An adjustable support bracket and a trajectory splicing device for multi-source sensing equipment used therein.

Abstract

This utility model relates to the field of multi-source sensing equipment technology for intelligent transportation, and particularly to an adjustable bracket and a trajectory splicing device for the multi-source sensing equipment used therein. The adjustable bracket includes: a column composed of upper and lower telescopic sections with a telescopic height of 2.5m to 4m; a sensing equipment installation interface at the top of the column; and a wiring cavity inside the column to accommodate power cables, data cables, and grounding wires; a pitch angle adjustment component disposed between the column and the sensing equipment; a horizontal base connecting the sensing equipment and the pitch angle adjustment component, with the sensing equipment mounted on the horizontal base; and a vibration damping component disposed at the bottom of the column and connected to the ground. This utility model eliminates the need for secondary welding or on-site hole modification during installation, enabling rapid positioning and locking, and significantly shortening maintenance and replacement time; it comprehensively improves the detection accuracy, data continuity, and system reliability of the sensing equipment, reduces operation and maintenance costs, and meets the needs of intelligent transportation for all-weather, high-precision vehicle trajectory sensing.

Description

Technical Field

[0001] This utility model relates to the field of intelligent transportation multi-source sensing equipment technology, and in particular to an adjustable bracket and a multi-source sensing equipment trajectory splicing device used therein. Background Technology

[0002] As intelligent transportation systems evolve towards intelligence and connectivity, single sensors are no longer sufficient to meet the perception needs of complex traffic scenarios. Multi-source sensing device fusion systems, with their comprehensive perception capabilities across all weather conditions and scenarios and high precision, are gradually becoming the core solution for roadside intelligent sensing systems. To fully leverage the synergistic effects of various sensors, it is necessary to integrate multiple devices such as millimeter-wave radar, lidar, and visual sensors onto a support system with high-precision adjustment capabilities. Through precise spatial registration and temporal synchronization, deep fusion of multimodal data can be achieved.

[0003] Current common installation methods for multi-source sensing devices have many shortcomings. Fixed steel brackets only provide simple mechanical support and cannot meet the diverse requirements of different sensors for installation height, angle, and orientation; simple splicing structures lack overall rigidity, and the relative positions of multiple sensors are easily affected by environmental factors, causing displacement; traditional installation methods generally suffer from exposed cables and poor vibration resistance, affecting system reliability and lifespan. More importantly, existing solutions cannot guarantee the uniformity of spatiotemporal references across multiple sensors, leading to a decline in the performance of fusion algorithms. In addition, maintenance personnel often need to adjust each sensor individually when calibrating or replacing equipment, making the process complex and inefficient.

[0004] To address the aforementioned issues, there is an urgent need to develop a highly integrated, precisely adjustable, and interference-resistant multi-source sensing device fusion installation system. This system will solve the key challenges of physical installation and data fusion for multi-source sensing devices, providing a stable and reliable foundation for intelligent transportation systems, and ultimately enabling more accurate traffic condition perception and more efficient control and decision-making. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides an adjustable bracket and a multi-source sensing device trajectory splicing device used therein.

[0006] According to a first aspect of the present invention, an adjustable support bracket and a multi-source sensing device trajectory splicing device used therein are provided, comprising:

[0007] The column is composed of upper and lower telescopic sections with a telescopic height of 2.5m to 4m. The top of the column is provided with a sensing device installation interface. The inside of the column has a wiring cavity that accommodates power lines, data lines and grounding wires.

[0008] A pitch angle adjustment component is disposed between the column and the sensing device, and the pitch angle adjustment component and the column can rotate 360°.

[0009] A lateral base is connected between the sensing device and the pitch angle adjustment assembly, and the sensing device is mounted on the lateral base.

[0010] The vibration damping component is installed at the bottom of the column and connected to the ground.

[0011] In some embodiments of this utility model, the column is made of aluminum alloy, the cross-section of the wiring cavity is not less than 30mm×20mm, and the connection between the column and the pitch angle adjustment component also has multiple main support holes with a diameter of 5cm and auxiliary support holes with a diameter of 3.2cm. The main support holes and the auxiliary support holes are evenly distributed around the circumference of the column, and the diameter of the angle adjustment hole is 2.3cm.

