Patent ID: 8599029

Claim:
An electrical circuit identification device, comprising: a signal generator directly connected to an AC power socket and a signal receiver set on an area arranged with a plurality of main power switches in a power control panel; wherein the signal generator includes a power plug, a half-sine pulse generation module, an interval power off and on module, and a signal transmitting module, and produces half-sine waves and off-and-on waves; wherein the signal receiver includes a signal sensor having an output circuit connected to both a control voltage divider and a signal strength switch for two-stage signal amplification, a signal integration module electrically being connected to the output circuit of the signal strength switch for receiving half-sine wave signals and output a set of digital signals with discontinuous square waves, a microcontroller having an identification system with a firmware and being connected to the output circuit of the signal integration module for cross checking the digital signals output from the signal integration module, an indicator light module being connected to the microcontroller and having a plurality of indicator lights arranged vertically into a row, wherein only one of the indicator lights is lit up during the detection, the higher the position of the indicator light lit up, the higher the accuracy of the position of the cable or main power switch.