Gas leakage alarm remote transmission system

Abstract

A gas leakage alarm remote transmission system comprises a power supply module, a communication module, a storage module, a key module, a communication module and a control module. The power supply module is connected with the communication module, the storage module, the key module, the communication module and the control module; and the control module is also connected with the communication module, the storage module, the key module and the communication module. The problem that existing gas alarm equipment only has a single alarm function is solved, data collected by the gas alarm is read through the communication module and uploaded to the system through the communication module, the system can send a corresponding processing mode to the gas leakage alarm device, a gas company can remotely close a valve, and gas use safety is improved.

Description

Technical Field

[0001] The utility model belongs to the field of gas meter alarms, and in particular relates to a gas leakage alarm remote transmission system. Background Art

[0002] For gas companies and gas users, a safe gas environment is the common pursuit of both parties. At present, most commercial users will install gas alarms to detect the presence of combustible gas when a gas leak occurs, thereby issuing a "beeping" alarm sound and a flashing red alarm light. However, if the user is not on site, such an alarm is meaningless. Therefore, we need to enable the alarm to have the function of uploading gas leaks so that when a gas leak occurs, the gas company can remotely close the valve when no one is around, thereby improving the safety of gas use. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a gas leak alarm remote transmission system to solve the serious harm caused by the untimely treatment of gas leaks in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A gas leak alarm remote transmission system comprises a power module, a communication module, a storage module, a key module, a communication module and a control module; the power module is connected with the communication module, the storage module, the key module, the communication module and the control module; the control module is also connected with the communication module, the storage module, the key module and the communication module.

[0006] Preferably, the control module includes a chip U3, a single-row pin P3, a crystal oscillator X1, a capacitor C6, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11 and a capacitor C12;

[0007] Pin 1 of the single-row needle P3 is connected to VCC, pin 2 of the single-row needle P3 is grounded, pin 3 of the single-row needle P3 is connected to pin 1 of chip U3, pin 4 of the single-row needle P3 is connected to pin 64 of chip U3, and pin 5 of the single-row needle P5 is connected to pin 63 of chip U3;

[0008] Pin 34 of the chip U3 is connected to one end of capacitor C6 and to VCC, and pin 33 of the chip U3 is connected to the other end of capacitor C6 and to ground; pin 48 of the chip U3 is connected to one end of capacitor C8 and one end of crystal oscillator X1, pin 49 of the chip U3 is connected to one end of capacitor C9 and the other end of crystal oscillator X1, and the other end of capacitor C8 is connected to the other end of capacitor C9 and to ground; pin 50 of the chip U3 is connected to one end of capacitor C10, and the other end of capacitor C10 is grounded; pin 52 and pin 54 of the chip U3 are connected to one end of capacitor C11 and one end of capacitor C12 and to VCC, and the other end of capacitor C11 and the other end of capacitor C12 are connected to ground; pin 51 and pin 53 of the chip U3 are both grounded.

[0009] Preferably, the button module includes a button J5, a resistor R11 and a capacitor C7;

[0010] Pin 1 of the button J5 is connected to one end of the resistor R11 and one end of the capacitor C7 and connected to pin 55 of the chip U3. The other end of the resistor R11 is connected to VCC. Pin 2 of the button J5 and the other end of the capacitor C7 are grounded respectively.

[0011] Preferably, the storage module includes a storage chip U11, a capacitor C25, a resistor R34 and a resistor R35;

[0012] Pin 1, pin 2, pin 3 and pin 4 of the storage chip U11 are all connected to one end of capacitor C25 and grounded, the other end of capacitor C25 is connected to one end of resistor R34, one end of resistor R35, pin 8 of U11 and pin 15 of chip U3 and connected to VCC; the other end of resistor R34, pin 6 of chip U11 and pin 16 of chip U3 are connected together; pin 5 of U11, the other end of resistor R35 and pin 17 of chip U3 are connected together; pin 7 of U11 is grounded.

