A method and system for priority control of a rear opening mode based on a household central air conditioner

Abstract

A method for prioritizing the operation of a residential central air conditioning unit in a later-start mode includes the following steps: setting a detection cycle; at the end of the detection cycle, acquiring the state change parameters of each indoor unit within that cycle; and adjusting the operation module of the outdoor unit based on the state change parameters. This invention adjusts the operation mode of the outdoor unit based on the later-input air conditioning commands, reducing the number of steps required for users to adjust the indoor units. This allows the indoor units to respond promptly to user commands, reduces indoor unit shutdowns, avoids unnecessary losses, and optimizes energy efficiency.

Description

Technical Field

[0001] This invention relates to the field of multi-split air conditioning control technology, and in particular to a method and system for prioritizing the operation of a residential central air conditioning system in a later-on mode. Background Technology

[0002] A multi-split air conditioning system is a central air conditioning system where an outdoor unit connects to multiple indoor units. These indoor units are distributed across different rooms or areas. When users set the operating mode of their indoor units, there's a possibility of setting different modes (cooling, dehumidifying, heating, or ventilation). Because there's only one outdoor unit, conflicts in user-set modes can occur. Current technologies prioritize cooling, heating, or on-demand modes, but in residential air conditioning applications, the desired mode may not always be achieved within the user's specified settings. Summary of the Invention

[0003] To address the aforementioned shortcomings, the present invention aims to propose a method and system for priority control of the later-on mode based on a residential central air conditioning system, thereby solving the problems of existing multi-split air conditioning systems, such as the inability to respond to user adjustments in a timely manner and the inconvenience of user adjustment operations.

[0004] To achieve this objective, the present invention adopts the following technical solution: a method for prioritizing the operation of a residential central air conditioning system in a later-on mode, comprising the following steps:

[0005] Set a detection cycle, and at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit during that detection cycle;

[0006] The operating mode of the outdoor unit of the air conditioner is adjusted according to the aforementioned state change parameters.

[0007] Preferably, the state change parameters include changes in the operating mode of the indoor unit and the number of indoor units that have changed.

[0008] Preferably, the operation mode of the outdoor unit of the air conditioner is adjusted according to the state change parameters as follows:

[0009] Step S1: Determine if the number of changed in-home units is 1. If the number of in-home units is 1, use that in-home unit as the reference in-home unit and execute step S2. If the number of in-home units is not 1, use all in-home units with changed operating modes as the reference in-home units and execute step S2.

[0010] Step S2: Determine whether the change in the operating mode of the reference indoor unit is the off mode. If it is the off mode, adjust the operating mode of the outdoor unit based on the other unchanged indoor unit operating modes. If it is not the off mode, obtain the priority of the operating modes in the reference indoor unit, take the operating mode with the highest priority as the reference mode, and adjust the operating mode of the outdoor unit based on the preset relationship between the reference mode and the outdoor unit operating mode.

[0011] Preferably, the specific steps for adjusting the operating mode of the external unit based on other unchanged indoor unit operating modes are as follows:

[0012] If at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes, then the current operating mode of the outdoor unit will be maintained.

[0013] When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

[0014] Preferably, the method further includes the following steps: when the operating mode of the outdoor unit of the air conditioner is modified, it is determined whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit. If there is a conflict, the conflicting indoor unit is turned off.

[0015] Preferably, the priority of the operating modes of the indoor unit of the air conditioner is: cooling > heating > dehumidification > air supply.

[0016] A system for prioritizing the operation of a residential central air conditioning system, using a method for prioritizing the operation of a residential central air conditioning system, includes a period setting module and an adjustment module.

[0017] The cycle setting module is used to set the detection cycle and, at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit within that cycle.

[0018] The adjustment module is used to adjust the operating mode of the outdoor unit of the air conditioner according to the state change parameters.

[0019] Preferably, the adjustment module includes a confirmation submodule and a setting submodule;

[0020] The confirmation submodule is used to determine whether the number of changed in-units is 1. If the number of in-units is 1, the in-unit is used as the reference in-unit; if the number of in-units is not 1, all in-units with changed operating modes are used as the reference in-units.

