Intelligent prompting device for safety information of special road section

Abstract

The invention relates to the technical field of traffic management, and particularly discloses a special road section safety information intelligent prompting device which comprises a tunnel front section, a tunnel and a tunnel rear section, a portal identification plate is arranged on the tunnel front section, and a first counter and a second counter are installed between the front side of the portal identification plate and a tunnel entrance. The controller is used for displaying the number of vehicles obtained by subtracting the numerical values of the two counters on the door frame identification plate, a plurality of tunnel floor lamps are installed in the tunnel at intervals in the length direction of the tunnel, geomagnetic sensors are installed beside the tunnel floor lamps, the controller is electrically connected with a vehicle detection module, and a plurality of tunnel top lamps are installed at the top in the tunnel. The controller is used for controlling on and off of the tunnel top lamps according to the vehicle accident position information, the tunnel guide lamps are installed on the inner wall of the tunnel, and the vehicle speed sensors are installed beside the tunnel guide lamps. The scheme can solve the problem that the existing prompt information in the tunnel cannot prompt the opportunity of driving out of the tunnel and the information of the vehicle driving in front in the tunnel in time according to the vehicle speed and the vehicle driving distance.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic management, and particularly relates to an intelligent safety information prompting device for special sections. Background Art

[0002] As an important part of modern traffic infrastructure, tunnels play an important role in improving traffic efficiency and shortening the passing distance. However, as a closed traffic environment, the special structure and usage scenarios of tunnels also bring many potential safety hazards. Especially in special situations (such as power outages, fires, traffic accidents, etc.), it may cause serious harm to drivers and vehicles. In the case of a fire or thick smoke, the visibility is further reduced, and drivers may not be able to detect the danger in time, increasing the risk of collisions or secondary accidents. The closed environment and monotonous visual stimuli in the tunnel are likely to trigger psychological stress and fatigue in drivers, reducing their reaction ability and judgment. In special situations such as power outages or accidents, the nervousness of drivers may be further intensified, resulting in operational errors or panic.

[0003] In addition, when there are ramps or complex road conditions after the tunnel exit, drivers need to complete lane changes or speed adjustments within a short time. When the lighting is insufficient, the line of sight is blocked, or the prompting information is missing, drivers may miss the exit or enter the wrong lane by mistake, increasing the risk of traffic accidents. In some long tunnels, the first half of the section is uphill and the second half is downhill. Due to this longitudinal slope structure, the average speed of vehicles driving out of the tunnel is about 5 - 10 km / h higher than the average speed of driving in. Since there are no relevant reference objects in the tunnel for people, there is a visual error, and it is not easy to feel the existence of the slope. Coupled with the potential energy of the uphill and downhill, the braking distances of various vehicles will be greatly reduced, which is also the reason for keeping away from vehicles to avoid danger.

[0004] To ensure driving safety in the above-mentioned special sections, the existing method of bottom markings proposed in the Chinese invention with the publication number CN104790307A is adopted, where multiple place names in different diversion directions are printed on the ground at the exit end of the tunnel to ensure that drivers can plan their driving lanes in advance. However, this method is difficult to specifically prompt drivers about the timing of decelerating when exiting the tunnel, the speed when exiting the tunnel, and the information of the vehicles in front in the tunnel according to the driving speed and driving distance of the vehicles in the tunnel. Therefore, an intelligent safety information prompting device for special sections is proposed. Summary of the Invention

