CN112629108A - Refrigerator with internal projection function - Google Patents

Refrigerator with internal projection function Download PDF

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Publication number
CN112629108A
CN112629108A CN201910907461.XA CN201910907461A CN112629108A CN 112629108 A CN112629108 A CN 112629108A CN 201910907461 A CN201910907461 A CN 201910907461A CN 112629108 A CN112629108 A CN 112629108A
Authority
CN
China
Prior art keywords
refrigerator
virtual
projection
preset
projection device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910907461.XA
Other languages
Chinese (zh)
Inventor
李涛
苏翔飞
侯建国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN201910907461.XA priority Critical patent/CN112629108A/en
Publication of CN112629108A publication Critical patent/CN112629108A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • F25D23/00—General constructional features
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects

Abstract

The invention provides a refrigerator with an internal projection function, which comprises a refrigerator body, a first projection unit, a second projection unit and a control unit, wherein the refrigerator body is provided with an internal projection function; the door body induction device is arranged in the box body; the door body sensing device is configured to detect a door opening event of the refrigerator and generate a first door opening signal within a specified time period after the refrigerator opens a door; the virtual projection device is configured to be started after a first door opening signal generated by the door body sensing device is acquired, and whether a shield exists on a preset projection path is judged; and when judging that no shielding object exists on the preset projection path, projecting the virtual control panel to the designated area based on the preset projection path of the virtual projection device. The refrigerator provided by the invention can detect whether a shield exists on the preset projection path, projects the virtual control panel under the condition that no shield exists, and starts the touch panel under the condition that the shield exists, so that the use requirement of a user is met, and the user experience is improved.

Description

Refrigerator with internal projection function
Technical Field
The invention relates to the field of refrigerators, in particular to a refrigerator with an internal projection function.
Background
At present, a touch panel or different operation buttons are often arranged on the outer side of a refrigerator door body or other refrigerator bodies in the touch technology of the refrigerator to control the operation parameters and the like of the refrigerator, most of the touch technology is display panels carrying LED lamps, and the touch technology is simple in structure and single in function. Moreover, because the display modules of the refrigerator are mostly carried outside the door body of the refrigerator, along with the intellectualization of the refrigerator, the functions inside the refrigerator are more and more, and when the refrigerator is opened, the setting of the functions of the refrigerator is limited.
At present, although a virtual projection technology is also adopted to project the touch panel outside the refrigerator, the touch panel is mainly used for collecting relevant operation information of a user through a camera, and the difficulty and the relevant cost for realizing the scheme are also higher.
Disclosure of Invention
An object of the present invention is to provide a refrigerator having an internal projection function.
A further object of the present invention is to provide a control method for a virtual control panel for a refrigerator interior projection.
Another further object of the present invention is to simplify the projection route shielded by the shielding object during the projection inside the refrigerator.
In particular, the present invention provides a refrigerator having an interior projection function, the refrigerator including; the door body induction device is arranged in the box body; wherein the content of the first and second substances,
the door body sensing device is configured to detect a door opening event of the refrigerator and generate a first door opening signal within a specified time period after the refrigerator is opened;
the virtual projection device is configured to be started after a first door opening signal generated by the door body sensing device is acquired, and whether a shield exists on a preset projection path is judged;
and when judging that no shielding object exists on the preset projection path, projecting the virtual control panel into the designated area based on the preset projection path.
Furthermore, the box body defines a storage chamber, the storage chamber comprises a refrigeration chamber, the virtual projection device is arranged in the middle of the top of the refrigeration chamber, and the distance between the virtual projection device and the front end of the box body is within a preset distance range;
the virtual projection device includes:
the processor is configured to start after the first door opening signal is acquired, and judge whether a shield exists on a preset projection path;
the projection assembly is configured to project a virtual control panel into a designated area at the bottom of the refrigerating compartment based on the preset projection path when the processor judges that no shielding object exists on the preset projection path;
wherein, the appointed area is located the projection region of letting the position district for the setting of door body storing box in cold-stored room bottom in cold-stored room.
