Now China's per capita electricity consumption is increasing substantially, along with the economic development, and the numbers of electric fire is increasing quickly, which has caused huge losses to people's life and their property. In our country's low-voltage distribution system, electrical laekage of electrical lines and short circuit are major reasons for electric fire, which is the main of fires,we should pay more attention to it. So it's urgent to study on alarm monitoring system for the elcetrical leakage.In this paper, studying on fire alarm monitoring system for the elcetrical leakage and remote control is the mainly work, after slave machines finish the acquisition of leakage current and load current and voltage,then determine the fault, the system can achieve functions of alarm and trip and enable them to achieve better monitoring and detection of electrical fires.Using PIC16F877 microcontroller as the core structure of system, and completing the design of hadware of master annd slave machine, completing the anti-jamming design of software and hardware. Using C language to complete functions of corresponding soft section. Using RS-485 communication technology to connect master and slaver machine, achieving transmission of information to master machine,and receiving control commands of master machine,and then completing development work of alarm monitoring system for the elcetrical leakage and remote control.As master machine, SMS system can control salve machine-firealarm monitor, that is, to achieve remote control function, SMS sending section use Siemens TC35i module, it can send alarm information to monitoring officer in time, and eliminating fire hazard in time.The research of fire alarm monitoring system can enhance intelligent level, improving product performance, it will have some effect to narrow the gap of products between China and abroad, and it will enhance the market competitiveness of products. |