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Barcode-adaptive access control system based on Wiegand protocol and method for self-adapting to barcodes based on Wiegand protocol

An access control system and self-adaptive technology, applied in the direction of instruments, time registers, individual input/output port registers, etc., can solve the problem that the access control controller is far away from the identification device, and the data equipment cannot be directly applied to the access control system, etc. problem, to achieve the effect of improving the difficulty of cracking, easy operation and simple operation

Pending Publication Date: 2019-05-17
福州符号信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the access control system, the distance between the access control controller and the identification device is relatively long, so the existing devices capable of transmitting data of any length cannot be directly applied to the access control system

Method used

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  • Barcode-adaptive access control system based on Wiegand protocol and method for self-adapting to barcodes based on Wiegand protocol
  • Barcode-adaptive access control system based on Wiegand protocol and method for self-adapting to barcodes based on Wiegand protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 and figure 2 , an access control system based on a Wiegand protocol-based adaptive barcode, including an access controller, a reading device, and a client; the reading device scans the barcode and decodes it to obtain permission information, encrypts and encodes the permission information into binary After counting, directly carry out data transparent transmission through Wiegand interface; Described data transparent transmission refers to that the transmitted data is no longer encapsulated according to the data format of Wiegand agreement, but directly transmits authority information; Described access control controller receives from Read the data of the device, decode and decrypt the authority information, and compare it with the preset authority stored in the access control controller. If the comparison is passed, the access control is authorized to perform corresponding operations according to the authority information. The barcode is generated at the...

Embodiment 2

[0038] see figure 1 and figure 2 , a method for self-adaptive barcode based on Wiegand protocol, comprising the following steps: a reading device in the access control system scans the barcode and decodes it to obtain permission information for controlling the access control action execution device, and the reading device converts the permission information After being encrypted and encoded into a binary number, the binary number is transparently transmitted through the Wiegand interface of the reading device; the data transparent transmission means that the transmitted data is no longer encapsulated according to the data format of the Wiegand protocol, but the authority The information is directly sent out; the Wiegand interface of the access controller receives the data from the reading device, decodes and decrypts the permission information, and compares it with the preset permission stored in the access controller. The information notifies the access control action execu...

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Abstract

The invention relates to a barcode-adaptive access control system based on a Wiegand protocol. The access control system comprises an access controller, reading equipment and an access control actionexecution device, wherein the reading equipment scans a barcode and decodes the barcode in order to obtain authority information used for controlling the access control action execution device; afterthe reading equipment encrypts and encodes the authority information into a binary number, the reading equipment carries out data transmission through a Wiegand interface of the reading equipment; andthe Wiegand interface of the access controller receives data from the reading equipment and decodes and decrypts the data to obtain the authority information, compares the authority information withpreset authority stored in the access controller, and notifies the access control action execution device to execute the corresponding operation if the comparison is passed. The system and the methodhave the advantages that the transmitted data bits cannot be limited by the Wiegand protocol, the data of any length can be transmitted at a long distance, and the barcodes with different lengths canbe transmitted in a self-adaptive mode.

Description

technical field [0001] The invention relates to an access control system and method based on a Wiegand protocol-based self-adaptive barcode, belonging to the field of access control systems. Background technique [0002] The Wiegand protocol (Wiegan protocol) is an internationally unified standard and a communication protocol suitable for access control systems. It has many formats, the standard 26-bit is the most commonly used format, and there are also 34-bit, 36-bit and other formats. The standard 26-bit format is an open format, open to all IC card users, and almost all access control systems accept the standard 26-bit format. [0003] The Wiegand interface usually consists of 3 wires: Data 0 (Data0), Data 1 (Data1) and Data return. These 3 lines are responsible for transmitting Wiegand signals. D0 and D1 maintain +5V high level when there is no data output. If the output is 0, D0 is pulled low for a period of time, and if the output is 1, D1 is pulled low for a peri...

Claims

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Application Information

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IPC IPC(8): G07C9/00
Inventor 刘武张永高炳鑫
Owner 福州符号信息科技有限公司
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