Further, the virtual projection apparatus further includes: an infrared detection assembly;
the infrared detection assembly is configured to be started and emit an infrared signal after a first door opening signal generated by the door body sensing device is acquired;
receiving an infrared reflection signal of the infrared signal after the infrared signal is reflected by a reflector;
acquiring a first propagation time from the emission of the infrared signal to the reception of the infrared reflection signal and a first propagation speed of the infrared signal;
calculating a first distance between the virtual projection device and the reflector according to the first propagation time and the first propagation speed, and transmitting the first distance to the processor;
and the processor is also configured to judge whether the virtual projection device has a shelter on the preset projection path based on the first distance calculated by the infrared detection component.
Further, the processor is also configured to calculate a first difference value between the first distance calculated by the infrared detection component and a preset distance from the top to the bottom of the refrigeration compartment;
when the first difference value is within the first specified distance range, judging that no shielding object exists on the preset projection path of the virtual projection device;
and when the first difference exceeds the first specified distance range, judging that the virtual projection device has a shielding object on the preset projection path.
Further, the virtual projection apparatus further includes: an ultrasonic ranging assembly;
the ultrasonic ranging assembly is configured to start and transmit an ultrasonic signal after acquiring the first door opening signal;
receiving a reflected signal of the ultrasonic signal after the ultrasonic signal meets a reflector;
acquiring a second propagation time of the ultrasonic signal from emission to reception of the reflected signal and a second propagation speed of the ultrasonic signal;
calculating a second distance between the virtual projection device and the reflector according to the second propagation time and the second propagation speed;
and the processor is also configured to judge whether the virtual projection device has a shelter on the preset projection path based on the second distance calculated by the ultrasonic ranging component.
Further, the processor is further configured to calculate a second difference value between the second distance calculated by the ultrasonic ranging component and the preset distance from the top to the bottom of the refrigeration compartment;
when the second difference value is within a second specified distance range, judging that no shielding object exists on the preset projection path of the virtual projection device;
and when the second difference exceeds a second specified distance range, judging that the virtual projection device has a shielding object on the preset projection path.
Furthermore, a touch panel is arranged in the cold storage chamber;
the touch panel is configured to be started when the virtual projection device judges that the virtual projection device has a shield on a preset projection path;
the operation of a user on the touch panel is detected, and a first operation instruction corresponding to the operation is generated and provided for the main control panel of the refrigerator, so that the main control panel can respond to the first operation instruction.
Further, the door body sensing device is also configured to detect the door opening state of the refrigerator when the touch panel is in the starting state, and send a second door opening signal to the virtual projection device when the refrigerator keeps the door opening state;
the virtual projection device is also configured to judge whether a shielding object still exists on a preset projection path at a preset time interval after receiving a second door opening signal sent by the door body sensing device;
and when no shielding object exists on the preset projection path, starting the virtual control panel, and projecting the virtual control panel into the designated area.
Further, the touch panel is also configured to continue to keep the starting state when the virtual projection device judges that the shielding object still exists on the preset projection path; or
And when the virtual projection device is started, the virtual projection device is closed.
Further, the virtual projection device is further configured to recognize the operation of the user on the virtual control panel, and generate a second operation instruction corresponding to the operation to be provided to the main control panel of the refrigerator, so that the main control panel responds to the second operation instruction.
The refrigerator with the internal projection function is convenient for internal function display and control adjustment of the refrigerator by projecting the virtual projection device on the virtual control panel in the storage compartment of the refrigerator, and particularly, when a refrigerator door body is in an open state, the virtual control panel can be projected in a designated area through the virtual projection device arranged in the storage compartment of the refrigerator body, so that different operations of a refrigerator user can be facilitated, and the use requirements of the user are met.
Furthermore, when the virtual projection device in the refrigerator provided by the invention projects the virtual control panel, whether a shelter exists on the preset projection path is detected, the virtual control panel is projected under the condition that no shelter exists, and the touch panel is started under the condition that the shelter exists, so that the user experience is improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a virtual projection apparatus in a refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of relative positions of a designated area, a projection plane and a detection plane according to an embodiment of the invention;
fig. 4 is a schematic view of a refrigerator interior projection control flow according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention provides a refrigerator 100 having an internal projection function, as shown in fig. 1, the refrigerator 100 may include; the display device includes a cabinet 110, a virtual projection device 120 disposed inside the cabinet 110, and a door sensing device (not shown in the drawings). The door sensing device is configured to detect a door opening event of the refrigerator 100 and generate a first door opening signal within a specified time period after the refrigerator opens the door; the virtual projection device 120 is configured to be started after a first door opening signal generated by the door body sensing device is acquired, and whether a shielding object exists on a preset projection path is judged; and when no shielding object exists on the preset projection path, projecting the virtual control panel into the designated area based on the preset projection path. The specified time period can be set according to different situations, and the invention is not limited.
