CN113587393A - Central air-conditioning control system - Google Patents
Central air-conditioning control system Download PDFInfo
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- CN113587393A CN113587393A CN202110897515.6A CN202110897515A CN113587393A CN 113587393 A CN113587393 A CN 113587393A CN 202110897515 A CN202110897515 A CN 202110897515A CN 113587393 A CN113587393 A CN 113587393A
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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
- F24F11/56—Remote control
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
The invention discloses a central air-conditioning control system, comprising: at least one outdoor unit; at least one indoor unit which is connected with each outdoor unit in a communication way through a communication bus; at least one controller, each controller can communicate with each other, and is connected with the communication bus respectively; the configuration module is used for sending an address acquisition instruction to the communication bus and analyzing and receiving the instruction fed back by the controller to determine a controller address list when a new controller is accessed to the communication bus; configuring the address of a new controller according to the controller address list; the address fetch instruction includes a default address. The invention can automatically acquire the address of the new access controller, avoid address conflict and save hardware input cost.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a central air conditioner control system.
Background
The application scenes of the existing central air conditioners are more and more extensive, a plurality of indoor units exist under a central air conditioner system, if the number of the indoor units is more under the scene of a plurality of systems, if the air conditioners are managed conveniently, a common remote controller cannot meet the requirements, so that a plurality of controllers are required to be used for management, and the following problems can be caused.
(1) The multiple controllers are connected to a communication bus of the air conditioning system, and the same equipment address can cause address conflict and cause abnormal communication; (2) each controller is set with an address before installation, and the address of each controller is manually recorded, so that errors are easy to occur; (3) the set address is generally set through manual dialing or a self-contained UI menu; setting addresses through dialing is troublesome and labor-consuming, and dialing hardware cost is increased; setting the menu with the UI requires the UI of the controller, the UI has an address setting function, and the function of the controller is highly required.
Therefore, a convenient management method for automatically acquiring the address of the accessed controller on the communication bus to calculate the address of the new accessed controller is needed.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a central air-conditioning control system, which can automatically acquire an address of a newly accessed controller by automatically acquiring an address of an accessed controller on a communication bus, so as to achieve the purpose of automatically setting an address of a new controller, avoid address conflict, and save hardware investment cost.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the application provides a central air conditioning control system, its characterized in that includes:
at least one outdoor unit;
at least one indoor unit which is connected with each outdoor unit in a communication way through a communication bus;
at least one controller, each controller can communicate with each other and is connected with the communication bus respectively;
the configuration module is used for sending an address acquisition instruction to the communication bus and analyzing and receiving the instruction fed back by the controller to determine a controller address list when a new controller is accessed to the communication bus;
configuring the address of the new controller according to the controller address list;
wherein the address fetch instruction includes a preset address.
In some embodiments of the present application, the configuration module is configured to, when an address obtaining instruction is sent to the communication bus, each of the at least one controller feeds back an instruction to the new controller;
the new controller analyzes the received instruction to obtain the controller address of each controller;
the controller addresses of the at least one controller form the controller address list.
In some embodiments of the present application, the instruction includes a controller address of the controller.
In some embodiments of the present application, the central air conditioning control system further comprises:
a determination module for determining which of the at least one controller feeds the instruction back to the new controller;
wherein the instruction includes a controller address list formed of controller addresses for each of the at least one controller.
In some embodiments of the present application, the determining module obtains the priority of the at least one controller for feeding back the instruction by generating a random number.
In some embodiments of the present application, the controller with the smallest random value acquires the priority.
In some embodiments of the present application, the central air conditioning control system further comprises:
an update module for updating a list of controller addresses of all online controllers and the new controller in the at least one controller.
The application provides a central air conditioning control system has following advantage and beneficial effect:
(1) the address of the new controller is obtained by automatically obtaining the address of at least one controller which is accessed on the communication bus, so that the purpose of automatically setting the address of the new controller is realized, the address conflict with the accessed controller is avoided, and the reliable communication is ensured;
(2) the address setting of the new controller can be realized by using a software program, so that the hardware investment cost is saved;
(3) the address of a new controller does not need to be set manually, and time and labor are saved.