[0013] Preferably, the communication module includes LDO U6, SIM card U7, chip U8, capacitor C19, capacitor C20, capacitor C21, capacitor C22, capacitor C32, resistor R25, resistor R26, LED lamp D6 and antenna J1;

[0014] One end of the capacitor C20, one end of the capacitor C21, and one end of the capacitor C22 are connected to the pins 42 and 43 of the chip U8 and connected to the pin 4 of U6, and the other ends of the capacitor C20, the other ends of the capacitor C21, and the other ends of the capacitor C22 are connected to the ground; Pin 1 of the antenna J1 is connected to the pin 35 of the chip U8, and Pin 2 of the antenna J1 is connected to one end of the resistor R26 and grounded; the positive electrode of the LED lamp D6 is connected to the pin 25 of the chip U8, and the negative electrode of the LED lamp D6 is connected to the other end of the resistor R26; one end of the capacitor C19 is connected to the pin 24 of the chip U8, and the other end of the capacitor C19 is grounded; one end of the resistor R25 is connected to the pin 7 of the chip U8, and the other end of R25 is grounded; one end of the capacitor C32 is connected to the pin 8 of the SIM card U7 and connected to the pin 14 of the chip U8, and the other end of the capacitor C32 is connected to the pin 1 of the chip U8 and grounded; Pin 1 of the LDO U6 is grounded, and the LDO Pin 2 of U6 is connected to pin 4 of chip U3; pin 3, pin 6 and pin 7 of the chip U7 are respectively connected to pin 11, 13 and 12 of chip U8; pin 17 of the chip U8 is connected to pin 6 of U3, pin 18 of the chip U8 is connected to pin 5 of U3, and pin 10, pin 27, pin 34, pin 36, pin 37, pin 40, pin 41, pin 45, pin 46, pin 47, pin 48, pin 70, pin 71, pin 72, pin 73, pin 88, pin 89, pin 90, pin 91, pin 92, pin 93 and pin 94 of the chip U8 are all grounded.

[0015] Preferably, the power module includes a power socket P1, a diode D1, a diode D4, an LDO U2, a capacitor E1, a capacitor E2, a capacitor C4, a capacitor C5, a resistor R4, a resistor R5, a resistor R6 and a resistor R45;

[0016] Pin 1 of P1 is connected to the positive electrode of diode D1 and one end of resistor R4, pin 2 of P1 is grounded, the other end of resistor R4 is connected to the positive electrode of diode D4 and one end of resistor R45, the other end of resistor R45 is connected to pin 18 of chip U3, and the negative electrode of diode D4 is grounded; the negative electrode of diode D1 is connected to the positive electrode of capacitor E1, one end of resistor R5 and pin 2 of LDO U2 and connected to pin 3 of LDO U6, the negative electrode of capacitor E1, the other end of resistor R5, the positive electrode of capacitor E2 and one end of resistor R6 are connected, and the negative electrode of capacitor E2 and the other end of resistor R6 are connected and grounded; pin 3 of LDO U2 is connected to one end of capacitor C4 and at the same time connected to one end of capacitor C5 to VCC, and pin 3 of LDO U2 is connected to pin 8 of U11, the other end of R11 and pin 34, pin 52 and pin 54 of U3; pin 1 of LDO U2, the other end of capacitor C4 and the other end of capacitor C5 are connected and grounded.

[0017] Preferably, the communication module includes capacitor C29, capacitor C36, capacitor C34, capacitor C37, capacitor C66, resistor R27, resistor R57, resistor R58, resistor R66, resistor R67, transistor Q10, chip U14 and socket P6;

