CN106766646B

CN106766646B - For detecting the method for whether being put into temperature anomaly article in refrigerator

Info

Publication number: CN106766646B
Application number: CN201611046858.7A
Authority: CN
Inventors: 李春阳; 苗建林; 牟森; 赵斌堂; 刘昀曦
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Co Ltd
Priority date: 2016-11-23
Filing date: 2016-11-23
Publication date: 2019-05-03
Anticipated expiration: 2036-11-23
Also published as: CN106766646A; WO2018095332A1

Abstract

The present invention provides a kind of for detecting the method for whether being put into temperature anomaly article in refrigerator, wherein refrigerator includes: the internal multiple infrared sensors for being divided into the cabinet of multiple storage spaces, the door body of cabinet front being arranged in and is sensed respectively to the temperature of multiple storage spaces, and this method comprises: controlling multiple infrared sensor collecting temperature values after door body unlatching；Judge in multiple storage spaces with the presence or absence of the abnormal storage space that may be put into temperature anomaly article；If judgement has abnormal storage space, abnormal storage space is obtained in the first temperature change value that may be put into before and after temperature anomaly article and its second temperature changing value as caused by progress heat exchange between external environment and its before and after it may be put into temperature anomaly article；And judge whether be put into temperature anomaly article in abnormal storage space according to the first temperature change value and second temperature changing value.The present invention can relatively accurately judge whether be put into Superheat Food in a certain storage space.

Description

For detecting the method for whether being put into temperature anomaly article in refrigerator

Technical field

The present invention relates to refrigerating equipment, more particularly to one kind for detecting whether be put into temperature anomaly object in refrigerator The method of product.

Background technique

Conventional refrigerator usually senses the temperature around its position using the temperature sensor being arranged in inside storage room Degree, using the temperature as the foundation of refrigeration control.When carrying out refrigerator control using this control mode, in temperature sensor measurement Temperature be higher than preset value when, refrigerator starting refrigeration.However, storage room put object partition be divided into it is multiple relatively independent In the case where storage space, if the higher hot food of temperature is put into a certain storage space of refrigerator by user, on the one hand, hot food Be put into the temperature that will affect storage space where it, so that the various bacteriums being originally present in refrigerator inside food can be made to obtain To breed faster, it is unfavorable for the healthy and safe preservation of food；On the other hand, if integrally carried out to storage room indiscriminate Refrigeration, it will cause waste of energy, at the same will lead to be put into hot food storage space cooling it is slow.

In addition, storage space temperature change can be caused by being put into the higher hot food of temperature, and is not put into refrigerator open The storage space of hot food also due between external environment and storage room heat exchange caused by free convection cause temperature to become Change, but distinguish above-mentioned two situations without method of discrimination appropriate always in the prior art, leads to refrigerator in the prior art Refrigeration control it is not accurate enough.Do not increase refrigerator hardware cost too much, above-mentioned two can relatively accurately be distinguished by providing one kind The method of discrimination of kind situation is that refrigerator art thirsts for always solution but always unsolved technical problem.

Summary of the invention

In view of the above problems, the present invention is proposed to overcome the above problem or at least to be partially solved the above problem.

A further object of the present invention is to provide in a kind of detection refrigerator whether be put into the side of temperature anomaly article Whether method is put into Superheat Food to detect refrigerator during enabling.

Another further object of the present invention is to the accuracys of the refrigeration control of refrigerator to be improved.

Particularly, the present invention provides a kind of for detecting the method for whether being put into temperature anomaly article in refrigerator, wherein The refrigerator includes: the internal door body for being divided into the cabinet of multiple storage spaces, the cabinet front being arranged in and right respectively Multiple infrared sensors that the temperature of the multiple storage space is sensed, and the described method includes:

After door body unlatching, the multiple infrared sensor collecting temperature value is controlled；

Judge in the multiple storage space with the presence or absence of the abnormal storage space that may be put into temperature anomaly article；

If there are the abnormal storage spaces for judgement, temperature anomaly object may be put by obtaining the abnormal storage space The first temperature change value before and after product and its before and after it may be put into temperature anomaly article due to being carried out between external environment and its Second temperature changing value caused by heat exchange, wherein first temperature change value, which is equal to the abnormal storage space, to put The difference of second temperature value and the first temperature value that may be put into before temperature anomaly article after entering temperature anomaly article, and when described The corresponding infrared sensor of abnormal storage space is all satisfied in the temperature value that first appears continuous K acquisition and adjacent acquires twice When the absolute value of the difference of temperature value is less than the first preset value, the temperature value of any one acquisition in the continuous K acquisition As first temperature value, wherein K >=3；And

According to first temperature change value and the second temperature changing value judge in the abnormal storage space whether It is put into temperature anomaly article.

Optionally, wherein judging in the multiple storage space with the presence or absence of the abnormal storage space, comprising:

During the door body is opened, if any infrared sensor appearance in the multiple infrared sensor is adjacent twice The absolute value of the difference of the temperature value of acquisition is greater than the case where preset mutation value, then judges that there are institutes in the multiple storage space Abnormal storage space is stated, and each absolute value of the difference for the adjacent temperature value acquired twice occur is greater than the infrared of the mutation value The corresponding storage space of sensor is the abnormal storage space；

During the door body is opened, if the difference of the adjacent temperature value acquired twice of each infrared sensor is absolute Value, which is respectively less than, is equal to the mutation value, then judges that the abnormal storage space is not present in the multiple storage space, wherein institute Mutation value is stated more than or equal to first preset value.

Optionally, wherein the step of obtaining the second temperature value includes:

When the corresponding infrared sensor of the exception storage space is in the exhausted of the difference for the adjacent temperature value acquired twice occur After being greater than the mutation value to value, temperature value that continuous N time acquisition occur be all satisfied the difference of the adjacent temperature value acquired twice Absolute value when being less than first preset value, the temperature value of any one acquisition is as institute in the continuous N time acquisition Second temperature value is stated, wherein M >=3.

Optionally, the corresponding infrared sensor of abnormal storage space first time or most in the continuous K acquisition The temperature value of one acquisition is as first temperature value afterwards；And

The corresponding infrared sensor of the exception storage space in the continuous N time acquisition for the first time or last time is adopted The temperature value of collection is as the second temperature value.

Optionally, wherein calculating described second according to temperature difference sum formula sum (n)=sum (n-1)+IR (n+1)-IR (n) Temperature change value, (0)=0 sum when wherein temperature difference read group total starts, and

If it is different that the corresponding infrared sensor of the exception storage space in the abnormal storage space may be put into temperature The absolute value of the difference of the temperature value of (n+1)th time and n-th acquisition is less than the first preset value during before and after normal article, then IR (n+1) It is respectively that in the abnormal storage space may to be put into temperature different for the corresponding infrared sensor of the abnormal storage space with IR (n) (n+1)th temperature value acquired with n-th during before and after normal article,

If it is different that the corresponding infrared sensor of the exception storage space in the abnormal storage space may be put into temperature The absolute value of the difference of (n+1)th temperature value acquired with n-th is greater than or equal to first preset value during before and after normal article, And there is (n+1)th temperature acquired with n-th during the abnormal storage space may be put into before and after temperature anomaly article The absolute value of the difference of value is less than other infrared sensors of first preset value, then when the quantity of other infrared sensors When being one, IR (n+1) and IR (n) are respectively that other described infrared sensors in the abnormal storage space may be put into temperature (n+1)th temperature value acquired with n-th during before and after exception items；When other infrared sensors quantity be two with When upper, IR (n+1) and IR (n) are respectively that other any described infrared sensors in the abnormal storage space may be put into temperature During before and after exception items the temperature value or IR (n+1) and IR (n) of (n+1)th time and n-th acquisition be respectively all described in other Infrared sensor (n+1)th time and n-th acquisition during the abnormal storage space may be put into before and after temperature anomaly article The average value of temperature value；

