CN111223307A - Intelligent prompting and inducing system and method for vehicles on highway - Google Patents
Intelligent prompting and inducing system and method for vehicles on highway Download PDFInfo
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- CN111223307A CN111223307A CN201911172785.XA CN201911172785A CN111223307A CN 111223307 A CN111223307 A CN 111223307A CN 201911172785 A CN201911172785 A CN 201911172785A CN 111223307 A CN111223307 A CN 111223307A
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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
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/553—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members
- E01F9/559—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members illuminated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
-
- 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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
Abstract
The invention discloses an intelligent prompt guidance system and method for vehicles on a highway, which monitors environmental information of the highway by using an environmental monitoring module and transmits the monitored environmental information to a data processing module; the data processing module is used for setting a threshold value to store and receiving the environmental information sent by the environment monitoring module, the data processing module selects a corresponding control strategy after comparing the received environmental information with the set threshold value, the control strategy is transmitted to the main control module, the luminous delineators which can emit multiple colors are arranged on the expressway at intervals and are controlled by the main control module to emit different colors for vehicle induction reminding, fusion analysis and decision making of the luminous delineators which can emit multiple colors on the expressway and multiple data of the expressway environmental information are combined, intelligent active luminous induction is carried out on a driver driving on the expressway, the driver alertness is improved, the purpose of reducing the accident rate of the expressway is achieved, and further the safety of a traffic system is improved.
Description
Technical Field
The invention belongs to the technical field of traffic information engineering and control, and particularly relates to an intelligent prompt guidance system and method for vehicles on a highway.
Background
In recent years, with the rapid increase of the number of vehicles, road congestion is caused to be serious, so that the pressure of a traffic system is increased, and the incidence rate of traffic accidents is increased. At present, the traffic management department mainly adopts a method of installing retro-reflective delineators on two sides of a highway to reduce the accident rate of a traffic system and prevent strong light of oncoming traffic from causing interference to drivers to cause accidents; and the road and bridge section on the highway often appears group fog or takes place the accident, can't play effectual warning effect to the car of back, leads to the vehicle to get into group committee and takes place the accident easily or because of the accident takes place for the second time before, thereby has increaseed the risk that the highway accident takes place, and mainly adopt the luminous floor lamp of scintillation to carry out the warning of route at present, can't realize realizing effectual warning to the vehicle because of environment or vehicle condition.
Disclosure of Invention
The invention aims to provide an intelligent prompt guidance system and method for vehicles on a highway, which aim to solve the problem of low safety of a traffic system in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent prompt guidance system for vehicles on a highway comprises an environment monitoring module, a data processing module, a main control module and a guidance module;
the environment monitoring module is used for monitoring the highway environment information and transmitting the monitored environment information to the data processing module;
the induction module comprises luminous delineators which are arranged on the expressway at intervals and can emit various colors;
the data processing module is used for setting a threshold value to store and receiving the environmental information sent by the environmental monitoring module, the data processing module selects a corresponding control strategy according to the comparison between the received environmental information and the set threshold value, the control strategy is transmitted to the main control module, and the main control module controls the inducing module to send out different colors to perform vehicle induction reminding.
Furthermore, the luminous delineator interval sets up between two lanes or the interval sets up on the way survey guardrail, can be observed by vehicle driver.
Further, the luminous delineator adopts an LED lamp source capable of emitting red light, yellow light and white light.
Furthermore, the environment monitoring module comprises a photosensitive sensor, a visibility sensor and a geomagnetic sensor, wherein the photosensitive sensor is used for monitoring illumination intensity information of the highway and transmitting the monitored brightness information to the data processing module; the visibility sensor is used for monitoring visibility information of the highway and transmitting the monitored visibility information to the data processing module; the geomagnetic sensor is used for monitoring vehicle passing information on the expressway, the geomagnetic sensor is arranged on the expressway in a segmented mode, the number of vehicles and the running time of a highway section between the two geomagnetic sensors can be obtained, and the monitored vehicle passing information is transmitted to the data processing module.
Furthermore, highway warning systems are arranged on the highway in a segmented mode, each segment is an induction area, an inlet and an outlet of each induction area are respectively provided with a geomagnetic sensor, and two geomagnetic sensors in each induction area are used for monitoring time and speed information of vehicles passing through the induction area.
