CN107062559B - A kind of air conditioner lacks fluorine detection method, device and air-conditioning system - Google Patents
A kind of air conditioner lacks fluorine detection method, device and air-conditioning system Download PDFInfo
- Publication number
- CN107062559B CN107062559B CN201710379249.1A CN201710379249A CN107062559B CN 107062559 B CN107062559 B CN 107062559B CN 201710379249 A CN201710379249 A CN 201710379249A CN 107062559 B CN107062559 B CN 107062559B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- detected
- temperature
- fluorine
- average
- 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
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 97
- 239000011737 fluorine Substances 0.000 title claims abstract description 97
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000007812 deficiency Effects 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000002950 deficient Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004334 fluoridation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air conditioner lacks fluorine detection method, device and air-conditioning systems, method includes: to acquire the third temperature parameter of the first temperature parameter of indoor coil, the second temperature parameter of indoor environment and outdoor environment after the compressor of air-conditioning to be detected sets duration with the actual operating frequency operation first not less than predeterminated frequency；Second temperature parameter and the difference of the first temperature parameter absolute value less than the first preset threshold, when the absolute value of the difference of third temperature parameter and second temperature parameter is less than the second preset threshold, so that air conditioner to be detected is run with target operating condition；After the second setting duration, the average indoor temperature of coil pipe mean temperature and indoor environment in third setting duration in duration is set in third in the average running current in third setting duration, indoor coil according to the compressor of the air-conditioning to be detected of acquisition and determines whether air-conditioning to be detected lacks fluorine.It is higher to lack fluorine detection efficiency for technical solution provided by the invention.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a method and a device for detecting fluorine deficiency of an air conditioner and an air conditioning system.
Background
With the development of science and technology and the increasing of economic level, air conditioners have been widely used. Most air conditioners in markets adopt Freon as a refrigerant, and when the air conditioners are short of Freon (the residual proportion of Freon is smaller than a corresponding value), the air conditioners can not carry out effective refrigeration or heating.
At present, whether the air conditioner is lack of fluorine is mainly detected in a manual detection mode.
Because the mode of artifical detection will occupy manpower resources in a large number, and can not detect in time whether the air conditioner lacks fluorine, lead to the lack fluorine detection efficiency of air conditioner extremely low.
Disclosure of Invention
The embodiment of the invention provides a fluorine deficiency detection method and device for an air conditioner and an air conditioning system, and the fluorine deficiency detection efficiency is higher.
In a first aspect, the invention provides a method for detecting lack of fluorine in an air conditioner, which comprises the following steps:
after a compressor of an air conditioner to be detected continuously operates at an actual working frequency which is not less than a preset frequency for a first set time, acquiring a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment;
when a first absolute value of a difference value between a second temperature parameter and the first temperature parameter is smaller than a first preset threshold value, and a second absolute value of a difference value between a third temperature parameter and the second temperature parameter is smaller than a second preset threshold value, sending a trigger instruction carrying at least one working parameter to an MCU (micro controller Unit) of the air conditioner to be detected, so that the air conditioner to be detected operates in a target working state according to each working parameter;
after the air conditioner to be detected operates in the target working state for a second set time, acquiring the average operating current of a compressor of the air conditioner to be detected within a third set time, the average temperature of the indoor coil within the third set time and the average indoor temperature of the indoor environment within the third set time;
and determining whether the air conditioner to be detected is lack of fluorine or not according to the average temperature of the coil, the average indoor temperature and the average running current.
Preferably, the first and second electrodes are formed of a metal,
determining whether the air conditioner to be detected is lack of fluorine according to the average temperature of the coil, the average indoor temperature and the average running current, wherein the determining step comprises the following steps:
calculating a third absolute value of the difference between the average temperature of the coil and the average temperature in the room;
determining the residual proportion of the residual Freon in the air conditioner to be detected according to the third absolute value and the average running current;
judging whether the residual proportion is smaller than a third preset threshold value or not, and if so, determining that the air conditioner to be detected is lack of fluorine; otherwise, determining that the air conditioner to be detected is lack of fluorine.
Preferably, the first and second electrodes are formed of a metal,
before determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average running current, the method further comprises the following steps:
constructing a query table, wherein the query table stores at least one piece of record data, and each piece of record data carries a scale parameter, a current threshold range and a temperature threshold range respectively;
then, the determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average operating current includes:
determining target record data from the query table according to the third absolute value and the average operating current, wherein the third absolute value is within a current temperature threshold range carried by the target record data, and the average operating current is within a current threshold range carried by the target record data;
and determining the current proportion parameter carried in the target record data as the residual proportion of the residual Freon in the air conditioner to be detected.
Preferably, the first and second electrodes are formed of a metal,
before the determining that the air conditioner to be detected is lack of fluorine, the method further comprises the following steps: setting at least one fluorine-lacking grade, wherein each fluorine-lacking grade corresponds to a proportional threshold value;
then, after the determining that the air conditioner to be detected is lack of fluorine, the method further comprises:
determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade;
and generating early warning information carrying the current fluorine-lacking grade and the residual proportion, and sending the early warning information to an external intelligent terminal.
Preferably, the first and second electrodes are formed of a metal,
the at least one operating parameter includes one or more of the following individual operating parameters: the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor and the opening degree of the electronic expansion valve.
