A highway traffic risk early warning system based on the change of rainfall intensity on rainy days

Abstract

The present invention relates to the technical field of traffic control, and particularly relates to a highway traffic risk warning system based on the change of rainfall intensity in rainy days, which includes an expansion module, a reminder module and a cloud; the highway includes a road and an indicator light; there is a placement groove on the road; the expansion module includes a water-absorbing expansion rubber strip provided in the placement groove and having an expansion sensor; the reminder module includes a pressure switch and a communication module, the pressure switch is arranged in the placement groove, and there is a gap between the pressure switch and the free end; the expansion data of the expansion sensor is used to calculate the rainfall intensity and compared with the rainfall data of the weather station around the water-absorbing expansion rubber strip every minute to judge the accuracy of the calculation; the stronger the rainfall of the water-absorbing expansion rubber strip of the present invention, the more obvious the warning effect. The expansion data of the expansion sensor is used to calculate the rainfall intensity, and the traffic risk caused by the rain intensity is compared and judged. The indicator light issues a risk warning; the pressure switch cooperates with the indicator light to warn the position of the vehicle in front or the excessive rainwater.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic control, and particularly to a highway traffic risk warning system based on the change of rainfall intensity in rainy days. Background Art

[0002] The road traffic volume is increasing continuously, but the driving safety problems on the road are gradually emerging. Especially in rainy weather, a water film is generated on the road surface. At this time, the friction coefficient of the road surface is greatly reduced, and then the tires are prone to hydroplaning and skidding, and the driving safety is relatively low. The safety factors such as the probability of vehicle skidding due to the water film and the braking distance are closely related to the driving speed, and the rainfall intensity is proportional to the formation speed of the water film. The stronger the rainfall, the more critical it is to slow down. However, in many cases, the driver cannot feel the existence of the water film and is prone to ignore this problem, which may lead to accidents. Therefore, a highway traffic risk warning system based on the change of rainfall intensity in rainy days is needed to forcibly remind the driver to slow down according to the change of rainfall intensity. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a highway traffic risk warning system based on the change of rainfall intensity in rainy days, which can forcibly remind the driver to slow down according to the change of rainfall intensity.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is as follows:

[0005] A highway traffic risk warning system based on the change of rainfall intensity in rainy days is used to warn the vehicles driving on the highway, and the vehicle is provided with a prompting device; the highway traffic risk warning system includes an expansion module, a reminder module and a cloud;

[0006] The highway includes a road and an indicator light on the side of the road; a plurality of placement grooves perpendicular to the length direction of the road are arranged on the road surface of the road;

[0007] The expansion module includes a plurality of water-absorbing and expanding rubber strips, the water-absorbing and expanding rubber strips are arranged in the placement grooves, one end of the water-absorbing and expanding rubber strip far from the roadside is fixed in the placement groove, and the other end is a free end; in the dry state, the upper surface of the water-absorbing and expanding rubber strip is parallel to the road surface, and the water-absorbing and expanding rubber strip bulges out of the ground after absorbing water. The stronger the rainfall, the more water the water-absorbing and expanding rubber strip absorbs, and the more it bulges out, and the greater the vibration when the vehicle passes by; the placement groove is inclined downward towards the free end;

[0008] The number of the reminder modules corresponds to the number of the water-absorbing and swelling rubber strips. The reminder module includes a pressure switch and a communication module. The pressure switch is arranged in the placement groove near the free end, and there is a gap between the pressure switch and the free end. When it rains, after the rain fills the gap and the vehicle passes through the placement groove, the water-absorbing and swelling rubber strip is squeezed and moves towards the gap, pushing the rainwater in the gap. The rainwater squeezes or the free end squeezes the pressure switch to control the indicator light to turn on and give a warning to the following vehicle.

[0009] An expansion sensor is arranged in the water-absorbing and swelling rubber strip. The expansion sensor is electrically connected to the communication module. The cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity, and compares the rainfall data with the meteorological station around the water-absorbing and swelling rubber strip every minute to verify the accuracy of the calculation. If the accuracy is insufficient, it is corrected to give a warning to the reminder device of the vehicle that is about to pass through this road and / or control the indicator light to turn on.

[0010] Preferably, the vehicle further includes a locator.

