Refrigerator, refrigerator refrigeration abnormity determination method and device and storage medium
By combining the comprehensive judgment method of temperature in the refrigerator, the amount of items stored and the door opening time, the problem of poor accuracy of existing refrigerator refrigeration abnormalities is solved, and the accuracy of judgment and user experience are improved.
Patent Information
- Application Number
- CN202311296633.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-09
- Publication Date
- 2025-04-11
AI Technical Summary
The existing methods for judging abnormal refrigeration in refrigerators have poor accuracy and are prone to misjudgment due to many items in the refrigerator or the door is not closed.
By collecting the temperature in the refrigerator and the storage amount of items, as well as the opening time of the refrigerator door, we can comprehensively determine whether the refrigerator is refrigerated abnormally.
It improves the accuracy of judging whether refrigerator refrigeration is abnormal, reduces misjudgment, and ensures user experience.
Smart Images
Figure CN119802934A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to refrigerator technology, and more specifically, to a refrigerator, a method and device for determining refrigerator refrigeration abnormality, and a storage medium. Background Art
[0002] Refrigeration is a basic function of a refrigerator. If the refrigerator does not refrigerate or the refrigeration effect is poor, the user experience will be poor. At present, the existing method for determining whether the refrigerator refrigeration is abnormal is mainly based on the difference between the actual temperature in the refrigerator and the set temperature to determine whether the refrigerator refrigeration is abnormal. When the difference is higher than the preset difference range, the refrigerator is judged to be over-temperature abnormal, and the user is prompted to repair the refrigerator. However, the existing method for determining whether the refrigerator refrigeration is abnormal has the problem of poor accuracy. Summary of the invention
[0003] The exemplary embodiments of the present application provide a refrigerator, a method and a device for determining refrigerator refrigeration abnormality, and a storage medium, which can improve the accuracy of determining whether there is an abnormality in refrigerator refrigeration.
[0004] In a first aspect, the present application provides a refrigerator, comprising:
[0005] A refrigeration module, used for refrigeration;
[0006] The control module connected to the refrigeration module is configured as follows:
[0007] collecting the temperature in the refrigerator;
[0008] If it is determined that the refrigerator is suspected of having a refrigeration abnormality according to the temperature in the refrigerator, then obtaining the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality;
[0009] Determining whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and / or the length of time the refrigerator door is in an open state;
[0010] If so, a prompt message is outputted to indicate that the refrigerator is refrigerating abnormally.
[0011] In some embodiments, the refrigerator is further provided with: an image acquisition device, and obtaining the storage amount of items in the refrigerator includes:
[0012] According to the image in the refrigerator captured by the image acquisition device, identifying the area of the object in the image;
[0013] The storage quantity of the items in the refrigerator is determined according to the ratio of the area of the region of the items in the image to the area of the image.
[0014] In some embodiments, before obtaining the storage amount of items in the refrigerator, the control module is further configured to:
[0015] In response to a door closing signal for closing the door body, the image inside the refrigerator is captured by the image capture device.
[0016] In some embodiments, judging whether the refrigeration of the refrigerator is abnormal according to the amount of items stored in the refrigerator and the length of time the refrigerator door is in an open state includes:
[0017] Obtaining a change in the storage amount of the items in the refrigerator according to the storage amount of the items in the refrigerator determined last time before determining that the refrigerator is suspected of having refrigeration abnormality, and the storage amount of the items in the refrigerator determined last time before the last time;
[0018] When it is determined that the suspected refrigeration abnormality is not related to the items based on the change in the temperature in the refrigerator and the storage amount of items in the refrigerator, or when it is determined that no items have been added based on the change in the storage amount of items in the refrigerator, it is judged whether the refrigeration of the refrigerator is abnormal based on the length of time that the refrigerator door is in an open state.
[0019] In some embodiments, determining that the suspected refrigeration abnormality is not related to the item according to the change in the temperature in the refrigerator and the amount of storage of items in the refrigerator includes:
[0020] Obtaining the product of the change in the storage amount of items in the refrigerator and a preset coefficient;
[0021] If the difference between the temperature in the refrigerator and the preset temperature threshold is greater than or equal to the product, it is determined that the suspected refrigeration anomaly is not related to the object.
