CN110925950A - Control method and device of air conditioning system, electronic equipment and storage medium - Google Patents
Control method and device of air conditioning system, electronic equipment and storage medium Download PDFInfo
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- CN110925950A CN110925950A CN201911143238.9A CN201911143238A CN110925950A CN 110925950 A CN110925950 A CN 110925950A CN 201911143238 A CN201911143238 A CN 201911143238A CN 110925950 A CN110925950 A CN 110925950A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 219
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000004590 computer program Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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Abstract
The application provides a control method and device of an air conditioning system, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the exhaust pressure, the return air pressure and the pressure ratio of the air conditioning system in real time; adjusting the operation parameters of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions; recording the running time of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio still meet potential danger conditions; and controlling the air conditioning system to stop according to the condition that the running time meets the preset time range. The method and the device for detecting the air conditioner running range judge the running range where the air conditioner is located, adjust running parameters when the potential safety risk is determined to exist, record the continuous running time under the potential safety risk if the potential safety risk still exists, and stop the air conditioner after the continuous running time exceeds the preset time range, so that real equipment faults caused by the potential safety risk are avoided. And when the system is determined to have safety risk, the system is immediately stopped, so that the damage to equipment caused by overlarge exhaust pressure or return air pressure is avoided.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to a control method and device of an air conditioning system, electronic equipment and a storage medium.
Background
In an air conditioning system, in order to ensure that a compressor operates in a safe and reliable range, the pressure ratio of the compressor cannot be too high. Especially in a low-temperature heating environment, when the output of the compressor is high, the low pressure of the system is very low, so that the problem that the pressure ratio of the system is too high is caused, and the compressor is damaged when the pressure ratio of the system is too high for a long time.
Disclosure of Invention
The application provides a control method and device of an air conditioning system, electronic equipment and a storage medium, wherein the operation range of an air conditioner is judged according to exhaust pressure, return air pressure and a pressure ratio value, operation parameters are adjusted when potential safety risks exist, if the potential safety risks still exist, the continuous operation time under the potential safety risks is recorded, and the air conditioner is shut down after the continuous operation time exceeds a preset time range, so that real equipment faults caused by the potential safety risks are avoided, namely, the equipment damage caused by the overlarge exhaust pressure or return air pressure is avoided.
An embodiment of a first aspect of the present application provides a control method of an air conditioning system, where the method includes:
acquiring the exhaust pressure, the return air pressure and the pressure ratio of the air conditioning system in real time;
adjusting the operation parameters of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions;
recording the running time of the air conditioning system according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition;
and controlling the air conditioning system to stop according to the condition that the running time meets a preset time range.
In some embodiments of the present application, the adjusting the operating parameter of the air conditioning system includes:
reducing an output frequency of a compressor in the air conditioning system; and/or the presence of a gas in the gas,
controlling the opening of a valve body in the air conditioning system to expand a preset angle; and/or the presence of a gas in the gas,
the method comprises the following steps of increasing a condensation windshield of the air conditioning system to a first preset number of gears; and/or the presence of a gas in the gas,
and lowering the evaporation windshield of the air conditioning system by a second preset number of gears.
In some embodiments of the present application, the recording the operation time of the air conditioning system includes:
recording the current single running time of the air conditioning system;
acquiring historical operation time of the air conditioning system;
and calculating the current accumulated running time of the air conditioning system according to the single running time and the historical running time.
In some embodiments of the present application, the controlling the air conditioning system to stop according to the running time satisfying a preset time range includes:
and controlling the air conditioning system to stop according to the condition that the single running time is greater than or equal to a first preset time threshold value or the accumulated running time is greater than or equal to a second preset time threshold value.
In some embodiments of the present application, after the adjusting the operating parameter of the air conditioning system, the method further includes:
and keeping the air conditioning system to continuously operate according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system no longer meet the potential danger condition.