[0012] In some embodiments of this utility model, the vibration damping component includes a damping bushing and a rubber vibration damping pad.

[0013] In some embodiments of this utility model, the pitch angle adjustment component has an angle adjustment range of ±15°, the horizontal base is provided with a limiting groove so that the sensing device forms a 25° angle with the ground when installed, and the pitch angle adjustment component also has a horizontal fine-tuning bolt so that the horizontal angle can be finely adjusted and locked within a range of ±0.5°.

[0014] According to a second aspect of the present invention, a multi-source sensing device trajectory stitching device is also provided, comprising:

[0015] Multiple adjustable supports arranged at equal intervals;

[0016] Sensing devices mounted on the adjustable bracket;

[0017] A trajectory segmentation generation mechanism is connected to the sensing device and generates a trajectory from the information collected by the sensing device;

[0018] The trajectory stitching mechanism stitches together the information collected in the trajectory segmentation generation mechanism and outputs lane-level continuous vehicle trajectory data.

[0019] In some embodiments of this utility model, the distance between two adjacent adjustable supports is 500±50 meters.

[0020] In some embodiments of this utility model, the sensing device is a 77GHz millimeter-wave radar with a detection range of 300 meters, a speed accuracy of ±0.05km / h, and an angle measurement accuracy of ±0.1°.

[0021] In some embodiments of this utility model, the sensing device is a fisheye camera with 2 megapixels, HDR imaging, and low-light enhancement.

[0022] In some embodiments of this utility model, the sensing device is a binocular camera, the baseline distance between the two cameras is 120mm, and the depth measurement accuracy is ±2cm.

[0023] In some embodiments of this utility model, the trajectory segmentation generation mechanism adopts a six-core processor, is equipped with 32GB of memory and 512GB of solid-state storage, and also has a time synchronization circuit, a filtering circuit and a clustering circuit. The trajectory segmentation generation mechanism is connected to multiple sensing devices via a 5G private network or optical fiber communication, and the data transmission latency is less than 50ms.

[0024] The beneficial effects of this utility model are as follows: By integrating the telescopic column, precision pitch angle adjustment component, limiting lateral base, and vibration damping component into one unit, this utility model achieves millimeter-level stepless height adjustment and ±0.5 level fine-tuning, ensuring that the millimeter-wave sensing device maintains optimal beam pointing under different road slopes, guardrail heights, and weather conditions. The internal wiring cavity completely hides and isolates the power line, data line, and grounding line from vibration, preventing exposed aging and damage from pulling. The bottom damping bushing-rubber pad structure can attenuate ≥18dB of traffic vibration, significantly reducing point cloud noise and measurement errors. Compared with traditional fixed brackets or brackets that rely on shims for fine-tuning, this utility model eliminates the need for secondary welding or on-site hole modification during installation, allowing for rapid positioning and locking, and significantly shortening maintenance and replacement time. Overall, it improves the detection accuracy, data continuity, and system reliability of the sensing device, reduces operation and maintenance costs, and meets the needs of intelligent transportation for all-weather, high-precision vehicle trajectory sensing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the adjustable bracket in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the cross-section of the adjustable bracket in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the multi-source sensing device trajectory splicing device in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the multi-source sensing device deployment in an embodiment of this utility model.

[0030] Figure descriptions: 1. Column; 11. Cable routing cavity; 21. Main support hole; 22. Auxiliary support hole; 23. Angle adjustment hole; 3. Pitch angle adjustment assembly; 4. Lateral base; 5. Sensing device; 51. Millimeter-wave radar; 52. Fisheye camera; 53. Binocular camera; 54. Trajectory segmentation generation mechanism. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 2 The adjustable bracket shown includes:

[0035] The column 1 is composed of upper and lower telescopic sections with a telescopic height of 2.5m to 4m. The top of the column 1 has an interface for installing the sensing device 5. The column 1 contains a wiring cavity 11, which houses the power cable, data cable, and grounding wire. The telescopic structure of the column 1 can take many forms, including telescopic via a sleeve-type hand-cranked screw, a gas spring, or a motor-driven structure. It should also be noted that the cross-section of the column 1 can be circular, square, or other shapes. The material of the column 1 can be anodized aluminum alloy, aluminum alloy, or other materials with surface coatings. The internal cross-section of the wiring cavity 11 can be circular, square, or other shapes. A sealing structure can also be provided inside the wiring cavity 11.

