An automatic adjustment method for the projection area of ​​a projector

Abstract

The application relates to the field of light and shadow projection equipment, and discloses an automatic adjustment method for a projection area of a projector. Through the cooperation of a projection offset module and a projection zoom module, the projector can automatically correct the position and size of a projection image by using a start-up image during a start-up process, so that the projection image of the projector is clearer, the visual effect during watching is better, the adjustment process is automatic, personal participation is not needed, the use of the projector is more convenient, and the cooperation of a grid division module divides the projection image into regions, so that the position of an occlusion and the distance that needs to be adjusted by the projection image can be clearly known. Therefore, the adjustment process is more rapid and smooth, the trial and error times of the equipment are reduced, the projection image can be maximized in the case of avoiding occlusion, and the best visual effect is reserved.

Description

Technical Field

[0001] This invention relates to the field of optical projection equipment, and in particular to an automatic adjustment method for the projection area of ​​a projector. Background Technology

[0002] Projectors are imaging devices that use light-emitting lenses to project and magnify video images, which are then projected as strong light and displayed as magnified images in the imaging area. Because projectors do not require fixed installation and can achieve better visual effects at a relatively economical price, they have gradually become more popular than televisions among young people.

[0003] When using a projector, there is no fixed projection location. Users typically choose an open area (wall, ceiling, wardrobe, door) based on the furniture arrangement and personal habits. However, these areas are often not completely empty; other objects may interfere (walls: tables, chairs, cabinets, windows, switches, decorations, etc.; ceilings: beams, light fixtures, etc.; wardrobes and doors: handles, hanging items, etc.). Therefore, to achieve a better viewing experience, the projection location needs to be adjusted. This process is tedious and even more difficult for those unfamiliar with smart devices. Therefore, we propose a method for automatically adjusting the projector's projection area to solve this problem. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide an automatic adjustment method for the projection area of ​​a projector. This solution, through the coordinated operation of a projection offset module and a projection scaling module, allows the projector to automatically adjust the position and size of the projected image during the power-on process, avoiding obstructions in the imaging area. This results in a clearer projected image and a better visual experience. Moreover, the adjustment process is automatic, requiring no manual intervention, making the projector more convenient to use. Furthermore, the grid division module divides the projected image into regions, clearly indicating the location of obstructions and the distance the projected image needs to be adjusted. This not only makes the adjustment process faster and smoother, reducing the number of trial and error attempts, but also maximizes the projected image while avoiding obstructions, preserving the best visual effect.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An automatic adjustment method for the projection area of ​​a projector includes a projection device, a body stabilization device, a grid division module, an image capture module, an image comparison module, an obstacle analysis module, a projection offset module, and a projection scaling module. The working steps include:

[0009] S1. Projection: First, install the projection device on the stable device on the machine body, then align the projection device with the imaging area, turn on the projection device, and the projection device will project the image onto the imaging area.

[0010] The projector has a built-in calibration image, and this image will be used as the startup screen.

[0011] S2, Region Division: The grid division module divides the presented image into neatly arranged small squares according to pixels. The aspect ratio of the small squares is the same as that of the presented image.

[0012] S3 Obstacle Detection: After the image projected by the projection device is focused, the image capture module acquires the projected image information, and the image comparison module compares it with the source data to determine whether there is any obstruction.

[0013] The image capture module automatically starts working the moment the projection device is turned on and the image is projected, and maintains a capture speed of ten frames per second.

[0014] S4. Image Shift: The projection shift module shifts the entire image a corresponding distance in the opposite direction of the obstruction according to the number of grid columns or rows of the obstruction area, thus avoiding the obstruction.

[0015] S5, Image Scaling: When there are multiple unavoidable obstructions around the projected image, the projection scaling module calculates the position of the obstructions using a grid and scales the projected image proportionally to avoid the obstructions.

[0016] When the projection scaling module scales the image, the projection offset module also works together to achieve the best results.

[0017] By working together with the projection offset module and the projection scaling module, the projector can automatically adjust the position and size of the projected image during startup, avoiding obstructions in the imaging area. This results in a clearer projected image and a better visual experience. Moreover, the adjustment process is automatic, requiring no manual intervention, making the projector more convenient to use. Furthermore, the grid division module divides the projected image into regions, clearly indicating the location of obstructions and the distance that needs to be adjusted. This not only makes the adjustment process faster and smoother, reducing the number of trial and error attempts, but also maximizes the projected image while avoiding obstructions, preserving the best visual effect.