According to the refrigerator 100 with the internal projection function provided by the embodiment of the invention, the virtual projection device 120 arranged in the refrigerator body 110 projects the virtual control panel in the designated area, so that the internal function display and the control adjustment of the refrigerator 100 are facilitated, and particularly, when the refrigerator door body is in an open state, the virtual control panel can be projected in the designated area through the virtual projection device 120 arranged in the storage compartment 111 of the refrigerator body 110, so that different operations of a refrigerator user are facilitated, the use requirements of the user are met, and the user experience is improved. In addition, when the user stores food and articles inside the refrigerator 100, the projection route is shielded, so that the projection is not clear and the keys are shielded. Therefore, in the embodiment of the present invention, the virtual projection apparatus 120 projects the virtual control panel into the designated area based on the preset projection path only when it is determined that no shielding object exists on the preset projection path.
In this embodiment, the case body 110 may define a storage compartment 111. The storage compartment 111 may include a refrigerating compartment 112, and the virtual projection device 120 is disposed at a middle position of a top of the refrigerating compartment 112, and a distance from a front end of the box body 110 is within a preset distance range. The predetermined projection path of the virtual projection device 120 may be a projection path within a range from a middle position of the top of the refrigerating compartment 112 to a designated area of the bottom of the refrigerating compartment 112. Optionally, the designated area is located in a relief area of the refrigeration compartment 112, which is provided for the door storage box, in the projection area at the bottom of the refrigeration compartment 112.
Referring to fig. 2, the virtual projection apparatus 120 may include a processor 122 and a projection component 121. The processor 122 is configured to start after acquiring the first door opening signal, and determine whether a shield exists on a preset projection path; the projection module 121 is configured to project a virtual control panel into a designated area of the bottom of the refrigerating compartment 112 based on the preset projection path when the processor 122 determines that no shielding object exists on the preset projection path.
In the embodiment of the present invention, the projection module 121 is preferably a laser projection module 121 composed of RGB three-color laser emitters. In addition, the virtual control panel projected by the projection component 121 may be an operation control panel for selecting relevant information such as an operation mode and an operation temperature of the refrigerator 100 to put in the internal operation parameters of the refrigerator 100 by a user, and may also be an information display panel for presenting information such as a designated image, a picture, and article storage knowledge, and when the virtual control panel projected by the virtual projection device 120 further has a plurality of touch keys to set the regulation and control requirements and the display requirements of different operation scenes of the refrigerator 100, in addition to the above description, the virtual control panel may further have other regulation and control functions on parameters such as an operation mode or a function of the refrigerator 100, and the present invention is not limited.
As described above, the virtual projection apparatus 120 projects the virtual control panel only when it is determined that there is no shielding object on the predetermined projection path. Therefore, in the present embodiment, a distance measuring component may be further added to the virtual projection apparatus 120 to detect whether a shielding object exists on the preset projection path of the virtual projection apparatus 120.
In an alternative embodiment of the present invention, as shown in fig. 2, the virtual projection apparatus 120 may further include: infrared detection component 123. The infrared detection assembly 123 is configured to start and emit an infrared signal after acquiring a first door opening signal generated by the door body sensing device; receiving an infrared reflection signal of the infrared signal after the infrared signal is reflected by a reflector; acquiring a first propagation time from the emission of the infrared signal to the reception of the infrared reflection signal and a first propagation speed of the infrared signal; a first distance between the virtual projection device 120 and the reflector is calculated according to the first propagation time and the first propagation speed, and is transmitted to the processor 122.
