CN115206210B - Projection display device of display cabinet and control method - Google Patents
Projection display device of display cabinet and control method Download PDFInfo
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- CN115206210B CN115206210B CN202210848179.0A CN202210848179A CN115206210B CN 115206210 B CN115206210 B CN 115206210B CN 202210848179 A CN202210848179 A CN 202210848179A CN 115206210 B CN115206210 B CN 115206210B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- 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
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Abstract
The invention discloses a display cabinet projection display device and a control method, and relates to the technical field of display projection. In the invention, the following components are added: the projection moving frame capable of moving directionally is arranged on one side of the shielding guide plate, the output side of the telescopic device is connected with the projection moving frame, and the projection moving frame is provided with a projection mechanism and a rotating device for driving the projection mechanism to rotate. And a height monitoring mechanism facing the direction of the display cabinet is fixedly arranged on one side wall plate of the scene. The showcase is provided with a driving screw rod in driving connection with the servo motor. The bottom of the fixed backboard is fixedly provided with a telescopic mechanism and a detection fixing frame positioned at the upper side of the telescopic mechanism. A curtain frame is arranged between the front end of the arc-shaped guide plate and the top end of the fixed backboard. The invention effectively reduces the projection interference of the illuminating lamp on the projection direction, prevents the influence of the surrounding lights of the displayed objects on the front surface of the curtain in the display cabinet, improves the projection playing effect of the object display, and also realizes providing more comfortable projection viewing angles for people with different heights.
Description
Technical Field
The invention relates to the technical field of display projection, in particular to a display cabinet projection display device and a control method.
Background
When the articles are displayed, the articles are placed in the display cabinet, people can only see one article through the display cabinet, and even if the information of the displayed articles is written on the display board beside the display board, few people can see the text information in the display board. This results in a "romantic" look at the items in the display case. In order to improve the watching interest of people, video of the objects in the display cabinet is projected and played above the display cabinet, and the sources, processing, use, advantages and the like of the objects are played and introduced one by one. However, during projection, the illumination light in the scene can cause great influence on projection, and the light is generally configured around the objects in the display cabinet, so that the projection effect of the curtain cloth on the upper side of the display cabinet is poor.
Disclosure of Invention
The invention aims to solve the technical problem of providing a projection display device and a control method for a display cabinet, which effectively reduce projection interference of a lighting lamp on a projection direction, prevent influence of lamplight around a display object in the display cabinet on the front surface of a curtain, improve projection play effect of the display object, and provide more comfortable projection viewing angles for people with different heights.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a projection display device of a display cabinet, which comprises the display cabinet, wherein an illuminating lamp is arranged at the top of a scene where the display cabinet is positioned, a fixed top plate is fixedly arranged at the top of the scene, one side end of the fixed top plate is fixedly connected with a shielding guide plate, a telescopic device is fixedly arranged on the fixed top plate, one side of the shielding guide plate is provided with a projection moving frame which moves directionally, the output side of the telescopic device is connected with the projection moving frame, and the projection moving frame is provided with a projection mechanism and a rotating device for driving the projection mechanism to rotate. The utility model provides a scene one side wallboard fixed mounting has the height monitoring mechanism towards the show cupboard direction, the inside servo motor that is configured with of show cupboard, the show cupboard is configured with the drive screw who is connected with servo motor drive, the show cupboard top is configured with the guide base plate of installing on drive screw, guide base plate one side fixed mounting fixed backplate, fixed backplate bottom fixed mounting has telescopic machanism and is located the detection mount of telescopic machanism upside position, telescopic machanism output side is provided with the arc baffle, install the curtain frame between arc baffle front end and the fixed backplate top, the projection curtain is installed to curtain frame inner periphery, arc baffle upside is provided with one section differential tooth mouth, it is provided with the transmission fluted disc with differential tooth mouth engaged with to survey the mount front end, it has the angle detection module who links to each other with the transmission fluted disc to survey the mount embedment.
As a preferable technical scheme of the projection display device of the display cabinet, the invention comprises the following steps: the telescopic device is internally provided with a distance sensing module for sensing and detecting the lifting position of the projection moving frame, the rotating device is internally provided with an angle coding module for sensing and detecting the rotating angle of the projection mechanism, and the servo motor is internally provided with the angle coding module.
