A portable gas leak detector
By carrying a portable gas leak detector on the drone, remote control and real-time data transmission are realized, which solves the problem of insufficient convenience and safety of gas leak detection equipment in the prior art, and improves the detection efficiency and safety.
Patent Information
- Application Number
- CN202420642846.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The detection of existing gas leakage detection equipment is not very convenient and has low safety, making it difficult to quickly and safely reach the gas leakage area for inspection.
A portable gas leakage detector is designed, and the drone is equipped with a detector detector and data receiver to achieve remote control and real-time data transmission. Users can monitor gas concentration in real time through mobile phone software.
It improves the convenience and safety of gas leakage detection, reduces the risk to the detector, enhances the response speed and accuracy of the detection, and reduces the volume of the detector.
Smart Images

Figure CN222719106U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of gas leakage detection and relates to a detector, in particular to a portable gas leakage detector. Background Art
[0002] In modern leak detection solutions, it is usually necessary to manually go to the gas pipeline network and use special detection equipment to perform leak detection. However, this manual detection method has some challenges and limitations. First, manually reaching the suspected gas leak area may involve danger, because gas leaks may cause fires or explosions, posing a potential threat to personnel safety. Second, some gas leak areas may be located in hard-to-reach places, such as harsh environments or high areas, making manual detection difficult and time-consuming. Utility Model Content
[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a portable gas leak detector to solve the technical problems of the gas leak detection equipment in the prior art being not convenient and safe.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A portable gas leak detector comprises a detector detector and a detector data receiver arranged on an unmanned aerial vehicle, wherein the detector detector comprises a first power supply module circuit, a first remote communication module circuit, a storage module circuit, a leakage detection module circuit and a first microcontroller module circuit, wherein a first end of the first power supply module circuit is connected to the leakage detection module circuit, a second end of the first power supply module circuit is commonly connected to the first remote communication module circuit and the first microcontroller module circuit, and the first microcontroller module is respectively connected to the first remote communication module circuit, the storage module circuit and the leakage detection module circuit;
[0006] The detector data receiver includes a second power supply module circuit, a second remote communication module circuit, a voltage acquisition module circuit, a Bluetooth module circuit and a second microcontroller module circuit; the second power supply module circuit is respectively connected to the second remote communication module circuit and the voltage acquisition module circuit, and the second microcontroller module circuit is respectively connected to the second remote communication module circuit, the voltage acquisition module circuit and the Bluetooth module circuit.
[0007] The utility model also includes the following technical features:
[0008] The first power supply module circuit includes a power battery holder J1, a diode D1, a diode D3, a diode D13, a step-down module U1, a voltage stabilizing module U2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor E3, a capacitor E4 and an inductor L1; Pin 2 of the power battery holder J1 is grounded, Pin 1 of the power battery holder J1 is connected to one end of the diode D1, a second end of the diode D1 is connected to one end of the capacitor C2, a positive electrode of the capacitor E4 and pin 1 of the step-down module U1; a second end of the capacitor C2 is connected to a negative electrode of the capacitor E4, one end of the resistor R1 and pin 3 and pin 5 of the step-down module U1, a positive electrode of the diode D3, one end of the capacitor C1, one end of the capacitor C3 and a negative electrode of the capacitor E3 and is grounded, a second end of the resistor R1 is connected to pin 1 of the step-down module U1 4 is commonly connected to one end of the resistor R2, the second end of the resistor R2 is connected to one end of the resistor R3, the second end of the resistor R3 is commonly connected to one end of the inductor L1, the second end of the capacitor C1, the second end of the capacitor C3, the positive electrode of the capacitor E3 and the positive electrode of the diode D13, the second end of the inductor L1 is commonly connected to the negative electrode of the diode D3 and the pin 2 of the step-down module U1, the negative electrode of the diode D13 is connected to the pin 2 of the voltage stabilizing module U2 at a point, and the connection point is connected to the leakage detection module circuit as the first end of the first power supply module circuit; the pin 1 of the voltage stabilizing module U2 is commonly connected to one end of the capacitor C4 and one end of the capacitor C5 and is grounded, the second end of the capacitor C4 is commonly connected to the second end of the capacitor C5 and the pin 3 of the voltage stabilizing module U2 at a point, and the point is commonly connected to the first microcontroller module circuit and the first remote communication module circuit as the second end of the first power supply module circuit.
[0009] The first remote communication module circuit includes a remote module U4, a transistor Q1, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of the transistor Q1 is connected, the base of the transistor is connected to one end of the resistor R10, the second end of the resistor R10 is connected to the first microcontroller module circuit, the collector of the transistor is connected to one end of the capacitor C16, one end of the capacitor C17 and pins 7, 18 and 15 of the remote module U4, the second end of the capacitor C16 and the second end of the capacitor C17 are both grounded, pin 19 of the remote module U4 is connected to one end of the capacitor C18, the second end of the capacitor C18 is grounded, pin 16 of the remote module U4 is connected to one end of the resistor R8, and the first end of the resistor R8 is connected to the first microcontroller module circuit. The two ends are connected to the 17th and 20th pins of the remote module U4 and are grounded; the 13th pin of the remote module U4 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U4 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U4, The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U4 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U4 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, and the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U4 are respectively connected to the first microcontroller module circuit; pin 8 and pin 14 of the remote module U4 are commonly grounded.
