CN107341520B - Judgment method, server and the computer readable storage medium of breakdown of refrigerator - Google Patents

Judgment method, server and the computer readable storage medium of breakdown of refrigerator Download PDF

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Publication number
CN107341520B
CN107341520B CN201710557717.XA CN201710557717A CN107341520B CN 107341520 B CN107341520 B CN 107341520B CN 201710557717 A CN201710557717 A CN 201710557717A CN 107341520 B CN107341520 B CN 107341520B
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refrigerator
temperature
module
server
leakage
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CN107341520A (en
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曾文亮
陈琦
龙榜
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Midea Group Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/24Classification techniques
    • G06F18/241Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
    • G06F18/2411Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on the proximity to a decision surface, e.g. support vector machines
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/005Testing of complete machines, e.g. washing-machines or mobile phones
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/21Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
    • G06F18/214Generating training patterns; Bootstrap methods, e.g. bagging or boosting
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/285Selection of pattern recognition techniques, e.g. of classifiers in a multi-classifier system

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Abstract

The invention discloses a kind of judgment method of breakdown of refrigerator, refrigerator includes storeroom, evaporator, the first temperature sensor and second temperature sensor.Judgment method includes: to obtain the difference of multiple first temperature values and multiple second temperature values and preset temperature value;Multiple first temperature values and multiple differences are handled using support vector machine classifier, and whether the first preset ratio is greater than with the ratio for judging that leakage of refrigerant failure occurs in refrigerator;When being greater than the first preset ratio with the ratio for occurring leakage of refrigerant failure in refrigerator, judge that leakage of refrigerant failure occurs in refrigerator.In addition, the invention also discloses a kind of servers and a kind of computer readable storage medium.Judgment method, server and computer readable storage medium of the invention judges whether refrigerator leakage of refrigerant failure occurs using support vector machine classifier, so as to help Maintenance Engineer to understand failure cause in advance, spare part is brought all, on-site maintenance rate of Maintenance Engineer is effectively improved.

Description

Judgment method, server and the computer readable storage medium of breakdown of refrigerator
Technical field
The present invention relates to household electrical appliance, in particular to a kind of judgment method of breakdown of refrigerator, server and computer-readable Storage medium.
Background technique
Conventional refrigerator has been faced with the bottleneck of development at present, and product technology shortage of standard, Market Consumer cognition degree are low The development of conventional refrigerator is restrict with the problems such as product price is high, experience is poor, and the ever-increasing new demand of user forces refrigerator Industry makes the transition to intelligent direction.Big inconvenience will be brought to daily life when household electrical appliance break down, Along with the fast development of household electric appliances, electric appliances service industry also achieves biggish progress, but there are still Maintenance Engineers Failure cause can not be known in advance, can not bring all spare part situation.Leakage of refrigerant is refrigerator most common failure, and repairing such failure needs Want specific purpose tool such as spare part welding gun, vacuum pump etc., if can not know failure cause in advance, generally require it is secondary visit, reduce Primary successfully maintenance rate of visiting.
Although current intelligent refrigerator quantity steeply rises, refrigerator intellectual product only has the fault code of fixed type Upload function, not can be carried out fault diagnosis makes Maintenance Engineer's more clear failure reason, completes once to visit and successfully repair.At present Application of the fault diagnosis on household electrical appliances only has persistent fault code, is only limited to sensor fault, it is simple that door opens time-out etc. Failure, there is presently no the online test methods for being directed to breakdown of refrigeration system especially leakage of refrigerant, it means that refrigerator exists The fault detection of line leakage of refrigerant is very valuable and necessary.
Summary of the invention
Embodiments of the present invention provide judgment method, server and the computer-readable storage medium of a kind of breakdown of refrigerator Matter.
A kind of judgment method of breakdown of refrigerator of embodiments of the present invention, the refrigerator include storeroom and evaporator, The refrigerator includes the first temperature sensor for detecting the first temperature value of the evaporator and for detecting the storage The second temperature sensor of the second temperature value of room, the judgment method include:
Obtain multiple first temperature values and corresponding multiple second temperature values;
Calculate the difference of each the second temperature value and preset temperature value;
Multiple first temperature values and corresponding multiple differences are handled using support vector machine classifier to judge Whether the ratio that leakage of refrigerant failure occurs in the refrigerator is greater than the first preset ratio;With
When the ratio that leakage of refrigerant failure occurs in the refrigerator is greater than first preset ratio, the refrigerator is judged There is leakage of refrigerant failure.
In some embodiments, the judgment method includes:
Using the support vector machine classifier handle multiple first temperature values and corresponding multiple differences with Judge that the refrigerator belongs to the ratios of normal conditions and whether is greater than the second preset ratio;With
When the ratio that the refrigerator belongs to normal conditions is greater than second preset ratio, judge that the refrigerator belongs to just Reason shape.
In some embodiments, the judgment method includes:
Using the support vector machine classifier handle multiple first temperature values and corresponding multiple differences with Whether the ratio for judging that other failures occurs in the refrigerator is greater than third preset ratio;With
When the ratio that other failures occurs in the refrigerator is greater than the third preset ratio, judge that it occurs in the refrigerator His failure.
In some embodiments, described to obtain the multiple first temperature value and corresponding multiple second temperature Angle value includes:
Multiple time points in preset duration obtain and cache multiple first temperature values and multiple second temperature Angle value.
