Radio frequency computer lock, computer locking and unlocking method

Abstract

The invention provides a radio frequency computer lock, a computer latch and an unlocking the method; the radio frequency computer lock comprises a radio frequency card and a reader; the reader comprises a receiving radio frequency card, a radio frequency signal antenna and a radio frequency circuit; a micro-controller to process the radio frequency signals; a USB interface circuit to transmit the micro-controller process information into a computer, as well as a card number identification unit connected with the micro-controller. The computer latch and the unlocking method comprises: The micro-controller identifies whether the antenna and the radio frequency circuit receives the radio frequency signals; the micro-controller extracts code information of the radio frequency card from the radio frequency signals; identify whether the code information is matched; if yes, launch an unlocking command to the computer; otherwise, launch a latch or shutdown command to the computer. The invention makes the radio frequency computer lock quickly latch a computer or unlock the computer, and avoids users' trouble in typing in their own code information of the radio frequency cards when utilizing each computer.

Description

technical field [0001] The invention relates to a radio frequency computer lock and a method for locking and unlocking a computer using the radio frequency computer lock. Background technique [0002] With the popularization of computers, people like to store personal privacy information such as private letters and personal photos, as well as important business data such as business information and technical materials in computers. Damage will cause heavy losses to the user, so the user generally needs to lock the computer when leaving the computer to protect the information stored in the computer from being illegally obtained. However, if the user needs to manually lock the computer every time he leaves the computer, the operation is inconvenient, and he often forgets to lock the computer due to negligence, resulting in a threat to data security. Therefore, people have begun to use radio frequency automatic computer locks to lock computers wirelessly and unlock the compute...

AI Technical Summary

Problems solved by technology

[0005] However, since the microcontroller 23 communicates with the computer 3 through the USB interface circuit 24, and the transmission rate of the USB interface circuit 24 is relatively slow, the speed at which the reader 2 locks and unlocks the computer is slowed down.

In addition, because the legitimacy of the user's identity is judged by the computer 3, a large amount of computer memory resources are required, and because the user needs to enter the number of his own radio frequency card 1 on the computer 3 to unlock the computer 3, if the user needs to use If there are many computers 3, the user needs to input the number of his own radio frequency card 1 on each computer 3 used, which brings inconvenience to the user, and the information of the radio frequency card number is also easily leaked when stored on the computer, thereby reducing its security. sex

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