CN112179036B - Method and device for calculating refrigerator environment temperature - Google Patents
Method and device for calculating refrigerator environment temperature Download PDFInfo
- Publication number
- CN112179036B CN112179036B CN201910604742.8A CN201910604742A CN112179036B CN 112179036 B CN112179036 B CN 112179036B CN 201910604742 A CN201910604742 A CN 201910604742A CN 112179036 B CN112179036 B CN 112179036B
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- temperature
- compartment
- calculating
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Abstract
The invention discloses a method and a device for calculating the ambient temperature of a refrigerator, wherein the method comprises the following steps: acquiring the power failure starting time and the power failure duration delta t of the place where the refrigerator is located, and calculating the ambient temperature X0 of the refrigerator at the power failure starting time; according to the X0 and the delta T, calculating the highest compartment temperature Tmax which needs to be reached by the compartment of the refrigerator before the power failure starting time when the compartment temperature is not lower than the early warning temperature T0 during the power failure; obtaining a lowest compartment temperature Tmin attainable by said compartment of the refrigerator, refrigerating said compartment of the refrigerator to Tmax before a blackout start time if Tmax is greater than or equal to Tmin, otherwise refrigerating said compartment of the refrigerator to Tmin before the blackout start time. According to the scheme provided by the invention, the refrigerator is pre-refrigerated before power failure through the power failure information acquired in advance, so that the influence of the power failure on food in the refrigerator is reduced as much as possible.
Description
Technical Field
The invention relates to the field of household appliance control, in particular to a method and a device for calculating the ambient temperature of a refrigerator.
Background
With the social development, the living standard of people is increasingly improved, and the pace of life of people is faster and faster, people often buy a large number of articles to place in the refrigerator, and the refrigerator gradually becomes one of the essential household appliances in the life of people.
The power failure has great influence on various household appliances, particularly refrigerators, and the refrigerators can stop to refrigerate after the power failure. In addition, the ambient temperature of the refrigerator has a great influence on the temperature of the compartment inside the refrigerator. After the environment temperature of the refrigerator is determined, the change of the room temperature along with the time after the refrigerator is stopped has certain regularity. How to accurately calculate the ambient temperature of the refrigerator during power failure so as to calculate the compartment temperature of the refrigerator after power failure, and therefore, the state of food stored in the compartment is judged.
Disclosure of Invention
The invention aims to provide a method and a device for calculating the ambient temperature of a refrigerator.
In order to achieve one of the above objects, an embodiment of the present invention provides a method for calculating an ambient temperature of a refrigerator, the method including:
acquiring the current forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days;
calculating the difference value of subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the previous N days according to the historical operation data of the refrigerator;
calculating the ambient temperature X0 of the refrigerator at the power failure starting time according to the difference and the forecast temperature of the day;
when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t);
acquiring the temperature Y1 of the compartment of the refrigerator before power failure, and calculating the temperature Y2 of the compartment of the refrigerator after the accumulated shutdown time delta t;
and acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, sending early warning information to a pre-bound terminal of the refrigerator.
As a further improvement of an embodiment of the present invention, the "calculating the ambient temperature X0 at the time of the power failure start of the refrigerator by using the difference and the forecast temperature of the day" specifically includes:
calculating the maximum value Deltax in the difference values;
judging whether the delta X is more than or equal to 0, if so, X0 equals to the current forecast temperature + delta X, otherwise, X0 equals to the current forecast temperature
As a further improvement of an embodiment of the present invention, the "calculating the ambient temperature X0 at the time of the power failure start of the refrigerator by using the difference and the forecast temperature of the day" specifically includes:
calculating an average value Δ x of the difference values;
x0 is the daily forecast temperature + Δ X.
As a further improvement of an embodiment of the present invention, the "when the ambient temperature is determined to be X0, the formula y ═ f (t)" of the refrigerator compartment temperature y and the time t "specifically includes:
searching a corresponding formula set [ y1 ═ f (t1).. yM ═ f (tM) ] according to the type of the refrigerator;
searching for a small section of the environmental temperature where the environmental temperature X0 is located;
and obtaining a corresponding formula y ═ f (t) of the small section of the environment temperature, wherein y represents the temperature of the compartment, and t represents time.
As a further improvement of an embodiment of the present invention, the "when the ambient temperature is determined to be X0, the formula y ═ f (t)" of the refrigerator compartment temperature y and the time t "specifically includes:
collecting data of the compartment temperature y and the accumulated shutdown time t of the compartment in a preset time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state in the historical operation data of the refrigerator, and fitting the data into a formula: and y ═ f (t).
In order to achieve one of the above objects, an embodiment of the present invention provides an apparatus for calculating an ambient temperature of a refrigerator, the apparatus including:
the communication module is used for acquiring the current forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days, and sending information to the pre-bound terminal;
the calculation module is used for calculating the difference value of subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the previous N days according to the historical operation data of the refrigerator; calculating the environmental temperature X0 of the refrigerator at the power failure starting time according to the difference and the current forecast temperature; and when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t); acquiring the temperature Y1 of the chamber of the refrigerator before power failure, and calculating the temperature Y2 of the chamber of the refrigerator after the accumulated stop time delta t;
and the control module is used for acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, the control module controls the communication module to send early warning information to a pre-bound terminal of the refrigerator.
As a further improvement of an embodiment of the present invention, the computing module is further configured to:
calculating the maximum value Deltax in the difference values;
and judging whether the delta X is larger than or equal to 0, if so, X0 is the daily predicted temperature + delta X, and otherwise, X0 is the daily predicted temperature.
As a further improvement of an embodiment of the present invention, the computing module is further configured to:
the average value ax of the difference values is calculated,
x0 is the daily forecast temperature + Δ X.
As a further improvement of an embodiment of the present invention, the computing module is further configured to:
searching for a small section of the environmental temperature where the environmental temperature X0 is located;
and obtaining a corresponding formula y ═ f (t) of the small section of the environment temperature, wherein y represents the temperature of the compartment, and t represents time.
As a further improvement of an embodiment of the present invention, the computing module is further configured to:
collecting data of the compartment temperature y and the accumulated shutdown time t of the compartment in a preset time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state in the historical operation data of the refrigerator, and fitting the data into a formula: and y ═ f (t).
