JP2002057617A - Wireless terminal device, wireless communication system, and wireless terminal device initial setting method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce battery consumption as much as possible, and to supply battery power to a wireless receiving unit at any time by an external signal so as to be able to receive the battery immediately. SOLUTION: A battery 11, a radio reception unit 13 for acquiring information included in an external electromagnetic wave, a switch 15 connected between the battery and the radio reception unit, and power supply to the radio reception unit are controlled. Control unit 12 and push switch 17
And a timer 21, and the control unit turns on the switch at predetermined time intervals in accordance with the time information measured by the timer, intermittently supplies the battery power to the wireless reception unit, starts the battery, and activates the switch. When the switch is turned off, the switch is turned on in response to the operation of the push switch, and the battery power is supplied to the wireless receiving unit and started.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery-operated wireless terminal device, a wireless communication system using the wireless terminal device, and an initialization method for a battery-operated wireless terminal device.

[0002]

2. Description of the Related Art As a battery-driven wireless terminal device, for example, a mobile phone is known. Also, a battery-operated wireless terminal device is an electronic shelf label used for displaying prices on display shelves for displaying goods in stores and the like, and an electronic shelf label used for displaying inventory numbers on storage shelves for storing goods in warehouses and the like. It is also used as a shelf label.

[0003] Such a battery-operated wireless terminal device includes:
When most of the electric charge stored in the battery is released, the battery becomes useless, so that the battery can be used for a long time with minimal consumption. A wireless terminal device has a receiving circuit and a transmitting circuit.To minimize battery consumption, in particular, supply battery power intermittently to the receiving circuit and set a relatively long time during which the receiving circuit does not operate. ing.

[0004]

However, if the time period during which the receiving circuit does not operate is set to be relatively long, even if there is a signal addressed to the wireless terminal device from the outside, the receiving circuit does not operate and the signal cannot be received immediately. Then, it is necessary to wait until the receiving circuit operates by supplying the next battery power.

For example, when a wireless terminal device is used as an electronic shelf label for displaying the price of a product in a store, the price of the product is usually set in a predetermined time period before the store is opened. It is only necessary to supply power to the receiving circuit in accordance with the time, and the time zone is also set in the time service such as setting the time zone and selling the goods cheaply, so the receiving circuit is set according to the time zone Power supply to the wireless terminal device, and the communication time for price change to the wireless terminal device is short. Therefore, the receiving circuit is connected to the battery for a predetermined short time within one day to supply power. What is necessary is just to control by a timer so that it may be performed. Therefore, in this case, the time during which the receiving circuit does not operate can be set relatively long.

However, in the case of a product having a short storage period such as fresh food or the like, when the store is almost closed or the number of stocks is large, the store manager may decide to sell the product at a discount. In such a case, if the time during which the receiving circuit does not operate is set to be long, there is a problem that the price cannot be changed immediately. However, shortening the time during which the receiving circuit does not operate has the problem of shortening the battery life.

Therefore, according to the first to third aspects of the present invention, the time during which battery power is not supplied to the radio receiving unit can be set to be long to minimize battery consumption, and the period during which battery power is not supplied. The present invention provides a wireless terminal device which can supply battery power to a wireless receiving unit at any time by a signal from the outside and can immediately receive the wireless terminal device.

According to a fourth aspect of the present invention, in the wireless terminal device, the time during which battery power is not supplied to the wireless receiving unit is set to be long so that battery consumption can be minimized. In the period during which no power is supplied, the battery power can be supplied to the wireless receiving unit at any time by an external signal, and the wireless receiving unit can be immediately received.This makes it possible to transmit transmission information from the wireless communication device to the wireless terminal device. A wireless communication system capable of transmitting at any time is provided.

According to the invention of claims 9 to 11, initialization can be performed in advance, and after the initialization, the time during which battery power is not supplied to the wireless receiver is set to be long to minimize battery consumption. Provided is a method of initializing a wireless terminal device that can suppress the battery power and supply the battery power to the wireless reception unit at any time by a signal from the outside during a period in which the battery power is not supplied, so that the wireless reception device can be immediately received. .

[0010]

According to the first aspect of the present invention,
A battery, a wireless receiving unit that acquires information contained in electromagnetic waves from the outside, a control unit that controls power supply to the wireless receiving unit, an external signal detecting unit, and a time measuring unit, A wireless terminal that intermittently supplies battery power to a wireless reception unit according to time information measured by a time measurement unit and supplies battery power to the wireless reception unit according to an external signal detection output of an external signal detection unit In the device.

According to a second aspect of the present invention, in the wireless terminal device according to the first aspect, the external signal detection unit detects an external electromagnetic wave as an external signal, and the control unit does not supply the battery power to the wireless reception unit. During the period, the electromagnetic wave detection output of the external signal detection unit is supplied to the wireless reception unit, and when the wireless reception unit operates by the electromagnetic wave detection output of the external signal detection unit, the power of the battery is supplied to the wireless reception unit.

According to a third aspect of the present invention, in the wireless terminal device according to the first aspect, the external signal detection unit detects an external electromagnetic wave as an external signal, and the control unit sets a detection output of the external signal detection unit in advance. When the predetermined value is exceeded, the power of the battery is supplied to the wireless receiver.

According to a fourth aspect of the present invention, there is provided a wireless terminal device,
The wireless terminal device includes a wireless communication device that performs wireless communication with the wireless terminal device. The wireless terminal device controls a battery, a wireless receiving unit that acquires information included in an external electromagnetic wave, and power supply to the wireless receiving unit. A control unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit. The control unit intermittently supplies the battery power to the wireless reception unit according to the time information measured by the time measurement unit. While the battery is not being supplied to the wireless receiving unit, the detection output of the external signal detecting unit is supplied to the wireless receiving unit during the period in which the battery power is not supplied to the wireless receiving unit. The radio communication device supplies the radio reception device with the radio communication device and transmits the electromagnetic wave for operating the radio reception portion to the radio terminal device based on the detection output of the external signal detection portion, and then transmits the electromagnetic wave of the transmission information. In the Temu.

According to a fifth aspect of the present invention, there is provided a wireless terminal device,
The wireless terminal device includes a wireless communication device that performs wireless communication with the wireless terminal device. The wireless terminal device controls a battery, a wireless receiving unit that acquires information included in an external electromagnetic wave, and power supply to the wireless receiving unit. A control unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit. The control unit intermittently supplies the battery power to the wireless reception unit according to the time information measured by the time measurement unit. When the detection output of the external signal detection unit exceeds a predetermined value set in advance, the power of the battery is supplied to the wireless reception unit, and the wireless communication device sends the detection output of the external signal detection unit to the wireless terminal device. Is a wireless communication system that transmits an electromagnetic wave of transmission information after transmitting an electromagnetic wave exceeding a predetermined value.

According to a sixth aspect of the present invention, a wireless terminal device includes:
The wireless terminal device includes a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery, a wireless receiving unit that acquires information included in electromagnetic waves from the outside, and a power supply to the wireless receiving unit. Control unit, an external signal detection unit, and a time measurement unit. The control unit intermittently supplies battery power to the wireless reception unit in accordance with the time information measured by the time measurement unit. The power of the battery is supplied to the wireless receiving unit in response to the external signal detection output of the signal detecting unit, and one of the wireless communication devices is controlled by the control unit of the wireless terminal device in accordance with the time information measured by the time measuring unit. When the power of the wireless communication device is supplied to the wireless receiving unit, the control unit of the wireless terminal device controls the power of the battery according to the external signal detection output of the external signal detecting unit. Is sent when supplying the In a wireless communication system for transmitting an electromagnetic wave information.

