CAN bus-Ethernet data conversion device and method for battery testing

The invention discloses a CAN bus-Ethernet data conversion device for battery testing. The CAN bus-Ethernet data conversion device comprises a bidirectional conversion device, and a power supply, an Ethernet interface and a CAN card which are connected with the bidirectional conversion device, the bidirectional conversion device is composed of a communication parameter configuration module, a CAN data analysis module, a CAN data receiving and transmitting module, a data mapping and packaging module and a UDP data receiving and transmitting module, the number of the CAN cards is multiple, the CAN cards are connected with the bidirectional conversion device through a PCI bus or a USB bus, and the CAN cards are connected with the CAN communication aviation plug. The invention further discloses a data bidirectional conversion method. According to the invention, continuously increasing and changing CAN acquisition and control equipment data processing requirements of customers can be met, so that the flexible expa