CN110553346A - Control method, control device, multi-online system and readable storage medium - Google Patents
Control method, control device, multi-online system and readable storage medium Download PDFInfo
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- CN110553346A CN110553346A CN201910879545.7A CN201910879545A CN110553346A CN 110553346 A CN110553346 A CN 110553346A CN 201910879545 A CN201910879545 A CN 201910879545A CN 110553346 A CN110553346 A CN 110553346A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method, a control device, a multi-split system and a computer readable storage medium, wherein the control method is suitable for the multi-split system and comprises the following steps: controlling the multi-online system to enter a defrosting mode; in the defrosting mode, at least one part of indoor units in a standby state is controlled to operate in a cooling mode. By the technical scheme, the defrosting process of the outdoor unit is accelerated, the defrosting time is shortened, the waiting time for the indoor unit to stop in normal heating is shortened, an external heat source is not required to be added for heating and defrosting the outdoor unit, the heating effect is not influenced, the energy consumption is reduced, and the production cost of an enterprise and the use cost of a user are saved.
Description
Technical Field
The invention relates to the technical field of household control, in particular to a control method, a control device, a multi-split system and a computer readable storage medium.
Background
At present, when a multi-split air conditioning system is heated to the state that defrosting is needed, in order to avoid blowing cold air indoors and reduce the influence on the comfort of users, the prior art scheme is to add an external heat source, namely add electric auxiliary heat, but increase extra equipment and energy consumption; the other is to add a phase-change energy storage material to release heat during defrosting, but this will add extra equipment, and will absorb part of the heat originally provided to the room during energy storage, thus reducing the normal heating effect.
Disclosure of Invention
In order to solve at least one of the above technical problems, a first object of the present invention is to provide a control method.
A second object of the present invention is to provide a control apparatus for a multi-split system.
A third object of the present invention is to provide a multi-split system.
It is a fourth object of the present invention to provide a computer-readable storage medium.
the control method provided by the technical scheme of the first aspect of the invention is suitable for a multi-split system, the multi-split system comprises an outdoor unit and a plurality of indoor units connected with the outdoor unit, and the control method comprises the following steps: controlling the multi-online system to enter a defrosting mode; and in the defrosting mode, controlling at least one part of the indoor unit in a standby state to operate in a cooling mode.
In the defrosting mode, by controlling at least a part of the indoor units in the standby state to operate in the cooling mode, the control method provided by the technical scheme of the first aspect of the invention can absorb heat from the room where the part of the indoor units are located, thereby improving the defrosting effect and speed, further accelerating the defrosting process of the outdoor unit, shortening the defrosting time, reducing the time for the indoor units to stop and wait during normal heating, and enabling the temperature of the room with heating requirement to be more stable. Meanwhile, according to the technical scheme, an external heat source is not required to be added to heat and defrost the outdoor unit, the heating effect is not influenced, the energy consumption is reduced, and the production cost of an enterprise and the use cost of a user are saved.
It is worth to be noted that the indoor unit operates in a cooling mode, which means that the indoor heat exchanger of the indoor unit is used as an evaporator for absorbing heat; or the indoor heat exchanger of the indoor unit is used as an evaporator for absorbing heat, and the indoor fan of the indoor unit operates.
In addition, the control method in the above technical solution provided by the present invention may further have the following additional technical features:
In the above technical solution, controlling at least a part of the indoor units in a standby state to operate in a cooling mode specifically includes: and controlling the indoor unit which is in the standby state and meets the operation condition to operate in a cooling mode.
In the defrosting mode, all the indoor units in the standby state are not operated in the cooling mode, but whether the indoor units meet the operation conditions or not needs to be judged first, and the indoor units are operated in the cooling mode under the condition that the operation conditions are met, so that the indoor heat exchanger can be prevented from absorbing heat or the indoor fan is prevented from suddenly working to cause adverse effects on the indoor units or users of rooms where the indoor units are located. Such as: the indoor unit in the standby state is limited to a certain extent and cannot start a refrigeration mode at will; or the room where the indoor unit in the standby state is located has certain limitation on the environment, and the cooling mode cannot be started along with the room.
