CN112444096A - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN112444096A CN112444096A CN201910799344.6A CN201910799344A CN112444096A CN 112444096 A CN112444096 A CN 112444096A CN 201910799344 A CN201910799344 A CN 201910799344A CN 112444096 A CN112444096 A CN 112444096A
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- refrigerator
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 94
- 238000013459 approach Methods 0.000 claims abstract description 23
- 230000003993 interaction Effects 0.000 claims abstract description 13
- 230000002452 interceptive effect Effects 0.000 description 13
- 230000000875 corresponding effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/04—Sensors detecting the presence of a person
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a control method of a refrigerator, the refrigerator comprises a control device, a detection device for detecting a preset detection area in front of the refrigerator and an interaction device controlled by the control device, the control method comprises the following steps: when a user enters the preset detection area, the detection device acquires a detection signal of the user entering the preset detection area; and comparing the strengths of the first detection signal and the second detection signal which are acquired in tandem to judge whether the user is in a trend close to the refrigerator or in a trend far away from the refrigerator. Whether the human body approaches the refrigerator or not is detected more accurately, and whether corresponding follow-up actions are executed or not is further determined, so that the misjudgment rate is greatly reduced; meanwhile, the experience of human-computer interaction is also improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a household refrigerator and a control method thereof.
Background
With the continuous progress of society, users put higher requirements on the intellectualization and humanization of traditional household appliances. For example, a refrigerator capable of automatically detecting whether a human body approaches is disclosed in the prior art, and the refrigerator performs a corresponding action when the human body approaches, thereby providing a better use experience for a user. The chinese patent application with publication number CN102878775A discloses a scheme for realizing human body proximity detection by using an infrared sensor, but still has the possibility of erroneous judgment.
Disclosure of Invention
The invention aims to provide a more perfect control method for detecting human body approaching of a refrigerator, so that whether the human body approaches the refrigerator or not is more accurately detected, and misjudgment is reduced.
In order to achieve the above object, the present invention provides a control method of a refrigerator, the refrigerator including a control device, a detection device for detecting a predetermined detection area in front of the refrigerator, and an interaction device controlled by the control device, the control method including the steps of:
when a user enters the preset detection area, the detection device acquires a detection signal of the user entering the preset detection area;
and comparing the strengths of the first detection signal and the second detection signal which are acquired in tandem to judge whether the user is in a trend close to the refrigerator or in a trend far away from the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: and when the intensity of the second detection signal is greater than that of the first detection signal, judging that the user is in a trend of approaching the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: and when the intensity of the second detection signal is smaller than that of the first detection signal, judging that the user is in a trend away from the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: and when the difference value obtained by subtracting the intensity of the first detection signal from the intensity of the second detection signal reaches a preset difference value, judging that the user is in a trend of approaching the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: and when the difference value obtained by subtracting the intensity of the first detection signal from the intensity of the second detection signal is larger than zero and smaller than a preset difference value, delaying preset time to judge whether the user is in a trend of approaching the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: after delaying for a predetermined time, if the user is still in the predetermined detection area, it is judged that the user is in a tendency to approach the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: and when the difference value obtained by subtracting the intensity of the second detection signal from the intensity of the first detection signal reaches a preset difference value, judging that the user is in a trend away from the refrigerator.
As a further improvement of the present invention, the control method includes the steps of: when the user is judged to be in the trend of approaching the refrigerator, the control device starts and/or changes the work of the interaction device.
As a further improvement of the invention, the control means initiating and/or changing the operation of the interaction means comprises: lighting and/or changing the brightness of a lamp of a refrigerator, lighting and/or changing the brightness of a user interface, and automatically opening a refrigerator door.
As a further improvement of the present invention, the control method includes the steps of: when the user approaches the refrigerator gradually, the control device gradually changes the operation of the interaction device. For example gradually changing the operating state or operating mode of the interaction means.
Another aspect of the present invention also provides a refrigerator that operates according to the control method of a refrigerator described in any one of the above embodiments to determine whether a user approaches the refrigerator.
The invention has the beneficial effects that: the method for detecting the approach of the human body to the refrigerator based on the strength comparison of the front detection signal and the rear detection signal can more accurately detect whether the human body approaches the refrigerator or not, further determine whether to execute corresponding follow-up actions or not, and greatly reduce the misjudgment rate; meanwhile, the work of the interaction device is gradually changed correspondingly based on the fact that the user is closer to the refrigerator, for example, the brightness of a refrigerator lamp or a user interface is gradually improved, and the human-computer interaction experience is greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic diagram of the main flow of the control method for detecting whether a user approaches the refrigerator according to the present invention;
fig. 3 is another flow chart illustrating a control method for detecting whether a user approaches the refrigerator according to the present invention.
