CN104575043B - Automatic prompt system and method during passing of motor vehicle through pedestrian crosswalk - Google Patents
Automatic prompt system and method during passing of motor vehicle through pedestrian crosswalk Download PDFInfo
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- CN104575043B CN104575043B CN201410710452.9A CN201410710452A CN104575043B CN 104575043 B CN104575043 B CN 104575043B CN 201410710452 A CN201410710452 A CN 201410710452A CN 104575043 B CN104575043 B CN 104575043B
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Abstract
The invention provides an automatic prompt system and a method during passing of a motor vehicle through a pedestrian crosswalk. The system comprises a video tracking unit, a prompt unit and a data processing unit; when the motor vehicle passes through a warning marking line of the pedestrian crosswalk, deceleration prompt is performed, and photographing is performed if no deceleration is performed; if a pedestrian passes through and a distance between the motor vehicle and the pedestrian is detected as less than a set threshold, a display screen prompts stop to avoid the pedestrian; and if the motor vehicle passes over a stop line, when the distance between the pedestrian and the motor vehicle in an advancing direction is less than the set threshold, the motor vehicle is photographed to provide a basis for subsequent traffic law administration. With the adoption of the scheme, the motor vehicle is prompted in advance to decelerate when the motor vehicle passes through the pedestrian crosswalk, and when the pedestrian passes through, the stop can be automatically prompted, so that an accident of a pedestrian bruise by the motor vehicle when the pedestrian passes through the pedestrian crosswalk can be avoided, and the walking safety of the pedestrian on the pedestrian crosswalk is improved.
Description
Technical field
The present invention relates to traffic administration field, specifically a kind of motor vehicle pass through crossing when automatic prompting system
System and method.
Background technology
With the fast development of social economy, road traffic is increasingly busy, and the contradiction of motor vehicle and pedestrian is projected very much, in
The go across the road common people that cause pay close attention to state's formula, how to go across the road on the premise of safety guaranteeing pedestrian, and improving road efficiency is
Focus of concern.Guarantee that pedestrains safety, the best approach of raising road efficiency are using pedestrian underground underpass
Can only be controlled using pedestrian crossing lamp where no condition or overpass mode separates in people's car, such road
Traffic efficiency will decline.
Vehicle supervision department all adopts no signal to improve road efficiency in the less section of pedestrian's street crossing demand
The crossing of lamp control, motor vehicle should follow the People's Republic of China (PRC) in the crossing controlled by no signal lamp
The 47th article of regulation of the law on road traffic safety：" motor vehicle pass through crossing when, should Reduced Speed Now；Meet pedestrian to lead to
Crossing is crossed, should Stop and give way.”
But, at present country driver is seldom slowed down when operating motor vehicles pass through crossing, and actively Stop and give way for energy
Motor vehicle it is just less, in order to ensure pedestrains safety, solve motor vehicle in accordance with the law Stop and give way problem, propose in prior art
A kind of motor vehicle zebra stripes do not give precedence to the scheme of pedestrian behavior capturing system, and patent document CN102592450B discloses one kind
Motor vehicle zebra stripes do not give precedence to pedestrian behavior capturing system, including：Pedestrian image collecting unit, for gathering the row on zebra stripes
People's image；Motor vehicle image acquisition unit, for motor vehicle image of the collection on the car lane of the zebra stripes；Pedestrian
Detector unit, for the pedestrian image detection pedestrian's number gathered according to the pedestrian image collecting unit；Motor vehicle detecting
With capture unit, for the motor vehicle image real-time detection motor vehicle gathered according to the motor vehicle image acquisition unit, when
Detect pedestrian's number that motor vehicle is located on the zebra stripes and the pedestrian detection unit is detected to be more than or equal in advance
When determining thresholding, at least three evidence-obtaining photographs are extracted in the motor vehicle image gathered from the motor vehicle image acquisition unit.
Although the program can be captured to the motor vehicle not given way, in the technical scheme, it is primarily present following
Problem：1st, the program motor vehicle can not be passed through no signal lamp control crossing when, indicating reducing speed of motor vehicle, it is impossible in machine
When motor-car meets pedestrian and passes through, when the safe distance of pedestrian and motor vehicle is less than given threshold, Stop and give way to point out motor vehicle；
2nd, when motor vehicle does not slow down, the program can not record whether motor vehicle crossing of passing through slows down, and this is that prevention traffic accident is sent out
Raw precondition；3rd, the standard of everyone current direct of travel of accurate recording and pedestrian's longitudinal maneuver car is unable in the program
True distance, therefore can not accomplish to prevent traffic accident and strict law enforcement afterwards in advance.
The content of the invention
For this purpose, the technical problem to be solved is of the prior art motor vehicle people's row of passing through can not to be pointed out horizontal
Slowed down in time during road, meet pedestrian by when prompting motor vehicle Stop and give way, while can not be to not avoiding pedestrian in accordance with the law
Illegal activities are recorded automatically, so as to propose a kind of motor vehicle pass through crossing when automatic prompt system and method.
To solve above-mentioned technical problem, a kind of motor vehicle of offer of the present invention pass through crossing when automatic prompt system
And method.
A kind of motor vehicle pass through crossing when automatic prompt system, including crossing and be arranged on crossing
Crossing stop line afterwards, is provided with crossing advance notice tag line after crossing stop line, also includes：
Video tracking unit：Track into crossing and predict each motor vehicle of tag line to crossing, and with
Track enters each pedestrian of crossing；
Tip element, is arranged on autos only direction, when motor vehicle enters following range, indicating reducing speed of motor vehicle
Or Stop and give way；
Data processing unit：Including the judgment sub-unit that gives way, judge whether there is walk on the crossing, if any
Walk, when pedestrian's direct of travel is less than setting prompting threshold value away from motor vehicle distance, points out motor vehicle to stop after stop line
Car, after motor vehicle crosses stop line, judges whether motor vehicle is less than safe distance threshold value with the distance of pedestrian, such as less than, then
The motor vehicle is taken pictures.
Preferably, the data processing unit also includes deceleration judgment sub-unit：Judge crossing advance notice tag line extremely
Whether slow down during the crossing stop line, such as do not slow down, then the motor vehicle is taken pictures.
Preferably, the video tracking subelement includes video acquisition subelement and image recognition tracking subelement, described
Video acquisition subelement includes camera, for gathering the pass through motor vehicle of crossing and the video image of pedestrian, the figure
As recognition and tracking subelement recognizes the image that the video acquisition subelement is collected, and recognize motor vehicle therein and pedestrian
Image, and the movement locus to the motor vehicle and pedestrian continuously tracked.
Preferably, also including synchronised clock, for single to the video acquisition subelement and described image recognition and tracking
Unit synchronizes process, to improve the precision to velocity measuring.
Preferably, also including the street pedestrian Accreditation Waiting Area for being arranged on crossing both sides, in the crossing warning signs for approaching a station
Know and be provided with some equidistant tag lines between line and the crossing stop line, some distances are set on the crossing
Identification point.
A kind of motor vehicle pass through crossing when automatic prompt method, including：
Tracking step：The continuous each motor vehicle tracked into crossing advance notice tag line to crossing, and with
Track enters each pedestrian of crossing；
Slow down and point out step：Determine whether that motor vehicle enters following range, when there is motor vehicle to enter following range, carry
Show reducing speed of motor vehicle, judge whether motor vehicle slows down, the motor vehicle is taken pictures if not slowing down；
Give way prompting step：Judge whether there is walk on the crossing, when pedestrian's direct of travel is away from motor vehicle
When distance is less than setting prompting threshold value, motor vehicle is pointed out to stop after stop line；After motor vehicle crosses stop line, judge motor-driven
Whether car is less than safe distance threshold value with the distance of pedestrian, if being less than, the motor vehicle is taken pictures.
Preferably, in the tracking step, also include by synchronised clock to track pedestrian and motor vehicle carry out together
Step, to improve the precision to velocity measuring.
Preferably, give way in prompting step, when pedestrian's direct of travel is less than setting prompting threshold value away from motor vehicle distance, carry
Show that motor vehicle stops after stop line to specifically include：
If pedestrian is in the front of the motor vehicle, transmission needs the information of parking waiting to Tip element, Tip element
Show that Stop and give way after stop line for motor vehicle；
If pedestrian's direct of travel is close motor vehicle direct of travel, judge whether its distance is pre- less than institute under the conditions of being somebody's turn to do
If threshold value, if it is lower, transmission needs the information of parking waiting to Tip element, Tip element shows motor vehicle after stop line
Stop and give way；
Preferably, slow down in prompting step, judge the process whether motor vehicle slows down, including：
The video tracking element keeps track predicts the motor vehicle of tag line by the crossing,
The data processing unit obtains successively moment of the motor vehicle by some equidistant tag lines；
Obtain time of the motor vehicle by distance between per section of equidistant tag line；
By the change of relatively more described time, whether the speed for judging the motor vehicle successively decreases.
Preferably, also include：Whether tracking street pedestrian has pedestrian in Accreditation Waiting Area, and if any pedestrian, then prompting passes through close
The motor vehicle in the street pedestrian Accreditation Waiting Area track stops after stop line, after motor vehicle crosses stop line, judge motor vehicle with
Whether the distance of pedestrian is less than safe distance threshold value, such as less than, is then taken pictures.
The above-mentioned technical proposal of the present invention has compared to existing technology advantages below,
(1) present invention provide a kind of motor vehicle pass through crossing when automatic prompt system and method, including video with
Track unit, Tip element and data processing unit, when motor vehicle predicts tag line through crossing, carry out deceleration prompting,
If whether pointing out less than setting with distance of the pedestrian on direct of travel when having pedestrian to pass through, and judging that motor vehicle reaches stop line
Threshold value, such as less than predetermined threshold value, then transmission needs the information of parking waiting to Tip element, after motor vehicle crosses stop line,
Judge whether motor vehicle is less than safe distance threshold value with the distance of pedestrian, such as less than, then it is taken pictures, be that follow-up traffic is held
Method provides foundation.The program point out in advance motor vehicle pass through pavement when to be slowed down, meet pedestrian and pass through, can point out automatically
Stop, when can in advance prevent pedestrian to pass through crossing, motor vehicle is wounded the accident of pedestrian, improve pedestrian on crossing
The security of walking.
(2) present invention provide a kind of motor vehicle pass through crossing when automatic prompt system and method, also including synchronization
Clock so that video acquisition subelement and described image recognition and tracking subelement synchronization, raising judge motor vehicle pass through people's row horizontal stroke
The precision whether slowed down during road.
(3) present invention provide a kind of motor vehicle pass through crossing when automatic prompt system and method, by described
Crossing is predicted between tag line and the crossing stop line and is provided with some equidistant tag lines measuring motor vehicle and is
No deceleration, so as to accurately be detected to the speed of the motor vehicle of crossing of passing through.
(4) present invention provide a kind of motor vehicle pass through crossing when automatic prompt system and method, when motor vehicle is got over
After crossing stop line, judge whether motor vehicle is less than safe distance threshold value with the distance of pedestrian, such as less than, then the motor vehicle is carried out
Take pictures,.Judged by analyzing situation, the spacing to crossing between the motor vehicle of stop line and pedestrian is accurately monitored, more
Plus tally with the actual situation.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, the specific embodiment below according to the present invention is simultaneously combined
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 be the motor vehicle of the embodiment of the present invention 1 pass through crossing when automatic prompt system structured flowchart；
Fig. 2 be the motor vehicle of the embodiment of the present invention 2 pass through crossing when automatic prompt system structured flowchart；
Fig. 3 be the motor vehicle of the embodiment of the present invention 2 pass through crossing when automatic prompt method flow chart.
Specific embodiment
Embodiment 1：
The present embodiment provide a kind of motor vehicle pass through crossing when automatic prompt system, as shown in figure 1, being arranged on nothing
On the road of the crossing of Signalized control, including crossing and be arranged on the crossing after crossing stopping
Line, also including video tracking unit, Tip element and the data processing unit for being arranged on crossing, the video tracking element keeps track row
Each pedestrian passed through on the motor vehicle and crossing of Jing crossings.The video tracking unit is by being arranged on crossing
Image tracking system is realizing, including camera and is tracked the software of process to the image that the camera is obtained.
The Tip element is the display screen being arranged on autos only direction, when motor vehicle is predicted through crossing
During tag line, no matter whether indicating reducing speed of motor vehicle have pedestrian on crossing, as long as motor vehicle just should when crossing
The deceleration, in order to avoid pedestrian cannot stop in time when occurring suddenly cause the accident.By the suggesting effect of display screen, can be more preferable
Instruct and point out motor vehicle by correct driving mode during no signal lamp control crossing, improve pedestrian by no signal
Lamp controls the security of crossing.
The data processing unit includes the judgment sub-unit that gives way, and judges whether there is walk on the crossing, such as
There is walk, judge the distance of the pedestrian and the motor vehicle, the direct of travel of pedestrian herein and the distance of motor vehicle
Such as less than predetermined threshold value is referred to, 5 meters of selection in the present embodiment, (threshold value could be arranged to 2-10 rice in other embodiments),
If motor vehicle is less than 5 meters with the distance of pedestrian, data processing unit transmission needs the message of parking waiting to Tip element.
Tip element to be received and can show parking waiting printed words after above-mentioned message, if pedestrian is more than given threshold with motor-driven following distance,
The information of information display screen disappears.The foundation for judging herein be exactly pedestrian on direct of travel with the distance of motor vehicle whether
Less than setting prompting threshold value, if less than prompting motor vehicles parking is then needed pedestrian is avoided.After motor vehicle crosses stop line, sentence
Whether off line motor-car is less than safe distance threshold value with the distance of pedestrian, such as less than, then the motor vehicle is taken pictures.Due to no matter
Pedestrian in the front of motor vehicle or not yet close motor vehicle, if motor vehicle cross it is little with the distance of pedestrian after stop line
In certain safe distance threshold value, then illustrate motor vehicle from pedestrian too close to, be considered as motor vehicle and do not avoid before crossing
Pedestrian, therefore the behavior is captured.When pedestrian has already passed through the track that motor vehicle is travelled, if pedestrian and motor vehicle
Distance it is close when, motor vehicle is not stopped at after crossing stop line, then illustrate that motor vehicle is not avoided yet when pedestrian passes through
Pedestrian, such case is abnormally dangerous, falls within traffic violations, and needs are captured.
Motor vehicle in the present embodiment pass through crossing when the corresponding motor vehicle of automatic prompt system people's row of passing through it is horizontal
Photographic method during road, comprises the steps：
S1, continuous tracking are predicted the motor vehicle of tag line to crossing, and are tracked horizontal into people's row into crossing
Each pedestrian in road.By being arranged on each pedestrian and people's row horizontal stroke of passing through of the image tracking system at crossing to crossing
The motor vehicle in road is tracked.It is capable of achieving by being arranged on a camera of crossing.
S2, when motor vehicle through crossing predict tag line when, display screen indicating reducing speed of motor vehicle.No matter crossing
On whether have pedestrian, as long as motor vehicle just should slow down when crossing, in order to avoid pedestrian cannot stop in time when occurring suddenly
Car causes the accident.Therefore, as long as motor vehicle have passed through the advance notice tag line of the segment distance of stop line one after crossing, show
Screen will indicating reducing speed of motor vehicle.Judge whether motor vehicle slows down, the motor vehicle is taken pictures if not slowing down.
S3, judge whether there is walk on the crossing, if any walk, pedestrian described in system automatic decision with
The distance between described motor vehicle, such as less than predetermined threshold value 5-10 rice, then transmission needs the message of parking waiting to display screen, shows
Show screen display Stop and give way printed words；
After motor vehicle is not observed information and crosses stop line, judge motor vehicle with the distance of pedestrian whether less than peace
Such as 2 meters of full distance threshold value, such as less than, then takes pictures to the motor vehicle.Can be to pedestrian and motor-driven by image tracking system
Car is effectively recognized, and the automotive number plate of avoidance pedestrian of not stopped by above-mentioned judgement, is subsequently to traffic offence
Behavior carries out punishment and provides foundation.
Motor vehicle in the present embodiment pass through crossing when automatic prompt system and method, can be horizontal to people's row of passing through
The vehicle in road is effectively pointed out, and points out it to slow down, stop, and when motor vehicle predicts tag line through crossing, is carried out
Slow down and point out, if having pedestrian to pass through crossing, the prompting for whether needing parking waiting is provided according to the distance of pedestrian and car,
Can automatically point out to stop, after motor vehicle crosses stop line, judge motor vehicle with the distance of pedestrian whether less than safe distance threshold
Value, such as less than, then takes pictures to the motor vehicle, and when pedestrian can be prevented to pass through crossing, motor vehicle is wounded the thing of pedestrian
Therefore, improve the security that pedestrian walks on crossing.
Embodiment 2：
There is provided in the present embodiment a kind of motor vehicle pass through crossing when automatic prompt system, as shown in Fig. 2 the system
It is arranged on crossing but is not provided with the road of traffic lights, including crossing and is arranged on before crossing
Crossing stop line, crossing both sides are provided with street pedestrian Accreditation Waiting Area, be provided with after crossing stop line
Crossing predicts tag line, is provided between crossing advance notice tag line and the crossing stop line some
Equidistant tag line, is also provided with some range marker points on the crossing.
The automatic prompt system also includes being arranged on video tracking unit, display screen and the data processing unit at crossing, depending on
Frequency tracking subelement includes video acquisition subelement and image recognition tracking subelement, and the video acquisition subelement includes shooting
Head, for gathering the pass through motor vehicle of crossing and the video image of pedestrian, described image recognition and tracking subelement identification institute
State the image that video acquisition subelement is collected, and recognize the image of motor vehicle therein and pedestrian, and to the motor vehicle and
The movement locus of pedestrian is tracked.Additionally, also include synchronised clock, for the video acquisition subelement and described image
Recognition and tracking subelement synchronizes process.To improve the precision to velocity measuring.
The Tip element is the display screen being arranged on autos only direction, when motor vehicle is predicted through crossing
During tag line, indicating reducing speed of motor vehicle or Stop and give way after motor vehicle stops, showing motor vehicle dwell time.By display screen
Suggesting effect, can preferably instruct and point out motor vehicle correct driving mode, improve the security of road.
Data processing unit includes giving way outside judgment sub-unit, also including deceleration judgment sub-unit, for judging the machine
Whether motor-car slows down when predicting tag line to the crossing stop line by crossing, does not such as slow down, then motor-driven to this
Car is taken pictures.Motor vehicle can be passed through by the program crossing when speed effectively supervised, if not according to rule
It is fixed to slow down, then it can be punished in accordance with the law, law enforcement dynamics is increased, improve current security.
Wherein, the judgment sub-unit that gives way is included with lower module：
First judge module：If pedestrian is in the front of the motor vehicle, transmission needs the message of parking waiting to prompting
Unit, Tip element shows that Stop and give way；
Second judge module：If pedestrian's direct of travel is close motor vehicle direct of travel, judge whether its distance is little
Institute's predetermined threshold value under the conditions of this, if it is lower, transmission needs the message of parking waiting to Tip element, Tip element shows and stops
Car gives way；
In other implementations, the 4th judge module can also be included, judges the street pedestrian of crossing both sides
Whether Accreditation Waiting Area has pedestrian, if any pedestrian, points out the motor vehicles parking passed through in the street pedestrian Accreditation Waiting Area track to wait,
If not stopping, taken pictures.
Wherein, deceleration judgment sub-unit is included with lower module：
Tracking module：The video tracking element keeps track predicts the motor vehicle of tag line by the crossing,
Moment extraction module：Moment of the motor vehicle by some equidistant tag lines is obtained successively；
Time extraction module：Obtain time of the motor vehicle by distance between per section of equidistant tag line；
Velocity variations module：By the change of relatively more described time, whether the speed for judging the motor vehicle successively decreases.
The corresponding motor vehicle of automatic prompt system in the present embodiment pass through crossing when reminding method, such as Fig. 3 institutes
Show, including following process：
S1, continuous tracking pass through crossing motor vehicle and crossing on the pedestrian that passes through, that is, track into
Enter each chassis that crossing predicts tag line to crossing, track street pedestrian Accreditation Waiting Area and into the every of crossing
One people.
S2, when motor vehicle is travelled through the crossing close crossing of advance notice tag line, prompting is motor-driven in display screen
Car slows down, no matter whether there is pedestrian on crossing, the vehicle of conduct crossing is required for slowing down, it is to avoid pedestrian occurs suddenly
Cannot stop in crossing causes accident to occur.
In addition to above-mentioned retrieval is pointed out, can also determine whether that the motor vehicle predicts tag line to institute by crossing
Whether slow down when stating crossing stop line, such as do not slow down, then the motor vehicle is taken pictures, judge that the motor vehicle passes through institute
The process whether slowed down when stating crossing, including：
S21：The video tracking element keeps track predicts the motor vehicle of tag line by the crossing,
S22：The data processing unit obtain successively the motor vehicle by some equidistant tag lines when
Carve；
S23：Obtain time of the motor vehicle by distance between per section of equidistant tag line；
S24：By the change of relatively more described time, whether the speed for judging the motor vehicle successively decreases.
Herein, it is some etc. by being provided between crossing advance notice tag line and the crossing stop line
Measure whether motor vehicle slows down away from tag line, so as to effectively be supervised to the speed of the motor vehicle of crossing of passing through
S3, judge whether there is walk on the crossing, if any walk, then judge the pedestrian with it is described
The distance between motor vehicle, such as less than predetermined threshold value, then transmission needs the message of parking waiting to Tip element, and Tip element shows
Show that Stop and give way, point out motor vehicle to stop after stop line；
If S31, pedestrian are in the front of the motor vehicle, transmission needs the message of parking waiting to Tip element, points out
Unit shows that Stop and give way.
If pedestrian has gone to the front in motor vehicle place track, motor vehicle must be parked in after stop line and wait,
As do not waited, then traffic regulations are violated, evidence obtaining of taking pictures is carried out to it, subsequently punished.
If S32, pedestrian's direct of travel are close motor vehicle direct of travels, under the conditions of judging its distance whether less than being somebody's turn to do
Institute's predetermined threshold value, if it is lower, transmission needs the message of parking waiting to Tip element, Tip element shows that motor vehicle is stopping
Stop and give way after line.
If pedestrian not yet enters the runway that motor vehicle is located, but to motor vehicle traveling direction running, if now
From the track farther out, then vehicle can pass through pedestrian, if close to vehicle, vehicle then should after stop line parking waiting.This
When, a threshold value, such as 3-9 rice can be set.The distance in one or two track can also be set used as threshold value, that is to say, that such as
When fruit vehicle reaches stop line, there is pedestrian in first lane, then the motor vehicle in second lane does not allow to pass through, and should stop
Treat, and the motor vehicle P Passable in third lane.So, just according to distance distinguish whether need parking waiting, improve
The traffic efficiency of road and ensure that traffic safety.
S4, after motor vehicle crosses stop line, judge the distance of motor vehicle and pedestrian whether less than safe distance threshold value, such as
It is less than, then the motor vehicle is taken pictures.
Above-mentioned judgment mode can to greatest extent improve traffic volume under the premise that security is guaranteed.
Whether in this step, can also determine whether the street pedestrian Accreditation Waiting Area of crossing both sides has pedestrian, if any
Pedestrian, then point out the vehicle parking travelled in close track to wait by display screen, and judgement is passed through near the street pedestrian etc.
Whether the motor vehicle for treating area track crosses stop line, if crossing, is taken pictures.As long as pedestrian has pedestrian in Accreditation Waiting Area, it is located at
When the motor line in track beside pedestrian Accreditation Waiting Area sails to stop line, it should avoid pedestrian and allow it to pass through, and for away from
Vehicle in other tracks in the track, P Passable which also improves traffic efficiency.
Additionally, some range marker points can also be arranged on the crossing, given way by these range marker points
The motor vehicle of Jing needs parking waiting when knowing distance how far, and such as these range marker points can be lane line, and such as motor vehicle exists
When third lane is travelled and reaches stop line, if pedestrian is introduced into second lane, the motor vehicle can slow down by pavement,
If in second lane and when moving towards third lane, the motor vehicle then cannot pass through stop line to pedestrian, need to stop after stop line
Car is waited.Can be whether motor vehicle of passing through the foundation to be supplied such as needs to be parked in after stop line by the range marker point.Herein
Range marker point can also be other objects etc. arranged on road, as long as range marker can be played a part of.
The motor vehicle that the present embodiment is provided pass through crossing when automatic prompt system and method, including video tracking list
Unit, Tip element and data processing unit, when motor vehicle predicts tag line through crossing, carry out deceleration prompting, if having
Pedestrian passes through, and sets prompting threshold with whether distance of the pedestrian on direct of travel is less than when judging that motor vehicle reaches stop line
Value, such as less than predetermined threshold value, then transmission needs the information of parking waiting to Tip element, after motor vehicle crosses stop line, sentences
Whether off line motor-car is less than safe distance threshold value with the distance of pedestrian, such as less than, then the motor vehicle is taken pictures.For follow-up friendship
Logical law enforcement provides foundation.The program point out in advance motor vehicle pass through pavement when to be slowed down, meet pedestrian and pass through, can automatically
Prompting is stopped, and when pedestrian can be prevented to pass through crossing, motor vehicle is wounded the accident of pedestrian, improves pedestrian on crossing
The security of walking.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or with reference to the reality in terms of software and hardware
Apply the form of example.And, the present invention can be adopted and wherein include the computer of computer usable program code at one or more
The computer program implemented in usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) is produced
The form of product.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program
Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram
The combination of journey and/or square frame and flow chart and/or the flow process in block diagram and/or square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of specifying in present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy
In determining the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function of specifying in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Claims (8)
1. a kind of motor vehicle pass through crossing when automatic prompt system, including crossing and be arranged on after crossing
Crossing stop line, be provided with after crossing stop line crossing advance notice tag line, it is characterised in that also wrap
Include：
Video tracking unit：Tracking into crossing predict tag line to crossing each motor vehicle, and track into
Enter each pedestrian of crossing；
Tip element, is arranged on autos only direction, when motor vehicle enters following range, indicating reducing speed of motor vehicle or stops
Car gives way；
Data processing unit includes give way judgment sub-unit and deceleration judgment sub-unit, wherein
It is described to give way judgment sub-unit for judging whether there is walk on the crossing, if any walk, work as row
People's direct of travel is less than when setting prompting threshold value away from motor vehicle distance, makes Tip element prompting motor vehicle stop after stop line,
After motor vehicle crosses stop line, judge whether motor vehicle is less than safe distance threshold value with the distance of pedestrian, such as less than, then to this
Motor vehicle is taken pictures；
Whether deceleration judgment sub-unit is used to slow down when judging that crossing predicts tag line to the crossing stop line, such as
Do not slow down, then the motor vehicle is taken pictures；Wherein, it is described judge motor vehicle whether slow down including：The video tracking unit
The motor vehicle of tag line is predicted in tracking by the crossing, if the data processing unit obtains successively the motor vehicle and passes through
Do the moment of equidistant tag line；Obtain time of the motor vehicle by distance between per section of equidistant tag line；By relatively more described
Whether the change of time, the speed for judging the motor vehicle successively decreases.
2. system according to claim 1, it is characterised in that the video tracking subelement includes video acquisition subelement
Subelement is tracked with image recognition, the video acquisition subelement includes camera, for gathering the motor-driven of crossing of passing through
Car and the video image of pedestrian, described image recognition and tracking subelement recognizes the image that the video acquisition subelement is collected,
And the image of motor vehicle therein and pedestrian is recognized, and the movement locus to the motor vehicle and pedestrian is continuously tracked.
3. system according to claim 2, it is characterised in that also including synchronised clock, for video acquisition
Unit and described image recognition and tracking subelement synchronize process, to improve the precision to velocity measuring.
4. system according to claim 3, it is characterised in that also including street pedestrian for being arranged on crossing both sides etc.
Area is treated, is predicted between tag line and the crossing stop line in the crossing and is provided with some equidistant tag lines,
Some range marker points are set on the crossing.
5. a kind of motor vehicle for described in any one of claim 1-4 pass through crossing when automatic prompt system it is automatic
Reminding method, it is characterised in that include：
Tracking step：Continuous tracking predicts each motor vehicle of tag line to crossing into crossing, and track into
Enter each pedestrian of crossing；
Slow down and point out step：Determine whether that motor vehicle enters following range, when there is motor vehicle to enter following range, prompt machine
Motor-car slows down, and judges whether motor vehicle slows down, and the motor vehicle is taken pictures if not slowing down；Wherein, the judgement motor vehicle
Whether deceleration includes：The video tracking element keeps track predicts the motor vehicle of tag line, the data by the crossing
Processing unit obtains successively moment of the motor vehicle by some equidistant tag lines；The motor vehicle is obtained by per section of equidistant mark
The time of distance between line；By the change of relatively more described time, whether the speed for judging the motor vehicle successively decreases；
Give way prompting step：Judge whether there is walk on the crossing, when pedestrian's direct of travel is away from motor vehicle distance
During less than setting prompting threshold value, motor vehicle is pointed out to stop after stop line；After motor vehicle crosses stop line, judge motor vehicle with
Whether the distance of pedestrian is less than safe distance threshold value, if being less than, the motor vehicle is taken pictures.
6. method according to claim 5, it is characterised in that in the tracking step, also include by synchronised clock
Pedestrian and motor vehicle to tracking synchronizes, to improve the precision to velocity measuring.
7. method according to claim 6, it is characterised in that give way in prompting step, when pedestrian's direct of travel is away from motor-driven
When car distance is less than setting prompting threshold value, points out motor vehicle to stop after stop line and specifically include：
If pedestrian is in the front of the motor vehicle, transmission needs the information of parking waiting to Tip element, and Tip element shows
Stop and give way after stop line for motor vehicle；
If pedestrian's direct of travel is close motor vehicle direct of travel, judge its distance whether less than the default threshold of institute under the conditions of being somebody's turn to do
Value, if it is lower, transmission needs the information of parking waiting to Tip element, Tip element shows that motor vehicle stops after stop line
Give way.
8. method according to claim 7, it is characterised in that also include：Whether tracking street pedestrian has row in Accreditation Waiting Area
People, if any pedestrian, then the motor vehicle that prompting is passed through near the street pedestrian Accreditation Waiting Area track stops after stop line, works as motor vehicle
After crossing stop line, judge whether motor vehicle is less than safe distance threshold value with the distance of pedestrian, such as less than, then taken pictures.
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