[0010] The storage module includes a storage module U11, a resistor R6, a resistor R7, and a capacitor C15, wherein pin 8 of the storage module U11 is connected to the first microcontroller module circuit, one end of the resistor R6, one end of the resistor R7, and one end of the capacitor C15, the second end of the resistor R6 is connected to pin 6 of the storage module U11 and the first microcontroller module circuit, the second end of the resistor R7 is connected to pin 5 of the storage module U11 and the first microcontroller module circuit, the second end of the capacitor C15 is connected to pin 1, pin 2, pin 3, pin 4, and pin 7 of the storage module U11 and is grounded, and pin 7 of the storage module U11 is grounded.
[0011] The leakage detection module circuit includes a leakage detection module J2, a MOS transistor Q2, a MOS transistor Q3, a resistor R12, a resistor R4, a resistor R5, a capacitor C13 and a capacitor C14, wherein one end of the resistor R12 and the S pole of the MOS transistor Q2 are both connected to the power supply circuit, the G pole of the MOS transistor Q2 is commonly connected to the second end of the resistor R12 and the S pole of the MOS transistor Q3, the D pole of the MOS transistor Q3 is grounded, the G pole of the MOS transistor Q3 is connected to the first microcontroller module circuit, the D pole of the MOS transistor Q2 is connected to the pin 1 of the leakage detection module J2, the pin 2 of the leakage detection module J2 is connected to one end of the resistor R4, the second end of the resistor R4 is commonly connected to one end of the capacitor C13 and the first microcontroller module circuit, the second end of the capacitor C13 is grounded, the pin 3 of the leakage detection module J2 is commonly connected to one end of the capacitor C14 and one end of the resistor R5, the second end of the capacitor C14 is grounded, the second end of the resistor R5 is connected to the first microcontroller module circuit, and the pin 4 of the leakage detection module J2 is grounded.
[0012] The second remote communication module circuit includes a remote module U7, a transistor Q2, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of transistor Q2 is connected, the base of the transistor is connected to one end of resistor R10, the second end of resistor R10 is connected to the second microcontroller module circuit, the collector of the transistor is connected to one end of capacitor C16, one end of capacitor C17 and pins 7, 18 and 15 of the remote module U7, the second end of capacitor C16 and the second end of capacitor C17 are both grounded, pin 19 of the remote module U7 is connected to one end of capacitor C18, the second end of capacitor C18 is grounded, pin 16 of the remote module U7 is connected to one end of resistor R8, and resistor R8 The second end of the inductor L3 is connected to the 17th and 20th pins of the remote module U7; the 13th pin of the remote module U7 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U7 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U7, and the second end of the inductor L4 is connected to the antenna ANT and one end of the capacitor C20. The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U7 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U7 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U7 are respectively connected to the second microcontroller module circuit; pin 8 and pin 14 of the remote module U7 are commonly grounded.
[0013] The second power supply module circuit includes a power socket J1 and a diode D1, wherein pin 1 of the power socket J1 is connected to the anode of the diode D1 and the voltage acquisition module circuit, the cathode of the diode D1 is connected to the second microcontroller module circuit, and pin 2 of the power socket J1 is grounded.
[0014] The voltage acquisition module circuit includes a resistor R1, a resistor R2 and a capacitor C1, wherein one end of the resistor R1 is connected to the second power supply module circuit, the second end of the resistor R1 is connected to the second microcontroller module circuit, one end of the resistor R2 and one end of the capacitor C1, and the second end of the resistor R2 and the second end of the capacitor C1.
[0015] The Bluetooth module circuit includes a Bluetooth module U6, a transistor Q3, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, an inductor L2 and a crystal oscillator Y1; wherein, one end of the resistor R16 is connected to the power supply circuit, the second end of the resistor R16 is connected to the emitter of the transistor Q3, the base of the transistor Q3 is connected to one end of the resistor R17, one end of the resistor R17 is connected to the second microcontroller module circuit, the collector of the transistor Q3 is connected to pin 4, pin 7 and one end of the capacitor C14 of the Bluetooth module U6, the second end of the capacitor C14 is grounded, the pin 1 of the Bluetooth module U6 is connected to pin 1 of the crystal oscillator Y1 and one end of the capacitor C15, the second end of the capacitor C15 is grounded, and the Bluetooth module U6 is connected to the power supply circuit. Pin 2 of Bluetooth module U6 is connected to pin 3 of crystal oscillator Y1 and one end of capacitor C16, and the second end of capacitor C16 is grounded. Pin 5 of Bluetooth module U6 is connected to one end of inductor L2, and the second end of inductor L2 is connected to pin 6 of Bluetooth module U6 and one end of capacitor C13, and the second end of capacitor C13 is grounded; pin 9 of Bluetooth module U6 is connected to one end of resistor R19, and the second end of resistor R19 is connected to the second microcontroller module circuit; pin 10 of Bluetooth module U6 is connected to one end of resistor R18, and the second end of resistor R18 is connected to the second microcontroller module circuit; pin 15 of Bluetooth module U6 is connected to pin 1 of antenna BT_ANT1, and pin 2 of antenna BT_ANT1 is connected to pin 16 of Bluetooth module U6; pin 2 and pin 4 of crystal oscillator Y1 are both grounded.
[0016] Compared with the prior art, the utility model has the following beneficial technical effects:
[0017] (I) The utility model realizes a new mode of leak detection by carrying an unmanned aerial vehicle. The unmanned aerial vehicle is equipped with a leak detector, so that the unmanned aerial vehicle can easily reach the gas leak detection area and realize the function of remotely controlling the gas leak detector to perform leak detection. This not only improves the convenience and flexibility of leak detection, but also greatly reduces the danger to gas detection personnel, and solves the technical problems of low convenience and low safety of gas leak detection equipment in the prior art.
