CN116853321A - Screen-free method based on vehicle-to-vehicle communication - Google Patents
Screen-free method based on vehicle-to-vehicle communication Download PDFInfo
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- CN116853321A CN116853321A CN202311127084.0A CN202311127084A CN116853321A CN 116853321 A CN116853321 A CN 116853321A CN 202311127084 A CN202311127084 A CN 202311127084A CN 116853321 A CN116853321 A CN 116853321A
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- 238000004891 communication Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000010367 cloning Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 108091081062 Repeated sequence (DNA) Proteins 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000013459 approach Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/22—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in two directions over the same pair of rails
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a screening-free method based on vehicle-to-vehicle communication, which comprises the following steps: after front-end screening and communication of a communication train with the length not smaller than twice the minimum length are completed, UCT envelope is generated based on CT envelope and occupation/idle state information of a metering section; then, extending the UCT envelope range forwards/backwards according to the occupied/idle state information of the axle counting section; merging or splitting UCT envelopes when extending; and finally, carrying out screening-free treatment on the split CT envelope meeting the screening-free condition based on the method. The invention realizes rapid screening after the degradation recovery communication of the train through envelope generation, extension and merging or splitting treatment, and solves the problems of slow recovery and upgrading of the train and influence on the operation efficiency.
Description
Technical Field
The invention relates to the technical field of communication management of rail transit, in particular to a screening-free method based on vehicle-to-vehicle communication.
Background
Along with the diversified development of train and railway technologies, rail traffic is of more and more types, is not only widely applied to long-distance land transportation, but also widely applied to medium-short-distance urban public transportation, and is a type of transportation means or transportation system for running vehicles on specific rails, and has the advantages of large transportation capacity, high speed, dense shifts, safety, comfort, high standard point rate, all weather, low transportation cost, energy conservation, environmental protection and the like, and is taken as one of public transportation, and is closely related to the travel of people at present.
Currently, in rail transit, the train upgrading or maintenance operation level depends on train screening, and when the train is interrupted by communication due to faults, after communication is established again, the ground subsystem needs to screen the train again, if the train is in a large-length section, the train can be screened only after the train runs until the end point of the off-axis section is smaller than the minimum train length possible to exist in a line, so that the efficiency is extremely low, and the running of the whole train is influenced.
Disclosure of Invention
The invention provides a screening-free method based on vehicle-to-vehicle communication, which comprises the following specific technical scheme:
s1: generating a UCT envelope;
specifically, after front-end screening is completed and communication of a communication train (non-dormant train) with the length not smaller than twice the minimum length is interrupted, UCT envelope is generated based on CT envelope and occupation/idle state information of a metering section;
s2: after UCT envelope is generated, extending the UCT envelope range forwards/backwards according to the occupied/idle state information of the axle counting section;
s3: merging or splitting UCT envelopes;
when the UCT envelope encounters another UCT envelope during extension, judging whether a set merging condition is met, and if so, merging the current two UCT envelopes; when the UCT envelope extends, if a vehicle resumes communication in the UCT envelope, a set mode is selected to split the UCT envelope;
the set modes comprise a splitting mode and a cloning mode;
s4: and carrying out screening-free treatment on the split CT envelope meeting the screening-free condition.
The screen-free conditions are as follows:
when the front/rear train ID of the split CT envelope is 0 or the front/rear train ID of the split CT envelope is not 255 (hidden train ID), and the front/rear train of the split CT envelope inherits a train recovering communication from the original UCT envelope.
The CT envelope is a train envelope which is normal in communication and can be continuously monitored by a TIOC (TCT Intelligent ObjectController, intelligent object controller), and the train envelope only comprises a train of communication trains;
the UCT envelope is a train envelope of normal communication and current communication faults, can contain a plurality of trains of communication faults and is a main body of screening-free monitoring.
Further, in step S1, the UCT envelope is generated based on the CT envelope and the occupancy/idle state information of the axle counting section, which is specifically as follows:
if the axle counting section where the starting point of the CT envelope is located is an occupied state, setting the starting point of the UCT envelope as the starting point of the CT envelope, otherwise, inquiring the axle counting section of the first occupied state from the direction from the starting point of the CT envelope to the ending point, and setting the far end point of the axle counting section as the starting point position of the UCT envelope;
if the axle counting section where the end point of the CT envelope is located is in an occupied state, setting the starting point of the UCT envelope as the end point of the CT envelope, otherwise, inquiring the axle counting section in the first occupied state from the direction from the end point of the CT envelope to the starting point, and setting the far end point of the axle counting section as the end point position of the UCT envelope;
further, the train sequences in the generated UCT envelope are ordered according to the direction of the envelope starting point to the end point.
