CN114016450A

CN114016450A - Highway safe driving system

Info

Publication number: CN114016450A
Application number: CN202111433469.0A
Authority: CN
Inventors: 吴波; 罗业富; 陈娟
Original assignee: Sichuan Wuliang Wisdom Road And Bridge Technology Co ltd
Current assignee: Sichuan Zongheng Jiaoan Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-02-08
Anticipated expiration: 2041-11-29
Also published as: CN114016450B

Abstract

The invention discloses a highway safe driving system, comprising: the air suction unit is used for sucking air on the road surface; the purification unit is used for purifying the air sucked by the air suction unit and removing pollutants; the air curtain unit is used for forming a first air curtain above the road surface by the air purified by the purifying unit; the lighting unit is used for projecting a group of lighting rays and a group of yellow light, the lighting rays are projected to the road surface, and the yellow light is projected to the first air curtain from bottom to top. The invention aims to provide a safe driving system for an expressway, which aims to solve the problems of safety and operation caused by the influence of fog and haze weather on the sight of the expressway in the prior art and achieve the purpose of improving the driving safety of the expressway in the haze weather.

Description

Highway safe driving system

Technical Field

The invention relates to the field of intelligent highways, in particular to a highway safe driving system.

Background

The safe operation of the highway is a big matter related to the national civilization, and along with the increasing of the automobile holding amount, the emission of pollutants such as smoke dust suspended matters, automobile exhaust and the like is increased continuously, so that the atmospheric pollution of the highway and the surrounding area is increased increasingly, and the traffic operation environment is worsened increasingly.

According to the statistics of an authority department, in recent years, about 43257 traffic accidents happen on expressways in China every year, 6269 dead people and 18867 injured people, and according to the analysis of traffic accident factors, accidents caused by severe weather account for about 50% of the total number, wherein the proportion of the traffic accidents caused by fog and haze weather is as high as 30.8%. In addition, the phenomena of highway closure, traffic capacity reduction, vehicle congestion and the like are caused by fog and haze weather, and the safe operation of traffic and the normal life of people are seriously threatened.

Mist is the product of condensation or desublimation of water vapor in the near-surface layer of air and is an aerosol system consisting of a large number of tiny water droplets or ice crystals suspended in the near-surface air. Haze is a turbid phenomenon formed by suspending a large number of particles such as smoke and dust, and the core substance of the haze is dust particles suspended in the air, which are called aerosol particles in meteorology. The haze formation needs 3 basic conditions: first, air humidity, second, ambient temperature, and third, microparticle content. Fog and haze weather reduce air visibility, so that the sight distance of a driver is shortened sharply, the observation capability and the judgment capability of the driver are reduced, correct judgment cannot be made, the running speed of vehicles on the highway is reduced, the highway is closed in severe cases, the traffic capacity is reduced, and the operation benefit and the service level of the highway are reduced. The fog day also causes the adhesion coefficient of the highway to be reduced, the braking distance of the vehicle to be increased, and the occurrence of the highway chain rear-end collision or extra-large traffic accidents is easy to cause great casualties and economic loss.

The existing haze treatment measures are provided from the aspect of 'controlling driving'. A defogging vehicle is arranged on a highway in Utah in the United states to remove fog in a flowing mode, and liquid carbon dioxide is used for condensing the fog into water drops so as to achieve the aim of defogging. However, water drops are deposited on the road surface to cause the road surface to be wet and smooth, and the water drops are frozen in winter, and an antifreezing agent needs to be sprayed on the road surface. The Zhang Yang of the university of east China designed the ultrasonic defogging device. The device has high cost and the resonance condition is difficult to satisfy. The high-rooted tree of Lanzhou university proposes a novel centrifugal defogger, and the applicability of the device on roads is not great. Although the method reduces the occurrence of traffic accidents in the foggy days, the method cannot fundamentally solve the problem of driving safety in the foggy days, and the problems of low vehicle speed, low traffic capacity, low operation benefit, high investment and the like still exist. In addition, methods for controlling vehicle exhaust emission or multi-afforestation are also available, and long-term slow action is required.

The method can not radically solve the problem of highway traffic safety in fog and haze weather, and has the problems of high investment, low effect, wet and slippery caused by water drops deposited on the road surface, unfreezing by spraying antifreeze in winter and the like. The construction of the expressway in China is in a rapid development stage, and the influence range of fog and haze weather on the road is further expanded. Therefore, when road infrastructure is constructed, the advanced technology for ensuring the safety and efficient operation of roads under the conditions of fog and haze weather is researched, and the advanced technology is an urgent task for road researchers.

Disclosure of Invention

The invention aims to provide a safe driving system for an expressway, which aims to solve the problems of safety and operation caused by the influence of fog and haze weather on the sight of the expressway in the prior art and achieve the purpose of improving the driving safety of the expressway in the haze weather.