[0022] In some embodiments, judging whether the refrigerator refrigeration is abnormal according to the length of time the refrigerator door is in the open state includes:
[0023] Obtaining the temperature in the refrigerator after the target time has passed;
[0024] Determining a target change threshold value according to the length of time the refrigerator door is in an open state;
[0025] If the difference between the temperature in the refrigerator and the preset temperature threshold after the target time is greater than or equal to the preset difference, and the temperature change in the refrigerator before and after the target time is less than the target change threshold, it is determined that the refrigerator refrigeration is abnormal.
[0026] In some embodiments, the control module is further configured to:
[0027] According to the temperature in the refrigerator, it is determined that the refrigeration module does not have any suspected refrigeration abnormality, or,
[0028] According to the change in the temperature in the refrigerator and the amount of storage of the articles in the refrigerator, it is determined that the suspected refrigeration abnormality is related to the article, or,
[0029] When the difference between the temperature in the refrigerator and the preset temperature threshold after the target time has passed is less than the preset difference, and / or the temperature change in the refrigerator before and after the target time is greater than or equal to the target change threshold, it is determined that there is no abnormality in the refrigeration of the refrigerator.
[0030] In a second aspect, the present application provides a method for determining refrigerator refrigeration abnormality, the method comprising:
[0031] collecting the temperature in the refrigerator;
[0032] If it is determined that the refrigerator is suspected of having a refrigeration abnormality according to the temperature in the refrigerator, then obtaining the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality;
[0033] Determining whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and / or the length of time the refrigerator door is in an open state;
[0034] If so, a prompt message is outputted to indicate that the refrigerator is refrigerating abnormally.
[0035] In a third aspect, the present application provides a device for determining refrigerator refrigeration abnormality, the device comprising:
[0036] A collection module, used for collecting the temperature in the refrigerator;
[0037] an acquisition module, for acquiring, when it is determined based on the temperature in the refrigerator that the refrigerator is suspected of having a refrigeration abnormality, the amount of items stored in the refrigerator, and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality;
[0038] A judgment module, used to judge whether the refrigeration of the refrigerator is abnormal according to the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state;
[0039] The output module is used to output a prompt message for prompting the abnormal refrigeration of the refrigerator when the refrigeration of the refrigerator is abnormal.
[0040] In a fourth aspect, the present application provides a computer-readable storage medium having computer-executable instructions stored thereon. When the computer-executable instructions are executed by a processor, the method described in the second aspect is implemented.
[0041] In a fifth aspect, the present application provides a computer program product, including a computer program, which implements the method described in the second aspect when executed by a processor.
[0042] The refrigerator, refrigerator refrigeration abnormality determination method, device and storage medium provided by the present application, after determining that the refrigerator is suspected of refrigeration abnormality based on the temperature inside the refrigerator, then combine the storage amount of items in the refrigerator and / or the length of time the refrigerator door is in an open state to determine whether the refrigerator refrigeration is abnormal. Through the above method, the influence of factors such as the storage amount of items in the refrigerator and / or the length of time the refrigerator door is open on the temperature inside the refrigerator is taken into account, and the refrigerator refrigeration state is comprehensively judged, thereby improving the accuracy of judging whether the refrigerator refrigeration is abnormal. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.
[0044] Figure 1 A schematic diagram of the structure of a refrigerator provided in this application;
[0045] Figure 2 A flowchart of a method for determining refrigerator refrigeration abnormality provided in this application;
[0046] Figure 3 A flowchart of a method for determining whether the refrigerator refrigeration is abnormal based on the amount of items stored in the refrigerator and the length of time the refrigerator door is in an open state provided in the present application;
[0047] Figure 4 A flowchart of another method for determining refrigerator refrigeration abnormality provided by the present application;
[0048] Figure 5 A schematic diagram of the structure of a refrigerator refrigeration abnormality determination device provided in the present application. DETAILED DESCRIPTION
[0049] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0050] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.
[0051] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.
[0052] With the development of technology, users have a higher demand for intelligent refrigerators. Refrigeration is a basic function of refrigerators, and users have a high demand for the refrigeration effect of refrigerators. If the refrigerator does not refrigerate or the refrigeration effect is poor, it will lead to a poor user experience. Therefore, many refrigerators or applications (APPs) used to control refrigerators currently have an over-temperature alarm function to remind users to repair the refrigerator when the refrigerator does not refrigerate or the refrigeration effect is poor.
[0053] The existing method for determining refrigerator refrigeration abnormality is to obtain the actual temperature in the refrigerator, and then calculate the difference between the actual temperature and the set temperature. When the difference is higher than the preset difference range, the refrigerator is directly determined to be over-temperature abnormal, and the user is prompted to repair the refrigerator.
