CN108734953A - A kind of lower early warning induction system of urban road intersection countdown effect - Google Patents
A kind of lower early warning induction system of urban road intersection countdown effect Download PDFInfo
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- CN108734953A CN108734953A CN201810519627.6A CN201810519627A CN108734953A CN 108734953 A CN108734953 A CN 108734953A CN 201810519627 A CN201810519627 A CN 201810519627A CN 108734953 A CN108734953 A CN 108734953A
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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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
-
- 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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
-
- 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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/012—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from other sources than vehicle or roadside beacons, e.g. mobile networks
-
- 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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
Abstract
A kind of lower early warning induction system of urban road intersection countdown effect, utilize the current green light countdown moment t of central controller real-time reception, the range line value between coordinate and vehicle at default stop line, the displacement of different location vehicle distances stop line, the spacing of adjacent two motor vehicles, travel speed, license plate number under countdown any time are uploaded in the data-analyzing machine in VMS plates through central controller, the data information in data-analyzing machine, central controller is at any time, dynamic substitutes in real time for the variation progress of vehicle operation.Enemy's vehicle and rear car analyze and determine after data-analyzing machine identifies data, induction warning is carried out to vehicle using induction caution system according to analytical judgment result, analysis presentation of information is driven on VMS plates, when spacing is less than range line, vehicle-mounted alarm sends out phonetic warning.The present invention drives selection hesitation for reducing, and reduces traffic conflict, reduces rear-end collision, ensures that driving safety has great importance.
Description
Technical field
The present invention relates to a kind of lower early warning of the urban road intersection countdown effect being made of VMS plates and vehicle-mounted alarm
Inducible system is related to traffic safety alarm technical field.
Background technology
Intersection at Grade of Urban Road is the throat of road traffic, be urban traffic accident multiplely, on the one hand, it is different
The motor vehicle in direction is kept straight on and is turned in intersection, and the conflict point of formation is very big to the security implication of driving, another party
The otherness in face, driver's decision easily causes traffic accident.To ensure traffic safety, specification traffic order, mostly in intersection
Place is arranged traffic lights and shows passage and the stopping guiding traffic flow by light color.However green light countdown signal device
Use also bring many problems, especially countdown latter stage is even more the Frequent Accidents moment, mainly causes problems with:1, motor-driven
Vehicle accelerated to rob lamp in green light countdown latter stage, started to walk in advance in red light countdown latter stage, the motor vehicle of different directions is also easy to produce punching
It is prominent;2, when driving with vehicle, automobile driver can take different Driving Decision-makings, as think can not will by intersection for front truck
If selection is slowed down and rear car thinks to select to accelerate with safety intersection, easily cause rear-end collision.To ensure traffic peace
Entirely, specification traffic order, we need to induce or warn to the motor vehicle of different location under green light countdown any time, carry
For driving information, allow motor vehicle safety stop line is stopped or crossed before stop line and sails out of intersection.
Invention content
The purpose of the present invention is being directed to above-mentioned traffic safety problem, a kind of urban road intersection countdown is provided
The lower early warning induction system of effect, by the way that the motor vehicle under any time at stop line different location is guided and warned
Show, driver can be reduced and select hesitation, reduce rear-end collision and traffic conflict, ensure driving safety.
