Design of Intelligent Attendance System Based on RF Technology

Liu, Meili; Yao, Yongge

doi:10.1145/3469213.3470687

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…It has the advantages of high positioning accuracy and good robustness and is not susceptible to interference. However, the system requires a large bandwidth (greater than 500 MHz) and a precise synchronous clock; the calibration is more difficult [20][21][22]. The application of UWB mainly lies in shortdistance high-speed data communication, that is, the wireless transmission of a large amount of multimedia data without delay; the rate is from 100 Mb/s to 500 Mb/s; it also has certain advantages and application prospects in the field of indoor attendance [23], so many researchers are working on this [24].…”

Section: Related Workmentioning

confidence: 99%

Physical Education Attendance Based on Wireless and Passive RFID Technology

Lin

Wen

2022

Journal of Sensors

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Attendance information is an important data resource for physical education management in colleges and universities. Based on wireless and passive RFID technology theory, this paper designs a UHF passive RFID radio frequency identification physical education attendance model. The device includes three parts: carrier leakage canceller, radio frequency transceiver, and digital baseband signal processing. In the model hierarchy, the client sends a Web request to the server, and the request information is organized by the RFID document, including information such as the range, scale, and display attributes of the requested map. The Web server modifies the predefined map definition file by parsing the information. In the simulation process, the frequency domain model and baseband complex envelope time domain system of the RF front-end of the reader based on carrier leakage cancellation were built in ADS software and Matlab/Simulink, respectively. The reader front-end and digital baseband signal processing are comprehensively simulated, and the result verifies the function of the whole system. After testing and debugging, it has been proven that the median synchronization number of the signal is 12, the point synchronization number is 29, the input IDB compression point measured by a single tone is 9.6 dB smaller than that of IIP3, and the input IDB compression point measured by two tones is smaller than 14.4 dB, which can promote the informatization process of physical education management in colleges and universities.

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