The invention is realized by the following technical scheme:

a highway safe driving system comprising:

the air suction unit is used for sucking air on the road surface;

the purification unit is used for purifying the air sucked by the air suction unit and removing pollutants;

the air curtain unit is used for forming a first air curtain above the road surface by the air purified by the purifying unit;

the lighting unit is used for projecting a group of lighting rays and a group of yellow light, the lighting rays are projected to the road surface, and the yellow light is projected to the first air curtain from bottom to top.

The invention provides a safe driving system for an expressway, which aims at the problems of traffic safety and limited operation caused by the influence of fog and haze weather on the sight of the expressway in the prior art. Air after purification unit handles gets into the air curtain unit, forms first air curtain at least, and first air curtain is located the road surface top, through the setting of first air curtain, can prevent sinking of fog, haze gas, constructs a safe driving space for highway surface, improves highway visibility requirement under fog, haze weather, improves road current capacity, reduces the traffic accident rate.

In addition, lighting unit in this application for throw a set of light and a set of yellow light, light throws the road surface, the yellow light throws from bottom to top first air curtain. The yellow light among them throws to first air curtain, through the refraction that contains the haze air on the first air curtain, by the small water droplet of fog or the refraction return road surface of haze granule, with directly throw the illumination light to the road surface together, form mixed light illumination jointly, constitute highway's safe driving space. The lighting unit of this application compares with traditional street lamp lighting methods through: the yellow light has a scattering effect, so that the light beam can be scattered to the front as far as possible to form a light cluster with a large area, a driver can see a target clearly and reduce light pollution, the dazzling light interference on the driver caused by too strong illuminating light beam is avoided, the sufficient scattering and uniform distribution of road surface light are ensured, the illumination requirement of the highway under special weather such as fog and haze and even night illumination is met, the road traffic capacity is improved, the traffic accident rate is reduced, the safety of the sight of the driver above the road is ensured, the traffic running environment of the highway is improved, and the aims of safe and efficient running of the highway under the fog, haze and night conditions are fulfilled.

It should be noted that the principle that the present application can be normally implemented is as follows: because the sight line space required by the driving on the expressway has limitation, fog and haze in the air do not need to be completely eliminated, and the expressway can be safely and normally driven at high speed as long as the safety sight line space of the driver on the expressway has better visibility.

Furthermore, the air suction unit comprises an air inlet pipe arranged along the length direction of the road surface, a fan communicated with the air inlet pipe, and a plurality of air suction drums distributed on the air inlet pipe, wherein the suction ends of the air suction drums incline upwards towards the direction of the road surface. The air inlet pipe is arranged along road surface length direction in this scheme, can arrange and use as the guardrail in road surface both sides, also can arrange in the middle of the road as the partition use of two-way lane, consequently can replace traditional equipment such as guardrail, or as the equipment of addding, also has extremely strong functionality when normal weather.

Furthermore, the purification unit comprises hollow upright columns communicated with two ends of the air inlet pipe and air purification equipment positioned in the hollow upright columns, and the bottoms of the hollow upright columns are communicated with underground sewage discharge pipelines. This application connects the cavity stand at the both ends of air-supply line, makes the inside and the inside intercommunication of air-supply line of cavity stand, and in the cavity stand of both sides was got into through the air-supply line to the inhaled air, the air purification equipment in the rethread cavity stand purified, and the air admission air curtain unit after the purification outwards discharges, and then gets into low sewage pipes and discharge away by the debris of crossing. The hollow upright post of the scheme can be used as an upright post of a traditional guardrail and has the functions of an airflow channel in the purification process and a sewage channel of wastes.

Furthermore, the air curtain unit includes with the play tuber pipe of cavity stand intercommunication, set up the first air outlet that discharge end inclines upwards towards the road surface direction on the play tuber pipe. This scheme sets up a plurality of tuber pipes on the cavity stand, and the air after being purified is through going out the tuber pipe, inclines ascending discharge towards road surface top to stable first air curtain of formation.

Furthermore, the air outlet pipe is parallel to the air inlet pipe, the air outlet pipe is positioned above the air inlet pipe, and the first air outlet is higher than the air suction barrel. The air outlet pipe is parallel to the air inlet pipe, and the air outlet pipe and the air inlet pipe can jointly form a double-layer structure to be used as a more stable guardrail. The first air outlet is higher than the air suction barrel, so that the air suction barrel absorbs air from the lower part of the first air curtain, and the air close to the road surface is ensured to be absorbed, and the air in the safe sight range of a driver is ensured to be processed.