[0018] Pin 1 of the chip U14 is connected to one end of capacitor C34, and pin 3 of U14 is connected to the other end of capacitor C34; pin 2 of chip U14 is connected to one end of capacitor C29, and the other end of capacitor C29 is grounded; pin 4 of chip U14 is connected to one end of capacitor C36, and pin 5 of U14 is connected to the other end of capacitor C36; pin 6 of chip U14 is connected to one end of capacitor C37, and the other end of capacitor C37 is grounded; pin 11 of chip U14 is connected to one end of resistor R66, and the other end of resistor R66 is connected to pin 38 of chip U3; pin 12 of chip U14 is connected to one end of resistor R67, and the other end of resistor R67 is connected to chip Pin 37 of U3 is connected; Pin 13 of chip U14 is connected to one end of resistor R58, and the other end of resistor R58 is connected to pin 2 of socket P6; Pin 14 of chip U14 is connected to one end of resistor R57, and the other end of resistor R57 is connected to pin 1 of socket P6; Pin 15 of chip U14 is connected to the other end of capacitor C66 and grounded, Pin 16 of chip U14 and one end of capacitor C66 are connected to pin 3 of transistor Q10, pin 1 of transistor Q10 is connected to one end of resistor R27, and the other end of resistor R27 is connected to pin 39 of chip U3, and pin 2 of transistor Q10 is connected to pin 3 of U2 and connected to VCC.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects: it solves the single function of the existing gas alarm equipment, which can only provide an alarm. The data collected by the gas alarm is read by the communication module and uploaded to the system by the communication module. The system can send the corresponding processing method to the gas leak alarm device, so that the gas company can close the valve remotely, thereby improving the safety of gas use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments.

[0021] Figure 1 It is a module diagram of the utility model;

[0022] Figure 2 for Figure 1 Circuit of the control module;

[0023] Figure 3 for Figure 1 The circuit of the middle button module;

[0024] Figure 4 for Figure 1A circuit of a storage module;

[0025] Figure 5 for Figure 1 The circuit of the communication module;

[0026] Figure 6 for Figure 1 The circuit of the power module;

[0027] Figure 7 for Figure 1 The circuit of the communication module. DETAILED DESCRIPTION

[0028] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.

[0029] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0030] The utility model provides a gas leakage alarm remote transmission system, including a power module, a communication module, a storage module, a key module, a communication module and a control module; the power module is connected with the communication module, the storage module, the key module, the communication module and the control module; the control module is also connected with the communication module, the storage module, the key module and the communication module;

[0031] Its functions are as follows: the power module converts external electricity into a power supply voltage suitable for the product to work; the communication module mainly reads the alarm information of the gas alarm through 232 communication; the storage module can record the gas alarm information collected by the communication module in real time; the communication module can upload the alarm information to the platform; the button module can clear the alarm information of the remote transmission device; the control module is mainly used to control several other modules so that the equipment can work normally.

[0032] See also Figure 2 The control module in the utility model adopts chip U3 (FM33LGXX6-N) and its peripheral circuit, and the peripheral circuit includes single-row pin P3, crystal oscillator X1, capacitor C6, capacitor C8, capacitor C9, capacitor C10, capacitor C11 and capacitor C12;

[0033] Pin 1 of single-row pin P3 is connected to VCC, pin 2 of single-row pin P3 is grounded, pin 3 of single-row pin P3 is connected to pin 1 of chip U3, pin 4 of single-row pin P3 is connected to pin 64 of chip U3, and pin 5 of single-row pin P5 is connected to pin 63 of chip U3; pin 34 of chip U3 is connected to one end of capacitor C6 and connected to VCC, pin 33 of chip U3 is connected to the other end of capacitor C6 and connected to ground; pin 48 of chip U3 is connected to one end of capacitor C8 and one end of crystal oscillator X1. The pin 49 of the chip U3 is connected to one end of the capacitor C9 and the other end of the crystal oscillator X1, and the other end of the capacitor C8 is connected to the other end of the capacitor C9 and grounded; the pin 50 of the chip U3 is connected to one end of the capacitor C10, and the other end of the capacitor C10 is grounded; the pin 52 and the pin 54 of the chip U3 are connected to one end of the capacitor C11 and one end of the capacitor C12 and connected to VCC, and the other end of the capacitor C11 and the other end of the capacitor C12 are connected and grounded; the pin 51 and the pin 53 of the chip U3 are both grounded;

[0034] Its functions are as follows: U3 is the main control module of the gas alarm, capacitors C28 and C29 can make the crystal oscillator X1 work stably; capacitors C11 and C12 are filter capacitors used to stabilize the power input of the microcontroller.