[0018] Furthermore, the obstacle analysis module analyzes the specific location of the obstruction in the grid network and sets the optimal avoidance route for the projection offset module and the projection scaling module. This minimizes the adjustment range of the projected image, making it match the original imaging area as closely as possible, preserving the best viewing angle, and improving the overall viewing experience.

[0019] The projection device is specifically a projector. The projector has ventilation holes on its sides, a projection port, an infrared sensor, and a camera lens on its front, and a power button and data interface on its back. The device's stabilization system includes a base and a connector. The connector is circular, with a diameter larger than the projector's length and width. The projector, base, and connector are assembled together, and an adjustment mechanism is located at the joint. The connector is L-shaped, with two sides, a bottom and a back, which respectively cover the bottom and back of the projector. Adjustment... The mechanism includes directional adjustment grooves formed on the outer surfaces of the two sides of the connector. Fixed grooves are formed on the bottom walls at both ends of the directional adjustment grooves. A directional adjustment slider extending into the directional adjustment groove is fixedly connected to the top of the base. The directional adjustment slider is slidably connected within the directional adjustment groove. The adjustment mechanism also includes a mounting groove formed at the center of the bottom of the base. A rotating knob is rotatably connected inside the mounting groove. A socket is formed on the top of the rotating knob. A fixed rod is slidably inserted into the socket. The other end of the fixed rod passes through the base and the directional adjustment slider and enters the fixed groove. The fixed rod and the directional adjustment slider are threaded together. Connect the projector so that the bottom surface of the toggle bar is flush with the bottom surface of the base. When projecting onto a vertical surface (wall, door, furniture), ensure the projector is parallel to the base and connector (at this time, the bottom surface of the base and connector are in contact). For horizontal placement, the large base provides stability. To project onto a horizontal surface (roof, floor), rotate the knob to disengage the fixing rod from the fixing slot, thus unlocking the connector from the base. Slide the base and direction adjustment slider along the direction adjustment groove to the other end (at this time, the back of the base and connector are in contact). (Connect), then turn the knob to make the fixing rod enter the fixing slot here, and the connector and base are fixed again. At this time, the projector and connector are still parallel, but the projector and connector are perpendicular to the base. In this way, the base is still horizontally placed to stabilize the projector body, while the projector is in a vertical position for projection. This makes the projector more versatile in projection mode, wider in adaptability, and more stable in projection state. At the same time, the wide base can increase the contact area between the projector and the equipment placement area. When the placement area is a soft bed or sofa, the base will distribute the weight and still place it stably.

[0020] Furthermore, the two ends of the direction adjustment slide extend to the midpoints of the two sides of the connector, so that when the projector uses two projection modes, the direction adjustment slider is located in the middle of the two sides of the connector, making the splicing of the connector and the base more stable.

[0021] Furthermore, the adjustment mechanism also includes a distance adjustment groove on the inner surface of the bottom edge of the connector. A distance adjustment slider is fixedly connected to the bottom of the base and slides within the distance adjustment groove. When projecting horizontally, the connector is perpendicular to the base (horizontal plane). The projector can be slid upwards along the bottom edge of the connector by the cooperation of the distance adjustment groove and the distance adjustment slider, moving the projector away from the base. This allows for more space behind the projector, facilitating the switching on and off of the projector and wiring.

[0022] Furthermore, the base has an internal stabilizing mechanism, which includes a storage slot and a rotating slot at the bottom of the base. The storage slots are arranged in a circular array around the outer edge of the base, and the rotating slot is wrapped around the mounting slot. A rotating ring is rotatably connected inside the rotating slot, and an array of movable slots is arranged on the outer side of the rotating ring. The position of the movable slots corresponds to the storage slots, and a retraction slide is provided on the inner wall of the movable slot. The distance difference between the two ends of the retraction slide and the center of the projector is the same as the width of the stabilizing plate. A retraction slider is slidably connected inside the retraction slide. A through slot is provided between the rotating slot and the storage slot, and a distance adjustment slider is provided between the retraction slider and the stabilizing plate. By vertically stabilizing the plate at the bottom of the base, when projecting onto a horizontal plane (the vertical projector is far from the base, the center moves upward, and the stability decreases), rotating the rotating ring causes the retraction slide to push the retraction slider towards the outer edge of the rotating ring. The retraction slider pushes the stabilizing plate out of the storage slot through the connecting rod. This increases the area of ​​the base, improves the stability of the device placement, and the larger base area is also more conducive to the use of the device in soft placement areas.