Furthermore, the air curtain unit also comprises a second air outlet arranged on the air outlet pipe, and the discharge end of the second air outlet inclines downwards towards the outer side of the road surface; the second air outlet is used for forming a second air curtain on the outer side of the road surface by the air purified by the purifying unit. The second air curtain can form outside air curtain in road both sides, reduces the haze edgewise and invades road surface top space possibility, improves the protective capacities to the visibility in the driver's safe sight scope more.

Further, the purification unit further comprises a heating and drying device located downstream of the air purification device. The heating and drying equipment is used for heating and interfering purified air, so that the air forming the air curtain is subjected to heating treatment, the hot air can flow upwards to prevent fog and haze from sinking, a safe driving space is further formed, the visibility requirement under fog and haze weather of the expressway is met, and further the road traffic capacity is improved, and the traffic accident rate is reduced.

Furthermore, the included angle between the air inlet pipe and the vertical direction is 125-135 degrees; the included angle between the first air outlet and the vertical direction is 125-135 degrees, and the ground clearance of the first air outlet is 4-5 meters; the included angle between the second air outlet and the vertical direction is 35-45 degrees, and the ground clearance of the second air outlet is 0.2-0.4 m; the ground clearance of the air inlet pipe is positioned between the first air outlet and the second air outlet. Through strict calculation and experimental result show, this application can satisfy the safe driving requirement under the parameter of this scheme, and the effect of defogging, haze is optimum, and visibility is best, the best energy can be saved.

Furthermore, a partition board is arranged in the suction funnel, and divides the interior of the suction funnel into a first cavity with the suction opening and a second cavity with the exhaust opening; the inner wall of the air suction barrel is provided with a first sliding groove and a second sliding groove, the axes of the first sliding groove and the second sliding groove are parallel to the connecting line of the air suction opening and the air outlet, the partition board is in sliding fit with the first sliding groove and the second sliding groove, and the partition board is gradually inclined downwards from the direction close to the first sliding groove to the direction close to the second sliding groove; the slag discharging device also comprises an elastic piece arranged in the first chute, a slag discharging port arranged in the second chute and a plurality of air holes arranged on the partition plate; the slag discharge port is communicated to the outer side of the air suction cylinder; when no load is on the clapboard, the elastic piece enables the clapboard to slide to the top end of the stroke, and the slag discharge port is positioned below the clapboard.

In addition, because the suction cylinder slope upwards arranges in this application, the large granule debris in the atmosphere get into the rear end through the suction cylinder easily and set up and lead to it impaired, especially when meeting with sand dirt weather, because sand dirt is subsided in a large number of in the short time, get into in a large number more easily and lead to blockking up or damaging. Based on this, this scheme improves the inner structure of inhaling the section of thick bamboo:

the air suction barrel is connected with the air inlet pipe through an air outlet and sucks air from the air inlet. This scheme sets up the baffle in the aspiration channel, through the baffle with the inside two parts that divide into of aspiration channel, wherein the one side towards the inlet scoop is first cavity, and the one side towards the air exit is the second cavity. This scheme median septum and aspiration channel inner wall sliding fit, the axis direction of slip direction along first spout and second spout, is along the line direction of inlet scoop and air exit promptly. And the baffle inclines downwards gradually from the direction close to the first chute to the direction close to the second chute, the downward inclination is in the vertical direction, and the height of the baffle close to one end of the second chute is lower than that of the baffle close to one end of the first chute, so that sundries falling on the baffle can automatically slide towards the second chute under the action of gravity. The elastic force of the elastic member acts on the partition for normally pushing the partition to move upward or have an upward tendency. When the scheme is used specifically, the elastic piece drives the partition board to slide to the top end of the stroke in the air suction cylinder, and at the moment, the upper surface of the partition board is not communicated with the slag discharge port; when sundries gradually enter the air suction barrel and are stacked on the partition plate, or when a large amount of sand and dust rapidly enter the air suction barrel and are stacked on the partition plate in sand and dust weather, the gravity of the partition plate overcomes the elasticity of the elastic piece to drive the partition plate to gradually slide downwards after the load on the partition plate is larger, and when the partition plate slides to be as high as the slag discharge port or is positioned below the slag discharge port, the heavy object on the partition plate can slide towards the direction of the second sliding chute on the inclined partition plate, so that the heavy object can be automatically discharged outwards from the slag discharge port; when certain sundries are discharged, the load on the partition plate is reduced, the elastic piece drives the partition plate to move upwards again, and the process is repeated. In the scheme, air enters the second cavity from the air holes, and disturbance of the air can accelerate outward discharge of sundries to a certain degree. Certainly, in this scheme, because need use the bleeder vent to let the air pass through the baffle, therefore some small particle debris such as PM2.5 can get into the second cavity inevitable, but this does not influence this scheme to the processing of big granule debris such as sand and dust, and the setting of this scheme is just in order to reduce debris interference too, suitably improves the ability of resisting bad weather such as sand and dust, and not in order to eliminate this interference completely.

