Urban height-limiting anti-collision early warning device
By combining laser sensors and cameras, the light is projected towards the light group to provide early warning for over-height vehicles, solving the collision risks of traditional height-restricted facilities in bad weather and driver negligence, and achieving a safe and effective early warning effect.
Patent Information
- Application Number
- CN202510850202.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2025-09-16
AI Technical Summary
Existing height-limited facilities are prone to causing violent collisions when vehicles exceed speed or drivers are negligent. The risk of accidents is especially high at night, in rainy and foggy weather, or when drivers are fatigued. Traditional warning methods cannot effectively avoid misjudgments and traffic accidents caused by changes in truck loading height.
A laser sensor is used to detect vehicle height, a camera obtains the position of the cockpit, and the angle adjustment component controls the direction of the light group to project light, providing color-coded warnings to the driver of the over-height vehicle, the vehicles in front, and the rear. A Fresnel lens refracts the light source to ensure that only the driver of the over-height vehicle sees the warning, avoiding interference with other drivers.
It achieves effective early warning for over-height vehicles, reduces the risk of vehicle collisions, lowers the probability of traffic accidents, improves safety at night and in bad weather, and ensures smooth traffic.
Smart Images
Figure CN120649398A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of early warning devices, and in particular relates to an urban height-limited anti-collision early warning device. Background Art
[0002] Height-limiting protective facilities are commonly installed on urban roads, highways, tunnels, bridges, underground garages, and other locations to protect transportation infrastructure (such as bridge beams, tunnel vaults, and pipeline supports) from damage caused by overheight vehicles. Traditional height-limiting measures mainly include two types: fixed height limit frames and warning signs. Fixed height limit frames often use rigid beam structures (such as steel beams) to physically force overheight vehicles to stop; warning signs rely on drivers to observe height limit signs and autonomously avoid them. However, existing rigid height limit frames are prone to violent collisions when vehicles exceed speed or drivers are negligent, causing not only vehicle damage, cargo overturning, and traffic disruptions, but also potential threats to personal safety. Static signs and fixed frames cannot provide active warnings, especially at night, in rainy and foggy weather, or when the driver is fatigued, and the risk of accidents increases dramatically.
[0003] However, vehicles that exceed the height limit are generally transport vehicles such as trucks. When loading goods in the open cargo compartment of a truck, the height of the goods may exceed the height of the truck body. The total height of the truck will change each time the goods are loaded. Once the truck driver is negligent and the cargo loading height exceeds the limit, the driver will make a misjudgment when transporting the goods through the height limit equipment with height markings, and then hit the height limit equipment. If a sensor is installed on the height limit equipment to detect and display whether the corresponding vehicle is overheight through a warning indicator light, it will be difficult to indicate the corresponding driver when there are many vehicles. If the corresponding license plate number is displayed on the display screen for prompting, it may distract other traffic participants by observing the license plate number on the display screen. Therefore, the above-mentioned traditional warning methods all have limitations.
[0004] In order to provide early warning to all vehicles on the road while ensuring safety, an urban height restriction anti-collision warning device is proposed. Summary of the Invention
[0005] In order to solve the above problems existing in the prior art, the present invention provides a city height restriction anti-collision warning device.
[0006] The purpose of the present invention can be achieved through the following technical solutions: A city height restriction anti-collision warning device of the present invention includes an anti-collision bracket, on which a directional light group, a laser sensor and a camera are provided, the directional light group, the laser sensor and the camera are all electrically connected to a control device, an angle adjustment component is provided between the directional light group and the anti-collision bracket, the laser sensor is horizontally installed on the anti-collision bracket for detecting the height of a target vehicle, the camera detects the position of the target vehicle's cockpit, and the control device adjusts the angle adjustment component according to the detection data of the camera to point the directional light group toward the cockpit of the target vehicle.
[0007] Furthermore, a Fresnel lens and a light source are provided in the directional light group, and the Fresnel lens refracts the light source and projects the light source straightly in a designated direction.
[0008] Furthermore, the directional light group includes a vertical light box, and the vertical light box has light sources of three different colors distributed from top to bottom. The three different colors of directional lights from top to bottom in the vertical light box are respectively projected to the rear area of the target vehicle, the target vehicle area and the front area of the target vehicle.