In a second aspect, an embodiment of the present invention provides an air conditioner fluorine deficiency detection apparatus, including:
the first parameter processing module is used for acquiring a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment after a compressor of the air conditioner to be detected continuously operates at an actual working frequency which is not less than a preset frequency for a first set time;
the state control module is used for sending a trigger instruction carrying at least one working parameter to a Micro Control Unit (MCU) of the air conditioner to be detected when a first absolute value of a difference value between the second temperature parameter and the first temperature parameter is smaller than a first preset threshold value and a second absolute value of a difference value between the third temperature parameter and the second temperature parameter is smaller than a second preset threshold value, so that the air conditioner to be detected runs in a target working state according to each working parameter;
the second parameter processing module is used for acquiring the average operating current of the compressor of the air conditioner to be detected within a third set time period, the average temperature of the indoor coil within the third set time period and the average indoor temperature of the indoor environment within the third set time period after the air conditioner to be detected operates in the target working state for a second set time period;
and the determining module is used for determining whether the air conditioner to be detected is lack of fluorine or not according to the average temperature of the coil, the average indoor temperature and the average running current.
Preferably, the first and second electrodes are formed of a metal,
the determining module includes: a calculation unit, a determination unit and a judgment processing unit; wherein,
the calculating unit is used for calculating a third absolute value of the difference between the average temperature of the coil and the average temperature in the room;
the determining unit is used for determining the residual proportion of the residual Freon in the air conditioner to be detected according to the third absolute value and the average running current;
the judgment processing unit is used for judging whether the residual proportion is smaller than a third preset threshold value or not, and if yes, determining that the air conditioner to be detected is lack of fluorine; otherwise, determining that the air conditioner to be detected is lack of fluorine.
Preferably, the first and second electrodes are formed of a metal,
further comprising: querying the table; wherein,
the query table is used for storing at least one piece of record data, and each piece of record data carries a scale parameter, a current threshold range and a temperature threshold range respectively;
the determining unit is configured to determine target record data from the lookup table according to the third absolute value and the average operating current, where the third absolute value is within a current temperature threshold range carried by the target record data, and the average operating current is within a current threshold range carried by the target record data; and determining the current proportion parameter carried in the target recording data as the residual proportion of the residual Freon in the air conditioner to be detected.
Preferably, the first and second electrodes are formed of a metal,
further comprising: the system comprises a setting module, a grade determining module and an information feedback module; wherein,
the setting module is used for setting at least one fluorine-lacking grade, and each fluorine-lacking grade corresponds to a proportion threshold value respectively;
the grade determining module is used for determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade;
and the information feedback module is used for generating early warning information carrying the current fluorine-lacking grade and the residual proportion and sending the early warning information to an external intelligent terminal.
In a third aspect, an embodiment of the present invention provides an air conditioning system, including:
an air conditioner and a fluorine deficiency detection device for an air conditioner as described in any one of the above second aspects.
The embodiment of the invention provides a fluorine deficiency detection method and device for an air conditioner and an air conditioning system, wherein in the method, after a compressor of the air conditioner to be detected continuously operates at an actual working frequency which is not less than a preset frequency for a first set time period, a first temperature parameter of an indoor coil, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment are collected, and when the absolute value of the difference value between the second temperature parameter and the first temperature parameter is less than a first preset threshold value and the absolute value of the difference value between the third temperature parameter and the second temperature parameter is less than a second preset threshold value, the air conditioner is possibly lack of fluorine; at this time, in order to eliminate the influence of environmental factors and further verify whether the air conditioner lacks fluorine, a trigger instruction carrying at least one working parameter may be sent to the MCU of the air conditioner to be detected, so that the air conditioner to be detected operates in the target working state according to each working parameter, after the air conditioner to be detected operates in the target working state for a second set time period, the average operating current of the compressor of the air conditioner to be detected within a third set time period, the average temperature of the coil of the indoor coil within the third set time period, and the indoor average temperature of the indoor environment within the third set time period may be obtained, and then whether the air conditioner to be detected lacks fluorine is determined according to the average temperature of the coil, the indoor average temperature, and the average operating current. In conclusion, in the technical scheme provided by the invention, whether the air conditioner is lack of fluorine can be detected more timely and accurately without manual intervention, and the fluorine lack detection efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a fluorine deficiency detection method for an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of another method for detecting fluorine deficiency in an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fluorine deficiency detection device for an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another fluorine deficiency detection device for an air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fluorine deficiency detection device for an air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fluorine deficiency detection device for an air conditioner according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of an air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for detecting fluorine deficiency in an air conditioner, including:
step 101, after a compressor of an air conditioner to be detected continuously operates at an actual working frequency not less than a preset frequency for a first set time, acquiring a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment;
102, when a first absolute value of a difference value between a second temperature parameter and a first temperature parameter is smaller than a first preset threshold value and a second absolute value of a difference value between a third temperature parameter and a second temperature parameter is smaller than a second preset threshold value, sending a trigger instruction carrying at least one working parameter to a Micro Control Unit (MCU) of the air conditioner to be detected so as to enable the air conditioner to be detected to operate in a target working state according to each working parameter;
103, after the air conditioner to be detected operates in the target working state for a second set time, acquiring the average operating current of the compressor of the air conditioner to be detected within a third set time, the average temperature of the indoor coil within the third set time and the average indoor temperature of the indoor environment within the third set time;
and 104, determining whether the air conditioner to be detected is lack of fluorine or not according to the average temperature of the coil, the average indoor temperature and the average running current.
