在SOA 的工業(yè)自動化控制中, 需要將數(shù)控設備所提供RS232 或RS422/ RS485 串行通信接口等現(xiàn)場總線，映射為相應的制造WEB 服務。數(shù)控設備WEB 服務網(wǎng)關可將現(xiàn)場總線設備連接到互聯(lián)網(wǎng)并發(fā)布為制造WEB服務，實現(xiàn)各種嵌入式網(wǎng)絡服務以融合異構網(wǎng)絡。
此文給出了數(shù)控單元WEB 服務網(wǎng)關的軟硬件設計，還重點介紹了SOAP 的壓縮傳輸方案， 以改善WEB SERVICE 的傳輸性能。
關鍵字：數(shù)控；網(wǎng)絡服務；網(wǎng)關；SOAP壓縮
【Abstract】In industrial controlling based-on SOA, Field bus such as RS232 / RS422 / RS485 requires to mapping as corresponding WEB Service. The Numerical Control-oriented WEB Service gateway translates the Field bus interface into WEB Service and publishs it on embeded networks. This paper introduces the design of software and hardware, and
stresses the method to improve the performance by compressing SOAP message.
【Key words】NC, WEB Service, gateway, SOAP compress