Fuel cell monolithic voltage detection device and method

The invention provides a fuel cell monolithic voltage detection device and method, and the device comprises a voltage collection circuit, a wireless uploading circuit, an MCU circuit and a power supply interface circuit. The voltage collection circuit is connected with a cell monolithic voltage measurement probe through a flat cable, and is used for collecting a cell monolithic voltage analog signal, and after analog-to-digital conversion, the voltage digital signal of the single battery is sent to the MCU circuit; the MCU circuit reads a battery single-chip voltage digital signal sent by the voltage acquisition circuit, filters the battery single-chip voltage digital signal and sends the filtered battery single-chip voltage digital signal to the wireless uploading circuit; the wireless uploading circuit board-mounted radio frequency antenna is used for receiving the voltage digital signal of the single battery piece sent by the MCU circuit, and uploading voltage information to centralized control equipment t