In the above embodiment of the present invention, after the compressor of the air conditioner to be detected continuously operates at the actual operating frequency not less than the preset frequency for the first set time period, the first temperature parameter of the indoor coil, the second temperature parameter of the indoor environment, and the third temperature parameter of the outdoor environment are collected, and when the absolute value of the difference between the second temperature parameter and the first temperature parameter is less than the first preset threshold, and the absolute value of the difference between the third temperature parameter and the second temperature parameter is less than the second preset threshold, it indicates that the air conditioner may have a fluorine deficiency; at this time, in order to eliminate the influence of environmental factors and further verify whether the air conditioner lacks fluorine, a trigger instruction carrying at least one working parameter may be sent to the MCU of the air conditioner to be detected, so that the air conditioner to be detected operates in the target working state according to each working parameter, after the air conditioner to be detected operates in the target working state for a second set time period, the average operating current of the compressor of the air conditioner to be detected within a third set time period, the average temperature of the coil of the indoor coil within the third set time period, and the indoor average temperature of the indoor environment within the third set time period may be obtained, and then whether the air conditioner to be detected lacks fluorine is determined according to the average temperature of the coil, the indoor average temperature, and the average operating current. In conclusion, in the technical scheme provided by the invention, whether the air conditioner is lack of fluorine can be detected more timely and accurately without manual intervention, and the fluorine lack detection efficiency is higher.
Specifically, in the above embodiment of the present invention, the first temperature sensor may be disposed at an indoor coil of the air conditioner to be detected, the second temperature sensor is disposed in an indoor environment, and the third temperature sensor is disposed in an outdoor environment, and after the compressor of the air conditioner to be detected continuously operates at an actual operating frequency not less than a preset frequency for a first set time, the first temperature parameter of the indoor coil of the air conditioner to be detected, the second temperature parameter of the indoor environment, and the third temperature parameter of the outdoor environment may be respectively collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.
When the air conditioner to be detected performs refrigeration, the first temperature parameter of the indoor coil is usually smaller than the second temperature parameter of the indoor environment, the second temperature parameter of the indoor environment is usually smaller than the third temperature parameter of the outdoor environment, and when the compressor of the air conditioner to be detected continuously operates at a high working frequency, if the difference between the second temperature parameter and the first temperature parameter is small (smaller than a first preset threshold value), and the difference between the third temperature parameter and the second temperature parameter is small (smaller than a second preset threshold value), it is indicated that the air conditioner may lack fluorine. When the air conditioner heats, the first temperature parameter of the indoor coil is usually larger than the second temperature parameter of the indoor environment, and the second temperature parameter of the indoor environment is larger than the third temperature parameter of the outdoor environment, when the compressor of the air conditioner to be detected continuously operates at a high working frequency, if the absolute value of the difference between the second temperature parameter and the first temperature parameter is small (smaller than a first preset threshold value), and the difference between the third temperature parameter and the second temperature parameter is small, namely the absolute value of the difference between the third temperature parameter and the second temperature parameter is also relatively small (smaller than a second preset threshold value), it is indicated that the air conditioner may lack fluorine.
It should be understood that the magnitude of the first preset threshold and the second preset threshold may be determined through a corresponding number of sample analyses in conjunction with the model and the rule of the air conditioner.
In an embodiment of the present invention, the at least one operating parameter includes one or more of the following operating parameters: the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor and the opening degree of the electronic expansion valve. After receiving the working parameters, the MCU of the air conditioner to be detected can adjust the working frequency, the swing angle, the refrigeration temperature of the compressor, the opening of the electronic expansion valve, etc. of the air conditioner to be detected according to the working parameters, so as to control the air conditioner to be detected to operate in a target state.
In an embodiment of the present invention, an implementation manner of the step 104 includes:
calculating a third absolute value of the difference between the average temperature of the coil and the average temperature in the room;
determining the residual proportion of the residual Freon in the air conditioner to be detected according to the third absolute value and the average running current;
judging whether the residual proportion is smaller than a third preset threshold value or not, and if so, determining that the air conditioner to be detected is lack of fluorine; otherwise, determining that the air conditioner to be detected is not lack of fluorine.
In the above embodiment of the present invention, by calculating the third absolute value of the difference between the average temperature of the coil and the average indoor temperature, the remaining proportion of the residual freon in the air conditioner to be detected can be determined according to the third absolute value and the average operating current, and whether the air conditioner to be detected lacks of freon is accurately determined by determining the determined remaining proportion and the third preset threshold.
Specifically, in order to determine the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average operating current, in an embodiment of the present invention, before determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average operating current, the method further includes:
constructing a query table, wherein the query table stores at least one piece of record data, and each piece of record data carries a scale parameter, a current threshold range and a temperature threshold range respectively;
then, the determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average operating current includes:
determining target record data from the query table according to the third absolute value and the average operating current, wherein the third absolute value is within a current temperature threshold range carried by the target record data, and the average operating current is within a current threshold range carried by the target record data;
and determining the current proportion parameter carried in the target record data as the residual proportion of the residual Freon in the air conditioner to be detected.
