CN114520897A - Method and device for adjusting position of projection picture, projection equipment and storage medium - Google Patents
Method and device for adjusting position of projection picture, projection equipment and storage medium Download PDFInfo
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- CN114520897A CN114520897A CN202011301256.8A CN202011301256A CN114520897A CN 114520897 A CN114520897 A CN 114520897A CN 202011301256 A CN202011301256 A CN 202011301256A CN 114520897 A CN114520897 A CN 114520897A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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Abstract
The present application relates to the field of projection, and in particular, to a method and an apparatus for adjusting a position of a projection screen, a projection device, and a storage medium. The first picture position displacement parameter is determined by acquiring the position of the projection equipment and the current projection picture position, the first optical machine movement parameter is obtained, and the optical machine is subjected to displacement control according to the first optical machine movement parameter, so that the position of the projection picture is automatically adjusted, the efficiency of adjusting the projection picture position is improved, and the convenience in use of the projection equipment is improved.
Description
Technical Field
The present application relates to the field of projection, and in particular, to a method and an apparatus for adjusting a position of a projection screen, a projection device, and a storage medium.
Background
With the development of projection technology, projection equipment is widely applied to families, offices, schools, entertainment places and the like at present, and the human-computer interaction of the projection equipment plays a crucial role in user experience. At present, the position of a projection picture is usually adjusted by adjusting projection equipment, the adjustment process is complex and tedious, the use cost of the projection equipment is increased, the use convenience of the projection equipment is reduced, and the use experience of a user is influenced.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a projection device and a storage medium for adjusting a position of a projection screen.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides a method for adjusting a position of a projection screen, where the method includes:
obtaining a projection device position and a current projection picture position, wherein the projection device position represents a relative position of a projection device in a projection space, and the current projection picture position represents a position of a projection picture of the projection device on a projection plane;
determining a first picture position displacement parameter according to the position of the projection equipment and the position of the current projection picture, wherein the first picture position displacement parameter represents the relative displacement relation between the position of the current projection picture and the position of a standard picture, and the position of the standard picture represents the standard position of the projection picture corresponding to the position of the projection equipment on the projection plane;
determining a first optical machine movement parameter according to the first picture position displacement parameter, wherein the first optical machine movement parameter represents a movement parameter required by an optical machine when the projection picture is moved from the current projection picture position to the standard picture position;
and carrying out displacement control on the optical machine according to the first optical machine movement parameter.
In an optional embodiment, after the step of controlling the displacement of the optical-mechanical device according to the first optical-mechanical movement parameter, the method further includes:
acquiring image information corresponding to the standard picture position;
judging whether an obstacle exists according to the image information;
if not, controlling the optical machine to project the standard picture position;
and if so, performing displacement control on the optical machine so that the projection picture is not shielded by obstacles on the projection surface.
In an optional embodiment, the step of controlling the displacement of the optical machine includes:
determining the position of an image without obstacles according to the position of the obstacles, wherein the position of the image without obstacles is represented on the projection plane, and the projection image has no position shielded by the obstacles;
determining a second picture position displacement parameter according to the barrier-free picture position, wherein the second picture position displacement parameter represents a parameter of the projection picture moving to the barrier-free picture position;
determining a second optical machine movement parameter according to the second image position displacement parameter, wherein the second optical machine movement parameter represents the movement parameter of the optical machine for moving the projection image to the barrier-free image position;
and carrying out displacement control on the optical machine according to the second optical machine movement parameter.
In an optional embodiment, the second frame position displacement parameter and the second optical-mechanical movement parameter satisfy the following formula:
In an optional embodiment, the projection device position includes a first distance parameter and a second distance parameter, the first distance parameter represents a distance parameter from the projection device to the projection plane, the second distance parameter is a distance parameter from the projection device to the top of the projection space, and the first picture position displacement parameter, the first distance parameter, and the second distance parameter satisfy the following formula:
In an optional embodiment, the first frame position displacement parameter and the first optical engine movement parameter satisfy the following formula:
In a second aspect, the present application provides an apparatus for adjusting a position of a projection screen, the apparatus comprising:
the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring the position of projection equipment and the position of a current projection picture, the position of the projection equipment represents the relative position of the projection equipment in a projection space, and the position of the current projection picture represents the position of a projection picture of the projection equipment on a projection plane;
the calculation module is used for determining a first picture position displacement parameter according to the position of the projection equipment and the position of the current projection picture, wherein the first picture position displacement parameter represents the relative displacement relation between the position of the current projection picture and the position of a standard picture, and the position of the standard picture represents the standard position of the projection picture corresponding to the position of the projection equipment on the projection plane; determining a first optical machine movement parameter according to the first picture position displacement parameter, wherein the first optical machine movement parameter represents a movement parameter required by an optical machine when the projection picture is moved from the current projection picture position to the standard picture position;
and the execution module is used for carrying out displacement control on the optical machine according to the first optical machine movement parameter.
