CN107170254B - A kind of traffic lights self-adaptation control method and device - Google Patents
A kind of traffic lights self-adaptation control method and device Download PDFInfo
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- CN107170254B CN107170254B CN201710434613.XA CN201710434613A CN107170254B CN 107170254 B CN107170254 B CN 107170254B CN 201710434613 A CN201710434613 A CN 201710434613A CN 107170254 B CN107170254 B CN 107170254B
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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
Abstract
The embodiment of the present invention provides a kind of traffic lights self-adaptation control method and device, it include: the phase type for obtaining each phase in intersection, and green light initial duration of each phase in the control period, the phase type includes coordinating phase and non-coordinating phase, a coordination phase is included at least in each ring, is coordinated the practical duration of green light that phase controls in the period at one and is greater than or equal to the initial duration of green light for coordinating phase；The phase controlled in intersection described in the period for one, during the green light of the phase, according to the phase type of the phase, the magnitude of traffic flow of the phase and the phase be located at the phase locating for position in barrier judge whether to carry out traffic control according to the initial duration of green light of the phase, if it is not, then carrying out traffic control according to the practical duration of the green light of the phase.
Description
The application be on June 16th, 2015 application No. is the 201510332420.4, applying date, it is entitled " a kind of
The divisional application of traffic lights self-adaptation control method and device ".
Technical field
The present invention relates to technical field of traffic control more particularly to a kind of traffic lights self-adaptation control methods and dress
It sets.
Background technique
Existing urban transportation plays an important role in economy and society development, the especially traffic of downtown area,
The raising of operational efficiency can bring huge economic benefit and social benefit.Modern City Traffic controls most common means
It is exactly that traffic control is carried out by road traffic signal indicator light.Utilize signal lamp different colours (red, yellow, and green) periodic cycle
Variation carries out traffic control, for different traffic stream characteristics is separated into the different periods signal period, to prevent mutually
The traffic participant of conflict obtains right-of-way simultaneously in certain period, and the generation of traffic conflict is avoided with this.Signal controls good
It is bad, not only influence the traffic capacity of road, vehicle waiting time, but also with vehicle exhaust emission, fuel consumption, noise pollution etc.
There is indirect relation.
In China, the traffic lights of 80% or more intersection are untethered coordinated control, i.e., coordinate to control without cable
System, is one kind of arterial road coordinate control mode.It is untethered to coordinate only simply to set a control period for traffic lights, and
The control period of traffic lights cannot be adjusted in real time according to the actual conditions of road traffic.For this purpose, the mesh of the embodiment of the present invention
Be the shortcomings that overcoming the prior art and deficiency, provide it is a kind of suitable for intersection in Different Traffic Flows amount
The control method of traffic lights.
Summary of the invention
The embodiment of the present invention provides a kind of traffic lights self-adaptation control method and device, is suitable for provide one kind
The control method of the traffic lights of Different Traffic Flows amount.
A kind of traffic lights self-adaptation control method provided in an embodiment of the present invention, comprising:
It is initial to obtain the green light of the phase type of each phase and each phase in the control period in intersection
Duration, the phase type include coordinating phase and non-coordinating phase, include at least a coordination phase in each ring, coordinate phase
The practical duration of green light that position controls in the period at one is greater than or equal to the initial duration of green light for coordinating phase；
The phase controlled in intersection described in the period for one, during the green light of the phase, root
It is located at the position in barrier locating for the phase according to the phase type of the phase, the magnitude of traffic flow of the phase and the phase
It sets and judges whether to carry out traffic control according to the initial duration of green light of the phase, if it is not, then real according to the green light of the phase
Border duration carries out traffic control.
The embodiment of the present invention provides a kind of traffic lights adaptive controller, which includes:
Determination unit, it is all in control for obtaining the phase type of each phase and each phase in intersection
The initial duration of interim green light, the phase type include coordinating phase and non-coordinating phase, include at least one in each ring
Coordinate phase, at the beginning of coordinating the green light that the practical duration of green light that phase controls in the period at one is greater than or equal to the coordination phase
Beginning duration；
Control unit, for controlling a phase in intersection described in the period for one, according to the phase
Phase type, the phase the magnitude of traffic flow and the position that is located in barrier locating for the phase of the phase judge whether
Traffic control is carried out according to the initial duration of the green light of the phase, if it is not, then carrying out according to the practical duration of the green light of the phase
Traffic control.
The method and device provided according to embodiments of the present invention, according to the phase type of the phase, the friendship of the phase
Through-current capacity and the phase be located at the position in barrier locating for the phase judge whether it is initial according to the green light of the phase
Duration carries out traffic control, carries out self adaptive control to traffic lights according to Real-Time Traffic Volume to realize.
Detailed description of the invention
Fig. 1 is a kind of intersection schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of phase clearance sequence schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of traffic lights self-adaptation control method flow chart provided in an embodiment of the present invention；
Fig. 4 is a kind of traffic lights self adaptive control flow diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of traffic lights adaptive controller structure chart provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawings of the specification.
