CN110136444A - A kind of intersection green light sky puts time calculation method and device - Google Patents
A kind of intersection green light sky puts time calculation method and device Download PDFInfo
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- CN110136444A CN110136444A CN201910489009.6A CN201910489009A CN110136444A CN 110136444 A CN110136444 A CN 110136444A CN 201910489009 A CN201910489009 A CN 201910489009A CN 110136444 A CN110136444 A CN 110136444A
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- G—PHYSICS
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
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- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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Abstract
The present invention provides a kind of intersection green light skies to put time calculation method and device, pass through the tracking to intersection vehicles are entered, in the case where meeting pedestrains safety street crossing, the green light sky that each phase in the phase cycling can be calculated after a complete phase end cycle puts the time, it can directly reflect the Quality degree of effective utilization of each phase green time of signalized intersections, and quantify to using unbalanced degree.
Description
Technical field
The present invention relates to intellectual traffic control fields, put time calculation method especially with regard to a kind of intersection green light sky.
Background technique
Classical signal controls intersection, generally remains that lane function is constant, and in each period each phase signal timing dial
It is fixed.The determination of its signal timing plan is to be formulated with prolonged volume of traffic observed result for foundation, in entire signal control
During scheme operation processed, the transport need being able to satisfy on the different directions of intersection substantially, but do not adapt to all directions in short-term and hand over
Through-flow fluctuation situation.When different directions traffic flow is fluctuated in the signal period, each phase green time in intersection is often resulted in
What is utilized is unbalanced, have it is too long, having too short, too long phase green time, it will cause when a degree of phase green light
Between sky put, that is, the lane to give a green light does not have vehicle pass-through, and there is vehicle queue in the lane to send out a warning, cause vehicle delay increase
Greatly, the problems such as intersection capacity declines.
Green light sky, which puts the time, can not only directly reflect the Quality degree of effective utilization of green time, and can be each by intersection
Phase green time is quantified using unbalanced degree, can be used as signal evaluation index, determines that the existing signal in intersection is matched
When scheme defect, serve current crossing signal control, promote the traffic capacity of intersection.
Summary of the invention
It is an object of that present invention to provide a kind of intersection green light skies to put time calculation method, hands over for solving existing signal
Green light Quality degree of effective utilization and the technical issues of can not be quantified using inequality extent in prong.
To reach above-mentioned purpose, the following technical solutions are proposed by the present invention: a kind of intersection green light sky puts time calculation method,
Including the following contents:
Starting detection device is detected and is collected to the vehicle traveling information for entering intersection；
Enabling signal control platform and the clearance phase letter that the phase cycling is collected after a complete phase end cycle
Breath；
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass；
Parameter two, minimum green time Gmingreen；
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end；
The size of reduced parameter one and parameter two,
If parameter one be not more than parameter two, this phase sky put the time be 0；
If parameter one is greater than parameter two, parameter three is further obtained to the finish time T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is greater than preset sky and puts interval GD,
Then the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is less than preset sky and puts interval GD,
The workshop excessively that adjacent two vehicle is then successively obtained from first bus is put every and with sky is spaced GDIt is compared, until there are adjacent two vehicles
Cross workshop every be greater than sky put interval GD, remember that the vehicle moment that crosses of previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time
For Te-Ti；If until the finish time T that lets passe, there is no adjacent two vehicle cross workshop every be greater than sky put interval GD, remember last
The vehicle moment that crosses of vehicle is Tn, then the sky of this phase puts the time as Te-Tn。
Further, in the above-mentioned methods, the driving information includes lane and the time of vehicles while passing intersection.
Further, in the above-mentioned methods, the clearance phase information includes clearance direction and lets pass the period.
Further, in the above-mentioned methods, the minimum green time G of different directions clearance phasemingreenCalculation method
It is as follows:
Turn to phase, GmingreenFor predetermined fixed value；
Straight trip phase, Gmingreen=L/V, wherein L is the length of crossing, and V is pedestrian's average speed；
When having multiple directions clearance simultaneously, maximum G in current each clearance direction is takenmingreenValue be in this case
Minimum green time Gmingreen。
Further, in the above-mentioned methods, sky puts interval GDTake unit green extension.
