CN111023439A - Fault early warning control method of air conditioner and air conditioner - Google Patents
Fault early warning control method of air conditioner and air conditioner Download PDFInfo
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- CN111023439A CN111023439A CN201911299438.3A CN201911299438A CN111023439A CN 111023439 A CN111023439 A CN 111023439A CN 201911299438 A CN201911299438 A CN 201911299438A CN 111023439 A CN111023439 A CN 111023439A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a fault early warning control method of an air conditioner and the air conditioner, relates to the technical field of air conditioners and aims to solve the problem that the fault early warning method of the air conditioner in the prior art cannot repair all faults of the air conditioner. The fault early warning control method comprises the steps of collecting operation parameters, judging whether the operation parameters are in a normal operation range of the air conditioner, and if the operation parameters are not in the normal operation range, judging whether the fault type of the operation parameters, which can cause the fault, is a first-class fault or a second-class fault; if one type of fault occurs, correcting the operation parameters according to a preset correction mode corresponding to the operation parameters which can cause the one type of fault to occur, so that the operation parameters are in a normal operation range; if the second type of fault occurs, early warning information is sent out, and the compressor of the air conditioner is controlled to operate according to the lowest operation frequency. The fault early warning method is used for early warning the fault of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fault early warning control method of an air conditioner and the air conditioner.
Background
The air conditioner is an electric appliance necessary for people in daily life, and along with the continuous development of intellectualization, the intellectualization requirement of users on the air conditioner is continuously improved.
When the existing air conditioner is used, a user cannot know whether the air conditioner is in a fault state or whether hidden dangers possibly causing faults exist, and some air conditioners have fault prompting functions which can display that the air conditioner is in the fault state and inform the user of which faults occur to the air conditioner, so that the user can maintain the air conditioner in a targeted mode according to the prompts, the fault prompting functions are used for prompting the user, the faults occurring to the air conditioner and which faults occur to the air conditioner, and the faults occur are all emergencies.
Based on the above problems, in the prior art, an air conditioner with a fault early warning function has appeared, and a flow chart of an early warning method of the air conditioner is shown in fig. 1, and a specific early warning method is as follows, current operation parameters of the air conditioner are collected, and whether the data type of the current operation parameters is a first data type is judged; and under the condition that the data type of the current operation parameter is judged to be a plurality of first data types, judging whether the current operation parameter is in a current effective operation range, and under the condition that the current operation parameter is judged not to be in the current effective operation range, adjusting the operation power of the air conditioner according to a preset mode to correct the current operation parameter to be in the current effective operation range.
In the early warning method, the operation power of the air conditioner is adjusted in a preset mode so that the current operation parameters are in the current effective operation range, however, some faults in the possible faults of the air conditioner cannot eliminate potential hidden dangers through correcting the parameters, for example, the residual quantity of the refrigerant in the air conditioner is low, so that when the faults occur, the air conditioner cannot correct the faults, the normal use of a user is affected, and the user experience is affected.
Disclosure of Invention
The embodiment of the invention provides a fault early warning control method of an air conditioner and the air conditioner, which can correct and repair different faults of the air conditioner in different modes, avoid sudden occurrence of the faults and improve user experience.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
an embodiment of the invention provides a fault early warning control method of an air conditioner, which comprises the following steps: collecting operation parameters and judging whether the operation parameters are in a normal operation range of the air conditioner, wherein if the operation parameters are in the normal operation range, the air conditioner continues to operate; if the operation parameters are not in the normal operation range, judging the fault type of the operation parameters which can cause faults, wherein the fault type comprises a first-class fault and a second-class fault, the first-class fault is a fault which can be corrected and repaired by the air conditioner through the air conditioner, and the second-class fault is a fault which can not be corrected by the air conditioner and needs manual repair; if the type of fault occurs, correcting the operation parameter according to a preset correction mode corresponding to the operation parameter which can cause the type of fault to occur, so that the operation parameter is in the normal operation range; if the two types of faults occur, early warning information is sent out, and the compressor of the air conditioner is controlled to operate according to the lowest operation frequency.