[0018] (II) In the present utility model, the leak detector is operated by a drone, and the detected data is transmitted to the detector data receiver in real time through the detector detector. The data receiver is responsible for receiving, processing and forwarding the data to the external mobile phone software, and the user can view the gas concentration information in real time through the external mobile phone software. This remote data transmission and real-time monitoring method allows users to understand the leakage situation anytime and anywhere, take necessary measures in time, and improve the response speed and accuracy of leak detection. Compared with traditional manual detection, this leak detection solution based on drone mounting has obvious advantages. It not only reduces the danger to personnel, but also greatly speeds up the efficiency of gas detection. Drones can fly over the gas leakage area quickly and accurately, avoiding the difficult-to-reach or dangerous situations that may be encountered in manual detection, and greatly improving the safety and reliability of leak detection.
[0019] (III) The utility model removes the traditional interfaces such as LCD and power supply, uses the power supply on the drone, and uses the external mobile phone software display instead of LCD, which greatly reduces the size of the leak detector. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 It is a schematic diagram of the first power supply module circuit in the utility model;
[0022] Figure 3 is a schematic diagram of a first remote communication module circuit in the utility model;
[0023] Figure 4 It is a schematic diagram of the storage module circuit in the utility model;
[0024] Figure 5 It is a schematic diagram of the leakage detection module circuit in the utility model;
[0025] Figure 6 is a schematic diagram of a first microcontroller module circuit in the utility model;
[0026] Figure 7 It is a schematic diagram of the second power supply module circuit and the voltage acquisition module circuit in the utility model;
[0027] Figure 8 is a schematic diagram of the second remote communication module circuit in the utility model;
[0028] Fig. 9 is a schematic diagram of the Bluetooth module circuit in the utility model;
[0029] Fig.10Schematic diagram of the second microcontroller module circuit in the utility model
[0030] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION
[0031] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.
[0032] 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.
[0033] The utility model provides a portable gas leak detector, comprising a detector detector and a detector data receiver arranged on an unmanned aerial vehicle, the detector detector comprising a first power supply module circuit, a first remote communication module circuit, a storage module circuit, a leakage detection module circuit and a first microcontroller module circuit, the first end of the first power supply module circuit is connected to the leakage detection module circuit, the second end of the first power supply module circuit is commonly connected to the first remote communication module circuit and the first microcontroller module circuit, the first microcontroller module is respectively connected to the first remote communication module circuit, the storage module circuit and the leakage detection module circuit;
[0034] The detector data receiver includes a second power supply module circuit, a second remote communication module circuit, a voltage acquisition module circuit, a Bluetooth module circuit and a second microcontroller module circuit; the second power supply module circuit is respectively connected to the second remote communication module circuit and the voltage acquisition module circuit, and the second microcontroller module circuit is respectively connected to the second remote communication module circuit, the voltage acquisition module circuit and the Bluetooth module circuit;
[0035] In the above technical scheme, the first microcontroller module circuit includes a microcontroller U3 of model FM33LC026 and its peripheral circuit, the peripheral circuit includes capacitor C6, capacitor C8, capacitor C9, capacitor C10, capacitor C11 and capacitor C12, wherein pin 34, pin 52, pin 54, one end of capacitor C6, one end of capacitor C11 and one end of capacitor C12 of the microcontroller U3 are all connected to the second end of the first power supply module circuit, the second end of capacitor C6 is connected to pin 33 of the microcontroller U3 and is grounded, the second end of capacitor C11 is connected to the second end of the capacitor and is grounded, pin 48 of the microcontroller U3 is commonly connected to one end of crystal oscillator X1 and one end of capacitor C8, pin 49 of the microcontroller U3 is commonly connected to the second end of crystal oscillator X1 and one end of capacitor C9, the second end of capacitor C8 is connected to the second end of capacitor C9 and is grounded; pin 50 of the microcontroller U3 is connected to one end of capacitor C10, the second end of capacitor C10 is grounded, and pins 51 and 53 of the microcontroller U3 are both grounded.
[0036] The first microcontroller module circuit is used to control each circuit and read the gas concentration data information detected by the leakage detection module; wherein, the values of capacitor C6, capacitor C8, capacitor C9, capacitor C10, capacitor C11, and capacitor C12 are 100nF, 22pF, 22pF, 4.7uF, 10uF, and 100nF, respectively.
[0037] The second microcontroller module circuit includes a microcontroller U5 of model FM33LC026 and its peripheral circuits, the peripheral circuits including capacitors C6, C8, C9, C10, C11 and C12, wherein pins 34, 52, 54, one end of capacitor C6, one end of capacitor C11 and one end of capacitor C12 of the microcontroller U5 are all connected to the second power supply module circuit, the second end of capacitor C6 is connected to pin 33 of the microcontroller U5 and is grounded, the second end of capacitor C11 is connected to the second end of the capacitor and is grounded, pin 48 of the microcontroller U5 is commonly connected to one end of crystal oscillator X1 and one end of capacitor C8, pin 49 of the microcontroller U5 is commonly connected to the second end of crystal oscillator X1 and one end of capacitor C9, the second end of capacitor C8 is connected to the second end of capacitor C9 and is grounded; pin 50 of the microcontroller U5 is connected to one end of capacitor C10, the second end of capacitor C10 is grounded, and pins 51 and 53 of the microcontroller U5 are both grounded.
