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Novel low-cost analog-digital hybrid visual intercom multi-indoor-unit system

An analog-digital hybrid and building intercom system technology, which is applied in the application field of multiple analog indoor units, can solve the problems of poor function expansion, distortion, and single function of analog indoor units, and achieve visual intercom, avoid attenuation and Distortion, effects for real-time response

Pending Publication Date: 2021-08-24
福州米立科技股份有限公司
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  • Abstract
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Problems solved by technology

Although the above two can realize the long-distance transmission and networking functions of the analog intercom system, there are still some shortcomings such as the distortion of the digital and analog signal conversion and then the conversion and transmission of the intermediate equipment, and the poor scalability and single function of the analog indoor unit.

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  • Novel low-cost analog-digital hybrid visual intercom multi-indoor-unit system
  • Novel low-cost analog-digital hybrid visual intercom multi-indoor-unit system
  • Novel low-cost analog-digital hybrid visual intercom multi-indoor-unit system

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0053] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention. In addition , the terms "first" and "second" are only u...

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Abstract

According to the novel low-cost analog-digital hybrid visual intercom multi-indoor-unit system provided by the invention, a control mode that a plurality of indoor units are connected with one digital switch is used, so that intermediate equipment for simulating a building intercom system and logic function control circuits of the indoor units are removed, and the overall cost is greatly reduced; meanwhile, the system has the same function and man-machine interaction effect as an all-digital terminal, and can be well applied to batch production of products.

Description

technical field [0001] The invention relates to a visual or non-visual building intercom system, in particular to an application of using one digital exchange with multiple analog indoor units in a digital-analog mixed building intercom system. Background technique [0002] At present, the common building intercom systems on the market include digital building intercom systems, analog building intercom systems and digital-analog hybrid building intercom systems. Digital building intercom system, that is, all audio, video and control signals use digital communication such as network cables or WIFI. Each indoor unit is equivalent to a digital terminal, with strong functions, no signal attenuation, long transmission distance, simple wiring, and networking Strong performance, but high cost; analog building intercom systems, often use RVV or network cable wiring, audio and video use baseband or modulated signal transmission, complex wiring, large signal attenuation, poor networki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04Q5/24
CPCH04N7/186H04Q5/245
Inventor 谢礼龙王龙官发辉张俊山罗发禄
Owner 福州米立科技股份有限公司
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