In an alternative embodiment, the apparatus further comprises a processing module configured to:
acquiring image information corresponding to the standard picture position;
judging whether an obstacle exists according to the image information;
if not, controlling the optical machine to project the standard picture position;
and if so, performing displacement control on the optical machine so that the projection picture is not shielded by obstacles on the projection surface.
In a third aspect, the present application provides a projection device comprising a processor and a memory, the memory storing a computer program, the processor implementing the method of any of the preceding embodiments when executing the computer program.
In a fourth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, implements the method of any of the preceding embodiments.
The application provides a method and a device for adjusting the position of a projection picture, projection equipment and a storage medium. The first picture position displacement parameter is determined by acquiring the position of the projection equipment and the position of a projection picture projected by the projection equipment, so that a first optical machine movement parameter is obtained, and the optical machine changes according to the position of the first optical machine movement parameter, so that the position of the projection picture is automatically adjusted by the projection equipment, the position adjustment of the projection picture is more convenient, and the experience degree of a user is improved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram of a projection apparatus provided by an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for adjusting a position of a projection screen according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for adjusting a position of a projection screen according to an embodiment of the present invention;
FIG. 4 is a schematic flowchart illustrating a method for adjusting a position of a projection screen according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an example of a method for adjusting a position of a projection screen according to an embodiment of the present invention;
fig. 6 is a diagram illustrating another example of a method for adjusting a position of a projection screen according to an embodiment of the present invention;
fig. 7 is a functional block diagram of an apparatus for adjusting a position of a projection screen according to an embodiment of the present invention.
In the figure: 100-a projection device; 111-a light machine; 113-a light engine mover; 115-a sensor; 117-a battery; 119-a processor; 121-a memory; 200-means for adjusting the position of the projected picture; 210-an obtaining module; 220-a calculation module; 230-an execution module; 240-processing module.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in some embodiments of the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. The components of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on a part of the embodiments in the present application without any creative effort belong to the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 is a schematic block diagram of a projection apparatus according to the present application. Projection device 100 may include an optical engine 111, an optical engine mover 113, a sensor 115, a battery 117, a processor 119, and a memory 121. It will be understood by those skilled in the art that the structure shown in fig. 1 is merely illustrative and is not intended to limit the structure of the projection apparatus 100. For example, projection device 100 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The optical engine 111, the optical engine mover 113, the sensor 115, the battery 117, the processor 119, and the memory 121 are electrically connected to each other directly or indirectly to achieve data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The processor 119 described above is used to execute executable modules stored in memory.
The optical engine 111 is used for projecting a picture, and the position of the projected picture can be changed by changing the position of the optical engine. The optical engine 111 may include a DMD (digital micromirror device) display core, a light source, a lens light path, and other mechanisms. Optionally, a heat dissipation mechanism and the like may be further included in the optical engine 111.
The optical engine mover 113 is used to move the optical engine, and a motor may be used to drive the optical engine to move.
The sensor 115 is used to acquire environmental data around the projection apparatus 100. The environment data may include, for example, an image of the projection area, a position of the projection device in the projection space.
The battery 117 described above is used to provide the energy required for operation of the projection device.
The processor 119 may be an integrated circuit chip having signal processing capabilities. The processor 119 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the integrated circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 121 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a programmable read-only memory (PROM), an erasable read-only memory (EPROM), an electrically erasable read-only memory (EEPROM), and the like. The memory 121 is configured to store a program, and the processor 119 executes the program after receiving an execution instruction, and the method performed by the projection apparatus 100 defined by the process disclosed in any embodiment of the present application may be applied to the processor 119, or implemented by the processor 119.
The projection apparatus 100 in this embodiment may be used to perform each step in each method provided in this embodiment.
Please refer to fig. 2, which is a flowchart illustrating a method for adjusting a position of a projection frame according to an embodiment of the present disclosure. The specific process shown in fig. 2 will be described in detail below.
