CN112146252A - Central air conditioner cooling regulation method, device and system based on-off valve - Google Patents
Central air conditioner cooling regulation method, device and system based on-off valve Download PDFInfo
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- CN112146252A CN112146252A CN202010989816.7A CN202010989816A CN112146252A CN 112146252 A CN112146252 A CN 112146252A CN 202010989816 A CN202010989816 A CN 202010989816A CN 112146252 A CN112146252 A CN 112146252A
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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
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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
- F24F11/62—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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
The invention is suitable for the technical field of central air conditioner temperature regulation, and provides a central air conditioner cold supply regulation method, a device and a system based on an on-off valve, wherein the method comprises the steps of acquiring the detected temperature of a room accessed to a central air conditioner, determining the difference value between the detected temperature and the set temperature according to the set temperature of the room, aiming at the on-off valve on a pipeline accessed to the central air conditioner of the room, determining the on-off ratio in a control period by utilizing the difference value, controlling the on-off valve to convey cold air to the room according to the on-off ratio, and realizing the purpose of accurately controlling the transmission flow of a cold air transmission pipeline under the condition that the on-off valve replaces a regulating valve.
Description
Technical Field
The invention belongs to the technical field of central air conditioner temperature regulation, and particularly relates to a central air conditioner cold supply regulation method, device and system based on an on-off valve.
Background
The existing central air-conditioning cold water regulating system controls the flow of each branch by controlling the opening of a regulating valve so as to meet the requirements of load change of different branches on the flow, the regulating valve is accurate to control but is relatively expensive in price, particularly, the price of a regulating valve with a large caliber is obviously different compared with that of an on-off valve, and the application of the regulating valve in system regulation is influenced, so that the technical problem that how to accurately control the transmission flow of a cold air transmission pipeline under the condition of using the on-off valve to replace the regulating valve is urgently needed to be solved at present.
Disclosure of Invention
In view of the technical problems in the background art, the embodiments of the present invention provide a method, an apparatus, and a system for adjusting cooling of a central air conditioner based on an on-off valve.
In a first aspect of the present invention, a method for adjusting cooling of a central air conditioner based on an on-off valve is provided, which includes: acquiring the detection temperature of a room accessed to a central air conditioner; determining the difference value between the detected temperature and the set temperature according to the set temperature of the room; determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the central air conditioner connected to the room; and controlling the on-off valve to deliver cold air to the room according to the on-off ratio.
In some embodiments, the determining a temperature difference value between the detected temperature and the set temperature according to the set temperature of the room further includes: judging whether the difference value is less than or equal to zero: if yes, controlling the on-off valve to convey cold air to the room according to the set minimum on-off ratio; and if not, determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room access central air conditioner.
In some embodiments, the determining, by using the difference, an on-off ratio in a control cycle of the on-off valve on the pipeline connecting the room to the central air conditioner specifically includes: determining a first cold air regulating quantity corresponding to the difference value under the condition that a regulating valve is arranged on a central air conditioner access pipeline of a room according to the difference value;
and determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
The invention provides a central air conditioner cooling adjusting device based on an on-off valve, which comprises: a temperature detection module for acquiring a detected temperature of a room accessed to the central space; the temperature difference detection module is used for determining the difference value between the detection temperature and the set temperature according to the set temperature of the room; the first on-off ratio calculation module is used for determining the on-off ratio in a control period by using the difference value aiming at an on-off valve on a pipeline for accessing a room into a central air conditioner; and the on-off valve adjusting module is used for controlling the on-off valve to convey cold air to the room according to the on-off ratio.
In some embodiments, the central air conditioner cooling regulation device based on the on-off valve is characterized by further comprising: the temperature judging module is used for judging whether the difference value is less than or equal to zero; the first on-off ratio calculation module is used for controlling the on-off valve to convey cold air to a room according to a set minimum on-off ratio if the air is in the room; and the second on-off ratio calculation module is used for determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room connected to the central air conditioner if the on-off valve is not in the on-off state.