Furthermore, a plurality of baffle plates which are distributed in a staggered manner are arranged in the first cavity, and each baffle plate comprises a fixed end fixed on the inner wall of the air draft tube and a suspended end suspended in the air draft tube; the suspension end is not contacted with the inner wall of the suction tube as the name implies, and a gap for air flow to pass through is inevitably formed between the end part of the suspension end and the inner wall of the suction tube. A plurality of baffles distribute in the crisscross in first cavity, at first all the baffles all are located the baffle top, and secondly the baffle of crisscross distribution can provide the flow passage of approximate "it" style of calligraphy for inspiratory air current makes the air current of smuggleing granule debris secretly constantly pat on each baffle, is favorable to separating out in holding in the palm from wrapping up in of air current with granule debris, can reduce its risk that causes the jam in extrudeing to the venthole along with the air current flows fast to a certain extent.

The horizontal height of the fixed end is higher than that of the suspended end; the baffle plate is gradually inclined towards the air outlet from the fixed end to the suspended end; the particle impurities falling on each baffle can fall downwards under the action of gravity and finally fall onto the partition plate.

For any two adjacent baffles, the projection of the suspended end of the baffle positioned above falls on the surface of the baffle positioned below along the connecting line direction of the air suction opening and the air outlet; the particle sundries which slide from the upper baffle can fall to the surface of the lower baffle, so that the particle sundries slide in sequence, and the possibility that the particle sundries are wrapped by the airflow again due to the overlarge dropping distance is reduced.

The first sliding groove and the second sliding groove are distributed on two opposite sides of the inner wall of the air suction barrel; the opposite ends of the partition board are provided with a first sliding block and a second sliding block which are respectively matched with the first sliding groove and the second sliding groove; the elastic piece is a spring arranged at the bottom end of the first sliding chute and the bottom end of the first sliding block; when the second sliding block is positioned at the bottom end of the stroke, the slag discharging port is positioned above the partition plate so as to ensure effective and automatic discharge of large-particle impurities;

the partition plate comprises a body part close to the first sliding groove and a sinking part close to the second sliding groove; a step surface is arranged between the body part and the sinking part; the part of the partition board close to the second chute sinks, namely sinks towards the direction of the air outlet, so that large-particle sundries accumulated on the partition board slide to one side close to the second chute and enter the sinking part for temporary storage, and more large-particle sundries can be temporarily stored; in addition, the existence of the step surface can also ensure that a relatively stable storage space is arranged on the sinking part before the partition board slides downwards to the lower part of the slag discharge port, and the storage space is jointly formed by the upper surface of the sinking part, the inner wall of the suction barrel or the inner wall of the second sliding chute and the step surface.

The upper surface of the sinking part is gradually inclined towards the air outlet from one end close to the body part to one end close to the second sliding chute; the upper surface of the sinking part is also the surface which is inclined downwards towards the air outlet, which is beneficial to the large-particle sundries on the sinking part to automatically slide to the direction of the air outlet.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. according to the highway safe driving system, the first air curtain is arranged, so that the sinking of fog and haze gases can be prevented, a safe driving space is constructed on the surface of a highway, the visibility requirement of the highway in fog and haze weather is improved, the road traffic capacity is improved, and the traffic accident rate is reduced.

2. The invention relates to a highway safe driving system, wherein an illumination unit and an air curtain unit are matched for action, yellow light is projected to a first air curtain, and is refracted by haze-containing air on the first air curtain, micro water drops or haze particles of fog are refracted to a road surface and form mixed light illumination together with illumination light directly projected to the road surface, so that a safe driving space of a highway is formed, light beams can be spread forwards to form light clusters with larger areas as far as possible, a driver can see a target and reduce light pollution, glare interference on the driver caused by over-strong illumination light beams is avoided, the full scattering and uniform distribution of the light on the road surface is ensured, the illumination requirements of the highway under special weather such as fog, haze and the like, even night illumination are met, the road traffic capacity is improved, the traffic accident rate is reduced, and the safety of the sight of the driver above the road is ensured, the highway traffic operation environment is improved, and the purpose of safe and efficient highway operation under the conditions of fog and haze and night is achieved.

3. The highway safe driving system provided by the invention is formed by adopting the pipeline and the upright post which are in an integrated structure of the protective guard, has the functions of collision prevention, air spraying, air suction, flow guiding and the like, does not occupy additional space, and realizes the effects of multiple purposes and multiple functions.

