Method for controlling multiple air-conditioned indoor units by using single wire control device

An air-conditioning indoor unit and indoor unit technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as high material costs and complicated installation procedures, and achieve simplified installation procedures and resource conservation , Save installation cost and material cost

Active Publication Date: 2012-01-18
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] like figure 1 As shown, when a single wire controller is used to control n air conditioner indoor units, n connecting wires are required to connect the wire controller with the air conditioner indoor units, the installation procedure is complicated, an

Method used

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  • Method for controlling multiple air-conditioned indoor units by using single wire control device
  • Method for controlling multiple air-conditioned indoor units by using single wire control device
  • Method for controlling multiple air-conditioned indoor units by using single wire control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] As shown in the figure, this embodiment controls three indoor units with a single wire controller, including the following steps:

[0022] (1) Connect the line and issue commands: connect indoor unit 1, indoor unit 2, and indoor unit 3 to the outdoor unit respectively, select indoor unit 1 as the transfer indoor unit and connect it to the wire controller, and the wire controller sends a signal to indoor unit 1. Control the start command of the indoor unit 3;

[0023] (2) Receive the command and analyze: Indoor unit 1 receives the power-on command from the wire controller and replies ACK, and then analyzes the address in the power-on command to find out that the address of the command is the same as that of indoor unit 3, and confirm that indoor unit 3 is the command pointing to target indoor unit;

[0024] (3) Transfer command: Indoor unit 1 forwards the power-on command to indoor unit 3, and indoor unit 3 receives the power-on command and replies with ACK...

Embodiment 2

[0028] The difference between this embodiment and Embodiment 1 is that in step (2) receiving and analyzing the command, the indoor unit 1 receives the power-on command from the wire controller and replies ACK, and then obtains the command by analyzing the address in the power-on command The address is the same as its own address, so the indoor unit 1 is changed from the transfer indoor unit to the target indoor unit, executes the power-on command, and sends the execution result back to the wire controller after the execution is completed, the wire controller receives and replies ACK, and the end is completed.

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PUM

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Abstract

The invention provides a method for controlling multiple air-conditioned indoor units by using a single wire control device. The method comprises the following steps: (1) connecting wires and sending out an order; (2) receiving the order and analyzing the order; (3) forwarding the order; (4) executing and feeding back; (5) returning an execution result. A control signal can be sent based on a CSMA/CD (carrier sense multiple access/collision detect) protocol, the order of the wire control device can be sent through indoor and outdoor buses, and one single wire control device can control multiple indoor units only by virtue of one connecting wire, thus the installation cost and material cost can be effectively reduced, and the phenomena of chaos communication and mistaken operation caused by control of multiple connecting wires can be avoided.

Description

technical field [0001] The invention relates to a communication control method for an air-conditioning equipment system, in particular to a control method for multiple indoor units sharing a single wire controller in an air-conditioning unit. Background technique [0002] At present, most commercial air conditioners adopt the form of wired remote control, which has the advantages of convenient operation, intuitive display and high reliability. According to the needs of users to improve the convenience and comfort of air conditioner control, a single wired remote control is used to control multiple indoor units, which is convenient for centralized operation and management. [0003] like figure 1 As shown, when a single wire controller is used to control n air conditioner indoor units, n connecting wires are required to connect the wire controller with the air conditioner indoor units. The air conditioner indoor unit distinguishes between different control commands, sometime...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 任兆亭王振刘振桥赵晓青
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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