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A circuit control system, method and medium for the integration of main and sub-units of indoor units

A technology of circuit control and indoor unit, which is applied in the direction of closed-circuit television system, two-way line system station, transmission system, etc. It can solve the problem that the host and extension terminal users cannot adjust the position of the main extension in real time, and the difficulty of realizing point-to-point internal calls between the host and the extension. The number of hosts and extensions cannot be determined, so as to avoid abnormal networking work, reduce pressure on sellers and inventory, and improve flexibility and adjustment

Active Publication Date: 2021-06-08
深圳天地宽视信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the number of hosts and extensions in each market cannot be determined, which makes it difficult for the company to stock up
On the other hand, the existing indoor unit host and extension are set with a low degree of intelligence. Generally, the selection of the host and extension is realized through hardware methods such as jumper cap short circuit and dial switch, or a certain one is fixed as the host, the host and the extension terminal. Users are basically unable to adjust the location of the main extension in real time, and even make it difficult for the host and extension to realize point-to-point internal calls

Method used

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  • A circuit control system, method and medium for the integration of main and sub-units of indoor units
  • A circuit control system, method and medium for the integration of main and sub-units of indoor units
  • A circuit control system, method and medium for the integration of main and sub-units of indoor units

Examples

Experimental program
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Effect test

no. 1 example

[0043] see Figure 1-2 .

[0044] Such as figure 1 As shown, this embodiment provides a circuit control system for the integration of main and extension indoor units, including:

[0045] The power input module 100 is used to provide input power for the circuit device integrating the main and extension units of the indoor unit;

[0046] The power adjustment module 200 includes a rectifier bridge for realizing the non-polarity of the power supply and a π-type filter for improving the EMC anti-interference ability of the circuit;

[0047] The electronic inductance circuit module 300 is used to provide the corresponding working circuit ohmic impedance and DC voltage within the normal frequency range of the user's speech;

[0048]A circuit protection module 400, including a diode used to prevent leakage of electronic inductance circuits, an RC loop used to match audio and communication impedance, and a thermistor used for short circuit protection;

[0049] Constant current sour...

no. 2 example

[0070] see Figure 2-3 .

[0071] Such as image 3 As shown, this embodiment also provides a circuit control method for integrating the main and extension units of the indoor unit, which at least includes the following steps:

[0072] S101. Directly connect several indoor units that need to be connected together through two wires to complete the networking;

[0073] S102. Set the current indoor unit as the master, control the master constant current source switch of the indoor unit to turn on, disconnect the extension constant current source switch of the indoor unit, and switch the double-pole double-throw switch to the low-pass filter circuit module to make the input power Through the power adjustment module, electronic inductance circuit module, circuit protection module, host constant current source switch module, audio and communication bus module, low-pass filter circuit module, main extension switch module, video matching module, so as to provide the outdoor station a...

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Abstract

The invention discloses a circuit control system, method and medium for integrating main and extension units of an indoor unit. The system includes: a power input module, a power adjustment module, an electronic inductance circuit module, a circuit protection module, and a constant current source switch module , low-pass filter circuit module, current detection circuit module, main extension switching module, extension power supply circuit module, detection module, video matching circuit module, audio and communication bus module, two-wire BUS module and PIN interface module. The invention can use the non-polarity networking technology, the wiring is simple, the installation difficulty of the end user is reduced, the equipment circuit of the main extension of the indoor unit is unified, the pressure on the seller and the inventory is reduced, the main extension can be set and switched at will, and the main extension of the indoor unit is adaptive and flexible The effect of switching can avoid the problem of abnormal operation of the entire network after the host is damaged, improve flexibility and adjustability, adaptively detect the number of hosts and extensions, and avoid situations where multiple hosts or no hosts cause abnormal work.

Description

technical field [0001] The invention relates to the technical field of building indoor units, in particular to a circuit control system, method and medium for integrating main and extension units of an indoor unit. Background technique [0002] In modern life, with the continuous increase of residential quarters and the improvement of people's living standards, the demand for indoor walkie-talkies in residential quarters increases, and the functionality, operability and safety of building indoor units need to be further improved. A building indoor unit control system that can realize the effects of networking, setting and monitoring abnormalities. [0003] However, during the research and practice of the prior art, the inventors of the present invention found that the existing indoor units generally adopt polarized networking, and it is necessary to remember the connection sequence of each indoor unit, especially in multiple indoor units. When the indoor units are connected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04L12/40H04Q5/24H04N7/14H04N7/18
CPCH04B1/40H04L12/40006H04N7/147H04N7/186H04Q5/24
Inventor 虞成胡真稳刘乐乐
Owner 深圳天地宽视信息科技有限公司
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