The system further comprises a remote monitoring module and a video monitoring module, wherein the remote monitoring module is connected with the main control module and is used for sending a forcing signal to the main control module to realize the light-emitting strategy control of the multicolor light-emitting delineator so as to facilitate temporary maintenance of highways or other emergent road conditions; the video monitoring module is connected with the data processing module and used for acquiring the vehicle driving information of the highway, transmitting the vehicle driving information to the data processing module and judging whether a traffic accident happens on the road section.
Furthermore, the distance between the geomagnetic sensor at the inlet and the first light-emitting delineator along the driving direction is DcThe distance between adjacent luminous delineators is D1；
Wherein D iscThe calculation method of (c) is as follows:
in the formula (1), g is gravity acceleration, f1Is the resistance coefficient of the friction force between the vehicle and the ground, t is the reaction time of emergency braking, and v is the average speed of the vehicle.
Further, the minimum distance for arranging the luminous delineators is Dm，DmThe calculation method of (c) is as follows:
Dm＝Lf+Lz-Lq≤Lj, (2)
in the formula (2), LfFor braking reaction distance, LzFor braking distance, LqFor the distance traveled between adjacent vehicles, LjFor ambient visibility distance, let tfIs the braking reaction time, t is the braking time;
braking reaction distance L in formula (2)fDependent on the brake reaction time tfAnd the running speed v at the time of vehicle braking0；
Lf＝v0tf(3)
According to the relation between the acceleration and the displacement:
from the above equation, one can obtain:
further, the brake reaction time tfTake 2.5s, the front vehicle among the adjacent vehicles by v1When the vehicle is running, the following formula (2) can be used:
an intelligent prompting and inducing method for vehicles on a highway comprises the following steps:
an intelligent prompting and inducing method for vehicles on a highway comprises the following steps:
step 1), monitoring highway road condition and weather information in real time;
step 2), controlling the luminous delineators with different colors to give out light, warn and remind according to real-time monitored highway road condition and weather information by arranging a plurality of luminous delineators and geomagnetic sensors at intervals on the highway; specifically, the multicolor luminous delineator can emit red light, yellow light and white light; when the environment on the expressway is monitored to be in a normal state, the multicolor luminous delineator twinkles white light; when the visibility is first-level visibility, the multicolor luminous delineator flickers red light to warn, when the visibility is second-level visibility, the multicolor luminous delineator flickers yellow light to warn, and when the visibility is third-level visibility, the multicolor luminous delineator flickers white light to remind; when the expressway is in the dark, the multicolor luminous delineator flickers yellow light to remind, and when the expressway is in the daytime, the multicolor luminous delineator flickers white light to remind; when the vehicle on the highway is running slowly, the multicolor luminous outline mark flickers yellow light to warn, and when a traffic accident occurs on the highway, the multicolor luminous outline mark flickers red light to warn;
first degree visibility l1Fog with visibility less than 50 meters; second level visibility l2Fog with visibility less than 200 m and more than 50 m; three level visibility l3Refers to a fog of greater than 200 meters.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to an intelligent prompting and inducing system for highway vehicles, which monitors highway environment information by using an environment monitoring module and transmits the monitored environment information to a data processing module; the data processing module is used for setting a threshold value to store and receiving the environmental information sent by the environment monitoring module, the data processing module selects a corresponding control strategy after comparing the received environmental information with the set threshold value, the control strategy is transmitted to the main control module, the luminous delineators which can emit multiple colors are arranged on the expressway at intervals and are controlled by the main control module to emit different colors for vehicle induction reminding, fusion analysis and decision making of the luminous delineators which can emit multiple colors on the expressway and multiple data of the expressway environmental information are combined, intelligent active luminous induction is carried out on a driver driving on the expressway, the driver alertness is improved, the purpose of reducing the accident rate of the expressway is achieved, and further the safety of a traffic system is improved.
According to the intelligent prompting and inducing method for the vehicles on the expressway, the luminous contour marks with different colors are controlled to emit light to warn and remind a driver to warn the driver with different colors under different road conditions by judging and processing the real-time monitored road conditions of the expressway and weather information, so that the sensitivity of the driver to roads under special road conditions is improved, the driving alertness of the driver is improved, and the problem of high-speed driving safety caused by the fact that the road conditions cannot be judged is solved.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a system block connection diagram of the present invention;
FIG. 3 is a schematic diagram of an application scenario of the split-section bidirectional single-lane equipment of the present invention;
FIG. 4 is a schematic diagram of a structure of a light-emitting outline marker arrangement space according to the present invention.