In the embodiment of the present invention, intersection is when controlling the clearance of vehicle flowrate, by multiple phases (phase) clearance sequence
The group of column is collectively referred to as ring, and phase refers in a signal control cycle duration, while obtaining the one or more of right-of-way and handing over
Through-flow signal display state.One ring can be cut into several sections, be referred to as barrier for cut ring
(barrier).The phase that can exist while let pass in different rings in same barrier, and it is in the different rings of same barrier
In the phase let pass simultaneously need to meet the constraint of barrier duration, i.e., the phase let pass simultaneously in the different rings in same barrier
Green light duration should be equal.Meanwhile in intersection each ring green light duration be the ring in include
The sum of green light duration of all phases, and the green light duration of each ring is equal, equal to the control of intersection
Cycle duration.
It should be noted that can also be with reference to " the GA509- of Ministry of Public Security's publication about explaining for ring, phase and barrier
2004 urban traffic signal control system terms ", details are not described herein.
It should be noted that cycle duration is controlled in the embodiment of the present invention can also be referred to as cycle duration, it is a road
The sum of the long green light time of each phase in road intersection is referred to as control cycle duration below.
For example, as shown in Figure 1, a kind of intersection schematic diagram provided in an embodiment of the present invention.In Fig. 1, road
Intersection is made of the road of east-west direction and the intersection of North and South direction, shares 8 phases, respectively P1, P2, P3, P4,
P5,P6,P7,P8.The clearance scheme of the intersection is made of two rings, the phase clearance sequence of ring 1 is P1, P6, P7,
P4, the phase clearance sequence of ring 2 are P5, P2, P3, P8.
In conjunction with Fig. 1, as shown in Fig. 2, a kind of phase clearance sequence schematic diagram provided in an embodiment of the present invention.In Fig. 2, due to
P1, P6 exist with P3, P8 to conflict and cannot let pass simultaneously, is divided by barrier 1；P5, P2 and P7, P4 cannot be put simultaneously in the presence of conflict
Row, is divided by barrier 2.It include the P1 and P6 in ring 1, P5 and P2 in ring 2 in barrier 1；Including the P7 in ring 1 in barrier 2
And P4, P3 and P8 in ring 2.The green light duration B of barrier 1 at this time1Are as follows: B1=τ1+τ6, alternatively, when 1 green light of barrier continues
Long B1Are as follows: B1=τ5+τ2；The green light duration B of barrier 22For B2=τ7+τ4, alternatively, the green light duration B of barrier 22For B2
=τ3+τ8, wherein τiFor the green light duration of i-th of phase, i is positive integer.As described above, the green light of different rings
Duration should be consistent, it may be assumed that τ1+τ6+τ7+τ4=τ5+τ2+τ3+τ8.Meanwhile the control period C of the intersection again can be with
It indicates: C=τ1+τ6+τ7+τ4=τ5+τ2+τ3+τ8=B1+B2。
In the embodiment of the present invention, coordinate phase and non-coordinating phase by the way that phase type in each ring to be divided into, and
After determining the initial duration of the green light of each phase, traffic control is carried out according to the Real-Time Traffic Volume of each phase, improves friendship
The efficiency of logical control.Description specific as follows.
As shown in figure 3, a kind of traffic lights self-adaptation control method flow chart provided in an embodiment of the present invention, this method
Include:
Step 301: the phase type of each phase and each phase are in the control period in acquisition intersection
The initial duration of green light, the phase type include coordinating phase and non-coordinating phase, include at least a coordination phase in each ring
When position, the practical duration of green light that coordination phase controls in the period at one are initial more than or equal to the green light for coordinating phase
It is long；
Step 302: the phase controlled in intersection described in the period for one, in the green light phase of the phase
In, according to the phase type of the phase, the magnitude of traffic flow of the phase and the phase be located at the phase locating for screen
Position in barrier judges whether to carry out traffic control according to the initial duration of green light of the phase, if it is not, then according to the phase
The practical duration of green light carry out traffic control.
Before step 301, it is also necessary to which the phase type for determining each phase in intersection determines in intersection
The phase type of each phase can be there are many method.
For example, a kind of possible implementation is to set the phase of major trunk roads in intersection to coordinate phase
Position, sets non-coordinating phase for the phase of non-major trunk roads.
It optionally, can be according to every in intersection in order to enable traffic lights are more efficient to the control of traffic
The traffic intensity of a phase determines the phase type of each phase.
For example, the traffic intensity of each phase of the intersection is first determined；Then it is handed over for the road
The maximum N number of phase of traffic intensity in the ring is determined as coordinating phase by one ring of prong, strong by traffic is removed in the ring
The phase spent other than maximum N number of phase is determined as non-coordinating phase, wherein N is the positive integer more than or equal to 1.
The traffic intensity of each phase of intersection is determined according to the magnitude of traffic flow of each phase.It can be
Traffic data detector is set in each phase of intersection, each phase is then detected by traffic data detector
The magnitude of traffic flow, then determine the traffic intensity of each phase.Traffic data detector can be ring coil detector, earth magnetism
Detector, video detector, supersonic detector etc., the embodiment of the present invention does not limit this.
