Dual-power-supply switching controller for communication between upper plate and lower plate

The utility model provides a dual-power-supply switching controller for communication between an upper board and a lower board. The dual-power-supply switching controller comprises an upper control mainboard, a lower control mainboard and an upper computer communication module, an upper board controller, a key input module, a display module and an alarm module are arranged on the upper control mainboard; the lower control main board is provided with a lower board controller, a voltage acquisition module, a closing state feedback module and a relay output module. The upper plate controller and the lower plate controller are communicated through a serial port, and the upper computer communication module is connected with the upper plate controller and the lower plate controller and used for communicating with an upper computer. The dual-power-supply switching controller for communication between the upper board and the lower board has the advantages that multiple functions of the dual-power-supply switching con