CN113865001A - Air conditioning unit control method and device and air conditioning unit - Google Patents
Air conditioning unit control method and device and air conditioning unit Download PDFInfo
- Publication number
- CN113865001A CN113865001A CN202111250503.0A CN202111250503A CN113865001A CN 113865001 A CN113865001 A CN 113865001A CN 202111250503 A CN202111250503 A CN 202111250503A CN 113865001 A CN113865001 A CN 113865001A
- Authority
- CN
- China
- Prior art keywords
- sensor
- air conditioning
- data
- historical
- conditioning unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 206
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000002159 abnormal effect Effects 0.000 claims description 26
- 230000002547 anomalous effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 5
- 238000013024 troubleshooting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning unit control method, a control device and an air conditioning unit, wherein the method comprises the following steps: acquiring current operation data detected by a sensor of an air conditioning unit; judging whether the sensor fails according to the current operation data; when the sensor fails, acquiring historical operating parameters of the air conditioner group; the air conditioning group at least comprises an air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance; and controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group. The invention solves the problem that the air conditioning unit can not normally operate after the sensor fails and the user experience is influenced in the prior art, and can ensure the normal operation of the unit before the sensor fails to be eliminated, thereby improving the user experience.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning unit control method, an air conditioning unit control device and an air conditioning unit.
Background
In air conditioning systems, sensors are used in a wide variety of applications. Taking the multi-split system outdoor unit as an example, the outdoor unit comprises an outdoor environment temperature sensing bulb, a defrosting temperature sensing bulb, a heat exchanger temperature sensing bulb, a steam inlet/outlet temperature sensing bulb, an exhaust temperature sensing bulb, a high/low pressure sensor and the like; the inner machine is provided with an inlet/outlet pipe temperature sensing bulb, an outlet/return air temperature sensing bulb and the like. Common fault types of temperature sensors are short circuits, open circuits, temperature drifts, and the like. When the temperature sensor breaks down, the current control logic reports the corresponding sensor fault to the fault machine, and before the fault is eliminated, the fault machine can not be started again to operate, so that the user experience is greatly reduced.
Aiming at the problem that the air conditioning unit cannot normally operate after a sensor fails and user experience is influenced in the related art, an effective solution is not provided at present.
Disclosure of Invention
The invention provides an air conditioning unit control method, a control device and an air conditioning unit, and at least solves the problem that in the prior art, after a sensor fails, the air conditioning unit cannot normally operate, and user experience is influenced.
In order to solve the technical problem, according to an aspect of an embodiment of the present invention, there is provided an air conditioning unit control method, including:
acquiring current operation data detected by a sensor of an air conditioning unit;
judging whether the sensor fails according to the current operation data;
when the sensor fails, acquiring historical operating parameters of the air conditioner group; the air conditioning group at least comprises an air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
and controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group.
Further, judging whether the sensor fails according to the current operation data comprises the following steps: judging whether the sensor is short-circuited or open-circuited according to the current operation data; if the sensor is not short-circuited or disconnected, obtaining historical sensor operation data of the air conditioner group, and judging whether the sensor is abnormal according to the historical sensor operation data; and determining the sensor fault when the sensor is short-circuited or broken or the sensor data is abnormal.
Further, judging whether the sensor is short-circuited or open-circuited according to the current operation data comprises the following steps: judging whether the current operation data is short circuit data or open circuit data; the short circuit data is data generated when the sensor is in short circuit, and the open circuit data is data generated when the sensor is in open circuit; if so, it is determined that the sensor is shorted or open.
Further, acquiring historical sensor operation data of the air conditioner group comprises the following steps: detecting whether the air conditioning unit has historical sensor operation data under the same working condition as the current working condition; if so, taking historical sensor operation data of the same working condition as the current working condition in the air conditioning unit as historical first sensor data; otherwise, detecting whether the similar air conditioning units exist or not; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has the historical sensor operation data under the same working condition as the current working condition, and if so, taking the historical sensor operation data under the same working condition as the current working condition in the similar air conditioning unit as the historical second sensor operation data; and if the same type of air conditioning unit does not exist or the second sensor historical data does not exist, acquiring the historical sensor operation data of the working condition similar to the current working condition in the air conditioning unit as the third sensor historical data.
