Laser radar high-precision height measuring device

Abstract

The invention relates to the technical field of laser measurement, and mainly relates to a laser radar high-precision height measurement device which comprises a butt joint hoop in butt joint with a support and further comprises an outer frame, the top of the outer frame is fixed to the butt joint hoop, a laser radar body is installed in the outer frame, moving openings are formed in the two sides of the outer frame, and moving rods are slidably inserted in the moving openings. The laser radar comprises a moving rod and a driving part in butt joint with the outer end of the moving rod, the driving part drives the moving rod to rotate, the outer side of the moving rod is provided with a traveling part moving on a moving opening, the outer side of the moving rod is provided with a sponge column, and the sponge column moves along the moving opening through the moving rod. By designing the driving part and the sponge column on the shell, the outer side of the laser radar can be wiped, the wiping part is matched, the wiped sponge column can be cleaned, manual wiping is not needed, the time needed by wiping is short, road closing is not needed, and the detection efficiency of the laser radar is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser measurement, and in particular to a high-precision height measuring device of a laser radar. Background Art

[0002] LiDAR is an active remote sensing technology that uses laser beams to detect the distance, angle, reflectivity and other information of target objects. It calculates the distance between the target object and the LiDAR by emitting laser pulses and measuring the time from the emission to the reception of the laser pulses. At the same time, it combines the scanning angle information of the LiDAR to construct the three-dimensional spatial information of the target object.

[0003] At present, in areas where the length, width and height of vehicles are measured, laser pulses are usually generated by a laser radar installed on a bracket to measure the passing vehicles. This can quickly and effectively measure the length, width and height of vehicles. It is installed in front of some highway exits and viaducts, but because it is installed in the open air and most of it is used to measure large vehicles, the vehicles will carry a lot of dust after driving, which will adhere to the outside of the laser radar. The accumulation of dust will cause the outside of the laser radar to be too dirty, and personnel need to wipe it. The bracket is high, and each wiping requires the use of tools and takes a long time. At the same time, the intersection needs to be temporarily closed, which is inconvenient for passing vehicles. Summary of the invention

[0004] The purpose of the present invention is to provide a high-precision laser radar height measurement device to solve the problem raised in the above-mentioned background technology that the external dirtiness rate of traditional laser radars located at high places is too high, which requires personnel to clean, which is troublesome and requires road closure.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser radar high-precision height measuring device, comprising a docking hoop connected to a bracket, and also comprising an outer frame, the top of the outer frame is fixed to the docking hoop, and a laser radar body is installed in the outer frame, moving openings are opened on both sides of the outer frame, and a moving rod is slidably inserted in the moving opening, and a driving part connected to the outer end of the moving rod, the moving rod is driven to rotate by the driving part, a traveling part that moves on the moving opening is installed on the outer side of the moving rod, a sponge column is installed on the outer side of the moving rod, the moving rod moves along the moving opening to drive the sponge column to wipe the outer side of the laser radar body, and a cleaning component fixed on the outer frame is used to squeeze and clean the outer side of the sponge column.

[0006] Preferably, the driving part includes a driving motor, the output end of the driving motor is fixed to the outer end of the moving rod through a coupling, a motor seat is fixed on the driving motor, and rollers are rotatably installed on the motor seat, and a track plate consistent with the moving trajectory of the moving port is fixed on the outside of the outer frame.

[0007] Preferably, the traveling member includes a traveling wheel fixed on the outside of the moving rod, a traveling plate consistent with the moving trajectory of the moving port is fixed on the inside of the outer frame, the traveling wheel is fitted to the outside of the traveling plate, and the fitting surfaces of the two are frosted surfaces.

[0008] Preferably, the cleaning component includes two cleaning pipes fixed on the outer frame, the two cleaning pipes are provided with water spray holes, and the outer ends of the cleaning pipes are fixedly connected to hoses, reciprocating threaded grooves are provided on the outer sides of both ends of the moving rod, and extrusion plates are threadedly sleeved on both ends of the moving rod, an abutment bar is fixed on the inner side of the outer frame, an installation groove is provided on the extrusion plate, and an abutment part matching the abutment bar is installed in the extrusion plate.

[0009] Preferably, the abutting part includes a docking shaft rotatably installed in the mounting groove, an abutting plate is fixed on the outside of the docking shaft, an arc rod fixed to the mounting groove is slidably inserted in the abutting plate, and an arc spring is sleeved on the outside of the arc rod, and the abutting plate is pushed outward by the arc spring.

[0010] Preferably, the outer side of the abutting plate is provided with a chamfer matched with the outer side of the abutting strip, and the abutting plate is made of rubber material.

