Combustible gas alarm based on Bluetooth relay wired networking

Abstract

The utility model belongs to the technical field of gas safety, and particularly relates to a Bluetooth relay wired networking combustible gas alarm, which is characterized by comprising a single chip microcomputer, a Bluetooth communication circuit, an amplifying circuit, a driving circuit and a power supply circuit, and the single chip microcomputer is respectively connected with the Bluetooth communication circuit, the amplifying circuit, the driving circuit and the power supply circuit; the Bluetooth communication circuit is in wireless communication with the infrared camera; the amplifying circuit is connected with the gas detection sensor; the drive circuit is connected with the relay switch circuits, and output ports of the relay switch circuits are connected with an I / O port of the intelligent terminal to achieve wired networking. The system has the advantages that multiple paths of infrared camera signals are acquired through Bluetooth communication, so that too many cables do not need to be arranged on site, the system is not influenced by on-site installation positions, and the installation is flexible and convenient; multiple paths of danger signals and gas detection sensor signals of the alarm are sent to an upper intelligent terminal together in a wired mode, and safety management of gas is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas safety, and in particular relates to a combustible gas alarm with a Bluetooth relay wired network. Background Art

[0002] LPG (liquefied petroleum gas) is a mixture of propane and butane, often accompanied by small amounts of propylene and butene. LPG is a mixture of petroleum and natural gas under appropriate pressure, existing as a liquid at room temperature. In gas storage and usage areas, monitoring on-site gas concentrations and issuing alarms when they reach set warning levels is a common industry practice, enabling managers to promptly identify and eliminate fire hazards.

[0003] Chinese utility model patent application number 202022662630.9 discloses an alarm self-test control circuit and alarm. The alarm self-test control circuit includes: a main control module, a power module, a gas sensor module, an infrared detection module, a buzzer driver module, and an LED indicator module. The main control module, gas sensor module, infrared detection module, buzzer driver module, and LED indicator module are each electrically connected to the power module; the infrared detection module and buzzer driver module are each electrically connected to the main control module; the gas sensor module is electrically connected to the main control module, and the LED indicator module is electrically connected to the main control module. This solution cannot realize the networking of multiple alarms and has limited application.

[0004] Chinese utility model patent application number 202123256191.2 discloses a gas leak alarm system, comprising: an inlet gas valve, located outdoors; a valve body main controller, a normally open solenoid valve, and a signal receiving module, each electrically connected to the valve body main controller; the normally open solenoid valve's air inlet connected to a gas supply terminal, and its air outlet connected to a gas appliance; a gas leak alarm, located indoors; a gas leak alarm, comprising an alarm main controller, a signal transmitting module, a gas sensor, and a Wi-Fi module, each electrically connected to the alarm main controller; a signal transmitting module communicatively connected to the signal receiving module; and a user terminal, which is the first networked device on the user's person. This gas leak alarm system can effectively and promptly detect gas leaks, thereby shutting down the relevant gas pipeline, ensuring gas safety and reducing the occurrence of safety accidents. This solution uses Wi-Fi wireless networking, which can cause signal leakage when the signal is poor, posing a safety hazard. Utility Model Content

[0005] The purpose of this utility model is to provide a combustible gas alarm with Bluetooth relay wired networking, which overcomes the shortcomings of the existing technology. It can collect multiple danger signals through Bluetooth communication, does not require too many cables to be laid on site, and is flexible and convenient to install. The multiple danger signals are sent to the upper intelligent terminal together with the gas detection sensor signal of the alarm itself in a wired form. The upper intelligent terminal completes the connection of the corresponding actuator and remotely communicates the data with the system platform to realize the safe management of gas.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A combustible gas alarm with Bluetooth relay and wired networking includes a single-chip microcomputer, a Bluetooth communication circuit, an amplifying circuit, a driving circuit and a power supply circuit, wherein the single-chip microcomputer is respectively connected to the Bluetooth communication circuit, the amplifying circuit, the driving circuit and the power supply circuit; the Bluetooth communication circuit communicates with an infrared camera via wireless communication; the amplifying circuit is connected to a gas detection sensor; the driving circuit is connected to a relay switching circuit; and the output port of the multi-channel relay switching circuit is connected to the I / O port of an intelligent terminal to realize wired networking.

[0008] Preferably, the main chip of the single chip microcomputer is STC8H1K08T-33I-TSSOP20.

[0009] Preferably, the main chip of the Bluetooth communication circuit is TL8960L.

[0010] Preferably, the infrared camera is a fire monitoring alarm camera with Bluetooth communication function.

[0011] Preferably, the main chip of the driving circuit is ULN2003ADR; the main chip of the relay switch circuit is SIP-1A12.

[0012] Preferably, the main chip of the amplifier circuit is TLC3702IDR; the main chip of the gas detection sensor is MQ-5.

[0013] Preferably, the main chips of the power supply circuit are LM1117S-3.3 and HX1509D-5.0RG.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1) The utility model collects multiple danger signals (infrared cameras) through wireless communication channels via Bluetooth communication, eliminating the need to lay too many cables on site and being unaffected by the on-site installation location, making installation flexible and convenient. The combined application of Bluetooth wireless communication and wired networks can solve the problem of being unable to lay cables in complex environments on site.

