CN113339951A - Multi-online operation and maintenance system - Google Patents
Multi-online operation and maintenance system Download PDFInfo
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- CN113339951A CN113339951A CN202110602083.1A CN202110602083A CN113339951A CN 113339951 A CN113339951 A CN 113339951A CN 202110602083 A CN202110602083 A CN 202110602083A CN 113339951 A CN113339951 A CN 113339951A
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- control
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- outdoor unit
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/40—Noise
Abstract
The invention discloses a multi-online operation and maintenance system, which comprises: the cloud platform comprises a user service system and an operation and maintenance management system communicated with the user service system, wherein the user service system receives fault information which is fed back by a user and related to refrigerant noise, and the operation and maintenance management system issues a control and regulation instruction according to the fault information; a network connector which is communicated with the cloud platform and an outdoor unit of the air conditioner respectively; the cloud platform issues a control regulation instruction to the outdoor unit through the network connector; the control regulating instruction is used for regulating the opening degree of the electronic expansion valve of each indoor unit which stops running, so that the noise of the refrigerant is reduced. According to the invention, the user service system receives the fault information about the refrigerant noise, the operation and maintenance management system directly outputs the control and regulation instruction to the outdoor unit according to the fault information, and the opening of the electronic expansion valve of the indoor unit which stops running can be controlled, so that the refrigerant quantity and the refrigerant noise of the system can be regulated.
Description
Technical Field
The invention relates to the technical field of operation, maintenance and control of air conditioners, in particular to a multi-split operation and maintenance system.
Background
Along with the development of industrial technologies towards the intelligent direction, a plurality of intelligent air conditioners are also appeared in the existing market, the air conditioners are accessed to the internet, the air conditioners can be conveniently controlled through mobile terminals such as mobile phones and tablet computers, and the technologies enable users and the air conditioners to achieve better interactive experience.
At present, the control of an air conditioner through an application program on a mobile terminal such as a mobile phone and a tablet personal computer is mainly realized by issuing a control instruction to a remote controller through a cloud platform and then sending the instruction to an outdoor unit through a remote controller. According to the remote control, the cloud platform is only used as a platform for storing and forwarding air conditioner data, the control logic only migrates parameters controlled by the remote controller to the cloud end, the final control effect is not obviously changed, and a user hardly obtains an additional control function, so that the control of the air conditioner based on the cloud computing has certain limitation.
In the air conditioner use, refrigerant noise problem often can appear, and the reason that produces refrigerant noise problem is various, wherein because the refrigerant noise that the refrigerant charge volume difference leads to the different production of velocity of flow, all need the scene to solve, according to the on-the-spot condition, the parameter of manual regulation air conditioning unit or adjust the refrigerant charge volume, extravagant a large amount of manpower and materials, and inefficiency, ageing poor, reduction user uses and experiences.
Disclosure of Invention
The invention aims to provide a multi-online operation and maintenance system, which receives fault information about refrigerant noise through a user service system, directly outputs a control and regulation instruction to an outdoor unit according to the fault information, can control the opening of an electronic expansion valve of an indoor unit which is stopped correspondingly, and realizes regulation of the refrigerant quantity and the refrigerant noise of the system.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the application relates to a multi-online operation and maintenance system, which is characterized by comprising:
the cloud platform comprises a user service system and an operation and maintenance management system communicated with the user service system, wherein the user service system receives fault information which is fed back by a user and is related to refrigerant noise, and the operation and maintenance management system issues a control and regulation instruction according to the fault information;
a network connector which is in communication with the cloud platform and an outdoor unit of an air conditioner, respectively;
the cloud platform issues the control regulation instruction to the outdoor unit through the network connector;
and the control and regulation instruction is used for regulating the opening degree of the electronic expansion valve of each indoor unit which stops running so as to reduce the noise of the refrigerant.
In some embodiments of the present application, the operation and maintenance management system opens a WEB control port;
and the operation and maintenance personnel log in the operation and maintenance management system through the WEB control port and issue the control and regulation instruction according to the fault information.
In some embodiments of the present application, the control adjustment command is that when the air conditioner is in a heating mode, an opening adjustment range of an electronic expansion valve of each indoor unit which is connected with the outdoor unit and stops operating is [ SO1, SO2], wherein SO1 is not less than SO 2;
the outdoor unit reduces the opening of the electronic expansion valve according to the opening adjusting range when the refrigerant is noisy;
and each indoor unit which stops running is shut down manually and stopped.