[0011] Preferably, the outer diameter of the extrusion plate is smaller than the outer diameter of the sponge column.

[0012] Preferably, limiting plates are fixed at both ends of the moving rod.

[0013] Preferably, the movable opening is composed of an arc-shaped opening and two straight openings, the arc-shaped opening is located below the laser radar body, and the two straight openings are connected to both ends of the arc-shaped opening.

[0014] Preferably, a limiting strip abutting against the outer side of the abutting plate is fixed on the mounting groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention optimizes the traditional laser radar used for vehicle measurement. By designing a driving part and a sponge column on the outer shell, the outer side of the laser radar can be wiped. With the help of a cleaning component, the sponge column can be cleaned after wiping, thereby eliminating the need for manual wiping by personnel, shortening the wiping time, and eliminating the need to close the road, thereby improving the measurement efficiency of the laser radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the overall docking with the bracket of the present invention; Figure 2 This is a schematic diagram of another angle structure of the present invention as a whole docking with the bracket; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the internal structure of the outer frame of the present invention after partial section; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the state where the sponge column of the present invention cleans the outer side of the laser radar body; Figure 8 This is a schematic diagram of the connection between the sponge column and the moving rod of the present invention.

[0017] In the figure: 1. docking hoop; 2. outer frame; 3. laser radar body; 4. moving mouth; 5. moving rod; 6. driving part; 7. traveling part; 8. sponge column; 9. cleaning part; 10. driving motor; 11. motor seat; 12. roller; 13. track plate; 14. traveling wheel; 15. traveling plate; 16. cleaning pipe; 17. water spray hole; 18. hose; 19. extrusion plate; 20. abutting strip; 21. mounting groove; 22. abutting part; 23. docking shaft; 24. abutting plate; 25. arc rod; 26. arc spring; 27. chamfer; 28. limit plate; 29. ​​arc mouth; 30. straight mouth; 31. limit strip. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 - Figure 6 as well as Figure 8 A laser radar high-precision height measuring device shown in the figure includes a buttock 1 connected to a bracket, and also includes an outer frame 2, the top of the outer frame 2 is fixed to the buttock 1, a laser radar body 3 is installed in the outer frame 2, moving openings 4 are opened on both sides of the outer frame 2, a moving rod 5 is slidably inserted in the moving opening 4, and a driving part 6 connected to the outer end of the moving rod 5 is driven to rotate by the driving part 6, a traveling part 7 that moves on the moving opening 4 is installed on the outer side of the moving rod 5, a sponge column 8 is installed on the outer side of the moving rod 5, and the moving rod 5 is moved along the moving opening 4 to drive the sponge column 8 to wipe the outer side of the laser radar body 3, and a cleaning component 9 fixed on the outer frame 2 is used to squeeze and clean the outer side of the sponge column 8; In this solution, the driving part 6 drives the moving rod 5 to move along the moving port 4, driving the sponge column 8 to wipe the outside of the laser radar body 3, thereby effectively removing the residue on the outside and reducing the dirt rate of the outside of the laser radar body 3. Then, with the help of the cleaning component 9, water is sprayed on the outside of the sponge column 8, which can effectively remove the residue on the outside of the sponge column 8.

[0020] It should be noted that the cleaning component 9 can spray water on the sponge column 8 to moisten it, thereby achieving a better wiping effect.

[0021] For further information, see Figure 3 and Figure 4 The driving part 6 includes a driving motor 10, the output end of the driving motor 10 is fixed to the outer end of the moving rod 5 through a coupling, a motor seat 11 is fixed on the driving motor 10, a roller 12 is rotatably mounted on the motor seat 11, and a track plate 13 consistent with the moving track of the moving port 4 is fixed on the outer side of the outer frame 2; The travel member 7 includes a travel wheel 14 fixed to the outside of the moving rod 5, a travel plate 15 that is consistent with the moving track of the moving port 4 is fixed to the inside of the outer frame 2, and the travel wheel 14 is fitted to the outside of the travel plate 15, and the fitting surfaces of the two are frosted surfaces; In this solution, the driving unit 6 provides power to make the moving rod 5 rotate. At the same time, the designed rollers 12 and track plates 13 limit the driving motor 10 so that it can drive the moving rod 5 to rotate. At the same time, when the traveling wheels 14 on the moving rod 5 rotate along the traveling plates 15, the moving rod 5 can be driven to move along the moving opening 4. The design of the rollers 12 enables the driving motor 10 to move stably along the track plate 13.