The fault early warning control method provided by the embodiment of the invention comprises the steps of firstly collecting the operation parameters of the air conditioner, then judging whether the operation parameters are in a normal operation range, if not, judging that the faults can occur, dividing the possible faults into two types, wherein the faults can be corrected and repaired by adjusting the operation parameters by the air conditioner, namely the first type of faults, the faults cannot be corrected by adjusting the operation parameters by the air conditioner, and the faults needing manual repair are the second type of faults; to the second type trouble that can not self-regulate, then in time send early warning signal, and control the compressor of air conditioner and follow the minimum operating frequency operation, make the user in time learn the situation of air conditioner to can in time maintain the air conditioner, avoid the emergence of proruption trouble, do not influence the user and use, promote user experience and feel.
The embodiment of the invention provides an air conditioner with a fault early warning function, which comprises a fault early warning device, wherein the fault early warning device comprises a data acquisition unit for acquiring the operation parameters of the air conditioner; the first judgment unit is used for judging whether the operation parameters are in a normal operation range; the second judging unit is used for judging the fault types which can be caused by the operation parameters when the operation parameters are not in the normal operation range, and the fault types comprise a first type fault and a second type fault; and the execution unit is used for correcting the operation parameters according to a preset correction mode corresponding to the operation parameters which can cause the first-class faults, or sending early warning information to the second-class faults and controlling the compressor of the air conditioner to operate at the lowest operation frequency.
According to the air conditioner with the fault early warning function provided by the embodiment of the invention, the data acquisition unit is used for acquiring the operation parameters of the air conditioner during operation, then the first judgment unit is used for judging whether the operation parameters are in a normal operation range, and if the operation parameters are in the normal operation range, the air conditioner continues to operate; if the fault type is not in the normal operation range, the second judgment unit judges whether the fault type of the operation parameter which can cause the fault is a first-class fault or a second-class fault, the first-class fault can be repaired in a mode of correcting the operation parameter by the air conditioner, the second-class fault cannot be self-adjusted and needs to be repaired manually, if the fault type of the operation parameter is a first-class fault, the execution unit corrects the operation parameter according to a preset correction mode corresponding to the operation parameter which causes the fault, so that the operation parameter is in the normal operation range, and the air conditioner operates normally; if the fault is the second type fault, the execution unit sends out early warning information and controls a compressor of the air conditioner to operate according to the lowest operation frequency, so that a user can know the operation condition of the air conditioner in time and early warning on the possible fault of the air conditioner is realized; according to the air conditioner provided by the embodiment of the invention, the possible faults of the air conditioner are divided into two types, one type of fault can be used for adjusting and repairing the operation parameters through the air conditioner, so that the air conditioner can normally operate, and the second type of fault can not be adjusted by self, so that early warning information is sent out in time, a user can know the occurrence of the fault in time, the maintenance is carried out in time through manpower, sudden faults are avoided, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a control method in the prior art;
fig. 2 is a control logic diagram of a fault early warning control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a system structure diagram of a fault warning device of an air conditioner according to an embodiment of the present invention;
fig. 4 is a control flowchart of a fault early warning control method of an air conditioner according to an embodiment of the present invention;
reference numerals: 100. a fault pre-warning device; 110. a data acquisition unit; 120. a data processing unit; 130. a first judgment unit; 140. a second judgment unit; 150. an execution unit; 160. a storage unit; 200. a display screen.
Detailed Description
The following describes a fault early warning control method for an air conditioner and the air conditioner provided by the embodiment of the invention in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 2, the method for controlling the fault early warning of the air conditioner according to the embodiment of the present invention specifically includes the following steps:
s101, collecting operation parameters of an air conditioner in an operation process;
specifically, one or more of the operation parameters may be acquired, and the operation parameters may be acquired by a sensor.
S102, judging whether the collected operation parameters are in a normal operation range of the air conditioner;
specifically, the normal operation range refers to a reference range corresponding to an operation parameter when the air conditioner operates normally, and if the operation parameter is within the normal operation range, the air conditioner continues to operate; and if the operation parameter is not in the normal operation range, continuing to judge.
