基于当导线中有电流流过时导线周围产生交变电场的原理,采用自制场效应传感器检测通电电缆走向并确定位置,感应到交变电场信号时,启动低频压控振荡电路,使二级管发光,蜂鸣器发出响声,声光报警。系统以ATMAGE16作为信号处理的核心,使用两个超声波测距传感器通过测距离确定电缆位置,通过软件编程的方法确定具体坐标,并能在LCD液晶屏上显示,通过按键设置回放标记的电缆坐标的标记,经实验测试,性能良好。 Based on the principle that an alternating electric field is generated around the wire when a current flows in the wire, a home-made field effect sensor is used to detect the direction of the power cable and determine the position. When the alternating electric field signal is sensed, the low-frequency voltage-controlled oscillation circuit is started and the diode emits light , Buzzer sound, sound and light alarm. The system uses ATMAGE16 as the core of signal processing. Two ultrasonic ranging sensors are used to determine the cable position by distance measurement. The specific coordinates can be determined by software programming and can be displayed on the LCD screen. The key coordinates of cable markers Marked, the experimental test, good performance.