Invention content
In order to overcome above-mentioned the problems of the prior art, the present invention, which proposes a kind of online tramcar, to be arrived on scheduleStand and do not interfere the online tramcar preference strategy control system and its method of public transport.
The online tramcar preference strategy control system and its method of the present invention is specific as follows：
The online tramcar preference strategy control system, is mainly characterized by, and the system is examined including tramcarIt surveys device and flow collection module, the tramcar detector is connected with semaphore, the flow collection module and oneControl centre is connected, and the semaphore is also connected with the control centre, wherein,
The tramcar detector is detecting tramcar and obtain its speed and position；
The flow collection module is obtaining the congestion at tested crossing；
The control centre to according to the tramcar detector and the flow collection module acquisitionTramcar information carries out preference strategy control to the tramcar.
Preferably, the tramcar detector include be set to tested crossing request detector, confirm detector,Stop detector and clear detection device, and the request detector, confirm the installation point of detector and the detector that stops according toThe tramcar drives into tested crossing and is set gradually, and its distance with tested crossing to the sequence before tested crossing is driven out toBe matched with the speed of the tramcar, the clear detection device be set to the tramcar be driven out to behind tested crossing byOne empty a little.
More preferably, it is described to empty the length of wagon for being a little at least the tramcar with the distance at tested crossing.
Preferably, table at the time of the semaphore is stored with the tramcar, each station down time table and shouldThe phase-sequence meter of semaphore.
Preferably, the control centre includes an override requests comprehensive judgment module, the override requests comprehensive descision mouldBlock is also associated with a tramcar information acquisition module and a tramcar data interaction module, and the override requests integrateJudgment module also connects a crossing flow collection module by a crossing flow preprocessing module.
This realizes the method for preference strategy control according to system as described above, is mainly characterized by, the tramcarPreferential answering grade include can preferentially, first priority and not preferentially, and the method includes the following steps：
(1) tramcar described in enters the detection range of the tramcar detector, tramcar hairAn override requests signal is sent to the semaphore；
(2) the override requests signal is transmitted to the control centre by the semaphore described in；
(3) the congestion shape that the control centre described in passes through the current tested crossing of acquisition and the crossing on the tested crossing peripheryCondition with reference to the override requests information of its reception, obtains the preferential answering grade of current tramcar, and by the preferential answering gradeIt is sent to the semaphore；
(4) semaphore described in is according to the received preferential answering grade, with reference to gathering around for current tested crossingStifled situation obtains the possible strategy of presently described tramcar；
(5) semaphore described in is according to the possible strategy, current phase information and the letter of presently described tramcarThe phase-sequence meter of number machine judges the specific implementation strategy of presently described tramcar.
Preferably, the tramcar detector includes being set in turn in the request detector before tested crossing, confirmDetector, parking detector and clear detection device, and the step (1) is specially：
The tramcar passes through the request detector, and sends an override requests signal to the signalMachine, the override requests signal include the current delay grade of the tramcar.
Preferably, the step (3) is specially：
The control centre obtains currently tested crossing and the tested crossing week by the flow collection moduleThe congestion at the crossing on side, the override requests information with reference to described in it obtain the preferential answering grade of current tramcar, andThe preferential answering grade is sent to the semaphore, wherein, the preferential answering grade include can preferentially, it is absolute excellentIt is first and not preferential.
Preferably, the step (4) is specially：
The semaphore is according to the received preferential answering grade, with reference to the congestion shape at current tested crossingCondition obtains the possible strategy of presently described tramcar, wherein, the congestion at possible strategy and its corresponding current tested crossingSituation and the preferential answering grade are as follows：
Cur-rent congestion situation be normal and described current preference response grade for can be preferential when, the system canSemaphore is controlled to carry out green light and extends operation, red light early disconnected operation and phase adjustment operations；
Cur-rent congestion situation be compared with congestion, and current preference response grade for can be preferential when, the systemControllable semaphore carries out green light and extends the early disconnected operation of operation and red light；
Cur-rent congestion situation be congestion, and the current preference response grade for can be preferential when, the system canSemaphore is controlled to carry out green light and extends operation；
When cur-rent congestion situation is that normal and described current preference responds grade as first priority, the system canControl semaphore carries out green light and extends operation, the disconnected operation of red light morning, phase adjustment operations and redirect phase operation；
Cur-rent congestion situation be compared with congestion, and when current preference response grade is first priority, the systemControllable semaphore carries out green light and extends operation, the disconnected operation of red light morning, phase adjustment operations and redirect phase operation；
Cur-rent congestion situation be congestion, and the current preference response grade be first priority when, the system canSemaphore is controlled to carry out green light and extends the early disconnected operation of operation, red light；
Cur-rent congestion situation is for normal, congestion or compared with congestion, and when current preference response grade is not preferential,The semaphore keeps current phase to work on by phase-sequence meter；
For cur-rent congestion situation to block, the semaphore keeps current phase to work on by phase-sequence meter.
