CN112413989B - Object monitoring method, refrigerator, storage medium and electronic device - Google Patents
Object monitoring method, refrigerator, storage medium and electronic device Download PDFInfo
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- CN112413989B CN112413989B CN202011300333.8A CN202011300333A CN112413989B CN 112413989 B CN112413989 B CN 112413989B CN 202011300333 A CN202011300333 A CN 202011300333A CN 112413989 B CN112413989 B CN 112413989B
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/109—Time management, e.g. calendars, reminders, meetings or time accounting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
Abstract
The invention discloses an object monitoring method, a refrigerator, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring an opening time of a target object in an opened state in a refrigerator, wherein the opening time is used for indicating the time when the target object is changed from an unopened state to an opened state; and determining the target quality guarantee time of the target object according to the opening time, and monitoring the use of the target object according to the target quality guarantee time, namely monitoring the target object according to the opening time and the target quality guarantee time of the target object in an opened state. By adopting the technical scheme, the problem that in the related technology, only the quality guarantee period of an unopened object can be monitored, so that the safety of the object is low in the actual use process is solved.
Description
Technical Field
The invention relates to the field of communication, in particular to an object monitoring method, a refrigerator, a storage medium and an electronic device.
Background
With the progress of scientific technology and the development of artificial intelligence, intelligent algorithms are also increasingly applied to daily life, especially for household appliances, the intelligent development of the household appliances is very important, and the most important problem of intelligence lies in the urgent need of intelligent solution users.
In the related art, the conventional refrigerator can monitor the shelf life of only an unopened object, and cannot monitor the shelf life of an opened object. For example, if the unopened milk may have a shelf life of up to 6 months and the opened milk is usually only 7 days, it is likely that the user, especially the elderly and children, will be ill by eating the expired food by mistake if the opened milk is still kept under the shelf life management and reminding of the 6 month shelf life.
Aiming at the problem that in the related technology, only the quality guarantee period of an unopened object can be monitored, so that the safety of the object is low in the actual use process, and the like, an effective solution is not provided.
Disclosure of Invention
The embodiment of the invention provides an object monitoring method, a refrigerator, a storage medium and an electronic device, which are used for at least solving the problems that in the related technology, only quality guarantee period monitoring can be carried out on an unopened object, so that the safety of the object is low in the actual use process and the like.
According to an aspect of an embodiment of the present invention, there is provided an object monitoring method, including: acquiring an opening time of a target object in an opened state in a refrigerator, wherein the opening time is used for indicating the time for changing the target object from an unopened state to an opened state; and determining the target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time.
In an exemplary embodiment, obtaining an opening time of an object in an opened state in a refrigerator includes at least one of: taking the time for putting a target object into a refrigerator as the opening time of the target object when detecting that the first weight of the target object currently put into the refrigerator is less than the total weight of the target object in an unopened state; and if the target object is detected to be put into the refrigerator for a plurality of times, taking the first obtained opening time as the opening time.
In one exemplary embodiment, acquiring a first weight of a target object currently put in a refrigerator by: acquiring a first weight of the target object currently put into the refrigerator through a pressure sensor arranged on a partition plate in the refrigerator; acquiring the total weight of the target object in an unopened state, including: performing image recognition on the target object currently placed in the refrigerator to obtain a recognition result; and acquiring the total weight of the target object in the unopened state from a local database or a server according to the identification result.
In one exemplary embodiment, the object put into the refrigerator again is determined to be the target object by at least: determining the current temperature of the target object through a temperature measurement module in the refrigerator; acquiring the current temperature in the refrigerator and the temperature of an area outside the refrigerator; and determining the object placed into the refrigerator again as the target object according to the current temperature of the target object, the current temperature in the refrigerator and the time of the target object outside the refrigerator.
In one exemplary embodiment, the object put into the refrigerator again is determined to be the target object by at least: acquiring a first image feature of a target object removed from the refrigerator and a second image feature of an object put into the refrigerator again; and determining that the object placed into the refrigerator again is the target object when the first image feature and the second image feature are consistent.
In an exemplary embodiment, monitoring usage of the target object according to the target shelf-life comprises: issuing an alert event if it is determined that the current time has exceeded the target shelf-life, wherein the alert event is at least indicative of a prohibition to eat the target object.
In one exemplary embodiment, issuing the alert event includes: issuing the alarm event if it is determined that the current time has exceeded the target shelf life and a weight reduction of a partition in which the pressure sensor is located is detected by a pressure sensor within the refrigerator to be consistent with a current weight of the target object.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the above object monitoring method when running.