The invention has the advantages that:
according to the method for calculating the refrigerator environment temperature, the environment temperature X0 of the refrigerator at the power failure starting time is calculated according to the difference value obtained by subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the last N days and the forecast temperature of the same day. After the X0 is accurately calculated, the change curve of the temperature of the compartment in the refrigerator can be more accurately determined, so that the state of food stored in the compartment can be judged.
Drawings
Fig. 1 is a flowchart illustrating a refrigerator management method according to a first embodiment of the present invention.
Fig. 2 is a flowchart illustrating a method for controlling precooling of a refrigerator according to a second embodiment of the present invention.
Fig. 3 is a flowchart illustrating a method for calculating a temperature of a refrigerator compartment according to a third embodiment of the present invention.
Fig. 4 is a flowchart illustrating a method for calculating an ambient temperature of a refrigerator according to a fourth embodiment of the present invention.
FIG. 5 is a functional block diagram of an apparatus in accordance with an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
The refrigerator is developing intelligently all the time, more and more refrigerators are provided with WiFi to be networked, a factory manufacturer of the refrigerator establishes a server at the background, the refrigerator can communicate with the server, and the refrigerator regularly uploads running data of the refrigerator to the server, such as a door opening and closing state, an ambient temperature, a room temperature, a refrigeration state, a compressor state, a fan state, a defrosting state and the like. The server can store the relevant information such as the model of each refrigerator and the historical operation data.
Therefore, in an embodiment of the present invention, the server determines the power-off state of the refrigerator by whether the server receives the operation data uploaded by the refrigerator within a predetermined time interval.
After the refrigerator is powered off, two main factors influencing the temperature of the compartment in the refrigerator are as follows: ambient temperature and hermeticity. The sealing performance of the refrigerator is related to the structure and the preparation process of the refrigerator, so that the sealing performance of the refrigerator of the same model is not different greatly and the difference is basically negligible.
The higher the ambient temperature, the faster the rate of rise of the compartment temperature without changing the sealing properties. Under the condition that the temperature of the compartment and the time of the compartment are basically unchanged, the change of the temperature of the compartment along with the time has a certain rule, namely, the relation between the temperature of the compartment and the time can be determined through a specific formula y ═ f (t), wherein y represents the temperature of the compartment, t represents the time, and y and t are in one-to-one correspondence relation, and t in the formula only represents the time and does not refer to the accumulated time of the shutdown. Therefore, in order to make y ═ f (t) closer to the actual room temperature change condition, in a preferred embodiment of the present invention, a formula of the room temperature change with time corresponding to the environment temperature section is fitted through data acquisition of the same environment temperature section after the refrigerator is stopped, different environment temperature sections have different fitted formulas, and the formulas are stored, the process is formula presetting, and after the refrigerator is stopped subsequently, the formula corresponding to the environment temperature section where the specific environment temperature is located can be searched from the preset formulas.
In an embodiment of the present invention, the refrigerator is provided with a network locator, and the server may obtain a location of the refrigerator, and obtain weather forecast information of the location through the network, or obtain whether the location issues related power failure information, or the like.
It should be noted that the refrigerator shutdown of the present invention refers to a refrigerator shutdown caused by a power failure or power failure of the refrigerator due to a compressor of the refrigerator stopping, and the refrigerator may also be briefly shutdown after the compartment temperature of the refrigerator reaches a preset temperature.
In one embodiment of the present invention, each compartment (freezing compartment or refrigerating compartment) of the refrigerator is provided with a corresponding early warning temperature, and when the compartment temperature of the refrigerator exceeds the early warning temperature Y0 corresponding to the compartment, the state of food in the compartment is easily changed, and particularly, the food with relatively high temperature requirement is easily damaged or deteriorated. For example, when the temperature of the freezing chamber exceeds the warning temperature, the frozen meat in the freezing chamber is thawed, and blood may seep out, and the food such as ice cream, etc. may be melted into a liquid state. Similarly, when the temperature in the refrigerating chamber exceeds the early warning temperature, the fresh-keeping effect of the refrigerating chamber is greatly reduced, and foods (such as cooked foods, milk, probiotics and the like) with high temperature requirements in the refrigerating chamber are easy to deteriorate.
As shown in fig. 1, in a first embodiment of the present invention, a method for controlling a stop of a refrigerator includes:
when the operation data of the refrigerator are not received in a preset time interval, calculating the current environment temperature X0 of the refrigerator;
calculating the time delta t required by the compartment temperature to reach an early warning temperature Y0 according to the environment temperature X0 and the acquired latest refrigerator compartment temperature Y1;
and if the operation data of the refrigerator are not received within the delta t, sending early warning information to a pre-bound terminal.
In this embodiment, the server finds that the operation data of the refrigerator is not received within the predetermined time interval, determines that the refrigerator is in the power-off state, and calculates the ambient temperature X0 of the refrigerator at this time, it should be noted that the ambient temperature of the refrigerator may be the ambient temperature in the operation data of the refrigerator that the server has received last time, or may be estimated by the weather forecast information at the location of the refrigerator and the historical ambient temperature of the refrigerator, and the specific estimation of the ambient temperature may be referred to as the fourth embodiment of the present invention.
And then calculating the time delta t required by the compartment temperature Y of the refrigerator to reach the early warning temperature Y0 according to the environment temperature X0 and the latest compartment temperature Y1 of the refrigerator. The specific process can be as follows: determining a formula y ═ f (t) of the compartment temperature y and the time t of the refrigerator according to the environment temperature X0; the early warning temperature Y0 of the refrigerator and the latest compartment temperature Y1 are respectively substituted into Y in the formula Y ═ f (T), the corresponding values T0 and T1 of T are calculated, and then the time delta T required by the compartment temperature from Y1 to Y0 is calculated as T0-T1. That is, after the refrigerator is stopped, the compartment temperature rises from Y1 to the warning temperature Y0, and a time Δ t is required.
And when the temperature of the compartment exceeds the early warning temperature Y0, the food stored in the compartment is damaged, so if the operation data of the refrigerator is not received in the delta t, alarm information is sent to a pre-bound terminal, wherein the pre-bound terminal can be a mobile phone, an ipad and the like of a user, and after the user receives the alarm information, the food in each compartment of the refrigerator can be checked.
In the embodiment, the power failure of the refrigerator is judged by interrupting data interaction between the refrigerator and the server, and then the change curve of the temperature of the compartment along with the time is determined by the ambient temperature, so that the food is pre-judged for a long time after the refrigerator is cut off, a user can clearly know whether the food in the refrigerator is influenced during the power failure, if the food is not influenced, the user can use the food in the refrigerator at ease, and if the food is influenced, the user can specifically check the deterioration condition of the food in the refrigerator.