Further, if the turnout area within the CT envelope is occupied and four turnouts are formed, the UCT envelope cannot be created after the vehicle communication in the CT envelope is interrupted, and the UKT envelope is created according to the occupied information.
The UKT envelope is a hidden car or a train envelope that has never been communicated with the TIOC.
Further, the envelope range is extended forward/backward according to the occupied/idle state information of the axle counting section, which is specifically as follows:
if the adjacent axle counting sections in front of/behind the UCT envelope are in an occupied state and no other envelopes exist, extending the UCT envelope to the position of the far end point of the axle counting section in the corresponding front/back corresponding occupied state, and taking the occupancy of the axle counting section as the occupancy caused by the extension of the UCT envelope;
if the adjacent axle counting sections in front of/behind the UCT envelope are occupied by the UKT envelope, extending the UCT envelope to the far end point of the corresponding front/rear axle counting section, setting a suspicious mark at the corresponding front/rear end, and deleting the UKT envelope;
if the CT envelope exists in the adjacent front/rear axle counting sections of the UCT envelope, the UCT envelope is extended along with the movement of the position of the CT envelope, but does not invade the range of the CT envelope, and the UCT envelope is dyed by a hidden car at the position of the near end of the CT envelope relative to the UCT envelope.
Further, the front/rear of the CT envelope is close to the UCT, and if the currently set front/rear train ID is 0, the UCT ID is set; if the currently set front/rear train ID is the same as the close UCT ID, continuing to maintain; if the front/rear train ID that is currently set and is not identical to the approaching UCT ID, the hidden car ID is set.
Further, in step S2, after extending the UCT envelope range forwards/backwards, deleting and converting the UCT envelope is further included.
When the UCT envelope contains a turnout, periodically monitoring the state of the turnout, if the turnout position is four-fold and is in an occupied state, deleting the UCT envelope, and converting into a UKT envelope according to the occupied/idle state of a metering shaft section contained in the envelope;
when the distance between the starting point position and the ending point position of the UCT envelope is smaller than the minimum vehicle length of the line and CT envelopes exist before and after the UCT envelope and the same axle counting section, deleting the UCT envelope;
when suspicious marks exist at the front end and the rear end of the UCT envelope, deleting the UCT envelope and converting the UCT envelope into the UKT envelope.
Further, in step S3, the merging conditions for merging the UCT envelopes are as follows:
when the two UCT envelopes are combined, hidden vehicles cannot exist in the new UCT envelopes, and after train sequences contained in the two UCT envelopes are combined, continuous repeated sequences are removed, continuous train sequences without repetition can be formed; two UCT envelopes combined at the same time need to belong to the same TIOC.
Further, the conditions for splitting by using the splitting mode are specifically as follows:
after a train in the UCT envelope resumes communication, if the position reported by the train in the UCT envelope (after the maximum safety and before the minimum safety) intersects with the original UCT envelope, generating a CT envelope by the train part in the UCT envelope, otherwise deleting the UCT envelope, and converting the UCT envelope into a UKT envelope according to the occupation/idle state of a counting shaft section contained in the UCT envelope;
splitting the original UCT envelope according to the generated CT envelope, deleting the train recovering the communication from the sequence in the split UCT envelope, and not invading the range of the CT envelope (after minimum safety and before maximum safety).
Furthermore, the conditions for splitting by using the cloning mode are specifically as follows:
if the UCT envelope starting point or the UCT envelope end point coincides with the demarcation point, the axle counting section outside the demarcation point is in an occupied state;
if the switch position in the UCT envelope is correct and the switch region is idle, but the axle counting sequence in the envelope does not meet the switch topological relation, converting into the UKT envelope according to the occupied/idle state of the axle counting section contained in the UCT envelope.
The beneficial effects of the invention are as follows:
based on the envelope management method, screening can be completed quickly after the communication is restored by degrading the train, so that the operation efficiency is improved, and the problems that the operation efficiency is influenced due to slow restoration and upgrading of the train are solved.
Drawings
FIG. 1 is a schematic flow chart of the method.
Fig. 2 is a schematic diagram of an example scenario of the generation of the UCT envelope.
Fig. 3 is an exemplary schematic diagram of an axle counting section scene where the UCT envelope of the UCT envelope extension approaches no envelope occupancy.
Fig. 4 is an example schematic diagram of a UCT envelope approach UKT envelope scene of the UCT envelope extension.
Fig. 5 is an exemplary schematic diagram of a UCT envelope approach CT envelope scene of UCT envelope extension.
Fig. 6 is a schematic diagram of an example scenario of UCT envelope merging.
Fig. 7 is a schematic diagram of an example scenario of the UCT envelope splitting approach split.