In the above technical solution, the operating conditions include: the indoor unit in the standby state meets the set operation condition.
the operation conditions comprise operation conditions set by the indoor unit, when the indoor unit in the standby state meets the set operation conditions, the indoor heat exchanger of the indoor unit, or the indoor heat exchanger and the indoor fan can operate in the defrosting mode, so that the indoor heat exchanger or the indoor heat exchanger and the indoor fan are prevented from working suddenly to damage the original set mode of the indoor unit, and adverse effects are caused on the indoor unit. Such as: when the indoor fan of the indoor unit in the standby state continuously operates for a long time and is in an overheat state, or the indoor heat exchanger stores more dirt and needs descaling, or the indoor fan is stopped to prevent cold air from being blown out, or the air outlet of the indoor fan is closed to prevent cold air from being blown out, or the air duct of the indoor unit is blocked, and the like, if the indoor fan is suddenly started, the indoor unit may be failed or damaged, and the indoor fan cannot operate at the moment, so that the overall operation safety of the multi-split system is effectively improved.
In the above technical solution, the setting the operation condition includes: the cold air prevention function of the indoor unit is turned off.
Because the indoor fan of the indoor unit which is turned on with the cold air prevention function does not allow cold air to be blown outwards, which is equivalent to the arrangement of forced cold air prevention, the indoor unit which is in a standby state and is turned on with the cold air prevention function cannot operate in a refrigeration mode in the defrosting mode of the multi-split air system. In other words, even if the indoor unit is in the standby state, but the set operation condition is not satisfied, the indoor heat exchanger and the indoor fan of the indoor unit cannot participate in the defrosting mode, and the indoor heat exchanger and the indoor fan of the indoor unit which are in the standby state and have the cold air prevention function turned off can participate in the defrosting mode, so that the quick defrosting of the multi-split system is ensured, and meanwhile, the indoor fan of the indoor unit which has the cold air prevention function turned on cannot be influenced or damaged.
The cold-proof setting mode includes but is not limited to setting on the controller, the indoor set mainboard dial-up, the card switch and other manually controlled control components.
in any of the above technical solutions, the operating conditions include: and the environment of the indoor unit in the standby state meets the set working condition.
the environment of the indoor unit in the standby state meets the set working condition, and the indoor heat exchanger and the indoor fan of the indoor unit can work in the defrosting mode, so that adverse effects on the environment of a room where the indoor unit is located and the influence on users in the room can be avoided. The indoor unit is located in an environment meeting the set working condition, including but not limited to, when no person is in the room where the indoor unit is located, or a person is located but the position of the person is not at the air outlet of the indoor fan, or the temperature in the room where the indoor unit is located is lower than the temperature of cold air blown by the indoor fan, and the like, so that the indoor fan is ensured not to influence the user when the cold air is blown by the indoor fan.
In the above technical solution, the set working condition includes: the indoor unit is located in an environment without people, and the duration is longer than a set duration threshold.
Namely: when the situation that the environment where the indoor unit in the standby state is located is detected to be free of activities and the duration is longer than a set duration threshold value, the indoor unit can operate in a cooling mode, and otherwise, the indoor unit still keeps in the shutdown state. Because no person is in the room where the indoor unit in the standby state is located, or the user stays in the room for a short time without reaching the set time length threshold value, the indoor unit operates in the cooling mode and does not blow cold air to the user, and therefore negative effects on the user are avoided.
Alternatively, whether or not a person is present in the room may be determined by a human detection sensor. Such as: whether the environment that detects indoor set through hot infrared human sensor is located someone, hot infrared human sensor is a detection static human body, by lens, sensing element, induction circuit, mechanical part and mechanical control part constitute, drive infrared induction part through mechanical control part and mechanical part and do little left and right sides or circular motion, can form relative removal between messenger's inductor and the human body, so no matter the human body is removal or static, sensing element all can produce polarization pressure difference, induction circuit sends someone identification signal, reach the purpose of detecting static human body. Or, the signal can be collected by a camera, a recorder and other equipment to confirm whether a person is in the room.
In the above technical solution, the set working condition further includes: the temperature of the environment where the indoor unit is located is smaller than a set temperature threshold.
