Domestic fuel gas alarm system

Abstract

The invention relates to a domestic fuel gas alarm system. The domestic fuel gas alarm system comprises a fuel gas sensor, an amplifying circuit, a single-chip computer, an audible and visual alarm, an electric valve, a radio frequency module, a gateway switcher, a server and a GSM module. A voltage signal generated by the fuel gas sensor is amplified through the amplifying circuit and is then input to the single-chip computer. The audible and visual alarm and the electric valve are respectively connected with an output port of the single-chip computer. A BENQM22 module serves as the GSM module. A PIC16F873A chip serves as the single-chip computer. The radio frequency module is connected to an output port of the single-chip computer. A WGT-2420Z-W type gateway switcher based on ZigBee and Wifi serves as the gateway switcher. The output port of the gateway switcher is connected to the server connected with the GSM module. The domestic fuel gas alarm system is reasonable in structure, stable in working performance, long in service life, low in production cost and capable of keeping family members informed of domestic fuel gas leakage before hand and preventing the domestic fuel gas leakage before hand through preventive measures.

Description

technical field [0001] The invention relates to a gas alarm device, in particular to a household gas alarm system. Background technique [0002] Coal gas, natural gas and other gases are more and more common in households, and poisoning and death accidents and fires caused by improper use of gas leakage often occur; at present, many families have installed gas alarms, which will send out an alarm once the gas leaks , but the function of the alarm used now is single, and after the gas leakage is found, the main gas switch cannot be automatically closed; if the head of the household is not at home, the head of the household cannot be notified in time, which is very dangerous. [0003] Although the new household gas alarm with the patent No. 200920279604.9 can detect gas leakage, it can send an audible and visual alarm prompt through the audible and visual alarm, and it can also send the gas leakage situation to the mobile phone of the householder by text message through the GS...

AI Technical Summary

Problems solved by technology

[0002] Coal gas, natural gas and other gases are more and more common in households, and poisoning and death accidents and fires caused by improper use of gas leakage often occur; at present, many families have installed gas alarms, which will send out an alarm once the gas leaks , but the function of the alarm currently used is single. After a gas leak is found, the main gas switch cannot be automatically turned off; if the head of the household is not at home, the head of the household cannot be notified in time, which is very dangerous

[0003] Although the new household gas alarm with the patent No. 200920279604.9 can detect gas leakage, it can send an audible and visual alarm prompt through the audible and visual alarm, and it can also send the gas leakage situation to the mobile phone of the householder by text message through the GSM module, but the GSM For the transmission module, each user needs to use a mobile phone card, which takes up a lot of resources in the number segment, and the user's use cost is also high, resulting in a waste of resources

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