CN105869420A - Road optical illusion forced deceleration system and method for vehicle access joint - Google Patents
Road optical illusion forced deceleration system and method for vehicle access joint Download PDFInfo
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- CN105869420A CN105869420A CN201610324015.2A CN201610324015A CN105869420A CN 105869420 A CN105869420 A CN 105869420A CN 201610324015 A CN201610324015 A CN 201610324015A CN 105869420 A CN105869420 A CN 105869420A
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- vehicle
- speed
- road
- deceleration
- visual illusion
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Classifications
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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
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/14—Adaptive cruise control
- B60W30/16—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
- B60W30/162—Speed limiting therefor
-
- 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
Abstract
The invention relates to a road optical illusion forced deceleration system and method for vehicle access joint. The system comprises optical illusion deceleration marking lines, a road side unit, an on board unit and a vehicle speed control unit, wherein the optical illusion deceleration marking lines are arranged on a road of a deceleration section and coated with light-reflection paint; the road side unit sends the maximum speed per hour and the shortest travelling distance to a travelling vehicle; the on board unit receives the maximum speed per hour and the shortest travelling distance sent by the road side unit; the vehicle speed control unit receives the transferred maximum speed per hour and the shortest travelling distance and controls the travelling speed of the vehicle so that the travelling speed of the vehicle can be lowered to the maximum speed per hour or below, and safe distance is kept with surrounding vehicles. Compared with the prior art, by means of the road optical illusion forced deceleration system and method, the psychological alarm effect of a deceleration strip is achieved; in addition, through information interaction between the vehicle and the road, the function of physical forced deceleration is achieved; forced deceleration of different degrees can be conducted on different vehicles and different travelling states of the vehicles, and the damage of a traditional deceleration strip to the travelling vehicle is avoided.
Description
Technical field
The present invention relates to traffic safety technology field, especially relate to a kind of united road visual illusion of bus or train route and force
Deceleration system and method.
Background technology
At highway road junction, industrial and mining establishment, school's entrance etc. need section that vehicle deceleration goes slowly and easily cause friendship
The section of interpreter's event, needs to arrange traffic safety facilities and forces vehicle deceleration, improve traffic safety, reduce
The generation of vehicle accident.
Applying more forced deceleration facility on road at present is deceleration strip, is primarily characterized in that by changing road
The height on road section, forces vehicle deceleration according to the heart, physiology principle.But the deceleration strip of this projection, it is impossible to distinguish
Treat motor vehicles and bicycle, also cannot be distinguished by treating over-speed vehicles and non-over-speed vehicles, the car to any process
All produce decelerating effect, and the mechanical vibration of fierceness can be produced when vehicle passes through with higher speed, the most easily
Vehicle itself is caused damage, reduces the comfortableness and safety driven.
Speed reduction marking according to visual illusion principle design, although reached to a certain extent to promote psychologically to drive
The function that member is slowed down, but completely lost forced deceleration function physically.Night vision poor effect or driver master
When be unwilling to slowing down on Guaning, it is impossible to reach the effect of forced deceleration.
The solving road forced deceleration problem that develops into of vehicle-carrying communication technology provides new thinking and method at present.