In some embodiments of the present application, the method further comprises:
and controlling the air conditioning system to stop according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset dangerous conditions.
In some embodiments of the present application, the method further comprises:
and keeping the air conditioning system to continue to operate according to the exhaust pressure, the return air pressure and the pressure ratio value, wherein the exhaust pressure, the return air pressure and the pressure ratio value do not meet the potential dangerous condition or the dangerous condition.
In some embodiments of the present application, before the controlling the air conditioning system to stop, the method further includes:
sending fault alarm information to a management device, wherein the fault alarm information comprises a device identifier of the air conditioning system, the current exhaust pressure, the return air pressure and the pressure ratio;
and recording the current system time as the fault alarm time, and adding one to the total number of faults corresponding to the air conditioning system.
In some embodiments of the present application, after the controlling the air conditioning system to stop, the method further includes:
controlling the air conditioning system to restart according to a starting instruction received again after the air conditioning system is stopped for a preset time; or,
controlling the air conditioning system to restart according to a starting instruction received again after the air conditioning system is stopped for a preset time and the total number of faults is less than a first preset number; or,
and controlling the air conditioning system to restart according to the starting instruction received again after the air conditioning system is stopped for the preset time and the accumulated failure times in the preset time period are less than a second preset time.
An embodiment of a second aspect of the present application provides a control apparatus of an air conditioning system, the apparatus including:
the acquisition module is used for acquiring the exhaust pressure, the return pressure and the pressure ratio of the air conditioning system in real time;
the parameter adjusting module is used for adjusting the operating parameters of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions;
the time recording module is used for recording the running time of the air conditioning system according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition;
and the shutdown module is used for controlling the air conditioning system to be shut down according to the condition that the running time meets a preset time range.
An embodiment of the third aspect of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the method of the first aspect.
In some embodiments of the present application, the electronic device includes an air conditioner or a controller disposed within the air conditioner.
An embodiment of the fourth aspect of the present application proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method as described in the first aspect above.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
in the embodiment of the application, the operation range of the air conditioner is judged according to the exhaust pressure, the return pressure and the pressure ratio, the operation parameters are adjusted when the potential safety risk is determined to exist, if the potential safety risk still exists, the continuous operation time under the potential safety risk is recorded, the air conditioner is stopped when the continuous operation time exceeds the preset time range, and the real equipment fault caused by the potential safety risk is avoided.
Further, the system is determined to be stopped immediately when safety risks do exist, equipment damage caused by overlarge exhaust pressure or return air pressure is avoided, and the service life of the air conditioning system is guaranteed.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating a control method of an air conditioning system according to an embodiment of the present application;
fig. 2 is another flowchart illustrating a control method of an air conditioning system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram illustrating a control device of an air conditioning system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 5 is a schematic diagram of a storage medium provided in an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In addition, the terms "first" and "second", etc. are used to distinguish different objects, rather than to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The following describes a control method and device of an air conditioning system, an air conditioner and a storage medium according to an embodiment of the present application with reference to the drawings.
Referring to fig. 1, an embodiment of the present application provides a control method for an air conditioning system, which determines whether the air conditioning system is in a safe operation range by obtaining parameters of the air conditioning system, such as a pressure ratio, an exhaust pressure, a return pressure, and an operation time. And when the air conditioning system is judged to be out of the safe operation range, the air conditioning system is controlled to be stopped in time, so that the service life of the air conditioning system is ensured. As shown in fig. 1, the method specifically includes the following steps:
step 101: and acquiring the exhaust pressure, the return air pressure and the pressure ratio of the air conditioning system in real time.
In the embodiment of the application, pressure sensors are installed at an air outlet and an air return outlet of a compressor in an air conditioning system, and the exhaust pressure and the air return pressure of the air conditioning system are detected in real time through the pressure sensors. And calculating the ratio of the exhaust pressure to the return air pressure, and taking the ratio as the current pressure ratio of the air conditioning system.