[0021] The setting submodule is used to determine whether the change in the operating mode of the reference indoor unit is a shutdown mode. If it is a shutdown mode, the operating mode of the outdoor unit is adjusted based on other unchanged indoor unit operating modes. If it is not a shutdown mode, the priority of the operating mode of the reference indoor unit is obtained, and the operating mode with the highest priority is used as the reference mode. Based on the preset relationship between the reference mode and the operating mode of the outdoor unit, the operating mode of the outdoor unit is adjusted.

[0022] Preferably, the submodule includes a first unit;

[0023] The first unit is used to maintain the current operating mode of the outdoor unit when at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes.

[0024] When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

[0025] Preferably, the submodule includes a second unit;

[0026] The second unit is used to determine whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit when the operating mode of the outdoor unit is modified. If there is a conflict, the conflicting indoor unit is turned off.

[0027] One of the above technical solutions has the following advantages or beneficial effects: The present invention adjusts the operating mode of the outdoor unit of the air conditioner based on the air conditioning command input later, reduces the number of operation steps for the user when adjusting the indoor unit of the air conditioner, enables the indoor unit of the air conditioner to respond to the user's adjustment command in a timely manner, reduces the problem of the indoor unit of the air conditioner stopping, avoids unnecessary losses, and optimizes the energy efficiency ratio. Attached Figure Description

[0028] Figure 1 This is a flowchart of one embodiment of the method of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of one embodiment of the system of the present invention. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] like Figures 1-2 As shown, a method for prioritizing the start-up mode of a residential central air conditioning system includes the following steps:

[0034] Set a detection cycle, and at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit during that detection cycle;

[0035] The operating mode of the outdoor unit of the air conditioner is adjusted according to the aforementioned state change parameters.

[0036] In existing multi-split air conditioning systems, there are priority modes such as cooling mode priority, heating mode priority, and first-to-start priority. When other indoor units of the air conditioner start in a certain operating mode, for example, if someone turns on heating in another place, the outdoor unit of the air conditioner will enter the heating operating mode. If other indoor units of the air conditioner need to cool at this time, they need to turn off the heating indoor unit or switch the operating mode of the heating indoor unit to cooling mode. Only in this way can the air conditioner cool down and respond to the user's adjustment commands in a timely manner.

[0037] To address the issue of outdoor air conditioners failing to respond promptly due to mode conflicts caused by indoor unit operating modes, this invention incorporates a detection cycle. When an indoor unit starts, its status change parameters are acquired based on this cycle. These parameters include the change in the indoor unit's operating mode and the number of indoor units affected. Once these parameters are obtained, the current operating mode change of the indoor unit can be determined, and the outdoor unit can be adjusted accordingly to immediately adapt to the indoor unit's operating mode.

[0038] This invention adjusts the operating mode of the outdoor unit of the air conditioner based on the air conditioning command input later, reducing the number of operation steps for users when adjusting the indoor unit. This allows the indoor unit to respond to the user's adjustment command in a timely manner, reduces the problem of indoor unit shutdown, avoids unnecessary losses, and optimizes the energy efficiency ratio.

[0039] In order to respond to the user's adjustment needs in a timely manner, the detection cycle can be set to 0.5~2S.

[0040] Preferably, the state change parameters include changes in the operating mode of the indoor unit and the number of indoor units that have changed.

[0041] Preferably, the operation mode of the outdoor unit of the air conditioner is adjusted according to the state change parameters as follows:

[0042] Step S1: Determine if the number of changed in-home units is 1. If the number of in-home units is 1, use that in-home unit as the reference in-home unit and execute step S2. If the number of in-home units is not 1, use all in-home units with changed operating modes as the reference in-home units and execute step S2.

[0043] Step S2: Determine whether the change in the operating mode of the reference indoor unit is the off mode. If it is the off mode, adjust the operating mode of the outdoor unit based on the other unchanged indoor unit operating modes. If it is not the off mode, obtain the priority of the operating modes in the reference indoor unit, take the operating mode with the highest priority as the reference mode, and adjust the operating mode of the outdoor unit based on the preset relationship between the reference mode and the outdoor unit operating mode.

