CN113654201A - Central air-conditioning control system - Google Patents
Central air-conditioning control system Download PDFInfo
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- CN113654201A CN113654201A CN202110914762.2A CN202110914762A CN113654201A CN 113654201 A CN113654201 A CN 113654201A CN 202110914762 A CN202110914762 A CN 202110914762A CN 113654201 A CN113654201 A CN 113654201A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a central air-conditioning control system, comprising: at least one outdoor unit; the indoor units are in communication connection with the outdoor units through communication buses, and one indoor unit and the corresponding outdoor unit form an air conditioning unit; the centralized controller is connected with the communication bus and can acquire the on-off state and the running state of each air conditioning unit; the centralized controller configures the operation alternation time of each air conditioning unit and the alternation relationship of each air conditioning unit; the centralized controller controls the running state of each air conditioning unit according to the running rotation time, the on-off state and the rotation relation. The invention can alternately control the running states of a plurality of air conditioning units, ensures the indoor environment and saves energy.
Description
Technical Field
The invention relates to the technical field of central air conditioner control, in particular to a central air conditioner control system.
Background
The existing central air conditioner has more and more extensive application scenes, and the scenes requiring the long-term stability of the indoor air environment are continuously increased, such as places of machine rooms, warehouses, offices and the like, a plurality of indoor units exist under the central air conditioning system, and in order to ensure the stability of the indoor air environment, the indoor units must operate for a long time, so that the following problems can be brought.
(1) The air conditioner runs for a long time and is not repaired and maintained regularly, the service life of the air conditioner is shortened, but the normal use of the air conditioner is influenced when the air conditioner is repaired regularly; (2) once the air conditioner fails, the indoor air environment cannot be guaranteed to be constant, the comfort of a user is affected by a light person, and other economic losses may be brought seriously; (3) although the indoor air temperature can be guaranteed to be constant when a plurality of air conditioners are installed to work simultaneously, and the probability of simultaneous failure of the air conditioners is reduced, the use of electric quantity is increased, and energy is not saved.
Disclosure of Invention
In order to solve the above-described problems, the present invention provides a central air conditioning control system that can alternately control the operating states of a plurality of air conditioning units, ensure an indoor environment, and save energy.
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;
the indoor units are in communication connection with the outdoor units through communication buses, and one indoor unit and the corresponding outdoor unit form an air conditioning unit;
the centralized controller is connected with the communication bus and can acquire the on-off state and the running state of each air conditioning unit;
the centralized controller is configured with the operation alternation time of each air conditioning unit and the alternation relationship of each air conditioning unit;
and the centralized controller controls the running state of each air conditioning unit according to the running rotation time, the on-off state and the rotation relation.
In some embodiments of the present application, the centralized controller controls the operation states of the air conditioning units according to the operation rotation time, the on/off state, and the rotation relationship, specifically:
the centralized controller issues an inquiry command for inquiring the on-off state of an air conditioning unit A;
if the on-off state of the air conditioning unit A is the on-off state or the off-off state and the operation alternation time is not reached, not performing alternation on the air conditioning unit A;
if the on-off state of the air conditioning unit A is the on-off state and the running alternation time is reached, alternating the air conditioning unit A and controlling the air conditioning unit A to be turned off;
and if the on-off state of the air conditioning unit A is the off state and the running alternation time is reached, the air conditioning unit A is alternated and kept off.
In some embodiments of the present application, the air conditioning unit a is rotated, specifically:
and sending the running state of the air conditioning unit A to an air conditioning unit B in a rotation relation with the air conditioning unit A, and running and updating the running state of the air conditioning unit B by the air conditioning unit B.
In some embodiments of the present application, the centralized controller issues the query at intervals.
In some embodiments of the present application, the centralized controller is further capable of acquiring a fault state of the air conditioning equipment;
and the centralized controller controls the running state of each air conditioning unit according to the running alternation time, the on-off state, the alternation relation and the fault state.