[0054] However, in the actual use of refrigerators by users, there are many factors that cause the actual temperature inside the refrigerator to rise. Even if the refrigerator's refrigeration function is normal, there may be factors such as too many items in the refrigerator or the refrigerator door is not closed, which may cause the actual temperature inside the refrigerator to rise, resulting in the difference between the actual temperature and the set temperature exceeding the preset difference range, which may lead to the misjudgment of the refrigerator's refrigeration function being abnormal.
[0055] Therefore, the existing method for judging abnormality of refrigerator refrigeration has the problem of poor accuracy.
[0056] Considering the above problems existing in the existing refrigerator refrigeration abnormality judgment method, the present application proposes a method for determining whether the refrigerator refrigeration is abnormal based on factors such as the amount of items stored in the refrigerator and / or the length of time the refrigerator door is open. Through the above method, the influence of factors such as the amount of items stored in the refrigerator and / or the length of time the refrigerator door is open on the temperature inside the refrigerator is taken into account, thereby improving the accuracy of judging whether the refrigerator refrigeration is abnormal based on the temperature inside the refrigerator.
[0057] first, Figure 1 This is a schematic diagram of the structure of a refrigerator provided in this application. Figure 1As shown, the refrigerator may include: a control module, and a refrigeration module for refrigeration. The refrigeration module may be connected to the control module. It should be understood that the present application does not limit the connection method between the refrigeration module and the control module, the method of implementing refrigeration by the refrigeration module, etc. For example, any existing implementation method may be referred to, and the present application will not repeat them here.
[0058] It should be understood that Figure 1 The structure of the refrigerator is merely described by taking part of the structure related to the present application as an example, and the present application does not limit whether the refrigerator includes other components.
[0059] The execution subject of the refrigerator refrigeration anomaly determination method provided in the present application may be a refrigerator control module, or the refrigerator, which is not limited in the present application. Alternatively, in some embodiments, the execution subject of the refrigerator refrigeration anomaly determination method may also be any electronic device with processing function (such as a terminal or server, etc.), which is not limited in the present application. In this implementation, the refrigerator can send the collected temperature, image and other data to the electronic device, and receive instruction information from the electronic device to perform related operations based on the instruction information.
[0060] The following uses a refrigerator as an example of the subject of the refrigerator refrigeration abnormality determination method proposed in the present application, and describes the technical solution of the present application in detail in combination with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0061] Figure 2 This is a flow chart of a method for determining refrigerator refrigeration abnormality provided by this application. Figure 2 As shown, the method may include the following steps:
[0062] S101, collecting the temperature in the refrigerator.
[0063] Exemplarily, a temperature sensor may be provided in the refrigerator. The refrigerator may collect the temperature in the refrigerator through the temperature sensor. In some embodiments, the temperature in the refrigerator may also be referred to as the actual temperature in the refrigerator. Exemplarily, the refrigerator may collect the temperature in the refrigerator periodically according to a preset frequency.
[0064] It should be understood that the temperature in the refrigerator may include: the temperature in the refrigerator refrigeration chamber and / or the temperature in the refrigerator freezer, etc., and the present application does not limit this. That is, the refrigerator refrigeration abnormality determination method proposed in the present application can be used for
[0065] S102. If it is determined based on the temperature inside the refrigerator that the refrigerator is suspected of having a refrigeration abnormality, the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality are obtained.
[0066] Optionally, the suspected refrigeration abnormality of the refrigerator may refer to a suspected abnormality of a refrigeration module of the refrigerator. In some examples, the refrigeration abnormality may also be referred to as an over-temperature abnormality.
[0067] Exemplarily, the refrigerator may determine that the refrigerator is suspected of having refrigeration abnormality when the difference obtained by subtracting a preset temperature threshold from the temperature in the refrigerator is greater than or equal to the preset temperature difference.
[0068] The items in the refrigerator may refer to items stored in the refrigerator compartment and / or the freezer compartment of the refrigerator. It should be understood that the present application does not limit the types of items in the refrigerator. The storage amount of items in the refrigerator may refer to, for example, the weight of the items in the refrigerator, or the proportion of the space in the refrigerator occupied by the items in the refrigerator, or any other parameter that can characterize the number of items in the refrigerator.
[0069] Taking the example of representing the storage quantity of items in the refrigerator by the weight of the items in the refrigerator, illustratively, the refrigerator can obtain the weight of the items in the refrigerator through a weight sensor, etc., and use the weight of the items in the refrigerator as the storage quantity of the items in the refrigerator.