According to another aspect of the embodiments of the present invention, there is provided an electronic apparatus, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the object monitoring method through the computer program.
According to another aspect of the embodiments of the present invention, there is also provided a refrigerator including a memory in which a computer program is stored and a processor configured to execute the above object monitoring method by the computer program.
In one exemplary embodiment, there is also provided a refrigerator including: a processor for acquiring an opening time of a target object in an opened state within a refrigerator, wherein the opening time is used for indicating a time when the target object is changed from an unopened state to an opened state; and determining the target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time.
In an exemplary embodiment, each partition board in the refrigerator is provided with a pressure sensor for acquiring a first weight of a target object currently put into the refrigerator, and the processor is further used for acquiring the total weight of the target object in an unopened state; and in the case that it is detected that a first weight of a target object currently put into a refrigerator is smaller than a total weight of the target object in an unopened state, setting a time for putting the target object into the refrigerator as an opening time of the target object.
In an exemplary embodiment, a sliding rail is arranged on a wall plate of the refrigerator, and an image acquisition device is arranged on the sliding rail, wherein the image acquisition device is used for moving to the side of the partition plate of the target object through the sliding rail, performing image identification on the target object currently placed in the refrigerator, and sending an obtained identification result to a processor; and the processor is used for acquiring the total weight of the target object in the unopened state from a local database or a server according to the identification result.
In an exemplary embodiment, a sliding rail is arranged on a wall plate of the refrigerator, and a temperature measuring module is arranged on the sliding rail, wherein the temperature measuring module is used for moving to the side of the partition plate where the target object is located through the sliding rail and obtaining the current temperature of the target object, and the processor is used for obtaining the current temperature in the refrigerator and the temperature of an area outside the refrigerator; and determining the object put into the refrigerator again as the target object according to the current temperature of the target object, the current temperature in the refrigerator, the temperature of the area outside the refrigerator and the time of the target object outside the refrigerator.
In an exemplary embodiment, a sliding rail is arranged on a wall plate of the refrigerator, and an image acquisition device is arranged on the sliding rail, wherein the image acquisition device is used for acquiring a first image feature of a target object taken out of the refrigerator and a second image feature of an object put into the refrigerator again, and sending the first image feature and the second image feature to a processor; the processor is used for comparing the first image characteristic with the second image characteristic, and determining that the object put into the refrigerator again is the target object under the condition that the first image characteristic is consistent with the second image characteristic.
In the embodiment of the invention, the opening time of the target object in the opened state in the refrigerator is acquired, wherein the opening time is used for indicating the time when the target object is changed from the unopened state to the opened state; and determining a target quality guarantee time of the target object according to the opening time, and monitoring the use of the target object according to the target quality guarantee time, namely monitoring the target object according to the opening time and the target quality guarantee time of the target object in an opened state. By adopting the technical scheme, the problem that in the related technology, the quality guarantee period of an unopened object can only be monitored, so that the safety of the object in the actual use process is low is solved, the quality guarantee period of the object is effectively monitored through the opened time of the object, and the safety of the object in the use process is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a refrigerator of an object monitoring method according to an embodiment of the present invention;
FIG. 2 is a flow diagram of an object monitoring method according to an embodiment of the invention;
FIG. 3 is a left side view of a refrigerator side wall according to an alternative embodiment of the present invention;
fig. 4 is a block diagram of a structure of a refrigerator according to an embodiment of the present invention;
fig. 5 is another structural block diagram of a refrigerator according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The method provided by the embodiment of the application can be executed in a refrigerator or a similar operation device. Taking an example of the operation on a refrigerator, fig. 1 is a hardware structure block diagram of the refrigerator of an object monitoring method according to an embodiment of the present invention. As shown in fig. 1, the refrigerator may include one or more (only one shown in fig. 1) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and in an exemplary embodiment, may further include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration, and it does not limit the structure of the refrigerator. For example, a refrigerator may also include more or fewer components than shown in FIG. 1, or have a different configuration with equivalent functionality to that shown in FIG. 1 or with more functionality than that shown in FIG. 1.
The memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the object monitoring method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located from the processor 102, which may be connected to the refrigerator over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of a refrigerator. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In the present embodiment, an object monitoring method is provided, which is applied to the above-mentioned refrigerator, and fig. 2 is a flowchart of an object monitoring method according to an embodiment of the present invention, where the flowchart includes the following steps:
step S202, acquiring an opening time of a target object in an opened state in a refrigerator, wherein the opening time is used for indicating the time for changing the target object from an unopened state to an opened state;
step S204, determining the target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time.