The purpose of the present invention is what is be achieved through the following technical solutions:It is pre- under a kind of urban road intersection countdown effect
Alert inducible system, characterized in that include the following steps:
(1) column is established at the right side roadside flushed with intersection parking line, VMS plates are placed in column top, vehicle-mounted
GPS, vehicle-mounted alarm are placed in vehicle interior, contain central controller, data-analyzing machine in VMS plates, intersection periphery is covered with
GPRS wireless-transmission networks, the current green light countdown moment t of central controller real-time reception preset intersect in the central controller
Coordinate (x at mouth stop lineo,yo) range line value between vehicle;
(2) it is inscribed when green light countdown is a certain, it, should to obtain vehicle data using the vehicle GPS installed in each car
Data include the current position coordinates (x of vehiclei,yo), travel speed vi, license plate number pi, data through GPRS wireless network transmissions extremely
In the central controller of VMS plates;
(3) central controller counts the data of acquisition apart from the sequence of stop line from the near to the distant according to each motor vehicle respectively
Calculate displacement of any one motor vehicle apart from stop line, the spacing between arbitrary two adjacent motor vehicle, calculation formula is respectively such as
Under:
si(i+1)=si+1-si
In formula:I=1,2 ..., n, indicate the 1st vehicle, the 2nd vehicle ... n-th vehicle;
(4) data after central controller is handled by the speed of each car, the displacement away from stop line, license plate number, adjacent two
The spacing of vehicle, countdown moment, range line value upload in the data-analyzing machine in VMS plates, during the data information of the above acquisition is
Entreat the data in controller, data-analyzing machine that can carry out real-time synchronization replacement with the variation of time;
(5) judge the driving behavior of head vehicle:
Signal recognition device in data-analyzing machine identifies each successively according to apart from the sequence of stop line from the near to the distant
Motor vehicle, first identification lift one's head vehicle and correct vehicle is judged, analyze selection by stop line or stop before stop line
Only, it is assumed that the data of head vehicle are s1,v1, t is the current countdown moment;
As follows, calculating the distance of P Passable on the basis of present speed, distance, time is:
S=v1t
If 1. s >=s1, then it represents that head vehicle can reach stop line on the basis of present speed;
If 2. s < s1, then it represents that head vehicle cannot reach stop line on the basis of present speed, then count as follows
It calculates under current distance, speed, time, selection accelerates that the suggestion speed v of stop line can be reachedIt builds:
vIt builds=v1+at
If I, vIt builds≤vLimit, then it represents that suggest that speed can reach stop line with this;
If II, vIt builds> vLimit, then it represents that motor vehicle can not reach stop line on the basis of no more than speed limit, and should select to subtract
Speed stops before stop line;
(6) data-analyzing machine analyzes rear car according to the analytical judgment result of head vehicle:
1. if head vehicle can not pass through, then it represents that inscribed in current countdown, apart from stop line any position behind head vehicle
Ramp to stop can not should be selected with the motor vehicle that arbitrary speed travels by stop line;
2. when if head vehicle allows by but not yet passes stop line, the traveling of the 2nd vehicle can be restricted by front truck thereafter,
It collides with front truck to avoid rear vehicle speed excessive, rear car should select to sail and automatically adjusted with vehicle speed to keep pacifying with speeding on
Full spacing;
(7) induction warning is carried out in inducing caution system according to analysis result
When VMS plates show information, the first row shows that the driving information of current state following vehicle, the second row show current state
The driving information of lower rear car;
1. when judge lift one's head vehicle can not by when, VMS plate the first rows are shown:" ramp to stop ", the second row are shown:" slow down
Parking ";
2. when the vehicle that judges to lift one's head allows by but when not yet passing stop line, VMS plate the first rows are shown:" license plate number is
Xxx, permission are passed through with present speed ", the second row shows " following, keep with vehicle range line ", if rear car is adjacent two with during vehicle
When following distance is less than range line, the analysis result of data-analyzing machine reaches vehicle-mounted alarm through GPRS wireless networks, carries out voice police
Show " paying attention to vehicle spacing ", driver is prompted to notice that spacing automatically adjusts speed;
(8) when head vehicle has passed through stop line, when the signal recognition device in data-analyzing machine can again identify that out current
The head vehicle and rear car inscribed divide according to above-mentioned identical algorithmic procedure and discriminatory analysis method working as front vehicle and rear car
Analysis, and correct vehicle and rear car carry out induction warning in the same manner, according to said method, can analyze and determine the green light countdown phase
Between all vehicles.
Present invention utilizes VMS plates and vehicle-mounted alarm to draw to the motor vehicle of different location under countdown any time
Warning is led, the early warning induction system formed by using VMS plates and vehicle-mounted alarm is to the machine under green light countdown any time
Motor-car driver, which provides, drives selection information, to ensure driving safety.
The present invention can obtain different positions under countdown any time in real time by vehicle GPS, GPRS wireless-transmission networks
It sets the coordinate of vehicle, travel speed, license plate number and uploads in the central controller of VMS plates, central controller utilizes default public affairs
Formula data are calculated the displacement of different location vehicle distances stop line, adjacent two motor vehicles spacing, then will treated
Data upload in the data-analyzing machine of VMS plates, data information at any time, vehicle operation variation carry out real-time synchronization dynamic more
It replaces.Signal recognition device in data-analyzing machine identifies lift one's head vehicle and rear car successively by away from the sequence of stop line from the near to the distant, first
First enemy's vehicle is analyzed and determined, is analyzed and determined to the driving of rear car further according to the driving information of head vehicle, finally with induction
Caution system carries out induction warning to vehicle, after head vehicle is by stop line, according still further to above-mentioned identical algorithmic procedure and judgement
Analysis method is analyzed and determined and is induced warning to working as front vehicle and rear car, until during having analyzed and determined green light countdown
All vehicles.