[0009] Furthermore, the angle adjustment assembly includes a first motor and a first gear, the first gear is vertically arranged on the vertical light box, and the first gear is meshed with the output shaft of the first motor for transmission.
[0010] Furthermore, the directional light group includes a horizontal light box, the angle adjustment component also includes a second motor, a second gear is horizontally arranged on the horizontal light box, the output shaft of the second motor is engaged with the second gear and drives the horizontal light box to adjust the angle horizontally, and the light of the horizontal light box moves synchronously with the target vehicle rear area of the vertical light box, and the horizontal light box has several light sources distributed horizontally, and the horizontal projection angles of the light of the several light sources of the horizontal light box increase successively.
[0011] Furthermore, the horizontal light box is parallel to the light source in the middle of the vertical light box.
[0012] Furthermore, there are four groups of light sources on the horizontal light box.
[0013] Furthermore, the horizontal projection angle of the light source on the horizontal light box increases sequentially from the side away from the vertical light box to the side close to the vertical light box.
[0014] The beneficial effects of the present invention are: A laser sensor mounted horizontally on the crossbar of the anti-collision bracket projects a laser horizontally to detect the vehicle's height. If the laser is reflected, the horizontal target vehicle is higher than the anti-collision bracket. The laser sensor also simultaneously detects the distance to the vehicle. A camera is used to obtain the position of the vehicle's cockpit, and then the angle adjustment component adjusts the angle of the light directed to the directional lighting group. Specifically, the directional lighting group is equipped with a Fresnel lens and a light source. The Fresnel lens refracts the light source and projects it straight in the specified direction. The light projected by the directional lighting group can only be observed by the driver of the target vehicle, thus serving as a warning only to target vehicles exceeding the height limit, without causing interference to other drivers. The horizontal projection angle of the light source on the horizontal light box increases from the side away from the vertical light box to the side close to the vertical light box. When the vehicle is at a distance behind the target vehicle, the four light sources on the horizontal light box can be seen, indicating that the vehicle is in a relatively safe area farther away from the target vehicle. However, as the distance to the target vehicle gradually decreases, the light source on the horizontal light box that can be seen gradually decreases, indicating that the distance to the target vehicle is decreasing and the vehicle is in a more dangerous area. Vehicles in the area behind the target vehicle can make judgments and change lanes in a timely manner based on the number of light sources on the horizontal light box that can be observed. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.
[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the projection range of the vertical light box of the present invention; Figure 3 This is a schematic diagram of the projection range of the first light source of the horizontal light box of the present invention; Figure 4 This is a schematic diagram of the projection range of the second light source of the horizontal light box of the present invention; Figure 5 This is a schematic diagram of the projection range of the third light source of the horizontal light box of the present invention; Figure 6 This is a schematic diagram of the projection range of the fourth light source of the horizontal light box of the present invention; Explanation of the accompanying drawings: 1. Anti-collision bracket; 2. Laser sensor; 3. Camera; 4. Vertical light box; 5. Horizontal light box; 6. First motor; 7. First gear; 8. Area in front of target vehicle; 9. Area of target vehicle; 10. Area behind target vehicle; 11. Second motor; 12. Second gear. DETAILED DESCRIPTION
[0017] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0018] like Figures 1-6 As shown, an urban height restriction anti-collision warning device of the present invention includes an anti-collision bracket 1, on which a directional light group, a laser sensor 2 and a camera 3 are provided. The directional light group, the laser sensor 2 and the camera 3 are all electrically connected to a control device. An angle adjustment component is provided between the directional light group and the anti-collision bracket 1. The laser sensor 2 is horizontally mounted on the anti-collision bracket 1 for detecting the height of the target vehicle. The camera 3 detects the position of the target vehicle's cockpit. The control device adjusts the angle adjustment component according to the detection data of the camera 3 to point the directional light group toward the cockpit of the target vehicle. If a sensor is installed on the height restriction device to detect and display the corresponding vehicle's height through a warning indicator light, it will be difficult to indicate the corresponding driver when there are many vehicles. If the corresponding license plate number is displayed on the display screen, it may distract other traffic participants because they are looking at the license plate number on the display screen. To provide a warning to drivers of vehicles exceeding the height limit, a laser sensor 2, mounted horizontally on the crossbeam of the anti-collision bracket 1, projects a laser beam horizontally to detect the vehicle's height. If the laser is reflected, it indicates the target vehicle is higher than the anti-collision bracket 1. Laser sensor 2 also simultaneously detects the vehicle's distance. Camera 3 captures the vehicle's cockpit position, and then adjusts the angle of the directional light assembly using an angle adjustment component. Specifically, the directional light assembly houses a Fresnel lens and a light source. The Fresnel lens refracts the light and projects it straight in the specified direction. The light projected by the directional light assembly can only be observed by the driver of the target vehicle, thus providing a warning only to the target vehicle exceeding the height limit and not disturbing other drivers.