In some embodiments, the judgment method includes:
Acquisition has been marked as the refrigerator and corresponding multiple first temperature values of leakage of refrigerant failure and more occurs A difference;
There are corresponding multiple first temperature values of leakage of refrigerant failure and more according to the refrigerator is had been marked as A difference training support vector machine classifier.
In some embodiments, the refrigerator includes for the communication module with server communication, and the acquisition is There are corresponding multiple first temperature values of leakage of refrigerant failure labeled as the refrigerator and multiple differences include:
It is transmitted between the refrigerator and the server using the communication module and has been marked as the refrigerator appearance Corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences.
In some embodiments, the judgment method includes:
The conclusion that leakage of refrigerant failure occurs in the refrigerator is pushed into default terminal.
In some embodiments, the storeroom includes freezing chamber, temperature-changing chamber and refrigerating chamber, and the evaporator includes cold Freeze defrosting evaporator and refrigeration defrosting evaporator, first temperature value includes the first evaporator of the freezing defrosting evaporator Second evaporator temperature values of temperature value and the refrigeration defrosting evaporator, the second temperature value include the of the freezing chamber The third room temperature angle value of one room temperature angle value, the second Room temperature value of the temperature-changing chamber and the refrigerating chamber.
A kind of server of embodiments of the present invention, it is described for judging whether refrigerator leakage of refrigerant failure occurs Refrigerator includes storeroom and evaporator, and the refrigerator includes that the first temperature for detecting the first temperature value of the evaporator passes The second temperature sensor of sensor and the second temperature value for detecting the storeroom, the server include:
First obtains module, and the first acquisition module is for obtaining multiple first temperature values and corresponding multiple institutes State second temperature value;
Computing module, the computing module are used to calculate the difference of each the second temperature value and preset temperature value;
First processing module, the first processing module are used to utilize support vector machine classifier processing multiple described first Whether temperature value and corresponding multiple differences are greater than first with the ratio for judging that leakage of refrigerant failure occurs in the refrigerator Preset ratio;With
First judgment module, the ratio that the first judgment module is used to leakage of refrigerant failure occur in the refrigerator are big When first preset ratio, judge that leakage of refrigerant failure occurs in the refrigerator.
In some embodiments, the server includes:
Second processing module, the Second processing module are used to handle using the support vector machine classifier multiple described Whether to be greater than second pre- to judge to belong to the ratios of normal conditions by the refrigerator for first temperature value and corresponding multiple differences If ratio;With
Second judgment module, second judgment module are used to be greater than in the ratio that the refrigerator belongs to normal conditions described When the second preset ratio, judge that the refrigerator belongs to normal conditions.
In some embodiments, the server includes:
Third processing module, the third processing module are used to handle using the support vector machine classifier multiple described Whether to be greater than third pre- to judge the ratios of other failures occur by the refrigerator for first temperature value and corresponding multiple differences If ratio;With
Third judgment module, the ratio that the third judgment module is used to other failures occur in the refrigerator are greater than described When third preset ratio, judge that other failures occurs in the refrigerator.
In some embodiments, multiple time points of the first acquisition module in preset duration obtain and delay Deposit multiple first temperature values and multiple second temperature values.
In some embodiments, the server includes:
Second obtains module, and the second acquisition module has been marked as the refrigerator for acquisition and leakage of refrigerant occurs Corresponding multiple first temperature values of failure and multiple differences;
Training module, the training module have been marked as the refrigerator for basis and leakage of refrigerant failure correspondence occur Multiple first temperature values and multiple differences training support vector machine classifier.
In some embodiments, the refrigerator includes for the communication module with the server communication described second It obtains module and has been marked as the refrigerator for transmitting between the refrigerator and the server using the communication module There is corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences.
In some embodiments, the server includes:
Pushing module, the pushing module are default for pushing to the conclusion that leakage of refrigerant failure occurs in the refrigerator Terminal.
In some embodiments, the storeroom includes freezing chamber, temperature-changing chamber and refrigerating chamber, and the evaporator includes cold Freeze defrosting evaporator and refrigeration defrosting evaporator, first temperature value includes the first evaporator of the freezing defrosting evaporator Second evaporator temperature values of temperature value and the refrigeration defrosting evaporator, the second temperature value include the of the freezing chamber The third room temperature angle value of one room temperature angle value, the second Room temperature value of the temperature-changing chamber and the refrigerating chamber.
A kind of server of embodiments of the present invention, comprising:
One or more processors;
Memory;And
One or more programs wherein one or more of programs are stored in the memory, and are configured It is executed by one or more of processors, described program is used to execute the instruction of the judgment method.
A kind of computer readable storage medium of embodiments of the present invention, including the computer being used in combination with server Program, the computer program can be executed by processor to complete the judgment method.
Judgment method, server and the computer readable storage medium of embodiment of the present invention utilize support vector cassification Device judges whether refrigerator leakage of refrigerant failure occurs, so as to help Maintenance Engineer to understand failure cause in advance, brings all Spare part effectively improves on-site maintenance rate of Maintenance Engineer.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Fig. 2 is the refrigerator of embodiment of the present invention and the connection schematic diagram of server;
Fig. 3 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Fig. 4 is the module diagram of the server of embodiment of the present invention;
Fig. 5 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Fig. 6 is another module diagram of the server of embodiment of the present invention;
Fig. 7 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Fig. 8 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Fig. 9 is another module diagram of the server of embodiment of the present invention;
Figure 10 is that the refrigerator of embodiment of the present invention belongs to the first temperature value of normal conditions and the variation schematic diagram of difference;
Figure 11 is the first temperature value of the appearance leakage of refrigerant failure of embodiment of the present invention and the variation signal of difference Figure;
Figure 12 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Figure 13 is the refrigerator of embodiment of the present invention and another connection schematic diagram of server;
Figure 14 is another flow diagram of the judgment method of the breakdown of refrigerator of embodiment of the present invention;
Figure 15 is another module diagram of the server of embodiment of the present invention;
Figure 16 is another module diagram of the server of embodiment of the present invention;
Figure 17 is the server of embodiment of the present invention and the connection schematic diagram of computer readable storage medium.