Further, judging whether the data of the sensor is abnormal or not according to the historical operating data of the sensor comprises the following steps: when the historical sensor operating data is first historical sensor operating data, judging whether the difference value between the first historical sensor operating data and the current operating data is smaller than or equal to a first preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; when the historical sensor operating data is second historical sensor operating data, judging whether the difference value between the second historical sensor operating data and the current operating data is smaller than or equal to a second preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the second preset difference is greater than the first preset difference; when the historical sensor operating data is third sensor historical data, judging whether the difference value between the third sensor historical data and the current operating data is smaller than or equal to a third preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the third preset difference is greater than the first preset difference.
Further, acquiring historical operating parameters of the air conditioner group comprises the following steps: detecting whether the air conditioning unit has historical operating parameters under the same working condition as the current working condition; if so, taking the historical operation parameters of the same working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group; otherwise, detecting whether the similar air conditioning units exist or not; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has historical operation parameters under the same working condition as the current working condition, and if so, taking the historical operation parameters under the same working condition as the current working condition in the similar air conditioning unit as the historical operation parameters of the air conditioning group; and if the same type of air conditioning unit does not exist or the same type of air conditioning unit does not have historical operation parameters of the same working condition as the current working condition, acquiring the historical operation parameters of the similar working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group.
Further, after controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group, the method further comprises the following steps: detecting whether data of a sensor which does not have a fault is normal; if the operation is normal, the operation of the air conditioning unit is continuously controlled according to the historical operation parameters of the air conditioning group; otherwise, stopping the machine and carrying out fault prompt.
Further, detecting whether data of the sensor which does not have the fault is normal comprises: judging whether the data of the sensor without the fault is in a preset range or whether the variation trend of the data of the sensor without the fault is consistent with the preset trend; if so, determining that the data of the sensor without the fault is normal; otherwise, determining that the data of the sensor which does not have the fault is abnormal.
According to another aspect of an embodiment of the present invention, there is provided an air conditioning unit control apparatus including:
the first acquisition module is used for acquiring current operation data detected by a sensor of the air conditioning unit;
the judging module is used for judging whether the sensor fails according to the current operation data;
the second acquisition module is used for acquiring historical operating parameters of the air conditioner group when the sensor fails; the air conditioning group at least comprises an air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
and the control module is used for controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group.
According to a further aspect of an embodiment of the present invention, there is provided an air conditioning unit including the air conditioning unit control device as described above.
According to yet another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
The invention provides an operation control method of a unit when a sensor fails, which comprises the steps of obtaining historical operation parameters of an air conditioning group after the sensor such as a temperature bulb of the unit fails, and controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group. Therefore, the problem that the air conditioning unit can not normally operate after the sensor fails and user experience is affected in the prior art can be effectively solved, normal operation of the unit can be guaranteed before troubleshooting, and user experience is improved.
Drawings
FIG. 1 is an alternative flow chart of an air conditioning unit control method according to an embodiment of the present invention;
FIG. 2 is another alternative flow chart of an air conditioning unit control method according to an embodiment of the present invention; and
fig. 3 is a block diagram of an alternative configuration of an air conditioning unit control apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention.
Example 1
In a preferred embodiment 1 of the present invention, an air conditioning unit control method is provided, and specifically, fig. 1 shows an alternative flowchart of the method, as shown in fig. 1, the method includes the following steps S102 to S108:
s102: acquiring current operation data detected by a sensor of an air conditioning unit;
s104: judging whether the sensor fails according to the current operation data;
s106: when the sensor fails, acquiring historical operating parameters of the air conditioner group; the air conditioning group at least comprises an air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
s108: and controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group.
In the above embodiment, an operation control scheme of the unit when the sensor fails is provided, where after the sensor such as a thermal bulb of the unit fails, historical operation parameters of the air conditioning group are obtained, and the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group. Therefore, the problem that the air conditioning unit can not normally operate after the sensor fails and user experience is affected in the prior art can be effectively solved, normal operation of the unit can be guaranteed before troubleshooting, and user experience is improved.
