CN114684224A - Method for judging UT occupation of sector - Google Patents
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- CN114684224A CN114684224A CN202011611934.0A CN202011611934A CN114684224A CN 114684224 A CN114684224 A CN 114684224A CN 202011611934 A CN202011611934 A CN 202011611934A CN 114684224 A CN114684224 A CN 114684224A
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- 238000004891 communication Methods 0.000 claims abstract description 92
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Abstract
The invention provides a method for judging the occupation of a section UT, which comprises the steps of acquiring the occupation information of a section to be judged; if the occupation information of the section to be judged is not occupied by AT, acquiring the range of the section to be judged; judging logic section occupation information in the section to be detected according to the range of the section to be detected; and judging whether the section to be judged is occupied by UT according to the section to be judged occupation information and the logic section occupation information. According to the method for judging the occupation of the section UT, when the occupation of the section UT is judged, the communication delay and the axle counting acquisition delay are taken into consideration, so that the occupation of the section UT is judged more reasonably and safely, and potential safety hazards caused by loss of non-communication trains are prevented.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a method for judging the occupation of a section UT.
Background
The existing section UT judging method only judges whether the adjacent logic section of the section to be judged is occupied by UT or not, and judges whether the UT occupation is wrong or not because of communication delay is not considered, so that a non-communication train can be lost, and the risk that a CBTC-level train controlled by a ZC collides the non-communication train exists.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for judging the occupation of a section UT. According to the method for judging the occupation of the section UT, when the occupation of the section UT is judged, communication delay and axle counting acquisition delay are taken into consideration, so that the occupation of the section UT is judged more reasonably and safely, and potential safety hazards caused by loss of non-communication trains are prevented.
To achieve the above object, an embodiment according to a first aspect of the present invention provides a method for determining occupancy of a segment UT, where the method for determining occupancy of the segment UT includes: acquiring occupation information of a section to be judged; if the to-be-judged section occupation information is not occupied by the AT, acquiring a range of the to-be-detected section; judging logic section occupation information in the section to be detected according to the range of the section to be detected; and judging whether the section to be judged is occupied by UT according to the section occupation information to be judged and the logic section occupation information.
According to the method for judging the occupation of the section UT, the range of the section to be judged is obtained, and whether the section to be judged is occupied by the UT is judged according to the occupation information of the logic section in the range of the section to be judged, so that the judgment of the occupation of the UT is more reasonable and safer, and the potential safety hazard caused by the loss of a non-communication train is prevented.
In some examples of the present invention, the acquiring a range of a segment to be measured includes: acquiring the highest running speed of the non-communication train; acquiring communication delay time; determining a delay operation length according to the maximum operation speed of the non-communication train and the communication delay time; and determining the range of the section to be tested according to the delay operation length.
In some examples of the invention, the obtaining the communication delay time includes: if all physical sections in the section to be detected are controlled by the local station area controller, the communication delay time is the sum of the axle counting acquisition delay time and the communication delay time of the interlocking of the area controller and the computer; if part of physical sections in the section to be measured are controlled by the local station area controller, and the other part of physical sections are controlled by the adjacent station area controller, the communication delay time is the sum of the axis-counting acquisition delay time, the communication delay time of the adjacent station computer interlocking and the adjacent station area controller, and the communication delay time of the adjacent station area controller and the local station area controller.
In some examples of the invention, the logical segment occupancy information includes logical segment present UT occupancy, logical segment present AT occupancy, and logical segment no occupancy.
In some examples of the invention, further comprising: and if the section to be judged is not occupied or the AT is occupied, the section to be judged is not occupied by the UT.
In some examples of the present invention, the determining, according to the to-be-determined section occupancy information and the logic section occupancy information, an occupancy state of the to-be-determined section UT includes: and if the occupation information of the section to be judged is not occupied by AT and the logic section is occupied by UT, occupying the section to be judged by UT.
In some examples of the present invention, the determining, according to the to-be-determined section occupancy information and the logic section occupancy information, an occupancy state of the to-be-determined section UT includes: if the to-be-judged zone occupation information is not occupied by AT and the logic zone is occupied by AT, acquiring the AT running direction; performing head screening and tail screening on the AT, and acquiring a head screening result and a tail screening result; and judging the occupation state of the section to be judged UT according to the AT running direction, the head sieve result and the tail sieve result.
In some examples of the present invention, the determining, according to the AT running direction, the head screen result, and the tail screen result, an occupation state of the to-be-determined section UT includes: if the AT running direction is close to the section to be judged and the head screen fails, judging that the section to be judged UT occupies; and if the AT running direction is far away from the section to be judged and the tail screen fails, judging that the section to be judged UT occupies.
An embodiment according to a second aspect of the present invention proposes a zone controller, comprising a memory, a processor, a receiver, a transmitter, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the method according to any one of the embodiments of the first aspect.