[0038] The second microcontroller module circuit is used to control each module and read the gas concentration data received by the second remote communication module circuit. Among them, the values of capacitor C6, capacitor C8, capacitor C9, capacitor C10, capacitor C11, and capacitor C12 are 100nF, 22pF, 22pF, 4.7uF, 10uF, and 100nF respectively.
[0039] A new mode of leak detection is realized by drone-mounted mode. The drone is equipped with a leak detector, which enables the drone to easily reach the gas leak detection area and realize the function of remotely controlling the gas leak detector for leak detection, which not only improves the convenience and flexibility of leak detection, but also greatly reduces the danger to gas detection personnel. It solves the technical problems of low convenience and low safety of gas leak detection equipment in the prior art.
[0040] The leak detector is operated by a drone, and the detected data is transmitted to the detector data receiver in real time through the detector detector. The data receiver is responsible for receiving, processing and forwarding data to the external mobile phone software, and the user can view the gas concentration information in real time through the external mobile phone software. This remote data transmission and real-time monitoring method allows users to understand the leakage situation anytime and anywhere, take necessary measures in time, and improve the response speed and accuracy of leak detection. Compared with traditional manual detection, this leak detection solution based on drone carrying has obvious advantages. It not only reduces the danger to personnel, but also greatly speeds up the efficiency of gas detection. Drones can fly over the gas leakage area quickly and accurately, avoiding the difficult-to-reach or dangerous situations that may be faced in manual detection, and greatly improves the safety and reliability of leak detection.
[0041] The traditional LCD, power supply and other interfaces have been removed, the power supply uses the power supply on the drone, and the external mobile phone software display replaces the LCD, which greatly reduces the size of the leak detector.
[0042] Specifically, the first power supply module circuit includes a power battery holder J1, a diode D1, a diode D3, a diode D13, a step-down module U1, a voltage stabilizing module U2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor E3, a capacitor E4 and an inductor L1; pin 2 of the power battery holder J1 is grounded, pin 1 of the power battery holder J1 is connected to one end of the diode D1, and the second end of the diode D1 is connected to one end of the capacitor C2, the positive electrode of the capacitor E4 and the pin 1 of the step-down module U1; the second end of the capacitor C2 is connected to the negative electrode of the capacitor E4, one end of the resistor R1 and the pin 3 and pin 5 of the step-down module U1, the positive electrode of the diode D3, one end of the capacitor C1, one end of the capacitor C3 and the negative electrode of the capacitor E3 are connected to the ground, and the second end of the resistor R1 is connected to the pin 4 and One end of the resistor R2 is connected together, the second end of the resistor R2 is connected to one end of the resistor R3, the second end of the resistor R3 is connected to one end of the inductor L1, the second end of the capacitor C1, the second end of the capacitor C3, the positive electrode of the capacitor E3 and the positive electrode of the diode D13, the second end of the inductor L1 is connected to the negative electrode of the diode D3 and the pin 2 of the step-down module U1, the negative electrode of the diode D13 is connected to the pin 2 of the voltage stabilizing module U2 at a point, and the connection point is connected to the leakage detection module circuit as the first end of the first power supply module circuit; the pin 1 of the voltage stabilizing module U2 is connected to one end of the capacitor C4 and one end of the capacitor C5 and is grounded, the second end of the capacitor C4 is connected to the second end of the capacitor C5 and the pin 3 of the voltage stabilizing module U2 at a point, and the point is connected to the first microcontroller module circuit and the first remote communication module circuit as the second end of the first power supply module circuit.
[0043] The above circuit inputs 12-24V voltage from the drone through the voltage regulator module U1. The voltage regulator module U1 outputs a stable 5V voltage through the feedback of the surrounding circuit to power the leakage detection module circuit, and the 5V output voltage is again reduced to 3.6V through the step-down module U2 to power the first remote communication module circuit, the storage module circuit and the first microcontroller module circuit.
[0044] Preferably, the models of the power battery holder J1, the voltage stabilizing module U1, the diodes D1, D3, D13, and the step-down module U2 are 5264-2A, LM2596, M7, SS15, M7, and ME6210A36.
[0045] The values of resistor R1, resistor R2, resistor R3, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor E3, capacitor E4, and inductor L1 are 1KΩ, 560Ω, 3KΩ, 33pf, 100nf, 100nf, 6.3V / 100uF, 100nf, 16V / 47uF, 50V / 330uF, and 4.7uH, respectively.
[0046] Specifically, the first remote communication module circuit includes a remote module U4, a transistor Q1, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of the transistor Q1 is connected, the base of the transistor is connected to one end of the resistor R10, the second end of the resistor R10 is connected to the first microcontroller module circuit, the collector of the transistor is connected to one end of the capacitor C16, one end of the capacitor C17 and pins 7, 18 and 15 of the remote module U4, the second end of the capacitor C16 and the second end of the capacitor C17 are both grounded, pin 19 of the remote module U4 is connected to one end of the capacitor C18, the second end of the capacitor C18 is grounded, pin 16 of the remote module U4 is connected to one end of the resistor R8, and the first end of the resistor R8 is connected to the first microcontroller module circuit. The two ends are connected to the 17th and 20th pins of the remote module U4 and are grounded; the 13th pin of the remote module U4 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U4 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U4, The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U4 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U4 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, and the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U4 are respectively connected to the first microcontroller module circuit; pin 8 and pin 14 of the remote module U4 are commonly grounded.