If each infrared sensor is during the abnormal storage space may be put into before and after temperature anomaly article (n+1)th time and n-th acquisition temperature value absolute value of the difference be all larger than or be equal to first preset value, then sum (n)= sum(n-1)。

Optionally, when the corresponding infrared sensor of the abnormal storage space carries out the acquisition of first temperature value, often A infrared sensor carries out the 1st acquisition during the abnormal storage space may be put into before and after temperature anomaly article；

It is each described red when the corresponding infrared sensor of the exception storage space carries out the acquisition of the second temperature value Outer sensor carries out last 1 acquisition during the abnormal storage space may be put into before and after temperature anomaly article；

Using the infrared sensor the 2nd time during the abnormal storage space may be put into before and after temperature anomaly article The temperature value of acquisition and the temperature value of the 1st acquisition carry out first time temperature difference read group total；

Using the infrared sensor last 1 during the abnormal storage space may be put into before and after temperature anomaly article The temperature value of the temperature value of secondary acquisition and last acquisition, carries out last time temperature difference read group total；And

The second temperature changing value is the result of last time temperature difference read group total.

Optionally, wherein judging the abnormal storing according to first temperature change value and the second temperature changing value The step of temperature anomaly article whether is put into space include:

Judge whether first temperature change value and the difference of the second temperature changing value are greater than the second preset value,

If so, judging to be put into temperature anomaly article in the abnormal storage space；

If it is not, then judging not being put into temperature anomaly article in the abnormal storage space；

Wherein second preset value is more than or equal to the mutation value.

Optionally, wherein the quantity of the infrared sensor is three or more.

Optionally, wherein controlling the multiple infrared sensor collecting temperature value is to open a preset time in the door body It carries out afterwards.

Optionally, the method also includes:

If judging to be put into temperature anomaly article in the abnormal storage space, issues vision and/or audible signal is reminded User；And/or

If judgement judges the multiple storage space during the door body is opened there is no the abnormal storage space It is not put into temperature anomaly article.

The present invention for the method for whether being put into temperature anomaly article in refrigerator to be detected, first judge be in multiple storage spaces No presence may be put into the abnormal storage space of temperature anomaly article, and further may be put into temperature by abnormal storage space Spend exception items before and after the first temperature change value and its before and after it may be put into temperature anomaly article due to external environment and its Between carry out heat exchange caused by second temperature changing value, judge temperature anomaly article whether is put into abnormal storage space.This The principle for judging whether to be put into temperature anomaly article in abnormal storage space of invention is put into during mainly being opened using refrigerator doors Hot food and indoor and outdoor heat exchange cause the temperature change of storage space and merely since refrigerator doors are opened inside and outside phase storage space Temperature natural trend caused by heat exchange is made comparisons, to judge whether be put into Superheat Food in a certain storage space.

Currently, not yet in the presence of the method for whether being put into temperature anomaly article in detection refrigerator in current refrigerator.For common For user, it may not yet recognize that Superheat Food (such as temperature is greater than the food on 40 DEG C) is put into refrigerator to make refrigerator At which kind of adverse effect, may also not take notice of whether the food temperature being put into refrigerator is excessively high sometimes.For these problems, originally The method of invention can relatively accurately judge Superheat Food whether is put into a certain storage space, and can judge in storage space User is issued when being put into Superheat Food and is reminded, in order to which user is put again after the temperature of temperature anomaly article tends to be normal Enter refrigerator storage.It avoids or reduces and refrigerator and its interior storing is caused to a certain extent due to being put into overheat article in refrigerator Adverse effect.

Further, according to temperature difference sum formula, can relatively accurately calculate abnormal storage space may put the present invention Enter temperature anomaly article front and back as carrying out second temperature changing value caused by heat exchange between external environment and its, to improve Whether the accuracy of temperature anomaly article is put into detection refrigerator of the invention.

Further, the present invention can relatively accurately distinguish storage space temperature during enabling it is raised the reason is that because The higher food of temperature is put into or merely due to heat exchange caused by free convection between external environment and storage space, to have Carry out relatively reasonable refrigeration control appropriate in light of the circumstances conducive to refrigerator.

According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter The above and other objects, advantages and features of the present invention.

Detailed description of the invention

Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter. Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these What attached drawing was not necessarily drawn to scale.In attached drawing:

Fig. 1 is the schematic diagram of refrigerator according to an embodiment of the invention；

Fig. 2 is according to an embodiment of the invention for the method for whether being put into temperature anomaly article in refrigerator to be detected Schematic diagram；

Fig. 3 is in judgement refrigerator according to an embodiment of the invention with the presence or absence of the signal of the method for abnormal storage space Figure；

Fig. 4 is the schematic diagram of the method according to an embodiment of the invention for obtaining the first temperature change value；

Fig. 5 is the schematic diagram of the method according to an embodiment of the invention for obtaining second temperature changing value；

Fig. 6 is the side according to an embodiment of the invention for judging whether to be put into temperature anomaly article in abnormal storage space The schematic diagram of method；

Fig. 7 is according to an embodiment of the invention for the detailed stream for whether being put into temperature anomaly article in refrigerator to be detected Cheng Tu.

Specific embodiment

Fig. 1 is the schematic diagram of refrigerator according to an embodiment of the invention.Referring to Fig. 1, the refrigerator is generally It may include: cabinet 110 and multiple infrared sensors 130.Cabinet 110 can be by roof, bottom wall, rear wall and left and right two side walls It surrounds, door body (not shown) is set in front of cabinet 110, door body can be connected on side wall using pivot structure.Cabinet 110 Inside defines storage room (such as refrigerating chamber).Storage room can be separated into multiple storage spaces 140.Such as using putting object Storage room is divided into multiple storage spaces 140 by frame component 120.One of preferred structure are as follows: rack component 120 includes Storage room, is divided into multiple storage spaces 140 by least one horizontally disposed partition along the vertical direction.In Fig. 1, put Rack component 120 includes first partition, second partition, third partition, and the first storage space, the are wherein formed above first partition Formation third storage space between the second storage space, second partition and third partition is formed between one partition and second partition. In other embodiments of the invention, the quantity of partition quantity and storage space 140 in rack component 120 can be with It is configured in advance according to the volume of refrigerator and requirement.

Multiple infrared sensors 130, are set to inside storage room, are respectively used to measure the temperature of each storage space 140 Degree.The quantity of infrared sensor 130 is set according to the quantity of storage space 140, and each storage space 140 can be set one A infrared sensor 130.

In order to improve infrared sensor 130 to the temperature sensing precision of 140 interior items of storage space, meet to storing sky Between 140 requirements freezed, inventor has carried out a large amount of test to the installation site of infrared sensor 130, and obtains red The preferred installation site of outer sensor 130 and its preferred configuration mode.Storage space 140 where it of infrared sensor 130 Height be higher than 140 whole height of storage space half at (more preferably range be higher than or be located at storage space 140 it is whole 2/3rds of body height), the infrared receiver center line of infrared sensor 130 is set as relative to angular range straight up 70 degree to 150 degree (more preferably range is 76 degree to 140 degree)；And the level of the infrared receiver center line of infrared sensor 130 The angular range of projection and side wall where it is set as 30 degree to 60 degree (more preferably range is 30 degree to 45 degree).

Infrared sensor 130 does not emit infrared ray, but passively receive in institute's sensing range the infrared ray of article transmitting and Background infrared ray, the region of variation and temperature of article temperature, are converted to corresponding electric signal directly in perception storage space 140.