[0070] Exemplarily, the target duration may be pre-stored in the control module of the refrigerator. Optionally, the refrigerator may record the duration of each time the user opens the door within the “target duration after the refrigerator is suspected of refrigeration anomaly”, and add up the duration of each time the refrigerator door is opened to obtain the duration of the refrigerator door being open within the target duration after the refrigerator is suspected of refrigeration anomaly.
[0071] S103: Determine whether the refrigerator refrigeration is abnormal based on the amount of items stored in the refrigerator and / or the length of time the refrigerator door is in an open state.
[0072] That is, the refrigerator can determine whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator. Alternatively, the refrigerator can also determine whether the refrigerator refrigeration is abnormal according to the length of time the refrigerator door is in the open state. Alternatively, the refrigerator can also determine whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and the length of time the refrigerator door is in the open state.
[0073] If the refrigerator determines that there is an abnormality in the refrigerator refrigeration based on the storage volume of items in the refrigerator and / or the length of time that the refrigerator door is in the open state, the refrigerator can execute step S104 to output a prompt message for indicating the abnormality in the refrigerator refrigeration.
[0074] If the refrigerator determines that there is no abnormality in the refrigeration of the refrigerator based on the storage volume of items in the refrigerator and / or the length of time that the refrigerator door is in the open state, the refrigerator may, for example, not output the above prompt information and continue to monitor the temperature inside the refrigerator.
[0075] S104: Outputting a prompt message for prompting that the refrigerator is refrigerating abnormally.
[0076] It should be understood that the present application does not limit how the refrigerator outputs the above prompt information. For example, the refrigerator can emit a prompt sound for prompting the refrigerator to be abnormally refrigerated through a prompt sound broadcast device. Alternatively, the refrigerator can also display prompt information (such as text prompts or refrigeration fault code prompts, etc.) for prompting the refrigerator to be abnormally refrigerated through a display device. Alternatively, the refrigerator can also output the above prompt information through an APP, etc.
[0077] By outputting the above-mentioned prompt information for prompting the abnormal refrigeration of the refrigerator, the user can discover the abnormal refrigeration of the refrigerator in time, thereby improving the user experience.
[0078] In this embodiment, after determining that the refrigerator is suspected of refrigeration abnormality based on the temperature in the refrigerator, the amount of items stored in the refrigerator and / or the length of time the refrigerator door is open are combined to determine whether the refrigerator refrigeration is abnormal. Through the above method, the influence of factors such as the amount of items stored in the refrigerator and / or the length of time the refrigerator door is open on the temperature in the refrigerator is taken into account, and the refrigerator refrigeration state is comprehensively judged, thereby improving the accuracy of judging whether the refrigerator refrigeration is abnormal.
[0079] The following is a detailed description of how the refrigerator obtains the storage capacity of items in the refrigerator:
[0080] For example, if the refrigerator is also provided with an image acquisition device, as a possible implementation method, the refrigerator can, for example, identify the area of the items in the image based on the image in the refrigerator acquired by the image acquisition device. Then, the refrigerator can determine the storage quantity of the items in the refrigerator based on the ratio of the "area of the area of the items in the image" to the "area of the image".
[0081] Exemplarily, after acquiring the image of the refrigerator, the refrigerator can detect the items in the image by any existing target detection method, and determine the area of the items in the image by the size of the bounding box surrounding the item. Exemplarily, the refrigerator can use the area of the bounding box surrounding the item as the "area of the area of the item in the image". Then, the refrigerator can use the ratio of the "area of the area of the item in the image" to the "area of the image" as the storage capacity of the items in the refrigerator. That is to say, the larger the ratio of the "area of the area of the item in the image" to the "area of the image", the more items are stored in the refrigerator. The smaller the ratio of the "area of the area of the item in the image" to the "area of the image", the less items are stored in the refrigerator.
[0082] Through the above method, the storage quantity of items in the refrigerator is determined, which lays a foundation for subsequently judging whether the refrigerator refrigeration is abnormal based on the storage quantity of the items.
[0083] In some embodiments, the refrigerator may capture images of the refrigerator through the above-mentioned image acquisition device in response to a door closing signal of closing the refrigerator door before obtaining the storage amount of items in the refrigerator. That is, the refrigerator may capture images of the refrigerator through the above-mentioned image acquisition device every time it detects a door closing signal. Because the user may put items into or take items out of the refrigerator after opening the refrigerator, when the door closing signal is detected, the above-mentioned image acquisition device captures images of the refrigerator to determine whether the items in the refrigerator have changed, and further determine whether the refrigerator refrigeration is abnormal.