Step 102: and adjusting the operation parameters of the air conditioning system according to the condition that the exhaust pressure, the return pressure and the pressure ratio meet the preset potential danger conditions.
The preset potential danger conditions comprise a first value interval [ b, g ] corresponding to the exhaust pressure, a second value interval (i, c ] or [ d, h) corresponding to the return pressure and a third value interval (k, e ] or [ f, j) corresponding to the pressure ratio. When the exhaust pressure is in the first value interval [ b, g ], or the return pressure is in the second value interval (i, c) or [ d, h), or the pressure ratio is in the third value interval (k, e) or [ f, j), the air conditioning system has the potential risk of equipment damage caused by the overlarge exhaust pressure, return pressure or pressure ratio.
Wherein, the values of b, g, i, c, d, h, k, e, f and j are determined by a plurality of tests. The value of b can be 3.6 MPa, 3.7 MPa or 3.8 MPa, etc. The value of g can be [3.8, 4.0], and the value of g can be 3.8 MPa, 3.9 MPa or 4.0 MPa and the like. The value of i is less than or equal to 0.05 MPa, for example, the value of i can be 0.05 MPa, 0.03 MPa and the like. The value of c is more than or equal to 0.05 MPa, for example, the value of c can be 0.06 MPa, 0.07 MPa and the like. d can be 1.1 MPa or 1.2 MPa, etc. The value of h is more than or equal to 1.3 MPa, for example, the value of h can be 1.3 MPa or 1.5 MPa, etc. The value of k is less than or equal to 1.5 MPa, for example, the value of k can be 1.5 or 1.2. The value of e is more than or equal to 1.5, for example, the value of e can be 1.8 or 2.0. The value of f is less than or equal to 8, for example, the value of f can be 8 or 5. j is greater than 8, for example j can be 10 or 12. In the embodiment of the present application, values of b, g, i, c, d, h, k, e, f, and j are not limited, and in practical applications, the values of b, g, i, c, d, h, k, e, f, and j may be determined according to requirements.
After the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system are obtained in step 101, it is determined whether the exhaust pressure is in the first value range [ b, g ], whether the return air pressure is in the second value range (i, c) or [ d, h), and whether the pressure ratio is in the third value range (k, e) or [ f, j).
When the exhaust pressure is determined to be in a first value interval [ b, g ], the return pressure is determined to be in a second value interval (i, c ] or [ d, h), or the pressure ratio is determined to be in a third value interval (k, e ] or [ f, j), the current exhaust pressure, the return pressure and the pressure ratio of the air-conditioning system are determined to meet preset potential danger conditions, and the current potential safety hazard of the air-conditioning system is indicated.
In order to eliminate potential safety hazards of the air conditioning system, the operation parameters of the air conditioning system are adjusted to reduce the exhaust pressure, return air pressure or pressure ratio of the air conditioning system.
Specifically, the output frequency of the compressor in the air conditioning system may be reduced by a preset value, or may be reduced by a preset ratio. The output frequency of the compressor is reduced, so that the exhaust pressure of the air conditioning system is reduced, the return pressure is increased, and the pressure ratio of the compressor is reduced.
The opening of a valve body in the air conditioning system is controlled to expand a preset angle, and the valve body can be an electromagnetic bypass valve connected between a high-pressure pipeline and a low-pressure pipeline or an electronic expansion valve connected between a heat exchanger and the pipeline. The opening of the valve body is increased, so that the exhaust pressure of the air conditioning system is reduced, the return pressure is increased, and the pressure ratio of the compressor is reduced.
The method comprises the steps of increasing a condensation windshield of the air conditioning system to a first preset number of gears. The first predetermined number may be 1 or 2, etc. The condensation damper is adjusted to be high, so that the exhaust pressure and the return pressure are reduced.