Preferably, the step (5) is specially：
The semaphore is according to the possible strategy, current phase information and the semaphore of presently described tramcarPhase-sequence meter, judge the specific implementation strategy of presently described tramcar, wherein, judge that current specific implementation strategy includesFollowing steps：
(5.1) semaphore described in judges whether current phase is tramcar phase, if it is, continuing step(5.2)；Otherwise continue step (5.5)；
(5.2) semaphore described in judges whether tramcar described under current phase can be tested crossing by this,If it is then the semaphore keeps current phase to work on by phase-sequence meter, otherwise continue step (5.3)；
(5.3) whether the semaphore judgement present feasible strategy described in, which includes green light, extends operation, if including continuingStep (5.3)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter；
(5.4) semaphore described in, which extends the phase, enables the tramcar to be tested road by this in the phaseMouthful, and continue the step (5.8)；
(5.5) semaphore described in judges whether next phase of current phase is tramcar phase, if it is, afterContinuous step (5.6)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter；
(5.6) whether the semaphore judgement present feasible strategy described in includes red light early disconnected operation, if it is, describedSemaphore is according to the tramcar from the detection range of the tramcar detector is driven into the time at arrival crossingThis phase is adjusted accordingly, current phase is carried out early break lets pass to the tramcar, and continue the step(5.8)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter, and continue step (5.7)；
(5.7) whether the semaphore judgement present feasible strategy described in includes phase adjustment operations, if it is, continuing to walkSuddenly (5.7), otherwise the semaphore current phase is kept to work on by phase-sequence meter；
(5.8) whether the semaphore judgement present feasible strategy described in includes redirecting phase operation, if including the letterCurrent phase can be kept to work on by phase-sequence meter for number machine until the current phase is completed, and jump to tramcar phase orThe semaphore determines whether to adjust accordingly current phase and next phase according to the override requests information, withThe phase is made to reach tramcar phase, and continues step (5.8)；Otherwise the semaphore preferentially please according to describedInformation is asked to determine whether to adjust accordingly current phase and next phase, so that the phase reaches tramcar phasePosition, and continue step (5.8)；
(5.8) phase invariant that is adjusted of semaphore holding described in, until the tramcar is by described clearEmpty detector, the clear detection device send an empty signal to the semaphore, and the semaphore removes current preference planSpecific implementation strategy under slightly controlling, and work on by phase-sequence meter, if the semaphore passes through institute from the tramcarThe request detector stated starts, and by a time threshold T, and receives the empty signal, then the semaphore entersTimeout treatment, the timeout treatment remove the specific implementation strategy under current preference policy control for the semaphore, andIt works on by phase-sequence meter.
Using the online tramcar preference strategy control system and its method, due to the use of tramcar detector to havingState of the rail electric car near semaphore is detected, and preferential with the tramcar described in the tramcar detector acquisitionRequest, the system analyzes the possible strategy of the tramcar by control centre, with reference to prolonging for the tramcarAccidentally situation, the congestion at current crossing, the preferential answering grade of the tramcar and current phase information and phase-sequence meter,Its specific implementation strategy is analyzed current tramcar, makes tramcar in the situation for reducing the influence to public transport as far as possibleUnder, realize arriving at a station on schedule for the tramcar.Compared with general tramcar priority acccess control strategy, effect of the invention is thatEnsure to have taken into account while tramcar arrives at a station on schedule in the passage situations of public vehicles, tramcar section operational process, carryIt is preceding that dynamic phasing adjustment is carried out to semaphore, ensure that tramcar can pass through, first priority and relatively excellent in normal direction phaseIt is first combined, ensures tramcar priority pass process, public vehicles are influenced minimum and considering the preferential feelings of tramcarUnder condition, while consider that tramcar passes through wagon flow states in crossing multiple near crossing, its preferential answering grade of comprehensive descision.
