基于CAN总线和虚拟仪器的数据采集系统

Data Acquisition System Based on CAN Bus and Virtual Instrument

基于CAN总线和虚拟仪器,实现气象站中多路环境参数的数据采集系统,详细说明了该系统CAN智能节点AD接口和通信接口的设计。CAN智能节点基于STM32F103VCT6微处理器和PCA82C250CAN收发器开发,实现对环境参数的采集和传输。LabVIEW管理平台和Access数据库两者结合实现数据的实时显示、分析处理和存储。结果表明系统能够准确、可靠的完成数据的采集、通信、显示和存储等功能。系统硬件简单、可靠性高并且可以大大降低成本,应用前景广阔。

The data acquisition system based on CAN bus and virtual instrument ean deal with muhi-channel environmentalparameters in Weather Station, the design of the A/D interface and communication interface on CAN intelligent node was intro-duced detailed. The CAN intelligent node was designed based on STM32F103VCT6 and PCA82C250 CAN transceiver to realize theenvironmental parameters collection and transmission. The management platform based on LabVIEW and Access database both u-nion to realize the data real-time display,analysis processing and storage. The results show that the system can meet the request ofaccurate and reliable to cmnplete data collection, the communication and storage etc. Function. The system＇s hardware is simple,high reliability and can greatly reduce the cost and it can be used in many fiehts.