[0035] Preferably, in this embodiment, the model of U3 is FM33LGXX6-N; the model of the single-row pin P3 is 5*2.54, the model of the crystal oscillator X1 is 32768; the values ​​of capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, and capacitor C6 are 22pF, 22pF, 4.7uF, 10uF, 100nF, and 100nF, respectively.

[0036] See also Figure 3 The key module includes a key J5, a resistor R11 and a capacitor C7, wherein the pin 1 of the key J5 is connected to one end of the resistor R11 and one end of the capacitor C7 and connected to the pin 55 of the chip U3, the other end of the resistor R11 is connected to VCC, and the pin 2 of the key J5 and the other end of the capacitor C7 are grounded respectively;

[0037] Its function is: capacitor C7 has a debouncing effect and can effectively detect whether the key is actually pressed.

[0038] In this embodiment, the model of the button J5 is BH06, and the values ​​of the resistor R11 and the capacitor C7 are 300K and 100nF respectively.

[0039] See also Figure 4The storage module includes a storage chip U11, a capacitor C25, a resistor R34 and a resistor R35, wherein pin 1, pin 2, pin 3 and pin 4 of the storage chip U11 are all connected to one end of the capacitor C25 and grounded, the other end of the capacitor C25 is commonly connected to one end of the resistor R34, one end of the resistor R35, pin 8 of U11 and pin 15 of the chip U3 and connected to AT24_VCC; the other end of the resistor R34, pin 6 of the chip U11 and pin 16 of the chip U3 are commonly connected; pin 5 of U11, the other end of the resistor R35 and pin 17 of the chip U3 are commonly connected; pin 7 of U11 is grounded;

[0040] Its function is: the storage circuit is mainly used to record some important data generated during the operation of some products. Resistors R34 and R35 are pull-up resistors, which can make the data storage or reading process more stable.

[0041] In this embodiment, the model of U8 is preferably FMC1024; the values ​​of capacitor C25, resistor R34 and resistor R35 are 100nF, 10K and 10K respectively.

[0042] See also Figure 5The communication module includes a SIM card U7, a chip U8, an LDO U6, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22 and a capacitor C32, a resistor R25, a resistor R26, an LED lamp D6 and an antenna J1; wherein one end of the capacitor C20, one end of the capacitor C21 and one end of the capacitor C22 are connected to the pins 42 and 43 of the chip U8 and connected to the pin 4 of U6, and the other end of the capacitor C20, the other end of the capacitor C21 and the other end of the capacitor C22 are connected to the ground; the pin 1 of the antenna J1 is connected to the pin 35 of the chip U8, and the pin 2 of the antenna J1 is connected to the resistor R2 6 and grounded; the positive electrode of the LED lamp D6 is connected to the pin 25 of the chip U8, and the negative electrode of the LED lamp D6 is connected to the other end of the resistor R26; one end of the capacitor C19 is connected to the pin 24 of the chip U8, and the other end of the capacitor C19 is grounded; one end of the resistor R25 is connected to the pin 7 of the chip U8, and the other end of R25 is grounded; one end of the capacitor C32 is connected to the pin 8 of the SIM card U7 and connected to the pin 14 of the chip U8, and the other end of the capacitor C32 is connected to the pin 1 of the chip U8 and grounded; the LDO Pin 1 of U6 is grounded, and pin 2 of LDO U6 is connected to pin 4 of chip U3; pin 3, pin 6, and pin 7 of the chip U7 are connected to pins 11, 13, and 12 of chip U8 respectively; pin 10, pin 27, pin 34, pin 36, pin 37, pin 40, pin 41, pin 45, pin 46, pin 47, pin 48, pin 70, pin 71, pin 72, pin 73, pin 88, pin 89, pin 90, pin 91, pin 92, pin 93, and pin 94 of the chip U8 are all grounded;

[0043] Its functions are as follows: LDO U6 mainly converts the 4V power supply into a voltage that can be used by module U8; capacitors C20, C21, and C22 are filter capacitors used to stabilize the power input of module U8.