[0016] 2) Multiple danger signals are sent to the upper intelligent terminal together with the gas detection sensor signal of the alarm itself through wired form. The upper intelligent terminal completes the control of the corresponding actuator and communicates the data with the system platform remotely to achieve safe management of gas. It can be bridged or form a star network to increase the flexibility and convenience of communication with multiple devices.

[0017] 3) The combustible gas alarm is connected to the upper intelligent terminal using a six-pin socket P5, which has the advantages of fast replacement and convenient interchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic block diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the CPU pins of the single-chip microcomputer in the embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the Bluetooth communication circuit structure in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the gas signal processing circuit in the embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the circuit structure of the gas detection sensor in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the power supply circuit structure in an embodiment of the present utility model;

[0024] Figure 7 It is a schematic diagram of the driving circuit structure in an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] The technical solutions of the present invention will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the specific embodiments required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some implementation methods of the utility model. For ordinary technicians in this field, other specific embodiments can be obtained based on these specific embodiments without paying creative work.

[0027] The components of the embodiments of the present invention generally described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but rather represents only selected embodiments of the present invention.

[0028] See Figure 1-7 , is a schematic structural diagram of an embodiment of a Bluetooth relay wired networking combustible gas alarm of the utility model, which includes a single-chip microcomputer, a Bluetooth communication circuit, an amplifying circuit, a driving circuit and a power supply circuit. The single-chip microcomputer is respectively connected to the Bluetooth communication circuit, the amplifying circuit, the driving circuit and the power supply circuit; the Bluetooth communication circuit is connected to the infrared camera; the amplifying circuit is connected to the gas detection sensor; the driving circuit is connected to the relay switch circuit, and the output port of the multi-channel relay switch circuit is connected to the I / O port of the smart terminal to realize wired networking.

[0029] In this embodiment, the microcontroller's main chip is an STC8H1K08T-33I-TSSOP20 chip. It detects gas concentration in the gas sensor. If the alarm concentration is reached, the K1 relay switch circuit outputs an alarm. It also receives alarm information from the infrared camera via Bluetooth wireless communication, which is output by the K2 relay switch circuit. It also connects and exchanges data with external terminal devices via Bluetooth wireless communication. The main chip in the Bluetooth communication circuit is a TL8960L. The Bluetooth communication circuit, comprised of the TL8960L, receives information from fire monitoring and alarm cameras with Bluetooth communication capabilities and connects and exchanges data with external terminal devices. The infrared camera is a fire monitoring and alarm camera with Bluetooth communication capabilities. The main chip in the driver circuit is a Darlington driver chip ULN2003ADR. The P4 interface is a programming interface. The driver circuit controls the alarm output relay to output alarm signals and drives the light indicator and alarm indicator via the P2 interface. The main chip in the relay switch circuit is a SIP-1A12. The main chip in the amplifier circuit is a TLC3702IDR. The main chip in the gas detection sensor is an MQ-5. The TLC3702IDR voltage comparator in the amplifier circuit and the MQ-5 gas detection sensor form the ambient combustible gas concentration acquisition circuit, which outputs the gas signal processing circuit (TLC3702IDR analog comparator chip) to the microcontroller. The power supply circuit's main chips are the LM1117S-3.3 and HX1509D-5.0RG, providing three voltages: a 12V driver output voltage; a 5V gas sensor operating voltage; and a central processing circuit CPU operating voltage. Interface P5 connects the input power supply and the I / O port of the smart terminal, enabling wired networking.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combustible gas alarm with Bluetooth relay wired networking, characterized in that: The system includes a single-chip microcomputer, a Bluetooth communication circuit, an amplifying circuit, a driving circuit and a power supply circuit. The single-chip microcomputer is respectively connected to the Bluetooth communication circuit, the amplifying circuit, the driving circuit and the power supply circuit; the Bluetooth communication circuit communicates with the infrared camera through wireless communication; the amplifying circuit is connected to the gas detection sensor; the driving circuit is connected to the relay switching circuit, and the output port of the multi-way relay switching circuit is connected to the I / O port of the intelligent terminal to realize wired networking.

2. A combustible gas alarm with Bluetooth relay wired networking according to claim 1, characterized in that: The main chip of the single chip microcomputer is STC8H1K08T-33I-TSSOP20.

3. The combustible gas alarm with Bluetooth relay wired networking according to claim 1 is characterized in that: The main chip of the Bluetooth communication circuit is TL8960L.

4. A combustible gas alarm with Bluetooth relay wired networking according to claim 1, characterized in that: The infrared camera is a fire monitoring alarm camera with Bluetooth communication function.

5. The combustible gas alarm with Bluetooth relay wired networking according to claim 1, characterized in that: The main chip of the driving circuit is ULN2003ADR; the main chip of the relay switch circuit is SIP-1A12.

6. The combustible gas alarm with Bluetooth relay wired networking according to claim 1, characterized in that: The main chip of the amplifier circuit is TLC3702IDR; the main chip of the gas detection sensor is MQ-5.

7. The combustible gas alarm with Bluetooth relay wired networking according to claim 1, characterized in that: The main chips of the power supply circuit are LM1117S-3.3 and HX1509D-5.0RG.

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