CN112629104A - Refrigerator interior projection shielding object detection method and refrigerator - Google Patents

Refrigerator interior projection shielding object detection method and refrigerator Download PDF

Info

Publication number
CN112629104A
CN112629104A CN201910906628.0A CN201910906628A CN112629104A CN 112629104 A CN112629104 A CN 112629104A CN 201910906628 A CN201910906628 A CN 201910906628A CN 112629104 A CN112629104 A CN 112629104A
Authority
CN
China
Prior art keywords
signal
projection
refrigerator
virtual
preset
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
CN201910906628.0A
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 CN201910906628.0A priority Critical patent/CN112629104A/en
Publication of CN112629104A publication Critical patent/CN112629104A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention provides a method for detecting a projection shield in a refrigerator and the refrigerator, wherein the refrigerator comprises the following steps: the box body defines a storage chamber; the virtual projection module is arranged in the storage room; the method comprises the following steps: a shielding object judging step: emitting an optical detection signal after the refrigerator is opened, and judging whether a shield exists on a preset projection path of the virtual projection module based on a reflection signal corresponding to the optical detection signal; a projection step: and if the shield does not exist on the preset projection path, projecting the virtual touch panel to the specified area of the storage compartment through the virtual projection module based on the preset projection path. The projection scheme is set according to the scheme provided by the invention aiming at the condition of existence of the shielding object, so that the control requirement of a user on the refrigerator can be met.