In some embodiments of the present application, there are a plurality of opening degree adjustment ranges corresponding to the plurality of selection commands, and each opening degree adjustment range is different;
and the control and adjustment instruction is an opening adjustment range under the selection instruction.
In some embodiments of the present application, the control adjustment command is that when the air conditioner is in a heating mode, an opening adjustment range of an electronic expansion valve of each indoor unit which is connected with the outdoor unit and stops operating is [ SO3, SO4], wherein SO3 is not less than SO 4;
the outdoor unit reduces the opening of the electronic expansion valve according to the opening adjusting range when the refrigerant is noisy;
and each indoor unit which stops running stops after the air conditioner reaches the set temperature.
In some embodiments of the present application, there are a plurality of opening degree adjustment ranges corresponding to the plurality of selection commands, and each opening degree adjustment range is different;
and the control and adjustment instruction is an opening adjustment range under the selection instruction.
Compared with the prior art, the multi-online operation and maintenance system provided by the application has the following advantages and beneficial effects:
(1) the method comprises the steps that a user service system in a cloud platform is used for receiving fault information which is fed back by a user and related to refrigerant noise and sending the fault information to an operation and maintenance management system, the operation and maintenance management system sends a control and adjustment instruction according to the fault information, the control and adjustment instruction is used for adjusting the opening degree of an electronic expansion valve of an indoor unit which stops running, the refrigerant noise is reduced, operation and maintenance personnel are prevented from carrying out on-site adjustment, manpower and material resources are saved, operation and maintenance timeliness is improved, and user experience is high;
(2) the cloud platform directly issues a control and regulation instruction to the outdoor unit, the instruction is prevented from being indirectly transmitted through a remote controller, and the outdoor unit directly controls the opening degree of an electronic expansion valve of the connected indoor unit which stops running according to the received instruction, so that the refrigerant quantity and the flow speed are adjusted, and the refrigerant noise is adjusted.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an embodiment of a multi-split operation and maintenance system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
[ basic operation principle of air conditioner ]
A refrigeration cycle of an air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of an air conditioner refers to a portion including a compressor of a refrigeration cycle and includes an outdoor heat exchanger, the indoor unit of an air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of an air conditioner.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
[ multiple online operation and maintenance System ]
In the present application, the air conditioner may refer to a multi-split air conditioner.
The multi-split air conditioner comprises at least one outdoor unit and at least one indoor unit connected through a refrigerant connecting pipeline.
In the present application, a description will be given of one outdoor unit and one or more indoor units as an example.
Referring to fig. 1, the present invention relates to a cloud platform, a network connector, an outdoor unit, and an indoor unit.
The cloud platform is communicated with the network connector, and the network connector is also communicated with the outdoor unit, so that the cloud platform and the outdoor unit can be communicated with each other through the network connector.
That is, the cloud platform can issue the control instruction to the outdoor unit through the network connector, and the operation state data of the outdoor unit can also be uploaded to the cloud platform through the network connector.
Network connectors include, but are not limited to, connecting to cloud platforms via NB-IoT, 4G, 5G, etc. communication.
The terminal (such as a mobile phone, a pad or a computer) can be connected to the cloud platform through a network connection device such as a router or a gateway.
The terminal is loaded with an application program APP for controlling the air conditioner and monitoring the running state of the air conditioner, a user can issue a control instruction to the air conditioner through the APP, and the APP can read data about the running state of the outdoor unit/indoor unit on the cloud platform.
With continued reference to fig. 1, the cloud platform includes a user service system and an operation and maintenance management system.
User service system
The user service system is used for receiving fault information which is fed back by a user and related to the refrigerant noise, and the fault information can be converted into an operation and maintenance order which can be identified by the operation and maintenance management system.
Operation and maintenance management system
The operation and maintenance management system is in communication connection with the user service system and used for receiving operation and maintenance orders from the user service system and knowing current fault information fed back by the user.
And the operation and maintenance management system outputs a control and regulation instruction according to the fault information and directly sends the control and regulation instruction to the outdoor unit.
In some embodiments of the application, the operation and maintenance management system opens a WEB control port, and operation and maintenance personnel can log in the operation and maintenance management system through the WEB control port to check fault information and issue a control and adjustment instruction according to the fault information.