Further, in the above-mentioned methods, the lane position of intersection all directions road is set in detection device in advance
Confidence breath and direction information；
When vehicle enters detection zone, detection device is distinguished according to the distance, speed and azimuth of vehicle and identifies vehicle
, and one-to-one identifier is set to vehicle, then the track to vehicle is realized by the change in location of real-time detection vehicle
Tracking, when detecting that vehicle enters intersection, in conjunction with pre-set lane position information and direction information, obtain vehicle into
Enter lane information and the time of intersection, i.e. vehicle driving direction and time for entering intersection.
The present invention further simultaneously discloses a kind of intersection green light sky and puts time computing device, including,
Detection device, for being detected to the vehicle traveling information for entering intersection；
Signal control platform, for controlling the signal lamp phase of intersection；
Data processor, for collecting the driving information and clearance phase information of vehicle, and according to preset following calculating
Mode calculates green light sky and puts the time:
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass；
Parameter two, minimum green time Gmingreen；
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end；
The size of reduced parameter one and parameter two,
If parameter one be not more than parameter two, this phase sky put the time be 0；
If parameter one is greater than parameter two, parameter three is further obtained to the finish time T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is greater than preset sky and puts interval GD,
Then the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is less than preset sky and puts interval GD,
The workshop excessively that adjacent two vehicle is then successively obtained from first bus is put every and with sky is spaced GDIt is compared, until there are adjacent two vehicles
Cross workshop every be greater than sky put interval GD, remember that the vehicle moment that crosses of previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time
For Te-Ti；If until the finish time T that lets passe, there is no adjacent two vehicle cross workshop every be greater than sky put interval GD, remember last
The vehicle moment that crosses of vehicle is Tn, then the sky of this phase puts the time as Te-Tn。
In addition, the present invention opens simultaneously discloses a kind of electronic equipment, including memory and processor, the memory and institute
It states and communicates with each other connection between processor, computer instruction is stored in the memory, the processor passes through described in execution
Computer instruction puts time calculation method thereby executing a kind of intersection green light sky.
In addition, a kind of computer readable storage medium, the computer-readable recording medium storage has computer instruction, institute
It states computer instruction and puts time calculation method for making the computer execute a kind of intersection green light sky.
The utility model has the advantages that
From the above technical scheme, technical solution of the present invention provides a kind of intersection green light sky and puts time calculating side
Method and device are obtained in a cycle by the tracking to intersection vehicles are entered in the case where meeting pedestrains safety street crossing
The green light timing of all directions, which puts with the presence or absence of green light sky and calculates specific sky, puts the time, can accurately reflect signal friendship
The utilization rate of prong green light.
Further, each phase green time in intersection is quantified using unbalanced degree, can be used as signal
Evaluation index determines the defect of the existing signal time distributing conception in intersection, and the reference as traffic signal timing optimization, is conducive to mention
Rise the traffic capacity of intersection.
It should be appreciated that as long as aforementioned concepts and all combinations additionally conceived described in greater detail below are at this
It can be viewed as a part of the subject matter of the disclosure in the case that the design of sample is not conflicting.
Can be more fully appreciated from the following description in conjunction with attached drawing present invention teach that the foregoing and other aspects, reality
Apply example and feature.The features and/or benefits of other additional aspects such as illustrative embodiments of the invention will be below
Description in it is obvious, or learnt in practice by the specific embodiment instructed according to the present invention.
Detailed description of the invention
Attached drawing is not intended to drawn to scale.In the accompanying drawings, identical or nearly identical group each of is shown in each figure
It can be indicated by the same numeral at part.For clarity, in each figure, not each component part is labeled.
Now, example will be passed through and the embodiments of various aspects of the invention is described in reference to the drawings, in which:
Fig. 1 is the signal that the detection device of meaning shown in specific embodiments of the present invention detects intersection region
Figure；
Fig. 2 is to cross vehicle situation schematic diagram under the different situations of meaning shown in specific embodiments of the present invention.
Specific embodiment
In order to better understand the technical content of the present invention, special to lift specific embodiment and institute's accompanying drawings is cooperated to be described as follows.
Various aspects with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the embodiment of many explanations.
It is not intended to cover all aspects of the invention for embodiment of the disclosure.It should be appreciated that a variety of designs and reality presented hereinbefore
Those of apply example, and describe in more detail below design and embodiment can in many ways in any one come it is real
It applies, this is because conception and embodiment disclosed in this invention are not limited to any embodiment.In addition, disclosed by the invention one
A little aspects can be used alone, or otherwise any appropriately combined use with disclosed by the invention.