Description

Refrigerator interior projection shielding object detection method and refrigerator
Technical Field
The invention relates to the technical field of refrigerator projection, in particular to a refrigerator and a method for detecting a projection shielding object in the refrigerator.
Background
At present, with the intellectualization of the refrigerator, a projection scheme applied to the refrigerator has been proposed, the original touch key is mainly replaced by projection outside the refrigerator, and the projection inside the refrigerator is less, mainly because the difficulty of using the projection technology inside the refrigerator is high, and more factors need to be considered. The problem that the shield of the projection area is a common problem in applying the projection technology in the refrigerator, and the problem has a great influence on whether the projection virtual key can be smoothly projected to the designated area, so that the detection of the projection shield is a problem to be solved at present.
Disclosure of Invention
The invention aims to provide a method for detecting a projection shielding object in a refrigerator.
A further object of the invention is to provide different projection solutions inside the refrigerator, respectively, with or without a shield.
Particularly, the invention provides a method for detecting a projection shield in a refrigerator, which comprises the following steps: the box body defines a storage chamber; the virtual projection module is arranged in the storage room;
the method comprises the following steps:
a shielding object judging step: emitting an optical detection signal after the refrigerator is opened, and judging whether a shield exists on a preset projection path of the virtual projection module based on a reflection signal corresponding to the optical detection signal;
a projection step: and if the shield does not exist on the preset projection path, projecting the virtual touch panel to the specified area of the storage compartment through the virtual projection module based on the preset projection path.
Optionally, the refrigerator further comprises a door body sensing device;
the shielding object judging step comprises the following steps:
and a door opening detection sub-step: detecting a door opening event of the refrigerator through a door body sensing device, and sending a door opening signal within a preset time range after the refrigerator is opened;
a signal transmission sub-step: acquiring a door opening signal, and transmitting an optical detection signal based on a preset projection path of the door opening signal through a virtual projection module;
a signal receiving sub-step: acquiring a reflected signal of the optical detection signal reflected by any reflector through a virtual projection module;
a judgment substep: and judging whether the shield exists on the preset projection path or not based on the signal intensity of the reflected signal.
Optionally, the signal receiving substep is further followed by:
and (3) signal screening: recording the reflection signals acquired by the virtual projection module in a preset time period, and generating a reflection signal data list; wherein the list of reflected signal data comprises: each reflected signal and its acquisition time and corresponding signal strength;
and acquiring a plurality of continuous reflection signal data based on the reflection signal data list, and arranging the plurality of reflection signal data from small to large according to the signal intensity.
Optionally, the determining substep comprises:
selecting a to-be-judged reflection signal in a designated arrangement serial number from the arranged multiple reflection signal data, and acquiring the signal intensity of the to-be-judged reflection signal;
and judging whether a shield exists on the preset projection path or not based on the signal intensity of the reflected signal to be judged.
Optionally, the determining substep comprises:
judging whether the signal intensity of the reflected signal is within a preset threshold range;
if the signal intensity of the reflected signal is within the preset threshold range, judging that no shielding object exists on a preset projection path of the virtual projection module;
and if the signal intensity of the reflected signal is out of the preset threshold range, continuing to execute the signal receiving substep, and judging that a shield exists on the preset projection path of the virtual projection module when detecting that the signal intensity of the specified time period is always out of the preset threshold range.
Optionally, the storage compartment comprises a refrigeration compartment; the virtual projection module is arranged at the top of the refrigerating chamber;
the projection step comprises:
if the shield does not exist on the preset projection path of the virtual projection module, projecting a virtual touch panel to a specified area at the bottom of the refrigerating chamber through the virtual projection module based 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.
Optionally, the projecting step further comprises:
if the shield exists on the preset projection path of the virtual projection module, the virtual projection module projects preset image information to the specified area of the storage chamber based on the preset projection path.
Optionally, the refrigerator further comprises a voice broadcasting device;
the projection step further comprises the following steps:
voice prompt step: if the shield exists on the preset projection path of the virtual projection module, the prompt information of the shield on the preset projection path of the virtual projection module is played through the voice broadcasting device.
Optionally, the voice prompting step further includes:
and if the preset projection path is judged to have no shielding object, stopping playing the prompt message and executing the projection step.
According to another aspect of the present invention, there is also provided a refrigerator including:
the box body defines a storage chamber;
the virtual projection module is arranged in the storage room;
the projection controller comprises a memory and a processor, wherein the memory of the memory is provided with a program, and the program is used for realizing the method for detecting the projection shielding object in the refrigerator according to any one of the above items when being executed by the processor.