It should be noted that the data uploading of the refrigerator of the present invention is not limited to the server, and may be other devices that can communicate with the refrigerator and can store the refrigerator operation data.
Further, there are various methods for determining the formula y ═ f (t) of the compartment temperature y and the time t of the refrigerator according to the ambient temperature X0, for example, after determining the ambient temperature X0, data of the variation with time of the compartment temperature in the non-cooling state (or the shutdown state) of the refrigerator and at the ambient temperature X0 may be collected from historical operation data of the refrigerator, and then the formula y ═ f (t) of the compartment temperature y and the time t of the refrigerator may be fitted by these data. Before the refrigerator is powered off, the fitted formulas of the compartment temperature and the time corresponding to the environment temperature sections are stored in the server, and after the environment temperature is determined to be X0, the formula y (f) (t) of the compartment temperature y and the time t of the refrigerator corresponding to the environment temperature section where X0 is located is searched. For a method of determining a specific formula, reference may be made to the third embodiment of the present invention.
Further, the present embodiment further includes: and sending a notice of networking failure or power failure to the user to request the user to check if the operation data of the refrigerator is not received within a preset time interval.
Further, the present embodiment further includes: after the delta t is calculated, the early warning information is directly sent to the terminal, so that a user can know that after the delta t, if the refrigerator cannot recover power, food in the refrigerator can be damaged, and therefore the user can take out some food with high temperature requirements in advance to eat, and waste is avoided.
As shown in fig. 2, in a second embodiment of the present invention, a method for controlling precooling of a refrigerator includes:
acquiring the power failure starting time and the power failure duration delta t of the place where the refrigerator is located, and calculating the ambient temperature X0 of the refrigerator at the power failure starting time;
according to the X0 and the delta T, calculating the highest compartment temperature Tmax which needs to be reached by the compartment of the refrigerator before the power failure starting time when the compartment temperature is not lower than the early warning temperature T0 during the power failure;
obtaining a lowest compartment temperature Tmin attainable by said compartment of the refrigerator, refrigerating said compartment of the refrigerator to Tmax before a blackout start time if Tmax is greater than or equal to Tmin, otherwise refrigerating said compartment of the refrigerator to Tmin before the blackout start time.
In a first embodiment, the server finds the outage and then makes a prejudgment on the compartment temperature. In the present embodiment, the refrigerator is precooled by the power failure information acquired in advance.
Firstly, a server inquires the location of a refrigerator through a network to release power failure information, specifically including power failure starting time, power failure ending time and the like, through the information, the power failure duration can be calculated, and then the environment temperature X0 of the refrigerator at the power failure starting time is calculated.
And then calculating the maximum compartment temperature Tmax which needs to be reached by the refrigerator before power failure when the compartment temperature T is not lower than the early warning temperature T0 during the power failure according to the environment temperature X0 and the power failure time delta T.
On the premise of ensuring that food is not damaged, the temperature of the compartment before power failure is Tmax, and the temperature of the compartment at the last moment of power failure is early warning temperature T0, so that the refrigerator is most energy-saving and environment-friendly. The specific process can be as follows: determining a formula y ═ f (t) of the compartment temperature y and the time t of the refrigerator according to the environment temperature X0; acquiring an early warning temperature Y0 of the refrigerator, substituting the Y0 into Y in the formula Y ═ f (T), calculating a corresponding value T0 of T, substituting the T1 ═ T0- Δ T into the T in the formula Y ═ f (T), calculating a corresponding value Y1 of Y, and substituting the T1 into the T in the formula Y ═ f (T), wherein the Y1 is the maximum compartment temperature Tmax required to be reached by the refrigerator before power failure.
And finally, acquiring the lowest compartment temperature Tmin which can be reached by the refrigerators, wherein each refrigerator has a refrigeration limit, and the Tmin is the lowest limit of the temperature which can be reached by the refrigerator. When Tmax is greater than or equal to Tmin, it is indicated that cooling to Tmax is achievable, and therefore the refrigerator compartment is cooled to Tmax prior to a power outage, otherwise the refrigerator compartment is cooled to Tmin prior to a power outage.
In the embodiment, because the power failure information is obtained in advance, in order to ensure that food is not damaged (the compartment temperature is not lower than the early warning temperature) during the power failure, the refrigerator is precooled before the power failure, so that the loss of a user is avoided. Of course, when the pre-cooling temperature is a temperature that cannot be reached by the refrigerator (lower than the minimum compartment temperature Tmin that can be reached by the refrigerator), the pre-cooling of the refrigerator to Tmin before the power failure is performed, so that the loss of the refrigerator is reduced as much as possible.
In the present embodiment, reference is made to the first embodiment for the calculation of the ambient temperature X0 and the determination of the formula y ═ f (t).
Further, the control method according to the present embodiment may further include the steps of:
when Tmax is smaller than Tmin, early warning information is sent to the pre-bound terminal, and after the user receives the early warning information, the user can make response preparation in advance, for example, some foods with high requirements on temperature can be taken out in advance for eating, so that waste is avoided.
Further, the control method according to the present embodiment may further include the steps of:
when Tmax is less than Tmin, the time for the temperature of the compartment to rise from Tmin to the early warning temperature T0 after the refrigerator is shut down is calculated, and the time information is transmitted to the user.
Further, the control method according to the present embodiment may further include the steps of:
and when the power failure information is issued at the location of the refrigerator through network inquiry, sending a power failure notification to a user.
In a third embodiment of the present invention, as mentioned above, under the condition that the ambient temperature and the sealing performance of the refrigerator are kept basically unchanged, the change of the compartment temperature with time is regular, so in this case, data of a plurality of groups of compartment temperatures y and the accumulated time period of shutdown t can be collected, and then the data is fitted to obtain a formula y ═ f (t), where the formula has only two variables y and t, y represents the compartment temperature, t represents time only and does not refer to the accumulated time period of shutdown, f can be a function of an exponent, a polynomial or the like, and preferably f is a polynomial, and as a result of a plurality of experiments, the inventor finds that when f is a polynomial, the formula is closer to the actual situation.
