CN106710252A - Self-adaptation control method and system for traffic flow anti-overflow at signal-controlled intersection - Google Patents
Self-adaptation control method and system for traffic flow anti-overflow at signal-controlled intersection Download PDFInfo
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- CN106710252A CN106710252A CN201710090916.4A CN201710090916A CN106710252A CN 106710252 A CN106710252 A CN 106710252A CN 201710090916 A CN201710090916 A CN 201710090916A CN 106710252 A CN106710252 A CN 106710252A
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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 invention provides a self-adaptation control method and system for traffic flow anti-overflow at a signal-controlled intersection. The self-adaptation control method for the traffic flow anti-overflow at the signal-controlled intersection comprises the steps of judging whether a queue overflow phenomenon happens at a downstream intersection; when the queue overflow phenomenon happens, detecting the remaining green light time of a current release phase, and detecting the queue overflow situation of the next phase which is adjacent to the current release phase; carrying out anti-overflow self-adaptation control on the traffic flow of the current release phase according to the remaining green light time; carrying out adjustment on the phase sequences of the next phase and a follow-up target phase, so as to carry out anti-overflow self-adaptation control on the traffic flow, wherein the follow-up target phase is positioned behind the current release phase and is not adjacent to the current release phase, and the queue overflow situation of the downstream intersection of the phase does not meet the preparatory condition. According to the method, the traffic flow anti-overflow self-adaptation control can be realized at the signal-controlled intersection, and the self-adaptation control effect can be improved.
Description
Technical field
It is anti-overflow the present invention relates to municipal intelligent traffic control technology field, more particularly to a kind of signal controlled junctions traffic flow
Go out self-adaptation control method and system.
Background technology
In recent years, with city vehicle guaranteeding organic quantity increase sharply, urban highway traffic faces larger pressure.And
And, because the spacing between partial intersection mouthful is shorter, signal timing dial is unreasonable or peak period, easily occur due to signal
Control causes to queue up and spills into the phenomenon of upstream crossing, on the one hand causes the waste of green time, on the other hand also result in
The intersecting direction in trip crossing, so as to cause the intersection congestion of intersection, causes periphery in the possible impassable situation of green time
The chain reaction of intersection.
In correlation technique, installed at the crossing inlet road upstream maximum queuing of control of signal controlled junctions detector with
Realize being controlled the spilling of traffic flow, but cause traffic due to setting the problems such as improper, maintenance is improper in real process
The anti-spilled control effect of stream is bad.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of anti-spilled Self Adaptive Control side of signal controlled junctions traffic flow
Method, can realize the anti-spilled Self Adaptive Control of signal controlled junctions traffic flow, and lifting Self Adaptive Control effect.
It is another object of the present invention to propose a kind of anti-spilled adaptive control system of signal controlled junctions traffic flow.
To reach above-mentioned purpose, the signal controlled junctions traffic flow that first aspect present invention embodiment is proposed is anti-spilled adaptive
Control method is answered, including：Judge whether downstream road junction occurs queuing spillover；When there is the queuing spillover, inspection
Survey the green light remaining time of current clearance phase, and detect that the queuing of the next phase adjacent with the current clearance phase is overflowed
Situation；Traffic flow according to the green light remaining time to the current clearance phase carries out anti-spilled Self Adaptive Control；It is based on
The queuing spilling situation is adjusted to the phase sequence of next phase and succeeding target phase, is carried out with to the traffic flow
Anti-spilled Self Adaptive Control；Wherein, the succeeding target phase is：It is current with described after the current clearance phase
Clearance phase is non-conterminous, and the succeeding target phase queuing overflow situation be unsatisfactory for it is described pre-conditioned.
The anti-spilled self-adaptation control method of signal controlled junctions traffic flow that first aspect present invention embodiment is proposed, passes through
The green light remaining time of current clearance phase is detected, and detects that feelings are overflowed in the queuing of the next phase adjacent with current clearance phase
Condition, and traffic flow according to green light remaining time to current clearance phase carries out anti-spilled Self Adaptive Control, is overflow based on queuing up
Artificial situation is adjusted to the phase sequence of next phase and succeeding target phase, and anti-spilled Self Adaptive Control is carried out with to traffic flow,
The no-spill Self Adaptive Control of signal controlled junctions traffic flow, and lifting Self Adaptive Control effect can be realized.
