Radar installation calibration device

Abstract

The utility model belongs to the technical field of radar assembly, and provides a radar installation and calibration device which comprises a calibration support which is arranged in a cross shape, side plates are fixedly connected to the four ends of the calibration support, a calibration assembly is arranged on the calibration support and comprises a universal shaft rotationally connected to the calibration support, and the universal shaft is connected with the calibration support. A connecting rod is fixedly connected to the universal shaft, a connecting frame is fixedly connected to the end of the connecting rod, an adjusting component is arranged on the side plate, and a laser radar is arranged in the connecting frame. According to the utility model, all-around angle adjustment of the laser radar is realized through the calibration assembly so as to calibrate the laser radar and ensure that the detection angle of the laser radar is accurate, thereby reducing the measurement error and improving the performance of the whole system.

Description

Technical Field

[0001] This utility model belongs to the field of radar assembly technology, specifically a radar installation and calibration device. Background Technology

[0002] Radar, as an advanced detection technology, is based on the principle of light emission, propagation and reception. It emits a detection signal to the target, and then compares the received signal reflected back from the target with the emitted signal. After appropriate processing, relevant information about the target can be obtained, such as parameters like target distance, azimuth, altitude, speed, attitude and even shape.

[0003] However, in reality, the detection angle of lidar may be incorrect during installation or long-term use. The detection performance of lidar is highly dependent on the accuracy of its pointing. Any slight angular deviation may lead to errors in target detection, tracking or positioning, reducing the overall system performance. To address this, those skilled in the art have proposed a lidar installation calibration device to solve the problems mentioned in the background art.

[0004] The information disclosed above in this background section is only intended to enhance the understanding of the background section of this utility model, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a radar installation and calibration device to solve the problem that, in the prior art, the detection angle of a lidar may be incorrect during installation or long-term use.

[0006] To achieve the above objectives, this utility model provides a radar installation and calibration device, including a calibration bracket. The calibration bracket is cross-shaped, and side plates are fixedly connected to each of the four ends of the calibration bracket. A calibration component is provided on the calibration bracket. The calibration component includes a universal joint rotatably connected to the calibration bracket, a connecting rod fixedly connected to the universal joint, and a connecting frame fixedly connected to the end of the connecting rod. An adjustment component is provided on the side plate, and a lidar is provided inside the connecting frame.

[0007] Preferably, the adjusting component includes a base plate fixedly connected to the right side plate of the correction bracket, a first motor fixedly connected to the base plate, a first arc-shaped lever fixedly connected to the output end of the first motor, and a first sliding groove provided on the first arc-shaped lever.

[0008] Preferably, a second motor is fixedly connected to the lower side plate of the correction bracket, and a second arc-shaped lever is fixedly connected to the output end of the second motor, with a second sliding groove provided on the second arc-shaped lever.

[0009] Preferably, the end of the first arc-shaped lever away from the first motor is rotatably connected to the left side plate of the correction bracket, and the end of the second arc-shaped lever away from the second motor is rotatably connected to the upper side plate of the correction bracket. The diameter of the first arc-shaped lever is smaller than the diameter of the second arc-shaped lever, and the connecting rod passes through the first slide groove and the second slide groove in sequence.

[0010] Preferably, the connecting frame is provided with a disassembly and assembly component, the disassembly and assembly component includes a third sliding groove opened at the bottom of the connecting frame, a slot opened on one side of the connecting frame, a turntable rotatably connected inside the connecting frame, an arc-shaped groove opened on the turntable, a lever fixedly connected to the side of the turntable, a locking block slidably connected in the arc-shaped groove, and a locking slot opened on the lidar.

[0011] Preferably, the lever is slidably connected in the slot, the bottom of the locking block is slidably connected in the third sliding groove, the front end of the locking block is locked in the locking slot, and multiple third sliding grooves, arc grooves, locking blocks and locking slots are provided and are evenly distributed around the circumference.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model achieves omnidirectional angle adjustment of the laser radar by starting a first motor, which drives a first arc-shaped dial plate to rotate. Under the pressure of the first groove on the first arc-shaped dial plate, the connecting rod drives the connecting frame and the laser radar to adjust their vertical angles on the calibration bracket via a universal joint. Simultaneously, starting a second motor drives a second arc-shaped dial plate to rotate. Under the pressure of the second groove on the second arc-shaped dial plate, the connecting rod drives the connecting frame and the laser radar to adjust their horizontal angles on the calibration bracket via a universal joint. This allows for omnidirectional angle adjustment of the laser radar, enabling calibration and ensuring accurate detection angles. This reduces measurement errors and improves the overall system performance.

[0014] 2. This utility model uses a lever to rotate a turntable. Under the pressure of multiple arc-shaped grooves on the turntable, multiple locking blocks are guided by multiple third sliding grooves and locked into multiple slots on the lidar, thus fixing the lidar. By moving the lever in the opposite direction, the lidar can be released from its fixation. This allows for quick disassembly and assembly of the lidar for maintenance or replacement without the need for a lot of time and effort in a complex disassembly process, greatly improving the efficiency of maintenance work and shortening the downtime of the lidar system.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a radar installation and calibration device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a calibration component of a radar mounting calibration device according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the disassembly and assembly components of a radar installation and calibration device according to an embodiment of the present invention;

[0019] Figure 4 This is an exploded view of the structure of a radar installation and calibration device assembly / disassembly component according to an embodiment of this utility model.