In the refrigerator of the embodiment of the present invention, can adjacent measurement result twice to each infrared sensor 130 into Row calculates, and to obtain the temperature rise situation of each storage space 140, and then judges certain according to the temperature rise situation of storage space 140 Whether a storage space 140 is put into temperature anomaly article.It will be understood by those skilled in the art that temperature anomaly article herein is For the article of temperature excessively high (such as temperature is more than or equal to 40 DEG C).

In some embodiments of the invention, 3 or more storage spaces 140 are arranged in refrigerator, correspondingly, refrigerator setting 3 A above infrared sensor 130.Due to being at most put into temperature anomaly article in two storage spaces 140 of refrigerator simultaneously, In this way, still have other storage spaces 140 even if two storage spaces 140 place temperature anomaly article simultaneously not while placing temperature Spend exception items.

Fig. 2 is according to an embodiment of the invention for the method for whether being put into temperature anomaly article in refrigerator to be detected Schematic diagram.This is for detecting that the method for whether being put into temperature anomaly article in refrigerator generally may include:

Step S102 controls multiple 130 collecting temperature values of infrared sensor after door body unlatching.

Step S104, the adjacent temperature value acquired twice, judgement during door body is opened according to each infrared sensor 130 With the presence or absence of the abnormal storage space that may be put into temperature anomaly article in multiple storage spaces 140.

Step S106, if judgement has abnormal storage space, temperature anomaly may be put by obtaining abnormal storage space The first temperature change value before and after article and its before and after it may be put into temperature anomaly article due between external environment and its into Second temperature changing value caused by row heat exchange.

Step S108 judges whether be put into abnormal storage space according to the first temperature change value and second temperature changing value Temperature anomaly article.

In step s 102, using the open and-shut mode of the door opening detection device detection door body of refrigerator.Door opening detection device It can use the various ways such as fan-shaped switch, magnet-sensitive switch, Hall switch to be detected, when door body is closed completely or is opened Different electric signals is generated, respectively to indicate the state of door body.Multiple infrared biographies can be controlled after door body opens a preset time 130 collecting temperature value of sensor.The preset time may be, for example, 2 to 3 seconds.Make infrared sensor 130 compared to just having opened just in door body Collecting temperature value, one preset time of delay can be to avoid the temperature value hairs for causing infrared sensor 130 to acquire due to flow perturbation Raw mutation.

Infrared sensor 130 can carry out one acquisition at interval of 0.1ms (numerical value can be adjusted flexibly).It is multiple infrared Sensor 130 can be acquired simultaneously.

Step S104 judges empty with the presence or absence of the abnormal storing that may be put into temperature anomaly article in multiple storage spaces 140 Between process include it is a variety of, one of preferred mode can be found in step S1041 shown in Fig. 3 to step S1043.

Step S1041 judges whether have any infrared sensor 130 the adjacent temperature acquired twice occur during enabling The absolute value of the difference of value is greater than the case where preset mutation value；If so, thening follow the steps S1042；If it is not, thening follow the steps S1043。

Step S1042 judges there is abnormal storage space in multiple storage spaces 140, and each occurs adjacent adopting twice The corresponding storage space 140 of infrared sensor 130 that the absolute value of the difference of the temperature value of collection is greater than mutation value is abnormal storing Space.

Step S1043 judges that there is no abnormal storage spaces in multiple storage spaces 140.

That is, the process of step S104 preferably includes: during door body is opened, if aforesaid plurality of infrared sensor The case where absolute value of the difference that the adjacent temperature value acquired twice occurs in any infrared sensor 130 in 130 is greater than mutation value (temperature value that i.e. any infrared sensor 130 acquires mutates) then judges to exist in aforesaid plurality of storage space 140 abnormal Storage space, and each absolute value of the difference for the adjacent temperature value acquired twice occur is greater than the infrared sensor 130 of mutation value Corresponding storage space 140 is abnormal storage space；During door body is opened, if each infrared sensor 130 is adjacent twice The absolute value of the difference of the temperature value of acquisition, which is respectively less than, is equal to mutation value, then judges that there is no different in aforesaid plurality of storage space 140 Normal storage space.

In step S1041, the size of mutation value can be obtained according to experiment.For specific refrigerator, storage space 140 carry out during enabling that infrared sensor 130 caused by heat exchange is adjacent to be detected twice due to external environment and between it The difference (difference can be denoted as the first difference) of temperature value can be obtained by carrying out a large amount of tests to the refrigerator.Art technology What personnel were realized that, storage space 140 during enabling due to be put into temperature anomaly article and external environment and its into The difference (difference can be denoted as the second difference) of the adjacent temperature value detected twice of infrared sensor 130 caused by row heat exchange is answered Above-mentioned first difference should be greater than.For example, when some storage space 140 of refrigerator is put into the article that temperature is 25 DEG C during enabling The size of the difference of the adjacent temperature value detected twice of infrared sensor 130, can be used as the reference value of mutation value.Mutation value is for example It may be configured as 0.6 DEG C or 0.7 DEG C etc..

In an alternative embodiment, a kind of optional process of step S104 are as follows: adopt multiple infrared sensors 130 same The temperature of collection number or same collection point or identical acquisition moment acquisition is compared, and temperature is apparently higher than other infrared sensors The 130 corresponding storage space 140 of infrared sensor 130 is abnormal storage space.In other alternate embodiments, step A kind of optional process of S104 are as follows: be manually entered in multiple storage spaces 140 by user with the presence or absence of abnormal storage space and Which storage space 140 is abnormal storage space.

In some embodiments, in step S104, if judgement there is no abnormal storage space, judges to open in door body Period, aforesaid plurality of storage space 140 was not put into temperature anomaly article.That is, during enabling, if all infrared The case where absolute value of the difference that sensor 130 does not occur the adjacent temperature value acquired twice is greater than mutation value, then judge not deposit In abnormal storage space, and further judge that aforesaid plurality of storage space 140 is not put into temperature anomaly during door body is opened Article.

In step s 106, the first temperature change value, which is preferably equal to abnormal storage space, may be put into temperature anomaly article The difference of second temperature value and the first temperature value that may be put into before temperature anomaly article afterwards.

It includes a variety of for obtaining the process of the first temperature value.In a preferred embodiment, when abnormal storage space is corresponding red Outer sensor is small in the absolute value of the difference that the temperature value for first appearing continuous K acquisition is all satisfied the adjacent temperature value acquired twice When the first preset value, the temperature value of any one acquisition is as the first temperature value in the continuous K acquisition, wherein K >=3, and the first preset value is less than or equal to mutation value.K may be, for example, 3,4,5,6 etc..The size of first preset value can be according to experiment It obtains.For refrigerator, after refrigerator doors unlatching to before being put into temperature anomaly article, the temperature in storage space would generally be steady Surely rise, at this point, infrared sensor temperature value of any one acquisition in continuous K times acquisition is all satisfied and adjacent acquires twice Temperature value absolute value of the difference less than the first preset value.In the present embodiment, any one acquisition in continuous K times acquisition Temperature value can be used as the exception storage space and be put into the temperature before temperature anomaly article.First preset value for example may be configured as 0.5 DEG C or 0.4 DEG C etc..In a further preferred embodiment, the first temperature value is the corresponding infrared sensing of abnormal storage space The temperature value that device 130 acquires for the first time or for the last time in continuous K times acquisition.

In an alternative embodiment, adjacent adopting twice is occurring in the corresponding infrared sensor 130 of recording exceptional storage space The absolute value of the difference of the temperature value of collection is greater than the first temperature value of E acquisition recently before mutation value, as abnormal storage space Temperature value before it may be put into temperature anomaly article, wherein E >=2.E may be, for example, 2,3,4,5 etc..

