CN109654662B - Detection element control method and device and air conditioning unit - Google Patents
Detection element control method and device and air conditioning unit Download PDFInfo
- Publication number
- CN109654662B CN109654662B CN201811296688.7A CN201811296688A CN109654662B CN 109654662 B CN109654662 B CN 109654662B CN 201811296688 A CN201811296688 A CN 201811296688A CN 109654662 B CN109654662 B CN 109654662B
- Authority
- CN
- China
- Prior art keywords
- detection element
- parameter value
- detection
- value
- difference
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 233
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 60
- 230000005856 abnormality Effects 0.000 claims description 51
- 239000003507 refrigerant Substances 0.000 claims description 17
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 abstract description 7
- 238000004092 self-diagnosis Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010977 unit operation Methods 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a detection element control method, a detection element control device and an air conditioning unit, wherein the method comprises the following steps: acquiring a first parameter value detected by a first detection element and a second parameter value detected by a second detection element; judging whether the first detection element and/or the second detection element detects abnormity or not according to the first parameter value and the second parameter value; and when the first detection element and/or the second detection element are judged to be abnormal, correcting the parameter value of the detection element with the abnormal detection, and sending the corrected parameter value to the main control unit so as to participate in the control of the unit. The invention solves the problem that the fault detection of the detection element is not timely enough in the prior art, and improves the automation degree and accuracy of the fault diagnosis of the detection element.
Description
Technical Field
The invention relates to the technical field of detection elements, in particular to a detection element control method and device and an air conditioning unit.
Background
The existing outdoor unit and indoor unit of air conditioner have multiple components (such as pressure sensor and temperature sensor) to detect the parameters of the system, and the main purpose of the system is to ensure the stable and effective control of the system. However, due to the influence of external factors and the reduction of fatigue resistance of the sensor during use, the detection value of the sensor often has certain deviation during use. In the prior art, the effectiveness of the sensor is generally detected in an external or artificial detection mode, but the detection mode is usually found after a fault occurs, and the deviation cannot be detected in time, so that the system control is abnormal, and the service life of a unit is influenced in serious cases.
In order to solve the problem that the detection of the fault of the detection element in the related art is not timely enough, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a detection element control method and device and an air conditioning unit, and at least solves the problem that the fault detection of a detection element in the prior art is not timely enough.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a detection element control method including: acquiring a first parameter value detected by a first detection element and a second parameter value detected by a second detection element; judging whether the first detection element and/or the second detection element detects abnormity or not according to the first parameter value and the second parameter value; and when the first detection element and/or the second detection element are judged to be abnormal, correcting the parameter value of the detection element with the abnormal detection, and sending the corrected parameter value to the main control unit so as to participate in the control of the unit.
Further, the first detecting element and the second detecting element detect the same parameter, or parameters of different positions of the same component.
Further, judging whether the first detection element and/or the second detection element detects abnormality according to the first parameter value and the second parameter value includes: calculating a difference between the first parameter value and the second parameter value; and judging whether the first detection element and/or the second detection element detect the abnormality or not according to the difference.
Further, calculating a difference between the first parameter value and the second parameter value when the first detecting element and the second detecting element detect the same parameter includes: calculating the difference between the first parameter value a and the second parameter value b: a-b and b-a.
Further, judging whether the first detection element and/or the second detection element detects abnormality according to the difference includes: judging whether the a-b and the b-a are positioned in a first preset abnormal range or not; when a-b is within a first preset abnormal range, determining that a second detection element detects abnormality; and when the b-a is positioned in a first preset abnormal range, determining that the first detection element detects the abnormality.
Further, correcting the parameter value of the detection element that detects the abnormality includes: when the first detection element detects abnormality, correcting the first parameter value into a second parameter value; when the second detection element detects an abnormality, the second parameter value is corrected to the first parameter value.
Further, when the first detection element and the second detection element detect parameters of different positions of the same component, the same component is an evaporator or a condenser; the different positions are a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the first detection element is positioned at the refrigerant inlet pipe, and the second detection element is positioned at the refrigerant outlet pipe.
Further, when the same component is an evaporator, calculating a difference between the first parameter value and the second parameter value includes: calculating the difference between the first parameter value a and the second parameter value b: b-a; judging whether the first detection element and/or the second detection element detects abnormality according to the difference value includes: judging whether the b-a is located in a second preset abnormal range; and when the b-a is positioned in a second preset abnormal range, determining that the first detection element and the second detection element detect the abnormality.