Optionally, the traffic intensity Q of i-th of phase can be calculated by the following formulai:
Wherein,For preset weighted value,LiFor the magnitude of traffic flow of i-th of phase of the intersection
Value, the value are detected by the way that traffic data detector is arranged in phase, SiIt is pre- for i-th of phase of the intersection
If saturation traffic flow magnitude, OiFor the time occupancy of i-th of phase of the intersection,For the intersection
The saturation time occupation rate of i-th of phase preset of mouth.
It should be noted that in formula (1)It can be arranged according to the actual situation.
It should be noted that time occupancy, which refers to, time existing for vehicle and system in road detection sectional plane or detection zone
The ratio between total time is counted, can detect to obtain by traffic data detector.
For example, preset saturation traffic flow magnitude S in formula (1)iAnd preset saturation time occupation rateIt can
It is obtained with the data detected according to traffic data detector, such as the magnitude of traffic flow in the preset time period that will test is most
Big value is used as the preset saturation magnitude of traffic flow, or using the average value of the magnitude of traffic flow detected every predetermined period as default
The saturation magnitude of traffic flow.For another example the maximum value of the time occupancy in the preset time period that will test is as preset full
And time occupancy, or accounted for the average value of the time occupancy detected every predetermined period as preset saturation time
There is rate.
In order to accurately calculate the traffic intensity of each phase, multiple traffic data detections can be set in a phase
Then device determines a traffic intensity according to the magnitude of traffic flow that each traffic data detector detects, then will determine
After multiple traffic intensities are weighted, take maximum value therein as the traffic intensity of the phase.
Can also determine the traffic intensity of each phase of intersection by other means, the embodiment of the present invention to this simultaneously
It does not limit, details are not described herein.
The traffic intensity of intersection is by obtaining after the traffic intensity of each phase of the intersection adds up
's.The traffic intensity of intersection can be determined by following formula:
Wherein, I is the traffic intensity of the intersection, and n is the number of phases that the intersection includes.
Equally, the traffic intensity for the phase for including in each ring can be obtained to the traffic intensity of the ring after cumulative；It will be every
The traffic intensity of the barrier can be obtained after the traffic intensity for the phase for including in a barrier is cumulative.
In determining intersection after the phase type of each phase, each phase is obtained in step 301
Phase type, while determining the initial duration of green light of each phase.
A kind of there are many ways to determining the green light of each phase initial duration, for example, possible implementation are as follows:
According to the quantity of phase, control cycle duration is averagely allocated to each phase.
For example, alternatively possible implementation are as follows: the traffic intensity according to each phase of intersection is true
The initial duration of green light of fixed each phase.
Specifically, Step 1: occupying the intersection according to the traffic intensity of each barrier of the intersection
The initial duration of green light of each barrier of intersection described in the ratio-dependent of the traffic intensity of mouth.Following formula can be used
Calculate the initial duration of green light of each barrier in intersection:
Wherein, TjFor the initial duration of green light of j-th of barrier in the intersection, C is control cycle duration, IjFor jth
The traffic intensity of a barrier, m are the quantity for the barrier that the intersection includes,Expression rounds up operation.
It should be noted that the operation that rounds up in formula (3) may be downward rounding operation.
Step 2: for a phase in the intersection, occupied according to the traffic intensity of the phase and institute
It states phase and adds up phase described in the ratio-dependent of sum in the control period with barrier and with the traffic intensity of all phases of ring
The initial duration of green light.
The initial duration of green light of each phase in j-th of barrier can be calculated using the following equation:
Wherein, TiFor the initial duration of green light of i-th of phase, k is with i-th of phase in j-th of barrier with the phase of ring
The quantity of position,Expression rounds up operation.
It should be noted that the operation that rounds up in formula (4) may be downward rounding operation.
It should be noted that control cycle duration can by a variety of methods determine, the embodiment of the present invention to this and it is unlimited
System, details are not described herein.
In step 302, the friendship of the phase type according to determining phase, the phase in the control period is needed
When through-current capacity and the phase are located at the position in barrier locating for the phase and determine that the green light of the phase is practical in real time
It is long, and traffic control is carried out according to the practical duration of the green light of the phase.
It should be noted that in the embodiment of the present invention, the practical duration of the green light of phase refer to the green light of phase from open to
The duration of end.
In the embodiment of the present invention, coordinates the practical duration of green light that phase controls in the period at one and be greater than or equal to the coordination
The initial duration of the green light of phase；Non-coordinating phase, which controls the practical duration of green light in the period at one, can be less than, is greater than or wait
In the initial duration of the green light of the non-coordinating phase, determined with specific reference to actual conditions.
Optionally, can the initial duration of green light to non-coordinating phase control, the wagon flow in non-coordinating phase
When amount is less than or equal to the default vehicle flowrate, the green light of the non-coordinating phase is terminated in advance, the idle running duration of green light is reduced.