The invention provides a refrigerator interior projection shielding object detection method and a refrigerator, wherein in the refrigerator interior projection shielding object detection method provided by the invention, an optical detection signal is emitted after the door of the refrigerator is opened, whether a shielding object exists on a preset projection path of a virtual projection module is judged based on a reflection signal of the optical detection signal, and when the condition that no shielding object exists on the preset projection path of the virtual projection module is detected, a virtual touch panel can be projected for a user to operate, and the operation mode or the operation parameters of the refrigerator are adjusted; when the shield is detected in the preset projection path of the virtual projection module, the virtual projection module suspends projecting the virtual key and changes to projecting the preset image information. The projection scheme is set according to the method provided by the invention respectively aiming at the condition of existence of the shielding object, and the control requirement of a user on the refrigerator can be met. Furthermore, the virtual touch panel can be reminded when a shielding object is detected, so that the virtual projection module smoothly projects the virtual touch panel to a designated area, and 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 diagram of a virtual projection module 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 the relative positions of the mounting box and the refrigeration compartment according to an embodiment of the invention;
fig. 5 is a schematic view of a refrigerator according to another embodiment of the present invention;
FIG. 6 is a schematic flow chart of a method for detecting projected shielding inside a refrigerator according to one embodiment of the present invention;
FIG. 7 is a schematic flow chart of a method for detecting a projected shielding object inside a refrigerator according to another embodiment of the present invention;
fig. 8 is a flow chart of a processing method when a shelter is projected inside a refrigerator according to one embodiment of the invention.
Detailed Description
Fig. 1 is a schematic structural diagram of a refrigerator 100 according to an embodiment of the present invention, and referring to fig. 1, the refrigerator 100 provided in this embodiment may include: a case 110 defining a storage compartment 111; the virtual projection module 120. As shown in fig. 2, the virtual projection module 120 may include: a projection assembly 121 configured to project a virtual control panel within a designated area of the storage compartment 111; a sensing component 122 configured to detect user operation in a designated area; and a processor 123 configured to recognize an operation of the virtual control panel by the user according to the detection result of the sensing assembly 122, and generate an operation instruction corresponding to the operation to be provided to the main control panel of the refrigerator 100 for the main control panel to respond to the operation instruction.
The refrigerator 100 that this embodiment provided, through utilizing projection subassembly 121 to project virtual control panel in the storing compartment 111 of refrigerator 100, be convenient for the inside function display of refrigerator 100 and control regulation, especially under the state that the refrigerator door body is in opening, can throw virtual control panel in order to make things convenient for the refrigerator 100 user to carry out different operations through the inside virtual projection module 120 that sets up of box 110 storing compartment 111 in the specified area, satisfy user's user demand, improve user experience.
The processor 123 in this embodiment is mainly used as a core data processing component of the virtual projection module 120, and is in communication connection with the projection component 121 and the sensing component 122 to implement projection control of the projection component 121 and detection control of the sensing component 122, and determine whether the virtual control panel is operated by a user according to data detected by the sensing component 122, so as to send a corresponding operation instruction to the main control panel of the refrigerator 100. The virtual control panel projected by the projection component 121 may be an operation control panel (e.g., a virtual touch panel) for selecting relevant information such as an article type to be put in according to operation parameters such as an operation mode and an operation temperature inside the refrigerator by a user, and may also be an information display panel (e.g., preset image information) for presenting information such as a designated image, a picture, article storage knowledge, and the like, and the virtual control panel projected by the projection component 121 may further have a plurality of touch keys to set the regulation and control requirements and display requirements of different operation scenes of the refrigerator.
In an embodiment of the present invention, the storage compartment 111 may include a refrigerating compartment 112; the projection assembly 121 and the sensing assembly 122 are disposed at the top of the refrigerating compartment 112. As can be seen from fig. 1 and 2, the virtual projection module 120 may further include a mounting box 124, and the projection element 121, the sensing element 122 and the processor 123 of the virtual projection module 120 may be disposed in the mounting box 124. The mounting box 124 may be provided with a transparent box cover, and the projection component 121 and the sensing component 122 are arranged in the mounting box 124 in parallel and located on one side of the mounting box 124 close to the refrigerator door. 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, each component in the virtual projection module 120 can be integrated together through the mounting box 124, the position of each component is reasonably arranged, and the space occupied by the virtual projection module 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 L (cm) and the width is W (cm), the center of the mounting box 124 is located at L/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 M (cm) from the front end of the box 110 (specifically, the outer edge of the top of the refrigerator 100) is considered, and M < W/2, which is to prevent the bottle seat of the refrigerating compartment from colliding.
As can be seen from fig. 1 and 3, 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 sensing assembly 122 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 module 120 is shortest, the projection angle is best, and the shielding effect is small.
In practical application, because the door body of the refrigerator 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 the yielding area arranged on 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 is closed and cannot touch the storage plate in the refrigerating chamber 112. In the solution provided in this embodiment, the virtual projection module 120 is disposed at the middle position of the top of the refrigerating compartment 112, and 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 refrigerating compartment 112 at the bottom of the refrigerating compartment 112 for the storage box of the door, so that not only the projection module 121 can completely project the virtual control panel at the bottom of the refrigerating compartment 112, but also the sensing module 122 can effectively detect the operation of the user in the designated area, thereby effectively reducing or even avoiding the shielding effect 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 shown in FIG. 3, the designated area at the bottom of the refrigerating compartment 112 is area 1, the projection surface of the projection assembly 121 is area 2, and the detection surface of the sensing assembly 122 isIs region 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 sensing module 122 are arranged in the mounting box 124 in parallel, and when the arrangement is specifically performed, the interval between the projection module 121 and the sensing module 122 can 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 sensing module 122 can be overlapped to the maximum extent, and the virtual control panel falls in the overlapping area of the projection plane and the detection plane, so that the operation of the virtual control panel by the user can be effectively detected through the sensing module 122 while the projection is implemented.