As the number of sensors in the air conditioner is large, taking an external unit of a multi-split air conditioner as an example, the external unit comprises an outdoor environment temperature sensing bulb, a defrosting temperature sensing bulb, a heat exchanger temperature sensing bulb, a steam inlet/outlet temperature sensing bulb, an exhaust temperature sensing bulb, a high/low pressure sensor and the like; the inner machine is provided with an inlet/outlet pipe temperature sensing bulb, an outlet/return air temperature sensing bulb and the like. Therefore, when the sensor failure is determined, all the sensors may be checked at regular time and at the same time, or periodically and alternately, or may be checked at different frequencies according to the frequency of use of the sensors, the degree of importance that can affect the air conditioner shutdown, and the like.
Judging whether the sensor fails according to the current operation data, comprising the following steps: judging whether the sensor is short-circuited or open-circuited according to the current operation data; if the sensor is not short-circuited or disconnected, obtaining historical sensor operation data of the air conditioner group, and judging whether the sensor is abnormal according to the historical sensor operation data; and determining the sensor fault when the sensor is short-circuited or broken or the sensor data is abnormal.
Judging whether the sensor is short-circuited or open-circuited according to the current operation data, comprising the following steps of: judging whether the current operation data belongs to short circuit data or open circuit data; the short circuit data is data generated when the sensor is in short circuit, and the open circuit data is data generated when the sensor is in open circuit;
if so, it is determined that the sensor is shorted or open.
Acquiring historical sensor operation data of an air conditioner group, comprising the following steps: detecting whether the air conditioning unit has historical sensor operation data under the same working condition as the current working condition; if so, taking historical sensor operation data of the same working condition as the current working condition in the air conditioning unit as historical first sensor data; otherwise, detecting whether the similar air conditioning units exist or not; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has the historical sensor operation data under the same working condition as the current working condition, and if so, taking the historical sensor operation data under the same working condition as the current working condition in the similar air conditioning unit as the historical second sensor operation data; and if the same type of air conditioning unit does not exist or the second sensor historical data does not exist, acquiring the historical sensor operation data of the working condition similar to the current working condition in the air conditioning unit as the third sensor historical data.
After determining the historical data of the sensor, judging whether the data of the sensor is abnormal according to the historical operating data of the sensor, comprising the following steps: when the historical sensor operating data is first historical sensor operating data, judging whether the difference value between the first historical sensor operating data and the current operating data is smaller than or equal to a first preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; when the historical sensor operating data is second historical sensor operating data, judging whether the difference value between the second historical sensor operating data and the current operating data is smaller than or equal to a second preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the second preset difference is greater than the first preset difference; when the historical sensor operating data is third sensor historical data, judging whether the difference value between the third sensor historical data and the current operating data is smaller than or equal to a third preset difference value; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the third preset difference is greater than the first preset difference.
Acquiring historical operating parameters of an air conditioner group, comprising the following steps: detecting whether the air conditioning unit has historical operating parameters under the same working condition as the current working condition; if so, taking the historical operation parameters of the same working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group; otherwise, detecting whether the similar air conditioning units exist or not; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has historical operation parameters under the same working condition as the current working condition, and if so, taking the historical operation parameters under the same working condition as the current working condition in the similar air conditioning unit as the historical operation parameters of the air conditioning group; and if the same type of air conditioning unit does not exist or the same type of air conditioning unit does not have historical operation parameters of the same working condition as the current working condition, acquiring the historical operation parameters of the similar working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group.
After the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group, the method further comprises the following steps: detecting whether data of a sensor which does not have a fault is normal; if the operation is normal, the operation of the air conditioning unit is continuously controlled according to the historical operation parameters of the air conditioning group; otherwise, stopping the machine and carrying out fault prompt.
Detecting whether data of a sensor which does not have a fault is normal or not, comprising the following steps: judging whether the data of the sensor without the fault is in a preset range or whether the variation trend of the data of the sensor without the fault is consistent with the preset trend; if so, determining that the data of the sensor without the fault is normal; otherwise, determining that the data of the sensor which does not have the fault is abnormal.