The processor 122 is further configured to determine whether the virtual projection apparatus 120 has a shelter on the preset projection path based on the first distance calculated by the infrared detection component 123. Further, the processor 122 is further configured to calculate a first difference value between the first distance calculated by the infrared detection component 123 and the preset distance from the top to the bottom of the refrigerating compartment 112; when the first difference is within the first designated distance range, it is determined that no shielding object exists on the preset projection path by the virtual projection apparatus 120; when the first difference exceeds the first designated distance range, it is determined that the virtual projection apparatus 120 has a shelter on the preset projection path.
In this embodiment, the infrared rays emitted by the infrared detection component 123 are used to detect whether a shelter exists on the preset projection path of the virtual projection apparatus 120. The working principle of infrared rays is as follows: the time of the beam intensity is calculated by using the phase shift generated by the back and forth of the high-frequency modulated infrared ray on the distance to be measured, that is, after the infrared ray is sent out from the infrared detection component 123, and is reflected by the reflecting object and then received, the distance between the virtual projection device 120 and the reflecting object can be quickly calculated according to the time from sending to receiving of the infrared ray and the propagation speed of the infrared ray. The processor 122 compares the distance with a preset distance from the top to the bottom of the refrigerating compartment 112 to determine whether a shelter exists on the preset projection path of the virtual projection apparatus 120. The preset distance from the top to the bottom of the refrigerating chamber 112 may be obtained by directly measuring the internal dimension of the refrigerating chamber 112, and the first specified distance range may be a range of a distance measurement error of the infrared detector, and may be set according to an actual application condition, which is not limited in the present invention.
With continued reference to fig. 2, the virtual projection apparatus 120 may further include a mounting box 124, and the projection module 121, the processor 122, and the infrared detection module 123 of the virtual projection apparatus 120 may be disposed in the mounting box 124. The mounting box 124 can be provided with a transparent box cover, and the projection component 121 and the infrared detection component 123 are arranged in the mounting box 124 in parallel and are located on one side, close to the refrigerator door, of the mounting box 124. The mounting box 124 may be disposed at a middle position of the top of the refrigerating compartment 112 and at a distance within a predetermined distance range from the front end of the box body 110. In this embodiment, the components in the virtual projection apparatus 120 can be integrated together by the mounting box 124, and the positions of the components are reasonably arranged, so that the space occupied by the virtual projection apparatus 120 inside the refrigerator 100 can be greatly reduced. In this embodiment, the projection module 121 is disposed on the top of the refrigerating compartment 112, so that the projection module 121 projects a virtual control panel vertically. The distance between the mounting box 124 and the front end of the box 110 is within a preset distance range, which can be further adjusted according to the size of the refrigerator 100, so that the projection distance is shortest, the projection angle is best, and the shielding effect is small.
For example, assuming that the length of the refrigerating compartment 112 of the refrigerator 100 is M (cm) and the width is W (cm), the center of the mounting box 124 is located at M/2, which provides a better projection position, and the projection shape is not deformed, considering the influence of the spacer rack objects on the projection, the distance X (cm) from the front end of the box 110 (specifically, the outer edge of the top of the refrigerator 100) is X < W/2, and thus the collision with the bottle seat of the refrigerating compartment is prevented.
In another optional embodiment of the present invention, it may also be detected whether there is a shelter on the preset projection path of the virtual projection apparatus 120 by using ultrasonic waves. Optionally, the virtual projection apparatus 120 further includes: an ultrasonic ranging assembly (not shown in the figures). The ultrasonic ranging assembly is configured to start and transmit an ultrasonic signal after acquiring the first door opening signal; receiving a reflected signal of the ultrasonic signal after the ultrasonic signal meets a reflector; acquiring a second propagation time of the ultrasonic signal from emission to reception of the reflected signal and a second propagation speed of the ultrasonic signal; and calculating a second distance between the virtual projection device 120 and the reflector according to the second propagation time and the second propagation speed.
The processor 122 is further configured to determine whether the virtual projection device 120 has an obstruction on the preset projection path based on the second distance calculated by the ultrasonic ranging component. Further, the processor 122 is further configured to calculate a second difference between the second distance calculated by the ultrasonic ranging component and the preset distance from the top to the bottom of the refrigerating compartment 112; when the second difference is within the second designated distance range, it is determined that no shielding object exists on the preset projection path by the virtual projection apparatus 120; when the second difference exceeds the second designated distance range, it is determined that the virtual projection apparatus 120 has a shelter on the preset projection path.