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 one embodiment of a central air conditioning control system according to the present invention;
FIG. 2 is a flow chart of the address calculation of a new controller in one embodiment of the central air conditioning control system of the present invention;
fig. 3 is a flowchart illustrating the steps of calculating the address of a new controller and confirming with at least one controller connected thereto in another embodiment of the central air conditioning control 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 for a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler for a cooling mode.
Central air-conditioning control system
The central air-conditioning control system comprises at least one outdoor unit, at least one indoor unit, at least one controller and a configuration module.
Referring to fig. 1, which shows only one outdoor unit, the outdoor unit is communicatively connected to at least one indoor unit (indoor unit 1, indoor unit 2, indoor unit n (n ≧ 1)) through a communication bus.
The outdoor unit and the indoor unit form an air conditioning system, and the controller is used for controlling the air conditioning system.
Referring to fig. 1, at least one controller that has been accessed is denoted as: the controller comprises a controller 1, a controller 2 and a controller n (n is more than or equal to 1), wherein the controllers are respectively connected to a communication bus.
The controllers can communicate with each other, i.e., the controllers can receive communication messages of other controllers.
When the new controller n +1 is newly accessed to the communication bus, how to acquire the address of the new controller n +1 is a problem to be solved.
The configuration module is used for determining a controller address list by sending an address acquisition instruction A to the communication bus and receiving and analyzing an instruction fed back by the controller when a new controller n +1 is accessed to the communication bus.
The configuration module is further configured to configure an address of the new controller n +1 according to the controller address list.
It should be noted that the address fetch instruction a includes a preset address, for example, the address information of the preset address is FF, and has a flag bit for identifying that the issued instruction is an address fetch instruction.
Thus, when the controller i (i is more than or equal to 1 and less than or equal to n) receives the address acquisition instruction A, the address information sent by the instruction is FF, and the instruction is the instruction for acquiring the address.
The command of controller feedback received by the new controller n +1 as described above includes two cases: 1. each controller i (i is more than or equal to 1 and less than or equal to n) feeds back an instruction to the new controller n + 1; 2. one controller i (i is more than or equal to 1 and less than or equal to n) feeds back an instruction to the new controller n + 1.
According to the above two cases, the following description will be made separately.
Configuring the Address I of a New controller
Referring to FIG. 2, a flow chart is shown for controller i (1 ≦ i ≦ n) communicating with new controller n +1 for determining the address of new controller n + 1.
Each controller i (1. ltoreq. i.ltoreq.n) knows its own address, but does not know the controller address list formed by the controller addresses of each controller i (1. ltoreq. i.ltoreq.n).
Therefore, each controller i needs to communicate with the new controller n +1 separately.
S21: the new controller n +1 has access to the communication bus.
S22: the new controller n +1 sends an address fetch instruction a to the communication bus.
The address fetch instruction A is an instruction having a predetermined address and flag bits as described above.
S23: and judging whether at least one controller i (i is more than or equal to 1 and less than or equal to n) exists on the communication bus, if so, proceeding to S24, and if not, configuring the address of a new controller n + 1.
It should be noted that at least one existing controller should be previously accessed to the communication bus, that is, the newly accessed controller is not the controller that is accessed to the first communication bus.
If the new controller is the controller on the first access communication bus, its address can be freely allocated under the condition of meeting the requirement, and at this time, the problem of address conflict with other existing controllers is not considered.
S24: and at least one controller receives the address acquisition instruction A through the communication bus in sequence and feeds back an instruction B to the communication bus.
At least one controller i (i is more than or equal to 1 and less than or equal to n) sends an instruction B to the communication bus, and the instruction B comprises the controller address of the controller i.
For example, the controller 1 receives the address acquisition instruction a, and feeds back an instruction B including a controller address of the controller 1 to the communication bus.
The controller 2 receives the address acquisition instruction a and feeds back an instruction B containing a controller address of the controller 2 to the communication bus.