And the operation and maintenance personnel can visually output the fault information processing result according to the logged main interface of the operation and maintenance management system, and can also check the running state of the unit through the main interface, so that the remote real-time monitoring of the unit is realized.
Or at the main interface, the accessible cloud resources are different according to different levels of operation and maintenance personnel, and the control authority is not the same.
The specific operation and maintenance personnel access the WEB control port through the public network, after inputting the account number and the password, the operation and maintenance management system is permitted to enter, and the background can feed back detection data within the authority range of the operation and maintenance personnel, so that the related unit operation data can be read.
The unit operation data mainly comprises main operation parameters of the unit (such as press frequency, real-time current value, indoor unit operation parameters, outdoor unit operation parameters and the like).
Control adjustment instruction
The opening degree of an electronic expansion valve in each stopped indoor unit connected with the outdoor unit is adjusted by controlling the adjusting instruction, so that the refrigerant quantity in the system is adjusted, and the refrigerant noise is reduced.
When the multi-split air-conditioning system is in a heating mode, the quantity of the refrigerant is stored in the stopped indoor units, and the opening degree of the electronic expansion valve in each stopped indoor unit is adjusted so as to adjust the stored quantity of the refrigerant and the flow rate of the refrigerant in the stopped indoor units.
The larger the opening degree of the electronic expansion valve is, the smaller the amount of refrigerant stored in the indoor unit which is stopped, the higher the flow speed is, and the higher the refrigerant flow noise is.
When the refrigerant quantity is not appropriate in the multi-split system, the control and regulation instruction is issued to carry out regulation.
When the refrigerant quantity of the multi-split air conditioner system is small, the opening degree of an electronic expansion valve of an indoor unit which stops running is increased, so that the refrigerant quantity entering the system circulation is increased; when the refrigerant quantity of the multi-split air-conditioning system is large, the opening degree of an electronic expansion valve of the indoor unit which stops running is reduced, so that the refrigerant quantity entering the system circulation is reduced.
When the noise of the refrigerant is high, the opening degree of an electronic expansion valve of the indoor unit which stops running is reduced, so that the amount of the refrigerant entering the system for circulation is reduced, and the flowing noise of the refrigerant is reduced.
When the multi-split system is in a heating mode, the control and regulation instruction is divided into two different regulation modes according to different shutdown modes of the indoor unit.
< adjustment mode in Manual shutdown >
In the multi-split air-conditioning system, one outdoor unit W and two indoor units a1 and a2 are exemplified, and one indoor unit a1 is stopped by manual shutdown.
After the cloud platform receives fault information about refrigerant noise fed back by a user, a control and regulation instruction is directly issued to the outdoor unit W.
The control regulation command may refer to an opening regulation range [ SO1, SO2] of an electronic expansion valve of the indoor unit a1 which is out of operation and connected to the outdoor unit W, wherein SO1 is not more than SO 2.
In the opening degree adjusting range [ SO1, SO2], when the refrigerant quantity is inappropriate, the opening degree of the electronic expansion valve is adjusted, and when the refrigerant quantity is small, the opening degree of the electronic expansion valve is increased; when the refrigerant quantity is large, the opening degree of the electronic expansion valve is reduced.
When the noise of the refrigerant is high, the opening degree of the electronic expansion valve is reduced, so that the amount of the refrigerant entering the system for circulation is reduced, and the flowing noise of the refrigerant is reduced.
The control adjustment instruction can issue a certain opening adjustment range in a plurality of different opening adjustment ranges according to different selection instructions.
The corresponding relation between the selection instruction and the opening degree adjusting range is preset in the outdoor unit.
For example, a data table in which the selection command corresponds to the opening degree adjustment range may be stored in the outdoor unit.
The opening degree adjusting range under the selection instruction can be obtained through table lookup.
Three different opening degree adjustment ranges are exemplified for explanation.