According to a seventh aspect of the present invention, there is provided a wireless terminal device comprising:
The wireless terminal device includes a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery, a wireless receiving unit that acquires information included in electromagnetic waves from the outside, and a power supply to the wireless receiving unit. Control unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit intermittently transfers the battery power to the wireless reception unit according to the time information measured by the time measurement unit. While the power of the battery is not supplied to the wireless receiving unit, the detection output of the external signal detecting unit is supplied to the wireless receiving unit during the period in which the power of the battery is not supplied to the wireless receiving unit. Power is supplied to the wireless receiving unit, and one of the wireless communication devices transmits when the control unit of the wireless terminal device supplies the battery power to the wireless receiving unit according to the time information measured by the time measuring unit. Electromagnetic waves of information And Shin, one of the wireless communication device,
There is a wireless communication system in which a wireless terminal device transmits an electromagnetic wave such that a wireless reception unit operates based on a detection output of an external signal detection unit and then transmits an electromagnetic wave of transmission information.

The invention according to claim 8 is a wireless terminal device,
The wireless terminal device includes a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery, a wireless receiving unit that acquires information included in electromagnetic waves from the outside, and a power supply to the wireless receiving unit. Control unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit intermittently transfers the battery power to the wireless reception unit according to the time information measured by the time measurement unit. When the detection output of the external signal detection unit exceeds a predetermined value, the power of the battery is supplied to the wireless reception unit. One of the wireless communication devices is controlled by the control unit of the wireless terminal device. When supplying the power of the battery to the wireless receiving unit according to the time information measured by the measuring unit, the electromagnetic wave of the transmission information is transmitted, and one of the wireless communication devices detects the output of the external signal detecting unit in the wireless terminal device. Exceeds the specified value After transmitting the electromagnetic wave, in a wireless communication system for transmitting electromagnetic waves of transmitted information.

According to a ninth aspect of the present invention, there is provided a battery, a radio receiving unit for acquiring information contained in an external electromagnetic wave, a control unit for controlling power supply to the radio receiving unit, and an external signal detecting unit. In a wireless terminal device having a time measuring unit,
First, the external signal detection unit supplies power to the wireless reception unit from the battery by detecting an external signal, and then,
The wireless receiving unit receives time information including a time interval for causing the wireless receiving unit to intermittently supply the identification information and the battery power to the wireless receiving unit from the outside, whereby the time measuring unit sets the time information internally and immediately The time measurement is started, and thereafter, the control unit intermittently supplies battery power to the wireless reception unit according to the time information measured by the time measurement unit, and responds to the external signal detection output of the external signal detection unit. An initial setting method of a wireless terminal device that supplies power of a battery to a wireless receiving unit.

According to a tenth aspect of the present invention, there is provided a battery, a radio receiving unit for acquiring information contained in an external electromagnetic wave, a control unit for controlling power supply to the radio receiving unit, and an external electromagnetic wave. In the wireless terminal device provided with an external signal detection unit for detecting and a time measurement unit, first, the external signal detection unit supplies power to the wireless reception unit from the battery by detecting electromagnetic waves from the outside, and then, The receiving unit receives identification information and time information including a time interval for intermittently supplying the power of the battery to the wireless receiving unit, whereby the time measuring unit sets the time information internally and immediately sets the time. A period in which measurement is started, and thereafter, the control unit intermittently supplies battery power to the wireless reception unit according to the time information measured by the time measurement unit, and does not supply battery power to the wireless reception unit. An initial setting method of a wireless terminal device that supplies an electromagnetic wave detection output of an external signal detection unit to a wireless reception unit and supplies power of a battery to the wireless reception unit when the wireless reception unit operates by the electromagnetic wave detection output of the external signal detection unit It is in.

[0020] According to an eleventh aspect of the present invention, there is provided a battery, a radio reception unit for acquiring information contained in an electromagnetic wave from the outside, a control unit for controlling power supply to the radio reception unit, and an electromagnetic wave from the outside. In a wireless terminal device having an external signal detection unit to detect and a time measurement unit, the external signal detection unit first detects an electromagnetic wave from the outside, and when the detection output exceeds a predetermined value, the wireless reception unit Power is supplied from the battery, and subsequently, the wireless receiving unit externally receives identification information and time information including a time interval for causing the wireless receiving unit to intermittently supply battery power to the wireless receiving unit. Sets the time information internally and immediately starts the time measurement.After that, the control unit intermittently supplies the battery power to the wireless reception unit according to the time information measured by the time measurement unit, and outputs the external signal. Electromagnetic wave detection output of the detecting section is in the initial setting method of a wireless terminal device that supplies electric power of the battery exceeds a predetermined value in the radio receiver.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a block diagram showing the configuration of a wireless communication system. In a communication range 2 of a wireless base station 1 which is a wireless communication device, n wireless terminal devices 3-1 and 3- Two, three
-3,..., 3-n, and the n wireless terminal devices 3-1 to
3-n is managed by a terminal management device 5 connected to the wireless base station 1 via a communication line 4. The terminal management device 5 can communicate with other devices via a communication line 6.

Further, a portable terminal device 7, which is another wireless communication device, is located in a communicable range 2 of the wireless base station 1,
The mobile terminal device 7 can perform wireless communication with the wireless base station 1 while freely moving within the range 2.
In addition, the portable terminal device 7 and each of the wireless terminal devices 3-1 to 3-n
Can communicate wirelessly when the distance between them is short and close.

As shown in FIG. 2, each of the wireless terminal devices 3-1 to 3-n is provided with a battery 11, a control unit 12, a wireless receiving unit 13, and a wireless transmitting unit 14 constituting a power source.
The power supply terminal of the control unit 12 is connected to the power supply terminal of the wireless reception unit 13 via a switch 15 and the power supply terminal of the wireless transmission unit 14 via a switch 16.

The control section 12 outputs a predetermined voltage signal from an output terminal O 1, connects a push switch 17 between the output terminal O 1 and an input terminal I 1, and connects the input terminal I 1 via a resistor 18. Grounded. This allows
The input to the input terminal I1 is normally at a zero level, and when the push switch 17 is operated, a predetermined voltage signal from the output terminal O1 is input. When a predetermined voltage signal is input to the input terminal I1, a signal is output from the output terminal O2 and the switch 15 is turned on.

When the switch 15 is turned on, the wireless receiving unit 13 operates by supplying power from the battery 11,
In this state, when there is a reception at the input antenna 19, the signal is taken in, the signal is amplified, frequency-converted and demodulated to be a digital signal.
Is supplied to the input terminal I2. And
The control unit 12 stops the signal output from the output terminal O2 and turns off the switch 15 when the input of the reception signal from the wireless reception unit 13 is lost.

When a transmission signal is generated, the control section 12 outputs a signal from an output terminal O3 to turn on the switch 16, and supplies the power from the battery 11 to the radio transmission section 14 to operate the radio transmission section 14. In this state, a transmission signal is output from the output terminal O4 to the wireless transmission unit 14. The wireless transmission unit 14 modulates the input transmission signal, converts the frequency, converts the frequency, and transmits the signal as a radio wave from the output antenna 20. And the control unit 12
When the output of the signal to be transmitted ends, the signal output from the output terminal O3 is stopped and the switch 16 is turned off.

The control unit 12 has a timer 21 therein.
And outputs a signal from the output terminal O2 at a relatively long time interval to turn on the switch 15. When the radio receiving unit 13 receives a signal, the radio receiving unit 13 fetches a received signal from the radio receiving unit 13. When the fetching of the received signal is completed, the signal output from the output terminal O2 is stopped and the switch 15 is turned off. Has become. When the radio receiving unit 13 does not receive a signal, the output of the signal from the output terminal O2 is stopped after a certain period of time, and the switch 15 is turned off.