In the above embodiments of the present invention, a lookup table may be constructed according to a corresponding number of sample analyses. For example, n sample air conditioners are controlled to operate in the target operating state, the proportion of the residual freon in each sample air conditioner is m%, and after each sample air conditioner operates in the target operating state for a second set time period, the average operating current of the compressor of each sample air conditioner in the third set time period is detected as follows: i is1、I2…InAnd the third absolute values respectively corresponding to the sample air conditioners are obtained in sequence as follows: p1、P2…PnThen can be according to I1、I2…InForming a current thresholdA current threshold range with a minimum value of I1、I2…InAn average operating current with a minimum value, the maximum value of the current threshold range being I1、I2…InAn average operating current with the largest median value; at the same time, according to P1、P2…PnForming a temperature threshold range with minimum value P1、P2…PnA third absolute value with the smallest median value, the maximum value of the temperature threshold range being P1、P2…PnA third absolute value with the largest median value; then, m% is used as a proportion parameter, and is combined with the formed current threshold range and temperature threshold range to form a piece of recording data, and the recording data is written into a lookup table.
In an embodiment of the present invention, before the determining that the air conditioner to be detected is fluorine-deficient, the method further includes: setting at least one fluorine-lacking grade, wherein each fluorine-lacking grade corresponds to a proportional threshold value;
then, after the determining that the air conditioner to be detected is lack of fluorine, the method further comprises:
determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade;
and generating early warning information carrying the current fluorine-lacking grade and the residual proportion, and sending the early warning information to an external intelligent terminal.
In the embodiment of the invention, because the residual proportion of the residual Freon in the air conditioner is different, the influence on the running state of the air conditioner is different, the current Freon lacking grade corresponding to the air conditioner to be detected is determined according to the residual proportion of the residual Freon in the air conditioner to be detected by setting a plurality of Freon lacking grades when the condition that the air conditioner to be detected is lack of Freon is determined, the early warning information carrying the current Freon lacking grade and the residual proportion is generated and provided for a user through the intelligent terminal, and the specific condition of the residual Freon in the air conditioner can be informed to the user in time, so that the user can perform corresponding treatment on the air conditioner in time.
For example, setting a fluorine deficiency rating includes: the method comprises the steps of slightly lacking fluorine, moderately lacking fluorine and seriously lacking fluorine, wherein proportional thresholds corresponding to all fluorine lacking grades are sequentially 'not less than 60%', 'not less than 30%, and less than 60%', and 'less than 30%', when the residual proportion of the air conditioner is detected to be 25%, the fluorine lacking grade of the air conditioner can be determined to be 'seriously lacking fluorine', then early warning information carrying 'seriously lacking fluorine' and '25%' is generated, the early warning information is sent to an external intelligent terminal, and a user can timely know the fluorine lacking condition of the air conditioner through the intelligent terminal. By taking the example that the user who holds the intelligent terminal is the after-sales personnel who wait to detect the air conditioner, this early warning information can also carry the corresponding sign of waiting to detect the air conditioner to after-sales personnel receive this early warning information, initiatively go to the home service, carry out the fluoridation in order to ensure that this waits to detect the air conditioner can normal operating, promote user experience to this.
In order to more clearly illustrate the technical solutions and advantages of the present invention, for example, when a plurality of pieces of recorded data are obtained by analyzing a corresponding number of samples in advance in combination with an actual service scenario and the obtained recorded data are written into a constructed lookup table, the fluorine deficiency detection of the air conditioner to be detected of the electronic expansion valve type is implemented, as shown in fig. 2, the following steps may be specifically included:
step 201, a query table is constructed, and the query table stores at least one piece of record data.
Here, each of the log data carries a scale parameter, a current threshold range, and a temperature threshold range, respectively.
The scaling parameter, current threshold range, and temperature threshold range carried in the same log data may be determined by analyzing a corresponding number of sample air conditioners. For example, n samples of air conditioners can be controlled to operate at a target operating state, and each sampleThe proportion of the residual Freon in the air conditioner is m%, and after each sample air conditioner operates in the target working state for a second set time, the average operating current of the compressor of each sample air conditioner in the third set time is detected as follows in sequence: i is1、I2…InAnd the third absolute values respectively corresponding to the sample air conditioners are obtained in sequence as follows: p1、P2…PnThen can be according to I1、I2…InForming a current threshold range with a minimum value of I1、I2…InAn average operating current with a minimum value, the maximum value of the current threshold range being I1、I2…InAn average operating current with the largest median value; at the same time, according to P1、P2…PnForming a temperature threshold range with minimum value P1、P2…PnA third absolute value with the smallest median value, the maximum value of the temperature threshold range being P1、P2…PnA third absolute value with the largest median value; then, m% is used as a proportion parameter, and is combined with the formed current threshold range and temperature threshold range to form a piece of recording data, and the recording data is written into a lookup table.
Step 202, at least one monitoring grade is set, and a ratio threshold corresponding to each monitoring grade is set.
And 203, monitoring the actual working frequency of the compressor of the air conditioner to be detected in real time.
Step 204, judging whether the detected actual working frequency is not less than a preset frequency; if so, go to step 205; otherwise, step 203 is executed.
Step 205, recording the working time length corresponding to the continuous operation of the air conditioner to be detected at the actual working frequency not less than the preset splicing rate.
Step 206, judging whether the working time length reaches a first set time length, if so, executing step 207; otherwise, step 205 is performed.
