CN109484438A - Intersect turning-back capacity analysis method behind station based on truck traffic train control system - Google Patents
Intersect turning-back capacity analysis method behind station based on truck traffic train control system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
- B61L2027/204—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation using Communication-based Train Control [CBTC]
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Abstract
The present invention intersects turning-back capacity analysis method after providing a kind of station provided in an embodiment of the present invention, the described method includes: acquisition train executes the key point intersected in exhumation process after standing in orbit, under the control of truck traffic train control system, train of turning back is obtained by the driving duration intersected in exhumation process between each key point after default driving sequence respectively execution station, the driving timing diagram for train of respectively turning back is generated according to the driving duration between each key point, turn-aound headway formula group is obtained according to the driving timing diagram, analysis result is obtained according to the turn-aound headway formula group, accomplish individually to control track switch resource using truck traffic system, reduce communication links, realize fining train tracking, to more shorter than intersecting the turn-aound headway time behind the station of CBTC system, with intersecting turning-back capacity behind stronger station, for the rule of new route Delineate meter provide decision support, can director shape design, wiring harness, meet operation with passenger flow change and adjust needs.
Description
Technical field
The present invention relates to intersect behind Train Control Technology field more particularly to a kind of station based on truck traffic train control system
Turning-back capacity analysis method.
Background technique
The rail traffic train control system quoted extensively at present is CBTC signal system.CBTC system is controlled with ground installation and is arranged
Vehicle operates to core, relies primarily on interlocking CI and is train route setting, prevents route conflict, gives train meter by zone controller ZC
The safe operation position for calculating mobile authorization prevents the dangerous situations such as collision from occurring.
By CBTC system control model and it is backward in technique restricted, in order to ensure safety, it has to sacrifice certain operation
Efficiency.The ability directly turned back behind performance exactly station is relatively low, and the ability turned back after standing is to restrict all fronts Train Interval
Key.
The train interval that CBTC system causes service ability to be difficult to break through 120 seconds because of itself controlling mechanism.By both reasonable
By analysis and operating practice, the ability turned back is tracked after standing and to intersect the ability turned back behind station roughly the same, intersects after standing and turns back
Do not have to significantly improve turn-aound headway as intersecting before station and turn back.Meanwhile when intersection is turned back after standing, four of couble crossover region
Track switch resource allocation must use to a train as a whole, and subsequent train can only wait four track switch resources all to discharge
Afterwards, it just can enter or be driven out to region of turning back.Exhumation process is turned back more complicated than tracking, therefore station is rarely employed in operating practice
Intersect afterwards and turns back.
Summary of the invention
The present invention intersects turning-back capacity analysis method after providing a kind of station based on truck traffic train control system, for solving
The above problem.
The embodiment of the present invention intersects turning-back capacity analysis method, packet after providing a kind of station based on truck traffic train control system
It includes:
It obtains train and executes the key point intersected behind station in exhumation process in orbit, the key point includes conventional key
Point and improvement key point, the key point of improving includes the default safety tracking being located between two track switches on uplink and downlink track
Location point, and bowed out on track and presetting safe trace location point, bend into rail turning back close to uplink path side turning back
Safe trace location point is preset on road and close to downing track side;
Under the control of truck traffic train control system, obtains after train of turning back executes station by default driving sequence respectively and intersect folding
Driving duration during returning between each key point;
The driving timing diagram for train of respectively turning back is generated according to the driving duration between each key point;
Formula group can be spaced by being turned back according to driving timing diagram acquisition;
Analysis result is obtained according to the turn-aound headway formula group.
As shown from the above technical solution, it is handed over behind a kind of station based on truck traffic train control system provided in an embodiment of the present invention
Turning-back capacity analysis method is pitched, the key point intersected in exhumation process after standing is executed in orbit by acquisition train, in vehicle vehicle
It communicates under train control system control, acquisition, which is turned back after train executes station by default driving sequence respectively, intersects each key in exhumation process
Driving duration between point generates the driving timing diagram for train of respectively turning back according to the driving duration between each key point, according to institute
It states driving timing diagram and obtains turn-aound headway formula group, analyzed according to the turn-aound headway formula group as a result, accomplishing using vehicle
Vehicle communication system individually controls track switch resource, reduces communication links, fining train tracking is realized, thus than CBTC system
The intersection turn-aound headway time is shorter after standing, and intersects turning-back capacity after having stronger station, provides for the planning and designing of new route
Decision support, can director shape design, wiring harness, meet operation with passenger flow change and adjust needs.
