Simplified control system based on mining shunting locomotive

The utility model discloses a simplified control system based on a mining shunting locomotive, which is characterized by comprising a locomotive signal input interface, a signal output interface, a programmable logic controller module, a display, a 24V DC (Direct Current) power supply converting module and a diesel engine rotation speed control signal output interface. The programmable logic controller module is bi-directionally connected with the display and consists of a programmable logic controller, a digital-to-analogue conversion module and an expansion module; the signal input interface and the 24V DC power supply converting module are electrically connected with the programmable logic controller module in one direction; and the programmable logic controller module is electrically connected with the signal output interface and the diesel engine rotation speed control signal output interface in one direction. After the simplified control system disclosed by the utility model is designed, the design of t