Vehicle-carrying communication technology mainly employing wireless communication technology realizes the communication between car car, between bus or train route, it is achieved traffic
Between participant, the vehicles and environment thereof, the most mutual and combination, improves safety and the efficiency of traffic system.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of bus or train route united
Road visual illusion forced deceleration system and method, not only achieves the psychological alarming effect of existing deceleration strip, but also
Physical constraints deceleration is achieved alternately, it is possible to for different vehicle and vehicle by the information between vehicle and road
Different travel conditions carry out forced deceleration in various degree, it is to avoid the infringement to driving vehicle of traditional deceleration strip.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of bus or train route united road visual illusion forced deceleration system includes:
Visual illusion speed reduction marking, is located on the road of deceleration area and scribbles reflecting coating, is formed and promotes driver master
The dynamic visual illusion slowed down；
Trackside signal transmitting unit, is located at the trackside of deceleration area, and is positioned at visual illusion deceleration along road travel direction
The front of graticule original position, sends the F-Zero of current road segment to driving vehicle and sails out of this deceleration area
The shortest operating range, F-Zero and the shortest operating range automatically update according to traffic information；
Board units, is located on vehicle, receive trackside signal transmitting unit send F-Zero and the shortest traveling away from
From；
Car speed control unit, is located on vehicle, receive board units forward F-Zero and the shortest traveling away from
From, and control Vehicle Speed according to F-Zero, the shortest operating range and vehicle traveling information so that vehicle
Travel speed decelerates to below F-Zero, and keeps safe distance with surrounding vehicles.
Described visual illusion speed reduction marking uses three-dimensional visual illusion speed reduction marking, and arranges at the trackside of deceleration area and regard
Illusion speed reduction marking coordinates the illuminator increasing illumination.
Described visual illusion speed reduction marking is two, and two visual illusion speed reduction markings set with center line of road for axis of symmetry symmetry
Putting, every visual illusion speed reduction marking all includes the multiple visual illusion patterns arranged along road travel direction, each regarding mistake
Feel that pattern is divided into two blue blocks, a yellow block and a red block, two symmetrical layings of blue block,
Red block and yellow block are laid before and after road travel direction.
Described car speed control unit includes speed controller, and connects the speed sensing of speed controller respectively
Device, spacing sensor and electronic throttle, vehicle speed sensor detects the current travel speed of vehicle and vehicle in real time
Operating range, the spacing of spacing sensor Real-time Collection vehicle and front and back car, speed controller is current according to vehicle
The aperture of electronic throttle is controlled by travel speed, vehicle operating range and vehicle with the spacing of front and back's car, electricity
Sub-air throttle regulates Vehicle Speed in real time by the air inflow controlling vehicle transmitter.
The original position of described visual illusion speed reduction marking and spacing S of trackside signal transmitting unitRSUBelow Man Zuing
Formula:
In formula, VmaxFor the F-Zero of current road segment, TrSee visual illusion speed reduction marking for driver and actively make vehicle
The response time slowed down, asFor the acceleration of vehicle deceleration, SeThe signal of the trackside signal transmitting unit for setting
Coverage.
A kind of based on said system comprise the following steps based on bus or train route united road visual illusion forced deceleration method:
S1: trackside signal transmitting unit arranges the F-Zero in front deceleration section and sails out of this deceleration area
The shortest operating range, car speed control unit arranges the vehicle minimum safe spacing under different speed；
S2: when vehicle travels to this deceleration area, board units receives what trackside signal transmitting unit sent
After F-Zero and the shortest operating range information, activate car speed control unit, and to car speed control unit
Send the information received；
S3: car speed control unit collection activate after vehicle operating range, and real-time judge vehicle travel away from
From whether more than the shortest operating range, if so, perform step S5, if it is not, perform step S4；
S4: car speed control unit starts this monitoring travelling vehicle and control so that vehicle travels speed
Degree decelerates to below F-Zero, and keeps safe distance, jump procedure S3 with surrounding vehicles；
S5: car speed control unit terminates this monitoring travelling vehicle and control；
The monitoring that in step S4, vehicle is travelled by car speed control unit includes with control:
1) vehicle traveling information monitoring: car speed control unit Real-time Collection vehicle traveling information, described vehicle
Driving information includes the spacing of current travel speed and vehicle and car front and back；
2) speed control mode switching controls: car speed control unit by the current travel speed of contrast with
High speed per hour so that the control of Vehicle Speed is keeping driver's control mode and cutting off in driver's control mode
Switching, in cutting off driver's control mode, car speed control unit substitutes driver and enters Vehicle Speed
Row controls, and meanwhile, when vehicle travels under cutting off driver's control mode, car speed control unit is by contrast
The spacing of vehicle and front and back car and vehicle minimum safe spacing, return by cut-out driver's control mode switching to holding and drive
Member's control mode.