Embodiment one, specific embodiments of the present invention are based on existing traffic signal timing scheme road that is unreasonable, such as having
Mouth puts more or insufficient timing technical problem there are green light sky, is expected that by scheme introduced below accurately to obtain green light sky
Put the time, for accurately reflecting the utilization rate of signalized intersections green light, so as to the later period as the timing of assessment signal lamp whether section
It learns, reasonable important evidence.
A kind of intersection green light sky puts time calculation method as a result, puts time calculating applied to a kind of intersection green light sky
System, the intersection green light sky are put time computing system and are electrically connected with detection device, signal control equipment, and detection device inspection is collected
The clearance phase information of running data and signal the control equipment measured, and when specifically calculating green light sky according to these information and putting
Between.Specifically, the above method includes:
On the one hand, starting detection device is detected and is collected to the vehicle traveling information for entering intersection.Here row
Sailing information includes lane and the time that vehicle enters intersection.
In certain specific embodiments, detection device is microwave detector, and lower mask body introduces how to examine by microwave
It surveys device and detects above-mentioned driving information.
(such as Traffic signal post, light pole) has laid microwave detector, microwave inspection first on the rod piece near intersection
The device face road to be detected is surveyed, in general, an at least microwave detector is equipped with to every road of intersection, so as to right
Driving situation on every road can trace into.Adjust pitch angle, deflection angle and the level on rod piece of microwave detector
Position, until the road to be detected can be completely covered in the wave beam of microwave detector.
As shown in Figure 1, the range for the microwave that microwave detector is emitted completely covered in the region of intersection it is to be detected
Road.It is presented specifically, being converted into specific data mode in the following manner.With the transmitting face plate center of microwave detector
The position at place is coordinate origin O, and to be parallel to track direction as X-axis, the direction perpendicular to lane is that Y-axis establishes coordinate system:
In the example of fig. 1, the side of the fan-shaped region of microwave detector scanning is X-axis, and the stop line of another side and road is separate
The farthest point intersection in microwave detector direction.In other embodiments, microwave detector is located at the middle position of road, scanning
The two sides of fan-shaped region are symmetrical relative to X-axis.The specific location of the above microwave detector is for example, implementer can basis
The case where site road, voluntarily adjusts.
Also need to be arranged in detection device in advance the lane position information and direction information of intersection all directions road.
It is presented specifically, lane position information is converted into specific data mode in the following manner.Each lane is numbered,
And determine coordinate range of each lane in Y-axis.For example, the coordinate range of first lane be Y0≤Lane1 < Y1, second
The coordinate range in lane is Y1≤Lane2 < Y2, and the coordinate range of third lane is Y2≤Lane3 < Y3, and so on.
Then, when vehicle enters detection zone, using above-mentioned microwave detector according to the distance, speed and orientation of vehicle
Vehicle is divided and identified in angular region, and one-to-one identifier is arranged to vehicle, then real by the change in location of real-time detection vehicle
Now to the track following of vehicle, when detecting that vehicle enters intersection, in conjunction with pre-set lane position information and steering
Information obtains vehicle and enters lane information and the time of intersection, i.e. vehicle driving direction and time for entering intersection.
In the above process, position is specifically extracted from echo-signal, speed, the information such as azimuth belong to it is micro- in the prior art
The routine techniques of wave detection, for details, reference can be made to the prior arts, and details are not described herein again.
Further, the lane information during the above-mentioned tracking to vehicle, is converted into specific number in the following way
It is presented according to form.It is established after the location information for obtaining target vehicle, then by coordinate origin O of the position where microwave detector
Coordinate system in determine target vehicle X-coordinate value and Y-coordinate value, according to the coordinate range where Y-coordinate value i.e. determine target
Lane information locating for vehicle.
On the other hand, signal control platform collects the clearance phase of the phase cycling after a complete phase end cycle
Information.Due to only focusing on clearance phase information, and put it is an object of the present invention to put the time for green light sky to be calculated
Row phase information includes clearance direction and lets pass the time.
After above-mentioned two aspects information is all collected into, the green light sky that can calculate each phase is put the time, and concrete scheme is as follows:
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass.
