Non-contact attendance information system based on Zigbee technology

Abstract

The invention discloses a non-contact attendance information system based on a Zigbee technology, comprising a central management computer, a plurality of reader-writers and a plurality of electronic identification cards, wherein the central management computer is in communication connection with the reader-writers through a serial port; the reader-writers are connected with the electronic identification cards through the Zigbee technology; when the electronic identification cards are located in the communication range of some reader-writer, the short-distance wireless communication between the electronic identification cards and the reader-writers is realized through the Zigbee technology; and a reader can be communicated with the plurality of electronic identification cards at the same time. The electronic identification cards have the function of identifying fingerprints, in order to avoid checkingattendance for a person. The system provided by the invention can realize the functions of inspecting the duty at variable intervals, sending notices and tracing temporary visitors, and provide the functions of alarming attendance failure and inquiring attendance information. The system provided by the invention adequately utilizes the low power comsumption characteristic of the Zigbee technology and combines the radio frequency identification technology to realize attendances of multiple users at the same time and thus effectively improves the attendance efficiency and intelligent management level.

Description

technical field [0001] The invention relates to the technical field of wireless time attendance, in particular to a non-contact time attendance information system based on Zigbee technology. Background technique [0002] Zigbee technology is a two-way wireless communication technology with short distance, low power consumption, low complexity, low data rate and low cost. It is mainly used in the field of automatic control and remote control. It is designed to meet the wireless networking and control of small and cheap devices. customized. Zigbee technology has low power consumption, low cost, short delay, large network capacity and high reliability. [0003] Radio frequency identification RFID technology is mainly composed of a radio frequency identification card and a card reader device, which reads and writes data on the radio frequency card by sending and receiving radio frequency signals. According to whether the radio frequency identification card itself has a power s...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: Aiming at the technical problems of low efficiency and simple functions of the existing attendance system, the present invention combines RFID technology, Zigbee technology and fingerprint identification technology to propose a non-contact attendance information system based on Zigbee technology. Employees only need to carry electronic No matter walking or driving, as long as the identity card passes through the entrance and exit of enterprises and institutions, it can be received by the reader by actively sending attendance information without stopping, and the reader can recognize multiple electronic identity cards at the same time and record relevant information. Attendance information can effectively improve attendance efficiency

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