4. According to the highway safe driving system, the road illumination unit can be directly arranged on each air pipe, expensive lamp posts and high-illumination light sources are not needed, the manufacturing cost can be saved by more than 90%, and the highway safe driving system is more convenient to install and maintain. And the light can reach the ground to be illuminated only after 5-10 meters, compared with the common street lamp and the automobile lamp which respectively need 30 meters or 100 meters to reach the object to be illuminated, the lighting efficiency is higher, about 90 percent of electricity charge and about 10 percent of gasoline charge for automobile illumination can be saved, the resource waste is greatly reduced, the environmental pollution and damage to the nature are reduced, and the purposes of energy conservation and emission reduction are effectively realized.

5. According to the highway safe driving system, when the highway safe driving system is started in haze weather, the lighting unit cannot illuminate the space above the first air curtain, so that the height of the first air curtain can be set to be about 0.85m, the height of the eyes of a general driver and the height of the rearview mirrors at two sides of an automobile from the ground are about 0.9 m, the road condition from the height above the ground to 0.85m can be seen clearly, the highway safe driving system cannot be disturbed by glare of a lighting lamp, and the highway safe driving system is more attentive and safer to drive.

6. According to the highway safe driving system, the processing space of fog and haze is controlled within the safe sight range of a driver above a road, so that the total processing amount of fog is reduced, the energy consumption is reduced, the original road facilities are fully considered to be improved, the newly added facility construction is reduced, and the dual purposes of fog and haze purification, road illumination and capital investment reduction are achieved.

7. The invention discloses a highway safe driving system, and also provides a special air suction cylinder internal structure, which overcomes the problem that the system is easily interfered by sand and dust and the like in extreme weather, and improves the capability of the system for resisting the severe weather such as sand and dust.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the gas flow and light flow directions in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an air suction funnel in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a partition plate in the air suction duct according to the embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-an air suction barrel, 101-a first cavity, 102-a second cavity, 103-a first chute, 104-a second chute, 2-a clapboard, 201-a first slide block, 202-a second slide block, 203-a body part, 204-a sinking part, 3-an elastic part, 4-a slag discharge port, 5-an air vent, 6-a baffle, 7-an air inlet pipe, 8-a fan, 9-a hollow upright post, 10-an air outlet pipe, 11-a first air outlet and 12-a second air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1:

as shown in fig. 1 and 2, a safe driving system for a highway includes:

the air suction unit is used for sucking air on the road surface;

Wherein:

the air suction unit comprises an air inlet pipe 7 arranged along the length direction of the road surface, a fan 8 communicated with the air inlet pipe 7 and a plurality of air suction drums 1 distributed on the air inlet pipe 7, wherein the suction ends of the air suction drums 1 incline upwards towards the direction of the road surface.

The purification unit comprises hollow upright posts 9 communicated with two ends of the air inlet pipe 7 and air purification equipment positioned in the hollow upright posts 9, and the bottoms of the hollow upright posts 9 are communicated with an underground sewage pipeline.

The air curtain unit comprises an air outlet pipe 10 communicated with the hollow upright post 9, and a first air outlet 11 with an exhaust end inclined upwards towards the road surface direction is arranged on the air outlet pipe 10. The air outlet pipe 10 is parallel to the air inlet pipe 7, the air outlet pipe 10 is located above the air inlet pipe 7, and the first air outlet 11 is higher than the air suction barrel 1.

Preferably, the air curtain unit further comprises a second air outlet 12 arranged on the air outlet pipe 10, and a discharge end of the second air outlet 12 inclines downwards towards the outer side of the road surface; the second air outlet 12 is used for forming a second air curtain on the outer side of the road surface by the air purified by the purifying unit.

Preferably, the purification unit further comprises a heat drying device located downstream of the air purification device.

Preferably, an environment monitoring device is further arranged on the hollow upright post 9 and used for monitoring the current air pollution condition, and then the system is automatically started according to the air pollution condition.

Preferably, the angles of the air outlets and the air inlets of the air curtains are important indexes for controlling the fog and haze purification range (namely, the sight line range meeting the road traffic safety), the coupling effect of the gas, liquid and solid 3-phase motion needs to be considered in the air flow motion, a mathematical model needs to be established by utilizing the aerosol particle motion theory, the influences of factors such as air flow, vehicle speed, lane width, air flow pressure and the like are integrated, the indexes such as the angles, the orifices, the heights and the like of the end parts of the air outlets and the air inlets on the road are determined, so that the air flow motion track is controlled, and the formed air curtain guarantees the fog dissipation space required by the road traffic safety. And establishing a rectangular coordinate system by taking the intersection point of the road cross section and the axis of the protective guard as an origin. The trajectory equation of the hot gas ejected from the air curtain air nozzle is determined by using the principle, and the angles of the air curtain air nozzle and the air suction port are obtained by using the properties of a derivative function and a tangent function. The following results are obtained in this example by rigorous calculation and experiment: the included angle between the air inlet pipe 7 and the vertical direction is 125-135 degrees; the included angle between the first air outlet 11 and the vertical direction is 125-135 degrees, and the height of the first air outlet 11 from the ground is 4-5 meters; the included angle between the second air outlet 12 and the vertical direction is 35-45 degrees, and the height of the second air outlet 12 from the ground is 0.2-0.4 m; the height of the air inlet pipe 7 from the ground is between the first air outlet 11 and the second air outlet 12.

