Radio visual doorbell of the mobile communication system

Abstract

The invention relates to a wireless video door phone with a mobile communication system. The product includes an indoor unit and an outdoor unit, the voice channel of the outdoor unit comprises an external voice duplex module, an audio amplification circuit, a SP, a MIC and an external microphone control circuit; and the external image channel of the outdoor unit comprises an image emission module and a CCD imaging circuit. The call channel of the indoor unit comprises an internal voice duplex module, an audio amplification circuit, a SP, a MIC, a receiving circuit and an internal microphone control circuit; and the image channel of the indoor unit comprises an image receiving module and a TFT circuit. The invention employs wireless communication, therefore the door phone is stable in use and uneasy to destroy, and can be conveniently moved and mounted without influencing indoor layout, and has advantages of simple use and low cost.

Description

technical field [0001] The patent of the invention relates to the field of image communication, and belongs to a wireless video doorbell for a mobile communication system. Background technique [0002] Existing video doorbells are generally composed of cables, that is, there are cameras and microphones outside, and the cables are introduced into the room for use. However, because the use depends on wired circuits, it is inconvenient to install, and it is easy to encounter man-made or natural damage during use. It affects the use effect; and the fixed installation is inconvenient to move, and the outdoor equipment cannot be moved at any time according to the needs, resulting in limited use. Contents of the invention [0003] The purpose of the patent of the present invention is to provide a wireless video doorbell of a mobile communication system that is easy to use, can be moved at any time, and uses wireless transmission. The patent of the present invention includes an i...

AI Technical Summary

Problems solved by technology

[0002] Existing video doorbells are generally composed of cables, that is, there are cameras and microphones outside, and the cables are introduced into the room for use. However, because the use relies on wired circuits, it is inconvenient to install, and it is easy to encounter man-made or natural damage during use. Affect the use effect; and the fixed installation is inconvenient to move, and the outdoor equipment cannot be moved at any time according to the needs, resulting in limited use

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