Detailed description of the invention
Fig. 1 is intersection turning-back capacity analysis side behind the station based on truck traffic train control system that one embodiment of the invention provides
The flow diagram of method;
Fig. 2 is standard site type schematic diagram of turning back behind the station that provides of one embodiment of the invention;
Fig. 3 is the driving timing diagram that one embodiment of the invention provides.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Fig. 1, which is shown after one embodiment of the invention provides a kind of station based on truck traffic train control system, intersects turning-back capacity
Analysis method, comprising:
S11, acquisition train execute the key point intersected in exhumation process after standing in orbit, and the key point includes conventional
Key point and improvement key point, the key point of improving includes the default safety being located between two track switches on uplink and downlink track
Trace location point, and turn back bow out on track and close to uplink path side preset safe trace location point, turn back it is curved
Safe trace location point is preset on into track and close to downing track side.
For step S11, it should be noted that in embodiments of the present invention, the train control system based on truck traffic is broken through
Current all rail traffic train control systems all rely on the natural mode that ground installation realizes Train Detection and Identification, by ZC, CI,
Trackside equipment is simplified, and vehicle-mounted realization Train Control is fully relied on.Train passes through the hands such as communication, initiative recognition, trackside contention for resource
Section come realize movable block, track switch control etc. functions, have higher safety, reliability, simultaneously because reduce communication and
Controlling unit cancels a route, and the new technologies such as dynamic tracing shorten interval, especially turn-aound headway, it is whole to improve route
Running body ability.Intersect turning-back capacity analysis method behind station described in the embodiment of the present invention, based on truck traffic column control system
System is improved for key point needed for turning-back capacity analysis.In the present embodiment, the key point includes conventional closes
Key point and improvement key point.
Standard site type schematic diagram of turning back is illustrated in figure 2 after standing, it can be seen from the figure that conventional key point is tradition CBTC
System transposition turning-back capacity key point required when analyzing, it may include:
A, the train that moves ahead enters the key point E in region of turning back;
B, train completion, which is turned back, sails out of the key point C in region of turning back;
C, uplink and downlink are turned back terminal O1, O2;
D, the rear car corresponding to forward stop-off point is disturbed point PoE, PoH;
E, the departure platform S that train drives into region of turning back.
It improves key point and analyzes when institute in turning-back capacity to be different from traditional train control system based on truck traffic train control system
The key point needed.
In the present embodiment, the protection of turn-back railroad switch needed for traditional CBTC system point (i.e. switch location point) is improved
Variation, it may be assumed that it is described improve key point include be located on uplink and downlink track between two track switches preset safe trace location point K,
J, and bowed out on track and presetting safe trace location point M, bend on track turning back close to uplink path side turning back
And safe trace location point H is preset close to downing track side.
S12, under the control of truck traffic train control system, acquisition is turned back after train executes station respectively by default driving sequence and is handed over
Pitch the driving duration in exhumation process between each key point.
For step S12, it should be noted that in embodiments of the present invention, all arrangements carry out turning-back capacity analysis
Train of turning back is based on truck traffic train control system when driving and completes walking process.All trains of turning back are by preset
Driving sequence is current.Driving sequence include driving tandem and turn back mode (bent into such as Fig. 2 directly go out W1-W7, it is straight to bow out
Z1-Z7).The purpose of the driving sequence is that there is no other column on the track guaranteed within the scope of the certain distance of target column front side
Vehicle.
In the present embodiment, the driving sequence can be straight for 1 vehicle, and 2 vehicles are bent into, and 1 vehicle bows out, and 3 vehicles are straight and 2 vehicles directly go out
It carries out simultaneously, 4 vehicles are bent into, and 2 vehicles bow out, and 4 vehicles directly go out, and 1 vehicle and 3 vehicle planning driving paths are identical, when 2 vehicles and identical 4 vehicle planning driving paths.
It follows that under normal circumstances, completing primary turn back analysis (analytical cycle) needs four trains.But sometimes for better
Needed for statistics driving duration and analysis, train of turning back can be increased.
Under the control of truck traffic train control system, obtains after train of turning back executes station by default driving sequence respectively and intersect folding
Driving duration during returning between each key point.As shown in Fig. 2, W1-W7 is to bend under straight way out between each key point
Driving duration, Z1-Z7 are the straight driving duration bowed out under mode between each key point.
S13, the driving timing diagram that train of respectively turning back is generated according to the driving duration between each key point.
For step S13, it should be noted that in embodiments of the present invention, corresponding each key point generation is arranged from top to bottom
The timing line of column;The driving duration turned back according to train of respectively turning back successively is drawn from top to bottom, generates driving timing diagram.Such as Fig. 3
It is shown, it can be seen that the driving timing diagram generated for the driving duration that above-mentioned illustrated driving sequence is counted.In figure, close
Key point without ' indicate headstock reach the point;Band ', indicate that the tailstock passes through the point.