Specific embodiment
The present invention will be described in order to better illustrate, enumerate below some embodiments to carry out the present invention it is furtherExplanation.
Referring to Fig. 2, the online tramcar preference strategy control system, is mainly characterized by, the system includesTramcar detector and flow collection module, the tramcar detector are connected with semaphore, and the flow is adoptedCollection module is connected with a control centre, and the semaphore is also connected with the control centre, wherein,
The tramcar detector is detecting tramcar and obtain its speed and position；
The flow collection module is obtaining the congestion at tested crossing；
The control centre to according to the tramcar detector and the flow collection module acquisitionTramcar information carries out preference strategy control to the tramcar.
The tramcar detector includes being set to the request detector at tested crossing, confirms detector, parking inspectionDevice and clear detection device are surveyed, and the installation point of the request detector, confirmation detector and the detector that stops is according to describedTramcar drives into tested crossing and is set gradually, and its distance with tested crossing is matched with to the sequence before tested crossing is driven out toThe speed of the tramcar, the clear detection device be set to the tramcar be driven out to behind tested crossing by it is one clearNull point.
Described empties the length of wagon for being a little at least the tramcar with the distance at tested crossing.
Table, respectively station down time table and the semaphore at the time of semaphore is stored with the tramcarPhase-sequence meter.
Referring to Fig. 3, the control centre includes an override requests comprehensive judgment module, the override requests comprehensive descisionModule is also associated with a tramcar information acquisition module and a tramcar data interaction module, and the override requests are comprehensiveIt closes judgment module and a crossing flow collection module is also connected by a crossing flow preprocessing module.
Referring to Fig. 1, the method that preference strategy control is realized according to system as described above, is mainly characterized by, it shouldThe preferential answering grade of tramcar include can preferentially, first priority and not preferential, and the method includes following stepSuddenly：
(1) tramcar described in enters the detection range of the tramcar detector, tramcar hairAn override requests signal is sent to the semaphore；
(2) the override requests signal is transmitted to the control centre by the semaphore described in；
(3) the congestion shape that the control centre described in passes through the current tested crossing of acquisition and the crossing on the tested crossing peripheryCondition with reference to the override requests information of its reception, obtains the preferential answering grade of current tramcar, and by the preferential answering gradeIt is sent to the semaphore；
(4) semaphore described in is according to the received preferential answering grade, with reference to gathering around for current tested crossingStifled situation obtains the possible strategy of presently described tramcar；
(5) semaphore described in is according to the possible strategy, current phase information and the letter of presently described tramcarThe phase-sequence meter of number machine judges the specific implementation strategy of presently described tramcar.
The tramcar detector include being set in turn in the request detector before tested crossing, confirm detector,Stop detector and clear detection device, and the step (1) is specially：
The tramcar passes through the request detector, and sends an override requests signal to the signalMachine, the override requests signal include the current delay grade of the tramcar.
The step (3) is specially：
The control centre obtains currently tested crossing and the tested crossing week by the flow collection moduleThe congestion at the crossing on side, the override requests information with reference to described in it obtain the preferential answering grade of current tramcar, andThe preferential answering grade is sent to the semaphore, wherein, the preferential answering grade include can preferentially, it is absolute excellentIt is first and not preferential.
