A SOLUTION FOR ETHERNET-BASED REAL-TIME COMMUNICATION NETWORK OF DISTRIBUTED NUMERICAL CONTROL SYSTEM
To improve the excellent compatibility and high real-time communication of Distributed Numerical Control (DNC) system, this paper presents an Ethernet-based solution on real-time communication for each level of DNC, especially in the motion control level. In this solution, CSMA/CD in Ethernet takes the non-determinism, but for keeping Ethernet’s compatibility and other advantages, a real-time control protocol is designed into the protocol stack of MAC and TCP/IP. And according the main features of DNC communication, a real-time control police based on time slot mechanism with CSMA/CD are proposed accordingly to schedule determinism, time-synchronization and short-circle transmission in the DNC control network. The feasibility of the solution has been tested by simulations and experiments. Thus, it provides a reference for real-time communication technologies of advanced manufacturing system.
DNC Motion control Real-time Ethernet Time slot mechanism
TAO Lin JIANG Tingbiao Zhang Xiangli
Dept. Computer & Control, Guilin Univ. of Elect. Tech, Guilin, China
国际会议
International Technology and Innovation Conference 2009(2009技术与创新国际学术会议)
西安
英文
1-6
2009-10-12（万方平台首次上网日期，不代表论文的发表时间）