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Door-access control method and device

An access control and access control technology, which is applied in the computer field, can solve the problems of low efficiency and long passing time of the access control system, and achieve the effect of reducing system investment and overcoming long passing time

Active Publication Date: 2013-09-18
TSINGHUA UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to overcome the shortcomings of the existing access control system, such as long transit time and low efficiency, under the condition of relatively small system investment

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Embodiment Construction

[0074] The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0075] The RFID system for long-distance identification uses radio for communication. According to the working principle and performance of RFID tags, it is divided into active, passive, and semi-active or semi-passive systems in between. Active systems consist of the tag sending radio signals at regular intervals, which contain the tag's identification information. The passive system requires the energy sent by the reader to activate the built-in coil of the tag, and then the tag sends a radio signal to the reader to complete the identification. Both semi-active and semi-passive need to be activated by a reader. The difference is that the semi-active has an internal battery, which can p...

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Abstract

The invention provides a door-access control method and device. The door-access control method comprises the following steps of: acquiring the signal intensity of an RFID (Radio Frequency Identification Device) label positioned in a vehicle by a door-access RFID reader; determining a first position of the RFID label according to the signal intensity; determining the current position of the vehicle according to the first position; acquiring the driving direction of the vehicle; and determining the opening time of a gateway corresponding to the driving direction according to the current position. The door-access control method and device provided by the invention have the advantages that the defects of long passing time and low efficiency in the existing door-access system are overcome, and the investment of the system is greatly reduced compared with the traditional long-distance reading mode.

Description

technical field [0001] The invention relates to the field of computers, in particular to an access control method and device. Background technique [0002] With the development of society, the penetration rate of vehicles is getting higher and higher, and the management of the entrances and exits of various parks and large parking lots has increasingly become a key issue in modern transportation and management. Most of the traditional parking lots adopt a short-distance entry and exit mode. If vehicles can pass through the entrance and exit of the parking lot quickly and smoothly, it can not only save a lot of time, improve traffic efficiency, but also effectively alleviate traffic congestion in hot spots. . The technology proposed by the present invention for automatic traffic management of parking lot access control based on the dynamic characteristics of the antenna reading range and shape of the long-distance RFID reader can greatly realize the automation of parking lot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
Inventor 赵弋洋刘云浩孙家广杨铮何源
Owner TSINGHUA UNIV
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