基于S变换的活体触电保护研究

Research on Electric Shock Protection Based on S-Transform

通过直接接触电击的方法,搭建试验电路,采集多组活体触电数据并进行分析。从S变换的时频特征和能量变化两个不同的角度,提取4个特征量来分析触电电流信号和非触电电流信号两者的区别。通过特征量阈值的合理选定,可以提高触电保护判断的可靠性,从而实现人身防护。

Through the method of direct contact with electric shock,the expriment circuit was built,and multiple groups of live electric shock datas were collected and analyzed.From time-frequency characteristics of S-transform and energy change,four characteristics were extracted to analyze the difference between electric shock current and non-electric shock current.The reasonable selection of characteristics thresholds can improve the reliability of electric shock protection judgment,thus realizing personal protection.