基于虚拟仪器技术的车辆监控系统设计

针对轨道车辆控制系统中驱动电机多而分散、系统信息量大、布线复杂、调试不方便等问题,设计了一种基于现场总线和虚拟仪器技术的分布式轨道车辆监控系统;利用LabVIEW软件构建了车辆控制系统的状态监测平台,监控主机与现场智能节点通过CAN总线进行通信,实现了多电机的分散控制和集中监管功能,形成了分布式监控网络,简化了系统结构;文中介绍了监控系统的整体结构、智能节点的软/硬件设计流程;该系统经实际测试和现场运行表明,CAN总线和虚拟仪器技术的有机结合优于传统监控系统的实现方法,并且具有一定的推广价值和广阔的应用前景.

Design of Monitoring and Control System of Railcar Based on Virtual Instrument Technology

Countering the problems existing in the distributed control system of railcar,such as the condition of excessive and distributed driving motor,many information exchange,complex wiring,and inconvenient installation and debugging,a monitor and control system of railcar based on CAN Bus and virtual instrument technology is designed.The HMI is studied and realized on the platform of LabVIEW.Via CAN(Control Area Networks) bus,the monitor host computer and these field intelligent nodes can communicate with each other directly,like a distributed network.The system structure is more concise.The function of distributed setting and concentrated control is realized in this system.The whole structure and principle of system,the hardware circuit,and the software programming were discussed in detail.Practical using shows that this monitor system has the better control effect,indicates it's brilliant and valid beyond traditional methods and is suitable for similar practical engineering.