CN103049987B - Gauge table, wireless meter reading system and method - Google Patents
Gauge table, wireless meter reading system and method Download PDFInfo
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Abstract
The invention discloses a gauge table, and a wireless meter reading system and method. The gauge table comprises a table head, a sensor, an MCU (machine control unit), a timing unit and a wireless radio-frequency emission unit, wherein the table head is used for metering data; the sensor is used for collecting metered data in real time; the MCU is used for processing the collected metered data and packaging the processed data into a data packet; the timing unit is used for timing first time and second time smaller than the first time respectively; and the wireless radio-frequency emission unit is used for emitting the data packet once at the speed of 300-19,200bps at an interval of the first time, and emitting the data packet once at the speed greater than 19,200bps at an interval of the second time within the first time. By implementation of the technical scheme disclosed by the invention, the gauge table has two emission modes, is suitable for an area with high distribution density of the gauge tables, and also suitable for the position with low distribution density of the gauge tables, or the position with bad signals or a poor installation position. Furthermore, the gauge table only comprises the wireless radio-frequency emission unit, and does not include a receiver. Therefore, the cost and the power consumption are low.
Description
the cross reference of related application
It is the right of priority of October 11, application number in 2011 the Chinese utility model patent application that is 201120384707.9 that the application requires the applying date, and at this quoting in full in the application this patented claim.
Technical field
The present invention relates to communication technical field, relate in particular to a kind of gauging table, wireless kilowatt meter reading-out system and method.
Background technology
Along with the development of Internet of Things, Sensor Network, water meter, gas meter, calorimeter etc. do not have the checking meter of gauging table of externally fed more and more to come into one's own.Micropower (short distance) wireless communication technology will play very important effect in the application of checking meter of these gauging tables.Because gauging table does not have lasting external electric energy supply, checking meter of these gauging tables can only rely on battery or other means (sun power, water/gas stream generating etc.) to obtain electric energy, so, its communication itself must consume extremely low power consumption, just can make the power supply component long-term works such as battery.In addition, because the cost compare of the gauging tables such as water meter own is low, correspondingly require the cost of the kilowatt meter recorder supporting with it also must be lower.
At present, radio meter register has two kinds of modes: a kind of is that handheld terminal reads the reading of gauging table by the mode of two-way communication, another kind is that gauging table is regularly sent to concentrator by reading, then is concentrated and preserved the reading of each gauging table and by alternate manner, be sent to data center by concentrator.First kind of way requires gauging table except with transmitter, also must so just make the cost of gauging table higher with receiver, and power consumption is also very high; The second way is applicable to the area that gauging table distribution density is higher, but for gauging table distribution density lower or poor signal or Bu Jia place, installation site, the copy reading success ratio of this meter reading method is not high.
Summary of the invention
The technical problem to be solved in the present invention is, cost for the above-mentioned gauging table of prior art is high, power consumption is high, and be not suitable for gauging table distribution density inhomogeneous or poor signal or Bu Jia place, installation site, a kind of gauging table is provided, cost is low, low in energy consumption, and be applicable to that gauging table distribution density is inhomogeneous, poor signal, Bu Jia place, installation site.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of gauging table, comprising:
Gauge outfit for continuous data;
Be connected in described gauge outfit, for the sensor of Real-time Collection continuous data;
Be connected in described sensor, for gathered continuous data being processed to and the data after processing are packaged into the MCU of packet;
Built-in or be external in described MCU, for the timing unit that respectively the second time of the very first time and the very first time of being less than is carried out to timing;
Be connected in described MCU, for launching once described packet every the very first time with the speed between 300bps to 19200bps, and within the very first time, every the second time, to be greater than the speed of 19200bps, launch the once wireless radio-frequency emission unit of described packet.
The present invention also constructs a kind of wireless kilowatt meter reading-out system, comprises handheld terminal, concentrator and a plurality of above-described gauging table, wherein,
The speed that described handheld terminal comprises being greater than 19200bps receives the high speed receiving element of described packet;
Described concentrator comprises the low speed receiving element that receives described packet with the speed between 300bps to 19200bps.
In wireless kilowatt meter reading-out system of the present invention, described wireless kilowatt meter reading-out system is also included as expansion communication distance and is connected to the repeater between at least one gauging table and described concentrator.
