CN107464433A - Deceleration for expressway exit guides system - Google Patents
Deceleration for expressway exit guides system Download PDFInfo
- Publication number
- CN107464433A CN107464433A CN201710564287.4A CN201710564287A CN107464433A CN 107464433 A CN107464433 A CN 107464433A CN 201710564287 A CN201710564287 A CN 201710564287A CN 107464433 A CN107464433 A CN 107464433A
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- speed
- deceleration
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a kind of deceleration for expressway exit to guide system, mainly includes automotive check identification device, brake calculation system and road alarm set；Automotive check identification device, using the principle of radar acoustic detection, vehicle detection is carried out to the vehicle for driving into driver behavior area and real-time speed identifies；The information that brake calculation system is collected according to automotive check identification device, Dynamic Programming go out the reasonable deceleration track of vehicle；Road alarm set is exported the deceleration track of brake calculation systems organization using the color of speed color notice board, by color change, progressively guides driver to slow down.The present invention makes the braking deceleration process of vehicle at expressway exit gentler, improves drive safety；Deceleration board can recognize distance far, distance can be utilized by adding braking relative to traditional notice board using color prompting scheme；Guiding of targetedly slowing down can be carried out to vehicle according to the braking ability difference of different type vehicle.
Description
Technical field
The present invention relates to a kind of traffic guidance system, and in particular to a kind of deceleration guiding system at expressway exit
System, belongs to traffic brake safe technical field.
Background technology
Shunting before expressway exit ring road be present, through vehicles and steering Vehicle Speed difference are big, traffic conditions
It is complicated.The automobile speed of running on expressway is high, and exit ramp has low speed limitation, therefore the section entered before ring road
Speed transition is violent, rear-end impact Frequent Accidents.As shown by data both domestic and external, the accident number of exit ramp account for interchange
With 40% of accident total degree in the range of service area, the accident of expressway exit ring road exceeds the speed limit caused by predominantly braking deficiency
And the too urgent caused rollover of braking.Therefore, retarding braking prompting is carried out, the reasonable regulation speed of driver is guided, can effectively improve
Existing expressway ramp security situation.
The speed prompt device of expressway exit is mainly road speed limitation board at present, and driver needs to distinguish during use
Numerical value on other speed limitation board, and with current vehicle speed relatively after, take corresponding acceleration and deceleration to operate, time of driver's reaction length.When
Influenceed by illumination condition or weather condition, speed limitation board is difficult to recognize, and the hysteresis quality of reaction is more obvious.And speed limitation board can only
Single limitation speed is provided, different vehicle braking ability difference causes driver can not well to be held to how gently to slow down,
Make the traffic accident incidence in the section increase.Therefore, how overcome the deficiencies in the prior art, to expressway exit vehicle in front
It is the problem of improving the safe urgent need to resolve in the section to carry out targetedly deceleration guiding.
The content of the invention
The present invention is for the problem of driving is dangerous at expressway exit, there is provided a deceleration for expressway exit
Guiding system, it is intended to be driver's quick prompt reasonable operation information, progressively guide it steadily to slow down, improve the section and drive peace
Entirely.
What the present invention was realized in：
Deceleration for expressway exit guides system, mainly includes automotive check identification device, brake calculation system and road
Road alarm set；
Automotive check identification device, using the principle of radar acoustic detection, vehicle inspection is carried out to the vehicle for driving into driver behavior area
Survey and speed identifies in real time；
The information that brake calculation system is collected according to automotive check identification device, Dynamic Programming go out the reasonable deceleration track of vehicle；
Road alarm set is exported the deceleration track of brake calculation systems organization using the color of speed color notice board, is passed through
Color change, progressively driver is guided to slow down.