Namely: when the situation that the environment where the indoor unit in the standby state is located is unmanned and the duration is longer than the set duration threshold value and the environment temperature where the indoor unit is located is lower than the set temperature threshold value is detected, the indoor unit can operate in the refrigeration mode, and otherwise, the indoor unit is still in the shutdown state. When the ambient temperature of the indoor unit is lower than a set temperature threshold (which can be the lower limit of a human body comfort range), it is indicated that the room has no need for heating, and it is further proved that the room is unmanned, so that the room is not adversely affected when cold air is blown out from the indoor unit, and the indoor unit can operate in a cooling mode.
In the above technical solution, the judging whether the indoor unit in the standby state meets the operating condition specifically includes: firstly, judging whether the indoor unit in the standby state meets set operating conditions or not, and then judging whether the indoor unit in the standby state meets set working condition conditions or not.
Whether the indoor unit in the standby state meets the self-set operation condition is judged, if yes, whether the indoor unit in the standby state is provided with cold-proof wind is judged, and if not, whether the indoor unit in the standby state meets the set working condition is judged, and if no person exists in a room where the indoor unit in the standby state is located, the use safety of the indoor unit can be ensured, and cold wind can be prevented from blowing to a user.
In any of the above technical solutions, controlling at least a part of the indoor units in a standby state to operate in a cooling mode specifically includes: and controlling the indoor fan of at least one part of the indoor unit in the standby state to operate.
in the defrosting mode, when the indoor unit in the standby state operates in the cooling mode, the indoor fan of the indoor unit is started, so that the heat exchange effect of the corresponding indoor unit is improved, the heat absorption capacity is improved, the defrosting progress is accelerated, and the defrosting time is shortened.
A technical solution of a second aspect of the present invention provides a control apparatus for a multi-split system, including: a memory and a processor; the memory for storing program code; the processor is configured to invoke the program code to execute the steps of the control method according to any one of the technical solutions of the first aspect.
The technical scheme of the third aspect of the invention provides a multi-split system, which comprises the control device of the second aspect.
An aspect of the fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method according to any one of the aspects of the first aspect.
One or more technical solutions provided by the present application have at least the following technical effects or advantages:
(1) The defrosting process of the outdoor unit is accelerated, the defrosting time is shortened, the time for the indoor unit to stop waiting during normal heating is reduced, and the room temperature with heating requirements is more stable.
(2) The outdoor unit is not required to be additionally provided with an external heat source for heating and defrosting, so that the heating effect is not influenced, the energy consumption is reduced, and the production cost of an enterprise and the use cost of a user are saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart diagram of a control method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a control method according to another embodiment of the present invention;
Fig. 3 is a schematic block diagram of a control device according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the names of the components in fig. 3 is:
30 control device, 302 memory, 304 processor.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method, a control apparatus, a multi-online system, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 3.
As shown in fig. 1, a control method according to an embodiment of the first aspect of the present invention is applicable to a multi-split system, where the multi-split system includes an outdoor unit and a plurality of indoor units connected to the outdoor unit, and the control method includes:
Step 102: controlling the multi-online system to enter a defrosting mode;
Step 104: in the defrosting mode, at least one part of indoor units in a standby state is controlled to operate in a cooling mode.
The control method provided by the embodiment of the first aspect of the present invention is applicable to a multiple on-line system, and the control method includes steps 102 and 104, where the step 102 is: controlling the multi-online system to enter a defrosting mode; step 104 is: and controlling at least one part of indoor units in the standby state to operate in a cooling mode.
Specifically, when the multi-split air conditioning system enters a defrosting mode, at least one part of indoor units in a standby state is controlled to operate in a cooling mode, and heat can be absorbed from a room where the part of indoor units are located, so that the defrosting effect and speed can be improved, the defrosting process of an outdoor unit can be accelerated, the defrosting time can be shortened, the time for the indoor units to stop and wait during normal heating can be shortened, and the temperature of the room with heating requirements can be more stable. Meanwhile, the control method provided by the application does not need to add an external heat source (such as electric auxiliary heat or a phase change energy storage material) to heat and defrost the outdoor unit, so that the heating effect is not influenced, the energy consumption is reduced, and the production cost of an enterprise and the use cost of a user are saved.
