A multi-line laser scanning radar

Abstract

The utility model belongs to the field of laser scanning technology discloses a kind of multi-line laser scanning radar, including fixing frame, fixed part, multiple laser transceiver module, mounting plate, multiple reading parts and driving part, multiple installation sites are equipped with in the fixed frame peripheral surface interval, multiple laser transceiver module is corresponding with multiple installation sites, and is rotationally connected with installation site in a point, fixed part can selectively fix two, laser transceiver module includes the arc scale line with a point as center, mounting plate is fixed in fixed frame, reading part is fixed in mounting plate, multiple reading parts and the outer wall of multiple laser transceiver module are attached, reading part includes reading arrow pointing to a point, reading arrow is opposite to arc scale line, driving part is connected with fixed frame, configured as driving fixed part to rotate 360 °.Multi-line laser scanning radar, the included laser transceiver module's pitch angle can be accurately adjusted, improve the efficiency and convenience of installation personnel installation work.

Description

Technical Field

[0001] This utility model relates to the field of laser scanning technology, and in particular to a multi-line laser scanning radar. Background Technology

[0002] Multi-line laser scanning radar refers to a rotating ranging radar that simultaneously emits and receives multiple laser beams. It can not only identify the height information of an object but also scan its surrounding environment, and is mainly used in fields such as autonomous driving and robotics. A multi-line laser scanning radar consists of multiple laser transceiver modules. The elevation angle of each transceiver module determines its emission and reception angles, and thus its scanning range.

[0003] Some vehicles opt to install multi-line laser scanning radar to improve driving convenience. Existing multi-line laser scanning radars come with fixed pitch angles for their laser transceiver modules at the factory. However, due to variations in vehicle specifications, these radars often fail to provide a comprehensive scan of the vehicle's surroundings. After installation, the pitch angle of the transceiver modules needs adjustment. However, installers cannot accurately control the adjustment angle, requiring multiple adjustments for each transceiver module. This results in a significant time and effort being spent on each installation.

[0004] Therefore, there is an urgent need for a multi-line laser scanning radar to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-line laser scanning radar that can solve the problem that the elevation angle of the laser transceiver module in existing multi-line laser scanning radars cannot be accurately adjusted, which means that the installation personnel need to adjust the elevation angle of each laser transceiver module multiple times each time they install a multi-line laser scanning radar, consuming a lot of time and effort.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A multi-line laser scanning radar, comprising:

[0008] The system includes a mounting frame, a fixing component, and multiple laser transceiver modules. The mounting frame has multiple mounting positions spaced apart on its circumferential surface, and the laser transceiver modules are correspondingly arranged with respect to the mounting positions. Each laser transceiver module is rotatably connected to a mounting position at point a, and the fixing component can selectively fix the laser transceiver module to the mounting position. Each laser transceiver module includes an arc-shaped scale line centered at point a.

[0009] A mounting plate and multiple readers are provided. The mounting plate is sleeved and fixed to the fixing frame. The readers are fixedly placed on the mounting plate. The multiple readers are attached to the outer wall of the multiple laser transceiver modules. Each reader includes a reading arrow pointing to point a. The reading arrow is opposite to the arc-shaped scale line.

[0010] A drive unit is connected to the fixed frame, and the drive unit is configured to drive the fixed frame to rotate 360°.

[0011] As a preferred technical solution for multi-line laser scanning radar, the arc-shaped scale line includes a 0-scale line, a first scale area, and a second scale area, with the first scale area and the second scale area symmetrically distributed on both sides of the 0-scale line.

[0012] As a preferred technical solution for multi-line laser scanning radar, the angle range between the 0-degree line and the boundary line of the first scale area is 0° to 45°.

[0013] As a preferred technical solution for multi-line laser scanning radar, the laser transceiver module includes a connector and a laser scanning head. The connector includes a connection area and an assembly area. The fixing component includes a pin and a nut. The connection area is rotatably connected to the mounting position through the pin. The nut is threadedly connected to the pin. The laser scanning head is placed in the assembly area. The arc-shaped scale line is set in the connection area.