Fig. 8 is a schematic diagram of an example scenario of the UCT envelope clone splitting.
Fig. 9 is an exemplary diagram of a split scenario at a non-demarcation point of the UCT envelope split.
Fig. 10 is a diagram illustrating an example of a UCT envelope screening-free scenario.
Detailed Description
In the following description, the technical solutions of the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the present invention as understood by those skilled in the art, merely for convenience of describing the present invention and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as indicating or implying a relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The embodiment 1 of the invention discloses a screening-free method based on vehicle-to-vehicle communication, which is shown in fig. 1, and comprises the following specific steps:
s1: generating a UCT envelope;
specifically, after front-end screening is completed and communication of a communication train (non-dormant train) with the length not smaller than twice the minimum length is interrupted, UCT envelope is generated based on CT envelope and occupation/idle state information of a metering section;
the end point of the train distance axle counting section is smaller than the minimum train length of the line, and the adjacent axle counting section is idle, so that screening can be completed for the train.
Wherein the CT envelope is a train envelope which is normal in communication and can be continuously monitored by a TIOC (TCT Intelligent ObjectController, intelligent object controller), and the train envelope only comprises a train of communication trains;
the UCT envelope is a train envelope of normal communication and current communication faults, can contain a plurality of trains of communication faults and is a main body of screening-free monitoring.
In this embodiment, in step S1, the UCT envelope is generated based on the CT envelope and the occupied/idle state information of the axle counting section, which is specifically as follows:
if the axle counting section where the starting point of the CT envelope is located is an occupied state, setting the starting point of the UCT envelope as the starting point of the CT envelope, otherwise, inquiring the axle counting section of the first occupied state from the direction from the starting point of the CT envelope to the ending point, and setting the far end point of the axle counting section as the starting point position of the UCT envelope, as shown in figure 2;
if the axle counting section where the end point of the CT envelope is located is in an occupied state, setting the starting point of the UCT envelope as the end point of the CT envelope, otherwise, inquiring the axle counting section in the first occupied state from the direction from the end point of the CT envelope to the starting point, and setting the far end point of the axle counting section as the end point of the UCT envelope.
In this embodiment, the train sequences within the generated UCT envelope are ordered according to the direction in which the envelope start point points to the end point.
In the embodiment, if a turnout area within a CT envelope is occupied and four turnouts are formed, a UCT envelope cannot be created after vehicle communication in the CT envelope is interrupted, and a UKT envelope is created according to the occupied information;
the UKT envelope is a hidden car or a train envelope that has never been communicated with the TIOC.
S2: after UCT envelope is generated, extending the UCT envelope range forwards/backwards according to the occupied/idle state information of the axle counting section;
in this embodiment, the envelope range is extended forward/backward according to the occupied/idle state information of the axle counting section, which is specifically as follows:
if the adjacent axle counting section in front of/behind the UCT envelope is in an occupied state and no other envelope exists, extending the UCT envelope to the position of the far end point of the axle counting section in the corresponding front/back corresponding occupied state, and taking the occupancy of the axle counting section as the occupancy caused by the extension of the UCT envelope, as shown in figure 3;
if the adjacent axle counting sections in front of/behind the UCT envelope are occupied by the UKT envelope, extending the UCT envelope to the far end point of the corresponding front/rear axle counting section, setting a suspicious mark at the corresponding front/rear end, and deleting the UKT envelope at the same time, as shown in figure 4;
if a CT envelope exists in the adjacent front/rear axle counting sections of the UCT envelope, the UCT envelope is extended along with the movement of the CT envelope position, but does not invade the range of the CT envelope, and a hidden car (i.e. a suspicious mark exists) at the proximal position of the CT envelope relative to the UCT envelope is dyed to the UCT envelope, as shown in fig. 5.
If the front/rear of the CT envelope is close to the UCT, if the currently set front/rear train ID is 0, setting the current set front/rear train ID as the UCT ID; if the currently set front/rear train ID is the same as the close UCT ID, continuing to maintain; if the front/rear train ID that is currently set and is not identical to the approaching UCT ID, the hidden car ID is set.
In this embodiment, the UCT envelope may not extend to adjacent TIOC regions when extended.
S3: merging or splitting UCT envelopes;
when the UCT envelope encounters another UCT envelope during extension, judging whether a set merging condition is met, and if so, merging the current two UCT envelopes;
referring to fig. 6, in this embodiment, the merging conditions for merging the UCT envelopes are as follows:
when the two UCT envelopes are combined, hidden vehicles cannot exist in the new UCT envelopes, and after train sequences contained in the two UCT envelopes are combined, continuous repeated sequences are removed, continuous train sequences without repetition can be formed; two UCT envelopes combined at the same time need to belong to the same TIOC.