In some embodiments, the central air conditioner cooling adjustment device based on the on-off valve is characterized in that the first on-off ratio calculation module specifically includes: the cooling adjustment quantity determining unit is used for determining a first cooling adjustment quantity corresponding to the difference value under the condition that the adjusting valve is arranged on a central air conditioner access pipeline of the room according to the difference value; and the on-off ratio calculation unit is used for determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
The third aspect of the invention provides a central air conditioner cooling regulation system based on an on-off valve, which comprises: the temperature sensor is arranged in any room connected with the central air conditioner; the on-off valve is arranged on a pipeline of the room connected to the central air conditioner; the controller is respectively connected with the temperature sensor and the on-off valve through a network; a memory storing a computer program for implementing the steps of the method for adjusting the cooling capacity of a central air conditioner based on an on-off valve according to any one of claims 1 to 3 when the computer program runs on the controller.
In some embodiments, the central air-conditioning cooling regulation system based on the on-off valve is characterized in that the controller is respectively connected to the temperature sensor and the on-off valve through short-distance wireless communication.
In some embodiments, the on-off valve-based central air conditioning cooling regulation system, wherein the short-range wireless communication comprises: LORA wireless communication.
In some embodiments, the on-off valve based central air conditioner cooling regulation system is characterized by further comprising: and the management platform is connected to the controller through a network.
The invention has the beneficial effects that: whether the indoor temperature detected by the wireless temperature sensing device is different from the set temperature or not is judged, the on-off valve is opened to transmit cold air according to the set initial minimum on-off ratio, the wireless temperature sensing device can continuously detect the temperature difference value between the indoor temperature and the set temperature, if the temperature difference exists, the temperature difference value is transmitted to the on-off controller to obtain a new on-off ratio after calculation, the new on-off ratio is continuously used for transmitting the cold air, and the cold air transmission is stopped until the indoor temperature reaches the set temperature of the central air conditioner. The purpose that the cold air transmission pipeline can accurately control the transmission flow under the condition that the on-off valve is used for replacing the regulating valve is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a central air conditioning cooling regulation system based on an on-off valve according to an embodiment of the present invention.
Fig. 2 is a flowchart of a method for adjusting cooling of a central air conditioner based on an on-off valve according to an embodiment of the present invention.
Fig. 3 is a flowchart of another embodiment after the step S220 shown in fig. 2.
Fig. 4 is a flowchart of the step S230 shown in fig. 2 in an embodiment.
Fig. 5 is a schematic diagram of the device for regulating the cooling of the central air conditioner based on the on-off valve in one embodiment of the invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
First embodiment
Referring to fig. 1, a schematic diagram of a central air conditioning cooling regulation system based on an on-off valve according to an embodiment of the present invention is shown.
As shown in fig. 1, the on-off valve based central air conditioning cooling regulation system 100 includes; the system comprises a wireless temperature sensor 110, an on-off valve 120, an on-off controller 130, a memory 140 and a management platform 150. The wireless temperature sensor 110 is arranged in any room connected with the central air conditioner and uploads the indoor temperature to the on-off controller 130 connected with the indoor temperature through a network; the on-off valve 120 is arranged on a pipeline of the room connected to the central air conditioner and is used for controlling the on-off of a cold air transmission pipeline to adjust the cold air transmission quantity; the on-off controller 130 is respectively connected to the wireless temperature sensor 110 and the on-off valve 120 through a network, and is used for controlling the on-off of the on-off valve; and the memory 140 stores a computer program, when the computer program runs on the controller, the on-off control of the on-off valve 120 can be realized, the on-off control is used for performing central air conditioning cooling regulation on the temperature of the room, and the management platform 150 is connected with the on-off controller 130, is used for performing remote control on each on-off manager, and is used for receiving and processing alarm information of equipment.
In one embodiment, the computer program may be steps for implementing the on-off valve based central air conditioner cooling regulation method of the present invention.
Specifically, the controller is connected to the temperature sensor and the on-off valve through short-distance wireless communication, respectively. Illustratively, the short-range wireless communication includes: LORA wireless communication.
In some embodiments, in combination with fig. 1, the central air conditioning cooling and conditioning system further includes: and the management platform is connected to the controller through a network. Wherein the network may be long range wireless communication. For example, the management platform is a server, and the controller and the server are connected through a mobile communication network, where the mobile communication network may be specifically a 4G network, a 5G network, or the like.