The present invention has the advantages that compared with prior art:
Present invention can ensure that under countdown any time, VMS plates can show corresponding head vehicle and the driving letter of rear car
Breath, and during with speeding with vehicle-mounted alarm remind rear car pay attention to spacing, under any time apart from stop line difference position
The motor vehicle at the place of setting is guided and is warned, and driver drives according to the driving information of display, is reduced it and is driven selection still
Henan property reduces traffic conflict, reduces rear-end collision, ensure that drive safety.
Description of the drawings
Fig. 1 is plan view of the present invention;
Fig. 2 is VMS plates display interface figure of the present invention;
Fig. 3 is position view of the early warning induction system of the present invention at road parking line.
Specific implementation mode
A kind of lower early warning induction system of urban road intersection countdown effect, includes the following steps:
(1) hollow column is established at the right side roadside flushed with stop line, VMS plates are placed in column top, vehicle-mounted
GPS, vehicle-mounted alarm are placed in vehicle interior, contain central controller, data-analyzing machine in VMS plates, intersection periphery is covered with
GPRS wireless-transmission networks, the current green light countdown moment t of central controller real-time reception preset intersect in the central controller
Coordinate (x at mouth stop lineo,yo) range line value between vehicle.The central controller is really a kind of integrated system of data processing
System, the main function of playing real-time processing data, can be by data input cell, RTDB real-time data bases processing system (such as:It is existing
The PHD real-time dataBase systems of HoneyWell companies), data outputting unit composition, the major function of RTDB real-time data bases is
The real-time processing that data are carried out according to embedded algorithm routine calculates.The data-analyzing machine is a kind of data based on algorithm routine
Integrated system is analyzed, mainly judges that vehicle is traveling or parking according to the result of following algorithm routines.
(2) it is inscribed when countdown is a certain, using the vehicle GPS installed in each car, to obtain the current position of vehicle
Coordinate (xi,yo), travel speed vi, license plate number piEtc. data, data through GPRS wireless network transmissions to VMS plates center control
In device.
(3) central controller counts the data of acquisition apart from the sequence of stop line from the near to the distant according to each motor vehicle respectively
Calculate displacement of any one motor vehicle apart from stop line, spacing between arbitrary two adjacent motor vehicle (as shown in figure 3, by
Near the stop line entrance driveway of shortcut road, separated using solid line between track of turning left, Through Lane, track of turning right, central controller
It is responsible for the data of each motor vehicle within the scope of the above-mentioned solid line of acquisition, and calculates separately corresponding displacement, spacing), calculation formula is such as
Under:
si(1+1)=s1+1-si
Note:I=1,2 ..., indicate the 1st vehicle, the 2nd vehicle ....
(4) data after central controller is handled by the speed of each car, the displacement away from stop line, license plate number, adjacent two
The spacing of vehicle, countdown moment, range line value upload in the data-analyzing machine in VMS plates.The data information obtained above i.e. in
Entreat the data in controller, data-analyzing machine that can carry out real-time synchronization replacement with the variation of time.