Specifically, it is pre- to judge whether the vehicle flowrate in the phase is greater than when the phase type of phase is non-coordinating phase
If vehicle flowrate, if the vehicle flowrate in the phase is less than or equal to the default vehicle flowrate, judge whether the phase is institute
The last one phase in barrier locating for phase is stated, if the phase is not the last one phase in barrier locating for the phase,
Terminate the green light of the phase；
If the vehicle flowrate in the phase is less than or equal to default vehicle flowrate, and the phase is barrier locating for the phase
In the last one phase, then judge whether to terminate the phase according to being in the phase let pass with barrier and simultaneously with the phase
Green light green light.
Specifically, can be according to being in the phase judgement let pass with barrier and simultaneously with the phase in the following manner
The no green light green light for terminating the phase:
Judgement is in the phase let pass with barrier and simultaneously whether have coordination phase with the phase, if it is not, then judging
Whether be in the phase let pass with barrier and simultaneously with the phase has vehicle flowrate to be greater than the non-coordinating of the default vehicle flowrate
Phase, if being in the phase let pass with barrier and simultaneously with the phase does not have vehicle flowrate to be greater than the non-of the default vehicle flowrate
Coordinate phase, then terminates the green light of the phase；If being in the phase let pass with barrier and simultaneously with the phase has coordination
Phase then judges whether terminate in the green light for the coordination phase let pass with barrier and simultaneously with the phase, if the coordination
The green light of phase terminates, then terminates the green light of the phase, otherwise, is being in the phase let pass with barrier and simultaneously with the phase
At the end of the green light of coordination phase in position, terminate the green light of the phase.
By solution described above, the green light that vehicle flowrate can be less than or equal to default vehicle flowrate is terminated in advance, from
And the wasting of resources is reduced, it can more effectively alleviate traffic pressure.
It should be noted that default vehicle flowrate generally can be set to 0, in this way, determining when by traffic data detector
When not having vehicle flowrate to pass through in non-coordinating phase, the green light of the non-coordinating phase can be terminated in advance.
It should be noted that in the embodiment of the present invention terminate phase green light when, can terminate the phase green light it
Before, by control green light flashing, when flashing a length of pre-set buffer duration, the friendship generated so as to avoid green light from terminating suddenly
Interpreter's event.
In order to avoid non-coordinating phase green light terminates in advance and cause intersection control cycle duration change, need
Non-coordinating phase green light is terminated in advance and surplus time for generating increases and gives the non-coordinating phase with the coordination phase of ring,
Guarantee that the control cycle duration of intersection is totally constant.
Specifically, non-coordinating phase green light is terminated in advance to the surplus time increase generated by following steps gives this
Coordination phase of the non-coordinating phase with ring:
Step 1: determining the phase surplus duration of the phase, the phase surplus duration of the phase is equal to the phase
The initial duration of green light and the practical duration of green light difference；
Step 2: judgement is in same barrier with the phase, and whether has coordination in the phase after the phase
Phase, if so, going to step 3；
It is in Step 3: the phase surplus duration increase of the phase is given the phase with barrier and positioned at the phase
First coordination phase after position, and the phase surplus duration of the phase is given into the phase in increase and is in same barrier
And first coordination phase postposition after the phase is zero, is otherwise determined according to the phase surplus duration of the phase
The barrier surplus duration increase is given the phase and is in ring and position by the barrier surplus duration of barrier locating for the phase
First coordination phase after the phase, and by the barrier surplus duration increase give the phase be in ring and
First coordination phase postposition after the phase is zero.
In above-mentioned steps three, the barrier surplus duration of barrier locating for the phase is determined in the following manner:
Firstly, regarding the cumulative of the surplus duration for all non-coordinating phases being in the barrier in each ring as the ring
Surplus duration；Then, using the smallest ring surplus duration in ring surplus duration each in the barrier as the barrier knot of the barrier
Remaining duration.
In this way can be to avoid in the same barrier, since the ring surplus duration in different rings is different, caused barrier knot
There is error in the remaining time.For example, P1, P5, P6 in barrier 1 are non-coordinating phase in conjunction with Fig. 1 and Fig. 2, P2 is to coordinate phase
Position, the initial duration of the green light of P1 are greater than the initial duration of green light of P5, and in a control cycle duration, the green light of P1 is tied in advance
Beam terminates simultaneously with P5, at this time a length of A when the phase surplus of P1, and A is greater than 0, and the phase surplus duration of P6, P2 are 0, P1, P6
A length of 0 when the ring surplus of ring locating for a length of A when the ring surplus of locating ring, P2, P5, then a length of 0 when the surplus of barrier 1.
Since P6 is the last one phase in barrier 1, green light will judge whether the P2 simultaneously to let pass terminates before terminating, only P2
Green light at the end of, the green light of P6 could terminate, cause the practical duration of the green light of P6 to be greater than the initial duration of green light of P6, because
This, although a length of A when the ring surplus of ring locating for P1, P6, its surplus duration is passive due to the initial duration of the green light of P6
Extend, offseted with the phase surplus duration of P1, therefore the barrier surplus duration of barrier 1 should be ring locating for P2, P5
Ring surplus duration, as 0.