Main element symbol description:
Refrigerator 100, storeroom 110, evaporator 120, the first temperature sensor 130, second temperature sensor 140, communication Module 150, server 200, first obtain module 212, computing module 214, first processing module 216, first judgment module 218, Second processing module 222, the second judgment module 224, third processing module 226, third judgment module 228, second obtain Module 232, training module 234, pushing module 236, processor 240, memory 260, computer readable storage medium 300.
Specific embodiment
Embodiments of the present invention are described below in detail, the embodiment of the embodiment is shown in the accompanying drawings, wherein Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below It crosses the embodiment being described with reference to the drawings to be exemplary, for explaining only the invention, and should not be understood as to limit of the invention System.
Also referring to Fig. 1 and Fig. 2, the judgment method of embodiment of the present invention can be used for judging whether refrigerator 100 goes out Existing leakage of refrigerant failure.Refrigerator 100 includes storeroom 110 and evaporator 120, and refrigerator 100 includes for detecting evaporator 120 The first temperature value the first temperature sensor 130 and second temperature value for detecting storeroom 110 second temperature sensing Device 140.Judgment method includes:
Step S212: multiple first temperature values and corresponding multiple second temperature values are obtained;
Step S214: the difference of each second temperature value and preset temperature value is calculated;
Step S216: multiple first temperature values and corresponding multiple differences are handled to judge using support vector machine classifier Whether the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio;With
Step S218: when the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio, judge refrigerator 100 there is leakage of refrigerant failure.
Referring to Fig. 2, the server 200 of embodiment of the present invention can be used for judging whether refrigerator 100 is made Cryogen reveals failure.Refrigerator 100 includes storeroom 110 and evaporator 120, and refrigerator 100 includes for detecting evaporator 120 First temperature sensor 130 of one temperature value and the second temperature sensor of the second temperature value for detecting storeroom 110 140.Server 200 includes the first acquisition module 212, computing module 214, first processing module 216 and first judgment module 218.First acquisition module 212 is for obtaining multiple first temperature values and corresponding multiple second temperature values.Computing module 214 is used In the difference for calculating each second temperature value and preset temperature value.First processing module 216 is used to utilize support vector cassification Device handle multiple first temperature values and corresponding multiple differences with judge refrigerator 100 occur leakage of refrigerant failure ratio whether Greater than the first preset ratio.The ratio that first judgment module 218 is used to leakage of refrigerant failure occur in refrigerator 100 is greater than first When preset ratio, judge that leakage of refrigerant failure occurs in refrigerator 100.
In other words, the judgment method of embodiment of the present invention can be realized by the server 200 of embodiment of the present invention, Wherein, step S212 can realize that step S214 can be realized by computing module 214, step S216 by the first acquisition module 212 It can be realized by first processing module 216, step S218 can be realized by first judgment module 218.
In some embodiments, the judgment method of embodiment of the present invention can also be by the refrigerator of invention embodiment 100 realize, for example, step S212, S214, S216 and S218 can be by data processing equipment (such as processors of refrigerator 100 Deng) realize.
The judgment method and server 200 of embodiment of the present invention judge that refrigerator 100 is using support vector machine classifier It is no leakage of refrigerant failure occur, so as to help Maintenance Engineer to understand failure cause in advance, spare part is brought all, is effectively improved On-site maintenance rate of Maintenance Engineer.
In some embodiments, storeroom 110 includes freezing chamber, temperature-changing chamber and refrigerating chamber, and evaporator 120 includes freezing Defrosting evaporator and refrigeration defrosting evaporator, the first temperature value include freezing the first evaporator temperature values of defrosting evaporator and cold Hide the second evaporator temperature values of defrosting evaporator, second temperature value include the first room temperature angle value of freezing chamber, temperature-changing chamber the The third room temperature angle value of two room temperature angle value and refrigerating chamber.Freezing chamber, temperature-changing chamber and refrigerating chamber refer respectively to the different storage of temperature Room 110, freezing defrosting evaporator and refrigeration defrosting evaporator can provide low temperature for different storerooms 110.It needs to illustrate It is that refrigerator 100 includes at least one storeroom 110 and at least one evaporator 120, according to the manufacturer of refrigerator 100 and model Difference, refrigerator 100 may include at least one of freezing chamber, temperature-changing chamber and refrigerating chamber, i.e., refrigerator 100 include freezing chamber or Person's refrigerator 100 include temperature-changing chamber or refrigerator 100 include refrigerating chamber or refrigerator 100 include freezing chamber and temperature-changing chamber or Refrigerator 100 includes freezing chamber and refrigerating chamber or refrigerator 100 includes temperature-changing chamber and refrigerating chamber or refrigerator 100 includes freezing Room, temperature-changing chamber and refrigerating chamber.In addition, the quantity of freezing chamber, temperature-changing chamber and refrigerating chamber that refrigerator 100 includes be also possible to it is multiple, It is not specifically limited herein.
