Design And Implementation Of Embedded Handheld Terminal Based On FTU

In recent years, with the rapidly development of electric power industry, the scale of electric power system expands unceasingly, and along with the development of national living level, people on the requirements for power supply quality become more higher, named the realization of power distribution automatically, and as an important part of power distribution automation system, the feeder automation can monitor the operation mode of feeder, and its remote terminal FTU is the main process unit, which can monitor its device in the distribution system to get the fault information, realize the isolation, protect the circuit, and quickly restore power. But FTU is installed scattered on the electric bitt, leads to inconvenience for site people during debugging and maintenance of FTU, so this paper is based on embedded technology to design and implement FTU handheld monitoring device.Firstly, this paper based on the requirement analysis of FTU handheld monitoring device, that’s the data view, parameter setting, the event log and operational tasks, put forward the overall framework of FTU handheld monitoring terminal, Secondly, based on the 32-bit chip(STM32F103ZET6ARM) processor of ARM Cortex-M3 series,the core of the hardware circuit, including the clock circuit, storage circuit, JTAG interface circuit, reset circuit, TFT-LCD touch screen, power supply circuit, USB interface circuit and serial port interface and CC2530 wireless module. Then on the basis of the hardware circuit design, using the embedded operating system μC/OS-II to design software, According to IEC60870-5-101 power specifications, complete multi-threaded tasks, including communication module configuration tasks, data reception tasks, data sending task, front-end application tasks, implement the feeder terminal FTU telemetry, remote communication and the device parameters and the view of communication information, modify the parameters of device running and of protection setting configuration and reclosing related parameters, to realize record operation information and fault information by remote operation.After completion of the whole design, FTU handheld terminal functions were tested, such as the data view, parameter modification, event record, remote control operation etc,the test results show that the FTU handheld monitoring terminal can implement the above features, accord with the anticipated target, and has certain application value.