Further, calculating a difference between the first parameter value and the second parameter value when the same component is a condenser, comprises: calculating the difference between the first parameter value a and the second parameter value b: a-b; judging whether the first detection element and/or the second detection element detects abnormality according to the difference value includes: judging whether the a-b is located in a second preset abnormal range or not; and when the a-b is positioned in a second preset abnormity range, determining that the first detection element and the second detection element detect abnormity.
Further, correcting the parameter value of the detection element that detects the abnormality includes: correcting the first parameter value into a second parameter value; and modifying the second parameter value to the first parameter value.
Further, after sending the corrected parameter value to the master, the method further includes: and reporting the detection element with the abnormal detection to the main control.
According to another aspect of the embodiments of the present invention, there is provided a detection element control apparatus including: the acquisition module is used for acquiring a first parameter value detected by the first detection element and a second parameter value detected by the second detection element; the judging module is used for judging whether the first detection element and/or the second detection element detect abnormity according to the first parameter value and the second parameter value; and the control module is used for correcting the parameter value of the detection element with the abnormal detection when the first detection element and/or the second detection element is judged to be abnormal, and sending the corrected parameter value to the main control so as to participate in the control of the unit.
According to another aspect of the embodiments of the present invention, there is provided an air conditioning unit including a first detection element and a second detection element, the air conditioning unit being capable of implementing the detection element control method as described above.
According to a further aspect of the embodiments of the present invention, there is provided a computer device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the detecting element controlling method as described above when executing the program.
According to a further aspect of embodiments of the present invention, there is provided a storage medium containing computer-executable instructions for performing the detection element control method as described above when executed by a computer processor.
The invention provides a control scheme for detecting element self-diagnosis, which can be used for detecting the problem that the fault detection of the element is not timely enough, mutually diagnosing whether the element is abnormal or not by collecting and analyzing the normal operation parameters of the unit, realizing the accurate analysis of the fault reason of the unit in a self-adaptive mode under the abnormal condition, ensuring the stable operation of the unit, helping to solve the problem after sale in time, effectively solving the problem that the fault detection of the element is not timely enough in the prior art, and improving the automation degree and the accuracy of the fault diagnosis of the element and the stability of the unit.
Drawings
FIG. 1 is an alternative flow chart of a sensing element control method according to an embodiment of the present invention;
FIG. 2 is an alternative flow chart of a first embodiment of a method for controlling a sensing element according to an embodiment of the present invention;
FIG. 3 is an alternative flow chart of a second embodiment of a method for controlling a sensing element according to an embodiment of the present invention; and
fig. 4 is an alternative structural block diagram of the detecting element controlling apparatus according to the 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 invention, as detailed in the appended claims.
Example 1
In preferred embodiment 1 of the present invention, a method for controlling a detection element is provided, where the method may be directly applied to various units, especially to an air conditioning unit, or may be applied to other devices having partial functions of the air conditioning unit, and when the method is specifically implemented, the method may be implemented by installing software, APP, or writing a corresponding program in a controller in the unit or other devices. In particular, fig. 1 shows an alternative flow chart of the method, which, as shown in fig. 1, comprises the following steps S102-S106:
s102: acquiring a first parameter value detected by a first detection element and a second parameter value detected by a second detection element;
s104: judging whether the first detection element and/or the second detection element detects abnormity or not according to the first parameter value and the second parameter value;
s106: and when the first detection element and/or the second detection element are judged to be abnormal, correcting the parameter value of the detection element with the abnormal detection, and sending the corrected parameter value to the main control unit so as to participate in the control of the unit.
Since it is determined by the present application that the first detection element and/or the second detection element detect an abnormality, the detection element that detects an abnormality includes the following cases: a first detection element; a second detection element; a first detection element and a second detection element. When the first detection element detects abnormality, correcting the parameter value of the first detection element; when the second detection element detects abnormality, correcting the parameter value of the second detection element; when the first and second detecting elements detect an abnormality, the parameter values of the first and second detecting elements are corrected.
After sending the corrected parameter value to the master control, the method further includes: and reporting the detection element with the abnormal detection to the main control.
In the above embodiment, a control scheme for detecting element self-diagnosis is provided, and a problem that fault detection of a detecting element is not timely enough is provided, and normal operation parameters of a unit are collected and analyzed to mutually diagnose whether the detecting element is abnormal, and under an abnormal condition, accurate analysis of a fault reason of the unit can be realized in a self-adaptive manner, so that stable operation of the unit is ensured, and after-sale timely problem solving is facilitated, so that a problem that fault detection of the detecting element in the prior art is not timely enough is effectively solved, and the automation degree and accuracy of fault diagnosis of the detecting element and the stability of the unit are improved.