In described speed control mode switching, if current travel speed is less than or equal to F-Zero, then vehicle is being protected
Hold and travel under driver's control mode, if current travel speed is more than F-Zero, then car speed control unit
Cut off driver's control signal to speed, and control Vehicle Speed and decelerate to below F-Zero.
In described speed control mode switching, when vehicle travels under cutting off driver's control mode, when vehicle is with front
The spacing of rear car is less than the vehicle minimum safe spacing under current vehicle speed, and the spacing of vehicle and car front and back is setting
When constantly reducing in safety time, car speed control unit sends alarm signal to driver, and recovers driver
Control signal to speed.
The safety time T of described settingsMeet below equation:
In formula, SsFor vehicle minimum safe spacing, VmaxF-Zero for current road segment.
The F-Zero that described front deceleration section specifies and sail out of the numerical value of the shortest operating range of this deceleration area
Adjust in real time according to present road traffic information respectively, described road conditions information include road surface visibility degree,
Vehicle accident occurrence frequency and congested in traffic degree.
Compared with prior art, the invention have the advantages that
1. utilize visual illusion speed reduction marking to realize psychology alarming effect, remind driver on the deceleration road through regulation
Actively slow down during section, contribute to driver and form good driving habits.Its construction is simple, will not destroy construction road
Face, long term maintenance cost is relatively low.The application of reflecting coating also solves conventional visual illusion graticule and does not use reflective painting
The problem of the Night visibility difference that material causes.
2. by associating vehicle and road, it is ensured that the realization of forced deceleration function.Both make to run at a low speed or subtract in regulation
The vehicle actively slowed down in speed section can pass through unaffected deceleration area, also make the automobile of hypervelocity by time not
Need to rely on mechanical vibration to realize slowing down, it is to avoid carried to vehicle and driver by jolting during existing deceleration strip
The injury come.
The different deceleration demand in the most each section can be arranged by trackside signal transmitting unit and send, and is ensureing safety
On the premise of, realize forced deceleration by the way accelerating operation temporarily forbidding driver, and deceleration is sailed out of in combination
The minimum operating range in section judges the termination time of moderating process, has really ensured its slowing effect.
4. at forced deceleration it may happen that under fortuitous event, driver also can be reminded in time, and recovers driver to car
Control, do not carry out forced deceleration.The mandatory of deceleration demand and motility are truly realized it, it is achieved that road
The final goal of road safety.
5. the visual illusion pattern of visual illusion speed reduction marking is made up of block yellow, blue, red, utilizes people's vision to color
Contrast, making people produce at this by the contrast of champac red trichromatism has the strong illusion of " barrier ", can maximum journey
Degree ground promotes driver actively to slow down.Set up illuminator, it is ensured that the illuminating effect of deceleration area simultaneously.
6. the spacing for visual illusion speed reduction marking with trackside signal transmitting unit is designed, the size of its numerical value
Determine the activationary time of car speed control unit, consider F-Zero, time of driver's reaction, vehicle subtract
Speed acceleration and the signal coverage of trackside signal transmitting unit, it is ensured that sending out of trackside signal transmitting unit
Send range of signal can activate vehicle after driver sails deceleration area in time, and coordinate based on the united road of bus or train route
Road visual illusion forced deceleration method, it is judged that whether driver slows down, and then realize speed deceleration control, if visual illusion
Driver has been played deceleration warning function by speed reduction marking, does not the most access the control of speed, but still monitors vehicle
Transport condition, until vehicle sails out of deceleration area, it is more reasonable to design.