Generally, the propagation speed of the ultrasonic wave in the air is 340m/s, and by recording the time t from the sending of the ultrasonic wave to the sending and receiving of the ultrasonic ranging assembly, the distance(s) from the emitting point to the reflector can be calculated by a time difference ranging method, namely: and s is 340 t/2. The principle of ultrasonic ranging is that the propagation speed of ultrasonic waves in the air is known, the time of the sound waves reflected back when encountering an obstacle after being transmitted is measured, and the actual distance from a transmitting point to the reflector is calculated according to the time difference between transmitting and receiving. It follows that the principles of ultrasonic ranging are the same as those of radar. The formula for ranging is expressed as: l ═ cxt, where L is the measured distance length; c is the propagation speed of the ultrasonic wave in the air; t is the time difference of the measured range propagation (T is half the value of the transmit-to-receive time). In addition, the second specified distance range may be a range of a distance measurement error of the ultrasonic distance meter, and may be set according to a practical application, and the present invention is not limited thereto.
In practical applications, the shielding object on the preset projection path of the virtual projection apparatus 120 may also be detected in other manners, which is not described herein again.
As described above, in the case that there is no shielding object on the predetermined projection path of the virtual projection apparatus 120, in practical applications, when the amount of the stored articles in the refrigerator 100 is large, the shielding object may be generated on the predetermined projection path of the virtual projection apparatus 120, and at this time, the virtual projection apparatus 120 may not be able to effectively and completely project the virtual control panel in the designated area. Therefore, in an alternative embodiment of the present invention, the refrigerating compartment 112 is further provided with a touch panel (not shown in the figures). The touch panel may be disposed in a designated area where the virtual projection device 120 projects the virtual control panel, and is configured to be activated when the virtual projection device 120 determines that a shielding object exists on a preset projection path; the operation of the touch panel by the user is detected, and a first operation instruction corresponding to the operation is generated and provided to the main control board of the refrigerator 100, so that the main control board responds to the first operation instruction. The touch panel in this embodiment may be a capacitive touch key, and in order not to affect the regulation and control of the user on the mode or each function of the refrigerator 100, the touch key may be used when a shield exists on the preset projection path of the virtual projection apparatus 120, so as to meet the use requirement of the user on the refrigerator.
Further, in the activated state of the touch panel, the shielding object on the preset projection path of the virtual projection apparatus 120 may be detected in real time or at a certain time interval, so that the projection of the virtual control panel is performed when the projection condition is met. That is, the door sensing device in this embodiment is further configured to detect the door opening state of the refrigerator 100 when the touch panel is in the activated state, and send the second door opening signal to the virtual projection device 120 when the refrigerator 100 keeps the door opening state. The virtual projection device 120 is further configured to determine whether a shielding object still exists on a preset projection path at a preset time interval after receiving a second door opening signal sent by the door body sensing device; and when no shielding object exists on the preset projection path, starting the virtual control panel, and projecting the virtual control panel into the designated area. In addition, the touch panel is further configured to continue to maintain the start-up state when the virtual projection device 120 determines that the shielding object still exists on the preset projection path; or shut down when the virtual projection device 120 is turned on.
In the embodiment of the present invention, by simultaneously providing the virtual projection apparatus 120 and the touch panel, when the door of the refrigerator 100 is opened, no shielding object exists on the preset projection path of the virtual projection apparatus 120 to project the virtual control panel, and when the shielding object exists, the touch panel is started to work, so as to meet the use requirement of the user on the refrigerator 100.