Second embodiment
Fig. 2 is a flowchart of a method for adjusting cooling of a central air conditioner based on an on-off valve according to an embodiment of the present invention.
Referring to fig. 2, the method for adjusting cooling of a central air conditioner based on an on-off valve specifically includes steps S210 to S240:
s210: the detected temperature of a room accessed to the central air conditioner is acquired.
The acquisition of the detected temperature of the room accessed to the central air conditioner is specifically that a wireless temperature sensor is placed in the room accessed to the cooling pipeline of the central air conditioner for detecting the indoor temperature in real time, and the detected value is transmitted to the on-off controller through LORA wireless communication.
S220: and determining the difference value between the detected temperature and the set temperature according to the set temperature of the room.
The on-off controller receives the temperature value uploaded by the wireless temperature sensor, and compares and calculates whether the temperature difference exists between the temperature value and the temperature value set by the central air conditioner for the room.
Illustratively, see fig. 3, which is a flowchart of another embodiment after the step S220 shown in fig. 2.
As shown in fig. 3, after the step S220, the following steps S310 to S330 may be further included.
S310: and judging whether the difference value is less than or equal to zero.
Specifically, after the central air conditioner sets a temperature for the room, the wireless temperature sensor placed in the room will start to detect whether there is a temperature difference between the room temperature value and the temperature value set by the central air conditioner.
For example, A, B, C, D, E five rooms are all connected with a central air conditioner, wherein after the central air conditioner sets a refrigeration temperature of 21 ℃ for room a, a wireless temperature sensor placed in the room detects that the real-time temperature of the room is 24 ℃, at this time, the wireless temperature sensor uploads the temperature value to an on-off control valve through LORA wireless communication, the on-off control valve calculates that the temperature value of the room is 3 ℃ higher than the set temperature value according to the uploaded temperature value, and then the temperature difference existing in the room is-3 ℃.
S320: if yes, controlling the on-off valve to convey cold air to the room according to the set minimum on-off ratio.
Specifically, if the current indoor temperature is lower than or equal to the set temperature value of the central air conditioner, the on-off valve is controlled to convey cold air by adopting the initial minimum on-off ratio, for example, after the central air conditioner sets a refrigerating temperature of 23 ℃ for a room B, the wireless temperature sensor arranged in the room detects that the real-time temperature value in the room is also 21 ℃, namely the room temperature is higher than the set temperature value, the on-off control valve conveys the cold air according to the set initial minimum on-off ratio of 9:1 to adjust the indoor temperature, the wireless temperature sensor arranged in the room detects the indoor temperature value in real time, if the indoor temperature is still higher than the set temperature under the on-off ratio, the on-off control valve firstly records the temperature difference between the current temperature value and the set value and an on-off ratio of the conveyed cold air, and recalculates a new on-off ratio through the new temperature difference, and continuously using the new on-off ratio to convey cold air, recording the adjusted temperature value and the set value until the indoor temperature is equal to the set temperature, wherein the minimum on-off ratio is the time proportion of closing and opening of a cold air conveying pipeline in a control period, and the on-off controller controls the on-off valve to convey cold air according to the minimum on-off ratio.
For example, if a control cycle time of a cold air duct of a central air conditioner connected to a room a is 60 minutes, then if the air conditioner is operated in accordance with an initial minimum on-off ratio of 9:1, calculating that the opening time of the on-off valve of the cold air transmission pipeline of the room is 60 × 0.1-6 minutes, the closing time is 60 × 0.9-54 minutes, the closing time of the on-off valve in the control period is 60-6-54 minutes, the opening time is 60-54-6 minutes, and the opening time is 6 minutes, if the cold air transmission quantity of the pipeline in the fully-opened state in the control period time is 10 liters, the transmission flow of the transmission pipeline at the minimum on-off ratio is 10 × 0.1-1 liters, and the transmission flow of the transmission pipeline at the initial minimum on-off ratio is 6 minutes and 1 liter.
S330: and if not, determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room access central air conditioner.