S103, under the condition that the operation parameters are not in the normal operation range, judging the fault type of the fault caused by the operation parameters;
specifically, the fault types include a first type fault and a second type fault, that is, faults occurring in the air conditioner are classified into two types, and the first type fault refers to a fault which can be repaired by correcting an operation parameter through the air conditioner itself, for example, an operating temperature of the air conditioner is too high, an operating current of the air conditioner is too high, and the like.
The above two types of faults refer to unavoidable faults, and the occurrence of the fault cannot be repaired by correcting the operation parameters of the air conditioner, and the fault needs to be repaired manually, for example, if the air conditioner lacks a refrigerant (freon), the air conditioner needs to be repaired manually by adding freon, so that the fault can be repaired.
S104, if the operation parameters can cause a type of fault, correcting the operation parameters according to a preset correction mode corresponding to the operation parameters which can cause the type of fault, so that the operation parameters are within a normal operation range, and the air conditioner can normally operate; if the operation parameters can cause the second type of faults, sending out early warning information and controlling a compressor of the air conditioner to operate according to the lowest operation frequency;
specifically, for one type of faults, the operation parameters are adjusted to be within a normal operation range, so that the air conditioner can normally operate; for the second type of faults, early warning information is sent out in time, the compressor of the air conditioner is controlled to run according to the lowest running frequency, on one hand, a user can know the running condition of the air conditioner in time, so that repair measures can be taken in time, the air conditioner is prevented from being in fault, on the other hand, the running frequency of the compressor is reduced, the running consumption of the air conditioner is reduced, the fault occurrence time of the air conditioner is prolonged, the user can close the air conditioner in time, and the air conditioner is maintained.
The fault early warning control method provided by the embodiment of the invention comprises the steps of firstly collecting the operation parameters of the air conditioner, then judging whether the operation parameters are in a normal operation range, and if the operation parameters are not in the normal operation range, judging whether the operation parameters are in the normal operation range, and if the operation parameters are not in the normal operation range, the faults occur, so that the faults which can occur are divided into two types, namely the faults which can be self-regulated into one type, the faults which can not be self-regulated into two types, and the faults which can not be self-regulated into two types, can be corrected by self-regulation, so that the operation parameters are in the normal operation range of the air conditioner, and for the faults which can not be self-regulated, the early warning signals are timely sent out, so that a user can timely know the condition of the.
In the fault early warning control method provided by the embodiment of the invention, whether the operation parameters are in the normal operation range is judged by the following method: and taking a parameter difference from the operation parameter and a preset fault parameter corresponding to the operation parameter, judging whether the parameter difference is in a safety interval, if so, judging that the operation parameter is in a normal operation range, and if not, judging that the operation parameter is not in the normal operation range. The operation parameters are compared with the preset fault parameters, whether the operation parameters are in the normal operation range or not is judged, and the operation parameters which are not in the normal operation range are adjusted or early warning signals are sent out, so that a user can know the operation condition of the air conditioner, and the air conditioner is prevented from suddenly breaking down.
Because the fault parameter is a determined critical value, that is, when the operation parameter is equal to the fault parameter, the air conditioner will be in fault, therefore, by using the fault parameter as the critical value, it can be ensured that the air conditioner will not be in fault only by ensuring that the operation parameter is not equal to the fault parameter or exceeds the fault parameter, therefore, in the fault early warning control method provided by the embodiment of the invention, the operation parameter and the fault parameter are subjected to parameter difference, when the parameter difference is in a safety interval, that is, the operation parameter is in a normal operation range of the air conditioner, when the parameter difference exceeds the safety interval, that is, the value of the operation parameter is already close to the value of the fault parameter, the air conditioner continues to operate according to the current parameter, the fault will occur, therefore, when the parameter difference exceeds the safety interval, the operation parameter is further judged and corresponding repair measures are taken, namely, whether the fault caused by the operation parameter is a first-class fault or a second-class fault is judged, and then corresponding processing is carried out according to the judgment result, so that early warning is carried out on the possible fault, and the sudden occurrence of the fault is avoided.