In above scheme, if the phase type of phase is when coordinating phase, before phase green light is opened, to increase the phase
The initial duration of green light, phase surplus duration when increased before a length of phase and the barrier surplus duration before the phase
With, phase surplus duration before the phase and the barrier surplus duration before the phase and can be zero, and according to increase
Duration afterwards controls the traffic of the phase.For example, P1, P2, P6 in barrier 1 are non-association in conjunction with Fig. 1 and Fig. 2
Phase modulation position, P5 are to coordinate phase；P7, P3, P8 in barrier 2 are non-coordinating phase, and P4 is to coordinate phase.The green light of P1 is initial
Duration is greater than the initial duration of green light of P5.In a control cycle duration, when barrier surplus of barrier 1, a length of A, A were greater than 0,
The green light of P7 terminates in advance in barrier 2, when phase surplus of P7 a length of B, B is greater than 0, before the green light of P4 starts at this time, determines
A length of A when barrier surplus before the phase, when phase surplus before the phase a length of B, then the practical duration of the green light of P4
The initial duration of the green light of at least phase and A and B's and.
Likewise, in order to guarantee that the control cycle duration of intersection is totally constant, the last one phase in barrier
When to coordinate phase, also need whether judgement has a coordination phase with what the coordination phase was let pass simultaneously, and according to the coordination phase
The coordination phase let pass simultaneously carries out traffic control.
Specifically, if the phase type of phase be coordinate phase when, and the phase be in barrier locating for the phase most
The latter phase then judges whether the green light of the coordination phase with the phase in the phase let pass with barrier and simultaneously is tied
Beam, if so, terminate the green light of the phase, the otherwise association in the phase for being in the phase with barrier and letting pass simultaneously
At the end of the green light of phase modulation position, terminate the green light of the phase.
The above method is described below by a specific embodiment.
As shown in figure 4, the embodiment of the present invention provides a kind of traffic lights self adaptive control flow diagram.
Step 401, whether the phase that judgement is currently let pass before green light is opened is to coordinate phase, if so, going to step
402, otherwise go to step 407；
Step 402, increase the initial duration of green light of the phase；
Phase surplus duration when increased before a length of phase and the barrier surplus duration before the phase and, and
The sum of barrier surplus duration before phase surplus duration and the phase before the phase is set to zero；
Step 403, when the phase is let pass, whether the initial duration of green light after judging the phase increase terminates, if so,
Go to step 404；
Step 404, judge whether the phase is the last one phase in barrier locating for the phase, if so, going to step
405, otherwise go to step 406；
Step 405, judging the green light of the coordination phase with the phase in the phase let pass with barrier and simultaneously is
No end, if so, terminate the green light of the phase, otherwise in the phase for being in the phase with barrier and letting pass simultaneously
Coordination phase green light at the end of, terminate the green light of the phase, and go to step 406；
Step 406, start next phase to let pass, go to step 401；
Step 407, judge whether the vehicle flowrate in the phase is greater than default vehicle flowrate, if it is not, then going to step 408；
Step 408, judge whether the phase is the last one phase in barrier locating for the phase, if it is not, then going to step
Rapid 409, otherwise go to step 410；
Step 409, terminate the phase green light, and determine the phase surplus time of the phase, go to step 406；
Step 410, judge to be in the phase let pass with barrier and simultaneously whether have coordination phase with the phase, if
It is then to go to step 411, otherwise goes to step 412；
Step 411, judge whether terminate in the green light for the coordination phase let pass with barrier and simultaneously with the phase, if
It is then to terminate the green light of the phase, otherwise, in the coordination phase being in the phase in the phase let pass with barrier and simultaneously
At the end of the green light of position, terminate the green light of the phase, and go to step 413；
Step 412, judge to be in the phase let pass whether there is vehicle flowrate to be greater than institute with barrier and simultaneously with the phase
The non-coordinating phase for stating default vehicle flowrate, if it is not, then terminating the green light of the phase, and goes to step 413；
Step 413, it determines the barrier surplus duration of barrier locating for the phase, and goes to step 406.
For above method process, the embodiment of the present invention also provides a kind of traffic lights adaptive controller, the dress
The particular content set is referred to above method implementation, and details are not described herein.
As shown in figure 5, the embodiment of the present invention provides a kind of traffic lights adaptive controller structure chart, the device packet
It includes:
Determination unit 501 is being controlled for obtaining the phase type of each phase and each phase in intersection
The initial duration of green light in period, the phase type include coordinating phase and non-coordinating phase, include at least one in each ring
A coordination phase coordinates the practical duration of green light that phase controls in the period at one and is greater than or equal to the green light for coordinating phase
Initial duration；
Control unit 502, for controlling a phase in intersection described in the period for one, in the phase
Green light during, the phase is located at according to the phase type of the phase, the magnitude of traffic flow of the phase and the phase
Position in barrier locating for position judges whether to carry out traffic control according to the initial duration of green light of the phase, if it is not, then basis
The practical duration of the green light of the phase carries out traffic control.
