Intelligent road stud-based lane-level safety early warning system and method

Abstract

The present invention relates to the technical field of smart roads. Disclosed are an intelligent road stud-based lane-level safety early warning system and a method. The system comprises: a roadside sensing device, a central platform, intelligent road studs and an intelligent road stud controller. The roadside sensing device is used for detecting a road traffic event within a preset range and uploading traffic detection information to the central platform. The central platform is used for generating alarm information on the basis of the traffic detection information and issuing the alarm information to the intelligent road stud controller. The intelligent road stud controller is used for generating, on the basis of the alarm information, adjustment instructions for the flashing frequency and light color and sending same to the intelligent road studs in the corresponding area. The intelligent road studs are used for changing the combination of the flashing frequency and different light colors on the basis of the received adjustment instructions, so as to implement safety early warning in various traffic event scenarios. The present invention uses the intelligent road studs to achieve issuing of lane-level safety early warning information in various scenarios, thereby improving the capability of driving risk early warning for highway traffic events, and reducing casualties and economic property losses.

Description

A lane-level safety warning system and method based on smart road studs Technical Field

[0001] This invention relates to the field of smart highway technology, and more specifically to a lane-level safety warning system and method based on smart road studs. Background Technology

[0002] When traffic incidents occur on highways, such as accidents, stops, wrong-way driving, pedestrians, congestion, road closures, or severe weather, they can cause varying degrees of impact on other vehicles, including drastic deceleration, forced lane changes at bottlenecks, and traffic disruptions. If passing vehicles fail to receive timely information about these incidents and cannot react appropriately, secondary accidents are highly likely. Therefore, an effective traffic safety early warning system is needed to provide timely safety alerts to passing vehicles after a traffic incident, thereby improving traffic safety and efficiency.

[0003] Current highway safety warning technologies share certain common problems, primarily in the insufficient reach of dynamic safety warning information to drivers. Information dissemination to drivers still relies on traditional methods such as information boards and broadcasts. These devices are often deployed at large intervals along highways, providing only localized warnings and failing to achieve lane-level alerts or traffic guidance. Furthermore, a more direct and effective safety warning system with continuous information dissemination capabilities is currently lacking, resulting in users not being deeply aware of highway traffic safety warnings and the warnings not being very effective.

[0004] Therefore, how to improve the ability to warn of driving risks in highway traffic incidents and reduce casualties and economic losses is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] Summary of the Invention

[0006] In view of this, the present invention provides a lane-level safety warning system and method based on smart road studs, which solves the problems existing in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A lane-level safety warning system based on smart road studs includes: roadside sensing devices, a central platform, smart road studs, and a smart road stud controller;

[0009] Roadside sensing devices are used to detect road traffic events within a preset range and upload traffic detection information to the central platform.

[0010] The central platform generates alarm information based on traffic detection information and sends the alarm information to the intelligent road stud controller;

[0011] The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area.

[0012] Smart road studs change their flashing frequency and color combinations based on received adjustment commands to provide safety warnings in different traffic incident scenarios.

[0013] Optionally, the roadside sensing device is a radar-visual integrated machine installed on a roadside pole, used to detect traffic accidents, parking incidents, littering incidents, wrong-way driving incidents, pedestrian incidents, congestion incidents, and temporary construction road occupancy incidents.

[0014] Optional features of the radar-visual integrated unit include: a camera and a millimeter-wave radar;

[0015] The camera is used to capture road images of the area corresponding to the pole.

[0016] Millimeter-wave radar is used to collect information on moving targets within the area corresponding to the pole.

[0017] Optionally, the content obtained by the central platform based on traffic detection information includes: the location and type of traffic accidents, the location and lane occupied by parking incidents, the location and lane occupied by spilled materials in littering incidents, the location and lane occupied by driving against traffic incidents, the location of pedestrians in pedestrian incidents, the location and lane occupied by congestion incidents, and the location and lane occupied by temporary construction road occupancy incidents.

[0018] Optionally, the central platform can be connected to the roadside sensing devices and smart road stud controllers via fiber optic networks.