[0036] The pitch angle adjustment component is located between the column 1 and the sensing device 5, and can rotate 360° between itself and the column 1. It should be noted that the pitch angle adjustment component can take many forms, including gear and rack adjustment, universal ball joint and threaded clamping ring, hydraulic damping hinge, and digital angle encoder, among others. Similarly, the 360° rotation between the pitch angle adjustment component and the column 1 allows for adjustment of the direction and angle of the sensing device 5's image capture according to different angle requirements during actual use. Furthermore, the angle can be adjusted in real-time based on changes in the shooting angle.

[0037] A horizontal base 4 is connected between the sensing device 5 and the pitch angle adjustment component, and the sensing device 5 is mounted on the horizontal base 4;

[0038] The vibration damping assembly is installed at the bottom of column 1 and connected to the ground. It should be noted that the vibration damping assembly can take many forms, including nitrile rubber shear pads, combinations of steel springs and viscous dampers, inert fluid damping tanks and hinged base plates, or other forms. Furthermore, the connection to the ground can be a combination of embedded parts and high-strength anchor bolts, adjustable expansion sleeves and anchor nuts, or even a locking pin installed at the bottom of the vibration damping assembly.

[0039] This invention integrates the telescopic column 1, precision pitch angle adjustment component, limiting lateral base 4, and vibration damping component into one unit, achieving millimeter-level stepless height adjustment and ±0.5 level fine-tuning. This ensures that the millimeter-wave sensing device 5 maintains optimal beam pointing under different road slopes, guardrail heights, and weather conditions. The internal wiring cavity 11 completely hides and isolates the power cable, data cable, and grounding cable from vibration, preventing exposure, aging, and damage from pulling. The bottom damping bushing-rubber pad structure can attenuate ≥18dB of traffic vibration, significantly reducing point cloud noise and measurement errors. Compared with traditional fixed brackets or brackets that rely on shims for fine-tuning, this invention eliminates the need for secondary welding or on-site hole modification during installation, allowing for rapid positioning and locking, and significantly shortening maintenance and replacement time. Overall, it improves the detection accuracy, data continuity, and system reliability of the sensing device 5, reduces operation and maintenance costs, and meets the needs of intelligent transportation for all-weather, high-precision vehicle trajectory perception.

[0040] In some embodiments of this utility model, the column 1 is made of aluminum alloy, and the cross-section of the cable routing cavity 11 is not less than 30mm × 20mm. The connection between the column 1 and the pitch angle adjustment component also has multiple main support holes 21 with a diameter of 5cm and auxiliary support holes 22 with a diameter of 3.2cm. The main support holes 21 and auxiliary support holes 22 are evenly distributed around the circumference of the column 1. The angle adjustment hole 23 has a diameter of 2.3cm. Traditional brackets often use steel or iron, which are prone to corrosion and excessive weight when exposed to environments with high humidity, affecting installation stability and transportation costs. In contrast, aluminum alloy has excellent corrosion resistance and is lightweight and high-strength, significantly reducing the risk of structural aging during long-term use, while ensuring good load-bearing performance under traffic pressure and vibration. The internal cable routing cavity 11 of not less than 30mm × 20mm in the column 1 can fully accommodate various cables required by the sensing device 5, avoiding damage and interference caused by exposed cables, and achieving safe and neat cable management. The main support hole 21 and auxiliary support hole 22 at the connection point have precise diameter specifications and a uniform distribution, providing a multi-point fixing solution, enhancing the connection stability between the bracket and the pitch angle adjustment component, and meeting the needs for rapid adjustment and precise positioning. The flexibility provided by the various hole positions makes the installation process more efficient and easily adaptable to the requirements of different sensing devices 5 and sites. This design not only ensures that the bracket can be compatible with different types of sensing devices 5, but also facilitates subsequent maintenance and upgrades, reducing the significant construction and time costs required for rewiring and equipment replacement with traditional brackets.