[0019] Since in the above embodiment, the light of the directional light group can only be observed by the driver of the target vehicle that exceeds the height limit, however, if the driver of the target vehicle does not stop or react in time, it will collide with the anti-collision bracket 1, which will cause a threat to the vehicles in front and behind it. If the vehicle behind does not react in time after the target vehicle hits it, it may cause a rear-end collision. Therefore, in order to serve as a warning to other drivers and prevent the expansion of traffic accidents, in one embodiment, the directional light group includes a vertical light box 4, and the vertical light box 4 has three light sources of different colors distributed from top to bottom. The three different color directional lights in the vertical light box 4 are respectively projected onto the rear area 10 of the target vehicle, the target vehicle area 9 and the front area 8 of the target vehicle. The three colors of light sources distributed vertically are projected onto the longitudinal direction of the road and distributed in sequence. Since the colors observed by drivers of vehicles at different positions are different, corresponding processing can be performed according to the status of the vehicle. The lights projected onto the target vehicle rear area 10, the target vehicle area 9 and the target vehicle front area 8 can be yellow, red and green respectively. If the driver of the target vehicle that exceeds the height limit can see the red light, the driver can determine that it is overheight. If the driver in the area 8 in front of the target vehicle observes the green light, the driver can determine that it is in a relatively safe area. If the driver in the area 10 behind the target vehicle observes the yellow light, it means that it is in a relatively dangerous area. In order to prevent the impact of the vehicle in front that exceeds the height limit from being affected by the possible collision due to failure to deal with it in time, it is possible to avoid rear-end collisions by changing lanes in time.
[0020] Specifically, the angle adjustment component includes a first motor 6 and a first gear 7. The first gear 7 is vertically arranged on the vertical light box 4, and the first gear 7 is engaged with the output shaft of the first motor 6 for transmission. Since the target vehicle will gradually approach the anti-collision bracket 1 during driving, it is necessary to use the first motor 6 and the first gear 7 to adjust the angle of the vertical light box 4 in real time according to the laser sensor 2 and the camera 3, so that the driver in the target vehicle area 9 can continue to observe the warning light on the vertical light box 4 and take corresponding measures in time to prevent collision with the anti-collision bracket 1.
[0021] Since the vehicle behind the target vehicle that exceeds the height limit is in a relatively more dangerous state, in order to be able to provide a more accurate early warning reminder to it, in addition to letting it know that the vehicle in front is the target vehicle that exceeds the height limit, it can also be provided with a reminder of the distance from the target vehicle. Specifically, the directional light group includes a horizontal light box 5, and the angle adjustment component also includes a second motor 11. A second gear 12 is horizontally arranged on the horizontal light box 5. The output shaft of the second motor 11 meshes with the second gear 12 and drives the horizontal light box 5 to adjust the angle horizontally, and the light of the horizontal light box 5 moves synchronously with the target vehicle rear area 10 of the vertical light box 4. The horizontal light box 5 is horizontally distributed with a plurality of light sources, and the horizontal projection angles of the light of the plurality of light sources of the horizontal light box 5 increase sequentially; Since there are multiple light sources arranged in the horizontal direction on the horizontal light, and the horizontal projection angles of the light from several light sources increase successively, the vehicle in the area 10 behind the target vehicle can judge the approximate distance from the target vehicle based on the different numbers of lights on the horizontal light box 5 observed. Its main function is to prevent multiple vehicles from appearing in front, while the vehicle in the area 10 behind the target vehicle is difficult to judge the specific target vehicle that exceeds the height limit. When the three light sources of the vertical light box 4 are projected onto the road, three areas distributed along the longitudinal direction of the road are formed, and the light source projected by the horizontal light box 5 is in the area 10 behind the target vehicle projected by the vertical light box 4 and behind the area 10 behind the target vehicle. The two light boxes can keep moving synchronously by instructing the first motor 6 and the second motor 11 to be adjusted in real time by the control device.
