How to turn off the intercom in the building for emergency help

The intercom between residential buildings is a one-wire system, that is, only one host and extension can talk to each other at the same time. Even if there are multiple hosts, only one host can call the extension. It's not an operational error. If you don't connect this indoor extension, the host doesn't show that the system is busy, which means that the signal line of this extension from the weak current well to the indoor household line is short-circuited.

Explain that your machine has been calling the host, and the host naturally shows that the system is busy. The way is to take the follow-up line directly to the weak current well to connect the extension and module, and try to see if this problem will occur again. If it is normal, it is suggested to make the connector again first, and then change the wiring.

If the problem persists, try to plug the connector of the home line into another port of the module, and then try to replace the module. But the best way is to restart the power supply, and now many building intercom hosts will have an instantaneous voltage supply that is too strong.

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Key points of intelligent building intercom system design

1. As far as the composition and construction content of the intelligent building intercom system are concerned, the portal crane is the equipment installed at the entrance of the building security door. It includes an operation panel, a bottom box, a camera, a sound signal and a control part. In the construction, there are the installation and fixation of the bottom box, the assembly of the panel and the connection of the circuit. The most important work is to adjust the image and correct the difference between day and night light.

2. Due to the cooperation with the residential structure, it may be necessary to cooperate with civil engineering and other projects during implementation, mainly to avoid the extrusion deformation of the bottom box and improve the panel fixation. The items installed on the portal crane also include the receiving and sending parts of sound. During the implementation, attention should be paid to the volume, sound pressure and installation height of the horn sound collector to meet the average height of ordinary users.

3. In the video part of the door machine, due to the limitation of the depth of field at the installation point, most cameras are flat, with low image quality and resolution, and most of them lack backlight correction performance, so some doors may be equipped with infrared lights or white light fill lights to enhance the image effect.

These requirements make it necessary to carry out some special engineering adjustment projects in the installation and construction of the intercom door machine, which must be paid attention to in the intercom system of intelligent buildings.