USB/RS485转换器的设计及其在高能实验物理慢控制数据采集系统中的应用  

Design of USB/RS485 converter and its applicationin slow control data collection system of high energy physics

作　　者：陈锡辉[1] 谢嵩[1] 高翠山[1] 谢小希[1] 聂振东[1] 张银鸿[1] 高路[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049

出　　处：《核电子学与探测技术》2005年第1期88-92,共5页Nuclear Electronics & Detection Technology

摘　　要：传统的基于RS232/485的数据采集系统只能实现点对点的连接,各个分支不能独立工作,给系统的调试、安装和维护带来很大不便。早已成为PC标准的通用串行总线USB具有热插拔、多点、高速、安装简便等优点。将USB应用于数据采集系统后,各分支能实现独立工作,给系统带来了极大的便利。介绍了USB/485转换器的设计及其在高能实验物理BESIIISlowControl数据采集系统中的应用。Most of traditional data collection systems are based on RS232/485 converter. Such a system can only realize the point-to-point connection and its branches cannot work independently. So it brings on lots of inconvenience in debugging, installing and maintenance. On the other hand, the widely used Universal Serial Bus (USB) has many advantages such as hot-plugging, easy to extend, convenient in installing and occupying less system resources. So if USB could be used in data collection system, it would bring on lots of convenience to the system and its branches could be work independently. The design of USB-485 converter and its application are introduced in this paper.

关 键 词：USB 数据采集系统 独立工作 RS485 通用串行总线 转换器 控制数据 RS232 多点 点对点 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TP336[自动化与计算机技术—控制科学与工程]