Through the steps, the opening time of the target object in the opened state in the refrigerator is obtained, wherein the opening time is used for indicating the time when the target object is changed from the unopened state to the opened state; and determining the target quality guarantee time of the target object according to the opening time, and monitoring the use of the target object according to the target quality guarantee time, namely monitoring the target object according to the opening time and the target quality guarantee time of the target object in an opened state. By adopting the technical scheme, the problem that in the related technology, the quality guarantee period of an unopened object can only be monitored, so that the safety of the object in the actual use process is low is solved, the quality guarantee period of the object is effectively monitored through the opened time of the object, and the safety of the object in the use process is improved.
The step S202 may have a plurality of implementation manners, and the embodiment of the present invention mainly provides two implementation schemes:
it should be noted that, in order to describe the technical solution more clearly, the target object includes at least one of the following: a first object, a second object.
First implementation
Acquiring a first weight of a first object currently put in a refrigerator and a total weight of the first object when the first object is in an unopened state, the opened state object including: the first object; when detecting that a first weight of a first object currently put into a refrigerator is less than a total weight of the first object when the first object is in an unopened state, setting a time for putting the first object into the refrigerator as an opening time of the first object.
It can be said that the first weight of the first object currently placed is acquired and compared with the total weight of the first object when the first object is not opened, and if the first weight is smaller than the total weight, the time when the first object is placed in the refrigerator is taken as the opening time. For example, after acquiring the first object, the user performs an opening operation on the first object, and puts the first object with a first weight of 400g into the refrigerator at 2:00 pm, and the first object has a total weight of 500g when not opened, because the first weight is less than the total weight, which indicates that the first object has been opened before being put into the refrigerator, and 100g is used, the opening time is considered as the time of putting into the refrigerator, i.e., 2:00 pm, and it should be noted that the above time and weight are only values selected for understanding the technical scheme of the embodiment of the present invention, and any possible values may be used in the actual operation process.
It should be noted that, when the first object is placed in the refrigerator, it is determined that the first object has been opened, the time for placing the first object is used as the opening time, and if the first object is placed in the refrigerator again after being removed from the refrigerator, it is determined that the object placed in the refrigerator is the first object.
And the first weight of the first object currently put in the refrigerator can be obtained by the following method: acquiring a first weight of a first object currently put in the refrigerator through a pressure sensor arranged on a partition plate in the refrigerator; obtaining a total weight of the first object when in an unopened state, comprising: carrying out image recognition on the first object currently placed in the refrigerator to obtain a recognition result; and acquiring the total weight of the first object in the unopened state from a local database or a server according to the identification result.
It can be understood that, a plurality of partitions are generally disposed on a refrigerator, each partition can be disposed with a pressure sensor, in order to make the sensing number of the pressure sensors more accurate, the pressure sensors can be disposed at four corners of the partition, when the pressure sensor on the partition senses the weight increase, it is determined that the first object is put into the refrigerator, the increased weight is the first weight of the first object, after the first object is put into the refrigerator, the image recognition device in the refrigerator performs image recognition on the first object, and sends the recognition result to the server, and the server analyzes the image recognition result, it should be noted that, if the processing capability of the refrigerator is good, the operation of analyzing the image recognition result can also be performed locally by the refrigerator, for example, the refrigerator can obtain the total weight of the first object in an unopened state from a local database, and if the total weight of the first object in the unopened state cannot be acquired in the local database, transmitting the result of image recognition to the server, and acquiring the total weight of the first object in the unopened state from the server.
The server may be any server that can acquire the entire weight of the first object when the first object is in the unopened state, and the present invention is not limited to this.
Second implementation
The unsealing time of the object in the unsealed state can be realized by the following scheme: acquiring a second weight by which a second object is taken out of the refrigerator and a third weight by which the second object is put into the refrigerator again; taking a time when the second object is removed from the refrigerator as an opening time of the second object in case that it is detected that a second weight of the second object removed from the refrigerator is greater than a third weight of the second object put into the refrigerator again, wherein the object includes at least one of: the first object, the second object.