[0014] As a preferred technical solution for multi-line laser scanning radar, the laser transceiver module further includes a data processing module. The data processing module is connected to the laser scanning head via a data cable. The data processing module includes a communication module, which is wirelessly connected to external devices.

[0015] As a preferred technical solution for multi-line laser scanning radar, the connection area includes a mounting groove, the mounting position is located within the mounting groove, the mounting position includes a positioning hole, both side walls of the mounting groove are provided with mounting holes, the pin passes through the positioning hole and the mounting hole, and the nut is used to lock the mounting position and the connecting seat.

[0016] As a preferred technical solution for multi-line laser scanning radar, the mounting bracket includes a mounting base and a mounting cover. The mounting base has a plurality of first protrusions spaced apart on its circumferential surface. Each first protrusion includes a first half-hole. The mounting cover has a plurality of second protrusions correspondingly on its circumferential surface. Each second protrusion has a second half-hole. When the mounting cover is fastened to the mounting base, the first protrusions and the second protrusions form the mounting position, and the first half-holes and the second half-holes form the positioning holes.

[0017] As a preferred technical solution for multi-line laser scanning radar, the driving component is an axial flux brushless motor.

[0018] As a preferred technical solution for multi-line laser scanning radar, the laser transceiver module is equipped with a wireless receiving coil, the main body of the driving component is equipped with a wireless transmitting coil, and the multi-line laser scanning radar also includes a power supply module, which is used to supply power to the wireless transmitting coil.

[0019] As a preferred technical solution for multi-line laser scanning radar, the mounting frame has 8 mounting positions spaced apart on its circumference, and the number of laser transceiver modules is 8.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model provides a multi-line laser scanning radar where the laser transceiver module is rotatably connected to the mounting position at point a, and a fixing component can selectively fix the two, allowing the pitch angle of the laser transceiver module to be adjusted. An arc-shaped scale line centered at point a is set on the laser transceiver module, and a corresponding reading component is installed that fits against the laser transceiver module. The reading arrow in the reading component points towards point a and points to the arc-shaped scale line, allowing the installer to determine the current pitch angle of the laser transceiver module. When the pitch angle of the laser transceiver module needs adjustment, the installer can calculate the required adjustment angle based on the scanning range of the laser transceiver module and the vehicle dimensions. Using the arc-shaped scale line and the reading arrow, the pitch angle of the laser transceiver module can be precisely adjusted, effectively solving the problem of installers needing to adjust the pitch angle of each laser transceiver module multiple times when installing a multi-line laser scanning radar on a vehicle, which consumes a lot of time and effort. Attached Figure Description

[0022] Figure 1 This is an exploded schematic diagram of the multi-line laser scanning radar provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the multi-line laser scanning radar provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the mounting frame for the multi-line laser scanning radar provided by this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the laser transceiver module of the multi-line laser scanning radar provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the reading device of the multi-line laser scanning radar provided by this utility model.

[0027] In the picture:

[0028] 1. Fixing bracket; 10. Positioning hole; 11. Fixing base; 111. First protrusion; 1111. First half hole; 12. Fixing cover; 121. Second protrusion; 1211. Second half hole; 2. Fixing component; 3. Laser transceiver module; 31. Arc-shaped scale line; 32. Connecting base; 33. Laser scanning head; 4. Mounting plate; 5. Reading component; 51. Reading arrow; 6. Driving component. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figures 1 to 5As shown in the diagram, this embodiment provides a multi-line laser scanning radar including a mounting frame 1, a fixing component 2, multiple laser transceiver modules 3, a mounting plate 4, multiple reader components 5, and a driving component 6. Multiple mounting positions are spaced apart on the circumference of the mounting frame 1, and the multiple laser transceiver modules 3 are correspondingly arranged with each mounting position. The spacing between the multiple laser transceiver modules 3 reduces the risk of mutual interference between the lasers emitted by the multiple laser transceiver modules 3 upon return. The laser transceiver modules 3 and the mounting positions are rotatably connected at point a. The fixing component 2 can selectively fix the laser transceiver modules 3 at the mounting positions, meaning the pitch angle between the laser transceiver modules 3 and the mounting positions can be adjusted. The laser transceiver module 3 includes an arc-shaped scale line 31 centered at point a. A mounting plate 4 is fitted and fixed to the mounting frame 1. Readers 5 are fixedly placed on the mounting plate 4. Multiple readers 5 are attached to the outer wall of the laser transceiver module 3. Each reader 5 includes a reading arrow 51 pointing to point a, and the reading arrow 51 is opposite to the arc-shaped scale line 31. The current pitch angle of the laser transceiver module 3 can be read through the reading arrow 51. A drive unit 6 is connected to the mounting frame 1 and is configured to drive the mounting frame 1 to rotate 360° to achieve a more comprehensive scan of the surrounding environment of the multi-line laser scanning radar. When the mounting frame 1 rotates, it drives the mounting plate 4 to rotate, and the multiple readers 5 placed on the mounting plate 4 rotate accordingly.