In a preferred embodiment 1 of the present invention, another air conditioning unit control method is further provided, specifically, for a sensor fault in a multi-split air-conditioning system, taking an inlet/outlet pipe bulb fault as an example, first, the unit needs to identify data collected by a bulb, and determine whether the data collected by the bulb is normal, and a short circuit fault and an open circuit fault of the bulb can be determined by detecting that the data is equal to a certain specific value, where the temperature drift fault determination method is shown in fig. 2, and the method includes the following steps S201 to S220:
s201: the unit operates; firstly, calling historical running data of a local machine by a cloud end, and finding corresponding historical data according to indoor and outdoor environment temperature, the number of started indoor machines, set temperature and the like;
s202: the sensor collects corresponding data;
s203: whether the cloud of the machine has data of the same working condition or not; if yes, go to step S204, otherwise, go to step S205;
s204: delta T1 is less than or equal to alpha; after the unit stably operates, comparing historical data with current operation data, and if the difference value delta T1 between the historical data and the current operation data is within a threshold value alpha, judging that the temperature sensing bulb data is normal; when normal, go to step S211, otherwise, go to step S214;
s205: whether data of the same working condition exist in the cloud end of the nearby unit or not; if yes, go to step S206, otherwise, go to step S207; if the historical data of the same working condition cannot be found, calling the historical data of the similar unit in a certain nearby area, and comparing the historical data of the similar unit with the current operation data;
s206: delta T2 is less than or equal to beta; comparing historical data and current operation data of the same type of unit, and if the difference value delta T2 between the historical data and the current operation data is within a threshold value beta, wherein beta is larger than alpha, judging that the temperature sensing bulb data is normal; when normal, go to step S211, otherwise, go to step S214;
s207: whether the cloud end of the machine has data of similar working conditions or not; if yes, go to step S208, otherwise, go to step S209; if no similar unit exists in the adjacent area, historical data closest to the current working condition is taken, and the historical data and the current operation data are compared;
s208: delta T3 is less than or equal to gamma; comparing the historical data with the current operation data, and if the difference value delta T3 between the historical data and the current operation data is within a threshold value gamma (the gamma value is related to the frequency of the compressor and the opening of the electronic expansion valve), wherein gamma is larger than alpha, judging that the temperature sensing bulb data is normal; when normal, go to step S211, otherwise, go to step S214;
s209: stopping the machine and giving a fault code; if the data of the similar working conditions do not exist, stopping the machine;
s210: finishing;
s211: calling time sequence data such as the frequency of a press, the frequency of a fan, the EXV opening and the like under the working condition; when the fact that the unit inlet/outlet pipe temperature sensing bulb is in fault is recognized, historical data corresponding to working conditions are found, and operation is maintained according to the time sequence identical to the historical data by calling the change time sequence of system data such as compressor frequency, fan frequency and opening degree of an electronic expansion valve. If the historical data corresponding to the working conditions cannot be found, the operation parameters of the similar units in the area are received, and the average parameters of all the units in the same working conditions in the same area are used as the basis for control. If no similar unit exists in the adjacent area, historical data closest to the current working condition is taken for control;
s212: the unit operates according to historical parameters;
s213: finishing;
s214: a sensor exceeding a threshold fails;
s215: the unit operates according to historical parameters;
s216: is the trend of the rest thermal bulbs in a reasonable range? If yes, go to step S217, otherwise, go to step S218;
s217: continuing to operate according to the control;
s218: finishing;
s219: stopping the machine and giving a fault code; the control mode needs to detect data of other normal temperature sensing bags, and if the change trend of the data of the other temperature sensing bags is consistent with the historical data or fluctuates in a reasonable range, the control is reasonable. Then the system automatically sends information to the cloud end to inform the after-sales personnel to arrange the personnel for processing in time. If other parameters are not in a reasonable range, the operation frequency of the compressor is limited, and the condition that the output of the compressor is unreasonable, so that the unit operates for a long time under the condition of overhigh exhaust temperature or overhigh high pressure to cause other faults is prevented;
s220: and (6) ending.
According to the control scheme, after the temperature sensing bulb of the unit breaks down, the normal operation of the unit can be guaranteed before the fault is eliminated, the unit can automatically diagnose the fault of the sensor and report the fault to the cloud, after-sales personnel can go to the door for maintenance in advance before the user perceives the fault, and the user experience can be effectively improved.
