基于CAN总线的某型数字化战车自动测试系统设计

Design of Automatic Test System for a kind of Digital Chariot Based on CAN Bus

摘要:

针对现代数字化战车电气与电子系统技术复杂、各分系统关联程度高、维修保障困难等问题,设计了一种基于CAN总线的数字化战车自动测试系统；整体设计基于模块化思想,充分利用车载备用总线,综合运用了DSP+FPGA控制处理技术、AFPN智能故障诊断技术,在诊断过程中对功能模块的每个扩展方向分别建立模糊Petri网模型,能够对车载电气与电子系统进行分系统独立测试和全系统联合检测,具有快速故障定位能力和拓扑适应能力；采用适配器与上位机测试软件的分体式设计,实现了平台物理资源复用,从而实现了底层设备的通用、互换,保障了测试一致性;应用表明,该系统能够较好的适用于现代数字化战车的维修保障,使用方便,故障诊断快速有效。

Abstract:

The automatic test system based on CAN bus was designed, which could be used to maintain the digital chariots; The DSP + FPGA control processing technology and the AFPN intelligent fault diagnosis technology was used in the system, and in the process of diagnosis for each extension direction of the functional modules respectively fuzzy Petri net model was established, the system can be used to test the subsystem independently or the whole system, by which the people could locate the fault quickly. The system has strong ability to adapt. The application showed that the system would be better applicable to modern digital chariots of maintenance support, and which was used easily, the fault could be done quickly and efficiently.