[0011] The cloud obtains the positioning information of the locator and judges the driving direction of the vehicle according to the positioning information. The cloud locates the line where the vehicle is located according to the positioning information, obtains the weather change of the line where it is located, and sends it to the vehicle. If the weather change includes a change in rainfall intensity, a warning is sent to the vehicle in advance.

[0012] Preferably, the vehicle further includes an input device, and the line is the path between the starting point and the destination obtained after inputting the starting point and the destination through the input device.

[0013] Preferably, the road includes a top layer of fine-grained asphalt concrete layer, and the placement groove is opened on the fine-grained asphalt concrete layer.

[0014] Preferably, an expansion sensor is arranged in the water-absorbing and swelling rubber strip. The expansion sensor is electrically connected to the communication module. The cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity.

[0015] Preferably, the cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity and gives a warning to the reminder device of the vehicle that is about to pass through this road.

[0016] Preferably, the cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity, compares the rainfall data with the meteorological station around the water-absorbing and swelling rubber strip every minute to verify the accuracy of the calculation. If the accuracy is insufficient, it is corrected to give a warning to the reminder device of the vehicle that is about to pass through this road and / or control the indicator light to turn on.

[0017] Preferably, the reminder devices of different vehicles communicate with each other through the cloud.

[0018] The vehicle is equipped with a vibration sensor. When the vehicle runs over the water-swellable rubber strip that swells upon absorbing water, the vibration sensor of the vehicle is activated. After activation, it sends vibration information to the cloud through a prompting device, and the cloud sends the vibration information to the prompting device of the vehicle that is about to pass through this road.

[0019] Preferably, a sunscreen coating is provided on the upper surface of the water-swellable rubber strip.

[0020] Preferably, the indicator light is arranged facing the oncoming direction of the road, and the height of the indicator light is greater than or equal to 3m.

[0021] The beneficial effects of the present invention are as follows: When in a dry state, the upper surface of the water-swellable rubber strip is parallel to the road surface through the water-swellable rubber strip and the placement groove, which does not affect the driving of the vehicle in the dry state and can only be activated on rainy days. Once it rains, the water-swellable rubber strip absorbs water and swells, and the more it absorbs water, the greater it swells, playing the same role as a speed bump. Of course, the swelling also has a limit. The stronger the rainfall, the more obvious the deceleration effect, that is, it reminds the driver to decelerate through the physical feeling, thereby improving the early warning effect. And the speed bump can also increase the contact area, and the raised part can also break the continuous water film, enabling the wheels to regain grip, thereby ensuring the driving stability of the vehicle, killing two birds with one stone. The placement groove is inclined downward towards the free end, which can achieve rapid drainage and avoid subsequent misjudgment caused by water accumulation after the rain stops. One end of the water-swellable rubber strip is fixed, and the other end is the free end. There is a gap between the pressure switch and the free end, and the gap forms a buffer space. In the case of light rain, the gap cannot be filled with rainwater, that is, there is no need for indicator light reminder in light rain, and it also avoids accidental touch or accidental touch caused by the rubber strip swelling due to other non-rainfall factors. The stronger the rainfall intensity, the easier it is to be filled. After the rainwater fills it, the vehicle can only squeeze the water-swellable rubber strip to expand laterally to achieve the transmission of wheel energy and activate the pressure switch, or the water-swellable rubber strip expands and directly pushes open the pressure switch after swelling. Then the indicator light can warn the following vehicle of the position of the vehicle in front or warn that the rain is too heavy, avoiding the influence of low visibility due to heavy rain on the judgment of the following vehicle on the vehicle in front, thereby realizing early warning, which is also the second-level early warning. Through the expansion sensor, the ratio between the water absorption amount and the expansion size of the water-swellable rubber strip 2 can be calibrated in advance, and the rainfall amount can be inversely deduced from the water absorption amount. And it can compare and verify the rainfall data with the meteorological station once every minute and then send out early warning and / or control the indicator light to turn on to the prompting device of the vehicle passing through this road, realizing the three-level early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a highway traffic risk early warning system based on the change of rainfall intensity on rainy days in a specific embodiment of the present invention;

[0023] Figure 2Partial sectional view in the dry state of a highway traffic risk warning system based on the change of rainfall intensity in rainy days according to a specific embodiment of the present invention;

[0024] Figure 3 is Figure 2 Schematic diagram of the state of the water-absorbing and swelling rubber strip after absorbing water after rainfall;

