WO2018176701A1 - Intelligent module and internet of things system - Google Patents

Abstract

Disclosed are an intelligent module and an Internet of Things system. The Internet of Things system comprises a server, a terminal and an intelligent module, wherein the intelligent module comprises a battery (100), a communication chip (200), a signal transceiving unit (10), a switch circuit (20), a buzzer circuit (30) and an LED indication circuit (40); a power supply pin of the communication chip (200) is connected to the battery (100); a signal pin of the communication chip (200) is connected to the signal transceiving unit (10); an enable pin of the communication chip (200) is connected to the switch circuit (20); a first drive pin of the communication chip (200) is connected to the buzzer circuit (30); and a second drive pin of the communication chip (200) is connected to the LED indication circuit (40). The intelligent module can make an article corresponding thereto conveniently access the Internet of Things system, and can also make the article conveniently access the Internet of Things and push dynamic information, and has the characteristics of convenient identification and strong adaptability.

Description

 Smart modules and IoT systems

Technical field

The present invention relates to the field of Internet of Things technologies, and in particular, to an intelligent module and an Internet of Things system.

Background technique

In the prior art, an item needs to realize information transmission, and generally adopts an electronic tag (RFID) or a two-dimensional code or a bar code. In a normal case, scanning under a close distance condition is required, and it is difficult to realize long-distance information transmission. In addition, if the information to be transmitted needs to be modified, the barcode or QR code needs to be replaced, and the electronic label needs to use a dedicated device, which is very inconvenient to operate.

The invention provides an intelligent module and an Internet of Things system, and the above problems can be well solved by the interaction of the intelligent module with the terminal and the server.

Summary of the invention

The main object of the present invention is to provide an intelligent module aimed at improving the versatility of the intelligent module.

To achieve the above objective, the intelligent module provided by the present invention comprises a battery, a communication chip, a signal transceiving unit, a switch circuit, a buzzer circuit and an LED indicating circuit; the power pin of the communication chip is connected to the battery, and the communication chip The signal pin is connected to the signal transceiver unit, the enable pin of the communication chip is connected to the switch circuit, and the first drive pin of the communication chip is connected to the buzzer circuit, and the communication chip is The two driving legs are connected to the LED indicating circuit.

Preferably, the communication chip is a Bluetooth BLE4.0 chip.

Preferably, the signal transceiving unit includes a balance matching circuit and a communication interface, and the first signal end of the balance matching circuit is connected to the communication interface, and the second signal end and the third signal end of the balance matching circuit are both The communication chip is connected.

Preferably, the balance matching circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a seventh capacitor, a first inductor, a second inductor, a third inductor, and a fourth inductor; The first end of the first capacitor is a second signal end of the balance matching circuit, and the second end of the first capacitor, the first end of the second capacitor, and the first end of the first inductor are mutually The second end of the second capacitor is grounded, and the second end of the first inductor, the first end of the second inductor, and the second end of the seventh capacitor are interconnected, and the seventh capacitor The first end of the fourth inductor and the second end of the fifth capacitor are interconnected, and the first end of the fifth capacitor is a third signal end of the balance matching circuit, a second end of the second inductor, a first end of the third inductor, and a first end of the third capacitor are interconnected, a second end of the third capacitor is grounded, and a second end of the third inductor Connected to the first end of the fourth capacitor, the connection node is the first signal end of the balance matching circuit, and the fourth capacitor The second terminal is grounded.

Preferably, the switch circuit includes a switch and a sixth capacitor, and the input end of the switch and the first end of the sixth capacitor are both connected to the communication chip, and the output end of the switch and the sixth capacitor The second ends are grounded.

Preferably, the buzzer circuit includes a buzzer and a first resistor, a first end of the first resistor is connected to the communication chip, and a second end of the first resistor is opposite to the buzzer The positive pole is connected, and the negative pole of the buzzer is grounded.

Preferably, the LED indicating circuit comprises an LED lamp and a second resistor, an anode of the LED lamp is connected to the communication chip, and a cathode of the LED lamp is connected to a first end of the second resistor, the first The second end of the two resistors is grounded.

Preferably, the smart module further includes a housing, and the communication chip, the signal transceiving unit, the switch circuit, the buzzer circuit and the LED indicating circuit are all disposed on the inner side of the housing. The housing is provided with a through hole for allowing light emitted by the LED indicating circuit and sound emitted by the buzzer circuit to pass out.

