An Intercom Access Control System Based on Public Telephone Network

Abstract

An intercom entrance guard system based on a public telephone network comprises a unit entrance main unit and indoor auxiliary units. Each building unit is provided with one unit entrance main unit and multiple indoor auxiliary units, and the indoor auxiliary units are provided with multiple guard alarming interfaces and transmit alarm signals from the multiple guard alarming interfaces to communication tools of proprietors on the basis of the public telephone network. The public telephone network is adopted for communication, and cost is low; since the public communication device is adopted, the proprietors are capable of using the timely guard alarming service including video monitoring without installing telephones or networks and are capable of acquiring the notification of timely alarming signals and relieving the entrance guard or talking to visitors as required when the proprietors are outdoor.

Description

technical field [0001] The invention relates to an intercom access control system, in particular to an intercom access control system based on a public telephone network. Background technique [0002] With the progress of society, the concept of safety is becoming more and more important. When people buy a house, safety is an important condition to check whether the property management level is perfect. Especially those criminals who flee to commit crimes often choose residential areas as their attack targets. Cases of burglary, robbery, and homicide have occurred frequently. Require. [0003] The existing intercom access control system generally has the following deficiencies: [0004] (1) The cost is high, and large-scale network wiring engineering construction is required, and special cables are laid. For new communities, it increases construction and installation costs and reduces profit margins; for old communities, renovation costs are very high, rewiring is require...

AI Technical Summary

Problems solved by technology

[0004] (1) The cost is high, and large-scale network wiring engineering construction is required, and special cables are laid

For new communities, it increases construction and installation costs and reduces profit margins; for old communities, renovation costs are very high, rewiring is required, and construction will also bring noise, etc., affecting the normal rest of residents in the community

[0005] (2) At present, smart cameras for home use have appeared. However, in order to obtain real-time image information, the owner needs to have a fixed network or wireless network, and the cost is relatively high.

[0006] (3) The existing intercom access control system generally sends the alarm signal to the management machine of the property, and does not notify the owner. Since the owner cannot be informed at the first time, it is difficult to deal with it in time

[0007] (4) When the owner is not at home, visitors cannot pass through the unit access control, and the owner cannot know

Images