Distance measuring device for intelligent mirror

Abstract

The utility model relates to the technical field of intelligent mirror distance measurement, and particularly discloses a distance measurement device for an intelligent mirror. The lens plate is rotatably arranged on the mounting frame, a first lens and a second lens are arranged on the lens plate, and the first lens and the second lens are switched back and forth through rotation of the lens plate; the light source plate is arranged on one side of the lens plate and projects the pattern on the lens plate onto the ground to calibrate the intelligent mirror; according to the distance measuring device for the intelligent mirror, the transverse line on the first lens is projected on the ground, then whether the transverse line projected on the ground coincides with the transverse line on the calibration plate or not is checked, and if not, the angle of the light source plate needs to be adjusted, so that the transverse line projected on the ground coincides with the transverse line on the calibration plate. And after coincidence, the intelligent mirror can be normally used. The problem that distance measurement is inaccurate due to the fact that the position of the light source plate shakes due to collision in the transportation process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of distance measurement for smart mirrors, and in particular to a distance measurement device for smart mirrors. Background Art

[0002] Smart mirror (smart corrective mirror) is a device that assists users in correcting their posture and movements through posture assessment. It can provide static detection function or dynamic detection function in corrective rehabilitation projects. Among them, dynamic detection is posture assessment, which requires users to stand in front of the smart corrective mirror at a specified angle and posture, and make corresponding movements according to the prompts of the smart corrective mirror, so that the system can record and analyze the range of motion of the user's motion joints, and thus provide the evaluation results of the user's posture and rehabilitation effect;

[0003] Due to poor road conditions during transportation of the smart mirror, the smart mirror will vibrate during transportation. As the vibration amplitude of the smart mirror is large or the vibration time is long, it will cause displacement of the distance measuring device in the smart mirror, thereby causing deviations when using the smart mirror to measure distance. Summary of the invention

[0004] The present invention provides a distance measuring device for a smart mirror, aiming to solve the problem in the related art that a large vibration amplitude or a long vibration time of the smart mirror may cause displacement of the distance measuring device in the smart mirror, thereby causing deviation when using the smart mirror for distance measurement.

[0005] The distance measuring device for the smart mirror of the present invention comprises:

[0006] A mounting frame; a lens plate rotatably arranged on the mounting frame, wherein a first lens and a second lens are arranged on the lens plate, and the first lens and the second lens are switched back and forth by rotating the lens plate; a light source plate arranged on one side of the lens plate, and the pattern on the lens plate is projected onto the ground to calibrate the smart mirror; a first telescopic unit and a second telescopic unit are both arranged on the mounting frame to adjust the angle of the light source plate.

[0007] Furthermore, a front baffle is provided on the mounting frame, the front baffle has a through hole, and the lens plate is located on one side of the through hole.

[0008] Furthermore, a fixing frame is provided on the front baffle, a first driving source is provided on the fixing frame, and a first transmission member is provided on the first driving source.

[0009] Furthermore, a second transmission member is disposed on the lens plate, and the second transmission member is meshingly connected with the first transmission member.

[0010] Furthermore, the lens plate is provided with a plurality of mounting holes, and the first lens and the second lens are respectively mounted in the mounting holes.

[0011] Furthermore, it also includes a protection frame, which is installed on the mounting frame through a first connecting shaft, and a second connecting shaft is rotatably connected in the protection frame.

[0012] Furthermore, the second connecting shaft is fixedly connected to the light source board, and the light source board is connected to the protection frame via a first telescopic unit, so as to change the horizontal angle of the light source board.

[0013] Furthermore, the protection frame is further provided with a second telescopic unit, and the second telescopic unit is used to change the up and down angle of the light source panel.

[0014] Furthermore, the first telescopic unit includes a first mounting member and a second mounting member.

[0015] Beneficial effect: Project the horizontal line on the first lens onto the ground, and then check whether the horizontal line projected on the ground coincides with the horizontal line on the calibration board. If not, adjust the angle of the light source board so that the horizontal line projected on the ground coincides with the horizontal line on the calibration board. When they coincide, the smart mirror can be used normally. This solves the problem of the light source board shaking due to collision during transportation, which in turn leads to inaccurate distance measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the mounting frame in the embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the structure of the lens plate in the embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the internal structure of the protection frame in the embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the first telescopic unit in an embodiment of the present invention.

[0020] Figure 5 2 is a schematic diagram of the structure of the second telescopic unit in an embodiment of the present invention.

