Intelligent detection and early warning system for tunnel pavement foreign matters
By installing ranging terminals and warning light systems inside the tunnel, the problem of foreign objects affecting driving safety in the tunnel has been solved. This enables timely detection and warning of foreign objects, avoids false alarms, and ensures driving safety.
Patent Information
- Application Number
- CN202423217817.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Foreign objects in tunnels affect driving safety, especially when they are difficult for drivers to spot in time due to changes in lighting. Existing methods, which mainly rely on increasing the brightness of the light, have not been able to effectively solve this problem.
Foreign object detection is performed using a ranging terminal (including a rangefinder and a reflector). The presence of a foreign object is determined by a clock circuit, which triggers an alarm light to alert the driver, thus avoiding false alarms when there is no foreign object.
It enables timely detection and alarm of foreign objects in tunnels, reduces false alarms, ensures driving safety, and especially does not affect the driver's vision when the light changes.
Smart Images
Figure CN223797019U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road foreign object detection technology, specifically to an intelligent detection and early warning system for foreign objects on tunnel pavement. Background Technology
[0002] When driving, the presence of foreign objects on the road can seriously affect the safety of drivers, especially when driving at high speeds or in low light conditions. Furthermore, before entering a tunnel, drivers are often unable to see foreign objects due to changes in light intensity, which can lead to driving accidents. Existing solutions mostly rely on increasing the brightness of tunnels to improve driving visibility and address the above problems. Utility Model Content
[0003] To address the issue of foreign objects in tunnels affecting driving safety, this invention provides an intelligent detection and early warning system for foreign objects on tunnel surfaces.
[0004] The technical solution of this utility model is as follows:
[0005] A tunnel surface foreign object intelligent detection and early warning system includes a processing terminal, which is electrically connected to a clock circuit, and the input end of the processing terminal is connected to several ranging terminals, and the output end is connected to several alarm terminals.
[0006] The ranging terminal includes a rangefinder and a reflector arranged opposite each other along the roadside inside the tunnel, and multiple ranging terminals are arranged at intervals along the length of the roadside.
[0007] The alarm terminal includes an alarm light installed at the top of the tunnel, and the alarm light is located on the side of the adjacent ranging terminal closer to the tunnel entrance.
[0008] Unlike existing methods for enhancing tunnel illumination, this device uses a ranging terminal for detection. When the reading of the ranging terminal deviates from the threshold and is timed by a clock circuit for a certain period of time, it can be determined that there is a foreign object, and an alarm can be triggered to remind the driver.
[0009] As a preferred option, a single ranging terminal includes a rangefinder and multiple reflectors. This can increase the detection range.
[0010] The specific setup of the aforementioned ranging terminal is as follows: multiple reflectors of the same ranging terminal and the ranging instrument are placed on two opposite curbs. This setup ensures that the driving section between the two curbs is detected.
[0011] One way to increase the detection range is to space multiple reflectors of the same ranging terminal along the length of the road. This increases the detection range in this direction.
[0012] To avoid overlapping detection ranges, multiple reflectors of the same ranging terminal are placed between two adjacent ranging devices along the roadside.
[0013] As a preferred embodiment, the ranging terminals are staggered along the roadside on both sides of the tunnel.
[0014] To avoid structural damage after a collision, the rangefinder is recessed relative to the roadside towards the side away from the center of the tunnel.
[0015] The aforementioned rangefinder is configured such that the rangefinder and multiple reflectors are located on the same horizontal plane and are all positioned above the bottom of the tunnel.
[0016] For better warning purposes, the warning light is arched and located at the top of the tunnel.
[0017] For the driver's convenience, the warning light is yellow.
[0018] The beneficial effects of this utility model are as follows: This utility model is an intelligent detection and early warning system for foreign objects on tunnel surfaces. Unlike existing methods that enhance brightness, this system collects data through a ranging terminal. When a foreign object is detected, it can provide feedback and illuminate an alarm light. Furthermore, through the setting of a clock circuit, it can avoid alarms caused by non-foreign object issues to a certain extent. Under normal circumstances, as vehicles move normally in the tunnel, the reading of the ranging instrument will continuously change. However, as vehicles leave and the next vehicle enters, the reading will not change for a long time. An alarm will only be triggered when a foreign object obstructs the view or when vehicles stop moving in the tunnel. If a vehicle stops moving, whether due to traffic jams or other reasons, the alarm light will also illuminate to warn the drivers behind to brake, thus avoiding any adverse effects. Attached Figure Description
[0019] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the control system structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the application of this utility model to the rear structure of a tunnel;
[0023] Figure 3 This is a side sectional view of the present invention.
[0024] Figure 4 This is a top sectional view of the structure of this utility model;
[0025] Figure 5 This is a top-view cross-sectional view of the present invention (foreign object detected);
[0026] The components represented by the various reference numerals in the diagram are:
[0027] 1. Tunnel; 2. Curb; 3. Rangefinder; 4. Reflector; 5. Warning light; 6. Foreign object. Detailed Implementation
[0028] like Figure 1 The illustrated intelligent detection and early warning system for foreign objects on a tunnel surface includes a processing terminal. The processing terminal is electrically connected to a clock circuit, which is used to calculate time to ensure delayed alarms. The input end of the processing terminal is connected to several ranging terminals, and the output end is connected to several alarm terminals. The ranging terminals and alarm terminals are configured in a one-to-one correspondence to ensure that after the ranging terminals detect foreign objects, the alarm terminals can issue an alert at the corresponding location.