[0023] Furthermore, the weight of the stabilizing plate is greater than the weight of the connecting parts, so the base mainly relies on the counterweight of the stabilizing plate to maintain stability. When the stabilizing plate extends outward, it can further lower the overall center of gravity of the equipment and maintain stability.

[0024] Furthermore, a balance groove is provided on the side of the stabilizing plate near the connecting rod. A balance slider is slidably connected inside the balance groove. One end of the connecting rod is fixedly connected to the take-up slider, and the other end is fixedly connected to the balance slider. The take-up groove is fan-shaped. In this way, the edge of the stabilizing plate can slide on the outer periphery of the base with the connecting rod as the support point. However, since the placement area is too soft and the support force is uneven, the pressure state of the base is adjusted by deflecting the stabilizing plate to maintain balance.

[0025] Furthermore, a toggle bar is fixedly connected to the bottom of the rotary knob, and a circular array of grip openings is provided at the bottom of the rotary ring. The grip openings are designed to be deeper in the clockwise direction and shallower in the counterclockwise direction, which facilitates the rotation of the rotary knob and the rotary ring.

[0026] 3. Beneficial effects

[0027] Compared with the prior art, the advantages of this invention are:

[0028] 1. This solution, through the combined operation of the projection offset module and the projection scaling module, allows the projector to automatically adjust the position and size of the projected image during startup, avoiding obstructions in the imaging area. This results in a clearer projected image and a better visual experience. The adjustment process is automatic, requiring no manual intervention, making the projector more convenient to use. Furthermore, the grid division module divides the projected image into regions, clearly indicating the location of obstructions and the required adjustment distance. This not only makes the adjustment process faster and smoother, reducing the number of trial and error attempts, but also maximizes the projected image while avoiding obstructions, preserving the best visual effect.

[0029] 2. The obstacle analysis module analyzes the specific location of obstructions in the grid network and sets the optimal avoidance route for the projection offset module and projection scaling module. This minimizes the adjustment range of the projected image, making it match the original imaging area as closely as possible, preserving the best viewing angle, and improving the overall viewing experience.

[0030] 3. When projecting onto a vertical surface (wall, door, furniture) using the connector and base, ensure the projector is parallel to the base and connector (with the bottom surfaces of the base and connector in contact). The wide base provides stability. For horizontal surfaces (roof, floor), rotate the knob to disengage the fixing rod from the fixing slot, unlocking the connector from the base. Slide the base and direction adjustment slider along the direction adjustment groove to the other end (with the back of the base in contact with the connector). Rotate the knob again to re-engage the fixing rod into the fixing slot, securing the connector and base once more. The projector remains parallel to the connector, but perpendicular to the base. This ensures the base remains horizontally stable, while the projector is vertical for projection. This allows for more projection options, a wider range of applications, and greater stability. The wide base also increases the contact area between the projector and the placement area. When placed on a soft surface like a bed or sofa, the base distributes weight, ensuring stable placement.

[0031] 4. The adjustment mechanism also includes a distance adjustment groove on the inner surface of the bottom edge of the connector. A distance adjustment slider is fixedly connected to the bottom of the base. The distance adjustment slider is slidably connected in the distance adjustment groove. When projecting horizontally, the connector is perpendicular to the base (horizontal plane). By cooperating with the distance adjustment groove and the distance adjustment slider, the projector can be slid upward along the bottom edge of the connector, moving the projector away from the base. This allows for more space behind the projector, facilitating the switching on and off of the projector and wiring.

[0032] 5. By vertically stabilizing the base, when projecting onto a horizontal surface (the vertical projector is far from the base, the center moves upward, and the stability decreases), rotating the rotating ring causes the retraction slide to push the retraction slider to the outer edge of the rotating ring. The retraction slider pushes the stabilizing plate out of the storage slot through the connecting rod. This increases the area of ​​the base, improving the stability of the equipment placement. At the same time, the larger base area is also more conducive to the use of the equipment in soft placement areas.

[0033] 6. The weight of the stabilizing plate is greater than the weight of the connecting parts. Thus, the base mainly relies on the counterweight of the stabilizing plate to maintain stability. When the stabilizing plate extends outward, it can further lower the overall center of gravity of the equipment and maintain stability.