That is, when the pressure sensor on the partition of the refrigerator senses a decrease in weight, it is determined that the second object is removed from the refrigerator, the decreased weight is a second weight of the second object, when the second object is put into the refrigerator again, a third weight of the second object is acquired, and when the third weight is less than the second weight, a time when the second object is removed is an unsealing time. For example, after the user acquires the second object, the user directly puts the second object into a refrigerator without any unsealing operation, takes the second object from the refrigerator at 3:00 pm, opens the second object outside the refrigerator, that is, unseals the second object at this time, and puts the second object into the refrigerator at 4:00 pm, the pressure sensor acquires a third weight of the second object after unsealing, and detects that the third weight is smaller than the second weight, and the unsealing time can be understood as 3:00 pm.
In the embodiment of the present invention, if the user takes out the target object from the refrigerator, and also takes out another object from the refrigerator before putting the target object into the refrigerator, in order to accurately determine the opening time, optionally, the object put into the refrigerator again is determined to be the target object by:
1) determining the current temperature of the target object through a temperature measurement module in the refrigerator; acquiring the current temperature in the refrigerator and the temperature of the area outside the refrigerator; determining an object placed into the refrigerator again as the target object according to the current temperature of the target object, the current temperature in the refrigerator, the temperature of the area outside the refrigerator and the time of the target object outside the refrigerator;
the technical scheme of the embodiment actually considers the specific heat capacity of the target object, the mass of the target object, and the time difference between the time when the target object is taken out of the refrigerator and the time when the target object is put into the refrigerator again, namely the time when the target object is out of the refrigerator, the heat change value (including the absorbed heat or the emitted heat) of the target object at the time difference is determined, the change range of the target object which can be changed from the current temperature to the target temperature can be determined through the temperature of the external area of the refrigerator and the current temperature of the refrigerator, and then if the heat change value is between the current temperature and the target temperature, the object which is put into the refrigerator again is determined as the target object.
2) Acquiring a first image feature of a target object taken out of the refrigerator and a second image feature of an object put into the refrigerator again; and determining that the object placed into the refrigerator again is the target object when the first image feature and the second image feature are consistent.
The method comprises the steps that image recognition is carried out on a target object taken away from a refrigerator and an object put into the refrigerator again through an image acquisition device in the refrigerator, a first image feature and a second image feature are further obtained, and the object put into the refrigerator again is confirmed to be the target object under the condition that the first image feature and the second image feature are consistent.
The above technical solution is mainly described from the perspective of how to monitor an object, and in order to effectively remind a user, in an optional embodiment, an alarm event is issued when it is determined that the current time has exceeded the target shelf life, wherein the alarm event is at least used to indicate that eating of the target object is prohibited.
In an optional embodiment, the alarm event is issued upon determining that the current time has exceeded the target shelf life and detecting, by a pressure sensor within the refrigerator, that a weight reduction of a partition in which the pressure sensor is located is consistent with a current weight of the target object.
That is, if the target object has passed between the predetermined target quality assurance periods and the expired target object is detected to be removed by the pressure sensor, an alarm event is issued, for example, by blinking the display of the refrigerator, or by issuing an alarm sound, or by sending an expiration reminder message to the terminal APP bound to the refrigerator, to remind the user to prohibit the use of the target object.
In order to better understand the process of the object monitoring method, the following describes a flow of the object monitoring implementation method with reference to an optional embodiment, but the flow is not limited to the technical solution of the embodiment of the present invention.
It should be noted that, the technical solution of the alternative embodiment of the present invention needs to be based on the hardware improvement of the existing refrigerator, and specifically includes:
1) the four corner ends of each partition board of the refrigerator are provided with pressure sensors to obtain the weight of the articles placed on each partition board, it should be noted that in order to improve the accuracy of pressure sensing, a greater number of pressure sensors can be arranged on each partition board, which is not limited in the embodiment of the present invention;
2) an arched sliding rail (as shown in figure 3) is arranged on three wall plates (not including a door plate) of the refrigerator, in figure 3, one wall plate (called as a side wall) is taken as an example for analysis, a movable base is arranged on the sliding rail, a detection unit is arranged on the base, and the detection unit comprises an infrared temperature measurement unit, an LED lamp and a camera; the detection unit may be rotatable within a certain range; a power supply copper rail is arranged in the sliding rail, the movable base is provided with an elastic sheet elastically connected with the power supply copper rail, and the power supply copper rail supplies power to the movable base and the detection unit;
the shape of the slide rail does not need to be the arc shape shown in fig. 3, in order to improve the detection efficiency, under the condition that the cost is properly increased, one slide rail can be correspondingly arranged on each partition plate, namely three independent slide rails exist on the three partition plates, and each slide rail is provided with one detection unit.