Step S200, obtaining the position of the projection equipment and the position of the current projection picture;
the position of the projection device represents the relative position of the projection device in the projection space, and the position of the current projection picture represents the position of the projection picture of the projection device on the projection plane.
Optionally, the projection space may be indoor, and the projection space should have a projection surface for presenting a projection picture, and may be a wall surface, a curtain, or the like. The projection equipment acquires the distance from the projection equipment to the projection surface through the sensor, and determines the position of the projection equipment in the projection space.
The position of the projected picture can be determined by the size of the projected picture and the center point of the projected picture.
Step S202, determining a first picture position displacement parameter according to the position of the projection equipment and the position of the current projection picture;
the first picture position displacement parameter represents the relative displacement relation between the current projection picture position and the standard picture position, and the standard picture position represents the standard position of the projection picture corresponding to the position of the projection equipment on the projection plane.
Specifically, the standard picture position is a position of the projection picture on the projection plane in order to enable a user to view the projection picture more clearly and comfortably. The standard screen position may be preset or calculated according to the current position of the projection device. Comparing the position of the current projection picture with the position of the standard picture to obtain the displacement between the two positions, wherein the displacement is the first picture position displacement parameter, and can be but is not limited to a distance value and a direction.
Step S204, determining a first optical machine movement parameter according to the first picture position displacement parameter;
the first optical machine movement parameter representation represents movement parameters required by the optical machine when the projection picture is moved from the current projection picture position to the standard picture position.
The change of the position of the projection picture needs to move the optical machine, the position movement of the optical machine has a corresponding relation with the displacement of the position of the projection picture, and the movement parameter of the optical machine can be obtained according to the corresponding relation.
Step 206, performing displacement control on the optical machine according to the first optical machine movement parameter;
according to the movement parameters of the optical machine, the optical machine mover changes the position of the optical machine, so that the position of the projection picture is changed, and the position of the projection picture is moved to the position of the standard picture.
Through the above steps, the position of the projection device and the position of the projection screen projected by the projection device are obtained, and the position of the projection screen is substantially adjusted according to the two positions. The optical machine mover changes the position of the optical machine according to the movement parameter, so that the position of the projection picture is changed accordingly. The position of the projection picture can be automatically adjusted by the projection equipment, the use convenience of the projection equipment is improved, and the use experience of a user is improved.
The method can also detect the projection picture adjusted to the standard picture position, judge whether an obstacle influences the projection picture, and avoid the obstacle. Further, the embodiment of the present invention provides a possible implementation manner to achieve the above object. With reference to fig. 3 based on fig. 2, fig. 3 is a flowchart of a method for adjusting a position of a projection picture according to an embodiment of the present application. After the above steps are performed, the method further comprises:
step S208, obtaining image information corresponding to the standard picture position;
the projection device can shoot the image of the projection surface at the standard picture position through the sensor.
Step S210, judging whether an obstacle exists according to the image information;
common projection surfaces such as wall surfaces, curtains and the like are all pure-color pictures. The obstacle may be a switch, a door, a window, a pendant, etc. The color of the obstacle is different from that of the projection surface, so that whether the color in the image is a single color or not can be judged through a flood filling algorithm. If it is a single color, there is no obstacle, step S212 is performed, and if it is not a single color, there is an obstacle, step S214 is performed.
Step S212, controlling the optical machine to project the standard picture position;
if no obstacle exists, the projection equipment starts the optical machine on the standard picture position to project a picture.
Step S214, the displacement of the optical machine is controlled, so that no barrier is shielded on the projection surface of the projection picture;
if the obstacle exists, the position of the optical machine can be changed by moving the optical machine, so that the position of the projection picture is changed, and the projection picture avoids the obstacle.
On the basis of fig. 3, please refer to fig. 4, which provides a possible implementation manner for the step S214, and the step S214 includes the following sub-steps:
step S214-1, determining the position of the image without the obstacle according to the position of the obstacle;
the position of the image without the obstacle is represented on the projection surface, and the projection image has no position blocked by the obstacle.
In a possible implementation manner, step S214-1 may obtain the position of the obstacle according to a flood filling algorithm, and obtain an area without the obstacle on the projection plane, thereby determining the position without the obstacle in the projection picture.
Step S214-2, determining a second picture position displacement parameter according to the position of the barrier-free picture;
in one possible implementation, the position of the current projection picture is compared with the position of the unobstructed picture to obtain a displacement between the two positions, which is a second picture position displacement parameter, and may be, but is not limited to, a distance value and a direction.