[0034] 7. A balance groove is provided on the side of the stabilizing plate near the connecting rod. A balance slider is slidably connected inside the balance groove. One end of the connecting rod is fixedly connected to the take-up slider, and the other end is fixedly connected to the balance slider. The take-up groove is fan-shaped. In this way, the edge of the stabilizing plate can slide on the outer periphery of the base with the connecting rod as the support point. However, if the placement area is too soft and the support force is uneven, the pressure state of the base can be adjusted by deflecting the stabilizing plate to maintain balance. Attached Figure Description

[0035] Figure 1 This is a block diagram of the present invention;

[0036] Figure 2 This is the image offset map of the present invention;

[0037] Figure 3 This is a scaled-down image of the present invention;

[0038] Figure 4 This is a horizontal projection state diagram of the present invention;

[0039] Figure 5 The following figure illustrates the present invention;

[0040] Figure 6 This is a vertical projection state diagram of the present invention;

[0041] Figure 7 This is a top view of the disassembled invention;

[0042] Figure 8 The image below shows the disassembled parts of the present invention.

[0043] Figure 9 This is a diagram showing the interior of the base of the present invention;

[0044] Figure 10 For the present invention Figure 9 Enlarged view of a portion of the image;

[0045] Figure 11 This is a bottom view of the base of the present invention;

[0046] Figure 12 For the present invention Figure 11 Sectional view;

[0047] Figure 13 This is a diagram showing the unfolded state of the stabilizing plate of the present invention;

[0048] Figure 14 This is a diagram showing the internal structure of the stabilizing plate of the present invention;

[0049] Figure 15 This is a diagram showing the deflection state of the connecting rod according to the present invention.

[0050] Explanation of the labels in the diagram:

[0051] 1. Projector; 11. Ventilation holes; 12. Projection port; 13. Infrared sensor; 14. Camera lens; 2. Base; 3. Connector; 4. Adjustment mechanism; 41. Direction adjustment slide; 42. Fixing slot; 43. Direction adjustment slider; 44. Mounting slot; 45. Rotating knob; 46. Socket; 47. Fixing rod; 48. Distance adjustment slide; 49. Distance adjustment slider; 5. Stabilizing mechanism; 51. Storage slot; 52. Stabilizing plate; 53. Rotating slot; 54. Rotating ring; 55. Movable slot; 56. Retraction slide; 57. Retraction slider; 58. Through slot; 59. Connecting rod; 510. Balancing slide; 511. Balancing slider; 512. Handling port. Detailed Implementation

[0052] This embodiment will be described clearly and completely with reference to the accompanying drawings, making the purpose, technical solution, and beneficial effects of the embodiments of this disclosure clearer. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0053] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the conventional meaning as understood by those skilled in the art. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "above," "below," "inner," and "outer" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] Example:

[0055] Please see Figures 1 to 3 An automatic adjustment method for the projection area of ​​a projector, comprising a projection device, a body stabilization device, a grid division module, an image capture module, an image comparison module, an obstacle analysis module, a projection offset module, and a projection scaling module, the working steps of which include:

[0056] S1. Projection: First, install the projection device on the stable device on the machine body, then align the projection device with the imaging area, turn on the projection device, and the projection device will project the image onto the imaging area.

[0057] The projector has a built-in calibration image, and this image will be used as the startup screen.

[0058] S2, Region Division: The grid division module divides the presented image into neatly arranged small squares according to pixels. The aspect ratio of the small squares is the same as that of the presented image.

[0059] S3 Obstacle Detection: After the image projected by the projection device is focused, the image capture module acquires the projected image information, and the image comparison module compares it with the source data to determine whether there is any obstruction.

[0060] The image capture module automatically starts working the moment the projection device is turned on and the image is projected, and maintains a capture speed of ten frames per second.

[0061] S4. Image Shift: The projection shift module shifts the entire image a corresponding distance in the opposite direction of the obstruction according to the number of grid columns or rows of the obstruction area, thus avoiding the obstruction.

[0062] S5, Image Scaling: When there are multiple unavoidable obstructions around the projected image, the projection scaling module calculates the position of the obstructions using a grid and scales the projected image proportionally to avoid the obstructions.

[0063] When the projection scaling module scales the image, the projection offset module also works together to achieve the best results.