Parameter two, minimum green time Gmingreen.The minimum green time T of different direction clearance phasesmingreenMeter
Calculation method is as follows: turning to phase, GmingreenFor predetermined fixed value, default value is 15 seconds；Straight trip phase, Gmingreen=L/V,
In, L is the length of crossing, and V is pedestrian's average speed, mainly considers at least to allow pedestrian can be needed for safety green light
Time；If have multiple directions clearance simultaneously, maximum G in current each clearance direction is takenmingreenValue be in this case
Minimum green time Gmingreen。
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end.The parameter
Meaning is that, for calculating in existing timing scheme, when considering that sky puts the starting point of time, starting point cannot be no earlier than the parameter
Then, pedestrian will be unable to safety crossing.
Then, the size of reduced parameter one and parameter two, the selection of parameter two is depending on clearance phase here: i.e. when turn
To lane let pass when, select predetermined fixed value such as 15 seconds as parameter two；When direction of keeping straight on is let pass, G is selectedmingreenAs
Parameter two；When multiple directions are let pass, select in all directions minimum green time that biggish value as parameter two.
If parameter one be not more than parameter two, this phase sky put the time be 0.I.e. corresponding scene is, when which lets pass
Between lower than pedestrian by the minimum safe green time of crossing, timing herein need to be adjusted, increase green time.
If parameter one is greater than parameter two, further obtaining parameter three and arriving terminates the moment T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, i.e., corresponding scene is minimum green time G after vehicle is concentrated throughmingreenAfterwards without vehicle
Again by, then this period just be entirely sky put the time, therefore, it is determined that the sky of this phase put the time be Te-Tws。
As shown in the time shaft of the top of Fig. 2, if crossing vehicle records non-empty, and first bus crosses vehicle moment T1Between parameter three
Interval be greater than preset sky put interval GD, i.e., corresponding scene is after vehicle is concentrated through, it is subsequent come workshop every the long period
Just reach intersection, then ought to by it is subsequent come vehicle be included in next clearance period and pass through, therefore, it is determined that the sky of this phase is put
Time is Te-Tws。
As shown in the time shaft of the centre of Fig. 2, if crossing vehicle records non-empty, and first bus crosses vehicle moment T1Between parameter three
Interval is less than preset sky and puts interval GD, then the workshop excessively that adjacent two vehicle is successively obtained from first bus is put every and with sky is spaced GDInto
Row compare, until there are adjacent two vehicle cross workshop every be greater than sky put interval GD, i.e., after corresponding scene is concentrated through for vehicle,
It is subsequent come vehicle first bus interval time it is shorter, but after first bus it is subsequent come vehicle in there are interval time longer situations, i.e., green
In the lamp period, subsequent vehicle pass-through efficiency is lower, these interval times longer vehicle ought to be included in next clearance week
Pass through in phase, should especially be put in the previous green light period from first longer front truck vehicle crossed in vehicle intra-record slack byte
Row, and rear car vehicle should let pass in the green light of next cycle, this scheme can take into account vehicle with tightness and green light timing,
Therefore, the vehicle moment that crosses for remembering previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time as Te-Ti.Otherwise, such as Fig. 2
Bottom time shaft shown in, if until let pass finish time Te, workshop is crossed between putting greater than sky there is no adjacent two vehicle
Every GD, remember that the vehicle moment that crosses of last vehicle is Tn, then the sky of this phase puts the time as Te-Tn, corresponding scene is in green light
In whole cycle, vehicle pass-through is smooth, and the convoy spacing time is shorter, and traffic efficiency is higher, then the sky of this phase put the time compared with
It is short, it is Te-Tn。
In certain specific embodiments, sky puts time interval GDIt is set to unit green extension, usually 3s-5s.
Embodiment two, another embodiment of the invention disclose a kind of intersection green light sky and put time computing device, including
Detection device, for being detected to the vehicle traveling information for entering intersection；
Signal controls equipment, for controlling the signal lamp phase of intersection；
Data processor, for collecting the driving information and clearance phase information of vehicle, and according to preset following calculating
Mode calculates green light sky and puts the time:
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass；
Parameter two, minimum green time Gmingreen；
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end；
The size of reduced parameter one and parameter two,
If parameter one be not more than parameter two, this phase sky put the time be 0；
If parameter one is greater than parameter two, parameter three is further obtained to the finish time T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is greater than preset sky and puts interval GD,
Then the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is less than preset sky and puts interval GD,
The workshop excessively that adjacent two vehicle is then successively obtained from first bus is put every and with sky is spaced GDIt is compared, until there are adjacent two vehicles
Cross workshop every be greater than sky put interval GD, remember that the vehicle moment that crosses of previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time
For Te-Ti；If until the finish time T that lets passe, there is no adjacent two vehicle cross workshop every be greater than sky put interval GD, remember last
The vehicle moment that crosses of vehicle is Tn, then the sky of this phase puts the time as Te-Tn。
Embodiment three, another embodiment of the invention disclose a kind of electronic equipment, including memory and processor, described
Connection is communicated with each other between memory and the processor, such as is connected by bus or other modes, in the memory
It is stored with computer instruction, the processor is by executing the computer instruction, thereby executing a kind of intersection green light
Sky puts time calculation method.