Step S214-3, determining a second optical-mechanical movement parameter according to the second picture position displacement parameter;
specifically, the second optical-mechanical movement parameter establishes a relationship between the second image position displacement and the control of the optical-mechanical movement.
Step S214-4, displacement control is carried out on the optical machine according to the second optical machine movement parameter;
specifically, according to the movement parameters of the optical machine, the optical machine mover changes the position of the optical machine, so that the position of the projection picture is changed, and the projection picture avoids the obstacle.
Through the steps, whether the projection picture has the obstacle or not is judged according to the image by shooting the image of the projection plane, if the projection picture has the obstacle, the position without the obstacle in the projection picture is obtained according to the position of the obstacle, after the position of the image without the obstacle is obtained, a displacement relation is established with the position of the current projection picture, the displacement relation is converted into a parameter for driving the optical machine to move, the position of the optical machine is changed, the projection picture is moved from the position with the obstacle to the position without the obstacle, and the obstacle is avoided by adjusting the position of the projection picture.
In fig. 5, (a) shows the position of the projection device in the projection space, i.e., the room, W1 shows the ceiling of the projection space, i.e., the wall, W1 shows the projection surface, i.e., the wall surface, and the distance parameter from the projection device to the ceiling, i.e., the first distance parameter, can be measured by the sensor
Also a distance parameter of the projection device to the wall surface, i.e. a second distance parameter
These two distance parameters may represent the projection device position. The optical engine of the projection apparatus projects a projection picture on the wall W1, which can be referred to as (b).
(b) The middle M1 indicates the projection screen on the wall W1, and D1 indicates the position of the center point of the projection screen, and the current projection screen position can be indicated by this position. The embodiment provides a method for obtaining the position of the center point of a projection picture:
the width of the projection picture can be obtained according to the distance from the projection equipment to the projection surface and the projection ratio, the size of the projection picture can be calculated according to the width and the picture proportion of the projection picture, and the position of the center point of the projection picture can be determined according to the size of the projection picture. It should be noted that the projection ratio is a parameter set by the projection device, and represents a ratio of a distance from the projection device to the projection surface to a width of a projection screen when the projection device forms a clear image. The picture scale represents the ratio of the width to the height of the projected picture, typically 4:3 and 16: 9.
The position of the projection equipment and the position of the current projection picture are obtained, and the displacement parameter of the position of the first picture can be obtained by combining the following formula provided by the method.
The first picture position displacement parameter, the first distance parameter and the second distance parameter are represented.
After the first picture position displacement parameter is obtained, the first optical machine movement parameter can be determined, so that the position of the optical machine is changed, and the position of the projection picture is adjusted. The method provides a corresponding relation between the first picture position displacement parameter and the first optical-mechanical movement parameter, and can obtain the first optical-mechanical movement parameter.
According to the calculated first picture positionDisplacement parameter
The following formula is provided in connection with the method:
r the first conversion parameter can be the conversion parameter of the motor 10 steps/cm to obtain the movement parameter of the first optical machine
It should be noted that the optical engine mover used in this embodiment is a motor, and the shaft on which the optical engine is located is moved by the rotation of the motor, so as to change the position of the optical engine. Specifically, see (c).
(c) And the middle X represents a horizontal axis, which can be moved horizontally. Y denotes a vertical axis, which can be moved vertically. The light engine is positioned on a horizontal axis and a vertical axis. The vertical shaft and the horizontal shaft are moved by a motor, so that the position of the optical machine is changed. N1 represents the position of the light engine before the movement, and N2 represents the position of the light engine after the movement according to the first light engine movement parameter. The position of the projection picture is changed by the position movement of the optical machine. Specifically, referring to (D), M1 is a projection image projected by the optical engine on the wall W1 at the position N1, and the position of the projection image is D1. M2 is a projection picture projected on the wall W1 when the optical engine moves to the position N2, and the position of the projection picture is D2. That is, the optical engine moves from the position N1 to the position N2, so that the position of the projection screen moves from the position D1 to the position D2, and the position of the projection screen is changed.
