Video interphone and information releasing system for building

Abstract

A vedio-talkback and information publishing system for the building is composed of several sets of indoor machines, several decoders, outer gate machines, supervisors and central computer, in which includes the talkback audio frequency circuit, vedio frequency circuit, crystal lattice display circuit, alarm circuit, monitoring circuit and entrance guard system, all the abovesaid equipment being connected in the net by the communicating of 485 data bus mode, Each equipment will be connected to the data bus by their own data receiving-transmitting circuit to realize the mutual speaking with each other between the supervisor, indoor and outer gate machine, to realize the detection and control by control circuit as well as to realize decoding by decoder. The central processor of each equipment applies 51 series single chip computer and the circuit applies the modularization design to form a integration system for vedio shooting, talkback, alarm, leaving massage and information publishing of the building and various kinds of residential quarters.

Description

Technical field: [0001] The invention relates to a multifunctional combination system of telecommunication technology, in particular to a visual intercom and information release system applied to residential buildings. Background technique: [0002] The building anti-theft automatic door devices currently used in community or building management include intercom alarm systems, visual intercom systems, intercom automatic exchange systems, etc., including different combinations of various functional devices, for example, Chinese patent applications No. 94100458.9 "Multifunctional Home Video Intercom Alarm System", discloses a reasonable combination of video and infrared night vision circuits, automatic control circuits, high-resolution monitoring system, high-resolution automatic aperture and intercom doorbell system, It is a system composed of infrared night vision alarm system and the principle of sound, light and electricity. The system can realize highly sensitive automat...

AI Technical Summary

Problems solved by technology

[0003] The combination scheme of the above-mentioned prior art has not yet fully and effectively combined various functions to maximize economic benefits, such as the "message" function with image and sound collection and playback, especially without the need for additional wiring and additional hardware The function of "publishing public information in the community" can be realized at a low cost, which is the field that the building intercom system can be developed at present; and, how to make the design of each part of the device easy to expand the function and facilitate the system maintenance has not yet been seen. ideal design

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