Preferably, a solar power generation and energy storage device can be additionally arranged on the air inlet pipe 7 and/or the air outlet pipe 10, so that self-sufficiency of energy, energy conservation, emission reduction and environmental protection are realized. In addition, the solar power generation device forms a barrier in a safe driving space in the haze treatment process, external haze gas is effectively prevented from flowing in, and the influence of automobile noise on surrounding residents is reduced.

It will be appreciated by those skilled in the art that fog is a natural phenomenon, a visible aggregate of a large number of tiny water droplets (or ice crystals) suspended in the atmosphere proximate to the ground. The haze is also called dust haze (smoky clouds), is mainly caused by human factors, and is caused by particles such as dust, sulfuric acid, nitric acid, organic hydrocarbon and the like in the air to make the atmosphere turbid, and the visual field is blurred, so that the visibility is deteriorated. The difference between fog and haze is as follows:

1. the visibility ranges are different; the horizontal visibility of fog is less than 1 kilometer, and the horizontal visibility of haze is less than 10 kilometers.

2. The relative humidity is different; the relative humidity of the fog is more than 90 percent, the relative humidity of the haze is less than 80 percent, the relative humidity between 80 and 90 percent is a mixture of the haze and the fog, but the main component of the fog is the haze.

3. The thicknesses are different; the thickness of the fog is only about dozens of meters to 200 meters, and the thickness of the haze can reach about 1-3 kilometers.

4. The boundary features are different; the boundary of the fog is clear, the 'fog region' passing through the fog window can be clear in clear sky, but no obvious boundary exists between the haze and the clear sky region.

5. The colors are different; the fog color is milky white and bluish white, and the haze color is yellow and orange gray.

6. The daily variation is different; fog is generally most likely to occur during the midnight to early morning; the daily change characteristic of haze is not obvious, and when the air mass is not changed greatly and is stable, the lasting time is longer.

Because the sight line space required by the driving on the expressway has limitation, fog and haze in the air do not need to be completely eliminated, and the expressway can be safely and normally driven at high speed as long as good visibility in the safe sight line space of the driver can be ensured.

The present embodiment has the following advantages:

1. the invention improves the original auxiliary facilities of roads such as guard rails, slope protection facilities and the like, and realizes the power generation functions of system suction, air injection and solar energy on the basis of the original functions; after the energy storage device is used for storing full electricity, redundant electric energy can be transmitted to power supply facilities along the line for use. Through the design of the two aspects, the investment of newly added facilities and the consumption of energy are reduced, the capital investment of the system is reduced, and the adaptability and the economical efficiency of the system are improved.

2. The control and detection device can detect meteorological data in real time, reflect the change condition of weather at the first time, and timely start the system to carry out fog and haze purification treatment; inhale wet fog, the haze gas above the road, through dehumidifier, deep-effect filter processing back blowout dry clean gas, realize gas exchange fast in making road fog, the haze district, compare with traditional fog, haze processing technology, the dissipation of fog, haze is more timely, high-efficient.

3. The invention is composed of a plurality of mutually independent structural units, each structural unit is responsible for a corresponding road section, and each part is flexibly and conveniently constructed, connected, disassembled and assembled so as to facilitate later maintenance and updating of the system. Therefore, the invention has good controllability.

4. Compared with the existing demisting method, the demisting and haze-removing method has the advantages that water and dust generated by demisting and haze are directly discharged into the underground drainage pipeline through the pipeline, water is not deposited on the road surface, the problems that the vehicle speed is reduced, the vehicle braking distance is increased due to the fact that the road surface adhesion coefficient is reduced due to water accumulation, and the like are solved, and the driving safety is improved.

5. The lighting system adopts LED stepless dimming and forward lighting technologies, one group of warm light is projected to a road surface, the other group of yellow light is projected to an air curtain above the road, and the yellow light forms mixed light through the tiny water drops of fog or ice crystal refraction loop surface to form a safe driving space of the expressway. The yellow light has scattering effect, so that the light beam can be scattered forward as far as possible to form light clusters with large area, and the driver can see the target clearly and reduce light pollution. The illumination requirements of illumination under fog and haze weather of the expressway and at night are met, the road traffic capacity is improved, and the traffic accident rate is reduced.