Further scheme is：Described automotive check identification device, be installed on away from expressway exit ring road 150 ~
At 180m, the deceleration-operation area from automotive check identification device to exit ramp is formed；Automotive check identification device includes radar
Detecting module, data memory module, Bus- Speed Monitoring module, vehicle cab recognition module, radio receiving transmitting module；Radar detected module uses
The method of acoustic detection, detection sector region is 150 ~ 180 meters, covers whole deceleration-operation area, radar detected module respectively with
Bus- Speed Monitoring module and vehicle cab recognition module are connected, and Bus- Speed Monitoring module is used for the real-time speed for detecting vehicle and accelerated in real time
Degree, vehicle cab recognition module are used to vehicle carrying out vehicle differentiation；Speed information and vehicle information are transmitted by radio receiving transmitting module
Into brake calculation system；Data memory module is used to store the information such as model data, the braking-distance figures of correlation.
Further scheme is：Described brake calculation system, is installed at expressway exit, including data processing
Module, deceleration trajectory computation module, radio receiving transmitting module, data memory module；Data processing module and radio receiving transmitting module phase
Even, data processing module receives speed and vehicle information from radio receiving transmitting module and is digitized processing；Deceleration trajectory calculation
Module is connected with data memory module, Dynamic Extraction data on file and the result of calculation for storing reasonable deceleration track.
Further scheme is：The road alarm set, is installed at expressway exit, including speed color carries
Show board, CPU control modules, radio receiving transmitting module, visibility detecting module；Speed color notice board is LED color display screen, is shown
Display screen is provided with the acceleration prompting region of inside and the speed prompt region of outside, and each region uses three kinds of colors respectively
Represent that speed/acceleration is excessive, speed/acceleration is suitable, the too small three kinds of vehicle-states of speed/acceleration;CPU control modules connect
Visibility detecting module, the information of radio receiving transmitting module are received, and controls color change and the brightness change of color notice board.
Further scheme is：Brake calculation system uses integrated circuit, installed in the speed color notice board back side.
Further scheme is：On road surface between automotive check identification device and speed color notice board, with Huang
The coating of color marks deceleration-operation region, and marks the gateway in deceleration-operation area with yellow paint emphatically.
Further scheme is：Speed color notice board is divided into internal speed region and external acceleration region, internal
Velocity band is red greenish-yellow three color change, and tone is respectively H=60, and and H=0 of H=120, external acceleration region is
Bluish-green orange three color change, tone are respectively H=240, and H=25 of H=120；
Further scheme is：In the color change process of speed color notice board, speed color notice board perimeter is adopted
With the gradual change color change of ecto-entad, internal speed region is using gradual change color change from inside to outside.
Further scheme is：Vehicle is divided into full-sized car, compact car, the class of kart three during vehicle cab recognition,
Basis of characterization is axletree number and vehicular sideview contour feature；
Further scheme is：Deceleration trajectory computation module plans whole vehicle speed trajectory, braking using the method for Dynamic Programming
Engine braking is preferentially used during calculating, if necessary using brake；
Further scheme is：When vehicle is introduced into deceleration-operation area, there is the white lamp that frequency is 2HZ to flash on direction board, with
Driver to fatigue is to approach the prompting of deceleration area；
Further scheme is：Different according to environment visibility, color notice board is provided with low-luminance mode and high brightness mould
Formula；Low-luminance mode, brightness 500-600cd/m2.When visibility is less than 200 meters, system switches to high brightness pattern, brightness
Up to 800-1000cd/m2。
The deceleration for expressway exit of the present invention guides system in real work, when automobile enters deceleration-operation
During region, automotive check identification device provides current vehicle speed and current acceleration information gives road system for prompting.
When present speed is more than limitation speed, speed color notice board internal speed region is red, present speed and limit
The bigger color of speed difference processed is deeper, red progressively to green transition with vehicle deceleration, when speed is less than or equal to limitation speed
Spend and acceleration is where appropriate, speed color notice board internal speed region is shown in green.When speed is less than limitation speed and adds
When speed is inappropriate, display board internal speed region is shown as yellow.
The braking ability of distance and vehicle can be utilized according to current brake, calculates the reasonable acceleration of vehicle, currently
When acceleration is more than reasonable acceleration, speed color notice board external acceleration region is orange, and current acceleration is less than reasonable
During acceleration, speed color notice board external acceleration region is blueness, as acceleration and reasonable acceleration difference reduce, face
Color is progressively green outside speed color notice board when current acceleration is reasonable acceleration to green transition.Driver needs
Constantly adjustment vehicle running state, until exterior domain is illustrated as green in speed color notice board.