And step 207, collecting a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment.
In step 208, a first absolute value of the difference between the second temperature parameter and the first temperature parameter is calculated, and a second absolute value of the difference between the third temperature parameter and the second temperature parameter is calculated.
And 209, when the first absolute value is smaller than a first preset threshold value and the second absolute value is smaller than a second preset threshold value, sending a trigger instruction carrying at least one working parameter to the MCU of the air conditioner to be detected.
In the embodiment of the present invention, the at least one operating parameter includes, but is not limited to, one or more of the following operating parameters: the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor and the opening degree of the electronic expansion valve.
Taking at least one working parameter received by the MCU of the air conditioner to be detected including the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor, and the opening of the electronic expansion valve as an example, the MCU can adjust the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor, the opening of the electronic expansion valve, and the like of the air conditioner to be detected according to the received working parameters, so as to control the air conditioner to be detected to operate in a target working state.
And step 210, after the air conditioner to be detected operates in the target working state for a second set time, continuously monitoring the operating current of the compressor, the ambient temperature of the indoor environment and the indoor judged coil temperature.
And step 211, after the monitoring time period reaches a third set time period, determining the average running current of the compressor in a third set market, the average temperature of the indoor coil in the third set time period and the average indoor temperature of the indoor environment in the third set time period according to the monitoring result.
A third absolute value of the difference between the average temperature of the coil and the average temperature in the room is calculated 212.
And step 213, determining target record data from the query table according to the third absolute value and the average operating current.
And the third absolute value is within the current temperature threshold range carried by the target record data, and the average running current is within the current threshold range carried by the target record data.
For example, taking the third absolute value including 3 ℃ and the average operating current including 8A as an example, when there is one piece of recorded data in the lookup table: the proportion parameter is 25 percent, the current threshold range is 7.5A-8.5A, and the temperature threshold range is 2.9-3.1 ℃. It is determined that the piece of record data is the target record data. It should be understood that, when the lookup table stores the record data, the organization structure of the record data can be reasonably set in combination with the actual business scenario.
It should be understood that the above-mentioned parameters in the record data are only examples, and the parameters in each record data should be specifically determined through a corresponding number of sample analyses in an actual service scenario.
And step 214, determining the current proportion parameter carried in the determined target record data as the residual proportion of the residual Freon in the air conditioner to be detected.
When the determined target record data is: the proportion parameter is 25%, the current threshold range is 7.5-8.5A, the temperature threshold range is 2.9-3.1 ℃, and then the residual proportion of the residual Freon in the air conditioner to be detected is determined to be 25%.
Step 215, judging whether the determined residual proportion is smaller than a third preset threshold value, if so, executing step 219; otherwise, step 216 is performed.
And step 216, determining that the air conditioner to be detected is fluorine-deficient.
And step 217, determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the determined residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade.
For example, setting a fluorine deficiency rating includes: the air conditioner is characterized by comprising a light fluorine deficiency stage, a medium fluorine deficiency stage and a serious fluorine deficiency stage, wherein proportional thresholds corresponding to the fluorine deficiency stages are sequentially 'not less than 60%', 'not less than 30%,' less than 60%, 'less than 30%,' and 'less than 30%', and when the determined residual proportion is 25%, the fluorine deficiency stage of the air conditioner can be determined to be 'serious fluorine deficiency'.
And step 218, generating early warning information carrying the current fluorine-lacking grade and the residual proportion, and sending the generated early warning information to an external intelligent terminal.
Step 219, determining that the air conditioner to be detected is not lack of fluorine.
Through the steps of the embodiment of the invention, whether the air conditioner to be detected is lack of fluorine can be timely and accurately detected without manual intervention; meanwhile, when the air conditioner to be detected is short of fluorine, the residual proportion of residual Freon in the air conditioner to be detected and the fluorine-lacking grade of the air conditioner to be detected can be determined, and then early warning information carrying the residual proportion and the fluorine-lacking grade is generated and provided for a user through an intelligent terminal, so that the user can timely and accurately know the fluorine-lacking condition of the air conditioner to be detected and carry out corresponding processing.
As shown in fig. 3, an embodiment of the present invention provides a fluorine deficiency detection apparatus for an air conditioner, including:
the first parameter processing module 301 is configured to acquire a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment, and a third temperature parameter of an outdoor environment after a compressor of the air conditioner to be detected continuously operates at an actual operating frequency not less than a preset frequency for a first set time period;
the state control module 302 is configured to send a trigger instruction carrying at least one working parameter to a micro control unit MCU of the air conditioner to be detected when a first absolute value of a difference between the second temperature parameter and the first temperature parameter is smaller than a first preset threshold, and a second absolute value of a difference between the third temperature parameter and the second temperature parameter is smaller than a second preset threshold, so that the air conditioner to be detected operates in a target working state according to each working parameter;
the second parameter processing module 303 is configured to, after the air conditioner to be detected operates in the target operating state for a second set time period, obtain an average operating current of a compressor of the air conditioner to be detected within a third set time period, an average temperature of the indoor coil within the third set time period, and an average indoor temperature of an indoor environment within the third set time period;
a determining module 304, configured to determine whether the air conditioner to be detected is fluorine-deficient according to the average temperature of the coil, the average indoor temperature, and the average operating current.
