Intelligent induction device for projector
By using the sensing adjustment module and angle adaptation module of the intelligent sensing device for projectors, the problem of weak response to dynamic environmental changes is solved, and adaptation to multi-angle projection scenarios is achieved, improving the stability and reliability of the device and meeting the intelligent and interactive needs of modern projectors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YINGZHI TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-05
AI Technical Summary
Existing intelligent sensing devices for projectors have shortcomings in terms of dynamic environment adaptability, multi-scene compatibility, and user interaction experience. In particular, they have weak response capabilities to dynamic environmental changes and are difficult to fully cover the effects of multiple factors such as light intensity and object obstruction. They also lack support for multi-user interaction scenarios.
A smart sensing device for projectors is designed, comprising a sensing adjustment module and an angle adaptation module. The sensing adjustment module consists of an adjustable photosensitive component and a dynamic displacement sensing component. It collects light changes in real time through the photosensitive plate and records position changes through the displacement sensor. The angle adaptation module achieves adaptation for multi-angle projection scenarios through the cooperation of a rotating disk and a fixed bracket. The spring structure of the sliding support provides a buffering effect to improve stability.
It achieves rapid response to dynamic environments, meets the adaptation requirements of multi-angle projection scenarios, improves the stability and reliability of the device, and meets the higher requirements of modern projectors in terms of intelligence and interactivity.
Smart Images
Figure CN224328319U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent electronic equipment technology, specifically an intelligent sensing device for a projector. Background Technology
[0002] In the intelligent application of projectors, intelligent sensing devices are an important component for improving device performance and user experience. Currently, some intelligent sensing devices based on image processing and sensor detection technologies have appeared on the market, but these devices still have certain limitations in terms of dynamic environment adaptability and multi-scenario compatibility. In addition, some devices have high design complexity and insufficient support for diverse needs.
[0003] For example, the Chinese invention patent (publication number: CN116546175B) discloses "An intelligent control method and device for a projector based on automatic sensing." Its specification states that it corrects the projected image using perspective transformation and combines this with a convolutional neural network algorithm to obtain and adjust the feature image of the projected image, thereby achieving a high-resolution projection effect. However, this solution mainly focuses on image resolution and brightness adjustment, exhibiting weak real-time response capabilities to dynamic environmental changes (such as user movement or external interference), and it does not fully consider adaptation issues in multi-angle projection scenarios, thus limiting its applicability in complex scenarios.
[0004] For example, the Chinese invention patent (publication number: CN112351263B) discloses a "projector focusing method and system," which states that by detecting changes in speaker volume and the angle of an attitude sensor, misfocusing caused by excessive sound can be avoided. While this design effectively solves the focusing interference problem under specific conditions, its sensing range is relatively limited, only targeting sound and angle changes, and fails to comprehensively cover other factors that may affect the projection effect (such as light intensity and object obstruction). Furthermore, this solution lacks support for multi-user interaction scenarios, making it difficult to meet the higher requirements of modern projectors in terms of interactivity and intelligence.
[0005] The aforementioned problems indicate that current intelligent sensing devices for projectors on the market still have significant room for improvement in terms of dynamic environment adaptability, multi-scenario compatibility, and user interaction experience. Therefore, this invention provides an intelligent sensing device for projectors to overcome the shortcomings of existing technologies, achieving more precise, intelligent, and efficient projection control functions to meet the needs of diverse application scenarios. Summary of the Invention
[0006] The purpose of this invention is to address the shortcomings of existing intelligent sensing devices for projectors in terms of dynamic environment adaptability, multi-scene compatibility, and user interaction experience. In the prior art, intelligent sensing devices have weak responsiveness to changes in the dynamic environment and struggle to fully cover the effects of multiple factors such as light intensity and object obstruction, while also lacking support for multi-user interaction scenarios.
[0007] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides an intelligent sensing device for a projector, comprising a sensing adjustment module and an angle adaptation module. The sensing adjustment module includes an adjustable photosensitive component and a dynamic displacement sensing component. The angle adaptation module is located inside the sensing adjustment module. Through the coordinated action of the sensing adjustment module and the angle adaptation module, the projector's operating status is adjusted in real time. Fixed supports are provided on both sides of the sensing adjustment module, and sliding support components are provided inside the fixed supports.
