Ring the doorbell downstairs. What's the name of the thing that answers the door upstairs? Online emergency

It is building intercom, which realizes mutual communication and information exchange among visitors, residents and property management centers in multi-storey or high-rise buildings, and realizes the control of safe access to residential areas.

Visitors can conveniently call the residents and talk with them through the host in front of the downstairs unit, and call the property management personnel without keys to help open the unit door lock. Residents can also control the switch of the unit door indoors, and can operate the indoor extension to call the property management personnel.

The host computer at the door can also receive alarm signals from residents at any time and send them to the host computer on duty to inform the security personnel in the community. The system not only enhances the security work of high-rise residential buildings, but also greatly facilitates residents, reduces many unnecessary troubles of going upstairs and downstairs, and makes communication more convenient, fast, safe and reliable.

Extended data

Building intercom working mode

1. The door of the building is always locked at ordinary times to prevent people who are not in the building from entering the building without authorization. Residents in the building can enter and leave the building freely with their keys. When guests visit, they need to press the room number of the visited household on the intercom keyboard outside the building door and call the intercom extension of the visited household.

2. The owner of the visited household makes a two-way call or visual call with the visitor through the intercom equipment, and confirms the identity of the visitor through the voice or image of the visitor. After confirming that visitors can enter, the owner of the household uses the unlock button on the intercom extension to control the electric door lock on the entrance door of the building to open, and the visiting guests can enter the building. After the visiting guests enter the building, the door of the building locks automatically.

3. The security department of residential property management can monitor the work of the security intercom system of each residential building in the residential area through the security intercom management host of the residential area. If the entrance door of a residential building is illegally opened and the security intercom host or line fails, the community security intercom management host will send an alarm signal and display the alarm content and location.

4, residential property management departments and households or households and households can use this system to talk to each other. For example, the property department informs residents to pay various fees, residents inform the property management department to maintain the facilities in the community, and residents report to the community or neighborhood Committee managers for help in case of emergency.

reference data

Baidu encyclopedia-building intercom