[0022] Specifically, the roller 12 is slidably connected to the track plate 13 , and the running wheel 14 and the running plate 15 are frosted surfaces with greater friction, so that the running wheel 14 can move stably along the running plate 15 .

[0023] Also, see Figure 1 and Figure 2 The cleaning component 9 includes two cleaning pipes 16 fixed on the outer frame 2, the two cleaning pipes 16 are provided with water spray holes 17, the outer ends of the cleaning pipes 16 are fixedly connected with hoses 18, the outer sides of both ends of the moving rod 5 are provided with reciprocating thread grooves, the threads of the two ends of the moving rod 5 are sleeved with extrusion plates 19, the inner side of the outer frame 2 is fixed with a resisting strip 20, the extrusion plate 19 is provided with a mounting groove 21, and the extrusion plate 19 is provided with an abutting portion 22 adapted to the resisting strip 20; The abutting portion 22 includes a docking shaft 23 rotatably mounted in the mounting groove 21, an abutting plate 24 is fixed to the outside of the docking shaft 23, an arc rod 25 fixed to the mounting groove 21 is slidably inserted in the abutting plate 24, an arc spring 26 is sleeved on the outside of the arc rod 25, and the abutting plate 24 is pushed outward by the arc spring 26. In order to make the abutting plate 24 stably abut against the outside of the abutting bar 20, a limit bar 31 abutting against the outside of the abutting plate 24 is fixed on the mounting groove 21; In this solution, the principle of using the cleaning component 9 to clean the sponge column 8 is: First, the sponge column 8 is moved to one end of the moving port 4 so that the abutting plate 24 abuts against the abutting strip 20. Then, the moving rod 5 is driven to continue rotating by the driving unit 6. At this time, the moving rod 5 starts to rotate. Since the moving rod 5 is at the end of the moving port 4, it cannot continue to move, so that the travel wheel 14 starts to idle on the travel plate 15. During the rotation of the moving rod 5, the abutting extrusion plate 19 moves along the reciprocating thread groove on the outer side of the moving rod 5 to achieve reciprocating extrusion of the sponge column 8. With the water sprayed from the water spray hole 17, the sponge column 8 can be cleaned and the dirt attached to it can be removed. It should also be noted that: in order to ensure that the abutting plate 24 and the abutting strip 20 can be stably connected, the outer side of the abutting plate 24 is designed to be provided with a chamfer 27 that matches the outer side of the abutting strip 20; During the movement of the moving rod 5, in order to prevent the extrusion plate 19 from contacting the outside of the laser radar body 3, the outer diameter of the extrusion plate 19 is designed to be smaller than the outer diameter of the sponge column 8; at the same time, during the rotation of the moving rod 5, in order to prevent the abutment plate 24 from causing damage to the outside of the laser radar body 3, the abutment plate 24 is designed to be made of rubber material, so that when it contacts the outside of the arc-shaped laser radar body 3, it can be reset and retreated to the installation groove 21 when it is squeezed by external force.

[0024] In this scheme, reference Figure 5 and Figure 7 The principle of reducing the dirtiness of the outer side of the laser radar body 3 includes the following steps: In the first step, when the personnel observe that there is a large difference in accuracy when the laser radar body 3 measures the vehicles coming and going, it is determined that the external dirty rate of the laser radar body 3 is high; The second step is to connect the hose 18 in the cleaning component 9 to the external water supply equipment, and spray the cleaning agent from the water spray hole 17 on the cleaning pipe 16 to the outside of the sponge column 8; In the third step, the driving unit 6 provides power to drive the moving rod 5 to move along the moving opening 4, so that the sponge column 8 wipes the outer side of the laser radar body 3; In the fourth step, after the sponge column 8 wipes the outside of the laser radar body 3 for several times, the moving rod 5 is moved to the end of the moving port 4 close to the abutment bar 20, and the abutment plate 24 is used to abut against the abutment bar 20. The moving rod 5 continues to rotate and starts to squeeze the sponge column 8. During the squeezing process, the cleaning agent can be sprayed to effectively remove the dirt remaining on the sponge column 8, which is convenient for cleaning the outside of the laser radar body 3 next time.

[0025] Finally, it should be noted that the sponge column 8 itself has a certain elasticity, and after being squeezed, it can be reset according to its own elasticity.

[0026] Example 2: Please refer to Figure 8 This embodiment further explains the first embodiment, and the difference lies in that limiting plates 28 are additionally provided at both ends of the moving rod 5.

[0027] Specifically, the two ends of the moving rod 5 are fixed with limiting plates 28 , and the fixed limiting plates 28 make the moving rod 5 more stable when moving along the moving opening 4 , thereby preventing the moving rod 5 from being skewed.