[0021] Reference numerals:

[0022] 10. Mounting frame; 11. Front baffle; 111. Through hole; 12. Fixing frame; 13. Fixing member; 14. First driving source; 141. First transmission member; 15. Mounting plate;

[0023] 21. lens plate; 211. mounting hole; 212. second transmission member; 22. first lens; 23. second lens; 24. third lens;

[0024] 31. protection frame; 311. first connecting axis; 32. first telescopic unit; 321. first mounting member; 322. second mounting member; 33. light source panel; 331. second connecting axis;

[0025] 41. Second telescopic unit. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] like Figures 1 to 5 As shown, the distance measuring device for a smart mirror of the present invention includes a smart mirror, which can be used to detect the joints of a user, and a mounting frame 10 is installed on the smart mirror, on which a light source board 33 and a lens assembly that can switch lenses back and forth are installed, and a first driving source 14 and a first telescopic unit 32 are also arranged on the mounting frame 10, the first driving source 14 is used to adjust the angle of the light source board 33 in the left and right directions, and the first telescopic unit 32 is used to drive the adjustment of the angle of the light source board 33 in the up and down directions.

[0028] like Figure 1 As shown, a front baffle 11 is detachably mounted on one end of the mounting frame 10 by bolts, and a through hole 111 is provided on the front baffle 11, and the shape of the through hole 111 is rectangular. In one embodiment, the shape of the through hole 111 can also be circular or polygonal, etc. A fixing frame 12 is also fixedly connected to the bottom of the front baffle 11, and a fixing member 13 is fixedly connected to one side of the fixing frame 12, and the shape of the fixing member 13 is arc-shaped, and a first driving source 14 is fixedly connected to the arc-shaped inner surface of the fixing member 13, and the first driving source 14 is a motor, and a first transmission member 141 is fixedly connected to the driving shaft of the first driving source 14, and the first transmission member 141 is a bevel gear. Through the above structure, the first driving source 14 is started, and the first driving source 14 can drive the first transmission member 141 to rotate.

[0029] like Figure 1 and Figure 2 As shown, a lens plate 21 is also provided on one side of the front baffle 11, and a second transmission member 212 is provided on the lens plate 21. It should be noted that one end of the second transmission member 212 is movably connected to the front baffle 11 through a pin shaft, and the other end of the second transmission member 212 is fixedly connected to the lens plate 21 through a short rod. Among them, the second transmission member 212 is a bevel gear, and the second transmission member 212 is meshedly connected with the second transmission member 212. When the first driving source 14 is started, the first driving source 14 drives the first transmission member 141 to rotate, and the first transmission member 141 drives the second transmission member 212 to rotate. The second transmission member 212 drives the lens plate 21 to rotate, so as to realize the function of switching lenses.

[0030] The lens assembly includes a lens plate 21 and a mounting hole 211 provided on the lens plate 21. The mounting hole 211 is fan-shaped, and there are three mounting holes 211. The three mounting holes 211 are arranged equidistantly around the circumference of the lens plate 21. The first lens 22, the second lens 23 and the third lens 24 are fixedly installed in the three mounting holes 211 respectively. Any one of the three lenses is rotated to one side of the through hole 111. Then the first driving source 14 is started. Each time the first driving source 14 works, it drives the lens plate 21 to rotate 90 degrees, so that another lens rotates to one side of the through hole 111, completing the function of lens switching.

[0031] like Figure 3 As shown, a protective frame 31 is also provided inside the mounting frame 10, and a light source board 33 is provided in the protective frame 31. The light source board 33 can emit light to illuminate the lens, and project the pattern of the lens onto the ground. The protective frame 31 is movably connected to the protective frame 31 through a first connecting shaft 311, so that the protective frame 31 can rotate around the first connecting shaft 311. The light source board 33 and the protective frame 31 are connected through a first telescopic unit 32 and a second connecting shaft 331. Specifically, the second connecting shaft 331 is fixed to one side of the light source board 33, and the upper and lower ends of the second connecting shaft 331 are embedded in the protective frame 31, so that the second connecting shaft 331 rotates in the protective frame 31.

[0032] It should be noted that the pattern on the first lens 22 is a horizontal line, and the first lens 22 and the calibration plate are used to calibrate information and correct the smart mirror, wherein the calibration information refers to the mapping relationship between the actual distance and the image distance of the smart mirror, and the calibration information is stored in the smart mirror. The pattern of the second lens 23 is a checkerboard, and the checkerboard is projected onto the object, and the length, width and height of the object are obtained according to the distortion points of the checkerboard on the object and the calibration information (the above is the prior art and will not be repeated here).

