基于CAN总线的虚拟仪器设计

Design on Virtual Instrument Based on CAN Bus

CAN总线是指用于现场仪表与控制系统和控制室之间的一种全分散、全数字化的智能双向、多变量、多点、多站的通信系统。基于CAN总线的虚拟仪器既可利用CAN总线的优点,实现测量仪器的自动化、智能化,又可利用虚拟仪器的优点实现可视化编程环境,建立通用的图形化软面板。基于CAN总线的虚拟仪器,由于可通过总线采集数据,可省去大量的硬件资源,因此具有经济、高效的特点。

CAN bus is a kind of full dispersed, full digitized, two-way intelligent, multivariable, multipoint and multioperator communication system between field instrument and control system. The virtual instrument based on the CAN bus can use not only the advantages of CAN bus to realize the automation and intellectualization, but also the merits of virtual instruments to realize the visual programming environment and establish the graphical soft panel. The virtual instruments based on CAN bus can collect data through buses to save enormous hardware resource. Therefore, it has the economical and high efficient characteristics.