CN113112832A - Fog region highway interchange safety guiding system and method - Google Patents
Fog region highway interchange safety guiding system and method Download PDFInfo
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- CN113112832A CN113112832A CN202110407987.9A CN202110407987A CN113112832A CN 113112832 A CN113112832 A CN 113112832A CN 202110407987 A CN202110407987 A CN 202110407987A CN 113112832 A CN113112832 A CN 113112832A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/048—Detecting movement of traffic to be counted or controlled with provision for compensation of environmental or other condition, e.g. snow, vehicle stopped at detector
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
Abstract
The invention discloses a fog region expressway interchange safety guiding system and a fog region expressway interchange safety guiding method, wherein the fog region expressway interchange safety guiding system comprises the following steps: the visibility detector is arranged in a preset range of the expressway interchange and used for detecting the visibility in the preset range of the expressway interchange; the detection device is arranged at a position which is a preset distance away from the entrance of the expressway interchange and is used for detecting vehicles which are about to pass through the entrance of the expressway interchange; the landmark lines are provided with uniformly distributed controllable lamp points; and the guide lamps are arranged on two sides of the expressway interchange. By the real-time guiding system and the real-time guiding method, the direction of the vehicle which is about to or has already run into the highway interchange section in the fog area can be accurately guided, and the safety of the running vehicle in the highway interchange in the fog area is further improved.
Description
Technical Field
The invention relates to the technical field of highway traffic, in particular to a safety guidance system and a safety guidance method for interchange of highways in a fog region.
Background
Under the condition that the interchange type interchange is complex and traffic accidents are easy to occur, the risk of the traffic accidents is increased when the interchange type interchange is partially positioned in a fog area. In the foggy area, on the one hand, the driver may have errors in road identification, resulting in driving into the wrong road, and on the other hand, the driver may hit a guardrail or rush out of the road because the road track ahead cannot be judged in the case of too low visibility.
To the scheme of solving this problem among the prior art, all remind the guide to the vehicle of traveling based on the induction unit basically, but still can have some safety problems, can not face the assurance vehicle can not take place the traffic accident entirely. Therefore, how to improve the driving safety of vehicles on the interchange type interchange road section of the expressway in the fog region is still an urgent problem to be solved.
Disclosure of Invention
In view of this, the embodiment of the invention provides a system and a method for guiding safety of an interchange of a highway in a fog area, so as to solve the technical problem in the prior art that vehicles at the interchange of the highway in the fog area have low driving safety.
According to a first aspect, an embodiment of the present invention provides a guidance system for a highway interchange in a fog region, including: the visibility detector is arranged in a preset range of the expressway interchange and used for detecting the visibility in the preset range of the expressway interchange; the detection device is arranged at a position which is a preset distance away from the entrance of the expressway interchange and is used for detecting vehicles which are about to pass through the entrance of the expressway interchange; the landmark lines are provided with uniformly distributed controllable lamp points; and the guide lamps are arranged on two sides of the expressway interchange.
The guidance system for the interchange of the highway in the fog area provided by the embodiment of the invention adopts the combination of the visibility detector and the detection device, can monitor the visibility of the road section in the fog area in real time, and ensures that the whole guidance system can make corresponding guidance measures according to the real-time visibility value; the detection device is configured to enable the whole system to be started when a vehicle passes by, and the guide system is not started when other vehicles do not pass by, so that the whole guide system can be made the best use of things, and resources are saved; the landmark lines with the uniformly distributed controllable lamp points are adopted, so that the landmark lines of the guiding direction are highlighted, and the guiding direction of the vehicle which is about to or enters the foggy road section can be more obviously and directly; on the basis, the guiding lamps are arranged on two sides of the highway, so that the guiding direction can be guided, the warning effect of the edge position of the guardrail can be played, and running vehicles can be prevented from colliding with the guardrail or rushing out of the road surface.
With reference to the first aspect, in a first embodiment of the first aspect, the landmark lines are disposed at the highway interchange entrance, and the farther the landmark lines are from the highway interchange entrance, the larger the spacing is; or the landmark lines are uniformly arranged on the road surface of the highway interchange road section.