[0044] Preferably, the specific steps for adjusting the operating mode of the external unit based on other unchanged indoor unit operating modes are as follows:

[0045] If at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes, then the current operating mode of the outdoor unit will be maintained.

[0046] When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

[0047] Since multiple users may adjust the indoor unit of the air conditioner during the testing period, different adjustment commands from multiple users may cause mode conflicts. Therefore, when adjusting, it is necessary to first determine whether the number of indoor units is 1. When there is only one reference indoor unit, there is no need to consider the conflict between adjustments. Then, the change in operating mode is judged. When the indoor unit's operating mode changes to the off mode, the operating modes of the remaining unchanged indoor units are considered. If there is an indoor unit in the on mode, the outdoor unit does not need to be turned off in order to keep it running. The outdoor unit maintains its current operating mode. If, after the reference indoor unit is turned off, all other unchanged indoor units are in the off mode, there is no need to turn on the outdoor unit. In this case, the outdoor unit's operating mode can be changed to the off mode.

[0048] When the indoor unit's operating mode changes to a non-off mode, it's necessary to determine the priority of the reference indoor unit and use the operating mode with the highest priority as the reference mode. For example, when there is more than one reference indoor unit, currently reference indoor unit 1 is adjusted to cooling mode, reference indoor unit 2 is adjusted to fan mode, and reference indoor unit 3 is adjusted to dehumidification mode. The priority of the indoor unit's operating modes is: cooling > heating > dehumidification > fan. In this case, the cooling mode is used as the reference mode, and then the outdoor unit's operating mode is adjusted based on the preset relationship between the reference mode and the outdoor unit's operating mode. The preset relationship can be set as follows:

[0049]

[0050] Therefore, based on the preset relationship, when the reference mode is the cooling operation mode, the outdoor unit's operation mode will be switched to the cooling operation mode.

[0051] Preferably, the method further includes the following steps: when the operating mode of the outdoor unit of the air conditioner is modified, it is determined whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit. If there is a conflict, the conflicting indoor unit is turned off.

[0052] Currently, when the operating mode of the outdoor unit of an air conditioner is switched, the operating mode of the outdoor unit may conflict with the operating mode of the indoor unit, which has not changed its operating mode. For example, after the outdoor unit of the air conditioner is switched to the cooling operating mode, the indoor unit in a certain room is in the heating operating mode. Since the heating and cooling operating modes conflict with each other, in order to avoid poor user experience, the indoor unit that conflicts with the existing outdoor unit's operating mode needs to be turned off.

[0053] Preferably, the priority of the operating modes of the indoor unit of the air conditioner is: cooling > heating > dehumidification > air supply.

[0054] A system for prioritizing the operation of a residential central air conditioning system, using a method for prioritizing the operation of a residential central air conditioning system, includes a period setting module and an adjustment module.

[0055] The cycle setting module is used to set the detection cycle and, at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit within that cycle.

[0056] The adjustment module is used to adjust the operating mode of the outdoor unit of the air conditioner according to the state change parameters.

[0057] Preferably, the adjustment module includes a confirmation submodule and a setting submodule;

[0058] The confirmation submodule is used to determine whether the number of changed in-units is 1. If the number of in-units is 1, the in-unit is used as the reference in-unit; if the number of in-units is not 1, all in-units with changed operating modes are used as the reference in-units.

[0059] The setting submodule is used to determine whether the change in the operating mode of the reference indoor unit is a shutdown mode. If it is a shutdown mode, the operating mode of the outdoor unit is adjusted based on other unchanged indoor unit operating modes. If it is not a shutdown mode, the priority of the operating mode of the reference indoor unit is obtained, and the operating mode with the highest priority is used as the reference mode. Based on the preset relationship between the reference mode and the operating mode of the outdoor unit, the operating mode of the outdoor unit is adjusted.

[0060] Preferably, the submodule includes a first unit;

[0061] The first unit is used to maintain the current operating mode of the outdoor unit when at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes.