[0033] In one embodiment, the calibration plate is placed in front of the smart mirror. Through the cooperation of the first lens 22 and the light source board 33, the horizontal line on the first lens 22 can be projected onto the calibration plate, and then it is checked whether the projected horizontal line coincides with the horizontal line on the calibration plate. If not, the angle of the light source board 33 needs to be adjusted so that the horizontal line projected on the ground coincides with the horizontal line on the calibration board. When they coincide, the smart mirror can be used normally. Through the above steps, the smart mirror can be corrected to avoid the shaking of the position of the light source board caused by collision during transportation, which in turn leads to the problem of inaccurate distance measurement.

[0034] The purpose of distance measurement is to ensure that the user is within the detection range of the smart mirror. For example, the horizontal line on the first lens is projected on the ground to see if the user is on the horizontal line projected on the ground. If the user is on the horizontal line, it means that the smart mirror can normally identify the user's joints. If not, it means that the user is too far or too close to the smart mirror, and the smart mirror cannot normally detect the user's joints.

[0035] like Figure 4 and Figure 5 As shown, the first telescopic unit 32 includes a first mounting member 321 and a second mounting member 322. Specifically, the first telescopic unit 32 is a hydraulic cylinder, and one end of the first telescopic unit 32 is connected to the first mounting member 321 through a hinge shaft, and the other end of the first telescopic unit 32 is connected to the second mounting member 322 through a hinge shaft. The first mounting member 321 is mounted on the protection frame 31 by bolts, and the second mounting member 322 is mounted on the light source board 33 by bolts. Through the mutual cooperation between the first telescopic unit 32 including the first mounting member 321 and the second mounting member 322, the first telescopic unit 32 can push the light source board 33 to rotate around the second connecting shaft 331, and adjust the angle of the light source board 33 laterally.

[0036] In addition, a mounting plate 15 is fixedly connected to the rear side of the mounting frame 10, and a second telescopic unit 41 is mounted on the mounting plate 15. The second telescopic unit 41 has the same structure as the first telescopic unit 32, and one end of the second telescopic unit 41 is connected to the rear side of the protection frame 31, and the other end of the second telescopic unit 41 is connected to the mounting plate 15. The first telescopic unit 32 can be used to adjust the angle of the protection frame 31 in the up-down direction, thereby adjusting the angle of the light source board 33 in the up-down direction.

[0037] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A distance measuring device for a smart mirror, characterized in that: include: Mounting frame (10); A lens plate (21) is rotatably arranged on the mounting frame (10), wherein a first lens (22) and a second lens (23) are arranged on the lens plate (21), and the first lens (22) and the second lens (23) are switched back and forth by rotating the lens plate (21); A light source plate (33) is arranged on one side of the lens plate (21) and projects the pattern on the lens plate (21) onto the ground to calibrate the smart mirror; The first telescopic unit (32) and the second telescopic unit (41) are both arranged on the mounting frame (10) and are used to adjust the angle of the light source panel (33).

2. The distance measuring device for smart mirror according to claim 1, characterized in that: The mounting frame (10) is provided with a front baffle (11), the front baffle (11) having a through hole (111), and the lens plate (21) is located on one side of the through hole (111).

3. The distance measuring device for smart mirror according to claim 2, characterized in that: A fixing frame (12) is provided on the front baffle (11), a first driving source (14) is provided on the fixing frame (12), and a first transmission member (141) is provided on the first driving source (14).

4. The distance measuring device for smart mirror according to claim 3, characterized in that: A second transmission member (212) is provided on the lens plate (21), and the second transmission member (212) is meshingly connected to the first transmission member (141).

5. The distance measuring device for smart mirror according to claim 1, characterized in that: The lens plate (21) is provided with a plurality of mounting holes (211), and the first lens (22) and the second lens (23) are respectively mounted in the mounting holes (211).

6. The distance measuring device for smart mirror according to claim 1, characterized in that: It also comprises a protection frame (31), wherein the protection frame (31) is mounted on the mounting frame (10) via a first connecting shaft (311), and a second connecting shaft (331) is rotatably connected to the protection frame (31).

7. The distance measuring device for smart mirror according to claim 6, characterized in that: The second connecting shaft (331) is fixedly connected to the light source panel (33), and the light source panel (33) is connected to the protection frame (31) via a first telescopic unit (32) for changing the horizontal angle of the light source panel (33).

8. The distance measuring device for smart mirror according to claim 6, characterized in that: The protection frame (31) is further provided with a second telescopic unit (41), and the second telescopic unit (41) is used to change the up and down angle of the light source panel (33).

9. The distance measuring device for smart mirror according to claim 7, characterized in that: The first telescopic unit (32) comprises a first mounting member (321) and a second mounting member (322).

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