本文以EMS（Escort Memory Systems）的RFID射頻識(shí)別讀寫(xiě)器LRP830為例，分別介紹了可編程控制器及微機(jī)與RFID射頻識(shí)別讀寫(xiě)器進(jìn)行串行通訊，從而讀取標(biāo)識(shí)數(shù)據(jù)的具體實(shí)現(xiàn)方法：PLC通過(guò)串行I/O通訊協(xié)議與RFID讀寫(xiě)器實(shí)現(xiàn)串行通訊，PC通過(guò)Windows多線程技術(shù)與RFID讀寫(xiě)器實(shí)現(xiàn)串行通訊。文中給出了實(shí)例。RFID射頻識(shí)別在我國(guó)的應(yīng)用才剛剛開(kāi)始，前景非常廣闊。本文所述方法具有一定代表性，對(duì)于推動(dòng)RFID射頻識(shí)別技術(shù)在工業(yè)自動(dòng)化等領(lǐng)域的應(yīng)用，具有一定的積極意義。
關(guān)鍵詞： 射頻識(shí)別; 可編程控制器; 微機(jī); 串行通訊
Abstract: This paper introduces the method of serial communication between PLC/PC and RFID systems in order to capture data from tags, by taking the RFID Reader/Writer from EMS(Escort Memory Systems) as an example. The serial communication between PLC and RFID Reader/Writer is achieved by GE Fanuc Serial I/O protocol, while the communication between PC and RFID Reader/Writer is achieved by Windows multi-thread technique. The application of RFID is promising and there is still a long way to go in this field in China. The method presented in this paper is representative and constructive for RFID applications in the field of Industrial Automation and others.
Keywords: RFID; PLC ; PC ; Serial Communication