In a preferred embodiment of the invention, the first detection element and the second detection element detect the same parameter, or parameters at different positions of the same component. Judging whether the first detection element and/or the second detection element detects the abnormality according to the first parameter value and the second parameter value, comprising: calculating a difference between the first parameter value and the second parameter value; and judging whether the first detection element and/or the second detection element detect the abnormality or not according to the difference.
The first implementation mode comprises the following steps:
calculating a difference between the first parameter value and the second parameter value when the first sensing element and the second sensing element sense the same parameter, comprising: calculating the difference between the first parameter value a and the second parameter value b: a-b and b-a. Further, judging whether the first detection element and/or the second detection element detects abnormality according to the difference includes: judging whether the a-b and the b-a are positioned in a first preset abnormal range or not; when a-b is within a first preset abnormal range, determining that a second detection element detects abnormality; and when the b-a is positioned in a first preset abnormal range, determining that the first detection element detects the abnormality. The sensor has a detection range when leaving the factory, and sensor trouble all can appear when surpassing this scope, leads to the unit unable operation. The detected values of the normal range and the abnormal range generate a data table, wherein the m and n values are the maximum value and the minimum value of the data table, and the temperature sensing bulb is proved to have problems in the interval.
Wherein correcting the parameter value of the detection element that detects the abnormality includes: when the first detection element detects abnormality, correcting the first parameter value into a second parameter value; when the second detection element detects an abnormality, the second parameter value is corrected to the first parameter value.
The sensor a and the sensor b detect the temperature of different positions of the same component (such as the exhaust temperature of the compressor and the top temperature of the shell), and the detection values of the two sensors are generally the same. In an extreme case, if the value of the sensor a is detected abnormally, the unit cannot be started normally, at the moment, the value of the sensor b can be used for replacing the value of the sensor a at the same time, and the unit is assisted to operate in an emergency state.
The first embodiment is described in detail below with reference to fig. 2 as an example, as shown in fig. 2:
when the unit normally operates, the sensor a and the sensor b send the parameter values detected in real time to the microprocessor in the time variable T, and the microprocessor detects and judges the parameter values of the sensor a and the sensor b in real time in the time variable T. If n is more than b-a and less than m, the detection value of the sensor a is corrected into the detection value of the sensor b, the microprocessor sends the corrected detection value of the sensor a and the detection value of the sensor b to the main control to participate in the control of components such as a compressor, a fan, an electromagnetic valve, an electronic expansion valve and the like of the unit, and the main control synchronously reports the fault information of the abnormal detection value of the sensor a.
When the unit normally operates, the sensor a and the sensor b send the parameter values detected in real time to the microprocessor in the time variable T, and the microprocessor detects and judges the parameter values of the sensor a and the sensor b in real time in the time variable T. If n is more than a and b is more than m, the detection value of the sensor b is corrected into the detection value of the sensor a, the microprocessor sends the corrected detection value of the sensor a and the detection value of the sensor b to the main control to participate in the control of components such as a compressor, a fan, an electromagnetic valve, an electronic expansion valve and the like of the unit, and the main control synchronously reports the fault information of the abnormal detection value of the sensor b.
The second embodiment:
when the first detection element and the second detection element detect parameters of different positions of the same component, the same component is an evaporator or a condenser; the different positions are a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the first detection element is positioned at the refrigerant inlet pipe, and the second detection element is positioned at the refrigerant outlet pipe.
Further, when the same component is an evaporator, calculating a difference between the first parameter value and the second parameter value includes: calculating the difference between the first parameter value a and the second parameter value b: b-a; judging whether the first detection element and/or the second detection element detects abnormality according to the difference value includes: judging whether the b-a is located in a second preset abnormal range; and when the b-a is positioned in a second preset abnormal range, determining that the first detection element and the second detection element detect the abnormality.
Further, calculating a difference between the first parameter value and the second parameter value when the same component is a condenser, comprises: calculating the difference between the first parameter value a and the second parameter value b: a-b; judging whether the first detection element and/or the second detection element detects abnormality according to the difference value includes: judging whether the a-b is located in a second preset abnormal range or not; and when the a-b is positioned in a second preset abnormity range, determining that the first detection element and the second detection element detect abnormity.