It should be noted that, the process of implementing object monitoring may be implemented by the following steps:
it should be noted that, in the actual implementation process, steps 1 to 7 in the optional embodiment of the present invention may flexibly adjust the implementation order, which is not limited in the embodiment of the present invention.
Step 1, when a pressure sensor of any partition plate detects that the pressure is increased, controlling a detection unit to move to the upper space of the partition plate for image acquisition and sending the image to a server, the server comparing the image with the image acquired last time by the partition plate to confirm an added commodity image, performing image recognition on the added commodity image, confirming the commodity (corresponding to a target object in the above embodiment), and acquiring information of the commodity (including but not limited to unopened quality guarantee period, opened quality guarantee period and commodity weight (corresponding to the total weight in the above embodiment)) from a database, if the commodity is not in the database, matching the images in one or more shopping malls of the internet, and when the commodity is matched, acquiring the information of the matched commodity and supplementing the information to the database;
step 2, the server performs feature recognition on the commodity appearance image, such as scratches and collision marks of the outer package of the commodity, to generate feature information (equivalent to the first image feature of the above embodiment), and acquires commodity feature information (equivalent to the second image feature of the above embodiment) fed back by the server;
alternatively, the image feature recognition method may adopt an HOG feature extraction method;
the HOG feature extraction method is to extract an image (an object to be detected or a scanning window):
1) graying (treating the image as a three-dimensional image in x, y, z (gray scale));
2) standardizing (normalizing) the color space of the input image by using a Gamma correction method; the method aims to adjust the contrast of the image, reduce the influence caused by local shadow and illumination change of the image and inhibit the interference of noise;
3) calculating the gradient (including magnitude and direction) of each pixel of the image; the method mainly aims to capture contour information and further weaken the interference of illumination;
4) dividing the image into small cells (e.g., 6 x 6 pixels/cell);
5) counting the gradient histogram (the number of different gradients) of each cell to form a descriptor of each cell;
6) forming each plurality of cells into a block (for example, 3 × 3 cells/block), and connecting the feature descriptors of all the cells in the block in series to obtain the HOG feature descriptor of the block;
7) the HOG feature descriptors of all blocks in the image are connected in series to obtain the HOG feature descriptor of the image (the target to be detected). This is the final feature vector available for classification.
Step 3, receiving the commodity information fed back by the server and the commodity image confirmed to be added, and comparing the weight of the commodity obtained by the pressure sensor with the weight of the commodity in the commodity information; if the quality guarantee period is within the set error, judging that the commodity is not unsealed, and managing and reminding the quality guarantee period of the commodity according to the unsealed quality guarantee period; otherwise, the commodity is determined to be unsealed, and the quality guarantee period management and reminding are carried out on the commodity according to the unsealed quality guarantee period, namely the technical scheme of the embodiment is that if the weight of the commodity which is currently put into the refrigerator is smaller than the total weight of the commodity which is not normally unsealed, the commodity is considered to be unsealed outside the refrigerator, and at the moment, the time of putting into the refrigerator can be considered as the unsealing time of the commodity;
step 4, when the pressure sensor of the partition plate detects that the pressure is reduced, controlling the detection unit to move to the upper space of the partition plate for image acquisition and sending the image to the server, comparing the image with the image acquired by the partition plate last time by the server to confirm the commodity image taken out by the user, carrying out image identification on the commodity image taken out and confirming the commodity taken out; receiving the taken out commodity information sent by the server; the commodity information acquisition mode is the same as the commodity acquisition mode limited in the step 1;
step 5, when the pressure sensor of any partition plate detects that the pressure is increased within a first set time (for example, within 10 minutes), controlling the detection unit to move to the space above the partition plate for image acquisition, sending the image to the server, comparing the image with the image acquired by each partition plate last time by the server to confirm the added commodity image, carrying out image identification on the added commodity image, confirming whether the commodity takes out the same type of commodity of the commodity last time, and receiving confirmation information sent by the server if the commodity is the same type of commodity;
under the condition of the same kind of information, judging whether the commodity is unsealed or not through a pressure sensor (comparing the current weight with the weight of the commodity in the commodity information), if the commodity is unsealed, setting the putting-in time as unsealing time, and resetting the quality guarantee period of the commodity as unsealing quality guarantee period;
judging that a new commodity is put in under the condition that the commodity is not similar information;
step 6, when the pressure sensor of any partition plate detects pressure increase within a second set time (for example, within 2 hours and longer than the first set time), the detection unit is controlled to move to the space above the partition plate for image acquisition, and the image is sent to the server, the server compares the image with the image acquired by the partition plate last time to confirm the added commodity image, performs image recognition on the added commodity image to confirm whether the commodity takes out the same kind of commodity of the commodity last time, and if the commodity is the same kind of commodity, receives confirmation information sent by the server; the following includes two schemes, and scheme a and scheme B may be used alone or together.