In order to ensure that the ground mark lines can effectively play a role in guiding, the system arranges the ground mark lines provided with uniformly distributed controllable light points at the entrance of the interchange of the expressway and the whole fog area road section, and arranges the ground mark lines at the entrance of the interchange of the expressway, so that the guidance direction of a vehicle about to enter the interchange road section is realized on one hand, the warning effect is realized on the other hand, the driving vehicle is reminded of entering the fog area road section, the driving vehicle can be kept in a warning state, the front road section condition is noticed, the safety of the vehicle in the fog area road section is improved under the condition that safety accidents are caused by the carelessness of the driving vehicle is reduced; in order to guide the running vehicle according to the running conditions of different road sections, the arrangement of the landmark lines is also planned, the distance between the front and rear adjacent landmark lines is gradually increased from the entrance, the distance is changed continuously, the running vehicle can be gradually guided to adapt to the running environment of the road section in the foggy area under the guidance of the ground landmark lines with gradually changed distances, the caution form is kept, the vehicle is driven carefully, and the safety of the vehicle in the running process of the foggy area can be improved from the driving condition of the running vehicle.
With reference to the first aspect, in a second embodiment of the first aspect, the system further includes a control device, connected to the visibility detector, the detecting device, the landmark line and the guide lamp, respectively, for controlling the landmark line and the guide lamp according to the visibility values and the vehicle information detected by the visibility detector and the detecting device.
In order to ensure that the whole system can operate effectively, the guide system for the interchange of the expressway in the fog area is further provided with a control device which is used for receiving information of a visibility detector and a detection device, controlling a guide lamp and a landmark line to emit light and display according to corresponding information and guiding a running vehicle to run safely, and the guide system is additionally provided with a core control device which can ensure that the whole system can operate controllably and can control the guide device to guide the running vehicle in real time according to different conditions, so that the running safety of the running vehicle on the section of the fog area is improved.
With reference to the second embodiment of the first aspect, in the third embodiment of the first aspect, the vehicle information detected by the detecting device includes a vehicle type, a license plate number, a running speed, and a running track of the vehicle.
According to the guidance system for the interchange of the highway in the fog area, provided by the embodiment of the invention, the detection device is not only arranged at the entrance of the interchange of the highway, but also other detection devices are arranged in the preset range of the road section of the whole fog area, so that the vehicle information of the running vehicle can be monitored in the road section of the whole fog area, the control device can control the guide lamp and the landmark line to make corresponding guidance measures according to different vehicle information, and the running safety of the running vehicle in the road section is further improved.
With reference to the second embodiment of the first aspect, in the fourth embodiment of the first aspect, the method further includes: and the dynamic speed limit sign is arranged at a preset distance in front of the entrance of the expressway interchange for receiving the speed limit control instruction output by the control device according to different visibility and dynamically updating.
The guiding system for the interchange of the expressway in the fog area, provided by the embodiment of the invention, is also provided with the dynamic speed limit mark, so that a proper driving speed limit can be preset according to different visibility, the speed of the vehicle can be adjusted before the vehicle enters the road section in the fog area, traffic accidents caused by the fact that the vehicle cannot make an emergency response in time due to too fast speed when the road section in the fog area meets economic conditions are prevented, and the safety of the interchange of the expressway in the fog area of the vehicle is improved.
According to a second aspect, an embodiment of the present invention provides a guidance method for a highway interchange in a fog area, including the following steps: detecting visibility within a preset range of the expressway interchange, and detecting whether vehicles close to an entrance of the expressway interchange exist or not; and when the visibility is lower than a first preset threshold value and vehicles close to the entrance of the expressway interchange exist, controlling the light emitting and highlighting of a landmark line at the entrance of the expressway interchange and controlling the light emitting of guide lamps at two sides of the expressway interchange, wherein controllable lamp points are uniformly distributed on the landmark line.
The embodiment of the invention also provides a guidance method for the interchange of the highway in the fog area, which comprises the steps of detecting the preset range of the interchange of the highway, then detecting whether vehicles run into the range, and starting a guidance device to guide the vehicles which are about to enter the road section in the preset range to run safely when the visibility is lower than the preset threshold value and the vehicles run into the preset range.