[0034] The multi-line laser scanning radar provided in this embodiment rotatably connects the laser transceiver module 3 to the mounting position at point a, and the fixing component 2 can selectively fix the two, allowing the pitch angle of the laser transceiver module 3 to be adjusted. By setting an arc-shaped scale line 31 centered at point a on the laser transceiver module 3, and correspondingly setting a reading component 5 that fits against the laser transceiver module 3, with the reading arrow 51 in the reading component 5 pointing towards point a and pointing to the arc-shaped scale line 31, the installation personnel can know the current pitch angle of the laser transceiver module 3 through the reading arrow 51. When it is necessary to adjust the pitch angle of the laser transceiver module 3, the installer can calculate the required angle based on the scanning range of the laser transceiver module 3 and the vehicle size. The pitch angle of the laser transceiver module 3 can then be precisely adjusted according to the arc-shaped scale line 31 and the reading arrow 51. This effectively solves the problem that installers need to adjust the pitch angle of each laser transceiver module 3 multiple times when installing multi-line laser scanning radar on a vehicle, which consumes a lot of time and effort.

[0035] For example, the arc-shaped scale line 31 includes a 0-degree scale line, a first scale area, and a second scale area, wherein the first scale area and the second scale area are symmetrically distributed on both sides of the 0-degree scale line. When the multi-line laser scanning radar leaves the factory, the 0-degree scale line is aligned with the reading arrow 51. When adjusting the pitch angle of the laser transceiver module 3, the installer can rotate the laser transceiver module 3 clockwise or counterclockwise to the desired pitch angle, based on the calculated adjustment angle. When rotating the laser transceiver module 3 clockwise, the installer can adjust it via the scale line in the first scale area; when rotating it counterclockwise, the installer can adjust it via the scale line in the second scale area, further improving the ease of operation for the installer. Specifically, the angle between the 0 mark and the boundary mark of the first scale area is 0° to 45°, and similarly, the angle between the 0 mark and the boundary mark of the second scale area is 0° to 45°.

[0036] For example, such as Figure 1 and Figure 4 As shown, the laser transceiver module 3 includes a connector 32 and a laser scanning head 33. The connector 32 includes a connection area and an assembly area. The fixing component 2 includes a pin and a nut. The connection area is rotatably connected to the mounting position via the pin, and the nut is threadedly connected to the pin. One end of the pin has a head, and the shaft of the pin has an external thread, specifically located at the end opposite to the head. After the pin passes through the connection area and the mounting position, the nut is screwed into the external thread, locking the connection area and the mounting position, thereby fixing the laser transceiver module 3 to the mounting bracket 1. When it is necessary to adjust the pitch angle of the laser transceiver module 3, simply loosen the nut and rotate the connector 32. After adjusting the pitch angle of the laser transceiver module 3, tighten the nut. The laser scanning head 33 is located in the assembly area, and the arc-shaped scale line 31 is located in the connection area. When the connector 32 is rotated, the position of the arc-shaped scale line 31 changes, and the data of the scale line opposite to the reading arrow 51 changes, thus allowing the installer to know the rotation angle of the laser transceiver module 3.