Beneficial effects of the present invention：1. making the braking deceleration process of vehicle at expressway exit gentler, improve
Drive safety；2. deceleration board can recognize distance far, adding braking relative to traditional notice board can using color prompting scheme
Utilize distance；3. the present invention to vehicle can targetedly slow down and draw according to the braking ability difference of different type vehicle
Lead.
Brief description of the drawings
Fig. 1 is that the deceleration of expressway exit guides system mounting location floor map；
Fig. 2 is the installation of automotive check identification device and operating diagram；
Fig. 3 is the color change procedure chart of road alarm set when vehicle initial acceleration is excessive；
Fig. 4 is the color change procedure chart of road alarm set when vehicle initial acceleration is reasonable；
Fig. 5 is the color change procedure chart of road alarm set when vehicle initial acceleration is too small.
In figure：1st, road alarm set, 2, automotive check identification device, 3, deceleration-operation area, 4, expressway exit, 6,
Vehicle is away from expressway exit distance change process, and 7, road color direction board color change process, 8, changes in vehicle speed mistake
Journey.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, the deceleration for expressway exit guides system, mainly includes automotive check identification device 2,
Brake calculation system and road alarm set 1；
Automotive check identification device, using the principle of radar acoustic detection, vehicle inspection is carried out to the vehicle for driving into driver behavior area
Survey and speed identifies in real time；
The information that brake calculation system is collected according to automotive check identification device, Dynamic Programming go out the reasonable deceleration track of vehicle；
Road alarm set is exported the deceleration track of brake calculation systems organization using the color of speed color notice board, is passed through
Color change, progressively driver is guided to slow down.
Described automotive check identification device, it is installed on away from the 150 ~ 180m of ring road of expressway exit 4, is formed from automobile
Detection identification device can be drawn to the deceleration-operation area 3 of exit ramp, deceleration-operation area 3 with coating；Automotive check identification dress
Put including radar detected module, data memory module, Bus- Speed Monitoring module, vehicle cab recognition module, radio receiving transmitting module；Radar is visited
The method that module uses acoustic detection is surveyed, detection sector region is 150 ~ 180 meters, covers whole deceleration-operation area, radar detection
Module is connected with Bus- Speed Monitoring module and vehicle cab recognition module respectively, and Bus- Speed Monitoring module is used for the real-time speed for detecting vehicle
And real time acceleration, vehicle cab recognition module are used to vehicle carrying out vehicle differentiation；Speed information and vehicle information are by wirelessly receiving
Module transfer is sent out into brake calculation system；Data memory module is used to store the information such as model data, the braking-distance figures of correlation.
Described brake calculation system, is installed at expressway exit, including data processing module, deceleration trajectory calculation
Module, radio receiving transmitting module, data memory module；Data processing module is connected with radio receiving transmitting module, data processing module from
Radio receiving transmitting module receives speed and vehicle information and is digitized processing；Deceleration trajectory computation module and data memory module
It is connected, Dynamic Extraction data on file and the result of calculation for storing reasonable deceleration track.Brake calculation system uses integrated circuit, can
With installed in the speed color notice board back side.
The road alarm set, is installed at expressway exit, including speed color notice board, CPU control modules,
Radio receiving transmitting module, visibility detecting module；Speed color notice board is LED color display screen, and display screen is provided with inside
Acceleration prompting region and the speed prompt region of outside, each region represent speed/acceleration using three kinds of colors respectively
Excessive, speed/acceleration is suitable, the too small three kinds of vehicle-states of speed/acceleration；CPU control modules receive visibility detection mould
The information of block, radio receiving transmitting module, and control color change and the brightness change of color notice board.
Speed color notice board is divided into internal speed region and external acceleration region, and internal speed region is red greenish-yellow three
Color change, tone are respectively H=60, and H=0 of H=120, and external acceleration region is bluish-green orange three color change, tone
And H=25 of respectively H=240, H=120；In the color change process of speed color notice board, the prompting of speed color
Board perimeter uses the gradual change color change of ecto-entad, and internal speed region is using gradual change color change from inside to outside.