For example, the control adjustment command may refer to an opening adjustment range [ SO1, SO2] of the electronic expansion valve of the stopped indoor unit a1 connected to the outdoor unit W corresponding to the selection command SO (1), where SO1 is not more than SO 2;
the control regulation command may also refer to a selection command SO (1') for the opening regulation range [ SO1', SO2' ] of the electronic expansion valve of the indoor unit a1 which is out of operation and connected to the outdoor unit W, wherein SO1' is not more than SO2 ';
the control regulation command may also refer to a selection command SO (1''), wherein SO1'' is less than or equal to SO2'', and the opening regulation range [ SO1'', SO2'' ] of the electronic expansion valve of the indoor unit A1 which is in a stop operation and is connected with the outdoor unit W is corresponding to the selection command SO (1 '');
wherein the opening degree adjustment ranges [ SO1, SO2], [ SO1', SO2' ] and [ SO1 ", SO 2" ] are different from each other.
< adjustment mode under temperature control shutdown >
In the multi-split air-conditioning system, one outdoor unit W and two indoor units a1 and a2 are taken as an example, and one indoor unit a1 is stopped by temperature-controlled shutdown.
The temperature-controlled shutdown here refers to shutdown after the temperature of the air conditioner reaches a set temperature.
After the cloud platform receives fault information about refrigerant noise fed back by a user, a control and regulation instruction is directly issued to the outdoor unit W.
The control regulation command may refer to an opening regulation range [ SO3, SO4] of an electronic expansion valve of the indoor unit a1 which is out of operation and connected to the outdoor unit W, wherein SO3 is not more than SO 4.
In the opening degree adjusting range [ SO3, SO4], when the refrigerant quantity is inappropriate, the opening degree of the electronic expansion valve is adjusted, and when the refrigerant quantity is small, the opening degree of the electronic expansion valve is increased; when the refrigerant quantity is large, the opening degree of the electronic expansion valve is reduced.
When the noise of the refrigerant is high, the opening degree of the electronic expansion valve is reduced, so that the amount of the refrigerant entering the system for circulation is reduced, and the flowing noise of the refrigerant is reduced.
The control adjustment instruction can issue a certain opening adjustment range in a plurality of different opening adjustment ranges according to different selection instructions.
The corresponding relation between the selection instruction and the opening degree adjusting range is preset in the outdoor unit.
For example, a data table in which the selection command corresponds to the opening degree adjustment range may be stored in the outdoor unit.
The opening degree adjusting range under the selection instruction can be obtained through table lookup.
Three different opening degree adjustment ranges are exemplified for explanation.
For example, the control adjustment command may refer to an opening adjustment range [ SO3, SO4] of the electronic expansion valve of the stopped indoor unit a1 connected to the outdoor unit W corresponding to the selection command SO (3), where SO3 is not more than SO 4;
the control regulation command may also refer to a selection command SO (3') for the opening regulation range [ SO3', SO4' ] of the electronic expansion valve of the indoor unit a1 which is out of operation and connected to the outdoor unit W, wherein SO3' is not more than SO4 ';
the control regulation command may also refer to a selection command SO (3''), wherein SO3'' is less than or equal to SO4'', and the opening regulation range [ SO3'', SO4'' ] of the electronic expansion valve of the indoor unit A1 which is in a stop operation and is connected with the outdoor unit W is corresponding to the selection command SO (3 '');
wherein the opening degree adjustment ranges [ SO3, SO4], [ SO3', SO4' ] and [ SO3 ", SO 4" ] are different from each other.
According to the multi-split operation and maintenance system, the cloud platform can directly issue the control and regulation instruction to the outdoor unit according to the acquired fault information fed back by the user, the outdoor unit controls and regulates the opening degree of the electronic expansion valve of each indoor unit, corresponding to the outdoor unit, which stops running according to the selected opening degree regulation range, so that the refrigerant quantity in the system is regulated when the multi-split operation system heats, and the refrigerant noise is reduced by regulating the opening degree of the electronic expansion valve when the refrigerant noise is high.
As above, the fault problem of refrigerant noise is maintained through the long-range control regulation instruction that issues of cloud platform, the ageing is fast, and is efficient, and avoids fortune dimension personnel to adjust to the scene, uses manpower and materials and user latency sparingly, promotes the user and uses experience.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (6)
1. A multi-online operation and maintenance system is characterized by comprising:
the cloud platform comprises a user service system and an operation and maintenance management system communicated with the user service system, wherein the user service system receives fault information which is fed back by a user and is related to refrigerant noise, and the operation and maintenance management system issues a control and regulation instruction according to the fault information;
a network connector which is in communication with the cloud platform and an outdoor unit of an air conditioner, respectively;
the cloud platform issues the control regulation instruction to the outdoor unit through the network connector;
and the control and regulation instruction is used for regulating the opening degree of the electronic expansion valve of each indoor unit which stops running so as to reduce the noise of the refrigerant.