[0047] In the above technical solution, the first remote communication module circuit is used to communicate data with the detector data receiver to transmit gas concentration information; wherein the second end of the resistor R10 is connected to the 24th pin of the microcontroller U3 of the first microcontroller module circuit; the 1st pin, 2nd pin, 3rd pin, 4th pin, 5th pin and 6th pin of the remote module U4 are respectively connected to the 25th pin CE, the 26th pin CSN, the 27th pin SCK, the 28th pin MISO, the 29th pin MOSI and the 30th pin IRQ of the microcontroller U3 of the first microcontroller module circuit.
[0048] Preferably, the models of the remote module U4 and the transistor Q1 are NRF24L01 and MMBTSB1197R respectively.
[0049] The values of resistor R8, resistor R9, resistor R10, resistor R11, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, capacitor C22, capacitor C23, capacitor C24, inductor L2, inductor L3, inductor L4, and crystal oscillator X2 are 22KΩ, 1MΩ, 5.1K, 5.1R, 110nF, 1nF, 33nF, 1.5pF, 100nF, 4.7pF, 2.2nF, 22pF, 22pF, 3.9nH, 8.2nH, 2.7nH, and 16MHz, respectively.
[0050] Specifically, the storage module includes a storage module U11, a resistor R6, a resistor R7, and a capacitor C15, wherein pin 8 of the storage module U11 is connected to the first microcontroller module circuit, one end of the resistor R6, one end of the resistor R7, and one end of the capacitor C15, the second end of the resistor R6 is connected to pin 6 of the storage module U11 and the first microcontroller module circuit, the second end of the resistor R7 is connected to pin 5 of the storage module U11 and the first microcontroller module circuit, the second end of the capacitor C15 is connected to pin 1, pin 2, pin 3, pin 4, and pin 7 of the storage module U11 and is grounded, and pin 7 of the storage module U11 is grounded.
[0051] In the above technical solution, the storage module circuit is used to store the gas concentration information collected in each time period; pin 8 of the storage module U11 is connected to pin 15 AT24_VCC of the microcontroller U3 of the first microcontroller module circuit; the second end of the resistor R6 is connected to pin 6 of the storage module U11 and pin 16 24SCL of the microcontroller U3 of the first microcontroller module circuit, and the second end of the resistor R7 is connected to pin 5 of the storage module U11 and pin 17 24SDA of the microcontroller U3 of the first microcontroller module circuit.
[0052] Preferably, the storage module U11 adopts an AT24C1024 chip, and the values of the resistor R6, the resistor R7, and the capacitor C15 are 10KΩ, 10KΩ, and 100nF, respectively.
[0053] Specifically, the leakage detection module circuit includes a leakage detection module J2, a MOS transistor Q2, a MOS transistor Q3, a resistor R12, a resistor R4, a resistor R5, a capacitor C13 and a capacitor C14, wherein one end of the resistor R12 and the S pole of the MOS transistor Q2 are both connected to the power supply circuit, the G pole of the MOS transistor Q2 is commonly connected to the second end of the resistor R12 and the S pole of the MOS transistor Q3, the D pole of the MOS transistor Q3 is grounded, the G pole of the MOS transistor Q3 is connected to the first microcontroller module circuit, the D pole of the MOS transistor Q2 is connected to pin 1 of the leakage detection module J2, the pin 2 of the leakage detection module J2 is connected to one end of the resistor R4, the second end of the resistor R4 is commonly connected to one end of the capacitor C13 and the first microcontroller module circuit, the second end of the capacitor C13 is grounded, the pin 3 of the leakage detection module J2 is commonly connected to one end of the capacitor C14 and one end of the resistor R5, the second end of the capacitor C14 is grounded, the second end of the resistor R5 is connected to the first microcontroller module circuit, and the pin 4 of the leakage detection module J2 is grounded.
[0054] In the above technical solution, the leakage detection module circuit is used to read the gas concentration in the air through the first microcontroller module circuit; wherein the G pole of the MOS tube Q3 is connected to the 2-pin GAS_CTL of the microcontroller U3 of the first microcontroller module circuit, the second end of the resistor R4 is connected to one end of the capacitor C13 and the 40-pin UART5_TXD of the microcontroller U3 of the first microcontroller module circuit, and the second end of the resistor R5 is connected to the 30-pin UART5_RXD of the microcontroller U3 of the first microcontroller module circuit.
[0055] Preferably, the leakage detection module J2, MOS tube Q2, and MOS tube Q3 are made of Gasboard-2501, AO3407, and AO3404 respectively;
[0056] The values of the resistor R12, the resistor R4, the resistor R5, the capacitor C13, and the capacitor C14 are 100KΩ, 100Ω, 100Ω, 100nF, and 100nF, respectively.
[0057] Specifically, the second remote communication module circuit includes a remote module U7, a transistor Q2, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of transistor Q2 is connected, the base of the transistor is connected to one end of resistor R10, the second end of resistor R10 is connected to the second microcontroller module circuit, the collector of the transistor is connected to one end of capacitor C16, one end of capacitor C17 and pins 7, 18 and 15 of the remote module U7, the second end of capacitor C16 and the second end of capacitor C17 are both grounded, pin 19 of the remote module U7 is connected to one end of capacitor C18, the second end of capacitor C18 is grounded, pin 16 of the remote module U7 is connected to one end of resistor R8, and resistor R8 The second end of the inductor L3 is connected to the 17th and 20th pins of the remote module U7; the 13th pin of the remote module U7 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U7 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U7, and the second end of the inductor L4 is connected to the antenna ANT and one end of the capacitor C20. The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U7 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U7 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U7 are respectively connected to the second microcontroller module circuit; pin 8 and pin 14 of the remote module U7 are commonly grounded.