If any one of the above conditions is not satisfied, deleting the UCT envelope and setting the axle counting section in the range of the UCT envelope to be the UKT envelope; if the above conditions are satisfied, two UCT envelopes may be combined into one envelope, and the processing principle is as follows:
the new UCT envelope range is the combination of the original two UCT envelope ranges;
the train sequence in the new UCT envelope is the combination of the train sequences in the original two UCT envelopes;
the front/rear suspicious flag of the new UCT envelope inherits the front/rear suspicious flags of the original two UCT envelopes.
When the UCT envelope extends, if a vehicle resumes communication in the UCT envelope, splitting the UCT envelope in a set mode according to condition selection;
the set modes comprise a splitting mode and a cloning mode;
in this embodiment, the conditions for splitting by using the splitting manner are specifically as follows:
after a train in the UCT envelope resumes communication, if the position reported by the train in the UCT envelope (after the maximum safety and before the minimum safety) intersects with the original UCT envelope, generating a CT envelope by the train part in the UCT envelope, splitting the original UCT envelope according to the generated CT envelope, otherwise deleting the UCT envelope, and converting the UCT envelope into a UKT envelope according to the occupied/idle state of a counting shaft section contained in the UCT envelope;
in this embodiment, the train recovering the communication is deleted from the sequence within the split UCT envelope, and does not invade the CT envelope (minimum security, maximum security).
The splitting mode is used for splitting, and specifically comprises the following conditions:
if the train for recovering communication is the only one train of the original UCT envelope, when the CT envelope is split, specifically, the front train and the rear train of the CT envelope inherit the front train and the rear train of the original UCT envelope, and the original UCT envelope is split into a CT envelope;
if the train for restoring communication is the head train of the original UCT envelope, splitting a UCT envelope behind the CT envelope when splitting, dividing the original UCT envelope into a CT envelope and a UCT envelope by the CT envelope, and inheriting the front train of the original UCT envelope by the generated front train of the CT envelope, wherein the rear train is the train of the nearest host train of the train sequence in the new UCT envelope.
If the train for recovering communication is a tail train of the original UCT envelope, splitting a UCT envelope in front of the CT envelope when splitting, dividing the original UCT envelope into a CT envelope and a UCT envelope by the CT envelope, and inheriting the rear train of the original UCT envelope by the generated rear train of the CT envelope, wherein the front train is the train of the nearest train in the new UCT envelope.
If the train for restoring communication is the middle train of the original UCT envelope, when the train is split, one UCT envelope is respectively split in front of and behind the CT envelope, the front train of the generated CT envelope is the train of the train sequence nearest to the train in the new UCT envelope, and the rear train of the generated CT envelope is the train of the train sequence nearest to the train in the new UCT envelope, as shown in figure 7.
In this embodiment, the split UCT envelope adjustment is retracted to occupy the maximum boundary range enclosed by the axle counting section.
In this embodiment, when the distance between the start position and the end position of the UCT envelope is smaller than the minimum vehicle length of the line, and CT envelopes exist before and after the same axle counting section of the UCT envelope, the UCT envelope is deleted.
In this embodiment, the conditions for splitting by using the cloning method are specifically as follows:
if the UCT envelope starting point or the UCT envelope end point coincides with the demarcation point, the axle counting section outside the demarcation point is in an occupied state;
if the switch position in the UCT envelope is correct and the switch region is idle, but the axle counting sequence in the envelope does not meet the switch topological relation, converting into the UKT envelope according to the occupied/idle state of the axle counting section contained in the UCT envelope.
The cloning mode is split, and the specific process is as follows:
firstly, creating a new UCT envelope, wherein the new UCT envelope is inconsistent with the original UCT envelope only in the envelope range, and other envelope information is consistent;
if the outside-demarcation point axle counting section is in an occupied state without envelope, which is considered to be occupied by the extension of the UCT envelope, the new UCT envelope is split according to the envelope range [ demarcation point, outside-demarcation point axle counting section far end point ], as shown in figure 8.
If the outside-demarcation point axle counting section is the occupancy state of the UKT envelope, the new UCT envelope is split according to the envelope range [ the demarcation point, the outside-demarcation point axle counting section far-end endpoint ], wherein if the original UCT envelope extends forwards, a suspicious mark is added at the front end of the split new UCT envelope, and if the original UCT envelope extends backwards, a suspicious mark is added at the rear end of the split new UCT envelope, and meanwhile, the UKT envelope is deleted.