[0028] It should also be noted that in the present embodiment, the movable opening 4 is composed of an arc opening 29 and two straight openings 30. The arc opening 29 is located below the laser radar body 3. The two straight openings 30 are connected to the two ends of the arc opening 29. The movable rod 5 can slide stably when moving along the arc opening 29 and the straight opening 30. When moving in the arc opening 29, it drives the sponge column 8 to wipe the outside of the laser radar body 3. When moving into the straight opening 30, it can be sprayed with cleaning agent by the cleaning tube 16 in the cleaning component 9, while staying away from the laser radar body 3, so as to facilitate the liquid spraying operation on the sponge column 8.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser radar high-precision height measurement device, comprising: A butt collar (1) connected to the bracket; It is characterized by further comprising: An outer frame (2), the top of the outer frame (2) being fixed to the docking hoop (1), a laser radar body (3) being installed in the outer frame (2), movable openings (4) being provided on both sides of the outer frame (2), and movable rods (5) being slidably inserted in the movable openings (4), and; A driving part (6) connected to the outer end of the moving rod (5), the driving part (6) drives the moving rod (5) to rotate, the outer side of the moving rod (5) is provided with a travel part (7) that moves on the moving opening (4), the outer side of the moving rod (5) is provided with a sponge column (8), the moving rod (5) moves along the moving opening (4), and drives the sponge column (8) to wipe the outer side of the laser radar body (3), and; A cleaning component (9) is fixed on the outer frame (2), and the outer side of the sponge column (8) is squeezed and cleaned by the cleaning component (9).

2. A laser radar high-precision height measurement device according to claim 1, characterized in that: The driving part (6) comprises a driving motor (10), the output end of the driving motor (10) is fixed to the outer end of the moving rod (5) via a coupling, a motor seat (11) is fixed to the driving motor (10), and a roller (12) is rotatably mounted above the motor seat (11), and a track plate (13) that is consistent with the moving trajectory of the moving port (4) is fixed to the outside of the outer frame (2).

3. A laser radar high-precision height measurement device according to claim 2, characterized in that: The travel member (7) comprises a travel wheel (14) fixed to the outside of the moving rod (5); a travel plate (15) which is consistent with the moving trajectory of the moving opening (4) is fixed to the inside of the outer frame (2); the travel wheel (14) is fitted to the outside of the travel plate (15), and the fitting surfaces of the two are frosted surfaces.

4. A laser radar high-precision height measurement device according to claim 3, characterized in that: The cleaning component (9) comprises two cleaning pipes (16) fixed on the outer frame (2), the two cleaning pipes (16) are provided with water spray holes (17), and the outer ends of the cleaning pipes (16) are fixedly connected with hoses (18), the outer sides of both ends of the moving rod (5) are provided with reciprocating thread grooves, and the threaded sleeves of the two ends of the moving rod (5) are provided with extrusion plates (19), the inner side of the outer frame (2) is fixed with an abutment bar (20), the extrusion plate (19) is provided with a mounting groove (21), and an abutment portion (22) adapted to the abutment bar (20) is installed in the extrusion plate (19).

5. The high-precision laser radar height measurement device according to claim 4, characterized in that: The abutting portion (22) comprises a docking shaft (23) rotatably mounted in the mounting groove (21); an abutting plate (24) is fixed on the outside of the docking shaft (23); an arc-shaped rod (25) fixed to the mounting groove (21) is slidably inserted in the abutting plate (24); and an arc-shaped spring (26) is sleeved on the outside of the arc-shaped rod (25); the arc-shaped spring (26) pushes the abutting plate (24) outward.

6. A laser radar high-precision height measurement device according to claim 5, characterized in that: The outer side of the abutting plate (24) is provided with a chamfer (27) adapted to the outer side of the abutting strip (20), and the abutting plate (24) is made of rubber material.

7. The high-precision laser radar height measurement device according to claim 4, characterized in that: The outer diameter of the extrusion plate (19) is smaller than the outer diameter of the sponge column (8).

8. The laser radar high-precision height measurement device according to claim 1, characterized in that: Limiting plates (28) are fixed at both ends of the moving rod (5).

9. The laser radar high-precision height measurement device according to claim 1, characterized in that: The movable opening (4) is composed of an arc-shaped opening (29) and two straight openings (30); the arc-shaped opening (29) is located below the laser radar body (3), and the two straight openings (30) are connected to both ends of the arc-shaped opening (29).

10. The laser radar high-precision height measurement device according to claim 5, characterized in that: A limiting strip (31) is fixed on the installation groove (21) and abuts against the outer side of the abutting plate (24).

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