Wherein correcting the parameter value of the detection element that detects the abnormality includes: correcting the first parameter value into a second parameter value; and modifying the second parameter value to the first parameter value.
The second embodiment is described in detail below with reference to fig. 3 as an example, as shown in fig. 3:
when the unit normally operates, in a time variable T, a sensor a (detects the temperature of an inlet pipe of a heat exchanger) and a sensor b (detects the temperature of an outlet pipe of the heat exchanger) (the temperature of the inlet pipe is defined as the detection value of the sensor a and the temperature of the outlet pipe is defined as the detection value of the sensor b during refrigeration; the temperature of the inlet pipe and the outlet pipe is based on the flowing direction of a refrigerant during refrigeration ] the parameter values detected in real time are sent to the microprocessor, meanwhile, the main control sends the unit operation mode to the microprocessor, and the microprocessor detects and judges the logical relation between the sensor a and the sensor b in real time in a time variable T. When the same component is an evaporator, the outlet pipe temperature is necessarily greater than the inlet pipe temperature, and if the opposite is true, the temperature sensing bulb is definitely indicated. If b-a is less than 0, the two sensors are connected reversely, the detection value of the sensor a is corrected to be the detection value of the sensor b, the detection value of the sensor b is corrected to be the detection value of the sensor a (namely, the values of a and b are mutually exchanged), the microprocessor sends the corrected detection value of the sensor a and the detection value of the sensor b to the main control to participate in the control of components such as a compressor, a fan, an electromagnetic valve, an electronic expansion valve and the like of the unit, and the main control synchronously reports fault information with the opposite detection values of the sensor a and the sensor b. The same applies when the same component is a condenser.
Example 2
Based on the method for controlling the detecting element provided in the above embodiment 1, in a preferred embodiment 2 of the present invention, there is further provided a detecting element control apparatus, and specifically, fig. 4 shows an alternative structural block diagram of the apparatus, as shown in fig. 4, the apparatus includes:
an obtaining module 402, configured to obtain a first parameter value detected by a first detecting element and a second parameter value detected by a second detecting element;
a determining module 404, connected to the obtaining module 402, configured to determine whether the first detecting element and/or the second detecting element detect an abnormality according to the first parameter value and the second parameter value;
and the control module 406 is connected to the judging module 404, and is configured to, when it is determined that the first detection element and/or the second detection element are/is abnormal, correct a parameter value of the detection element that is abnormal, and send the corrected parameter value to the main controller, so as to participate in the control of the unit.
In the above embodiment, a control scheme for detecting element self-diagnosis is provided, and a problem that fault detection of a detecting element is not timely enough is provided, and normal operation parameters of a unit are collected and analyzed to mutually diagnose whether the detecting element is abnormal, and under an abnormal condition, accurate analysis of a fault reason of the unit can be realized in a self-adaptive manner, so that stable operation of the unit is ensured, and after-sale timely problem solving is facilitated, so that a problem that fault detection of the detecting element in the prior art is not timely enough is effectively solved, and the automation degree and accuracy of fault diagnosis of the detecting element and the stability of the unit are improved.
The first detection element and the second detection element are used for detecting the same parameter or parameters of different positions of the same component.
Further, the determining module 404 includes: a calculation unit for calculating a difference between the first parameter value and the second parameter value; and the judging unit is used for judging whether the first detection element and/or the second detection element detect the abnormity or not according to the difference value.
In a preferred embodiment of the present invention, when the first detection element and the second detection element detect the same parameter, the calculation unit includes: a first calculating subunit, configured to calculate a difference between the first parameter value a and the second parameter value b: a-b and b-a. The judging unit includes: the first judgment subunit is used for judging whether the a-b and the b-a are positioned in a first preset abnormal range or not; the first determining subunit is used for determining that the second detection element detects the abnormity when the a-b is positioned in a first preset abnormity range; and the second determining subunit is used for determining that the first detection element detects the abnormality when the b-a is positioned in the first preset abnormality range.
Further, the control module 406 includes: a first correcting unit for correcting the first parameter value to a second parameter value when the first detecting element detects an abnormality; and a second correcting unit for correcting the second parameter value to the first parameter value when the second detecting element detects an abnormality.
In another preferred embodiment of the present invention, when the first detecting element and the second detecting element detect the parameter at different positions of the same component, the same component is an evaporator or a condenser; the different positions are a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the first detection element is positioned at the refrigerant inlet pipe, and the second detection element is positioned at the refrigerant outlet pipe.