Processor is preferably but not limited to be central processing unit (Central Processing Unit, CPU).For example, processing
Device can also be other general processors, digital signal processor (Digital Signal Processor, DSP), dedicated collection
At circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array
(FieldProgrammable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor are patrolled
Collect the combination of the chips such as device, discrete hardware components or above-mentioned all kinds of chips.
Memory as a kind of non-transient computer readable storage medium, can be used for storing non-transient software program, it is non-temporarily
State computer executable program and module, as one of embodiment of the present invention intersection green light sky puts time calculation method pair
Program instruction/the module answered, processor are stored in non-transient software program, instruction and the module of memory by operation, from
And execute the various function application and data processing of processor, that is, realize one of above method embodiment intersection green light
Sky puts time calculation method.
Memory may include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program required for a few function；It storage data area can the data etc. that are created of storage processor.In addition, memory is excellent
High-speed random access memory is selected but is not limited to, for example, it is also possible to be non-transient memory, a for example, at least magnetic disk storage
Part, flush memory device or other non-transient solid-state memories.In some embodiments, it includes relative to place that memory is also optional
The remotely located memory of device is managed, these remote memories can pass through network connection to processor.The example packet of above-mentioned network
Include but be not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
It is that can lead to it will be understood by those skilled in the art that realizing all or part of the process in above-described embodiment method
Computer program is crossed to instruct relevant hardware the program completed, can be stored in a computer-readable storage medium, it should
Program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, storage medium can be magnetic disk, CD, read-only
It is storage memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), fast
Flash memory (Flash Memory), hard disk (Hard Disk Drive, abbreviation: HDD) or solid state hard disk (Solid-State
Drive, SSD) etc.；Storage medium can also include the combination of the memory of mentioned kind.
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention.Skill belonging to the present invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (9)
1. a kind of intersection green light sky puts time calculation method, it is characterised in that:
Starting detection device is detected and is collected to the vehicle traveling information for entering intersection；
Enabling signal control platform and the clearance phase information that the phase cycling is collected after a complete phase end cycle；
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass；
Parameter two, minimum green time Gmingreen；
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end；
The size of reduced parameter one and parameter two,
If parameter one be not more than parameter two, this phase sky put the time be 0；
If parameter one is greater than parameter two, parameter three is further obtained to the finish time T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is greater than preset sky and puts interval GD, then this
The sky of phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is less than preset sky and puts interval GD, then from
The workshop excessively that first bus successively obtains adjacent two vehicle is put every and with sky is spaced GDIt is compared, until crossing vehicle there are adjacent two vehicle
Interval is greater than sky and puts interval GD, remember that the vehicle moment that crosses of previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time and is
Te-Ti；If until the finish time T that lets passe, there is no adjacent two vehicle cross workshop every be greater than sky put interval GD, remember last vehicle
Cross the vehicle moment be Tn, then the sky of this phase puts the time as Te-Tn。
2. a kind of intersection green light sky according to claim 1 puts time calculation method, it is characterised in that: the traveling letter
Breath includes lane and the time that vehicle enters intersection.
3. a kind of intersection green light sky according to claim 1 puts time calculation method, it is characterised in that: the clearance phase
Position information includes clearance direction and lets pass the time.
4. a kind of intersection green light sky according to claim 1 puts time calculation method, it is characterised in that: different directions are put
The minimum green time G of row phasemingreenCalculation method it is as follows:
Turn to phase, GmingreenFor predetermined fixed value；
Straight trip phase, Gmingreen=L/V, wherein L is the length of crossing, and V is pedestrian's average speed；
When having multiple directions clearance simultaneously, maximum G in current each clearance direction is takenmingreenValue be minimum in this case
Green time Gmingreen。
5. a kind of intersection green light sky according to claim 1 puts time calculation method, it is characterised in that: sky puts interval GD
Take unit green extension.