Example 2
Based on the air conditioning unit control method provided in the above embodiment 1, there is also provided an air conditioning unit control device in a preferred embodiment 2 of the present invention, specifically, fig. 3 shows an alternative structural block diagram of the device, and as shown in fig. 3, the device includes:
a first obtaining module 302, configured to obtain current operation data detected by a sensor of an air conditioning unit;
a judging module 304, connected to the first obtaining module 302, for judging whether the sensor is faulty according to the current operation data;
the second obtaining module 306 is connected to the judging module 304, and is configured to obtain historical operating parameters of the air conditioner group when the sensor fails; the air conditioning group at least comprises an air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
and the control module 308 is connected to the second obtaining module 306, and is configured to control the operation of the air conditioning unit according to the historical operating parameters of the air conditioning group.
In the above embodiment, an operation control scheme of the unit when the sensor fails is provided, where after the sensor such as a thermal bulb of the unit fails, historical operation parameters of the air conditioning group are obtained, and the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group. Therefore, the problem that the air conditioning unit can not normally operate after the sensor fails and user experience is affected in the prior art can be effectively solved, normal operation of the unit can be guaranteed before troubleshooting, and user experience is improved.
The determining module 304 includes: the first judging unit is used for judging whether the sensor is short-circuited or open-circuited according to the current operation data; the second judgment unit is used for acquiring the historical operation data of the sensors of the air conditioner group if the sensors are not short-circuited or disconnected, and judging whether the data of the sensors are abnormal or not according to the historical operation data of the sensors; and the determining unit is used for determining the sensor fault when the sensor is short-circuited or broken or the sensor data is abnormal.
The judging unit includes: judging whether the current operation data is short circuit data or open circuit data; the short circuit data is data generated when the sensor is in short circuit, and the open circuit data is data generated when the sensor is in open circuit; if so, it is determined that the sensor is shorted or open.
The first judgment unit includes: the first detection subunit is used for detecting whether the air conditioning unit has historical sensor operation data under the same working condition as the current working condition; if so, taking historical sensor operation data of the same working condition as the current working condition in the air conditioning unit as historical first sensor data; the second detection subunit is used for detecting whether the similar air conditioning unit exists or not if the similar air conditioning unit does not exist; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has the historical sensor operation data under the same working condition as the current working condition, and if so, taking the historical sensor operation data under the same working condition as the current working condition in the similar air conditioning unit as the historical second sensor operation data; and the third detection subunit is used for acquiring the historical sensor operation data of the working condition similar to the current working condition in the air conditioning unit as the historical data of the third sensor if the similar air conditioning unit does not exist or the second sensor historical data does not exist.
The second judgment unit includes: the first judging subunit is used for judging whether the difference value between the historical data of the first sensor and the current operation data is less than or equal to a first preset difference value or not when the historical operation data of the sensor is the historical data of the first sensor after the historical data of the sensor is determined; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; the second judging subunit is used for judging whether the difference value between the second sensor historical data and the current operation data is less than or equal to a second preset difference value or not when the sensor historical operation data is the second sensor historical data; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the second preset difference is greater than the first preset difference; the third judging subunit is used for judging whether the difference value between the historical sensor data and the current operation data is less than or equal to a third preset difference value or not when the historical sensor operation data is the third historical sensor data; if so, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the third preset difference is greater than the first preset difference.
The second obtaining module 306 includes: the first acquisition unit is used for detecting whether the air conditioning unit has historical operating parameters under the same working condition as the current working condition; if so, taking the historical operation parameters of the same working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group; the second acquisition unit is used for detecting whether the similar air conditioning units exist or not if the similar air conditioning units do not exist; if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has historical operation parameters under the same working condition as the current working condition, and if so, taking the historical operation parameters under the same working condition as the current working condition in the similar air conditioning unit as the historical operation parameters of the air conditioning group; and the third obtaining unit is used for obtaining the historical operating parameters of the working conditions similar to the current working conditions in the air conditioning unit as the historical operating parameters of the air conditioning group if the similar air conditioning unit does not exist or the similar air conditioning unit does not exist the historical operating parameters of the working conditions same as the current working conditions.
This device still includes: the detection module is used for detecting whether the data of the sensor which does not have faults are normal or not after the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group; the continuous control module is used for continuously controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group if the operation is normal; and the fault prompting module is used for stopping the machine and performing fault prompting if the fault is not detected.
The detection module includes: the judging submodule is used for judging whether the data of the sensor which does not have faults are in a preset range or whether the variation trend of the data of the sensor which does not have faults is consistent with the preset trend; the determining submodule is used for determining that the data of the sensor which does not have the fault is normal if the data of the sensor which does not have the fault is normal; otherwise, determining that the data of the sensor which does not have the fault is abnormal.