To reach above-mentioned purpose, the signal controlled junctions traffic flow that second aspect present invention embodiment is proposed is anti-spilled adaptive
Control system is answered, including：Overflow checking module, for judging whether downstream road junction occurs queuing spillover；Signal control master
Machine, works as when there is the queuing spillover, detecting the green light remaining time of current clearance phase, and detecting with described
Situation is overflowed in the queuing of the adjacent next phase of preceding clearance phase；Current clearance phase control module, for according to the green light
Traffic flow of the remaining time to the current clearance phase carries out anti-spilled Self Adaptive Control；Follow-up clearance phase control module,
For being adjusted to the phase sequence of next phase and succeeding target phase based on the queuing spilling situation, with to the friendship
It is through-flow to carry out anti-spilled Self Adaptive Control；Wherein, the succeeding target phase is：After the current clearance phase, with
The current clearance phase is non-conterminous, and the succeeding target phase queuing overflow situation be unsatisfactory for it is described pre-conditioned.
The anti-spilled adaptive control system of signal controlled junctions traffic flow that second aspect present invention embodiment is proposed, passes through
The green light remaining time of current clearance phase is detected, and detects that feelings are overflowed in the queuing of the next phase adjacent with current clearance phase
Condition, and traffic flow according to green light remaining time to current clearance phase carries out anti-spilled Self Adaptive Control, is overflow based on queuing up
Artificial situation is adjusted to the phase sequence of next phase and succeeding target phase, and anti-spilled Self Adaptive Control is carried out with to traffic flow,
The no-spill Self Adaptive Control of signal controlled junctions traffic flow, and lifting Self Adaptive Control effect can be realized.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow of the anti-spilled self-adaptation control method of signal controlled junctions traffic flow that one embodiment of the invention is proposed
Schematic diagram；
Fig. 2 is the stream of the anti-spilled self-adaptation control method of signal controlled junctions traffic flow that another embodiment of the present invention is proposed
Journey schematic diagram；
Fig. 3 is the schematic diagram of a scenario of the anti-spilled Self Adaptive Control of traffic flow in the embodiment of the present invention；
Fig. 4 is the stream of the anti-spilled self-adaptation control method of signal controlled junctions traffic flow that another embodiment of the present invention is proposed
Journey schematic diagram；
Fig. 5 is the structure of the anti-spilled adaptive control system of signal controlled junctions traffic flow that one embodiment of the invention is proposed
Schematic diagram；
Fig. 6 is the knot of the anti-spilled adaptive control system of signal controlled junctions traffic flow that another embodiment of the present invention is proposed
Structure schematic diagram.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.Conversely, this
Inventive embodiment includes all changes fallen into the range of the spiritual and intension of attached claims, modification and is equal to
Thing.
Fig. 1 is the flow of the anti-spilled self-adaptation control method of signal controlled junctions traffic flow that one embodiment of the invention is proposed
Schematic diagram.
Referring to Fig. 1, the method includes：
S11：Judge whether downstream road junction occurs queuing spillover.
Alternatively, in some embodiments, referring to Fig. 2, judge whether downstream road junction occurs queuing spillover, including：
S21：Obtain the vehicle parking time in the detection zone of downstream road junction；
S22：Judge whether the vehicle parking time reaches the first preset time threshold, if so, performing S23, otherwise, repetition is held
Row S21.
S23：Judge that downstream road junction occurs queuing spillover, and trigger S12.
In an embodiment of the present invention, the first preset time threshold can pre-set, the first preset time threshold
Can be, for example, 5s.
Further, the first preset time threshold can be by the anti-spilled adaptive control system of signal controlled junctions traffic flow
The program of dispatching from the factory preset, or, it is also possible to by the user of the anti-spilled adaptive control system of signal controlled junctions traffic flow
The demand of the anti-spilled control of traffic flow according to actual cities is configured, and this is not restricted.
By setting the first preset time threshold, whether sent out based on the first preset time threshold real-time judge downstream road junction
Raw queuing spillover, the referring to property of decision condition is high, and judges that precision is high.
Referring to Fig. 3, Fig. 3 is the schematic diagram of a scenario of the anti-spilled Self Adaptive Control of traffic flow in the embodiment of the present invention, for two
Individual adjacent intersection A and B, is susceptible to queue up because the magnitude of traffic flow is larger and overflowed by the direction of A to B, be therefore, it can to B crossings
The traffic flow in A to B sections carry out anti-spilled Self Adaptive Control.The direction at A crossings to B crossings, can represent a kind of traffic flow
Direction illustrate, or can also be other, this is not restricted.
