Safety industrial control system with fingerprint encryption

Abstract

The invention relates to a fingerprint encryption safety control system, which is composed of the controller, the fingerprint collection block and the electric lock. In addition, the BIOS with the fingerprint processing function is included in the controller, which is composed of the standard BIOS, the fingerprint identification block, the fingerprint data base and the main management block. The main management block is composed of the CMOS entering verification block, the system entering verification block, the push-button lock/unlock block, the electric lock control block and the extent of authority setting block. Because of using the fingerprint encryption, either entering CMOS or entering the system needs the fingerprint verification. In this way, the system safety is improved. In addition, with the push-button lock/unlock block, the legal user may continue operating after the temporal department. Moreover, the electric lock prevents the controller cabinet from being opened illegally.

Description

【Technical field】 [0001] The invention relates to an industrial control system, in particular to a fingerprint encryption security industrial control system. 【Background technique】 [0002] The industrial control system is mainly used for process control in industrial technological transformation and industrial automation. Building materials, teaching and other fields. [0003] A kind of industrial computer can refer to the Chinese patent that the application number is 02117200.5, the title of invention is dual-bus industrial control machine and its control method, but the industrial computer disclosed in this patent does not adopt the encryption method like most existing industrial computers. At present, fingerprint encryption methods are rarely used on industrial computers, and even if there are applications, they are limited to permission verification such as file opening. That is to say, the entire industrial computer (including hardware and BIOS) has not changed, but a...

AI Technical Summary

Problems solved by technology

The problem in this kind of startup process is: the password verification can be removed by powering off the CMOS, so that the system can enter the normal operation without verification, and there is no real anti-theft and anti-illegal boot function.

In addition, passwords may be leaked, stolen and forgotten.

[0005] In order to prevent the chassis of the industrial computer from being opened illegally, resulting in loss of hardware or information, the usual method is to lock the chassis with an ordinary mechanical lock, but it is difficult to keep the key, and it is easy to lose or imitate; There was a record of opening the box; in addition, when the key custody is handed over, for safety reasons, the lock must be changed, etc.

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