A smart road early warning vehicle based on multi-sensor fusion

Abstract

This utility model relates to the field of road traffic safety early warning technology, and in particular to an intelligent road early warning vehicle based on multi-sensor fusion, comprising: a vehicle body; a warning sign disposed above the vehicle body with a gap between it and the vehicle body, and having a first cavity inside; a connecting T-shaped frame connected to both the vehicle body and the warning sign, including a first bracket fixedly connected to the warning sign and a second bracket connected to the vehicle body, the second bracket having several guide grooves; an environmental monitoring mechanism connected to the warning sign; and an early warning mechanism connected to the warning sign, including a display screen disposed on a first side of the warning sign for displaying warning information. This utility model solves the blind spot problem of traditional single-sensor environmental perception by using multi-view collaborative monitoring of a 360° panoramic camera, an AI camera, and a binocular positioning camera, achieving 360° blind-spot-free identification of abnormal road conditions.

Description

Technical Field

[0001] This utility model relates to the field of road traffic safety early warning technology, and in particular to an intelligent road early warning vehicle based on multi-sensor fusion. Background Technology

[0002] With the rapid development of transportation infrastructure construction, the demand for safety warning equipment in road construction and traffic accident handling is increasing. Traditional traffic cones mainly serve a marking function, with limited functionality, making them insufficient to meet the needs of complex road environments. In practical applications, construction workers need efficient and intelligent tools to improve road warning efficiency, prevent traffic accidents, and achieve intelligent collaboration between multiple traffic cone devices.

[0003] Chinese Patent Publication No. CN222619242U discloses a road warning device, including a vehicle body. A rotating frame is mounted on the upper surface of the vehicle body, and a warning structure is mounted on the rotating frame. The warning structure includes a display screen, red and blue flashing lights, an anti-fatigue laser light, and a speaker. The two sides of the display screen are movably connected to the rotating frame. The speaker is connected to the lower end of the display screen. The red and blue flashing lights are connected to both sides of the display screen, and the anti-fatigue laser light is connected to the upper end of the display screen. Two hydraulic rods are movable on the upper surface of the vehicle body, located on opposite sides of the vehicle body. One end of each hydraulic rod is movably connected to the upper surface of the vehicle body, and the other ends are movably connected to the two sides of their respective display screens. This device serves as a warning and can prevent secondary injuries to rescue personnel. However, this road warning device suffers from several drawbacks. It relies on a single sensor, leading to blind spots in environmental perception, a high false alarm rate in adverse weather conditions, and limited accuracy in positioning and obstacle detection. Ultimately, this results in long response delays and reduced overall system reliability. Utility Model Content

[0004] To address this issue, this invention provides an intelligent road early warning vehicle based on multi-sensor fusion, which overcomes the problems of existing technologies that rely on a single sensor, resulting in blind spots in environmental perception, high false alarm rates in severe weather, limited positioning and obstacle detection accuracy, and ultimately long response delays and reduced overall system reliability.

[0005] To achieve the above objectives, this utility model provides an intelligent road early warning vehicle based on multi-sensor fusion, comprising:

[0006] Vehicle body;

[0007] A warning sign is positioned above the vehicle body with a gap between it and the vehicle body, and has a first cavity inside it.

[0008] A connecting T-shaped frame is connected to the vehicle body and the warning sign respectively, including a first bracket fixedly connected to the warning sign and a second bracket connected to the vehicle body, the second bracket being provided with several guide grooves;

[0009] An environmental monitoring agency, which is connected to the warning sign, includes a 360° panoramic camera, an AI camera, a binocular positioning camera, a millimeter-wave radar, and a first ultrasonic sensor arranged sequentially from top to bottom in the first cavity;

[0010] The warning mechanism, which is connected to the warning sign, includes a display screen disposed on the first side of the warning sign for displaying warning information.

[0011] Furthermore, the warning mechanism, which is connected to the vehicle body, also includes a speaker disposed on the side of the vehicle body for emitting a warning audio signal.

[0012] Furthermore, the AI ​​camera, binocular positioning camera, and first ultrasonic sensor inside the first cavity are disposed on the second side of the warning sign, wherein the second side is the side of the warning sign that is away from the first side.

[0013] Furthermore, a second ultrasonic sensor is provided on the third side of the warning sign, and a third ultrasonic sensor is provided on the fourth side of the warning sign, wherein the third and fourth sides are the two sides between the first and second sides of the warning sign.

[0014] Furthermore, the vehicle body is also equipped with a communication antenna for transmitting and receiving information.

[0015] Furthermore, the vehicle body is also equipped with a GPS antenna for obtaining the vehicle's location.

[0016] Furthermore, the vehicle body is also equipped with a lidar for collecting point cloud data of the surrounding environment.

[0017] Furthermore, the flow guide grooves are disposed on both sides of the lidar.

[0018] Furthermore, several warning lights are provided on the periphery of the vehicle body.

[0019] Furthermore, an AR anti-reflective film is adhered to the surface of the display screen.

