U flash disk door control system

An access control system and signature information technology, applied in instruments, time registers, individual input/output port registers, etc., can solve the problems of easy damage to access control, easy loss of keys, easy damage of magnetic cards, etc., to save steel resources Effect

Inactive Publication Date: 2013-06-05
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the progress of society, people have higher and higher requirements for the quality of life. Most of the residential areas and commercial buildings will install access control to pursue privacy and higher security. At present, many access control systems use keys, Magnetic cards or passwords are used to open the door. Keys are easy to lose, magnetic cards are easily damaged, and password input is also cumbersome, and the keys on the access control are also easily damaged.

Method used

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  • U flash disk door control system
  • U flash disk door control system

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Embodiment Construction

[0020] The system can be divided into three parts: U disk part, information processing part, wireless receiving part, which is composed of U disk, U disk reading circuit, single chip microcomputer and peripheral circuit, serial port communication circuit, GSM wireless receiving module and so on.

[0021] The realization steps of the present invention are as follows:

[0022] When the U disk is inserted into the access control, the information reading circuit composed of the general interface chip CH375 of the USB bus will automatically search for the signature information in U shield.c in the root directory of the U disk.

[0023] The signature information is input through the IO port of the MCU with STC89C52 as the processor and compared with the preset signature information in the program. If the verification is passed, a level signal is output through the IO port of the MCU to control the relay to close the electromagnetic lock circuit to open the access control; if the veri...

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Abstract

The invention relates to a U flash disk door control system. The system mainly comprises a U flash disk, an information processing module and a wireless receiving module, wherein the U flash disk is used for storing user signature information, the information processing module is used for processing the signing information sent from the U flash disk and comparing and validating the signing information with the signing information preset in the program in an MCU (Microprogrammed Control Unit), the wireless receiving module is used for receiving an instruction information sent in a wireless manner, the information processing module consists of the MCU and a peripheral circuit, and the wireless receiving module consists of a GSM (Global System for Mobile Communication) wireless receiver and a serial port communication circuit. The door control system is convenient and practical, and environment-friendly and economic by replacing the traditional keys with a U flash disk, the door can be opened with a mobile phone when people forgets to carry or loses the U flash disk, so as to prevent the losing of the key and incapability of opening the door, the signing information can be modified by sending a text message instruction through the mobile phone, thereby avoiding the waste of changing a lock caused by losing of a key or changing of an owner.

Description

technical field [0001] The invention relates to an access control system, in particular to a U disk access control system. Background technique [0002] With the progress of society, people have higher and higher requirements for the quality of life. Most residential areas and commercial buildings will install access control, pursuing privacy and higher security. At present, many access control systems use keys, If you use a magnetic card or enter a password to open the door, the key is easy to lose, the magnetic card is often damaged, and entering the password is also cumbersome, and the keys on the access control are also easily damaged. In recent years, the vigorous development of the U disk industry has made U disks become smaller and more beautiful, with larger capacities and lower prices. In order to make the USB flash drive we carry more practical and save cost, such a USB flash drive access control system is designed, and the key is replaced by a USB flash drive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
Inventor 盛乐乐王长坤杨湾雷仁华柴阿琴朱丽洁
Owner NANCHANG HANGKONG UNIVERSITY
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