In an alternative embodiment of the present invention, the projection module 121 shown in fig. 2 may be configured to project a virtual control panel to a designated area and emit an infrared signal; and the sensing component 122 can be configured to detect the operation of the user in the designated area based on the infrared signal. Specifically, the projection module 121 in this embodiment may be a laser projection module composed of RGB three-color laser emitters, which emits imaging laser and projects a virtual control panel in a designated area. The virtual control panel may present information such as designated images and pictures, and may further include at least one virtual control key, based on which the operation parameters, the function modes, and the like of the refrigerator 100 may be set and selected. In this embodiment, the projection component 121 may also emit an infrared signal during the process of projecting the virtual control panel to the designated area, and assuming that the user touches the virtual control panel, the sensing component 122 may detect a reflected signal of the signal, so as to capture the related operations of the user in the designated area.
In another alternative embodiment of the present invention, the projection assembly 121 may also be configured to project a virtual control panel, which may be a laser projection module, to the designated area; the sensing component 122 may be configured to emit an infrared signal to the designated area and detect a user's operation within the designated area based on the infrared signal. In this embodiment, the sensing component 122 is used to send and receive infrared signals, and cooperate with the projection component 121 to detect the operation of the user in the designated area, so as to identify the operation of the user on the virtual control panel through the processor 123, and generate a corresponding operation instruction for the main control panel of the refrigerator 100 to respond. In this embodiment, the sensing component 122 is internally provided with an infrared emitting module and an infrared receiving module separately, so as to realize the emitting and receiving functions of the infrared signal.
As mentioned above, the virtual projection module 120 may be disposed on the top of the refrigerating compartment 112 of the box body 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.
In an alternative embodiment of the present invention, as shown in fig. 4, a receiving portion 113 is provided at the front end of the top of the refrigerating compartment 112, and the mounting box 124 can be received in the receiving portion 113. Further, 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 actual requirements, which is not limited in the present invention. That is to say, in the present embodiment, a groove process may be adopted at the top of the refrigerating compartment 112 of the refrigerator 100, and the mounting box 124 may be disposed at the top of the refrigerating compartment 112 in a half-embedded manner, and is disposed obliquely with respect to the top surface of the refrigerating compartment 112, so as to further reduce the occupied space of the mounting box 124 for the refrigerating compartment 112, and make the mounting box 124 more easily integrated in the refrigerating compartment 112.
Because the projection ratio (α) of the virtual projection module is the projection distance (λ)/the picture width (w), where the range of α is 1.5-1.9, if the height of the refrigerating chamber is Hcm, and the range of H is 70cm-90cm, the range of the width of the picture projected by the virtual projection module is 36cm-60cm, and the current refrigerator 100 can meet the requirement of the module for projecting the picture size.
In an optional embodiment of the present invention, the refrigerator 100 may further include a door sensing device (not shown in the drawings) configured to detect a door opening event of the refrigerator 100 and generate a door opening signal; and, the projection component 121 is further configured to start after acquiring the door opening signal, so as to project the virtual control panel into the designated area of the storage compartment 111. In this embodiment, the door sensing device is arranged, the door opening signal is generated only when the door opening of the refrigerator 100 is detected, so that the projection assembly 121 projects the virtual control panel when acquiring the door opening signal, and the projection of the virtual control panel to the designated area can be automatically stopped after the door of the refrigerator 100 is closed, so as to further reduce energy consumption and save energy.
Optionally, the refrigerator 100 may further include a voice broadcasting device (not shown in the figure) in communication with the virtual projection module 120, and configured to broadcast a preset voice prompt message, such as a touch button prompt message of a user, a prompt message indicating success or failure of adjusting the refrigerator operation state parameter, or other prompt messages.
According to the refrigerator 100 provided by the embodiment of the invention, the projection assembly 121 is used for projecting the virtual control panel in the storage compartment 111 of the refrigerator 100, so that the internal function display and control adjustment of the refrigerator 100 are facilitated, and particularly, when a refrigerator door is in an opened state, the virtual control panel can be projected in a designated area through the virtual projection module 120 arranged in the storage compartment 111 of the refrigerator body 110, so that different operations of a user of the refrigerator 100 are facilitated, the use requirements of the user are met, and the user experience is improved. Further, in the refrigerator 100 according to the embodiment of the present invention, the virtual projection module 120 is disposed in the middle of the top of the storage compartment 111 of the refrigerator body 110, so that the projection distance of the virtual projection module 120 is shortest, the projection angle is best, and the shielding effect is small. Moreover, by additionally arranging the door sensing device, the projection assembly 121 projects the virtual control panel when acquiring the door opening signal, and the projection of the virtual control panel to the designated area can be automatically stopped after the refrigerator 100 is closed, so that the energy consumption is further reduced, and the energy is saved.