It is worth to be noted that the indoor unit operates in a cooling mode, which means that the indoor heat exchanger of the indoor unit is used as an evaporator for absorbing heat; or the indoor heat exchanger of the indoor unit is used as an evaporator for absorbing heat, and the indoor fan of the indoor unit operates.
further, controlling at least a part of the indoor units in a standby state to operate in a cooling mode specifically includes: and controlling the indoor fan of at least one part of the indoor unit in the standby state to operate.
in the defrosting mode, when the indoor unit in the standby state operates in the cooling mode, the indoor fan of the indoor unit is started, so that the heat exchange effect of the corresponding indoor unit is improved, the heat absorption capacity is improved, the defrosting progress is accelerated, and the defrosting time is shortened.
example one
Controlling at least one part of indoor units in a standby state to run in a cooling mode, specifically: and controlling the indoor unit which is in the standby state and meets the operation condition to operate in a cooling mode.
In the defrosting mode, whether the indoor unit meets the operation condition needs to be judged firstly, but not all the indoor units in the standby state run in the cooling mode, and only when the operation condition is met, the indoor units run in the cooling mode, so that the indoor heat exchanger can be prevented from absorbing heat or the indoor fan can be prevented from suddenly working to cause adverse effect on the indoor unit or the user of the room where the indoor unit is located. Such as: the indoor unit in the standby state is limited to a certain extent and cannot start a refrigeration mode at will; or the room where the indoor unit in the standby state is located has certain limitation on the environment, and the refrigeration mode cannot be started along with the room.
Further, the operating conditions include: the indoor unit in the standby state meets the set operation condition.
Namely: when the indoor unit in the standby state meets the set operation condition, the indoor heat exchanger or the indoor heat exchanger and the indoor fan of the indoor unit can work in the defrosting mode, so that the indoor heat exchanger or the indoor heat exchanger and the indoor fan are prevented from working suddenly to damage the original set mode of the indoor unit, and adverse effects are caused on the indoor unit. Such as: when the indoor fan of the indoor unit in the standby state continuously operates for a long time and is in an overheat state, or the indoor heat exchanger stores more dirt and needs descaling, or the indoor fan is stopped to prevent cold air from being blown out, or the air outlet of the indoor fan is closed to prevent cold air from being blown out, or the air duct of the indoor unit is blocked, and the like, if the indoor fan is suddenly started, the indoor unit may be failed or damaged, and the indoor fan cannot operate at the moment, so that the overall operation safety of the multi-split system is effectively improved.
specifically, setting the operating conditions includes: the cold air prevention function of the indoor unit is turned off as shown in fig. 2.
Because some standby indoor units are provided with the cold air prevention function, and the indoor fan of the indoor unit which is turned on with the cold air prevention function does not allow cold air to be blown outwards, which is equivalent to the arrangement of forced cold air prevention, the indoor unit which is in the standby state and is turned on with the cold air prevention function cannot operate in the refrigeration mode in the defrosting mode of the multi-split air-conditioning system. In other words, even if the indoor unit is in the standby state, but the set operation condition is not satisfied, the indoor heat exchanger and the indoor fan of the indoor unit cannot participate in the defrosting mode, and the indoor heat exchanger and the indoor fan of the indoor unit which are in the standby state and have the cold air prevention function turned off can participate in the defrosting mode, so that the quick defrosting of the multi-split system is ensured, and meanwhile, the indoor fan of the indoor unit which has the cold air prevention function turned on cannot be influenced or damaged.
Namely: after the indoor unit receives the defrosting requirement of the outdoor unit, the indoor fan of the indoor unit provided with the cold air prevention condition is not allowed to operate, and the indoor fan of the indoor unit which is not provided with the cold air prevention and is in a standby state can operate, so that the indoor fan of the indoor unit provided with the cold air prevention condition cannot be influenced or damaged in the defrosting mode of the multi-split air conditioning system.
The cold-proof setting mode includes but is not limited to setting on the controller, the indoor set mainboard dial-up, the card switch and other manually controlled control components.
Example two
The difference from the first embodiment is that: the operating conditions include: the environment of the indoor unit in the standby state meets the set working condition.