[0019] Optionally, smart road studs are installed on both sides of the driving lane, and are continuously laid out at preset intervals on the corresponding straight lines of traffic markings on both sides of the driving lane.

[0020] Optionally, the smart road stud has a built-in three-axis geomagnetic sensor, an IoT communication module, and an LED light-emitting module; the three-axis geomagnetic sensor is connected to the IoT communication module, and both the IoT communication module and the LED light-emitting module are connected to the smart road stud controller.

[0021] Optional safety warnings for different traffic incident scenarios are categorized as follows:

[0022] When a traffic accident / parking incident / debris spillage incident / temporary construction incident is detected, the smart road stud indicator light 200 meters behind the lane occupied by the accident vehicle / parking vehicle / debris spillage / construction vehicle will remain constantly lit.

[0023] When a wrong-way driving event is detected, the smart road stud indicator light 300 meters behind the lane where the wrong-way vehicle is located will flash at a frequency of 2 times per second, and the flashing light strip will move with the vehicle.

[0024] When a pedestrian event is detected, the smart road stud indicator light 200 meters behind the lane line closest to the pedestrian will flash at a frequency of 2 times per second;

[0025] When a congestion event is detected, the smart road stud indicator light 200 meters behind the lane at the congestion point will flash at a frequency of 1 flash every 2 seconds, and the flashing light strip will move with the position of the congested convoy.

[0026] A method for implementing a lane-level safety warning system based on smart road studs according to any one of the above claims includes the following steps:

[0027] Utilize roadside sensing devices to detect road traffic events within a preset range and upload the traffic detection information to the central platform;

[0028] The central platform generates alarm information based on traffic detection data and sends the alarm information to the intelligent road stud controller;

[0029] The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area.

[0030] The smart road stud changes its flashing frequency and color combination according to the received adjustment instructions to provide safety warnings in different traffic incident scenarios.

[0031] As can be seen from the above technical solution, compared with the prior art, this invention provides a lane-level safety warning system and method based on smart road studs. By utilizing the frequency of smart road stud light color changes and visual effects, it enables the dissemination of lane-level safety warning information in different scenarios such as no-entry, warning, and guidance, demonstrating strong practicality on highways. After the method is applied and promoted in actual roads, it can significantly improve the ability to warn of driving risks in highway traffic incidents. Through the safety information warnings from smart road studs, vehicles are reminded to drive safely, thereby effectively avoiding rear-end collisions, secondary accidents, and especially chain-reaction collisions in highway traffic incidents, reducing casualties and economic property losses, improving the overall traffic capacity of roads, and generating significant economic and social benefits. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 is a structural diagram of the lane-level safety warning system based on smart road studs provided by the present invention;

[0034] Figures 2(a) and 2(b) are safety warning diagrams for single-lane rear-end collision accidents and cross-lane side collision accidents, respectively.

[0035] Figure 3 is a schematic diagram of parking event early warning;

[0036] Figure 4 is a schematic diagram of an early warning system for spillage incidents;

[0037] Figure 5 is a schematic diagram of an early warning system for reverse traffic events;

[0038] Figure 6 is a schematic diagram of pedestrian event early warning;

[0039] Figures 7(a) and 7(b) are schematic diagrams of early warning for two types of congestion events with different congestion locations and lane types occupied;

[0040] Figure 8 is a schematic diagram of severe weather (rain and fog) warning.

[0041] Figure 9 is a schematic diagram of collision risk warning in the merging zone;

[0042] Figure 10 is a schematic diagram of early warning for temporary construction road occupancy incidents. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] This invention discloses a lane-level safety warning system based on smart road studs, as shown in Figure 1, including: roadside sensing devices, a central platform, smart road studs, and a smart road stud controller;

[0045] Roadside sensing devices are used to detect road traffic events within a preset range and upload traffic detection information to the central platform.

[0046] The central platform generates alarm information based on traffic detection information and sends the alarm information to the intelligent road stud controller;

[0047] The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area.