The method for judging the fault type of the fault caused by the operation parameters comprises the following steps: acquiring parameter characteristics of the operating parameters, and comparing the parameter characteristics of the operating parameters with characteristics of comparison parameters corresponding to faults recorded in a preset fault classification table, wherein the fault classification table comprises the characteristics of the comparison parameters corresponding to the first-class faults and the characteristics of the comparison parameters corresponding to the second-class faults, when the parameter characteristics of the operating parameters are the same as the characteristics of the comparison parameters corresponding to one fault in the fault classification table, if the fault corresponding to the comparison parameters is a first-class fault, the fault type of the fault caused by the operating parameters is a first-class fault, and if the fault corresponding to the comparison parameters is a second-class fault, the fault type of the fault caused by the operating parameters is a second-class fault. The parameter characteristics of the operation parameters are compared with the characteristics of the comparison parameters in the fault classification table, the comparison parameters which are the same as the parameter characteristics of the operation parameters are determined, the fault type of the fault caused by the operation parameters is the same as the fault type of the fault corresponding to the comparison parameters, and therefore whether the fault type of the fault caused by the operation parameters is a first-class fault or a second-class fault can be determined.
Furthermore, the parameter characteristics of the operating parameters may be names of the operating parameters, codes set for the operating parameters, or units of the operating parameters, and the like, and the characteristics of the comparison parameters are the same as the parameter characteristics of the operating parameters, so that it can be determined by comparison which comparison parameter corresponds to which comparison parameter, and the fault types of the faults corresponding to the comparison parameter and the comparison parameter are the same, thereby obtaining whether the fault type of the fault caused by the operating parameters is a first-class fault or a second-class fault.
In the fault early warning control method provided by the embodiment of the invention, the preset correction mode comprises the following steps of adjusting the operation parameters by taking preset correction parameters corresponding to the operation parameters causing the type of faults as target parameters, wherein the preset correction parameters are within the normal operation range. The preset correction parameters corresponding to each fault are input in the system in advance, and the preset correction parameters are within the normal operation range of the air conditioner, so that the operation parameters are adjusted by taking the preset correction parameters as target parameters, the operation parameters are within the normal operation range of the air conditioner, early warning and repairing are performed on the type of faults, the occurrence of the type of faults is avoided, and the normal operation of the air conditioner is ensured.
It should be noted that, in the fault parameter table in the embodiment of the present invention, each comparison parameter is provided with a corresponding feature, a preset fault parameter, a preset correction parameter, and a fault type causing a fault, when a parameter difference between an operation parameter and a preset fault parameter is not within a safety interval, the operation parameter is corrected according to the corresponding preset correction parameter for a first-class fault, and a corresponding correction method may be further preset corresponding to each preset correction parameter, so that correction may be performed according to the preset correction method and with the correction parameter as a target parameter, and the correction methods for a second-class fault may be uniformly set to send out an early warning message, and at the same time, the compressor of the air conditioner is controlled to operate at the lowest operation frequency.
In the fault early warning control method provided by the embodiment of the invention, the operation parameters comprise the working voltage, the working current and the operation power of the air conditioner. The operating parameters include operating voltages of the air conditioner including operating voltages of various components in the air conditioner, such as bus voltage, compressor voltage, and the like, and similarly, the operating currents and powers also include operating currents and operating powers of various components, such as bus current, compressor operating power, and the like.
In the fault early warning control method provided by the embodiment of the invention, the operation parameters comprise the operation temperature of an outdoor unit and the operation temperature of an indoor unit of the air conditioner. The operation temperature of the outdoor unit includes operation temperatures of various components in the outdoor unit, such as a case temperature, a compressor temperature, etc., and the operation temperature of the indoor unit also includes operation temperatures of various components in the indoor unit, such as an indoor coil temperature, etc.
In the fault early warning control method provided by the embodiment of the invention, the operation parameters comprise an operation mode, a preset wind speed and a preset temperature. And the operating parameters may also include preset minimum amounts of refrigerant, etc.