It includes a variety of for obtaining the process of second temperature value.In a preferred embodiment, when abnormal storage space is corresponding red Outer sensor after the absolute value of the difference for the adjacent temperature value acquired twice occur is greater than mutation value, there is continuous N time acquisition Temperature value when being all satisfied the absolute value of the difference of the adjacent temperature value acquired twice less than the first preset value, in the continuous N The temperature value of any one acquisition is as second temperature value in secondary acquisition, wherein M >=3.M may be, for example, 3,4,5,6 etc..For ice For case, after temperature anomaly article is put into a certain storage space 140, the temperature in the exception storage space first can be with quickly Rate heating, tend towards stability heating later.It is corresponding infrared after the temperature in the exception storage space tends towards stability heating The temperature value of any one acquisition in continuous N time acquisition of sensor 130 is all satisfied the difference of the adjacent temperature value acquired twice Absolute value is less than the first preset value.At this point, the temperature value of any one acquisition can be used as exception storage in continuous N time acquisition Object space is put into the temperature after temperature anomaly article.In a further preferred embodiment, second temperature value is that abnormal storing is empty Between corresponding infrared sensor 130 in continuous N time acquisition for the first time or the temperature value of last time acquisition.

The preferred embodiment for obtaining the first temperature change value can be found in step S1062 shown in Fig. 4 to step S1066.

Step S1062, when the corresponding infrared sensor of abnormal storage space is in the temperature value for first appearing continuous K acquisition When being all satisfied the absolute value of the difference of the adjacent temperature value acquired twice less than the first preset value, in the continuous K acquisition The temperature value of last time acquisition is as the first temperature value.

Step S1064, when the adjacent temperature value acquired twice is occurring in the corresponding infrared sensor of abnormal storage space Absolute value of the difference be greater than mutation value after, temperature value that continuous N time acquisition occur be all satisfied the adjacent temperature value acquired twice When absolute value of the difference is less than the first preset value, the temperature value acquired for the first time in the continuous N time acquisition is as the second temperature Angle value.

The difference of step S1066, second temperature value and the first temperature value is as the first temperature change value.

In the embodiment show in figure 4, the corresponding infrared sensor 130 of abnormal storage space is in the continuous K acquisition The temperature value of middle last time acquisition may be put into temperature anomaly article as abnormal storage space as the first temperature value Preceding temperature value；The temperature that the corresponding infrared sensor 130 of abnormal storage space acquires for the first time in the continuous N time acquisition Value is used as second temperature value, the i.e. temperature value as abnormal storage space after it may be put into temperature anomaly article.Assuming that abnormal Difference of the corresponding infrared sensor 130 of storage space in its H times collected temperature value and the H-1 times collected temperature value Absolute value be greater than mutation value, collect the first temperature value in the secondary collection point P (P < H)；It adopts its secondary collection point Q (Q > H) Collect second temperature value.First temperature value can be denoted as IR1 (P) or IR1 (1), wherein IR1 (P) indicate that abnormal storage space is corresponding The temperature value that is acquired at the P times of infrared sensor 130, IR1 (1) indicates the corresponding infrared sensor 130 of abnormal storage space The temperature value of the 1st acquisition during the exception storage space may be put into before and after temperature anomaly article.Second temperature value can be remembered For IR1 (Q) or IR1 (Q-P+1), wherein IR1 (Q) indicate that the corresponding infrared sensor 130 of abnormal storage space is acquired at the Q times Temperature value, IR1 (Q-P+1) indicates that the corresponding infrared sensor 130 of abnormal storage space may be put in the exception storage space The temperature value that the Q-P+1 time or last time acquire during entering before and after temperature anomaly article.The exception storage space is possible It is interpreted as the corresponding infrared sensor 130 of abnormal storage space during being put into temperature anomaly article front and back and is acquiring the first temperature During value starts until acquisition second temperature value terminates, as each infrared sensor 130 is adopted the P times collection point and the Q times During collection point.

In step s 106, the process of acquisition second temperature changing value includes a variety of, and one of preferred mode is root Abnormal storage space is calculated may to be put into temperature different according to temperature difference sum formula sum (n)=sum (n-1)+IR (n+1)-IR (n) As carrying out second temperature changing value caused by heat exchange between external environment and its before and after normal article.Wherein temperature difference read group total (0)=0 sum when beginning, and:

If the corresponding infrared sensor 130 of the exception storage space may be put into temperature anomaly in the exception storage space The absolute value of the difference of the temperature value of (n+1)th time and n-th acquisition is less than the first preset value during before and after article, then IR (n+1) and IR (n) is respectively that the corresponding infrared sensor 130 of the exception storage space in the exception storage space may be put into temperature anomaly (n+1)th temperature value acquired with n-th during before and after article.

If the corresponding infrared sensor 130 of the exception storage space may be put into temperature anomaly in the exception storage space The absolute value of the difference of (n+1)th temperature value acquired with n-th is greater than or equal to the first preset value during before and after article, and exists The difference of (n+1)th temperature value acquired with n-th during the exception storage space may be put into before and after temperature anomaly article Absolute value less than the first preset value other infrared sensors 130, then when the quantity of other infrared sensors be one when, IR (n + 1) and IR (n) is respectively other infrared sensors (n+1)th during abnormal storage space may be put into before and after temperature anomaly article The temperature value of secondary and n-th acquisition；When the quantity of other infrared sensors is more than two, IR (n+1) and IR (n) are respectively Other any infrared sensors are adopted for (n+1)th time during abnormal storage space may be put into before and after temperature anomaly article with n-th Other respectively whole infrared sensors of the temperature value or IR (n+1) and IR (n) of collection may be put into temperature in abnormal storage space The average value of (n+1)th temperature value acquired with n-th during before and after exception items.

If each infrared sensor 130 n-th during the exception storage space may be put into before and after temperature anomaly article+ The absolute value of the difference of 1 temperature value acquired with n-th is all larger than or is equal to the first preset value, then sum (n)=sum (n-1).

That is, carrying out temperature each time using temperature difference sum formula sum (n)=sum (n-1)+IR (n+1)-IR (n) Before poor read group total, it is intended to the difference of the temperature value acquired twice before and after the corresponding infrared sensor of abnormal storage space first Absolute value is compared with the size of the first preset value, if acquired twice before and after the corresponding infrared sensor of abnormal storage space Temperature value absolute value of the difference less than the first preset value, then directly using the corresponding infrared sensor of abnormal storage space before and after The temperature value acquired twice carries out this temperature difference read group total, otherwise, by what is acquired twice before and after remaining infrared sensor The absolute value of the difference of temperature value is compared with the size of the first preset value, according to comparison result or using before meeting condition It states the temperature difference read group total that the temperature value acquired twice before and after other infrared sensors carries out this and (has what front and back acquired twice The absolute value of the difference of temperature value less than the first preset value other infrared sensors when) or this temperature difference read group total knot Fruit is equal to last temperature difference read group total result, and (absolute value of the difference of the temperature value acquired twice before and after whole infrared sensors is equal When more than or equal to the first preset value).

The preferred flow for obtaining second temperature changing value can be referring specifically to step S1602 shown in Fig. 5 to step S1622。

Step S1602, (0)=0 sum when temperature difference read group total starts.

Step S1604 judges that the corresponding infrared sensor 130 of abnormal storage space may be put into the exception storage space Whether the absolute value of the difference of the 2nd time and the 1st time temperature value acquired less than the first preset value during before and after temperature anomaly article, if It is to then follow the steps S1605；If it is not, thening follow the steps S1606.

Step S1605, sum (1)=IR1 (2)-IR1 (1), wherein IR1 (2), IR1 (1) are respectively abnormal storage space pair The infrared sensor 130 answered the 2nd time and the 1st time acquisition during the exception storage space may be put into before and after temperature anomaly article Temperature value, sum (1) be carry out the 1st temperature difference read group total result.

