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Punch card method based on Wi-Fi and system thereof

A user and wireless access point technology, applied in Wi-Fi-based check-in and system fields, can solve problems such as high failure rate, error-prone analysis, and manual intervention

Inactive Publication Date: 2012-10-24
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it is mechanical, the failure rate is high, and it lacks the intelligent management of modern computer systems, it still needs manual attendance management, which is extremely inconvenient
The attendance machine is generally based on IC card technology or fingerprint recognition technology. It analyzes the attendance information by installing the attendance analysis software in the computer, which reduces the time of the staff and improves the work efficiency, but it still has the analysis error-prone and requires Disadvantages such as manual intervention

Method used

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  • Punch card method based on Wi-Fi and system thereof
  • Punch card method based on Wi-Fi and system thereof
  • Punch card method based on Wi-Fi and system thereof

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Experimental program
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Embodiment Construction

[0033] During the handshake protocol access process, the workstation is in three different states: (1) initial state: unauthenticated and not yet associated; (2) authenticated but not yet associated; (3) authenticated and associated. Each state corresponds to a stage of development of an 802.11 connection. At the beginning, the user terminal is in state 1, and only when it enters state 3 can it transmit data through the network (IBSS (Independent Basic Service Set)), does not include access points, and does not need to be associated, so it will only stay in state 2). The types of management frames that can be used in each state are also different. The frames involved and their important information fields are shown in Table 1.

[0034] Initially, the workstation is in state 1, the AP sends a Beacon frame to notify the existence of a certain network, the user sends a Probe Request frame to actively detect the available network, and then the user sends an Authentication frame t...

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PUM

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Abstract

The invention discloses a punch card method based on Wi-Fi and a system thereof. The punch card method acquires management frames in preset access points (AP) according to methods of data packet monitor and data packet capture, and determines punch card information of users through frame classifications according to AP, classifications according to MAC addresses of users and frame analysis. In the punch card system, users only need to try to connect AP in operation processes to complete the punch card. A fast punch card method for staff users is provided. The punch card method does not influence normal operation of a network, and can be realized by employing a usual wireless network card supporting a monitoring mode at a Wi-Fi monitoring terminal.

Description

technical field [0001] The present invention relates to an intelligent check-in method for checking user attendance based on wireless fidelity technology (Wi-Fi), which is an intelligent check-in method for monitoring and obtaining user information by using the management frame in the 802.11 protocol handshake protocol . Background technique [0002] Companies or units often use attendance systems to manage employee commuting and attendance records and other related situations. Among them, the attendance system based on the clock-in mechanism is a computer product that combines software and hardware. Generally, this system can help the management department to control the attendance dynamics of employees, and perform attendance records and attendance analysis. The current attendance equipment is mainly divided into two categories, mechanical time clock and attendance machine. [0003] The mechanical time clock prints the attendance information on the paper, which is easy t...

Claims

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Application Information

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IPC IPC(8): G07C1/20
Inventor 徐先栋毛剑韦韬张超
Owner PEKING UNIV
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