Specifically, if the temperature value detected by the wireless temperature sensor placed in the room is greater than zero, that is, the temperature in the room is higher than the temperature value set by the central air conditioner in the room, for example, the central air conditioner sets a refrigeration temperature of 21 ℃ in the room a, and the actually measured indoor temperature value is 24 ℃, the wireless temperature sensor uploads the detected value to the on-off controller, and the on-off controller calculates the temperature difference between the indoor temperature and the set temperature according to the value, and obtains an optimal cold air delivery on-off ratio through the calculation of the temperature difference.
S230: and determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room connected to the central air conditioner.
Specifically, the difference may be: indoor temperature — set temperature, can also be: set temperature-room temperature. In either way, the value of the difference may be a negative value or a positive value.
Taking the temperature difference as the indoor temperature-the set temperature as an example, when the temperature difference is a negative value, it indicates that the indoor temperature is less than the set temperature, and at this time, the indoor temperature needs to be increased, so that the on-off valve needs to be controlled to reduce the amount of cold air delivered to the room; on the contrary, if the temperature difference is positive, it indicates that the indoor temperature is greater than the set temperature, and at this time, the indoor temperature needs to be decreased, so that the on-off valve needs to be controlled to continuously increase the amount of cold air delivered to the room. It should be understood that the temperature difference is zero, that is, the indoor temperature is equal to the set temperature, and it is only necessary to maintain the temperature at this time, that is, the current state of the on-off valve is maintained at this time.
Illustratively, see fig. 4, which is a flowchart of the above step S230 shown in fig. 2 in an embodiment.
As shown in fig. 4, step S230 may specifically include steps S410-S420:
s410: and determining a first cold air regulating quantity corresponding to the difference value under the condition that the regulating valve is arranged on the central air conditioner access pipeline of the room according to the difference value.
In order to control the on-off of the on-off valve, a regulating valve is used as a reference, because the regulating valve controls the cold air quantity more accurately than the on-off valve. The temperature difference between the indoor temperature and the set temperature is used for determining the amount of cold air to be delivered by the regulating valve.
S420: and determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
On the basis of the above, the determined first cold air adjustment amount is used to equally determine the on-off ratio of the on-off valve for delivering the same first cold air adjustment amount. For example, the area method can be used to realize the on-off control of the on-off valve in one control cycle so as to realize the regulation of the indoor temperature.
And S240, controlling the on-off valve to convey cold air to the room according to the on-off ratio.
Specifically, the on-off control valve controls the on-off of the on-off valve to convey cold air according to the on-off ratio obtained by calculating the temperature difference.
In conclusion, the method can ensure that the cold air transmission pipeline of the central air conditioner can accurately control the transmission flow rate under the condition that the on-off valve replaces the regulating valve after the on-off valve replaces the regulating valve, and greatly reduces the use cost of the central air conditioner for regulating the temperature.
Third embodiment
Under the same inventive concept as the second embodiment, correspondingly, the embodiment also provides a device for cooling regulation of a central air conditioner based on the on-off valve.
Referring to fig. 5, which is a schematic diagram of an embodiment of a cooling regulation device of a central air conditioner based on an on-off valve according to the present invention, as shown in fig. 5, the cooling regulation device 400 of a central air conditioner based on an on-off valve may specifically include: a temperature detection module 510 for acquiring a detected temperature of a room accessed to the central space; a temperature difference detection module 520, configured to determine a difference between the detected temperature and a set temperature according to the set temperature of the room; a first on-off ratio calculation module 530, configured to determine, for an on-off valve on a pipeline of a room connected to the central air conditioner, an on-off ratio in a control period by using the difference value; and the on-off valve adjusting module 540 is used for controlling the on-off valve to convey cold air to the room according to the on-off ratio.
In some embodiments, the on-off valve based central air conditioner cooling regulation device further comprises: the temperature judging module is used for judging whether the difference value is less than or equal to zero; the first on-off ratio calculation module is used for controlling the on-off valve to convey cold air to a room according to a set minimum on-off ratio if the air is in the room; and the second on-off ratio calculation module is used for determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room connected to the central air conditioner if the on-off valve is not in the on-off state.