An embodiment of the present invention further provides an air conditioner with a fault early warning function, where the air conditioner may use the fault early warning control method of the air conditioner, as shown in fig. 3, the air conditioner includes a fault early warning device 100, and the fault early warning device 100 includes: a data acquisition unit 110 for acquiring operation parameters of the air conditioner; a first judging unit 130, configured to judge whether the operation parameter is within a normal operation range; a second determining unit 140, configured to determine a fault type of a fault that may occur due to the operation parameter when the operation parameter is not within a normal operation range, where the fault type includes a first-type fault and a second-type fault; and the execution unit 150 is configured to correct the operation parameter according to a preset correction mode corresponding to the operation parameter that may cause the first-class fault, or send warning information to the second-class fault, and control the compressor of the air conditioner to operate at the lowest operation frequency.
According to the air conditioner with the fault early warning function provided by the embodiment of the invention, the data acquisition unit 110 is used for acquiring the operation parameters of the air conditioner during operation, and then the first judgment unit 130 is used for judging whether the operation parameters are in a normal operation range, and if the operation parameters are in the normal operation range, the air conditioner continues to operate; if the operation parameter is not in the normal operation range, the second judgment unit 140 judges whether the type of the fault of the operation parameter, which may cause the fault, is a first-class fault or a second-class fault, the first-class fault can be repaired in a mode of correcting the operation parameter by the air conditioner, the second-class fault cannot be repaired by self adjustment, and needs to be repaired through manual intervention, and if the first-class fault is, the execution unit 150 corrects the operation parameter according to the operation parameter causing the fault in a preset correction mode, so that the operation parameter is in the normal operation range, and the air conditioner operates normally; if the fault is the second type fault, the execution unit 150 sends out early warning information and controls the compressor of the air conditioner to operate at the lowest operation frequency, so that a user can know the operation condition of the air conditioner in time and early warning on the possible fault of the air conditioner is realized; according to the air conditioner provided by the embodiment of the invention, the possible faults of the air conditioner are divided into two types, one type of fault can adjust and repair the operation parameters through the air conditioner, so that the air conditioner can normally operate, and the second type of fault can not be adjusted by self, so that early warning information is sent out in time, a user can know the occurrence of the fault in time, the maintenance is carried out in time, sudden faults are avoided, and the user experience is improved.
The fault early warning apparatus 100 provided in the embodiment of the present invention further includes a data processing unit 120, where the data processing unit 120 is configured to obtain a parameter difference between the operating parameter and a preset fault parameter corresponding to the operating parameter, and the first determining unit 130 determines whether the parameter difference is within a safety interval, if the parameter difference is within the safety interval, the operating parameter is within a normal operating range, and if the parameter difference is not within the safety interval, the operating parameter is not within the normal operating range. The parameter difference between the operation parameter and the preset fault parameter is obtained through the data processing unit 120, and the preset fault parameter is a determined critical value, so that when the parameter difference exceeds a safety interval, the operation parameter is close to the preset fault parameter, if no measure is taken, a fault occurs, and then whether the fault is a first-class fault or a second-class fault is determined, and the fault is corrected in a corresponding preset correction mode, so that a fault early warning function is realized, a sudden fault is avoided, and user experience is improved.
The fault early warning apparatus 100 provided in the embodiment of the present invention further includes a data storage unit 160, where the data storage unit 160 is configured to store a fault type corresponding to each fault caused by the operating parameter, the preset correction mode corresponding to the operating parameter that may cause the fault of the type, and the preset fault parameter. These data are stored in the data storage unit 160 in advance, and in the operation process of the air conditioner, other units can directly call these data to compare, judge and correct the operation parameters, thereby realizing fault early warning and repair.
The air conditioner provided by the embodiment of the invention comprises a display screen 200, and when the operating parameters are determined to cause the second-class faults, the sent early warning information is displayed on the display screen 200, so that a user can more intuitively know which fault occurs, and can timely contact maintenance personnel to maintain the fault without influencing the use of the user.
Further, a type of fault can be displayed on the display screen 200, so that the user can know that the air conditioner is in self correction, and the early warning information disappears after the correction is completed.
Preferably, the warning information displayed on the display screen 200 may display a code corresponding to the fault, or may directly display a fault name of the fault caused by the operating parameter and a fault type.