Fig. 6 is a diagram illustrating a method for adjusting a position of a projection frame according to an embodiment of the invention. M3 in fig. 6 (E) represents the projection screen on the projection plane W3, and the projection screen M3 is located at the standard screen position E1. The projection equipment shoots an image of a projection surface through a sensor, obtains a switch with an obstacle in a projection picture, and obtains the position F of the obstacle. According to the position F of the obstacle and the position E1 of the projection picture, the fact that the projection picture can avoid the obstacle when the projection picture is at the position E2 can be obtained, namely the position E2 is the position of the picture without the obstacle, and therefore the position displacement parameter of the second picture can be determined
And the second optical machine moving parameter can be obtained through the second picture position displacement parameter, so that the position of the optical machine is changed, and the projection picture is moved to a position where no barrier is shielded.
The method provides a corresponding relation between the second picture position displacement parameter and the second optical-mechanical movement parameter, and can obtain the second optical-mechanical movement parameter.
According to the calculated second picture position displacement parameter
The following formula is provided in connection with the method:
The second conversion parameter p can be the conversion parameter of the motor by 10 steps/cm to obtain the movement parameter of the second optical machine
It should be noted that the optical engine mover used in this embodiment is a motor, and the rotation of the motor moves the shaft on which the optical engine is located, thereby changing the position of the optical engine. Specifically, see (f).
(f) And the middle X represents a horizontal axis, which can be moved horizontally. Y denotes a vertical axis, which can be moved vertically. The light engine is positioned on a horizontal axis and a vertical axis. The vertical shaft and the horizontal shaft are moved by a motor, so that the position of the optical machine is changed. P1 represents the position of the light engine before the movement, and P2 represents the position of the light engine after the movement according to the second light engine movement parameter. The position of the projection picture is changed by the position movement of the optical machine, and the barrier is avoided.
In order to execute the corresponding steps in the above embodiments and various possible manners, an implementation manner of the data processing apparatus is given below, please refer to fig. 7, and fig. 7 is a functional block diagram of the apparatus 200 for adjusting a position of a projection picture provided in the present application. It should be noted that the basic principle and the generated technical effects of the apparatus 200 for adjusting the position of a projection image provided by the present application are the same as those of the above embodiments, and for the sake of brief description, no details are mentioned in this embodiment, and reference may be made to the corresponding contents in the above embodiments for brevity. The apparatus 200 for adjusting the position of the projection screen includes: an acquisition module 210, a calculation module 220, and an execution module 230.
The obtaining module 210 is configured to obtain a position of the projection device and a position of a current projection picture, where the position of the projection device represents a relative position of the projection device in the projection space, and the position of the current projection picture represents a position of a projection picture of the projection device on the projection plane.
The calculation module 220 is configured to determine a first picture position displacement parameter according to the position of the projection device and the position of the current projection picture, where the first picture position displacement parameter represents a relative displacement relationship between the position of the current projection picture and a standard picture position, and the standard picture position represents a standard position of the projection picture corresponding to the position of the projection device on the projection plane; and determining a first optical machine movement parameter according to the first picture position displacement parameter, wherein the first optical machine movement parameter represents a movement parameter required by the optical machine when the projection picture is moved from the current projection picture position to the standard picture position.
The executing module 230 is configured to perform displacement control on the optical engine according to the first optical engine movement parameter.
Optionally, the apparatus 200 for adjusting the position of the projection screen further includes a processing module 240.
The processing module 240 is configured to: acquiring image information corresponding to the standard picture position;
judging whether an obstacle exists according to the image information;
if not, controlling the optical machine to project the standard picture position;
if yes, the displacement of the optical machine is controlled, so that no barrier blocks the projection picture on the projection surface.
The processing module 240 executes displacement control of the optical machine, including:
determining the position of an image without the obstacle according to the position of the obstacle, wherein the position of the image without the obstacle is represented on a projection surface, and the projection image has no position shielded by the obstacle;
determining a second picture position displacement parameter according to the position of the image without the obstacle, wherein the second picture position displacement parameter represents a parameter for moving the projection image to the position of the image without the obstacle;
determining a second optical machine movement parameter according to the second picture position displacement parameter, wherein the second optical machine movement parameter represents the movement parameter of the optical machine which moves the projection picture to the position of the barrier-free picture;
and performing displacement control on the optical machine according to the second optical machine movement parameter.
The device 200 for adjusting the position of the projection picture can automatically adjust the position of the projection picture, thereby increasing the convenience of the projection equipment 100 and improving the use experience of a user.
The application further provides a projection device 100, which includes a processor 119 and a memory 121, where the memory 121 stores a computer program, and when the processor executes the computer program, the method for adjusting the position of the projection picture disclosed in the above embodiment is implemented, so as to implement automatic adjustment of the position of the projection picture, increase the convenience of use of the projection device 100, and improve the use experience of a user.