The street lighting lamp is directly arranged on the air pipe in the embodiment, an expensive lamp post and a high-illumination light source are not needed, the manufacturing cost can be saved by more than 90%, and the street lighting lamp is more convenient to install and maintain. And after the light reaches the object to be illuminated only after 5-10 meters, compared with a common illuminating lamp and an automobile lamp which respectively need 30 meters or 100 meters, the illuminating efficiency is higher, about 90% of electricity charge and about 10% of gasoline charge for automobile illumination can be saved, the resource waste is greatly reduced, the environmental pollution and damage to the nature are reduced, and the purposes of energy conservation and emission reduction are effectively realized. And the light can not illuminate the space more than 0.85 meter, and the eyes of general driver and the automobile both sides rear-view mirror all are about 0.9 meter apart from ground height, consequently only need see clearly by more than the ground to the road conditions of 0.85 meter height can, can not be puzzled by the dazzling light of light, drive more attentively, safer. In addition, the side residual light of the illuminating lamp forms a plurality of guide lines to guide the driver to move forwards, so that the driver can clearly know the positions of the two side road shoulders and the branch lines even in the environment of heavy rain, heavy snow and heavy fog, and the driver can drive the vehicle more safely.

Example 2:

based on embodiment 1's a highway safe driving system, this embodiment improves the optimization to suction duct 1:

as shown in fig. 3, the suction tube 1 includes a suction opening and an exhaust opening which are distributed up and down, a partition plate 2 is arranged in the suction tube 1, and the partition plate 2 divides the interior of the suction tube 1 into a first cavity 101 with the suction opening and a second cavity 102 with the exhaust opening; the inner wall of the air suction barrel 1 is provided with a first sliding groove 103 and a second sliding groove 104, the axes of the first sliding groove 103 and the second sliding groove 104 are parallel to the connecting line of the air suction opening and the air exhaust opening, the partition board 2 is in sliding fit with the first sliding groove 103 and the second sliding groove 104, and the partition board 2 gradually inclines downwards from the direction close to the first sliding groove 103 to the direction close to the second sliding groove 104; the slag-removing device also comprises an elastic part 3 arranged in the first chute 103, a slag discharge port 4 arranged in the second chute 104 and a plurality of air holes 5 arranged on the partition board 2; the slag discharge port 4 is communicated to the outer side of the air suction barrel 1; when no load is applied to the clapboard 2, the elastic piece 3 enables the clapboard 2 to slide to the top end of the stroke, and the slag discharge port 4 is positioned below the clapboard 2.

On the basis of embodiment 1, as shown in fig. 3 and 4, a plurality of baffles 6 are disposed in the first cavity 101, and each baffle 6 includes a fixed end fixed on the inner wall of the suction barrel 1 and a suspended end suspended inside the suction barrel 1. The horizontal height of the fixed end is higher than that of the suspended end; and the baffle 6 is gradually inclined towards the direction of the air outlet from the fixed end to the suspended end. For any two adjacent baffles 6, the projection of the suspended end of the baffle 6 positioned above falls on the surface of the baffle 6 positioned below along the connecting line direction of the air suction opening and the air outlet.

The first sliding groove 103 and the second sliding groove 104 are distributed on two opposite sides of the inner wall of the air suction barrel 1; the opposite ends of the partition board 2 are provided with a first sliding block 201 and a second sliding block 202 which are respectively matched with the first sliding groove 103 and the second sliding groove 104. The elastic part 3 is a spring arranged at the bottom end of the first sliding chute 103 and the bottom end of the first sliding block 104; when the second slide block 202 is positioned at the bottom of the stroke, the slag discharge port 4 is positioned above the partition plate 2. The partition plate 2 includes a body portion 203 near the first chute 103, a depressed portion 204 near the second chute 104; a step surface is provided between the body portion 203 and the depressed portion 204.

The upper surface of the depressed portion 204 gradually inclines toward the air outlet from the end close to the body portion 203 to the end close to the second chute 104. The ventilation holes 5 are all positioned on the body part 203.

In a more preferred embodiment, the length of the first sliding groove 103 is greater than that of the second sliding groove 104, so that when the second sliding block slides to the bottom end of the stroke, the first sliding block still has a sliding margin, and the installation and effective compression of the spring are ensured.