The following describes in detail a fault warning control method for an air conditioner according to an embodiment of the present invention with reference to specific embodiments, as shown in fig. 3 and 4:
s201, collecting operation parameters of an air conditioner in an operation process;
specifically, assuming that the operation parameter is an operation temperature of the compressor, the operation temperature may be detected by a temperature sensor provided on the compressor, and the parameter is collected by a parameter collecting device and then transmitted to the data processing unit 120, assuming that the collected operation temperature of the compressor is 73 ℃.
S202, processing the running temperature of the compressor acquired by the data acquisition unit 110;
specifically, the data processing unit 120 receives the operating temperature parameter, calls a fault parameter value corresponding to the preset operating temperature of the compressor in the system, and subtracts the acquired operating temperature of the compressor from the fault parameter to obtain a parameter difference, where the fault parameter value is assumed to be 80 ℃, and thus the parameter difference between the two is 7 ℃.
S203, judging whether the collected running temperature of the compressor is in a normal running range;
specifically, the first determining unit 130 calls a safety interval of the operating temperature of the compressor preset in the system, and if the parameter difference is in the safety interval, the operating temperature of the compressor is in a normal operating range, and at this time, the air conditioner continues to operate; if the parameter value is not in the interval, the running temperature of the compressor is not in the normal running range, and the parameter needs to be adjusted and corrected; assuming that the safety interval is greater than or equal to 10 ℃, since the parameter difference is 7 ℃, the parameter difference is not within the safety interval, and at this time, the parameter is sent to the second determination unit 140.
S204, judging whether the operating temperature of the compressor is too high to cause a first-class fault or a second-class fault;
specifically, the second determining unit 140 compares the information in the fault parameter table, and the operation temperature of the compressor is too high, which causes the high-temperature protection shutdown of the compressor, and belongs to a type of fault, and then sends specific information of the fault to the executing unit 150.
S205, correcting the type of fault;
specifically, the execution unit 150 corrects the parameter according to a preset corresponding correction method, for example, reduces the operating frequency of the compressor, and sets the correction parameter of the operating temperature of the compressor to 60 ℃; and controlling the running frequency of the compressor to be reduced, so that the running temperature of the compressor is reduced, canceling the fault early warning when the running temperature of the compressor is reduced to 60 ℃, and controlling the compressor to continue running according to the original running frequency.
Therefore, the fault early warning adjustment of the air conditioner can be completed, and in the above embodiment, when the operation temperature of the compressor is detected to be 68 ℃, the parameter difference between the operation temperature and the fault parameter is 12 ℃ and can be known through the data processing unit 120, the parameter difference is greater than 10 ℃, that is, the parameter difference is within the safety interval, so that the air conditioner can continue to operate normally.
It should be noted that, for the preset fault parameters, the fault parameters are input into the system in the form of a fault parameter table, the fault parameter table includes fault parameters corresponding to all faults that may occur to the air conditioner and a safety interval corresponding to each fault parameter, correspondingly, a correction parameter table corresponding to the fault parameter table is also input into the system, the correction parameter table includes correction parameters corresponding to the fault parameters one to one and a preset correction method corresponding to each correction parameter, and for the faults in the fault parameter table and the correction parameter table, the correction methods corresponding to the two types of faults in the correction parameter table may be set as "sending out early warning information". Thus, the data processing unit 120, the first judging unit 130, the second judging unit 140, and the executing unit 150 can determine information such as a fault type and a correction method by calling the fault parameter table and the correction parameter table.
Another specific embodiment is provided below to describe in detail the air conditioner with a fault warning function provided in the embodiment of the present invention, as shown in fig. 3 and 4:
s301, collecting operation parameters of the air conditioner in the operation process;
specifically, assuming that the operation parameter is a remaining content of refrigerant (freon) in the air conditioner, the remaining amount of refrigerant in the air conditioner is detected by a sensor, and the parameter is collected by a parameter collecting device and then transmitted to the data processing unit 120, assuming that the collected remaining amount of refrigerant is 120.
S202, processing the running temperature of the compressor acquired by the data acquisition unit 110;
specifically, the data processing unit 120 receives the refrigerant residual quantity parameter, calls a fault parameter value of the refrigerant residual quantity preset in the system, and subtracts the collected refrigerant residual quantity parameter from the fault parameter to obtain a parameter difference, where it is assumed that the fault parameter value is 100, and thus, the parameter difference between the two is 20.
