| Summary: | 碩士 === 中華大學 === 電機工程學系(所) === 95 === In this paper, a digital anti-collision system circuit design for Radio Frequency Identification （RFID） Tag is presented completely and verified with RF front-end circuits, moreover to be aimed at digital anti-collision system to integrated. This system was adapted with the “Slotted Random” anti-collision algorithm. Two commended Tag functions are the usage of random number system to do time-division multiplexing （TDM） and backward data linking frequencies chosen by readers. The proposed anti-collision system circuit both enhances functions to Tags, and speeds up the identification rate. Meanwhile, it reduces the detection error and the power consumption. We implemented the design on ALTERA Cyclone II EP2C5T144C7 FPGA chip combine with an antenna and a hybrid RF front-end circuit. The Alien Reader ALR-9780 had successfully linked with our Tag circuit and read the EPC codes, which were compatible with the EPC Class-1 Generation-2 UHF RFID Protocol [1]. In the integrated circuit is used SMIC 0.18 um process.
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