Doorbell intercom system

Abstract

The invention discloses a doorbell intercom system, which comprises at least one door phone arranged outside a door and an indoor phone arranged indoors, wherein the door phone comprises a baseband chip, a wireless transmitting / receiving module, a doorbell button, a horn and a microphone; the baseband chip controls the wireless transmitting / receiving module to be communicated with the indoor phone under the trigger of the doorbell button, and the wireless transmitting / receiving module and the indoor phone perform transmission by using a cordless telephone signal, so that an audio signal inputted by the microphone is sent to the indoor phone and the received audio signal is sent to the horn to be played after being processed; and the indoor phone is a wireless cordless / base telephone and comprises a wireless base telephone and a plurality of wireless cordless telephones. In the intercom system, the door phone is communicated with the indoor phone by utilizing the conventional telephone network and the cordless telephone signal, so the wiring cost is reduced, and the doorbell intercom system is convenient to install and answer.

Description

technical field [0001] The invention belongs to a building intercom system, in particular to an intercom system using a wireless telephone and a wireless doorbell. Background technique [0002] With the development of building technology and security technology, doorbell intercom systems are installed in many residential areas at present. By installing an outdoor machine at the gate of the community (or outside the door of a villa), each household installs an indoor machine in the home, and visitors want to enter When in a community, you must dial the number corresponding to the resident to be visited through the intercom doorbell of the outdoor station, and the resident will make a call through the intercom device of the indoor station. After confirming that it is correct, use the door control device to unlock the door and allow visitors to enter. This intercom system can effectively prevent strangers from entering the community at will and improve the safety of residents i...

AI Technical Summary

Problems solved by technology

[0003] In the currently used doorbell intercom system, the outdoor station and the indoor station communicate through radio frequency signals, and both work through wired connections. Especially when installing the indoor station, professional and technical personnel are required to install and pre-wire. , the user cannot install and upgrade by himself; in addition, after the indoor unit is installed, it is fixed on the wall of the indoor door or other positions, and cannot be moved at will. When the user responds to the doorbell, he must reach the fixed position of the indoor unit to intercom and unlock. action, which brings a lot of inconvenience when using

[0004] In addition, when the user's room is large, in order to facilitate the response, it is possible to add several indoor units, but this will increase the number of indoor units and require additional wiring, thereby increasing the cost of use, and the wiring in the room is easy Makes the room messy, not the first choice

[0005] Furthermore, in order to facilitate the user to answer, the building intercom system and the home telephone system are combined, and the telephone is used to answer the doorbell. , in actual use, it is necessary to use a switcher to switch the function of the fixed phone between answering the doorbell and answering the phone, which increases the size and cost of the device, and is also inconvenient to use

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