[0084] Optionally, the door closing signal for closing the refrigerator door can be triggered by, for example, closing the refrigerator door. Alternatively, the door closing signal for closing the refrigerator door can also be a door closing signal generated when the refrigerator is automatically closed, etc., which is not limited in the present application.
[0085] The following is a detailed description of how to determine whether the refrigerator refrigeration is abnormal based on the amount of items stored in the refrigerator and the length of time the refrigerator door is open:
[0086] Figure 3 A flowchart of a method for determining whether the refrigerator refrigeration is abnormal based on the amount of items stored in the refrigerator and the length of time the refrigerator door is open is provided in this application. Figure 3 As shown, as a possible implementation, the method may include the following steps:
[0087] S201. Obtain a change in the storage amount of items in the refrigerator based on the storage amount of items in the refrigerator that was last determined before the suspected refrigeration abnormality of the refrigerator is determined, and the storage amount of items in the refrigerator that was last determined before the last time.
[0088] For example, the refrigerator can obtain the change in the storage amount of items in the refrigerator by using the following formula (1):
[0089] ΔS=S1-S2 (1)
[0090] Among them, S1 can be used to represent the last determined storage volume of items in the refrigerator. S2 can be used to represent the last determined storage volume of items in the refrigerator before the suspected refrigeration abnormality of the refrigerator is determined. ΔS can be used to represent the change in the storage volume of items in the refrigerator.
[0091] S202. When it is determined that the suspected refrigeration abnormality is not related to the items based on the change in the temperature in the refrigerator and the change in the storage volume of the items in the refrigerator, or when it is determined that no items have been added based on the change in the storage volume of the items in the refrigerator, determine whether the refrigerator refrigeration is abnormal based on the length of time that the refrigerator door is in an open state.
[0092] In some embodiments, if the change in the storage amount of items in the refrigerator is zero, or the change is less than a preset threshold, the refrigerator can determine that no items have been added. If the change in the storage amount of items in the refrigerator is not zero, or the change is greater than or equal to a preset threshold, the refrigerator can determine that an item has been added.
[0093] In some embodiments, the refrigerator can obtain, for example, the product of the change in the amount of storage of items in the refrigerator and a preset coefficient. Then, if the difference between the temperature in the refrigerator and the preset temperature threshold is greater than or equal to the above product, it is determined that the suspected refrigeration anomaly is not related to the items. When the above "suspected refrigeration anomaly is not related to the items", it means that the cause of the suspected refrigeration anomaly is not the normal temperature rise phenomenon after the items are placed in the refrigerator, that is, the change in the temperature in the refrigerator is not a normal phenomenon after the items are placed.
[0094] Exemplarily, the preset coefficients may be determined by a user through offline experiments, and may be pre-stored in the control module of the refrigerator.
[0095] If the difference between the temperature in the refrigerator and the preset temperature threshold is less than the above product, the refrigerator can determine that the suspected refrigeration anomaly is related to the item. Optionally, the refrigerator can determine that there is no refrigeration anomaly in the refrigerator. If the suspected refrigeration anomaly is related to the item, it means that the cause of the suspected refrigeration anomaly is the normal temperature rise phenomenon after the item is placed in the refrigerator, that is, the temperature change in the refrigerator is a normal phenomenon after the item is placed.
[0096] In the present embodiment, the refrigerator can determine whether the refrigeration of the refrigerator is abnormal according to the storage amount of items in the refrigerator and the length of time that the refrigerator door is open. The effects of factors such as the storage amount of items in the refrigerator and the length of time that the refrigerator door is open on the temperature inside the refrigerator are taken into consideration, and the refrigeration status of the refrigerator is comprehensively determined, thereby improving the accuracy of determining whether the refrigeration of the refrigerator is abnormal.
[0097] The following is a detailed description of how to determine whether the refrigerator refrigeration is abnormal based on the length of time the refrigerator door is open:
[0098] In some embodiments, the refrigerator can obtain the time duration that the refrigerator door is in an open state within the target time duration after determining that the refrigerator is suspected of refrigeration abnormality, and the temperature inside the refrigerator after the target time duration has passed. Then, the refrigerator can determine the target change amount threshold value according to the time duration that the refrigerator door is in an open state.
