Information transmission method of entrance guard system, and entrance guard system

An access control system, signal technology, applied in the direction of a single input/output port register, instrument, time register, etc.

Active Publication Date: 2012-10-24
KUANG CHI INTELLIGENT PHOTONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide an information transmission method of an access control system and an access control system, which can avoid the situation that the receiving and controlling end of the access control system cannot transmit the feedback signal due to the limitation of the simplex communication of the Wiegand signal

Method used

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  • Information transmission method of entrance guard system, and entrance guard system
  • Information transmission method of entrance guard system, and entrance guard system
  • Information transmission method of entrance guard system, and entrance guard system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 1 , is a flowchart of an information transmission method for an access control system provided in Embodiment 1 of the present invention, and the information transmission method includes the following steps:

[0037] S101: The receiving and controlling end receives a visible light signal representing identity information.

[0038] The identification information is user ID information, which may be password information, or biometric information such as fingerprints.

[0039] S102: The receiving and controlling end converts the visible light signal into a digital signal.

[0040] Specifically, the receiving and controlling end receives the visible light signal carrying identity information, converts the visible light signal into a current signal, converts the current signal into a voltage signal, and uses the voltage signal as a digital signal.

[0041] S103: The receiving control terminal sends the digital signal to the controller in Wiegand format.

[0042]...

Embodiment 2

[0048] see figure 2 , is a flowchart of an information transmission method for an access control system provided in Embodiment 2 of the present invention, and the information transmission method includes the following steps:

[0049] S201: The receiving and controlling end receives a visible light signal representing identity information.

[0050] The identification information is user ID information, which may be password information, or biometric information such as fingerprints.

[0051] S202: The receiving and controlling end converts the visible light signal into a digital signal.

[0052] Specifically, the receiving and controlling end receives the visible light signal carrying identity information, converts the visible light signal into a current signal, converts the current signal into a voltage signal, and uses the voltage signal as a digital signal.

[0053] S203: The receiving and controlling end verifies the digital signal. For example, the receiver performs a ...

Embodiment 3

[0063] see image 3 , is a schematic structural diagram of an access control system provided in Embodiment 3 of the present invention, and the access control system includes:

[0064] The transmitting terminal 301, the receiving terminal 302 and the controller 303 connected in sequence;

[0065] The transmitting end 301 is used for sending a visible light signal representing identification information (such as user ID). The transmitter 301 may be a photonic client, such as an optical encryption key specially used to send visible light signals, or an electronic device capable of sending visible light signals, or a mobile phone.

[0066] The receiving and controlling terminal 302 includes a photoelectric conversion module 302a for receiving the visible light signal emitted by the transmitting terminal 301 and converting the visible light signal into an electrical signal. The first Wiegand interface 302b used to send the electrical signal, the first Wiegand interface 302b may b...

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PUM

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Abstract

The invention discloses an information transmission method of an entrance guard system, and an entrance guard system. The information transmission method comprises the steps that: a control-receiving terminal receives visible light signals representing identification information, and converts the visible light signals into digital signals; the digital signals are transmitted to a controller in a Wiegand format; the controller receives the digital signal in the Wiegand format, and carrying out authentication upon the identification information; if the identification information is authenticated, high-level or low-level feedback signals are transmitted to the control-receiving terminal through a serial port; and through the serial port, the control-receiving terminal receives the feedback signals with a manner of detecting rising and falling edges. With the method and the system provided by the invention, the entrance guard system control-receiving terminal can be prevented from being restricted by Wiegand signal simplex communication, such that a situation of signal feedback transmission failure is prevented.

Description

technical field [0001] The invention relates to the technical field of access control systems, in particular to an information transmission method of the access control system and the access control system. Background technique [0002] Wireless optical communication technology, also known as visible light communication, communicates through high-frequency flickering of LED light sources. Light represents 1, and no light represents 0. Its transmission rate is up to gigabits per second. Wireless optical communication technology can be used to make wireless optical encryption keys because its data is not easy to be interfered and captured, and optical communication equipment is simple to manufacture and should not be damaged or degaussed. Compared with microwave technology, wireless optical communication has quite rich spectrum resources, which is unmatched by general microwave communication and wireless communication; at the same time, visible light communication can be appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
Inventor 刘若鹏栾琳李春来许学君
Owner KUANG CHI INTELLIGENT PHOTONIC TECH
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