Application Of Xml Technology In The Integration Of Rfid Data Compression Algorithms

With the era of Internet of Things, RFID technology is more widely used, such asmodern logistics industry, modern manufacturing, modern retail and modernpharmaceutical industry and so on. Such a large number of RFID technology is applied,it will inevitably need to store large amounts of RFID data, and thus take advantage ofthese large amounts of data to industry data analysis.Integration process needs to subsystem data into XML format documents as theintermediate medium, and an XML document itself has a lot of structure to describe thecharacters, plus a huge amount of data of the enterprise-class RFID path data, so thesedata effective compression has become an important step in data integration.Analyze the integration of RFID data characteristics and the XML documentcompression technology for the integration of RFID data, and makes two improvementsin the basic algorithm on XML data compression drawn from the analysis of twocharacteristics:1.According to a relatively fixed characteristics of the enterprise-levelintegration of RFID data, put preset XML Schema modules into the compressionalgorithm based on XML Schema，for pre-generated the common or default XMLSchema，and give administrator authority to operate。2. EPC encoding is an internationalstandard encoding, with its four-part represents different meanings, and it has a strongregularity。Meanwhile，it occupies an important position in the integration of RFIDdocument. So this article on the use of a segmented hashes conversion to EPC encoding，afterwards executes following compression. Also in order to ensure effective hashconversion, on the one hand, the hash conversion extension mechanism is joined in, usedto meet the shortage of space reserved hash table since growth; On the other hand, inorder to overcome the problem that the encoding scheme is not uniform due togeographical differences and RFID subsystems established inconsistently in time andother factors brought, the hash conversion raises the adaptive improvement ofmulti-encoding scheme used to be adapted to various EPC encoding scheme.Finally, a subsystem week RFID path data were simulated according to the RFIDdata characters, and design a test program to exam the improved algorithm on simulateddata. From the test results, the improved algorithm in two aspects of compressiontimeliness and compression ratio is superior to the basic compression algorithm.