And lowering the evaporation damper of the air conditioning system by a second preset number of gears. The second predetermined number may be 1 or 2, etc. The lower evaporation damper can make the exhaust pressure and the return pressure smaller.
In the embodiment of the present application, when the air conditioning system is adjusted in parameters, one or more of the parameters of the compressor, such as the output frequency, the valve opening, the condensation damper and the evaporation damper, may be adjusted. In addition to the above parameter adjustment methods, other parameter adjustment methods that can also reduce the exhaust pressure, the return pressure, or the pressure ratio value are also within the scope of the embodiments of the present application.
Step 103: and recording the running time of the air conditioning system according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition.
After parameter adjustment by the operation of step 102, the discharge pressure, return pressure, or pressure ratio is reduced and the potential safety hazard presented by the air conditioning system may be eliminated. At this time, the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system are obtained, the current exhaust pressure, return air pressure and pressure ratio are matched with preset potential danger conditions, whether the exhaust pressure is located in a first value interval [ b, g ], whether the return air pressure is located in a second value interval (i, c ] or [ d, h) and whether the pressure ratio is located in a third value interval (k, e ] or [ f, j) are judged.
And when the current exhaust pressure, the return pressure and the pressure ratio are determined not to meet the potential danger condition any more when the current exhaust pressure is determined not to be in the first value interval [ b, g ], the return pressure is determined not to be in the second value interval (i, c ] or [ d, h) and the pressure ratio is determined not to be in the third value interval (k, e ] or [ f, j). And keeping the air conditioning system to continuously operate according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system no longer meet the potential danger condition.
When the current exhaust pressure is determined to be in a first value interval [ b, g ], or the return pressure is determined to be in a second value interval (i, c ] or [ d, h), or the pressure ratio is determined to be in a third value interval (k, e ] or [ f, j), the current exhaust pressure, the return pressure and the pressure ratio of the air-conditioning system are determined to still meet preset potential danger conditions, and the potential safety hazard in the air-conditioning system is indicated to be not eliminated along with parameter adjustment. The operating time of the air conditioning system is then recorded. The operation time of the air conditioning system comprises a single operation time and an accumulated operation time.
Specifically, recording the current single running time of the air conditioning system; acquiring historical operating time of an air conditioning system; and calculating the current accumulated running time of the air conditioning system according to the single running time and the historical running time. And the historical operation time is the sum of the continuous multiple operation time of the air conditioning system under the condition that the exhaust pressure, the return air pressure and the pressure ratio meet the preset potential danger condition. And calculating the sum of the single running time and the historical running time, and taking the calculated sum as the current accumulated running time of the air conditioning system.
Step 104: and controlling the air conditioning system to stop according to the condition that the running time meets the preset time range.
The preset time range comprises a first preset time threshold corresponding to single running time and a second preset time threshold corresponding to accumulated running time. The first preset time threshold may be 2 hours or 4 hours, etc. The second preset time threshold may be 10 hours or 20 hours, etc.
And controlling the air conditioning system to stop according to the condition that the single running time is greater than or equal to a first preset time threshold value or the accumulated running time is greater than or equal to a second preset time threshold value. And if the single running time is less than the first preset time threshold and the accumulated running time is less than the second preset time threshold, keeping the air conditioning system running continuously until the running time meets the preset time range, and controlling the air conditioning system to stop.
In the embodiment of the application, before the air conditioning system is controlled to stop, fault alarm information is also sent to the management equipment. The management device may be a server corresponding to the air conditioning system, a terminal of a maintenance person, or a terminal of a user. The fault alarm information comprises equipment identification of the air conditioning system and current exhaust pressure, return air pressure and pressure ratio. The fault alarm information is sent to the management equipment to give a fault alarm, so that management personnel can timely know that the hidden danger of equipment crushing exists due to the fact that the exhaust pressure, the return pressure or the pressure ratio value in the air conditioning system is high, and maintenance can be timely arranged. The embodiment of the application also records the current system time as the fault alarm time, and adds one to the total number of faults corresponding to the air conditioning system.