In an embodiment of the present invention, detection zone can be, for example, A crossings entrance driveway, or, detection zone can also
For example, the entrance driveway at each crossing, realizes the anti-spilled Self Adaptive Control to signal controlled junctions traffic flow generalization.
For example, the high-definition camera of electronic police can be installed in A crossings entrance driveway, or in each crossing entrance driveway peace
The high-definition camera of electronic police is filled, and is provided for detecting the virtual coil of queuing spillover, the virtual coil thereon
Persistently monitor the vehicle queue and Parking situation in the section, i.e. can be captured by the camera set on electronic police
Video image, using image recognition analysis technology, and is superimposed using the intersection queuing overflow checking function of virtual coil, realizes
Whether queuing spillover occurs to intersection carries out real-time detection, and is sent out to the front end embedded host at crossing and control centre
Send corresponding testing result.
For example, A crossings entrance driveway installs the high-definition camera of electronic police, virtual coil thereon is examined to the entrance driveway
The vehicle parking time surveyed in region carries out real-time detection, when virtual coil detects the vehicle parking time reaches 5 seconds, judges
Generation queuing spillover, then, testing result can in real time be uploaded to the signal control main frame of this crossing and downstream road junction,
Testing result is uploaded to command centre simultaneously, this is not restricted.
The video image captured by the camera set on electronic police, superposition is arranged using the intersection of virtual coil
Team's overflow checking function, whether realization occurs queuing spillover to intersection carries out real-time detection, existing by integration
Equipment, what's new module virtual coil realizes the real-time anti-spilled Self Adaptive Control of signal controlled junctions traffic flow, effectively carries
The instantaneity of anti-spilled Self Adaptive Control is risen, therefore, ensure the anti-spilled Self Adaptive Control effect of signal controlled junctions traffic flow.
S12：When there is queuing spillover, detect the green light remaining time of current clearance phase, and detect with it is current
Situation is overflowed in the queuing of the adjacent next phase of clearance phase.
In an embodiment of the present invention, referring to Fig. 3, when judging that A crossings entrance driveway occurs queuing spillover, if A roads
When the phase of mouth is the state of current clearance, the phase at A crossings as current clearance phase can not be restricted to this.
In the embodiment of the present invention example is carried out by current clearance phase of the phase at the A crossings of Fig. 3.
In an embodiment of the present invention, green light remaining time can be, for example, that the green time of current clearance phase is
30s, current clearance phase has currently been let pass 21s, then accordingly, green light remaining time is 9s, and this is not restricted.
In an embodiment of the present invention, referring to Fig. 3, using the phase at A crossings as current clearance phase example, in current
Next phase after clearance phase and adjacent with current clearance phase can for example, next phase at A crossings.
In an embodiment of the present invention, for example, the vehicle of the corresponding green time clearance of phase based on B crossings so that
The current vehicle of queuing spillover overflows length and keeps the constant or increased situation, the situation can be referred to as queuing up and overflow
Situation.
S13：Traffic flow according to green light remaining time to current clearance phase carries out anti-spilled Self Adaptive Control.
S14：The phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, with to traffic flow
Carry out anti-spilled Self Adaptive Control.
Wherein, succeeding target phase is：It is non-conterminous with current clearance phase after current clearance phase, and subsequently
The queuing spilling situation of target phase is unsatisfactory for pre-conditioned.
Alternatively, it is pre-conditioned to be in some embodiments：Based on the vehicle that the corresponding green time of phase is let pass so that
The current vehicle of queuing spillover overflows length to be increased.
In an embodiment of the present invention, can perform built-in anti-spilled control and calculate using the signal control main frame at A crossings
Method, the green light remaining time of the current clearance phase of detection trigger, and the detection trigger next phase adjacent with current clearance phase
Queuing overflow situation, and then, the traffic flow according to green light remaining time to current clearance phase carries out anti-spilled self-adaptive controlled
System, and the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, then, according to adjustment
Phase sequence afterwards is sent to the Signalized control module at the corresponding crossing of each phase, by the Signalized control module to signal lamp
It is controlled, anti-spilled Self Adaptive Control is carried out with to traffic flow, this is not restricted.
In an embodiment of the present invention, traffic is flowed into by being based on the green light remaining time of current clearance phase in real time
The anti-spilled Self Adaptive Control of row, and, the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation
It is whole, anti-spilled Self Adaptive Control is carried out with to traffic flow, can accelerate to dredge the section that queuing spillover occurs in real time
Lead, the clearance efficiency of vehicle is currently overflowed in lifting to queuing spillover, lift anti-spilled Self Adaptive Control effect.
