基于Ethernet的低压电力线载波阻抗自动化测试系统

研究了DZ3低压电力线载波阻抗自动化测试系统。阻抗测试终端在原有的USB、GPRS测试方式下添加了Ethernet测试方法。终端硬件部分增添了Ethernet转串口功能模块,软件部分修改了原有的串口收发数据与命令的程序及相关数据处理函数。对修改程序后的阻抗测试终端的命令接收与发送进行了调测,并在调测后使用标准阻抗测试盒,通过主站向终端发送控制命令和读取终端测试所得的数据包来验证终端阻抗测试的准确性。实验表明,测试结果均在误差范围之内。

Research of low-voltage power line carrier wave impedance ATS based on Ethernet technology

The DZ3 Low-voltage power line carrier wave impedance ATS can divide into host and terminal two parts.The system increased the way of Ethernet based on the original communication modes of USB,GPRS and Ethernet turn a serial port function module,made the impedance automatic testing more convenient.Software is modified by the original serial sending and receiving data,command of the procedures and other relevant data processing function.To debug the command of the terminal receive and send after modifying,and using the standard Impedance testing cassette,Through the host send commands to the terminal and read receiving data packet by terminal to verify the terminal impedance ’ s accuracy of the test.By experiment,the test results are within the range of the sampling error.