(5) judge the driving behavior of head vehicle:
Signal recognition device in data-analyzing machine identifies each successively according to apart from the sequence of stop line from the near to the distant
Motor vehicle, first identification lift one's head vehicle and correct vehicle is judged that (signal recognition device is a kind of for judging that real-time status is got off
Whether be a vehicle algorithm routine, algorithm principle is as follows:If the distance of certain spacing stop line is l, compare l and other vehicles
The magnitude relationship away from 'STOP' line ahead value, if l is minimum and l to be more than 0, l be head vehicle, by this algorithm progress real-time judge, according to
The secondary head vehicle analyzed under any time state), selection is analyzed by stop line or is stopped before stop line, it is assumed that head
The data of vehicle are s1,v1, t is the current countdown moment;
As follows, calculating the distance of P Passable on the basis of present speed, distance, time is:
S=v1t
If 1. s >=s1, then it represents that head vehicle can reach stop line on the basis of present speed;
If 2. s < s1, then it represents that head vehicle cannot reach stop line on the basis of present speed, then count as follows
It calculates under current distance, speed, time, selection accelerates that the suggestion speed v of stop line can be reachedIt builds:
vIt builds=v1+at
If I, vIt builds≤vLimit, then it represents that suggest that speed can reach stop line, v with thisLimitAs defined in road where indicating vehicle
Speed limit;
If II, vIt builds> vLimit, then it represents that motor vehicle can not reach stop line on the basis of no more than speed limit, and should select to subtract
Speed stops before stop line;
(6) data-analyzing machine analyzes rear car according to the analytical judgment result of head vehicle:
1. if head vehicle can not pass through, then it represents that inscribed in current countdown, apart from stop line any position behind head vehicle
Ramp to stop can not should be selected with the motor vehicle that arbitrary speed travels by stop line;
2. when if head vehicle allows by but not yet passes stop line, the traveling of the 2nd vehicle can be restricted by front truck thereafter,
It does not avoid rear vehicle speed excessive and collides with front truck, rear car should select to sail and automatically adjusted with vehicle speed to keep pacifying with speeding on
Full spacing;
(7) induction warning is carried out in inducing caution system according to analysis result
When VMS plates show information, the first row shows that the driving information of current state following vehicle, the second row show current state
The driving information of lower rear car;
1. when judge lift one's head vehicle can not by when, VMS plate the first rows are shown:" ramp to stop ", the second row are shown:" slow down
Parking "
2. when the vehicle that judges to lift one's head allows by but when not yet passing stop line, VMS plate the first rows are shown:" license plate number is
Xxx, permission are passed through with present speed " or " license plate number xxx, permission are passed through with present speed ", the second row, which is shown, " to be followed, protects
Hold with vehicle range line ", if rear car with during vehicle adjacent two following distance be less than range line when, the analysis result of data-analyzing machine is through GPRS
Wireless network reaches vehicle-mounted alarm, carries out phonetic warning " paying attention to vehicle spacing ", driver is prompted to notice that spacing automatically adjusts
Speed;
(8) when head vehicle has passed through stop line, when the signal recognition device in data-analyzing machine can again identify that out current
The head vehicle and rear car inscribed divide according to above-mentioned identical algorithmic procedure and discriminatory analysis method working as front vehicle and rear car
Analysis, and correct vehicle and rear car carry out induction warning in the same manner, according to said method, can analyze and determine the green light countdown phase
Between all vehicles.
The present invention establishes hollow column at the right side roadside flushed with stop line, and VMS plates are placed in column top, vehicle-mounted
GPS, vehicle-mounted alarm are placed in vehicle interior, contain central controller, data-analyzing machine in VMS plates, intersection periphery is covered with
GPRS wireless-transmission networks, the current green light countdown moment t of central controller real-time reception preset intersect in the central controller
The range line value between coordinate and vehicle at mouth stop line passes through the center control of vehicle GPS, GPRS wireless-transmission networks, VMS plates
Device processed can obtain and handle data in real time, and different location vehicle distances under countdown any time are stopped through central controller
The displacement of line, the spacing of adjacent two motor vehicles, travel speed, license plate number upload in the data-analyzing machine in VMS plates, data point
Data information in parser, central controller is at any time, the variation of vehicle operation carries out dynamic in real time and substitute.Data-analyzing machine pair
Correct vehicle and rear car are analyzed and determined after data identification, are carried out to vehicle using induction caution system according to analytical judgment result
Induction warning drives analysis presentation of information on VMS plates, and when spacing is less than range line, vehicle-mounted alarm sends out phonetic warning.When
After head vehicle is by stop line, data-analyzing machine again identifies that out current head vehicle and rear car, and sentences according to above-mentioned identical analysis
Disconnected method and induction alarming method for power are induced.The present invention drives selection hesitation for reducing, and reduces traffic conflict, and reduction is knocked into the back
Accident ensures that driving safety has great importance.