[0041] In some embodiments of this invention, the vibration damping component includes a damping bushing and a rubber damping pad. The damping bushing, through its special material and structural design, effectively absorbs and attenuates the impact force caused by vehicle passage or environmental vibration, thereby reducing equipment displacement and vibration. The rubber damping pad further enhances the effect of the vibration damping component; its elastic properties allow the support to provide flexible buffering when subjected to vibration, reducing the amplitude of fluctuations. This not only protects the sensing device 5 but also improves the stability and accuracy of the entire traffic monitoring system.

[0042] In some embodiments of this invention, the pitch angle adjustment component has an angle adjustment range of ±15°. The transverse base 4 is provided with a limiting groove, allowing the sensing device 5 to form a 25° angle with the ground during installation. The pitch angle adjustment component also has a horizontal fine-tuning bolt, allowing the horizontal angle to be finely adjusted and locked within a range of ±0.5°. Precise positioning and angle adjustment are crucial for ensuring the sensing device 5 achieves optimal detection performance. Traditional supports are typically fixed structures or rely on manual fine-tuning, resulting in limited angle adjustment ranges and insufficient adjustment precision to meet the stringent requirements of the millimeter-wave sensing device 5 for detection direction. This limitation may prevent the sensing device 5's beam from effectively covering the target area, reducing the accuracy of data acquisition. By precisely controlling the pitch angle of the sensing device 5, the device can adapt to different slopes and altitudes, thereby maintaining beam alignment with the target.

[0043] According to the second aspect of this utility model, as Figure 3 , Figure 4 As shown, a multi-source sensing device trajectory stitching device is also provided, comprising:

[0044] Multiple adjustable supports arranged at equal intervals;

[0045] Sensing device 5 mounted on an adjustable bracket;

[0046] The trajectory segmentation generation mechanism 54 is connected to the sensing device 5 and generates a trajectory from the information collected by the sensing device 5.

[0047] The trajectory stitching mechanism collects information from the trajectory segmentation generation mechanism 54 and outputs lane-level continuous vehicle trajectory data.

[0048] The device first uses multiple equidistantly arranged adjustable supports to ensure that the sensing devices 5 can be evenly distributed throughout the monitored road section, covering a wider area, and providing a stable and adjustable mounting base for each sensing device 5. Compared to the traditional single-point fixing method of supports, this multi-point support arrangement greatly improves the continuity of the detection range and reduces the probability of monitoring blind spots. The sensing devices 5 on the supports generate the information collected by the sensing devices 5 in real time through the trajectory segmentation generation mechanism 54. This mechanism ensures that each unit sensing device 5 can independently and efficiently capture the vehicle's motion state and position data, laying a solid foundation for subsequent processing. The trajectory stitching mechanism can integrate the segmented trajectory information, and by stitching the information collected by different sensing devices 5, complete lane-level continuous vehicle trajectory data is finally generated. This allows the traffic management system to obtain accurate road vehicle flow maps at any time, achieving comprehensive control over vehicle movement.

[0049] In some embodiments of this invention, the distance between two adjacent adjustable supports is 500±50 meters. By setting the distance between two adjacent adjustable supports to 500±50 meters, this precise arrangement standard enables the sensing devices 5 to form a uniform coverage network throughout the monitored road section. Through scientific calculation and practical verification, this distance effectively optimizes the detection range and overlap area of ​​the sensing devices 5, ensuring that each sensing device 5 can not only work independently but also form a data closure with neighboring devices, reducing monitoring gaps and ensuring overall data continuity. This distance design not only considers the effective coverage of the road by the devices but also avoids device interference caused by supports being too close together and monitoring gaps caused by supports being too far apart, providing ample operating space for each monitoring unit. This contrasts sharply with the traditional method of arbitrarily installing sensing devices 5, enhancing the detection accuracy and reliability of the sensing devices 5.