In practical applications, both the touch panel and the virtual control panel projected by the virtual projection device 120 can control the refrigerator 100 based on user operations. Optionally, the virtual projection device 120 is further configured to recognize an operation of the virtual control panel by the user, and generate a second operation instruction corresponding to the operation to be provided to the main control panel of the refrigerator 100, so that the main control panel responds to the second operation instruction. As described above, the infrared detection component 123 can be used to detect the shielding object on the preset projection path of the virtual projection apparatus 120, and further, the infrared detection component 123 can also be used to detect the touch panel of the virtual control panel by the user of the refrigerator 100. That is, the infrared detection component 123 may detect an operation of a user in a designated area, and the processor 122 may further identify the operation of the user on the virtual control panel according to a detection result of the infrared detection component 123, and generate an operation instruction corresponding to the operation, which is provided to the main control panel of the refrigerator 100, so that the main control panel may respond to the operation instruction. That is, assuming that the user touches the virtual control panel, the infrared detection component 123 can detect the intensity of the signal, and further capture the related operations of the user in the designated area.
As can be seen from fig. 1 and 2, the designated area of the projection assembly 121 projecting the virtual control panel to the storage compartment 111 is located at the bottom of the refrigeration compartment 112; the projection assembly 121 and the infrared detection assembly 123 respectively form a projection surface and a detection surface in a designated area, and the projection surface and the detection surface are at least partially overlapped; the projection assembly 121 is further configured to project a virtual control panel in an overlapping area of the projection plane and the detection plane. Optionally, the designated area of the projection module 121 projecting the virtual control panel to the storage compartment 111 is preferentially located in the projection area of the refrigerator compartment 112 at the bottom of the refrigerator compartment 112, which is a relief area of the door storage box, so that the projection distance of the virtual projection device 120 is shortest, the projection angle is best, and the shielding effect is small.
In practical application, since the door body of the refrigerator 100 is provided with the storage box for storing articles, the size of the storage plate arranged in the refrigerating chamber 112 is smaller than the internal size of the refrigerating chamber 112, and the refrigerating chamber 112 is provided with a yielding area for the door body storage box, so that the door body storage box is arranged in the yielding area of the refrigerating chamber 112 after the door body of the refrigerator 100 is closed and cannot touch the storage plate in the refrigerating chamber 112. In the scheme provided by this embodiment, the virtual projection device 120 is disposed at the middle position of the top of the refrigerating compartment 112, and the designated area of the projection component 121 projecting the virtual control panel to the storage compartment 111 is preferentially located in the projection area of the refrigerating compartment 112 at the bottom of the refrigerating compartment 112, which is the escape area of the door storage box for the refrigerating compartment 112, so that not only can the projection component 121 completely project the virtual control panel at the bottom of the refrigerating compartment 112, but also the infrared detection component 123 can effectively detect the operation of a user in the designated area, thereby effectively reducing or even avoiding the shielding influence of the shelf in the refrigerating compartment 112 on the projection process of the virtual control panel or the process of detecting the operation of the user.
As mentioned above, the virtual projector 120 may be disposed on the top of the refrigerating compartment 112 of the box 110, and preferably, the mounting box 124 may be vertically mounted on the top of the refrigerating compartment 112, such that the bottom surface of the mounting box 124 is disposed parallel to the top surface of the refrigerating compartment 112. Of course, in practical applications, the bottom surface of the mounting box 124 and the top surface of the refrigerating compartment 112 are disposed in an inclined manner, and the inclined angle may be smaller than a certain included angle, and the included angle may be set according to practical requirements, which is not limited in the present invention.
Because the projection module projection ratio (α) is the projection distance (λ)/the picture width (w), where α has a value range of 1.5-1.9, if the height of the refrigerating compartment is Hcm, and H has a value range of 70cm-90cm, the width range of the picture projected by the projection module is 36cm-60cm, and the current refrigerator 100 can meet the requirement of the module on the size of the picture projected by the module.
As shown in fig. 3, the designated area at the bottom of the refrigerating compartment 112 is area 1, the projection surface of the projection unit 121 is area 2, and the detection surface of the infrared detection unit 123 is area 3. Wherein both region 2 and region 3 belong to a part within region 1, and region 2 and region 3 have an overlapping region, region 4. The virtual control panel projected by the projection component 121 is located in the area 4. Assume that projection assembly 121 projects length L vertically1(cm) width W1(cm) virtual control panel, then, L1、W1Are smaller than the maximum length and the width of the projection area of the letting area of the door body storage box arranged in the refrigerating chamber 112 at the bottom of the refrigerating chamber 112.