Step S1606 is judged whether there is the 2nd during the exception storage space may be put into before and after temperature anomaly article It is secondary and the 1st time acquisition temperature value absolute value of the difference less than the first preset value other infrared sensors, if so, executing step Rapid S1607；If it is not, thening follow the steps S1608.

Step S1607, sum (1)=IR2 (2)-IR2 (1), wherein IR2 (2), IR2 (1) are respectively other aforementioned infrared biographies The temperature value of sensor the 2nd time and the 1st time acquisition during the exception storage space may be put into before and after temperature anomaly article.Specifically Ground, when the quantity of other aforementioned infrared sensors is one, IR2 (2) and IR2 (1) are respectively other aforementioned infrared sensors The temperature value of the 2nd time and the 1st time acquisition during abnormal storage space may be put into before and after temperature anomaly article.When it is aforementioned other When the quantity of infrared sensor is more than two, IR2 (2) and IR2 (1) are respectively other any aforementioned infrared sensors in exception Storage space may be put into the 2nd time and the 1st time temperature value acquired during temperature anomaly article front and back；Alternatively, IR2 (2) is complete The temperature of other aforementioned infrared sensors of portion the 2nd acquisition during abnormal storage space may be put into before and after temperature anomaly article The average value of value, IR2 (1) are other whole aforementioned infrared sensors before abnormal storage space may be put into temperature anomaly article The average value of the temperature value of 1st acquisition between later period.

Step S1608, sum (1)=0.

Step S1610 judges that the corresponding infrared sensor 130 of abnormal storage space may be put into the exception storage space Whether the absolute value of the difference of the 3rd time and the 2nd time temperature value acquired less than the first preset value during before and after temperature anomaly article, if It is to then follow the steps S1611；If it is not, thening follow the steps S1612.

Step S1611, sum (2)=sum (1)+IR1 (3)-IR1 (2), wherein IR1 (3), IR1 (2) are respectively abnormal storage The corresponding infrared sensor of object space is the 3rd time and the 2nd during the exception storage space may be put into before and after temperature anomaly article The temperature value of secondary acquisition, sum (2) are the result for carrying out the 2nd temperature difference read group total.

Step S1612 is judged whether there is the 3rd during the exception storage space may be put into before and after temperature anomaly article It is secondary and the 2nd time acquisition temperature value absolute value of the difference less than the first preset value other infrared sensors, if so, executing step Rapid S1613；If it is not, thening follow the steps S1614.

Step S1613, sum (2)=sum (1)+IR2 (3)-IR2 (2), wherein IR2 (3), IR2 (2) be respectively it is aforementioned its The temperature of his infrared sensor the 3rd time and the 2nd time acquisition during the exception storage space may be put into before and after temperature anomaly article Angle value (or average value).For details, reference can be made to step S1607.

Step S1614, sum (2)=sum (1).

And so on, until step S1616, judges that the corresponding infrared sensor 130 of abnormal storage space is stored up in the exception The absolute value of the difference of the temperature value of last 1 time and the 2nd acquisition reciprocal during object space may be put into before and after temperature anomaly article Whether less than the first preset value, if so, thening follow the steps S1617；If it is not, thening follow the steps S1618.

Step S1617, sum (N)=sum (N-1)+IR1 (N+1)-IR1 (N), wherein IR1 (N+1), IR1 (N) are respectively The corresponding infrared sensor of abnormal storage space is last 1 during the exception storage space may be put into before and after temperature anomaly article The temperature value of 2nd acquisition secondary and reciprocal, sum (N), sum (N-1) are respectively last 1 time and the 2nd progress temperature difference summation reciprocal The result of calculating.

Step S1618 is judged whether there is during the exception storage space may be put into before and after temperature anomaly article most Afterwards the absolute value of the difference of the temperature value of 1 time and 2nd acquisition reciprocal less than the first preset value other infrared sensors, if so, Then follow the steps S1619；If it is not, thening follow the steps S1620.

Step S1619, sum (N)=sum (N-1)+IR2 (N+1)-IR2 (N), IR2 (N+1), IR2 (N) are respectively aforementioned Other infrared sensors are last 1 time and inverse the 2nd time during the exception storage space may be put into before and after temperature anomaly article The temperature value (or average value) of acquisition.For details, reference can be made to step S1607.

Step S1620, sum (N)=sum (N-1).

Step S1622, sum (N) are second temperature changing value.

Step S1604 to step S1608 is first time temperature difference read group total.First time temperature difference read group total is from abnormal storing The corresponding infrared sensor 130 in space acquires the first temperature value and starts to carry out.As previously mentioned, abnormal storage space is corresponding infrared Sensor 130 acquires the first temperature value the P times collection point, that is to say, that the corresponding infrared sensor 130 of abnormal storage space The P times acquisition correspond to each infrared sensor during the exception storage space may be put into before and after temperature anomaly article into The 1st time capable acquisition.Before carrying out first time temperature difference read group total, the corresponding infrared sensor of abnormal storage space is first judged 130 the P+1 times and the P times acquire temperature values absolute value of the difference whether less than the first preset value (step S1604), if It is, then sum (1)=IR1 (2)-IR1 (1), wherein IR1 (2), IR1 (1) are respectively the corresponding infrared biography of the exception storage space Sensor 130 the P+1 times and the P times acquire temperature value (IR1 (2), IR1 (1) can also use respectively IR1 (P+1)、IR1(P) table Show) (step S1605).In the temperature value that the corresponding infrared sensor 130 of abnormal storage space is acquired at the P+1 times and the P times Absolute value of the difference be more than or equal to the first preset value in the case where, then judge whether there is the P+1 time and the P times acquisition temperature The absolute value of the difference of angle value less than the first preset value other infrared sensors (step S1606), if there is only one other Infrared sensor, then sum (1)=IR2 (2)-IR2 (1), wherein IR2 (2), IR2 (1) are respectively other infrared sensors 130 The P+1 times and the P times acquire temperature value (IR2 (2), IR2 (1) can also use respectively IR2 (P+1)、IR2(P) indicate)；If In the presence of other more than two infrared sensors, then sum (1)=IR2 ' (2)-IR2 ' (1), wherein IR2 ' (2), IR2 ' (1) be respectively (IR2 ' (2), IR2 ' (1) can also distinguish the temperature value acquired for any of other infrared sensors at the P+1 times and the P times With IR2 ' (P+1)、IR2’(P) indicate)；Or sum (1)=[IR2₁(2)-IR2₁(1)+IR2₂(2)-IR2₂(1)+...]/2, Middle IR2₁(2)、IR2₂It (2) etc. is respectively temperature value (IR2 of other each infrared sensors in the P+1 time acquisition₁(2)、IR2₂ (2) IR2 can also be used respectively₁(P+1)、IR2₂(P+1) indicate), IR2₁(1)、IR2₂It (1) etc. is respectively other each infrared sensings Temperature value (the IR2 that device is acquired at the P times₁(1)、IR2₂(1) IR2 can also be used respectively₁(P)、IR2₂(P) indicate) (step S1607).If the absolute value of the difference for the temperature value that each infrared sensor is acquired at the P+1 times and the P times is all larger than or is equal to First preset value, then sum (1)=0 (step S1608).

Step S1610 to step S1614 is second of temperature difference read group total.Analogously with the summation of the first time temperature difference, exist Before carrying out second of temperature difference read group total, first judge the corresponding infrared sensor 130 of abnormal storage space at the P+2 times and the Whether the absolute value of the difference of the temperature value of P+1 acquisition is less than the first preset value (step S1610), if so, sum (2)=sum (1)+IR1 (3)-IR1 (2), wherein IR1 (3), IR1 (2) are respectively that the corresponding infrared sensor 130 of the exception storage space exists The P+2 times and the P+1 times acquisition temperature value (IR1 (3), IR1 (2) can also use respectively IR1 (P+2)、IR1(P+1) indicate) (step Rapid S1611)；If it is not, then continuing to determine whether that the absolute value of the difference that there is the temperature value acquired at the P+2 times and the P+1 times is small In other infrared sensors (step S1612) of the first preset value.