In the present embodiment, by detecting the green light remaining time of current clearance phase, and detect and current clearance phase phase
Situation is overflowed in the queuing of adjacent next phase, and traffic flow according to green light remaining time to current clearance phase carry out it is anti-overflow
Go out Self Adaptive Control, the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, with to traffic
Stream carries out anti-spilled Self Adaptive Control, can realize the no-spill Self Adaptive Control of signal controlled junctions traffic flow, and lifting is certainly
Suitable solution effect.
Fig. 4 is the stream of the anti-spilled self-adaptation control method of signal controlled junctions traffic flow that another embodiment of the present invention is proposed
Journey schematic diagram.
Referring to Fig. 4, the method includes：
S401：Obtain the vehicle parking time in the detection zone of downstream road junction.
S402：Judge whether the vehicle parking time reaches the first preset time threshold, if so, performing S403, otherwise, repeat
Perform S401.
In an embodiment of the present invention, the first preset time threshold can pre-set, the first preset time threshold
Can be, for example, 5s.
Further, the first preset time threshold can be by the anti-spilled adaptive control system of signal controlled junctions traffic flow
The program of dispatching from the factory preset, or, it is also possible to by the user of the anti-spilled adaptive control system of signal controlled junctions traffic flow
The demand of the anti-spilled control of traffic flow according to actual cities is configured, and this is not restricted.
By setting the first preset time threshold, whether sent out based on the first preset time threshold real-time judge downstream road junction
Raw queuing spillover, the referring to property of decision condition is high, and judges that precision is high.
S403：Judge that downstream road junction occurs queuing spillover.
Referring to Fig. 3, for example, A crossings entrance driveway installs the high-definition camera of electronic police, virtual coil thereon is to this
The vehicle parking time in entrance driveway detection zone carries out real-time detection, and 5 are reached when virtual coil detects the vehicle parking time
During the second, judge queuing spillover, then, testing result can in real time be uploaded to the signal of this crossing and downstream road junction
Control main frame, while testing result is uploaded into command centre, is not restricted to this.
The video image captured by the camera set on electronic police, superposition is arranged using the intersection of virtual coil
Team's overflow checking function, whether realization occurs queuing spillover to intersection carries out real-time detection, existing by integration
Equipment, what's new module virtual coil realizes the real-time anti-spilled Self Adaptive Control of signal controlled junctions traffic flow, effectively carries
The instantaneity of anti-spilled Self Adaptive Control is risen, therefore, ensure the anti-spilled Self Adaptive Control effect of signal controlled junctions traffic flow.
S404：The green light remaining time of current clearance phase is detected, and detects the next phase adjacent with current clearance phase
Situation is overflowed in the queuing of position.
In an embodiment of the present invention, referring to Fig. 3, when judging that A crossings entrance driveway occurs queuing spillover, if A roads
When the phase of mouth is the state of current clearance, the phase at A crossings as current clearance phase can not be restricted to this.
In the embodiment of the present invention example is carried out by current clearance phase of the phase at the A crossings of Fig. 3.
In an embodiment of the present invention, green light remaining time can be, for example, that the green time of current clearance phase is
30s, current clearance phase has currently been let pass 21s, then accordingly, green light remaining time is 9s, and this is not restricted.
In an embodiment of the present invention, referring to Fig. 3, using the phase at A crossings as current clearance phase example, in current
Next phase after clearance phase and adjacent with current clearance phase can for example, next phase at A crossings.
In an embodiment of the present invention, for example, the vehicle of the corresponding green time clearance of phase based on B crossings so that
The current vehicle of queuing spillover overflows length and keeps the constant or increased situation, the situation can be referred to as queuing up and overflow
Situation.
By detecting the green light remaining time of current clearance phase in real time, and, detect adjacent with current clearance phase
Next phase queuing overflow situation, carry out anti-spilled Self Adaptive Control with to traffic flow, can accelerate to occur queue up overflow
The section for elephant occur is dredged in real time, and the clearance efficiency of vehicle is currently overflowed in lifting to queuing spillover.
In an embodiment of the present invention, can perform built-in anti-spilled control and calculate using the signal control main frame at A crossings
Method, the green light remaining time of the current clearance phase of detection trigger, and the detection trigger next phase adjacent with current clearance phase
Queuing overflow situation, and then, the traffic flow according to green light remaining time to current clearance phase carries out anti-spilled self-adaptive controlled
System, and the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, step as described below.