The step (4) is specially：
The semaphore is according to the received preferential answering grade, with reference to the congestion shape at current tested crossingCondition obtains the possible strategy of presently described tramcar, wherein, the congestion at possible strategy and its corresponding current tested crossingSituation and the preferential answering grade are as follows：
Cur-rent congestion situation be normal and described current preference response grade for can be preferential when, the system canSemaphore is controlled to carry out green light and extends operation, red light early disconnected operation and phase adjustment operations；
Cur-rent congestion situation be compared with congestion, and current preference response grade for can be preferential when, the systemControllable semaphore carries out green light and extends the early disconnected operation of operation and red light；
Cur-rent congestion situation be congestion, and the current preference response grade for can be preferential when, the system canSemaphore is controlled to carry out green light and extends operation；
When cur-rent congestion situation is that normal and described current preference responds grade as first priority, the system canControl semaphore carries out green light and extends operation, the disconnected operation of red light morning, phase adjustment operations and redirect phase operation；
Cur-rent congestion situation be compared with congestion, and when current preference response grade is first priority, the systemControllable semaphore carries out green light and extends operation, the disconnected operation of red light morning, phase adjustment operations and redirect phase operation；
Cur-rent congestion situation be congestion, and the current preference response grade be first priority when, the system canSemaphore is controlled to carry out green light and extends the early disconnected operation of operation, red light；
Cur-rent congestion situation is for normal, congestion or compared with congestion, and when current preference response grade is not preferential,The semaphore keeps current phase to work on by phase-sequence meter；
For cur-rent congestion situation to block, the semaphore keeps current phase to work on by phase-sequence meter.
The step (5) is specially：
The semaphore is according to the possible strategy, current phase information and the semaphore of presently described tramcarPhase-sequence meter, judge the specific implementation strategy of presently described tramcar, wherein, judge that current specific implementation strategy includesFollowing steps：
(5.1) semaphore described in judges whether current phase is tramcar phase, if it is, continuing step(5.2)；Otherwise continue step (5.5)；
(5.2) semaphore described in judges whether tramcar described under current phase can be tested crossing by this,If it is then the semaphore keeps current phase to work on by phase-sequence meter, otherwise continue step (5.3)；
(5.3) whether the semaphore judgement present feasible strategy described in, which includes green light, extends operation, if including continuingStep (5.3)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter；
(5.4) semaphore described in, which extends the phase, enables the tramcar to be tested road by this in the phaseMouthful, and continue the step (5.8)；
(5.5) semaphore described in judges whether next phase of current phase is tramcar phase, if it is, afterContinuous step (5.6)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter；
(5.6) whether the semaphore judgement present feasible strategy described in includes red light early disconnected operation, if it is, describedSemaphore is according to the tramcar from the detection range of the tramcar detector is driven into the time at arrival crossingThis phase is adjusted accordingly, current phase is carried out early break lets pass to the tramcar, and continue the step(5.8)；Otherwise the semaphore keeps current phase to work on by phase-sequence meter, and continue step (5.7)；
(5.7) whether the semaphore judgement present feasible strategy described in includes phase adjustment operations, if it is, continuing to walkSuddenly (5.7), otherwise the semaphore current phase is kept to work on by phase-sequence meter；
(5.8) whether the semaphore judgement present feasible strategy described in includes redirecting phase operation, if including the letterCurrent phase can be kept to work on by phase-sequence meter for number machine until the current phase is completed, and jump to tramcar phase orThe semaphore determines whether to adjust accordingly current phase and next phase according to the override requests information, withThe phase is made to reach tramcar phase, and continues step (5.8)；Otherwise the semaphore preferentially please according to describedInformation is asked to determine whether to adjust accordingly current phase and next phase, so that the phase reaches tramcar phasePosition, and continue step (5.8)；
(5.8) phase invariant that is adjusted of semaphore holding described in, until the tramcar is by described clearEmpty detector, the clear detection device send an empty signal to the semaphore, and the semaphore removes current preference planSpecific implementation strategy under slightly controlling, and work on by phase-sequence meter, if the semaphore passes through institute from the tramcarThe request detector stated starts, and by a time threshold T, and receives the empty signal, then the semaphore entersTimeout treatment, the timeout treatment remove the specific implementation strategy under current preference policy control for the semaphore, andIt works on by phase-sequence meter.
In a specific embodiment, if tramcar is on major trunk roads or the main line for needing green wave, first reallyDetermine tramcar departure time-table, each station down time, tramcar travel speed, it is green to prepare the departure interval according to data aboveWave scheme.
After dispatching a car, pulled in down time according to tramcar position, estimated arrival crossing time and vehicle, dynamic adjustment hasThe rail electric car crossing phase difference to be passed through.
To semaphore into horizontal phasing control in 2~3 periods before the estimated arrival crossing of tramcar, and in railIt is adjusted into Mobile state during electric car form, while in view of pulling in the factors such as down time with the presence or absence of tramcar.
Tramcar close on crossing set 4 tramcar detectors, respectively request detector, confirm detector,Stop detector and clear detection device.
