Simulation And Optimization Of RFID Spatial Deployment

With the development of RFID (Radio Frequency Identification), spatial deployment has become a constraint to promote related applications。As the RFID electromagnetic signals in the real environment, the multipath effect makes the RFID field strength distribution in space often difficult to predict。This article firstly introduce the electromagnetic model for RFID and the radar equation, at last according to the minimum power and EPC standards combining with the actual measurement experiences we develop an analytical determination of the scope of RFID reader。By a large number of experiments to obtain the actual data, we combine with WSN (Wireless Sensor Network) in the network mesh method to divide the issues into regions coverage and point coverage based on RFID deployment issues needs。At the point coverage, we use annealing algorithm to establish a space simulation algorithm for the deployment of RFID field。To consider the actual scene of the most common access control deployment issues, we also presents a visual reading of taking strategies, through logical and rule-making, to address the misreading and non-wanted read the situation。Comparing to the tests, we achieved good results。Finally, we combine the deployment of RFID space algorithms and access control module to design the RFID deployment of simulation software and have partially achieved。...