As a preferable technical scheme of the projection display device of the display cabinet, the invention comprises the following steps: the output end of the servo motor comprises an output rotating shaft and a driving gear fixedly arranged on the output rotating shaft, and a driven gear meshed with the driving gear is fixedly arranged at the bottom end of the driving screw.
As a preferable technical scheme of the projection display device of the display cabinet, the invention comprises the following steps: the back side supporting frame is fixedly arranged at the back position of the upper side of the display cabinet, the top end of the driving screw is arranged at the middle position of the top plate of the back side supporting frame through a bearing structure, the guide substrate is provided with a threaded through groove matched with the driving screw, two sides of the guide substrate are fixedly connected with supporting side frames, and the side end of each supporting side frame is provided with a guide through groove matched with the vertical side plate of the back side supporting frame.
As a preferable technical scheme of the projection display device of the display cabinet, the invention comprises the following steps: the top end of the curtain frame is movably connected with the top end of the fixed back plate through a rotating shaft, and the bottom end of the curtain frame is movably connected with the front end of the arc-shaped guide plate through a rotating shaft.
As a preferable technical scheme of the projection display device of the display cabinet, the invention comprises the following steps: the projection direction of the projection mechanism is inclined downwards, and the projection curtain installation direction of the curtain frame is opposite to the projection direction of the projection mechanism.
The invention provides a control method of a projection display device of a display cabinet, which comprises a control system for driving the projection display device, and specifically comprises the following steps:
the first step, the human body enters into the monitoring range of the height monitoring mechanism, the height monitoring mechanism monitors the height of the human body, after a certain time, the control system matches the height parameter of the curtain frame according to the height parameter of the human body, and the control system starts to drive the telescopic device, the rotating device, the servo motor and the telescopic mechanism to act.
And secondly, the servo motor drives the driving screw to rotate, the guide substrate is adjusted to a corresponding height position, the telescopic mechanism drives the arc guide plate to move, and the curtain frame is adjusted to a corresponding inclination angle position.
And thirdly, the telescopic device drives the projection moving frame to move, the projection mechanism is adjusted to a corresponding height position, and the rotating device drives the projection mechanism to rotate, so that the projection mechanism is adjusted to a corresponding inclination angle position.
Wherein, in the adjustment process, the projection direction of projection mechanism keeps perpendicular with the projection curtain plane of curtain frame inner periphery, and the distance between projection mechanism and the projection curtain of curtain frame inner periphery keeps the constant value.
As a preferable technical scheme of the control method, the invention comprises the following steps: the control system is internally preset with a human height parameter set { H } 1 ，H 2 ，...，H n Position parameter set { S } of curtain frame 1 ，S 2 ，...，S n Set of tilt angles { beta } of curtain frame 1 ，β 2 ，...，β n Position parameter set of projection mechanism { W } 1 ，W 2 ，...，W n Set of tilt angles { alpha } of projection mechanism 1 ，α 2 ，...，α n -then:
compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the shielding fixing plate is designed to separate the illuminating lamp from the projection mechanism and the projection direction of the projection mechanism, so that the projection interference of the illuminating lamp on the projection direction is effectively reduced; simultaneously through the curtain frame slope setting with installation projection curtain, can enough cooperate projection mechanism to carry out front vertical projection, avoid projection picture tensile, warp etc. also prevented simultaneously in the show cupboard to be in the positive influence of show article ambient light to the curtain, improved the projection broadcast effect of article show.
2. According to the invention, the height of the human body is monitored through the height monitoring mechanism, the height position and the inclination angle of the projection curtain are controlled and adjusted according to the height of the human body, and meanwhile, the height position and the inclination angle of the projection mechanism are adjusted, so that a more comfortable projection viewing angle is provided for people with different heights.
Drawings
Fig. 1 is a schematic view of the overall structure of the device of the present invention.
Fig. 2 is a partially enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a partially enlarged schematic view of the structure at B in fig. 1.
Fig. 4 is a schematic diagram of the structure of the device for adjusting the device of the present invention.
Fig. 5 is a schematic structural view of a support, adjustment and fixation back plate above a showcase according to the present invention.
Reference numerals illustrate:
1-an illuminating lamp; 2-a showcase; 3-fixing the top plate; 4-shielding guide plates; 5-telescoping means; 6-a projection moving frame; 7-a projection mechanism; 8-rotating means; 9-height monitoring mechanism; 10-a servo motor; 11-driving a screw; 12-guiding the substrate; 13-fixing the backboard; 14-a telescopic mechanism; 15-arc-shaped guide plates; 16-curtain frame; 17-an output spindle; 18-a drive gear; 19-a driven gear; 20-detecting a fixing frame; 21-an angle detection module; 22-a transmission fluted disc; 23-differential tooth opening; 24-a backside support frame; 25-supporting side frames; 26-guiding through grooves; 27-thread through groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1, an illuminating lamp 1 is arranged at the top of a scene, a fixed top plate 3 is fixedly installed at the top of the scene, the fixed top plate 3 is close to an illuminating lamp, a shielding guide plate 4 is connected to the position of the fixed top plate, a telescopic device 5 is fixedly installed at the fixed top plate, a projection moving frame 6 is directionally installed at the shielding guide plate 4, the lower end of a telescopic shaft of the telescopic device 5 is fixedly connected with the projection moving frame 6, the telescopic device 5 drives the projection moving frame 6 to vertically move up and down, a projection mechanism 7 and a rotating device 8 are installed on the projection moving frame 6, the rotating device 8 can drive the projection mechanism 7 to rotate, and the inclination angle of the projection mechanism 7 is adjusted. The height monitoring mechanism 9 faces the display cabinet 2, and when a person stands beside the display cabinet 2, the height monitoring mechanism 9 senses and monitors the height of the person. The display cabinet 2 is internally provided with a servo motor 10, the servo motor 10 can drive a driving screw 11 to rotate, the height positions of a guide substrate 12 and a fixed back plate 13 are adjusted, a telescopic mechanism 14 is fixedly arranged at the bottom end of the fixed back plate 13, the telescopic mechanism 14 drives an arc-shaped guide plate 15 to move, and the inclination angle of a curtain frame 16 is changed.
Referring to fig. 2, fig. 2 is a partially enlarged schematic diagram of fig. 1, in which an output shaft 17 of a servo motor 10 is disposed upward, a driving gear 18 is fixedly mounted on the output shaft 17 of the servo motor 10, a driven gear 19 is fixedly mounted on a lower end of a driving screw 11, and the servo motor 10 drives the driving gear 18, the driven gear 19 and the driving screw 11 to rotate.
Referring to fig. 3, fig. 3 is a partially enlarged schematic structure of fig. 1B, a telescopic mechanism 14 is fixedly mounted at the bottom end of the fixed back plate 13, the telescopic mechanism 14 drives the arc-shaped guide plate 15 to move directionally (the movement path of the arc-shaped guide plate 15 is an arc curve), and a section of differential tooth mouth 23 is formed on the upper side surface of the arc-shaped guide plate 15. The fixed backboard 13 is fixedly provided with a detection fixing frame 20, an angle detection module 21 is arranged in the detection fixing frame 20, the front end of the detection fixing frame 20 is provided with a transmission fluted disc 22, and the transmission fluted disc 22 is in meshed connection with a differential tooth opening 23. The arc-shaped guide plate 15 moves, the transmission fluted disc 22 rotates, and the angle detection module 21 senses and detects the rotation state of the transmission fluted disc 22.
Referring to FIG. 4, the human body height is H 2 The servo motor 10 drives the driving screw 11 to rotate, and the height position of the curtain frame 16 is adjusted to S 2 Adjusting the tilt angle of the curtain frame 16 to beta 2 . At the same time, the telescopic device 5 adjusts the height position of the projection mechanism 7 to W 2 The inclination angle of the projection mechanism 7 is adjusted to alpha 2 . With reference to FIG. 1, when the height of the human body is H 1 (H 1 <H 2 ) In this case, the height position of the curtain frame 16 is S 1 (S 1 <S 2 ) The curtain frame 16 is inclined at an angle β 1 (β 1 >β 2 ) The height position of the projection mechanism 7 is W 1 (W 1 <W 2 ) The inclination angle of the projection mechanism 7 is alpha 1 (α 1 >α 2 )。
Referring to fig. 5, a back side supporting frame 24 is fixedly installed on the upper side of the display cabinet 2, the upper side end of a driving screw 11 is installed at the middle position of the top plate of the back side supporting frame 24 through a bearing structure, a threaded through groove 27 is formed in a guiding base plate 12, the driving screw 11 is in threaded fit with the guiding base plate 12, two sides of the guiding base plate 12 are fixedly connected with supporting side frames 25, a guiding through groove 26 is formed in the side end of the supporting side frames 25, and the supporting side frames 25 are in sliding fit connection with two side plates of the back side supporting frame 24 through the guiding through groove 26.
