Research And Development Of Intelligent Switch Based On Power Line Carrier

With the development of science and technology,the continuous improvement of people's living standards,intelligent electrical equipment has been popular to the ordinary people of the family,to bring great convenience to people's lives.Intelligent home integration of advanced computer technology,carrier communication technology,wireless communication technology,network technology,it will be home life and intelligent combination of organic equipment together.Make people's lives more comfortable,efficient and convenient.The smart switch is the core of intelligent home parts,this topic starts from the actual needs of the family,research and design a power line carrier smart switch based on power line,able to carry out remote real-time monitoring of household appliances.The hardware design,choose powerful,configuration complete,low-power CMOS integrated chip PL3106 as the master chip,the microcontroller embedded spread spectrum communication modem circuit,simplifies the design of peripheral circuits,cut costs.Using low-power switching power supply as a power supply system,its small size,high conversion efficiency.The relay switch uses a magnetic hold relay,which can keep the switch closed or disconnected in the event of a coil power failure,saving energy,improve the overall cost of the system.Power-down detection circuit can quickly detect whether the power grid is powered down.So that the system in the power grid,even if the disconnect relay switch,the effective use of household appliances to avoid the work of electricity caused by a great waste of electricity.Touch the button instead of the traditional mechanical keys to achieve the terminal equipment of the standard operation,off-site operation,nice,durable,convenient and practical.The infrared reception function is a terminal panel extension,through the remote infrared remote control to achieve the terminal of the standard operation,remote operation,infrared receiver module with integrated receiver probe HS0038,simplified hardware design,reduce costs.The use of wide coverage,efficient,low-costpower line carrier communication between the terminal equipment to achieve data transmission,built a real-time intelligent switch monitoring system,real-time display of household appliances working status,to ensure the safe and stable operation of electrical appliances.The system uses hardware anti-jamming measures,improve the anti-jamming performance,enhance the stability of the system.The software programming,independently built an embedded real-time multi-tasking operating system,can be based on the priority of different tasks reasonable scheduling CPU time.The system uses modular programming ideas,no delay,no loop waiting in the module,the whole is zero,the corresponding function module is executed by the corresponding function function scheduling flag.Simplify multitasking,program structure is clear,no need to wait,real-time strong.According to the system hardware and software design,Produced a prototype;Prototype in the simulation of the working environment,conducted a test;Analysis of experimental data to obtain the test results show that:This project is designed based on the power line carrier intelligent switch function to meet the design requirements,stable and reliable operation and real-time.