In the figure, 1 is a geomagnetic sensor group, 2 is a luminous outline marker, 3 is a main control module, 11 is a geomagnetic sensor at an inlet, and 12 is a geomagnetic sensor at an outlet.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1-2, an intelligent prompting and inducing system for vehicles on a highway comprises an environment monitoring module, a data processing module, a main control module and an inducing module;
the environment monitoring module is used for monitoring the environment information of the highway and transmitting the monitored environment information to the data processing module, and comprises a photosensitive sensor, a visibility sensor and a geomagnetic sensor;
the photosensitive sensor is used for monitoring illumination intensity information of the highway and transmitting the monitored brightness information to the data processing module; the visibility sensor is used for monitoring visibility information of the highway and transmitting the monitored visibility information to the data processing module; the geomagnetic sensor is used for monitoring vehicle passing information on the highway, the geomagnetic sensor is arranged on the highway in a segmented mode, the number of vehicles and the running time of a highway section between the two geomagnetic sensors can be obtained, and the monitored vehicle passing information is transmitted to the data processing module;
the induction module comprises a luminous delineator arranged on the expressway, and the luminous delineator contains multiple colors;
the data processing module is used for setting a threshold value to store and receiving the environmental information sent by the environmental monitoring module, the data processing module selects a corresponding control strategy according to the comparison between the received environmental information and the set threshold value, the control strategy is transmitted to the main control module, and the main control module controls the induction module to conduct vehicle induction reminding.
The luminous delineators are arranged between the two traffic lanes at intervals or arranged on the road test guardrail at intervals and can be observed by a vehicle driver; the luminous delineator adopts an LED lamp source;
the highway warning system is arranged on the highway in a segmented mode, each segment is an induction area, a geomagnetic sensor is arranged at an inlet and an outlet of each induction area respectively, and the two geomagnetic sensors in each induction area are used for monitoring time and speed information of vehicles passing through the induction area;
the main control module is installed in the middle section of a vehicle driving induction area and wirelessly transmits the geomagnetic sensor and the environment monitoring module through a wireless sensing network.
The remote monitoring module is connected with the main control module and is used for sending a forcing signal to the main control module to realize the light-emitting strategy control of the multicolor light-emitting delineator so as to facilitate temporary maintenance of highways or other emergent road conditions; the video monitoring module is connected with the data processing module and used for acquiring the vehicle driving information of the highway, transmitting the vehicle driving information to the data processing module and judging whether a traffic accident happens on the road section.
The working flow of the system is as follows: the remote monitoring module can monitor the running condition of the road side active light-emitting delineators of each monitoring road section in real time and can forcibly control the running condition of the active light-emitting delineators of each road section.
An intelligent prompting and inducing method for vehicles on a highway comprises the following steps:
step 1), monitoring highway road condition and weather information in real time;
step 2), controlling the luminous delineators with different colors to give out light, warn and remind according to real-time monitored highway road condition and weather information by arranging a plurality of luminous delineators and geomagnetic sensors at intervals on the highway; specifically, the multicolor luminous delineator can emit red light, yellow light and white light; when the environment on the expressway is monitored to be in a normal state, the multicolor luminous delineator twinkles white light; when the visibility is first-level visibility, the multicolor luminous delineator flickers red light to warn, when the visibility is second-level visibility, the multicolor luminous delineator flickers yellow light to warn, and when the visibility is third-level visibility, the multicolor luminous delineator flickers white light to remind; when the expressway is in the dark, the multicolor luminous delineator flickers yellow light to remind, and when the expressway is in the daytime, the multicolor luminous delineator flickers white light to remind; when the vehicle on the highway is running slowly, the multicolor luminous outline mark flickers yellow light to warn, and when a traffic accident occurs on the highway, the multicolor luminous outline mark flickers red light to warn.
First degree visibility l1Fog with visibility less than 50 meters; second level visibility l2Fog with visibility less than 200 m and more than 50 m; three level visibility l3Refers to a fog of greater than 200 meters.
As shown in fig. 3 and 4, the schematic diagram of the application scenario of the two-way single lane equipment in the branch section is shown, where the equipment information corresponding to the numbers in the diagram is as follows: A. c, an entrance of a vehicle induction area, B, D, an exit of the vehicle induction area, 1, a geomagnetic sensor group, 2, a luminous outline marker, 3, a main control module, 11, a geomagnetic sensor at the entrance, and 12, a geomagnetic sensor at the exit.