[0005] The present invention aims to provide an intelligent safety information prompting device for special sections to solve the problem that the existing prompting information in the tunnel cannot prompt drivers in time about the timing of exiting the tunnel and the information of the vehicles driving in front inside the tunnel according to the vehicle speed and vehicle driving distance.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: A special section safety information intelligent prompt device, characterized in that: it includes a front section of the tunnel, the tunnel, and a rear section of the tunnel. A gantry identification board is provided at the front section of the tunnel. A first counter and a second counter are respectively installed between the front side of the gantry identification board and the tunnel entrance. The first counter and the second counter are respectively electrically connected to a controller. The controller is used to display the number of vehicles obtained by subtracting the values of the two counters on the gantry identification board. A number of tunnel floor lights are installed at intervals along the length of the tunnel inside the tunnel. The prompt floor lights are electrically connected to the controller. The controller is also used to display different colors and frequencies according to the number of vehicles between the two counters to prompt the driver about the vehicle situation inside the tunnel; A geomagnetic sensor is installed beside the tunnel floor lights. The geomagnetic sensor is electrically connected to the controller. The controller is electrically connected to a vehicle detection module. The vehicle detection module is used to judge the vehicle accident position information in the tunnel according to the detection data of the geomagnetic sensor. A number of tunnel ceiling lights are installed along the length of the tunnel on the top inside the tunnel. The controller is used to control the lighting and extinguishing of a number of tunnel ceiling lights according to the vehicle accident position information. The controller is also connected to a timing module. The timing module is used to sequentially turn on and off a number of tunnel ceiling lights between the driving vehicle and the accident position according to the vehicle driving information and the vehicle accident position information;

[0007] A number of tunnel guiding lights are installed at intervals on the inner wall of the tunnel. A vehicle speed sensor is installed beside each tunnel guiding light. The vehicle speed sensor is electrically connected to the controller. The controller is used to control the lighting and extinguishing mode of the tunnel guiding lights in front of the vehicle according to the vehicle speed.

[0008] Further, when the vehicle speed sensor detects that the vehicle driving speed exceeds the tunnel specified speed, the tunnel guiding lights are red. When the vehicle speed sensor detects that the vehicle driving speed is at the tunnel specified speed, the tunnel guiding lights are rainbow-colored and gradually light up along the driving direction of the vehicle..

[0009] Further, a reflective guiding belt is installed between adjacent tunnel guiding lights. The reflective guiding belt is used to outline the tunnel. The pattern on the reflective guiding belt is arrow-shaped. The arrow points towards the driving direction of the vehicle. The color of the arrow is different from the background color.

[0010] Further, the controller is used to set the tunnel floor lights at the vehicle accident position detected by the geomagnetic sensor to red and keep them lit, and sequentially light up and turn off a number of tunnel floor lights in front of the tunnel floor lights at this position as the vehicle moves. The lighting and extinguishing of the tunnel floor lights form a streamlined trajectory and go out at the vehicle accident position.

[0011] Further, when the number of vehicles ≤ 3, the prompt floor lights flash green, and the flashing frequency is 1 s / time. When the number of vehicles > 3, the prompt floor lights flash yellow, and the flashing frequency is 0.5 s / time.

[0012] Further, when a sudden power outage occurs in the tunnel, the guiding floor lights flash red, and the flashing frequency of the red lights is once every 0.5 s.

[0013] Further, it also includes a safety warning sign, which includes a bracket, a sign board, a control unit, a driving unit, and an alarm unit; a rotatable sign board is vertically installed on the upper part of the bracket, the control unit is installed in a control cabinet, and the control cabinet is installed on the bracket. The control unit includes a controller and a power detection module. The power detection module is electrically connected to the controller and is used to send a trigger signal to the controller when a power outage or power restoration occurs in the tunnel.

[0014] The driving unit is installed on the bracket. The driving unit includes a driving motor and a power supply. The driving motor is used to drive the sign board to flip, and the power supply is independent of the tunnel power supply and is used to supply power to the safety intelligent warning sign alone; the alarm unit is installed beside the sign board and is used to warn passing vehicles.

[0015] Both the driving unit and the alarm unit are electrically connected to the controller, and the controller is also used to control the driving motor and the alarm unit according to the trigger signal.

[0016] Further, the safety warning sign includes a first safety warning sign and a second safety warning sign. The first safety warning sign is installed at the front section of the tunnel, and the second safety warning sign is installed at the rear section of the tunnel. The first safety warning sign is used to display different warning slogans according to the power on / off situation in the tunnel; the second safety warning sign is used to display different warning slogans according to the traffic conditions of the connecting ramp behind the tunnel.

[0017] Further, guiding floor lights are installed on both sides of the road in the rear section of the tunnel. When the ramp is impassable, the guiding floor lights are constantly on in red. When the ramp is passable, the guiding floor lights flash in normal light.