7. the F-Zero that front deceleration section specifies is equal with the numerical value of the shortest operating range sailing out of this deceleration area
Renewal can be adjusted in real time so that the system road visual illusion forced deceleration to vehicle in conjunction with present road traffic information
Control to adjust intensity along with road surface visibility degree, vehicle accident occurrence frequency and congested in traffic degree, Jin Erbao
Demonstrate,prove the road visual illusion forced deceleration effect of vehicle substantially, be of practical significance.
Accompanying drawing explanation
Fig. 1 is the laying schematic diagram of bus or train route of the present invention united road visual illusion forced deceleration system；
Fig. 2 is the visual illusion pattern schematic diagram of visual illusion speed reduction marking in the present invention；
Fig. 3 is that mode schematic diagram laid by the visual illusion pattern of visual illusion speed reduction marking in the present invention；
Fig. 4 is the fundamental diagram of bus or train route of the present invention united road visual illusion forced deceleration system；
Fig. 5 is the flow chart of bus or train route of the present invention united road visual illusion forced deceleration method.
In figure: 1, vehicle, 2, visual illusion speed reduction marking, 3, trackside signal transmitting unit, 4, board units,
5, car speed control unit, 6, illuminator, 21, visual illusion pattern, 211, blue block, 212, yellow
Block, 213, red block, 51, speed controller, 52, vehicle speed sensor, 53, spacing sensor, 54, electricity
Sub-air throttle.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the technology of the present invention side
Implement premised on case, give detailed embodiment and concrete operating process, but the protection model of the present invention
Enclose and be not limited to following embodiment.
As it is shown in figure 1, a kind of bus or train route united road visual illusion forced deceleration system include visual illusion speed reduction marking 2,
Trackside signal transmitting unit 3, board units 4 and car speed control unit 5, below to each unit specifically
Bright:
Visual illusion speed reduction marking 2, is located on the road of deceleration area and scribbles reflecting coating, for realizing driving
The warning function of member.Utilize the visual illusion effect of people, such as the selectivity of vision, globality, constancy etc. and
Combination, correspondingly can have multiple design, cause to people have barrier, width of roadway to narrow on road surface, car
The visual illusions such as speed quickening, thus promote driver actively to slow down.Utilization can carry out visual illusion deceleration by reflective coating
The construction of graticule 2, can significantly improve night vision effect so that visual illusion speed reduction marking 2 also can play preferably at night
Warning function.
Trackside signal transmitting unit 3 (Road Side Unit, RSU), is located at the trackside of deceleration area, and along road
Road direction of traffic is positioned at the front of visual illusion speed reduction marking 2 original position, sends current road to passing driving vehicle
The F-Zero of section and sail out of the shortest operating range of this deceleration area, F-Zero and the shortest operating range according to
Traffic information automatically updates, it is also possible to remotely located by host computer.
Board units 4 (On Board Unit, OBU), is located on vehicle 1, receives trackside signal transmitting unit
3 F-Zero sent and the shortest operating ranges, and the information received is sent to car speed control unit 5.
Car speed control unit 5, is located on vehicle 1, receives the F-Zero and the shortest that board units 4 forwards
Operating range, and according to F-Zero, the shortest operating range and vehicle traveling information, Vehicle Speed is closed
Ring controls so that vehicle 1, through deceleration area automatic retarding, keeps simultaneously and vehicle periphery object has necessarily
Safe distance.As shown in Figure 4, car speed control unit 5 includes speed controller 51, and connects respectively
Connect the vehicle speed sensor 52 of speed controller 51, spacing sensor 53 and electronic throttle 54, vehicle speed sensor
52 travel speed that detection vehicle is current in real time and vehicle operating range, spacing sensor 53 Real-time Collection vehicles
With the spacing of front and back's car, speed controller 51 is according to current travel speed, vehicle operating range and the vehicle of vehicle
Being controlled the aperture of electronic throttle 54 with the spacing of front and back car, electronic throttle 54 is by controlling vehicle 1
The air inflow of transmitter regulates Vehicle Speed in real time.