[0058] In the above technical solution, the second remote communication module circuit is used to perform data communication with the first remote communication module circuit and receive gas concentration information;
[0059] Among them, the second end of the resistor R10 is connected to the 24th pin of the microcontroller U5 of the second microcontroller module circuit, and the 1st, 2nd, 3rd, 4th, 5th and 6th pins of the remote module U7 are respectively connected to the 25th CE, 26th CSN, 27th SCK, 28th MISO, 29th MOSI and 30th IRQ of the microcontroller U5 of the second microcontroller module circuit.
[0060] Preferably, the models of the remote module U7 and the transistor Q2 are NRF24L01 and MMBTSB1197R respectively.
[0061] The values of resistor R8, resistor R9, resistor R10, resistor R11, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, capacitor C22, capacitor C23, capacitor C24, inductor L2, inductor L3, inductor L4, and crystal oscillator X2 are 22KΩ, 1MΩ, 5.1K, 5.1R, 110nF, 1nF, 33nF, 1.5pF, 100nF, 4.7pF, 2.2nF, 22pF, 22pF, 3.9nH, 8.2nH, 2.7nH, and 16MHz, respectively.
[0062] Specifically, the second power supply module circuit includes a power socket J1 and a diode D1, wherein pin 1 of the power socket J1 is connected to the positive electrode of the diode D1 and the voltage acquisition module circuit, the negative electrode of the diode D1 is connected to the second microcontroller module circuit, and pin 2 of the power socket J1 is grounded.
[0063] In the above technical solution, the second power supply module circuit supplies power to the second remote communication module circuit, the voltage acquisition module circuit, the Bluetooth module circuit and the second microcontroller module circuit.
[0064] Preferably, the models of the power socket J1 and the diode D1 are 5264-2A and SS14;
[0065] Specifically, the voltage acquisition module circuit includes a resistor R1, a resistor R2 and a capacitor C1, wherein one end of the resistor R1 is connected to the second power supply module circuit, the second end of the resistor R1 is connected to the second microcontroller module circuit, one end of the resistor R2 and one end of the capacitor C1, and the second end of the resistor R2 and the second end of the capacitor C1.
[0066] In the above technical solution, the voltage acquisition module circuit is used to obtain battery voltage information; one end of resistor R1 and the second end of resistor R1 are connected to pin 41 AD of the microcontroller U5 of the second microcontroller module circuit, one end of resistor R2 and one end of capacitor C1.
[0067] Preferably, the values of the resistor R1, the resistor R2, and the capacitor C1 are 2 MΩ, 2 MΩ, and 1 nF.
[0068] Specifically, the Bluetooth module circuit includes a Bluetooth module U6, a transistor Q3, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, an inductor L2 and a crystal oscillator Y1; wherein, one end of the resistor R16 is connected to the power supply circuit, the second end of the resistor R16 is connected to the emitter of the transistor Q3, the base of the transistor Q3 is connected to one end of the resistor R17, one end of the resistor R17 is connected to the second microcontroller module circuit, the collector of the transistor Q3 is connected to pin 4, pin 7 and one end of the capacitor C14 of the Bluetooth module U6, the second end of the capacitor C14 is grounded, the pin 1 of the Bluetooth module U6 is connected to the pin 1 of the crystal oscillator Y1 and one end of the capacitor C15, the second end of the capacitor C15 is grounded, and the Bluetooth module Pin 2 of U6 is connected to pin 3 of crystal oscillator Y1 and one end of capacitor C16, the second end of capacitor C16 is grounded, pin 5 of Bluetooth module U6 is connected to one end of inductor L2, the second end of inductor L2 is connected to pin 6 of Bluetooth module U6 and one end of capacitor C13, the second end of capacitor C13 is grounded; pin 9 of Bluetooth module U6 is connected to one end of resistor R19, the second end of resistor R19 is connected to the second microcontroller module circuit, pin 10 of Bluetooth module U6 is connected to one end of resistor R18, the second end of resistor R18 is connected to the second microcontroller module circuit, pin 15 of Bluetooth module U6 is connected to pin 1 of antenna BT_ANT1, pin 2 of antenna BT_ANT1 is connected to pin 16 of Bluetooth module U6; pin 2 and pin 4 of crystal oscillator Y1 are both grounded.
[0069] In the above technical solution, the Bluetooth module circuit is used to send the gas concentration information and the battery voltage data to the external Bluetooth APP; wherein, one end of the resistor R17 is connected to the 7-pin VCC_BT_CTL of the microcontroller U5 of the second microcontroller module circuit, the second end of the resistor R19 is connected to the 5-pin of the microcontroller U5 of the second microcontroller module circuit, and the second end of the resistor R18 is connected to the 6-pin of the microcontroller U5 of the second microcontroller module circuit;
[0070] Preferably, the models of the Bluetooth module U6 and the transistor Q3 are FR8012 and MMBTSB1197R;
[0071] The values of resistor R16, resistor R17, resistor R18, resistor R19, capacitor C13, capacitor C14, capacitor C15, capacitor C16, inductor L2, and crystal oscillator Y1 are 5.1Ω, 5.1KΩ, 1KΩ, 1KΩ, 10uF, 2.2uF, 9pF, 9pF, 10uH, and 24MHz.