If the CT envelope exists in the off-cut off point axle counting section, the UCT envelope does not invade the range of the CT envelope (after minimum safety and before maximum safety), and hidden vehicles at the near end position of the CT envelope relative to the UCT envelope can dye the UCT envelope.
In this embodiment, for splitting at the non-demarcation point, the split UCT envelopes retract to the maximum boundary range enclosed by the occupied axle counting section and do not invade the non-local OC range, as shown in fig. 9, where the UCT1 and the UCT2 are the split two UCT envelopes.
S4: and carrying out screening-free treatment on the split CT envelope meeting the screening-free condition.
The screen-free conditions are as follows:
when the front/rear train ID of the split CT envelope is 0 or the front/rear train ID of the split CT envelope is not 255 (hidden train ID), and the front/rear train of the split CT envelope inherits a train recovering communication from the original UCT envelope.
Based on the method, the CT envelope can be processed without screening when the conditions are met, and the calculation of mobile authorization is performed, so that the operation is rapidly upgraded.
Example 2
The embodiment 2 of the invention discloses a screening-free method based on vehicle-to-vehicle communication, which is shown in fig. 1, and comprises the following specific steps:
s1: generating a UCT envelope;
specifically, after front-end screening is completed and communication of a communication train (non-dormant train) with the length not smaller than twice the minimum length is interrupted, UCT envelope is generated based on CT envelope and occupation/idle state information of a metering section;
the end point of the train distance axle counting section is smaller than the minimum train length of the line, and the adjacent axle counting section is idle, so that screening can be completed for the train.
Wherein the CT envelope is a train envelope which is normal in communication and can be continuously monitored by a TIOC (TCT Intelligent ObjectController, intelligent object controller), and the train envelope only comprises a train of communication trains;
the UCT envelope is a train envelope of normal communication and current communication faults, can contain a plurality of trains of communication faults and is a main body of screening-free monitoring.
In this embodiment, in step S1, the UCT envelope is generated based on the CT envelope and the occupied/idle state information of the axle counting section, which is specifically as follows:
if the axle counting section where the starting point of the CT envelope is located is an occupied state, setting the starting point of the UCT envelope as the starting point of the CT envelope, otherwise, inquiring the axle counting section of the first occupied state from the direction from the starting point of the CT envelope to the ending point, and setting the far end point of the axle counting section as the starting point position of the UCT envelope, as shown in figure 2;
if the axle counting section where the end point of the CT envelope is located is in an occupied state, setting the starting point of the UCT envelope as the end point of the CT envelope, otherwise, inquiring the axle counting section in the first occupied state from the direction from the end point of the CT envelope to the starting point, and setting the far end point of the axle counting section as the end point of the UCT envelope.
In this embodiment, the train sequences within the generated UCT envelope are ordered according to the direction in which the envelope start point points to the end point.
In the embodiment, if a turnout area within a CT envelope is occupied and four turnouts are formed, a UCT envelope cannot be created after vehicle communication in the CT envelope is interrupted, and a UKT envelope is created according to the occupied information;
the UKT envelope is a hidden car or a train envelope that has never been communicated with the TIOC.
S2: after UCT envelope is generated, extending the UCT envelope range forwards/backwards according to the occupied/idle state information of the axle counting section;
in this embodiment, the envelope range is extended forward/backward according to the occupied/idle state information of the axle counting section, which is specifically as follows:
if the adjacent axle counting section in front of/behind the UCT envelope is in an occupied state and no other envelope exists, extending the UCT envelope to the position of the far end point of the axle counting section in the corresponding front/back corresponding occupied state, and taking the occupancy of the axle counting section as the occupancy caused by the extension of the UCT envelope, as shown in figure 3;
if the adjacent axle counting sections in front of/behind the UCT envelope are occupied by the UKT envelope, extending the UCT envelope to the far end point of the corresponding front/rear axle counting section, setting a suspicious mark at the corresponding front/rear end, and deleting the UKT envelope at the same time, as shown in figure 4;
if a CT envelope exists in the adjacent front/rear axle counting section of the UCT envelope, the UCT envelope is extended along with the movement of the CT envelope position, but does not invade the range of the CT envelope, and a hidden car (i.e. a suspicious mark exists) at the near end position of the CT envelope relative to the UCT envelope is dyed to the UCT envelope, as shown in fig. 5, wherein CT1 represents the CT envelope of the adjacent front/rear axle counting section of the UCT envelope, and UCT1 and UCT2 represent two UCT envelopes respectively.
If the front/rear of the CT envelope is close to the UCT, if the currently set front/rear train ID is 0, setting the current set front/rear train ID as the UCT ID; if the currently set front/rear train ID is the same as the close UCT ID, continuing to maintain; if the front/rear train ID that is currently set and is not identical to the approaching UCT ID, the hidden car ID is set.