Scheme A: if the current weight is less than the weight of the commodity in the commodity information, the detection unit is moved and controlled to rotate, an infrared temperature measurement unit of the detection unit is aligned with the commodity to measure the temperature, whether the commodity is the commodity taken out last time is judged according to the current temperature of the commodity, the current temperature of the refrigerator and the temperature outside the refrigerator (component information in the commodity information can be included, and the specific heat capacity of liquid in the commodity is calculated), the commodity is judged to be the commodity taken out last time (the information can be sent to a server to carry out calculation judgment if the calculation capacity of the refrigerator is limited), if the current temperature of the commodity is within the calculated temperature range, the commodity is judged to be the commodity taken out last time, and the opening time is set, resetting the quality guarantee period of the commodity as the unsealing quality guarantee period; under the condition that the commodity is not the same type of information, judging that a new commodity is put in;
scheme B: under the condition of the same kind of information, judging whether the commodity is unsealed or not through a pressure sensor (comparing the current weight with the commodity weight in the commodity information), if the current weight is smaller than the commodity weight in the commodity information, judging whether commodity characteristic information contained in the currently acquired information is consistent with commodity characteristic information fed back by a server acquired last time, if so, judging that the commodity is a commodity taken out last time, setting the putting-in time as unsealing time, and resetting the quality guarantee period of the commodity as unsealing quality guarantee period;
judging that a new commodity is put in under the condition that the commodity is not similar information;
and 7, when the unsealed commodity is overdue, when the weight of the partition board is consistent with the weight of the commodity, the overdue information is sent to the APP of the user through voice, a screen on the refrigerator, the overdue information is sent to the intelligent sound box, one or more combinations in voice playing modes are carried out on the user, and the user is prevented from eating the overdue food by mistake.
According to the optional embodiment of the invention, whether the commodity is unsealed or not can be comprehensively judged through weight, temperature, image recognition and the like, and the unsealing time period can be determined, so that the precise quality guarantee period management and quality guarantee period reminding of the commodity are realized.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a refrigerator is further provided, and fig. 4 is a block diagram of a refrigerator according to an embodiment of the present invention, as shown in fig. 4, including: a processor 40, configured to acquire an opening time of a target object in an opened state within a refrigerator, wherein the opening time is used to indicate a time when the target object changes from an unopened state to an opened state; determining a target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time; a memory 50 for storing a computer program.
By the scheme, the opening time of the target object in the opened state in the refrigerator is acquired, wherein the opening time is used for indicating the time for changing the target object from the unopened state to the opened state; the target quality guarantee period of the target object is determined according to the unsealing time, the target object is monitored according to the target quality guarantee period, namely the target object is monitored according to the unsealing time and the target quality guarantee period of the target object in an unsealed state.
It should be noted that, in the embodiment of the present invention, there is a connection between the image capturing device 42, the pressure sensor 44, and the processor 40, and the specific connection mode may be a connection mode that can be implemented by wireless, wired, and the like, as shown in fig. 5, the connection mode between the three is merely an example, and the embodiment of the present invention is not limited thereto.
In an exemplary embodiment, each partition in the refrigerator is provided with a pressure sensor, the pressure sensors are used for acquiring a first weight of a first object currently put in the refrigerator, and the processor is also used for acquiring the total weight of the first object in an unopened state; when detecting that a first weight of a first object currently put into a refrigerator is smaller than a total weight of the first object in an unopened state, setting a time when the first object is put into the refrigerator as an opening time of the first object.
It can be said that, after the first weight of the first object currently placed is acquired, the first weight is compared with the total weight of the first object when the first object is not opened, and if the first weight is smaller than the total weight, the time when the first object is placed in the refrigerator is used as the opening time. For example, after acquiring the first object, the user performs an opening operation on the first object, and puts the first object with a first weight of 400g into the refrigerator at 2:00 pm, and the first object has a total weight of 500g when not opened, because the first weight is less than the total weight, which indicates that the first object has been opened before being put into the refrigerator, and 100g is used, the opening time is considered as the time of putting into the refrigerator, i.e., 2:00 pm, and it should be noted that the above time and weight are only values selected for understanding the technical scheme of the embodiment of the present invention, and any possible values may be used in the actual operation process.