It should be noted that at least one controller i (i is greater than or equal to 1 and less than or equal to n) needs to be online, so that the address of the new controller n +1 can be configured reliably, and address conflict is avoided.
S25: and the new controller n +1 receives the instruction B and analyzes the instruction B to form a controller address list table 1.
For example, after receiving the command B, the new controller n +1 parses the command B, obtains the controller address of the controller 1, and stores the controller address.
And the new controller n +2 analyzes the command B after receiving the command B, and acquires and stores the controller address of the controller 2.
The controller addresses of each controller i are sequentially acquired and stored to form a controller address list table 1.
S26: and after judging that the new controller n +1 searches all the controllers 1-n, configuring the address of the new controller n +1 according to the controller address list table 1.
Typically, the controller addresses of the existing controllers are consecutive, so that addresses can be consecutively allocated to the new controller n + 1.
If the address of the controller m (1 is more than or equal to m and less than n) and the address of the controller m +1 are discontinuous, an address between the address of the controller m (1 is more than or equal to m and less than n) and the address of the controller m +1 can be configured for the new controller n +1, and address waste is avoided.
Assume that the timeout time for receiving the feedback command of each controller is set to T by the new controller n +1, the upper limit number of the controllers is M, and the maximum timeout time is T × M, that is, the accessed controller n +1 waits for T × M.
After the time is longer than or equal to T × M, all the controllers on the communication bus are considered to have been searched, and then the address of the new controller n +1 may be configured according to the controller address list table 1.
The central air-conditioning control system can realize the automatic configuration of the n +1 address of the new controller.
The address configuration method needs to wait for timeout T × M to determine that the controller search is completed, the address configuration time is long, and there may be a problem that the search is not completed but is timeout, so that the search is incomplete; and all controllers 1-n need to be ensured to be on-line.
Configuring the Address II of the New controller
To solve the above technical problem, see FIG. 3, which shows a flow chart of a controller i (1 ≦ i ≦ n) communicating with a new controller n +1 for determining the address of the new controller n +1, and acknowledging with controllers 1-n (see dashed boxes in FIG. 3).
S31: a new controller n +1 is accessed.
S32: the new controller n +1 sends an address fetch instruction a to the communication bus.
The address fetch instruction A is an instruction having a predetermined address and flag bits as described above.
S33: and judging whether at least one controller i (i is more than or equal to 1 and less than or equal to n) exists on the communication bus, if so, proceeding to S34, and if not, configuring the address of a new controller n + 1.
S34: one of the at least one controller receives the address acquisition instruction A through the communication bus and feeds back an instruction B' to the communication bus.
For example, the controller 1 receives the address obtaining command A and feeds back a command B' including controller addresses of the controllers 1-n to the communication bus.
The controller 2 receives the address acquisition instruction A and feeds back an instruction B' including controller addresses of the controllers 1-n to the communication bus.
Here, the command B' includes a controller address list table1 formed by the controller addresses of each controller i (1. ltoreq. i.ltoreq.n).
The determining module is used for determining which controller of the at least one controller feeds back the instruction B 'to the communication bus, namely, determining the priority of the controller which feeds back the instruction B' to the communication bus.
In the present application, the determining module obtains the priority of the at least one controller of the feedback command B' by generating a random number.
First, a random number is generated by seeding with system time.
Secondly, the controller with the smallest random number is selected to feed back the command B' to the communication bus, i.e. the controller with the smallest random number is considered to have the highest priority.
The minimum random number represents that the system time is the earliest, and after the controller with the earliest time feeds back the instruction B ', other subsequent controllers do not feed back the instruction B' to the communication bus any more.
Of course, there are many ways to determine which controller feeds back the command B', for example, the priority order of each controller in at least one controller is preset, for example, the priority of the controllers in controllers 1-n decreases sequentially.
When any one of the controllers 1 to n receives the address obtaining instruction a sent by the new controller n +1, the fed-back instruction B' includes the controller address list table1 of the controller address of the controllers 1 to n, that is, each of the controllers 1 to n has the controller address list table1 as described above.