[0064] The obstacle analysis module analyzes the specific location of the obstruction in the grid network and sets the best avoidance route for the projection offset module and the projection scaling module. This minimizes the adjustment range of the projected image, makes it match the original imaging area as much as possible, preserves the best viewing angle, and improves the overall viewing experience.

[0065] By working together with the projection offset module and the projection scaling module, the projector can automatically adjust the position and size of the projected image during startup, avoiding obstructions in the imaging area. This results in a clearer projected image and a better visual experience. Moreover, the adjustment process is automatic, requiring no manual intervention, making the projector more convenient to use. Furthermore, the grid division module divides the projected image into regions, clearly indicating the location of obstructions and the distance that needs to be adjusted. This not only makes the adjustment process faster and smoother, reducing the number of trial and error attempts, but also maximizes the projected image while avoiding obstructions, preserving the best visual effect.

[0066] Please see Figures 4 to 10 The projection device is specifically a projector 1. The projector 1 has ventilation holes 11 on its side, a projection port 12, an infrared sensor 13, and a camera lens 14 on its front, and a power button and data interface on its back. The device's stabilization includes a base 2 and a connector 3. The connector 3 is circular, and its diameter is larger than the length and width of the projector 1. The projector 1, base 2, and connector 3 are assembled together. An adjustment mechanism 4 is provided at the joint of the projector 1, base 2, and connector 3. The connector 3 is L-shaped and has two sides: a bottom side and a back side. The two sides of the connector 3 cover the bottom and back sides of the projector 1, respectively. The adjustment mechanism 4 includes components formed on the outer surfaces of the two sides of the connector 3. The direction adjustment slide 41 has fixed grooves 42 on the bottom walls at both ends. The top of the base 2 is fixedly connected to a direction adjustment slider 43 extending into the direction adjustment slide 41. The direction adjustment slider 43 is slidably connected in the direction adjustment slide 41. The adjustment mechanism 4 also includes an installation groove 44 at the center of the bottom of the base 2. A rotating knob 45 is rotatably connected inside the installation groove 44. The top of the rotating knob 45 has an insertion port 46. A fixed rod 47 is slidably inserted into the inside of the insertion port 46. The other end of the fixed rod 47 passes through the base 2 and the direction adjustment slider 43 and enters the fixed groove 42. The fixed rod 47 is threadedly connected to the direction adjustment slider 43, and the bottom surface of the toggle bar is flush with the bottom surface of the base 2.

[0067] When projecting onto a vertical surface (wall, door, furniture) using the connection 3 and base 2, the projector 1 should be parallel to the base 2 and connection 3 (at this time, the bottom surfaces of the base 2 and connection 3 should be in contact), and placed horizontally. Figure 4As shown, the wide base 2 stabilizes the projector 1. When projecting onto a horizontal surface (roof or floor), rotating the knob 45 disengages the fixing rod 47 from the fixing slot 42, unlocking the connector 3 from the base 2. The base 2 and the direction adjustment slider 43 are then slid along the direction adjustment groove 41 to the other end (at this point, the back of the base 2 and the connector 3 are in contact). Rotating the knob 45 again moves the fixing rod 47 into the fixing slot 42, re-fixing the connector 3 and the base 2. The projector 1 remains parallel to the connector 3, but the projector 1 and connector 3 are perpendicular to the base 2. Figure 6 As shown, the base 2 is still horizontally placed to stabilize the projector 1, while the projector 1 is in a vertical position for projection. This allows the projector 1 to have more projection modes, a wider range of applications, and a more stable projection state. At the same time, the large base 2 can increase the contact area between the projector 1 and the device placement area. When the placement area is a soft bed or sofa, the base 2 will distribute the weight and still allow it to be placed stably.

[0068] The two ends of the orientation adjustment groove 41 extend to the midpoints of the two sides of the connector 3, so that when the projector 1 uses two projection modes, the orientation adjustment slider 43 is always located in the middle of the two sides of the connector 3, making the splicing of the connector 3 and the base 2 more stable. The adjustment mechanism 4 also includes a distance adjustment groove 48 formed on the inner surface of the bottom edge of the connector 3. A distance adjustment slider 49 is fixedly connected to the bottom of the base 2, and the distance adjustment slider 49 is slidably connected in the distance adjustment groove 48. So when projecting in the horizontal direction, the connector 3 is perpendicular to the base 2 (horizontal plane), and the projector 1 can be slid upward along the bottom edge of the connector 3 by the cooperation of the distance adjustment groove 48 and the distance adjustment slider 49. Figure 5 As shown, projector 1 is positioned away from base 2, which allows for more space behind projector 1, making it easier to switch projector 1 on and off and to connect cables.

