CN205486677U

CN205486677U - Combustible gas leakage alarm device based on AT89S52 singlechip

Info

Publication number: CN205486677U
Application number: CN201620263737.7U
Authority: CN
Inventors: 潘长宁; 钟春良; 戴圣伟; 李志斌; 叶孔; 向治臣; 李明
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2016-04-01
Filing date: 2016-04-01
Publication date: 2016-08-17
Anticipated expiration: 2026-04-01

Abstract

The utility model provides a combustible gas leakage alarm device based on AT89S52 singlechip mainly includes the minimum system of AT89S52 singlechip, gas sensor module, AD conversion module, display module, acousto -optic warning module and electromagnetic valves control module, turn into the analog electrical signal through the gas sensor module with combustible gas concentration, and the processing turns into digital electric signal in sending the analog electrical signal to AD conversion module, digital electric signal after will changeing sends into the minimum system of AT89S52 singlechip and carries out signal processing, the minimum system of AT89S52 singlechip carries out corresponding function according to signal control acousto -optic warning module after handling and electromagnetic valves module, the simultaneous control display module shows combustible gas's concentration in real time.

Description

A kind of Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer

Technical field

This utility model relates to a kind of Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer, relates generally to detection and warning to Combustible Gas Leak in the place such as family and commercial production.

Background technology

The normal contents of air is critically important to human body, imflammable gas conventional in daily life is mainly coal gas and natural gas, carbon monoxide in the coal gas easily hemoglobin in human body is combined and causes poisoning, during poisoning, patient's initial feel is dizzy, weakness, when recognizing poisoning, most patients can take out rapidly convulsion, stupor, such as treatment not in time, and may be dead because of respiration inhibition；And natural gas main component is alkane, wherein methane content is more than 95%, the oxygen of about 20% in air, for indoor such closing space, oxygen is thin, and people can be not enough because of oxygen, causes suffocating, going into a coma, there is the people of cardiovascular and cerebrovascular disease will threat to life, and natural gas is colorless and odorless, people is difficult to perceive, especially when people is in sleep state, the leakage of natural gas is the most dangerous, and people even can be made to suffocate；Another danger of coal gas and natural gas is when the content in air reaches to a certain degree, run into naked light and will produce blast, jeopardize the life of people, in order to prevent the generation of this type of accident, keeping social harmony stable, development Combustible Gas Leak alarm apparatus becomes a kind of trend.

Summary of the invention

A kind of Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer, mainly includes AT89S52 single-chip minimum system, gas sensor module, AD conversion module, display module, sound and light alarm module and electromagnetic valve control module；It is characterized in that utilizing gas sensor module that imflammable gas concentration is converted into analog electrical signal, and utilize AD conversion module that analog electrical signal is converted to digital electric signal, by the data process of single-chip microcomputer numeral method imflammable gas concentration, judge whether imflammable gas concentration exceeds standard simultaneously, if exceeding standard, controlling sound and light alarm module and sending alarm, and drive electromagnetic valve to be closed by gas piping, if not exceeding standard, controlling sound and light alarm module and electromagnetic valve control module is failure to actuate.

Accompanying drawing explanation

Fig. 1 is this utility model entire block diagram；

Fig. 2 is this utility model AT89S52 single-chip minimum system figure；

Fig. 3 is this utility model gas sensor module figure；

Fig. 4 is this utility model AD conversion module figure；

Fig. 5 is this utility model display module figure；

Fig. 6 is this utility model sound and light alarm module map；

Fig. 7 is this utility model electromagnetic valve control module figure.

Detailed description of the invention

Fig. 1 is entire block diagram, a kind of Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer, mainly include AT89S52 single-chip minimum system, gas sensor module, AD conversion module, display module, sound and light alarm module and electromagnetic valve control module, gas sensor module is connected with AD conversion module, the analogue signal detected is sent into AD conversion module and processes；AD conversion module is connected with AT89S52 single-chip minimum system, is sent in AT89S52 single-chip minimum system by the digital electric signal after conversion and processes；AT89S52 single-chip minimum system is connected with display module, sound and light alarm module and electromagnetic valve control module respectively, and controls display module, sound and light alarm module and the electromagnetic valve control module corresponding function of execution according to the signal after processing.

Fig. 2 is AT89S52 single-chip minimum system figure, mainly includes reset circuit and crystal oscillating circuit, and reset circuit is mainly made up of button, resistance and electric capacity, push button, high level resets, and crystal oscillating circuit is mainly made up of crystal oscillator and electric capacity, provides operating frequency for AT89S52 single-chip minimum system.

Fig. 3 is gas sensor module figure, is mainly detected combustable gas concentration by gas sensor MQ-5, and combustable gas concentration is converted into the signal of telecommunication, processes in AD conversion module sends into AT89S52 single-chip minimum system.

Fig. 4 is AD conversion module figure, is mainly made up of ADC0809 modulus conversion chip, and the analog electrical signal for being detected by gas sensor module is converted into digital electric signal, and digital electric signal is sent into process in AT89S52 single-chip minimum system.

Fig. 5 is display module figure, is mainly made up of one 48 segment numeral pipes, for showing gas on-site concentration in real time.

Fig. 6 is sound and light alarm module map, is mainly made up of resistance, audion, LED and buzzer, controls buzzer and LED both end voltage by the break-make controlling audion, and then whether control buzzer and LED report to the police.

Fig. 7 is electromagnetic valve control module figure, is mainly made up of relay and valve on-off controller, is controlled the voltage at electromagnetic valve two ends by the break-make controlling relay, and then drives electromagnetic valve closed by inflammable gas pipeline or open.

Claims

1. a Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer, mainly includes AT89S52 single-chip minimum system, gas sensor module, AD conversion module, display module, sound and light alarm module and electromagnetic valve control module；It is characterized in that with AT89S52 single-chip microcomputer as control core, by gas sensor module, imflammable gas concentration is converted into analog electrical signal, and deliver to analog electrical signal AD conversion module processes be converted into digital electric signal, digital electric signal after converting is sent into AT89S52 single-chip minimum system and is carried out signal processing, AT89S52 single-chip minimum system controls sound and light alarm module according to the signal after processing and electromagnetic valve module performs corresponding function, controls display module simultaneously and shows the concentration of imflammable gas in real time.

A kind of Combustible Gas Leak alarm device based on AT89S52 single-chip microcomputer the most according to claim 1, it is characterized in that AT89S52 single-chip minimum system mainly includes reset circuit and crystal oscillating circuit, reset circuit is mainly made up of button, resistance and electric capacity, push button, high level resets, crystal oscillating circuit is mainly made up of crystal oscillator and electric capacity, provides operating frequency for AT89S52 single-chip minimum system；Gas sensor module is mainly detected combustable gas concentration by gas sensor MQ-5, combustable gas concentration is converted into the signal of telecommunication, and sends into process in AD conversion module；AD conversion module is mainly made up of ADC0809 modulus conversion chip, and the analog electrical signal for being detected by gas sensor module is converted into digital electric signal, and digital signal is sent into process in AT89S52 single-chip minimum system；Display module is mainly made up of one 48 segment numeral pipes, for showing gas on-site concentration in real time；Sound and light alarm module is mainly made up of resistance, audion, LED and buzzer, controls buzzer and LED both end voltage by the break-make controlling audion, and then whether control buzzer and LED report to the police；Electromagnetic valve control module is mainly made up of relay and valve on-off controller, is controlled the voltage at electromagnetic valve two ends by the break-make controlling relay, and then drives electromagnetic valve closed by inflammable gas pipeline or open.