[0048] Smart road studs change their flashing frequency and color combinations based on received adjustment commands to provide safety warnings in different traffic incident scenarios.

[0049] Based on the structure shown in Figure 1, the safety warning system constructed in this embodiment can remind passing vehicles of safety warning information ahead, realize traffic warning functions under different traffic event scenarios on highways, and support lane-level safety warning information release for highway scenarios.

[0050] Furthermore, the roadside sensing equipment is a radar-visual integrated machine installed on roadside poles, used to detect traffic accidents, parking incidents, littering incidents, wrong-way driving incidents, pedestrian incidents, congestion incidents, and temporary construction road occupancy incidents.

[0051] Furthermore, the radar-visual integrated machine includes: a camera and a millimeter-wave radar; the camera is used to acquire road images of the area corresponding to the pole; the millimeter-wave radar is used to acquire information about moving targets within the area corresponding to the pole.

[0052] Furthermore, the information obtained by the central platform based on traffic detection information includes: the location and type of traffic accidents, the location and lane occupied by parking incidents, the location and lane occupied by spilled materials, the location and lane occupied by driving against traffic, the location of pedestrians in pedestrian incidents, the location and type of lane occupied by congestion incidents, and the location and lane occupied by temporary construction road occupancy incidents.

[0053] Furthermore, the central platform is connected to the roadside sensing devices and intelligent road stud controllers via fiber optic networks.

[0054] Furthermore, smart road studs are installed on both sides of the driving lane, continuously and at preset intervals along the corresponding straight lines of the traffic markings on both sides of the driving lane. In this embodiment, the preset interval is 15 meters.

[0055] Furthermore, the smart road stud incorporates a three-axis geomagnetic sensor, an IoT communication module, and an LED lighting module. The three-axis geomagnetic sensor is connected to the IoT communication module, and both the IoT communication module and the LED lighting module are connected to the smart road stud controller. In this embodiment, the smart road stud indicator light is switched on in a constant / flashing mode, with three colors: white, yellow, and red. By combining the flashing frequency with different light colors, different safety warning information release scenarios can be achieved.

[0056] 1. When it is daytime and the illumination at the curve is high, the system will shut down and the smart road stud indicator light will turn off.

[0057] 2. The system activates when the illumination is low at a curve during the day or at night. Based on different scenarios of perception information dissemination, safety warnings can be categorized into static traffic incident warnings, dynamic traffic incident warnings, severe weather (rain / fog) indications, collision risk warnings, planned event warnings, etc.

[0058] (1) Early warning of stationary traffic incidents

[0059] ① Traffic accident early warning

[0060] After a traffic accident occurs, the location and type of the accident (single-lane rear-end collision, cross-lane side collision) are identified through the accident event information provided by the central platform or roadside sensing equipment. After analyzing the accident, the instructions are transmitted to the intelligent road stud controller. Based on the detailed circumstances of the accident, the road stud control strategies for different lanes are issued to the intelligent road studs: the indicator lights of the intelligent road studs 200 meters behind the corresponding lanes occupied by the accident vehicle are kept constantly red, as shown in Figure 2(a) and Figure 2(b).

[0061] ② Parking incident early warning

[0062] After a parking incident occurs, the location and lane occupied by the incident are identified through parking incident information provided by the central platform or roadside sensing devices. After analysis, the instructions are transmitted to the smart road stud controller. Based on the details of the incident, the road stud control strategies for different lanes are issued to the smart road studs: the smart road stud indicator light 200 meters behind the lane occupied by the parking incident is kept constantly red, as shown in Figure 3.

[0063] ③Early warning of spillage incidents

[0064] After an incident involving spilled material occurs, the location of the spilled material and the lane it occupies are identified through the spilled material incident information provided by the central platform or roadside sensing equipment. After analysis, the instructions are transmitted to the smart road stud controller. Based on the details of the incident, the road stud control strategies for different lanes are issued to the smart road studs: the smart road stud indicator light 200 meters behind the lane occupied by the spilled material is kept constantly red, as shown in Figure 4.