In practical application, taking a C-D lane as an example, when a vehicle enters a vehicle driving induction area from an entrance C, the vehicle passes through a geomagnetic sensor at the entrance, a light-emitting delineator and a geomagnetic sensor at an exit in sequence along a driving direction, and a distance between the geomagnetic sensor at the entrance and a first light-emitting delineator along the driving direction is DcThe distance between adjacent luminous delineators is D1The minimum distance of the luminous delineator is Dm。
Wherein D iscThe calculation method of (c) is as follows:
in the formula (1), g is gravity acceleration, f1T is the reaction time of the emergency brake (usually 1.0s), and v is the average speed of the entering vehicle.
Wherein D ismThe calculation method of (c) is as follows:
in order to avoid the occurrence of rear-end collision accidents of vehicles, the following requirements are met:
Dm＝Lf+Lz-Lq≤Lj, (2)
in the formula (2), LfFor braking reaction distance, LzFor braking distance, LqFor the distance traveled between adjacent vehicles, LjFor ambient visibility distance, let tfThe brake reaction time, t is the brake time.
It is necessary to limit the speed of vehicles running on the highway under corresponding visibility conditions, and even mandatory measures such as blocking the high speed can be taken;
braking reaction distance L in formula (2)fDependent on the brake reaction time tfAnd the running speed v at the time of vehicle braking0；
Lf＝v0tf(3)
According to the relation between the acceleration and the displacement:
from the above equation, one can obtain:
brake reaction time tfTake 2.5s, the front vehicle by v1When the vehicle is running, the following formula (2) can be used:
in straight and curved roads D1In general, considering the transmission effect of the luminous delineator power under different environments, D is different in the linear road1The value of (D) is 32m, and in a curved road, the luminous power of the luminous delineator and the curvature radius of the curved road are integrated to obtain D under the condition of different curvature radii1The values of (A) are shown in Table 1.
TABLE 1 radius of curvature D1Value of (A)
| Radius of curvature (m) | <90 | 91-180 | 181-275 | 376-375 | >375 |
| D1(m) | 8 | 12 | 16 | 24 | 32 |
In a section of induction area, a geomagnetic sensor at an entrance monitors that vehicles enter the induction area, when a geomagnetic sensor at an exit monitors that the time taken for the last vehicle to drive away from the induction area is less than the time required by the minimum speed limit traffic in a section of the induction area, the vehicle is determined to be jammed in the section, the vehicle on the section of road runs slowly, and the multicolor luminous outline marker is controlled to flash yellow light for warning. When a traffic accident occurs on the highway, the multicolor luminous outline sign emits red light to warn, and the monitoring storage module gives an alarm to prompt that the traffic condition of the road section is processed in time.
Claims (10)
1. An intelligent prompt guidance system for vehicles on a highway is characterized by comprising an environment monitoring module, a data processing module, a main control module and a guidance module;
the environment monitoring module is used for monitoring the highway environment information and transmitting the monitored environment information to the data processing module;
the induction module comprises luminous delineators which are arranged on the expressway at intervals and can emit various colors;
the data processing module is used for setting a threshold value to store and receiving the environmental information sent by the environmental monitoring module, the data processing module selects a corresponding control strategy according to the comparison between the received environmental information and the set threshold value, the control strategy is transmitted to the main control module, and the main control module controls the inducing module to send out different colors to perform vehicle induction reminding.
2. The intelligent prompting and inducing system for the vehicles on the expressway according to claim 1, wherein the luminous delineator is arranged between two traffic lanes or on the road measurement guardrail at intervals and can be observed by a vehicle driver.
3. The intelligent prompting and inducing system for highway vehicles according to claim 1 or 2, wherein the luminous delineator adopts an LED lamp source capable of emitting red light, yellow light and white light.
4. The intelligent prompting and inducing system for the vehicles on the expressway as claimed in claim 3, wherein the environment monitoring module comprises a photosensitive sensor, a visibility sensor and a geomagnetic sensor, the photosensitive sensor is used for monitoring illumination intensity information of the expressway and transmitting the monitored brightness information to the data processing module; the visibility sensor is used for monitoring visibility information of the highway and transmitting the monitored visibility information to the data processing module; the geomagnetic sensor is used for monitoring vehicle passing information on the expressway, the geomagnetic sensor is arranged on the expressway in a segmented mode, the number of vehicles and the running time of a highway section between the two geomagnetic sensors can be obtained, and the monitored vehicle passing information is transmitted to the data processing module.