Step S1616 to step S1620 is last time temperature difference read group total.Temperature difference read group total is in abnormal storage space Corresponding infrared sensor 130 terminates when acquiring second temperature value.As previously mentioned, being the corresponding infrared sensing of abnormal storage space Device 130 acquires second temperature value the Q times collection point, that is to say, that the of the corresponding infrared sensor 130 of abnormal storage space Q acquisition corresponds to what each infrared sensor carried out during the exception storage space may be put into before and after temperature anomaly article Last 1 acquisition.Before carrying out last time temperature difference read group total (i.e. the Q-P times temperature difference read group total), first judgement is abnormal Whether the absolute value of the difference for the temperature value that the corresponding infrared sensor 130 of storage space is acquired at the Q times and the Q-1 times is less than the One preset value (step S1616), if so, sum (Q-P)=sum (Q-P-1)+IR1 (Q-P+1)-IR1 (Q-P), wherein IR1 (Q-P+1), IR1 (Q-P) is respectively that the corresponding infrared sensor 130 of the exception storage space is acquired at the Q times and the Q-1 times Temperature value (IR1 (Q-P+1), IR1 (Q-P) can also use respectively IR1 (Q)、IR1(Q-1) indicate), sum (Q-P) be last time into The result of row temperature difference read group total (step S1617, sum (Q-P) are sum (N))；If it is not, then continuing to determine whether exist Other infrared sensor (steps of the absolute value of the difference of the temperature value of the Q times and the Q-1 times acquisition less than the first preset value S1618)。

Sum (Q-P) is as the exception storage space due to external environment and its before and after it may be put into temperature anomaly article Between carry out heat exchange caused by second temperature changing value.

Step S108 judges whether be put into abnormal storage space according to the first temperature change value and second temperature changing value The process of temperature anomaly article include it is a variety of, one of preferred mode can be found in step S1081 shown in Fig. 6 to step S1083。

Step S1081, judges whether the first temperature change value and the difference of second temperature changing value are greater than the second preset value, If so, thening follow the steps S1082；If it is not, thening follow the steps S1083.

Step S1082 judges to be put into temperature anomaly article in abnormal storage space.

Step S1083 judges not being put into temperature anomaly article in abnormal storage space.

In step S1081, the second preset value can be more than or equal to mutation value.The size of second preset value and refrigerator identification The minimum temperature of temperature anomaly article is related.For example, if refrigerator thinks temperature, the article higher than 40 DEG C is temperature anomaly object Product can then be put into 40 DEG C of article in a certain storage space 140, the size of the second preset value is determined by testing.

After step S1082, capable of emitting vision and/or audible signal remind user that it is in corresponding storage space 140 The article temperature being put into is abnormal.Such as specific music or the tinkle of bells or voice can be issued by pronunciation device built-in in refrigerator Prompt, and/or the display device by being arranged on refrigerator door issue text and remind, and/or by lighting or flashing indicator light Etc. modes remind user.

After step S1082 or step S1083, multiple infrared sensors 130 can continue collecting temperature value, re-execute Step S104 to step S108.

In addition, in some embodiments, if during abnormal storage space may be put into before and after temperature anomaly article, The temperature collection of other corresponding infrared sensors 130 of a certain storage space 140 also mutates, then can store up judging the exception It whether is put into temperature anomaly article in object space and then judges the corresponding storing of infrared sensor 130 of another mutation Whether space 140 is put into temperature anomaly article.Judge the corresponding storage space 140 of infrared sensor 130 of another mutation The method for whether being put into temperature anomaly article can be found in step S106 to step S108.

Fig. 7 is according to an embodiment of the invention for the detailed stream for whether being put into temperature anomaly article in refrigerator to be detected Cheng Tu.Wherein the quantity of infrared sensor 130 is three, acquires the temperature of three storage spaces 140 respectively.

Step S201, judges whether door body opens, if so, executing step S202.

Step S202, after delay y second, 3 infrared sensors 130 beginning collecting temperature value IR (1), and record acquisition time Number.Y is 2~3 seconds.

Step S204,3 infrared sensors 130, second of collecting temperature value IR (2), and record times of collection.

Step S206,3 infrared sensors 130, the H times collecting temperature value IR (H), and record times of collection.

Step S208, judge temperature value IR that any infrared sensor 130 currently acquires (H) with last time acquisition temperature value IR(H-1) absolute value of the difference whether be greater than mutation value A；If so, the temperature value for regarding as the infrared sensor 130 acquisition occurs Mutation executes step S210；If it is not, the temperature value for regarding as the acquisition of three infrared sensors 130 does not mutate, execute Step S209.In the present invention, if assert, the temperature value of some infrared sensor 130 acquisition is mutated, and means this The corresponding storage space 140 of infrared sensor 130 is likely to be put into temperature anomaly article, leads to the temperature of the storage space 140 Degree mutates.The infrared sensor 130 that the temperature value mutation of acquisition is identified as in step S208 is designated as first Infrared sensor, other two infrared sensors 130 are designated as the second infrared sensor and third infrared sensor.

Step S209, judges whether door body opens, if so, return step S206, continues to adopt three infrared sensors 130 Collect temperature value, and repeat to judge temperature value IR that any infrared sensor 130 currently acquires (H) with last time acquisition temperature value IR (H-1) absolute value of the difference whether be greater than mutation value A；If it is not, executing step S211.

Step S210 records 3 infrared sensors in the corresponding infrared sensor of abnormal storage space (the i.e. first infrared biography Sensor) temperature value that first appears continuous K acquisition is all satisfied the absolute value of the difference of the adjacent temperature value acquired twice less than the When one preset value, the temperature value IR of (it is the P times in total times of collection) acquisition 1 time last in the continuous K acquisition (P)；And start carry out temperature difference read group total, wherein sum (1)=IR (P+1)-IR(P), sum (2)=sum (1)+IR (P+2)- IR(P+1), and so on.

Step S211 judges that each storage space 140 is not put into temperature anomaly article.

Step S212,3 infrared sensors 130 continue collecting temperature value, continue temperature difference read group total.

Step S214, judge to occur in step S208 collection value IR (H) and collection value IR (H-1) absolute value of the difference it is big (i.e. the first infrared sensor, abnormal storage space is corresponding red in other words for the infrared sensor 130 in the mutation value A the case where Outer sensor) in the temperature value whether temperature value acquired later continuous N time acquisition occurs it is all satisfied the exhausted of adjacent difference twice To value less than the first preset value B, if so, executing step S216.

Step S216, recording 3 infrared sensors 130, (it is in total times of collection for the first time in continuous N time acquisition The Q times) collection value IR (Q)；And carry out last time temperature difference read group total.Can with IR1 (Q) indicate second temperature value；Use sum (N) result of last time temperature difference read group total is indicated.

Step S218, judge IR1 (Q)-IR1(P) whether-sum (N) greater than the second preset value C, if so, thening follow the steps S220；If it is not, thening follow the steps S219.In step S218, existed using the abnormal storage space that the first infrared sensor acquires The temperature and the temperature before it may be put into temperature anomaly article that may be put into when temperature anomaly article tends towards stability later Difference is compared with sum (N), if the difference of the two is greater than the second preset value, thens follow the steps S220, assert that first is red Temperature anomaly article is put into the corresponding abnormal storage space of outer sensor；If it is default that the difference of the two is less than or equal to second Value thens follow the steps S219, assert in the corresponding abnormal storage space of the first infrared sensor and is not put into temperature anomaly article.

After step S220 and step S219, it can return to and execute step S201.

