Development Of City Lighting Controller Based On S3C44B0X

With the high pace of city modernization, city lighting engineering isdemanded increasingly higher. Traditional street lighting controller can only achievesimple manual control or timer switch, which has the disadvantages of high cost ofmanpower and resources, difficulty centralizing management, wasting electricalenergy, as well as low efficiency in troubleshooting. Therefore the design of publiclighting controller, which has the qualities of high degree of automation, functionreliable, saving energy, high efficient performance and convenient to maintenance,has become a developing trend.This paper focus on the research and design of city street lightingcontroller.The following items are discussed in the paper:Development and design the controller's core-circuit which is based on theapplication of S3C44BOX and EPM7128S. Resolve the problem of mixed-voltagesystem. Implement lights switch controlling port, AC parameters acquisition port,data bus expansion port etc.Design the peripheral circuit board for street lighting controller, which includesthe function of acquisition of AC parameters, switch control and DC digital inputparameter.In the part of software, the CPLD program is designed for the purpose ofincreasing the amount of ARM I/O resource. The acquisition AC parametersprogram, RTC alarm program, as well as Delay control program etc. are designed inthe paper.