With regard to the apparatus in the above embodiments, the specific manner in which each unit and each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Example 3
Based on the air conditioning unit control device provided in the above embodiment 2, there is also provided in a preferred embodiment 3 of the present invention an air conditioning unit including the air conditioning unit control device as described above.
In the above embodiment, an operation control scheme of the unit when the sensor fails is provided, where after the sensor such as a thermal bulb of the unit fails, historical operation parameters of the air conditioning group are obtained, and the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group. Therefore, the problem that the air conditioning unit can not normally operate after the sensor fails and user experience is affected in the prior art can be effectively solved, normal operation of the unit can be guaranteed before troubleshooting, and user experience is improved.
Example 4
Based on the air conditioning unit control method provided in embodiment 1 above, there is also provided in a preferred embodiment 4 of the present invention a storage medium containing computer-executable instructions for performing the air conditioning unit control method as described above when executed by a computer processor.
In the above embodiment, an operation control scheme of the unit when the sensor fails is provided, where after the sensor such as a thermal bulb of the unit fails, historical operation parameters of the air conditioning group are obtained, and the operation of the air conditioning unit is controlled according to the historical operation parameters of the air conditioning group. Therefore, the problem that the air conditioning unit can not normally operate after the sensor fails and user experience is affected in the prior art can be effectively solved, normal operation of the unit can be guaranteed before troubleshooting, and user experience is improved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (11)
1. An air conditioning unit control method is characterized by comprising the following steps:
acquiring current operation data detected by a sensor of an air conditioning unit;
judging whether the sensor fails according to the current operation data;
when the sensor fails, acquiring historical operating parameters of the air conditioner group; the air conditioning group at least comprises the air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
and controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group.
2. The method of claim 1, wherein determining whether the sensor is malfunctioning based on the current operational data comprises:
judging whether the sensor is short-circuited or open-circuited according to the current operation data;
if the sensor is not short-circuited or open-circuited, obtaining historical sensor operation data of the air conditioner group, and judging whether the sensor is abnormal according to the historical sensor operation data;
and when the sensor is short-circuited or broken, or the sensor data is abnormal, determining the sensor fault.
3. The method of claim 2, wherein determining whether the sensor is shorted or open based on the current operating data comprises:
judging whether the current operation data is short circuit data or open circuit data; the short circuit data is data generated when the sensor is in a short circuit state, and the open circuit data is data generated when the sensor is in an open circuit state;
if so, it is determined that the sensor is shorted or open.
4. The method of claim 2, wherein obtaining historical sensor operating data for the air conditioning group comprises:
detecting whether the air conditioning unit has sensor historical operation data under the same working condition as the current working condition;
if so, taking historical sensor operation data of the same working condition as the current working condition in the air conditioning unit as historical first sensor data;
otherwise, detecting whether the similar air conditioning unit exists or not;
if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has sensor historical operation data under the same working condition as the current working condition, and if so, taking the sensor historical operation data under the same working condition as the current working condition in the similar air conditioning unit as second sensor historical data;
and if the same type of air conditioning unit does not exist or the second sensor historical data does not exist, acquiring the historical sensor operation data of the air conditioning unit under the working condition similar to the current working condition, and using the historical sensor operation data as third sensor historical data.
5. The method of claim 4, wherein determining whether the sensor is anomalous based on historical sensor operating data comprises:
when the historical sensor operating data is the first historical sensor operating data, judging whether the difference value between the first historical sensor operating data and the current operating data is less than or equal to a first preset difference value; if yes, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal;
when the historical sensor operating data is the second historical sensor operating data, judging whether the difference value between the second historical sensor operating data and the current operating data is less than or equal to a second preset difference value; if yes, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the second preset difference is greater than the first preset difference;
when the historical sensor operating data is the third historical sensor operating data, judging whether the difference value between the third historical sensor operating data and the current operating data is less than or equal to a third preset difference value; if yes, determining that the sensor is normal, otherwise, determining that the sensor data is abnormal; wherein the third preset difference is greater than the first preset difference.