6. a kind of intersection green light sky according to claim 2 puts time calculation method, it is characterised in that:
The lane position information and direction information of intersection all directions road are set in detection device in advance；
When vehicle enters detection zone, vehicle is distinguished and identified to detection device according to the distance, speed and azimuth of vehicle, and
One-to-one identifier is set to vehicle, then the track following to vehicle is realized by the change in location of real-time detection vehicle,
When detecting that vehicle enters intersection, in conjunction with pre-set lane position information and direction information, obtains vehicle and enter friendship
The lane information of prong and time, i.e. vehicle enter driving direction and the time of intersection.
7. a kind of intersection green light sky puts time computing device, it is characterised in that: including
Detection device, for being detected to the vehicle traveling information for entering intersection；
Signal control platform, for controlling the signal lamp phase of intersection；
Data processor, for collecting the driving information and clearance phase information of vehicle, and according to preset following calculation
It calculates green light sky and puts the time:
Obtain following parameter relevant to the clearance phase:
Parameter one, let pass time Gf, Gf=Te-Ts, wherein TsFor start time of letting pass, TeFor finish time of letting pass；
Parameter two, minimum green time Gmingreen；
Parameter three, earliest sky put moment Tws, wherein TwsFor minimum green time GmingreenAt the time of end；
The size of reduced parameter one and parameter two,
If parameter one be not more than parameter two, this phase sky put the time be 0；
If parameter one is greater than parameter two, parameter three is further obtained to the finish time T that lets passeBetween cross vehicle record:
If crossing vehicle is recorded as sky, the sky of this phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is greater than preset sky and puts interval GD, then this
The sky of phase puts the time as Te-Tws；
If crossing vehicle record non-empty, and first bus crosses vehicle moment T1Interval between parameter three is less than preset sky and puts interval GD, then from
The workshop excessively that first bus successively obtains adjacent two vehicle is put every and with sky is spaced GDIt is compared, until crossing vehicle there are adjacent two vehicle
Interval is greater than sky and puts interval GD, remember that the vehicle moment that crosses of previous vehicle of adjacent two vehicle is Ti, then the sky of this phase puts the time and is
Te-Ti；If until the finish time T that lets passe, there is no adjacent two vehicle cross workshop every be greater than sky put interval GD, remember last vehicle
Cross the vehicle moment be Tn, then the sky of this phase puts the time as Te-Tn。
8. a kind of electronic equipment, which is characterized in that including memory and processor, between the memory and the processor mutually
Connection is communicated, computer instruction is stored in the memory, the processor, which passes through, executes the computer instruction, thus
Perform claim requires a kind of any one of 1-6 intersection green light sky to put time calculation method.
9. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the computer instruction is for making the computer perform claim that a kind of intersection green light sky of any one of 1-6 be required to put the time
Calculation method.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489009.6A CN110136444B (en) | 2019-06-06 | 2019-06-06 | Intersection green light idle time calculation method and device |
| PCT/CN2020/094618 WO2020244624A1 (en) | 2019-06-06 | 2020-06-05 | Method and device for calculating duration when green light is given to empty road at intersection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910489009.6A CN110136444B (en) | 2019-06-06 | 2019-06-06 | Intersection green light idle time calculation method and device |
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| CN111429721A (en) * | 2020-03-27 | 2020-07-17 | 江苏智通交通科技有限公司 | Intersection traffic signal scheme optimization method based on queuing dissipation time |
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| CN113516857A (en) * | 2021-04-19 | 2021-10-19 | 安徽达尔智能控制系统股份有限公司 | Intersection signal timing dynamic allocation method and system based on radar monitoring |
| CN114627660A (en) * | 2022-03-11 | 2022-06-14 | 公安部交通管理科学研究所 | Real-time iterative optimization control method for intersection signals facing unbalanced traffic flow |
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| CN114120673B (en) * | 2022-01-28 | 2022-05-13 | 腾讯科技（深圳）有限公司 | Information processing method, device and equipment for signal lamp and storage medium |
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| CN110136444B (en) | 2020-07-10 |
| WO2020244624A1 (en) | 2020-12-10 |
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