[0099] Optionally, the refrigerator may obtain the temperature inside the refrigerator after a target period of time, for example, through a temperature sensor.
[0100] Exemplarily, the refrigerator may input the length of time that the refrigerator door is in an open state into a preset target change threshold value calculation formula to obtain the target change threshold value.
[0101] If the difference between the temperature in the refrigerator and the preset temperature threshold after the target time is greater than or equal to the preset difference, and the temperature change in the refrigerator before and after the target time is less than the target change threshold, the refrigerator can determine that the refrigerator refrigeration is abnormal.
[0102] Through the above method, when the refrigerator determines, based on the storage amount of items in the refrigerator, that the change in temperature in the refrigerator is not a normal phenomenon after the items are put in, the refrigerator can continue to determine whether the refrigerator refrigeration is abnormal based on the length of time that the refrigerator door is in an open state within a target length of time after the suspected refrigeration abnormality of the refrigerator, thereby further improving the accuracy of judging whether the refrigerator refrigeration is abnormal.
[0103] In some embodiments, as mentioned above, the refrigerator can determine that the refrigerator refrigeration is normal when it is determined that there is no suspected refrigeration abnormality in the refrigeration module based on the temperature in the refrigerator. Alternatively, the refrigerator can also determine that the refrigerator refrigeration is normal when it is determined that the suspected refrigeration abnormality is related to the items based on the change in the temperature in the refrigerator and the change in the storage amount of the items in the refrigerator. Alternatively, the refrigerator can also determine that the refrigerator refrigeration is normal when the difference between the temperature in the refrigerator and the preset temperature threshold after the target time is less than the preset difference, and / or the temperature change in the refrigerator before and after the target time is greater than or equal to the target change threshold.
[0104] Taking the above preset difference of 3°C as an example, Figure 4This is a flow chart of another method for determining refrigerator refrigeration abnormality provided by this application. Figure 4 As shown, the refrigerator can continuously obtain the actual temperature in the refrigerator (also called real-time temperature) based on the temperature sensor, and calculate the difference ΔT=Tr1-Ts between the actual temperature Tr1 and the set temperature (preset temperature threshold) Ts. When ΔT<3℃, the refrigerator may not give an alarm (that is, it is determined that there is no abnormality in the refrigerator refrigeration). When ΔT≥3℃, the refrigerator can determine that the refrigerator is suspected of refrigeration abnormality and proceed to the next step of judgment:
[0105] Then, taking the aforementioned image acquisition device as a camera as an example, the refrigerator can take pictures of the items in the refrigerator through the camera installed in the refrigerator, and calculate the area S of the object. The area calculation method can be, for example: assuming that the overall area of the picture collected by the camera is 1, the area of the object is the proportion of the object to the picture * 1. When it is detected that an item is currently placed, the difference ΔS=S1-S2 between the area S1 after placement and the area S2 before placement is calculated as the change in the storage amount of the items in the refrigerator.
[0106] Then, when ΔT < 10*ΔS, the refrigerator may consider the temperature difference to be a normal phenomenon after the item is placed in the refrigerator, and no alarm is issued. When ΔT ≥ 10*ΔS or no item is detected to be placed in the refrigerator, the next step is to be determined:
[0107] Taking the above target duration of 2 hours as an example, the refrigerator can obtain the actual temperature Tr2 in the refrigerator 2 hours after determining that the refrigerator is suspected of refrigeration abnormality, and count the number of refrigerator door openings n and the door opening time t (minutes) within 2 hours, and calculate the refrigerator temperature drop value ΔTr=Tr1-Tr2 within 2 hours. The above door opening time t can be used to characterize the average time of each door opening, for example.
[0108] When Tr2-Ts<3 or ΔTr≥3-1 1 0*n*t, the refrigerator temperature is considered normal and no alarm is issued; when Tr2-Ts≥3 and ΔTr<3-1 1 0*n*t, the user is reminded that the refrigerator temperature and refrigeration are abnormal.
[0109] Among them, the specific numbers in the aforementioned process, such as 3, 10, 2h, 1 / 10, etc., can be weights set according to actual conditions and can be adjusted according to needs. This application does not limit this.
[0110] In this embodiment, compared with the prior art that only determines whether the refrigerator refrigeration is abnormal based on the actual temperature of the refrigerator, the actual temperature inside the refrigerator, the storage conditions, and the opening and closing conditions of the door are combined, and data calculation is used to convey the abnormal temperature information to the user. When the refrigerator does not refrigerate or the refrigeration effect is poor, the user can be reminded in time, and the over-temperature alarm reminder is made more accurate, so that the user can better understand the refrigeration status of the refrigerator.
