Power carrier communication technology-based building intercom system

Abstract

The invention discloses a power carrier communication technology-based building intercom system, which comprises indoor extensions, a unit door phone and a center host, wherein the indoor extensions are arranged in houses of each layer of a building; the unit door phone is arranged at the unit door of the building; the center host is arranged in a property management center; and signal carrier transmission communication between the intercom equipment of the indoor extensions, the unit door phone, the center host and the like is realized through power lines. According to the system, the power lines are connected between the intercom equipment instead of the conventional signal lines, the use of intermediate fittings such as switches or floor protectors in the conventional building intercom system is eliminated, and voltage carried by the power lines has the function of supplying power to each piece of intercom equipment, so that laid pipelines of the building intercom system are greatly reduced, and cost is saved. In addition, various functions of the building intercom system can be realized only by connecting each piece of intercom equipment of the system to a power carrier bus, so that the building intercom system is easy to design and construct and convenient to maintain, and the post expansion and improvement of the building intercom system are facilitated.

Description

Technical field: [0001] The invention relates to a building intercom system, in particular to a building intercom system based on power carrier communication technology. Background technique: [0002] At present, most intelligent security communities generally adopt visual building intercom systems. These systems can realize the communication between visitors and owners through the communication between the indoor station and the door station of the unit, and avoid the entry of idlers, thereby improving the security level of the community. . [0003] However, it is well known that the currently used video intercom system, whether it is an analog system or a digital system, realizes signal transmission through a wired connection such as a network cable or a signal line. [0004] Such as figure 1 As shown, in the traditional analog visual building intercom system 1, the intercom equipment (door station 10, indoor extension 11, central host 12) transmits audio, video and cont...

AI Technical Summary

Problems solved by technology

The system overcomes the need to install floor protectors and other accessories or switches in the middle of the intercom equipment in the prior art building intercom system, and at least two types of wires, power lines and signal lines, are required for signal transmission and power supply, and a large number of lines need to be laid, costing a lot of money. Higher and not conducive to the defect of line design and maintenance, the signal transmission and power supply are realized through the power line by means of power carrier signal transmission

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