S14, turn-aound headway formula group is obtained according to the driving timing diagram;
S15, analysis result is obtained according to the turn-aound headway formula group.
For step S14 and step S15, it should be noted that in embodiments of the present invention, held according to different driving sequences
Row intersects exhumation process, obtains different driving timing diagrams.It is public that different turn-aound headways is obtained according to different driving timing diagrams
Formula group.The driving timing diagram is carried out analyzing the turn-aound headway obtained between vehicle of turning back and bend into directly to go out in exhumation process respectively
Driving duration Wi, the straight driving duration Zi bowed out in exhumation process between each key point, uplink path between key point or
Driving tracking interval I (main track), track switch actuation time TT, down direction on downing track between two trains are turned back the stopping of platform
The correlation stood between time Dw;Turn-aound headway formula group is obtained according to the correlation.It is public according to the turn-aound headway
Formula group obtains the impact factor of the turn-aound headway between vehicle of turning back;The folding between vehicle of turning back is obtained according to the impact factor
The change type for returning interval, as analysis as a result, the change type can be variable interval, not changing distance etc..Implement in the present invention
In example, by taking driving sequence described above and timing diagram as an example, available turn-aound headway formula group is needed as follows:
Derivation process formula:
TT+W2+Z4+Z5=W5+I (1,2);
I (3,4)=W2+Z4+TT;
TT+I (main track)=I (tmp)+TT;
I (tmp)+W5=Z5+I (0,1);
I (0,1)=I (2,3);
I (2,3)=Z6+Dw1+Z7+W4.
Final formula:
I (1,2)=TT+W2+Z4+Z5-W5;
I (3,4)=W2+Z4+TT;
I (2,3)=I (main track)+W5-Z5;
I (2,3)=Z6+Dw+Z7+W4;
Excavate formula:
I (main track)=Dw+ (Z6+Z7+W4)-(W5-Z5);
Formula of turning back is tracked after standing:
I (tracking, which turns back to bend into, directly to go out)=W2+W3+W4+TT;
I (tracking turn back straight bow out)=Z2+Z3+Z4+TT.
I is by the turn-aound headway between the default vehicle of turning back driven a vehicle and sequentially travelled, and Wi is to bend into directly to go out in exhumation process
Driving duration between each key point, Zi be the straight driving duration bowed out in exhumation process between each key point, i 1,2,3,
4,5,6,7;I (main track) is the driving tracking interval on uplink path or downing track between two trains, when TT is that track switch acts
Between, Dw is that down direction is turned back dwell time of platform, and I (tmp) is that straight train goes out clear M point and goes out clear J point to train is bent into
Time interval.
In the present embodiment, the bottleneck turned back is I (1,2) i.e. that two trains, which are continuously bent into, bows out double crossover region
Runing time.This interval is fixed intervals.
I (2,3) is equal to main track tracking interval I (main track)+fixed value (W5-Z5).Because fixed value (W5-Z5) is smaller, I (2,
3) it is approximately equal to I (main track).
I (2,3) has two aspects to influence, and is on the one hand equal to the ability interval I (main track) of main track tracking;Another aspect and station
2 dwell time of platform Dw consistent difference is related.I (2,3) is variable interval.
Main track tracking interval I (main track) is related to platform 2 dwell time Dw consistent difference.So 2 dwell time of platform prolongs
Length will lead to main track tracking interval and be forced to extend.
Intersect turning-back capacity analysis method behind a kind of station based on truck traffic train control system provided in an embodiment of the present invention,
Execute the key point intersected in exhumation process after standing in orbit by acquisition train, under the control of truck traffic train control system,
Train of turning back is obtained by the driving duration intersected in exhumation process between each key point after default driving sequence respectively execution station, root
The driving timing diagram that train of respectively turning back is generated according to the driving duration between each key point, is turned back according to the driving timing diagram
It is spaced formula group, is analyzed according to the turn-aound headway formula group as a result, accomplishing using truck traffic system to track switch resource
Individually control, reduction communication links realize fining train tracking, thus than intersecting the turn-aound headway time behind the station of CBTC system
It is shorter, intersect turning-back capacity after there is stronger station, provide decision support for the planning and designing of new route, can director shape set
Meter, wiring harness meet the needs that operation changes with passenger flow and adjusted.
Using No. 16 northern stations Xian An He Qiao of Beijing Metro as example.Each timing duration data are as follows:
W2:44s;W3:12s;W4:31s; W5:4s
Z2:45s;Z3:12s;Z4:30s; Z5:4s
TT:16s.
It brings above-mentioned duration into I (1,2)=TT+W2+Z4+Z5-W5, obtains I (1,2)=90s.