In an alternative embodiment of the present invention, as shown in fig. 5, a projection controller 140 may be further disposed in the refrigerator 100, and the projection controller 140 may include a memory and a processor, where the memory stores a program, and the program is executed by the processor to implement the method for detecting a projected shielding object inside a refrigerator according to any one of the following embodiments of the present invention. The projection controller 140 in this embodiment may be integrated with the processor 123 in the virtual projection module mentioned in the above embodiments, or may be a separately configured controller, which is not limited in the present invention.
Fig. 6 is a schematic flow chart of a method for detecting a projected shielding object inside a refrigerator according to an embodiment of the present invention, and as can be seen from fig. 6, the method for detecting a projected shielding object inside a refrigerator according to an embodiment of the present invention may include:
s602, a shielding object judging step: and emitting an optical detection signal after the refrigerator is opened, and judging whether a shield exists on a preset projection path of the virtual projection module 120 based on a reflection signal corresponding to the optical detection signal.
As mentioned above, a door sensing device may be disposed in the refrigerator, and is in communication connection with the virtual projection module 120, and optionally, the step S602 may include:
and a door opening detection sub-step: detecting a door opening event of the refrigerator through a door body sensing device, and sending a door opening signal within a preset time range after the refrigerator is opened; the preset time range may be set according to a setting environment of the refrigerator, such as 3 seconds, 5 seconds, and the like, which is not limited in the present invention.
A signal transmission sub-step: acquire the door opening signal and emit a light detection signal based on its preset projection path through the virtual projection module 120. In the above embodiment, the virtual projection module 120 may emit an infrared signal while projecting, and therefore, after the door opening signal is obtained in the foregoing step signal emission substep, the light detection signal emitted by the virtual projection module 120 may be an infrared signal.
A signal receiving sub-step: the virtual projection module 120 obtains a reflection signal of the optical detection signal reflected by any reflector.
A judgment substep: and judging whether the shield exists on the preset projection path or not based on the signal intensity of the reflected signal.
In this embodiment, the virtual projection module 120 emits the infrared signal after a certain time after the door of the refrigerator is opened, and then determines whether a shield exists on the preset projection path of the virtual projection module 120 based on the intensity of the reflected signal of the infrared signal. In practical application, in the process of receiving the reflected signal of the infrared signal, the intensity of the received reflected signal can be judged by utilizing the principle of an energy reflection method. The reflection energy method is to control the light emitting element to emit a light detection signal (usually infrared ray) to the target object by the emission control circuit, and then to transmit the light detection signal back to the virtual projection module 120 after being reflected by any object, and further to determine whether there is a shielding object by the intensity P of the reflection signal received by the photoelectric converter. The predetermined projection path of the virtual projection module 120 may be a projection path from the top to the bottom of the refrigerator compartment.
Optionally, when the determining substep is executed, the method may include: judging whether the signal intensity of the reflected signal is within a preset threshold range; if the signal intensity of the reflected signal is within the preset threshold range, it is determined that no shielding object exists on the preset projection path of the virtual projection module 120; if the signal intensity of the reflected signal is outside the preset threshold range, the sub-step of receiving the signal is continuously executed, and if the signal intensity of the specified time period is detected to be always outside the preset threshold range, it is determined that a shelter exists on the preset projection path of the virtual projection module 120.
That is, after obtaining the signal intensity P of the reflected signal, the processor in the virtual projection module 120 may compare the signal intensity P with a preset threshold range H, and when P exceeds the threshold range H and is not within the threshold range H for a continuous period of time (for example, 5s), it is determined that a shielding object exists in the preset projection path of the virtual projection module 120. The preset threshold range H may be set based on the signal strength measured under normal conditions when the finger touches the virtual key.
In practical applications, there may be abnormal fluctuation when collecting the data related to the reflected signal, so that the virtual projection module 120 is continuously turned on and off. Therefore, optionally, after the sub-step of receiving the signal, the method may further include:
and (3) signal screening: recording the reflection signal acquired by the virtual projection module 120 in a preset time period, and generating a reflection signal data list; wherein the list of reflected signal data comprises: each reflected signal and its acquisition time and corresponding signal strength; and acquiring a plurality of continuous reflection signal data based on the reflection signal data list, and arranging the plurality of reflection signal data from small to large according to the signal intensity.
Thereafter, a decision substep can be performed, namely: selecting a to-be-judged reflection signal in a designated arrangement serial number from the arranged multiple reflection signal data, and acquiring the signal intensity of the to-be-judged reflection signal; and judging whether a shield exists on the preset projection path or not based on the signal intensity of the reflected signal to be judged. Similarly, whether the shielding object exists on the preset projection path of the virtual projection module 120 may be determined by determining that the signal intensity of the second reflection signal is within or outside the preset threshold based on the comparison with the preset threshold. Further, when the signal data is subsequently selected from the list of reflected signal data, the signal data may be sequentially shifted backward by one bit based on the previous selection. For example, the signal data of 1 st to 10 th in the list is selected for the first time, the signal data of 2 to 11 th in the list is selected for the second time, and so on.
For example, first, the time may be counted from the time when the refrigerator is opened, and the reflection signal corresponding to the light detection signal received by the virtual projection module 120 is recorded and processed once every 100ms as a preset period, and a reflection signal data list is generated. The recording time and the calculated signal intensity of each reflected signal may be recorded in chronological order in the reflected signal data list.