[0025] Figure 4 Schematic diagram of the dry state of the placement groove of a highway traffic risk warning system based on the change of rainfall intensity in rainy days according to a specific embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the first water-absorbing state of the placement groove of a highway traffic risk warning system based on the change of rainfall intensity in rainy days according to a specific embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the second water-absorbing state of the placement groove of a highway traffic risk warning system based on the change of rainfall intensity in rainy days according to a specific embodiment of the present invention;

[0028] Label description: 1, highway; 11, road; 12, indicator light; 13, placement groove; 14, fine-grained asphalt concrete layer; 2, water-absorbing and swelling rubber strip; 21, free end; 3, pressure switch; 4, radio; 5, interval. Specific embodiment

[0029] To illustrate the technical content, achieved purpose and effect of the present invention in detail, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0030] Please refer to Figures 1 to 6 , a highway 1 traffic risk warning system based on the change of rainfall intensity in rainy days, used to warn vehicles driving on the highway 1, and the vehicle has a reminder device; the highway 1 traffic risk warning system includes an expansion module, a reminder module and the cloud;

[0031] The highway 1 includes a road 11 and an indicator light 12 on the side of the road 11; a plurality of placement grooves 13 perpendicular to the length direction of the road 11 are provided on the road surface of the road 11;

[0032] The expansion module includes a plurality of water-absorbing and swelling rubber strips 2, the water-absorbing and swelling rubber strips 2 are arranged in the placement grooves 13, one end of the water-absorbing and swelling rubber strip 2 far from the roadside is fixed in the placement groove 13, and the other end is a free end 21; the upper surface of the water-absorbing and swelling rubber strip 2 is parallel to the road surface in the dry state, and the water-absorbing and swelling rubber strip 2 bulges out of the ground after absorbing water, and the stronger the rainfall, the more water the water-absorbing and swelling rubber strip 2 absorbs, the more it bulges out, and the greater the vibration when the vehicle passes; the placement groove 13 is inclined downward towards the free end 21;

[0033] The number of the reminder modules corresponds to the number of the water-absorbing and swelling rubber strips 2. The reminder module includes a pressure switch 3, a communication module, and a radio receiver 4. The pressure switch 3 is arranged in the placement groove 13 near the free end 21, and there is a gap 5 between the pressure switch 3 and the free end 21. When it rains, after the gap 5 is filled with rainwater and the vehicle passes through the placement groove 13, the water-absorbing and swelling rubber strip 2 is squeezed to move towards the gap 5, pushing the rainwater in the gap 5. The rainwater squeezes or the free end 21 squeezes the pressure switch 3 to control the indicator light 12 to light up and give a warning to the following vehicle. The radio receiver 4 is communicatively connected to the cloud through the communication module.

[0034] An expansion sensor is arranged in the water-absorbing and swelling rubber strip. The expansion sensor is electrically connected to the communication module. The cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity and compares the rainfall data with the meteorological station around the water-absorbing and swelling rubber strip every minute to verify the accuracy of the calculation. If the accuracy is insufficient, it is corrected to issue a warning to the reminder device of the vehicle about to pass through this road and / or control the indicator light to light up.

[0035] As can be seen from the above description, through the water-swellable rubber strip 2 and the placement groove 13, the upper surface of the water-swellable rubber strip 2 is parallel to the road surface in the dry state, which does not affect the driving of vehicles in the dry state and can only be activated on rainy days. Once it rains, the water-swellable rubber strip 2 absorbs water and swells. The more water it absorbs, the greater it swells, playing the same role as a speed bump. Of course, the swelling also has a limit. The stronger the rainfall, the more obvious the deceleration effect, that is, to remind the driver to decelerate through the sense of touch, thereby improving the early warning effect. And the speed bump can also increase the contact area, and the raised part can also break the continuous water film, enabling the wheels to regain grip, thereby ensuring the driving stability of the vehicle, killing two birds with one stone. The placement groove is inclined downward towards the free end, which can achieve rapid drainage and avoid subsequent misjudgment caused by water accumulation after the rain stops. One end of the water-swellable rubber strip 2 is fixed, and the other end is the free end 21. There is a gap 5 between the pressure switch 3 and the free end 21. The gap 5 forms a buffer space to avoid accidental touch, or accidental touch caused by the rubber strip swelling due to other non-rainfall factors. The stronger the rainfall intensity, the easier it is to be filled. After being filled with rainwater, the vehicle can only squeeze the water-swellable rubber strip 2 to expand horizontally to achieve the transfer of wheel energy and activate the pressure switch 3, or the water-swellable rubber strip 2 expands and directly pushes open the pressure switch 3. Then the indicator light 12 can warn the following vehicle of the position of the vehicle in front or warn that the rain is too heavy, avoiding the influence of low visibility due to heavy rain on the judgment of the following vehicle on the vehicle in front, thereby realizing early warning, which is also the second-level early warning. Through the expansion sensor, the ratio between the water absorption amount and the expansion size of the water-swellable rubber strip 2 can be calibrated in advance, and the rainfall amount can be inversely deduced from the water absorption amount. And it can compare and verify the rainfall data with the weather station once every minute and then send a warning to the prompting device of the vehicle passing through this road and / or control the indicator light to light up, realizing the third-level early warning.