Claims
1. A portable gas leak detector, characterized in that: It includes a detector and a detector data receiver arranged on an unmanned aerial vehicle, wherein the detector includes a first power supply module circuit, a first remote communication module circuit, a storage module circuit, a leakage detection module circuit and a first microcontroller module circuit, wherein a first end of the first power supply module circuit is connected to the leakage detection module circuit, a second end of the first power supply module circuit is commonly connected to the first remote communication module circuit and the first microcontroller module circuit, and the first microcontroller module is respectively connected to the first remote communication module circuit, the storage module circuit and the leakage detection module circuit; The detector data receiver includes a second power supply module circuit, a second remote communication module circuit, a voltage acquisition module circuit, a Bluetooth module circuit and a second microcontroller module circuit; the second power supply module circuit is respectively connected to the second remote communication module circuit and the voltage acquisition module circuit, and the second microcontroller module circuit is respectively connected to the second remote communication module circuit, the voltage acquisition module circuit and the Bluetooth module circuit.
2. The portable gas leak detector according to claim 1, characterized in that: The first power supply module circuit includes a power battery holder J1, a diode D1, a diode D3, a diode D13, a step-down module U1, a voltage stabilizing module U2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor E3, a capacitor E4 and an inductor L1; Pin 2 of the power battery holder J1 is grounded, Pin 1 of the power battery holder J1 is connected to one end of the diode D1, a second end of the diode D1 is connected to one end of the capacitor C2, a positive electrode of the capacitor E4 and pin 1 of the step-down module U1; a second end of the capacitor C2 is connected to a negative electrode of the capacitor E4, one end of the resistor R1 and pin 3 and pin 5 of the step-down module U1, a positive electrode of the diode D3, one end of the capacitor C1, one end of the capacitor C3 and a negative electrode of the capacitor E3 and is grounded, a second end of the resistor R1 is connected to pin 1 of the step-down module U1 4 is commonly connected to one end of the resistor R2, the second end of the resistor R2 is connected to one end of the resistor R3, the second end of the resistor R3 is commonly connected to one end of the inductor L1, the second end of the capacitor C1, the second end of the capacitor C3, the positive electrode of the capacitor E3 and the positive electrode of the diode D13, the second end of the inductor L1 is commonly connected to the negative electrode of the diode D3 and the pin 2 of the step-down module U1, the negative electrode of the diode D13 is connected to the pin 2 of the voltage stabilizing module U2 at a point, and the connection point is connected to the leakage detection module circuit as the first end of the first power supply module circuit; the pin 1 of the voltage stabilizing module U2 is commonly connected to one end of the capacitor C4 and one end of the capacitor C5 and is grounded, the second end of the capacitor C4 is commonly connected to the second end of the capacitor C5 and the pin 3 of the voltage stabilizing module U2 at a point, and the point is commonly connected to the first microcontroller module circuit and the first remote communication module circuit as the second end of the first power supply module circuit.
3. The portable gas leak detector according to claim 1, characterized in that: The first remote communication module circuit includes a remote module U4, a transistor Q1, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of the transistor Q1 is connected, the base of the transistor is connected to one end of the resistor R10, the second end of the resistor R10 is connected to the first microcontroller module circuit, the collector of the transistor is connected to one end of the capacitor C16, one end of the capacitor C17 and pins 7, 18 and 15 of the remote module U4, the second end of the capacitor C16 and the second end of the capacitor C17 are both grounded, pin 19 of the remote module U4 is connected to one end of the capacitor C18, the second end of the capacitor C18 is grounded, pin 16 of the remote module U4 is connected to one end of the resistor R8, and the first end of the resistor R8 is connected to the first microcontroller module circuit. The two ends are connected to the 17th and 20th pins of the remote module U4 and are grounded; the 13th pin of the remote module U4 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U4 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U4, The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U4 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U4 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, and the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U4 are respectively connected to the first microcontroller module circuit; pin 8 and pin 14 of the remote module U4 are commonly grounded.
4. The portable gas leak detector according to claim 1, characterized in that: The storage module includes a storage module U11, a resistor R6, a resistor R7, and a capacitor C15, wherein pin 8 of the storage module U11 is connected to the first microcontroller module circuit, one end of the resistor R6, one end of the resistor R7, and one end of the capacitor C15, the second end of the resistor R6 is connected to pin 6 of the storage module U11 and the first microcontroller module circuit, the second end of the resistor R7 is connected to pin 5 of the storage module U11 and the first microcontroller module circuit, the second end of the capacitor C15 is connected to pin 1, pin 2, pin 3, pin 4, and pin 7 of the storage module U11 and is grounded, and pin 7 of the storage module U11 is grounded.