In a more preferred embodiment, the diameter of the air holes 5 is 1 to 2 mm.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Further, the term "connected" used herein may be directly connected or indirectly connected via other components without being particularly described.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A highway safe driving system, comprising:

the air suction unit is used for sucking air on the road surface;

2. The highway safe driving system according to claim 1, wherein the air suction unit comprises an air inlet pipe (7) arranged along the length direction of the road surface, a fan (8) communicated with the air inlet pipe (7), and a plurality of air suction drums (1) distributed on the air inlet pipe (7), and the suction ends of the air suction drums (1) are inclined upwards towards the direction of the road surface.

3. A highway safety driving system according to claim 2, characterized in that the purifying unit comprises a hollow upright post (9) communicated with two ends of the air inlet pipe (7), and an air purifying device positioned in the hollow upright post (9), wherein the bottom of the hollow upright post (9) is communicated with an underground sewage discharge pipeline.

4. A system as claimed in claim 3, wherein the air curtain unit comprises an air outlet pipe (10) communicating with the hollow upright post (9), and the air outlet pipe (10) is provided with a first air outlet (11) having a discharge end inclined upward toward the road surface.

5. The highway safe driving system according to claim 4, characterized in that the air outlet pipe (10) is parallel to the air inlet pipe (7), the air outlet pipe (10) is located above the air inlet pipe (7), and the first air outlet (11) is higher than the air suction barrel (1).

6. The highway safe driving system according to claim 4, wherein the air curtain unit further comprises a second air outlet (12) arranged on the air outlet pipe (10), and the discharge end of the second air outlet (12) inclines downwards towards the outer side of the road surface; the second air outlet (12) is used for forming a second air curtain on the outer side of the road surface by the air purified by the purifying unit.

7. A highway safety driving system according to claim 3 wherein said purifying unit further comprises a heat drying device located downstream of the air purifying device.

8. The highway safe driving system according to claim 6, wherein the included angle between the air inlet pipe (7) and the vertical direction is 125-135 degrees; the included angle between the first air outlet (11) and the vertical direction is 125-135 degrees, and the ground clearance of the first air outlet (11) is 4-5 meters; the included angle between the second air outlet (12) and the vertical direction is 35-45 degrees, and the ground clearance of the second air outlet (12) is 0.2-0.4 m; the height of the air inlet pipe (7) from the ground is positioned between the first air outlet (11) and the second air outlet (12).

9. The highway safe driving system according to claim 2, characterized in that a partition plate (2) is arranged in the air suction barrel (1), and the partition plate (2) divides the interior of the air suction barrel (1) into a first cavity (101) with the air suction opening and a second cavity (102) with the air exhaust opening; a first sliding groove (103) and a second sliding groove (104) are arranged on the inner wall of the air suction barrel (1), the axes of the first sliding groove (103) and the second sliding groove (104) are parallel to the connecting line of the air suction opening and the air exhaust opening, the partition plate (2) is in sliding fit with the first sliding groove (103) and the second sliding groove (104), and the partition plate (2) is gradually inclined downwards from the direction close to the first sliding groove (103) to the direction close to the second sliding groove (104); the slag-removing device also comprises an elastic piece (3) arranged in the first chute (103), a slag discharge port (4) arranged in the second chute (104), and a plurality of air holes (5) arranged on the partition plate (2); the slag discharge port (4) is communicated to the outer side of the air suction cylinder (1); when no load is applied to the partition plate (2), the elastic piece (3) enables the partition plate (2) to slide to the top end of the stroke, and the slag discharge port (4) is located below the partition plate (2).

10. The highway safety driving system according to claim 9, wherein a plurality of baffles (6) are arranged in the first cavity (101) in a staggered manner, and each baffle (6) comprises a fixed end fixed on the inner wall of the air draft tube (1) and a suspended end suspended in the air draft tube (1); the horizontal height of the fixed end is higher than that of the suspended end; the baffle (6) is gradually inclined towards the air outlet from the fixed end to the suspended end; for any two adjacent baffles (6), the projection of the suspended end of the baffle (6) positioned above falls on the surface of the baffle (6) positioned below along the connecting line direction of the air suction opening and the air outlet;

the first sliding groove (103) and the second sliding groove (104) are distributed on two opposite sides of the inner wall of the air suction barrel (1); a first sliding block (201) and a second sliding block (202) which are respectively matched with the first sliding groove (103) and the second sliding groove (104) are arranged at two opposite ends of the partition plate (2); the elastic piece (3) is a spring arranged at the bottom end of the first sliding chute (103) and the bottom end of the first sliding block (104); when the second sliding block (202) is positioned at the bottom end of the stroke, the slag discharge port (4) is positioned above the partition plate (2); the partition plate (2) comprises a body part (203) close to the first chute (103) and a sinking part (204) close to the second chute (104); a step surface is arranged between the body part (203) and the sinking part (204); the upper surface of the sinking part (204) gradually inclines towards the air outlet from one end close to the body part (203) to one end close to the second sliding chute (104).