In some embodiments, multiple storerooms 110 can share an evaporator 120, i.e., an evaporator 120 is more A storeroom 110 provides low temperature.Wherein, an evaporator 120 passes through conductive structure (such as blower) for the low temperature of evaporator 120 Multiple storerooms 110 are delivered separately to, so that multiple storerooms 110 may be at different temperature.For example, in storeroom 110 include freezing chamber, temperature-changing chamber and refrigerating chamber, and evaporator 120 is cold including freezing defrosting evaporator and when refrigerating defrosting evaporator Low temperature can be provided for freezing chamber by freezing defrosting evaporator, and refrigeration defrosting evaporator can be respectively that temperature-changing chamber and refrigerating chamber offer are low Temperature.In embodiments of the present invention, storeroom 110 includes freezing chamber, temperature-changing chamber and refrigerating chamber, and evaporator 120 includes freezingization White evaporator and refrigeration defrosting evaporator.The quantity of first temperature sensor 130 is two, two the first temperature sensors 130 It is respectively used to the first evaporator temperature values of detection freezing defrosting evaporator and the second evaporator temperature of refrigeration defrosting evaporator Value.The quantity of second temperature sensor 140 is three, and three second temperature sensors 140 can be respectively used to detection freezing chamber The third room temperature angle value of first room temperature angle value, the second Room temperature value of temperature-changing chamber and refrigerating chamber.
In some embodiments, the first temperature sensor 130 can be arranged and is used to detect steaming on evaporator 120 The temperature value of device 120 is sent out as the first temperature value, second temperature sensor 140 can be arranged in storeroom 110 to be used for The temperature value of storeroom 110 is detected as second temperature value, wherein storeroom 110, can be in order to guarantee biggish memory space It slots in storeroom 110, and second temperature sensor 140 is arranged in slot.
It is appreciated that the storeroom 110 that preset temperature value can refer to user setting or be stored in advance in refrigerator 100 Internal temperature values, the internal temperature values that the low temperature that refrigerator 100 is generated by evaporator 120 controls storeroom 110 are intended to pre- If temperature value.In some embodiments, the internal temperature values of storeroom 100 are regulatable, can be obtained by user setting Obtain preset temperature value;In other embodiments, the internal temperature values of storeroom 100 can be preset in refrigerator 100 and/or service In device 200.
In some embodiments, support vector machines (SVM) classifier is a kind of sorting algorithm.Support vector machine classifier It can be preset in server 200 or be obtained by the training of a large amount of related datas.
In some embodiments, the first preset ratio is leakage of refrigerant failure for erroneous judgement to be reduced or avoided.It needs It is noted that the first preset ratio is bigger, erroneous judgement probability is smaller, but will affect the efficiency of judgement, that is, is difficult to be sentenced Disconnected conclusion;First preset ratio is smaller, and the efficiency of judgement is higher, but the probability of erroneous judgement is bigger.In one embodiment, First preset ratio is 90%.
Referring to Fig. 3, in some embodiments, judgment method includes:
Step S222: multiple first temperature values and corresponding multiple differences are handled to judge using support vector machine classifier Whether the ratio that refrigerator 100 belongs to normal conditions is greater than the second preset ratio;With
Step S224: when the ratio that refrigerator 100 belongs to normal conditions is greater than the second preset ratio, judge that refrigerator 100 belongs to In normal conditions.
Referring to Fig. 4, in some embodiments, server 200 includes Second processing module 222 and the second judgment module 224.Second processing module 222 is used to handle multiple first temperature values and corresponding multiple differences using support vector machine classifier Whether it is greater than the second preset ratio to judge that refrigerator 100 belongs to the ratios of normal conditions.Second judgment module 224 is used in refrigerator When 100 ratios for belonging to normal conditions are greater than the second preset ratio, judge that refrigerator 100 belongs to normal conditions.
In other words, step S222 can be realized by Second processing module 222, and step S224 can be by the second judgment module 224 realize.
So, it can be determined that whether refrigerator 100 belongs to normal conditions.
Specifically, refrigerator 100 belongs to normal conditions and refers to that refrigerator 100 can work normally.Second preset ratio is for subtracting Less or erroneous judgement refrigerator 100 is avoided to belong to normal conditions.It should be noted that the second preset ratio is bigger, erroneous judgement probability is got over It is small, but will affect the efficiency of judgement, that is, it is difficult to the conclusion judged;Second preset ratio is smaller, and the efficiency of judgement is higher, But the probability of erroneous judgement is bigger.In one embodiment, the second preset ratio is 90%.In addition, the first preset ratio and Two preset ratios can be identical or different, is not specifically limited herein.
Referring to Fig. 5, in some embodiments, judgment method includes:
Step S226: multiple first temperature values and corresponding multiple differences are handled to judge using support vector machine classifier Whether the ratio that other failures occurs in refrigerator 100 is greater than third preset ratio;With
Step S228: when the ratio that other failures occurs in refrigerator 100 is greater than third preset ratio, judge that refrigerator 100 goes out Other existing failures.
Referring to Fig. 6, in some embodiments, server 200 includes third processing module 226 and third judgment module 228.Third processing module 226 is used to handle multiple first temperature values and corresponding multiple differences using support vector machine classifier Whether it is greater than third preset ratio with the ratio for judging that other failures occurs in refrigerator 100.Third judgment module 228 is used in refrigerator When 100 ratios for other failures occur are greater than third preset ratio, judge that other failures occurs in refrigerator 100.
In other words, step S226 can be realized by third processing module 226, and step S228 can be by third judgment module 228 realize.