Compared with CBTC system, truck traffic train control system optimizes the interval time in the following areas:
1) bending into train and going out clear A point position can mention to H point, and W2 saves 4 seconds.
2) 2 train of platform, which goes out clear C point position, can be advanced to J point, and W4 saves 4 seconds.
3) in truck traffic system, track switch resource can individually apply, individually control, and individually discharge.Two track switches bowed out
(track switch 2 and track switch 3 in Fig. 2) can fulfil track switch ahead of schedule and move.To save a TT time.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Those of ordinary skill in the art will appreciate that: the above embodiments are only used to illustrate the technical solution of the present invention., and
It is non-that it is limited;Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, either to part of or
All technical features are equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution this hair
Bright claim limited range.
Claims (6)
1. intersecting turning-back capacity analysis method behind a kind of station based on truck traffic train control system characterized by comprising
Obtain train and execute the key point intersected behind station in exhumation process in orbit, the key point include conventional key point with
Key point is improved, the key point of improving includes being located between two track switches to preset safe trace location on uplink and downlink track
Point, and bowed out on track and presetting safe trace location point, bend on track turning back close to uplink path side turning back
And safe trace location point is preset close to downing track side;
Under the control of truck traffic train control system, acquisition train of turning back is executed to intersect behind station respectively and was turned back by default driving sequence
Driving duration in journey between each key point;
The driving timing diagram for train of respectively turning back is generated according to the driving duration between each key point;
Turn-aound headway formula group is obtained according to the driving timing diagram;
Analysis result is obtained according to the turn-aound headway formula group.
2. the method according to claim 1, wherein the routine key point includes: that forward train entrance is turned back
The key position point in region, train complete to turn back sail out of region of turning back key position point, uplink and downlink turn back terminal, correspond to
The rear car in stop-off point of moving ahead is disturbed a little and the departure platform driven into region of turning back of train.
3. the method according to claim 1, wherein the driving duration according between each key point generates respectively
It turns back the driving timing diagram of train, comprising:
Corresponding each key point generates the timing line arranged from top to bottom;
The driving duration turned back according to train of respectively turning back successively is drawn from top to bottom, generates driving timing diagram.
4. the method according to claim 1, wherein described obtain turn-aound headway public affairs according to the driving timing diagram
Formula group, comprising:
The driving timing diagram is carried out analyzing the turn-aound headway obtained between vehicle of turning back and bend into directly to go out in exhumation process respectively
Driving duration Wi, the straight driving duration Zi bowed out in exhumation process between each key point, uplink path between key point or
Driving tracking interval I (main track), track switch actuation time TT, down direction on downing track between two trains are turned back the stopping of platform
The correlation stood between time Dw;
Turn-aound headway formula group is obtained according to the correlation.
5. according to the method described in claim 4, analyzing it is characterized in that, completing once to turn back using four trains, also, working as
Default driving sequence is that 1 vehicle is straight, and 2 vehicles are bent into, and 1 vehicle bows out, and 3 vehicles are straight and 2 vehicles directly go out while carrying out, and 4 vehicles are bent into, and 2 vehicles are curved
Out, 4 vehicles directly go out, and 1 vehicle and 3 vehicle planning driving paths are identical, when 2 vehicles and identical 4 vehicle planning driving paths, the turn-aound headway formula group packet
It includes:
I (1,2)=TT+W2+Z4+Z5-W5;
I (3,4)=W2+Z4+TT;
I (2,3)=I (main track)+W5-Z5;
I (2,3)=Z6+Dw+Z7+W4;
Wherein, I is by the turn-aound headway between the default vehicle of turning back driven a vehicle and sequentially travelled, and Wi is to bend into directly to go out in exhumation process
Driving duration between each key point, Zi be the straight driving duration bowed out in exhumation process between each key point, i 1,2,3,
4,5,6,7;I (main track) is the driving tracking interval on uplink path or downing track between two trains, when TT is that track switch acts
Between, Dw is that down direction is turned back dwell time of platform.
6. according to the method described in claim 5, it is characterized in that, analyzed according to the turn-aound headway formula group as a result,
Include:
The impact factor of the turn-aound headway between vehicle of turning back is obtained according to the turn-aound headway formula group;
The change type that the turn-aound headway between vehicle of turning back is obtained according to the impact factor, as analysis result.
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CN113401186B (en) * | 2021-06-30 | 2024-04-09 | 通号城市轨道交通技术有限公司 | Switch resource management method and device |
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CN114475723A (en) * | 2021-12-30 | 2022-05-13 | 交控科技股份有限公司 | Post-station foldback method and device, electronic equipment and readable storage medium |
CN114475723B (en) * | 2021-12-30 | 2024-04-30 | 交控科技股份有限公司 | Post-station turn-back method and device, electronic equipment and readable storage medium |
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