Mining cable intelligence line selection device

The utility model provides a mining cable intelligence line selection device, including line concentration board, voltage comparater, monolithic ware, display, terminal on the line concentration board is connected with the check point of voltage comparater input electricity, and the voltage comparater output is connected with microcontroller type end electricity, and the singlechip output is connected with the display electricity, be equipped with a n terminal on the line concentration board, the 1st terminal one end is connected the back and is met GND with resistance R, and back and the 2nd terminal connection are connected with resistance R to the other end, are back and n connected with resistance R to a n terminal one end 1 individual terminal connection, the other end is connected the back with resistance R and is connected with the VCC end, is connected with resistance R between all the other adjacent two terminals, voltage comparater includes that n is individual, and every voltage comparater's negati