[0020] Compared with existing technologies, the beneficial effects of this invention are as follows: Because there is a gap between the warning sign and the vehicle body, airflow passes through this gap during vehicle movement. The airflow is guided to the sides of the lidar by the airflow guide channels located on the second bracket, preventing dust carried by the airflow from accumulating at the lidar and affecting its performance. Simultaneously, the airflow can collide and create turbulence in the gap, affecting the vehicle's stability; the airflow guide channels reduce this collision. When used in rainy weather, the airflow guide channels divert rainwater, preventing water accumulation on the second bracket and subsequent corrosion.

[0021] Furthermore, by using multi-view collaborative monitoring with 360° panoramic cameras, AI cameras, and binocular positioning cameras, the problem of blind spots in traditional single-sensor environmental perception has been solved, enabling 360° identification of abnormal road conditions without blind spots.

[0022] Furthermore, by combining millimeter-wave radar with a first ultrasonic sensor, a second ultrasonic sensor, and a third ultrasonic sensor, the problem of insufficient ranging accuracy under complex weather conditions is solved, and the reliability and response speed of obstacle detection are improved.

[0023] Furthermore, by fusing data from lidar and GPS antennas, the synchronization problem between vehicle positioning and environmental modeling was solved, enabling real-time road situation construction with centimeter-level accuracy.

[0024] Furthermore, the multimodal warning system using a display screen and speakers addresses the shortcomings of single warning methods being easily overlooked, thus improving the driver's perception efficiency of dangerous situations.

[0025] Furthermore, by treating the display screen surface with an AR anti-reflective film, the problem of poor visibility in strong light environments is solved, enabling clear information display all day long. Attached Figure Description

[0026] Figure 1 This is one of the partial structural schematic diagrams of an intelligent road early warning vehicle based on multi-sensor fusion according to an embodiment of this utility model;

[0027] Figure 2 This is the second partial structural schematic diagram of the intelligent road early warning vehicle based on multi-sensor fusion according to an embodiment of this utility model;

[0028] Figure 3 This is a side view of an intelligent road early warning vehicle based on multi-sensor fusion, according to an embodiment of the present invention.

[0029] Figure 4 This is a rear view of an intelligent road early warning vehicle based on multi-sensor fusion, according to an embodiment of the present invention.

[0030] In the diagram, 1-vehicle body, 2-warning sign, 3-360° panoramic camera, 4-AI camera, 5-binocular positioning camera, 6-first ultrasonic sensor, 7-display screen, 8-speaker, 9-second ultrasonic sensor, 10-third ultrasonic sensor, 11-communication antenna, 12-GPS antenna, 13-LiDAR, 14-warning light, 15-connecting T-frame, 151-first bracket, 152-second bracket, 16-guide channel. Detailed Implementation

[0031] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The figures shown are, respectively, a partial structural schematic diagram of an intelligent road early warning vehicle based on multi-sensor fusion according to an embodiment of this utility model, a partial structural schematic diagram, a side view, and a rear view.

[0036] This utility model embodiment is based on a multi-sensor fusion-based intelligent road early warning vehicle, including:

[0037] Vehicle body 1;

[0038] Warning sign 2 is positioned above the vehicle body 1 with a gap between it and the vehicle body 1, and has a first cavity inside.

[0039] The connecting T-shaped frame 15 is connected to the vehicle body 1 and the warning sign 2 respectively. It includes a first bracket 151 fixedly connected to the warning sign 2 and a second bracket 152 connected to the vehicle body 1. The second bracket 152 is provided with a plurality of guide grooves 16.

[0040] An environmental monitoring agency, which is connected to the warning sign 2, includes a 360° panoramic camera 3, an AI camera 4, a binocular positioning camera 5, a millimeter-wave radar, and a first ultrasonic sensor 6, which are arranged sequentially from top to bottom in the first cavity.

[0041] The warning mechanism, which is connected to the warning sign 2, includes a display screen 7 installed on the first side of the warning sign 2 for displaying warning information.

[0042] In this embodiment, due to the gap between the warning sign 2 and the vehicle body 1, airflow passes through the gap as the vehicle body 1 moves. The airflow is guided to the sides of the lidar 13 by the guide channels 16 located on both sides of the lidar 13 on the second bracket 152, preventing dust carried by the airflow from accumulating at the lidar 13 and affecting its performance. Simultaneously, the airflow can collide and create turbulence in the gap, affecting the stability of the vehicle body 1. The guide channels 16 reduce this collision. When used in rainy weather, the guide channels 16 divert rainwater, preventing it from accumulating on the second bracket 152 and causing corrosion.

[0043] Specifically, the millimeter-wave radar is used to detect dynamic obstacles and the distance to oncoming vehicles in real time.

[0044] The AI ​​camera 4 is used to identify vehicle type, speed, and abnormal behavior.

[0045] The binocular positioning camera 5 is used for 3D environment modeling and high-precision positioning.

[0046] The 360° panoramic camera 3 is used to provide all-round monitoring and reduce blind spots.

[0047] The first ultrasonic sensor 6 is used to accurately detect nearby obstacles, assisting the vehicle body 1 in operating in confined spaces.

[0048] Specifically, the warning mechanism, which is connected to the vehicle body 1, also includes a speaker 8 disposed on the side of the vehicle body 1 for emitting a warning audio.