The present application also provides a storage medium on which a computer program is stored, which when executed by the processor 119, implements the method for adjusting the position of a projected picture disclosed in the above embodiments. The position of the projection picture can be automatically adjusted, the use convenience of the projection equipment 100 is improved, and the use experience of a user is improved.
The above description is only a few examples of the present application and is not intended to limit the present application, and those skilled in the art will appreciate that various modifications and variations can be made in the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A method for adjusting the position of a projection picture, the method comprising:
obtaining a projection device position and a current projection picture position, wherein the projection device position represents a relative position of a projection device in a projection space, and the current projection picture position represents a position of a projection picture of the projection device on a projection plane;
determining a first picture position displacement parameter according to the position of the projection equipment and the position of the current projection picture, wherein the first picture position displacement parameter represents the relative displacement relation between the position of the current projection picture and the position of a standard picture, and the position of the standard picture represents the standard position of the projection picture corresponding to the position of the projection equipment on the projection plane;
determining a first optical machine movement parameter according to the first picture position displacement parameter, wherein the first optical machine movement parameter represents a movement parameter required by an optical machine when the projection picture is moved from the current projection picture position to the standard picture position;
and carrying out displacement control on the optical machine according to the first optical machine movement parameter.
2. The method of claim 1, wherein after the step of controlling the displacement of the opto-machine according to the first opto-machine movement parameter, further comprising:
acquiring image information corresponding to the standard picture position;
judging whether an obstacle exists according to the image information;
if not, controlling the optical machine to project the standard picture position;
and if so, performing displacement control on the optical machine so that the projection picture is not shielded by obstacles on the projection surface.
3. The method of claim 2, wherein the step of controlling the displacement of the carriage comprises:
determining the position of an image without obstacles according to the position of the obstacles, wherein the image position without obstacles represents the position on the projection surface, and the projection image has no position shielded by the obstacles;
determining a second picture position displacement parameter according to the barrier-free picture position, wherein the second picture position displacement parameter represents a parameter of the projection picture moving to the barrier-free picture position;
determining a second optical machine movement parameter according to the second image position displacement parameter, wherein the second optical machine movement parameter represents the movement parameter of the optical machine for moving the projection image to the barrier-free image position;
and carrying out displacement control on the optical machine according to the second optical machine movement parameter.
4. The method of claim 3, wherein the second frame position shift parameter and the second carriage movement parameter satisfy the following formula:
5. The method of claim 1, wherein the projection device position comprises a first distance parameter and a second distance parameter, the first distance parameter represents a distance parameter from the projection device to the projection surface, the second distance parameter is a distance parameter from the projection device to the top of the projection space, and the first frame position displacement parameter, the first distance parameter, and the second distance parameter satisfy the following formula:
6. The method according to claim 1 or 5, wherein the first frame position displacement parameter and the first optical machine movement parameter satisfy the following formula:
7. An apparatus for adjusting a position of a projected picture, the apparatus comprising:
the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring the position of projection equipment and the position of a current projection picture, the position of the projection equipment represents the relative position of the projection equipment in a projection space, and the position of the current projection picture represents the position of a projection picture of the projection equipment on a projection plane;
the computing module is used for determining a first picture position displacement parameter according to the position of the projection equipment and the position of the current projection picture, wherein the first picture position displacement parameter represents the relative displacement relation between the position of the current projection picture and a standard picture position, and the standard picture position represents the standard position of the projection picture corresponding to the position of the projection equipment on the projection plane; determining a first optical machine movement parameter according to the first picture position displacement parameter, wherein the first optical machine movement parameter represents a movement parameter required by an optical machine when the projection picture is moved from the current projection picture position to the standard picture position;
and the execution module is used for carrying out displacement control on the optical machine according to the first optical machine movement parameter.
8. The apparatus of claim 7, further comprising a processing module to:
obtaining image information corresponding to the standard picture position;
judging whether an obstacle exists according to the image information;
if not, controlling the optical machine to project the standard picture position;
and if so, performing displacement control on the optical machine so that the projection picture is not shielded by obstacles on the projection surface.
9. A projection device comprising a processor and a memory, the memory storing a computer program that, when executed by the processor, performs the method of any one of claims 1 to 6.
10. A storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed by a processor, implements the method of any one of claims 1 to 6.
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