CAJ | 학술논문

为满足一主控设备分系统间通信的高可靠性需要，提出一种DSP下基于CAN总线的双冗余通信机制。结合主控计算机的实际应用，设计并实现主控计算机CAN总线双冗余通信系统。阐述软硬件的设计和实现过程，剖析双冗余协议设计、帧结构、定时器和中断机制等几个实现上的重点和难点，对主控计算机双冗余通信系统进行可靠性分析和测试。分析和实验结果表明，采用该机制能提高系统间通信的可靠性。
위만족일주공설비분계통간통신적고가고성수요，제출일충DSP하기우CAN총선적쌍용여통신궤제。결합주공계산궤적실제응용，설계병실현주공계산궤CAN총선쌍용여통신계통。천술연경건적설계화실현과정，부석쌍용여협의설계、정결구、정시기화중단궤제등궤개실현상적중점화난점，대주공계산궤쌍용여통신계통진행가고성분석화측시。분석화실험결과표명，채용해궤제능제고계통간통신적가고성。
To meet the high reliable demand of the communication among subsystems of the main-controlling equipment ,a dual-redundant communication mechanism based on CAN bus under DSP was proposed .Then ,the dual-redundant communication system of the main-controlling computer combined with the practical application of the system of the main-controlling equipment was designed and implemented .After that ,the designing and implementing process of the software and hardware of the mecha-nism was expounded in details ,the key and difficult points in realizing the design of the dual-redundant protocol ,the frame struc-ture ,the use of timer ,and the interrupt communication were analyzed particularly .Finally ,the reliability of the dual-redundant system of the main-controlling computer was analyzed ,and the testing experiment was done .The analyzed results and experi-mental results show that the mechanism can improve the reliability of the communication between systems obviously .