[0049] Specifically, the AI ​​camera 4, the binocular positioning camera 5, and the first ultrasonic sensor 6 are located on the second side of the warning sign 2 within the first cavity, wherein the second side is the side of the warning sign 2 that is away from the first side.

[0050] Specifically, a second ultrasonic sensor 9 is provided on the third side of the warning sign 2, and a third ultrasonic sensor 10 is provided on the fourth side of the warning sign 2. The third and fourth sides are the two sides between the first and second sides of the warning sign 2.

[0051] Specifically, the vehicle body 1 is also equipped with a communication antenna 11 for transmitting and receiving information.

[0052] Specifically, the vehicle body 1 is also equipped with a GPS antenna 12 for obtaining the location of the vehicle body 1.

[0053] Specifically, the vehicle body 1 is also equipped with a lidar 13 for collecting point cloud data of the environment around the vehicle body 1, wherein the lidar 13 is positioned above the vehicle body 1.

[0054] Specifically, the flow guide 16 is disposed on both sides of the lidar 13.

[0055] Specifically, the vehicle body 1 is provided with several warning lights 14 on its periphery.

[0056] Specifically, the vehicle body 1 is equipped with an energy storage component that provides energy for the movement of the vehicle body 1.

[0057] In this embodiment, the energy storage component can be selected from lithium batteries, lead-acid batteries, sodium-ion batteries, and potassium-ion batteries, with lithium batteries being the preferred type. Those skilled in the art can make adaptive adjustments to the type of energy storage component according to the actual application environment and scenario.

[0058] Specifically, the surface of the display screen 7 is coated with an AR anti-reflective film.

[0059] In this implementation, the problem of blind spots in traditional single-sensor environmental perception is solved by multi-view collaborative monitoring using a 360° panoramic camera 3, an AI camera 4, and a binocular positioning camera 5, thus achieving 360° blind-spot-free identification of abnormal road conditions.

[0060] In this implementation, the combination deployment of millimeter-wave radar with the first ultrasonic sensor 6, the second ultrasonic sensor 9, and the third ultrasonic sensor 10 solves the problem of insufficient ranging accuracy under complex weather conditions and improves the reliability and response speed of obstacle detection.

[0061] In this implementation, the synchronization problem between vehicle positioning and environmental modeling was solved by data fusion of LiDAR 13 and GPS antenna 12, and real-time road situation construction with centimeter-level accuracy was achieved.

[0062] In this implementation, the multimodal warning system using the display screen 7 and speaker 8 solves the problem that a single warning method is easily overlooked, and improves the driver's perception efficiency of dangerous situations.

[0063] In this implementation, the surface of the display screen 7 was treated with an AR anti-reflective film, which solved the problem of poor visibility in strong light environments and enabled clear information display in all weather conditions.

[0064] In this embodiment, an infrared touch grid sensor is arranged on the edge of the display screen 7 to trigger position detection when a foreign object blocks the light. When a foreign object is detected, the vehicle body 1 starts to rotate in place and uses centrifugal force to throw the foreign object out.

[0065] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An intelligent road early warning vehicle based on multi-sensor fusion, characterized in that, include: Vehicle body; A warning sign is positioned above the vehicle body with a gap between it and the vehicle body, and has a first cavity inside it. A connecting T-shaped frame is connected to the vehicle body and the warning sign respectively, including a first bracket fixedly connected to the warning sign and a second bracket connected to the vehicle body, the second bracket being provided with several guide grooves; An environmental monitoring agency, which is connected to the warning sign, includes a 360° panoramic camera, an AI camera, a binocular positioning camera, a millimeter-wave radar, and a first ultrasonic sensor arranged sequentially from top to bottom in the first cavity; The warning mechanism, which is connected to the warning sign, includes a display screen disposed on the first side of the warning sign for displaying warning information.

2. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 1, characterized in that, The warning mechanism is connected to the vehicle body and also includes a speaker installed on the side of the vehicle body for emitting warning audio.

3. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 2, characterized in that, The AI ​​camera, binocular positioning camera, and first ultrasonic sensor inside the first cavity are disposed on the second side of the warning sign, wherein the second side is the side of the warning sign that is away from the first side.

4. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 3, characterized in that, A second ultrasonic sensor is provided on the third side of the warning sign, and a third ultrasonic sensor is provided on the fourth side of the warning sign. The third and fourth sides are the two sides between the first and second sides of the warning sign.

5. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 4, characterized in that, The vehicle body is also equipped with a communication antenna for sending and receiving information.

6. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 5, characterized in that, The vehicle body is also equipped with a GPS antenna for obtaining the vehicle's location.

7. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 6, characterized in that, The vehicle body is also equipped with a lidar for collecting point cloud data of the surrounding environment.

8. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 7, characterized in that, The flow guide channels are located on both sides of the lidar.

9. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 8, characterized in that, Several warning lights are provided on the periphery of the vehicle body.

10. The intelligent road early warning vehicle based on multi-sensor fusion according to claim 9, characterized in that, An AR anti-reflective film is adhered to the surface of the display screen.

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