[0022] At the same time, the horizontal light box 5 is parallel to the vertical light box 4 with the light source in the middle; the horizontal light box 5 can be used as the baseline of the vertical light box 4. If the vehicle is in the area 10 behind the target vehicle, it can observe the yellow light, and the yellow light is above the horizontal light box 5, and the vehicle is in the area 8 in front of the target vehicle, it can observe the green light, and the green light is below the horizontal light box 5. The accuracy of observation is improved through multiple judgments.
[0023] Specifically, the horizontal light box 5 has four groups of light sources; the horizontal projection angles of the light sources on the horizontal light box 5 increase from the side away from the vertical light box 4 to the side close to the vertical light box 4. When the vehicle is at a relatively long distance behind the target vehicle 10, the four light sources on the horizontal light box 5 can be seen, indicating that the vehicle is in a relatively safe area farther from the target vehicle. However, as the distance to the target vehicle decreases, the number of light sources on the horizontal light box 5 that can be seen gradually decreases, indicating that the distance to the target vehicle is decreasing and the vehicle is in a more dangerous area. Vehicles in the area 10 behind the target vehicle can make decisions based on the number of light sources on the horizontal light box 5 that can be observed and can switch lanes in a timely manner.
[0024] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A city height restriction anti-collision warning device, characterized by: The anti-collision bracket includes a directional light group, a laser sensor and a camera, which are all electrically connected to a control device. An angle adjustment component is provided between the directional light group and the anti-collision bracket. The laser sensor is horizontally installed on the anti-collision bracket to detect the height of the target vehicle, and the camera detects the position of the cockpit of the target vehicle. The control device adjusts the angle adjustment component according to the detection data of the camera to point the directional light group toward the cockpit of the target vehicle.
2. The urban height restriction collision avoidance warning device according to claim 1, characterized in that: A Fresnel lens and a light source are provided in the directional light group. The Fresnel lens refracts the light source and projects the light source straightly in a designated direction.
3. The urban height restriction anti-collision warning device according to claim 2, characterized in that: The directional light group includes a vertical light box, and the vertical light box has three light sources of different colors distributed from top to bottom. The three directional lights of different colors from top to bottom in the vertical light box are respectively projected to the rear area of the target vehicle, the target vehicle area and the front area of the target vehicle.
4. The urban height restriction collision avoidance warning device according to claim 3, characterized in that: The angle adjustment assembly includes a first motor and a first gear. The first gear is vertically arranged on the vertical light box, and the first gear is meshed with the output shaft of the first motor for transmission.
5. The urban height restriction anti-collision warning device according to claim 3, characterized in that: The directional light group includes a horizontal light box, and the angle adjustment component also includes a second motor. A second gear is horizontally arranged on the horizontal light box. The output shaft of the second motor meshes with the second gear and drives the horizontal light box to adjust the angle horizontally. The light of the horizontal light box moves synchronously with the target vehicle rear area of the vertical light box. The horizontal light box has several light sources distributed horizontally, and the horizontal projection angles of the light of the several light sources of the horizontal light box increase successively.
6. The urban height restriction collision avoidance warning device according to claim 5, characterized in that: The horizontal light box is parallel to the light source in the middle of the vertical light box.
7. The urban height restriction collision avoidance warning device according to claim 5, characterized in that: There are four groups of light sources on the horizontal light box.
8. The urban height restriction collision avoidance warning device according to claim 5, characterized in that: The horizontal projection angle of the light source on the horizontal light box increases sequentially from the side away from the vertical light box to the side close to the vertical light box.