5. The intelligent guidance system for vehicle on highway according to claim 4 wherein the highway warning system is installed on the highway in sections, each section is a guidance area, a geomagnetic sensor is installed at the entrance and exit of one guidance area, and two geomagnetic sensors in one guidance area are used to monitor the time and speed information of the vehicle passing through the guidance area.
6. The intelligent prompting and inducing system for the vehicles on the expressway as claimed in claim 4, further comprising a remote monitoring module and a video monitoring module, wherein the remote monitoring module is connected with the main control module and is used for sending a forcing signal to the main control module to realize the light-emitting strategy control of the multicolor light-emitting delineator, so that temporary maintenance of the expressway or other sudden road conditions can be facilitated; the video monitoring module is connected with the data processing module and used for acquiring the vehicle driving information of the highway, transmitting the vehicle driving information to the data processing module and judging whether a traffic accident happens on the road section.
7. The intelligent guidance system for prompting vehicles on highway according to claim 5, wherein the distance between the geomagnetic sensor at the entrance and the first light-emitting delineator along the driving direction is DcThe distance between adjacent luminous delineators is D1；
Wherein D iscThe calculation method of (c) is as follows:
in the formula (1), g is gravity acceleration, f1Is the resistance coefficient of the friction force between the vehicle and the ground, t is the reaction time of emergency braking, and v is the average speed of the vehicle.
8. The intelligent guidance system for expressway vehicle recited in claim 7, wherein the minimum distance D is defined for the luminous delineatorm，DmThe calculation method of (c) is as follows:
Dm＝Lf+Lz-Lq≤Lj, (2)
in the formula (2), LfFor braking reaction distance, LzFor braking distance, LqFor the distance traveled between adjacent vehicles, LjFor ambient visibility distance, let tfIs the braking reaction time, t is the braking time;
braking reaction distance L in formula (2)fDependent on the brake reaction time tfAnd the running speed v at the time of vehicle braking0；
Lf＝v0tf(3)
According to the relation between the acceleration and the displacement:
from the above equation, one can obtain:
9. the intelligent prompting and inducing system for highway vehicles according to claim 8, wherein the braking reaction time t isfTake 2.5s, the front vehicle among the adjacent vehicles by v1When the vehicle is running, the following formula (2) can be used:
10. an expressway vehicle prompt induction method based on claim 6, comprising the following steps:
an intelligent prompting and inducing method for vehicles on a highway comprises the following steps:
step 1), monitoring highway road condition and weather information in real time;
step 2), controlling the luminous delineators with different colors to give out light, warn and remind according to real-time monitored highway road condition and weather information by arranging a plurality of luminous delineators and geomagnetic sensors at intervals on the highway; specifically, the multicolor luminous delineator can emit red light, yellow light and white light; when the environment on the expressway is monitored to be in a normal state, the multicolor luminous delineator twinkles white light; when the visibility is first-level visibility, the multicolor luminous delineator flickers red light to warn, when the visibility is second-level visibility, the multicolor luminous delineator flickers yellow light to warn, and when the visibility is third-level visibility, the multicolor luminous delineator flickers white light to remind; when the expressway is in the dark, the multicolor luminous delineator flickers yellow light to remind, and when the expressway is in the daytime, the multicolor luminous delineator flickers white light to remind; when the vehicle on the highway is running slowly, the multicolor luminous outline mark flickers yellow light to warn, and when a traffic accident occurs on the highway, the multicolor luminous outline mark flickers red light to warn;
first degree visibility l1Fog with visibility less than 50 meters; second level visibility l2Fog with visibility less than 200 m and more than 50 m; three level visibility l3Refers to a fog of greater than 200 meters.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112669618A (en) * | 2020-12-28 | 2021-04-16 | 上海电科智能系统股份有限公司 | Multifunctional dynamically controllable active luminous sight line induction system for expressway |
| CN112863201A (en) * | 2021-01-07 | 2021-05-28 | 武汉理工大学 | Guiding method based on expressway agglomerate fog area multi-stage early warning system |
| CN113611145A (en) * | 2021-07-02 | 2021-11-05 | 江苏万物通物联网科技有限公司 | Alarm prevention and control system and method based on intelligent delineator |
| CN115083183A (en) * | 2022-06-11 | 2022-09-20 | 杨立柱 | Intelligent induction lamp system for expressway |
| CN115223375A (en) * | 2022-07-07 | 2022-10-21 | 浙江柯瑞普科技有限公司 | Road visibility monitoring and warning system and method and smoke monitoring and prompting equipment |
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