It should be noted that, when the first object is placed in the refrigerator, it is determined that the first object has been opened, the time for placing the first object is used as the opening time, and if the first object is placed in the refrigerator again after being removed from the refrigerator, it is determined that the object placed in the refrigerator is the first object.
In an exemplary embodiment, a sliding rail is arranged on a wall plate of the refrigerator, and an image acquisition device is arranged on the sliding rail, wherein the image acquisition device is used for moving to the side of the partition plate of the first object through the sliding rail, identifying the image of the first object currently placed in the refrigerator, and sending the obtained identification result to a processor; and the processor is used for acquiring the total weight of the first object in the unopened state from a local database or a server according to the identification result.
It can be understood that, a plurality of partitions are generally disposed on a refrigerator, each partition can be disposed with a pressure sensor, in order to make the sensing number of the pressure sensors more accurate, the pressure sensors can be disposed at four corners of the partition, when the pressure sensor on the partition senses the weight increase, it is determined that the first object is placed in the refrigerator, the increased weight is the first weight of the first object, after the first object is placed in the refrigerator, the image recognition device in the refrigerator performs image recognition on the first object, the image recognition device in the refrigerator is located on a sliding rail of a refrigerator wall, and sends the recognition result to a server, the server analyzes the result of the image recognition, it should be noted that, if the processing capability of the refrigerator is good, the operation of analyzing the result of the image recognition can also be performed locally by the refrigerator, for example, the refrigerator can obtain the total weight of the first object in an unopened state from a local database, and if the total weight of the first object in the unopened state cannot be acquired in the local database, transmitting the result of image recognition to the server, and acquiring the total weight of the first object in the unopened state from the server.
In an exemplary embodiment, the pressure sensor is further configured to acquire a second weight of a second object taken out of the refrigerator and a third weight of the second object put into the refrigerator again; the processor is further configured to, in a case where it is detected that a second weight of a second object removed from the refrigerator is greater than a third weight of a second object put into the refrigerator again, take a time at which the second object is removed from the refrigerator as an opening time of the second object.
That is, when the pressure sensor on the partition of the refrigerator senses a decrease in weight, it is determined that the second object is removed from the refrigerator, the decreased weight is a second weight of the second object, when the second object is put into the refrigerator again, a third weight of the second object is acquired, and when the third weight is less than the second weight, a time when the second object is removed is an unsealing time. For example, after the user acquires the second object, the user directly puts the second object into a refrigerator without any unsealing operation, takes the second object from the refrigerator at 3:00 pm, opens the second object outside the refrigerator, that is, unseals the second object at this time, and puts the second object into the refrigerator at 4:00 pm, the pressure sensor acquires a third weight of the second object after unsealing, and detects that the third weight is smaller than the second weight, and the unsealing time can be understood as 3:00 pm.
In an exemplary embodiment, the image capturing device is further configured to acquire a first image feature of a target object taken out of the refrigerator and a second image feature of an object put into the refrigerator again; and determining that the object placed into the refrigerator again is the target object when the first image feature and the second image feature are consistent.
The method comprises the steps that image recognition is carried out on a target object taken away from a refrigerator and an object put into the refrigerator again through an image acquisition device in the refrigerator, a first image feature and a second image feature are further obtained, and the object put into the refrigerator again is confirmed to be the target object under the condition that the first image feature and the second image feature are consistent.
In an exemplary embodiment, a sliding rail is arranged on a wall plate of the refrigerator, and a temperature measuring module is arranged on the sliding rail, wherein the temperature measuring module is used for moving to the side of the partition plate where the target object is located through the sliding rail and obtaining the current temperature of the target object, and the processor is used for obtaining the current temperature in the refrigerator and the temperature of an area outside the refrigerator; and determining the object placed into the refrigerator again as the target object according to the current temperature of the target object, the current temperature in the refrigerator, the temperature of the area outside the refrigerator and the time of the target object outside the refrigerator.
The technical scheme of the embodiment actually considers the specific heat capacity of the target object, determines the heat change value (including absorbed heat or released heat) of the target object at the time difference according to the specific heat capacity of the target object, the mass of the target object, the time difference between the time when the target object is taken out of the refrigerator and the time when the target object is put into the refrigerator again, can determine the change range of the target object from the current temperature to the target temperature according to the temperature of the external area of the refrigerator and the current temperature of the refrigerator, and then determines that the object put into the refrigerator again is the target object if the heat change value is between the current temperature and the target temperature.