So, it can be determined that whether refrigerator 100 other failures occurs.
Specifically, refrigerator 100 occur other failures refer to refrigerator 100 occur other than leakage of refrigerant failure other therefore Barrier, other failures include freezing fan trouble, alternating temperature damper faults, electromagnetic valve failure etc..Third preset ratio is for reducing Or avoiding erroneous judgement is other failures.It should be noted that third preset ratio is bigger, erroneous judgement probability is smaller, but can shadow The efficiency for ringing judgement, that is, be difficult to the conclusion judged;Third preset ratio is smaller, and the efficiency of judgement is higher, but erroneous judgement Probability it is bigger.In one embodiment, third preset ratio is 90%.In addition, the first preset ratio, the second preset ratio and Third preset ratio can be identical or different, is not specifically limited herein.
In some embodiments, judgment method can determine whether that refrigerator 100 belongs to normal conditions, leakage of refrigerant failure occurs Still there are other failures.
In one embodiment, support vector machine classifier includes three classifiers, is that refrigerator 100 belongs to positive reason respectively Shape belongs to normal conditions and the classifier A2 of other failures occurs with there is the classifier A1 of leakage of refrigerant failure, refrigerator 100, There is leakage of refrigerant failure and the classifier A3 of other failures occurs, every group of temperature Value Data (including the first temperature value and difference Value) it requires to handle by three support vector machine classifiers, which kind of feelings belonged to by three support vector machine classifier judgements Shape, then the final classification of number is most in three kinds of situations situation as data is taken, finally count and judge the ratio of final classification Whether example is greater than preset ratio, to obtain the situation of refrigerator 100.Such as one group of data is by being judged as appearance after classifier A1 Leakage of refrigerant failure, by being judged as normal conditions after classifier A2, by being judged as that refrigerant occur lets out after classifier A3 Reveal failure, due to occur the situation of leakage of refrigerant failure be twice, normal conditions be it is primary, there are not other failures, because The final classification of this this group of data is leakage of refrigerant failure occur.It should be noted that in some embodiments, due to number According to error or there is erroneous judgement, one group of data are respectively gone out by being likely to occur three kinds of situations after three support vector machine classifiers It existing one time the problem of, can be by giving up this group of data or all data (the being reclassified or given up using support vector machines One temperature value and difference) and the methods of reacquisition solution this problem.
It is less than or equal to the first preset ratio in the ratio that leakage of refrigerant failure occurs in refrigerator 100, refrigerator 100 belongs to normally The ratio of situation is less than or equal to the second preset ratio, and the ratio that other failures occurs in refrigerator 100 is less than or equal to the default ratio of third When example, the first temperature value and difference and the judgment method for re-executing embodiment of the present invention are reacquired.
Referring to Fig. 7, in some embodiments, step S212 includes:
Step S2122: multiple time points in preset duration obtain and cache multiple first temperature values and multiple second Temperature value.
Referring to Fig. 2, in some embodiments, first obtains module 212 for multiple in preset duration Time point obtains and caches multiple first temperature values and multiple second temperature values.
In other words, step S2122 can be realized by the first acquisition module 212.
In this way, server 200 can obtain multiple first temperature values and multiple second temperature values.
It is appreciated that refrigerator 100 can acquire multiple first temperature values and multiple second temperature values by temperature sensor, And multiple first temperature values, multiple second temperature values and preset temperature value are uploaded to server 200.Refrigerator 100 can pass through Multiple time points acquire multiple first temperature values and multiple second temperature values respectively, and each time point acquires first temperature value With a second temperature value, multiple first temperature values and multiple second temperature values are uploaded to clothes again after then caching preset duration Business device 200;Or refrigerator 100 acquires multiple first temperature values and multiple second temperature values and real-time by multiple time points respectively It is uploaded to server 200, server 200 is buffered in the temperature Value Data that refrigerator 100 uploads in preset duration, to obtain multiple First temperature value and multiple second temperature values.In one embodiment, preset duration is 6 hours, and time point is in preset duration Inside at regular intervals (such as one minute, ten minutes or 30 minutes) corresponding to time point.
Referring to Fig. 8, in some embodiments, judgment method includes:
Step S232: acquisition has been marked as refrigerator 100 and corresponding multiple first temperature values of leakage of refrigerant failure occurs With multiple differences;
Step S234: there are corresponding multiple first temperature values of leakage of refrigerant failure according to refrigerator 100 is had been marked as With multiple difference Training Support Vector Machines classifiers.
Referring to Fig. 9, in some embodiments, server 200 includes the second acquisition module 232 and training module 234. Second acquisition module 232 has been marked as refrigerator 100 for acquisition and corresponding multiple first temperature of leakage of refrigerant failure occurs Value and multiple differences.Training module 234 is used for that leakage of refrigerant failure occur corresponding multiple according to refrigerator 100 is had been marked as First temperature value and multiple difference Training Support Vector Machines classifiers.
In other words, step S232 can realize that step S234 can be by training module 234 by the second acquisition module 232 It realizes.
In this way, can train and obtain support vector machine classifier.