It should be noted that the fitting is a curve fitting, and the curve fitting is a prior art, and the data can be fitted by a fitting program carried in an execl table, which is not specifically described here. In addition, the collection process is as follows: during a predetermined time period (such as 30 minutes) when the refrigerator is stopped, a set of data is collected at regular time intervals (for example, 1 minute), and finally, the collection is finished, so that (the predetermined time period/the regular time interval +1) sets of data can be obtained (for example, the data is collected within 30 minutes, and is collected once every 1 minute, and 31 sets of data can be collected). As does the data acquisition involved in the subsequent invention.
When the ambient temperature is determined to be X0, the time Δ T required for the compartment temperature to rise from Y1 to Y2 can be calculated according to the formula, that is, Y1 and Y2 are respectively substituted into Y in the formula Y ═ f (T), so that the values T1 and T2 corresponding to T can be calculated, and Δ T ═ T2-T1 can be calculated.
Conversely, when the compartment temperature is Y1, the compartment temperature Y2 after the compartment passes Δ T may be calculated, that is, Y1 may be substituted into Y in the formula Y ═ f (T), and the value T1 of the corresponding T may be calculated, T2 may be substituted into T1+ Δ T, and T2 may be substituted into T in the formula Y ═ f (T), and the value Y2 of the corresponding Y may be calculated, and Y2 may be the compartment temperature after the compartment passes Δ T.
Similarly, if the power-off time Δ t is known in advance, the compartment temperature of the refrigerator needs to be kept above Y2 after the power-off is finished, and the temperature Y1 required to be cooled by the refrigerator before the power-off can be calculated. That is, Y2 is substituted into Y in the formula Y ═ f (T), and the corresponding value T2 of T is calculated, T1 is set to T2- Δ T, and T1 is substituted into T in the formula Y ═ f (T), and the corresponding value Y1 of Y is calculated, and Y1 is the temperature to which the compartment needs to be cooled before power failure.
It should be noted that, in the formula fitting process, after the ambient temperature X0 is determined, relevant data may be collected from historical operating data of the refrigerator for fitting, or data collection and fitting may be performed in advance, and then the formula is stored in the server, that is, formula presetting. There are various ways of presetting the specific formula, and the present invention may adopt one of the following ways.
The formula presetting mode is as follows: before the refrigerator leaves factory, data of temperature and shutdown time of various types of refrigerators at the time of power failure are collected, and then the data are fitted into a formula, and the formula is stored in a server. The specific processing procedure for a refrigerator of a certain model is as follows:
the preset ambient temperature section of the refrigerator is divided into M small sections [ X1... XM ]. Wherein M is a positive integer, X1... XM only represents a serial number, and in addition, the preset ambient temperature section of the refrigerator is artificially set and can be set according to historical data, such as 0-40 degrees.
When the refrigerator is in a shutdown state (for example, power-off processing), when the environment temperature of the refrigerator is [ X1... XM ], each set of data of the room temperature [ y1... yM ] and the shutdown accumulated time length [ t1.. tM ] corresponding to the environment temperature are respectively collected, and the sets of data are respectively fitted into a formula [ y1 ═ f (t1) ·. When the refrigerator is in a shutdown state, data of the room temperature y1 and the shutdown accumulated time t1 when the environment temperature of the refrigerator is small in X1 are collected and are fit into a formula y1 ═ f (t1). When the refrigerator is in a shutdown state, data of a room temperature y2 and a shutdown accumulated time t2 when the environment temperature of the refrigerator is X2 small segments are collected, and the data are fit into a formula y2 ═ f (t 2). By analogy, a formula set [ y1 ═ f (t 1.. yM ═ f (tm)) ] is obtained.
And storing the formula to a server according to the model of the refrigerator.
It should be noted that, because the shape, structure and preparation process of the refrigerator with the same model are the same, the sealing performance is basically consistent. Therefore, the collection of the fitting formula of a specific refrigerator can be searched subsequently according to the model. Then, according to the specific ambient temperature X0, find the formula y ═ f (t) of the room temperature y and the time t corresponding to the small segment of the ambient temperature at which X0 is located.
A formula presetting mode II: in the normal operation process of the refrigerator, when the refrigerator is in a shutdown state, data of the compartment temperature and the shutdown duration are collected, then the collected data are fitted into a formula, and the formula is stored in a server.
The specific data acquisition and fitting process can refer to a formula preset mode I. After a formula collection [ y1 ═ f (t 1.. yM ═ f (tm)) ] is obtained, the formula collection is stored in a server, and then the refrigerator can find a corresponding formula in the formula collection of the server.
It should be noted that, during normal operation of the refrigerator, after the compartment temperature reaches the preset temperature, the refrigerator may be temporarily stopped (the compressor stops working) until the compartment temperature rises to the starting point. In this preset mode, data is collected when the refrigerator is temporarily stopped.
Fig. 3 is a schematic flow chart of a method for calculating a temperature of a refrigerator compartment according to a third embodiment of the present invention, as shown in fig. 3, the method includes:
dividing an environment temperature section preset by the refrigerator into M small sections [ X1... XM ];
when the refrigerator is in a shutdown state, respectively collecting each group of data of a room temperature [ y1... yM ] and a shutdown accumulated time length [ t1.. tM ] corresponding to an ambient temperature when the ambient temperature of the refrigerator is [ X1... XM ], and respectively fitting the group of data into a formula [ y1 ═ f (t 1.. yM ═ f (tM)), wherein f represents a polynomial;
when the environmental temperature during the refrigerator shutdown is searched for to be X0, the formula y (f) (t) of the room temperature y and the time t corresponding to the small section of the environmental temperature where X0 is located is;
acquiring the temperature Y1 of the chamber of the refrigerator before shutdown, and calculating the temperature Y2 of the chamber of the refrigerator after the cumulative shutdown time delta t;
and acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, sending early warning information to a pre-bound terminal of the refrigerator.
In this embodiment, data acquisition and formula fitting are performed first to obtain a formula set [ Y1 ═ f (t 1.. yM ═ f (tm) ], then, a formula Y ═ f (t)) of a specific compartment temperature Y and time t is determined according to an ambient temperature X0, and then, a temperature Y2 reached by the compartment after an accumulated time period Δ t is calculated through the formula and the compartment temperature before the refrigerator is stopped. If Y2 is greater than the warning temperature Y0, indicating that the temperature of the compartment in the refrigerator is high, many stored foods are affected, and thus warning information is transmitted to a pre-binding terminal of the refrigerator to inform a user to check the state of the foods in the refrigerator. If Y2 is less than the warning temperature Y0, it indicates that the compartment temperature within the refrigerator is low and the stored food has not been affected. At this time, the time length required for the temperature of the refrigerator room to reach the early warning temperature Y0 can be calculated through a formula, and the time length is sent to a pre-bound terminal, so that a user can take measures in advance.