When the exhaust pressure, the return pressure, and the pressure ratio are matched with the preset dangerous condition in step 102, the exhaust pressure, the return pressure, and the pressure ratio may not satisfy the preset dangerous condition. At this time, the exhaust pressure, the return pressure and the pressure ratio are further matched with the preset dangerous conditions. And controlling the air conditioning system to stop according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset dangerous conditions. Or according to the exhaust pressure, the return air pressure and the pressure ratio, the air conditioning system is kept to continue to operate, wherein the exhaust pressure, the return air pressure and the pressure ratio do not meet the potential danger condition or the danger condition.
The preset dangerous conditions comprise a fourth value interval [ g, plus infinity ] corresponding to the exhaust pressure, a fifth value interval [ h, plus infinity ] or (0, i ] corresponding to the return gas pressure and a sixth value interval [ j, 1) or (0, k) corresponding to the pressure ratio. When the exhaust pressure is in the fourth value range [ g, + ∞ ], or the return pressure is in the fifth value range [ h, + ∞ ] or (0, i ], or the pressure ratio is in the sixth value range [ j, 1) or (0, k ], the air conditioning system is likely to cause equipment damage due to the excessive exhaust pressure, return pressure or pressure ratio.
Wherein the values of g, h, i, j and k are determined by a plurality of tests. g. The possible values of h, i, j and k are the same as those described above, and are not described herein again.
Judging whether the exhaust pressure is in the fourth value range [ g, + ∞ ], judging whether the return pressure is in the fifth value range [ h, + ∞ ] or (0, i ], and judging whether the pressure ratio is in the sixth value range [ j, 1) or (0, k ].
When the exhaust pressure is determined to be located in a fourth value interval [ g, + ∞ ], or the return pressure is determined to be located in a fifth value interval [ h, + ∞ ] or (0, i ], or the pressure ratio value is determined to be located in a sixth value interval [ j, 1) or (0, k ], it is determined that the current exhaust pressure, return pressure and pressure ratio value of the air-conditioning system meet preset dangerous conditions, it is indicated that the current equipment damage of the air-conditioning system is likely to be caused by the fact that the exhaust pressure or the return pressure is too large, the air-conditioning system is controlled to stop, and the equipment damage is avoided.
Similarly, fault alarm information is sent to the management equipment before the air conditioning system is controlled to stop, so that management personnel can know that the exhaust pressure, the return pressure or the pressure ratio value in the air conditioning system is too high in time, and then maintenance is arranged in time.
In the embodiment of the application, the exhaust pressure, the return pressure and the pressure ratio still meet the preset potential danger conditions after the parameters are adjusted, and the machine is stopped when the machine continuously operates for more than the preset time range under the potential danger conditions. Or stopping the machine when the exhaust pressure, the return air pressure and the pressure ratio meet preset dangerous conditions. In the two cases, after the air conditioning system is shut down, if the starting instruction is received again within the preset time, the air conditioning system is not started. And if the starting instruction is received again after the preset time length of shutdown, controlling the air conditioning system to restart according to the starting instruction received again after the preset time length of shutdown. The preset time can be half a day or one day, so that the time of the preset time is reserved for maintenance of the air conditioning system, and the possibility that the air conditioning system still has a fault risk when the air conditioning system is started again is reduced.
But it is also possible that the air conditioning system is not maintained in time for a preset time period, resulting in the air conditioning system still having a safety risk. Therefore, when the starting-up instruction is received again after the preset shutdown time, whether the total failure times of the air-conditioning system are smaller than the first preset times is judged, and if yes, the air-conditioning system is controlled to restart according to the starting-up instruction received again after the preset shutdown time and the total failure times smaller than the first preset times. If the total number of faults of the air conditioning system is larger than or equal to the first preset number, the air conditioning system is not started until the air conditioning system cannot be started again after being maintained. The first preset number of times may be 3 times, 5 times, etc.