In some embodiments, after step S220, capable of emitting prompting, such as light the corresponding exception storage space Indicator light, to remind user to be put into temperature anomaly article in the storage space 140.

In further embodiments, the judging result of step S218 can be sent to the master control borad of refrigerator, participate in refrigerator system The control of cooling system.For example, then making refrigeration system when judging result is to be put into temperature anomaly article in a certain storage space 140 More cooling capacity are provided to the storage space 140, so that its temperature is reduced to default storage temperature as early as possible.Utilize the present embodiment The method that temperature anomaly article whether is put into detection refrigerator, can timely and effectively carry out refrigeration control, avoid high temp objects Influence to storage space 140 around, improves the hoarding effect of cold compartment of refrigerator, reduces the nutrition loss of food, avoids simultaneously Waste of energy caused by freezing to entire storage room indistinction.

In addition, in some embodiments, judging whether the corresponding storage space 140 of the first infrared sensor is put into temperature After exception items, judge whether the temperature value of second, third infrared sensor acquisition mutates using step S208, thus Further judge whether be put into temperature anomaly article in the corresponding storage space 140 of second, third infrared sensor.Detailed process It can refer to step S210 to step S219 or to step S220.

In an illustrative embodiment, the quantity of infrared sensor 130 is 3, respectively the first infrared sensor, Second infrared sensor, third infrared sensor acquire the temperature of three storage spaces 140 respectively；Three storage spaces 140 Temperature is set as 5 DEG C.Enabling above-mentioned mutation value is 0.6 DEG C, and the first preset value is 0.4 DEG C, and the second preset value is 0.8 DEG C, K=3, M=4.

After enabling, 3 infrared sensors 130 start collecting temperature value after the 2nd second.Wherein, the first infrared sensor the 1st time The temperature value that the temperature value of acquisition is 5.1 DEG C, the temperature values of the 2nd acquisition are 5.2 DEG C, the 3rd time acquisitions is 5.4 DEG C, the 4th is adopted The temperature value that the temperature value of collection is 5.6 DEG C, the temperature value of the 5th acquisition is 5.9 DEG C, the 6th time acquisitions is 6.2 DEG C, the 7th time and acquires Temperature value be 6.9 DEG C, the temperature values that the temperature values of the 8th acquisition are 7.6 DEG C, the 9th time acquisitions are 8.2 DEG C, the 10th acquisition Temperature value be 8.8 DEG C, the temperature value that the temperature values of the 11st acquisition are 9.3 DEG C, the 12nd time acquisitions is 9.6 DEG C, the 13rd time and adopts The temperature values that the temperature value of collection is 9.9 DEG C, the temperature values of the 14th acquisition are 10.2 DEG C, the 15th time acquisitions are 10.4 DEG C ....

The temperature value of second infrared sensor the 1st time acquisition is that the temperature value of 5.2 DEG C, the 2nd time acquisitions is 5.3 DEG C, the 3rd time The temperature value of acquisition is 5.5 DEG C, the temperature value of the 4th acquisition is 5.7 DEG C, the temperature value of the 5th acquisition is 5.9 DEG C, the 6th time and adopts The temperature value of collection is that the temperature values that 6.2 DEG C, the 7th time temperature values acquired are 6.4 DEG C, the 8th time acquisitions are 6.6 DEG C, the 9th acquisition Temperature value be 6.8 DEG C, the temperature value that the temperature values of the 10th acquisition are 7.1 DEG C, the 11st time acquisitions is 7.3 DEG C, the 12nd time and adopts The temperature value of collection is that the temperature value that the temperature value of 7.6 DEG C, the 13rd time acquisitions is 7.9 DEG C, the 14th time acquisitions is 8.2 DEG C, the 15th time The temperature value of acquisition be 8.4 DEG C ....

The temperature value of third infrared sensor the 1st time acquisition is that the temperature value of 5.1 DEG C, the 2nd time acquisitions is 5.3 DEG C, the 3rd time The temperature value of acquisition is 5.4 DEG C, the temperature value of the 4th acquisition is 5.6 DEG C, the temperature value of the 5th acquisition is 5.9 DEG C, the 6th time and adopts The temperature value of collection is that the temperature values that 6.1 DEG C, the 7th time temperature values acquired are 6.4 DEG C, the 8th time acquisitions are 6.6 DEG C, the 9th acquisition Temperature value be 6.9 DEG C, the temperature value that the temperature values of the 10th acquisition are 7.1 DEG C, the 11st time acquisitions is 7.4 DEG C, the 12nd time and adopts The temperature value of collection is that the temperature value that the temperature value of 7.7 DEG C, the 13rd time acquisitions is 7.9 DEG C, the 14th time acquisitions is 8.1 DEG C, the 15th time The temperature value of acquisition be 8.3 DEG C ....

According to above-mentioned collection result, it is known that the first infrared sensor the adjacent temperature acquired twice occurs in the 7th acquisition The case where absolute value of the difference of angle value is greater than mutation value (i.e. | 6.9 DEG C -6.2 DEG C | > 0.6 DEG C, H=7), the first infrared sensor pair The storage space 140 answered is abnormal storage space, it is possible to can be put into the storage space 140 of temperature anomaly article.

The absolute value of the difference that first infrared sensor meets the adjacent temperature value acquired twice since the 2nd acquisition is less than The case where first preset value (the 2nd time acquisition temperature value with the 1st time acquire temperature value absolute value of the difference less than 0.4 DEG C, i.e., | 5.2 DEG C -5.1 DEG C | < 0.4 DEG C), and the absolute value of the difference for meeting the continuous 3 times adjacent temperature values acquired twice is acquired to the 4th The case where less than the first preset value, then records first infrared sensor last 1 acquisition (i.e. the 4th in continuous 3 times acquisitions Acquisition, P=4) temperature value as the first temperature value.First infrared sensor meets since the 12nd acquisition adjacent to be adopted twice The case where absolute value of the difference of the temperature value of collection is less than the first preset value (temperature value of the 12nd acquisition and the temperature of the 11st acquisition The absolute value of the difference of angle value is less than 0.4 DEG C, i.e., | and 9.6 DEG C -9.3 DEG C | < 0.4 DEG C, Q=12), and it is continuous to the 15th acquisition satisfaction The case where absolute value of the difference of 4 adjacent temperature values acquired twice is less than the first preset value then records first infrared sensing The temperature value of device acquisition for the first time (i.e. the 12nd time acquisition) in continuous 4 times acquisitions is as second temperature value.Correspondingly, the first temperature Spend changing value=- 5.6 DEG C=4 DEG C of the-the first temperature value=9.6 DEG C of second temperature value.

Carry out the 1st temperature difference read group total: the first infrared sensor is in the difference for the temperature value that the 5th is acquired with the 4th 0.3 < 0.4 DEG C, then sum (1)=IR1 (2)-IR1 (1)=0.3 DEG C；IR1 (2), IR1 (1) are respectively that the first infrared sensor exists The temperature value of the 5th and the 4th acquisition.

Carry out the 2nd temperature difference read group total: the first infrared sensor is in the difference for the temperature value that the 6th time and the 5th acquire 0.3 < 0.4 DEG C, then sum (2)=sum (1)+IR1 (3)-IR1 (2)=0.6 DEG C；IR1 (3), IR1 (2) are respectively the first infrared biography Sensor is in the 6th time and the temperature value of the 5th acquisition.

Carry out the 3rd temperature difference read group total: the difference for the temperature value that the first infrared sensor is acquired at the 7th time and the 6th time is 0.7>0.4 DEG C, the difference for the temperature value that the second infrared sensor is acquired at the 7th time with the 6th time is 0.2<0.4 DEG C, the infrared biography of third The difference for the temperature value that sensor is acquired at the 7th time with the 6th time is 0.3 < 0.4 DEG C, then sum (3)=sum (2)+(IR2 (4)-IR2 (3) + IR3 (4)-IR3 (3))/2=0.85 DEG C；IR2 (4), IR2 (3) are respectively the second infrared sensor in the 7th time and the 6th acquisition Temperature value, the temperature value that IR3 (4), IR3 (3), which are respectively third infrared sensor, to be acquired at the 7th time with the 6th time.