As can be seen from fig. 2, in the embodiment of the present invention, the projection module 121 and the infrared detection module 123 may be arranged in the mounting box 124 in parallel, and when the arrangement is specifically performed, the interval between the projection module 121 and the infrared detection module 123 may be controlled to be smaller than a certain distance, so that the projection plane of the projection module 121 and the detection plane of the infrared detection module 123 may overlap to the maximum extent, and the virtual control panel falls within the overlapping area of the projection plane and the detection plane, so that the operation of the virtual control panel by the user may be effectively detected through detection of the infrared detection module 123 while the projection is implemented.
In the above embodiment, the virtual projection apparatus 120 may further adopt an ultrasonic ranging component to detect the shielding object, so that an infrared sensing component may be added in the virtual projection apparatus 120, and the projection component 121 adopts a laser projection with an infrared emission function, so as to complete the detection of the operation of the user on the virtual control panel while realizing the projection of the virtual control panel.
Fig. 4 is a schematic diagram of a refrigerator interior projection control flow according to an embodiment of the present invention, and as can be seen from fig. 4, the refrigerator interior projection control flow according to the embodiment of the present invention may include:
s402, detecting a door opening event of the refrigerator by a door body sensing device, and generating a first door opening signal in a specified time period after the refrigerator is opened;
s404, the virtual projection device detects whether a shelter exists on a preset projection path; if yes, go to step S406, otherwise go to step S410; specifically, the shielding object on the preset projection path of the virtual projection device can be detected through an infrared detection component, an ultrasonic ranging component or other types of ranging components in the virtual projection device;
s406, starting the touch panel, and keeping the virtual projection device in a closed state;
s408, the door body sensing device continuously detects the door opening state of the refrigerator when the touch panel is in the starting state, and the virtual projection device detects whether a shield exists in a preset projection path at preset time intervals (such as 1min) during the door opening period of the refrigerator; if not, executing step S410, if yes, executing step S412;
s410, the virtual projection device projects a virtual control panel, and the touch panel is closed;
s412, the touch panel keeps in a starting state, and the virtual projection device keeps in closing;
and S414, continuously detecting the door body sensing device and the door opening state of the refrigerator, if the virtual projection device detects whether a shielding object exists in the preset projection path of the refrigerator at a preset time interval in the door opening state of the refrigerator, if so, executing the step S412, and if not, executing the step S410.
The embodiment of the invention provides a refrigerator with an internal projection function, which is convenient for internal function display and control adjustment of the refrigerator by projecting a virtual projection device on a virtual control panel in a storage chamber of the refrigerator, and particularly can project the virtual control panel in a designated area through the virtual projection device arranged in the storage chamber of a refrigerator body under the condition that a refrigerator door body is opened so as to be convenient for different operations of a refrigerator user and meet the use requirements of the user.
Further, when the virtual projection apparatus in the refrigerator provided by the embodiment of the invention projects the virtual control panel, it is first detected whether a shielding object exists on the preset projection path, and the virtual control panel is projected without the shielding object, and the touch panel is started with the shielding object, so as to improve the user experience. In addition, according to the refrigerator provided by the embodiment of the invention, the virtual projection device is arranged in the middle of the top of the storage compartment of the refrigerator body, so that the projection distance of the virtual projection device is shortest, the projection angle is best, and the shielding influence is small.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A refrigerator having an interior projection function, the refrigerator comprising; the door body sensing device comprises a box body, a virtual projection device and a door body sensing device, wherein the virtual projection device and the door body sensing device are arranged in the box body; wherein the content of the first and second substances,
the door body sensing device is configured to detect a door opening event of the refrigerator and generate a first door opening signal within a specified time period after the refrigerator is opened;
the virtual projection device is configured to be started after the first door opening signal generated by the door body sensing device is acquired, and whether a shielding object exists on a preset projection path is judged;
and when judging that no shielding object exists on the preset projection path, projecting a virtual control panel to the designated area based on the preset projection path.