[0044] Preferably, in this embodiment, the models of SIM card U7, chip U8 and LDO U6 are USIM Card, UMA603 and SY6283 respectively; the values ​​of capacitor C9, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and capacitor C19 are 100nF, 100uF, 10uF, 100nF, 100nF and 100nF respectively; the values ​​of resistor R25, resistor R26, LED lamp D6 and antenna J7 are 1K, 10K, red LED light and SMA antenna seat respectively.

[0045] See also Figure 6The power module includes a power socket P1, a diode D1, a diode D4, a 3.6V LDO U2, a capacitor E1, a capacitor E2, a capacitor C4, a capacitor C5, a resistor R4, a resistor R5, a resistor R6 and a resistor R45; Pin 1 of P1 is connected to the positive electrode of the diode D1 and one end of the resistor R4, Pin 2 of P1 is grounded, the other end of the resistor R4 is connected to the positive electrode of the diode D4 and one end of the resistor R45, the other end of the resistor R45 is connected to Pin 18 of the chip U3, and the negative electrode of the diode D4 is grounded; the negative electrode of the diode D1 is connected to the positive electrode of the capacitor E1, one end of the resistor R5 and the 2nd pin of the LDO U2 and connected to the pin 3 of the LDO U6, the negative electrode of the capacitor E1, the other end of the resistor R5, the positive electrode of the capacitor E2 and one end of the resistor R6 are connected, and the negative electrode of the capacitor E2 and the other end of the resistor R6 are connected and grounded; Pin 3 of the LDO U2 is connected to one end of the capacitor C4 and is simultaneously connected to one end of the capacitor C5 to VCC; Pin 1 of U2, the other end of capacitor C4 and the other end of capacitor C5 are connected and grounded;

[0046] Its function is: capacitors E1 and E2 can enable the product to supply power to the circuit when the power supply voltage is insufficient, so that each module can work normally, and resistors R5 and R6 can be capacitors. The charging voltages of capacitors E1 and E2 are equal.

[0047] Preferably, in this embodiment, the model of the power socket P1 is DA-142-508-2P; the models of the diode D1 and the diode D4 are M7 and blue LED light respectively; the values ​​of the capacitor E1, the capacitor E2, the capacitor C4, and the capacitor C5 are 1F / 3V, 1F / 3V, 100uF, and 100nF respectively; the values ​​of the resistor R4, the resistor R5, the resistor R6, and the resistor R45 are 100K, 2M, 2M, and 300K respectively; the model of the 3.6V LDO U2 is ME6210A36 / UR5636.

[0048] See also Figure 7The communication module includes capacitor C29, capacitor C36, capacitor C34, capacitor C37, capacitor C66, resistor R27, resistor R57, resistor R58, resistor R66, resistor R67, transistor Q10, chip U14 and socket P6; wherein pin 1 of chip U14 is connected to one end of capacitor C34, and pin 3 of U14 is connected to the other end of capacitor C34; pin 2 of chip U14 is connected to one end of capacitor C29, and the other end of capacitor C29 is grounded; pin 4 of chip U14 is connected to one end of capacitor C36, and pin 5 of U14 is connected to the other end of capacitor C36; pin 6 of chip U14 is connected to one end of capacitor C37, and the other end of capacitor C37 is grounded; pin 11 of chip U14 is connected to one end of resistor R66, and resistor R66 is connected to the ground. The other end is connected to pin 38 of chip U3; pin 12 of chip U14 is connected to one end of resistor R67, and the other end of resistor R67 is connected to pin 37 of chip U3; pin 13 of chip U14 is connected to one end of resistor R58, and the other end of resistor R58 is connected to pin 2 of socket P6; pin 14 of chip U14 is connected to one end of resistor R57, and the other end of resistor R57 is connected to pin 1 of socket P6; pin 15 of chip U14 is connected to the other end of capacitor C66 and grounded, pin 16 of chip U14 and one end of capacitor C66 are connected to pin 3 of transistor Q10, pin 1 of transistor Q10 is connected to one end of resistor R27, the other end of resistor R27 is connected to pin 39 of chip U3, and pin 2 of transistor Q10 is connected to the VCC network;

[0049] Its function is: Capacitor C66 is a filter capacitor used to stabilize the power input of U14.