As shown in fig. 4, in an embodiment of the present invention, the determining module 304 includes: a calculation unit 3041, a determination unit 3042, and a judgment processing unit 3043; wherein,
the calculating unit 3041, configured to calculate a third absolute value of a difference between the average temperature of the coil and the average temperature in the room;
the determining unit 3042, configured to determine a remaining proportion of the remaining freon in the air conditioner to be tested according to the third absolute value and the average operating current;
the judgment processing unit 3043 is configured to judge whether the remaining proportion is smaller than a third preset threshold, and if so, determine that the air conditioner to be detected is fluorine-deficient; otherwise, determining that the air conditioner to be detected is lack of fluorine.
As shown in fig. 5, in an embodiment of the present invention, the method further includes: a lookup table 501; wherein,
the lookup table 501 is configured to store at least one piece of record data, where each piece of record data carries a scale parameter, a current threshold range, and a temperature threshold range;
the determining unit 3042 is configured to determine target record data from the lookup table according to the third absolute value and the average operating current, where the third absolute value is located within a current temperature threshold range carried by the target record data, and the average operating current is located within a current threshold range carried by the target record data; and determining the current proportion parameter carried in the target recording data as the residual proportion of the residual Freon in the air conditioner to be detected.
As shown in fig. 6, in an embodiment of the present invention, the method further includes: a setting module 601, a grade determining module 602 and an information feedback module 603; wherein,
the setting module 601 is configured to set at least one fluorine-deficient level, where each fluorine-deficient level corresponds to a proportional threshold;
the grade determining module 602 is configured to determine, according to the remaining proportion and a proportion threshold value corresponding to each fluorine-deficient grade, a current fluorine-deficient grade corresponding to the air conditioner to be detected;
the information feedback module 603 is configured to generate early warning information carrying the current fluorine-deficient grade and the remaining proportion, and send the early warning information to an external intelligent terminal.
As shown in fig. 7, an embodiment of the present invention provides an air conditioning system, including:
an air conditioner 701 and a fluorine lack detection device 702 of the air conditioner provided by any embodiment of the invention.
Because the information interaction, execution process, and other contents between the units in the device are based on the same concept as the method embodiment of the present invention, specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
In summary, the embodiments of the present invention have at least the following advantages:
1. in one embodiment of the invention, after a compressor of an air conditioner to be detected continuously operates at an actual working frequency not less than a preset frequency for a first set time period, acquiring a first temperature parameter of an indoor coil, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment, and when the absolute value of the difference value between the second temperature parameter and the first temperature parameter is less than a first preset threshold value and the absolute value of the difference value between the third temperature parameter and the second temperature parameter is less than a second preset threshold value, indicating that the air conditioner is likely to lack fluorine; at this time, in order to eliminate the influence of environmental factors and further verify whether the air conditioner lacks fluorine, a trigger instruction carrying at least one working parameter may be sent to the MCU of the air conditioner to be detected, so that the air conditioner to be detected operates in the target working state according to each working parameter, after the air conditioner to be detected operates in the target working state for a second set time period, the average operating current of the compressor of the air conditioner to be detected within a third set time period, the average temperature of the coil of the indoor coil within the third set time period, and the indoor average temperature of the indoor environment within the third set time period may be obtained, and then whether the air conditioner to be detected lacks fluorine is determined according to the average temperature of the coil, the indoor average temperature, and the average operating current. In conclusion, in the technical scheme provided by the invention, whether the air conditioner is lack of fluorine can be detected more timely and accurately without manual intervention, and the fluorine lack detection efficiency is higher.
2. In an embodiment of the present invention, by calculating a third absolute value of a difference between the average temperature of the coil and the average indoor temperature, a remaining proportion of the remaining freon in the air conditioner to be detected can be determined according to the third absolute value and the average operating current, and whether the air conditioner to be detected lacks of freon is accurately determined by determining the determined remaining proportion and a third preset threshold.
3. In one embodiment of the invention, by setting a plurality of fluorine-lacking grades, when the air conditioner to be detected is determined to be lack of fluorine, the current fluorine-lacking grade corresponding to the air conditioner to be detected is determined according to the residual proportion of the residual Freon in the air conditioner to be detected, the early warning information carrying the current fluorine-lacking grade and the residual proportion is generated and provided for a user through an intelligent terminal, and the specific condition of the residual Freon in the air conditioner can be informed to the user in time, so that the user can perform corresponding treatment on the air conditioner in time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A fluorine deficiency detection method for an air conditioner is characterized by comprising the following steps:
after a compressor of an air conditioner to be detected continuously operates at an actual working frequency which is not less than a preset frequency for a first set time, acquiring a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment;
when a first absolute value of a difference value between a second temperature parameter and the first temperature parameter is smaller than a first preset threshold value, and a second absolute value of a difference value between a third temperature parameter and the second temperature parameter is smaller than a second preset threshold value, sending a trigger instruction carrying at least one working parameter to a Micro Control Unit (MCU) of the air conditioner to be detected so that the air conditioner to be detected runs in a target working state according to each working parameter;
after the air conditioner to be detected operates in the target working state for a second set time, acquiring the average operating current of a compressor of the air conditioner to be detected within a third set time, the average temperature of the indoor coil within the third set time and the average indoor temperature of the indoor environment within the third set time;
determining whether the air conditioner to be detected is lack of fluorine or not according to the average temperature of the coil, the average indoor temperature and the average running current;
determining whether the air conditioner to be detected is lack of fluorine according to the average temperature of the coil, the average indoor temperature and the average running current, wherein the determining step comprises the following steps:
calculating a third absolute value of the difference between the average temperature of the coil and the average temperature in the room;
determining the residual proportion of the residual Freon in the air conditioner to be detected according to the third absolute value and the average running current;
judging whether the residual proportion is smaller than a third preset threshold value or not, and if so, determining that the air conditioner to be detected is lack of fluorine; otherwise, determining that the air conditioner to be detected is not lack of fluorine.