In this embodiment, the UCT envelope may not extend to adjacent TIOC regions when extended.
S3: merging or splitting UCT envelopes;
when the UCT envelope encounters another UCT envelope during extension, judging whether a set merging condition is met, and if so, merging the current two UCT envelopes;
as shown in fig. 6, the UCT1 and the UCT2 in the figure represent two UCT envelopes to be combined, and in this embodiment, combining conditions for combining the UCT envelopes are as follows:
when the two UCT envelopes are combined, hidden vehicles cannot exist in the new UCT envelopes, and after train sequences contained in the two UCT envelopes are combined, continuous repeated sequences are removed, continuous train sequences without repetition can be formed; two UCT envelopes combined at the same time need to belong to the same TIOC.
If any one of the above conditions is not satisfied, deleting the UCT envelope and setting the axle counting section in the range of the UCT envelope to be the UKT envelope; if the above conditions are satisfied, two UCT envelopes may be combined into one envelope, and the processing principle is as follows:
the new UCT envelope range is the combination of the original two UCT envelope ranges;
the train sequence in the new UCT envelope is the combination of the train sequences in the original two UCT envelopes;
the front/rear suspicious flag of the new UCT envelope inherits the front/rear suspicious flags of the original two UCT envelopes.
When the UCT envelope extends, if a vehicle resumes communication in the UCT envelope, splitting the UCT envelope in a set mode according to condition selection;
the set modes comprise a splitting mode and a cloning mode;
in this embodiment, the conditions for splitting by using the splitting manner are specifically as follows:
after a train in the UCT envelope resumes communication, if the position reported by the train in the UCT envelope (after the maximum safety and before the minimum safety) intersects with the original UCT envelope, generating a CT envelope by the train part in the UCT envelope, splitting the original UCT envelope according to the generated CT envelope, otherwise deleting the UCT envelope, and converting the UCT envelope into a UKT envelope according to the occupied/idle state of a counting shaft section contained in the UCT envelope;
in this embodiment, the train recovering the communication is deleted from the sequence within the split UCT envelope, and does not invade the CT envelope (minimum security, maximum security).
The splitting mode is used for splitting, and specifically comprises the following conditions:
if the train for recovering communication is the only one train of the original UCT envelope, when the CT envelope is split, specifically, the front train and the rear train of the CT envelope inherit the front train and the rear train of the original UCT envelope, and the original UCT envelope is split into a CT envelope;
if the train for restoring communication is the head train of the original UCT envelope, splitting a UCT envelope behind the CT envelope when splitting, dividing the original UCT envelope into a CT envelope and a UCT envelope by the CT envelope, and inheriting the front train of the original UCT envelope by the generated front train of the CT envelope, wherein the rear train is the train of the nearest host train of the train sequence in the new UCT envelope.
If the train for recovering communication is a tail train of the original UCT envelope, splitting a UCT envelope in front of the CT envelope when splitting, dividing the original UCT envelope into a CT envelope and a UCT envelope by the CT envelope, and inheriting the rear train of the original UCT envelope by the generated rear train of the CT envelope, wherein the front train is the train of the nearest train in the new UCT envelope.
If the train for restoring communication is an intermediate train of the original UCT envelope, when the UCT envelope is split, one UCT envelope is respectively split in front of and behind the CT envelope, the front train of the generated UCT envelope is the train of the nearest host train of the train sequence in the new UCT envelope, the rear train of the generated UCT envelope is the train of the nearest host train of the train sequence in the new UCT envelope, as shown in fig. 7, wherein CT1 represents the split generated UCT envelope when the UCT envelope intermediate train restores communication, and UCT1 and UCT2 are the split generated two UCT envelopes.
In this embodiment, the split UCT envelope adjustment is retracted to occupy the maximum boundary range enclosed by the axle counting section.
In this embodiment, when the distance between the start position and the end position of the UCT envelope is smaller than the minimum vehicle length of the line, and CT envelopes exist before and after the same axle counting section of the UCT envelope, the UCT envelope is deleted.
In this embodiment, the conditions for splitting by using the cloning method are specifically as follows:
if the UCT envelope starting point or the UCT envelope end point coincides with the demarcation point, the axle counting section outside the demarcation point is in an occupied state;
if the switch position in the UCT envelope is correct and the switch region is idle, but the axle counting sequence in the envelope does not meet the switch topological relation, converting into the UKT envelope according to the occupied/idle state of the axle counting section contained in the UCT envelope.