S405：Judge that whether green light remaining time, more than the second preset time threshold, if so, performing S407, otherwise performs
S406。
In an embodiment of the present invention, the second preset time threshold can pre-set, the second preset time threshold
Can be, for example, 3s.
Further, the second preset time threshold can be by the anti-spilled adaptive control system of signal controlled junctions traffic flow
The program of dispatching from the factory preset, or, it is also possible to by the user of the anti-spilled adaptive control system of signal controlled junctions traffic flow
The demand of the anti-spilled control of traffic flow according to actual cities is configured, and this is not restricted.
By setting the second preset time threshold, the friendship based on second preset time threshold in real time to current clearance phase
Through-flow to carry out anti-spilled Self Adaptive Control, anti-spilled control algolithm is simply easily realized, is effectively saved and is performed signal controlled junctions friendship
The Installed System Memory that through-flow anti-spilled self-adaptation control method is consumed, further lifts the instantaneity of anti-spilled Self Adaptive Control.
S406：The green time to current clearance phase does not carry out cutoff process.
S407：When green time is continued into the second preset time threshold, cutoff process is carried out to green time.
For example, the signal control main frame at A crossings receive occur queuing spillover testing result after, trigger in it
The anti-spilled control algolithm put detects the green light remaining time of current clearance phase, if the green light remaining time is less than or equal to
Second preset time threshold (3s), then do not carry out cutoff process to the green time of current clearance phase, waits current clearance phase
The green time of position continues executions, if the green light remaining time, more than the second preset time threshold (3s), green time is held
During continuous 3s, cutoff process is carried out to green time.
S408：Judge whether queuing spilling situation meets pre-conditioned, if so, performing S410, otherwise, perform S409.
Alternatively, it is pre-conditioned to be：Based on the vehicle that the corresponding green time of phase is let pass so that queuing spillover is worked as
Preceding vehicle overflows length to be increased.
In an embodiment of the present invention, it is pre-conditioned to pre-set.
Further, it is pre-conditioned can be by the journey of dispatching from the factory of the anti-spilled adaptive control system of signal controlled junctions traffic flow
Sequence presets, or, it is also possible to by the user of the anti-spilled adaptive control system of signal controlled junctions traffic flow according to reality
The demand of the anti-spilled control of traffic flow in city is configured, and this is not restricted.
By being configured to pre-conditioned in advance so that the anti-spilled Self Adaptive Control side of signal controlled junctions traffic flow
Method is more flexible, can adapt to the individual demand of the anti-spilled control of traffic flow in different cities, the applicable model of method for improving
Enclose.
Alternatively, in an embodiment of the present invention, it can be determined that whether queuing spilling situation meets pre-conditioned, that is, judge
Whether the queuing spilling situation of next phase is based on the vehicle that the corresponding green time of phase is let pass so that queuing spillover is worked as
Preceding vehicle overflows length to be increased, or, it can also be the condition of other aggravation queuing spillovers that this is pre-conditioned, to this not
It is restricted.
S409：The phase sequence to next phase is not adjusted.
S410：Shifting treatment after being carried out to the phase sequence of next phase, and based on the 3rd preset time threshold in advance by follow-up mesh
The corresponding signal lamp of mark phase switches to green light.
For example, the signal control main frame at A crossings receive occur queuing spillover testing result after, trigger in it
The anti-spilled control algolithm put detects that situation is overflowed in the queuing of the next phase adjacent with current clearance phase, if next phase
Clearance will not cause that current vehicle overflows length and increases, then the phase sequence not to next phase is adjusted, if next phase
Let pass and cause that current vehicle overflows length and increases, then shifting treatment after being carried out to the phase sequence of next phase, and it is default based on the 3rd
The corresponding signal lamp of succeeding target phase is switched to green light by time threshold in advance.
Further, in an embodiment of the present invention, it is also possible to persistently detect that the queuing of each crossing entrance driveway is overflowed now
As, when the dissipation of queuing spillover is detected, then the initial green light time of phase, or initial phase sequence can be performed, or,
Green time that can also be after next signal lamp alternate cycle performs Self Adaptive Control, or after phase sequence, enters to it
Row compensation, so as to keep the uniformity of signal controlled junctions overall control.
For example, when the signal control main frame that downstream road junction enters road junction receives the testing result for producing queuing spillover
Afterwards, performing anti-spilled control algolithm carries out the anti-spilled Self Adaptive Control of traffic flow, for example, increasing the green letter for overflowing traffic flow direction
Than, with it is timely let pass overflow vehicle, and work as its upstream crossing enter road junction signal control main frame persistently receive generation queue up overflow
When there is the testing result of elephant, can continuously carry out anti-spilled control algolithm carries out the anti-spilled Self Adaptive Control of traffic flow, until
The queuing spillover that upstream crossing enters road junction dissipates.
In the present embodiment, by setting the first preset time threshold, it is based on the first preset time threshold real-time judge
No generation queuing spillover, the referring to property of decision condition is high, and judges that precision is high.By taking the photograph for being set on electronic police
As the video image that head is captured, superposition uses the intersection queuing overflow checking function of virtual coil, and realization is to intersection
No generation queuing spillover carries out real-time detection, and by integration existing device, what's new module virtual coil is realized
The real-time signal controlled junctions anti-spilled Self Adaptive Control of traffic flow, effectively lifts the instantaneity of anti-spilled Self Adaptive Control, because
This, ensures the anti-spilled Self Adaptive Control effect of signal controlled junctions traffic flow.By detecting the green of current clearance phase in real time
Lamp remaining time, and, detect that situation is overflowed in the queuing of the next phase adjacent with current clearance phase, carried out with to traffic flow
Anti-spilled Self Adaptive Control, can accelerate to dredge the section that queuing spillover occurs in real time, and lifting is overflowed to queuing up
Phenomenon currently overflows the clearance efficiency of vehicle.By being configured to pre-conditioned in advance so that the signal controlled junctions traffic
Flow that anti-spilled self-adaptation control method is more flexible, the personalized of the anti-spilled control of traffic flow that can adapt to different cities needs
Ask, the scope of application of method for improving.By detecting the green light remaining time of current clearance phase, and detect and current clearance phase
Situation is overflowed in the queuing of adjacent next phase, and traffic flow according to green light remaining time to current clearance phase is prevented
Self Adaptive Control is overflowed, the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, with to handing over
It is through-flow to carry out anti-spilled Self Adaptive Control, the anti-spilled Self Adaptive Control of signal controlled junctions traffic flow can be realized, and lifting is anti-
Overflow Self Adaptive Control effect.
Fig. 5 is the structure of the anti-spilled adaptive control system of signal controlled junctions traffic flow that one embodiment of the invention is proposed
Schematic diagram.
Referring to Fig. 5, the anti-spilled adaptive control system 500 of the signal controlled junctions traffic flow includes：Overflow checking module
501st, signal control main frame 502, current clearance phase control module 503, and follow-up clearance phase control module 504, wherein,
Overflow checking module 501, for judging whether downstream road junction occurs queuing spillover.
Alternatively, in some embodiments, referring to Fig. 6, overflow checking module 501, including：Video camera 5011, setting
Virtual coil 5012 on video camera, and embedded host 5013, wherein,
Virtual coil 5012, for the vehicle parking time in the detection zone for obtaining downstream road junction.
Embedded host 5013, for judging whether the vehicle parking time reaches the first preset time threshold, is reaching
During one preset time threshold, judge that downstream road junction occurs queuing spillover.
Signal control main frame 502, when the green light for when there is queuing spillover, detecting current clearance phase is remaining
Between, and detect that situation is overflowed in the queuing of the next phase adjacent with current clearance phase.
Current clearance phase control module 503, flows into for the traffic according to green light remaining time to current clearance phase
The anti-spilled Self Adaptive Control of row.
Alternatively, in some embodiments, referring to Fig. 6, current clearance phase control module 503, including：
First judging submodule 5031, for judging green light remaining time whether more than the second preset time threshold.
First control submodule 5032, for when less than or equal to the second preset time threshold, then not to currently putting
The green time of line phase carries out cutoff process, when more than the second preset time threshold, then green time is continued into second pre-
If during time threshold, cutoff process is carried out to green time.
Follow-up clearance phase control module 504, for based on queuing spilling situation to next phase and succeeding target phase
Phase sequence be adjusted, carry out anti-spilled Self Adaptive Control with to traffic flow.
Alternatively, in some embodiments, referring to Fig. 6, follow-up clearance phase control module 504, including：
Second judging submodule 5041, for judging whether queuing spilling situation meets pre-conditioned.
