CN205375763U

CN205375763U - Coal gas detects and early warning system

Info

Publication number: CN205375763U
Application number: CN201521110072.8U
Authority: CN
Inventors: 王瑛; 吴佳男
Original assignee: Harbin Hengyu Mingxiang Technology Co Ltd
Current assignee: Harbin Hengyu Mingxiang Technology Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-07-06
Anticipated expiration: 2025-12-29

Abstract

(B, ) the utility model discloses a (B, ) (b) coal gas detects and early warning system, including single -chip computer control module, the gas sensor module, AD converter module, the operational amplifier module, the acousto -optic warning module, the charactron display module, the scavenger fan module, its characterized in that: single -chip computer control module connects gas sensor module, AD converter module, operational amplifier module, acousto -optic warning module, charactron display module, scavenger fan module respectively, digital pipe display is connected to the charactron display module, the acousto -optic warning ware is connected to the acousto -optic warning module, the gas sensor module is passed through AD converter module and is connected the sensor, scavenger fan and valve are connected to the scavenger fan module. The utility model discloses in, MQ -5 has comparatively outstanding interference killing feature and very fast to screen gaseous respond for other sensors, there are the reliable stable characteristics of long service life and operation, test circuit is fairly simple. (B, )

Description

A kind of coal gas detection and early warning system

Technical field

This utility model relates to a kind of detection and early warning system, especially relates to a kind of coal gas detection and early warning system.

Background technology

In the modern society that economy develops rapidly, the living standard of oneself, animation, living environment are had higher requirement by people, and in family, the especially indoor daily gas safety of the security context in room is then more exposed to pay attention to.Within 2003, the Chinese government promulgates file, point out that health of people situation will be produced serious negative effect by indoor pollution, cause various circles of society's extensive concern to indoor gas safety problem, also give the production firm of each indoor gas safety verification detecting instrument with huge business opportunity and good development environment.In the past, most of families are all without the standard security means processing gas leakage, and the best family of safety consciousness also just accomplishes that every day check valve is it is known that if it occur that leakage to be accomplished not electricity consumption, not strike sparks, and ventilation etc. of windowing prepares fire extinguisher at most more at home.But when leakage accident really occurs, a lot of people cannot cool down, and even can habitually turn on light, warning etc. of making a phone call, and causes catastrophic consequence.One of security guard that visible gas leak detector is prevented trouble before it happens as home-use gas, has very important status.

Utility model content

The purpose of this utility model is in that to provide a kind of respond having outstanding capacity of resisting disturbance and screening gas faster；There are the detection of a kind of coal gas and the early warning system of long service life and reliable stable feature.

This utility model is achieved through the following technical solutions: a kind of coal gas detection and early warning system, including single chip control module, gas sensor module, A/D converter module, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module, it is characterised in that: described single chip control module connects gas sensor module, A/D converter module respectively, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module；Described numeral method module connects numeral method device；Described sound and light alarm module connects audible-visual annunciator；Described gas sensor module connects sensor by A/D converter module；Described ventilation fan module connects ventilation fan and valve.

Single chip control module described in the utility model adopts AT89S52 single-chip microcomputer.

Sensor described in the utility model adopts quasiconductor gas security MQ-5.

Operation principle of the present utility model: this utility model adopts AT89S52 single-chip microcomputer to be the control core of system, surrounding environmental gases information is gathered with quasiconductor gas security MQ-5, the analogue signal collected is carried out analog/digital conversion by A/D converter, transfers to single-chip microcomputer to process the digital quantity after conversion.Then single-chip microcomputer is according to parts such as the output control charactron numerical monitor obtained, valve, fans.System passes through sensing acquisition combustable gas concentration parameter value, and the marginal value set in advance in a series of process, the result obtained the most at last and single-chip microcomputer compares.If concentration is higher than setting threshold value, then starting fan and change indoor hazardous gas concentration, close fuel gas safety valve, start sound light alarming circuit, and show room gas concentration change in real time, waiting house-owner finally processes.

The beneficial effects of the utility model are in that:

In this utility model, MQ-5 has comparatively outstanding capacity of resisting disturbance and screens the respond of gas faster relative to other sensors；There are long service life and reliable stable feature；Test circuit is fairly simple.

Accompanying drawing illustrates:

Fig. 1 is system architecture diagram of the present utility model.

Fig. 2 is system module connection figure of the present utility model.

Fig. 3 is system overall program flow diagram of the present utility model.

Detailed description of the invention:

Below in conjunction with Figure of description, the utility model is described in further detail:

Embodiment 1

A kind of coal gas detection and early warning system, including single chip control module, gas sensor module, A/D converter module, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module, it is characterised in that: described single chip control module connects gas sensor module, A/D converter module respectively, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module；Described numeral method module connects numeral method device；Described sound and light alarm module connects audible-visual annunciator；Described gas sensor module connects sensor by A/D converter module；Described ventilation fan module connects ventilation fan and valve.

Embodiment 2

Claims

1. coal gas detection and an early warning system, including single chip control module, gas sensor module, A/D converter module, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module, it is characterised in that: described single chip control module connects gas sensor module, A/D converter module respectively, operational amplifier module, sound and light alarm module, numeral method module, ventilation fan module；Described numeral method module connects numeral method device；Described sound and light alarm module connects audible-visual annunciator；Described gas sensor module connects sensor by A/D converter module；Described ventilation fan module connects ventilation fan and valve.

2. a kind of coal gas detection according to claim 1 and early warning system, it is characterised in that: described single chip control module adopts AT89S52 single-chip microcomputer.

3. a kind of coal gas detection according to claim 1 and early warning system, it is characterised in that: described sensor adopts quasiconductor gas security MQ-5.