Preferably, the housing is provided with a battery compartment for battery installation, a mounting opening for the battery to enter and exit the battery compartment, and a battery cover adapted to the mounting opening cover, the battery cover and the battery cover The housing is connected by a snap snap.

The invention also provides an Internet of Things system, comprising a server, a terminal and an intelligent module as described above, the server is connected to the terminal, and the terminal is connected to the intelligent module; wherein the intelligent module comprises a battery and a communication chip , signal transceiver unit, switch circuit, buzzer circuit and LED indicating circuit; the power supply pin of the communication chip is connected with the battery, the signal pin of the communication chip is connected with the signal transceiver unit, the enable pin of the communication chip is connected with the switch circuit, and the communication chip The first driving pin is connected to the buzzer circuit, and the second driving leg of the communication chip is connected to the LED indicating circuit.

Preferably, the communication chip is a Bluetooth BLE4.0 chip.

Preferably, the signal transceiving unit includes a balance matching circuit and a communication interface, and the first signal end of the balance matching circuit is connected to the communication interface, and the second signal end and the third signal end of the balance matching circuit are both The communication chip is connected.

Preferably, the balance matching circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a seventh capacitor, a first inductor, a second inductor, a third inductor, and a fourth inductor; The first end of the first capacitor is a second signal end of the balance matching circuit, the second end of the first capacitor, the first end of the second capacitor, and the first end of the first inductor Interconnecting, the second end of the second capacitor is grounded, the second end of the first inductor, the first end of the second inductor, and the second end of the seventh capacitor are interconnected, the seventh a first end of the capacitor, a first end of the fourth inductor, and a second end of the fifth capacitor are interconnected, and a first end of the fifth capacitor is a third signal end of the balance matching circuit, The second end of the second inductor, the first end of the third inductor, and the first end of the third capacitor are interconnected, the second end of the third capacitor is grounded, and the second end of the third inductor The end is connected to the first end of the fourth capacitor, and the connection node is a first signal end of the balance matching circuit, and the fourth The second grounded.

Preferably, the switch circuit includes a switch and a sixth capacitor, and the input end of the switch and the first end of the sixth capacitor are both connected to the communication chip, and the output end of the switch and the sixth capacitor The second ends are grounded.

Preferably, the buzzer circuit includes a buzzer and a first resistor, a first end of the first resistor is connected to the communication chip, and a second end of the first resistor is opposite to the buzzer The positive pole is connected, and the negative pole of the buzzer is grounded.

Preferably, the LED indicating circuit comprises an LED lamp and a second resistor, an anode of the LED lamp is connected to the communication chip, and a cathode of the LED lamp is connected to a first end of the second resistor, the first The second end of the two resistors is grounded.

Preferably, the smart module further includes a housing, and the communication chip, the signal transceiving unit, the switch circuit, the buzzer circuit and the LED indicating circuit are all disposed on the inner side of the housing. The housing is provided with a through hole for allowing light emitted by the LED indicating circuit and sound emitted by the buzzer circuit to pass out.

Preferably, the housing is provided with a battery compartment for battery installation, a mounting opening for the battery to enter and exit the battery compartment, and a battery cover adapted to the mounting opening cover, the battery cover and The housing is connected by a snap snap.

The technical solution of the present invention transmits the information stored by the terminal to the terminal by using the communication chip (the chip is balanced by the matching circuit and the antenna), and after the two are authenticated and matched by the information, the terminal can conveniently modify the information stored by the communication chip to realize the terminal and the terminal. The interconnection of the intelligent modules enables the items corresponding to the intelligent modules to be conveniently connected to the Internet of Things system. Through the links of intelligent modules, terminals and servers in the Internet of Things system, it is possible to facilitate the convenient access of items to the Internet of Things and the promotion of dynamic information. (Can this sentence be deleted, or modified as appropriate to echo the beneficial effects above.)

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a schematic diagram of functional modules of an embodiment of an Internet of Things system of the present invention;

2 is a schematic diagram of functional modules of a first embodiment of a smart module according to the present invention;

3 is a schematic structural diagram of a circuit of a first embodiment of a smart module according to the present invention;

FIG. 4 is a schematic structural diagram of a second embodiment of a smart module according to the present invention.

