Biological information identification method and biological information identification system applied to building talk-back

Abstract

The invention discloses a biological information identification method and a biological information identification system applied to building talk-back. The method comprises the following steps of detecting whether the authorization of selective call subscriber extensions is obtained or not when a gate host is communicated with the selective call subscriber extensions, and if yes, reading the biological information of subscribers by the gate host and storing into the selective call subscriber extensions as a biological information stub; receiving the biological information of the subscribers in real time by the gate host, and sending the biological information to all the subscriber extensions; comparing whether the biological information received in real time and the biological information stud are consistent or not by the subscriber extensions, and feeding back comparison results to the gate host; controlling a gate to be opened according to the comparison results. According to the biological information identification method and the biological information identification system applied to the building talk-back disclosed by the invention, the subscriber extensions can be expanded without the influence of the configuration of the gate host; the number of the subscriber extensions can be increased but the identification time of the system is not influenced; each subscriber extension and the gate host are all independent embedded systems; the comparison speed of the biological information is high; the comparison speed and the hardware cost can be reduced. The biological information identification method and the biological information identification system applied to the building talk-back have the advantages that capacity is flexible, the cost is low, operation is easy, the reliability is high, and the like.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a biological information identification method and system applied to building intercom. Background technique [0002] At present, many residential areas are equipped with building access control intercom systems. Modern large-scale residential areas often have multiple access control points, such as gates, multiple side entrances, unit entrances, parking lot entrances, etc. General building access control intercom systems usually use RFID cards to identify users, and are equipped with a door host and multiple user extensions. The user extension has a docking function with the door host of the gate, which can realize functions such as unlocking, dialogue, and video. [0003] Due to the shortcomings of RFID cards such as easy damage, easy loss, easy theft, inconvenient carrying, and cumbersome management. Moreover, recognition methods such as manual dialogue and video reco...

AI Technical Summary

Problems solved by technology

[0004] The user's biological characteristics, such as the user's fingerprint characteristics, the characteristic data of a single fingerprint usually requires 512B, and there are thousands of users in a modern large-scale community. Considering various fault-tolerant measures, each user often needs to store multiple fingerprint characteristic data. The storage capacity of the system is huge, and the speed of feature comparison is reduced. In the case of limited configuration of the door host, how to expand users as much as possible without increasing the burden of the door host, and at the same time reduce the recognition time of the system to meet people's habitual requirements It has become the main problem that technicians need to solve now

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