In 70km/h or so, the request detector is laid in tramcar and enters intersection side tramcar speedAt before stop line 250 meters；Confirm that Loop detector layout enters intersection direction 90 meters before stop line in tramcarPlace；Parking Loop detector layout enters intersection direction at before stop line 3 meters in tramcar；Clear detection device has been laid inRail electric car is driven out to length of the intersection direction apart from an intersection at least row tramcar.More than request detector confirms detectionThe specific distance at device, parking detector and clear detection device and crossing can be also adjusted according to actual needs.
In a specific embodiment, the method for the online tramcar preference strategy control system includes the following steps：
(1) after tramcar enters request detector, which sends override requests signal to semaphore；
(2) the override requests signal that tramcar is sent out is transmitted to centring system by semaphore；
(3) whether the data that control centre is acquired by the flow collection module of junction perimeter, comprehensive descision give railElectric car preferential answering, feeds back to semaphore.
(4) semaphore according to control centre give whether give preferential and its tramcar be delayed in itself grade carry out it is comprehensiveClose the possible strategy judged under present case；
(5) semaphore obtains current specific implementation strategy according to present feasible strategy, current phase information and phase-sequence meter.
Referring to Fig. 4, in a kind of specific embodiment, include green light in the possible strategy of current tramcar and extend behaviourMake, red light early disconnected operation, phase adjustment operations and when redirecting phase operation, which obtains according to phase information and phase-sequence meterCurrent specific implementation strategy is as follows：
(5.1) semaphore described in judges whether current phase is that tramcar phase (is considered to have done green wave feelings in advanceUnder condition, it is more likely that currently phase or next phase are exactly the preferential phase of tramcar), if it is, continuing step(5.2)；Otherwise continue step (5.3)；
(5.2) semaphore described in judges under current control mode that can tramcar pass through crossing, if canThen to be run by former scheme；If not all right, if can if extend this phase duration, it is not all right to be carried out by former scheme.
(5.3) semaphore described in judges whether next phase is tramcar phase, if so, and being not present on the roadBarrier then can adjust current phase according to the tramcar estimated time for reaching crossing, terminate current phase ahead of time and let pass, such asFruit is no, then enters step (5.4).
(5.4) semaphore described in is delayed grade according to tramcar, centring system permits Rule of judgment and whether there isThe conditions comprehensive descision such as barrier, if time permission can shorten respective phase, tramcar phase needed for arrival；Or terminateTramcar phase directional is jumped to after current phase.
In a kind of specific embodiment, the adjustment of tramcar phase, which has to reach in tramcar, confirms detectorBefore, otherwise tramcar carries out brake deceleration operation, until giving clearance or parking.
After being adjusted in place, keep the phase invariant after adjustment, until tramcar reaches clear detection device, restore from master controlSystem.
If being adjusted in place rear tramcar never enters clear detection device, time-out is waited for, restores autonomous after time-outControl.
If adjustment, the result is that not preferential, tramcar is also let pass during next clearance.
Using the online tramcar preference strategy control system and its method, due to the use of tramcar detector to havingState of the rail electric car near semaphore is detected, and preferential with the tramcar described in the tramcar detector acquisitionRequest, the system analyzes the possible strategy of the tramcar by control centre, with reference to prolonging for the tramcarAccidentally situation, the congestion at current crossing, the preferential answering grade of the tramcar and current phase information and phase-sequence meter,Its specific implementation strategy is analyzed current tramcar, makes tramcar in the situation for reducing the influence to public transport as far as possibleUnder, realize arriving at a station on schedule for the tramcar.Compared with general tramcar priority acccess control strategy, effect of the invention is thatEnsure to have taken into account while tramcar arrives at a station on schedule in the passage situations of public vehicles, tramcar section operational process, carryIt is preceding that dynamic phasing adjustment is carried out to semaphore, ensure that tramcar can pass through, first priority and relatively excellent in normal direction phaseIt is first combined, ensures tramcar priority pass process, public vehicles are influenced minimum and considering the preferential feelings of tramcarUnder condition, while consider that tramcar passes through wagon flow states in crossing multiple near crossing, its preferential answering grade of comprehensive descision.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still makeVarious modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrativeAnd not restrictive.