Description of the reference numerals:

Label	Name	Label	Name	Label	Name
10	Signal transceiver unit	C1	First capacitor	L1	First inductance
20	Switch circuit	C2	Second capacitor	L2	Second inductance
30	Buzzer circuit	C3	Third capacitor	L3	Third inductance
40	LED indicating circuit	C4	Fourth capacitor	L4	Fourth inductance
11	Balance matching circuit	C5	Fifth capacitor	R1	First resistance
100	Battery	C6	Sixth capacitor	R2	Second resistance
200	Communication chip	RD	LED light	BZ	Buzzer
K1	Switch	RF	Communication Interface	52	battery cover
53	Active connection	50	Housing	51	Through hole

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It is to be noted that the descriptions of "first", "second" and the like in the present invention are only for the purpose of description, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

As shown in FIG. 1 , an Internet of Things system includes an intelligent module, a terminal, and a server. The server is connected to one or more terminals, and each terminal is connected to one or more intelligent modules. In the working process of the Internet of Things system, each intelligent module can exchange information with the corresponding terminal, and each terminal can exchange information with the server. Thus, the interconnection between the server, the terminal, and the intelligent module is realized.

The terminal may be a smart device such as a mobile phone or a tablet computer, and generally wirelessly connects with the intelligent module, and can communicate with the intelligent module by using technologies such as Bluetooth and ZigBee.

Here, the Internet of Things system is mainly used to implement the following three functions:

(1) Identification function

In this example, it is assumed that the identified object is a perfume. Then through the following steps, the recognition function of the perfume can be realized:

The first step: binding the perfume to be identified to the first intelligent module.

Step 2: The first terminal acquires the ID number of the first smart module, and sends the ID number and the perfume feature information corresponding to the ID number to the server.

Step 3: The second terminal acquires the ID number of the first intelligent module, and sends an information query request to the server.

Step 4: The server searches for the ID number sent by the second terminal, and sends the corresponding perfume feature information to the second terminal.

Here, the first terminal is owned by the perfume manufacturer or the seller, and the second terminal is owned by the consumer. The characteristic information of the perfume may include the perfume brand, the manufacturer, the place of production, the production time, the shelf life, and the like.

It is worth mentioning that in this process, if the user terminal cannot read the characteristic information of the perfume, it means that the perfume purchased by the user is a counterfeit product.

(2) Search function

In this case, assume that the object being looked for is a dog. Then, through the following steps, the positioning function of the dog can be realized:

The first step is to bind the dog to be found to the second intelligent module.

Step 2: The third terminal sends a loss report to the server. The missing report includes the ID number of the second intelligent module.

Step 3: The server sends a search notice to other terminals. The object-seeking notification includes the ID number of the second intelligent module.

The fourth step: each terminal acquires the ID number of all intelligent terminals in a certain range, and when the fourth terminal finds the ID number of the second intelligent module, it sends its own location information to the server.

Step 5: The server sends the location information of the fourth terminal to the third terminal.

Here, a certain range generally refers to a range of 50 meters. When the communication protocol between the intelligent module and the terminal is different, the range of the terminal search intelligent module will also be different.

(3) Information push function

In this example, it is assumed that the push information is shop information. The following steps can be used to implement the information push function:

Step 1: The fifth terminal acquires the ID number of the third intelligent module, and sends the ID number and the store information corresponding to the ID number to the server.

Step 2: The sixth terminal acquires the ID number of the third intelligent module, and sends an information acquisition request to the server.

The third step: the server information corresponding to the server ID and the ID number of the third smart module is sent to the sixth terminal.

According to the above content, in the above Internet of Things system, the function of the intelligent module is to receive the connection request of the terminal, and after establishing a connection with the terminal, send the ID number of the terminal to the terminal.

Based on the above, the smart module proposed by the present invention will be described in detail below with reference to FIGS. 2 to 4.

Referring to FIG. 2 , in an embodiment, the smart module includes a battery 100 , a communication chip 200 , a signal transceiving unit 10 , a switch circuit 20 , a buzzer circuit 30 , and an LED indicating circuit 40 . The power pin of the communication chip 200 and the battery 100 . The signal pin of the communication chip 200 is connected to the signal transceiving unit 10, the enable pin of the communication chip 200 is connected to the switch circuit 20, the first driving leg of the communication chip 200 is connected to the buzzer circuit 30, and the second of the communication chip 200 is connected. The drive pin is coupled to the LED indicating circuit 40.