The present invention also constructs a kind of wireless meter reading method, it is characterized in that, comprising:
Gauge outfit continuous data in each gauging table;
Sensor Real-time Collection continuous data in each gauging table;
MCU in each gauging table processes gathered continuous data and the data after processing is packaged into packet;
Timing unit in each gauging table carries out timing to the second time of the very first time and the very first time of being less than respectively;
Wireless radio-frequency emission unit in each gauging table is launched once described packet every the very first time with the speed between 300bps to 19200bps, and within the very first time, every the second time, to be greater than the speed of 19200bps, launches once described packet;
Handheld terminal receives to be greater than the speed of 19200bps the packet that each gauging table is launched;
Concentrator receives each gauging table institute transmitting data bag with the speed between 300bps to 19200bps.
In wireless meter reading method of the present invention, in comprising the 3rd time of a plurality of very first times, the mean value of a plurality of very first times is T, and within described the 3rd time, each very first time is the random value in (T-Δ T)～(T+ Δ T) scope, wherein, Δ T is the first Preset Time that is less than T.
In wireless meter reading method of the present invention, in the very first time that comprises a plurality of the second times, the mean value of a plurality of the second times is t, and within the described very first time, each second time is the random value in (t-Δ t)～(t+ Δ t) scope, wherein, Δ t is the second Preset Time that is less than t.
Implement technical scheme of the present invention, the packet that wireless radio-frequency emission unit is launched with the speed between 300bps to 19200bps can be received by concentrator, wireless radio-frequency emission unit can be received by handheld terminal with the packet that is greater than the speed of 19200bps and is launched, therefore, this gauging table has two kinds of random timed sending of emission mode, in the high area of gauging table distribution density, can use concentrator to receive the information of gauging table, complete automatic meter-reading; Low or poor signal or Bu Jia position, installation site in gauging table distribution density, can be used handheld terminal to receive the information of gauging table, as a kind of auxiliary group of means of checking meter.And this gauging table only includes wireless radio-frequency emission unit, and does not comprise receiving element, therefore, cost and power consumption are also lower.
In addition, as auxiliary group of means, repeater can be expanded communication distance or solve the communication reliability between 2 that communicate by letter not smooth.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the building-block of logic of gauging table embodiment mono-of the present invention;
Fig. 2 is the working timing figure of gauging table of the present invention;
Fig. 3 is the building-block of logic of wireless kilowatt meter reading-out system preferred embodiment of the present invention;
Fig. 4 is the process flow diagram of wireless meter reading method embodiment mono-of the present invention.
Embodiment
As shown in Figure 1, in the building-block of logic of gauging table embodiment mono-of the present invention, this gauging table comprises gauge outfit 10, sensor 20, MCU30, timing unit 40 and wireless radio-frequency emission unit 50.Timing unit 40 is external in MCU30, and certainly, in other embodiments, timing unit 40 also can be built in MCU30.In this gauging table, gauge outfit 10 is for continuous data; Sensor 20 is for Real-time Collection continuous data; MCU30, for gathered continuous data being processed and the data after processing being packaged into packet, in packed packet, except comprising gathered continuous data, also comprises gauging table ID, gauging table state and serial number etc.; Timing unit 40 is for the second time to the very first time and the very first time of being less than is carried out timing respectively; Wireless radio-frequency emission unit 50 for every the very first time with the described packet once of the speed transmitting between 300bps to 19200bps, and within the very first time, every the second time with the speed transmitting that is greater than 19200bps described packet once.Use the gauging table of this embodiment, the packet that wireless radio-frequency emission unit 50 is launched with the speed between 300bps to 19200bps can be received by concentrator, wireless radio-frequency emission unit can be received by handheld terminal with the packet that is greater than the speed of 19200bps and is launched, therefore, this gauging table has two kinds of random timed sending of emission mode, in the high area of gauging table distribution density, can use concentrator to receive the information of gauging table, complete automatic meter-reading; Low or poor signal or Bu Jia position, installation site in gauging table distribution density, can be used handheld terminal to receive the information of gauging table, as a kind of auxiliary group of means of checking meter.And this gauging table only includes wireless radio-frequency emission unit, and does not comprise receiving element, therefore, cost and power consumption are also lower.