2. The method of claim 1,
before determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average running current, the method further comprises the following steps:
constructing a query table, wherein the query table stores at least one piece of record data, and each piece of record data carries a scale parameter, a current threshold range and a temperature threshold range respectively;
then, the determining the remaining proportion of freon remaining in the air conditioner to be tested according to the third absolute value and the average operating current includes:
determining target record data from the query table according to the third absolute value and the average operating current, wherein the third absolute value is within a current temperature threshold range carried by the target record data, and the average operating current is within a current threshold range carried by the target record data;
and determining the current proportion parameter carried in the target record data as the residual proportion of the residual Freon in the air conditioner to be detected.
3. The method of claim 1,
before the determining that the air conditioner to be detected is lack of fluorine, the method further comprises the following steps: setting at least one fluorine-lacking grade, wherein each fluorine-lacking grade corresponds to a proportional threshold value;
then, after the determining that the air conditioner to be detected is lack of fluorine, the method further comprises:
determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade;
and generating early warning information carrying the current fluorine-lacking grade and the residual proportion, and sending the early warning information to an external intelligent terminal.
4. The method according to any one of claims 1 to 3,
the at least one operating parameter includes one or more of the following individual operating parameters: the working frequency of the compressor, the angle of the swing blade, the refrigeration temperature of the compressor and the opening degree of the electronic expansion valve.
5. An air conditioner lacks fluorine detection device which characterized in that includes:
the first parameter processing module is used for acquiring a first temperature parameter of an indoor coil of the air conditioner to be detected, a second temperature parameter of an indoor environment and a third temperature parameter of an outdoor environment after a compressor of the air conditioner to be detected continuously operates at an actual working frequency which is not less than a preset frequency for a first set time;
the state control module is used for sending a trigger instruction carrying at least one working parameter to a Micro Control Unit (MCU) of the air conditioner to be detected when a first absolute value of a difference value between the second temperature parameter and the first temperature parameter is smaller than a first preset threshold value and a second absolute value of a difference value between the third temperature parameter and the second temperature parameter is smaller than a second preset threshold value, so that the air conditioner to be detected runs in a target working state according to each working parameter;
the second parameter processing module is used for acquiring the average operating current of the compressor of the air conditioner to be detected within a third set time period, the average temperature of the indoor coil within the third set time period and the average indoor temperature of the indoor environment within the third set time period after the air conditioner to be detected operates in the target working state for a second set time period;
the determining module is used for determining whether the air conditioner to be detected is lack of fluorine or not according to the average temperature of the coil, the average indoor temperature and the average running current;
the determining module includes: a calculation unit, a determination unit and a judgment processing unit; wherein,
the calculating unit is used for calculating a third absolute value of the difference between the average temperature of the coil and the average temperature in the room;
the determining unit is used for determining the residual proportion of the residual Freon in the air conditioner to be detected according to the third absolute value and the average running current;
the judgment processing unit is used for judging whether the residual proportion is smaller than a third preset threshold value or not, and if yes, determining that the air conditioner to be detected is lack of fluorine; otherwise, determining that the air conditioner to be detected is lack of fluorine.
6. The apparatus of claim 5,
further comprising: querying the table; wherein,
the query table is used for storing at least one piece of record data, and each piece of record data carries a scale parameter, a current threshold range and a temperature threshold range respectively;
the determining unit is configured to determine target record data from the lookup table according to the third absolute value and the average operating current, where the third absolute value is within a current temperature threshold range carried by the target record data, and the average operating current is within a current threshold range carried by the target record data; and determining the current proportion parameter carried in the target recording data as the residual proportion of the residual Freon in the air conditioner to be detected.
7. The apparatus of claim 5,
further comprising: the system comprises a setting module, a grade determining module and an information feedback module; wherein,
the setting module is used for setting at least one fluorine-lacking grade, and each fluorine-lacking grade corresponds to a proportion threshold value respectively;
the grade determining module is used for determining the current fluorine-lacking grade corresponding to the air conditioner to be detected according to the residual proportion and the proportion threshold value corresponding to each fluorine-lacking grade;
and the information feedback module is used for generating early warning information carrying the current fluorine-lacking grade and the residual proportion and sending the early warning information to an external intelligent terminal.