[0018] The basic principle of this solution is as follows: The gantry sign installed at the front section of the tunnel can timely inform the driver that there is a connecting ramp closely following behind the tunnel, and two counters are used to count the number of vehicles in the front section of the tunnel. Since the driver will not be able to timely perceive the vehicles ahead due to the black hole effect when driving into the tunnel, the driver generally has concerns about the uncertainty of the unknown environment and potential risks. Using the number of vehicles to provide a certain psychological expectation for the driver. At the same time, the geomagnetic sensor detects the location of vehicle accidents and cooperates with the on / off of the tunnel ceiling lights and tunnel floor lights to guide the driver. When the driver reaches the end section of the tunnel, the tunnel guiding lights cooperate with the vehicle speed sensor. When the driving speed of the driver exceeds the specified speed, the tunnel guiding lights turn red. When the driving speed of the driver is within the specified speed, the tunnel guiding lights light up in color in sequence, playing a role of counting down for the driver and guiding the driver to drive out of the tunnel.

[0019] The beneficial effects of this solution are as follows: In the existing tunnel, there are multiple ramps immediately following the exit, and there are no effective prompting and guiding devices in the front section of the tunnel to remind drivers, which causes drivers to suddenly change lanes when entering or exiting the tunnel, posing a safety hazard. This solution uses the gantry sign in the front section of the tunnel to guide drivers about the ramp conditions behind the tunnel, and sets a counter in the front section of the tunnel to display the number of vehicles at the front end inside the tunnel to the drivers, reducing drivers' concerns about the unknown environment inside the tunnel. At the same time, using tunnel floor lights, tunnel ceiling lights, and safety sign lights, when a fire, power outage, or accident occurs in the tunnel, drivers can obtain prompt information and avoid the accident point. When drivers exit the tunnel, the tunnel guiding lights are used to prompt the driving speed of the vehicle, enabling drivers to reasonably control the vehicle speed before entering the ramp and ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view schematic diagram of the embodiment of the present invention;

[0021] Figure 2 is the top view schematic diagram of the embodiment of the present invention;

[0022] Figure 3 is the front view schematic diagram of the tunnel in the embodiment of the present invention;

[0023] Figure 4 is the schematic diagram of the first safety prompt sign in the embodiment of the present invention;

[0024] Figure 5 is the schematic diagram of the second safety prompt sign in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following is a more detailed description through specific embodiments:

[0026] The reference numerals in the accompanying drawings of the specification include: bracket 01, sign board 02, guardrail 03, control cabinet 04, warning light group 05, broadcast horn 06, interlayer 07, hook 08, pull rod 09, drive motor 010, rotating shaft 011, column base 012;

[0027] Tunnel 1, front section of the tunnel 101, rear section of the tunnel 102, gantry sign 2, first safety prompt sign 31, second safety prompt sign 32, tunnel guiding light 4, tunnel floor light 5, tunnel ceiling light 6, traffic sign 7, reflective guiding belt 8, prompt floor light 9, first counter 111, second counter 112.

[0028] The embodiment is basically as shown in Figure 1 to Figure 5 shown:

[0029] An intelligent safety information prompting device for special road sections, including a tunnel 1, a front section 101 of the tunnel, and a rear section 102 of the tunnel. The front section 101 of the tunnel is the section for entering the tunnel 1, and the rear section 102 of the tunnel is the section after driving out of the tunnel 1. A ramp leading to an interchange is connected to the rear of this section, and the ramp is located on the right side of the road. A gantry sign board 2 is installed on the front section 101 of the tunnel. The gantry sign board 2 can display the driving section directions of each lane, and the gantry sign board 2 is an electronic gantry sign board 2. The distance between the gantry sign board 2 and the entrance of the tunnel 1 is 100 m, and a first safety sign 31 is set in front of the gantry sign board 2. In this embodiment, the total number of driving roads is two. Among the two driving roads, the left road is a straight road, and the right road is a forked road that can enter the ramp after driving out of the tunnel 1. A first counter 111 is arranged on the section in front of the gantry sign board 2. At a distance of 150 m in front of the first counter 111 along the road, that is, 150 m in the vehicle driving direction, a second counter 112 is set. The second counter 112 is located inside the tunnel 1. The first counter 111 and the second counter are both electrically connected to a controller. The controller is used to obtain the number of vehicles driving on the section between the two counters according to the difference between the first counter and the second counter, and send this number to the gantry sign board 2 for display.