According to a second aspect, in the first embodiment of the second aspect, the controlling of the landmark line lighting and highlighting at the entrance of the highway interchange comprises: and controlling the lamp points on the ground mark line to dynamically emit light according to the driving direction sequence, and repeating the light sequence until the vehicle drives away from the ground mark line.
In order to more obviously and directly guide the running vehicles, the method for guiding the interchange of the expressway in the foggy area controls the uniformly distributed lamp points arranged in the landmark lines to dynamically emit light according to the sequence of the running directions of the vehicles, can visually form the most direct guide, can more directly guide the running vehicles to run forwards, and can remind the running vehicles at any time through the dynamic light-emitting guide, so that the running vehicles can keep the alert state at any time, and further the running safety of the running vehicles in the preset range is improved; meanwhile, the dynamic luminescence is not carried out on the ground marking in the road section which is already passed by the running vehicle, so that the service time of the ground marking lamp point is reduced, and the resource is saved.
According to a second aspect, in a second embodiment of the second aspect, further comprising: detecting a vehicle running track which runs into a preset range of the highway interchange; and controlling the ground mark line in a preset range in front of the vehicle position to emit light and the guide lamp in the preset range to emit light according to the vehicle running track.
According to the second aspect, in the third embodiment of the second aspect, after detecting visibility within a preset range of the highway interchange and detecting whether there is a vehicle approaching an entrance of the highway interchange, the method further includes: and when the visibility is in different values, controlling the dynamic speed limit signs at the preset distance in front of the interchange entrance of the expressway to update the displayed limit speed.
According to the guidance system and the guidance method for the interchange of the expressway in the fog area, which are provided by the embodiment of the invention, the warning and the direction guidance are carried out on the running vehicles through the landmark lines provided with the dynamic light-emitting lamp points, so that the information can be most directly guided to the running vehicles, the running vehicles are guided to run according to the correct route, and the traffic accidents caused by the running vehicles and other running vehicles due to the wrong running route can be prevented; the guiding lamps are arranged on two sides of the highway interchange road section, so that on one hand, a running vehicle can be guided to run in the correct direction, on the other hand, warning reminding for a guardrail anti-collision area is also realized, and the running vehicle is prevented from colliding with anti-collision devices such as guardrails and the like and even rushing out of the road surface; meanwhile, a dynamic speed limit mark is arranged at a preset position at an interchange entrance of the highway, so that the driving speed of the vehicle can be controlled within a safe speed when the vehicle enters the interchange road section, the reaction time of the vehicle is reduced, and the driving risk of the vehicle on the road section is reduced; all the devices are controlled by the control device core, so that the whole system can be ensured to be effectively and accurately carried out, and the running safety of the vehicle on the road section is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic block diagram of a specific example of a guidance system for an interchange of a highway in a fog area according to embodiment 1 of the present invention;
fig. 2 is a partial schematic view of a landmark line in the guidance system for the interchange of the expressway in the fog area in embodiment 1 of the present invention;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
According to a first aspect, an embodiment of the present invention provides a guidance system for a highway interchange in a fog region, as shown in fig. 1, including: the visibility detector 10 is arranged in a preset range of the expressway interchange and is used for detecting the visibility in the preset range of the expressway interchange; a detecting device 20 disposed at a position a predetermined distance before the entrance of the highway interchange for detecting a vehicle about to pass through the entrance of the highway interchange; the guiding lights 40 are arranged on two sides of the interchange of the expressway.