Vehicle is divided into full-sized car, compact car, the class of kart three during vehicle cab recognition, basis of characterization be axletree number with
And vehicular sideview contour feature；
Deceleration trajectory computation module plans whole vehicle speed trajectory using the method for Dynamic Programming, preferential using starting during brake calculation
Mechanism is moved, if necessary using brake；
When vehicle is introduced into deceleration-operation area, there is the white lamp that frequency is 2HZ to flash on speed color notice board, with driving to fatigue
The person of sailing is to approach the prompting of deceleration area；
Different according to environment visibility, speed color notice board is provided with low-luminance mode and high brightness pattern.Low-luminance mode,
Brightness is 500-600cd/m2.When visibility is less than 200 meters, system switches to high brightness pattern, and brightness is up to 800-1000cd/
m2。
As shown in Figure 2, the deceleration for expressway exit of the invention guides system to work as automobile in real work
During into deceleration-operation region, automotive check identification device, which provides current vehicle speed and current acceleration information and reminded to road, is
System.
When present speed is more than limitation speed, speed color notice board internal speed region is red, present speed and limit
The bigger color of speed difference processed is deeper, red progressively to green transition with vehicle deceleration, when speed is less than or equal to limitation speed
Spend and acceleration is where appropriate, speed color notice board internal speed region is shown in green.When speed is less than limitation speed and adds
Speed is not that at that time, display board internal speed region is shown as yellow.
The braking ability of distance and vehicle can be utilized according to current brake, calculates the reasonable acceleration of vehicle, currently
When acceleration is more than reasonable acceleration, speed color notice board external acceleration region is orange, and current acceleration is less than reasonable
During acceleration, speed color notice board external acceleration region is blueness, as acceleration and reasonable acceleration difference reduce, face
Color is progressively green outside speed color notice board when current acceleration is reasonable acceleration to green transition.Driver needs
Constantly adjustment vehicle running state, until exterior domain is illustrated as green in speed color notice board.
Accompanying drawing 3,4,5 show respectively in the case where initial velocity is more than fixing speed, the not similar shape of initial acceleration
Into different speed color notice boards color change process.
As shown in Figure 3, vehicle initial velocity is more than fixing speed, and speed color notice board internal speed region is shown as
Red, because vehicle initial acceleration is excessive, external acceleration region is orange, as current acceleration and reasonable acceleration are poor
Value reduces, and external acceleration field color is gradually from orange to green transition, and exterior domain is aobvious in final speed color direction board
It is shown as green.
As shown in Figure 4, vehicle initial velocity is more than fixing speed, and speed color notice board internal speed region is shown as
Red, because vehicle initial acceleration is consistent with reasonable acceleration, therefore external acceleration region is shown in green always, most
Exterior domain is illustrated as green in terminal velocity color direction board.
As shown in Figure 5, vehicle initial velocity is more than fixing speed, and speed color notice board internal speed region is shown as
Red, because vehicle initial acceleration is too small, external acceleration region is blueness, as current acceleration and reasonable acceleration are poor
Value reduces, and external acceleration field color is gradually from blueness to green transition, and exterior domain is aobvious in final speed color direction board
It is shown as green.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in principle disclosed in the present application
Within scope and spirit.
Claims (10)
1. the deceleration guiding system for expressway exit, it is characterised in that mainly include automotive check identification device, brake
Computing system and road alarm set；
Automotive check identification device, using the principle of radar acoustic detection, vehicle inspection is carried out to the vehicle for driving into driver behavior area
Survey and speed identifies in real time；
The information that brake calculation system is collected according to automotive check identification device, Dynamic Programming go out the reasonable deceleration track of vehicle；
Road alarm set is exported the deceleration track of brake calculation systems organization using the color of speed color notice board, is passed through
Color change, progressively driver is guided to slow down.
2. the deceleration guiding system for expressway exit according to claim 1, it is characterised in that：Described automobile inspection
Survey identification device, be installed on away from 150 ~ 180m of expressway exit ring road at, formed from automotive check identification device to export circle
The deceleration-operation area in road；Automotive check identification device includes radar detected module, data memory module, Bus- Speed Monitoring module, car
Type identification module, radio receiving transmitting module；The method that radar detected module uses acoustic detection, detection sector region are 150 ~ 180
Rice, covers whole deceleration-operation area, radar detected module is connected with Bus- Speed Monitoring module and vehicle cab recognition module respectively, speed
Detection module is used for the real-time speed and real time acceleration for detecting vehicle, and vehicle cab recognition module is used to vehicle carrying out vehicle area
Point；Speed information and vehicle information are transmitted into brake calculation system by radio receiving transmitting module；Data memory module is used to deposit
Store up related model data, braking-distance figures information.
3. the deceleration guiding system for expressway exit according to claim 1, it is characterised in that：Described braking meter
Calculation system, is installed at expressway exit, including data processing module, deceleration trajectory computation module, radio receiving transmitting module, number
According to memory module；Data processing module is connected with radio receiving transmitting module, and data processing module receives speed from radio receiving transmitting module
With vehicle information and being digitized processing；Deceleration trajectory computation module is connected with data memory module, Dynamic Extraction storage money
Expect and store the result of calculation of reasonable deceleration track.
4. the deceleration guiding system for expressway exit according to claim 1, it is characterised in that：The road is reminded
Device, it is installed at expressway exit, including speed color notice board, CPU control modules, radio receiving transmitting module, visibility
Detecting module；Speed color notice board is LED color display screen, and display screen is provided with the acceleration prompting region of inside and outer
The speed prompt region in portion, each region represent that speed/acceleration is excessive using three kinds of colors respectively, and speed/acceleration is suitable,
The too small three kinds of vehicle-states of speed/acceleration；CPU control modules receive visibility detecting module, the information of radio receiving transmitting module,
And control color change and the brightness change of color notice board.
5. the deceleration guiding system according to claim 1 or 3 for expressway exit, it is characterised in that：Brake calculation
System uses integrated circuit, installed in the speed color notice board back side.
6. the deceleration guiding system for expressway exit according to claim 2, it is characterised in that：Described deceleration behaviour
Make area to be marked with coating.
7. the deceleration guiding system for expressway exit according to claim 4, it is characterised in that：The speed color
Color notice board is divided into internal speed region and external acceleration region, and internal speed region is red greenish-yellow three color change, and tone divides
Not Wei H=60, and H=0 of H=120, external acceleration region is bluish-green orange three color change, tone be respectively H=
240, H =120 and H = 25。
8. the deceleration guiding system for expressway exit according to claim 7, it is characterised in that：Speed color is prompted
In the color change process of board, speed color notice board perimeter uses the gradual change color change of ecto-entad, internal speed area
Domain is using gradual change color change from inside to outside.
9. the deceleration guiding system for expressway exit according to claim 2, it is characterised in that：Vehicle cab recognition module
Vehicle is divided into full-sized car, compact car, the class of kart three, basis of characterization is that axletree number and vehicular sideview profile are special
Sign.
10. the deceleration guiding system for expressway exit according to claim 3, it is characterised in that：Count deceleration track
Calculate module and whole vehicle speed trajectory is planned using the method for Dynamic Programming, preferentially use engine braking during brake calculation, if necessary
Using brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564287.4A CN107464433A (en) | 2017-07-12 | 2017-07-12 | Deceleration for expressway exit guides system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564287.4A CN107464433A (en) | 2017-07-12 | 2017-07-12 | Deceleration for expressway exit guides system |
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Family
ID=60543901
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| CN201710564287.4A Pending CN107464433A (en) | 2017-07-12 | 2017-07-12 | Deceleration for expressway exit guides system |
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| CN110660237A (en) * | 2019-09-25 | 2020-01-07 | 汉寿何岗新能源汽车有限公司 | Solar intelligent electronic board |
| CN110969848A (en) * | 2019-11-26 | 2020-04-07 | 武汉理工大学 | Automatic driving overtaking decision method based on reinforcement learning under opposite double lanes |
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Application publication date: 20171212 |
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