In a fourth embodiment of the present invention, a method for calculating an ambient temperature of a refrigerator is provided. The present embodiment is an ambient temperature of the refrigerator calculated by a difference between a weather forecast temperature and a historical ambient temperature and a historical weather forecast temperature under a condition that the ambient temperature of the refrigerator cannot be directly obtained. As shown in fig. 4, the calculation method includes:
acquiring the current forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days;
calculating the difference value of subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the previous N days according to the historical operation data of the refrigerator;
calculating the ambient temperature X0 of the refrigerator at the power failure starting time according to the difference and the forecast temperature of the day;
when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t);
acquiring the temperature Y1 of the compartment of the refrigerator before power failure, and calculating the temperature Y2 of the compartment of the refrigerator after the accumulated shutdown time delta t;
and acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, sending early warning information to a pre-bound terminal of the refrigerator.
In the embodiment, the ambient temperature X0 at the power failure starting time of the refrigerator is calculated according to the difference value obtained by subtracting the corresponding historical forecast temperature from the actual ambient temperature of the refrigerator at the power failure starting time within the previous N days and the forecast temperature of the current day. Since the refrigerator is generally placed indoors, the ambient temperature of the refrigerator has a certain deviation from the predicted temperature (outdoor temperature), and the air conditioner is started in the home in two seasons of winter and summer, the calculation method is more accurate compared with the method of directly using the predicted temperature.
After the environment temperature X0 of the refrigerator at the beginning of the power failure is accurately calculated, the change curve of the temperature of the compartment in the refrigerator can be more accurately determined, and therefore the state of food stored in the compartment can be judged. For a specific judgment process, reference may be made to the first to third embodiments, which are not described herein again.
The difference is the actual ambient temperature of the refrigerator at the power outage start time in the previous N days — the corresponding historical forecast temperature. For example, the actual ambient temperature of the refrigerator was 15 degrees and 18 degrees, respectively, during the previous 2 days, while the corresponding historical predicted temperatures were 16 degrees and 17 degrees, so the difference was-1 degree and 1 degree.
Further, the step of calculating the ambient temperature X0 at the time of the power failure start of the refrigerator according to the difference and the current forecast temperature specifically includes:
calculating the maximum value Deltax in the difference values;
and judging whether the delta X is larger than or equal to 0, if so, X0 is the daily predicted temperature + delta X, and otherwise, X0 is the daily predicted temperature.
Since the higher the ambient temperature is, the faster the room temperature of the refrigerator rises, in the present preferred embodiment, if Δ X > is 0 (for example, in winter), X0 is the same day forecast temperature + Δ X. If Δ X <0 (e.g., in summer), X0 is the current day's forecast temperature.
Further, the step of calculating the ambient temperature X0 at the time of the power failure start of the refrigerator according to the difference and the current forecast temperature specifically includes:
calculating an average value Δ x of the difference values;
x0 is the daily forecast temperature + Δ X.
In spring and autumn, the scheme can be adopted under the condition that the difference between the indoor environment temperature and the forecast temperature is not large.
As shown in fig. 5, in an embodiment of the present invention, the apparatus may be applied to the first to fourth embodiments described above.
For clarity and conciseness of description, only one drawing is used, and the device comprises a communication module 11, a storage module 13, a calculation module 15 and a control module 17. Of course, modules that are not used in the corresponding embodiments may be removed from the present apparatus, for example, in the third embodiment, the present control apparatus may only include the communication module 11, the storage module 13, and the calculation module 15. And so on.
Wherein, when the apparatus corresponds to the refrigerator management apparatus in the first embodiment described above, the apparatus includes:
a communication module 11 for receiving operation data of the refrigerator within a predetermined time interval and transmitting information to a pre-bound terminal;
the storage module 13 is used for storing the operation data of the refrigerator and the early warning temperature Y0 of the refrigerator, which are received by the communication module;
the calculating module 15 is used for calculating the current ambient temperature X0 of the refrigerator when the operation data of the refrigerator are not received within a preset time interval, and calculating the time delta t required by the compartment temperature to reach the early warning temperature Y0 according to the X0, the latest refrigerator compartment temperature Y1 and the early warning temperature Y0 which are obtained from the storage module;
and the control module 17 is used for controlling the communication module to send the refrigerator state information to the pre-bound terminal when the operation data of the refrigerator is not received within the delta t.
In the present embodiment, the communication module 11 receives operation data of the refrigerator for a predetermined time interval and stores the data into the storage module 13. When the communication module 11 does not receive the operation data uploaded by the refrigerator within a predetermined time interval, it is determined that the refrigerator is in a power-off state. The calculating module 15 calculates the current ambient temperature X0 of the refrigerator, and calculates the time Δ t required for the compartment temperature to reach the early warning temperature Y0 according to the X0, the latest refrigerator compartment temperature Y1 and the early warning temperature Y0 acquired from the storage module. After Δ t, if the communication module has not received the operation data of the refrigerator, the control module 17 controls the terminal pre-bound by the communication module to send the state information of the refrigerator.
In the embodiment, the power failure of the refrigerator is judged by interrupting data interaction with the refrigerator, then the environment temperature is calculated, and the change curve of the temperature of the compartment along with the time is determined, so that the damage of food in the refrigerator after the refrigerator is judged for a long time is judged in advance, a user can clearly know whether the food in the refrigerator is influenced during the power failure, if the food is not influenced, the user can use the food in the refrigerator safely, and if the food is influenced, the user can specifically check the deterioration condition of the food in the refrigerator
Further, in this embodiment, the communication module 11 is further configured to obtain a daily forecast temperature of a location of the refrigerator and a historical forecast temperature within N days before the location of the refrigerator;
the calculating module 15 is further configured to obtain current time, and calculate, according to the historical operating data in the storage module 13, a maximum value Δ x of the actual ambient temperature of the refrigerator minus a corresponding historical forecast temperature at the current time within the previous N days;
the calculating module 15 is further configured to set the X0 to the daily predicted temperature + Δ X when the Δ X is greater than or equal to 0, and set the X0 to the daily predicted temperature when the Δ X is less than 0.