In one embodiment, storeroom 110 includes freezing chamber, temperature-changing chamber and refrigerating chamber, and evaporator 120 includes freezingization White evaporator and refrigeration defrosting evaporator, the first temperature value include the first evaporator temperature values T for freezing defrosting evaporatorfdWith it is cold Hide the second evaporator temperature values T of defrosting evaporatorrd, difference includes the first room temperature angle value T of freezing chamberfWith presetting for freezing chamber Temperature value Tfs, temperature-changing chamber second Room temperature value TcWith the preset temperature value T of temperature-changing chambercs, refrigerating chamber third room temperature angle value Tr With the preset temperature value T of refrigerating chamberrs.Support vector machine classifier includes three classifiers, is that refrigerator 100 belongs to positive reason respectively Shape belongs to normal conditions and the classifier A2 of other failures occurs with there is the classifier A1 of leakage of refrigerant failure, refrigerator 100, There is leakage of refrigerant failure and the classifier A3 of other failures occurs.It is available to have been marked as leakage of refrigerant event occur , there is multiple first temperature values of other failures and multiple differences at normal conditions in barrier, is let out using having been marked as refrigerant occur Multiple first temperature values and the training of multiple differences of dew failure and normal conditions and following (training is simultaneously for the method for obtaining classifier A1 It is similar with classifier A3 to obtain classifier A2).
Input parameter vector x=[Tr-Trs, Tc-Tcs, Tf-Tfs, Tfd, Trd], then become given training set T={ (x1, y1), (x2, y2) ..., (xN, yN), (xi∈ X=R5, yi∈ Y={+1, -1 }, i=1,2 ... N, wherein yi=+1 indicates normal conditions; yi=-1 indicates refrigerant leakage failure.) under to input parameter classification problem.Solution procedure is as follows:
Choose appropriate kernel function K (x, z) (gaussian kernel function is chosen in embodiment of the present invention: K (x, z)=exp (- | | x- z||2/2σ2)) and parameter C appropriate, it constructs and solves optimization problem
0≤α≤C, i=1,2..., N
Optimal solution α is acquired using sequential minimal optimization (SMO)*=(α1 *2 *,...,αN *).
Select a*A 0 < α of positive componentj *< C is calculated
Construction decision function classifies to input parameter x:
So as to unlabelled data are marked using decision function to obtain the working condition of refrigerator 100.Example Such as, operation is carried out using first temperature value and difference of the decision function to input, (corresponding refrigerator 100 belongs to just to obtain+1 Reason shape) and -1 (corresponding refrigerator 100 leakage of refrigerant failure occur) numerical value.
Also referring to Figure 10 and Figure 11, in some embodiments, refrigerator 100 belongs to normal conditions and refrigerant occurs It reveals the first temperature value of failure and the numerical value of difference and variation is different, can be distinguished using support vector machine classifier Refrigerator 100 belongs to normal conditions and the difference of leakage of refrigerant failure occurs, to carry out to the first temperature value and difference Classification, and then determine the working condition of refrigerator.
Also referring to Figure 12 and Figure 13, refrigerator 100 includes the communication module 150 for communicating with server 200.Step S232 includes:
Step S2322: it is transmitted between refrigerator 100 and server 200 using communication module 150 and has been marked as refrigerator 100 there is corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences.
Referring to Figure 13, in some embodiments, refrigerator 100 includes the communication for communicating with server 200 Module 150.Second acquisition module 232, which is used to transmit between refrigerator 100 and server 200 using communication module 150, have been marked It is denoted as refrigerator 100 and corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences occurs.
In other words, step S2322 can be realized by the second acquisition module 232.
In this way, there is leakage of refrigerant failure corresponding multiple in the available refrigerator 100 that has been marked as of server 200 One temperature value and multiple differences.
Specifically, after the working condition (normal conditions, leakage of refrigerant failure or other failures) for determining refrigerator 100, Refrigerator 100 can use temperature sensor and acquire multiple first temperature values and multiple second temperature values, and pass through communication module 150 Multiple first temperature values and multiple second temperature values are transferred to server 200, server 200 is according to determining refrigerator 100 Working condition the first temperature value and second temperature value can be marked, so that server 200 can be had been marked as There is corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences in refrigerator 100.In addition, multiple servers 200 it Between can also carry out having been marked as refrigerator 100 corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences occur Mutual transmission, be not specifically limited herein.
In some embodiments, the judgment method of embodiment of the present invention is real by the refrigerator 100 of embodiment of the present invention Now, refrigerator 100 can be obtained from server 200 by communication module 150 has been marked as refrigerator 100 and leakage of refrigerant occurs Corresponding multiple first temperature values of failure and multiple differences, so that refrigerator 100 can use and have been marked as refrigerator 100 and make Cryogen leakage corresponding multiple first temperature values of failure and multiple differences are trained support vector machine classifier.
Figure 14 is please referred to, in some embodiments, judgment method includes:
Step S236: the conclusion that leakage of refrigerant failure occurs in refrigerator 100 is pushed into default terminal.
Figure 15 is please referred to, in some embodiments, server 200 includes pushing module 236.Pushing module 236 is used for The conclusion that leakage of refrigerant failure occurs in refrigerator 100 is pushed into default terminal.
In other words, step S236 can be realized by pushing module 236.
In this way, default terminal can be pushed in time when leakage of refrigerant failure occurs in refrigerator 100.
Specifically, default terminal may include repair the server of relevant departments or company, maintenance personal mobile terminal, At least one of mobile terminal and refrigerator 100 of user etc..Default terminal can issue prompt after receiving conclusion, preset eventually End may include at least one of display panel, electroacoustic component (such as loudspeaker) and vibrating elements, i.e., default terminal includes display Perhaps default terminal includes that perhaps default terminal includes vibrating elements to electroacoustic component or default terminal includes display surface to panel Perhaps default terminal includes display panel and vibrating elements or default terminal includes electroacoustic component and vibration for plate and electroacoustic component Dynamic element or default terminal include display panel, electroacoustic component and vibrating elements.Default terminal can by image, text, The modes such as voice, vibration issue prompt, are not specifically limited herein.Server 200 can for for the computer as server, Mobile terminal can be mobile phone, tablet computer etc..