As follows, the controller address list table1 can be obtained only by the instruction transmission of the new controller n +1 and any one of the controllers 1 to n, so that the time for configuring the address of the new controller n +1 is saved; and no busy communication is caused on the communication bus.
It should be noted that at least one existing controller should be previously accessed to the communication bus, that is, the newly accessed controller is not the controller that is accessed to the first communication bus.
If the new controller is the controller on the first access communication bus, its address can be freely allocated under the condition of meeting the requirement, and at this time, the problem of address conflict with other existing controllers is not considered.
S35: and after receiving the instruction B ', the new controller n +1 analyzes the instruction B' to obtain a controller address list table 1.
For example, after receiving the instruction B' fed back by the controller 1, the new controller n +1 analyzes the instruction to obtain a controller address list table 1; or
And the new controller n +1 receives the instruction B 'fed back by the controller 2 and analyzes the instruction B', and a controller address list table1 is obtained.
S36: the address of the new controller n +1 is configured according to the controller address list table 1.
The controller addresses in the controller address list table1 of the existing controller are consecutive, so that addresses can be consecutively allocated to the new controller n + 1.
If the addresses in the controller address list table1 are not consecutive, for example, the address of the controller m (1 ≦ m < n) and the address of the controller m +1 are not consecutive, the new controller n +1 may be configured with the address between the address of the controller m (1 ≦ m < n) and the address of the controller m +1, so as to avoid address waste and implement reasonable address allocation.
Updating address lists
After the configuration of the address of the new controller n +1 is completed, there may be some controllers that are not online (e.g., powered down) and that require an online validation of controllers 1-n for reliable control.
The central air-conditioning control system further comprises an updating module (not shown) for updating the controller address lists of the on-line controller and the new controller n +1 in the controllers 1-n.
S37: the new controller n +1 sends an instruction C to the communication bus.
Instruction C contains a controller address list with the controller address of the new controller.
That is, the controller address list in the command C is a controller address list table including controller addresses of the controllers 1 to n +1n+1{1,2,3，...,n+1}。
S38: and judging whether the controller i (i is more than or equal to 1 and less than or equal to n) feeds back the response command D, if so, going to S39, and if not, going to 39'.
The new controller n +1 is able to list table according to the controller addressn+1And (3) confirming the information of {1,2, 3., n +1} and the controllers 1-n one by one on line.
S39: indicating that controller i is online, the controller address of the new controller n +1 is updated into the controller address list of controller i.
And if the controller i (i is more than or equal to 1 and less than or equal to n) receives the instruction C on line and feeds back a response instruction D to indicate that the controller i is on line, updating the controller address of the new controller n +1 into a controller address list of the controller i.
For example, after the controller 1 receives the command C on line, the controller address of the new controller n +1 is updated to the controller address list of the controller 1, and at this time, the controller address list of the controller 1 is the controller address list table including the controller addresses of the controllers 1 to n +11{1,2,3,...,n+1}。
Thus, if all the controllers 1 to n are on-line, the controller address list of each controller in the controllers 1 to n is the controller address list including the controller addresses of the controllers 1 to n + 1.
S39': indicating that the controller i is on-line, the new controller n +1 will change the controller address of the controller i from the controller address list table of the new controller n +1n+1And {1,2, 3.,. n +1 }.
If the new controller n +1 does not receive the response instruction D of one controller i (i is more than or equal to 1 and less than or equal to n) in the controllers 1 to n, the instruction C is sent to the communication bus again, if the response instruction D of the controller i (i is more than or equal to 1 and less than or equal to n) is not received, the controller i (i is more than or equal to 1 and less than or equal to n) is not on line, and at the moment, the new controller n +1 can enable the controller address of the controller i from the controller address list table of the new controller n +1n+1Is removed from {1,2, 3., n +1}, so as to formTo an updated controller address list tablen+1{1,2,3,...,i-1,i+1,...,n+1}。
S40: after the controllers 1-n confirm one by one, the new controller n +1 updates the controller address list.