2. The multi-online operation and maintenance system according to claim 1,
the operation and maintenance management system opens a WEB control port;
and the operation and maintenance personnel log in the operation and maintenance management system through the WEB control port and issue the control and regulation instruction according to the fault information.
3. The multi-online operation and maintenance system according to claim 1,
the control regulation instruction is that when the air conditioner is in a heating mode, the opening regulation range of the electronic expansion valve of each indoor unit which is connected with the outdoor unit and stops running is [ SO1, SO2], wherein SO1 is not more than SO 2;
the outdoor unit reduces the opening of the electronic expansion valve according to the opening adjusting range when the refrigerant is noisy;
and each indoor unit which stops running is shut down manually and stopped.
4. The multi-online operation and maintenance system according to claim 3,
a plurality of opening degree adjusting ranges are provided corresponding to the plurality of selection instructions, and the opening degree adjusting ranges are respectively different;
and the control and adjustment instruction is an opening adjustment range under the selection instruction.
5. The multi-online operation and maintenance system according to claim 1,
the control regulation instruction is that when the air conditioner is in a heating mode, the opening regulation range of the electronic expansion valve of each indoor unit which is connected with the outdoor unit and stops running is [ SO3, SO4], wherein SO3 is not more than SO 4;
the outdoor unit reduces the opening of the electronic expansion valve according to the opening adjusting range when the refrigerant is noisy;
and each indoor unit which stops running stops after the air conditioner reaches the set temperature.
6. The multi-online operation and maintenance system according to claim 5,
a plurality of opening degree adjusting ranges are provided corresponding to the plurality of selection instructions, and the opening degree adjusting ranges are respectively different;
and the control and adjustment instruction is an opening adjustment range under the selection instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110602083.1A CN113339951A (en) | 2021-05-31 | 2021-05-31 | Multi-online operation and maintenance system |
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| CN202110602083.1A CN113339951A (en) | 2021-05-31 | 2021-05-31 | Multi-online operation and maintenance system |
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| CN113339951A true CN113339951A (en) | 2021-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114353260A (en) * | 2021-12-06 | 2022-04-15 | 青岛海尔空调电子有限公司 | Method and device for judging refrigerant quantity, air conditioner and storage medium |
| CN114427737A (en) * | 2022-01-25 | 2022-05-03 | 宁波奥克斯电气股份有限公司 | Air conditioner noise prevention control method and device and air conditioner |
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| CN107131617A (en) * | 2017-06-12 | 2017-09-05 | 广东美的暖通设备有限公司 | Control method, device and the computer-readable recording medium of air conditioner |
| WO2017185733A1 (en) * | 2016-04-25 | 2017-11-02 | 广东美的暖通设备有限公司 | Air conditioning system and valve control method therefor |
| CN112815406A (en) * | 2021-02-01 | 2021-05-18 | 青岛海信日立空调系统有限公司 | Outdoor machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011237057A (en) * | 2010-05-06 | 2011-11-24 | Aisin Seiki Co Ltd | Air conditioner |
| WO2017185733A1 (en) * | 2016-04-25 | 2017-11-02 | 广东美的暖通设备有限公司 | Air conditioning system and valve control method therefor |
| CN107131617A (en) * | 2017-06-12 | 2017-09-05 | 广东美的暖通设备有限公司 | Control method, device and the computer-readable recording medium of air conditioner |
| CN112815406A (en) * | 2021-02-01 | 2021-05-18 | 青岛海信日立空调系统有限公司 | Outdoor machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114353260A (en) * | 2021-12-06 | 2022-04-15 | 青岛海尔空调电子有限公司 | Method and device for judging refrigerant quantity, air conditioner and storage medium |
| CN114427737A (en) * | 2022-01-25 | 2022-05-03 | 宁波奥克斯电气股份有限公司 | Air conditioner noise prevention control method and device and air conditioner |
| CN114427737B (en) * | 2022-01-25 | 2023-08-18 | 宁波奥克斯电气股份有限公司 | Air conditioner noise-proof control method and device and air conditioner |
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Application publication date: 20210903 |