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Double-unit control method and system and special air conditioner

A control method and control system technology, which is applied in the field of electronic control equipment, can solve the problems of unreliable switching of dual units, and achieve the effects of high success rate of unit switching, strong anti-interference ability, and reliable system

Pending Publication Date: 2021-12-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a dual-unit control method, system and special air conditioner to solve the problem of unreliable switching of dual-units in the prior art

Method used

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  • Double-unit control method and system and special air conditioner
  • Double-unit control method and system and special air conditioner
  • Double-unit control method and system and special air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] figure 1 is a flow chart of a dual-unit control method shown according to an exemplary embodiment, the method is applied to the first unit, such as figure 1 As shown, the method includes:

[0071] Step S11, detecting the running state of the first unit;

[0072] Step S12, when the operating state of the first unit is on, and the operating state needs to be switched from on to off, output a switch signal to the second unit through the first switch element, so that the second unit detects the switch start after the signal, and feed back another switch signal through the second switch element after normal start;

[0073] Step S13, after receiving the switch signal fed back by the second unit, shut down the first unit;

[0074] The first switching element is connected between the output end of the first set and the input end of the second set;

[0075] The second switching element is connected between the output of the second group and the input of the first group.

[...

Embodiment 2

[0096] Figure 4 is a schematic block diagram of a unit control system 100 shown according to an exemplary embodiment, such as Figure 4 As shown, the system 100 includes:

[0097] A detection module 101, configured to detect the operating state of the first unit;

[0098] The output module 102 is configured to output a switching signal to the second unit through the first switch element when the operating state of the first unit is on and the operating state needs to be switched from on to off, so that the second unit detects Start starting after the switching signal, and feed back another switching signal through the second switching element after normal starting;

[0099] The switching module 103 is configured to close the first unit after receiving the switch signal fed back by the second unit;

[0100] The first switching element is connected between the output end of the first set and the input end of the second set;

[0101] The second switching element is connected...

Embodiment 3

[0112] Figure 5 is a flow chart of a dual-unit control method shown according to another exemplary embodiment, the method is applied to the second unit, such as Figure 5 As shown, the method includes:

[0113] Step S21, detecting the running state of the second unit, and whether the input terminal connected to the first switching element receives the switch signal sent by the first unit;

[0114] Step S22, when the operating state of the second unit is off and the switch signal sent by the first unit is received, the second unit is started, and after the second unit starts normally, another switch signal is fed back through the second switch element, so that the first unit closes the first unit after receiving the feedback switch signal;

[0115] The first switching element is connected between the output end of the first set and the input end of the second set;

[0116] The second switching element is connected between the output of the second group and the input of the ...

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PUM

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Abstract

The invention relates to a double-unit control method and system and a special air conditioner. In the control method, a first unit and a second unit transmit switching signals through a switching element, so that the double units confirm switching signals mutually, and the situation that all units are shut down due to unit switching failure is effectively prevented. Compared with the technical scheme of double-unit switching by transmitting communication signals in the prior art, the technical scheme provided by the invention has the advantages that the anti-interference capability is higher, the unit switching success rate is higher, and the system is more reliable.

Description

technical field [0001] The invention relates to the technical field of electric control equipment, in particular to a dual-unit control method, system and special air conditioner. Background technique [0002] The dual unit operation is a networking scheme proposed to improve the stability of the system. [0003] Taking the special air conditioner as an example, the customer of the special air conditioner proposed that the two air conditioner units should serve as backups for each other regardless of their priority, and that they should be switched immediately every X hours to ensure that at least one air conditioner unit is always in operation during use. This requirement can be achieved by using conventional communication, but if there are high radiation and strong magnetic fields in the customer's usage scene, it may interfere with the communication and cause the air conditioning unit to fail to switch. [0004] Among them, the special air-conditioning unit is a refriger...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042F24F11/49F24F11/61F24F11/70F24F11/88
CPCG05B19/0423F24F11/49F24F11/70F24F11/61F24F11/88G05B2219/25257
Inventor 梁嘉乐张纾晗潘扬明王伟华滕泽宇
Owner GREE ELECTRIC APPLIANCES INC