[0029] Furthermore, in the above structure, the ranging terminal includes a rangefinder 3 and a reflector 4 arranged opposite to each other on the roadside 2 inside the tunnel 1, and multiple ranging terminals are arranged at intervals along the length of the roadside 2. By setting multiple ranging terminals, the detection range can be expanded to ensure that the tunnel can be covered. However, in special cases, such as when the tunnel light intensity is sufficient and the field of vision is clear, it is also possible to set only at the entrance position to achieve the necessary effect.
[0030] It should be noted that a single ranging terminal includes a rangefinder 3 and multiple reflectors 4. This can increase the detection range; that is, the rangefinder 3 needs multiple output terminals, each corresponding to one of the reflectors 4. Then, as... Figure 5 As shown, the detection is performed within the area covered by the rangefinder 3, i.e., the reflector 4.
[0031] Furthermore, the specific configuration of the aforementioned ranging terminal is such that multiple reflectors 4 of the same ranging terminal and the rangefinder 3 are positioned on two opposing curbs 2. This configuration ensures that the detection focuses on the driving section between the two curbs 2. In other words, it can detect foreign objects in the driving section, such as… Figure 5 As shown, when the light is obstructed, alarm light 5 will be activated to warn the user.
[0032] Meanwhile, to increase the detection range, multiple reflectors 4 of the same ranging terminal are spaced apart along the length of the road siding 2. This increases the detection range in this direction. The shape or height of the foreign object does not affect the judgment; however, anything exceeding a certain height will obstruct the driving vehicle. Therefore, detection only needs to be performed on a horizontal plane. Thus, the ranging instrument 3 and multiple reflectors 4 are positioned on the same horizontal plane, all higher than the bottom surface of tunnel 1. The height above the tunnel 1 surface needs to be set according to requirements; for situations that do not affect driving, it can be appropriately ignored. Therefore, the height needs to be set to the height of the foreign object that would affect driving.
[0033] Furthermore, to avoid overlapping detection ranges, multiple reflectors 4 of the same ranging terminal are positioned between two adjacent ranging devices 3 along the curb 2. In other words, it can achieve... Figure 5 As shown, this avoids the phenomenon of overlapping settings.
[0034] like Figure 2-4 As shown, the ranging terminals are staggered on the curbs 2 on both sides of tunnel 1. This staggered arrangement achieves the following: Figure 5 The state shown demonstrates the ability to detect a wide range of objects, ensuring timely detection once they appear. Furthermore, the higher the density of the aforementioned ranging terminals, the smaller the size of the foreign objects that can be detected.
[0035] Finally, it should be noted that in the above structure, to avoid structural damage after a collision, the rangefinder 3 is recessed relative to the curb 2 towards the side furthest from the center of the tunnel 1. This prevents damage from vehicle collisions.
[0036] After that, as Figure 2 , 3 As shown, the alarm terminal includes an alarm light 5 installed at the top of tunnel 1, and the alarm light 5 is located on the side of the adjacent ranging terminal closer to the entrance of tunnel 1 to ensure that vehicles can detect the alarm information in a timely manner. Furthermore, for better warning, the alarm light 5 is arched and located at the top of tunnel 1 for easy observation.
[0037] Finally, for the driver's convenience, the warning light 5 is yellow, which aligns with the common sense of a yellow light warning. This can be achieved through the aforementioned structure. Unlike existing methods that enhance the brightness of tunnel 1, this device uses a ranging terminal for detection. When the reading of the ranging terminal deviates from the threshold and is timed by a clock circuit for a certain period, the presence of a foreign object 6 can be determined. The ranging device and warning terminal can be commercially available products capable of performing corresponding light detection and visual alarm functions. The alarm will then alert the driver. Furthermore, the alarm will only sound when a foreign object obstructs the view or when the vehicle stops in the tunnel. If a vehicle stops, whether due to traffic congestion or other reasons, the warning light will still illuminate to warn following drivers to brake, thus avoiding any adverse effect.
Claims
1. A smart detection and early warning system for foreign objects on tunnel surfaces, characterized in that, It includes a processing terminal, which is electrically connected to a clock circuit, and the input terminal of the processing terminal is connected to several ranging terminals, and the output terminal is connected to several alarm terminals. The ranging terminal includes a rangefinder (3) and a reflector (4) arranged opposite to each other on the roadside (2) inside the tunnel (1), and multiple ranging terminals are arranged at intervals along the length of the roadside (2); The alarm terminal includes an alarm light (5) installed at the top of the tunnel (1), and the alarm light (5) is located on the side of the adjacent ranging terminal near the entrance of the tunnel (1).
2. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, A single ranging terminal includes a rangefinder (3) and multiple reflectors (4).
3. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 2, characterized in that, Multiple reflectors (4) of the same ranging terminal and the rangefinder (3) are set on two opposite curbs (2).
4. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 3, characterized in that, Multiple reflectors (4) of the same ranging terminal are spaced apart along the length of the road (2).
5. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 4, characterized in that, Multiple reflectors (4) of the same ranging terminal are set between two adjacent rangefinders (3) on the roadside (2).
6. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, The ranging terminals are staggered on the curbs (2) on both sides of the tunnel (1).
7. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, The rangefinder (3) is recessed relative to the curb (2) on the side away from the center of the tunnel (1).
8. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, The rangefinder (3) and multiple reflectors (4) are located on the same horizontal plane and are all set above the bottom of the tunnel (1).
9. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, The warning light (5) is arched and is located at the top of the tunnel (1).
10. The intelligent detection and early warning system for foreign objects on tunnel pavement according to claim 1, characterized in that, The warning light (5) is yellow.