8. An air conditioning system, comprising:
an air conditioner, and the fluorine deficiency detection device of the air conditioner as claimed in any one of claims 5 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379249.1A CN107062559B (en) | 2017-05-25 | 2017-05-25 | A kind of air conditioner lacks fluorine detection method, device and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379249.1A CN107062559B (en) | 2017-05-25 | 2017-05-25 | A kind of air conditioner lacks fluorine detection method, device and air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107062559A CN107062559A (en) | 2017-08-18 |
| CN107062559B true CN107062559B (en) | 2019-04-30 |
Family
ID=59611057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379249.1A Active CN107062559B (en) | 2017-05-25 | 2017-05-25 | A kind of air conditioner lacks fluorine detection method, device and air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107062559B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028456B (en) * | 2018-08-30 | 2021-04-30 | 海信（山东）空调有限公司 | Refrigerant leakage detection method and device |
| CN109307349B (en) * | 2018-08-30 | 2021-05-25 | 海信（山东）空调有限公司 | Refrigerant leakage detection method and device |
| CN110940044B (en) * | 2018-09-21 | 2021-05-18 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner |
| CN111397135A (en) * | 2020-04-02 | 2020-07-10 | 青岛海尔空调电子有限公司 | Fluorine-lack detection control method of air conditioner and air conditioner |
| CN111473470A (en) * | 2020-04-22 | 2020-07-31 | 四川长虹空调有限公司 | System and method for judging rapid leakage of refrigerant of variable-frequency refrigeration system |
| CN115111707B (en) * | 2022-06-23 | 2024-06-18 | 北京小米移动软件有限公司 | Air conditioner fluorine deficiency detection method, device, medium and chip |
| CN115111706B (en) * | 2022-06-23 | 2024-05-24 | 北京小米移动软件有限公司 | Air conditioner fluorine deficiency detection method, device, medium and chip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737448A (en) * | 2005-06-20 | 2006-02-22 | 珠海格力电器股份有限公司 | Air conditioner with refrigerant shortage and system blockage fault diagnosis function and diagnosis method |
| CN101929719A (en) * | 2010-08-27 | 2010-12-29 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
| KR20110030961A (en) * | 2009-09-18 | 2011-03-24 | 엘지전자 주식회사 | Air conditioner and operating method thereof |
| CN103235225A (en) * | 2013-04-25 | 2013-08-07 | 青岛海尔空调电子有限公司 | Method and device for detecting fluorine-deficient operation of variable frequency air conditioner |
-
2017
- 2017-05-25 CN CN201710379249.1A patent/CN107062559B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737448A (en) * | 2005-06-20 | 2006-02-22 | 珠海格力电器股份有限公司 | Air conditioner with refrigerant shortage and system blockage fault diagnosis function and diagnosis method |
| KR20110030961A (en) * | 2009-09-18 | 2011-03-24 | 엘지전자 주식회사 | Air conditioner and operating method thereof |
| CN101929719A (en) * | 2010-08-27 | 2010-12-29 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
| CN103235225A (en) * | 2013-04-25 | 2013-08-07 | 青岛海尔空调电子有限公司 | Method and device for detecting fluorine-deficient operation of variable frequency air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107062559A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107062559B (en) | A kind of air conditioner lacks fluorine detection method, device and air-conditioning system | |
| CN109323369B (en) | Air conditioner and defrosting method and device thereof | |
| CN105091247B (en) | air conditioner dehumidification control method and device | |
| US10498585B2 (en) | Sensor data analytics and alarm management | |
| CN106642584A (en) | Air conditioner operation control method and device | |
| CN109114742B (en) | Control method, control device, air conditioner, remote control terminal, server and storage medium | |
| CN107120794B (en) | Air conditioner operation condition adjusting method and air conditioner | |
| CN110332671B (en) | Control method, device and equipment of indoor unit and air conditioning system | |
| CN109074066B (en) | Method for optimizing life cycle of filter and system for monitoring ventilation system | |
| CN105629947B (en) | Home equipment monitoring method, home equipment monitoring device and terminal | |
| CN106958922A (en) | A kind of method and system for detecting the new blower fan screen net life-span | |
| CN105116870A (en) | Fault analysis method, device and system of air conditioning unit | |
| JP2012134837A (en) | Home electric appliance maintenance management device and home electric appliance maintenance system | |
| CN103577662A (en) | Method and device for determining electricity consumption condition or environmental condition of household electrical appliances | |
| EP3023953A1 (en) | System and method of airflow monitoring for variable airflow environments | |
| CN109916047A (en) | Air conditioner automatically cleaning control method and air conditioner | |
| WO2019214230A1 (en) | Air conditioner defrosting method and device | |
| CN110887153B (en) | Method and system for detecting operation effect of air conditioner and air conditioner | |
| CN109869868B (en) | Air conditioner multi-split air conditioner refrigerant shortage detection method and device and air conditioner | |
| WO2023246122A1 (en) | Air conditioner fault detection method and apparatus, and air conditioner and electronic device | |
| US20170255864A1 (en) | Systems and Methods Thereof for Determination of a Device State Based on Current Consumption Monitoring and Machine Learning Thereof | |
| CN111981633A (en) | Air conditioner exception handling method, device and system and server | |
| CN113324181B (en) | Intelligent air supply management method and system | |
| CN109724213B (en) | Air conditioner and control method thereof | |
| CN108386977B (en) | Air conditioning equipment monitoring and analyzing system and method based on big data |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 621050 No. 303 Jiuzhou Road, Fucheng District, Mianyang, Sichuan. Patentee after: Sichuan Hongmei Intelligent Technology Co., Ltd. Address before: 621050 No. 303 Jiuzhou Road, Fucheng District, Mianyang, Sichuan. Patentee before: Mianyang MeiLing Software Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |