High-precision intelligent point reading device

Abstract

The utility model relates to an interactive learning device, in particular to a high-precision intelligent point reading device, which comprises a shell, a through hole arranged on the side wall, a mounting chamber arranged in the shell, an integrated mounting plate and a conical light guide cylinder arranged in the mounting chamber, an infrared camera, a shading support and an infrared LED (light-emitting diode) arranged on the integrated mounting plate, and a camera hole arranged on the shading support and coaxial with the through hole, the infrared camera is arranged towards the camera shooting hole, the more than three infrared LEDs are reversely and uniformly distributed around the shading support along the circumference, the conical light guide cylinder covers the shading support and the infrared LEDs, and gaps are formed between the conical light guide cylinder and the infrared LEDs. The high-precision intelligent point reading device provided by the utility model solves the problem of light spot concentration, and improves the recognition precision of the point reading pen.

Description

Technical Field

[0001] The utility model relates to an interactive learning device, in particular to a high-precision intelligent point reading device. Background Art

[0002] An intelligent point reading device is an intelligent reading and interactive learning tool that combines optical image recognition technology and digital voice technology, and can simultaneously achieve many functions such as point reading, repeating, following, recording, and entertainment. Due to the structural design defects of traditional point reading devices, there are many assembled parts in the window part, and the front light-emitting method is mostly adopted, resulting in problems of low assembly accuracy and concentrated light spots, which affect the recognition accuracy of the point reading pen. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a high-precision intelligent point reading device with improved recognition accuracy.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a high-precision intelligent point reading device, including a housing with through holes provided on the side wall, an installation chamber provided inside the housing, an integrated mounting plate and a conical light guide tube provided in the installation chamber, an infrared camera, a light-shielding bracket and an infrared LED integrated on the integrated mounting plate, a camera hole coaxial with the through hole provided on the light-shielding bracket, the infrared camera being arranged facing the camera hole, more than three infrared LEDs being evenly distributed circumferentially around the light-shielding bracket in the reverse direction, the conical light guide tube covering the light-shielding bracket and the infrared LED, and a gap being provided between the conical light guide tube and the infrared LED.

[0005] Further, a lens is embedded at one end of the camera hole close to the through hole.

[0006] Further, a light guide hole is provided at one end of the conical light guide tube close to the through hole, and the inner diameter of the light guide hole gradually decreases from the end close to the through hole to the end away from the through hole.

[0007] Further, an annular tooth groove is provided on the end face of the conical light guide tube facing the infrared LED.

[0008] Further, the annular tooth groove includes V-shaped teeth arranged along the radial direction of the conical light guide tube.

[0009] Further, the conical light guide tube has a conical mounting hole, and the light-shielding bracket is embedded in the conical mounting hole.

[0010] Further, a support boss is provided on the outer wall of the light-shielding bracket, and the support boss abuts against the side wall of the conical mounting hole.

[0011] Further, a fixing bracket is provided in the installation chamber, and both the integrated mounting plate and the conical light guide tube are arranged on the fixing bracket.

[0012] The beneficial effects of the present utility model are as follows: for the high-precision intelligent point reading device, an integrated mounting plate and a conical light guide tube are designed inside the housing. The infrared camera, light-shielding bracket, and infrared LED are an integrated module assembled in the machine, which greatly enhances the coaxiality between the camera hole and the camera in the light-shielding bracket, reduces the assembly error, enables the infrared camera to better identify through the camera hole, improves the sampling precision. Through the design of the optical structure of the conical light guide tube, the infrared light on the front is evenly propagated in the light guide tube and then diverges from the side of the light guide tube to the outer surface of the lens, which not only plays a role in supplementary lighting but also improves the problem of concentrated light spots. By arranging three or more infrared LEDs on the mounting plate and increasing the gap between the infrared LEDs and the conical light guide tube, while ensuring the total brightness and power consumption, the formation of light spots is further reduced. The light is blocked by the light-shielding bracket, thus ensuring the working performance of the infrared camera. The high-precision intelligent point reading device provided by the present utility model improves the recognition accuracy of the point reading device by improving the assembly accuracy and the problem of concentrated light spots. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a high-precision intelligent point reading device;

[0014] Figure 2 It is another schematic structural diagram of a high-precision intelligent point reading device;

[0015] Label Description:

[0016] 1. Housing; 11. Through hole; 12. Installation chamber; 2. Integrated mounting plate; 21. Infrared camera; 22. Light-shielding bracket; 221. Camera hole; 222. Lens; 223. Support boss; 23. Infrared LED; 3. Conical light guide tube; 31. Light guide hole; 32. Ring-shaped tooth groove; 33. Conical mounting hole; 4. Fixed bracket. Detailed Embodiment

[0017] To describe in detail the technical content, achieved purpose, and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the drawings.

[0018] The present utility model provides a high-precision intelligent point reading device, which is applied to intelligent interactive learning tools.

[0019] Please refer to Figures 1 to 2As shown in the figure, the high-precision intelligent point-reading device of the present utility model includes a housing 1 with through holes 11 provided on its side wall. Inside the housing 1, there is an installation chamber 12. An integrated mounting plate 2 and a conical light guide tube 3 are provided in the installation chamber 12. An infrared camera 21, a light-shielding bracket 22, and an infrared LED 23 are integrated on the integrated mounting plate 2. The light-shielding bracket 22 is provided with a camera hole 221 coaxial with the through hole 11. The infrared camera 21 is arranged facing the camera hole 221. More than three infrared LEDs 23 are evenly distributed along the circumference around the light-shielding bracket 22 in the reverse direction. The conical light guide tube 3 covers the light-shielding bracket 22 and the infrared LEDs 23, and there is a gap between the conical light guide tube 3 and the infrared LEDs 23.

[0020] As can be seen from the above description, the beneficial effects of the present utility model are as follows: For the high-precision intelligent point-reading device, an integrated mounting plate and a conical light guide tube are designed inside the housing. The infrared camera, the light-shielding bracket, and the infrared LED are an integrated module for machine assembly, which greatly enhances the coaxiality between the camera hole in the light-shielding bracket and the camera, reduces the assembly error, enables the infrared camera to better identify through the camera hole, improves the sampling precision. Through the optical structure design of the conical light guide tube, the infrared light on the front side is evenly propagated inside the light guide tube and then diverges from the side of the light guide tube to the outer surface of the lens, which not only plays a role in supplementary lighting but also improves the problem of concentrated light spots. By arranging three or more infrared LEDs on the mounting plate and increasing the gap between the conical light guide tube, while not reducing the total brightness and ensuring power consumption, the formation of light spots is further reduced. By blocking light through the light-shielding bracket, the working performance of the infrared camera is ensured. The high-precision intelligent point-reading device provided by the present utility model improves the recognition accuracy of the point-reading device by improving the assembly accuracy and the problem of concentrated light spots.

[0021] In an optional embodiment, a lens 222 is embedded at one end of the camera hole 221 close to the through hole 11.

[0022] As can be seen from the above description, through optical design, the light guide column makes the light evenly hit the outer surface of the lens 222 without hitting the inside of the sleeve and causing light reflection.

[0023] In an optional embodiment, a light guide hole 31 is provided at one end of the conical light guide tube 3 close to the through hole 11, and the inner diameter of the light guide hole 31 gradually decreases from the end close to the through hole 11 to the end far from the through hole 11.

[0024] As can be seen from the above description, the side wall of the light guide hole 31, which is the light-emitting surface, is designed with an outward-expanding structure to facilitate the refraction of light to the outer surface of the lens 222.

[0025] In an optional embodiment, an annular tooth groove 32 is provided on the end face of the conical light guide tube 3 facing the infrared LED 23.

[0026] As can be seen from the above description, the function of the annular tooth groove 32 is to disperse the light center point, weaken the central light intensity, and avoid overexposure.

[0027] In an alternative embodiment, the annular tooth groove 32 includes V-shaped teeth arranged radially along the conical light guide tube 3.

[0028] In an alternative embodiment, the conical light guide tube 3 has a conical mounting hole 33, and the light shielding bracket 22 is embedded in the conical mounting hole 33.

[0029] As can be seen from the above description, the conical mounting hole 33 is beneficial to improving the assembly stability of the light shielding bracket 22.

[0030] In an alternative embodiment, the outer wall of the light shielding bracket 22 is provided with a support boss 223, and the support boss 223 abuts against the side wall of the conical mounting hole 33.

[0031] In an alternative embodiment, a fixing bracket 4 is provided in the installation chamber 12, and both the integrated mounting plate 2 and the conical light guide tube 3 are arranged on the fixing bracket 4.

[0032] Please refer to Figures 1 to 2 As shown in the figure, Embodiment 1 of the present invention is a high-precision intelligent point reading device, which includes a housing 1 with a through hole 11 provided on the side wall. An installation chamber 12 is provided inside the housing 1. An integrated mounting plate 2 and a conical light guide tube 3 are provided in the installation chamber 12. An infrared camera 21, a light shielding bracket 22, and an infrared LED 23 are integrated on the integrated mounting plate 2. The integrated mounting plate 2 and the light shielding bracket 22 are integrally formed with good stability. The light shielding bracket 22 is provided with a camera hole 221 coaxial with the through hole 11, and the infrared camera 21 is arranged facing the camera hole 221. More than three infrared LEDs 23 are evenly distributed circumferentially around the light shielding bracket 22 in a reverse direction. The conical light guide tube 3 covers the light shielding bracket 22 and the infrared LEDs 23, and there is a gap between the conical light guide tube 3 and the infrared LEDs 23.

[0033] A lens 222 is embedded at one end of the camera hole 221 close to the through hole 11. One end of the conical light guide tube 3 close to the through hole 11 is provided with a light guide hole 31, and the inner diameter of the light guide hole 31 gradually decreases from the end close to the through hole 11 to the end away from the through hole 11. The end face of the conical light guide tube 3 facing the infrared LEDs 23 is provided with an annular tooth groove 32. The annular tooth groove 32 includes V-shaped teeth arranged radially along the conical light guide tube 3. The conical light guide tube 3 has a conical mounting hole 33, and the light shielding bracket 22 is embedded in the conical mounting hole 33. The outer wall of the light shielding bracket 22 is provided with a support boss 223, and the support boss 223 abuts against the side wall of the conical mounting hole 33. A fixing bracket 4 is provided in the installation chamber 12, and both the integrated mounting plate 2 and the conical light guide tube 3 are arranged on the fixing bracket 4.

[0034] In summary, the high-precision intelligent point-reading device of the present utility model designs an integrated mounting plate and a conical light guide tube inside the housing. The infrared camera, the light-shielding bracket, and the infrared LED are an integrated module assembled by the machine, which greatly enhances the coaxiality between the camera hole and the camera in the light-shielding bracket, reduces the assembly error, enables the infrared camera to better identify through the camera hole, improves the sampling precision. Through the design of the optical structure of the conical light guide tube, the infrared light on the front is evenly propagated in the light guide tube and then diverges from the side of the light guide tube to the outer surface of the lens, which not only plays a role in supplementary lighting but also improves the problem of concentrated light spots. By arranging three or more infrared LEDs on the mounting plate and increasing the gap between the infrared LEDs and the conical light guide tube, further reducing the formation of light spots while ensuring the power consumption without reducing the total brightness. The light is blocked by the light-shielding bracket to ensure the working performance of the infrared camera. The high-precision intelligent point-reading device provided by the present utility model improves the recognition accuracy of the point-reading device by improving the assembly accuracy and the problem of concentrated light spots.

[0035] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. High-precision intelligent point reading device, characterized in that: It includes a shell, a side wall is provided with a through hole, an installation room is provided inside the shell, an integrated installation plate and a conical light guide tube are provided in the installation room, an infrared camera, a light-shielding bracket and an infrared LED are integrated on the integrated installation plate, the light-shielding bracket is provided with a camera hole coaxial with the through hole, the infrared camera is arranged toward the camera hole, more than three infrared LEDs are evenly distributed in reverse directions around the light-shielding bracket along the circumference, the conical light guide tube cover is arranged outside the light-shielding bracket and the infrared LED, and there is a gap between the conical light guide tube and the infrared LED.

2. The high-precision intelligent point-reading device according to claim 1, characterized in that: A lens is embedded at one end of the camera hole close to the through hole.

3. The high-precision intelligent point-reading device according to claim 1, characterized in that: A light guide hole is arranged at one end of the tapered light guide cylinder close to the through hole, and the inner diameter of the light guide hole gradually decreases from the end close to the through hole to the end far away from the through hole.

4. The high-precision intelligent point-reading device according to claim 1, characterized in that: An annular tooth groove is arranged on the end surface of the conical light guide tube facing the infrared LED.

5. The high-precision intelligent point-reading device according to claim 4, characterized in that: The annular tooth groove comprises V-shaped teeth arranged along the radial direction of the conical light guide tube.

6. The high-precision intelligent point-reading device according to claim 1, characterized in that: The conical light guide tube is provided with a conical mounting hole, and the light shielding bracket is embedded in the conical mounting hole.

7. The high-precision intelligent point-reading device according to claim 6, characterized in that: The outer wall of the light-shielding bracket is provided with a supporting boss, and the supporting boss abuts against the side wall of the conical mounting hole.

8. The high-precision intelligent point-reading device according to claim 1, characterized in that: A fixed bracket is arranged in the installation room, and the integrated installation plate and the conical light guide tube are both arranged on the fixed bracket.

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