Building inter-communicating system established by public telephone network

Abstract

The invention discloses a building conversational system constructed by a public telephone network, which utilizes a public telephone access network as the physical connection of the network, uses an LAN-used program control switcher as a communication switch control device; the system of the invention comprises a doorway control terminal which is responsible for initiating calls and performing the action of opening door; a household telephone terminal, the LAN-used program control switcher responsible for changing information is connected with the doorway control terminal and household telephone terminal by a telephone line or a wireless access network base station, and sets the households managed by the same door as a group by utilizing the VPN telephone function of a virtual group, supplies each household in the group with a short number which is the same as the room number of the households and realizes a communication function; in the invention, the systerm also comprises a part of traditional entrance guard system and a public telephone access network. The system of the invention utilizes a fixed or mobile telephone network, adopts a room number as a communication number and realizes a function calling households by telephones; after a control signal of the telephone of the households is found, a driving circuit is unlocked; the system has low investment cost and high stability and reduces the cost and difficulty of maintenance.

Description

technical field [0001] The invention relates to a building intercom control system, in particular to a building intercom system with high safety performance which is established by using a fixed or mobile telephone network. Background technique [0002] At present, the status quo of building intercom systems in my country is mainly based on security technology prevention, supplemented by video, communication, and network systems, and has gradually developed into the mainstream of residential intelligent systems. Based on the characteristics of residential quarters, they are concentrated users and large capacity. , unified security management, and the economic income of most areas in the country is not high, so the community security system must meet the requirements of "safety, reliability, economical and effective, and centralized management". At present, there are various security control systems on the market, but they really meet According to the characteristics of the com...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the existing technical defects that the traditional building intercom system needs to be wired separately, the system equipment cannot be used for other purposes, the terminal is idle most of the time, it is inconvenient to use, there are many faults, and the communication system is not integrated. Network building intercom system without having to build a separate network, low investment cost, high stability, easy to use building intercom system

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