[0050] Working principle: In this embodiment, when the gas leakage data is input into chip U7 by socket P6 in the communication module, the data is input into chip U3 after being processed by chip U7. Chip U3 stores the data into the storage module and transmits it to chip U8. Chip U8 processes the data and uploads it to the detection platform through antenna J1. The system can send the corresponding processing method to the gas leakage alarm device.

Claims

1. A gas leak alarm remote transmission system, characterized in that: It includes a power module, a communication module, a storage module, a key module, a communication module and a control module; The power module is connected to the communication module, the storage module, the key module, the communication module and the control module; The control module is also connected with the communication module, the storage module, the key module and the communication module.

2. The gas leak alarm remote transmission system as claimed in claim 1, characterized in that: The control module includes a chip U3, a single-row pin P3, a crystal oscillator X1, a capacitor C6, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11 and a capacitor C12; Pin 1 of the single-row needle P3 is connected to VCC, pin 2 of the single-row needle P3 is grounded, pin 3 of the single-row needle P3 is connected to pin 1 of chip U3, pin 4 of the single-row needle P3 is connected to pin 64 of chip U3, and pin 5 of the single-row needle P5 is connected to pin 63 of chip U3; Pin 34 of the chip U3 is connected to one end of capacitor C6 and to VCC, and pin 33 of the chip U3 is connected to the other end of capacitor C6 and to ground; pin 48 of the chip U3 is connected to one end of capacitor C8 and one end of crystal oscillator X1, pin 49 of the chip U3 is connected to one end of capacitor C9 and the other end of crystal oscillator X1, and the other end of capacitor C8 is connected to the other end of capacitor C9 and to ground; pin 50 of the chip U3 is connected to one end of capacitor C10, and the other end of capacitor C10 is grounded; pin 52 and pin 54 of the chip U3 are connected to one end of capacitor C11 and one end of capacitor C12 and to VCC, and the other end of capacitor C11 and the other end of capacitor C12 are connected to ground; pin 51 and pin 53 of the chip U3 are both grounded.

3. The gas leak alarm remote transmission system as claimed in claim 2, characterized in that: The key module includes a key J5, a resistor R11 and a capacitor C7; Pin 1 of the button J5 is connected to one end of the resistor R11 and one end of the capacitor C7 and connected to pin 55 of the chip U3. The other end of the resistor R11 is connected to VCC. Pin 2 of the button J5 and the other end of the capacitor C7 are grounded respectively.

4. The gas leak alarm remote transmission system as claimed in claim 3, characterized in that: The storage module includes a storage chip U11, a capacitor C25, a resistor R34 and a resistor R35; Pin 1, pin 2, pin 3 and pin 4 of the storage chip U11 are all connected to one end of capacitor C25 and grounded, the other end of capacitor C25 is connected to one end of resistor R34, one end of resistor R35, pin 8 of U11 and pin 15 of chip U3 and connected to VCC; the other end of resistor R34, pin 6 of chip U11 and pin 16 of chip U3 are connected together; pin 5 of U11, the other end of resistor R35 and pin 17 of chip U3 are connected together; pin 7 of U11 is grounded.

5. The gas leak alarm remote transmission system as claimed in claim 4, characterized in that: The communication module includes LDO U6, SIM card U7, chip U8, capacitor C19, capacitor C20, capacitor C21, capacitor C22, capacitor C32, resistor R25, resistor R26, LED lamp D6 and antenna J1; One end of the capacitor C20, one end of the capacitor C21, and one end of the capacitor C22 are connected to the pins 42 and 43 of the chip U8 and connected to the pin 4 of U6, and the other ends of the capacitor C20, the other ends of the capacitor C21, and the other ends of the capacitor C22 are connected to the ground; Pin 1 of the antenna J1 is connected to the pin 35 of the chip U8, and Pin 2 of the antenna J1 is connected to one end of the resistor R26 and grounded; the positive electrode of the LED lamp D6 is connected to the pin 25 of the chip U8, and the negative electrode of the LED lamp D6 is connected to the other end of the resistor R26; one end of the capacitor C19 is connected to the pin 24 of the chip U8, and the other end of the capacitor C19 is grounded; one end of the resistor R25 is connected to the pin 7 of the chip U8, and the other end of R25 is grounded; one end of the capacitor C32 is connected to the pin 8 of the SIM card U7 and connected to the pin 14 of the chip U8, and the other end of the capacitor C32 is connected to the pin 1 of the chip U8 and grounded; Pin 1 of the LDO U6 is grounded, and the LDO Pin 2 of U6 is connected to pin 4 of chip U3; pin 3, pin 6 and pin 7 of the chip U7 are respectively connected to pin 11, 13 and 12 of chip U8; pin 17 of the chip U8 is connected to pin 6 of U3, pin 18 of the chip U8 is connected to pin 5 of U3, and pin 10, pin 27, pin 34, pin 36, pin 37, pin 40, pin 41, pin 45, pin 46, pin 47, pin 48, pin 70, pin 71, pin 72, pin 73, pin 88, pin 89, pin 90, pin 91, pin 92, pin 93 and pin 94 of the chip U8 are all grounded.

