【摘要】 随着光电跟踪探测技术的发展,光电经纬仪采用的传统通信方式已无法满足要求。现场总线作为一种全数字化、双向、开放的多站串行通信总线,已经成为当前发展的热点。针对目前国际上多种现场总线标准共存的现象,对几种重要的总线标准做了介绍和对比,重点分析了控制器局域网(CAN)的技术特点,提出了一种基于CAN总线的光电经纬仪内部通信系统实现方案。更多还原

【Abstract】 With the development of opticalelectronic tracking technology, traditional communication mode which is used on opticalelectronic theodolite can not be satisfied with requirement.Fieldbus,as a kind of serial communication system with numerical, opening and multistation, has been the focus of automatization technology development. According to the existing situation of multiple FieldBus standard in the world, some kinds of important FieldBus standard have been introduced and compared. The technical character of Controller Area Network (CAN) is analysed. A new scheme of communication system within opticalelectronic theodolite based on CAN Bus has been proposed.更多还原