In Fig. 1, the road surface of regulation deceleration area arranges visual illusion speed reduction marking 2, and behind along vehicle row
The trackside sailing direction certain distance arranges trackside signal transmitting unit 3, if this section illuminating effect is poor, for ensureing
The night vision of speed reduction marking, also should be attached to this section and arrange the photograph coordinating increase illumination with visual illusion speed reduction marking 2
Bright device 6, the switch of illuminator 6 can be controlled by trackside signal transmitting unit 3, and closed mode at ordinary times, at night
Between or the visual field such as dense fog bad in the case of open, to strengthen the display effect of visual illusion speed reduction marking 2.
The original position of the visual illusion speed reduction marking 2 coated by deceleration area and the spacing of trackside signal transmitting unit 3
From SRSUMeet below equation:
In formula, VmaxFor the F-Zero of current road segment, TrSee visual illusion speed reduction marking 2 for driver and actively make car
1 response time slowed down, asThe acceleration slowed down for vehicle 1, SeFor the trackside signal transmitting unit 3 set
Signal coverage.In the present embodiment, if generally, TrFor 0.75s, asFor 5m/s2, SeFor 20m,
VmaxFor 9m/s, then SRSUFor 34.85m.
As shown in Figures 2 and 3, visual illusion speed reduction marking 2 uses three-dimensional visual illusion speed reduction marking 2, and visual illusion subtracts
Speed graticule 2 is two, and two visual illusion speed reduction markings 2 are symmetrical arranged with center line of road for axis of symmetry, and every regards mistake
Feel that speed reduction marking 2 all includes the multiple visual illusion patterns 21 arranged along road travel direction, each visual illusion pattern
21 are divided into 211, yellow block 212 of two blue blocks and a red block 213, and two blue blocks 211 are left
Right symmetrical laying, red block 213 and yellow block 212 are laid before and after road travel direction, visual illusion speed reduction marking
2 utilize people's visual contrast to color, and making people produce at this by the contrast of champac red trichromatism has " barrier "
Illusion, promotes driver actively to slow down.
In Fig. 2, visual illusion pattern 21 is relatively long side, and yellow block 212 and red block 213 are isosceles trapezoid,
Two blue blocks 211 are tetragon, relatively long side vertical with direction of traffic, the both sides adjacent with this limit with
Direction of traffic is parallel, and remaining three limits are protruding towards direction of traffic.
In Fig. 3, the orientation of speed reduction marking pattern is perpendicular with driveway border, and with track center line as symmetry
The symmetrical arrangement of axle.As a example by a bicycle road wide for 3.5m, speed reduction marking is by two visual illusion patterns 21
Composition, distance S between patternaFor 1.1m, speed reduction marking pattern length L is 0.5m, and width W is 0.4m,
Distance S with road boundarywFor 0.7m.
As can be seen from Figure 4, native system has a following functions:
1, trackside signal transmitting unit 3 can arrange, by host computer, F-Zero and the shortest traveling that this section specifies
Distance, and can adjust in real time according to surface conditions trackside signal element send F-Zero and the shortest traveling away from
From data, then by vehicle-carrying communication DSRC (Dedicated Short Range Communication) technology, will
Speed-limiting messages is sent to board units 4, thus realizes more accurate and personalized deceleration.
2, board units 4 receives and transmits what trackside signal transmitting unit 3 sent to car speed control unit 5
F-Zero and the shortest operating range information, use active OBU, increases communication distance, and can reduce DSRC
The electromagnetic radiation of system.
3, speed controller 51 receives board units 4 and transmits the speed-limiting messages of coming, and by vehicle speed sensor 52
And spacing sensor 53 collects the running condition information that vehicle is current.According to the current transport condition of vehicle and
The F-Zero information that this section specifies, the control strategy determine whether vehicle 1 should slow down, slowing down and subtracting
The number of rate, and send corresponding control signal to electronic throttle 54, remind driving by voice simultaneously
Member, it is achieved required control effect.