An embodiment according to the third aspect of the present invention proposes a computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the steps of the method according to any one of the embodiments of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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Fig. 1 is a flowchart of a method for determining occupancy of a UT in a sector according to an embodiment of the present invention;
FIG. 2 is another block UT occupancy scheme in accordance with an embodiment of the present inventionA flow chart of the determination method;
fig. 3 is a flowchart of another method for determining the occupancy of a sector UT according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a zone controller according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The method for determining the occupation of the sector UT according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 4.
To facilitate an understanding of the present invention, before explaining specific embodiments of the present invention in detail, the terms of art of the present invention are first explained as follows:
UT refers to non-communication Train, and is called Unrequired Train in English.
AT refers to a communication Train, and is called Automatic Train in English.
In some embodiments, as shown in fig. 1, the method for determining the occupancy of the segment UT includes the following steps:
s101, acquiring occupation information of a section to be judged.
In some embodiments, in order to determine whether a segment is occupied by a UT, first, occupancy information of the segment to be determined needs to be acquired. The occupation information of the to-be-judged section can only judge whether the to-be-judged section is occupied by the AT. If the section to be determined is known to be occupied by AT, the section to be determined is obviously not occupied by UT. If the section to be judged is not occupied by the AT, the occupation of the UT or occupation information and other situations caused by axle counting faults can occur, and whether the occupation of the section to be judged is occupied by the UT or not needs to be distinguished from the situations.
S102, if the occupation information of the section to be judged is not occupied by the AT, the range of the section to be judged is obtained.
In some embodiments, the to-be-determined section occupation information is not occupied by the AT, and the delay run length is acquired. When the occupation information of the section to be judged is not occupied by the AT, in order to further judge whether the section to be judged is occupied by the UT, a section of section to be detected needs to be set, and the delay operation length is obtained.
In some embodiments, it is determined whether the segment to be detected is occupied by UT, and in addition to determining the occupied state of the segment to be determined, it is only necessary to determine whether the uplink adjacent logic segment or the downlink adjacent logic segment is occupied by UT. In this case, the problem caused by the time delay of the axle counting state acquisition and the communication time delay between the Computer Interlocking (CI) and the Zone Controller (ZC) is not considered, and due to these time delays, non-communication may have already entered the to-be-judged Zone from the adjacent physical Zone of the adjacent physical Zone, and at this time, the ZC cannot judge that the to-be-judged Zone UT occupies, so that a non-communication train is lost, and there is a risk that the train controlled by the ZC in the CBTC level hits the non-communication train. Therefore, in order to avoid these problems, it is necessary to calculate these delays to obtain a delay operation length L of a non-communicating train operating in the delay period. The uplink L length range of the section to be judged and the downlink L length range of the section to be judged are the range of the section to be detected.
In some embodiments, as shown in fig. 2, step S102, if the to-be-determined section occupation information is not occupied by an AT, acquiring a range of the to-be-measured section, further includes:
s201, acquiring the highest running speed of the non-communication train.
In some embodiments, in order to obtain the delay operation length, the maximum operation speed of the Automatic Train Protection (ATP) of the Train cutting Train, that is, the maximum operation speed of the non-communication Train, needs to be obtained first.
S202, a communication delay time is acquired.
In some embodiments, to obtain the delay run length, the communication delay time needs to be obtained. The communication delay time acquisition is different in different situations and in specific situations.
In some embodiments, if all physical sections in the section to be tested are controlled by the local station area controller, the communication delay time is the sum of the axis-counting acquisition delay time and the communication delay time of the interlocking of the area controller and the computer; if part of physical sections in the section to be measured are controlled by the local station area controller, and the other part of physical sections are controlled by the adjacent station area controller, the communication delay time is the sum of the axis-counting acquisition delay time, the communication delay time of the adjacent station computer interlocking and the adjacent station area controller, and the communication delay time of the adjacent station area controller and the local station area controller.
And S203, determining the delay operation length according to the highest operation speed of the non-communication train and the communication delay time.
In some embodiments, after the maximum operation speed and the communication delay time of the non-communication train are obtained, the delay operation length may be obtained through the maximum operation speed and the communication delay time of the non-communication train.
In some embodiments, since it cannot be determined whether a part of the physical zones in the zone to be measured is controlled by the adjacent station ZC, the default physical zones in the zone to be measured are all controlled by the local station ZC when the delay run length is calculated. At the moment, the obtained communication delay time is the sum of the counting axis acquisition delay time and the communication delay time of the ZC and the CI. By multiplying the maximum operation speed of the non-communicating train by the communication delay time, the delay operation length L1 of the non-communicating train operating in the delay period can be obtained.