Secondly, continuous reflection signal data are selected from the reflection signal data list, and in practical application, after the time is counted from the door opening time of the refrigerator, the data obtained in the previous 9 times can not be recorded, namely, the door is opened within 1s, and the virtual projection module 120 cannot project no matter whether a shielding object exists in the refrigerator or not. After 1s, selecting the reflected signal data recorded from the previous 10 times in the reflected signal data list, namely selecting data 1 to data 10 in table 1, arranging the data 1 to data 10 according to the signal intensity from small to large (see table 2), then taking the signal arranged at the 5 th (namely data 10) as the reflected signal to be judged, and comparing the signal intensity corresponding to the reflected signal with a preset threshold value. TABLE 1
TABLE 1
Figure BDA0002213462940000101
TABLE 2
Figure BDA0002213462940000102
TABLE 3
Figure BDA0002213462940000103
When the signal judgment is performed again, data 2 to data 11 may be selected from the reflected signal data list, and sorting is performed again according to the signal intensity (see table 3), and the signal sorted 5 (i.e., data 7) is continuously selected as the signal to be judged and compared with the preset threshold. The method provided by the embodiment can avoid the problem that the projection equipment is continuously switched on and off due to the fact that the acquired individual data are larger or smaller.
S604, a projection step: if it is determined that no shielding object exists on the preset projection path, the virtual touch panel is projected to the designated area of the storage compartment through the virtual projection module 120 based on the preset projection path. The virtual touch panel may be an operation control panel for a user to select related information such as an operation mode and an operation temperature of the refrigerator internal operation parameters. Optionally, if it is determined that no shielding object exists on the preset projection path of the virtual projection module 120, projecting a virtual touch panel to a designated area at the bottom of the cold storage compartment through the virtual projection module 120 based on the preset projection path; the designated area is located in a projection area at the bottom of the refrigerating chamber 112 of a letting area of the refrigerating chamber, which is set for the door body storage box.
In this embodiment, the virtual projection module 120 may be disposed at the middle position of the top of the refrigeration compartment, and the distance from the front end of the refrigeration compartment is within the preset distance range, so that the projection distance is shortest, the projection angle is best, and the shielding effect is small. In practical applications, the projection component in the virtual projection module 120 may emit an infrared signal while projecting the virtual control panel, or an infrared signal emitting device is separately disposed in the virtual projection module 120 to emit an infrared signal, which is not limited in the present invention.
In addition, the designated area of the virtual projection module 120 projecting the virtual control panel to the storage compartment 111 is preferably located in the projection area of the door storage box at the bottom of the refrigeration compartment 112, which is the escape area of the refrigeration compartment 112, so that not only can the virtual projection module 120 completely project the virtual control panel at the bottom of the refrigeration compartment 112, but also the virtual projection module 120 can effectively detect the operation of a user in the designated area, thereby effectively reducing or even avoiding the shielding influence of the shelf board in the refrigeration compartment 112 on the projection process of the virtual control panel or the process of detecting the operation of the user.
In addition to the above, in step S604, if it is determined that the shielding object exists on the predetermined projection path of the virtual projection module 120, the virtual projection module 120 projects the predetermined image information to the designated area of the storage compartment based on the predetermined projection path. In addition, after step S604, the method may further include: voice prompt step: if it is determined that a shield exists on the preset projection path of the virtual projection module 120, a prompt message indicating that the shield exists on the preset projection path of the virtual projection module 120 is played through the voice broadcast device. And if the shielding object does not exist on the preset projection path, stopping playing the prompt message and executing the projection step.
Fig. 7 is a schematic flow chart of a method for detecting a projected shielding object inside a refrigerator according to another embodiment of the present invention, and referring to fig. 7, the method provided in this embodiment may include the following steps:
s702, detecting a door opening event of the refrigerator;
s704, emitting infrared signals within a period of time after the refrigerator is opened;
s706, receiving and recording the reflected signal of the infrared signal and the signal intensity of the reflected signal;
s708, judging whether 10 groups of data are recorded; if yes, go to step S710; if not, continuing to execute the step S706;
s710, arranging the recorded 10 groups of data and the signal intensity from small to large;
s712, selecting the 5 th signal data as the signal data to be judged;
s714, judging whether the signal intensity corresponding to the 5 th signal data is within a preset threshold range H; if yes, go to step S716; if not, go to step S718;
s716, judging that no shielding object exists, projecting a virtual touch panel, and continuously receiving the reflected signal to execute the processes of recording, sequencing and selecting the reflected signal data;
s718, receiving and recording a reflected signal of the infrared signal and the signal intensity of the reflected signal;
s720, judging whether the signal intensity of the selected signal data is continuously out of the preset threshold range H for a period of time; if yes, go to step S722; if not, go to step S716;
s722, it is determined that a mask exists on the predetermined projection path of the virtual projection module 120.
For the case that the virtual projection module 120 determines that there is a shielding object on the preset projection path, the process steps shown in fig. 8 can be executed as follows:
s802, detecting that a shield exists on a preset projection path of the virtual projection module 120;
s804, the virtual projection module 120 projects preset image information, such as preset pictures, videos, and the like;
s806, playing the prompt message by using a voice playing device;
s808, continuously detecting whether a shelter exists on the preset projection path of the virtual projection module 120; if yes, go to step S802; if not, executing step S810;