As it is shown in figure 5, it is a kind of based on said system based on bus or train route united road visual illusion forced deceleration method bag
Include following steps:
S1: trackside signal transmitting unit 3 arranges the F-Zero V in front deceleration sectionmaxAnd sail out of this deceleration road
The shortest operating range S of sectionmin, car speed control unit 5 arranges the vehicle minimum safe spacing under different speed
Ss；
The numerical value of the F-Zero that front deceleration section specifies and the shortest operating range that sails out of this deceleration area is divided equally
Not adjusting in real time according to present road traffic information, road conditions information includes road surface visibility degree, vehicle accident
Occurrence frequency and congested in traffic degree.When pavement behavior is the best, the road surface slippery situation caused such as weather reason or visuality
Time the best, or when occurring other to be necessary the situation reducing speed, when should reduce more at ordinary times by this section the highest
Speed, max. speed V i.e. sentmaxNumeric ratio normal conditions arrange numerical value little.Or ought monthly vehicle accident
When occurrence frequency increases, then reduce F-Zero, or increase the shortest operating range.In the present embodiment, if the shortest
Operating range Smin=50m, max. speed Vmax=9m/s, minimum safe spacing SsFor 80m.
S2: when vehicle travels to this deceleration area, board units 4 receives trackside signal transmitting unit 3
After the F-Zero sent and the shortest operating range information, activate car speed control unit 5, and to car speed control
Unit 5 processed sends the information received.
S3: car speed control unit 5 gathers the vehicle operating range S after activatingd, and real-time judge vehicle row
Sail whether distance is more than the shortest operating range, if so, perform step S5, if it is not, perform step S4.
S4: car speed control unit 5 starts this monitoring travelling vehicle and control so that vehicle travels
Speed reduction is to below F-Zero, and keeps safe distance, jump procedure S3 with surrounding vehicles.
S5: car speed control unit 5 terminates this monitoring travelling vehicle and control, until next train
Speed control unit 5 is activated.
The monitoring that in step S4, vehicle is travelled by car speed control unit 5 includes with control:
1) vehicle traveling information monitoring: car speed control unit 5 Real-time Collection vehicle traveling information, vehicle row
The information of sailing includes current travel speed Vc, the spacing S of vehicle and front truckfSpacing S with vehicle Yu rear carb；
2) speed control mode switching controls:
21) car speed control unit 5 is by contrasting the magnitude relationship of current travel speed and F-Zero, with
Determine the control mode of speed so that the control of Vehicle Speed is keeping driver's control mode and cutting off driving
Switching in member's control mode, in cutting off driver's control mode, car speed control unit 5 substitutes driver couple
Vehicle Speed is controlled；
22) simultaneously, when vehicle 1 travels under cutting off driver's control mode, car speed control unit 5 is continuous
By the magnitude relationship of the contrast vehicle spacing with car front and back with vehicle minimum safe spacing, and Sf、SbChange
Change trend, adjusts the control mode to speed in real time, and cut-out driver's control mode switching returns holding driver
Control mode.
In speed control mode switching, if current travel speed is less than or equal to F-Zero, then vehicle 1 is keeping
Travel under driver's control mode, if current travel speed is more than F-Zero, then car speed control unit 5
Cut off driver's control signal to speed, make driver invalid to the control signal of throttle opening, and reduce joint
Valve opening makes vehicle 1 slow down, until speed is decreased to below max. speed.
When vehicle 1 travels under cutting off driver's control mode, constantly compare the spacing S of vehicle and car front and backf、Sb
Size with the automobile minimum safe spacing under current vehicle speed.If Sf、SbBoth greater than minimum safe spacing Ss, then
Do not recover driver's control to speed, until the control process of this speed is tied by car speed control unit 5
Bundle；Once Sf<SsOr Sb<Ss, and SfOr SbAt safety time TsInside decrease 30%, then driver is sent
Alarm signal, by voice to driver's prompting " note that has vehicle to approach in front or behind " etc.