The visibility detector is adopted to detect the visibility of the road section in the fog area, in order to ensure accurate monitoring of the overall environment of the fog area, the visibility detector is distributed and arranged on the whole road section in the fog area, specifically, at least one visibility detector is distributed and uniformly arranged in the front of the road section in the fog area, and the visibility detectors in different road sections are monitored in real time, so that the guiding system for the interchange of the expressway in the fog area can realize the visibility of different road sections, adopts different guiding measures, and can mutually compensate errors among the visibility detectors under the condition that the visibility detectors work together, and ensures the accuracy of detected data;
the detection device is not only arranged at the position of a preset distance in front of the entrance of the expressway interchange, but also can be arranged in a plurality of preset ranges of the whole road section of the fog area, so that the real-time monitoring of the running track of the running vehicle is realized, and the guide lamp and the landmark line are controlled to guide the running vehicle in real time, for example, when the running vehicle is predicted to enter a ramp according to the running track of the running vehicle, the light-emitting display of the guide lamp and the landmark line of the ramp road section can be controlled in advance to guide the running vehicle to enter the ramp;
in the embodiment of the present invention, controllable lamp points are uniformly distributed in the landmark line, as shown in fig. 2, a lamp point 1, a lamp point 2, a lamp point 3, and a plurality of lamp points are arranged in the landmark line, each of which is individually controllable, and the light emitting sequence and position of the lamp points can be changed according to different situations, for example, when the visibility is high, the light emitting display of the lamp points at odd positions such as the lamp points 1, 3, and 5, or the light emitting display of the lamp points at even positions such as the lamp points 2, 4, and 6, or the light emitting display of the lamp points at other positions with the same numerical rule such as the lamp points 1, 4, and 7, can be controlled. The specific lighting sequence and position can be controlled according to the situation, and is not limited to the aforementioned mode, wherein the landmark line can be a wire arrow or the like.
In addition, the embodiment of the invention is also provided with the guide lamp, which can guide the direction, play a role in warning the edge position of the guardrail and prevent a running vehicle from colliding with the guardrail or rushing out of the road surface.
According to the highway interchange guide system disclosed by the embodiment of the invention, the visibility of the whole fog region road section is detected by the visibility detector, the detection device monitors the driving track of the driving vehicle, and then the guide devices such as the guide lamp, the ground mark line and the like are controlled according to the visibility and the driving track of the vehicle, so that the uniformly distributed controllable lamp points enhance the guide effect of the ground mark line, and further the driving safety of the vehicle on the highway interchange in the fog region is improved.
Specifically, the ground marking is arranged at the entrance of the highway interchange, and the farther the ground marking is away from the entrance of the highway interchange, the larger the distance is; or the landmark lines are uniformly arranged on the road surface of the highway interchange road section.
In order to ensure that the ground mark lines can effectively play a role in guiding, the system arranges the ground mark lines provided with uniformly distributed controllable light points at the entrance of the interchange of the expressway and the whole fog area road section, and arranges the ground mark lines at the entrance of the interchange of the expressway, so that the guidance direction of a vehicle about to enter the interchange road section is realized on one hand, the warning effect is realized on the other hand, the driving vehicle is reminded of entering the fog area road section, the driving vehicle can be kept in a warning state, the front road section condition is noticed, the safety of the vehicle in the fog area road section is improved under the condition that safety accidents are caused by the carelessness of the driving vehicle is reduced; in order to guide the running vehicle according to the running conditions of different road sections, the arrangement of the landmark lines is also planned, the distance between the front and rear adjacent landmark lines is gradually increased from the entrance, the distance is changed continuously, the running vehicle can be gradually guided to adapt to the running environment of the road section in the foggy area under the guidance of the ground landmark lines with gradually changed distances, the caution form is kept, the vehicle is driven carefully, and the safety of the vehicle in the running process of the foggy area can be improved from the driving condition of the running vehicle. For example, the distance between the landmark lines within 200 meters at the highway interchange entrance is 10 meters, the distance between the landmark lines between 200 and 500 meters gradually increases to 11 meters, 12 meters and 13 meters, and the distance between the landmark lines after 500 meters is 20 meters.
Specifically, the system further comprises a control device 50, which is respectively connected with the visibility detector, the detecting device, the ground marking and the guiding lamp, and is used for controlling the ground marking and the guiding lamp according to the visibility values and the vehicle information detected by the visibility detector and the detecting device.
In order to ensure that the whole system can effectively operate, the control device is also equipped for receiving information of the visibility detector and the detection device, controlling the guide lamp and the landmark line to emit light and display according to corresponding information, guiding the running vehicle to run safely, the core control device is added, the operation of the whole system can be controlled, the guide device can be controlled in real time according to different conditions to guide the running vehicle, and the running safety of the running vehicle in a fog area road section is further improved.
Specifically, the vehicle information detected by the detection device includes a vehicle type, a license plate number, a running speed and a running track of the vehicle.