In some embodiments of the present application, the centralized controller sets rotation priorities of all of the plurality of air conditioning units;
the centralized controller issues an inquiry command for inquiring the on-off state of an air conditioning unit A;
if the on-off state of the air conditioning unit A is a starting state, the fault state of the air conditioning unit A is not obtained, and the operation alternation time is not reached, or if the on-off state of the air conditioning unit A is a stopping state, and the operation alternation time is not reached, the air conditioning unit A is not alternated, and the fault states of all the air conditioning units with the priority lower than that of the air conditioning unit A are obtained at a time point which is t time away from the alternation operation time;
if the on-off state of the air conditioning unit A is the starting state, the fault state of the air conditioning unit A is not obtained, and the operation alternation time is reached, or if the on-off state of the air conditioning unit A is the starting state and the fault state of the air conditioning unit A is obtained, the air conditioning unit A is alternated and the air conditioning unit A is controlled to be turned off;
and if the on-off state of the air conditioning unit A is the off state and the running alternation time is reached, the air conditioning unit A is alternated and kept off.
In some embodiments of the present application, the air conditioning unit a is rotated, specifically:
sending the running state of the air conditioning unit A to an air conditioning unit B which has no fault and has a rotation priority lower than that of the air conditioning unit A, and running and updating the running state of the air conditioning unit B by the air conditioning unit B;
and the rotation priority of the air conditioning unit B is higher than the rotation priorities of all the air conditioning units.
In some embodiments of the present application, the centralized controller issues the query at intervals.
In some embodiments of the present application, the hub sets a rotation flag;
and if the air conditioning unit is detected to be out of order, setting the rotation zone position of the air conditioning unit to be 1, otherwise, setting the rotation zone position to be 0.
In some embodiments of the present application, the centralized controller sets the air conditioning unit a as a main device, and the remaining air conditioning units are emergency devices;
and the rotation priority of the air conditioning unit A is the highest level.
The application provides a central air conditioning control system has following advantage and beneficial effect:
(1) through the operation switching time, a plurality of air conditioning units can be operated alternately according to the alternating relation, the indoor environment requirement is ensured, and the user experience is improved;
(2) a plurality of air conditioning units operate by turns, so that the energy consumption of the air conditioner can be saved, and the failure rate of the air conditioning units can be reduced.
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 for controlling the operating status of various air conditioning units in one embodiment of the central air conditioning control system of the present invention;
fig. 3 is a flowchart for controlling the operation states of the air conditioning units 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 two indoor units and a centralized controller.
One indoor unit and one corresponding outdoor unit form one air conditioning unit, so that the central air conditioning control system of the application has at least two air conditioning units.
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 centralized controller is connected to the communication bus, and can acquire the on/off state and the operating state of each air conditioning unit (i.e., each outdoor unit and each indoor unit).
The on-off state comprises a power-on state and a power-off state; the operation state comprises operation parameters in the starting state and memorized operation parameters in the shutdown state.
The centralized controller can manage a plurality of air conditioning units, and configures the rotation relationship between the operation rotation time T and each air conditioning unit in order to rotate each air conditioning unit.
The rotation relation refers to a relation between the current air conditioning unit a and the air conditioning unit b to be rotated, namely, when the current air conditioning unit a needs to be rotated, the air conditioning unit b is selected to be rotated.
And the centralized controller controls the running state of each air conditioning unit according to the running rotation time T, the on-off state and the rotation relation.
The process of controlling the operation state of each air conditioning unit will be described in detail as follows.
Air conditioning unit alternate I
The at least two air conditioning units form an air conditioning unit set S.
The air conditioning unit set S may include: the air conditioning unit A ', the air conditioning unit B ', the air conditioning unit C ',. the. Each air conditioning unit has a rotation relationship.
Referring to fig. 2, there is shown a flowchart for controlling the operation state of each air conditioning unit in the central air conditioning control system.
S21: the centralized controller issues an inquiry command to inquire the on-off state of one air conditioning unit A.
The air conditioning unit A is any one of the air conditioning unit sets S.
The centralized controller may issue the query at intervals (e.g., 2 minutes).
S22: judging the on-off state of the air conditioning unit A, judging whether the operation alternation time T is reached, and if the on-off state of the air conditioning unit A is the on-off state or the off-off state and the operation alternation time T is not reached, performing S23; if the on-off state of the air conditioning unit a is the on-off state and the operation alternation time T has been reached, proceeding to S24; if the on/off state of the air conditioning unit a is the off state and the operation alternation time T has been reached, the process proceeds to S25.
The centralized controller controls whether to alternate or not according to the on-off state and the running alternation time T of the air conditioning units, and the centralized controller is arranged in which air conditioning unit to be alternated and is determined according to the alternation relationship of the air conditioning units.
S23: the air conditioning unit a is not rotated.
That is, the operation state of the current air conditioning unit a is maintained.
If the on-off state of the air conditioning unit a is the on-state and the operation alternation time T is not reached, the air conditioning unit a is not alternated, and the existing operation state of each air conditioning unit is maintained, for example, the on-state of the air conditioning unit a is maintained.
If the on-off state of the air conditioning unit a is the off state and the operation alternation time T is not reached, the existing operation state of each air conditioning unit is maintained, for example, the air conditioning unit a is maintained in the off state, and of course, the operation state of a certain air conditioning unit B may also be changed in a manual intervention manner.
When the on/off state of the air conditioning unit a is the off state and the operation alternation time T is reached, the process proceeds to S25.
S24: and (4) rotating the air conditioning unit A and controlling the air conditioning unit A to be shut down.
In order to keep the indoor environment stable, the operation state of the air conditioning unit a is transmitted to the air conditioning unit B to be rotated.
And then, the centralized controller controls the air conditioning unit B to operate and updates the operating state of the air conditioning unit B, and simultaneously sends a shutdown instruction to the air conditioning unit A to control the air conditioning unit A to shut down.
Here, the air conditioning unit B is any one of the air conditioning unit sets S having an alternating relationship with the air conditioning unit a.
S25: and (4) rotating the air conditioning unit A and keeping the air conditioning unit A off.
In order to ensure the stability of the indoor environment, the running state of the air conditioning unit A is sent to the air conditioning unit B which has an alternate relationship with the air conditioning unit A.
And the air conditioning unit A is kept off.
Here, the air conditioning unit B is any one of the air conditioning unit sets S having an alternating relationship with the air conditioning unit a.
According to the central air-conditioning control system, the alternate operation of each air-conditioning unit is realized through the operation alternate time T, the on-off state and the alternate relationship, the indoor environment is ensured, the energy consumption of the central air-conditioning system is reduced, and the user experience is improved.
Air conditioning unit alternate II
The air conditioning unit as described above may have a problem in that it is in an on state but is broken down, or the air conditioning unit to be rotated may have a problem in that it is broken down, and at this time, the indoor environment may be affected.
Therefore, in order to better ensure the stability of the indoor environment, the detection of the fault state of the air conditioning unit is increased.
In this application, centralized control ware can acquire air conditioning unit's fault status.
The air conditioning units to be rotated and the currently operating air conditioning units are ensured to be fault-free.
In the application, the fault state of the air conditioning unit can be represented by a fault flag bit, and whether the air conditioning unit fails or not is identified by identifying the fault flag bit.
When the air conditioning unit fails, the fault flag position of the air conditioning unit can be set to 1, and when the air conditioning unit has no fault, the fault flag position of the air conditioning unit can be set to 0.
When the fault of the air conditioning unit with the fault is cleared, the fault flag bit is changed from 1 to 0.
The centralized controller controls the running state of each air conditioning unit according to the running alternation time T, the on-off state, the alternation relation and the fault state.
Referring to fig. 3, a flowchart for controlling the operation state of each air conditioner in the central air conditioning control system is shown.
First, in the present application, the centralized controller sets the rotation priority of each air conditioning unit.
For example, the air conditioning unit set S includes: air conditioning unit A ', air conditioning unit B ' and air conditioning unit C '.
The centralized controller can set the rotation priorities of the air conditioning unit A ', the air conditioning unit B' and the air conditioning unit C ', and the rotation priorities of the air conditioning unit A', the air conditioning unit B 'and the air conditioning unit C' are sequentially reduced.
That is, when the air-conditioning unit a ' needs to be rotated (for example, the operation rotation time T is reached or the air-conditioning unit a ' has a failure), the air-conditioning unit B ' is first considered to be rotated, and if the air-conditioning unit B ' has a failure, the air-conditioning unit C ' is considered to be rotated.
In the present application, the air conditioning unit a 'may be used as a master device, while the remaining air conditioning units are emergency devices, and the rotation priority in the air conditioning unit a' is the highest level.
It should be noted that the air conditioning unit a' is any one of the air conditioning unit sets S; and the rotation priority of the air conditioning unit a 'should be higher than the rotation priority of the other air conditioning units to which the air conditioning unit a' is to be rotated.
S31: the centralized controller issues an inquiry command to inquire the on-off state of one air conditioning unit A.
The air conditioning unit A is any one of the air conditioning unit sets S.
The centralized controller may issue the query at intervals (e.g., 2 minutes).
S32: judging the on-off state, the fault state and the operation alternation time T of the air conditioning unit A, and if the on-off state of the air conditioning unit A is the on-state, the fault state of the air conditioning unit A is not obtained and the operation alternation time T is not reached, or if the on-off state of the air conditioning unit A is the off-state and the operation alternation time T is not reached, performing S33; if the on/off state of the air conditioning unit a is the on state, the fault state of the air conditioning unit a is not acquired, and the operation alternation time T has been reached, or the on/off state of the air conditioning unit a is the on state and the fault state of the air conditioning unit a is acquired, proceeding to S34; if the on/off state of the air conditioning unit a is the off state and the operation alternation time has been reached, the process proceeds to S35.
The centralized controller controls whether to alternate or not according to the on-off state, the fault state and the operation alternate time T of the air conditioning units, and determines the air conditioning unit to which the controller is arranged in the air conditioning unit in an alternate mode according to the alternate relationship and the fault state of each air conditioning unit.
S33: and not rotating the air conditioning unit A, and acquiring the fault states of all the air conditioning units with the priority lower than that of the air conditioning unit A at the time point which is a time period t from the rotating time.
The air conditioning unit A is not rotated, namely, the running state of the current air conditioning unit A is kept, and other air conditioning units are kept in the existing running state.
In order to ensure that the air conditioning units to be rotated are fault-free when the air conditioning units a are rotated when the rotation condition is met (for example, the shutdown state of the air conditioning unit a is reached and the operation rotation time T is reached), fault detection is performed on all the air conditioning units except the air conditioning unit a (here, the set of all the air conditioning units except the air conditioning unit a is referred to as an air conditioning unit set S ') before the operation rotation time T is reached to acquire the fault state of each air conditioning unit in the air conditioning unit set S'.
As described above, the central controller sets the rotation priority to each air conditioning unit in the air conditioning unit set S, and the rotation priority is sequentially lowered.
Therefore, the rotation priority of each air conditioning unit in the air conditioning unit set S 'is lower than that of the air conditioning unit a, and the rotation priorities of the air conditioning units in the air conditioning unit set S' are sequentially reduced.
S34: and (4) rotating the air conditioning unit A and controlling the air conditioning unit A to be shut down.
And selecting an air conditioning unit B which has no fault and has the highest rotation priority in the air conditioning unit set S' as an air conditioning unit to be rotated.
And sending the running state of the air conditioning unit A to the air conditioning unit B.
And then, the centralized controller controls the air conditioning unit B to operate and updates the operating state of the air conditioning unit B, and simultaneously sends a shutdown instruction to the air conditioning unit A to control the air conditioning unit A to shut down.
S35: and (4) rotating the air conditioning unit A and keeping the air conditioning unit A off.
And selecting an air conditioning unit B which has no fault and has the highest rotation priority in the air conditioning unit set S' as an air conditioning unit to be rotated.
And sending the running state of the air conditioning unit A to the air conditioning unit B.
And then, the centralized controller controls the air conditioning unit B to operate and updates the operating state of the air conditioning unit B.
And the air conditioning unit A is kept off.
According to the central air-conditioning control system, the air-conditioning units can be more reliably rotated and operated by the rotation time T, the on-off state, the fault state and the rotation relation, the indoor environment is ensured, the energy consumption of the central air-conditioning system is reduced, and the user experience is improved.
And when the air conditioning units are alternated, the running states are sent, so that the running parameters of the air conditioning units are kept consistent before and after the alternation, and the stability of the indoor environment is favorably ensured.
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 (10)
1. A central air-conditioning control system, characterized by comprising:
at least one outdoor unit;
the indoor units are in communication connection with the outdoor units through communication buses, and one indoor unit and the corresponding outdoor unit form an air conditioning unit;
the centralized controller is connected with the communication bus and can acquire the on-off state and the running state of each air conditioning unit;
the centralized controller is configured with the operation alternation time of each air conditioning unit and the alternation relationship of each air conditioning unit;
and the centralized controller controls the running state of each air conditioning unit according to the running rotation time, the on-off state and the rotation relation.
2. The central air-conditioning control system according to claim 1, wherein the central controller controls the operation states of the air-conditioning units according to the operation rotation time, the on-off state and the rotation relationship, specifically:
the centralized controller issues an inquiry command for inquiring the on-off state of an air conditioning unit A;
if the on-off state of the air conditioning unit A is the on-off state or the off-off state and the operation alternation time is not reached, not performing alternation on the air conditioning unit A;
if the on-off state of the air conditioning unit A is the on-off state and the running alternation time is reached, alternating the air conditioning unit A and controlling the air conditioning unit A to be turned off;
and if the on-off state of the air conditioning unit A is the off state and the running alternation time is reached, the air conditioning unit A is alternated and kept off.
3. The central air-conditioning control system according to claim 2,
and rotating the air conditioning unit A, specifically:
and sending the running state of the air conditioning unit A to an air conditioning unit B in a rotation relation with the air conditioning unit A, and running and updating the running state of the air conditioning unit B by the air conditioning unit B.
4. The central air-conditioning control system according to claim 2,
and the centralized controller issues the query instruction at intervals.
5. The central air-conditioning control system according to claim 1,
the centralized controller can also acquire the fault state of the air conditioning equipment;
and the centralized controller controls the running state of each air conditioning unit according to the running alternation time, the on-off state, the alternation relation and the fault state.
6. The central air-conditioning control system according to claim 5,
the centralized controller sets the alternate priorities of all the air conditioning units;
the centralized controller issues an inquiry command for inquiring the on-off state of an air conditioning unit A;
if the on-off state of the air conditioning unit A is a starting state, the fault state of the air conditioning unit A is not obtained, and the operation alternation time is not reached, or if the on-off state of the air conditioning unit A is a stopping state, and the operation alternation time is not reached, the air conditioning unit A is not alternated, and the fault states of all the air conditioning units with the priority lower than that of the air conditioning unit A are obtained at a time point which is t time away from the alternation operation time;
if the on-off state of the air conditioning unit A is the starting state, the fault state of the air conditioning unit A is not obtained, and the operation alternation time is reached, or if the on-off state of the air conditioning unit A is the starting state and the fault state of the air conditioning unit A is obtained, the air conditioning unit A is alternated and the air conditioning unit A is controlled to be turned off;
and if the on-off state of the air conditioning unit A is the off state and the running alternation time is reached, the air conditioning unit A is alternated and kept off.
7. The central air-conditioning control system according to claim 6,
and rotating the air conditioning unit A, specifically:
sending the running state of the air conditioning unit A to an air conditioning unit B which has no fault and has a rotation priority lower than that of the air conditioning unit A, and running and updating the running state of the air conditioning unit B by the air conditioning unit B;
and the rotation priority of the air conditioning unit B is higher than the rotation priorities of all the air conditioning units.
8. The central air-conditioning control system according to claim 6,
and the centralized controller issues the query instruction at intervals.
9. The central air-conditioning control system according to claim 6,
the centralized controller sets a rotation flag bit;
and if the air conditioning unit is detected to be out of order, setting the rotation zone position of the air conditioning unit to be 1, otherwise, setting the rotation zone position to be 0.
10. The central air-conditioning control system according to claim 6,
the centralized controller sets the air conditioning unit A as main equipment, and the rest air conditioning units are emergency equipment;
and the rotation priority of the air conditioning unit A is the highest level.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914762.2A CN113654201B (en) | 2021-08-10 | 2021-08-10 | Central air-conditioning control system |
| PCT/CN2022/079610 WO2023015874A1 (en) | 2021-08-10 | 2022-03-07 | Central air conditioning control system |
| CN202280026636.6A CN117098953A (en) | 2021-08-10 | 2022-03-07 | Central air conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114322213A (en) * | 2021-12-28 | 2022-04-12 | 上海美控智慧建筑有限公司 | Polling environmental control method, system, electronic equipment and storage medium |
| WO2023015874A1 (en) * | 2021-08-10 | 2023-02-16 | 青岛海信日立空调系统有限公司 | Central air conditioning control system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2023015874A1 (en) | 2023-02-16 |
| CN113654201B (en) | 2023-04-07 |
| CN117098953A (en) | 2023-11-21 |
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