s810, the voice playing device stops playing the voice message, and the virtual projection module 120 projects the virtual touch panel.
In the solution provided in this embodiment, when it is detected that the preset projection path of the virtual projection module 120 has no shielding object, the virtual touch panel can be projected for a user to operate, and adjust the operation mode or operation parameters of the refrigerator; when detecting that the preset projection path of the virtual projection module 120 has a shield, the virtual projection module 120 suspends projecting the virtual key, and turns to projecting preset image information, such as a special pattern or a special color, and in addition, if detecting the shield, the voice broadcasting device can prompt that a prompt tone of the shield exists, so that the purpose of reminding a user is achieved, the user can easily find the position of the shield, and the articles in the refrigerator can be adjusted in time to be placed. When the virtual projection module detects that the shielding object is cleared again, the virtual touch panel can start to be projected. Based on the scheme that this embodiment provided, set for the projection scheme to the condition that has or not sheltered from the thing respectively, not only can satisfy user's control demand to the refrigerator, can also remind when detecting the shelter, and then make virtual projection module 120 project virtual touch panel to the appointed area smoothly, promote user experience.
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 method of detecting a projected shelter inside a refrigerator, the refrigerator comprising: the box body defines a storage chamber; the virtual projection module is arranged in the storage room;
the method comprises the following steps:
a shielding object judging step: emitting an optical detection signal after the refrigerator is opened, and judging whether a shield exists on a preset projection path of the virtual projection module based on a reflection signal corresponding to the optical detection signal;
a projection step: and if the preset projection path is judged to be free of shielding objects, a virtual touch panel is projected to the designated area of the storage room through the virtual projection module based on the preset projection path.
2. The method of claim 1, wherein the refrigerator further comprises a door sensing device;
the shielding object judging step comprises the following steps:
and a door opening detection sub-step: detecting a door opening event of the refrigerator through the door body sensing device, and sending a door opening signal within a preset time range after the refrigerator is opened;
a signal transmission sub-step: acquiring the door opening signal, and transmitting an optical detection signal through the virtual projection module based on a preset projection path of the virtual projection module;
a signal receiving sub-step: acquiring a reflected signal of the optical detection signal reflected by any reflector through the virtual projection module;
a judgment substep: and judging whether a shelter exists on the preset projection path or not based on the signal intensity of the reflected signal.
3. The method of claim 2, wherein the signal receiving substep is further followed by:
and (3) signal screening: recording the reflection signals acquired by the virtual projection module in a preset time period, and generating a reflection signal data list; wherein the list of reflected signal data comprises: each reflected signal and its acquisition time and corresponding signal strength;
and acquiring a plurality of continuous reflection signal data based on the reflection signal data list, and arranging the plurality of reflection signal data from small to large according to the signal intensity.
4. The method of claim 3, wherein the substep of determining comprises:
selecting a to-be-judged reflection signal in a specified arrangement serial number from the arranged multiple reflection signal data, and acquiring the signal intensity of the to-be-judged reflection signal;
and judging whether a shelter exists on the preset projection path or not based on the signal intensity of the to-be-judged reflection signal.
5. The method of claim 2, wherein the substep of determining comprises:
judging whether the signal intensity of the reflected signal is within a preset threshold range;
if the signal intensity of the reflected signal is within a preset threshold range, judging that no shielding object exists on a preset projection path of the virtual projection module;
if the signal intensity of the reflected signal is out of the preset threshold range, continuing to execute the signal receiving substep, and judging that a shield exists on a preset projection path of the virtual projection module when detecting that the signal intensity is always out of the preset threshold range in a specified time period.
6. The method of claim 1, wherein the storage compartment comprises a refrigeration compartment; the virtual projection module is arranged at the top of the refrigerating chamber;
the projecting step includes:
if the fact that no shielding object exists on a preset projection path of the virtual projection module is judged, a virtual touch panel is projected to a specified area at the bottom of the refrigerating compartment through the virtual projection module based 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.
7. The method of claim 1, wherein the projecting step further comprises:
and if the shield exists on the preset projection path of the virtual projection module, projecting preset image information to the specified area of the storage room through the virtual projection module based on the preset projection path.
8. The method of claim 7, wherein the refrigerator further comprises a voice announcement device;
the projecting step further comprises:
voice prompt step: and if the preset projection path of the virtual projection module is judged to have the shielding object, playing prompt information of the shielding object on the preset projection path of the virtual projection module through the voice broadcasting device.
9. The method of claim 8, wherein the voice prompting step further comprises:
and if the preset projection path is judged to have no shielding object, stopping playing the prompt message and executing the projection step.
10. A refrigerator, comprising:
the box body defines a storage chamber;
the virtual projection module is arranged in the storage room;
projection controller comprising a memory and a processor, the memory having a program stored therein, the program when executed by the processor being for implementing the refrigerator interior projected shelter detection method of any one of claims 1 to 9.
CN201910906628.0A 2019-09-24 2019-09-24 Refrigerator interior projection shielding object detection method and refrigerator Pending CN112629104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910906628.0A CN112629104A (en) 2019-09-24 2019-09-24 Refrigerator interior projection shielding object detection method and refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910906628.0A CN112629104A (en) 2019-09-24 2019-09-24 Refrigerator interior projection shielding object detection method and refrigerator