[0050] In the multi-source sensing device 5 of this utility model, there can be many embodiments, including a combination of Embodiment 1, Embodiment 2 and Embodiment 3, a combination of Embodiment 1 and Embodiment 2, a combination of Embodiment 2 and Embodiment 3, a combination of Embodiment 1 and Embodiment 3, or other combinations of sensing devices 5 that can be used.

[0051] In Example 1, the sensing device 5 is a 77GHz millimeter-wave radar 51 with a detection range of 300 meters, a speed accuracy of ±0.05 km / h, and an angle measurement accuracy of ±0.1°. The millimeter-wave radar 51, with its high frequency characteristics, exhibits excellent detection stability and accuracy. Specifically, in these embodiments, the 77GHz millimeter-wave radar 51 provides a detection range of up to 300 meters, enabling the device to cover a wider area. This is crucial for real-time monitoring and management of traffic flow. Furthermore, the radar's speed measurement accuracy reaches ±0.05 km / h, and its angle measurement accuracy reaches ±0.1°, ensuring the precision and detail of traffic condition perception, effectively identifying vehicle speed changes and movement directions. Compared to traditional sensing devices 5, this high-frequency millimeter-wave radar 51 not only improves detection capability and accuracy but also reduces measurement errors caused by environmental interference, especially maintaining stable operation under adverse weather conditions such as rain and fog. This means the system can continuously provide reliable data, supporting traffic management departments in making more efficient decisions. By fusing high-precision sensor data, it further facilitates deep data integration, providing more targeted control measures for intelligent transportation.

[0052] In Example 2, the sensing device 5 is a fisheye camera 52, featuring 2 megapixels, HDR imaging, and low-light enhancement. The main advantage of the fisheye camera 52 lies in its wide field of view, covering a larger scene area, which is highly beneficial for monitoring traffic flow and dynamic changes. The 2-megapixel resolution ensures high-quality image acquisition, maintaining clear details even during large-scale monitoring. In particular, equipped with HDR imaging technology, the fisheye camera 52 provides balanced image quality in environments with alternating bright and shadow conditions, thereby improving the comprehensiveness and accuracy of traffic monitoring. The low-light enhancement function allows the fisheye camera 52 to capture effective image information even at night or in low-light conditions. This feature significantly improves the performance issues of traditional cameras operating at night, making all-weather monitoring possible and providing reliable data support for nighttime traffic management. Compared to traditional cameras, the superior performance of the fisheye camera 52 in wide-angle and low-light environments is a significant difference. It not only expands the monitoring field of view but also ensures high-precision data acquisition through advanced imaging technology, contributing to real-time traffic status identification and analysis in complex scenarios. These improvements enable intelligent transportation systems to monitor traffic conditions and identify anomalies more effectively, thereby enhancing the safety and smoothness of traffic operations.

[0053] In Example 3, the sensing device 5 is a binocular camera 53 with a baseline distance of 120mm between the two cameras and a depth measurement accuracy of ±2cm. Through the collaborative work of the two lenses, the binocular camera 53 utilizes the baseline distance to create parallax when capturing a scene, thereby accurately measuring the depth of objects. With a baseline distance set at 120mm, and through specific design calculations, a depth measurement accuracy of ±2cm can be achieved. This high-precision depth perception enables the device to accurately determine the relative position and distance of vehicles and pedestrians, which is crucial for real-time traffic threat detection and collision warning. The binocular camera 53 significantly outperforms traditional cameras in terms of depth measurement accuracy and superior stereoscopic perception performance. Specific depth information enhances the stability of the algorithm and the accuracy of judgment. Its application not only brings a qualitative improvement in data acquisition but also provides reliable decision-making basis in traffic management strategy formulation. This ultimately promotes traffic flow optimization and reduces the incidence of traffic accidents.

[0054] In some embodiments of this invention, the trajectory segmentation generation mechanism 54 employs a hexa-core processor, is equipped with 32GB of RAM and 512GB of solid-state storage, and also features a time synchronization circuit, a filtering circuit, and a clustering circuit. All circuits are integrated on the same processing board in PCB form, providing powerful computing capabilities and data processing speed. This high-performance combination ensures that the system can process and store large amounts of data quickly and smoothly, significantly improving real-time performance and computational efficiency. The time synchronization circuit ensures accurate data alignment between different sensing devices (5 units), avoiding time deviations during processing; the filtering circuit effectively removes environmental noise and interference signals, improving data purity; and through intelligent grouping and analysis of vehicle trajectory data, more accurate dynamic tracking is achieved.