[0030] The first safety sign 31 is as Figure 4 shown. The first safety sign 31 is used to display different prompting slogans according to the power-on and power-off conditions in the tunnel 1. The prompting slogans are respectively "The tunnel 1 is powered off, please turn on the headlights" and "Extra-long tunnel 1, drive carefully". The first safety sign 31 includes a control unit, a bracket 01, a sign board 02, a driving unit, and an alarm unit. The control unit includes a controller and a power detection module. The power detection module is electrically connected to the controller. The power detection module is a voltage sensor. The power detection module is used to send a trigger signal to the controller when the tunnel 1 has a power outage or a power-on. The driving unit includes a driving motor 010 and a power supply. The driving motor 010 is a stepping motor. The power supply is independent of the power consumption of the tunnel 1 and is used to supply power to the safety intelligent sign. The controller is also used to control the forward and reverse rotation degrees of the driving motor 010 according to the trigger signal. The alarm unit includes a warning light group 05 and a broadcast horn 06. The controller is also used to control the opening and closing of the warning light group 05 and the broadcast horn 06 according to the trigger signal.

[0031] A tunnel 1 signal light is installed above the entrance of the tunnel 1. The tunnel 1 signal light is electrically connected to the controller. When the tunnel 1 signal light shows a green hook pattern, it means that this road can pass normally. When the tunnel 1 signal light shows a red cross pattern, it means that this road is closed due to reasons and needs to be bypassed.

[0032] On both sides of the road between the first counter 111 and the entrance of Tunnel 1, reminder ground lights 9 are also installed. The reminder ground lights 9 are installed every 25 m. The reminder ground lights 9 are used to display different colors and frequencies according to the number of vehicles between the two counters, so as to remind the driver of the vehicle situation in Tunnel 1, give the driver a certain psychological expectation, and slow down according to the road conditions before driving into Tunnel 1, so as to avoid the distance between the vehicle not driving into Tunnel 1 and the vehicle in front that has entered Tunnel 1 and has slowed down being too close due to the inability to accurately judge the vehicle situation and distance at the entrance of Tunnel 1 outside the tunnel, resulting in a traffic accident. Specifically, every time a vehicle passes the first counter 111, the vehicle count is incremented by one, and every time a vehicle passes the second counter 112, the vehicle count is decremented by one. When the vehicle count ≤ 3, the reminder ground lights 9 flash green, and the flashing frequency is 1 time per second. When the vehicle count > 3, the reminder ground lights 9 flash yellow, and the flashing frequency is 0.5 time per second. Specifically, a set of the first counter 111, the second counter, and the gantry reminder sign can be respectively arranged on the side of each of the left and right lanes to provide road condition information for the drivers in that lane according to different lane conditions. When a sudden power outage occurs in Tunnel 1, the reminder ground lights 9 flash red, and the flashing frequency of the red light is 0.5 time per second.

[0033] Inside Tunnel 1, tunnel ground lights 5 are respectively arranged on the ground steps on both sides of Tunnel 1. The tunnel ground lights 5 are arranged every 5 m. A geomagnetic sensor is installed beside the tunnel ground lights 5. The geomagnetic sensor is electrically connected to a controller, and the controller is also connected to a vehicle detection module. The vehicle detection module is used to judge the position of the vehicle stopped in Tunnel 1 according to the detection data of the geomagnetic sensor and send the position information to the controller.

