Visible analog indoor intercom controlled by single chip and control method

Abstract

The invention discloses a visible analog indoor intercom controlled by a single chip and a control method. The visible analog indoor intercom comprises a power supply input conversion module, a main control module, an audio input and output module, a video signal amplification module and an LCD driving module, wherein the power supply input conversion module, the audio input and output module, the video signal amplification module and the LCD driving module are connected to the main control module. According to the invention, system communication and control and a video display function can be achieved by one chip, and due to the high integration property, the wiring of a circuit board can be simplified, the area of the circuit board can be decreased, the parts and components can be saved, and the production procedures can be saved, so that the development difficulty and the production cost of the products are reduced.

Description

technical field [0001] The invention relates to the research field of walkie-talkies, in particular to a visual analog indoor walkie-talkie controlled by a single chip and a control method. Background technique [0002] At present, in people's daily life, if the traditional analog video indoor intercom used in the home or office needs to realize video display, it usually requires the system main control chip to cooperate with a separate video playback module. Among them, the main control chip of the system is used to realize functions such as system communication and system work control. The separate video playback module is connected to the main board through a cable, controlled by the main control chip, and is specially used to process analog video signals and drive the LCD screen to display images. Due to the use of independent modules, the difficulty of circuit design and production costs will be increased to a certain extent, and the process in the production process wi...

AI Technical Summary

Problems solved by technology

Due to the use of independent modules, the difficulty of circuit design and production costs will be increased to a certain extent, and the process in the production process will be increased. At the same time, most video playback modules do not support the function of adjusting video display parameters, and cannot be customized according to the LCD screen or product used. The use of environment for modulation affects the display effect to a certain extent

[0003] In addition, traditional analog video door intercoms often lack system setting functions

Some analog video indoor walkie-talkies with system setting function have a simple function interface, and there is no prompt interface and prompt voice. Users often do not know whether their setting operation is successful during the setting process.

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