Research And Design Of Monitoring And Control System Based On ARM And Zigbee

With the development of embedded technology, the traditional monitoring and control systemis replaced by the embedded remote monitoring and control system, the system include thetechnology of wireless, network and smart. ARM is a low power, high performance32bit RISCprocessor, which occupies a major position in the embedded field. ZigBee is low power, lowcomplexity and low cost, which suits the complex field. Therefore, the ARM and ZigBeetechnology into remote monitoring and control system has broad application prospects.The thesis includes：(1) Describe the overall design of the remote monitoring control system, design ZigBeewireless sensor networks, embedded Web Server on ARM Gateway, remote clients can access thegateway through Internet, the system achieve data collection and real-time control functions.(2) Design the hardware circuit of the monitoring node and aggregation node based on CC2530SoC. Build the gateway which has the Web Server function, based on ARM9and mini2440transplant the kernel, build the U-Boot and YAFFS2, completion of the construction of gateway’sLinux operating system.(3) Build the wireless sensor network ZigBee, analysis the Z-Stack’s frame and the networkbuilding’s process, design a tree network topology. Write the program of APP Layer and modify thecode of HAL Layer, MAC Layer and ZDO Layer. The ZigBee network use Modbus RTU, cancollect the data of electric current, voltage and relays, wireless communication with the aggregationnode, the data reported to the Web Server, the monitoring nodes can response to data inquire andreal-time control order, control the output of the relay and voltage.(4) Transplant the Boa and SQLite3to gateway, so it is also a Web Server. Design userinterface, write CGI and Program Process the data of wireless sensor network and the request ofclient, realize information analyse, data store, data inquire and control of the field.Finally, testing of embedded remote monitoring and control system, the results show the datacollection and real-time control, the wireless communication functions of the wireless sensornetwork, the data processing performance of gateway meet the design requirements.