In some embodiments, the first on-off ratio calculation module of the on-off valve-based central air conditioner cooling adjustment device specifically includes: the cooling adjustment quantity determining unit is used for determining a first cooling adjustment quantity corresponding to the difference value under the condition that the adjusting valve is arranged on a central air conditioner access pipeline of the room according to the difference value; and the on-off ratio calculation unit is used for determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
It should be noted that, for specific implementation procedures or principles of the present embodiment and corresponding technical effects, reference may be made to the second embodiment described above, which is not described herein again. The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A central air conditioner cooling regulation method based on an on-off valve is characterized by comprising the following steps:
acquiring the detection temperature of a room accessed to a central air conditioner;
determining the difference value between the detected temperature and the set temperature according to the set temperature of the room;
determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the central air conditioner connected to the room;
and controlling the on-off valve to deliver cold air to the room according to the on-off ratio.
2. The method for adjusting the cooling capacity of a central air conditioner based on an on-off valve as claimed in claim 1, wherein the temperature difference value between the detected temperature and the set temperature is determined according to the set temperature of the room, and then further comprising:
judging whether the difference value is less than or equal to zero:
if yes, controlling the on-off valve to convey cold air to the room according to the set minimum on-off ratio;
and if not, determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room access central air conditioner.
3. The method for adjusting cooling of a central air conditioner based on an on-off valve as claimed in claim 1, wherein the determining the on-off ratio in a control period by using the difference value for the on-off valve on the pipeline of the room connected to the central air conditioner specifically comprises:
determining a first cold air regulating quantity corresponding to the difference value under the condition that a regulating valve is arranged on a central air conditioner access pipeline of a room according to the difference value;
and determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
4. The utility model provides a central air conditioning cooling adjusting device based on make-and-break valve which characterized in that includes:
a temperature detection module for acquiring a detected temperature of a room accessed to the central space;
the temperature difference detection module is used for determining the difference value between the detection temperature and the set temperature according to the set temperature of the room;
the first on-off ratio calculation module is used for determining the on-off ratio in a control period by using the difference value aiming at an on-off valve on a pipeline for accessing a room into a central air conditioner;
and the on-off valve adjusting module is used for controlling the on-off valve to convey cold air to the room according to the on-off ratio.
5. The on-off valve-based central air conditioner cooling adjustment device of claim 4, further comprising:
the temperature judging module is used for judging whether the difference value is less than or equal to zero;
the first on-off ratio calculation module is used for controlling the on-off valve to convey cold air to a room according to a set minimum on-off ratio if the air is in the room;
and the second on-off ratio calculation module is used for determining the on-off ratio in a control period by using the difference value aiming at the on-off valve on the pipeline of the room connected to the central air conditioner if the on-off valve is not in the on-off state.
6. The central air-conditioning cooling adjusting device based on the on-off valve as claimed in claim 5, wherein the first on-off ratio calculating module specifically comprises:
the cooling adjustment quantity determining unit is used for determining a first cooling adjustment quantity corresponding to the difference value under the condition that the adjusting valve is arranged on a central air conditioner access pipeline of the room according to the difference value;
and the on-off ratio calculation unit is used for determining the on-off ratio corresponding to the on-off valve reaching the first cold air regulating quantity in a control period.
7. A central air conditioning cooling governing system based on make-and-break valve includes:
the temperature sensor is arranged in any room connected with the central air conditioner;
the on-off valve is arranged on a pipeline of the room connected to the central air conditioner;
the controller is respectively connected with the temperature sensor and the on-off valve through a network;
a memory storing a computer program for implementing the steps of the method for adjusting the cooling capacity of a central air conditioner based on an on-off valve according to any one of claims 1 to 3 when the computer program runs on the controller.
8. The on-off valve-based central air conditioning cooling conditioning system of claim 7, wherein the controller is connected to the temperature sensor and the on-off valve, respectively, by short-range wireless communication.
9. The on-off valve-based central air conditioning cooling conditioning system of claim 8, wherein the short-range wireless communication comprises: LORA wireless communication.
10. The on-off valve based central air conditioning cooling conditioning system of any of claims 7-9 further comprising:
and the management platform is connected to the controller through a network.
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Cited By (1)
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| CN115493249A (en) * | 2022-11-16 | 2022-12-20 | 煜安特种阀门研制(深圳)有限公司 | Multi-valve-based temperature and humidity regulation and control method, device and system |
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