[0111] Figure 5 This is a schematic diagram of the structure of a refrigerator refrigeration abnormality determination device provided by the present application. The device can be used in any of the refrigerators described in the above embodiments, or a control module of a refrigerator. Figure 5 As shown, the device includes: a collection module 21, an acquisition module 22, a judgment module 23, and an output module 24. Among them,
[0112] The collection module 21 is used to collect the temperature in the refrigerator.
[0113] The acquisition module 22 is used to acquire the storage amount of the items in the refrigerator when it is determined that the refrigerator is suspected of having a refrigeration abnormality according to the temperature in the refrigerator, and / or the duration that the refrigerator door is in an open state within a target duration after the suspected refrigeration abnormality is determined in the refrigerator;
[0114] The judgment module 23 is used to judge whether the refrigeration of the refrigerator is abnormal according to the storage amount of the items in the refrigerator and / or the length of time that the refrigerator door is in the open state.
[0115] The output module 24 is used to output a prompt message for prompting the abnormal refrigeration of the refrigerator when the refrigeration of the refrigerator is abnormal.
[0116] Optionally, the refrigerator is further provided with: an image acquisition device. Optionally, the acquisition module 22 is specifically used to identify the area of the items in the image captured by the image acquisition device according to the image in the refrigerator; and determine the storage quantity of the items in the refrigerator according to the ratio of the area of the area of the items in the image to the area of the image.
[0117] Optionally, the acquisition module 22 is further configured to acquire the image inside the refrigerator through the image acquisition device in response to a door closing signal for closing the door before acquiring the storage quantity of items in the refrigerator.
[0118] Optionally, the judgment module 23 is specifically used to obtain a change in the storage amount of items in the refrigerator based on the storage amount of items in the refrigerator determined for the last time before the suspected refrigeration abnormality of the refrigerator is determined, and the storage amount of items in the refrigerator determined last time before the suspected refrigeration abnormality is determined; when it is determined that the suspected refrigeration abnormality is not related to the items based on the temperature in the refrigerator and the change in the storage amount of items in the refrigerator, or when it is determined that no items have been added based on the change in the storage amount of items in the refrigerator, judge whether the refrigeration of the refrigerator is abnormal based on the length of time that the refrigerator door is in an open state.
[0119] Optionally, the judgment module 23 is specifically used to obtain the product of the change in the storage quantity of the items in the refrigerator and a preset coefficient; when the difference between the temperature in the refrigerator and the preset temperature threshold is greater than or equal to the product, it is determined that the suspected refrigeration abnormality is not related to the items.
[0120] Optionally, the judgment module 23 is specifically used to obtain the temperature inside the refrigerator after the target time has passed; determine the target change threshold value based on the time the refrigerator door is in the open state; when the difference between the temperature inside the refrigerator after the target time has passed and the preset temperature threshold value is greater than or equal to the preset difference, and the temperature change in the refrigerator before and after the target time is less than the target change threshold value, it is determined that the refrigerator refrigeration is abnormal.
[0121] Optionally, the judgment module 23 is also used to determine that there is no suspected refrigeration abnormality in the refrigeration module based on the temperature in the refrigerator, or to determine that the suspected refrigeration abnormality is related to the article based on the change in the temperature in the refrigerator and the storage amount of the articles in the refrigerator, or to determine that there is no refrigeration abnormality in the refrigerator when the difference between the temperature in the refrigerator and a preset temperature threshold after the target time is less than the preset difference, and / or the change in temperature in the refrigerator before and after the target time is greater than or equal to the target change threshold.
[0122] The refrigerator refrigeration abnormality determination device provided in the present application is used to execute the refrigerator refrigeration abnormality determination method embodiment executed by the aforementioned electronic device. Its implementation principle and technical effect are similar and will not be described in detail.
[0123] The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the methods in the above embodiments.
[0124] The present application also provides a program product, which includes an execution instruction, which is stored in a readable storage medium. At least one control module of the display device can read the execution instruction from the readable storage medium, and at least one control module executes the execution instruction so that the display device implements the refrigerator refrigeration abnormality determination method provided by the above various embodiments.
[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
[0126] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.