[0055] The trajectory segmentation generation mechanism 54 is connected to multiple sensing devices 5 via a 5G private network or fiber optic communication, with a data transmission latency of less than 50ms. This invention significantly enhances the speed and reliability of data transmission by using a 5G private network or fiber optic communication connection between the trajectory segmentation generation mechanism 54 and the multiple sensing devices 5. The 5G private network provides a high-bandwidth, low-latency communication environment, enabling data transmission latency to be maintained at less than 50ms, achieving near real-time synchronization.

[0056] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable bracket, characterized in that, include: The column is composed of upper and lower telescopic sections with a telescopic height of 2.5m to 4m. The top of the column is provided with a sensing device installation interface. The inside of the column has a wiring cavity that accommodates power lines, data lines and grounding wires. A pitch angle adjustment component is disposed between the column and the sensing device, and the pitch angle adjustment component and the column can rotate 360°. A lateral base is connected between the sensing device and the pitch angle adjustment assembly, and the sensing device is mounted on the lateral base. The vibration damping component is installed at the bottom of the column and connected to the ground.

2. The adjustable bracket according to claim 1, characterized in that, The column is made of aluminum alloy, the cross-section of the wiring cavity is not less than 30mm×20mm, and the connection between the column and the pitch angle adjustment component also has multiple main support holes with a diameter of 5cm and auxiliary support holes with a diameter of 3.2cm. The main support holes and the auxiliary support holes are evenly distributed around the circumference of the column, and the angle adjustment hole has a diameter of 2.3cm.

3. The adjustable bracket according to claim 1, characterized in that, The vibration damping assembly includes a damping bushing and a rubber vibration damping pad.

4. The adjustable bracket according to claim 1, characterized in that, The pitch angle adjustment component has an angle adjustment range of ±15°. The horizontal base is provided with a limiting groove so that the sensing device forms a 25° angle with the ground when installed. The pitch angle adjustment component also has a horizontal fine-tuning bolt so that the horizontal angle can be finely adjusted and locked within a range of ±0.5°.

5. A trajectory stitching device for multi-source sensing equipment, characterized in that, Using the adjustable bracket as described in any one of claims 1 to 4, comprising: Multiple adjustable supports arranged at equal intervals; Sensing devices mounted on the adjustable bracket; A trajectory segmentation generation mechanism is connected to the sensing device and generates a trajectory from the information collected by the sensing device; The trajectory stitching mechanism stitches together the information collected in the trajectory segmentation generation mechanism and outputs lane-level continuous vehicle trajectory data.

6. The multi-source sensing device trajectory stitching device according to claim 5, characterized in that, The distance between two adjacent adjustable supports is 500±50 meters.

7. The multi-source sensing device trajectory stitching device according to claim 5, characterized in that, The sensing device is a 77GHz millimeter-wave radar with a detection range of 300 meters, a speed accuracy of ±0.05km / h, and an angle measurement accuracy of ±0.1°.

8. The multi-source sensing device trajectory stitching device according to claim 5, characterized in that, The sensing device is a fisheye camera with 2 megapixels, HDR imaging, and low-light enhancement.

9. The multi-source sensing device trajectory stitching device according to claim 5, characterized in that, The sensing device is a binocular camera with a baseline distance of 120mm between the two cameras and a depth measurement accuracy of ±2cm.

10. The multi-source sensing device trajectory stitching device according to claim 5, characterized in that, The trajectory segmentation generation mechanism uses a six-core processor, is equipped with 32GB of RAM and 512GB of solid-state storage, and also has a time synchronization circuit, a filtering circuit and a clustering circuit. The trajectory segmentation generation mechanism is connected to multiple sensing devices via a 5G private network or fiber optic communication, and the data transmission latency is less than 50ms.

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