Abstract
With the social development, gas has been widely applied to various aspects of social life. However, the combustible gas has brought us great convenience, but also there is a considerable risk. Based on this, we designed a kind of "prevention" as the characteristics of the combustible gas automatic detection and alarm systems. The system is the choice of technology is mature and low-cost entry-level 52 series microcontroller as the control center, the whole system is divided into classification sensor detection, alarm distinguishes between sound and light alarm, force control bodies of three parts. The system will detect concentrations of flammable gases, scientific classification, for different grades of police intelligence, the appropriate device driver to send a loud sound and light alarm signal. When you reach the highest level but no one to lift the danger, the system will automatically cut off the gas supply to open the ventilation exhaust and other devices to prevent the occurrence of major accidents, to achieve "prevention first, combining prevention and control" of the human and automatic alarm control system. The automatic alarm control system available in the field of gas alarm has been widely used, it has certain extensibility, compatibility, and stability.
Highlights
With the improvement of people's living standards, most families have adopted gas life, and more and more people have higher requirements for the safety and comfort of living space
When you reach the highest level but no one to lift the danger, the system will automatically cut off the gas supply to open the ventilation exhaust and other devices to prevent the occurrence of major accidents [7], to achieve "prevention first, combining prevention and control" of the human and automatic alarm control system
The goal of this system design is to design a kind of alarm system for combustible gas detection, which is characterized by scientific classification and humanization
Summary
With the improvement of people's living standards, most families have adopted gas life, and more and more people have higher requirements for the safety and comfort of living space. When you reach the highest level but no one to lift the danger, the system will automatically cut off the gas supply to open the ventilation exhaust and other devices to prevent the occurrence of major accidents [7], to achieve "prevention first, combining prevention and control" of the human and automatic alarm control system. 2. System Design a) Basic requirements: it can realize real-time detection of the concentration of combustible gas in the surrounding environment, automatically conduct humanized alarm at three levels in case of danger, and force an automatic shutdown of the gas switch and opening of exhaust fan at the highest level. B) Extension: it can be sent and received wirelessly at a long-distance or controlled by automatic SMS or phone call, to achieve a higher degree of humanized control It can be used for product upgrades. Scheme 2, the control part of the use of cost-effective 89S52 single-chip microcomputer control, can achieve a stable system design and can make the production cost control in a shallow range, so the use of scheme 2
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