Preferably, the determination unit 501 is also used to:
Determine the traffic intensity of each phase of the intersection；
For a ring of the intersection, the maximum N number of phase of traffic intensity in the ring is determined as coordinating
Phase in the ring in addition to the maximum N number of phase of traffic intensity is determined as non-coordinating phase by phase, wherein N be greater than
Or the positive integer equal to 1.
Preferably, the determination unit 501 is specifically used for:
The traffic intensity of the intersection is occupied according to the traffic intensity of each barrier of the intersection
The initial duration of green light of each barrier of intersection described in ratio-dependent；
For a phase in the intersection, occupied according to the traffic intensity of the phase same with the phase
Barrier and with the traffic intensity of all phases of ring add up sum ratio-dependent described in phase control the period in green light it is initial
Duration.
Preferably, described control unit 502 is specifically used for:
When the phase type of the phase is non-coordinating phase, judge whether the vehicle flowrate in the phase is greater than default vehicle
Flow judges whether the phase is the phase if the vehicle flowrate in the phase is less than or equal to the default vehicle flowrate
The last one phase terminates if the phase is not the last one phase in barrier locating for the phase in barrier locating for position
The green light of the phase；
If the vehicle flowrate in the phase is less than or equal to default vehicle flowrate, and the phase is barrier locating for the phase
In the last one phase, then judge whether to terminate the phase according to being in the phase let pass with barrier and simultaneously with the phase
Green light green light.
Preferably, described control unit 502 is specifically used for:
Judgement is in the phase let pass with barrier and simultaneously whether have coordination phase with the phase, if it is not, then judging
Whether be in the phase let pass with barrier and simultaneously with the phase has vehicle flowrate to be greater than the non-coordinating of the default vehicle flowrate
Phase, if being in the phase let pass with barrier and simultaneously with the phase does not have vehicle flowrate to be greater than the non-of the default vehicle flowrate
Coordinate phase, then terminates the green light of the phase；If being in the phase let pass with barrier and simultaneously with the phase has coordination
Phase then judges whether terminate in the green light for the coordination phase let pass with barrier and simultaneously with the phase, if the coordination
The green light of phase terminates, then terminates the green light of the phase, otherwise, is being in the phase let pass with barrier and simultaneously with the phase
At the end of the green light of coordination phase in position, terminate the green light of the phase.
Preferably, described control unit 502 is also used to:
At the beginning of determining that the phase surplus duration of the phase, the phase surplus duration of the phase are equal to the green light of the phase
The difference of beginning duration and the practical duration of green light；
Judgement is in same barrier with the phase, and whether has coordination phase in the phase after the phase, if
Be, then by the phase surplus duration increase of the phase give the phase be in barrier and be located at after the phase the
One coordination phase, and the phase surplus duration of the phase is given into the phase in increase and is in barrier and positioned at described
First coordination phase postposition after phase is zero, otherwise determines the phase institute according to the phase surplus duration of the phase
The barrier surplus duration increase is given the phase and is in ring and positioned at the phase by the barrier surplus duration for locating barrier
First coordination phase later, and the barrier surplus duration increase is given into the phase and is in ring and positioned at the phase
First coordination phase postposition after position is zero.
Preferably, described control unit 502 is also used to:
If the phase type of phase is coordination phase, and the phase is the last one phase in barrier locating for the phase
Position then judges whether the green light of the coordination phase with the phase in the phase let pass with barrier and simultaneously terminates, if so,
Then terminate the green light of the phase, otherwise in the coordination phase being in the phase let pass with barrier and simultaneously with the phase
At the end of green light, terminate the green light of the phase.
Preferably, described control unit 502 is specifically used for:
Cumulative by the surplus duration for all non-coordinating phases being in the barrier in each ring is used as the ring surplus
Duration；
Using the smallest ring surplus duration in ring surplus duration each in the barrier as the barrier surplus duration of the barrier.