The environment of the indoor unit is set with working conditions, and when the environment of the indoor unit in a standby state meets the set working conditions, the indoor heat exchanger and the indoor fan of the indoor unit can work, so that the adverse effect on the environment of a room where the indoor unit is located and the influence on a user in the room are avoided. The indoor unit is located in an environment meeting the set working condition, including but not limited to, when no person is in the room where the indoor unit is located, or a person but the position of the person is not at the air outlet of the indoor fan, or the temperature in the room where the indoor unit is located is lower than the temperature of cold air blown by the indoor fan, and the like, so as to ensure that the cold air blown by the indoor fan does not affect a user.
optionally, the set operating condition includes: the indoor unit is located in an environment without people, and the duration is longer than a set duration threshold.
When the situation that the environment where the indoor unit in the standby state is located is free of activities and the duration is longer than the set duration threshold value is detected, namely no activities are available in the room where the indoor unit is located, or the user stays in the room for a short time and does not reach the set duration threshold value, the indoor unit operates in the refrigeration mode and does not blow cold air to the user, and therefore negative effects cannot be generated on the user.
It is to be noted that, alternatively, whether or not a person is present in the room may be determined by a person detection sensor. Such as: whether the environment that detects indoor set through hot infrared human sensor is located someone, hot infrared human sensor is a detection static human body, by lens, sensing element, induction circuit, mechanical part and mechanical control part constitute, drive infrared induction part through mechanical control part and mechanical part and do little left and right sides or circular motion, can form relative removal between messenger's inductor and the human body, so no matter the human body is removal or static, sensing element all can produce polarization pressure difference, induction circuit sends someone identification signal, reach the purpose of detecting static human body. Or, the signal can be collected by a camera, a recorder and other equipment to confirm whether a person is in the room.
Further, the setting of the operating condition further includes: the temperature of the environment where the indoor unit is located is less than the set temperature threshold.
When the room where the indoor unit in the standby state is detected to be unmanned and the duration is longer than a set duration threshold (which can be the lower limit of a human body comfort range), it is indicated that the room has no requirement for heating, and meanwhile, the room is further proved to be unmanned, so that the room is not affected when cold air is blown out from the indoor unit, at the moment, the indoor unit can operate in a cooling mode, otherwise, the indoor unit is still in a shutdown state.
EXAMPLE III
The difference from the first embodiment is that: on the basis of the first embodiment, the contents of the second embodiment are combined.
Specifically, the operating conditions include: the indoor unit in the standby state meets the set operation condition, and the environment where the indoor unit in the standby state is located meets the set working condition (for example, the environment where the indoor unit is located is unmanned, the duration is greater than the set duration threshold, and the temperature of the environment where the indoor unit is located is less than the set temperature threshold).
Namely: when the multi-split system is in a defrosting mode, after the indoor unit receives the defrosting requirement of the outdoor unit, the indoor unit fan which runs a heating mode and is provided with a cold air preventing function stops; and the rest indoor units in the standby state judge whether people move in the room and continuously reach the set time through the human detection sensor, and judge whether the room temperature is lower than the lower limit of the comfort range. And when the room is detected to be free from activity for a certain time and the room temperature is lower than a preset value, allowing the fan of the standby indoor unit to operate during defrosting, otherwise, keeping the fan of the standby indoor unit in a stop state.
Specifically, the method for judging whether the indoor unit in the standby state meets the operation condition specifically comprises the following steps: firstly, judging whether the indoor unit in the standby state meets the set operation condition, and then judging whether the indoor unit in the standby state meets the set working condition.
In a specific example, as shown in fig. 2, the control method includes:
Step S202: and the standby internal machine receives a defrosting instruction.
Step S204: and judging whether the indoor unit in the standby state is provided with a forced cold air prevention function or not, if so, executing step S210, and otherwise, executing step S206.
Step S206: and judging whether a room where the standby indoor unit is located is unmanned and whether the duration Tn is greater than a set value Ts (namely a set time threshold), if so, performing step S208, otherwise, returning to step S210.
Step S208: it is determined whether the room temperature Tin at which the standby indoor unit is located is less than a set value T1 (i.e., a set temperature threshold), if so, step S212 is executed, and if not, step S210 is executed.
Step S210: the indoor fan stops operating, and the process returns to step S202.
Step S212: the indoor fan is controlled to operate, and the process returns to step S202.