6. The method of claim 1, wherein obtaining historical operating parameters of a group of air conditioners comprises:
detecting whether the air conditioning unit has historical operating parameters under the same working condition as the current working condition;
if so, taking the historical operation parameters of the same working condition as the current working condition in the air conditioning unit as the historical operation parameters of the air conditioning group;
otherwise, detecting whether the similar air conditioning unit exists or not;
if the similar air conditioning unit exists, detecting whether the similar air conditioning unit has historical operating parameters under the same working condition as the current working condition, and if so, taking the historical operating parameters under the same working condition as the current working condition in the similar air conditioning unit as the historical operating parameters of the air conditioning group;
if the same type of air conditioning unit does not exist or the same type of air conditioning unit does not have the historical operating parameters of the working condition the same as the current working condition, the historical operating parameters of the working condition similar to the current working condition in the air conditioning unit are obtained and used as the historical operating parameters of the air conditioning group.
7. The method of claim 1, after controlling the operation of the air conditioning packs according to the historical operating parameters of the air conditioning groups, further comprising:
detecting whether data of a sensor which does not have a fault is normal;
if the operation is normal, continuing to control the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group;
otherwise, stopping the machine and carrying out fault prompt.
8. The method of claim 7, wherein detecting whether data from an uncorrupted sensor is normal comprises:
judging whether the data of the sensor which does not have the fault is in a preset range or whether the change trend of the data of the sensor which does not have the fault is consistent with a preset trend;
if so, determining that the data of the sensor which does not have the fault is normal;
otherwise, determining that the data of the sensor which does not have the fault is abnormal.
9. An air conditioning unit control apparatus characterized by comprising:
the first acquisition module is used for acquiring current operation data detected by a sensor of the air conditioning unit;
the judging module is used for judging whether the sensor fails according to the current operation data;
the second acquisition module is used for acquiring historical operating parameters of the air conditioner group when the sensor fails; the air conditioning group at least comprises the air conditioning unit or a similar air conditioning unit which is away from the air conditioning unit by a preset distance;
and the control module is used for controlling the operation of the air conditioning unit according to the historical operation parameters of the air conditioning group.
10. An air conditioning unit characterized by comprising the air conditioning unit control device according to claim 9.
11. A storage medium containing computer-executable instructions for performing the air conditioning pack control method of any of claims 1 to 8 when executed by a computer processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250503.0A CN113865001A (en) | 2021-10-26 | 2021-10-26 | Air conditioning unit control method and device and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250503.0A CN113865001A (en) | 2021-10-26 | 2021-10-26 | Air conditioning unit control method and device and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113865001A true CN113865001A (en) | 2021-12-31 |
Family
ID=78998193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111250503.0A Pending CN113865001A (en) | 2021-10-26 | 2021-10-26 | Air conditioning unit control method and device and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113865001A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264756A (en) * | 2022-07-13 | 2022-11-01 | 青岛海信日立空调系统有限公司 | Emergency processing method and device for air conditioning system |
| CN115614965A (en) * | 2022-09-22 | 2023-01-17 | 珠海格力电器股份有限公司 | Control method and device for fresh air of air conditioner |
| CN115773572A (en) * | 2022-11-23 | 2023-03-10 | 青岛海尔空调电子有限公司 | Multi-split air conditioner and control method and device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504180A (en) * | 2009-02-27 | 2009-08-12 | 海信（山东）空调有限公司 | Substitution control method for fault air suction sensor in air conditioner and air conditioner thereof |
| JP2016133279A (en) * | 2015-01-21 | 2016-07-25 | アズビル株式会社 | Steam valve diagnosis device and method |
