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Building intercom system and method

A building intercom system and building intercom technology, which is applied in two-party line system stations, electrical components, telephone communications, etc., can solve problems such as high cost and complicated circuit design, and achieve cost reduction output, engineering construction and simple wiring , The effect of simple hardware

Active Publication Date: 2017-03-15
SHENZHEN FANHAI SANJIANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a building intercom system and method, which are used to solve the technical problem of complex circuit design and high cost in the prior art in which communication and power supply share one wiring.

Method used

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  • Building intercom system and method
  • Building intercom system and method
  • Building intercom system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Please refer to figure 2 , the present embodiment provides a building intercom system, including: an indoor unit 1, at least one outdoor unit 2, and a bus positive pole 3, wherein the indoor unit 1 and the outdoor unit 2 are connected to the bus positive pole 3, and the indoor unit 1 includes a main indoor Unit 1A, the main indoor unit 1A is used to control its communication with the outdoor unit 2 through the bus positive pole 3, and supply power to the outdoor unit 2.

[0047] Further, the indoor unit 1 also includes at least one sub-indoor unit 1B, and the main indoor unit 1A is also used to control the communication between the sub-indoor unit 1B and the outdoor unit 2 through the positive bus 3 .

[0048]In this embodiment, the power supply and communication are routed together, that is, the positive pole 3 of the bus is used as the power supply and communication line, and the indoor unit 1 and the outdoor unit 2 are both connected to the positive pole 3 of the bu...

Embodiment 2

[0051] This embodiment is a supplementary description based on the above embodiments.

[0052] This embodiment provides a building intercom system, wherein the main indoor unit 1A includes a first codec circuit for sending communication signals and collecting feedback information. Both the outdoor unit 2 and the auxiliary indoor unit 1B include a second codec circuit for decoding communication signals and sending feedback information.

[0053] Such as image 3 The first codec circuit shown includes a first branch, a second branch, a third branch and a fourth branch connected to the positive pole of the bus, wherein the first branch includes a first triode Q20, a second A diode D14, a first regulator transistor Z4 and a first resistor R97, the emitter of the first triode Q20 is connected to the anode of the first diode D14, and the cathode of the first diode D14 is connected to the bus anode , the base of the first triode Q20 is connected to the positive pole of the first vol...

Embodiment 3

[0064] Please refer to Figure 5 , this embodiment provides a building intercom method, including: the outdoor unit calls the indoor unit step:

[0065] Step 11, the outdoor unit sends a call request to the main indoor unit through the positive pole of the bus. In the idle state, the outdoor unit sends a call request to the main indoor unit by pulling current to the positive pole of the bus.

[0066] Step 12, after receiving the call request, the main indoor unit sends an inspection command to the positive pole of the bus.

[0067] The main indoor unit detects request signals from other devices (ie, outdoor units) from the positive pole of the bus, and the main indoor unit sends inspection instructions to the positive pole of the bus. The instructions sent by the master indoor unit include but are not limited to inspection instructions, call confirmation instructions and monitoring instructions. All instructions include information area and return code area. Among them, the ...

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Abstract

The invention discloses a building intercom system and method. The building intercom system comprises an indoor machine, at least one outdoor machine and a bus anode, wherein both the indoor machine, the outdoor machine are connected with the bus anode, the indoor machine comprises an main indoor machine, and the main indoor machine is used for controlling communication with the outdoor machine through the bus anode and providing power for the outdoor machine. According to the building intercom system and method provided by the invention, wiring for a power supply and communication is performed together, both the indoor machine and the outdoor machine are suspended to the bus anode, communication with the outdoor machine is controlled through the main indoor machine, and a power supply is provided for the outdoor machine. The building intercom system is simple in engineering construction and wiring, and realizes a simple and convenient hardware mode of power supply and communication superimposition. In a condition that multiple indoor machines correspond to multiple outdoor machines, the indoor machines and the outdoor machines are directly suspended to the bus anode, no additional intermediate equipment is required to be added, and the cost output can be reduced.

Description

technical field [0001] The invention relates to the technical field of building security, in particular to a building intercom system and method. Background technique [0002] At present, there are many types of building intercom doorbell systems on the market, and the implementation methods are different, each with its own advantages and disadvantages. The building intercom doorbell system is mainly composed of the following parts: indoor unit, outdoor unit, adapter, access control, etc. According to the presence or absence of video images, it can be divided into non-visual and visual building intercom doorbell systems; according to the implementation method, it can be divided into wireless and wired building intercom doorbell systems; according to the transmission technical characteristics, it can be divided into analog and digital building intercom doorbell systems system. At present, the non-visual intercom doorbell system still occupies a relatively large market share...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M11/02H04Q5/24
CPCH04M11/025H04Q5/24
Inventor 姚文虎雷名龙刘平陈建文
Owner SHENZHEN FANHAI SANJIANG TECH DEV
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