[0065] (2) Early warning of dynamic traffic incidents

[0066] ① Warning of driving in the wrong direction (reversing)

[0067] After a wrong-way (reversing) incident occurs, the location and lane of the incident are identified through the information provided by the central platform or roadside sensing devices. After analysis, the command is transmitted to the intelligent road stud controller. Based on the details of the wrong-way incident, the road stud control strategy for different lanes is issued to the intelligent road stud: the intelligent road stud indicator light 300 meters behind the lane where the wrong-way vehicle is located flashes red at a frequency of 2 times / second, and the flashing light strip moves with the vehicle, as shown in Figure 5.

[0068] ② Pedestrian incident early warning

[0069] After a pedestrian incident occurs, the location of the pedestrian is determined through pedestrian event information provided by the central platform or roadside sensing devices. After analysis, the instruction is transmitted to the smart road stud controller. Based on the detailed information of the pedestrian, the road stud control strategy for different lanes is issued to the smart road stud: the smart road stud indicator light 200 meters behind the nearest lane line of the pedestrian flashes red at a frequency of 2 times / second, as shown in Figure 6.

[0070] ③ Traffic congestion event early warning

[0071] After a congestion event occurs, the congestion event information provided by the central platform or roadside sensing equipment is used to identify the congestion point and the type of lane occupied. After analysis, the instructions are transmitted to the intelligent road stud controller. Based on the details of the accident, the road stud control strategies for different lanes are issued to the intelligent road studs: the intelligent road stud indicator lights 200 meters behind the lane at the congestion point flash red at a frequency of 1 time / 2 seconds, and the flashing light strip moves with the position of the congested convoy, as shown in Figure 7(a) and Figure 7(b).

[0072] (3) Delineation in severe weather (rain and fog)

[0073] After severe weather such as rain or fog occurs, this function is activated when the visibility detector detects that the visibility is below a certain threshold. At this time, all lanes turn on their yellow lights for guidance, as shown in Figure 8.

[0074] (4) Collision risk warning in the merging zone

[0075] When vehicles merge into the merging area on highway ramps, and when the ramp vehicles enter the main road acceleration lane and there are also vehicles on the main road behind them, all of them will flash red at a frequency of 1 time per second, as shown in Figure 9.

[0076] (5) Early warning of temporary construction road occupation incidents

[0077] When maintenance and construction occupy roads, the temporary construction road occupation event information provided by the central platform or roadside sensing equipment can be used to identify the location of the road occupation and the lane occupied. After analysis, the instructions are transmitted to the intelligent road stud controller. Based on the details of the accident, the road stud control strategy for different lanes is issued to the intelligent road stud: the indicator light of the intelligent road stud 200 meters behind the occupied lane will be constantly lit in red, as shown in Figure 10.

[0078] This embodiment also discloses a method for implementing the lane-level safety warning system based on the smart road stud described above, including the following steps:

[0079] Utilize roadside sensing devices to detect road traffic events within a preset range and upload the traffic detection information to the central platform;

[0080] The central platform generates alarm information based on traffic detection data and sends the alarm information to the intelligent road stud controller;

[0081] The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area.

[0082] The smart road stud changes its flashing frequency and color combination according to the received adjustment instructions to provide safety warnings in different traffic incident scenarios.

[0083] In this embodiment, 10 smart road studs are deployed at 15-meter intervals on each lane of a two-way four-lane road in one direction of traffic, totaling 30 smart road studs across 3 lanes, covering a range of 150 meters. A radar-visual integrated device is installed on the roadside poles along this section to support road traffic event detection. Simultaneously, a smart road stud controller is installed on the roadside of this section. All devices are connected to the road management center platform via a wireless network. When the radar-visual integrated device detects specific event information, it uploads it to the central platform, which then sends an alarm message to the smart road stud controller. Based on the event type and location information sent by the central platform, the smart road stud controller issues corresponding smart road stud control commands. The road studs within this section respond with a specified flashing frequency and color according to the commands to achieve a traffic safety warning function.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The methods disclosed in the embodiments are described simply because they correspond to the systems disclosed in the embodiments; relevant details can be found in the method section.

