Design Of File Box Identification System Based On RFID

Radio Frequency Identification(RFID)technology is more and more widely used in today's production and life,but its use cost is high,and the later system upgrade and maintenance workload is large,so the file box identification system based on RFID technology has not been widely used in domestic file box management.Most of the file box management system is using bar code to identify,whether it is to check or return the process is time-consuming and laborious,making the efficiency of the archives manager greatly reduced.Therefore,this paper designs and implements a file box identification system based on RFID technology to improve the management efficiency of file box.The main contents of this paper are as follows:This paper designs a UHF tag which can be used for positioning function.It includes RFID passive tag,tag antenna,super capacitor and low power LED.The innovation of this paper lies in adding energy storage capacitors and low-power LED indicators to RFID passive tags to achieve low-power locating functions.The precise positioning of the items is realized,which is convenient for the item manager to inventory,locate,and search for items,and improve the efficiency and quality of item management.This article first designs a UHF electronic tag antenna based on T-type matching that can match the impedance of the electronic tag chip used.The antenna has good performance and can meet the design requirements.Then the overall design of the electronic tag is carried out.The control circuit of the designed RFID passive tag is connected to an energy storage capacitor.The energy storage capacitor is used to store the electromagnetic wave energy emitted by the reader.The energy storage capacitor also supplies power to the low-power LED.The reader sends a command to find a certain tag,and the tag command contains the tag ID;all passive tags within the receiving range of the reader absorb the electromagnetic wave energy emitted by the reader and store it in the energy storage capacitor;if a passive tag receives When the ID number in the tag search command sent by the reader is consistent with itself,it responds to the tag search command and supplies power to the low-power LED indicator through the energy storage capacitor,and the LED indicator lights up.