And so on, carry out last time (i.e. the 8th time) temperature difference read group total: the first infrared sensor is at the 12nd time and the The difference of the temperature value of 11 acquisitions is 0.3 < 0.4 DEG C, then sum (8)=sum (7)+IR1 (9)-IR1 (8)=2.1 DEG C；IR1(9), IR1 (8) is respectively the temperature value that the first infrared sensor is acquired at the 12nd time with the 11st time.

That is second temperature changing value=sum (8)=2.1 DEG C, therefore the first temperature change value and second temperature changing value - 2.1 DEG C of difference=4 DEG C=1.9 DEG C are greater than 0.8 DEG C of the second preset value, therefore judge the corresponding abnormal storage of the first infrared sensor Temperature anomaly article is put into object space.

Second infrared sensor and third infrared sensor do not occur phase during the 1st acquisition is acquired to the 15th time The absolute value of the difference for the temperature value that neighbour acquires twice is greater than the case where mutation value.Therefore in infrared sensor the 1st time acquisition to the 15th During secondary acquisition, do not put in the corresponding storage space of the second infrared sensor and the corresponding storage space of third infrared sensor Enter temperature anomaly article.

So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all such other variations or modifications.

Claims

1. it is a kind of for detecting the method for whether being put into temperature anomaly article in refrigerator, wherein the refrigerator includes: internal division For multiple storage spaces cabinet, the door body of the cabinet front is set and respectively to the temperature of the multiple storage space Spend the multiple infrared sensors sensed, which is characterized in that the described method includes:

If there are the abnormal storage spaces for judgement, the abnormal storage space is obtained before it may be put into temperature anomaly article Rear the first temperature change value and its before and after it may be put into temperature anomaly article due to carrying out hot friendship between external environment and its Second temperature changing value caused by changing, wherein first temperature change value, which is equal to the abnormal storage space, may be put into temperature The difference of second temperature value and the first temperature value that may be put into before temperature anomaly article after spending exception items, and work as the exception The corresponding infrared sensor of storage space is all satisfied the adjacent temperature acquired twice in the temperature value for first appearing continuous K acquisition When the absolute value of the difference of value is less than the first preset value, the temperature value conduct of any one acquisition in the continuous K acquisition First temperature value, wherein K >=3；And

Judge whether be put into the abnormal storage space according to first temperature change value and the second temperature changing value Temperature anomaly article.

2. according to the method described in claim 1, wherein judging in the multiple storage space with the presence or absence of the abnormal storing Space, comprising:

During the door body is opened, if adjacent acquiring twice occurs in any infrared sensor in the multiple infrared sensor Temperature value absolute value of the difference be greater than preset mutation value the case where, then judge that there are described different in the multiple storage space Normal storage space, and each absolute value of the difference for the adjacent temperature value acquired twice occur is greater than the infrared sensing of the mutation value The corresponding storage space of device is the abnormal storage space；

During the door body is opened, if the absolute value of the difference of the adjacent temperature value acquired twice of each infrared sensor is equal Less than or equal to the mutation value, then judge that there is no the abnormal storage spaces in the multiple storage space, wherein described prominent Variate is more than or equal to first preset value.

3. according to the method described in claim 2, the step of wherein obtaining the second temperature value includes:

When the corresponding infrared sensor of the exception storage space is in the absolute value of the difference for the adjacent temperature value acquired twice occur Greater than after the mutation value, occur continuous N time acquisition temperature value be all satisfied the adjacent temperature value acquired twice difference it is exhausted When being less than first preset value to value, the temperature value of any one acquisition is as described the in the continuous N time acquisition Two temperature values, wherein M >=3.

4. according to the method described in claim 3, wherein

The corresponding infrared sensor of the exception storage space in the continuous K acquisition for the first time or last time acquires Temperature value is as first temperature value；And

The corresponding infrared sensor of the exception storage space in the continuous N time acquisition for the first time or last time acquisition Temperature value is as the second temperature value.

5. according to the method described in claim 1, wherein according to temperature difference sum formula sum (n)=sum (n-1)+IR (n+1)-IR (n) the calculating second temperature changing value, (0)=0 sum when wherein temperature difference read group total starts, and

If the corresponding infrared sensor of the exception storage space may be put into temperature anomaly object in the abnormal storage space The absolute value of the difference of the temperature value of (n+1)th time and n-th acquisition is less than the first preset value during before and after product, then IR (n+1) and IR It (n) is respectively that the corresponding infrared sensor of the abnormal storage space in the abnormal storage space may be put into temperature anomaly object (n+1)th temperature value acquired with n-th during before and after product,

If the corresponding infrared sensor of the exception storage space may be put into temperature anomaly object in the abnormal storage space The absolute value of the difference of (n+1)th temperature value acquired with n-th is greater than or equal to first preset value during before and after product, and deposits In the temperature value that (n+1)th time during the abnormal storage space may be put into before and after temperature anomaly article and n-th acquire Absolute value of the difference is less than other infrared sensors of first preset value, then when the quantity of other infrared sensors is one When a, IR (n+1) and IR (n) are respectively that other described infrared sensors in the abnormal storage space may be put into temperature anomaly (n+1)th temperature value acquired with n-th during before and after article；When the quantity of other infrared sensors is two or more When, IR (n+1) and IR (n) are respectively that in the abnormal storage space may to be put into temperature different for other any described infrared sensors During before and after normal article the temperature value or IR (n+1) and IR (n) of (n+1)th time and n-th acquisition be respectively all described in other are red Outer sensor (n+1)th temperature acquired with n-th during the abnormal storage space may be put into before and after temperature anomaly article The average value of angle value；

If each infrared sensor is (n+1)th during the abnormal storage space may be put into before and after temperature anomaly article The absolute value of the difference of the temperature value of secondary and n-th acquisition is all larger than or is equal to first preset value, then sum (n)=sum (n- 1)。

6. according to the method described in claim 5, wherein

When the corresponding infrared sensor of the exception storage space carries out the acquisition of first temperature value, each infrared biography Sensor carries out the 1st acquisition during the abnormal storage space may be put into before and after temperature anomaly article；

When the corresponding infrared sensor of the exception storage space carries out the acquisition of the second temperature value, each infrared biography Sensor carries out last 1 acquisition during the abnormal storage space may be put into before and after temperature anomaly article；

Utilize the infrared sensor the 2nd acquisition during the abnormal storage space may be put into before and after temperature anomaly article Temperature value and the 1st time acquisition temperature value carry out first time temperature difference read group total；

It is adopted for last 1 time during the abnormal storage space may be put into before and after temperature anomaly article using the infrared sensor The temperature value of the temperature value of collection and last acquisition, carries out last time temperature difference read group total；And

7. according to the method described in claim 2, wherein according to first temperature change value and the second temperature changing value Judge that the step of whether being put into temperature anomaly article in the abnormal storage space includes:

Wherein second preset value is more than or equal to the mutation value.

8. according to the method described in claim 1, wherein the quantity of the infrared sensor is three or more.

9. according to the method described in claim 1, wherein controlling the multiple infrared sensor collecting temperature value is in the door It is carried out after body one preset time of unlatching.

10. according to the method described in claim 1, further include:

If judging to be put into temperature anomaly article in the abnormal storage space, issues vision and/or audible signal reminds user； And/or

If judgement there is no the abnormal storage space, judges that the multiple storage space is not during the door body is opened It is put into temperature anomaly article.