Detailed Description
The invention provides a new work control method of a refrigerator, so that whether a human body approaches the refrigerator or not is detected more accurately, and misjudgment is reduced.
The main inventive concept of the present invention is to provide a control method of a refrigerator, the refrigerator comprising a control device, a detection device for detecting a predetermined detection area in front of the refrigerator, and an interaction device controlled by the control device, the control method comprising the steps of:
when a user enters the preset detection area, the detection device acquires a detection signal of the user entering the preset detection area;
and comparing the strengths of the first detection signal and the second detection signal which are acquired in tandem to judge whether the user is in a trend close to the refrigerator or in a trend far away from the refrigerator.
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.
Fig. 1 is a schematic view of the overall structure of the refrigerator of the present invention. The embodiment of the invention is described by taking a two-door refrigerator as an example, but the invention is not limited to the two-door refrigerator, and can also be applied to a three-door refrigerator, a side-by-side refrigerator or a multi-door refrigerator. As shown in fig. 1, the refrigerator 100 includes a cabinet 10 having storage compartments for storing articles and a door body that can close the storage compartments, the door body including an upper door 21 and a lower door 22 that respectively close different storage compartments. The detecting device 30 is disposed on the upper door 21 and is used for detecting whether a user approaches the refrigerator in a predetermined detecting area in front of the refrigerator 100, but the detecting device may be disposed on another door body or another position on the door body. The control device 40 of the refrigerator controls whether the interactive device, which may be the user interface 50 provided on the upper door 21 in the present embodiment, is turned on and operates and whether the operation mode of the interactive device is changed, etc., based on the result of the detection of whether the user approaches the refrigerator. Of course, the interactive device can also be a lamp on the refrigerator or a door body capable of being automatically opened and the like. The starting of the operation of the interactive device and the changing of the operation mode of the interactive device may specifically include: lighting and/or changing the brightness of a light of a refrigerator, lighting and/or changing the brightness of a user interface, and automatically opening a refrigerator door, etc.
In order to more accurately detect whether a user approaches the refrigerator, the present invention provides a more complete control method of the refrigerator, and the specific control flow is as shown in fig. 2, the refrigerator 100 starts to operate, and the control device 40 controls the detection device 30 to detect a predetermined detection area in front of the refrigerator, so as to obtain two detection signals at a predetermined time interval in front and behind, which are a first detection signal in front and a second detection signal behind, respectively.
Then, the intensities of the first and second detection signals are compared to determine whether a user approaches the refrigerator. Generally, the detection signal obtained by the detection device is converted into a voltage signal, so as to compare the intensities of different voltage signals. When the intensity of the second detection signal is greater than that of the first detection signal, it indicates that the user is approaching the refrigerator more and more, so the control device determines that the user is approaching the refrigerator based on the intensity of the second detection signal, and further controls the interactive device of the refrigerator to start and perform subsequent work, such as turning on a lamp of the refrigerator or lighting a user interface, and determines that the user is approaching the refrigerator more and more as the intensity of the detection signal is greater and greater, thereby gradually increasing the brightness of the lamp or the user interface. When the intensity of the second detection signal is smaller than that of the first detection signal, it indicates that the user is more and more away from the refrigerator, so the control device determines that the user is in a trend of being away from the refrigerator based on the intensity of the second detection signal, and further controls the interactive device of the refrigerator not to be started.
Further, the control flow can be further optimized such that as shown in fig. 3, the refrigerator 100 starts to operate, and the control device 40 controls the detection device 30 to detect a predetermined detection area in front of the refrigerator, so as to obtain two detection signals at a predetermined time interval in tandem, namely, a first detection signal in front and a second detection signal in back. Then, the intensity of the first detection signal is subtracted from the intensity of the second detection signal to obtain a difference value, the difference value is compared with a predetermined value, and whether a user approaches the refrigerator is determined according to the comparison result.
When the difference is greater than or equal to the preset value, it indicates that the user is closer to the refrigerator, so the control device determines that the user is in a trend of being closer to the refrigerator based on the difference, and further controls the interactive device of the refrigerator to start and perform subsequent work, such as turning on a lamp of the refrigerator or lighting a user interface, and determines that the user is closer to the refrigerator as the intensity of the detection signal is greater, so as to gradually increase the brightness of the lamp or the user interface.
When the difference is larger than zero and smaller than the preset value, the control device judges whether the stay time of the user in the preset detection area exceeds the preset time based on the detection signal, and judges whether the user approaches the refrigerator. When the stay time of the user in the preset detection area exceeds the preset time, the fact that the user intends to use the refrigerator and tends to approach the refrigerator is indicated, and therefore the control device judges that the user tends to approach the refrigerator based on the stay time, and further controls the interactive device of the refrigerator to start and carry out follow-up work. When the stay time of the user in the preset detection area does not exceed the preset time, the fact that the user is far away from the refrigerator is indicated, and therefore the control device judges the trend that the user is far away from the refrigerator based on the stay time, and further controls the interactive device of the refrigerator not to be started.