[0062] When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

[0063] Preferably, the submodule includes a second unit;

[0064] The second unit is used to determine whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit when the operating mode of the outdoor unit is modified. If there is a conflict, the conflicting indoor unit is turned off.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for prioritizing the start-up mode of a residential central air conditioning system, characterized in that, Includes the following steps: Set a detection cycle, and at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit during that detection cycle; The operating mode of the outdoor unit of the air conditioner is adjusted according to the aforementioned state change parameters; The specific adjustments to the operating mode of the outdoor unit of the air conditioner based on the aforementioned state change parameters are as follows: Step S1: Determine if the number of changed in-home units is 1. If the number of in-home units is 1, use that in-home unit as the reference in-home unit and execute step S2. If the number of in-home units is not 1, use all in-home units with changed operating modes as the reference in-home units and execute step S2. Step S2: Determine whether the change in the operating mode of the reference indoor unit is the shutdown mode. If it is the shutdown mode, adjust the operating mode of the outdoor unit based on the other unchanged indoor unit operating modes. If it is not in shutdown mode, the priority of the operating mode in the reference indoor unit is obtained, and the operating mode with the highest priority is used as the reference mode. Based on the preset relationship between the reference mode and the operating mode of the outdoor unit, the operating mode of the outdoor unit is adjusted. The status change parameters include changes in the operating mode of the indoor unit and the number of indoor units that have changed.

2. The method for priority control of the last-on mode based on a residential central air conditioning system according to claim 1, characterized in that, The specific steps for adjusting the operating mode of the external unit based on other unchanged internal unit operating modes are as follows: If at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes, then the current operating mode of the outdoor unit will be maintained. When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

3. The method for prioritizing the start-up mode of a residential central air conditioning system according to claim 1, characterized in that, It also includes the following steps: when the operating mode of the outdoor unit is changed, determine whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit. If there is a conflict, shut down the conflicting indoor unit.

4. The method for priority control of the last-on mode based on a residential central air conditioning system according to claim 1, characterized in that, The priority of the operating modes of the indoor unit of the air conditioner is: cooling > heating > dehumidification > air supply.

5. A rear-start mode priority control system based on a residential central air conditioning system, characterized in that, The method for prioritizing the operation of a residential central air conditioning system based on the last-on mode as described in any one of claims 1 to 4 includes a cycle setting module and an adjustment module. The cycle setting module is used to set the detection cycle and, at the end of the detection cycle, obtain the status change parameters of each indoor air conditioner unit within that cycle. The adjustment module is used to adjust the operating mode of the outdoor unit of the air conditioner according to the state change parameters; The adjustment module includes a confirmation submodule and a setting submodule; The confirmation submodule is used to determine whether the number of changed in-units is 1. If the number of in-units is 1, the in-unit is used as the reference in-unit. If the number of indoor units is not 1, then all indoor units with different operating modes will be used as the reference indoor units; The setting submodule is used to determine whether the change in the operating mode of the reference indoor unit is a shutdown mode. If it is a shutdown mode, the operating mode of the outdoor unit is adjusted based on other unchanged indoor unit operating modes. If the unit is not in shutdown mode, the priority of the indoor unit's operating mode is obtained, and the operating mode with the highest priority is used as the reference mode. Based on the preset relationship between the reference mode and the outdoor unit's operating mode, the operating mode of the outdoor unit is adjusted.

6. A priority control system for the last-on mode of a residential central air conditioning system according to claim 5, characterized in that, The submodule is set up to include the first unit; The first unit is used to maintain the current operating mode of the outdoor unit when at least one indoor unit is in the "on" mode among the other unchanged indoor unit operating modes. When all indoor units in other unchanged indoor unit operating modes are in shutdown mode, the operating mode of the outdoor unit is changed to shutdown mode.

7. A priority control system for the last-start mode of a residential central air conditioning system according to claim 6, characterized in that, The submodule is set up to include the second unit; The second unit is used to determine whether there is a conflict between the operating mode of the outdoor unit and the operating mode of the indoor unit when the operating mode of the outdoor unit is modified. If there is a conflict, the conflicting indoor unit is turned off.

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