Prompt tone, and recover driver's control to air throttle, and terminate car speed control unit 5 to this speed
Control process.
In the present embodiment, the safety time T of settingsMeet below equation:
Then Ts≈2.67s。
In sum, the present invention is exactly on the basis of existing visual illusion speed reduction marking 2, utilizes reflectorized material to improve
Its night vision, and the information using vehicle-carrying communication technology to realize between bus or train route is mutual, in car speed control unit 5
Process under, for the currently practical travel conditions of vehicle force slow down accordingly.Strengthening visual illusion speed reduction marking
While the psychological alarming effect of 2, it is achieved personalized physical constraints deceleration, and then realize for different cars
1, the different travel conditions of vehicle 1 and different road surface carry out forced deceleration in various degree, it is to avoid tradition
Deceleration strip is to the infringement by vehicle 1.
Claims (10)
1. a bus or train route united road visual illusion forced deceleration system, it is characterised in that including:
Visual illusion speed reduction marking, is located on the road of deceleration area and scribbles reflecting coating, is formed and promotes driver master
The dynamic visual illusion slowed down；
Trackside signal transmitting unit, is located at the trackside of deceleration area, and is positioned at visual illusion deceleration along road travel direction
The front of graticule original position, sends the F-Zero of current road segment to driving vehicle and sails out of this deceleration area
The shortest operating range, F-Zero and the shortest operating range automatically update according to traffic information；
Board units, is located on vehicle, receive trackside signal transmitting unit send F-Zero and the shortest traveling away from
From；
Car speed control unit, is located on vehicle, receive board units forward F-Zero and the shortest traveling away from
From, and control Vehicle Speed according to F-Zero, the shortest operating range and vehicle traveling information so that vehicle
Travel speed decelerates to below F-Zero, and keeps safe distance with surrounding vehicles.
A kind of bus or train route united road visual illusion forced deceleration system the most according to claim 1, its feature
Being, described visual illusion speed reduction marking uses three-dimensional visual illusion speed reduction marking, and the trackside of deceleration area arrange with
Visual illusion speed reduction marking coordinates the illuminator increasing illumination.
A kind of bus or train route united road visual illusion forced deceleration system the most according to claim 2, its feature
Being, described visual illusion speed reduction marking is two, and two visual illusion speed reduction markings are symmetrical with center line of road for axis of symmetry
Arranging, every visual illusion speed reduction marking all includes the multiple visual illusion patterns arranged along road travel direction, each regards
Illusion pattern is divided into two blue blocks, a yellow block and a red block, two symmetrical layings of blue block,
Red block and yellow block are laid before and after road travel direction.
A kind of bus or train route united road visual illusion forced deceleration system the most according to claim 1, its feature
Being, described car speed control unit includes speed controller, and the speed connecting speed controller respectively passes
Sensor, spacing sensor and electronic throttle, vehicle speed sensor detects the current travel speed of vehicle and car in real time
Operating range, the spacing of spacing sensor Real-time Collection vehicle and car front and back, speed controller is current according to vehicle
The spacing of travel speed, vehicle operating range and vehicle and front and back car the aperture of electronic throttle is controlled,
Electronic throttle regulates Vehicle Speed in real time by the air inflow controlling vehicle transmitter.
A kind of bus or train route united road visual illusion forced deceleration system the most according to claim 1, its feature
It is, the original position of described visual illusion speed reduction marking and spacing S of trackside signal transmitting unitRSUMeet with
Lower formula:
In formula, VmaxFor the F-Zero of current road segment, TrSee visual illusion speed reduction marking for driver and actively make vehicle
The response time slowed down, asFor the acceleration of vehicle deceleration, SeThe signal of the trackside signal transmitting unit for setting
Coverage.
