A high-speed scanning multi-wavelength laser radar device

Abstract

The utility model discloses a high-speed scanning multi-wavelength laser radar device, including an outer shell and a light-transmitting plate fixedly embedded on the top thereof, a laser light board is arranged inside the outer shell, two layers of lens boards are arranged above the laser light board, concave lenses and convex lenses are fixedly arranged on the two layers of lens boards distributed up and down, respectively, micro-servos are arranged below the lens boards, the laser spotlight of the laser light board is located below the convex lens and the concave lens, and the light of the laser spotlight is switched between the three modes of focusing, flat projection and scattering by controlling the micro-servo, which effectively expands the application scenarios of the radar and improves the versatility and convenience of the product.

Description

Technical Field

[0001] The utility model relates to the field of optical equipment, in particular to a high-speed scanning multi-wavelength laser radar device. Background Art

[0002] The high-speed scanning multi-wavelength laser radar device is an advanced device that combines high-speed scanning technology and multi-wavelength laser radar technology. The high-speed scanning technology allows the device to complete a large amount of scanning work in a very short time, greatly improving the scanning efficiency. The multi-wavelength laser radar technology enables the device to use lasers of different wavelengths for detection, thereby obtaining richer information.

[0003] In the prior art, the laser beam in the lidar can only perform parallel irradiation scanning. When a wider scanning area is required, a larger radar model can only be replaced. The beam cannot achieve scattered scanning. At the same time, when the object to be scanned requires stronger scanning performance, the beam cannot achieve focused scanning to enhance the scanning intensity. Utility Model Content

[0004] The purpose of the utility model is to solve any one of the problems in the above-mentioned technologies, thereby proposing a high-speed scanning multi-wavelength laser radar device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-speed scanning multi-wavelength laser radar device, including an outer shell and a light-transmitting plate fixed on the top thereof, a laser light board is arranged inside the outer shell, two layers of lens boards are arranged above the laser light board, concave lenses and convex lenses are fixedly arranged on the two layers of lens boards distributed up and down, respectively, a micro-servo is arranged under the lens board, and the laser spotlight of the laser light board is located under the convex lens and the concave lens.

[0006] Furthermore, the outer shell is round in shape, and a step-shaped top snap-in is provided on the top of the inner wall of the outer shell. The light-transmitting plate is embedded and fixed in the top snap-in, and two layers of circular groove-shaped rotating grooves distributed up and down are provided below the top snap-in. The lens plate is rotatably arranged in the rotating groove, and fixed snap-ins are provided on both sides below the rotating groove of each layer. The fixing rod is embedded and fixed in the fixed snap-in, and a circular groove-shaped embedding groove is provided on the side wall at the bottom of the inner wall of the outer shell. The laser light board is embedded and fixed in the embedding groove, and the central control board is fixedly arranged at the bottom of the outer shell barrel below the laser light board.

[0007] Furthermore, the main body of the lens plate is a lens plate surface with hexagonal equidistant forked ribs in the center of the outer circular ring, a penetrating round-headed slot-shaped lens port is arranged in the center of the ribs of the lens plate surface, a connecting sleeve is arranged in the center of the bottom surface of the lens plate surface, and the connecting sleeve is fixedly mounted on the output shaft of the micro-servo engine, a concave lens is embedded and fixed in the lens port of the upper lens plate, and a convex lens is embedded and fixed in the lens port of the lower lens plate.

[0008] Furthermore, the main body of the laser light board is a light board surface with a circular outer ring at the center and hexagonal equidistant forked ribs, and two laser spotlights are staggered front and back on each rib of the light board surface.

[0009] Furthermore, side clamping strips are arranged on both sides of the fixing rod, the side clamping strips are embedded and fixed in the fixing bayonet, the center of the fixing rod is the fixing bayonet 2, and the micro-servo engine is embedded and fixed in the fixing bayonet 2 of the fixing rod.

[0010] Furthermore, the micro-servo and the laser light board are connected to the central control board through an electric control circuit.