5. The portable gas leak detector according to claim 1, characterized in that: The leakage detection module circuit includes a leakage detection module J2, a MOS transistor Q2, a MOS transistor Q3, a resistor R12, a resistor R4, a resistor R5, a capacitor C13 and a capacitor C14, wherein one end of the resistor R12 and the S pole of the MOS transistor Q2 are both connected to the power supply circuit, the G pole of the MOS transistor Q2 is commonly connected to the second end of the resistor R12 and the S pole of the MOS transistor Q3, the D pole of the MOS transistor Q3 is grounded, the G pole of the MOS transistor Q3 is connected to the first microcontroller module circuit, the D pole of the MOS transistor Q2 is connected to the pin 1 of the leakage detection module J2, the pin 2 of the leakage detection module J2 is connected to one end of the resistor R4, the second end of the resistor R4 is commonly connected to one end of the capacitor C13 and the first microcontroller module circuit, the second end of the capacitor C13 is grounded, the pin 3 of the leakage detection module J2 is commonly connected to one end of the capacitor C14 and one end of the resistor R5, the second end of the capacitor C14 is grounded, the second end of the resistor R5 is connected to the first microcontroller module circuit, and the pin 4 of the leakage detection module J2 is grounded.
6. The portable gas leak detector according to claim 1, characterized in that: The second remote communication module circuit includes a remote module U7, a transistor Q2, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an inductor L2, an inductor L3, an inductor L4 and a crystal oscillator X2, wherein one end of the resistor R11 is connected to the second end of the first power supply module circuit and the first microcontroller module circuit, and the second end of the resistor R11 is connected to the transistor The emitter of transistor Q2 is connected, the base of the transistor is connected to one end of resistor R10, the second end of resistor R10 is connected to the second microcontroller module circuit, the collector of the transistor is connected to one end of capacitor C16, one end of capacitor C17 and pins 7, 18 and 15 of the remote module U7, the second end of capacitor C16 and the second end of capacitor C17 are both grounded, pin 19 of the remote module U7 is connected to one end of capacitor C18, the second end of capacitor C18 is grounded, pin 16 of the remote module U7 is connected to one end of resistor R8, and resistor R8 The second end of the inductor L3 is connected to the 17th and 20th pins of the remote module U7; the 13th pin of the remote module U7 is connected to one end of the inductor L2 and one end of the inductor L3, the second end of the inductor L2 is connected to one end of the capacitor C19, the second end of the capacitor C19 is connected to the antenna ANT and one end of the capacitor C20, and the second end of the capacitor C20 is grounded; the second end of the inductor L3 is connected to the 12th pin of the remote module U7 and one end of the inductor L4, the second end of the inductor L4 is connected to one end of the capacitor C21, one end of the capacitor C22 and the 11th pin of the remote module U7, and the second end of the inductor L4 is connected to the antenna ANT and one end of the capacitor C20. The second end of capacitor C21 and the second end of capacitor C22 are both grounded, pin 10 of the remote module U7 is commonly connected to one end of the crystal oscillator X2, one end of the resistor R9 and one end of the capacitor C23, pin 9 of the remote module U7 is commonly connected to the second end of the crystal oscillator X2, the second end of the resistor R9 and one end of the capacitor C24, the second end of the capacitor C23 and the second end of the capacitor C24 are both grounded; pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6 of the remote module U7 are respectively connected to the second microcontroller module circuit; pin 8 and pin 14 of the remote module U7 are commonly grounded.
7. The portable gas leak detector according to claim 1, characterized in that: The second power supply module circuit includes a power socket J1 and a diode D1, wherein pin 1 of the power socket J1 is connected to the anode of the diode D1 and the voltage acquisition module circuit, the cathode of the diode D1 is connected to the second microcontroller module circuit, and pin 2 of the power socket J1 is grounded.
8. The portable gas leak detector according to claim 1, characterized in that: The voltage acquisition module circuit includes a resistor R1, a resistor R2 and a capacitor C1, wherein one end of the resistor R1 is connected to the second power supply module circuit, the second end of the resistor R1 is connected to the second microcontroller module circuit, one end of the resistor R2 and one end of the capacitor C1, and the second end of the resistor R2 and the second end of the capacitor C1.
9. The portable gas leak detector according to claim 1, characterized in that: The Bluetooth module circuit includes a Bluetooth module U6, a transistor Q3, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, an inductor L2 and a crystal oscillator Y1; wherein, one end of the resistor R16 is connected to the power supply circuit, the second end of the resistor R16 is connected to the emitter of the transistor Q3, the base of the transistor Q3 is connected to one end of the resistor R17, one end of the resistor R17 is connected to the second microcontroller module circuit, the collector of the transistor Q3 is connected to pin 4, pin 7 and one end of the capacitor C14 of the Bluetooth module U6, the second end of the capacitor C14 is grounded, the pin 1 of the Bluetooth module U6 is connected to pin 1 of the crystal oscillator Y1 and one end of the capacitor C15, the second end of the capacitor C15 is grounded, and the Bluetooth module U6 is connected to the power supply circuit. Pin 2 of Bluetooth module U6 is connected to pin 3 of crystal oscillator Y1 and one end of capacitor C16, and the second end of capacitor C16 is grounded. Pin 5 of Bluetooth module U6 is connected to one end of inductor L2, and the second end of inductor L2 is connected to pin 6 of Bluetooth module U6 and one end of capacitor C13, and the second end of capacitor C13 is grounded; pin 9 of Bluetooth module U6 is connected to one end of resistor R19, and the second end of resistor R19 is connected to the second microcontroller module circuit; pin 10 of Bluetooth module U6 is connected to one end of resistor R18, and the second end of resistor R18 is connected to the second microcontroller module circuit; pin 15 of Bluetooth module U6 is connected to pin 1 of antenna BT_ANT1, and pin 2 of antenna BT_ANT1 is connected to pin 16 of Bluetooth module U6; pin 2 and pin 4 of crystal oscillator Y1 are both grounded.