[0085] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lane-level safety warning system based on smart road studs, characterized in that, include: Roadside sensing equipment, central platform, smart road studs and smart road stud controllers; Roadside sensing devices are used to detect road traffic events within a preset range and upload traffic detection information to the central platform. The central platform generates alarm information based on traffic detection information and sends the alarm information to the intelligent road stud controller; The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area. Smart road studs change their flashing frequency and color combinations based on received adjustment commands to provide safety warnings in different traffic incident scenarios.

2. The lane-level safety warning system based on intelligent road studs according to claim 1, characterized in that, The roadside sensing equipment is a radar-visual integrated machine installed on roadside poles, used to detect traffic accidents, parking incidents, littering incidents, wrong-way driving incidents, pedestrian incidents, congestion incidents, and temporary construction road occupancy incidents.

3. A lane-level safety warning system based on intelligent road studs according to claim 1, characterized in that, The integrated radar-visual system includes: a camera and a millimeter-wave radar; The camera is used to capture road images of the area corresponding to the pole. Millimeter-wave radar is used to collect information on moving targets within the area corresponding to the pole.

4. A lane-level safety warning system based on smart road studs according to claim 1, characterized in that, The central platform obtains the following information based on traffic detection data: the location and type of traffic accidents; the location and lane occupied by parking incidents; the location and lane occupied by spilled materials in incidents; the location and lane occupied by driving against traffic incidents; the location of pedestrians in pedestrian incidents; the location and lane type occupied by congestion incidents; and the location and lane occupied by temporary construction road occupancy incidents.

5. A lane-level safety warning system based on intelligent road studs according to claim 1, characterized in that, The central platform is connected to the roadside sensing devices and intelligent road stud controllers via fiber optic networks.

6. A lane-level safety warning system based on intelligent road studs according to claim 1, characterized in that, Intelligent road studs are installed on both sides of the driving lane, and are continuously laid out at preset intervals on the corresponding straight lines of traffic markings on both sides of the driving lane.

7. A lane-level safety warning system based on intelligent road studs according to claim 1, characterized in that, The smart road stud has a built-in three-axis geomagnetic sensor, an IoT communication module, and an LED light-emitting module. The three-axis geomagnetic sensor is connected to the IoT communication module, and both the IoT communication module and the LED light-emitting module are connected to the smart road stud controller.

8. A lane-level safety warning system based on intelligent road studs according to claim 2, characterized in that, Safety warnings for different traffic incident scenarios are categorized as follows: When a traffic accident / parking incident / debris spillage incident / temporary construction incident is detected, the smart road stud indicator light 200 meters behind the lane occupied by the accident vehicle / parking vehicle / debris spillage / construction vehicle will remain constantly lit. When a wrong-way driving event is detected, the smart road stud indicator light 300 meters behind the lane where the wrong-way vehicle is located will flash at a frequency of 2 times per second, and the flashing light strip will move with the vehicle. When a pedestrian event is detected, the smart road stud indicator light 200 meters behind the lane line closest to the pedestrian will flash at a frequency of 2 times per second; When a congestion event is detected, the smart road stud indicator light 200 meters behind the lane at the congestion point will flash at a frequency of 1 flash every 2 seconds, and the flashing light strip will move with the position of the congested convoy.

9. A method for implementing a lane-level safety warning system based on intelligent road studs according to any one of claims 1-8, characterized in that, Includes the following steps: Utilize roadside sensing devices to detect road traffic events within a preset range and upload the traffic detection information to the central platform; The central platform generates alarm information based on traffic detection data and sends the alarm information to the intelligent road stud controller; The intelligent road stud controller generates and sends instructions to adjust the flashing frequency and light color based on alarm information to the intelligent road studs in the corresponding area. The smart road stud changes its flashing frequency and color combination according to the received adjustment instructions to provide safety warnings in different traffic incident scenarios.

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