Thus, the controllers 1 to n are confirmed one by one, and after all the controllers 1 to n are confirmed, the updated controller address list of the new controller n +1 comprises the controller addresses of all the online controllers in the controllers 1 to n and the controller address of the new controller n + 1.
For example, after the controllers 1 to n have finished checking, the controller addresses of the respective controllers are listed as follows only if the controller 3 is not on-line in the controllers 1 to n.
The controller address list updated by the new controller n +1 is tablen+1{1,2,4,...,n+1}。
For an online controller, the controller address list is table1{1,2,3,...,n+1}。
S41: and the new controller n +1 sends the updated controller address list to the communication bus through the instruction E, and all the online controllers synchronously update the controller address list.
For example, the new controller n +1 updates the controller address list to tablen+1{1,2, 4., n +1}, then the list of controller addresses for all online controllers is also from the table1{1,2, 3., n +1} is updated to tablen+1{1,2,4,...,n+1}。
Namely, the controller address of the non-on-line controller (namely, the controller 3) is eliminated, and the confirmation mode can avoid control omission and is convenient and reliable to control.
Therefore, the address of the new controller n +1 newly accessed to the communication bus can be automatically set in the mode, the hardware input cost is saved, the address configuration time is saved, and the address setting efficiency is improved.
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 (7)
1. A central air-conditioning control system, characterized by comprising:
at least one outdoor unit;
at least one indoor unit which is connected with each outdoor unit in a communication way through a communication bus;
at least one controller, each controller can communicate with each other and is connected with the communication bus respectively;
the configuration module is used for sending an address acquisition instruction to the communication bus and analyzing and receiving the instruction fed back by the controller to determine a controller address list when a new controller is accessed to the communication bus;
configuring the address of the new controller according to the controller address list;
wherein the address fetch instruction includes a preset address.
2. The central air-conditioning control system according to claim 1,
the configuration module is used for feeding back instructions to the new controller by each of the at least one controller when the configuration module sends an address acquisition instruction to the communication bus;
the new controller analyzes the received instruction to obtain the controller address of each controller;
the controller addresses of the at least one controller form the controller address list.
3. The central air-conditioning control system according to claim 1,
the instruction includes a controller address of the controller.
4. The central air-conditioning control system according to claim 1, characterized by further comprising:
a determination module for determining which of the at least one controller feeds the instruction back to the new controller;
wherein the instruction includes a controller address list formed of controller addresses for each of the at least one controller.
5. The central air-conditioning control system according to claim 4, characterized in that the determination module acquires the priority of the at least one controller for feeding back the instruction by generating a random number.
6. The central air-conditioning control system according to claim 5, characterized in that the controller with the smallest random value acquires the priority.
7. The central air-conditioning control system according to claim 6, characterized by further comprising:
an update module for updating a list of controller addresses of all online controllers and the new controller in the at least one controller.
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| CN202110897515.6A CN113587393B (en) | 2021-08-05 | 2021-08-05 | Central air-conditioning control system |
| PCT/CN2022/080013 WO2023010848A1 (en) | 2021-08-05 | 2022-03-09 | Central air-conditioning control system |
| CN202280026628.1A CN117121443A (en) | 2021-08-05 | 2022-03-09 | Central air conditioner control system |
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| CN202110897515.6A CN113587393B (en) | 2021-08-05 | 2021-08-05 | Central air-conditioning control system |
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| CN113587393B CN113587393B (en) | 2022-11-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017899A (en) * | 2021-11-17 | 2022-02-08 | 四川长虹空调有限公司 | Control method for realizing automatic matching and manual setting compatibility of centralized control target address |
| CN114484762A (en) * | 2022-01-25 | 2022-05-13 | 青岛海尔空调电子有限公司 | Control method of multi-split air conditioning system, multi-split air conditioning system and electronic equipment |
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Also Published As
| Publication number | Publication date |
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| WO2023010848A1 (en) | 2023-02-09 |
| CN113587393B (en) | 2022-11-29 |
| CN117121443A (en) | 2023-11-24 |
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