Further, in this embodiment, the communication module 11 is further configured to obtain a daily forecast temperature of a location of the refrigerator and a historical forecast temperature within N days before the location of the refrigerator;
the calculating module 15 is further configured to obtain a current time, calculate an average value Δ X of a difference between the actual ambient temperature of the refrigerator and the corresponding historical predicted temperature at the current time within the previous N days according to the historical operating data of the refrigerator, and set the X0 to be the current-day predicted temperature + Δ X.
Further, in this embodiment, the calculating module 15 is further configured to:
from the historical operation data of the storage module 13, data of the compartment temperature y and the accumulated shutdown time t of the compartment within a predetermined time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state are collected, and the data are fitted into a formula: y ═ f (t);
and substituting the Y0 and the Y1 into Y in the formula Y-f (T) respectively, and calculating the corresponding values T0 and T1 of T, wherein the time delta T needed by the compartment temperature from Y1 to Y0 is T0-T1.
Further, in this embodiment, the calculating module 15 is further configured to:
dividing an environment temperature section preset by the refrigerator into M small sections [ X1... XM ];
when the refrigerator is in a shutdown state, respectively collecting each group of data of a room temperature [ y1... yM ] and a shutdown accumulated time [ t1.. tM ] corresponding to an ambient temperature when the ambient temperature of the refrigerator is [ X1... XM ], and respectively fitting the group of data into a formula [ y1 ═ f (t1) ·. yM ═ f (tM) ];
searching a formula y (f) (t) of the room temperature y and the time t corresponding to the small section of the environment temperature where the environment temperature of the refrigerator is X0;
and substituting the Y0 and the Y1 into Y in the formula Y-f (T) respectively, and calculating the corresponding values T0 and T1 of T, wherein the time delta T needed by the compartment temperature from Y1 to Y0 is T0-T1.
A second embodiment of the present invention is a control method of a preliminary cooling down of a refrigerator, which, when corresponding to the control device of the preliminary cooling down of a refrigerator in the second embodiment described above, includes:
the communication module 11 is used for acquiring the power failure starting time and the power failure duration delta t of the location of the refrigerator;
the calculating module 15 is used for calculating the ambient temperature X0 of the refrigerator at the power failure starting time, and calculating the maximum compartment temperature Tmax which needs to be reached by the compartment of the refrigerator before the power failure starting time when the compartment temperature is not lower than the early warning temperature T0 during the power failure according to the X0 and the delta T;
and the control module 17 is used for judging whether the Tmax is greater than or equal to the Tmin when the lowest achievable compartment temperature Tmin of the compartment of the refrigerator is obtained, if so, controlling the refrigerator to refrigerate the compartment to the Tmax before power failure, and otherwise, controlling the refrigerator to refrigerate the compartment to the Tmin before power failure.
In the present embodiment, the refrigerator is precooled by the power failure information acquired in advance. Firstly, the communication module 11 inquires through a network that power failure information, specifically including power failure starting time, power failure ending time and the like, is issued at the location of the refrigerator, then the power failure duration is calculated, and the calculation module 15 calculates the ambient temperature X0 of the refrigerator at the power failure starting time.
Then, the calculation module 15 calculates the maximum compartment temperature Tmax which needs to be reached by the refrigerator before power failure when the compartment temperature T is not lower than the early warning temperature T0 during the power failure according to the environment temperature X0 and the power failure duration Δ T.
On the premise of ensuring that food is not damaged, the temperature of the compartment before power failure is Tmax, and the temperature of the compartment at the last moment of power failure is early warning temperature T0, so that the refrigerator is most energy-saving and environment-friendly. The calculation process of the specific calculation module may be: determining a formula y ═ f (t) of the compartment temperature y and the time t of the refrigerator according to the environment temperature X0; acquiring an early warning temperature Y0 of the refrigerator, substituting the Y0 into Y in the formula Y ═ f (T), calculating a corresponding value T0 of T, substituting the T1 ═ T0- Δ T into the T in the formula Y ═ f (T), calculating a corresponding value Y1 of Y, and substituting the T1 into the T in the formula Y ═ f (T), wherein the Y1 is the maximum compartment temperature Tmax required to be reached by the refrigerator before power failure.
And finally, the control module acquires the lowest room temperature Tmin which can be reached by the refrigerators, each refrigerator has the refrigeration limit, and the Tmin is the lowest temperature limit which can be reached by the refrigeration of the refrigerator. Meanwhile, the control module judges that when Tmax is larger than or equal to Tmin, refrigeration to Tmax is realized, so that the control module controls the refrigerator to refrigerate the compartment to Tmax before power failure, otherwise, the control module controls the refrigerator to refrigerate the compartment to Tmin before power failure.
In the embodiment, because the power failure information is obtained in advance, in order to ensure that food is not damaged (the compartment temperature is not lower than the early warning temperature) during the power failure, the refrigerator is precooled before the power failure, so that the loss of a user is avoided. Of course, when the pre-cooling temperature is a temperature that cannot be reached by the refrigerator (lower than the minimum compartment temperature Tmin that can be reached by the refrigerator), the pre-cooling of the refrigerator to Tmin before the power failure is performed, so that the loss of the refrigerator is reduced as much as possible.
In the present embodiment, reference is made to the first embodiment for the calculation of the ambient temperature X0 and the determination of the formula y ═ f (t).
Further, in this embodiment, the communication module is further configured to:
when Tmax is smaller than Tmin, early warning information is sent to the pre-bound terminal, and after the user receives the early warning information, the user can make response preparation in advance, for example, some foods with high requirements on temperature can be taken out in advance for eating, so that waste is avoided.
Further, in this embodiment, the communication module is further configured to:
when Tmax is less than Tmin, the time for the temperature of the compartment to rise from Tmin to the early warning temperature T0 after the refrigerator is shut down is calculated, and the time information is transmitted to the user.
Further, in this embodiment, the communication module is further configured to:
and when the power failure information is issued at the location of the refrigerator through network inquiry, sending a power failure notification to a user.
