基于SAEJ1939通信协议的卡车数字仪表设计开发,利用USB．CAN转换器，设计了与数字仪表平台配套的J1939通讯测试软件，用于测试仪表的J1939协议通信-Instrument design and development of digital-based the SAEJ1939 communication protocol trucks using USB. The CAN converter design supporting the J1939 communication of test software and digital instrumentation platform for test instruments J1939 protocol communication