Therefore, the use safety of the standby indoor unit is guaranteed, and the indoor unit can be prevented from blowing cold air to a user to cause discomfort to the user.
In short, when the multi-split air conditioning system operates to heat until defrosting is needed, after the indoor unit receives an outdoor unit defrosting instruction, the indoor unit operates the heating mode and the fan of the indoor unit with forced cold air prevention is stopped; and the rest of the indoor units in the standby state judge whether the room is occupied by people or not through the people detection sensor, the duration tn reaches the set time ts, and the room temperature Tin is lower than the set value T1 or not. When the room temperature Tin is lower than the preset value T1 after no human activity is detected in the room for a certain time, the fan of the standby inner machine is allowed to run during defrosting, otherwise, the fan of the standby inner machine still keeps a shutdown state, as shown in FIG. 2.
As shown in fig. 3, an embodiment of a second aspect of the present invention provides a control device 30 of a multi-split system, including: a memory 302 and a processor 304.
Wherein the memory 302 is used for storing program codes; the processor 304 is arranged to invoke program code to perform the steps of the control method as any one of the embodiments of the first aspect.
The embodiment of the third aspect of the present invention provides a multi-split system, which includes the control device 30 of the embodiment of the second aspect, and thus all the advantages of any of the above embodiments are provided, and no further description is provided herein.
An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor 304, implements the steps of the control method according to any one of the embodiments of the first aspect, so that all the advantages of any one of the embodiments described above are achieved, and are not described herein again.
In summary, in the control method provided by the present invention, in the defrosting mode, by turning on the indoor fans of at least a part of the indoor units in the standby state, heat can be absorbed from the room where the part of the indoor units are located, so as to improve the defrosting effect and speed, further accelerate the defrosting process of the outdoor unit, shorten the defrosting time, reduce the time for the indoor unit to stop waiting during normal heating, and make the room temperature with heating requirement more stable. Meanwhile, according to the technical scheme, an external heat source is not required to be added to heat and defrost the outdoor unit, the heating effect is not influenced, the energy consumption is reduced, and the production cost of an enterprise and the use cost of a user are saved.
as will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims and their equivalents, and it is intended that the invention encompass such changes and modifications as well.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A control method is suitable for a multi-split system, the multi-split system comprises an outdoor unit and a plurality of indoor units connected with the outdoor unit, and the control method comprises the following steps:
Controlling the multi-online system to enter a defrosting mode;
And in the defrosting mode, controlling at least one part of the indoor unit in a standby state to operate in a cooling mode.
2. The control method according to claim 1, characterized by controlling at least a part of the indoor units in standby mode to operate in cooling mode, in particular:
and controlling the indoor unit which is in the standby state and meets the operation condition to operate in a cooling mode.
3. The control method according to claim 2,
The operating conditions include: the indoor unit in the standby state meets the set operation condition.
4. The control method according to claim 3,
The set operating conditions include: the cold air prevention function of the indoor unit is turned off.
5. The control method according to any one of claims 2 to 4,
The operating conditions include: and the environment of the indoor unit in the standby state meets the set working condition.
6. The control method according to claim 5,
The set working condition comprises the following steps: the indoor unit is located in an environment without people, and the duration is longer than a set duration threshold.
7. The control method according to claim 6,
the set working condition further comprises: the temperature of the environment where the indoor unit is located is smaller than a set temperature threshold.
8. The control method according to claim 5, wherein the determining whether the indoor unit in the standby state satisfies the operation condition includes:
firstly, judging whether the indoor unit in the standby state meets set operating conditions or not, and then judging whether the indoor unit in the standby state meets set working condition conditions or not.
9. The control method according to any one of claims 1 to 4, wherein controlling at least a portion of the indoor units in the standby state to operate in a cooling mode specifically comprises:
And controlling the indoor fan of at least one part of the indoor unit in the standby state to operate.
10. A control device of a multi-split system, comprising: a memory and a processor;
The memory for storing program code;
the processor, configured to invoke the program code to perform the steps of the control method according to any one of claims 1 to 9.
11. A multi-split system comprising the control device as set forth in claim 10.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 1 to 9.
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| WO2023029457A1 (en) * | 2021-09-02 | 2023-03-09 | 广东美的暖通设备有限公司 | Defrost control method and device for multi-split system |
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