Figure 16 is please referred to, the server 200 of embodiment of the present invention includes one or more controller 240, memory 260 And one or more programs.Wherein one or more programs are stored in memory 260, and are configured by one or more A controller 240 executes, and program is used to execute the instruction of the judgment method of any of the above-described embodiment of the present invention.
For one of example, program can be used for executing the instruction of following judgment method:
Step S212: multiple first temperature values and corresponding multiple second temperature values are obtained;
Step S214: the difference of each second temperature value and preset temperature value is calculated;
Step S216: multiple first temperature values and corresponding multiple differences are handled to judge using support vector machine classifier Whether the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio;With
Step S218: when the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio, judge refrigerator 100 there is leakage of refrigerant failure.
Figure 17, the computer readable storage medium 300 of embodiment of the present invention are please referred to, including is combined with server 200 The computer program used, computer program can be executed by processor 240 to complete sentencing for any of the above-described embodiment of the invention Disconnected method.
For one of example, computer program can be executed by processor 240 to complete following judgment method:
Step S212: multiple first temperature values and corresponding multiple second temperature values are obtained;
Step S214: the difference of each second temperature value and preset temperature value is calculated;
Step S216: multiple first temperature values and corresponding multiple differences are handled to judge using support vector machine classifier Whether the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio;With
Step S218: when the ratio that leakage of refrigerant failure occurs in refrigerator 100 is greater than the first preset ratio, judge refrigerator 100 there is leakage of refrigerant failure.
It should be pointed out that computer readable storage medium 300 can be the storage medium being built in server 200, It is also possible to that the storage medium of server 200 can be plugged on plugging.
In the description of embodiments of the present invention, term " first ", " second " are used for description purposes only, and cannot understand For indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include one or more feature.In embodiments of the present invention In description, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body;It can be mechanical connection, be also possible to be electrically connected or can mutually communicate;It can be directly connected, can also lead to It crosses intermediary to be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For ability For the those of ordinary skill in domain, can understand as the case may be above-mentioned term in embodiments of the present invention specifically contain Justice.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", specific examples or " some examples " etc. means the tool described in conjunction with the embodiment or example Body characteristics, structure, material or feature are contained at least one embodiment or example of the invention.In the present specification, Schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system, including the system of processing module or other can be from instruction Execute system, device or equipment instruction fetch and the system that executes instruction) use, or combine these instruction execution systems, device or Equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any may include, store, communicating, propagating or Transfer program uses for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment Device.The more specific example (non-exhaustive list) of computer-readable medium include the following: there are one or more wirings Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of embodiments of the present invention can be with hardware, software, firmware or their combination come real It is existing.In the above-described embodiment, multiple steps or method can be with storages in memory and by suitable instruction execution system The software or firmware of execution is realized.For example, if realized with hardware, in another embodiment, ability can be used Any one of following technology or their combination well known to domain is realized: being had for realizing logic function to data-signal The discrete logic of logic gates, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
In addition, each functional unit in various embodiments of the present invention can integrate in a processing module, it can also To be that each unit physically exists alone, can also be integrated in two or more units in a module.It is above-mentioned integrated Module both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module If in the form of software function module realize and when sold or used as an independent product, also can store one calculating In machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (18)

1. a kind of judgment method of breakdown of refrigerator, which is characterized in that the refrigerator includes storeroom and evaporator, the refrigerator packet Include the first temperature sensor of the first temperature value for detecting the evaporator and the second temperature for detecting the storeroom The second temperature sensor of angle value, the judgment method include:
Obtain multiple first temperature values and corresponding multiple second temperature values;
Calculate the difference of each the second temperature value and preset temperature value;
It is described to judge that multiple first temperature values and corresponding multiple differences are handled using support vector machine classifier Whether the ratio that leakage of refrigerant failure occurs in refrigerator is greater than the first preset ratio;With
When the ratio that leakage of refrigerant failure occurs in the refrigerator is greater than first preset ratio, judge that the refrigerator occurs Leakage of refrigerant failure.
2. judgment method as described in claim 1, which is characterized in that the judgment method includes:
Multiple first temperature values and corresponding multiple differences are handled using the support vector machine classifier to judge Whether the ratio that the refrigerator belongs to normal conditions is greater than the second preset ratio;With
When the ratio that the refrigerator belongs to normal conditions is greater than second preset ratio, judge that the refrigerator belongs to positive reason Shape.
3. judgment method as claimed in claim 1 or 2, which is characterized in that the judgment method includes:
Multiple first temperature values and corresponding multiple differences are handled using the support vector machine classifier to judge Whether the ratio that other failures occurs in the refrigerator is greater than third preset ratio;With
When the ratio that other failures occurs in the refrigerator is greater than the third preset ratio, judge that other events occurs in the refrigerator Barrier, other failures include freezing fan trouble, alternating temperature damper faults, electromagnetic valve failure.
4. judgment method as described in claim 1, which is characterized in that the multiple first temperature value and right of obtaining The multiple second temperature values answered include:
Multiple time points in preset duration obtain and cache multiple first temperature values and multiple second temperature values.