In this embodiment, the battery 100 is used to supply power to the communication chip 200. The switch circuit 20 is used to control whether the smart module starts working. The signal transceiving unit 10 is configured to convert the signal carrying the smart module ID number sent by the communication chip 200 to match the terminal, or convert the connection request signal sent by the terminal to the intelligent module. match. The LED indicating circuit 40 is configured to indicate that the smart module works normally. The buzzer circuit 30 is configured to emit a sound when the smart module receives the connection request signal sent by the terminal.

The working process of this intelligent module is:

First, the switching circuit 20 controls the communication chip 200 to be powered on. At the same time, the LED indicating circuit 40 operates, and the flag intelligent module is in a normal working state.

Then, the signal transceiving unit 10 processes the connection request signal transmitted by the terminal and transmits it to the communication chip 200. At the same time, the buzzer circuit 30 operates, and the sign terminal is successfully connected to the smart module.

Finally, the communication chip 200 transmits the ID number of the smart module, and the signal transceiving unit 10 processes the signal carrying the smart module ID number and transmits it to the terminal.

Here, the communication chip 200 is only required to implement a wireless communication function, and the specific type thereof is not limited herein. In order to reduce the power consumption of the smart module, the communication chip 200 selects a Bluetooth BLE4.0 chip, such as CC2540, BCM20730, CSR1010 and the like. It can be understood that when the power consumption of the smart module is high, a charging circuit (not shown) can be additionally added to charge the battery 100 to extend the service life of the smart module.

Preferably, referring to FIG. 3, the signal transceiving unit 10 includes a balance matching circuit 11 and a communication interface RF. The first signal end of the balance matching circuit 11 is connected to the communication interface RF, and the second signal end of the balance matching circuit 11 and the The three signal terminals are all connected to the communication chip 200. Specifically, the balance matching circuit 11 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a seventh capacitor C7, a first inductor L1, a second inductor L2, and a third The first end of the first capacitor C1 is a second signal end of the balance matching circuit, and is connected to the first signal pin S1 of the communication chip 200; the second end of the first capacitor C1 and the second capacitor The first end of C2 is interconnected with the first end of the first inductor L1, the second end of the second capacitor C2 is grounded, the second end of the first inductor L1, the first end of the second inductor L2, and the seventh capacitor C7 The second end is interconnected, the first end of the seventh capacitor C7, the first end of the fourth inductor L4, and the second end of the fifth capacitor C5 are interconnected, and the first end of the fifth capacitor C5 is the balance matching circuit 11 The third signal terminal is connected to the second signal pin S2 of the communication chip 200; the second end of the second inductor L2, the first end of the third inductor L3 and the first end of the third capacitor C3 are interconnected, and the third capacitor C3 The second end is grounded, the second end of the third inductor L3 is connected to the first end of the fourth capacitor C4, and the connection node is the first signal of the balance matching circuit 11. , Second terminal of the fourth capacitor C4.

In this embodiment, since the communication chip 200 is a Bluetooth BLE4.0 chip, the frequency of the received signal is about 2.4 GHz. Therefore, here, the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth The capacitor C4, the fifth capacitor C5, the seventh capacitor C7, the first inductor L1, the second inductor L2, the third inductor L3, and the fourth inductor L4 constitute a filter and a resonant circuit. The clutter (LC circuit function) whose filtering frequency is not in the range of 2.4 GHz improves the communication quality between the terminal and the intelligent module.

Preferably, the switch circuit 20 includes a switch K1 and a sixth capacitor C6. The input end of the switch K1 is connected to the enable pin CS of the communication chip 200, and the first end of the sixth capacitor C6 is connected to the buffer pin CE of the communication chip 200. The output of the switch K1 and the second end of the sixth capacitor C6 are both grounded.

Specifically, when the switch K1 is switched from the off state to the closed state, the sixth capacitor C6 is discharged, the enable pin CS of the communication chip 200 receives the enable signal, and the communication chip 200 is turned on; when the switch K1 is switched from the closed state to the off state In the on state, the sixth capacitor C6 is charged, and the enable pin CS of the communication chip 200 does not receive the enable signal, and the communication chip 200 does not operate.

Preferably, the buzzer circuit 30 includes a buzzer BZ and a first resistor R1. The first end of the first resistor R1 is connected to the first driving pin D1 of the communication chip, and the second end of the first resistor R1 is connected with the bee. The positive pole of the sounder BZ is connected, and the negative pole of the buzzer BZ is grounded.

Specifically, when the communication chip 200 receives the connection request signal sent by the terminal, it outputs a high level signal at its first driving pin D1 to drive the buzzer BZ to sound.

Preferably, the LED indicating circuit 40 includes an LED lamp RD and a second resistor R2. The anode of the LED lamp RD is connected to the communication chip 200. The cathode of the LED lamp RD is connected to the first end of the second resistor R2, and the second resistor R2 is connected. The second end is grounded.

Specifically, when the communication chip 200 is turned on or transmits its own ID number to the terminal, a high level signal is outputted at its second driving pin D2 to drive the LED lamp RD to emit light.

It is worth mentioning that a power connector (not shown) can also be provided in the smart module. In this way, before the intelligent module is shipped from the factory, during the performance test, the power connector can be used to supply power, thereby saving power.

Further, referring to FIG. 4, the smart module further includes a housing 50. The communication chip 200, the signal transceiving unit 10, the switch circuit 20, the buzzer circuit 30, and the LED indicating circuit 40 are all disposed inside the housing 50, and the housing 50 is provided. A through hole 51 is provided for guiding the optical signal emitted by the LED lamp RD in the casing 50 to the outside of the casing 50, and the acoustic signal emitted by the buzzer BZ in the casing 50 is led to the casing 50. outer.

Further, the housing 50 is further provided with a battery compartment (not shown) for mounting the battery 100, a mounting opening (not shown) for the battery 100 to enter and exit the battery compartment, and a battery cover 52 adapted to the mounting opening cover. The battery cover 52 is coupled to the housing 50 by a snap snap. Thus, when the battery 100 is exhausted, the user can replace the new battery 100 to use the smart module again. The movable connecting portion 53 is used for connecting the housing 50 and the switch K1, so that the user can trigger the operation of the intelligent module.

It can be understood that the addition of the housing 50 can facilitate the carrying of the object to be identified, the object to be searched, and the like. The shape of the housing 50 can be designed according to the user's preference, and is not limited herein. The material of the housing 50 may also be various, as long as the signal of the communication interface RF is not hindered, and preferably, the material of the housing 50 is plastic.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.

Claims (18)

1. An intelligent module, configured to perform information interaction with a terminal, wherein the smart module comprises a battery, a communication chip, a signal transceiver unit, a switch circuit, a buzzer circuit, and an LED indicating circuit;

   a power pin of the communication chip is connected to the battery, a signal pin of the communication chip is connected to the signal transceiver unit, and an enable pin of the communication chip is connected to the switch circuit, and the communication chip is first. A driving pin is connected to the buzzer circuit, and a second driving leg of the communication chip is connected to the LED indicating circuit.
2. The smart module of claim 1 wherein said communication chip is a Bluetooth BLE 4.0 chip.
3. The intelligent module according to claim 1, wherein the signal transceiving unit comprises a balance matching circuit and a communication interface, and a first signal end of the balance matching circuit is connected to the communication interface, and the balance matching circuit The second signal end and the third signal end are both connected to the communication chip.
4. The smart module according to claim 3, wherein the balance matching circuit comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a seventh capacitor, a first inductor, and a second Inductance, third inductance and fourth inductance;