In a preferred embodiment, for prevent adjacent a plurality of gauging tables due to repeatedly simultaneously transmitting data bag cause interference each other repeatedly to occur, can be by adjusting the very first time and/or the second time, make the very first time and/or second time of every minor tick all different, so just can prevent the generation of multiple impacts.In conjunction with Fig. 2, wireless radio-frequency emission unit has three kinds of modules: park mode, low speed emission mode, transmitted at high speed pattern.Suppose that T is the mean value of the very first time at a plurality of intervals in a period of time, Δ T is a random value that is less than T, and like this, the scope of the very first time is (T-Δ T)～(T+ Δ T).Similarly, t is the mean value of second time at a plurality of intervals in the very first time, and Δ t is a random value that is less than t, and like this, the scope of the second time is (t-Δ t)～(t+ Δ t).Because the very first time and/or second time of every minor tick are all different, can greatly reduce so adjacent a plurality of gauging tables probability of transmitting data simultaneously, also just reduced the generation of collision.
Fig. 3 is the building-block of logic of wireless kilowatt meter reading-out system preferred embodiment of the present invention, this wireless kilowatt meter reading-out system comprise a plurality of gauging tables 101,102 ..., 107, concentrator 200, repeater 300 and handheld terminal 400, wherein, the logical organization of each gauging table can, with reference to the logical organization of the gauging table in above-described embodiment, not repeat them here.Concentrator 200 comprises the low speed receiving element that receives described packet with the speed between 300bps to 19200bps, can make like this concentrator 200 can receive the packet that gauging table is launched under low speed emission mode.The speed that handheld terminal 400 comprises being greater than 19200bps receives the high speed receiving element of described packet, can make like this handheld terminal can receive the packet that gauging table is launched under transmitted at high speed pattern.It should be noted that repeater 300 can be connected between at least one gauging table and concentrator 200 communicatedly, for example, is connected between gauging table 103,104,105 and concentrator 200 repeater communication.Repeater 300, for expanding gauging table to the communication coverage between concentrator, certainly, in another embodiment, also can omit repeater.
Fig. 4 is the process flow diagram of wireless meter reading method embodiment mono-of the present invention, and this wireless meter reading method comprises:
S1. the gauge outfit continuous data in each gauging table;
S2. the sensor Real-time Collection continuous data in each gauging table;
S3. the MCU in each gauging table processes gathered continuous data and the data after processing is packaged into packet;
S4. the timing unit in each gauging table carries out timing to the second time of the very first time and the very first time of being less than respectively;
S5. the wireless radio-frequency emission unit in each gauging table is launched once described packet every the very first time with the speed between 300bps to 19200bps, and within the very first time, every the second time, to be greater than the speed of 19200bps, launches once described packet;
S6. handheld terminal receives to be greater than the speed of 19200bps the packet that each gauging table is launched;
S7. concentrator receives each gauging table institute transmitting data bag with the speed between 300bps to 19200bps.
In a preferred embodiment, in comprising the 3rd time of a plurality of very first times, the mean value of a plurality of very first times is T, and within described the 3rd time, each very first time is the random value in (T-Δ T)～(T+ Δ T) scope, wherein, Δ T is the first Preset Time that is less than T.For example, in concrete application, the 3rd time was 24 hours, and the mean value of the very first time is 1 hour, Δ T is 10 minutes, and gauging table be take time interval of the rate emissioning data bag between 300bps to 19200bps random value within the scope of 50 minutes to 70 minutes at every turn.Because the each interlude of gauging table is different, can greatly reduce so adjacent a plurality of gauging tables probability of transmitting data simultaneously, also just reduced the generation of collision.
In a further advantageous embodiment, in the very first time that comprises a plurality of the second times, the mean value of a plurality of the second times is t, and within the described very first time, each second time is the random value in (t-Δ t)～(t+ Δ t) scope, wherein, Δ t is the second Preset Time that is less than t.For example, in a concrete application, the very first time is 1 hour, the mean value of the second time is 5 minutes, Δ t was 10 seconds, and gauging table be take time interval of the rate emissioning data bag that is greater than 19200bps random value within 290 seconds in second to 310 at every turn, because each interlude is different, can greatly reduce so adjacent a plurality of gauging tables probability of transmitting data simultaneously, also just reduce the generation of collision.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (6)
1. a gauging table, is characterized in that, comprising:
Gauge outfit for continuous data;
Be connected in described gauge outfit, for the sensor of Real-time Collection continuous data;
Be connected in described sensor, for gathered continuous data being processed to and the data after processing are packaged into the MCU of packet;
Built-in or be external in described MCU, for the timing unit that respectively the second time of the very first time and the very first time of being less than is carried out to timing;
Be connected in described MCU, for launching once described packet every the very first time with the speed between 300bps to 19200bps, and within the very first time, every the second time, to be greater than the speed of 19200bps, launch the once wireless radio-frequency emission unit of described packet.
2. a wireless kilowatt meter reading-out system, is characterized in that, comprises handheld terminal, concentrator and a plurality of claim 1
Described gauging table, wherein,
The speed that described handheld terminal comprises being greater than 19200bps receives the high speed receiving element of described packet;
Described concentrator comprises the low speed receiving element that receives described packet with the speed between 300bps to 19200bps.
3. wireless kilowatt meter reading-out system according to claim 2, is characterized in that, described wireless kilowatt meter reading-out system is also included as expansion communication distance and is connected to the repeater between at least one gauging table and described concentrator.
4. a wireless meter reading method, is characterized in that, comprising:
Gauge outfit continuous data in each gauging table;
Continuous data described in sensor Real-time Collection in each gauging table;
MCU in each gauging table processes gathered continuous data and the data after processing is packaged into packet;
Timing unit in each gauging table carries out timing to the second time of the very first time and the very first time of being less than respectively; Wireless radio-frequency emission unit in each gauging table is launched once described packet every the very first time with the speed between 300bps to 19200bps, and within the very first time, every the second time, to be greater than the speed of 19200bps, launches once described packet;
Handheld terminal receives to be greater than the speed of 19200bps the packet that each gauging table is launched;
Concentrator receives each gauging table institute transmitting data bag with the speed between 300bps to 19200bps.
5. wireless meter reading method according to claim 4, it is characterized in that, in comprising the 3rd time of a plurality of very first times, the mean value of a plurality of very first times is T, and within described the 3rd time, each very first time is the random value in (T-Δ T)～(T+ Δ T) scope, and wherein, Δ T is the first Preset Time that is less than T.
6. wireless meter reading method according to claim 4, it is characterized in that, in the very first time that comprises a plurality of the second times, the mean value of a plurality of the second times is t, and within the described very first time, each second time is the random value in (t-Δ t)～(t+ Δ t) scope, and wherein, Δ t is the second Preset Time that is less than t.
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| CN201110456471.XA CN103049987B (en) | 2011-10-11 | 2011-12-31 | Gauge table, wireless meter reading system and method |
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| CN201120384707 | 2011-10-11 | ||
| CN201120384707.9 | 2011-10-11 | ||
| CN201110456471.XA CN103049987B (en) | 2011-10-11 | 2011-12-31 | Gauge table, wireless meter reading system and method |
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| CN103049987B true CN103049987B (en) | 2014-09-03 |
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| CN105355025B (en) * | 2015-12-04 | 2018-12-11 | 广东电网有限责任公司电力科学研究院 | A method of electric energy meter is quickly accessed into metering automation system |
| CN108171957B (en) * | 2016-12-07 | 2021-11-30 | 中兴通讯股份有限公司 | Meter reading method, device and system and communication gateway |
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| CN102087132B (en) * | 2009-12-04 | 2012-07-11 | 山东三龙智能技术有限公司 | Wireless communication processing method for water meter |
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Inventor after: Zhang Li Inventor after: Lei Zhaojun Inventor after: Cao Hui Inventor after: Pi Jun Inventor before: Lei Zhaojun Inventor before: Cao Hui Inventor before: Pi Jun |
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Address after: 518000 R & D building 901, block a, building 7, phase I, Wanke Yuncheng phase I, Xili community, Xili street, Nanshan District, Shenzhen City, Guangdong Province (9 / F, whole floor) Patentee after: SHENZHEN HAC TELECOM TECHNOLOGY Co.,Ltd. Address before: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple Tairan nine road Haisong building A block 19 Building 3 District Patentee before: SHENZHEN HAC TELECOM TECHNOLOGY Co.,Ltd. |