Second control submodule 5042, for when being unsatisfactory for pre-conditioned, the phase sequence to next phase not to be adjusted,
When meeting pre-conditioned, shifting treatment after being carried out to the phase sequence of next phase, and based on the 3rd preset time threshold in advance will after
The continuous corresponding signal lamp of target phase switches to green light.
Wherein, succeeding target phase is：It is non-conterminous with current clearance phase after current clearance phase, and subsequently
The queuing spilling situation of target phase is unsatisfactory for pre-conditioned.
Alternatively, in some embodiments, referring to Fig. 6, the anti-spilled adaptive control system of signal controlled junctions traffic flow
500 also include：
Current clearance phase signal lamp control module 505, when current clearance phase control module is by according to green light residue
Between current clearance phase signal lamp control module is controlled.
Follow-up clearance phase signal lamp control module 506, follow-up clearance phase control module is based on queuing spilling situation pair
After the phase sequence of next phase and succeeding target phase is adjusted, according to the follow-up clearance phase signal lamp of the phase ordered pair after adjustment
Control module is controlled.
Communication module 507, embedded host judge occur queuing spillover when, by communication module, using wired
The mode of communication, will produce the testing result of queuing spillover to send to signal control main frame, current clearance phase controlling mould
Block, and phase control module of subsequently letting pass.
It should be noted that to the anti-spilled Self Adaptive Control of signal controlled junctions traffic flow in earlier figures 1- Fig. 4 embodiments
The explanation of embodiment of the method is also applied for the anti-spilled adaptive control system of signal controlled junctions traffic flow of the embodiment
500, its realization principle is similar to, and here is omitted.
In the present embodiment, by detecting the green light remaining time of current clearance phase, and detect and current clearance phase phase
Situation is overflowed in the queuing of adjacent next phase, and traffic flow according to green light remaining time to current clearance phase carry out it is anti-overflow
Go out Self Adaptive Control, the phase sequence of next phase and succeeding target phase is adjusted based on queuing spilling situation, with to traffic
Stream carries out anti-spilled Self Adaptive Control, can realize the no-spill Self Adaptive Control of signal controlled junctions traffic flow, and lifting is certainly
Suitable solution effect.
It should be noted that in the description of the invention, term " first ", " second " etc. are only used for describing purpose, without
It is understood that to indicate or implying relative importance.Additionally, in the description of the invention, unless otherwise indicated, the implication of " multiple "
It is two or more.
Any process described otherwise above or method description in flow chart or herein is construed as, and expression includes
It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussion suitable
Sequence, including function involved by basis by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each several part of the invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In implementation method, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If for example, realized with hardware, and in another embodiment, can be with well known in the art
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
The rapid hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, during each functional unit in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is to realize in the form of software function module and as independent production marketing or when using, it is also possible to which storage is in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of anti-spilled self-adaptation control method of signal controlled junctions traffic flow, it is characterised in that comprise the following steps：
Judge whether downstream road junction occurs queuing spillover；
When there is the queuing spillover, the green light remaining time of current clearance phase is detected, and detect current with described
Situation is overflowed in the queuing of the adjacent next phase of clearance phase；
Traffic flow according to the green light remaining time to the current clearance phase carries out anti-spilled Self Adaptive Control；
The phase sequence of next phase and succeeding target phase is adjusted based on the queuing spilling situation, with to the friendship
It is through-flow to carry out anti-spilled Self Adaptive Control；
Wherein, the succeeding target phase is：After the current clearance phase, with the current clearance phase not phase
Neighbour, and the succeeding target phase queuing overflow situation be unsatisfactory for it is described pre-conditioned.
2. the anti-spilled self-adaptation control method of signal controlled junctions traffic flow as claimed in claim 1, it is characterised in that described
Judge whether downstream road junction occurs queuing spillover, including：
Obtain the vehicle parking time in the detection zone of downstream road junction；
Judge whether the vehicle parking time reaches the first preset time threshold；
When first preset time threshold is reached, judge that the downstream road junction occurs the queuing spillover.
3. the anti-spilled self-adaptation control method of signal controlled junctions traffic flow as claimed in claim 1, it is characterised in that described
Traffic flow according to the green light remaining time to the current clearance phase carries out anti-spilled Self Adaptive Control, including：
Judge the green light remaining time whether more than the second preset time threshold；
When less than or equal to second preset time threshold, then the green time not to the current clearance phase is carried out
Cutoff process；
When more than second preset time threshold, then when the green time being continued into second preset time threshold,
Cutoff process is carried out to the green time.