In conclusion the method and device provided according to embodiments of the present invention, according to the phase type of the phase, described
The position that the magnitude of traffic flow of phase and the phase are located in barrier locating for the phase judges whether according to the phase
The initial duration of green light carries out traffic control.Non-coordinating phase, can be in the vehicle flowrate of the phase no more than pre- during green light
If terminating in advance green light when vehicle flowrate, and the phase duration of surplus is increased to first coordination phase after the phase
Position, to realize automatic adjusument traffic lights, while being able to maintain the control cycle duration of traffic lights generally
Do not change, self adaptive control is carried out to traffic lights according to Real-Time Traffic Volume to realize.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of traffic lights self-adaptation control method, which is characterized in that this method comprises:
When green light of the phase type and each phase of each phase in the control period is initial in acquisition intersection
Long, the phase type includes coordinating phase and non-coordinating phase, includes at least a coordination phase in each ring, coordinates phase
It is greater than or equal to the initial duration of green light for coordinating phase in the practical duration of green light that one controlled in the period；Wherein, each
The phase type of phase is determined according to the traffic intensity of phase each in intersection；
The phase controlled in intersection described in the period for one, during the green light of the phase, according to institute
The position that the phase type of phase, the magnitude of traffic flow of the phase and the phase are located in barrier locating for the phase is stated to sentence
It is disconnected whether traffic control to be carried out according to the initial duration of green light of the phase, if it is not, when then practical according to the green light of the phase
It is long to carry out traffic control；Specifically, judging the vehicle flowrate in the phase when phase type of the phase is non-coordinating phase
Whether it is greater than default vehicle flowrate, if the vehicle flowrate in the phase is less than or equal to the default vehicle flowrate, judges the phase
Whether position is the last one phase in barrier locating for the phase, if the phase is not last in barrier locating for the phase
A phase then terminates the green light of the phase；If the vehicle flowrate in the phase is less than or equal to default vehicle flowrate, and the phase
Position is the last one phase in barrier locating for the phase, then according to the phase for being in the phase with barrier and letting pass simultaneously
Judge whether to terminate the green light of the phase, specifically, judgement and the phase are in barrier and in the phases let pass simultaneously
Whether coordination phase is had, if it is not, then judging to be in the phase let pass with barrier and simultaneously whether have vehicle flowrate with the phase
Greater than the non-coordinating phase of the default vehicle flowrate, if being in the phase let pass with barrier and simultaneously with the phase does not have vehicle
Flow is greater than the non-coordinating phase of the default vehicle flowrate, then terminates the green light of the phase.
2. the method as described in claim 1, which is characterized in that determine each phase in the control period according to following manner
The initial duration of green light:
The ratio of the traffic intensity of the intersection is occupied according to the traffic intensity of each barrier of the intersection
Determine the initial duration of green light of each barrier of the intersection；
For a phase in the intersection, occupied and the same barrier of the phase according to the traffic intensity of the phase
And with green light initial duration of the phase in the control period described in the ratio-dependent of the cumulative sum of the traffic intensity of all phases of ring.
3. the method as described in claim 1, which is characterized in that further include:
If being in the phase let pass with barrier and simultaneously with the phase has coordination phase, judgement is in same with the phase
Barrier and whether the green light for the coordination phase let pass simultaneously terminates terminates the phase if the green light for coordinating phase terminates
The green light of position, otherwise, at the end of the green light for the coordination phase being in the phase in the phase let pass with barrier and simultaneously,
Terminate the green light of the phase.
4. method as claimed in claim 1 or 3, which is characterized in that after the green light for terminating the phase, further includes:
The phase surplus duration of the phase is determined, when the phase surplus duration of the phase is initial equal to the green light of the phase
The long difference with the practical duration of green light；
Judgement is in same barrier with the phase, and whether has coordination phase in the phase after the phase, if so,
The phase surplus duration increase of the phase is given into the phase in first with barrier and after the phase
Coordinate phase, and the phase surplus duration of the phase is given into the phase in increase and is in barrier and positioned at the phase
First coordination phase postposition later is zero；Otherwise screen locating for the phase is determined according to the phase surplus duration of the phase
The barrier surplus duration increase is given the phase and is in ring and after the phase by the barrier surplus duration of barrier
First coordination phase, and by the barrier surplus duration increase give the phase be in ring and be located at the phase it
First coordination phase postposition afterwards is zero.
5. the method as described in claim 1, which is characterized in that further include:
If the phase type of phase is coordination phase, and the phase is the last one phase in barrier locating for the phase,
Then judge whether the green light of the coordination phase with the phase in the phase let pass with barrier and simultaneously terminates, if so,
Terminate the green light of the phase, otherwise in the green of the coordination phase being in the phase let pass with barrier and simultaneously with the phase
At the end of lamp, terminate the green light of the phase.
6. method as claimed in claim 4, which is characterized in that described according to the determination of the phase surplus duration of the phase
The barrier surplus duration of barrier locating for phase, comprising:
Cumulative by the surplus duration for all non-coordinating phases being in the barrier in each ring is used as the ring surplus duration；
Using the smallest ring surplus duration in ring surplus duration each in the barrier as the barrier surplus duration of the barrier.