The cloning mode is split, and the specific process is as follows:
firstly, creating a new UCT envelope, wherein the new UCT envelope is inconsistent with the original UCT envelope only in the envelope range, and other envelope information is consistent;
if the outside-demarcation point axle counting section is in an occupied state without envelope, which is considered to be occupied by the extension of the UCT envelope, the new UCT envelope is split according to the envelope range [ demarcation point, outside-demarcation point axle counting section far end point ], as shown in figure 8, wherein UCT1 and UCT2 are the split two UCT envelopes.
If the outside-demarcation point axle counting section is the occupancy state of the UKT envelope, the new UCT envelope is split according to the envelope range [ the demarcation point, the outside-demarcation point axle counting section far-end endpoint ], wherein if the original UCT envelope extends forwards, a suspicious mark is added at the front end of the split new UCT envelope, and if the original UCT envelope extends backwards, a suspicious mark is added at the rear end of the split new UCT envelope, and meanwhile, the UKT envelope is deleted.
If the CT envelope exists in the off-cut off point axle counting section, the UCT envelope does not invade the range of the CT envelope (after minimum safety and before maximum safety), and hidden vehicles at the near end position of the CT envelope relative to the UCT envelope can dye the UCT envelope.
In this embodiment, for splitting at non-demarcation points, the split UCT envelope is retracted to a maximum boundary range bounded by the occupied metering axis segments and does not encroach on the non-native OC range.
In this embodiment, after extending the UCT envelope range forward/backward, deleting and converting the UCT envelope is further included.
When the UCT envelope contains a turnout, periodically monitoring the state of the turnout, if the turnout position is four-fold and is in an occupied state, deleting the UCT envelope, and converting into a UKT envelope according to the occupied/idle state of a metering shaft section contained in the envelope;
when the distance between the starting point position and the ending point position of the UCT envelope is smaller than the minimum vehicle length of the line and CT envelopes exist before and after the UCT envelope and the same axle counting section, deleting the UCT envelope;
when suspicious marks exist at the front end and the rear end of the UCT envelope, deleting the UCT envelope and converting the UCT envelope into the UKT envelope.
S4: and carrying out screening-free treatment on the split CT envelope meeting the screening-free condition, as shown in fig. 10.
The screen-free conditions are as follows:
when the front/rear train ID of the split CT envelope is 0 or the front/rear train ID of the split CT envelope is not 255 (hidden train ID), and the front/rear train of the split CT envelope inherits a train recovering communication from the original UCT envelope.
Based on the method, the CT envelope can be processed without screening when the conditions are met, and the calculation of mobile authorization is performed, so that the operation is rapidly upgraded.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (10)
1. A screening-free method based on vehicle-to-vehicle communication, comprising:
s1: generating a UCT envelope;
specifically, after communication of a communication train with front end screening and a train length not smaller than twice the minimum train length is interrupted, a UCT envelope is generated based on the CT envelope and occupation/idle state information of a metering section;
s2: after UCT envelope is generated, extending the UCT envelope range forwards/backwards according to the occupied/idle state information of the axle counting section;
s3: merging or splitting UCT envelopes;
when the UCT envelope encounters another UCT envelope during extension, judging whether a set merging condition is met, and if so, merging the current two UCT envelopes; when the UCT envelope extends, if a vehicle resumes communication in the UCT envelope, a set mode is selected to split the UCT envelope;
the set modes comprise a splitting mode and a cloning mode;
s4: carrying out screening-free treatment on the split CT envelope meeting the screening-free condition;
the screen-free conditions are as follows:
when the front/rear train ID of the split CT envelope is 0 or the front/rear train ID of the split CT envelope is not 255, the front/rear train of the split CT envelope inherits a train recovering communication from the original UCT envelope.
2. The screening-free method based on vehicle-to-vehicle communication according to claim 1, wherein in step S1, the UCT envelope is generated based on the CT envelope and occupancy/idle state information of the axle counting section, specifically as follows:
if the axle counting section where the starting point of the CT envelope is located is an occupied state, setting the starting point of the UCT envelope as the starting point of the CT envelope, otherwise, inquiring the axle counting section of the first occupied state from the direction from the starting point of the CT envelope to the ending point, and setting the far end point of the axle counting section as the starting point position of the UCT envelope;
if the axle counting section where the end point of the CT envelope is located is in an occupied state, setting the starting point of the UCT envelope as the end point of the CT envelope, otherwise, inquiring the axle counting section in the first occupied state from the direction from the end point of the CT envelope to the starting point, and setting the far end point of the axle counting section as the end point of the UCT envelope.
3. The screening-free method based on vehicle-to-vehicle communication of claim 2, wherein the train sequences within the generated UCT envelope are ordered in a direction from the envelope start point to the end point.
