Automatic switching control device of low voltage direct current power supply

The utility model discloses an automatic switching control device of a low voltage direct current power supply. The automatic switching control device comprises a micro controller, a power supply module which is electrically connected with the micro controller, a display module which is used for displaying the parameter information of the control device, a clock module which is used for providing a reference clock, a voltage detection module which is used for detecting the real-time voltage value of a monitoring device, and a switch interlocking module which is used for switching between a main power supply and a backup power supply. The display module, the clock module, the detection module and the switch interlocking module are electrically connected with the micro controller and the power supply module. According to the utility model, the problem that the work of data acquisition of the monitoring device is affected when a battery of the monitoring device is replaced is solved; and the device can realize t