[0020] In the picture:

[0021] 1. Calibration bracket; 11. Side plate; 2. Calibration assembly; 21. Universal joint; 22. Connecting rod; 23. Connecting frame; 24. Adjustment component; 241. Base plate; 242. First motor; 243. First arc-shaped lever; 244. First slide groove; 245. Second motor; 246. Second arc-shaped lever; 247. Second slide groove; 3. LiDAR; 4. Assembly / disassembly assembly; 41. Third slide groove; 42. Groove opening; 43. Turntable; 44. Arc groove; 45. Lever; 46. Locking block; 47. Locking slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that the drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only illustrative and not limiting.

[0023] Example 1:

[0024] Please see Figure 1 - Figure 4As shown, a radar installation and calibration device includes a calibration bracket 1, which is cross-shaped. Side plates 11 are fixedly connected to each of the four ends of the calibration bracket 1. A calibration assembly 2 is mounted on the calibration bracket 1. The calibration assembly 2 includes a universal joint 21 rotatably connected to the calibration bracket 1. A connecting rod 22 is fixedly connected to the universal joint 21, and a connecting frame 23 is fixedly connected to the end of the connecting rod 22. An adjustment component 24 is mounted on the side plates 11. A lidar 3 is mounted within the connecting frame 23. The calibration bracket 1 provides support for the entire device, and the universal joint 21 can transmit force between different angles. The power and torque have a large turning range. The connecting rod 22 is used to support the connecting frame 23, which is used to support the lidar 3. The adjusting component 24 is used to adjust the lidar 3 in all directions (up, down, left, and right) to calibrate the lidar 3. The lidar 3 is equipped with a laser emitting mechanism, which emits a detection signal to the target. Then, the received signal reflected back from the target is compared with the emitted signal. After appropriate processing, relevant information about the target can be obtained, such as the target distance, azimuth, altitude, speed, attitude, and even shape.

[0025] Specifically, the adjusting component 24 includes a base plate 241 fixedly connected to the right side plate 11 of the correction bracket 1. A first motor 242 is fixedly connected to the base plate 241. A first arc-shaped lever 243 is fixedly connected to the output end of the first motor 242. A first groove 244 is provided on the first arc-shaped lever 243. The base plate 241 is used to support the first motor 242. The first motor 242 is used to provide driving force for the first arc-shaped lever 243. The first arc-shaped lever 45 is used to apply compressive force to the connecting rod 22. The first groove 244 is used to provide guidance for the connecting rod 22.

[0026] Furthermore, a second motor 245 is fixedly connected to the lower side plate 11 of the correction bracket 1, and a second arc-shaped lever 246 is fixedly connected to the output end of the second motor 245. A second sliding groove 247 is provided on the second arc-shaped lever 246. The second motor 245 is used to provide driving force for the second arc-shaped lever 246, the second arc-shaped lever 45 is used to apply compressive force to the connecting rod 22, and the second sliding groove 247 is used to provide guidance for the connecting rod 22.

[0027] Furthermore, the end of the first arc-shaped lever 243 away from the first motor 242 is rotatably connected to the left side plate 11 of the correction bracket 1, and the end of the second arc-shaped lever 246 away from the second motor 245 is rotatably connected to the upper side plate 11 of the correction bracket 1. The diameter of the first arc-shaped lever 243 is smaller than the diameter of the second arc-shaped lever 246, and the connecting rod 22 passes through the first slide groove 244 and the second slide groove 247 in sequence.

[0028] As can be seen from the above, when the lidar 3 needs to be calibrated, the first motor 242 is started. Because the first arc-shaped lever 243 is fixedly connected to the output end of the first motor 242, the first motor 242 starts, driving the first arc-shaped lever 243 to rotate on the left side plate 11 of the calibration bracket 1. Under the squeezing force of the first sliding groove 244 opened on the first arc-shaped lever 243, the connecting rod 22 drives the connecting frame 23 and the lidar 3 to adjust their up and down angles on the calibration bracket 1 through the universal joint 21, and slides in the second sliding groove 247. The second motor 245 is started, because the second motor 245 outputs... A second arc-shaped lever 246 is fixedly connected to the output end. When the second motor 245 starts, it drives the second arc-shaped lever 246 to rotate. Under the pressure of the second sliding groove 247 opened on the second arc-shaped lever 246, the connecting rod 22 drives the connecting frame 23 and the lidar 3 to adjust the left and right angles on the calibration bracket 1 through the universal joint 21. It is also slidably connected in the first sliding groove 244, thereby realizing the all-round angle adjustment of the lidar 3 in all directions, so as to calibrate the lidar 3, ensure that the detection angle of the lidar 3 is accurate, thereby reducing measurement errors and improving the overall system performance.