[0034] On the top of the inner part of Tunnel 1, a tunnel ceiling lamp 6 is installed every 1 m above each lane. The tunnel ceiling lamp 6 is electrically connected to a controller. The controller is further configured to control the lighting and extinguishing of several tunnel ceiling lamps 6 at the accident location and the front end of the accident location (the defense line towards the accident location) according to the position information of the vehicle accident. The controller is also connected to a timing module. The timing module is configured to turn on and off each of the several tunnel ceiling lamps 6 between the traveling vehicle and the accident location one by one according to the position of the traveling vehicle detected by the geomagnetic sensor. Specifically, for example, if the accident location is at the 500 m of Tunnel 1, the geomagnetic sensor at this 500 m detects an abnormal vehicle at this position and sends the position information to the controller. The controller turns on the tunnel ceiling lamp 6 at the position information and turns off the tunnel ceiling lamps 6 after 500 m. The tunnel ceiling lamps 6 from the 300 m to the 500 m are grouped together. Whenever a vehicle passes by, the tunnel ceiling lamp 6 lights up and then turns off following the vehicle. What the human eye observes is that the tunnel ceiling lamp 6 forms a streamlined trajectory following the vehicle below it and disappears when reaching the vehicle accident location. The controller can set the tunnel ceiling lamp 6 at the accident location to red and keep it lit continuously. For the vehicles continuously entering Tunnel 1 from behind, they can avoid being blocked by the vehicle in front and timely observe the information at the accident location, thus preventing the vehicle from being unable to avoid obstacles in time or decelerate in advance. For other vehicles, the flowing linear light track brought by the vehicle in front can attract the attention of the driver behind, improving the attention of the driver behind to the traffic conditions in Tunnel 1.

[0035] On the side wall inside Tunnel 1, several tunnel guiding lamps 4 are arranged at intervals. A reflective guiding strip 8 is also installed between adjacent tunnel guiding lamps 4. The reflective guiding strip 8 is used to outline the profile of Tunnel 1. The pattern on the reflective guiding strip 8 is arrow-shaped, with the arrow pointing in the traveling direction of the vehicle, and the color of the arrow is different from the background color.

[0036] In this embodiment, the guiding lights are installed within 200 m close to the exit of Tunnel 1. The guiding lights use a 20-m light strip as a unit, and several 20-m light strips are laid within 200 m. In this embodiment, each light strip forms a full-length rainbow-colored light strip, with the end far from the exit of Tunnel 1 being purple and the end close to the exit of Tunnel 1 being red. A vehicle speed sensor is installed on the front side of each guiding light. The vehicle speed sensor is electrically connected to a controller. The on / off time of the guiding lights is determined according to the specified driving speed of Tunnel 1. If the specified driving speed of Tunnel 1 on this road is 60 - 80 km / h, when the vehicle speed sensor detects that the vehicle speed exceeds this specified speed, the color of the first guiding light in front of the vehicle is set to red. Only when the vehicle speed sensor detects that the vehicle speed is within the specified speed range, the color of the rainbow light strip is restored. And whenever the vehicle speed reaches the specified speed, the color of the next light strip is the rainbow gradient color of the previous light strip, so as to significantly prompt the driver of the speed and be able to give good feedback to the driver's deceleration action through an aesthetic visual effect, increasing the interest and concentration ability of the driver when driving in Tunnel 1. To improve the guiding effect of the guiding lights, the guiding lights slide forward in a streamline shape according to the specified vehicle speed and for a determined duration, which can provide a reference for the driver's normal driving speed.

[0037] A second safety sign 32 is installed beside the ramp road close to the exit of Tunnel 1 in the rear section 102 of the tunnel. The second safety sign 32 has the same structure as the first safety sign 31. The second safety sign 32 is specifically as shown in the appendix Figure 5 The difference of the second safety sign 32 lies in the different warning slogans. The vehicle driving direction and the name information of the ramp road are marked on the second safety sign 32. According to needs, "Ramp construction, no entry" can be added on the other side of the second safety sign 32. At the same time, when the ramp is impassable, the information that the ramp is impassable is displayed on the gantry sign.

[0038] Prompt floor lights 9 are installed on both sides of the road in the rear section 102 of the tunnel. When the ramp is impassable, the prompt floor lights 9 are constantly on in red. When the ramp is passable, the prompt floor lights 9 flash with normal lights.