[0037] Furthermore, the laser transceiver module 3 also includes a data processing module. This module is connected to the laser scanning head 33 via a data cable, allowing environmental data scanned by the laser scanning head 33 to be transmitted to the data processing module. The data processing module includes a communication module that wirelessly communicates with an external device, enabling the wireless transmission of environmental data scanned by the laser scanning head 33 to the external device. This external device can be a display screen, allowing the vehicle owner to view the surrounding environment. In this embodiment, the communication module within the data processing module is a Bluetooth transmitter, and the external device includes a Bluetooth receiver module. Bluetooth communication enables the transmission of data from the data processing module to the external device. Using Bluetooth communication to transmit data between different devices is a standard technique in the communication field and will not be elaborated upon further here.

[0038] The connection area includes a mounting groove, and the mounting position is located within the mounting groove. The mounting position includes a positioning hole 10. Mounting holes are provided on both side walls of the mounting groove. A pin passes through the positioning hole 10 and the mounting hole. A nut is threadedly connected to the pin to lock the mounting position to the connecting seat 32. After the mounting position and the connecting seat 32 are connected, the location of the mounting hole is point a.

[0039] Furthermore, the mounting bracket 1 includes a mounting base 11 and a mounting cover 12. The mounting base 11 has multiple first protrusions 111 spaced apart on its circumferential surface, each first protrusion 111 including a first half-hole 1111. The mounting cover 12 has multiple second protrusions 121 correspondingly spaced on its circumferential surface, each second protrusion 121 having a second half-hole 1211. When the mounting cover 12 is fastened to the mounting base 11, the first protrusions 111 and second protrusions 121 form a mounting position, and the first half-holes 1111 and 1211 form a positioning hole 10. The mounting cover 12 and the mounting base 11 are fastened together and fixedly connected by bolts to assemble the mounting bracket 1. When maintenance or replacement of the laser transceiver module 3 is required, the laser transceiver module 3 needs to be removed. Because multiple laser transceiver modules 3 are mounted on the mounting bracket 1, the spacing between adjacent laser transceiver modules 3 is small, resulting in limited operating space. By setting the mounting bracket 1 as a mounting base 11 and a mounting cover 12 that are connected by bolts, when the laser transceiver module 3 needs to be disassembled, the car owner only needs to turn the bolts to remove the mounting cover 12 from the mounting base 11, and then the laser transceiver module 3 and the fixing part 2 can be quickly removed, which improves the convenience of the car owner to disassemble the laser transceiver module 3.

[0040] In this embodiment, the drive unit 6 is an axial flux brushless motor. Compared with other types of brushless motors, the axial flux brushless motor has a smaller overall thickness, which enables the multi-line laser scanning radar to be more miniaturized.

[0041] In this embodiment, the laser transceiver module 3 is equipped with a wireless receiving coil, and the main body of the driver 6 is equipped with a wireless transmitting coil. The multi-line laser scanning radar also includes a power supply module, which supplies power to the wireless transmitting coil. Powering the laser scanning head 33 via wireless charging avoids excessive wiring in the multi-line laser scanning radar, making the overall design more streamlined. The power supply module includes a power inlet, a power battery, a current converter, and a power outlet. The power inlet charges the power battery, and the power outlet connects to the power supply via the current converter, which converts the DC power from the battery into AC power before transmitting it to the power outlet. The power outlet is connected to the wireless transmitting coil via a wire. At this point, the wireless transmitting coil can supply power to the wireless receiving coil wirelessly, powering the laser scanning head 33. The working principle of wireless charging is existing technology and will not be elaborated upon here.