[0069] Please see Figures 11 to 15The base 2 has a stabilizing mechanism 5 inside. The stabilizing mechanism 5 includes a storage groove 51 and a rotating groove 53 at the bottom of the base 2. The storage groove 51 is arranged in a circular array on the outer edge of the base 2. The rotating groove 53 is sleeved around the mounting groove 44. A rotating ring 54 is rotatably connected inside the rotating groove 53. An array of movable grooves 55 is arranged on the outer side of the rotating ring 54. The position of the movable grooves 55 corresponds to that of the storage grooves 51. A retraction slide 56 is provided on the inner wall of the movable groove 55. The distance difference between the two ends of the retraction slide 56 and the center of the projector 1 is the same as the width of the stabilizing plate 52. The retractable slide 56 has a retractable slider 57 slidably connected inside. A through slot 58 is provided between the rotating slot 53 and the storage slot 51. A distance adjustment slider 49 is provided between the retractable slider 57 and the stabilizing plate 52. By vertically stabilizing plate 52 at the bottom of base 2, when projecting onto a horizontal plane (the vertical projector 1 is away from base 2, the center moves upward, and the stability decreases), rotating the rotating ring 54 causes the retractable slide 56 to push the retractable slider 57 towards the periphery of the rotating ring 54. The retractable slider 57 pushes the stabilizing plate 52 out of the storage slot 51 through the connecting rod 59. Figure 13 As shown, this enlarges the area of ​​the base 2, improving the stability of the device placement. At the same time, the larger base 2 is also more conducive to the use of the device in soft placement areas. The reverse rotating ring 54 can retract the stabilizing plate 52.

[0070] The weight of the stabilizing plate 52 is greater than that of the connector 3. Thus, the base 2 is mainly stabilized by the counterweight of the stabilizing plate 52. When the stabilizing plate 52 extends outward, it can further lower the overall center of gravity of the equipment and maintain stability. The bottom of the rotary knob 45 is fixedly connected to a toggle bar. The bottom of the rotary ring 54 has a circular array of grip openings 512. The grip openings 512 are all designed to be deeper in the clockwise direction and shallower in the counterclockwise direction, which facilitates the rotation of the rotary knob 45 and the rotary ring 54.

[0071] A balancing groove 510 is provided on the side of the stabilizing plate 52 near the connecting rod 59. A balancing slider 511 is slidably connected inside the balancing groove 510. One end of the connecting rod 59 is fixedly connected to the take-up slider 57, and the other end is fixedly connected to the balancing slider 511. The take-up groove 51 is fan-shaped, so the side of the stabilizing plate 52 can slide on the outer periphery of the base 2 with the connecting rod 59 as the support point. However, because the placement area is soft and the support force is uneven, the pressure state of the base 2 can be adjusted by deflecting the stabilizing plate 52. Figure 15 As shown, balance is maintained.

[0072] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A method for automatically adjusting the projection area of ​​a projector, comprising a projection device, a body stabilization device, a grid division module, an image capture module, an image comparison module, an obstacle analysis module, a projection offset module, and a projection scaling module, characterized in that, The work steps include: S1. Projection: First, install the projection device on the stable device on the machine body, then align the projection device with the imaging area, turn on the projection device, and the projection device will project the image onto the imaging area. S2, Region Division: The grid division module divides the presented image into neatly arranged small squares according to pixels; S3 Obstacle Detection: After the image projected by the projection device is focused, the image capture module acquires the projected image information, and the image comparison module compares it with the source data to determine whether there is any obstruction. S4. Image Shift: The projection shift module shifts the entire image a corresponding distance in the opposite direction of the obstruction according to the number of grid columns or rows of the obstructed area, thus avoiding the obstruction. S5, Image Scaling: When there are multiple unavoidable obstructions around the projected image, the projection scaling module calculates the position of the obstructions using a grid and scales the projected image proportionally to avoid the obstructions. The projection device is specifically a projector (1). The side of the projector (1) is provided with heat dissipation holes (11). The front of the projector (1) is provided with a projection port (12), an infrared sensor (13), and a camera lens (14). The back of the projector (1) is provided with a power button and a data interface. The body stabilization device includes a base (2) and a connector (3). The connector (3) is circular, and the diameter of the connector (3) is greater than the length and width of the projector (1). The projector (1), the base (2), and the connector (3) are assembled together. An adjustment mechanism (4) is provided at the splicing point of the projector (1), the base (2), and the connector (3).

