CN211207495U - A warning system for the safety of curved road sections in tunnels - Google Patents

Abstract

The utility model provides a warning system for the safety of curved road sections in a tunnel, which comprises a vehicle position determination module, a projection lamp warning device, a voice alarm module, an LED lamp warning array and a single-chip microcomputer. The single-chip microcomputer is respectively connected with the vehicle position judgment module, the projection lamp warning device, the voice alarm module and the LED lamp warning array in turn. When the vehicle is driving on the curved road section in the tunnel, the vehicle position determination module judges whether the vehicle deviates from the lane according to the force of the pressure sensors on both sides of the lane buried in the ground. Lane projection, the voice alarm module is installed on both sides of the lane, and the LED light warning array is installed on both sides of the maintenance road. The cycle length of the LED lights on the inside of the curved road section in the tunnel is greater than the cycle length of the LED lights on the outside. The utility model can warn the driver when the vehicle deviates from the lane, induce the driver to keep driving in the normal lane, and improve the driving safety level in the tunnel.

Description

A warning system for the safety of curved road sections in tunnels

Technical field:

The utility model relates to the technical field of traffic safety, in particular to a warning system for the safety of curved road sections in a tunnel.

Background technique:

In recent years, tunnels have become the main spatial distribution point of traffic accidents. Due to its special structure, once an accident occurs, the tunnel lasts for a long time and affects a large area, which often causes heavy casualties and heavy economic losses. Statistics show that traffic accidents caused by motor vehicle driver negligence in tunnels account for the vast majority (more than 90% every year), and fatigue driving accounts for the largest proportion of motor vehicle driver negligence. Drivers are often in a state of drowsiness or inattentiveness, which can easily cause vehicles to deviate from the lane and cause traffic accidents. Other statistics show that 17.3% of the 6.32 million traffic accidents officially counted in the United States were caused by vehicles deviating from the lane, and the resulting fatalities accounted for 40.8% of the total number of fatalities, occurring in Canada, France, Germany and New Zealand. 24% of the 855,000 traffic accidents are identified as being caused by a vehicle veering out of the lane, and a European survey shows that 97% of the 50,000 heavy-duty truck accidents are caused by the driver's inattention. Caused by the driveway.

Studies have shown that if vehicles are warned in advance before a traffic accident occurs, at least 60% of the accidents caused by lane departure can be reduced. However, due to the special driving environment and road alignment conditions of the curved road section in the tunnel, the driver is prone to fatigue driving due to driving in the tunnel for a long time. In addition, the existence of centrifugal force during the turning process of the vehicle makes the vehicle easy to deviate to the outside of the lane. Accidents are prone to frequent road sections. Therefore, the lane keeping at the bend of the tunnel is studied. When the vehicle deviates from the lane, the driver is warned to improve the driver's driving attention, so that the vehicle can reduce the driving speed and induce the driver to keep the normal lane. The driving safety of vehicles on the inner curve section is of great significance.

Utility model content:

In order to solve the above technical problems, the present invention proposes a safety warning system for curved road sections in a tunnel.

The technical solution adopted by the utility model to solve the technical problem is: a safety warning system for curved road sections in a tunnel, which is characterized in that it includes: a vehicle position determination module, a projection lamp warning device, a voice warning module, and an LED lamp warning array and a single-chip microcomputer; the single-chip microcomputer is respectively electrically connected with the vehicle position determination module, the projection lamp warning device, the voice alarm module, and the LED lamp warning array in sequence.

Preferably, the vehicle position judging module is composed of a plurality of pressure sensors, and the plurality of pressure sensors are buried on both sides of the underground lane. The separation lines are separated by a certain distance, and the pressure sensors are continuously longitudinally arranged along the traveling direction of the vehicle.

Preferably, the projection lamp warning device is fixed on the top of the tunnel body, and projects to the lane of the curved road section in the tunnel, and the projection direction of the projection lamp is along the traveling direction of the vehicle;

Preferably, the voice alarm module is installed on both sides of the lane, and when the vehicle deviates from the lane, the voice alarm module sends out a warning voice.