[0011] The beneficial effect of the utility model is that the laser spotlight of the laser light board is located below the convex lens of the lens board and the concave lens of the lens board. When the micro-servo rotates, the convex lens and the concave lens of the lens board can be deviated from the top of the laser spotlight. By controlling the micro-servo, the light of the laser spotlight can be switched between the three modes of focusing, flat shooting and scattering, which effectively expands the application scenarios of the radar and improves the versatility and convenience of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model as a whole;

[0013] Figure 2 It is a structural schematic diagram of the housing of the utility model;

[0014] Figure 3 It is a cross-sectional view of the housing of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the laser light board of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the lens plate of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the fixing rod of the utility model;

[0018] Figure 7 The figure is a schematic diagram of the optical path of the laser spotlight of the present utility model.

[0019] exist Figures 1 to 7 , the correspondence between the component names or lines and the figure numbers is: shell 1, top bayonet 11, rotating slot 12, fixed bayonet 13, embedded slot 14, light-transmitting plate 2, central control board 3, laser light board 4, light board surface 41, laser spotlight 42, lens board 5, lens board surface 51, lens port 52, connecting sleeve 53, fixing rod 6, side clamping strip 61, fixing bayonet 2 62, micro servo 7, convex lens 8, concave lens 9. DETAILED DESCRIPTION

[0020] Please refer to Figures 1 to 7 ;

[0021] The present embodiment provides a high-speed scanning multi-wavelength laser radar device, including a shell 1 and a light-transmitting plate 2 fixed on the top thereof, a laser light board 4 is arranged inside the shell 1, two layers of lens boards 5 are arranged above the laser light board 4, concave lenses 9 and convex lenses 8 are fixedly arranged on the two layers of lens boards 5 distributed up and down, respectively, a micro-servo 7 is arranged under the lens boards 5, and the laser spotlight 42 of the laser light board 4 is located under the convex lens 8 and the concave lens 9.

[0022] Preferably, the shell 1 is round in shape, and a step-shaped top snap-in slot 11 is provided on the top of the inner wall of the shell 1. The light-transmitting plate 2 is embedded and fixed in the top snap-in slot 11. Two layers of circular groove-shaped rotating slots 12 distributed up and down are provided below the top snap-in slot 11. The lens plate 5 is rotatably embedded in the rotating slot 12, and fixed snap-ins 13 are provided on both sides below the rotating slot 12 of each layer. The fixing rod 6 is embedded and fixed in the fixed snap-in slot 13, and a circular groove-shaped embedding slot 14 is provided on the side wall at the bottom of the inner wall of the shell 1. The laser light board 4 is embedded and fixed in the embedding slot 14, and the central control board 3 is fixedly arranged on the bottom of the shell 1 barrel below the laser light board 4.

[0023] Preferably, the main body of the lens plate 5 is a lens plate surface 51 with a circular outer ring in the center and hexagonal equidistant forked ribs. A penetrating round-headed notch-shaped lens port 52 is provided in the center of the ribs of the lens plate surface 51. A connecting sleeve 53 is provided in the center of the bottom surface of the lens plate surface 51. The connecting sleeve 53 is fixedly mounted on the output shaft of the micro-servo engine 7. A concave lens 9 is embedded and fixed in the lens port 52 of the upper lens plate 5, and a convex lens 8 is embedded and fixed in the lens port 52 of the lower lens plate 5.

[0024] In a specific embodiment, light-transmitting slots are left between the ribs of the lens plate 5, and the micro-servo 7 is rotated to realize switching among three states: only the convex lens 8 is located above the laser spotlight 42 of the laser light board 4, only the concave lens 9 is located above the laser spotlight 42 of the laser light board 4, and both the convex lens 8 and the concave lens 9 are located above the laser spotlight 42 of the laser light board 4.

[0025] Preferably, the main body of the laser light board 4 is a light board surface 41 with a circular outer ring at the center and hexagonal equidistant bifurcated ribs, and two laser spotlights 42 are staggeredly arranged on each rib of the light board surface 41.

[0026] Preferably, side clamping strips 61 are provided on both sides of the fixing rod 6 , the side clamping strips 61 are fixed in the fixing bayonet 13 , the center of the fixing rod 6 is a fixing bayonet 2 62 , and the micro servo 7 is fixed in the fixing bayonet 2 62 of the fixing rod 6 .

[0027] Preferably, the micro-servo engine 7 and the laser light board 4 are both connected to the central control board 3 through an electric control circuit.

[0028] In a specific embodiment, a wireless module and a central control chip are provided on the central control board 3, and the central control board 3 can remotely control the steering of the micro-servo 7 and the start and stop of the laser light board 4 through a matching control program.

[0029] When the utility model is used, when the micro-servo 7 rotates until only the convex lens 8 is located above the laser spotlight 42 of the laser light board 4, the light of the laser spotlight 42 is focused inward, the detection range of the radar is reduced, but the intensity of the detection light is increased, and the light has stronger penetrating power;

[0030] When the micro-servo 7 rotates until only the concave lens 9 is located above the laser spotlight 42 of the laser light board 4, the light of the laser spotlight 42 is diverged outward, the detection range of the radar is enlarged but the density of the detection light is reduced;

[0031] When the micro-servo 7 rotates until the convex lens 8 and the concave lens 9 are both located above the laser spotlight 42 of the laser light board 4, the convex lens 8 and the concave lens 9 synchronously deflect and compensate the light of the laser spotlight 42, and the light of the laser spotlight 42 is still emitted at a parallel angle.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed scanning multi-wavelength laser radar device, comprising a housing (1) and a light-transmitting plate (2) fixedly embedded on the top thereof, wherein a laser light panel (4) is arranged inside the housing (1), and characterized in that: Two layers of lens plates (5) are arranged above the laser light board (4), and concave lenses (9) and convex lenses (8) are fixedly arranged on the two layers of lens plates (5) arranged above and below, respectively. A micro-servo engine (7) is arranged below the lens plates (5), and the laser spotlight (42) of the laser light board (4) is located below the convex lens (8) and the concave lens (9).

2. The high-speed scanning multi-wavelength laser radar device according to claim 1, characterized in that: The shell (1) is round and through-shaped. A stepped top snap-in slot (11) is provided at the top of the inner wall of the shell (1). The light-transmitting plate (2) is snap-fitted and fixed in the top snap-in slot (11). Two layers of circular notch-shaped rotating notches (12) distributed up and down are provided below the top snap-in slot (11). The lens plate (5) is snap-fitted and fixed in the rotating notch (12). Both sides below the rotating notch (12) of each layer are provided with fixed snap-in slots (13). The fixed rod (6) is snap-fitted and fixed in the fixed snap-in slot (13). A circular notch-shaped snap-in slot (14) is provided on the side wall at the bottom of the inner wall of the shell (1). The laser light board (4) is snap-fitted and fixed in the snap-in slot (14). The central control board (3) is fixedly arranged on the bottom of the shell (1) barrel below the laser light board (4).

3. The high-speed scanning multi-wavelength laser radar device according to claim 2, characterized in that: The main body of the lens plate (5) is a lens plate surface (51) with a circular outer ring at the center and hexagonal equidistant bifurcated ribs arranged thereon; a lens opening (52) in the shape of a round head notch penetrating therethrough is arranged at the center of the ribs of the lens plate surface (51); a connecting sleeve (53) is arranged at the center of the bottom surface of the lens plate surface (51); the connecting sleeve (53) is fixedly sleeved on the output shaft of the micro-servo engine (7); a concave lens (9) is fixedly embedded in the lens opening (52) of the upper lens plate (5); and a convex lens (8) is fixedly embedded in the lens opening (52) of the lower lens plate (5).

4. The high-speed scanning multi-wavelength laser radar device according to claim 2, characterized in that: The main body of the laser light board (4) is a light board surface (41) with a circular outer ring at the center and hexagonal equidistant bifurcated ribs arranged thereon, and two laser spotlights (42) are arranged in a staggered manner in front and behind on each rib of the light board surface (41).

5. The high-speed scanning multi-wavelength laser radar device according to claim 2, characterized in that: Side clamping strips (61) are provided on both sides of the fixing rod (6), the side clamping strips (61) are clamped and fixed in the fixing clamping slot (13), the center of the fixing rod (6) is a fixing clamping slot 2 (62), and the micro-servo engine (7) is clamped and fixed in the fixing clamping slot 2 (62) of the fixing rod (6).

6. The high-speed scanning multi-wavelength laser radar device according to claim 2, characterized in that: The micro-servo engine (7) and the laser light panel (4) are both connected to the central control panel (3) via an electric control circuit.

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