这是一篇分析rs485信号波形的文档，其中的图片是从示波器上截下来的。通信协议使用的pelco_d。-This is an analysis of the document rs485 signal waveform, in which the picture is cut off from the oscilloscope. Communication protocol used pelco_d.

通过串口采集电能数据并分析波形因数，采用逐点积分形势变换交流波形(Collecting power data through serial port and analyzing the waveform factor)