Example two
In the invention, a human height parameter set { H } is preset in a control system 1 ，H 2 ，...，H n Position parameter set of curtain frame 16 { S } 1 ，S 2 ，...，S n Set of tilt angles { beta } of curtain frame 16 1 ，β 2 ，...，β n Position parameter set of projection mechanism 7 { W } 1 ，W 2 ，...，W n Set of inclination angles { α } of projection mechanism 7 1 ，α 2 ，...，α n After the control system obtains the height parameters of the human body, the height position parameters and the inclination angles of the curtain frame 16 are firstly analyzed and output according to the height of the human body, and after the position of the curtain frame 16 and the inclination angles of the curtain frame are determined, the position and the inclination angles of the projection mechanism 7 are correspondingly adjusted for realizing a better projection effect (the control system pre-stores the geometric relationship between the projection mechanism 7 and the curtain frame 16). The height and angle of the projection curtain are observed through eyes of a human body, the viewing comfort degree of the human body is judged, and the relation between the height parameters of the human body and the height position parameters and the inclination angle parameters of the curtain frame 16 is determined. Thus, the overall correspondence is the following set mapping:
example III
The invention relates to a control method of a projection display device of a display cabinet, which comprises a control system for driving the projection display device, and comprises the following specific contents:
firstly, a human body enters a monitoring range of the height monitoring mechanism 9, the height monitoring mechanism 9 monitors the height of the human body, after a certain time, the control system matches the height parameter of the curtain frame 16 according to the height parameter of the human body, and the control system starts to drive the telescopic device 5, the rotating device 8, the servo motor 10 and the telescopic mechanism 14 to act.
Secondly, the servo motor 10 drives the driving screw 11 to rotate, the guide substrate 12 is adjusted to a corresponding height position, the telescopic mechanism 14 drives the arc-shaped guide plate 15 to move, and the curtain frame 16 is adjusted to a corresponding inclined angle position.
Finally, the telescopic device 5 drives the projection moving frame 6 to move, the projection mechanism 7 is adjusted to a corresponding height position, and the rotating device 8 drives the projection mechanism 7 to rotate, so that the projection mechanism 7 is adjusted to a corresponding inclination angle position. In the adjusting process, the projection direction of the projection mechanism 7 is kept perpendicular to the projection curtain plane of the inner periphery of the curtain frame 16, and the distance between the projection mechanism 7 and the projection curtain of the inner periphery of the curtain frame 16 is kept constant.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a show cupboard projection display device, includes show cupboard (2), and light (1), its characterized in that are disposed at the scene top that show cupboard (2) are located:
the method comprises the following steps that a fixed top plate (3) is fixedly arranged at the top of a scene, one side end of the fixed top plate (3) is fixedly connected with a shielding guide plate (4), a telescopic device (5) is fixedly arranged on the fixed top plate (3), a projection moving frame (6) capable of directionally moving is arranged on one side of the shielding guide plate (4), the output side of the telescopic device (5) is connected with the projection moving frame (6), and a projection mechanism (7) and a rotating device (8) for driving the projection mechanism (7) to rotate are arranged on the projection moving frame (6);
the utility model provides a scene side wall board fixed mounting has height monitoring mechanism (9) towards show cupboard direction, inside configuration of show cupboard (2) has servo motor (10), show cupboard (2) are provided with drive screw (11) that are connected with servo motor (10) drive, show cupboard (2) top configuration has guide base plate (12) of installing on drive screw (11), fixed backplate (13) of fixed baseplate (12) one side fixed mounting, fixed backplate (13) bottom fixed mounting has telescopic machanism (14) and is located detection mount (20) of telescopic machanism (14) upside position, telescopic machanism (14) output side is provided with arc baffle (15), install curtain frame (16) between arc baffle (15) front end and fixed backplate (13) top, the projection curtain is installed to curtain frame (16) inner periphery, the side is provided with one section differential tooth mouth (23) on arc baffle (15), detection mount (20) front end is provided with and surveys fluted disc (22) with differential tooth mouth (23) meshing, detection mount (20) have and detect fluted disc (21) to link to each other with transmission angle module (21);
the projection display device comprises a projection display device, a projection mechanism (7) and a curtain frame (16), wherein the projection mechanism is used for projecting the projection display device, the projection mechanism (7) is used for projecting the projection display device, the curtain frame (16) is used for projecting the projection display device, the projection mechanism (7) is used for projecting the projection display device, the projection display device is used for projecting the projection display device, and the projection display device is used for projecting the projection display device.