Claims (1)
1. a kind of lower early warning induction system of urban road intersection countdown effect, characterized in that include the following steps:
(1) column to be established at the right side roadside flushed with intersection parking line, VMS plates are placed in column top, vehicle GPS,
Vehicle-mounted alarm is placed in vehicle interior, containing central controller, data-analyzing machine in VMS plates, intersection periphery be covered with GPRS without
Transmission network network, the current green light countdown moment t of central controller real-time reception preset intersection parking in the central controller
Coordinate (x at lineo, yo) range line value between vehicle;
(2) it is inscribed when green light countdown is a certain, utilizes the vehicle GPS installed in each car, to obtain vehicle data, the data
Including the current position coordinates (x of vehiclei, yo), travel speed vi, license plate number pi, data are through GPRS wireless network transmissions to VMS
In the central controller of plate;
(3) central controller calculates separately out the data of acquisition apart from the sequence of stop line from the near to the distant according to each motor vehicle
Displacement of any one motor vehicle apart from stop line, the spacing between arbitrary two adjacent motor vehicle, calculation formula difference are as follows:
si(i+1)=si+1-si
In formula:I=1,2 ..., n, indicate the 1st vehicle, the 2nd vehicle ... n-th vehicle;
(4) data after central controller is handled by the speed of each car, the displacement away from stop line, license plate number, adjacent two vehicle
Spacing, countdown moment, range line value upload in the data-analyzing machine in VMS plates, and the data information of the above acquisition is center control
Data in device processed, data-analyzing machine can carry out real-time synchronization replacement with the variation of time;
(5) judge the driving behavior of head vehicle:
Signal recognition device in data-analyzing machine according to apart from the sequence of stop line from the near to the distant identify successively each it is motor-driven
Vehicle, first identification lift one's head vehicle and correct vehicle is judged, analyze selection by stop line or stop before stop line, false
The data for determining head vehicle are s1, v1, t is the current countdown moment;
As follows, calculating the distance of P Passable on the basis of present speed, distance, time is:
S=v1t
If 1. s >=s1, then it represents that head vehicle can reach stop line on the basis of present speed;
If 2. s < s1, then it represents that head vehicle cannot reach stop line on the basis of present speed, then calculate as follows
Current distance, speed under the time, select the suggestion speed v for accelerating that stop line can be reachedIt builds:
vIt builds=v1+at
If I. vIt builds≤vLimit, then it represents that suggest that speed can reach stop line with this;
If II. vIt builds> vLimit, then it represents that motor vehicle can not reach stop line on the basis of no more than speed limit, and should select to slow down
Stop before stop line;
(6) data-analyzing machine analyzes rear car according to the analytical judgment result of head vehicle:
1. if head vehicle can not pass through, then it represents that inscribed in current countdown, apart from stop line any position to appoint behind head vehicle
The motor vehicle of meaning speed traveling can not should select ramp to stop by stop line;
2. when if head vehicle allows by but not yet passes stop line, the traveling of the 2nd vehicle can be restricted by front truck thereafter, to keep away
It is excessive and collide with front truck to exempt from rear vehicle speed, rear car should select to sail and automatically adjusted with vehicle speed to keep accident-free vehicle with speeding on
Away from;
(7) induction warning is carried out in inducing caution system according to analysis result
When VMS plates show information, after the first row shows that the driving information of current state following vehicle, the second row are shown under current state
The driving information of vehicle;
1. when judge lift one's head vehicle can not by when, VMS plate the first rows are shown:" ramp to stop ", the second row are shown:" deceleration stops
Vehicle ";
2. when the vehicle that judges to lift one's head allows by but when not yet passing stop line, VMS plate the first rows are shown:" license plate number xxx permits
Perhaps passed through with present speed ", the second row shows " follow, keep with vehicle range line ", if rear car with during vehicle adjacent two following distance
When less than range line, the analysis result of data-analyzing machine reaches vehicle-mounted alarm through GPRS wireless networks, carries out phonetic warning and " pays attention to
With vehicle spacing ", prompt driver to notice that spacing automatically adjusts speed;
(8) when head vehicle has passed through stop line, the signal recognition device in data-analyzing machine can again identify that out under current time
Head vehicle and rear car, analyzed according to above-mentioned identical algorithmic procedure and discriminatory analysis method working as front vehicle and rear car, and
And correct vehicle and rear car carry out induction warning in the same manner, according to said method, during can analyzing and determining green light countdown
All vehicles.
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CN109872547A (en) * | 2019-04-01 | 2019-06-11 | 武汉理工大学 | A kind of parking control system for vehicle closing on intersection and method |
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CN206194129U (en) * | 2016-07-22 | 2017-05-24 | 江苏大学 | Device based on induced tactful guide car of vehicle velocity does not stop and to pass through crossing |
CN206546634U (en) * | 2016-11-28 | 2017-10-10 | 东莞职业技术学院 | Urban Traffic Flow Guidance Systems based on Internet of Things |
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