Specifically, the method further comprises the following steps: and the dynamic speed limit sign is arranged at a preset distance in front of the entrance of the expressway interchange for receiving the speed limit control instruction output by the control device according to different visibility and dynamically updating.
The guiding system for the interchange of the expressway in the fog area, provided by the embodiment of the invention, is also provided with the dynamic speed limit mark 60, so that a proper driving speed limit can be preset according to different visibility, the speed of the vehicle can be adjusted before entering the road section of the fog area, traffic accidents caused by the fact that the vehicle cannot make an emergency response in time due to too high speed when the road section of the fog area meets economic conditions are prevented, and the safety of the interchange of the expressway in the fog area of the vehicle is improved. For example, when the visibility is 300-500 m, the dynamic speed limit is controlled to be 100 km/h; when the visibility is in an interval of 100 meters to 300 meters, controlling the dynamic speed limit to be 80 kilometers per hour; when the visibility is between 50 meters and 100 meters, controlling the dynamic speed limit to be 60 kilometers per hour; when the visibility is lower than 50 meters, the dynamic speed limit is controlled to be 40 km/h.
Example 2
The embodiment provides a guiding method for interchange of a fog region highway, which comprises the following steps:
detecting visibility within a preset range of the expressway interchange, and detecting whether vehicles close to an entrance of the expressway interchange exist or not;
and when the visibility is lower than a first preset threshold value and vehicles close to the entrance of the expressway interchange exist, controlling the light emitting and highlighting of a landmark line at the entrance of the expressway interchange and controlling the light emitting of guide lamps at two sides of the expressway interchange, wherein controllable lamp points are uniformly distributed on the landmark line.
The embodiment of the invention also provides a guidance method for the interchange of the highway in the fog area, which comprises the steps of detecting the preset range of the interchange of the highway, then detecting whether vehicles run into the range, and starting a guidance device to guide the vehicles which are about to enter the road section in the preset range to run safely when the visibility is lower than the preset threshold value and the vehicles run into the preset range.
Specifically, the above-mentioned control of the landmark line light emission at the highway interchange entrance specifically includes:
and controlling the lamp points on the ground mark line to dynamically emit light according to the driving direction sequence, and repeating the light sequence until the vehicle drives away from the ground mark line.
In order to more obviously and directly guide the running vehicles, the method for guiding the interchange of the expressway in the foggy area controls the uniformly distributed lamp points arranged in the landmark lines to dynamically emit light according to the sequence of the running directions of the vehicles, can visually form the most direct guide, can more directly guide the running vehicles to run forwards, and can remind the running vehicles at any time through the dynamic light-emitting guide, so that the running vehicles can keep the alert state at any time, and further the running safety of the running vehicles in the preset range is improved; meanwhile, the dynamic luminescence is not carried out on the ground marking in the road section which is already passed by the running vehicle, so that the service time of the ground marking lamp point is reduced, and the resource is saved. For example, as shown in fig. 2, the lamps 7, 6, 5, 4, 3, 2, 1, 7, 6, 5, 4, 3, 2, 1 may be controlled to cyclically illuminate and dynamically illuminate, so that a dynamic direction-guiding landmark line can be formed.
Specifically, when the visibility is lower than a first preset threshold value and there is a vehicle close to the entrance of the highway interchange, the method controls the light emission and the brightness of the landmark line at the entrance of the highway interchange and controls the light emission of the guide lamps at two sides of the highway interchange, wherein the controllable lamp points are uniformly distributed on the landmark line, and the method further comprises the following steps:
detecting a vehicle running track which runs into a preset range of the highway interchange;
and controlling the ground mark line in a preset range in front of the vehicle position to emit light and the guide lamp in the preset range to emit light according to the vehicle running track.
In order to guide the running vehicle in real time, the embodiment of the invention firstly detects vehicle information such as a vehicle type, a license plate number, a running speed, a running track and the like of the running vehicle, then controls the light-emitting and light-emitting display of the guide lamp and the landmark line within 50 meters in front of the running vehicle according to the running track of the running vehicle, and simultaneously provides the guide of corresponding positions according to different vehicle types and license plate numbers. Of course, the embodiment of the present invention does not limit the specific distance in the front range of the traveling vehicle, and may be set according to different situations.