6. one kind based on system as claimed in claim 1 based on bus or train route united road visual illusion forced deceleration side
Method, it is characterised in that comprise the following steps:
S1: trackside signal transmitting unit arranges the F-Zero in front deceleration section and sails out of this deceleration area
The shortest operating range, car speed control unit arranges the vehicle minimum safe spacing under different speed；
S2: when vehicle travels to this deceleration area, board units receives what trackside signal transmitting unit sent
After F-Zero and the shortest operating range information, activate car speed control unit, and to car speed control unit
Send the information received；
S3: car speed control unit collection activate after vehicle operating range, and real-time judge vehicle travel away from
From whether more than the shortest operating range, if so, perform step S5, if it is not, perform step S4；
S4: car speed control unit starts this monitoring travelling vehicle and control so that vehicle travels speed
Degree decelerates to below F-Zero, and keeps safe distance, jump procedure S3 with surrounding vehicles；
S5: car speed control unit terminates this monitoring travelling vehicle and control；
The monitoring that in step S4, vehicle is travelled by car speed control unit includes with control:
1) vehicle traveling information monitoring: car speed control unit Real-time Collection vehicle traveling information, described vehicle
Driving information includes the spacing of current travel speed and vehicle and car front and back；
2) speed control mode switching controls: car speed control unit by the current travel speed of contrast with
High speed per hour so that the control of Vehicle Speed is keeping driver's control mode and cutting off in driver's control mode
Switching, in cutting off driver's control mode, car speed control unit substitutes driver and enters Vehicle Speed
Row controls, and meanwhile, when vehicle travels under cutting off driver's control mode, car speed control unit is by contrast
The spacing of vehicle and front and back car and vehicle minimum safe spacing, return by cut-out driver's control mode switching to holding and drive
Member's control mode.
A kind of bus or train route united road visual illusion forced deceleration method the most according to claim 6, its feature
Being, in described speed control mode switching, if current travel speed is less than or equal to F-Zero, then vehicle exists
Keeping travelling under driver's control mode, if current travel speed is more than F-Zero, then car speed controls single
Unit cuts off driver's control signal to speed, and controls Vehicle Speed and decelerate to below F-Zero.
A kind of bus or train route united road visual illusion forced deceleration method the most according to claim 6, its feature
Be, in described speed control mode switching, vehicle cut off travel under driver's control mode time, when vehicle with
Front and back the spacing of car is less than the vehicle minimum safe spacing under current vehicle speed, and the spacing of vehicle and car front and back is setting
Safety time in when constantly reducing, car speed control unit sends alarm signal to driver, and recovers to drive
Member's control signal to speed.
A kind of bus or train route united road visual illusion forced deceleration method the most according to claim 8, its feature
It is, the safety time T of described settingsMeet below equation:
In formula, SsFor vehicle minimum safe spacing, VmaxF-Zero for current road segment.
A kind of bus or train route united road visual illusion forced deceleration method the most according to claim 6, its feature
It is, the F-Zero that described front deceleration section specifies and sail out of the numerical value of the shortest operating range of this deceleration area
Adjusting in real time according to the traffic information of present road respectively, described traffic information includes road surface visibility degree, friendship
Interpreter's event occurrence frequency and congested in traffic degree.
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| CN108492596A (en) * | 2018-03-16 | 2018-09-04 | 武汉理工大学 | A kind of underground interchange anti-overtaking-collision method based on visual perception |
| CN108944857A (en) * | 2018-06-27 | 2018-12-07 | 昆明理工大学 | A kind of nearly zebra stripes forced deceleration of vehicle or parking device |
| CN110060474A (en) * | 2019-04-12 | 2019-07-26 | 武汉理工大学 | A kind of tunnel dynamic edge rate intelligent speed-control system and method |
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