A third embodiment of the present invention is a method for calculating a refrigerator compartment temperature, when the apparatus corresponds to the apparatus for calculating a refrigerator compartment temperature in the third embodiment described above, the apparatus includes a calculation module 15 and a communication module 11, the calculation module 15 is configured to:
dividing an environment temperature section preset by the refrigerator into M small sections [ X1... XM ];
when the refrigerator is in a shutdown state, respectively collecting each group of data of a room temperature [ y1... yM ] and a shutdown accumulated time length [ t1.. tM ] corresponding to an ambient temperature when the ambient temperature of the refrigerator is [ X1... XM ], and respectively fitting the group of data into a formula [ y1 ═ f (t 1.. yM ═ f (tM)), wherein f represents a polynomial;
when the environmental temperature during the refrigerator shutdown is searched for to be X0, the formula y (f) (t) of the room temperature y and the time t corresponding to the small section of the environmental temperature where X0 is located is;
acquiring the temperature Y1 of the chamber of the refrigerator before shutdown, and calculating the temperature Y2 of the chamber of the refrigerator after the cumulative shutdown time delta t;
the communication module 11 is used for acquiring the early warning temperature Y0 of the compartment of the refrigerator and sending early warning information to a pre-bound terminal of the refrigerator when Y2> Y0.
In this embodiment, the calculation module 15 first performs data acquisition and formula fitting to obtain a formula set [ Y1 ═ f (t 1.. yM ═ f (tm) ], then determines a formula Y ═ f (t)) of a specific compartment temperature Y and time t according to an ambient temperature X0, and then calculates a temperature Y2 reached by the compartment after the accumulated time Δ t through the formula and the compartment temperature before the refrigerator is stopped. The communication module 11 obtains the early warning temperature Y0, and if Y2 is greater than the early warning temperature Y0, it indicates that the compartment temperature in the refrigerator is high and much stored food is affected, and thus sends early warning information to the pre-bound terminal of the refrigerator to inform the user of checking the state of the food in the refrigerator. If Y2 is less than the warning temperature Y0, it indicates that the compartment temperature within the refrigerator is low and the stored food has not been affected. At this time, the time length required for the temperature of the refrigerator room to reach the early warning temperature Y0 can be calculated through a formula, and the time length is sent to a pre-bound terminal, so that a user can take measures in advance.
Further, the calculation module 15 is further configured to:
and substituting the Y1 into Y in the formula Y-f (T), calculating a corresponding value T1 of T, setting T2 to T1+ delta T, substituting the T2 into T in the formula Y-f (T), calculating a corresponding value Y2 of Y, and using Y2 as the temperature of the compartment after the refrigerator is stopped for the accumulated time length delta T.
Further, the calculating module is also used for calculating the time length required by the compartment temperature of the refrigerator from Y2 to Y0 when Y2< Y0;
the communication module is also used for sending the duration to a terminal pre-bound to the refrigerator.
Further, the apparatus further comprises:
a storage module 13 for the formula [ y1 ═ f (t 1.. yM ═ f (tm)) ].
A fourth embodiment of the present invention is a method for calculating an ambient temperature of a refrigerator, when the apparatus corresponds to the apparatus for calculating an ambient temperature of a refrigerator in the fourth embodiment described above, the apparatus comprising:
the communication module 11 is used for acquiring the current-day forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days, and sending information to the pre-bound terminal;
the calculating module 15 is configured to calculate, according to historical operating data of the refrigerator, a difference obtained by subtracting a corresponding historical forecast temperature from an actual ambient temperature of the refrigerator at the power outage starting time within the previous N days; calculating the environmental temperature X0 of the refrigerator at the power failure starting time according to the difference and the current forecast temperature; and when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t); acquiring the temperature Y1 of the chamber of the refrigerator before power failure, and calculating the temperature Y2 of the chamber of the refrigerator after the accumulated stop time delta t;
and the control module 17 is used for acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, controlling the communication module to send early warning information to a pre-bound terminal of the refrigerator.
In the present embodiment, the calculating module 15 calculates the ambient temperature X0 of the refrigerator at the power failure starting time according to the difference between the actual ambient temperature of the refrigerator at the power failure starting time within the previous N days and the corresponding historical forecast temperature, and the forecast temperature of the current day. Since the refrigerator is generally placed indoors, the ambient temperature of the refrigerator has a certain deviation from the predicted temperature (outdoor temperature), and the air conditioner is started in the home in two seasons of winter and summer, the calculation method is more accurate compared with the method of directly using the predicted temperature.
After the environment temperature X0 of the refrigerator at the beginning of the power failure is accurately calculated, the change curve of the temperature of the compartment in the refrigerator can be more accurately determined, and therefore the state of food stored in the compartment can be judged. For a specific judgment process, reference may be made to the first to third embodiments, which are not described herein again.
Further, the calculation module 15 is further configured to:
the average value ax of the difference values is calculated,
x0 is the daily forecast temperature + Δ X.
Further, the calculation module 15 is further configured to:
searching for a small section of the environmental temperature where the environmental temperature X0 is located;
and obtaining a corresponding formula y ═ f (t) of the small section of the environment temperature, wherein y represents the temperature of the compartment, and t represents time.
Further, the calculation module 15 is further configured to:
collecting data of the compartment temperature y and the accumulated shutdown time t of the compartment in a preset time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state in the historical operation data of the refrigerator, and fitting the data into a formula: and y ═ f (t).
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A method for calculating the ambient temperature of a refrigerator is characterized by comprising the following steps:
acquiring the current forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days;
calculating the difference value of subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the previous N days according to the historical operation data of the refrigerator;
calculating the maximum value Deltax in the difference values; judging whether the delta X is larger than or equal to 0, if so, judging that X0 is the daily forecast temperature + delta X, and otherwise, judging that X0 is the daily forecast temperature;
or, calculating an average value Δ x of the difference values; x0 ═ the daily forecast temperature + Δ X;
when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t);
acquiring the temperature Y1 of the compartment of the refrigerator before power failure, and calculating the temperature Y2 of the compartment of the refrigerator after the accumulated shutdown time delta t;
and acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, sending early warning information to a pre-bound terminal of the refrigerator.
2. The method for calculating the ambient temperature of the refrigerator according to claim 1, wherein the step of "when the ambient temperature is determined to be X0, the formula y ═ f (t)" between the room temperature y and the time t of the refrigerator specifically comprises:
searching a corresponding formula set [ y1 ═ f (t1).. yM ═ f (tM) ] according to the type of the refrigerator;
searching for a small section of the environmental temperature where the environmental temperature X0 is located;
and obtaining a corresponding formula y ═ f (t) of the small section of the environment temperature, wherein y represents the temperature of the compartment, and t represents time.
3. The method for calculating the ambient temperature of the refrigerator according to claim 1, wherein the step of "when the ambient temperature is determined to be X0, the formula y ═ f (t)" between the room temperature y and the time t of the refrigerator specifically comprises:
collecting data of the compartment temperature y and the accumulated shutdown time t of the compartment in a preset time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state in the historical operation data of the refrigerator, and fitting the data into a formula: and y ═ f (t).