2. The automatic adjustment method for the projection area of ​​a projector according to claim 1, characterized in that: The obstacle analysis module analyzes the specific location of the obstruction in the grid network and sets the optimal avoidance route for the projection offset module and the projection scaling module.

3. The automatic adjustment method for the projection area of ​​a projector according to claim 1, characterized in that: When the projection scaling module scales the image, the projection offset module also participates in the operation.

4. The automatic adjustment method for the projection area of ​​a projector according to claim 1, characterized in that: The connector (3) is L-shaped, with its two sides covering the bottom and back surfaces of the projector (1), respectively. The adjustment mechanism (4) includes a direction adjustment groove (41) formed on the outer surface of the two sides of the connector (3). The bottom walls of the direction adjustment groove (41) at both ends are provided with fixing grooves (42). A direction adjustment slider (43) extending into the direction adjustment groove (41) is fixedly connected to the top of the base (2). The direction adjustment slider (43) is slidably connected within the direction adjustment groove (41). The structure (4) also includes a mounting groove (44) at the center of the bottom of the base (2). A rotating knob (45) is rotatably connected inside the mounting groove (44). A socket (46) is provided on the top of the rotating knob (45). A fixing rod (47) is slidably inserted into the socket (46). The other end of the fixing rod (47) passes through the base (2) and the direction adjustment slider (43) and enters the fixing groove (42). The fixing rod (47) is threadedly connected to the direction adjustment slider (43), and the bottom surface of the toggle bar is flush with the bottom surface of the base (2).

5. The automatic adjustment method for the projection area of ​​a projector according to claim 4, characterized in that: The two ends of the direction adjustment groove (41) extend to the midpoints of the two sides of the connector (3).

6. The automatic adjustment method for the projection area of ​​a projector according to claim 4, characterized in that: The adjustment mechanism (4) further includes a distance adjustment groove (48) formed on the inner surface of the bottom edge of the connector (3), and a distance adjustment slider (49) is fixedly connected to the bottom of the base (2), and the distance adjustment slider (49) is slidably connected in the distance adjustment groove (48).

7. The automatic adjustment method for the projection area of ​​a projector according to claim 6, characterized in that: The base (2) is equipped with a stabilizing mechanism (5). The stabilizing mechanism (5) includes a storage groove (51) and a rotating groove (53) at the bottom of the base (2). The storage groove (51) is arranged in a circumferential array on the outer edge of the base (2). The rotating groove (53) is sleeved around the mounting groove (44). A rotating ring (54) is rotatably connected inside the rotating groove (53). An array of movable grooves (55) is arranged on the outer side of the rotating ring (54). The position of 5) corresponds to the storage slot (51). The inner wall of the movable slot (55) is provided with a retraction slide (56). The distance difference between the two ends of the retraction slide (56) and the center of the projector (1) is the same as the width of the stabilizing plate (52). The retraction slide (56) is slidably connected to the inside of the retraction slide (56). A through slot (58) is provided between the rotating slot (53) and the storage slot (51). A distance adjustment slider (49) is provided between the retraction slider (57) and the stabilizing plate (52).

8. The automatic adjustment method for the projection area of ​​a projector according to claim 7, characterized in that: The weight of the stabilizing plate (52) is greater than the weight of the connector (3).

9. The automatic adjustment method for the projection area of ​​a projector according to claim 7, characterized in that: The stabilizing plate (52) has a balance groove (510) on one side near the connecting rod (59). A balance slider (511) is slidably connected inside the balance groove (510). One end of the connecting rod (59) is fixedly connected to the take-up slider (57), and the other end is fixedly connected to the balance slider (511). The storage groove (51) is fan-shaped.

10. The automatic adjustment method for the projection area of ​​a projector according to claim 7, characterized in that: The bottom of the rotary knob (45) is fixedly connected to a toggle bar, and the bottom of the rotary ring (54) is provided with a circular array of grip openings (512). The grip openings (512) are all designed to be deeper in the clockwise direction and shallower in the counterclockwise direction.

Images