| CN107490129A (en) * | 2017-08-02 | 2017-12-19 | 青岛海尔空调电子有限公司 | A kind of method and device of equipment control |
| CN109507602A (en) * | 2018-11-27 | 2019-03-22 | 珠海格力电器股份有限公司 | Battery pack voltage sampling circuit, method and system |
| WO2019116885A1 (en) * | 2017-12-13 | 2019-06-20 | ダイキン工業株式会社 | Air-conditioning system, remote control device, and method for saving operation data history of air conditioner |
| CN110107993A (en) * | 2019-05-05 | 2019-08-09 | 珠海格力电器股份有限公司 | Method and device for guaranteeing normal operation of unit after pressure abnormality |
-
2021
- 2021-10-26 CN CN202111250503.0A patent/CN113865001A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504180A (en) * | 2009-02-27 | 2009-08-12 | 海信（山东）空调有限公司 | Substitution control method for fault air suction sensor in air conditioner and air conditioner thereof |
| JP2016133279A (en) * | 2015-01-21 | 2016-07-25 | アズビル株式会社 | Steam valve diagnosis device and method |
| CN107490129A (en) * | 2017-08-02 | 2017-12-19 | 青岛海尔空调电子有限公司 | A kind of method and device of equipment control |
| WO2019116885A1 (en) * | 2017-12-13 | 2019-06-20 | ダイキン工業株式会社 | Air-conditioning system, remote control device, and method for saving operation data history of air conditioner |
| CN109507602A (en) * | 2018-11-27 | 2019-03-22 | 珠海格力电器股份有限公司 | Battery pack voltage sampling circuit, method and system |
| CN110107993A (en) * | 2019-05-05 | 2019-08-09 | 珠海格力电器股份有限公司 | Method and device for guaranteeing normal operation of unit after pressure abnormality |
Non-Patent Citations (1)
| Title |
|---|
| 唐立娜: "《公共建筑运行能耗监测控制共性技术研究与示范》", 31 July 2016 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264756A (en) * | 2022-07-13 | 2022-11-01 | 青岛海信日立空调系统有限公司 | Emergency processing method and device for air conditioning system |
| CN115264756B (en) * | 2022-07-13 | 2023-08-01 | 青岛海信日立空调系统有限公司 | Emergency treatment method and device for air conditioning system |
| CN115614965A (en) * | 2022-09-22 | 2023-01-17 | 珠海格力电器股份有限公司 | Control method and device for fresh air of air conditioner |
| CN115773572A (en) * | 2022-11-23 | 2023-03-10 | 青岛海尔空调电子有限公司 | Multi-split air conditioner and control method and device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113865001A (en) | Air conditioning unit control method and device and air conditioning unit | |
| CN107166638B (en) | Fault detection method and device of temperature sensor and multi-connected air conditioning system | |
| KR100805471B1 (en) | Failure mode for hvac system | |
| CN106247530B (en) | More air-conditioning self checking methods are dragged in multitube frequency conversion one | |
| CN104633864A (en) | Refrigerant leakage detection method and device for air conditioner and air conditioner outdoor unit | |
| CN111272454B (en) | Abnormality diagnosis device and abnormality diagnosis method | |
| CN105605739A (en) | Air conditioning system and monitoring method and device of refrigerant leakage of air conditioning system | |
| CN111706959B (en) | Electronic expansion valve fault detection method and device for multi-split air conditioner and air conditioner | |
| CN111322720B (en) | Air conditioner exhaust fault detection method and device and air conditioner | |
| CN110006150B (en) | Method and device for detecting fault of outdoor fan of air conditioner and air conditioner | |
| CN110094843B (en) | Method and device for controlling air conditioner based on refrigerant shortage grade | |
| CN109282423B (en) | Method for detecting communication connection error of heat recovery multi-split air conditioning system and heat recovery multi-split air conditioning system | |
| CN113091204B (en) | Method and device for controlling air conditioner and air conditioner | |
| EP3795915B1 (en) | Malfunction diagnosis system | |
| US20090120111A1 (en) | Remote Diagnostics and Prognostics for Refrigerant Systems | |
| CN112393377A (en) | Fault judgment method and air conditioner | |
| CN104729151A (en) | Method and system for processing fault of compressor oil return pipeline of air conditioning system | |
| CN111692703B (en) | Fault detection method for air conditioning system | |
| JP3976320B2 (en) | Air conditioner failure diagnosis device | |
| CN117091264A (en) | Abnormality detection and control method and device for air conditioner, air conditioner and storage medium | |
| WO2024021430A1 (en) | Method and apparatus for diagnosing air conditioner one-way valve failure, air conditioner, and storage medium | |
| US7342756B2 (en) | Fault recognition in systems with multiple circuits | |
| CN115523609A (en) | Method and device for detecting refrigerant abnormity, air conditioner and storage medium | |
| Laughman | Fault detection methods for vapor-compression air conditioners using electrical measurements | |
| JP2006118765A (en) | Air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |
|
| RJ01 | Rejection of invention patent application after publication |