基于LabVIEW的仪器通信技术研究

Study on Communication Technology of Instrument Based on LabVIEW

探讨了基于LabVIEW的仪器通信总线的硬件连接方式,以及三层软件体系结构,对LabVIEW平台上仪器设备四种远程通信模式进行了比较和总结;在直线感应加速器测控系统中,仪器设备数量大、种类多、总线类型复杂;众多仪器在结构上根据功能划分为不同的子系统,每个子系统仪器设备通过必要的协议转换后和相应的前端设备服务器连接;前端设备服务器中的本地控制程序通过VISA或UDP协议与仪器通信,远程通信采用DataSocket技术;这套系统目前运行稳定可靠,完全满足直线感应加速器实验要求。

The hardware connection and software structure of universal instrument was discussed based on LabVlEW, four realization modes of instrument remote communication was summarized and compared too. In the measurement and control system of LIA, the character of instruments are large amounts, different varieties and interfaces, the instruments are divided into distinct subsystem according purpose, and instruments in the subsystem are joined to the model of protocol transition, and then linked with the local server; VISA library and UDP protocol are applied in the software of local server and DataSocket protocol is applied in the remote communication. The system runs steadily and reliably on LIA by this time.