[0008] The adjustable photosensitive component includes a photosensitive plate with a plurality of photosensitive units evenly distributed on its surface. A light guide channel is provided between two adjacent photosensitive units, and the inner wall of the light guide channel is coated with a reflective coating. The dynamic displacement sensing component includes a sliding rod with its two ends embedded in the interior of a fixed bracket. A displacement sensor is located in the middle of the sliding rod, and the detection end of the displacement sensor is in contact with the bottom surface of the photosensitive plate. When the projector is running, the photosensitive plate receives external light and converts the light signal into an electrical signal through the photosensitive units. The displacement sensor records data in real time according to the position change of the photosensitive plate, thereby providing dynamic environmental information for the projector.
[0009] As a preferred technical solution of this application, the fixed bracket includes a support, the top of which has two through-holes for connecting the two ends of the sliding rod. The bottom of the support has a threaded hole for fixed connection with the projector body.
[0010] As a preferred technical solution of this application, the sensing adjustment module further includes two limiting blocks fixedly connected to the side of the support. The two limiting blocks are respectively located on both sides of the sliding rod, and the photosensitive plate forms a sliding engagement relationship with the sliding rod through the limiting blocks. An elastic gasket is provided on the inner side of the limiting block, and the thickness of the elastic gasket matches the diameter of the sliding rod to reduce the friction of the sliding rod during movement.
[0011] As a preferred technical solution of this application, the angle adaptation module includes a rotating disk with a central shaft hole and a keyway on the inner wall of the shaft hole for connection with the rotating shaft of the projector. The outer edge of the rotating disk has several positioning holes arranged in a circular array for angle locking with the fixing bracket of the sensing adjustment module.
[0012] As a preferred technical solution of this application, the sliding support includes a slider, the top of which is provided with a boss, which is embedded inside the fixed bracket and forms a sliding connection with the sliding rod. The bottom of the slider is provided with a spring, the other end of which is fixedly connected to the bottom surface of the support, and the direction of the spring force is consistent with the direction of movement of the sliding rod.
[0013] As a preferred technical solution of this application, the surface of the photosensitive plate is provided with a dustproof film, the thickness of the dustproof film is 0.1mm to 0.2mm, and the material of the dustproof film is transparent polyester material, which can effectively block dust particles from adhering to the surface of the photosensitive unit.
[0014] As a preferred technical solution of this application, the support is provided with a guide rail inside, the cross-sectional shape of the guide rail is "T" shaped, the top boss of the slider is embedded in the groove of the guide rail, and the slider moves along the length direction of the guide rail.
[0015] As a preferred technical solution of this application, the bottom surface of the rotating disk is provided with a plurality of magnetic elements, the distribution position of the magnetic elements corresponds to the positioning holes, and the magnetic pole direction of the magnetic elements faces the top surface of the support, which is used to enhance the connection stability between the rotating disk and the fixed bracket.
[0016] Compared with existing technologies, the beneficial effects of this invention are reflected in the following aspects: Through the adjustable photosensitive component and dynamic displacement sensing component, the photosensitive plate can collect information on changes in external light in real time, and record the position changes of the photosensitive plate through a displacement sensor, thereby providing dynamic environmental data for the projector. This design solves the problem of weak response capability of existing sensing devices to dynamic environmental changes. Simultaneously, through the cooperation of the rotating disk of the angle adaptation module and the fixed bracket, it achieves adaptation requirements in multi-angle projection scenarios. Furthermore, the spring structure of the sliding support provides a buffering effect when the photosensitive plate is subjected to external interference, further improving the stability and reliability of the device. The overall design takes into account dynamic environmental adaptability, multi-scene compatibility, and user interaction experience, meeting the higher requirements of modern projectors in terms of intelligence and interactivity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial schematic diagram of the sensing and adjustment module in this utility model;
[0019] Figure 3 This is a structural schematic diagram of the angle adaptation module in this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the fixed bracket in this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Sensing adjustment module; 2. Angle adaptation module; 3. Fixed bracket; 4. Sliding support; 5. Photosensitive plate; 6. Photosensitive unit; 7. Light guide channel; 8. Sliding rod; 9. Displacement sensor; 10. Support; 11. Mounting hole; 12. Threaded hole; 13. Limiting block; 14. Elastic washer; 15. Rotary disk; 16. Shaft hole; 17. Positioning hole; 18. Magnetic element; 19. Slider; 20. Spring; 21. Guide rail. Detailed Implementation
[0023] This utility model relates to an intelligent sensing device for a projector, comprising a sensing adjustment module 1 and an angle adaptation module 2. The sensing adjustment module 1 has fixed supports 3 on both sides, and sliding support members 4 are installed inside the fixed supports 3; together, they constitute the basic structure of the entire device. The core components of the sensing adjustment module 1 are an adjustable photosensitive component and a dynamic displacement sensing component. The adjustable photosensitive component includes a photosensitive plate 5, a photosensitive unit 6, and a light guide channel 7, while the dynamic displacement sensing component consists of a sliding rod 8 and a displacement sensor 9. The angle adaptation module 2 includes a rotating disk 15, which is connected to the projector's rotating shaft through a shaft hole 16 and uses a positioning hole 17 to achieve angle locking. The specific implementation methods and working processes of each component are described in detail below with reference to the accompanying drawings.
[0024] like Figure 1 As shown, the sensing adjustment module 1 and the angle adaptation module 2 are connected by a fixed bracket 3. The top of the support 10 of the fixed bracket 3 has two through-holes 11 for embedding both ends of the sliding rod 8 into the fixed bracket 3. The bottom of the support 10 has a threaded hole 12, through which the fixed bracket 3 can be securely mounted on the projector body. Two limiting blocks 13 are fixedly connected to the side of the fixed bracket 3, located on both sides of the sliding rod 8, to limit the range of movement of the sliding rod 8 and ensure its stability. An elastic pad 14 is provided on the inner side of the limiting block 13. The thickness of the elastic pad 14 matches the diameter of the sliding rod 8, thereby reducing the friction generated by the sliding rod 8 during movement while maintaining its positional accuracy.
[0025] like Figure 2As shown, the photosensitive plate 5 is the core component of the adjustable photosensitive assembly. Its surface is uniformly distributed with several photosensitive units 6, and a light guide channel 7 is provided between adjacent photosensitive units 6. The inner wall of the light guide channel 7 is coated with a reflective coating. When external light shines on the surface of the photosensitive plate 5, the photosensitive units 6 can convert the received light signal into an electrical signal and transmit it through the light guide channel 7. This design enables the photosensitive plate 5 to efficiently collect ambient light information. A displacement sensor 9 is installed in the middle of the sliding rod 8. The detection end of the displacement sensor 9 contacts the bottom surface of the photosensitive plate 5 and is used to record the position change data of the photosensitive plate 5 in real time. When the photosensitive plate 5 is displaced due to external factors, the displacement sensor 9 can convert this change into a digital signal and transmit it to the projector control system, thereby providing dynamic environmental data support for the projector.
[0026] like Figure 3 As shown, the rotating disk 15 of the angle adaptation module 2 has a central shaft hole 16, and the inner wall of the shaft hole 16 has a keyway for connecting with the projector's rotating shaft. The outer edge of the rotating disk 15 has several positioning holes 17 arranged in a circular array for angle locking with the fixed bracket 3. The bottom surface of the rotating disk 15 also has several magnetic elements 18, whose positions correspond to the positioning holes 17, and whose magnetic poles face the top surface of the bracket 10, enhancing the connection stability between the rotating disk 15 and the fixed bracket 3. When the projector angle needs to be adjusted, the user can rotate the rotating disk 15 to select a suitable angle and lock it with the fixed bracket 3 through the positioning holes 17, thus achieving adaptation requirements for multi-angle projection scenarios.
[0027] like Figure 4 As shown, the sliding support 4 includes a slider 19, with a boss at its top. The boss is embedded inside the fixed bracket 3 and forms a sliding connection with the sliding rod 8. A spring 20 is provided at the bottom of the slider 19, with the other end of the spring 20 fixedly connected to the bottom surface of the support 10. The direction of the spring force of the spring 20 is consistent with the direction of movement of the sliding rod 8. When the photosensitive plate 5 is subjected to external interference, causing the sliding rod 8 to shift, the spring 20 can provide a buffering effect, thereby reducing the impact of external interference on the photosensitive plate 5 and improving the stability of the device. A guide rail 21 is provided inside the support 10. The cross-sectional shape of the guide rail 21 is "T". The top boss of the slider 19 is embedded in the groove of the guide rail 21. The slider 19 moves along the length of the guide rail 21, thereby ensuring that the movement trajectory of the sliding support 4 remains stable.
