An apparatus and method for measuring position information of the power line

The present invention discloses a power line position information measuring apparatus and method, comprising a sensor array, the receiver unit, the master computing unit, the communication interface unit, modulating the excitation signal generating means; excitation modulation signal generation unit generating a sensor array of a frequency fex modulated sinusoidal excitation signal, sensor array excitation by a sinusoidal modulation signal and the external magnetic field superimposed on the excitation signal is acquired, the receiver unit of the sensor array output signal conditioning and sampling the sampling data into the master electromagnetic inverse calculation unit performs calculation work, and ultimately sent to the power line communication interface unit sends the location information. The present invention can be obtained more accurate power line dimensional position information by an electromagnetic field model inversion, with high precision, easy installation and maintenance advantages; better able to avoid large mechanical equipment power line formed external damage, reducing the trip, injuries and equipment damage so as to ensure reliability of power supply lines.