Preferably, the LED light warning arrays are installed on both sides of the access road, wherein the cycle length of the LED lights on the inner side of the curved road section in the tunnel is greater than the cycle length of the LED lights on the outer side thereof;

The principle is the influence of the edge rate on the driver's speed perception. The driver is easy to deviate to the outside of the lane due to the existence of centrifugal force during the driving process of the curved road section in the tunnel. The inconsistent cycle of the inner and outer LEDs can make the driver's speed perception significantly. Raised to eliminate the existence of centrifugal force during driving on the curved road section in the tunnel, thereby inducing the driver to approach the inner side of the lane and keep driving in the normal lane. The choice of red and yellow LED lights can enhance the stimulation effect and improve the driver's attention.

Beneficial effects of the utility model:

For vehicles on curved roads in the tunnel, the warning system can warn the driver, reduce the driver's fatigue, improve the lane keeping effect, and effectively reduce the number and intensity of accidents on the curved road in the tunnel.

The LED light warning array can use the edge rate theory to make the driver unintentionally slow down, eliminate the existence of centrifugal force in the process of driving on the curved road in the tunnel, and the disadvantage of the vehicle deviating to the outside of the lane, induce the driver to drive to the inside of the lane, and keep the vehicle in the normal lane drive.

The red and yellow LED lights can enhance the stimulating effect, improve the driver's attention, and relieve the driver's monotony and nervousness in the tunnel.

Environmentally friendly and economical, the selected equipment is LED lights, the economical cost of raw materials is low, and no substances that have an impact on the environment will be produced.

Description of drawings:

Fig. 1: The utility model is a block diagram;

Fig. 2: sectional schematic diagram of the utility model for determining the lane position;

Fig. 3: Projection lamp warning device diagram of the present utility model;

Fig. 4: LED lamp warning array diagram of the present utility model;

Detailed ways:

In order to facilitate the understanding and implementation of the present invention by those of ordinary skill in the art, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It is not intended to limit the present invention.

As shown in FIG. 1 of the flow chart of the present utility model, the present utility model provides a vehicle position judging module, a projection lamp warning device, a voice alarm module, an LED light warning array, and a single-chip microcomputer; The light warning device, the voice warning module, and the LED light warning array are electrically connected in sequence.

The vehicle position judging module is composed of a plurality of pressure sensors, and the plurality of pressure sensors are buried on both sides of the underground lane. The vehicle position judging module judges whether the vehicle deviates from the lane according to the force condition, and the pressure sensors are separated from the lane dividing line. At a certain distance, the pressure sensors are continuously arranged longitudinally along the direction of vehicle travel.

The projection lamp warning device is fixed on the top of the tunnel body, and projects to the lane of the curved road section in the tunnel, and the projection direction of the projection lamp is along the traveling direction of the vehicle;

The voice alarm module is installed on both sides of the lane, and when the vehicle deviates from the lane, the voice alarm module sends out a warning voice.

The LED light warning array is installed on both sides of the maintenance road, wherein the cycle length of the LED lights on the inner side of the curved road section in the tunnel is greater than the cycle length of the outer LED lights;

Figure 2 is a schematic diagram of the lane position determination section. The pressure sensors on both sides of the lane are buried underground, and the distance between the pressure sensors on both sides of the lane is 0.3m from the lane dividing line. The front tire of the vehicle is pressed on the pressure sensor, the pressure sensor is stressed, and the signal is transmitted to the single-chip microcomputer, and the vehicle position judgment module judges whether the vehicle deviates from the lane according to whether the pressure sensor is stressed.

Figure 3 is a diagram of the projection lamp warning device. The projection lamp warning device is fixed on the top of the tunnel body and projects to the lane of the curved road section in the tunnel. The projection direction of the projection lamp is along the traveling direction of the vehicle. The projection text is: "Please keep the lane", the distance between the projection lamps is 100m.

The voice alarm module is installed on both sides of the lane. When the vehicle deviates from the lane, the voice alarm module will issue a warning voice "please pay attention, you have left the lane".

Figure 4 shows the LED light warning array. The LED light warning array is installed on both sides of the maintenance road. The inner LED light cycle of the curved road section in the tunnel is 4m, the outer LED light cycle is 2m, and the light-dark ratio is 1:1 , LED lights are long strips. The LED lights installed on both sides of the access road are 15cm wide, and the LED lights are red and yellow, and the two colors are laid alternately. The cycle of the LED lights on the inside of the curved road section in the tunnel is greater than the cycle of the LED light on the outside of the curved road section. The principle is that the edge rate affects the driver's speed perception. The driver is easy to move to the lane due to the existence of centrifugal force during the driving process of the curved road section in the tunnel. If the outer side deviates, the driver's speed perception can be significantly increased through the inconsistent cycle of the inner and outer LEDs, eliminating the existence of centrifugal force during driving on the curved road section in the tunnel, thereby inducing the driver to approach the inner side of the lane and keep driving in the normal lane. The choice of red and yellow LED lights can enhance the stimulation effect and improve the driver's attention.

The type of the single-chip microcomputer is STC89C51; the type of the pressure sensor of the vehicle position judgment module is YB95; the type of the projection lamp warning device is DET-5U; the type of the voice alarm module is TRIG-MP3-30W; the type of the LED The light warning array is selected as WDM-BS1-6-RY;

Below in conjunction with Fig. 1 to Fig. 4, the specific embodiment of the present invention is introduced as follows:

The vehicle position determination module lays a pressure sensor under the road surface of the lane, and judges whether the vehicle deviates from the lane according to the force of the pressure sensors on both sides. The received pressure information is transmitted to the single-chip microcomputer, which analyzes and processes the pressure information, triggers the projection light warning device fixed on the top of the tunnel body, and the projection light warning device projects to the lane of the curved road section in the tunnel where the vehicle is located. In order to follow the traveling direction of the vehicle, the projected text is "Please keep the lane", which visually reminds the driver to keep driving in the normal lane; the voice alarm module installed on both sides of the lane is triggered, and the voice alarm module sends out a warning voice "Please keep the lane". Attention, you have deviated from the lane", audibly reminding the driver to keep driving in the normal lane; at the same time, the LED light warning array in the curved road section in the tunnel can use the edge rate theory to psychologically make the driver unconsciously slow down and induce the driver to go to the lane Drive inside, keeping the vehicle in the normal lane.

It should be understood that the above description of the preferred embodiments is relatively detailed, and therefore should not be considered as a limitation on the scope of protection of the present invention. Under the inspiration of the present invention, those of ordinary skill in the art can Under the protection scope of the claims, substitutions or modifications can also be made, which all fall within the protection scope of the present invention, and the claimed protection scope of the present invention shall be subject to the appended claims.

Claims (8)

1. A warning system for safety of a road section at a bend in a tunnel is characterized by comprising a vehicle position judging module, a projection lamp warning device, a voice warning module, an L ED lamp warning array and a single chip microcomputer, wherein the single chip microcomputer is respectively and sequentially electrically connected with the vehicle position judging module, the projection lamp warning device, the voice warning module and the L ED lamp warning array.

2. The warning system for the safety of a curve section in a tunnel according to claim 1, wherein: the vehicle position judging module is composed of a plurality of pressure sensors, the pressure sensors are buried at two sides of an underground lane, the vehicle position judging module judges whether the vehicle deviates from the lane according to the stress condition, the pressure sensors are respectively away from a lane separation line by a certain distance, and the pressure sensors are continuously and longitudinally arranged along the vehicle advancing direction.

3. The warning system for the safety of a curve section in a tunnel according to claim 1, wherein: the projection lamp warning device is fixed at the top of the tunnel body and projects to a lane of a curve road section in the tunnel, and the projection direction of the projection lamp is the advancing direction along a vehicle.

4. The warning system for the safety of a curve section in a tunnel according to claim 1, wherein: the voice alarm module is arranged on two sides of the lane, and when the vehicle deviates from the lane, the voice alarm module sends out warning voice.

5. The system for warning the safety of the road section with the curved road inside the tunnel according to claim 1, wherein the L ED lamp warning arrays are arranged on two sides of the access road.

6. The system for warning of safety of a curve section inside a tunnel according to claim 5, wherein the L ED lamp period on the inner side of the curve section inside the tunnel is longer than the L ED lamp period on the outer side of the curve section.

7. The system for warning the safety of the road section with the curved road in the tunnel as claimed in claim 5, wherein the L ED lamp warning array is red and yellow in light emitting color, and the two colors are alternately laid in sequence.

8. The system for warning the safety of a curve section in a tunnel according to claim 6, wherein the period of the inside L ED lamp is 4m, the period of the outside L ED lamp is 2m, and the light-dark ratio is 1: 1.

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