[0028] like Figure 4As shown, the cooperation between the limiting block 13 and the sliding rod 8 further demonstrates the stability design of this utility model. The elastic pad 14 on the inner side of the limiting block 13 not only reduces the friction generated by the sliding rod 8 during movement, but also provides additional protection when the sliding rod 8 is subjected to external impact, preventing the sliding rod 8 from being damaged due to excessive force. In addition, the material and thickness of the elastic pad 14 are carefully designed to effectively balance the flexibility and stability of the sliding rod 8, thereby ensuring that the photosensitive plate 5 can accurately collect light information and transmit it to the projector control system.
[0029] In practical applications, when the projector is running, the photosensitive plate 5 receives external light and converts the light signal into an electrical signal through the photosensitive unit 6. The displacement sensor 9 records data in real time based on the position change of the photosensitive plate 5 and transmits this data to the projector control system. The projector control system adjusts the projected image in real time based on the received data, such as adjusting brightness, contrast, or projection angle to adapt to changes in the dynamic environment. When the user needs to adjust the projector angle, they can select a suitable angle by rotating the rotating disk 15 and locking it to the fixed bracket 3 through the positioning hole 17. At this time, the magnetic element 18 further enhances the connection stability between the rotating disk 15 and the fixed bracket 3, thereby ensuring that the projection effect of the projector remains stable at different angles.
[0030] The surface of the photosensitive plate 5 is covered with a dustproof film, which is 0.1mm to 0.2mm thick and made of transparent polyester material. This film effectively prevents dust particles from adhering to the surface of the photosensitive unit 6. This design not only extends the service life of the photosensitive plate 5 but also improves its reliability in complex environments. When the photosensitive plate 5 is subjected to external interference that causes the sliding rod 8 to shift, the spring 20 of the sliding support 4 provides a buffering effect, thereby reducing the impact of external interference on the photosensitive plate 5 and improving the stability of the device.
[0031] In summary, through the above structural design and close cooperation between components, this utility model can effectively solve the problem of weak response capability of existing intelligent sensing devices to dynamic environmental changes. At the same time, it realizes the adaptation requirements in multi-angle projection scenarios, and improves the stability and reliability of the device through the spring structure of the sliding support, meeting the higher requirements of modern projectors in terms of intelligence and interactivity.
[0032] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.
[0033] In practical applications, when the projector is running, the sensing adjustment module 1 is first securely installed on the projector body using the fixed bracket 3. The threaded hole 12 at the bottom of the support 10 is bolted to the projector body to ensure the stability of the entire device. The two ends of the sliding rod 8 are embedded in the mounting holes 11 at the top of the support 10, and the limiting blocks 13 are located on both sides of the sliding rod 8. The elastic pads 14 on their inner sides are in close contact with the sliding rod 8, thereby reducing friction and ensuring that the movement trajectory of the sliding rod 8 remains accurate. At this time, the photosensitive plate 5 is in its initial position, and the photosensitive units 6 evenly distributed on its surface begin to receive external light signals and transmit the signals to the projector control system through the light guide channel 7.
[0034] When ambient light changes, such as due to user movement or fluctuations in external light intensity, the photosensitive plate 5 will experience slight displacement due to external interference. The displacement sensor 9 in the middle of the sliding rod 8 detects the positional changes of the photosensitive plate 5 in real time and converts the data into electrical signals, which are then transmitted to the projector control system. The projector control system adjusts the brightness and contrast of the projected image based on the received data to adapt to changes in the dynamic environment. Simultaneously, the spring 20 in the sliding support 4 provides a buffering effect, reducing the impact of external interference on the photosensitive plate 5 and ensuring that the photosensitive plate 5 can stably collect light information. The slider 19 moves along the groove of the guide rail 21, and its top boss is embedded in the guide rail 21, ensuring that the movement trajectory of the sliding support 4 remains stable.
[0035] When the projector angle needs to be adjusted, the user can select a suitable angle by rotating the rotating disk 15 of the angle adaptation module 2. The rotating disk 15 is connected to the projector's rotating shaft through the shaft hole 16, and its outer edge positioning hole 17 locks it with the fixed bracket 3, ensuring stability after angle adjustment. Magnetic elements 18 are distributed on the bottom surface of the rotating disk 15, with their magnetic poles facing the top surface of the support 10, further enhancing the connection stability between the rotating disk 15 and the fixed bracket 3. This design enables the projector to maintain a stable projection effect at different angles.
[0036] Furthermore, the dustproof film on the surface of the photosensitive plate 5 effectively prevents dust particles from adhering to the surface of the photosensitive unit 6, extending the service life of the photosensitive plate 5. When the photosensitive plate 5 is subjected to external impact, the elastic pad 14 on the inner side of the limiting block 13 not only reduces the friction of the sliding rod 8, but also provides additional protection for the sliding rod 8, preventing it from being damaged due to excessive force. This design balances the flexibility and stability of the sliding rod 8, ensuring that the photosensitive plate 5 can accurately collect light information and transmit it to the projector control system.
[0037] In summary, through the aforementioned structural design and the close coordination between components, this invention achieves rapid response to dynamic environmental changes, solving the problem of weak response capabilities in existing intelligent sensing devices. Simultaneously, the design of the angle adaptation module 2 meets the needs of multi-angle projection scenarios, and the spring structure of the sliding support 4 enhances the stability and reliability of the device. The overall design balances dynamic environmental adaptability, multi-scenario compatibility, and user interaction experience, meeting the higher requirements of modern projectors in terms of intelligence and interactivity.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smart sensing device for a projector, characterized in that, The system includes a sensing adjustment module (1) and an angle adaptation module (2). The sensing adjustment module (1) has fixed supports (3) on both sides and a sliding support (4) inside the fixed supports (3). The sensing adjustment module (1) includes an adjustable photosensitive component and a dynamic displacement sensing component. The adjustable photosensitive component includes a photosensitive plate (5). Several photosensitive units (6) are evenly distributed on the surface of the photosensitive plate (5). A light guide channel (7) is provided between two adjacent photosensitive units (6). The dynamic displacement sensing component includes a sliding rod (8). A displacement sensor (9) is provided in the middle of the sliding rod (8). The angle adaptation module (2) is located inside the sensing adjustment module (1).
2. The intelligent sensing device for a projector according to claim 1, characterized in that, The fixed bracket (3) includes a support (10), and the top of the support (10) has two through mounting holes (11) for connecting the two ends of the sliding rod (8). The bottom end of the support (10) is provided with a threaded hole (12).
3. The intelligent sensing device for a projector according to claim 1, characterized in that, The sensing adjustment module (1) also includes two limiting blocks (13) fixedly connected to the side of the support (10). The two limiting blocks (13) are located on both sides of the sliding rod (8), and the inner side of the limiting block (13) is provided with an elastic pad (14).
4. The intelligent sensing device for a projector according to claim 1, characterized in that, The angle adaptation module (2) includes a rotating disk (15), the center of which is provided with a shaft hole (16), the inner wall of which is provided with a keyway, and the outer edge of which is provided with a plurality of positioning holes (17).
5. The intelligent sensing device for a projector according to claim 1, characterized in that, The sliding support (4) includes a slider (19), the top of which is provided with a boss, which is embedded in the interior of the fixed bracket (3) and forms a sliding connection with the sliding rod (8). The bottom of the slider (19) is provided with a spring (20), and the other end of the spring (20) is fixedly connected to the bottom surface of the support (10).
6. The intelligent sensing device for a projector according to claim 1, characterized in that, The surface of the photosensitive plate (5) is provided with a dustproof film, the thickness of which is 0.1 mm to 0.2 mm and the material is transparent polyester.
7. The intelligent sensing device for a projector according to claim 2, characterized in that, The support (10) is provided with a guide rail (21) inside. The cross-sectional shape of the guide rail (21) is "T". The top boss of the slider (19) is embedded in the groove of the guide rail (21). The slider (19) moves along the length direction of the guide rail (21).
8. The intelligent sensing device for a projector according to claim 4, characterized in that, The bottom surface of the rotating disk (15) is provided with a number of magnetic elements (18), the distribution position of the magnetic elements (18) corresponds to the positioning hole (17), and the magnetic pole direction of the magnetic elements (18) faces the top surface of the support (10).