4. The screening-free method based on vehicle-to-vehicle communication according to claim 2, wherein if a turnout area within a CT envelope is occupied and four turnouts are available, a UCT envelope cannot be created after the vehicle communication in the CT envelope is interrupted, and a UKT envelope is created according to the occupancy information.
5. The screening-free method based on vehicle-to-vehicle communication according to claim 1, wherein in step S2, the envelope range is extended forward/backward according to the occupied/idle state information of the axle counting section, specifically as follows:
if the adjacent axle counting sections in front of/behind the UCT envelope are in an occupied state and no other envelopes exist, extending the UCT envelope to the position of the far end point of the axle counting section in the corresponding front/back corresponding occupied state, and taking the occupancy of the axle counting section as the occupancy caused by the extension of the UCT envelope;
if the adjacent axle counting sections in front of/behind the UCT envelope are occupied by the UKT envelope, extending the UCT envelope to the far end point of the corresponding front/rear axle counting section, setting a suspicious mark at the corresponding front/rear end, and deleting the UKT envelope;
if the CT envelope exists in the adjacent front/rear axle counting sections of the UCT envelope, the UCT envelope is extended along with the movement of the position of the CT envelope, but does not invade the range of the CT envelope, and the UCT envelope is dyed by a hidden car at the position of the near end of the CT envelope relative to the UCT envelope.
6. The screening-free method based on car communication according to claim 5, wherein the CT envelope front/rear is the UCT, and if the currently set front/rear train ID is 0, the set UCT ID is set; if the currently set front/rear train ID is the same as the UCT ID, continuing to maintain; if the front/rear train ID that is currently set and is not identical to the UCT ID, the hidden car ID is set.
7. The screening-free method based on vehicle-to-vehicle communication according to claim 5, wherein in step S2, after extending the UCT envelope range forward/backward, deleting and converting the UCT envelope is further included;
when the UCT envelope contains a turnout, periodically monitoring the state of the turnout, if the turnout position is four-fold and is in an occupied state, deleting the UCT envelope, and converting into a UKT envelope according to the occupied/idle state of a metering shaft section contained in the envelope;
when the distance between the starting point position and the ending point position of the UCT envelope is smaller than the minimum vehicle length of the line and CT envelopes exist before and after the UCT envelope and the same axle counting section, deleting the UCT envelope;
when suspicious marks exist at the front end and the rear end of the UCT envelope, deleting the UCT envelope and converting the UCT envelope into the UKT envelope.
8. The screening-free method based on vehicle-to-vehicle communication according to claim 1, wherein in step S3, combining conditions for combining the UCT envelopes are as follows:
when the two UCT envelopes are combined, hidden vehicles cannot exist in the new UCT envelopes, and after train sequences contained in the two UCT envelopes are combined, continuous repeated sequences are removed, continuous train sequences without repetition can be formed; two UCT envelopes combined at the same time need to belong to the same TIOC.
9. The screening-free method based on vehicle-to-vehicle communication according to claim 1, wherein the conditions for splitting by the splitting method are specifically as follows:
after a train in the UCT envelope resumes communication, if the position of the train reported by the resuming communication after the maximum safety and before the minimum safety is intersected with the original UCT envelope, the train part of the resuming communication generates a CT envelope, otherwise, the UCT envelope is deleted, and the UCT envelope is converted into a UKT envelope according to the occupied/idle state of an axle counting section contained in the UCT envelope;
splitting the original UCT envelope according to the generated CT envelope, deleting the train recovering the communication from the sequence in the split UCT envelope, and not invading the CT envelope in the range of minimum safety and maximum safety.
10. The screening-free method based on vehicle-to-vehicle communication according to claim 1, wherein the condition for splitting by using the cloning mode is specifically as follows:
if the starting point or the end point of the UCT envelope coincides with the demarcation point, the axle counting section outside the demarcation point is in an occupied state;
if the switch position in the UCT envelope is correct and the switch region is idle, but the axle counting sequence in the envelope does not meet the switch topological relation, converting into the UKT envelope according to the occupied/idle state of the axle counting section contained in the UCT envelope.
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| WO2023109499A1 (en) * | 2021-12-13 | 2023-06-22 | 卡斯柯信号有限公司 | Train control system and method based on resource management |
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| US20200406943A1 (en) * | 2018-06-06 | 2020-12-31 | Casco Signal Co., Ltd. | Train movement authorization method based on vehicle-to-vehicle cooperation |
| CN112298292A (en) * | 2020-10-28 | 2021-02-02 | 交控科技股份有限公司 | Processing method and device for rapidly upgrading train |
| CN113954927A (en) * | 2021-10-15 | 2022-01-21 | 浙江众合科技股份有限公司 | Degradation management method for train-vehicle communication train control system |
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