[0042] In this embodiment, the mounting bracket 1 has eight mounting positions spaced apart on its circumference, corresponding to eight laser transceiver modules 3. If the number of laser transceiver modules 3 is too small, it will be impossible to comprehensively scan the surrounding environment; if the number of laser transceiver modules 3 is too large, interference may occur when the lasers emitted by different laser transceiver modules 3 are reflected back, affecting the accuracy of the scanning results. Setting eight laser transceiver modules 3 not only achieves comprehensive scanning of the surrounding environment but also reduces the risk of interference when the lasers emitted by different laser transceiver modules 3 are reflected back, improving the rationality of the multi-line laser scanning radar design.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-line laser scanning radar, characterized in that, include: The system comprises a mounting frame (1), a fixing element (2), and multiple laser transceiver modules (3). The mounting frame (1) has multiple mounting positions spaced apart on its circumference, and the multiple laser transceiver modules (3) are correspondingly arranged with the multiple mounting positions. The laser transceiver modules (3) are rotatably connected to the mounting positions at point a. The fixing element (2) can selectively fix the laser transceiver modules (3) to the mounting positions. The laser transceiver modules (3) include an arc-shaped scale line (31) centered at point a. The mounting plate (4) and multiple reading devices (5) are mounted on the mounting bracket (1) and fixedly placed on the mounting plate (4). The multiple reading devices (5) are attached to the outer wall of the multiple laser transceiver modules (3). Each reading device (5) includes a reading arrow (51) pointing to point a, and the reading arrow (51) is opposite to the arc-shaped scale line (31). A drive member (6) is connected to the fixed frame (1), and the drive member (6) is configured to drive the fixed frame (1) to rotate 360°.

2. The multi-line laser scanning radar according to claim 1, characterized in that, The arc-shaped scale line (31) includes a 0 scale line, a first scale area, and a second scale area, with the first scale area and the second scale area symmetrically distributed on both sides of the 0 scale line.

3. The multi-line laser scanning radar according to claim 2, characterized in that, The angle between the 0 mark and the boundary mark of the first scale area is 0° to 45°.

4. The multi-line laser scanning radar according to claim 1, characterized in that, The laser transceiver module (3) includes a connector (32) and a laser scanning head (33). The connector (32) includes a connection area and an assembly area. The fastener (2) includes a pin and a nut. The connection area is rotatably connected to the mounting position through the pin. The nut is threadedly connected to the pin. The laser scanning head (33) is placed in the assembly area. The arc-shaped scale line (31) is set in the connection area.

5. The multi-line laser scanning radar according to claim 4, characterized in that, The laser transceiver module (3) also includes a data processing module. The data processing module is connected to the laser scanning head (33) via a data cable. The data processing module includes a communication module, which is wirelessly connected to external devices.

6. The multi-line laser scanning radar according to claim 4, characterized in that, The connection area includes a mounting groove, the mounting position is located in the mounting groove, the mounting position includes a positioning hole (10), the two side walls of the mounting groove are provided with mounting holes, the pin passes through the positioning hole (10) and the mounting hole, and the nut is used to lock the mounting position and the connecting seat (32).

7. The multi-line laser scanning radar according to claim 6, characterized in that, The fixing frame (1) includes a fixing base (11) and a fixing cover (12). The fixing base (11) has a plurality of first protrusions (111) spaced apart on its circumferential surface. Each first protrusion (111) includes a first half-hole (1111). The fixing cover (12) has a plurality of second protrusions (121) correspondingly provided on its circumferential surface. Each second protrusion (121) has a second half-hole (1211). When the fixing cover (12) is fastened to the fixing base (11), the first protrusions (111) and the second protrusions (121) form the mounting position, and the first half-hole (1111) and the second half-hole (1211) form the positioning hole (10).

8. The multi-line laser scanning radar according to any one of claims 1-7, characterized in that, The drive unit (6) is an axial flux brushless motor.

9. The multi-line laser scanning radar according to any one of claims 1-7, characterized in that, The laser transceiver module (3) is equipped with a wireless receiving coil, and the main body of the driving component (6) is equipped with a wireless transmitting coil. The multi-line laser scanning radar also includes a power supply module, which is used to supply power to the wireless transmitting coil.

10. The multi-line laser scanning radar according to any one of claims 1-7, characterized in that, The mounting bracket (1) has 8 mounting positions spaced apart on its circumference, and the number of laser transceiver modules (3) is 8.

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