Research Of The Remote Control System For Lighting Based On FPGA

If the light intensity is not enough, the station lighting system would ensure visitors’ security, but there are many deficiencies in these aspects such as in energy, security, and control and so on. Most of the railway station also keep the traditional way, manual control, infrared light control, clock control to control the lighting. In addition, poor information management can neither save energy nor ensure the troubleshooting efficiency. Modern train station work environment has become increasingly complex, security operations management of lighting equipment require the degree of automation control and intelligence to get higher and higher. The traditional lighting control system has been unable to meet the needs of social development. Therefore, the establishment of a high level, high transparency management system for the lighting equipments has become an inevitable trend and development direction.Today, computer technology, electronics technology, sensor technology and communicate-ons technology develop continually. Using these technologies, establishing an advanced system for the control and management, to relize the unified monitoring, monitoring and metering of electricity, etc., of the Lighting equipment, this will solve the problem of traditional lighting control system well. This study combines GPRS wireless communication technology to build a small LAN and establish a remote control system based on B/S (Browser/Sever) architecture.In order to control and manage the system conveniently, the system use four structural design, including user control center, communicate on networks, terminal controller and sensor networks. In thr user center, users can remote control these lighting equipments and obtain real-time status information through the PC with the GPRS. The terminal uses FPGA (Field Programmable Gate Array) as a terminal controller processing unit, based on the strong logic control and fast data processing ability of FPGA, realize Controling the bright lights on or off of the lighting device and changing lighting solution; measureing voltage and current of each lighting branch and se-nding an alarm signal when the voltage or current exceeds the limit; controling the PWM (pulse width modulation) with the PID algorithm for dimming; controling the GPRS module, Zigbee module for remote communication through the serial port. The processor transplant uC/OS-Ⅱ operating system to schedule multiple tasks. In addition, FPGA embedded in the database which can store the data in classification for users to query and modify. Sensor networks uses integrated Zigbee network module to control illumination, then finish data acquisition and send the data to the terminal processor. Layers of the system will complete the monitoring task by top-down hierarchical cooperation.