Further, when the same component is an evaporator, the calculation unit includes: a second calculating subunit, configured to calculate a difference between the first parameter value a and the second parameter value b: b-a; the judging unit includes: the second judgment subunit is used for judging whether the b-a is positioned in a second preset abnormal range; and the third determining subunit is used for determining that the first detection element and the second detection element detect the abnormality when the b-a is positioned in the second preset abnormality range.
Further, when the same component is a condenser, the calculation unit includes: a third calculation subunit, configured to calculate a difference between the first parameter value a and the second parameter value b: a-b; the judging unit includes: the third judgment subunit is used for judging whether the a-b is positioned in a second preset abnormal range or not; and a fourth determining subunit determining that the first detecting element and the second detecting element detect an abnormality when a-b are within a second preset abnormality range.
Preferably, the control module 406 includes: a second correcting unit for correcting the first parameter value to a second parameter value; and a third correcting unit for correcting the second parameter value to the first parameter value.
Optionally, the apparatus further comprises: and the feedback module is used for reporting the detection element which detects the abnormity to the main control after the corrected parameter value is sent to the main control.
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 detection element control method provided in the above embodiment 1, in a preferred embodiment 3 of the present invention, an air conditioning unit is further provided, which includes a first detection element and a second detection element, and the air conditioning unit can implement the detection element control method as described above.
In the above embodiment, a control scheme for detecting element self-diagnosis is provided, and a problem that fault detection of a detecting element is not timely enough is provided, and normal operation parameters of a unit are collected and analyzed to mutually diagnose whether the detecting element is abnormal, and under an abnormal condition, accurate analysis of a fault reason of the unit can be realized in a self-adaptive manner, so that stable operation of the unit is ensured, and after-sale timely problem solving is facilitated, so that a problem that fault detection of the detecting element in the prior art is not timely enough is effectively solved, and the automation degree and accuracy of fault diagnosis of the detecting element and the stability of the unit are improved.
Example 4
Based on the detecting element control method provided in the above embodiment 1, in a preferred embodiment 4 of the present invention, there is also provided a computer device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the detecting element control method as described above when executing the program.
In the above embodiment, a control scheme for detecting element self-diagnosis is provided, and a problem that fault detection of a detecting element is not timely enough is provided, and normal operation parameters of a unit are collected and analyzed to mutually diagnose whether the detecting element is abnormal, and under an abnormal condition, accurate analysis of a fault reason of the unit can be realized in a self-adaptive manner, so that stable operation of the unit is ensured, and after-sale timely problem solving is facilitated, so that a problem that fault detection of the detecting element in the prior art is not timely enough is effectively solved, and the automation degree and accuracy of fault diagnosis of the detecting element and the stability of the unit are improved.
Example 5
Based on the detection element control method provided in embodiment 1 described above, there is also provided in preferred embodiment 5 of the present invention a storage medium containing computer-executable instructions for performing the detection element control method described above when executed by a computer processor.
In the above embodiment, a control scheme for detecting element self-diagnosis is provided, and a problem that fault detection of a detecting element is not timely enough is provided, and normal operation parameters of a unit are collected and analyzed to mutually diagnose whether the detecting element is abnormal, and under an abnormal condition, accurate analysis of a fault reason of the unit can be realized in a self-adaptive manner, so that stable operation of the unit is ensured, and after-sale timely problem solving is facilitated, so that a problem that fault detection of the detecting element in the prior art is not timely enough is effectively solved, and the automation degree and accuracy of fault diagnosis of the detecting element and the stability of the unit are 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 (12)
1. A detecting element control method characterized by comprising:
acquiring a first parameter value detected by a first detection element and a second parameter value detected by a second detection element;
judging whether the first detection element and/or the second detection element detects abnormity according to the first parameter value and the second parameter value;
when the first detection element and/or the second detection element are judged to be abnormal, correcting the parameter value of the abnormal detection element, and sending the corrected parameter value to the main control unit so as to participate in the control of the unit;
judging whether the first detection element and/or the second detection element detects abnormality according to the first parameter value and the second parameter value, including:
calculating a difference between the first parameter value and the second parameter value;
judging whether the first detection element and/or the second detection element detects abnormity or not according to the difference value;
wherein the first detection element and the second detection element are used for detecting the same parameter; calculating a difference between the first parameter value and the second parameter value when the first detection element and the second detection element detect the same parameter, comprising:
calculating the difference between the first parameter value a and the second parameter value b: a-b and b-a;
judging whether the a-b and the b-a are positioned in a first preset abnormal range or not; wherein the first preset abnormal range is a range of a difference value between a normal detection value and an abnormal detection value of the first detection element and the second detection element;
when a-b is within the first preset abnormal range, determining that the second detection element detects abnormality;
and when b-a is within the first preset abnormal range, determining that the first detection element detects abnormality.