[0039] The specific implementation process is as follows:

[0040] When the driver is driving in the first section 101 of the tunnel, the number of vehicles between the front end of Tunnel 1 and a part of the road at the entrance of Tunnel 1 can be obtained through the gantry sign. According to the number of vehicles prompted by the gantry sign, the driver can obtain the situation at the entrance of Tunnel 1 before entering Tunnel 1, reducing the driver's concerns about the uncertainty of the unknown environment and potential risks. Through information prompting, the driver can judge according to his driving experience and distance, ensuring that the driver is in a normal state of vigilance and concentration. When an emergency occurs in Tunnel 1, the tunnel ceiling lamp 6 and the geomagnetic sensor are combined to obtain the accident location information. The accident location information is lit in red to improve the driver's vigilance. Moreover, through the streamline guiding lights on the top of Tunnel 1, the driving conditions of multiple vehicles ahead in Tunnel 1 can be obtained in a timely manner, ensuring that the driver's line of sight is not blocked by large vehicles ahead and obtaining more external information in front of the vehicle. Tunnel 1 is a closed and noisy space. When driving in the extra-long Tunnel 1, the driver's speed generally increases due to the lack of reference. For the situation where there is a ramp at the exit of Tunnel 1, it is difficult for the vehicle to safely decelerate quickly in a short time. Rainbow gradient guiding lights are installed in the last 200 meters of Tunnel 1. According to the vehicle speed when the vehicle passes each guiding light, the guiding lights show different lighting conditions. When the vehicle speed is too fast, one guiding light in front of the driving vehicle always shows red, enabling the driver to obtain vehicle speed feedback information in a timely manner. And because the driver can see the overall situation of the guiding lights ahead, when the guiding light is suddenly red instead of rainbow-colored, the driver will feel disappointed or dissatisfied psychologically. The sense of broken expectation makes the driver's thinking active, increasing the chance for the driver to be guided.

[0041] In addition, the first safety sign 31 is used to prompt the driver when there is an emergency in Tunnel 1. When the power supply in Tunnel 1 is normal, the signboard 022 faces the vehicles driving into Tunnel 1 on the highway with the side printed with the words "Drive carefully in the extra-long Tunnel 1".

[0042] When the power supply in Tunnel 1 is cut off, the voltage sensor, which is a power detection module, detects the power cut and sends a trigger signal to the controller. After receiving the signal, the controller starts the drive motor 010, the warning light group 05, and the broadcast speaker 06. The drive motor 010 drives the signboard 02 to rotate 180°, turning out the side of the signboard 02 printed with the words "The power supply in Tunnel 1 is cut off. Please turn on your headlights" and facing the vehicles entering Tunnel 1. The red and blue flashing lights of the warning light group 05 flash, and at the same time, the broadcast speaker 06 emits a voice broadcast of "The power supply in Tunnel 1 is cut off. Please turn on your headlights".

[0043] When the power supply is restored in Tunnel 1, the voltage sensor detects the power-on and sends a trigger signal to the controller. After receiving the signal, the controller turns off the warning light group 05 and the broadcast speaker 06, and starts the drive motor 010. The drive motor 010 drives the signboard 02 to rotate back to the side of "Drive carefully in the extra-long Tunnel 1".

[0044] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A special road section safety information intelligent prompt device, characterized by: It includes a tunnel front section, a tunnel, and a tunnel rear section. A gantry identification plate is provided at the tunnel front section. A first counter and a second counter are respectively installed between the front side of the gantry identification plate and the tunnel entrance. The first counter and the second counter are respectively electrically connected to a controller. The controller is used to display the number of vehicles obtained by subtracting the values ​​of the two counters on the gantry identification plate. A plurality of tunnel floor lights are installed at intervals along the length of the tunnel inside the tunnel. The prompt floor lights are electrically connected to the controller. The controller is also used to display different colors and frequencies according to the number of vehicles between the two counters to prompt the driver of the vehicles entering the tunnel. A geomagnetic sensor is installed on the side of the tunnel floor light. The geomagnetic sensor is electrically connected to the controller. The controller is electrically connected to a vehicle detection module. The vehicle detection module is used to determine the vehicle accident position information in the tunnel according to the detection data of the geomagnetic sensor. A plurality of tunnel ceiling lights are installed on the top of the tunnel along the length of the tunnel. The controller is used to control the lighting of a plurality of tunnel ceiling lights according to the vehicle accident position information. The controller is also connected to a timing module. The timing module is used to turn on and off a plurality of tunnel ceiling lights between the driving vehicle and the accident position one by one according to the vehicle driving information and the vehicle accident position information. A number of tunnel guide lights are installed at intervals on the inner wall of the tunnel. A vehicle speed sensor is installed next to each tunnel guide light. The vehicle speed sensor is electrically connected to a controller. The controller is used to control the on and off mode of the tunnel guide light in front of the vehicle according to the vehicle speed.

2. The intelligent prompting device for special road section safety information according to claim 1 is characterized in that: When the vehicle speed sensor detects that the vehicle speed exceeds the specified speed in the tunnel, the tunnel guide light turns red; when the vehicle speed sensor detects that the vehicle speed is at the specified speed in the tunnel, the tunnel guide light turns rainbow and gradually lights up along the vehicle's traveling direction.

3. The intelligent prompting device for special road section safety information according to claim 2 is characterized in that: Reflective guide tapes are installed between adjacent tunnel guide lights. The reflective guide tapes are used to indicate the outline of the tunnel. The pattern on the reflective guide tapes is arrow-shaped, and the arrows point in the direction of travel of the vehicle. The color of the arrows is different from the background color.

4. The intelligent prompting device for special road section safety information according to claim 3 is characterized in that: The controller is used to set the tunnel ground light at the vehicle accident location detected by the geomagnetic sensor to red and keep it on continuously, and to light and turn off multiple tunnel ground lights in front of the tunnel ground light one by one as the vehicle travels. The lighting and turning off of the tunnel ground lights form a streamlined trajectory and are extinguished at the vehicle accident location.

5. The intelligent prompting device for special road section safety information according to claim 4 is characterized in that: When the number of vehicles is ≤3, the warning light flashes green, and the flashing frequency is 1s / time; when the number of vehicles is >3, the warning light flashes yellow, and the flashing frequency is 0.5s / time.

6. The intelligent prompting device for special road section safety information according to claim 5, characterized in that: When there is a sudden power outage in the tunnel, the warning ground light will flash red at a frequency of 0.5s / time.

7. The intelligent prompting device for special road section safety information according to claim 6 is characterized in that: It also includes a safety sign, which includes a bracket, an identification plate, a control unit, a drive unit, and an alarm unit; a flip-up identification plate is vertically installed on the upper part of the bracket, the control unit is installed in a control cabinet, and the control cabinet is installed on the bracket. The control unit includes a controller and a power detection module, the power detection module is electrically connected to the controller, and the power detection module is used to send a trigger signal to the controller when a power outage or a call occurs in the tunnel; The driving unit is mounted on the bracket, and includes a driving motor and a power supply. The driving motor is used to drive the sign board to flip, and the power supply is independent of the tunnel power supply and is used to supply power to the safety and intelligent sign board separately. The alarm unit is mounted beside the sign board, and is used to alert passing vehicles. The driving unit and the alarm unit are both electrically connected to the controller, and the controller is also used to control the driving motor and the alarm unit according to the trigger signal.

8. The intelligent prompting device for special road section safety information according to claim 7 is characterized in that: The safety reminder sign includes a first safety reminder sign and a second safety reminder sign. The first safety reminder sign is installed in the front section of the tunnel, and the second safety reminder sign is installed in the rear section of the tunnel. The first safety reminder sign is used to display different reminder slogans according to the power on and off conditions in the tunnel; the second safety reminder sign is used to display different reminder slogans according to the traffic conditions of the connecting ramp at the rear of the tunnel.

9. The intelligent prompting device for special road section safety information according to claim 8, characterized in that: Warning ground lights are installed on both sides of the road at the rear section of the tunnel. When the ramp is impassable, the warning ground lights will be solid red. When the ramp is passable, the warning ground lights will flash at normal light.

Images