Industrial wireless networks protocol with time synchronization and node positioning

According to the characters and the requests of instantaneity and localization in industrial wireless networks(WIN),an in-dustrial wireless networks communication reference model and protocol framework is presented.Then based on the virtual token control MAC protocol,time synchronization algorithm and the node positioning method are introduced for industrial wireless networks.At last,the protocol and CSMA/CA implemented on the improved GAINS(global actable intelligent networks) and SNAMP(wireless sensor networks analysis and management platform) to test the data throughout and transmission delay.The results demonstrate that the protocol ensures the impartiality of channel medium access,reduces the transmitting delay of data and meets requirement of WIN.