2. The refrigerator according to claim 1, wherein the box body defines a storage compartment, the storage compartment comprises a refrigerating compartment, the virtual projection device is arranged in the middle of the top of the refrigerating compartment, and the distance between the virtual projection device and the front end of the box body is within a preset distance range;
the virtual projection device includes:
the processor is configured to start after the first door opening signal is acquired, and judge whether a shield exists on a preset projection path;
a projection component configured to project a virtual control panel into a designated area of the bottom of the refrigerated compartment based on the preset projection path when the processor determines that no shelter is present on the preset projection path;
the designated area is located in a projection area at the bottom of the refrigerating chamber in a position-giving area of the refrigerating chamber, which is set for the door storage box.
3. The refrigerator of claim 2, wherein the virtual projection device further comprises: an infrared detection assembly;
the infrared detection assembly is configured to be started and emit an infrared signal after the first door opening signal generated by the door body sensing device is acquired;
receiving an infrared reflection signal of the infrared signal after being reflected by a reflector;
acquiring a first propagation time from the emission of the infrared signal to the reception of the infrared reflection signal, and a first propagation speed of the infrared signal;
calculating a first distance between the virtual projection device and the reflector according to the first propagation time and the first propagation speed, and transmitting the first distance to the processor;
the processor is further configured to determine whether a shelter exists on the virtual projection device on the preset projection path based on the first distance calculated by the infrared detection component.
4. The refrigerator according to claim 3,
the processor is further configured to calculate a first difference value between the first distance calculated by the infrared detection component and a preset distance from the top to the bottom of the refrigeration compartment;
when the first difference value is within a first specified distance range, judging that no shielding object exists on the preset projection path of the virtual projection device;
and when the first difference exceeds the first specified distance range, judging that a shield exists on the preset projection path of the virtual projection device.
5. The refrigerator of claim 2, wherein the virtual projection device further comprises: an ultrasonic ranging assembly;
the ultrasonic ranging assembly is configured to start and transmit an ultrasonic signal after acquiring the first door opening signal;
receiving a reflected signal of the ultrasonic signal after encountering a reflector;
acquiring a second propagation time of the ultrasonic signal from emission to reception of the reflected signal and a second propagation speed of the ultrasonic signal;
calculating a second distance between the virtual projection device and the reflector according to the second propagation time and the second propagation speed;
the processor is further configured to determine whether an obstruction exists on the preset projection path of the virtual projection device based on the second distance calculated by the ultrasonic ranging component.
6. The refrigerator according to claim 5,
the processor is further configured to calculate a second difference between the second distance calculated by the ultrasonic ranging component and a preset distance from the top to the bottom of the refrigeration compartment;
when the second difference value is within a second specified distance range, judging that no shielding object exists on the preset projection path of the virtual projection device;
and when the second difference exceeds the second specified distance range, judging that a shield exists on the preset projection path of the virtual projection device.
7. The refrigerator of claim 2, wherein the cold storage compartment is further provided with a touch panel;
the touch panel is configured to be started when the virtual projection device judges that a shelter exists on the preset projection path;
the method comprises the steps of detecting operation of a user on the touch panel, generating a first operation instruction corresponding to the operation and providing the first operation instruction to a main control panel of the refrigerator, and enabling the main control panel to respond to the first operation instruction.
8. The refrigerator according to claim 7,
the door body sensing device is also configured to detect the door opening state of the refrigerator when the touch panel is in a starting state, and send a second door opening signal to the virtual projection device when the refrigerator keeps the door opening state;
the virtual projection device is also configured to judge whether a shielding object still exists on the preset projection path at a preset time interval after receiving a second door opening signal sent by the door body sensing device;
and when no shielding object exists on the preset projection path, starting the virtual control panel, and projecting the virtual control panel into the designated area.
9. The refrigerator of claim 8, wherein,
the touch panel is further configured to continue to keep a starting state when the virtual projection device judges that the shielding object still exists on the preset projection path of the virtual projection device; or
And when the virtual projection device is started, the virtual projection device is closed.
10. The refrigerator according to claim 1,
the virtual projection device is further configured to recognize an operation of a user on the virtual control panel and generate a second operation instruction corresponding to the operation, which is provided to the main control panel of the refrigerator, so that the main control panel responds to the second operation instruction.
CN201910907461.XA 2019-09-24 2019-09-24 Refrigerator with internal projection function Pending CN112629108A (en)

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