5. judgment method as described in claim 1, which is characterized in that the judgment method includes:
Acquisition has been marked as the refrigerator and corresponding multiple first temperature values of leakage of refrigerant failure and multiple institutes occurs State difference;
There is corresponding multiple first temperature values of leakage of refrigerant failure and multiple institutes according to the refrigerator is had been marked as State the difference training support vector machine classifier.
6. judgment method as claimed in claim 5, which is characterized in that the refrigerator includes for the communication with server communication Module, the acquisition have been marked as the refrigerator and corresponding multiple first temperature values of leakage of refrigerant failure and more occur A difference includes:
It is transmitted between the refrigerator and the server using the communication module and has been marked as the refrigerator and freeze Corresponding multiple first temperature values of failure and multiple differences are revealed in agent.
7. judgment method as described in claim 1, which is characterized in that the judgment method includes:
The conclusion that leakage of refrigerant failure occurs in the refrigerator is pushed into default terminal.
8. judgment method as described in claim 1, which is characterized in that the storeroom includes freezing chamber, temperature-changing chamber and refrigeration Room, the evaporator include freezing defrosting evaporator and refrigeration defrosting evaporator, and first temperature value includes the freezingization Second evaporator temperature values of the first evaporator temperature values of white evaporator and the refrigeration defrosting evaporator, the second temperature Value includes the first room temperature angle value, the second Room temperature value of the temperature-changing chamber and the third room temperature of the refrigerating chamber of the freezing chamber Angle value.
9. a kind of server, for judging whether refrigerator leakage of refrigerant failure occurs, which is characterized in that the refrigerator includes storage Hide room and evaporator, the refrigerator includes the first temperature sensor for detecting the first temperature value of the evaporator and is used for The second temperature sensor of the second temperature value of the storeroom is detected, the server includes:
First obtains module, and the first acquisition module is for obtaining multiple first temperature values and corresponding multiple described the Two temperature values;
Computing module, the computing module are used to calculate the difference of each the second temperature value and preset temperature value;
First processing module, the first processing module are used to handle multiple first temperature using support vector machine classifier Whether to be greater than first default to judge the ratio of leakage of refrigerant failure occur by the refrigerator for value and corresponding multiple differences Ratio;With
First judgment module, the ratio that the first judgment module is used to leakage of refrigerant failure occur in the refrigerator are greater than institute When stating the first preset ratio, judge that leakage of refrigerant failure occurs in the refrigerator.
10. server as claimed in claim 9, which is characterized in that the server includes:
Second processing module, the Second processing module are used to utilize support vector machine classifier processing multiple described first Whether temperature value and corresponding multiple differences are greater than the second default ratio to judge that the refrigerator belongs to the ratios of normal conditions Example;With
Second judgment module, the ratio that second judgment module is used to belong in the refrigerator normal conditions are greater than described second When preset ratio, judge that the refrigerator belongs to normal conditions.
11. the server as described in claim 9 or 10, which is characterized in that the server includes:
Third processing module, the third processing module are used to utilize support vector machine classifier processing multiple described first Whether temperature value and corresponding multiple differences are greater than the default ratio of third with the ratio for judging that other failures occurs in the refrigerator Example;With
Third judgment module, the ratio that the third judgment module is used to other failures occur in the refrigerator are greater than the third When preset ratio, judge that other failures occurs in the refrigerator, other failures include freezing fan trouble, alternating temperature damper faults, electricity Magnetic failsafe valve.
12. server as claimed in claim 9, which is characterized in that described first, which obtains module, is used in preset duration Multiple time points obtain and cache multiple first temperature values and multiple second temperature values.
13. server as claimed in claim 9, which is characterized in that the server includes:
Second obtains module, and the second acquisition module has been marked as the refrigerator for acquisition and leakage of refrigerant failure occurs Corresponding multiple first temperature values and multiple differences;
Training module, the training module are used for that leakage of refrigerant failure occur corresponding more according to the refrigerator is had been marked as A first temperature value and multiple difference training support vector machine classifier.
14. server as claimed in claim 13, which is characterized in that the refrigerator include for the server communication Communication module, the second acquisition module using the communication module between the refrigerator and the server for being transmitted It is marked as the refrigerator and corresponding multiple first temperature values of leakage of refrigerant failure and multiple differences occurs.
15. server as claimed in claim 9, which is characterized in that the server includes:
Pushing module, the pushing module are used to push to the conclusion that leakage of refrigerant failure occurs in the refrigerator default whole End.
16. server as claimed in claim 9, which is characterized in that the storeroom includes freezing chamber, temperature-changing chamber and refrigeration Room, the evaporator include freezing defrosting evaporator and refrigeration defrosting evaporator, and first temperature value includes the freezingization Second evaporator temperature values of the first evaporator temperature values of white evaporator and the refrigeration defrosting evaporator, the second temperature Value includes the first room temperature angle value, the second Room temperature value of the temperature-changing chamber and the third room temperature of the refrigerating chamber of the freezing chamber Angle value.
17. a kind of server characterized by comprising
One or more processors;
Memory;And
One or more programs wherein one or more of programs are stored in the memory, and are configured by institute One or more processors execution is stated, described program requires the finger of judgment method described in 1-8 any one for perform claim It enables.
18. a kind of computer readable storage medium, which is characterized in that including the computer program being used in combination with server, institute Stating computer program can be executed by processor to complete judgment method described in claim 1-8 any one.
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CN113531981B (en) * 2021-07-20 2022-08-02 四川虹美智能科技有限公司 Refrigerator refrigeration abnormity detection method and device based on big data

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