S203, judging whether the acquired refrigerant allowance parameter is in a normal operation range;
specifically, the first determining unit 130 calls a safety interval of a refrigerant margin parameter preset in the system, and if the parameter difference is within the safety interval, the refrigerant margin is within a normal operation range, and at this time, the air conditioner continues to operate; if the parameter value is not in the interval, the refrigerant allowance is not in the normal operation range, and the parameter needs to be adjusted and corrected; assuming that the safety interval is 50 or more, the parameter difference is 20, and thus the parameter difference is not within the safety interval, and at this time, the parameter is sent to the second determination unit 140.
S204, judging whether the operating temperature of the compressor is too high to cause a first-class fault or a second-class fault;
specifically, the second determination unit 140 determines, through classification of various failure parameters in advance, that the remaining amount of refrigerant is too low to be corrected by adjusting the parameters, that the failure is unavoidable, belongs to a type two failure, and then transmits specific information of the failure to the execution unit 150.
S205, correcting the two types of faults;
specifically, the execution unit 150 issues the warning message according to a preset correction method for the two types of faults, that is, a correction method for the low refrigerant residual amount, and therefore, the execution unit 150 sends the fault warning message of the fault to the display 200 to display, and controls the compressor of the air conditioner to operate at the lowest operating frequency.
Therefore, the fault early warning process of the air conditioner can be completed, when a user learns the problems of the air conditioner through the running state of the air conditioner and the early warning information displayed on the display screen 200, the user can timely inform related maintenance personnel, the air conditioner is subjected to fluoridization treatment, when the data acquisition unit 110 acquires new refrigerant allowance parameters, the parameters are continuously transmitted to the data processing unit 120, the parameter difference is obtained by the data processing unit 120, the judgment is carried out by the first judgment unit 130, at the moment, the refrigerant allowance parameters are within the normal running range of the air conditioner, and therefore the early warning information is controlled to be cancelled, and the air conditioner continues to run normally.
Furthermore, the above two types of faults include a motor phase-loss fault except that the refrigerant residual amount is too low, and since one phase of the three-phase motor cannot be adjusted and repaired by itself when the motor cannot work, the three-phase motor needs to be repaired manually, and belongs to the two types of faults.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. A fault early warning control method of an air conditioner is characterized by comprising the following steps: collecting operation parameters and judging whether the operation parameters are in a normal operation range of the air conditioner, wherein if the operation parameters are in the normal operation range, the air conditioner continues to operate;
if the operation parameters are not in the normal operation range, judging the fault type of the operation parameters which can cause faults, wherein the fault type comprises a first-class fault and a second-class fault, the first-class fault is a fault which can be corrected and repaired by the air conditioner through the air conditioner, and the second-class fault is a fault which can not be corrected by the air conditioner and needs manual repair;
if the type of fault occurs, correcting the operation parameter according to a preset correction mode corresponding to the operation parameter which can cause the type of fault to occur, so that the operation parameter is in the normal operation range; if the two types of faults occur, early warning information is sent out, and the compressor of the air conditioner is controlled to operate according to the lowest operation frequency.
2. The fault early warning control method according to claim 1, wherein whether the operation parameter is within a normal operation range of the air conditioner is judged by: and taking a parameter difference from the operation parameter and a preset fault parameter corresponding to the operation parameter, judging whether the parameter difference is in a preset safety interval, if so, judging that the operation parameter is in a normal operation range, and if not, judging that the operation parameter is not in the normal operation range.
3. The fault early warning control method according to claim 1, wherein the method for judging the fault type of the fault caused by the operation parameter comprises the following steps: acquiring parameter characteristics of the operating parameters, and comparing the parameter characteristics of the operating parameters with characteristics of comparison parameters corresponding to faults recorded in a preset fault classification table, wherein the fault classification table comprises the characteristics of the comparison parameters corresponding to the first-class faults and the characteristics of the comparison parameters corresponding to the second-class faults, when the parameter characteristics of the operating parameters are the same as the characteristics of the comparison parameters corresponding to one fault in the fault classification table, if the fault corresponding to the comparison parameters is a first-class fault, the fault type of the fault caused by the operating parameters is a first-class fault, and if the fault corresponding to the comparison parameters is a second-class fault, the fault type of the fault caused by the operating parameters is a second-class fault.
4. The fault early warning control method according to claim 1, wherein the preset correction mode includes a step of adjusting a preset correction parameter corresponding to the operation parameter causing the type of fault as a target parameter, and the preset correction parameter is within the normal operation range.
5. The malfunction early warning control method according to any one of claims 1 to 4, wherein the operation parameters include an operation voltage, an operation current, an operation power, and an operation frequency of the air conditioner.
6. The malfunction early warning control method according to any one of claims 1 to 4, wherein the operation parameters include an operation temperature of an outdoor unit of the air conditioner and an operation temperature of an indoor unit.
7. The malfunction early warning control method according to any one of claims 1 to 4, wherein the operation parameters include an operation mode, a preset wind speed, and a preset temperature.
8. An air conditioner with a fault early warning function, comprising a fault early warning device, wherein the fault early warning device comprises:
the data acquisition unit is used for acquiring the operating parameters of the air conditioner;
the first judgment unit is used for judging whether the operation parameters are in a normal operation range;
the second judging unit is used for judging the fault type of the fault caused by the operation parameter when the operation parameter is not in the normal operation range, and the fault type comprises a first-class fault and a second-class fault;
and the execution unit is used for correcting the operation parameters according to a preset correction mode corresponding to the operation parameters which can cause the first-class faults, or sending early warning information to the second-class faults and controlling the compressor of the air conditioner to operate at the lowest operation frequency.
9. The air conditioner with the fault early warning function according to claim 8, wherein the fault early warning device further comprises a data processing unit, the data processing unit is configured to obtain a parameter difference between the operation parameter and a preset fault parameter corresponding to the operation parameter, the first determining unit determines whether the parameter difference is within a safety interval, if the parameter difference is within the safety interval, the operation parameter is within a normal operation range, and if the parameter difference is not within the safety interval, the operation parameter is not within the normal operation range.
10. The air conditioner with fault pre-warning function according to claim 9, wherein the fault pre-warning device further comprises a data storage unit, and the data storage unit is configured to store a fault type corresponding to each fault caused by the operation parameter, the preset correction mode corresponding to the operation parameter that may cause the one type of fault, and the preset fault parameter.
11. The air conditioner with the fault pre-warning function according to any one of claims 8 to 10, further comprising a display screen for displaying the pre-warning information sent by the execution unit.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556088A (en) * | 2020-11-26 | 2021-03-26 | 珠海格力电器股份有限公司 | Air conditioner and detection method thereof |
| CN112606653A (en) * | 2020-12-07 | 2021-04-06 | 珠海格力电器股份有限公司 | Air conditioner fault monitoring method and device, storage medium and air conditioner |
| CN113063211A (en) * | 2021-04-15 | 2021-07-02 | 重庆中源绿蓝环境科技有限公司 | Alarm information intelligent diagnosis and after-sale order dispatching method for central air-conditioning system |
| CN114110922A (en) * | 2020-08-31 | 2022-03-01 | 佛山市万物互联科技有限公司 | Drainage fault control method of air conditioner and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114110922A (en) * | 2020-08-31 | 2022-03-01 | 佛山市万物互联科技有限公司 | Drainage fault control method of air conditioner and air conditioner |
| CN112556088A (en) * | 2020-11-26 | 2021-03-26 | 珠海格力电器股份有限公司 | Air conditioner and detection method thereof |
| CN112556088B (en) * | 2020-11-26 | 2022-08-02 | 珠海格力电器股份有限公司 | Air conditioner and detection method thereof |
| CN112606653A (en) * | 2020-12-07 | 2021-04-06 | 珠海格力电器股份有限公司 | Air conditioner fault monitoring method and device, storage medium and air conditioner |
| CN113063211A (en) * | 2021-04-15 | 2021-07-02 | 重庆中源绿蓝环境科技有限公司 | Alarm information intelligent diagnosis and after-sale order dispatching method for central air-conditioning system |
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Application publication date: 20200417 |