Next, the receiving operation of each of the wireless terminal devices 3-1 to 3-n will be described with reference to FIGS. FIG.
(A) shows the voltage state of the input line L1 to the power supply terminal of the wireless receiving unit 13, and (b) of FIG.
9 shows the intensity and time of the received radio wave on the input line L2 from the control unit 9 to the radio receiving unit 13. FIG.
2 shows the voltage state of the input line L3 to the input terminal I1.

Normally, the control unit 12 causes the timer 21 to turn on the switch 15 at predetermined time intervals. This timing is the timing of T1, T2 and T4 in FIG. FIG. 4 is an enlarged view of the timing T1 in FIG. Since the switch 15 is turned on at the timing T1, the power is supplied from the battery 11 to the wireless receiving unit 13, and the wireless receiving unit 13 starts operating.

If a signal is transmitted from the wireless base station 1 at this timing, the wireless receiving unit 13 receives the signal via the input antenna 19. The received signal at this time is composed of a bit synchronization signal B, a frame synchronization signal F, a source address and a destination address A, data DATA, and an error control code FCS, as shown in FIG. Then, when the control unit 12 determines that the reception of the signal is completed in the wireless reception unit 13, the control unit 12 turns off the switch 15.

Since the switch 15 is turned on also at the timing T2, the power is supplied from the battery 11 to the wireless receiving unit 13, and the wireless receiving unit 13 starts operating. However, at this timing, the wireless receiving unit 13 has not received a signal even after a certain time has elapsed, so the control unit 12 turns off the switch 15.

The timing T3 in FIG. 3 is a timing when the push switch 17 is turned on, and FIG. 5 is an enlarged view of the timing T3 at this time. That is, when the push switch 17 is turned on while the switch 15 is off, a voltage signal is generated on the L3 line as shown in FIG. 5C and input to the input terminal I1, so that the control unit 12 The switch 15 is turned on. As a result, as shown in FIG. 5A, a voltage from the battery 11 is generated on the L1 line and supplied to the wireless receiving unit 13, and the wireless receiving unit 13 starts operating.

In this state, when the input antenna 19 performs reception as shown in FIG. 5B, the radio reception unit 13 amplifies the received signal, converts the frequency, demodulates the signal, and supplies it to the control unit 12. Then, when the control unit 12 determines that the reception of the signal is completed in the wireless reception unit 13, the control unit 12 turns off the switch 15. Thereafter, the control unit 12 again turns on the switch 15 at the timing T4 by the timer 21. If a signal is transmitted from the wireless base station 1 at this time, the input antenna 19 is transmitted in the same manner as at the timing T1.
The wireless receiving unit 13 receives a signal via the.

As described above, the wireless terminal devices 3-1 to 3-n
By turning on the push switch 17 even during a period in which the wireless receiver 13 is not supplying power from the battery 11, the wireless receiver 13 can promptly supply power from the battery 11 and immediately Reception from the station 1 or the wireless communication device of the portable terminal device 7 is possible.

In a normal case where the push switch 17 is not turned on, the switch 15 is turned on at a relatively long time interval set in the timer 21 for a signal receiving period to supply power from the battery 11 to the radio receiving unit 13. Since it is performed, consumption of the battery 11 can be suppressed as much as possible.

When a person carrying the portable terminal device 7 communicates with the wireless terminal device, the user goes to the installation location of the wireless terminal device and turns on the push switch 17, so that The distance between the portable terminal device 7 and the wireless terminal device is extremely short, and therefore, the attenuation of radio waves is small, the transmission power from the portable terminal device 7 can be suppressed, and the power consumption in the portable terminal device 7 can be reduced. Can be reduced.

Each of the wireless terminal devices 3-1 to 3-n can be used as an electronic shelf label device by providing a display unit. Next, a case where the wireless terminal device is applied to an electronic shelf label device will be described.

As shown in FIG. 6, the radio base station 21 is installed on a ceiling or wall in a store, and via a communication line 22, an electronic shelf label management device (not shown) or a POS server (not shown). It is connected to the. Electronic shelf label devices 25, 26, 27, 28, and 29 are arranged on the product shelves 24 on which the products 23 are displayed, corresponding to the types of the products. Each of the electronic shelf label devices 25 to 29 has a configuration in which display units 25a, 26a, 27a, 28a, and 29a are provided in the above-described wireless terminal device. In addition, each of the electronic shelf label devices 25 to 29
Is a push switch 25 corresponding to the push switch 17 of the wireless terminal device described above beside the display units 25a to 29a.
b, 26b, 27b, 28b and 29b are arranged.
On the other hand, the clerk has a handy terminal 30 having a display unit which is a portable terminal device.

Each of the electronic shelf label devices 25 to 29 has a display unit 2
The price of the product 23 corresponding to 5a to 29a is displayed,
The price information is received from the wireless base station 21 before opening, and is set in the memory of the control unit. The timing is when power is supplied from the battery to the wireless receiving unit by the timer in each of the electronic shelf label devices 25 to 29, and at this time, the price information is transmitted from the wireless base station 21 to the electronic shelf label device. .

Most of the electronic shelf label devices 25 to 29 do not change the price once set throughout the day.
The electric power is supplied to the wireless receiving units in the electronic shelf label devices 25 to 29 at a long time interval of about once or twice a day.

When the closing time is approaching, there are still products such as fresh foods and ready-to-eats that must be sold on the same day, or there is a large inventory of certain products. In some cases, the price of a product may be reduced and sold at a discount.

In such a case, the clerk goes to the counter with the handy terminal 30 and determines the change price by checking the stock and the flow of people. Then, the display price of the corresponding electronic shelf label device is changed. For example, if the corresponding electronic shelf label device is the electronic shelf label device 25, first, the push switch 25b is operated. Thereby, the electronic shelf label device 2
In 5, the wireless receiving unit is connected to the battery to enter a receiving state.

In this state, the changed price data is transmitted to the electronic shelf label device 25 by operating the handy terminal 30 possessed. Electronic shelf label device 25 receiving the changed price data
Changes the price displayed on the display unit 25a. Then, it notifies the wireless base station 21 via the handy terminal 30 that the display price of the product has been changed.

The radio base station 21 is a handy terminal 30
When notified that the electronic shelf label device 25 has changed the display price, the electronic shelf label management device is notified of the change price of the product via the communication line 22. Then, the electronic shelf label management device notifies the POS server of the change price of the product. Thus, the price of the corresponding product is also changed in the POS server.

As a result, when the customer goes to the location of the POS terminal that performs the merchandise registration process with the corresponding merchandise, and registers the merchandise, the POS terminal receives the price data of the corresponding merchandise from the POS server. Shelf label device 25
And the product price registered at the POS terminal match.

In this way, the electronic shelf label devices 25-2
In No. 9, the time during which the wireless receiving unit is supplied with power from the battery can be shortened to reduce battery consumption, and
If you want to change the list price, you can change it immediately.

Here, the electronic shelf label device whose display price has been changed notifies the wireless base station 21 of the information via the handy terminal 30, but the electronic shelf label device directly sends the information to the wireless base station 21 from the electronic shelf label device. You may make it notify.

Next, the initial setting of the wireless terminal device will be described. The configuration of the wireless terminal device is the same as that of FIG.
The initial setting is performed at the time of inspection at the time of manufacturing the device and at the time of inputting initial data. That is, as shown in FIG. 7, the wireless terminal device 32 is placed on the belt conveyor 31 and transported in the direction of the arrow in the figure. Reference numeral 33 denotes a wireless inspection device, which is installed inside a shield case 34, in which wireless communication with the wireless terminal device 32 is possible, and initial data is transmitted. The shield case 34 has a function of weakening the electric power when radio waves generated inside are radiated to the outside.

The wireless inspection device 33 is a shield case 3
4 is connected to a computer 35 installed outside. Sensors 36 and 37 are provided at an entrance where the wireless terminal device 32 conveyed by the belt conveyor 31 enters the shield case 34 and an exit where the wireless terminal device 32 exits the shield case 34, respectively. The computer 35 detects that the wireless terminal device 32 enters the shield case 34 by the detection signal from the sensor 36, and detects that the wireless terminal device 32 exits the shield case 34 from the sensor 37. Understand by signal.

The computer 35 is a wireless terminal 32
When it is determined that the wireless terminal device 32 enters the shield case 34, the wireless test device 33 is controlled to take in the inspection result from the wireless terminal device 32 in the shield case 34 and write initial data to the wireless terminal device 32.

Next, on the belt conveyor 31, a section X
The operation in each section will be described with reference to the flowchart shown in FIG.

First, in the section X 1, the wireless terminal device 32 is in a state where the assembly is completed, and power is supplied from the battery 11 to the control unit 12. In this state,
In ST1, the wireless terminal device 32 is initialized. At this time, the switches 15 and 16 are off, and
Timer 21 is not operating. Further, the control unit 12 does not store the serial number or the set value of the timer 21 as the identification information.

When the wireless terminal device 32 is conveyed on the belt conveyor 31 and enters the section X2, the push switch 17 is operated. By the operation of the push switch 17, in ST2, the control unit 12 turns on the switch 15 to activate the wireless receiving unit 13 to make it possible to receive radio waves.

When the wireless terminal device 32 is further transported on the belt conveyor 31 and passes in front of the sensor 36, the computer 35 recognizes that the wireless terminal device 32 has entered the section X3, that is, the inside of the shield case 34, and proceeds to ST3. Outputs an instruction to start inspection to the wireless inspection device 33. Since the wireless terminal device 32 is in a receivable state, it can receive the radio wave transmitted from the wireless inspection device 33, and the wireless inspection device 33 performs the inspection of the wireless terminal device 32.

When the inspection is completed and it is confirmed that the wireless terminal device 32 is operating normally, data input is performed in ST4. The data at this time includes the wireless terminal device 3
The data includes a serial number of No. 2, a set value of the timer 21, data suitable for a shipping destination, and the like. Thereafter, in ST5, the timer 21 is operated, and the control for periodically turning on the switch 15 is repeated by this timer.
Means that power is supplied from the battery 11 at predetermined time intervals and the start-up is repeated intermittently.

When the wireless terminal device 32 is further conveyed on the belt conveyor 31 and passes in front of the sensor 37, the computer 35 recognizes that the wireless terminal device 32 has come out of the section X4, that is, the shield case 34. As for the wireless terminal devices 32 that have come out of the shield case 34, those that operate normally are shipped, and those that operate abnormally are removed.

When the wireless receiving unit 13 intermittently starts up, the initialization of the wireless terminal device 32 ends. However, the wireless terminal device 32 uses the time data counted by the timer 21 to switch the switch 15 by the control unit 12. An on operation is performed, and when the switch 15 is turned on, power from the battery 11 is supplied to the wireless reception unit 13. Then, if the wireless receiving unit 13 does not receive a radio wave even after a certain time has elapsed, the control unit 12 turns off the switch 15.

As described above, only the wireless terminal device that has been confirmed to operate normally by the inspection can be set to the intermittent reception state, and it is not necessary to activate the wireless terminal device at the shipping destination. Therefore, for example, when several hundred or more wireless terminal devices are installed in a store, a warehouse, or a factory as an electronic shelf label device or the like, each wireless terminal device is already in an activated state, so that it is not necessary to activate it again. The wireless terminal device can be installed efficiently. Therefore, even if the number of persons to be installed is small, it is possible to sufficiently cope with the situation.

(Second Embodiment) In this embodiment, the configuration of the entire system is the same as that of the first embodiment. The difference is the configuration of the wireless terminal devices 3-1 to 3-n. That is, as shown in FIG. 9, the wireless terminal devices 3-1 to 3-n supply a reception signal obtained by receiving radio waves by the input antenna 19 to the wireless reception unit 13 and constitute an external signal detection unit. It is supplied to the rectifier circuit 41. Then, after the output of the rectifier circuit 41 is smoothed by the smoothing circuit 42, the output is supplied to the power terminal of the wireless receiver 13 through the second contact 43b and the common contact 43c of the changeover switch 43.
A power terminal of the wireless receiving unit 13 is connected to the battery 11 via a common contact 43c and a first contact 43a of the changeover switch 43. The first contact 43a and the common contact 43c side of the changeover switch 43 are referred to as the following sides, and the second contact 43b and the common contact 43c are referred to as
Hereinafter, it is referred to as a side.

In this configuration, when the power of the radio wave received by the input antenna 19 is large while the changeover switch 43 is on, the power is supplied to the wireless receiving unit 13 via the rectifying circuit 41 and the smoothing circuit 42. In this state, the radio receiving unit 13 amplifies the signal received from the input antenna 19, converts the frequency, and further demodulates the signal.
1 to input a digital signal.

Next, the reception operation of the wireless terminal device will be described with reference to FIGS. FIG. 10A shows the operation timing of the changeover switch 43, where indicates that the side is on, and indicates that the side is on. FIG. 10B shows a voltage state of the input line L1 to the power supply terminal of the wireless receiving unit 13, and FIG. 10C shows an input line L1 from the input antenna 19 to the wireless receiving unit 13.
2 shows the intensity and time of the received radio wave in FIG.

The control unit 121 has a timer 211 therein, and the timer 211 causes the control unit 121 to switch the switch 43 from side to side at predetermined time intervals so as to connect the radio receiving unit 13 to the battery 11. It has become. That is, the control unit 121 determines whether the timings T11 and T1
3. At T15, the changeover switch 43 is switched from side to side.

FIG. 11 is an enlarged view of the timing T11 in FIG. 10. At this timing T11, as shown in FIG. 11A, the changeover switch 43 is switched from side to side, so that the radio receiving unit 13 Connected, the voltage state of the input line L1 to the power supply terminal of the wireless receiving unit 13 is a threshold voltage TH for operating the wireless receiving unit 13 as shown in (b).
Over one. As a result, as shown in (c), the wireless receiving unit 13 can capture a received signal from a weak radio wave received by the input antenna 19.

The received signal at this time comprises a bit synchronization signal B, a frame synchronization signal F, a source address and a destination address A, data DATA, and an error control code FCS, as shown in FIG. I have. And the control unit 12
1 switches the changeover switch 43 from side to side when the wireless receiving unit 13 determines that the reception of the signal is completed.

Also, at the timing T13, the changeover switch 43 is switched from side to side, so that the wireless receiving unit 13 is connected to the battery 11 and the wireless receiving unit 13 starts operating. However, at this timing, the wireless receiving unit 13 has not received a signal even after a certain time has elapsed, so the control unit 121 switches the changeover switch 43 from side to side.

Also, at timing T15, as in timing T11, the changeover switch 43 is switched from side to side, so that the wireless receiving unit 13 is connected to the battery 11 and the input line L1 to the power terminal of the wireless receiving unit 13 is connected. Voltage state exceeds the threshold voltage TH1 for operating the radio receiving unit 13. Thus, the wireless receiving unit 13 can capture a received signal from a weak radio wave received by the input antenna 19.

At the timing T12, the input antenna 1 is switched on while the changeover switch 43 is turned on.
When a radio wave is input to the rectifying circuit 41,
The signal is rectified and smoothed via the smoothing circuit 42 and supplied to the power supply terminal of the wireless receiving unit 13. However, since the radio wave at this time is weak and the voltage supplied to the power supply terminal of the wireless receiving unit 13 is equal to or lower than the threshold voltage TH1, the wireless receiving unit 13
Does not perform the receiving operation.

FIG. 12 is an enlarged view of the timing T14 in FIG. 10. At this timing T14, as shown in FIG. 12B, a radio wave is input to the input antenna 19 while the changeover switch 43 is turned on. Then, the received signal is rectified and smoothed via the rectifying circuit 41 and the smoothing circuit 42 and supplied to the power supply terminal of the wireless receiving unit 13. As shown in FIG. 11C, the received signal is a bit synchronization signal B,
It comprises a frame synchronization signal F, a source address and a destination address A, data DATA, and an error control code FCS. At this time, since the power of the radio wave including the bit synchronization signal B is large, the voltage supplied to the power supply terminal of the wireless receiving unit 13 exceeds the threshold voltage TH1, and the wireless receiving unit 13 starts operating. The wireless receiving unit 13 first receives the bit synchronization signal B, performs frequency conversion and demodulation, and inputs the demodulated bit synchronization signal B to the control unit 121.

Upon receiving the bit synchronization signal B, the control section 121 switches the changeover switch 43 from side to side.
As a result, the wireless receiving unit 13 is supplied with power from the battery 11 and can perform a stable operation. Thus, the wireless receiving unit 13 receives the bit synchronization signal B, the frame synchronization signal F, the source address and the destination address A, the data DATA, and the error control code FCS.
Thereafter, when the control unit 121 determines that the reception of the signal has been completed in the wireless reception unit 13, the control unit 121 switches the switch 43 from side to side.

In such a configuration, the radio base station 1
Since the distance between the radio base station 1 and the radio terminal device is large, the amount of attenuation of the radio wave transmitted from the radio base station 1 until it is received by the radio terminal device is large, and the timings T11, T12, T12 in FIG.
As shown in FIG. 15, the received power decreases. In such a case, the information may be transmitted from the wireless base station 1 at the timing when the wireless receiving unit 13 of the wireless terminal device is supplied with power from the battery 11. That is, in the wireless terminal device, the timer 2
Information may be transmitted from the wireless base station 1 in accordance with the timing at which the changeover switch 43 is switched from side to side by means of 11.

When the person carrying the portable terminal device 7 approaches the wireless terminal device and performs transmission, the reception power in the wireless terminal device increases as shown at timing T14 in FIG. The unit 13 becomes operable. Therefore, the transmission from the portable terminal device 7 to the wireless terminal device can be performed at any time while the person carrying the portable terminal device 7 approaches the corresponding wireless terminal device.

As described above, the wireless terminal device can communicate with the wireless communication device even during the period when power is not supplied from the battery 11 to the wireless receiving unit 13. In addition, since power is normally supplied from the battery 11 to the wireless reception unit 13 for a short time at a relatively long time interval set in the timer 211, the consumption of the battery 11 can be minimized.

In this embodiment, the timing T
After receiving the bit synchronization signal B in 14, the changeover switch 43 is switched from side to side to connect the wireless receiving unit 13 to the battery 11 and then perform the receiving operation. However, the present invention is not limited to this, and the smoothing is not limited to this. If the power supply from the circuit 42 to the wireless receiving unit 13 is performed stably and the wireless receiving unit 13 can operate stably, the changeover switch 43
The receiving operation may be performed without switching.

The wireless terminal device can be used as an electronic shelf label device by providing a display unit. Next, a case where the wireless terminal device is applied to an electronic shelf label device will be described.

As shown in FIG. 13, the wireless base station 51 is installed on a ceiling or wall in a store, and via a communication line 52, an electronic shelf label management device (not shown) or a POS server (not shown). It is connected to the. Electronic shelf labels 55, 56, 57, 58, and 59 are arranged on the product shelves 54 on which the products 53 are displayed, corresponding to the types of the products. Each of the electronic shelf label devices 55 to 59 has a configuration in which display portions 55a, 56a, 57a, 58a, and 59a are provided in the above-described wireless terminal device. On the other hand, the clerk has a handy terminal 60 having a display unit which is a portable terminal device.

Each of the electronic shelf label devices 55 to 59 has a display unit 5
The price of the product 53 corresponding to 5a to 59a is displayed,
The price information is received from the wireless base station 51 before opening, and is set in the memory of the control unit. The timing is when power is supplied from the battery to the wireless receiving unit by the timer in each of the electronic shelf label devices 55 to 59, and at this time, the price information is transmitted from the wireless base station 51 to the electronic shelf label device. .

Most of the electronic shelf label devices 55 to 59 do not change the price once set throughout the day.
The electric power is supplied to the wireless receiving unit in the electronic shelf labeling devices 55 to 59 at a long time interval of about once or twice a day.

Then, even though the closing time is approaching, there are still products such as fresh foods and prepared dishes which must be sold on the same day, or there is a large stock of certain products. In some cases, the price of a product may be reduced and sold at a discount.

In such a case, the clerk goes to the counter with the handy terminal 60 and determines the change price by checking the stock and the flow of people. Then, the display price of the corresponding electronic shelf label device is changed. For example, if the corresponding electronic shelf label device is the electronic shelf label device 55, the user goes to the electronic shelf label device 55 and operates the handy terminal 60 to transmit the changed price data to the electronic shelf label device 55.

At this time, the electronic shelf label device 55 and the handy terminal 60 are close to each other, and the handy terminal 6
The reception power of the electronic shelf label device 55 that has received the radio wave from 0 is large, and the radio receiving unit starts operation by receiving the power of the radio wave including the bit synchronization signal from the handy terminal 60,
The bit synchronization signal from the handy terminal 60 is received. Thereby, the control unit switches the changeover switch to connect the wireless receiving unit to the battery, and thereafter, the wireless receiving unit operates stably. Therefore, for example, even if the direction of the radio wave propagation between the handy terminal 60 and the electronic shelf label device slightly changes due to, for example, a change in the direction of the handy terminal 60 held by the clerk with respect to the electronic shelf label device, the change from the handy terminal 60 can be performed. Receive price data stably.

In this way, the electronic shelf label device 55 is
Change the price displayed in a. Then, it notifies the wireless base station 51 via the handy terminal 60 that the display price of the product has been changed.

The wireless base station 51 is a handy terminal 60
When notified that the electronic shelf label device 55 has changed the displayed price, the electronic shelf label management device is notified of the changed price of the product via the communication line 52. Then, the electronic shelf label management device notifies the POS server of the change price of the product. Thus, the price of the corresponding product is also changed in the POS server.

Thus, when the customer goes to the location of the POS terminal that performs the merchandise registration process with the corresponding merchandise, the POS terminal receives the price data of the corresponding merchandise from the POS server. Shelf label device 25
And the product price registered at the POS terminal match.

In this way, the electronic shelf label devices 55 to 5
In No. 9, the time during which the wireless receiving unit is supplied with power from the battery can be shortened to reduce battery consumption, and
If you want to change the list price, you can change it immediately.

Here, the electronic shelf label device whose display price has been changed notifies the wireless base station 51 of the information via the handy terminal 60. However, the electronic shelf label device directly sends the information to the wireless base station 51 from the electronic shelf label device. You may make it notify.

Next, the initial setting of the wireless terminal device will be described. The configuration of the wireless terminal device is the same as that of FIG.
The initial setting is performed at the time of inspection at the time of manufacturing the device and at the time of inputting initial data. That is, as shown in FIG. 14, the wireless terminal device 62 is placed on the belt conveyor 61 and transported in the direction of the arrow in the figure. A wireless inspection device 63 is installed inside a shield case 64, in which wireless communication with the wireless terminal device 62 is possible, and initial data is transmitted. The shield case 64 has a function of weakening the electric power when radio waves generated inside are radiated to the outside.

The wireless inspection device 63 has a shield case 6
4 is connected to a computer 65 installed outside. Sensors 66 and 67 are provided at the entrance where the wireless terminal device 62 conveyed by the belt conveyor 61 enters the shield case 64 and at the exit where the wireless terminal device 62 exits the shield case 64, respectively. The computer 65 detects that the wireless terminal device 62 enters the shield case 64 by the detection signal from the sensor 66, and detects that the wireless terminal device 62 exits the shield case 64 from the sensor 67. Understand by signal.

The computer 65 is a wireless terminal device 62
When it is determined that the wireless terminal device 62 enters the shield case 64, the wireless test device 63 is controlled to take in the inspection result from the wireless terminal device 62 in the shield case 64 and write initial data to the wireless terminal device 62.

Next, on the belt conveyor 61, the section X1
The operation in each section will be described with reference to the flowchart shown in FIG.

First, in the section X11, the wireless terminal device 62 is in a state where the assembly is completed, and power is supplied from the battery 11 to the control unit 121. In this state, initialization of the wireless terminal device 62 is performed in ST11. At this time, the changeover switch 43 has been switched to the side, and the timer 211 is not operating.
Further, the control unit 121 does not store the serial number or the set value of the timer 211 as the identification information.

When the wireless terminal device 62 is conveyed on the belt conveyor 61 and passes in front of the sensor 66, the computer 65 sets the wireless terminal device 62 to the section X12, that is,
Upon detecting that it has entered the shield case 64, it outputs a command to output a radio wave to the wireless inspection device 63. Accordingly, the wireless detection device 63 transmits a radio wave to the wireless terminal device 62.

In ST12, when receiving the radio wave from the wireless inspection device 63, the wireless terminal device 62 receives the radio wave from the input antenna 19 via the rectifier circuit 41 and the smoothing circuit 42,
And the wireless receiving unit 13 is activated. When the wireless receiving unit 13 is activated, communication becomes possible between the wireless inspection device 63 and the wireless terminal device 62.
At T13, the wireless inspection device 63 performs an inspection of the wireless terminal device 62.

When the inspection is completed and it is confirmed that the wireless terminal device 62 is operating normally, data input is performed in ST14. The data at this time includes the wireless terminal device 6
2 is a serial number, a set value of the timer 211, data suitable for a shipping destination, and the like. Then, in ST15, the timer 21
1 and the control for periodically switching the changeover switch 43 by this timer is repeated, and the radio receiving unit 13 is supplied with power from the battery 11 at predetermined time intervals and repeats the start-up intermittently. .

When the wireless terminal device 62 is further conveyed on the belt conveyor 61 and passes in front of the sensor 67, the computer 65 recognizes that the wireless terminal device 62 has exited from the section X13, that is, from the shield case 64. As for the wireless terminal devices 62 that have come out of the shield case 64, those that operate normally are shipped, and those that operate abnormally are removed.

When the wireless receiving unit 13 intermittently starts, the initial setting of the wireless terminal device 62 ends. However, the wireless terminal device 62 is controlled by the control unit 121 by the changeover switch 43 based on the time data counted by the timer 211.
Is performed, and the power from the battery 11 is supplied to the wireless reception unit 13 at the timing when the changeover switch 43 is switched to the side. Then, if the wireless receiving unit 13 does not receive the radio wave even after the lapse of the certain time, the control unit 121 switches the changeover switch 43 to switch.

As described above, only the wireless terminal device that has been confirmed to operate normally by the inspection can be set to the intermittent reception state, and it is not necessary to activate the wireless terminal device at the shipping destination. Therefore, for example, when several hundred or more wireless terminal devices are installed in a store, a warehouse, or a factory as an electronic shelf label device or the like, each wireless terminal device is already in an activated state, so that it is not necessary to activate it again. The wireless terminal device can be installed efficiently. Therefore, even if the number of persons to be installed is small, it is possible to sufficiently cope with the situation.

(Third Embodiment) In this embodiment, the configuration of the entire system is the same as that of the first embodiment. The difference is the configuration of the wireless terminal devices 3-1 to 3-n. That is, as shown in FIG. 16, the wireless terminal devices 3-1 to 3-n supply a reception signal obtained by receiving radio waves by the input antenna 19 to the wireless reception unit 13 and constitute an external signal detection unit. It is supplied to the rectifier circuit 41. The output of the rectifier circuit 41 is input to the input terminal I3 of the control unit 122.

The control unit 122 includes a timer 2 provided inside.
The control for turning on the switch 15 by outputting a signal from the output terminal O2 at a relatively long time interval by 1 is the same as the control unit 12 in the first embodiment described above. The control unit 122 turns on the switch 15 when the voltage input from the rectifier circuit 41 via the input line L4 exceeds the threshold voltage TH2.

In this configuration, when the input antenna 19 receives a radio wave, a received signal is supplied to the rectifier circuit 41 and the radio receiver 13. When the power of the radio wave received by the input antenna 19 is large, the voltage output from the rectifier circuit 41 increases. The received signal input from the input antenna 19 to the wireless receiving unit 13 is amplified, frequency-converted, demodulated, and input to the control unit 122 as a digital signal.

Next, the receiving operation of the wireless terminal device will be described with reference to FIGS. FIG. 17A shows a voltage state of the input line L1 to the power supply terminal of the wireless receiving unit 13, and FIG. 17B shows reception of the input line L2 from the input antenna 19 to the wireless receiving unit 13. FIG. 17C shows the voltage state of the input line L4 to the input terminal I3 of the control unit 12. FIG.

The control section 122 turns on the switch 15 at predetermined time intervals by the timer 21 to connect the wireless receiving section 13 to the battery 11. That is, the control unit 122 turns on the switch 15 at timings T21, T22, and T24.

FIG. 18 is an enlarged view of the timing T21 in FIG. 17. At this timing T21, the switch 15 is turned on, so that power is supplied from the battery 11 to the radio receiving unit 13, and the radio receiving unit 13 starts operating. . If a signal is transmitted from the wireless base station 1 at this timing, the wireless receiving unit 13 receives the signal via the input antenna 19.

The received signal at this time comprises a bit synchronization signal B, a frame synchronization signal F, a source address and a destination address A, data DATA, and an error control code FCS, as shown in FIG. I have. And the control unit 12
2 turns off the switch 15 when the wireless receiving unit 13 determines that the reception of the signal is completed. At this time, the power of the radio wave received by the input antenna 19 is weak, and the control unit 12
The control unit 122 receives the signal even when the voltage input to the second input terminal I3 is equal to or lower than the threshold voltage.

Since the switch 15 is turned on also at the timing T22, the power is supplied from the battery 11 to the radio reception unit 13, and the radio reception unit 13 starts operating. However, at this timing, the wireless receiving unit 13 has not received a signal even after a certain time has elapsed, so the control unit 122 turns off the switch 15.

Timing T23 in FIG. 17 is an operation when the input antenna 19 receives a radio wave having a large power when the switch 15 is in the off state. This timing T
FIG. 19 is an enlarged view of FIG. That is, switch 1
When the input antenna 19 receives a radio wave with a large power during the period when the switch 5 is off, the voltage appearing on the L2 line increases as shown in FIG.

Therefore, at this time, the output voltage from the rectifier circuit 41 becomes high, and the signal voltage input to the input terminal I3 of the control unit 122 becomes the threshold voltage as shown in FIG. 17 (c) and FIG. 19 (c). It becomes higher than the voltage TH2. Thereby, the control unit 122 turns on the switch 15. Switch 15
Is turned on, the wireless receiving unit 13 is connected to the battery 11, and the wireless receiving unit 13 starts operating.

In the wireless terminal device, the received signal cannot be correctly demodulated until the wireless receiving unit 13 is activated. For this reason, the wireless communication device that transmits the transmission signal to the wireless terminal device continues to transmit the bit synchronization signal B from the start of transmission until the wireless reception unit 13 of the wireless terminal device is activated and establishes bit synchronization.

When the bit synchronization is established in the wireless terminal device, the wireless communication device continues the frame synchronization signal F,
Source address and destination address A, data DATA,
The error control code FCS is transmitted, and the wireless terminal device sequentially receives the error control code as shown in FIG. Then, when the control unit 122 determines that the reception of the signal is completed in the wireless reception unit 13, the control unit 122 turns off the switch 15.

FIG. 20 is an enlarged view of the timing T24 in FIG. 17. At this timing T24, the power of the radio wave received by the input antenna 19 is relatively large, and the voltage input from the input line L4 to the input terminal I3 of the control unit 122 is shown. Is the threshold voltage TH as shown in FIG. 17 (c) and FIG. 20 (c).
Although it is higher than 2, since the switch 15 has already been turned on, this state is maintained and the receiving operation is continued.

As described above, when the switch 15 is turned on and the radio receiving unit 13 is connected to the battery 11, the signal can be received even if the radio wave received by the input antenna 19 is weak. Accordingly, since the distance between the wireless base station 1 and the wireless terminal device is large, the amount of attenuation until the radio wave transmitted from the wireless base station 1 is received by the wireless terminal device is large, and the amount of attenuation is shown at timing T21 in FIG. In the case where the received power is reduced as described above, the information may be transmitted from the wireless base station 1 at the timing when the wireless receiving unit 13 of the wireless terminal device is supplied with power from the battery 11. That is, in the wireless terminal device, the timer 2
1, the information may be transmitted from the wireless base station 1 at the timing when the switch 15 is turned on.

When the person carrying the portable terminal device 7 approaches the wireless terminal device and performs transmission, the reception power in the wireless terminal device increases as shown at timing T23 in FIG. The receiving unit 13 becomes operable. Therefore, in such a case, the person carrying the mobile terminal device 7 can go to the installation location of the corresponding wireless terminal device at any time and transmit information from the mobile terminal device 7 to the wireless terminal device.

Further, when the distance between the wireless base station 1 and the wireless terminal device is relatively short, the timing T in FIG.
As shown in FIG. 24, the reception power in the wireless terminal device may exceed the threshold voltage TH2. In such a case, since the wireless receiving unit 13 becomes operable, the wireless terminal device can start the receiving operation even when the switch 15 is not turned on by the timer 21. Therefore, even in such a case, the information can be transmitted from the wireless base station 1 to the wireless terminal device at any time.

As described above, the wireless terminal device is connected to the switch 1
5 is in the off state and the wireless receiving unit 13 is not supplied with power from the battery 11 even when the wireless receiving unit 13 is not powered.
To communicate with the wireless communication device. Moreover,
Normally, power is supplied from the battery 11 to the wireless receiving unit 13 for a short time at a relatively long time interval set in the timer 211, so that consumption of the battery 11 can be suppressed as much as possible.

In this embodiment, the wireless terminal device can be applied to the electronic shelf label device, and the application example is the same as that of the second embodiment described above, and has the configuration shown in FIG. . Further, the initial setting of the wireless terminal device in this embodiment can be performed in the same manner as in the above-described second embodiment, and has the configuration shown in FIG.

[0115]

As described above in detail, according to the first to third aspects of the present invention, it is possible to set the time during which the battery power is not supplied to the radio receiving unit to be long, thereby minimizing battery consumption. In addition, it is possible to provide a wireless terminal device capable of quickly supplying battery power to the wireless receiving unit when receiving a signal from the outside and receiving the signal immediately.

Further, according to the inventions set forth in claims 4 to 8, in the wireless terminal device, the time during which battery power is not supplied to the wireless receiving unit can be set long to minimize battery consumption. When receiving a signal from the outside, it is possible to quickly supply battery power to the wireless receiving unit and immediately receive the signal, so that whenever it is desired to transmit transmission information from the wireless communication device to the wireless terminal device, A wireless communication system capable of transmitting can be provided.

According to the ninth to eleventh aspects of the present invention, the initial setting can be performed in advance, and after the initial setting, the time during which the battery power is not supplied to the radio receiving unit is set to be longer to reduce the battery consumption. In addition, it is possible to provide a method of initializing a wireless terminal device capable of quickly supplying battery power to a wireless receiving unit and receiving a signal immediately when receiving a signal from the outside.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless communication system according to a first embodiment of the present invention.

FIG. 2 is a circuit configuration diagram showing a configuration of the wireless terminal device according to the embodiment;

FIG. 3 is a timing waveform chart for explaining a reception operation of the wireless terminal device according to the embodiment.

FIG. 4 is an enlarged waveform diagram at a timing T1 in FIG. 3;

FIG. 5 is an enlarged waveform diagram at a timing T3 in FIG. 3;

FIG. 6 is a diagram showing an example in which the wireless terminal device according to the embodiment is applied to an electronic shelf label device;

FIG. 7 is a diagram showing an example of initial setting of the wireless terminal device according to the embodiment;

FIG. 8 is a flowchart showing a procedure at the time of initialization in FIG. 7;

FIG. 9 is a circuit configuration diagram showing a configuration of a wireless terminal device according to a second embodiment of the present invention.

FIG. 10 is a timing waveform chart for explaining a reception operation of the wireless terminal device according to the embodiment.

11 is an enlarged waveform diagram of a timing T11 in FIG.

FIG. 12 is an enlarged waveform diagram at a timing T14 in FIG. 10;

FIG. 13 is a diagram illustrating an example in which the wireless terminal device according to the embodiment is applied to an electronic shelf label device;

FIG. 14 is a diagram showing an example of initial setting of the wireless terminal device according to the embodiment;

FIG. 15 is a flowchart showing a procedure at the time of initial setting in FIG. 14;

FIG. 16 is a circuit configuration diagram showing a configuration of a wireless terminal device according to a third embodiment of the present invention.

FIG. 17 is a timing waveform chart for explaining a reception operation of the wireless terminal device according to the embodiment.

18 is an enlarged waveform diagram of a timing T21 in FIG.

19 is an enlarged waveform diagram at a timing T23 in FIG.

20 is an enlarged waveform diagram of a timing T24 in FIG.

