An Intelligent Access Control System with Analog-to-Digital Conversion Function

Abstract

An intelligent access control system with an analog-to-digital conversion function comprises a housing estate property management unit, an outdoor unit and an indoor unit, wherein the outdoor unit is connected with the indoor unit through an analog circuit; the outdoor unit comprises an analog-to-digital network converter; and the analog-to-digital network converter is connected with the housing estate property management unit through a TCP / IP (transmission control protocol / internet protocol) network digital circuit. The intelligent access control system with the analog-to-digital conversion function has advantages of an analog system and advantages of a digital system owing to the analog-to-digital network converter, mixed transmission of analog and digital signals in the access control system can be realized, and the safety, the utilization ratio and the intelligence of the access control system are improved effectively.

Description

Technical field: [0001] The invention relates to the technical field of access control communication, and more particularly, relates to an intelligent access control system with an analog-to-digital conversion function. Background technique: [0002] The analog access control system in the old community generally uses the bus technology to share the line to transmit analog audio and video signals. With the rapid development of network technology, residential properties and owners have an increasingly strong demand for intelligent access control intercom systems. However, only using the original traditional analog system has the following major technical bottlenecks. [0003] 1. If it is connected to the property office, the interference of audio and video analog signals will be serious after long-distance transmission and the signal will be easily attenuated and distorted. Due to poor anti-interference, it is difficult to guarantee the quality of networked audio and video, ...

AI Technical Summary

Problems solved by technology

However, only using the original traditional analog system has the following major technical bottlenecks

[0003] 1. If it is connected to the property office, the interference of audio and video analog signals will be serious after long-distance transmission and the signal will be easily attenuated and distorted. Due to poor anti-interference, it is difficult to guarantee the quality of networked audio and video, and the image or sound will not be clear for a long time;

[0004] 2. Most of the audio and video channels in the network are single-channel, and only two points are allowed to communicate on the same bus, which is seriously busy in actual use, which affects the normal use of the intercom system;

[0005] 3. The function is too simple, limited to the call unlocking function, the degree of intelligence and resource utilization is low, and the system scalability is poor

[0007] In addition, there are still security problems in the prior art, and burglary and theft incidents occur from time to time, and strangers use the intercom function of the access control system to judge whether the user is at home, whether it is an old man, a woman or a child. Choose the target

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