[0036] Further, the vehicle further includes a locator;

[0037] The cloud obtains the positioning information of the locator, judges the driving direction of the vehicle according to the positioning information, locates the line where the vehicle is located according to the positioning information, obtains the weather change of the line where it is located, and sends it to the vehicle. If the weather change includes the change of rainfall intensity, a warning is sent to the vehicle in advance.

[0038] As can be seen from the above description, by obtaining the weather change in advance for forecasting, the fourth-level early warning can be realized.

[0039] Further, the vehicle further includes an inputter, and the line is the path between the starting point and the destination obtained after inputting the starting point and the destination through the inputter.

[0040] Further, the road 11 includes a topmost fine-grained asphalt concrete layer 14, and the placement groove 13 is opened on the fine-grained asphalt concrete layer 14.

[0041] As can be seen from the above description, since the placement groove 13 is formed on the fine-grained asphalt concrete layer 14, the drainage effect of the placement groove 13 is similar to the road surface condition, and it will not cause the drainage to be too fast due to the placement groove 13 being too deep, for example, being formed into the gravel layer, resulting in the inability to transfer the wheel energy to activate the pressure switch 3, and further causing the indicator light 12 to fail.

[0042] Furthermore, the depth of the placement groove 13 is 2 - 3 cm, and the width is 2 - 3 cm.

[0043] As can be seen from the above description, with the depth of the placement groove 13 being 2 - 3 cm and the width being 2 - 3 cm, and the standard topmost fine-grained asphalt concrete layer 14 of the existing road 11 being 4 cm, it can ensure water storage while avoiding penetrating the fine-grained asphalt concrete layer 14; the rectangular placement groove 13 is also relatively easy to excavate.

[0044] Furthermore, the reminder module further includes a radio receiver, and the radio receiver is communicatively connected to the cloud through a communication module;

[0045] The cloud receives the audio from the road and the wheelbase of the vehicle collected by the radio receiver, judges the sound interval generated when the front and rear wheels of the vehicle pass through the extrusion of the water-absorbing and swelling rubber strip respectively when passing through the road, calculates the speed of the vehicle through the wheelbase and the sound interval, and if it exceeds the preset speed, issues a warning to the reminder device through the cloud.

[0046] Furthermore, the reminder devices of different vehicles communicate with each other through the cloud;

[0047] The vehicle is equipped with a vibration sensor. When the vehicle rolls over the water-absorbing and swelling rubber strip 2 that has swelled due to water absorption, the vibration sensor of the vehicle is activated, and after activation, it sends vibration information to the cloud through the reminder device, and the cloud sends the vibration information to the reminder device of the vehicle that is about to pass through this road 11.

[0048] As can be seen from the above description, through communication between different vehicles through the cloud, vehicle networking can be realized for mutual reminder.

[0049] Furthermore, a sunscreen coating is provided on the upper surface of the water-absorbing and swelling rubber strip 2.

[0050] As can be seen from the above description, through the sunscreen coating, the service life can be extended. At the same time, although the swelling in rainy days reduces the sunscreen effect but there is no sun, so it has no impact.

[0051] Furthermore, the indicator light 12 is arranged facing the oncoming vehicle direction of the road 11, and the height of the indicator light 12 is greater than or equal to 3 m.