4. An apparatus for calculating an ambient temperature of a refrigerator, the apparatus comprising:
the communication module is used for acquiring the current forecast temperature of the location of the refrigerator and the historical forecast temperature in the previous N days, and sending information to the pre-bound terminal;
the computing module is used for computing the difference value of subtracting the corresponding historical forecast temperature from the actual environment temperature of the refrigerator at the power failure starting time within the previous N days according to the historical operation data of the refrigerator; and for calculating a maximum value Δ x of said difference values; judging whether the delta X is larger than or equal to 0, if so, judging that X0 is the daily forecast temperature + delta X, and otherwise, judging that X0 is the daily forecast temperature; or for calculating an average value Δ X of said difference, said X0 ═ today's forecast temperature + Δ X; and when the environment temperature is determined to be X0, the formula y of the refrigerator compartment temperature y and the time t is f (t); acquiring the temperature Y1 of the chamber of the refrigerator before power failure, and calculating the temperature Y2 of the chamber of the refrigerator after the accumulated stop time delta t;
and the control module is used for acquiring the early warning temperature Y0 of the compartment of the refrigerator, and if Y2> Y0, the control module controls the communication module to send early warning information to a pre-bound terminal of the refrigerator.
5. The computing apparatus of claim 4, wherein the computing module is further to:
searching for a small section of the environmental temperature where the environmental temperature X0 is located;
and obtaining a corresponding formula y ═ f (t) of the small section of the environment temperature, wherein y represents the temperature of the compartment, and t represents time.
6. The computing apparatus of claim 4, wherein the computing module is further to:
collecting data of the compartment temperature y and the accumulated shutdown time t of the compartment in a preset time period when the ambient temperature of the refrigerator is X0 and the refrigerator is in a shutdown state in the historical operation data of the refrigerator, and fitting the data into a formula: and y ═ f (t).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604742.8A CN112179036B (en) | 2019-07-05 | 2019-07-05 | Method and device for calculating refrigerator environment temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604742.8A CN112179036B (en) | 2019-07-05 | 2019-07-05 | Method and device for calculating refrigerator environment temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112179036A CN112179036A (en) | 2021-01-05 |
| CN112179036B true CN112179036B (en) | 2022-04-26 |
Family
ID=73915947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910604742.8A Active CN112179036B (en) | 2019-07-05 | 2019-07-05 | Method and device for calculating refrigerator environment temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112179036B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359561B (en) * | 2021-06-17 | 2022-05-06 | 山东东阀制冷科技有限公司 | Intelligent refrigeration house remote monitoring platform system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI278594B (en) * | 2005-12-23 | 2007-04-11 | Ind Tech Res Inst | Constant temperature control method for refrigeration compartment |
| CN106842914A (en) * | 2016-12-12 | 2017-06-13 | 中国农业大学 | A kind of temperature control energy-saving processing method, apparatus and system |
| CN107883536A (en) * | 2017-09-30 | 2018-04-06 | 珠海格力电器股份有限公司 | The parameter regulation means and device of air-conditioning equipment, terminal |
| CN109708258A (en) * | 2018-12-20 | 2019-05-03 | 南京达实能源技术有限公司 | A kind of temperature of ice house feedforward-Fuzzy control system and control method based on load dynamic change |
| CN109900062A (en) * | 2019-04-04 | 2019-06-18 | 湖北美的电冰箱有限公司 | Environment temperature determines method, computer readable storage medium and refrigeration equipment |
-
2019
- 2019-07-05 CN CN201910604742.8A patent/CN112179036B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI278594B (en) * | 2005-12-23 | 2007-04-11 | Ind Tech Res Inst | Constant temperature control method for refrigeration compartment |
| CN106842914A (en) * | 2016-12-12 | 2017-06-13 | 中国农业大学 | A kind of temperature control energy-saving processing method, apparatus and system |
| CN107883536A (en) * | 2017-09-30 | 2018-04-06 | 珠海格力电器股份有限公司 | The parameter regulation means and device of air-conditioning equipment, terminal |
| CN109708258A (en) * | 2018-12-20 | 2019-05-03 | 南京达实能源技术有限公司 | A kind of temperature of ice house feedforward-Fuzzy control system and control method based on load dynamic change |
| CN109900062A (en) * | 2019-04-04 | 2019-06-18 | 湖北美的电冰箱有限公司 | Environment temperature determines method, computer readable storage medium and refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112179036A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108317669B (en) | Anti-freezing control method for indoor unit of air conditioner | |
| CN108168028B (en) | Method for refrigerating and defrosting of mobile air conditioner, mobile air conditioner and storage medium | |
| CN109237743B (en) | Air conditioner control method and device and computer storage medium | |
| CN112050369B (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN105466149A (en) | Refrigerator and self-adapting defrosting control method thereof | |
| CN105222516A (en) | Refrigerator and control method thereof | |
| CN105135606B (en) | The method and apparatus for controlling air-conditioning | |
| CN110986326A (en) | Air conditioner and control method thereof | |
| CN109425195A (en) | Refrigerator temperature control method, device and refrigerator | |
| CN112179036B (en) | Method and device for calculating refrigerator environment temperature | |
| US20190249894A1 (en) | A dc varaiable speed compressor control method and control system | |
| CN112179035B (en) | Refrigerator management method and device | |
| CN110332760B (en) | Control method and device for pre-refrigeration of refrigerator | |
| CA2881086C (en) | System for controlling operation of an hvac system | |
| CN107014150B (en) | Self-lifting freezing and refrigerating cabinet group control system | |
| US20190338994A1 (en) | A dc varaiable speed compressor control method and control system | |
| CN112050375A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| EP3563097B1 (en) | A variable speed compressor based ac system and control method | |
| CN112179037A (en) | Method and device for calculating temperature of refrigerator compartment | |
| CN116697651A (en) | Method and device for determining abnormality of four-way valve of refrigerating unit | |
| CN104729231A (en) | Single-system direct-cooling refrigerator and auxiliary temperature control method for single-system direct-cooling refrigerator | |
| CN112050370A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN113915889B (en) | Refrigerator and control method thereof | |
| CN103322649A (en) | Control method and control device | |
| CN109539686B (en) | Refrigerator control device and refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |