CN109118793A - Wagon flow control method and device - Google Patents
Wagon flow control method and device Download PDFInfo
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- CN109118793A CN109118793A CN201810983308.0A CN201810983308A CN109118793A CN 109118793 A CN109118793 A CN 109118793A CN 201810983308 A CN201810983308 A CN 201810983308A CN 109118793 A CN109118793 A CN 109118793A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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Abstract
The present invention provides a kind of wagon flow control method and device.The described method includes: obtaining the traveling duration of same vehicle in monitoring area；The monitoring area is the intersecting area of specified crossing all directions road；If same vehicle travels duration more than given threshold, the display duration of the synchronous adjustment each crossing indicator light adjacent with the specified crossing, to reduce the wagon flow of the specified crossing all directions in the monitoring area.The traveling duration that the embodiment of the present invention passes through same vehicle in acquisition monitoring area, synchronous adjustment specifies the display duration at crossing and adjacent each crossing indicator light when the traveling duration of same vehicle is too long in monitoring area, vehicle density in specified crossing all directions adjustable in this way, to reduce the wagon flow of all directions.As it can be seen that the invention is simple and feasible, the indicator light synchronous coordination at multiple crossings can quickly adjust vehicle on road and be distributed, and guarantee each crossing without congestion phenomenon, thus the phenomenon that solving or alleviating congestion in road.
Description
Technical field
The present invention relates to technical field of information processing more particularly to a kind of wagon flow control method and device.
Background technique
With the development of economy, more and more families can all buy family car, have great convenience for the user in this way
Trip.But more and more vehicle drivings are on road, it is possible to lead to congestion in road, such as crossroad, high speed outlet, small
The positions such as area doorway, influence travel speed.By taking crossroad as an example, in the vehicle driving of east-west direction, since front refers to
Show that lamp is red light, this crossing is green light, and vehicle is caused to concentrate on the intersecting area of this crossroad.In the north and south of this crossroad
When the indicator light in direction is green light, the vehicle for concentrating on the east-west direction of intersecting area can block the vehicle traveling of North and South direction,
Lead to the increasingly congestion at this crossing.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of wagon flow control method and device, for adjusting road
The density of upper wagon flow, to solve the problems, such as or alleviate congestion in road.
In a first aspect, the embodiment of the invention provides a kind of wagon flow control methods, which comprises
Obtain the traveling duration of same vehicle in monitoring area；The monitoring area is the phase of specified crossing all directions road
Hand over region；
If same vehicle travels duration more than given threshold, synchronous adjustment and the specified crossing in the monitoring area
The display duration of adjacent each crossing indicator light, to reduce the wagon flow of the specified crossing all directions.
Optionally, the display duration of the synchronous adjustment each crossing indicator light adjacent with the specified crossing includes:
Obtain the specified crossing and its adjacent each crossing vehicle density in different directions and current aobvious of indicator light
Show duration；
It is for adjacent each crossing, the current display duration input of the vehicle density of different directions and indicator light is described each
The corresponding vehicle density prediction algorithm in crossing predicts the vehicle density in direction corresponding with the specified crossing；
The standard vehicle density of vehicle density and the specified crossing present period that adjacent each crossing is predicted
It is input to the corresponding vehicle density prediction algorithm in the specified crossing, predicts the specified crossing all directions in subsequent time period
Vehicle density；
The vehicle density of the specified crossing all directions and display duration are separately input into the duration adjustment at corresponding crossing
Algorithm obtains the display duration of each crossing indicator light in subsequent period.
Optionally, the standard vehicle density obtains in the following manner:
It obtains and is recorded with the multiple historical traffic for being in same time period more than given threshold；The historical traffic record to
It less include: vehicle density, display duration, the traveling duration in monitoring area；
Reject the historical traffic record that setting condition is not met in the multiple historical traffic record；It wherein imposes a condition and is
Traveling duration of the same vehicle in the monitoring area is less than given threshold；
Each historical traffic, which is obtained, according to remaining historical traffic record records corresponding vehicle density variance；
Determine that the corresponding vehicle density of the smallest vehicle density variance is standard vehicle density.
Optionally, the method also includes:
Obtain the wagon flow length between the specified crossing and the adjacent intersection of vehicle heading；
According to the corresponding relationship of preset wagon flow length and duration matching factor, when being determined according to the wagon flow length
Long matching factor；
The display duration of the specified crossing and adjacent intersection indicator light is adjusted based on the duration matching factor.
Second aspect, the embodiment of the invention provides a kind of wagon flow control device, described device includes:
Driving status obtains module, for obtaining the traveling duration of same vehicle in monitoring area；The monitoring area is
The intersecting area of specified crossing all directions road；
Show that duration adjusts module, for travelling duration in the monitoring area more than given threshold in same vehicle
When, the display duration of the synchronous adjustment each crossing indicator light adjacent with the specified crossing, to reduce the specified crossing each side
To wagon flow.
Optionally, display duration adjustment module includes:
Duration acquiring unit is shown, for obtaining the wagon flow of the specified crossing and its adjacent each crossing in different directions
Density and the current display duration of indicator light；
First predicting unit, for being directed to adjacent each crossing, by current aobvious of the vehicle density of different directions and indicator light
Show the corresponding vehicle density prediction algorithm in duration input each crossing, predicts direction corresponding with the specified crossing
Vehicle density；
When the second predicting unit, vehicle density for predicting adjacent each crossing and the current specified crossing
The standard vehicle density of section is input to the corresponding vehicle density prediction algorithm in the specified crossing, predicts institute in subsequent time period
State the vehicle density of specified crossing all directions；
Duration adjustment unit is shown, for inputting the vehicle density of the specified crossing all directions and display duration respectively
To the duration adjustment algorithm at corresponding crossing, the display duration of each crossing indicator light in subsequent period is obtained.
Optionally, second predicting unit includes:
Historical record obtains subelement, the multiple historical traffic for obtaining with being in same time period more than given threshold
Record；The historical traffic record includes at least: vehicle density, display duration, the traveling duration in monitoring area；
Historical record rejects subelement, for rejecting the history for not meeting setting condition in the multiple historical traffic record
Traffic records；Wherein impose a condition is that traveling duration of the same vehicle in the monitoring area is less than given threshold；
Variance obtains subelement, records corresponding wagon flow for obtaining each historical traffic according to remaining historical traffic record
Density variance；
Standard density determines subelement, for determining that the corresponding vehicle density of the smallest vehicle density variance is standard wagon flow
Density.
Optionally, described device further include:
Wagon flow length obtains module, for obtaining the vehicle between the specified crossing and the adjacent intersection of vehicle heading
Flow length；
Matching factor determining module, for the corresponding relationship according to preset wagon flow length and duration matching factor,
Duration matching factor is determined according to the wagon flow length；
Show that duration adjusts module, for referring to based on the duration matching factor adjustment specified crossing and adjacent intersection
Show the display duration of lamp.
As shown from the above technical solution, the embodiment of the present invention passes through the traveling duration for obtaining same vehicle in monitoring area,
Synchronous adjustment specifies the display at crossing and adjacent each crossing indicator light when the traveling duration of same vehicle is too long in monitoring area
Duration, the vehicle density in specified crossing all directions adjustable in this way, to reduce the wagon flow of all directions.As it can be seen that of the invention
Simple and easy, the indicator light synchronous coordination at multiple crossings can quickly adjust vehicle on road and be distributed, guarantee each crossing without congestion
Phenomenon, thus the phenomenon that solving or alleviating congestion in road.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is a kind of method flow schematic diagram of wagon flow control method provided in an embodiment of the present invention；
Fig. 2 is the method flow schematic diagram of another wagon flow control method provided in an embodiment of the present invention；
Fig. 3 is the method flow schematic diagram of another wagon flow control method provided in an embodiment of the present invention；
Fig. 4 is the method flow schematic diagram of another wagon flow control method provided in an embodiment of the present invention；
Fig. 5~Fig. 8 is a kind of block diagram of wagon flow control device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
With the development of economy, more and more families can all buy family car, have great convenience for the user in this way
Trip.But more and more vehicle drivings are on road, it is possible to lead to congestion in road, such as crossroad, high speed outlet, small
The positions such as area doorway, influence travel speed.By taking crossroad as an example, in the vehicle driving of east-west direction, since front refers to
Show that lamp is red light, this crossing is green light, and vehicle is caused to concentrate on the intersecting area of this crossroad.In the north and south of this crossroad
When the indicator light in direction is green light, the vehicle for concentrating on the east-west direction of intersecting area can block the vehicle traveling of North and South direction,
Lead to the increasingly congestion at this crossing.
To solve or alleviating the above problem, the embodiment of the invention provides a kind of wagon flow control method, Fig. 1 is the present invention
A kind of method flow schematic diagram for wagon flow control method that embodiment provides.The wagon flow control method can be by each crossing indicator light
In processor or the processor that is separately provided execute.It for convenience of description, will be with the processing of indicator light in subsequent each embodiment
It is described for device.Referring to Fig. 1, a kind of wagon flow control method includes:
101, obtain the traveling duration of same vehicle in monitoring area；The monitoring area is specified crossing all directions road
Intersecting area；
In the present embodiment, image capture device is arranged in the predeterminated position at specified crossing, available in monitoring area
Image.Wherein, monitoring area is the intersecting area of specified crossing all directions road.For example, in crossroad in each direction
The region that pavement (or extended line) surrounds.
In the present embodiment, image capture device acquires image according to the setting period, and is sent to processor.Processor according to
Image processing algorithm in the related technology obtains the vehicle in image, and identifies the license plate number of each vehicle.Setting the period can be with
For several milliseconds, number microsecond etc., can be configured according to concrete scene,
Later, processor tracks traveling duration of each vehicle in monitoring area.
102, if same vehicle travels duration more than given threshold in the monitoring area, synchronous adjustment is specified with described
The display duration of the adjacent each crossing indicator light in crossing, to reduce the wagon flow of the specified crossing all directions.
In the present embodiment, processor compares same trolley and travels whether duration is more than given threshold in monitoring area.
When being less than given threshold, then return step 101, when being more than given threshold, then synchronous adjustment specifies crossing, specified with this
The display duration of the adjacent each crossing indicator light in crossing, to reduce the wagon flow of specified crossing all directions.
Wherein given threshold refers to, in the case where not congestion, vehicle passes through the monitoring area according to the speed of regulation
Duration, such as regulation speed can be 30~60,000 ms/h, vehicles duration.The given threshold can be according to specific field
Scape is configured.
It should be noted that specified crossing, adjacent each crossing refer to the section for being provided with indicator light.Wherein adjacent intersection is
Refer to, one of direction along specified crossing is advanced, and first section i.e. adjacent intersection with indicator light is encountered.
In one embodiment, the display duration of the processor synchronous adjustment each crossing indicator light adjacent with the specified crossing
Mode may include:
Mode one, processor obtain the driving direction of vehicle in monitoring area, then adjust the crossing all directions indicator light
Display duration.For example, the vehicle of east-west direction low running speed or stop in monitoring area in crossroad, then processor
The display duration of green light on east-west direction can be shortened, extend the display duration of green light in North and South direction.By several display weeks
After phase (green light and red light be a display cycle), due to specifying junction ahead indicator light in crossing on east-west direction
Green light shows that duration is greater than the display duration of specified crossing indicator light, therefore the wagon flow length between specified crossing and junction ahead
It can shorten, vehicle can be crossed quickly in green light on such east-west direction.
Certainly, Image Acquisition can also be added in the predeterminated position between specified crossing and junction ahead in the present embodiment to set
It is standby, processor can be triggered when in the viewfinder range of image capture device without stoppage of vehicle.Processor is extensive according to triggering command
Display duration before multiple indicator light.
Mode two, referring to fig. 2, processor obtains the vehicle density specified at crossing in different directions first and indicator light is worked as
Preceding display duration, and obtain adjacent with specified crossing each crossing vehicle density in different directions and indicator light currently
Show duration (corresponding step 201).
Then, for adjacent each crossing, the current display duration of the vehicle density of different directions and indicator light is inputted
To the corresponding vehicle density prediction algorithm in the crossing, set out in advance and specified crossing corresponding direction by the vehicle density prediction algorithm
Vehicle density (corresponding step 202).
Wherein, vehicle density can be by being arranged in image in the image acquisition device viewfinder range at each crossing, by this
The vehicle fleet size in specified crossing direction is sailed in the processor unit of account time at crossing.It is, of course, also possible to be arranged at each crossing
The equipment such as ultrasonic equipment or laser, processor determine vehicle density according to the number of pulses detected, and technical staff can be with
It is configured according to concrete scene, the present invention is not construed as limiting.
Vehicle density prediction algorithm can be neural network model, and a large amount of historical traffics record for obtaining this crossing in advance is made
For training sample, wherein historical traffic records at least vehicle density, display duration, the traveling duration in monitoring area.Processing
The device repetition training neural network model allows neural network model according to the display duration prediction of vehicle density and indicator light
The vehicle density of subsequent time period.When predicting that the vehicle density of subsequent time period meets expected density, deconditioning.It is expected that close
It can be to keep the crossing Vehicle Speed in degree, and the density maxima of congestion is not caused.
Later, the standard wagon flow of processor predicts adjacent each crossing vehicle density and specified crossing present period is close
Degree is input in the corresponding vehicle density prediction algorithm in specified crossing, is predicted in subsequent time period by vehicle density prediction algorithm
Vehicle density (the corresponding step 203) of specified crossing all directions.
It will be appreciated that before predicting the vehicle density for specifying crossing all directions in subsequent time period, processing
Device can obtain standard vehicle density in the following manner, referring to Fig. 3, comprising:
Processor, which is obtained, records (corresponding step with the multiple historical traffic for being in same time period more than given threshold
301), for example, it is morning 7:00~7 that same vehicle travels duration more than the given threshold corresponding period in monitoring area:
30, then the historical traffic record of each day morning 7:00~7:30 before obtaining, the multiple historical traffic record obtained in this way can
The practical vehicle density at the specified crossing of reaction more precisely, is conducive to the accuracy for improving control.Wherein, the historical traffic note
Record includes at least: vehicle density, display duration, the traveling duration in monitoring area.
Processor rejects historical traffic record (the corresponding step that setting condition is not met in multiple historical traffic record
302)；Wherein impose a condition is that traveling duration of the same vehicle in the monitoring area is less than given threshold.In the present embodiment
The historical traffic record that setting condition is not met by rejecting, is conducive to the accuracy for improving calculated result.
Processor records corresponding vehicle density variance according to each historical traffic of remaining historical traffic record acquisition and (corresponds to
Step 303).Wherein, variance calculation method can be with reference to calculation in the related technology, and details are not described herein.
The corresponding vehicle density of the smallest vehicle density variance is determined as standard vehicle density (corresponding step by processor
304)。
Finally, processor by the vehicle density of specified crossing all directions and display duration be separately input into corresponding crossing when
Long adjustment algorithm obtains the display duration of each crossing indicator light in subsequent period, when then adjusting display by each crossing indicator light
It is long.
The case where specified crossing is a crossing is only described in the embodiment of the present invention.It will be appreciated that above-mentioned wagon flow control
Method processed can should be in the processor at all crossings.Corresponding crossing, processor are triggered when the case where congestion occurs in crossing
The vehicle density at the crossing (becoming specified crossing at this time) is adjusted.As it can be seen that multiple by synchronous coordination in the present embodiment
The wagon flow distribution of the indicator light at crossing, the specified crossing of equilibrium and adjacent intersection, to solve gathering around for specified crossing or adjacent intersection
Stifled problem.
To solve or alleviating the above problem, the embodiment of the invention also provides a kind of wagon flow control method, Fig. 4 is this hair
A kind of method flow schematic diagram for wagon flow control method that bright embodiment provides.Referring to fig. 4, a kind of wagon flow control method includes:
401, obtain the traveling duration of same vehicle in monitoring area；The monitoring area is specified crossing all directions road
Intersecting area.
Step 401 and the specific method of step 101 are consistent with principle, and detailed description please refers to the correlation of Fig. 1 and step 101
Content, details are not described herein again.
402, if same vehicle travels duration more than given threshold in the monitoring area, synchronous adjustment is specified with described
The display duration of the adjacent each crossing indicator light in crossing, to reduce the wagon flow of the specified crossing all directions
Step 402 and the specific method of step 101 are consistent with principle, and detailed description please refers to the correlation of Fig. 1 and step 101
Content, details are not described herein again.
403, obtain the wagon flow length between the specified crossing and the adjacent intersection of vehicle heading.
In the present embodiment, image capture device can also be using the figure of road on except monitoring area and vehicle front truck direction
Picture.For example, processor can add range marker on road, virtual range marker can also be added in the picture.Processing
Device identifies the distance between wagon flow tail portion and monitoring area in image, then according to road between specified crossing and junction ahead
Actual distance calculation goes out wagon flow length.
404, it is true according to the wagon flow length according to the corresponding relationship of preset wagon flow length and duration matching factor
Periodically long matching factor.
In the present embodiment, processor determines duration matching factor according to wagon flow length.
It will be appreciated that processor obtains a large amount of historical traffic data in advance, then neural network model is instructed
Practice, keep the neural network model only more sensitive to wagon flow length and duration matching factor, specific training method is no longer detailed herein
It states.
405, the display duration of the specified crossing and adjacent intersection indicator light is adjusted based on the duration matching factor.
In the present embodiment, processor is readjusted based on the product of the current display duration of indicator light and duration matching factor
The display duration of indicator light.I.e. after the indicator light adjustment display duration of adjacent intersection, indicator light of the processor to specified crossing
Make further corrdinated adjustment, matches the vehicle density between specified crossing and adjacent intersection more.
The embodiment of the invention also provides a kind of wagon flow control device, Fig. 5 is a kind of wagon flow provided in an embodiment of the present invention
The block diagram of control device.Referring to Fig. 5, a kind of wagon flow control device includes:
It travels duration and obtains module 501, for obtaining the traveling duration of same vehicle in monitoring area；The monitoring area
For the intersecting area for specifying crossing all directions road；
It shows that duration adjusts module 502, is more than setting threshold for travelling duration in the monitoring area in same vehicle
When value, the display duration of the synchronous adjustment each crossing indicator light adjacent with the specified crossing is each to reduce the specified crossing
The wagon flow in direction.
The embodiment of the invention also provides a kind of wagon flow control device, Fig. 6 is a kind of wagon flow provided in an embodiment of the present invention
The block diagram of control device.Referring to Fig. 6, on the basis of wagon flow control device shown in Fig. 5, display duration adjustment module 502 includes:
Duration acquiring unit 601 is shown, for obtaining the specified crossing and its adjacent each crossing in different directions
Vehicle density and the current display duration of indicator light；
First predicting unit 602, for being directed to adjacent each crossing, the vehicle density of different directions and indicator light is current
It shows the corresponding vehicle density prediction algorithm in duration input each crossing, predicts direction corresponding with the specified crossing
Vehicle density；
Second predicting unit 603, vehicle density and the specified crossing for predicting adjacent each crossing are worked as
The standard vehicle density of preceding period is input to the corresponding vehicle density prediction algorithm in the specified crossing, predicts subsequent time period
The vehicle density of the interior specified crossing all directions；
Duration adjustment unit 604 is shown, for distinguishing the vehicle density of the specified crossing all directions and display duration
It is input to the duration adjustment algorithm at corresponding crossing, obtains the display duration of each crossing indicator light in subsequent period.
The embodiment of the invention also provides a kind of wagon flow control device, Fig. 7 is a kind of wagon flow provided in an embodiment of the present invention
The block diagram of control device.Referring to Fig. 7, on the basis of wagon flow control device shown in Fig. 6, second predicting unit 603 includes:
Historical record obtains subelement 701, the multiple history for obtaining with being in same time period more than given threshold
Traffic records；The historical traffic record includes at least: vehicle density, display duration, the traveling duration in monitoring area；
Historical record rejects subelement 702, does not meet setting condition for rejecting in the multiple historical traffic record
Historical traffic record；Wherein impose a condition is that traveling duration of the same vehicle in the monitoring area is less than given threshold；
Variance obtains subelement 703, corresponding for being recorded according to each historical traffic of remaining historical traffic record acquisition
Vehicle density variance；
Standard density determines subelement 704, for determining that the corresponding vehicle density of the smallest vehicle density variance is standard
Vehicle density.
The embodiment of the invention also provides a kind of wagon flow control device, Fig. 8 is a kind of wagon flow provided in an embodiment of the present invention
The block diagram of control device.Referring to Fig. 8, on the basis of wagon flow control device shown in Fig. 5, a kind of wagon flow control device 500 is also wrapped
It includes:
Wagon flow length obtains module 801, for obtaining between the specified crossing and the adjacent intersection of vehicle heading
Wagon flow length；
Matching factor determining module 802, for being closed according to preset wagon flow length and the corresponding of duration matching factor
System, determines duration matching factor according to the wagon flow length；
Show that duration adjusts module 803, for adjusting the specified crossing and adjacent road based on the duration matching factor
The display duration of mouth indicator light.
It should be noted that wagon flow control device provided in an embodiment of the present invention and above-mentioned wagon flow control method are an a pair
The relationship answered, the implementation detail of the above method are equally applicable to above-mentioned apparatus, and the embodiment of the present invention no longer carries out above system
It is described in detail.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can be with
It practices without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of wagon flow control method, which is characterized in that the described method includes:
Obtain the traveling duration of same vehicle in monitoring area；The monitoring area is the intersection of specified crossing all directions road
Domain；
If same vehicle travels duration more than given threshold in the monitoring area, synchronous adjustment is adjacent with the specified crossing
Each crossing indicator light display duration, to reduce the wagon flow of the specified crossing all directions.
2. wagon flow control method according to claim 1, which is characterized in that synchronous adjustment is adjacent with the specified crossing
The display duration of each crossing indicator light includes:
When obtaining the specified crossing and its adjacent each crossing vehicle density in different directions and the current display of indicator light
It is long；
For adjacent each crossing, the current display duration of the vehicle density of different directions and indicator light is inputted into each crossing
Corresponding vehicle density prediction algorithm predicts the vehicle density in direction corresponding with the specified crossing；
The standard vehicle density of vehicle density and the specified crossing present period that adjacent each crossing is predicted inputs
To the corresponding vehicle density prediction algorithm in the specified crossing, the vehicle of the specified crossing all directions in subsequent time period is predicted
Current density；
The vehicle density of the specified crossing all directions and display duration are separately input into the duration adjustment algorithm at corresponding crossing,
Obtain the display duration of each crossing indicator light in subsequent period.
3. wagon flow control method according to claim 2, which is characterized in that the standard vehicle density is in the following manner
It obtains:
It obtains and is recorded with the multiple historical traffic for being in same time period more than given threshold；The historical traffic record at least wraps
It includes: vehicle density, display duration, the traveling duration in monitoring area；
Reject the historical traffic record that setting condition is not met in the multiple historical traffic record；It is same for wherein imposing a condition
Traveling duration of the vehicle in the monitoring area is less than given threshold；
Each historical traffic, which is obtained, according to remaining historical traffic record records corresponding vehicle density variance；
Determine that the corresponding vehicle density of the smallest vehicle density variance is standard vehicle density.
4. wagon flow control method according to claim 1, which is characterized in that the method also includes:
Obtain the wagon flow length between the specified crossing and the adjacent intersection of vehicle heading；
According to the corresponding relationship of preset wagon flow length and duration matching factor, duration is determined according to the wagon flow length
Distribution coefficient；
The display duration of the specified crossing and adjacent intersection indicator light is adjusted based on the duration matching factor.
5. a kind of wagon flow control device, which is characterized in that described device includes:
It travels duration and obtains module, for obtaining the traveling duration of same vehicle in monitoring area；The monitoring area is specified
The intersecting area of crossing all directions road；
It shows that duration adjusts module, is used for when same vehicle travels duration more than given threshold in the monitoring area, together
The display duration of the successive step each crossing indicator light adjacent with the specified crossing, to reduce the vehicle of the specified crossing all directions
Stream.
6. wagon flow control device according to claim 5, which is characterized in that display duration adjusts module and includes:
Duration acquiring unit is shown, for obtaining the vehicle density of the specified crossing and its adjacent each crossing in different directions
The display duration current with indicator light；
First predicting unit, for being directed to adjacent each crossing, when by the current display of the vehicle density of different directions and indicator light
The corresponding vehicle density prediction algorithm in long input each crossing predicts the wagon flow in direction corresponding with the specified crossing
Density；
Second predicting unit, vehicle density and the specified crossing present period for predicting adjacent each crossing
Standard vehicle density is input to the corresponding vehicle density prediction algorithm in the specified crossing, predicts the finger in subsequent time period
Determine the vehicle density of crossing all directions；
Duration adjustment unit is shown, for the vehicle density of the specified crossing all directions and display duration to be separately input into pair
The duration adjustment algorithm for answering crossing obtains the display duration of each crossing indicator light in subsequent period.
7. wagon flow control device according to claim 6, which is characterized in that second predicting unit includes:
Historical record obtains subelement, and the multiple historical traffic for obtaining with being in same time period more than given threshold is remembered
Record；The historical traffic record includes at least: vehicle density, display duration, the traveling duration in monitoring area；
Historical record rejects subelement, for rejecting the historical traffic for not meeting setting condition in the multiple historical traffic record
Record；Wherein impose a condition is that traveling duration of the same vehicle in the monitoring area is less than given threshold；
Variance obtains subelement, records corresponding vehicle density for obtaining each historical traffic according to remaining historical traffic record
Variance；
Standard density determines subelement, for determining that the corresponding vehicle density of the smallest vehicle density variance is that standard wagon flow is close
Degree.
8. wagon flow control device according to claim 5, which is characterized in that described device further include:
Wagon flow length obtains module, long for obtaining the wagon flow between the specified crossing and the adjacent intersection of vehicle heading
Degree；
Matching factor determining module, for the corresponding relationship according to preset wagon flow length and duration matching factor, according to
The wagon flow length determines duration matching factor；
Show that duration adjusts module, for adjusting the specified crossing and adjacent intersection indicator light based on the duration matching factor
Display duration.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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