[Explanation of symbols]

 3-1 to 3-n: wireless terminal device 11: battery 12, control unit 13, wireless receiving unit 15, switch 17, push switch 19, input antenna 21, timer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04B 1/40 G06K 19/00 HJ F term (Reference) 3E042 BA20 CE07 5B035 AA05 BB09 BC00 CA13 CA23 5B058 CA15 KA02 KA04 KA11 KA28 YA20 5K011 DA28 DA29 GA01 JA01 KA03 5K067 AA43 BB21 CC22 DD17 DD30 DD51 EE02 EE10 KK05

Claims (11)

[Claims] 1. A battery comprising: a battery; a radio reception unit for acquiring information contained in an external electromagnetic wave; a control unit for controlling power supply to the radio reception unit; an external signal detection unit; and a time measurement unit The control unit intermittently supplies the power of the battery to the wireless reception unit according to time information measured by the time measurement unit, and the battery according to an external signal detection output of the external signal detection unit. A wireless terminal device for supplying power to the wireless receiving unit. 2. An external signal detecting section detects an external electromagnetic wave as an external signal, and a control section receives the electromagnetic wave detection output of the external signal detecting section during a period during which power of a battery is not supplied to the wireless receiving section. The wireless terminal device according to claim 1, wherein the wireless terminal device supplies the power of the battery to the wireless receiving portion when the wireless receiving portion operates by the electromagnetic wave detection output of the external signal detecting portion. 3. An external signal detecting unit detects an external electromagnetic wave as an external signal, and a control unit supplies battery power to the wireless receiving unit when a detection output of the external signal detecting unit exceeds a predetermined value set in advance. The wireless terminal device according to claim 1, wherein the wireless terminal device is supplied. 4. A wireless terminal device, comprising: a wireless communication device that performs wireless communication with the wireless terminal device; wherein the wireless terminal device includes a battery and a wireless receiving unit that obtains information included in an external electromagnetic wave. A control unit that controls power supply to the wireless reception unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit controls the time information measured by the time measurement unit. In accordance with intermittently supplying the power of the battery to the wireless receiving unit, during a period in which the power of the battery is not supplied to the wireless receiving unit, a detection output of the external signal detecting unit is supplied to the wireless receiving unit, When the wireless receiving unit operates based on the detection output of the external signal detecting unit, the wireless power supply unit supplies the battery power to the wireless receiving unit, and the wireless communication device detects the external signal detecting unit with respect to the wireless terminal device. After transmitting an electromagnetic wave in which the radio receiver is operated by a force, a wireless communication system, characterized by transmitting electromagnetic waves of transmitted information. 5. A wireless terminal device comprising: a wireless terminal device; and a wireless communication device that performs wireless communication with the wireless terminal device. The wireless terminal device includes a battery and a wireless receiving unit that acquires information included in an external electromagnetic wave. A control unit that controls power supply to the wireless reception unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit controls the time information measured by the time measurement unit. In response, the battery power is intermittently supplied to the wireless receiving unit, and when the detection output of the external signal detecting unit exceeds a predetermined value, the battery power is supplied to the wireless receiving unit. A wireless communication system, wherein the wireless communication device transmits an electromagnetic wave whose detection output of the external signal detector exceeds a predetermined value to the wireless terminal device, and then transmits an electromagnetic wave of transmission information. 6. A wireless terminal device comprising: a wireless terminal device; and a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery and a wireless receiver that acquires information included in an external electromagnetic wave. Unit, a control unit that controls power supply to the wireless reception unit, an external signal detection unit, and a time measurement unit, and the control unit controls the battery according to time information measured by the time measurement unit. While intermittently supplying power to the wireless receiving unit, supplying power of the battery to the wireless receiving unit according to an external signal detection output of the external signal detecting unit, one of the wireless communication devices, The control unit of the wireless terminal device transmits an electromagnetic wave of transmission information when supplying power of the battery to the wireless reception unit according to time information measured by the time measurement unit, and one of the wireless communication devices Is the wireless terminal device Wherein the control unit transmits an electromagnetic wave of transmission information when supplying power of the battery to the wireless receiving unit in accordance with an external signal detection output of the external signal detecting unit. 7. A wireless terminal device comprising: a wireless terminal device; and a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery and a wireless reception device that obtains information included in electromagnetic waves from outside. Unit, a control unit that controls power supply to the wireless reception unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit controls the time measured by the time measurement unit. The power of the battery is intermittently supplied to the wireless receiving unit according to the information, and the detection output of the external signal detecting unit is supplied to the wireless receiving unit during a period in which the power of the battery is not supplied to the wireless receiving unit. Then, when the wireless receiving unit operates according to the detection output of the external signal detecting unit, the power of the battery is supplied to the wireless receiving unit, and one of the wireless communication devices includes a control unit of the wireless terminal device, Hour meter Transmitting electromagnetic waves of transmission information when supplying power of the battery to the wireless receiving unit in accordance with time information measured by the unit, wherein one of the wireless communication devices detects the external signal in the wireless terminal device; And transmitting an electromagnetic wave of the transmission information after transmitting an electromagnetic wave such that the wireless receiving unit operates according to a detection output of the unit. 8. A wireless terminal device comprising: a wireless terminal device; and a plurality of wireless communication devices that perform wireless communication with the wireless terminal device. The wireless terminal device includes a battery and a wireless receiver that acquires information contained in an external electromagnetic wave. Unit, a control unit that controls power supply to the wireless reception unit, an external signal detection unit that detects an external electromagnetic wave, and a time measurement unit, and the control unit controls the time measured by the time measurement unit. The power of the battery is intermittently supplied to the wireless receiving unit according to the information, and the power of the battery is supplied to the wireless receiving unit when the detection output of the external signal detecting unit exceeds a predetermined value set in advance. One of the wireless communication devices, when the control unit of the wireless terminal device supplies the power of the battery to the wireless receiving unit according to the time information measured by the time measuring unit, the electromagnetic wave of the transmission information. Send and said One of the wireless communication devices transmits an electromagnetic wave whose detection output of the external signal detector exceeds a predetermined value in the wireless terminal device, and then transmits an electromagnetic wave of transmission information. . 9. A wireless communication system comprising: a battery; a radio reception unit for acquiring information contained in an external electromagnetic wave; a control unit for controlling power supply to the radio reception unit; an external signal detection unit; and a time measurement unit. In the wireless terminal device, first, the external signal detection unit supplies power from the battery to the wireless reception unit by detecting an external signal, and subsequently, the wireless reception unit receives identification information from the outside and the identification information. Receiving time information including a time interval for intermittently supplying battery power to the wireless receiving unit, whereby the time measuring unit sets the time information internally and immediately starts time measurement; The control unit intermittently supplies the power of the battery to the wireless reception unit in accordance with the time information measured by the time measurement unit, and the external signal detection unit according to the external signal detection output of the external signal detection unit. Initialization method for a wireless terminal device and supplying the power of the pond to the radio receiver. 10. A battery, a radio reception unit for acquiring information contained in an external electromagnetic wave, a control unit for controlling power supply to the radio reception unit, and an external signal detection unit for detecting an external electromagnetic wave And a wireless terminal device including a time measuring unit, wherein the external signal detecting unit first supplies power from the battery to the wireless receiving unit by detecting an external electromagnetic wave, and then the wireless receiving unit Externally receives identification information and time information including a time interval for intermittently supplying the power of the battery to the wireless reception unit, whereby the time measurement unit sets the time information internally and immediately receives the time information. The measurement is started. Thereafter, the control unit intermittently supplies the power of the battery to the wireless reception unit according to the time information measured by the time measurement unit, and the power of the battery is previously During a period in which the signal is not supplied to the wireless receiving unit, the electromagnetic wave detection output of the external signal detecting unit is supplied to the wireless receiving unit. A method for initializing a wireless terminal device, wherein the method is supplied to a receiving unit. 11. A battery, a radio reception unit for acquiring information contained in an external electromagnetic wave, a control unit for controlling power supply to the radio reception unit, and an external signal detection unit for detecting an external electromagnetic wave In the wireless terminal device provided with a time measuring unit, first, the external signal detecting unit detects external electromagnetic waves, and when the detection output exceeds a predetermined value, the wireless receiving unit supplies power to the wireless receiving unit from the battery. Then, the wireless receiving unit receives time information including a time interval for causing the wireless receiving unit to intermittently supply the identification information and the power of the battery to the wireless receiving unit from the outside, and thereby, the time measuring unit Sets time information internally and immediately starts time measurement.After that, the control unit intermittently supplies the power of the battery to the wireless reception unit according to the time information measured by the time measurement unit. Together with the initial setting method of a wireless terminal and wherein the electromagnetic wave detection output of the external signal detecting unit to supply the power of the battery exceeds the predetermined value in the radio receiver.