Or, the control device controls to delay for a preset time and then judges whether a user approaches the refrigerator. After delaying the preset time, if the user is still in the preset detection area in front of the refrigerator, the fact that the user intends to use the refrigerator and is in the trend of approaching the refrigerator is indicated, so that the control device judges that the user is in the trend of approaching the refrigerator on the basis of the trend, and further controls the interactive device of the refrigerator to start and carry out subsequent work. And after the preset time is delayed, if the user is not in the preset detection area in front of the refrigerator, the fact that the user is far away from the refrigerator is indicated, so that the control device judges that the user is in a trend of being far away from the refrigerator based on the fact that the user is far away from the refrigerator, and further controls the interactive device of the refrigerator not to be started.
If the user is always in the preset detection area in front of the refrigerator, the detection device can always obtain the detection signal, and the control device determines whether the user is in the preset detection area in front of the refrigerator or not based on the detection signal, and can also determine the staying time of the user in the preset detection area based on the detection signal.
When the difference value is less than zero, the user is far away from the refrigerator, so that the control device judges the trend that the user is far away from the refrigerator based on the difference value, and further controls the interactive device of the refrigerator not to be started.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A control method of a refrigerator including a control device, a detection device for detecting a predetermined detection area in front of the refrigerator, and an interaction device controlled by the control device, the control method comprising the steps of:
when a user enters the preset detection area, the detection device acquires a detection signal of the user entering the preset detection area;
and comparing the strengths of the first detection signal and the second detection signal which are acquired in tandem to judge whether the user is in a trend close to the refrigerator or in a trend far away from the refrigerator.
2. The control method of a refrigerator as claimed in claim 1, wherein the control method comprises the steps of: and when the intensity of the second detection signal is greater than that of the first detection signal, judging that the user is in a trend of approaching the refrigerator.
3. The control method of a refrigerator according to claim 1 or 2, wherein the control method comprises the steps of: and when the intensity of the second detection signal is smaller than that of the first detection signal, judging that the user is in a trend away from the refrigerator.
4. The control method of a refrigerator as claimed in claim 2, wherein the control method comprises the steps of: and when the difference value obtained by subtracting the intensity of the first detection signal from the intensity of the second detection signal reaches a preset difference value, judging that the user is in a trend of approaching the refrigerator.
5. The control method of a refrigerator as claimed in claim 2, wherein the control method comprises the steps of: and when the difference value obtained by subtracting the intensity of the first detection signal from the intensity of the second detection signal is larger than zero and smaller than a preset difference value, delaying preset time to judge whether the user is in a trend of approaching the refrigerator.
6. The control method of a refrigerator as claimed in claim 5, wherein the control method comprises the steps of: after delaying for a predetermined time, if the user is still in the predetermined detection area, it is judged that the user is in a tendency to approach the refrigerator.
7. The control method of a refrigerator according to claim 3, wherein the control method comprises the steps of: and when the difference value obtained by subtracting the intensity of the second detection signal from the intensity of the first detection signal reaches a preset difference value, judging that the user is in a trend away from the refrigerator.
8. The control method of a refrigerator according to claim 1 or 2, wherein the control method comprises the steps of: when the user is judged to be in the trend of approaching the refrigerator, the control device starts and/or changes the work of the interaction device.
9. The method as claimed in claim 8, wherein the controlling means starts and/or changes the operation of the interacting means comprises: lighting and/or changing the brightness of a lamp of a refrigerator, lighting and/or changing the brightness of a user interface, and automatically opening a refrigerator door.
10. The control method of a refrigerator as claimed in claim 8, wherein the control method comprises the steps of: when the user approaches the refrigerator gradually, the control device gradually changes the operation of the interaction device.
11. A refrigerator characterized in that it operates according to the control method of a refrigerator according to any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799344.6A CN112444096A (en) | 2019-08-28 | 2019-08-28 | Refrigerator and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799344.6A CN112444096A (en) | 2019-08-28 | 2019-08-28 | Refrigerator and control method thereof |
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| CN112444096A true CN112444096A (en) | 2021-03-05 |
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| CN201910799344.6A Pending CN112444096A (en) | 2019-08-28 | 2019-08-28 | Refrigerator and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273714A1 (en) * | 2021-07-01 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigeration device control method and refrigeration device |
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| WO2011116605A1 (en) * | 2010-03-26 | 2011-09-29 | 海信容声(广东)冰箱有限公司 | Control device and method for refrigerator display panel backlight |
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Application publication date: 20210305 |