In an exemplary embodiment, the processor is further configured to issue an alert event upon determining that the current time has exceeded the target shelf-life, wherein the alert event is at least indicative of a prohibition of consuming the target object.
In one exemplary embodiment, the alarm event is issued upon determining that the current time has exceeded the target shelf life and detecting, by a pressure sensor within the refrigerator, that a weight of a partition in which the pressure sensor is located has decreased is consistent with a current weight of the target object.
If the target quality guarantee period determined by the target object is over, and the pressure sensor detects that the overdue target object is taken away, an alarm event is sent out, for example, through continuous flashing of a display screen of a refrigerator, or a prompt tone is sent out, or information of overdue reminding is sent to a terminal APP bound with the refrigerator, and a user is reminded of forbidding using the target object.
An embodiment of the present invention further provides a storage medium including a stored program, wherein the program executes any one of the methods described above.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, acquiring the unsealing time of the target object in the unsealed state in the refrigerator, wherein the unsealing time is used for indicating the time when the target object is changed from the unopened state to the unsealed state;
s2, determining the target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, acquiring an opening time of a target object in an opened state in a refrigerator, wherein the opening time is used for indicating a time when the target object is changed from an unopened state to an opened state;
s2, determining the target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized in a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a memory device and executed by a computing device, and in some cases, the steps shown or described may be executed out of order, or separately as individual integrated circuit modules, or multiple modules or steps thereof may be implemented as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An object monitoring method, comprising:
acquiring an opening time of a target object in an opened state in a refrigerator, wherein the opening time is used for indicating the time for changing the target object from an unopened state to an opened state;
determining a target quality guarantee time of the target object according to the unsealing time, and monitoring the use of the target object according to the target quality guarantee time;
the method for acquiring the unsealing time of the object in the unsealed state in the refrigerator at least comprises one of the following steps:
taking the time for putting a target object into a refrigerator as the opening time of the target object when detecting that the first weight of the target object currently put into the refrigerator is less than the total weight of the target object in an unopened state;
when the target object is detected to be placed into the refrigerator for multiple times, taking the first obtained opening time as the opening time;
wherein the method further comprises:
determining that the object put into the refrigerator again is the target object at least by:
determining the current temperature of the target object through a temperature measurement module in the refrigerator;
acquiring the current temperature in the refrigerator and the temperature of an area outside the refrigerator;
and determining the object placed into the refrigerator again as the target object according to the current temperature of the target object, the current temperature in the refrigerator, the temperature of the area outside the refrigerator and the time of the target object outside the refrigerator.
2. The method of claim 1, wherein obtaining the first weight of the target object currently placed in the refrigerator comprises:
acquiring a first weight of the target object currently put into the refrigerator through a pressure sensor arranged on a partition plate in the refrigerator;
obtaining a total weight of the target object when in an unopened state, comprising:
carrying out image recognition on the target object currently placed in the refrigerator to obtain a recognition result;
and acquiring the total weight of the target object in the unopened state from a local database or a server according to the identification result.
3. The method of claim 1, further comprising:
determining that the object put into the refrigerator again is the target object at least by:
acquiring a first image feature of a target object removed from the refrigerator and a second image feature of an object put into the refrigerator again;
and determining that the object placed into the refrigerator again is the target object when the first image feature and the second image feature are consistent.
4. The method of any one of claims 1 to 3, wherein monitoring the use of the target object based on the target shelf-life comprises:
issuing an alert event if it is determined that the current time has exceeded the target shelf-life, wherein the alert event is to indicate at least a prohibition of consuming the target object.
5. The method of claim 4, wherein issuing the alarm event comprises:
issuing the alarm event if it is determined that the current time has exceeded the target shelf life and a weight reduction of a partition in which the pressure sensor is located is detected by a pressure sensor within the refrigerator to be consistent with a current weight of the target object.
6. A computer-readable storage medium, comprising a stored program, wherein the program is operable to perform the method of any one of claims 1 to 5.
7. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method of any of claims 1 to 5 by means of the computer program.
8. A refrigerator comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method of any of claims 1 to 5 by means of the computer program.
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| CN113469643A (en) * | 2021-06-18 | 2021-10-01 | 深圳市点购电子商务控股股份有限公司 | Quality guarantee period reminding method and device and storage medium |
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