Specifically, after detecting visibility within a preset range of the highway interchange and detecting whether a vehicle approaching an entrance of the highway interchange exists, the method further includes:
and when the visibility is in different values, controlling the dynamic speed limit signs at the preset distance in front of the interchange entrance of the expressway to update the displayed limit speed.
The dynamic speed limit identifier according to the embodiment of the present invention has the same control manner and function as those in embodiment 1, and is not described herein again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. The utility model provides a fog zone highway interchange guide system which characterized in that includes:
the visibility detector is arranged in a preset range of the expressway interchange and used for detecting the visibility in the preset range of the expressway interchange;
the detection device is arranged at a position which is a preset distance away from the entrance of the expressway interchange and is used for detecting vehicles which are about to pass through the entrance of the expressway interchange;
the landmark lines are provided with uniformly distributed controllable lamp points;
and the guide lamps are arranged on two sides of the expressway interchange.
2. The fog region highway interchange guide system according to claim 1, wherein the landmark lines are arranged at the highway interchange entrance, and the farther the landmark lines are from the highway interchange entrance, the larger the spacing;
or the landmark lines are uniformly arranged on the road surface of the highway interchange road section.
3. The guidance system for the interchange of the fog region highway according to claim 1, further comprising a control device, connected to the visibility detector, the detecting device, the landmark line and the guidance light respectively, for controlling the landmark line and the guidance light according to the visibility values and the vehicle information detected by the visibility detector and the detecting device.
4. The fog region highway interchange guide system according to claim 3, wherein the vehicle information detected by the detection device comprises a model, a license plate number, a driving speed, and a driving track of the vehicle.
5. The fog region highway interchange guide system according to claim 3, further comprising: and the dynamic speed limit sign is arranged at a preset distance in front of the entrance of the expressway interchange for receiving the speed limit control instruction output by the control device according to different visibility and dynamically updating.
6. A guiding method for interchange of highways in fog areas is characterized by comprising the following steps:
detecting visibility within a preset range of the expressway interchange, and detecting whether vehicles close to an entrance of the expressway interchange exist or not;
and when the visibility is lower than a first preset threshold value and vehicles close to the entrance of the expressway interchange exist, controlling the light emitting and highlighting of a landmark line at the entrance of the expressway interchange and controlling the light emitting of guide lamps at two sides of the expressway interchange, wherein controllable lamp points are uniformly distributed on the landmark line.
7. The method for guiding an interchange of a highway in a foggy area according to claim 6, wherein the controlling of the landmark line lighting and highlighting at the entrance of the interchange of the highway comprises:
and controlling the lamp points on the ground mark line to dynamically emit light according to the driving direction sequence, and repeating the light sequence until the vehicle drives away from the ground mark line.
8. The fog region highway interchange guide method according to claim 6, further comprising:
detecting a vehicle running track which runs into a preset range of the highway interchange;
and controlling the ground mark line in a preset range in front of the vehicle position to emit light and the guide lamp in the preset range to emit light according to the vehicle running track.
9. The method for guiding an interchange between highways in a foggy area according to claim 6, wherein after detecting visibility within a preset range of the interchange between highways and detecting whether there is a vehicle approaching an entrance of the interchange between highways, the method further comprises:
and when the visibility is in different values, controlling the dynamic speed limit signs at the preset distance in front of the interchange entrance of the expressway to update the displayed limit speed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113724513A (en) * | 2021-11-02 | 2021-11-30 | 西南交通大学 | Vehicle driving guiding method, device and equipment in fog region and readable storage medium |
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| CN108932859A (en) * | 2018-07-18 | 2018-12-04 | 上海市政工程设计研究总院（集团）有限公司 | A kind of the expressway fog early warning and inducible system of gamut real-time monitoring |
| CN111583686A (en) * | 2020-05-19 | 2020-08-25 | 河南立达通科技工程有限公司 | Low-visibility highway guidance system and control method |
| CN214312062U (en) * | 2020-10-30 | 2021-09-28 | 长沙理工大学 | Automatic monitoring, forecasting and early warning system for expressway in foggy mountainous area |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113724513A (en) * | 2021-11-02 | 2021-11-30 | 西南交通大学 | Vehicle driving guiding method, device and equipment in fog region and readable storage medium |
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