2. A display case projection display device according to claim 1, wherein:
the telescopic device (5) is internally provided with a distance sensing module for sensing and detecting the lifting position of the projection movable frame (6), the rotating device (8) is internally provided with an angle coding module for sensing and detecting the rotating angle of the projection mechanism (7), and the servo motor (10) is internally provided with the angle coding module.
3. A display case projection display device according to claim 1, wherein:
the output end of the servo motor (10) comprises an output rotating shaft (17) and a driving gear (18) fixedly arranged on the output rotating shaft (17), and a driven gear (19) meshed with the driving gear (18) is fixedly arranged at the bottom end of the driving screw (11).
4. A display case projection display device according to claim 1, wherein:
the display cabinet is characterized in that a back side supporting frame (24) is fixedly arranged at the upper side of the display cabinet (2), the top end of the driving screw (11) is arranged at the middle position of a top plate of the back side supporting frame (24) through a bearing structure, a threaded through groove (27) matched with the driving screw (11) is formed in the guiding substrate (12), supporting side frames (25) are fixedly connected to two sides of the guiding substrate (12), and guiding through grooves (26) matched with the vertical side plates of the back side supporting frame (24) are formed in the side ends of the supporting side frames (25).
5. A display case projection display device according to claim 1, wherein:
the top end of the curtain frame (16) is movably connected with the top end of the fixed back plate (13) through a rotating shaft, and the bottom end of the curtain frame (16) is movably connected with the front end of the arc-shaped guide plate (15) through a rotating shaft.
6. A display case projection display device according to claim 1, wherein:
the projection direction of the projection mechanism (7) is inclined downwards, and the projection curtain installation direction of the curtain frame (16) is opposite to the projection direction of the projection mechanism (7).
7. A display case projection display device according to claim 1, wherein:
wherein, a human height parameter set { H } is preset in the control system 1 ，H 2 ，...，H n Position parameter set { S } of curtain frame (16) 1 ，S 2 ，...，S n Set of inclination angles { beta } of curtain frame (16) 1 ，β 2 ，...，β n Position parameter set { W } of projection mechanism (7) 1 ，W 2 ，...，W n Inclination angle set { alpha } of projection mechanism (7) 1 ，α 2 ，...，α n -then:
8. a method of controlling a display case projection display device, wherein a display case projection display device according to any one of claims 1 to 7 is used, comprising the steps of:
(1) The human body enters the monitoring range of the height monitoring mechanism (9), the height monitoring mechanism (9) monitors the height of the human body, after a certain time, the control system matches the height parameter of the curtain frame according to the height parameter of the human body, and the control system starts to drive the telescopic device (5), the rotating device (8), the servo motor (10) and the telescopic mechanism (14) to act;
(2) The servo motor (10) drives the driving screw (11) to rotate, the guide substrate (12) is adjusted to a corresponding height position, the telescopic mechanism (14) drives the arc guide plate (15) to move, and the curtain frame (16) is adjusted to a corresponding inclination angle position;
(3) The telescopic device (5) drives the projection moving frame (6) to move, the projection mechanism (7) is adjusted to a corresponding height position, the rotating device (8) drives the projection mechanism (7) to rotate, and the projection mechanism (7) is adjusted to a corresponding inclination angle position;
in the adjusting process, the projection direction of the projection mechanism (7) is kept perpendicular to the projection curtain plane of the inner periphery of the curtain frame (16), and the distance between the projection mechanism (7) and the projection curtain of the inner periphery of the curtain frame (16) is kept constant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210848179.0A CN115206210B (en) | 2022-07-19 | 2022-07-19 | Projection display device of display cabinet and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210848179.0A CN115206210B (en) | 2022-07-19 | 2022-07-19 | Projection display device of display cabinet and control method |
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| WO2021218809A1 (en) * | 2020-04-26 | 2021-11-04 | 青岛海信激光显示股份有限公司 | Projection apparatus |
| CN214202688U (en) * | 2021-01-26 | 2021-09-14 | 山西工程职业学院 | A supplementary multimedia device for psychology teaching |
| CN216697735U (en) * | 2021-11-22 | 2022-06-07 | 贵阳市政建设有限责任公司 | Construction technology meets end display device based on BIM + VR |
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| CN115206210A (en) | 2022-10-18 |
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