The Key Technologies Of Raw Milk Quality Management System Based On RFID Technology

Radio Frequency Identification (RFID) is a kind of auto-identification technology that uses radiowaves to automatically identify people or objects. RFID enables identification from a distance and itdoes so without requiring a line of sight. In recent years, RFID technology has wildly used mainly intransportation, supply chain tracking, manufacturing processes, Access control, stock management, theftprevention and Animal husbandry.The raw milk problem is one of the most important problems in the milk industry. the use of RFIDsystem has been the important identification methods in identification programs for farm animals and ofcourse been used for farm management. In china, the use of RFID is widely deployed, but use of RFIDsystem for cow identification and raw milk quality management is still not common. Because of theefficiency of the raw milk quality management is not very high. It is imperative to improve theefficiency of raw milk quality management. The thesis puts forward the RFID system model which aimsto accomplish the automatic, intelligent and informational supervision of raw milk quality management.The research is taken as follows:(1) The first chapter describes how to build up a MILKWAY raw milk quality managementsystem base on RFID (RMS). In order to communication with the ID ISC.MR100/101 reader,the thesis recommends key modules as below: hardware structure, software programming,parameter comfit, cattle electronic code, database management, system interface.(2) All tags that receive response request command from the reader respond at the same time tothe reader. Thereby, the problem that one reader must recognize several tags simultaneouslyhappens. The method to solve this problem is the anti-collision algorithm. The system take aBinary-tree searching anti-collision algorithm, the thesis also introduce a new algorithm baseon the Binary-tree searching anti-collision algorithm to improve the ability of the system.(3) In order to ensure the data to be transferred correctly, the error control mechanism CRC(Cyclic Redundancy Check) is adopted. This thesis analyzes the CRC algorithm and theprinciple of error check in detail and program CRC mechanism with C++ language. In orderto make sure the safety of the date in the MILKWAY raw milk quality management system,the DES encryption technique is introduced, and put it into use by C++ language.