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Design and Implementation of Web Services Client Based on ARM Linux Embedded Platform

With the extensive application of industrial sensor networks in the embedded field, the interconnection communication between the embedded node is proposed for the cross-LAN/WAN communication needs. Traditional communication schemes using proprietary protocols and sink nodes do not fully meet the interoperability needs. Web Services technology has the characteristics of openness, platform interoperability, ease of use and platform independence. It can solve the interconnection problem between embedded system, embedded device and enterprise system. Based on the analysis of the principle of Web Services technology, this paper puts forward the design and implementation scheme of Web Services client based on ARM Linux embedded platform. The scheme is mainly composed of WSDL parser and SOAP message processor. According to the structural characteristics of the WSDL document, the data structure based on the square detection hash table based on the open address and the data type tree is used in the WSDL parser. Finally, the function test and performance test for the client are carried out to verify the correctness and feasibility of the scheme.