Publications (1)

Publication Number Publication Date
CN112629104A true CN112629104A (en) 2021-04-09

Family

ID=75282818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910906628.0A Pending CN112629104A (en) 2019-09-24 2019-09-24 Refrigerator interior projection shielding object detection method and refrigerator

Country Status (1)

Country Link
CN (1) CN112629104A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128436A1 (en) * 2001-12-28 2003-07-10 Yazaki Corporation Display apparatus for a vehicle
US20100253860A1 (en) * 2009-04-07 2010-10-07 Funai Electric Co., Ltd. Projector
CN103513499A (en) * 2012-06-29 2014-01-15 建兴电子科技股份有限公司 Image projector and detection method thereof
WO2015111364A1 (en) * 2014-01-22 2015-07-30 株式会社リコー Image projection device, control method, and program
US20150244996A1 (en) * 2014-02-27 2015-08-27 Seiko Espon Corporation Projector
US20150241763A1 (en) * 2014-02-24 2015-08-27 Yukimi NISHI Image projection apparatus
GB201610856D0 (en) * 2016-06-21 2016-08-03 Ffe Ltd Improvements in or relating to beam phasing
WO2016173165A1 (en) * 2015-04-30 2016-11-03 青岛海尔股份有限公司 Refrigerator
JP2018004951A (en) * 2016-07-01 2018-01-11 株式会社リコー Image projection device
CN108679901A (en) * 2018-05-08 2018-10-19 澳柯玛股份有限公司 A kind of refrigerator of adjustable view field and the working method of the refrigerator
DE102017207222A1 (en) * 2017-04-28 2018-10-31 BSH Hausgeräte GmbH Representation of information on internal parts of a refrigerator
WO2018197224A1 (en) * 2017-04-28 2018-11-01 BSH Hausgeräte GmbH Display of information on a refrigeration appliance

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128436A1 (en) * 2001-12-28 2003-07-10 Yazaki Corporation Display apparatus for a vehicle
US20100253860A1 (en) * 2009-04-07 2010-10-07 Funai Electric Co., Ltd. Projector
CN101859051A (en) * 2009-04-07 2010-10-13 船井电机株式会社 Projector
CN103513499A (en) * 2012-06-29 2014-01-15 建兴电子科技股份有限公司 Image projector and detection method thereof
WO2015111364A1 (en) * 2014-01-22 2015-07-30 株式会社リコー Image projection device, control method, and program
US20150241763A1 (en) * 2014-02-24 2015-08-27 Yukimi NISHI Image projection apparatus
US20150244996A1 (en) * 2014-02-27 2015-08-27 Seiko Espon Corporation Projector
WO2016173165A1 (en) * 2015-04-30 2016-11-03 青岛海尔股份有限公司 Refrigerator
GB201610856D0 (en) * 2016-06-21 2016-08-03 Ffe Ltd Improvements in or relating to beam phasing
JP2018004951A (en) * 2016-07-01 2018-01-11 株式会社リコー Image projection device
DE102017207222A1 (en) * 2017-04-28 2018-10-31 BSH Hausgeräte GmbH Representation of information on internal parts of a refrigerator
WO2018197224A1 (en) * 2017-04-28 2018-11-01 BSH Hausgeräte GmbH Display of information on a refrigeration appliance
CN108679901A (en) * 2018-05-08 2018-10-19 澳柯玛股份有限公司 A kind of refrigerator of adjustable view field and the working method of the refrigerator

Similar Documents

Publication Publication Date Title
US10290281B2 (en) Display device and control method
EP2995888B1 (en) Refrigerator and control method for the same
US10330377B2 (en) Refrigeration appliance comprising a camera module
CN112556267B (en) Lighting control method for refrigerator compartment and refrigerator
CN211372855U (en) Refrigerator with internal projection function
CN108592514A (en) Intelligent refrigerator and its interaction control method
KR20240073841A (en) Refrigerator and Controlling Method for the same
KR102152399B1 (en) Refrigerator and Controlling Method for the same
CN112629104A (en) Refrigerator interior projection shielding object detection method and refrigerator
KR20150118867A (en) Refrigerator and Controlling Method for the same
CN108955068B (en) Food material management method and food material management system for refrigerator for blind people
KR20210036887A (en) Refrigerator and Controlling Method for the same
US20210020088A1 (en) Image display device and motion detection method of image display device
CN112629101B (en) Refrigerator with a door
KR20150127013A (en) Refrigerator and Controlling Method for the same
JP6500251B2 (en) refrigerator
CN112629103A (en) Refrigerator with internal projection function
JP6167288B2 (en) refrigerator
CN112629107A (en) Method for performing projection display in refrigerator compartment and refrigerator
CN112556266A (en) Refrigerator with internal projection function
CN112629110B (en) Refrigerator with a door
CN112629142A (en) Refrigerator virtual key operation processing method and refrigerator
KR20150118865A (en) Refrigerator and Controlling Method for the same
CN211120193U (en) Refrigerator with a door
JP6518958B2 (en) refrigerator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210409

RJ01 Rejection of invention patent application after publication