[0029] Example 2:

[0030] Please see Figure 3 - Figure 4 As shown, this embodiment is basically the same as the previous embodiment, except that the connecting frame 23 is provided with a disassembly and assembly component 4. The disassembly and assembly component 4 includes a third sliding groove 41 opened at the bottom of the connecting frame 23, a slot 42 opened on one side of the connecting frame 23, a turntable 43 rotatably connected inside the connecting frame 23, an arc-shaped groove 44 opened on the turntable 43, a lever 45 fixedly connected to the side of the turntable 43, a locking block 46 slidably connected in the arc-shaped groove 44, and a locking slot 47 opened on the lidar 3. The third sliding groove 41 is used to provide guidance for the locking block 46, the slot 42 is used to provide guidance for the lever 45, the turntable 43 is moved by the lever 45 and rotates inside the connecting frame 23, the arc-shaped groove 44 is used to apply a squeezing force to the locking block 46, the locking block 46 is locked in the locking slot 47 to fix the lidar 3, and the locking slot 47 is used to receive the locking block 46.

[0031] Specifically, the lever 45 is slidably connected in the slot 42, the bottom of the locking block 46 is slidably connected in the third slide groove 41, and the front end of the locking block 46 is locked in the slot 47. The third slide groove 41, the arc groove 44, the locking block 46 and the slot 47 are all provided in multiples and are evenly distributed around the circumference.

[0032] As can be seen from the above, when it is necessary to disassemble and install the lidar 3 for maintenance or replacement, by moving the lever 45, since the lever 45 is fixedly connected to the turntable 43, the lever 45 drives the turntable 43 to rotate in the connecting frame 23. Under the squeezing force of the multiple arc-shaped grooves 44 opened on the turntable 43, the multiple locking blocks 46 that are slidably connected in the multiple arc-shaped grooves 44 move in opposite directions along the guide of the multiple third sliding grooves 41 until the front ends of the multiple locking blocks 46 are engaged in the multiple locking slots 47 opened on the lidar 3, thereby fixing the lidar 3. Moving the lever 45 in the opposite direction cancels the fixing of the lidar 3, which allows for quick disassembly and installation of the lidar for maintenance or replacement without spending a lot of time and effort in the complex disassembly process, greatly improving the efficiency of maintenance work and shortening the downtime of the lidar system.

[0033] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0034] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A radar installation and calibration device, characterized in that: include, A calibration bracket (1) is arranged in a cross shape. Side plates (11) are fixedly connected to the four ends of the calibration bracket (1). A calibration component (2) is provided on the calibration bracket (1). The calibration component (2) includes a universal joint (21) rotatably connected to the calibration bracket (1). A connecting rod (22) is fixedly connected to the universal joint (21). A connecting frame (23) is fixedly connected to the end of the connecting rod (22). An adjustment component (24) is provided on the side plate (11). A laser radar (3) is provided inside the connecting frame (23).

2. The radar installation and calibration device according to claim 1, characterized in that: The adjusting component (24) includes a base plate (241) fixedly connected to the right side plate (11) of the correction bracket (1). A first motor (242) is fixedly connected to the base plate (241). A first arc-shaped lever (243) is fixedly connected to the output end of the first motor (242). A first groove (244) is provided on the first arc-shaped lever (243).

3. The radar installation and calibration device according to claim 2, characterized in that: A second motor (245) is fixedly connected to the lower side plate (11) of the correction bracket (1), and a second arc-shaped dial plate (246) is fixedly connected to the output end of the second motor (245). A second sliding groove (247) is provided on the second arc-shaped dial plate (246).

4. The radar installation and calibration device according to claim 3, characterized in that: The end of the first arc-shaped lever (243) away from the first motor (242) is rotatably connected to the left side plate (11) of the correction bracket (1), and the end of the second arc-shaped lever (246) away from the second motor (245) is rotatably connected to the upper side plate (11) of the correction bracket (1). The diameter of the first arc-shaped lever (243) is smaller than the diameter of the second arc-shaped lever (246). The connecting rod (22) passes through the first slide groove (244) and the second slide groove (247) in sequence.

5. The radar installation and calibration device according to claim 1, characterized in that: The connecting frame (23) is provided with a disassembly and assembly component (4). The disassembly and assembly component (4) includes a third sliding groove (41) opened at the bottom of the connecting frame (23). A slot (42) is opened on one side of the connecting frame (23). A turntable (43) is rotatably connected inside the connecting frame (23). An arc-shaped groove (44) is opened on the turntable (43). A lever (45) is fixedly connected to the side of the turntable (43). A locking block (46) is slidably connected in the arc-shaped groove (44). A locking slot (47) is opened on the laser radar (3).

6. A radar installation and calibration device according to claim 5, characterized in that: The lever (45) is slidably connected in the slot (42), the bottom of the locking block (46) is slidably connected in the third sliding groove (41), and the front end of the locking block (46) is locked in the slot (47). The third sliding groove (41), the arc groove (44), the locking block (46) and the slot (47) are all provided in multiple ways and are evenly distributed around the circumference.

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