2. The method of claim 1, wherein the first sensing element and the second sensing element are also used to sense parameters of different positions of the same component.
3. The method of claim 1, wherein said modifying a parameter value of a sensing element that senses an anomaly comprises:
when the first detection element detects abnormality, correcting the first parameter value to the second parameter value;
and correcting the second parameter value to the first parameter value when the second detection element detects an abnormality.
4. The method of claim 2, wherein the same component is an evaporator or a condenser when the first and second sensing elements sense the parameter at different locations of the same component;
the different positions are a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the first detection element is located at the refrigerant inlet pipe, and the second detection element is located at the refrigerant outlet pipe.
5. The method of claim 4, wherein calculating the difference between the first parameter value and the second parameter value when the same component is an evaporator comprises:
calculating the difference between the first parameter value a and the second parameter value b: b-a;
judging whether the first detection element and/or the second detection element detects abnormality according to the difference value, including:
judging whether the b-a is located in a second preset abnormal range;
and when b-a is within the second preset abnormal range, determining that the first detection element and the second detection element detect the abnormality.
6. The method of claim 4, wherein calculating the difference between the first parameter value and the second parameter value when the same component is a condenser comprises:
calculating the difference between the first parameter value a and the second parameter value b: a-b;
judging whether the first detection element and/or the second detection element detects abnormality according to the difference value, including:
judging whether the a-b is located in a second preset abnormal range or not;
and when the a-b is positioned in the second preset abnormal range, determining that the first detection element and the second detection element detect the abnormality.
7. The method according to claim 5 or 6, wherein the correcting a parameter value of a detection element that detects an abnormality includes:
correcting the first parameter value to the second parameter value; and
and correcting the second parameter value into the first parameter value.
8. The method of claim 1, further comprising, after the sending the modified parameter value to the master, the step of:
and reporting the detection element with the abnormal detection to the main control.
9. A detecting element control device characterized by comprising:
the acquisition module is used for acquiring a first parameter value detected by the first detection element and a second parameter value detected by the second detection element;
the judging module is used for judging whether the first detection element and/or the second detection element detect abnormity or not according to the first parameter value and the second parameter value;
the control module is used for correcting the parameter value of the detection element with the abnormal detection when the first detection element and/or the second detection element is judged to be abnormal, and sending the corrected parameter value to the main control unit so as to participate in the control of the unit;
the judging module comprises: a calculation unit for calculating a difference between the first parameter value and the second parameter value; a judging unit for judging whether the first detecting element and/or the second detecting element detects abnormality or not based on the difference value;
wherein the first detection element and the second detection element are used for detecting the same parameter; when the first detecting element and the second detecting element detect the same parameter, the calculating unit includes: a first calculating subunit, configured to calculate a difference between the first parameter value a and the second parameter value b: a-b and b-a;
the judging unit includes: the first judgment subunit is used for judging whether the a-b and the b-a are positioned in a first preset abnormal range or not; wherein the first preset abnormal range is a range of a difference value between a normal detection value and an abnormal detection value of the first detection element and the second detection element; the first determining subunit is used for determining that the second detection element detects the abnormity when the a-b is positioned in a first preset abnormity range; and the second determining subunit is used for determining that the first detection element detects the abnormality when the b-a is positioned in the first preset abnormality range.
10. Air conditioning unit comprising a first detection element and a second detection element, characterized in that it is able to implement a detection element control method according to any one of claims 1 to 8.
11. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the detection element control method according to any one of claims 1 to 8 when executing the program.
12. A storage medium containing computer-executable instructions for performing the detection element control method of any one of claims 1 to 8 when executed by a computer processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296688.7A CN109654662B (en) | 2018-11-01 | 2018-11-01 | Detection element control method and device and air conditioning unit |
| PCT/CN2018/120630 WO2020087672A1 (en) | 2018-11-01 | 2018-12-12 | Detection element control method and apparatus, and air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296688.7A CN109654662B (en) | 2018-11-01 | 2018-11-01 | Detection element control method and device and air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654662A CN109654662A (en) | 2019-04-19 |
| CN109654662B true CN109654662B (en) | 2020-05-01 |
Family
ID=66110623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296688.7A Active CN109654662B (en) | 2018-11-01 | 2018-11-01 | Detection element control method and device and air conditioning unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109654662B (en) |
| WO (1) | WO2020087672A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332667B (en) * | 2019-07-11 | 2020-07-14 | 珠海格力电器股份有限公司 | Self-repairing control method, device and system for failure of oil return temperature sensing bulb |
| CN110501094A (en) * | 2019-09-05 | 2019-11-26 | 珠海格力电器股份有限公司 | Fault detection and calibration method for electric appliance temperature sensor, air conditioner and computer readable storage medium |
| CN110925948B (en) * | 2019-12-12 | 2021-06-04 | 宁波奥克斯电气股份有限公司 | A detection method, system and air conditioner |
| CN111397145B (en) * | 2020-04-16 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Air conditioner control method, air conditioner control device and air conditioner |
| CN112252408A (en) * | 2020-09-10 | 2021-01-22 | 南京希玛格节能科技有限公司 | Pressure monitoring device in heat accumulating type power distribution and water supply system |
| CN115978756B (en) * | 2022-12-22 | 2024-06-04 | 宁波奥克斯电气股份有限公司 | Control method for self-repairing of multi-split air conditioner sensor and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015108499A (en) * | 2013-10-24 | 2015-06-11 | 清水建設株式会社 | Air conditioning optimum control system and air conditioning optimum control method |
| CN106642584A (en) * | 2016-12-27 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioner operation control method and device |
| CN107165814A (en) * | 2017-05-27 | 2017-09-15 | 珠海格力电器股份有限公司 | Control method and device for double-compressor refrigeration air-conditioning system |
| CN107631407A (en) * | 2017-09-11 | 2018-01-26 | 广东美的暖通设备有限公司 | The wiring faults detection method and device of air conditioner, air conditioner |
| CN107655147A (en) * | 2017-09-27 | 2018-02-02 | 广东美的暖通设备有限公司 | Outdoor unit emergency control method and its device |
| CN107763795A (en) * | 2017-10-12 | 2018-03-06 | 广东美的暖通设备有限公司 | Temperature sensor detection method and device applied to air-conditioning equipment |
| CN107796091A (en) * | 2017-10-18 | 2018-03-13 | 珠海格力电器股份有限公司 | Sensor correction method and device in air conditioning unit and air conditioner adopting device |
| CN108139280A (en) * | 2015-10-14 | 2018-06-08 | 株式会社电装 | Compound sensor |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062602A (en) * | 1992-06-17 | 1994-01-11 | Zexel Corp | Diagnostic device for sensor failure |
| CN101504179B (en) * | 2009-02-27 | 2011-04-06 | 海信（山东）空调有限公司 | Substitution control method for air conditioner fault sensor |
| CN101504178B (en) * | 2009-02-27 | 2011-05-18 | 海信（山东）空调有限公司 | Substitution control method for air conditioner fault sensor |
| WO2015040683A1 (en) * | 2013-09-18 | 2015-03-26 | 株式会社日立製作所 | Sensor soundness determination method and sensor soundness determination device |
| CN104765354B (en) * | 2014-01-10 | 2018-02-09 | 北京博锐尚格节能技术股份有限公司 | A kind of method for diagnosing faults, the apparatus and system of sensor and executive component |
| CN105021381B (en) * | 2014-04-30 | 2018-04-06 | 广东美的暖通设备有限公司 | The fault detection method and device of electric expansion valve in air conditioner |
| CN104198203B (en) * | 2014-08-28 | 2017-10-31 | 广东美的制冷设备有限公司 | A kind of air conditioner operation detecting method and device |
| CN105910732A (en) * | 2016-04-14 | 2016-08-31 | 广东美的暖通设备有限公司 | Accurate drift fault detection method and system of temperature sensor, and air conditioner |
| CN106642604B (en) * | 2016-12-08 | 2019-07-23 | 海信（山东）空调有限公司 | A kind of air-conditioning fault detection system and method |
| CN107166638B (en) * | 2017-05-09 | 2020-04-17 | 广东美的暖通设备有限公司 | Fault detection method and device of temperature sensor and multi-connected air conditioning system |
| CN107036354B (en) * | 2017-05-25 | 2019-05-07 | 绵阳美菱软件技术有限公司 | A kind of detection method, device and the air-conditioning system of air conditioner leakage fluorine |
| CN107401820B (en) * | 2017-07-21 | 2019-12-27 | 广东美的暖通设备有限公司 | Air conditioning system and control method and device for temperature sensor of air conditioning system during fault |
| CN107631413B (en) * | 2017-09-20 | 2020-03-06 | 广东美的制冷设备有限公司 | Method and device for detecting loosening fault of exhaust temperature sensor and air conditioner |
| CN107991019A (en) * | 2017-11-27 | 2018-05-04 | 宁波奥克斯电气股份有限公司 | High pressure sensor fault handling method and device |
-
2018
- 2018-11-01 CN CN201811296688.7A patent/CN109654662B/en active Active
- 2018-12-12 WO PCT/CN2018/120630 patent/WO2020087672A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015108499A (en) * | 2013-10-24 | 2015-06-11 | 清水建設株式会社 | Air conditioning optimum control system and air conditioning optimum control method |
| CN108139280A (en) * | 2015-10-14 | 2018-06-08 | 株式会社电装 | Compound sensor |
| CN106642584A (en) * | 2016-12-27 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioner operation control method and device |
| CN107165814A (en) * | 2017-05-27 | 2017-09-15 | 珠海格力电器股份有限公司 | Control method and device for double-compressor refrigeration air-conditioning system |
| CN107631407A (en) * | 2017-09-11 | 2018-01-26 | 广东美的暖通设备有限公司 | The wiring faults detection method and device of air conditioner, air conditioner |
| CN107655147A (en) * | 2017-09-27 | 2018-02-02 | 广东美的暖通设备有限公司 | Outdoor unit emergency control method and its device |
| CN107763795A (en) * | 2017-10-12 | 2018-03-06 | 广东美的暖通设备有限公司 | Temperature sensor detection method and device applied to air-conditioning equipment |
| CN107796091A (en) * | 2017-10-18 | 2018-03-13 | 珠海格力电器股份有限公司 | Sensor correction method and device in air conditioning unit and air conditioner adopting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109654662A (en) | 2019-04-19 |
| WO2020087672A1 (en) | 2020-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109654662B (en) | Detection element control method and device and air conditioning unit | |
| CN107166638B (en) | Fault detection method and device of temperature sensor and multi-connected air conditioning system | |
| US20130197698A1 (en) | HVAC System Fault Root Cause Self-Determination | |
| CN103134142B (en) | Method for detecting complete blockage of air conditioning system | |
| JP7260292B2 (en) | Abnormality diagnosis device and abnormality diagnosis method | |
| CN110986244B (en) | Air conditioner pipeline detection method and device, storage medium, terminal and air conditioner | |
| CN107621040B (en) | Error correction method and device for temperature sensor and air conditioner | |
| CN113654182A (en) | Method for detecting refrigerant leakage, computer readable storage medium and air conditioner | |
| CN112648710B (en) | Exhaust temperature sensor fault detection method and device and air conditioning equipment | |
| Katipamula et al. | Rooftop unit embedded diagnostics: Automated fault detection and diagnostics (AFDD) development, field testing and validation | |
| CN110736184A (en) | Air conditioner and method and device for detecting abnormal type of air conditioner | |
| CN107894063B (en) | Multi-split system diagnosis method and multi-split system | |
| CN106595152A (en) | Method and device for determining abnormal circulation of air conditioner refrigerant and air conditioner | |
| CN109357357A (en) | Method for diagnosing compressor exhaust temperature detection abnormality, multi-split air conditioner, and storage medium | |
| JP2012127625A (en) | Fault diagnosis apparatus to be used for air conditioning apparatus | |
| JP2004169989A (en) | Fault diagnosis system | |
| AU2022250941B2 (en) | Air conditioning system, abnormality estimation method for air conditioning system, air conditioner and abnormality estimation method for air conditioner | |
| JP2002147818A (en) | Air conditioner and failure in operation deciding method | |
| JP3976320B2 (en) | Air conditioner failure diagnosis device | |
| CN113375287B (en) | Low-voltage sensor fault identification control method and device and multi-split air conditioning system | |
| CN108592312B (en) | Method, device and system for checking wireless networking of air conditioning unit | |
| CN114459119B (en) | Air conditioner blockage detection method, device, equipment and storage medium | |
| JP5350684B2 (en) | Failure diagnosis device used for refrigeration cycle equipment | |
| AU2020240773A1 (en) | Apparatus, method, and program for estimating amount of refrigerant | |
| CN116872685A (en) | Remote diagnosis method, system, platform and storage medium for vehicle air conditioning system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |