Semi-digital building intercom system IP network connector

Abstract

The invention discloses a semi-digital building intercom system IP network connector which is characterized by comprising a HiSilicon main control chip HI3520, a peripheral basic circuit, an audio processing chip, a video processing chip, a MAX485 chip and an electronic switch control circuit, wherein the audio processing chip, the video processing chip, the MAX485 and the electronic switch control circuit are connected with the HiSilicon main control chip HI3520 and the peripheral basic circuit; different outdoor machines can be in communication with the HiSilicon main control chip HI3520 by the electronic switch control circuit; the audio and video signals of the outdoor machines enter the HiSilicon main control chip HI3520 and the peripheral basic circuit to be subjected to network digital processing after entering the audio processing chip and the video processing chip through the electronic switch control circuit respectively; the MAX485 chip is used for realizing 485 communication between the HiSilicon main control chip HI3520 and the outdoor machines and a layering decoder. The semi-digital building intercom system IP network connector has the advantages that data transmission is stable, audio and video signal lag cannot occur, and crashing and packet loss cannot occur to the network during large data and multi-node communication.

Description

technical field [0001] The invention relates to the technical field of building intercom systems, in particular to an IP network connector for a semi-digital building intercom system. Background technique [0002] The building intercom system is a subsystem in the intelligent weak current system, and it is a necessary system for the intelligent security of the intelligent building community. According to different principles, the building intercom system can be divided into: digital building intercom system, semi-digital building intercom system, and analog intercom system. [0003] Common building intercom systems include: management center station, door station / wall station, IP network connector for unit networking, layered decoder, indoor extension (4.3 inches, 7 inches, non-visual extension) and system power supply. Among them, the IP network connector is mainly responsible for the network communication and data transmission between each building and the management cent...

AI Technical Summary

Problems solved by technology

In the long-distance state of this wired method, the audio and video signals will be attenuated to varying degrees, resulting in intermittent calls and videos, which restricts the stability of building intercom performance

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