4. the anti-spilled self-adaptation control method of signal controlled junctions traffic flow as claimed in claim 1, it is characterised in that described
It is pre-conditioned to be：Based on the vehicle that the corresponding green time of the phase is let pass so that the current car of the queuing spillover
Overflow length increase.
5. the anti-spilled self-adaptation control method of signal controlled junctions traffic flow as described in claim 1 or 4, it is characterised in that
It is described the phase sequence of next phase and succeeding target phase is adjusted based on the queuing spilling situation, with to the friendship
It is through-flow to carry out anti-spilled Self Adaptive Control, including：
Judge whether the queuing spilling situation meets described pre-conditioned；
When being unsatisfactory for described pre-conditioned, the phase sequence to next phase is not adjusted；
When meeting described pre-conditioned, shifting treatment after being carried out to the phase sequence of next phase, and based on the 3rd Preset Time
The corresponding signal lamp of the succeeding target phase is switched to green light by threshold value in advance.
6. a kind of anti-spilled adaptive control system of signal controlled junctions traffic flow, it is characterised in that including：
Overflow checking module, for judging whether downstream road junction occurs queuing spillover；
Signal control main frame, for when there is the queuing spillover, detecting the green light remaining time of current clearance phase,
And detect that situation is overflowed in the queuing of the next phase adjacent with the current clearance phase；
Current clearance phase control module, prevents for the traffic flow according to the green light remaining time to the current clearance phase
Spilling carries out Self Adaptive Control；
Follow-up clearance phase control module, for based on the queuing spilling situation to next phase and succeeding target phase
Phase sequence be adjusted, carry out anti-spilled Self Adaptive Control with to the traffic flow；
Wherein, the succeeding target phase is：After the current clearance phase, with the current clearance phase not phase
Neighbour, and the succeeding target phase queuing overflow situation be unsatisfactory for it is described pre-conditioned.
7. the anti-spilled adaptive control system of signal controlled junctions traffic flow as claimed in claim 6, it is characterised in that described
Overflow checking module, including：Video camera, the virtual coil being arranged on the video camera, and embedded host,
Wherein,
The virtual coil, for the vehicle parking time in the detection zone for obtaining downstream road junction；
The embedded host, for judging whether the vehicle parking time reaches the first preset time threshold, reaching
When stating the first preset time threshold, judge that the downstream road junction occurs the queuing spillover.
8. the anti-spilled adaptive control system of signal controlled junctions traffic flow as claimed in claim 6, it is characterised in that described
Current clearance phase control module, including：
First judging submodule, for judging the green light remaining time whether more than the second preset time threshold；
First control submodule, for when less than or equal to second preset time threshold, then not put currently to described
The green time of line phase carries out cutoff process, when more than second preset time threshold, then holds the green time
When continuing second preset time threshold, cutoff process is carried out to the green time.
9. the anti-spilled adaptive control system of signal controlled junctions traffic flow as claimed in claim 6, it is characterised in that described
Follow-up clearance phase control module, including：
Second judging submodule, for judging whether the queuing spilling situation meets described pre-conditioned；
Second control submodule, for when being unsatisfactory for described pre-conditioned, the phase sequence to next phase not to be adjusted,
When meeting described pre-conditioned, shifting treatment after being carried out to the phase sequence of next phase, and based on the 3rd preset time threshold
The corresponding signal lamp of the succeeding target phase is switched into green light in advance.
10. the anti-spilled adaptive control system of signal controlled junctions traffic flow as claimed in claim 6, it is characterised in that also
Including：
Current clearance phase signal lamp control module, when the current clearance phase control module is by according to green light residue
Between the current clearance phase signal lamp control module is controlled；
Follow-up clearance phase signal lamp control module, the follow-up clearance phase control module is based on the queuing spilling situation pair
After the phase sequence of next phase and succeeding target phase is adjusted, the follow-up clearance phase according to the phase ordered pair after adjustment
Position Signalized control module is controlled.
The 11. anti-spilled adaptive control system of signal controlled junctions traffic flow as described in claim any one of 6-10, it is special
Levy and be, also include：
Communication module, the embedded host, by the communication module, is used when judging to occur the queuing spillover
The mode of wire communication, by it is described generation queuing spillover testing result send to the signal control main frame, it is described work as
Preceding clearance phase control module, and the follow-up clearance phase control module.
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