6. The gas leak alarm remote transmission system as claimed in claim 5, characterized in that: The power module includes a power socket P1, a diode D1, a diode D4, an LDO U2, a capacitor E1, a capacitor E2, a capacitor C4, a capacitor C5, a resistor R4, a resistor R5, a resistor R6 and a resistor R45; Pin 1 of P1 is connected to the positive electrode of diode D1 and one end of resistor R4, pin 2 of P1 is grounded, the other end of resistor R4 is connected to the positive electrode of diode D4 and one end of resistor R45, the other end of resistor R45 is connected to pin 18 of chip U3, and the negative electrode of diode D4 is grounded; the negative electrode of diode D1 is connected to the positive electrode of capacitor E1, one end of resistor R5 and pin 2 of LDO U2 and connected to pin 3 of LDO U6, the negative electrode of capacitor E1, the other end of resistor R5, the positive electrode of capacitor E2 and one end of resistor R6 are connected, and the negative electrode of capacitor E2 and the other end of resistor R6 are connected and grounded; pin 3 of LDO U2 is connected to one end of capacitor C4 and at the same time connected to one end of capacitor C5 to VCC, and pin 3 of LDO U2 is connected to pin 8 of U11, the other end of R11 and pin 34, pin 52 and pin 54 of U3; pin 1 of LDO U2, the other end of capacitor C4 and the other end of capacitor C5 are connected and grounded.

7. The gas leak alarm remote transmission system as claimed in claim 6, characterized in that: The communication module includes capacitor C29, capacitor C36, capacitor C34, capacitor C37, capacitor C66, resistor R27, resistor R57, resistor R58, resistor R66, resistor R67, transistor Q10, chip U14 and socket P6; Pin 1 of the chip U14 is connected to one end of capacitor C34, and pin 3 of U14 is connected to the other end of capacitor C34; pin 2 of chip U14 is connected to one end of capacitor C29, and the other end of capacitor C29 is grounded; pin 4 of chip U14 is connected to one end of capacitor C36, and pin 5 of U14 is connected to the other end of capacitor C36; pin 6 of chip U14 is connected to one end of capacitor C37, and the other end of capacitor C37 is grounded; pin 11 of chip U14 is connected to one end of resistor R66, and the other end of resistor R66 is connected to pin 38 of chip U3; pin 12 of chip U14 is connected to one end of resistor R67, and the other end of resistor R67 is connected to chip Pin 37 of U3 is connected; Pin 13 of chip U14 is connected to one end of resistor R58, and the other end of resistor R58 is connected to pin 2 of socket P6; Pin 14 of chip U14 is connected to one end of resistor R57, and the other end of resistor R57 is connected to pin 1 of socket P6; Pin 15 of chip U14 is connected to the other end of capacitor C66 and grounded, Pin 16 of chip U14 and one end of capacitor C66 are connected to pin 3 of transistor Q10, pin 1 of transistor Q10 is connected to one end of resistor R27, and the other end of resistor R27 is connected to pin 39 of chip U3, and pin 2 of transistor Q10 is connected to pin 3 of U2 and connected to VCC.

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