   The first end of the first capacitor is a second signal end of the balance matching circuit, the second end of the first capacitor, the first end of the second capacitor, and the first end of the first inductor Interconnecting, the second end of the second capacitor is grounded, the second end of the first inductor, the first end of the second inductor, and the second end of the seventh capacitor are interconnected, the seventh a first end of the capacitor, a first end of the fourth inductor, and a second end of the fifth capacitor are interconnected, and a first end of the fifth capacitor is a third signal end of the balance matching circuit, The second end of the second inductor, the first end of the third inductor, and the first end of the third capacitor are interconnected, the second end of the third capacitor is grounded, and the second end of the third inductor The terminal is connected to the first end of the fourth capacitor, the connection node is the first signal end of the balance matching circuit, and the second end of the fourth capacitor is grounded.
5. The intelligent module of claim 1 , wherein the switch circuit comprises a switch and a sixth capacitor, wherein the input end of the switch and the first end of the sixth capacitor are connected to the communication chip. The output end of the switch and the second end of the sixth capacitor are both grounded.
6. The intelligent module according to claim 1, wherein the buzzer circuit comprises a buzzer and a first resistor, and the first end of the first resistor is connected to the communication chip, the first resistor The second end is connected to the positive pole of the buzzer, and the negative pole of the buzzer is grounded.
7. The intelligent module according to claim 1, wherein the LED indicating circuit comprises an LED lamp and a second resistor, an anode of the LED lamp is connected to the communication chip, a cathode of the LED lamp and the first The first end of the two resistors is connected, and the second end of the second resistor is grounded.
8. The intelligent module according to claim 1, wherein the intelligent module further comprises a housing, the communication chip, the signal transceiving unit, the switch circuit, the buzzer circuit and the LED indication The circuit is disposed on the inner side of the casing, and the casing is provided with a through hole for allowing light emitted by the LED indicating circuit and sound emitted by the buzzer circuit to pass out.
9. The intelligent module according to claim 8, wherein said housing is provided with a battery compartment for battery installation, a mounting opening for said battery to enter and exit said battery compartment, and adapted to said mounting opening cover The battery cover is connected to the housing by a rotary snap.
10. An Internet of Things system, comprising: a server, a terminal, and the intelligent module according to claim 1, wherein the server is connected to the terminal, and the terminal is connected to the smart module.
11. The Internet of Things system of claim 10, wherein the communication chip is a Bluetooth BLE 4.0 chip.
12. The IoT system according to claim 10, wherein the signal transceiving unit comprises a balance matching circuit and a communication interface, and the first signal end of the balance matching circuit is connected to the communication interface, and the balance matching circuit The second signal end and the third signal end are both connected to the communication chip.
13. The IoT system according to claim 12, wherein the balance matching circuit comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a seventh capacitor, a first inductor, and a first Two inductors, a third inductor and a fourth inductor;

    The first end of the first capacitor is a second signal end of the balance matching circuit, the second end of the first capacitor, the first end of the second capacitor, and the first end of the first inductor Interconnecting, the second end of the second capacitor is grounded, the second end of the first inductor, the first end of the second inductor, and the second end of the seventh capacitor are interconnected, the seventh a first end of the capacitor, a first end of the fourth inductor, and a second end of the fifth capacitor are interconnected, and a first end of the fifth capacitor is a third signal end of the balance matching circuit, The second end of the second inductor, the first end of the third inductor, and the first end of the third capacitor are interconnected, the second end of the third capacitor is grounded, and the second end of the third inductor The terminal is connected to the first end of the fourth capacitor, the connection node is the first signal end of the balance matching circuit, and the second end of the fourth capacitor is grounded.
14. The IoT system of claim 10, wherein the switch circuit comprises a switch and a sixth capacitor, wherein the input end of the switch and the first end of the sixth capacitor are connected to the communication chip. The output end of the switch and the second end of the sixth capacitor are both grounded.
15. The Internet of Things system of claim 10, wherein the buzzer circuit comprises a buzzer and a first resistor, and the first end of the first resistor is connected to the communication chip, the first A second end of the resistor is coupled to the positive pole of the buzzer, and a negative pole of the buzzer is coupled to ground.
16. The Internet of Things system according to claim 10, wherein said LED indicating circuit comprises an LED lamp and a second resistor, said anode of said LED lamp being connected to said communication chip, said cathode of said LED lamp being said The first end of the second resistor is connected, and the second end of the second resistor is grounded.
17. The Internet of Things system according to claim 10, wherein the intelligent module further comprises a housing, the communication chip, the signal transceiving unit, the switch circuit, the buzzer circuit and the LED The indicating circuit is disposed on the inner side of the casing, and the casing is provided with a through hole for allowing the light emitted by the LED indicating circuit and the sound emitted by the buzzer circuit to pass out.
18. The Internet of Things system according to claim 17, wherein said housing is provided with a battery compartment for battery installation, a mounting opening for said battery to enter and exit said battery compartment, and said mounting opening An adapted battery cover is attached, the battery cover being coupled to the housing by a snap snap.