[0052] As can be seen from the above description, by setting it in the oncoming vehicle direction, interference with the target lane is avoided. At the same time, the higher indicator light 12 has a better indication effect, avoiding the greater impact of rainwater on visibility in the area close to the ground, which may cause misjudgment by the driver.

[0053] Embodiment 1

[0054] A highway 1 traffic risk warning system based on the change of rainfall intensity on rainy days is used to warn vehicles driving on highway 1, and the vehicle has a prompting device; the highway 1 traffic risk warning system includes an expansion module, a reminder module and a cloud;

[0055] The highway 1 includes a road 11 and an indicator light 12 on the side of the road 11; a plurality of placement grooves 13 perpendicular to the length direction of the road 11 are arranged on the road surface of the road 11;

[0056] The expansion module includes a plurality of water-absorbing and expanding rubber strips 2, the water-absorbing and expanding rubber strips 2 are arranged in the placement grooves 13, one end of the water-absorbing and expanding rubber strip 2 away from the roadside is fixed in the placement groove 13, and the other end is a free end 21; in the dry state, the upper surface of the water-absorbing and expanding rubber strip 2 is parallel to the road surface, and the water-absorbing and expanding rubber strip 2 bulges out of the ground after absorbing water. The stronger the rainfall, the more water the water-absorbing and expanding rubber strip 2 absorbs, the more it bulges out, and the greater the vibration when the vehicle passes by; the placement groove 13 is inclined downward towards the free end 21;

[0057] The number of the reminder modules corresponds to the number of the water-absorbing and expanding rubber strips 2. The reminder module includes a pressure switch 3, a communication module and a radio receiver 4. The pressure switch 3 is arranged in the placement groove 13 close to the free end 21, and there is a gap 5 between the pressure switch 3 and the free end 21; when it rains, after the gap 5 is filled with rainwater, when the vehicle passes through the placement groove 13, it squeezes the water-absorbing and expanding rubber strip 2 to move towards the gap 5, and the rainwater squeezes or the free end 21 squeezes the pressure switch 3 to control the indicator light 12 to light up to give a warning to the following vehicle; the radio receiver 4 is communicatively connected to the cloud through the communication module;

[0058] The cloud receives the audio from the road 11 and the wheelbase of the vehicle collected by the radio receiver 4, judges the sound interval 5 generated when the front and rear wheels of the vehicle pass through the water-absorbing and expanding rubber strip 2 respectively when passing through the road 11, calculates the speed of the vehicle through the wheelbase and the sound interval 5, and if it exceeds the preset speed, issues a warning to the prompting device through the cloud.

[0059] The vehicle also includes a locator;

[0060] The cloud obtains the positioning information of the locator, determines the driving direction of the vehicle according to the positioning information, locates the route where the vehicle is located based on the positioning information, obtains the weather change of the route where it is located, and sends it to the vehicle. If the weather change includes a change in rainfall intensity, a warning is sent to the vehicle in advance. The positioning of the vehicle on the route by the positioning information here refers to a relatively long distance of more than 1 kilometer, such as 10 km, but this road will be passed during navigation.

[0061] The vehicle further includes an input device, and the route is the path between the starting point and the destination obtained after inputting the starting point and the destination through the input device.

[0062] The road 11 includes a fine-grained asphalt concrete layer 14 on the uppermost layer, and the placement groove 13 is opened on the fine-grained asphalt concrete layer 14.

[0063] The depth of the placement groove 13 is 2 - 3 cm, and the width is 2 - 3 cm.

[0064] A sunscreen coating is provided on the upper surface of the water-swellable rubber strip 2.

[0065] The indicator light 12 is arranged towards the oncoming vehicle direction of the road 11, and the height of the indicator light 12 is greater than or equal to 3 m.

[0066] Embodiment 2

[0067] A highway 1 traffic risk warning system based on the change of rainfall intensity in rainy days, the same parts as those in Embodiment 1 will not be described in detail, and further includes:

[0068] An expansion sensor is arranged inside the water-swellable rubber strip 2, the expansion sensor is electrically connected to the communication module, and the cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity.

[0069] The cloud obtains the expansion data of the expansion sensor to calculate the rainfall intensity, compares and verifies the rainfall data with the meteorological station around the water-swellable rubber strip every minute to judge the accuracy of the calculation. If the accuracy is insufficient, it is corrected and a warning is sent to the prompt device of the vehicle about to pass through this road and / or the indicator light is controlled to light up.