7. a kind of traffic lights adaptive controller, which is characterized in that the device includes:
Determination unit, for obtaining in intersection the phase type of each phase and each phase in the control period
The initial duration of green light, the phase type includes coordinating phase and non-coordinating phase, and a coordination is included at least in each ring
When phase, the practical duration of green light that coordination phase controls in the period at one are initial more than or equal to the green light for coordinating phase
It is long；Wherein, the phase type of each phase is determined according to the traffic intensity of phase each in intersection；
Control unit, for controlling a phase in intersection described in the period for one, according to the phase of the phase
The position that position type, the magnitude of traffic flow of the phase and the phase are located in barrier locating for the phase judges whether basis
The initial duration of the green light of the phase carries out traffic control, if it is not, then carrying out traffic according to the practical duration of the green light of the phase
Control；Specifically, it is pre- to judge whether the vehicle flowrate in the phase is greater than when the phase type of the phase is non-coordinating phase
If vehicle flowrate, if the vehicle flowrate in the phase is less than or equal to the default vehicle flowrate, judge whether the phase is institute
The last one phase in barrier locating for phase is stated, if the phase is not the last one phase in barrier locating for the phase,
Terminate the green light of the phase；If the vehicle flowrate in the phase is less than or equal to default vehicle flowrate, and the phase is described
The last one phase in barrier locating for phase then judges whether according to being in the phase let pass with barrier and simultaneously with the phase
Terminate the green light of the phase, specifically, judgement is in the phase let pass with barrier and simultaneously whether have association with the phase
Phase modulation position, whether if it is not, then judging to be in the phase let pass with barrier and simultaneously with the phase, to have vehicle flowrate to be greater than described
The non-coordinating phase of default vehicle flowrate, if being in the phase with barrier and not having vehicle flowrate to be greater than in the phase let pass simultaneously
The non-coordinating phase of the default vehicle flowrate, then terminate the green light of the phase.
8. device as claimed in claim 7, which is characterized in that the determination unit is specifically used for:
The ratio of the traffic intensity of the intersection is occupied according to the traffic intensity of each barrier of the intersection
Determine the initial duration of green light of each barrier of the intersection；
For a phase in the intersection, occupied and the same barrier of the phase according to the traffic intensity of the phase
And with green light initial duration of the phase in the control period described in the ratio-dependent of the cumulative sum of the traffic intensity of all phases of ring.
9. device as claimed in claim 7, which is characterized in that described control unit is specifically also used to:
If being in the phase let pass with barrier and simultaneously with the phase has coordination phase, judgement is in same with the phase
Barrier and whether the green light for the coordination phase let pass simultaneously terminates terminates the phase if the green light for coordinating phase terminates
The green light of position, otherwise, at the end of the green light for the coordination phase being in the phase in the phase let pass with barrier and simultaneously,
Terminate the green light of the phase.
10. the device as described in claim 7 or 9, which is characterized in that described control unit is also used to:
The phase surplus duration of the phase is determined, when the phase surplus duration of the phase is initial equal to the green light of the phase
The long difference with the practical duration of green light；
Judgement is in same barrier with the phase, and whether has coordination phase in the phase after the phase, if so,
The phase surplus duration increase of the phase is given into the phase in first with barrier and after the phase
Coordinate phase, and the phase surplus duration of the phase is given into the phase in increase and is in barrier and positioned at the phase
First coordination phase postposition later is zero；Otherwise screen locating for the phase is determined according to the phase surplus duration of the phase
The barrier surplus duration increase is given the phase and is in ring and after the phase by the barrier surplus duration of barrier
First coordination phase, and by the barrier surplus duration increase give the phase be in ring and be located at the phase it
First coordination phase postposition afterwards is zero.
11. device as claimed in claim 7, which is characterized in that described control unit is also used to:
If the phase type of phase is coordination phase, and the phase is the last one phase in barrier locating for the phase,
Then judge whether the green light of the coordination phase with the phase in the phase let pass with barrier and simultaneously terminates, if so,
Terminate the green light of the phase, otherwise in the green of the coordination phase being in the phase let pass with barrier and simultaneously with the phase
At the end of lamp, terminate the green light of the phase.
12. device as claimed in claim 10, which is characterized in that described control unit is specifically used for:
Cumulative by the surplus duration for all non-coordinating phases being in the barrier in each ring is used as the ring surplus duration；
Using the smallest ring surplus duration in ring surplus duration each in the barrier as the barrier surplus duration of the barrier.
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| CN105374217A (en) * | 2015-12-13 | 2016-03-02 | 安徽科力信息产业有限责任公司 | Signal lamp self-adaptive control method based on road intersection average saturation |
| CN108648448B (en) * | 2018-05-03 | 2020-10-20 | 大连理工大学 | Induction type coordination signal autonomous control method |
| CN111105629A (en) * | 2018-10-29 | 2020-05-05 | 杭州海康威视系统技术有限公司 | Road traffic signal control method, system, signal controller and electronic equipment |
| CN112785858B (en) * | 2021-02-19 | 2023-06-16 | 阿里巴巴集团控股有限公司 | Traffic control method and device and electronic equipment |
| CN113516857B (en) * | 2021-04-19 | 2022-08-16 | 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 |
| CN113160583B (en) * | 2021-04-20 | 2022-07-08 | 山东九昌重工科技有限公司 | Intelligent traffic command method and system for intersection |
| 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 |
| CN114973741A (en) * | 2022-06-17 | 2022-08-30 | 浙江大华技术股份有限公司 | Abnormal data processing method and device, storage medium and electronic device |
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| CN104933874A (en) | 2015-09-23 |
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