摘要
传统汽车行驶记录仪由于采集信号多,信号传输复杂,往往不能保证终端获取数据的准确性。将CAN总线应用到汽车行驶记录仪设计中,采用了CAN总线控制器SJA1000,CAN总线收发器TJA1050,实现了汽车行驶记录仪间的远程多点数据通信。给出了汽车行驶记录仪CAN总线接口电路硬件设计原理和软件设计流程。CAN总线的使用,提高了汽车行驶记录仪的稳定性,使得汽车行驶记录仪数据传输更为可靠,使用更为方便。
The accurate data access of the computer terminal can not be guaranteed because the conventional vehicle traveling data recorder acquisition signals are too many and the signal transmission is too complex. CAN bus was used in the design of vehicle traveling data recorder. CAN bus controller SJA1000 and CAN bus transceiver TJA1050 were used to realize the multi-point data communication between vary vehicle traveling data recorder. The hardware design principle and software flow chart of the CAN interface circuits were introduced. The using of CAN bus makes the work of vehicle traveling data recorder more stable, the data transmission of vehicle traveling data recorder more reliable, and the using of it more convenient.
出处
《电子设计工程》
2010年第9期126-129,共4页
Electronic Design Engineering