[0070] The prompt devices of different vehicles communicate with each other through the cloud;

[0071] A vibration sensor is provided on the vehicle. When the vehicle rolls over the water-swellable rubber strip 2 that has swelled due to water absorption, the vibration sensor of the vehicle is activated. After activation, it sends vibration information to the cloud through the prompt device, and the cloud sends the vibration information to the prompt device of the vehicle about to pass through this road 11. The vehicle about to pass through this road 11 here refers to a short distance of less than 1 kilometer, for example.

[0072] The above are only embodiments of the present invention, and do not thus limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. A highway traffic risk warning system based on the change of rainfall intensity on rainy days, which is used to warn the vehicles driving on the highway, and the vehicle is provided with a prompting device; characterized in that, The highway traffic risk warning system includes an expansion module, a reminder module, and a cloud; The highway includes a road and indicator lights on the side of the road; multiple placement grooves perpendicular to the length direction of the road are provided on the road surface of the road; The expansion module includes multiple water-swellable rubber strips, which are arranged in the placement grooves. One end of the water-swellable rubber strip away from the roadside is fixed in the placement groove, and the other end is a free end; in the dry state, the upper surface of the water-swellable rubber strip is parallel to the road surface. After the water-swellable rubber strip absorbs water, it swells and protrudes out of the ground. The stronger the rainfall, the more water the water-swellable rubber strip absorbs, the more it swells and protrudes, and the greater the vibration when the vehicle passes by; the placement groove is inclined downward towards the free end; The number of the reminder modules corresponds to the number of the water-swellable rubber strips. The reminder module includes a pressure switch and a communication module. The pressure switch is arranged in the placement groove near the free end, and there is a gap between the pressure switch and the free end; when it rains, the gap is filled with rainwater. When the vehicle passes through the placement groove, it squeezes the water-swellable rubber strip to move towards the gap, pushing the rainwater in the gap. The rainwater squeezes or the free end squeezes the pressure switch to control the indicator light to turn on and give a warning to the following vehicle; An expansion sensor is arranged in the water-swellable rubber strip. The expansion sensor is electrically connected to the communication module. The cloud obtains the expansion data of the expansion sensor, calculates the rainfall intensity, and compares the rainfall data with the meteorological station around the water-swellable rubber strip every minute to verify the accuracy of the calculation. If the accuracy is insufficient, it is corrected and a warning is sent to the reminder device of the vehicle that is about to pass through this road and / or the indicator light is controlled to turn on.

2. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, characterized in that, The vehicle also includes a locator; The cloud obtains the positioning information of the locator, judges the driving direction of the vehicle according to the positioning information, locates the line where the vehicle is located according to the positioning information, obtains the weather change of the line where it is located, and sends it to the vehicle. If the weather change includes a change in rainfall intensity, a warning is sent to the vehicle in advance.

3. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 2, wherein The vehicle also includes an inputter. The line is the path between the starting point and the destination obtained after inputting the starting point and the destination through the inputter.

4. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, characterized in that, The road includes a top layer of fine-grained asphalt concrete layer, and the placement groove is opened on the fine-grained asphalt concrete layer.

5. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, characterized in that The reminder module also includes a radio, and the radio is communicatively connected to the cloud through the communication module; The cloud receives the audio from the road and the wheelbase of the vehicle collected by the radio, judges the sound interval generated when the front and rear wheels of the vehicle pass through the water-swellable rubber strip respectively by squeezing, calculates the speed of the vehicle through the wheelbase and the sound interval, and if it exceeds the preset speed, a warning is sent to the reminder device through the cloud.

6. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, wherein The reminder devices of different vehicles communicate with each other through the cloud; The vehicle is equipped with a vibration sensor. When the vehicle rolls over the water-swellable rubber strip that has swelled due to water absorption, the vibration sensor of the vehicle is activated. After activation, it sends vibration information to the cloud through the reminder device, and the cloud sends the vibration information to the reminder device of the vehicle that is about to pass through this road.

7. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, wherein A sunscreen coating is provided on the upper surface of the water-swellable rubber strip.

8. The highway traffic risk warning system based on the change of rainfall intensity on rainy days according to claim 1, characterized in that, The indicating lamp is arranged facing the oncoming vehicle direction of the road, and the height of the indicating lamp is greater than or equal to 3m.

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