Claims
1. A refrigerator, characterized in that: The refrigerator comprises: A refrigeration module, used for refrigeration; The control module connected to the refrigeration module is configured as follows: Collecting the temperature in the refrigerator; If it is determined that the refrigerator is suspected of having a refrigeration abnormality according to the temperature in the refrigerator, then obtaining the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality; Determining whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and / or the length of time the refrigerator door is in an open state; If so, a prompt message is outputted to indicate that the refrigerator is refrigerating abnormally.
2. The refrigerator according to claim 1, characterized in that: The refrigerator is also provided with an image acquisition device, and the acquisition of the storage amount of items in the refrigerator includes: According to the image in the refrigerator captured by the image acquisition device, identifying the area of the object in the image; The storage quantity of the items in the refrigerator is determined according to the ratio of the area of the region of the items in the image to the area of the image.
3. The refrigerator according to claim 2, characterized in that: Before obtaining the storage amount of items in the refrigerator, the control module is further configured to: In response to a door closing signal for closing the door body, the image inside the refrigerator is captured by the image capture device.
4. The refrigerator according to claims 1-3, characterized in that: Judging whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and the length of time the refrigerator door is in an open state includes: Obtaining a change in the storage amount of the items in the refrigerator according to the storage amount of the items in the refrigerator determined last time before determining that the refrigerator is suspected of having refrigeration abnormality, and the storage amount of the items in the refrigerator determined last time before the last time; When it is determined that the suspected refrigeration abnormality is not related to the items based on the change in the temperature in the refrigerator and the storage amount of items in the refrigerator, or when it is determined that no items have been added based on the change in the storage amount of items in the refrigerator, it is judged whether the refrigeration of the refrigerator is abnormal based on the length of time that the refrigerator door is in an open state.
5. The refrigerator according to claim 4, characterized in that: The determining, based on the temperature in the refrigerator and the change in the amount of storage of the items in the refrigerator, that the suspected refrigeration abnormality is not related to the items includes: Obtaining the product of the change in the storage amount of items in the refrigerator and a preset coefficient; If the difference between the temperature in the refrigerator and the preset temperature threshold is greater than or equal to the product, it is determined that the suspected refrigeration anomaly is not related to the object.
6. The refrigerator according to claim 4, characterized in that: The step of judging whether the refrigerator refrigeration is abnormal according to the length of time the refrigerator door is in the open state comprises: Obtaining the temperature in the refrigerator after the target time has passed; Determining a target change threshold value according to the length of time the refrigerator door is in an open state; If the difference between the temperature in the refrigerator and the preset temperature threshold after the target time is greater than or equal to the preset difference, and the temperature change in the refrigerator before and after the target time is less than the target change threshold, it is determined that the refrigerator refrigeration is abnormal.
7. The refrigerator according to claim 6, characterized in that: The control module is further configured to: According to the temperature in the refrigerator, it is determined that the refrigeration module does not have any suspected refrigeration abnormality, or, According to the change in the temperature in the refrigerator and the amount of storage of the articles in the refrigerator, it is determined that the suspected refrigeration abnormality is related to the article, or, When the difference between the temperature in the refrigerator and the preset temperature threshold after the target time has passed is less than the preset difference, and / or the temperature change in the refrigerator before and after the target time is greater than or equal to the target change threshold, it is determined that there is no abnormality in the refrigeration of the refrigerator.
8. A method for determining refrigerator refrigeration abnormality, characterized in that: The method comprises: Collecting the temperature in the refrigerator; If it is determined that the refrigerator is suspected of having a refrigeration abnormality according to the temperature in the refrigerator, then obtaining the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality; Determining whether the refrigerator refrigeration is abnormal according to the amount of items stored in the refrigerator and / or the length of time the refrigerator door is in an open state; If so, a prompt message is outputted to indicate that the refrigerator is refrigerating abnormally.
9. A device for determining refrigerator refrigeration abnormality, characterized in that: The device comprises: A collection module, used for collecting the temperature in the refrigerator; an acquisition module, for acquiring, when it is determined based on the temperature in the refrigerator that the refrigerator is suspected of having a refrigeration abnormality, the amount of items stored in the refrigerator, and / or the length of time that the refrigerator door is in an open state within a target length of time after the refrigerator is determined to be suspected of having a refrigeration abnormality; A judgment module, used to judge whether the refrigeration of the refrigerator is abnormal according to the storage amount of items in the refrigerator and / or the length of time that the refrigerator door is in an open state; The output module is used to output a prompt message for prompting the abnormal refrigeration of the refrigerator when the refrigeration of the refrigerator is abnormal.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the method of claim 8 is implemented.