When the starting-up instruction is received again after the preset time of shutdown, the accumulated failure times in the preset time period can be counted according to the recorded failure alarm time, whether the accumulated failure times in the preset time period is smaller than a second preset time is judged, and if yes, the air conditioning system is controlled to restart according to the starting-up instruction received again after the preset time of shutdown and the accumulated failure times in the preset time period which are smaller than the second preset time. And if the accumulated failure times in the preset time period are greater than or equal to the second preset times, the air conditioning system is not controlled to be started again until the air conditioning system is maintained. The preset time period may be one week or 10 days, etc. The second predetermined number of times may be 3 times, 5 times, etc.
In order to facilitate understanding of the control method provided in the embodiments of the present application, the following description is briefly made with reference to fig. 2. As shown in fig. 2, S1: and when the air conditioning system normally operates, acquiring the exhaust pressure, the return pressure and the pressure ratio in real time. S2: judging whether the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions, if so, executing step S3; if not, step S8 is performed. S3: and adjusting the operating parameters of the air conditioning system. S4: judging whether the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition, if so, executing step S5; if not, return to S1. S5: recording the running time of the air conditioning system. S6: judging whether the running time meets a preset time range or not, and if so, executing the step S7; if not, return to S5. S7: and sending fault alarm information to the management equipment to control the air conditioning system to stop. S8: judging whether the exhaust pressure, the return air pressure and the pressure ratio meet preset dangerous conditions, if so, executing step S7; if not, return to S1.
In the embodiment of the application, the exhaust pressure, the return pressure and the pressure ratio of the air conditioning system are obtained in real time, the operation range of the air conditioning system is judged according to the exhaust pressure, the return pressure and the pressure ratio, the operation parameters of the air conditioning system are adjusted when the potential safety risk of the air conditioning system is determined, if the potential safety risk still exists in the air conditioning system, the continuous operation time of the air conditioning system under the potential safety risk is recorded, the air conditioning system is controlled to stop after the continuous operation time exceeds the preset time range, and real equipment failure caused by the potential safety risk along with the extension of the operation time is avoided. The embodiment of the application also determines that the exhaust pressure, the return pressure and the pressure ratio meet preset dangerous conditions, namely when the air conditioning system is determined to have safety risks, the air conditioning system is immediately stopped, and equipment damage caused by overlarge exhaust pressure or return pressure is avoided.
Referring to fig. 3, an embodiment of the present application further provides a control device of an air conditioning system, where the control device is configured to execute the control method of the air conditioning system according to the foregoing embodiment, and the control device includes:
the acquisition module 301 is used for acquiring the exhaust pressure, the return air pressure and the pressure ratio of the air conditioning system in real time;
the parameter adjusting module 302 is used for adjusting the operation parameters of the air conditioning system according to the condition that the exhaust pressure, the return air pressure and the pressure ratio meet the preset potential danger conditions;
the time recording module 303 is configured to record the operation time of the air conditioning system according to that the current exhaust pressure, return air pressure, and pressure ratio of the air conditioning system still meet the potential risk condition;
and the shutdown module 304 is used for controlling the air conditioning system to be shut down according to the condition that the running time meets the preset time range.
A parameter adjusting module 302 for reducing the output frequency of a compressor in an air conditioning system; and/or controlling the opening of a valve body in the air conditioning system to expand a preset angle; and/or increasing the condensation windshield of the air conditioning system to a first preset number of gears; and/or, lowering an evaporation damper of the air conditioning system by a second preset number of gears.
The time recording module 303 is used for recording the current single running time of the air conditioning system; acquiring historical operating time of an air conditioning system; and calculating the current accumulated running time of the air conditioning system according to the single running time and the historical running time.
And the shutdown module 304 is configured to control the air conditioning system to shutdown according to whether the single running time is greater than or equal to a first preset time threshold or the accumulated running time is greater than or equal to a second preset time threshold.
The device also includes: the operation maintaining module is used for maintaining the air conditioning system to continuously operate according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system do not meet the potential danger condition any more; and keeping the air conditioning system to continue to operate according to the condition that the exhaust pressure, the return air pressure and the pressure ratio value do not meet the potential dangerous condition or the dangerous condition.
And the shutdown module 304 is further configured to control the air conditioning system to shutdown according to that the exhaust pressure, the return pressure, and the pressure ratio meet preset dangerous conditions.
The device also includes: the alarm module is used for sending fault alarm information to the management equipment, wherein the fault alarm information comprises an equipment identifier of the air conditioning system and the current exhaust pressure, return air pressure and pressure ratio; and recording the current system time as the fault alarm time, and adding one to the total number of faults corresponding to the air conditioning system.
The device also includes: the restarting module is used for controlling the air conditioning system to restart according to the starting instruction received again after the preset time of shutdown; or controlling the air conditioning system to restart according to the starting instruction received again after the preset time of shutdown and the total number of faults smaller than the first preset number; or controlling the air conditioning system to restart according to the starting instruction received again after the air conditioning system is stopped for the preset time and the accumulated failure times in the preset time period are less than the second preset times.
In the embodiment of the application, the exhaust pressure, the return pressure and the pressure ratio of the air conditioning system are obtained in real time, the operation range of the air conditioning system is judged according to the exhaust pressure, the return pressure and the pressure ratio, the operation parameters of the air conditioning system are adjusted when the potential safety risk of the air conditioning system is determined, if the potential safety risk still exists in the air conditioning system, the continuous operation time of the air conditioning system under the potential safety risk is recorded, the air conditioning system is controlled to stop after the continuous operation time exceeds the preset time range, and real equipment failure caused by the potential safety risk along with the extension of the operation time is avoided. The embodiment of the application also determines that the exhaust pressure, the return pressure and the pressure ratio meet preset dangerous conditions, namely when the air conditioning system is determined to have safety risks, the air conditioning system is immediately stopped, and equipment damage caused by overlarge exhaust pressure or return pressure is avoided.
The embodiment of the present application further provides an electronic device corresponding to the control method of the air conditioning system provided in the foregoing embodiment, so as to execute the control method of the air conditioning system, where the electronic device may be an air conditioner, or may be a controller (for example, a main control board, etc.) provided in the air conditioner, and the embodiment of the present application is not limited in this embodiment.
Referring to fig. 4, a schematic diagram of an electronic device provided in some embodiments of the present application is shown. As shown in fig. 4, the electronic device 2 includes: the system comprises a processor 200, a memory 201, a bus 202 and a communication interface 203, wherein the processor 200, the communication interface 203 and the memory 201 are connected through the bus 202; the memory 201 stores a computer program that can be executed on the processor 200, and the processor 200 executes the control method of the air conditioning system provided in any one of the foregoing embodiments when executing the computer program.
The Memory 201 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 203 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The processor 200 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 200. The Processor 200 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and completes the steps of the method in combination with the hardware thereof.
The electronic equipment provided by the embodiment of the application and the control method of the air conditioning system provided by the embodiment of the application have the same inventive concept and have the same beneficial effects as the method adopted, operated or realized by the electronic equipment.
Referring to fig. 5, a computer readable storage medium is shown as an optical disc 30, on which a computer program (i.e., a program product) is stored, and when the computer program is executed by a processor, the computer program executes the method for controlling an air conditioning system according to any of the foregoing embodiments.
It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory, or other optical and magnetic storage media, which are not described in detail herein.
The computer-readable storage medium provided by the above-mentioned embodiment of the present application and the control method of the air conditioning system provided by the embodiment of the present application have the same beneficial effects as the method adopted, operated or implemented by the application program stored in the computer-readable storage medium.
It should be noted that:
the algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. In addition, this application is not directed to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the present application as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the present application.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the creation apparatus of a virtual machine according to embodiments of the present application. The present application may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. A method of controlling an air conditioning system, the method comprising:
acquiring the exhaust pressure, the return air pressure and the pressure ratio of the air conditioning system in real time;
adjusting the operation parameters of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions;
recording the running time of the air conditioning system according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition;
and controlling the air conditioning system to stop according to the condition that the running time meets a preset time range.
2. The method of claim 1, wherein the adjusting the operating parameter of the air conditioning system comprises:
reducing an output frequency of a compressor in the air conditioning system; and/or the presence of a gas in the gas,
controlling the opening of a valve body in the air conditioning system to expand a preset angle; and/or the presence of a gas in the gas,
the method comprises the following steps of increasing a condensation windshield of the air conditioning system to a first preset number of gears; and/or the presence of a gas in the gas,
and lowering the evaporation windshield of the air conditioning system by a second preset number of gears.
3. The method of claim 1, wherein said recording the run time of the air conditioning system comprises:
recording the current single running time of the air conditioning system;
acquiring historical operation time of the air conditioning system;
and calculating the current accumulated running time of the air conditioning system according to the single running time and the historical running time.
4. The method of claim 3, wherein the controlling the air conditioning system to be shut down according to the running time satisfying a preset time range comprises:
and controlling the air conditioning system to stop according to the condition that the single running time is greater than or equal to a first preset time threshold value or the accumulated running time is greater than or equal to a second preset time threshold value.
5. The method of any of claims 1-4, wherein after adjusting the operating parameter of the air conditioning system, further comprising:
and keeping the air conditioning system to continuously operate according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system no longer meet the potential danger condition.
6. The method of claim 1, further comprising:
and controlling the air conditioning system to stop according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset dangerous conditions.
7. The method of claim 6, further comprising:
and keeping the air conditioning system to continue to operate according to the exhaust pressure, the return air pressure and the pressure ratio value, wherein the exhaust pressure, the return air pressure and the pressure ratio value do not meet the potential dangerous condition or the dangerous condition.
8. The method of claim 1 or 6, wherein before controlling the air conditioning system to stop, further comprising:
sending fault alarm information to a management device, wherein the fault alarm information comprises a device identifier of the air conditioning system, the current exhaust pressure, the return air pressure and the pressure ratio;
and recording the current system time as the fault alarm time, and adding one to the total number of faults corresponding to the air conditioning system.
9. The method of claim 8, wherein after controlling the air conditioning system to shut down, further comprising:
controlling the air conditioning system to restart according to a starting instruction received again after the air conditioning system is stopped for a preset time; or,
controlling the air conditioning system to restart according to a starting instruction received again after the air conditioning system is stopped for a preset time and the total number of faults is less than a first preset number; or,
and controlling the air conditioning system to restart according to the starting instruction received again after the air conditioning system is stopped for the preset time and the accumulated failure times in the preset time period are less than a second preset time.
10. A control device of an air conditioning system, characterized in that the device comprises:
the acquisition module is used for acquiring the exhaust pressure, the return pressure and the pressure ratio of the air conditioning system in real time;
the parameter adjusting module is used for adjusting the operating parameters of the air conditioning system according to the fact that the exhaust pressure, the return air pressure and the pressure ratio meet preset potential danger conditions;
the time recording module is used for recording the running time of the air conditioning system according to the condition that the current exhaust pressure, return air pressure and pressure ratio of the air conditioning system still meet the potential danger condition;
and the shutdown module is used for controlling the air conditioning system to be shut down according to the condition that the running time meets a preset time range.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes when executing the computer program to implement the method according to any of claims 1-9.
12. The electronic device of claim 11, wherein the electronic device comprises an air conditioner or a controller disposed within an air conditioner.
13. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1-9.
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