基于CAN总线的可重构SHM系统设计

针对结构健康监测(SHM)系统现场节点功能固化，不便于机动配置及后期维护等问题，提出一种基于CAN总线的可重构SHM系统架构，设计节点功能重构、网络结构重构以及资源分配重构等技术。以功能适配接口及嵌入式操作系统的软硬件协同实现节点功能重构，以自组织特征映射网实现网络结构重构的优先级聚类，以基于组件对象模型的上位监控软件实现资源的按需分配。利用该方法设计的系统具有灵活、高效和一定自主性等特点。

Design of Reconfigurable SHM System Based on CAN Bus

For the problems that Structural Health Monitoring(SHM) system has the field nodes with fixed functions, which makes it difficult for flexible configuration and post-maintenance, this paper proposes a reconfigurable architecture for SHM system based on CAN bus. Some reconfigurable techniques are designed including node function reconfiguration, network structural reconfiguration and resource allocation reconfiguration. The functional reconfiguration of nodes is realized by collaboration of the hardware which is functional adaptation interface and the software which is embedded operation system. The self-organizing feature map net is used for the priority clustering of network structural reconfiguration. The resource allocation in accordance with the requirements is realized by the monitoring software based on the component object model technique. The system designed with this method has the abilities such as flexible, efficient and autonomy.