The length range of the uplink L1 of the to-be-determined section is called a first to-be-determined section, and the length range of the downlink L1 of the to-be-determined section is called a second to-be-determined section. Since the delay run length L1 is obtained by calculating all the physical zones in the default zone to be measured by the ZC of the local station, after the calculation is completed, it is necessary to determine whether the physical zones in the first zone to be measured and the second zone to be measured are actually controlled by the ZC of the local station. If it is true that the own-station ZC control is performed, the calculated delay operation length L1 has no problem. If part of the physical sections in the first section to be measured or the second section to be measured is subjected to ZC control of the local station, and the other part is subjected to adjacent station ZC control, recalculation is needed.
If part of the physical sections in the first section to be measured are controlled by the local station ZC and the other part of the physical sections are controlled by the adjacent station ZC, the communication delay time is recalculated. The communication delay time at this moment is the sum of the axis-counting acquisition delay time, the communication delay time of the adjacent station computer interlocking and the adjacent station area controller and the communication delay time of the adjacent station area controller and the local station area controller. The delayed running length L2 of the non-communication train running in the delay period is obtained by multiplying the maximum running speed of the non-communication train and the communication delay time. At this time, the actual range of the first segment to be measured is the length range of the uplink L2 of the segment to be determined.
If part of the physical zones in the second zone to be measured is controlled by the ZC of the local station and the other part is controlled by the ZC of the adjacent station, the communication delay time also needs to be recalculated.
If the physical sections of the first section to be measured and the second section to be measured are both partially controlled by the ZC of the local station and partially controlled by the ZC of the adjacent station, the first section to be measured and the second section to be measured need to be recalculated, and the specific calculation process is as described above, the calculation principle is the same, and redundant description is omitted here.
And S204, determining the range of the section to be detected according to the delay operation length.
In some embodiments, after the delay run length is determined, the range of the segment to be measured can be determined according to the delay run length. After the delay operation length L is obtained, the uplink L length range of the to-be-determined section is referred to as a first to-be-detected section, the downlink L length range of the to-be-determined section is referred to as a second to-be-detected section, and the range of the first to-be-detected section and the range of the second to-be-detected section are referred to as the to-be-detected section range.
S103, judging the occupation information of the logic section in the section to be detected according to the range of the section to be detected.
In some embodiments, the logical segment occupancy information in the segment to be tested is determined according to the range of the segment to be tested. After the range of the segment to be tested is obtained, all the logic segments included in the range of the segment to be tested are obtained, and then the occupation information of the logic segments in the segment to be tested can be judged.
And S104, judging whether the section to be judged is occupied by UT according to the section to be judged occupation information and the logic section occupation information.
In some embodiments, after acquiring the occupation information of the to-be-determined section and the occupation information of the logic section, it may be determined whether the to-be-determined section is occupied by the UT.
In some embodiments, the occupation information of the to-be-determined section can only determine whether the to-be-determined section is occupied by the AT. If the section to be determined is known to be occupied by AT, the section to be determined is obviously not occupied by UT. If the section to be judged is not occupied by the AT, the occupation of the UT or occupation information and other situations caused by axle counting faults can occur, and whether the occupation of the section to be judged is occupied by the UT or not needs to be distinguished from the situations.
In some embodiments, if the segment to be determined has no occupancy information or AT occupancy, it may be determined that the segment with the skin is not occupied by the UT.
In some embodiments, the logical segment occupancy information includes logical segment presence UT occupancy, logical segment presence AT occupancy, and logical segment no occupancy.
In some embodiments, if the to-be-determined segment occupancy information is not AT occupancy and the logical segment has UT occupancy, the to-be-determined segment is occupied by UT.
In some embodiments, as shown in fig. 3, step S104, determining whether the to-be-determined segment is occupied by the UT according to the to-be-determined segment occupation information and the logic segment occupation information, further includes:
s301, if the occupation information of the section to be judged is not occupied by the AT and the logic section is occupied by the AT, the AT running direction is obtained.
In some embodiments, if the to-be-determined segment occupancy information is not AT occupancy and the logical segment has AT occupancy, in this case, even if the logical segment has AT occupancy, the non-communication train may be hidden, and therefore, further determination is required. When it is known that an AT occupies a logical zone, that is, a communication train runs, in order to determine whether a UT occupies a zone to be determined, the running direction of the communication train needs to be acquired first.
S302, performing head screening and tail screening on the AT, and acquiring a head screening result and a tail screening result.
In some embodiments, in order to determine whether the section to be determined is occupied by UT, after the operation direction of the communication train is obtained, a head sieve and a tail sieve are performed on the communication train, and a head sieve result and a tail sieve result are obtained.
In some embodiments, the ZC needs to perform head screening on the train with location, normal communication in order to determine whether to hide the non-communicating train ahead of the current communicating train. When the distance between the head of the current communication train and the axle counting point in front of the section where the current communication train is located is smaller than the minimum train length on the line and the adjacent physical section in front of the current communication train is cleared, the fact that the non-communication train is not hidden in front of the current communication train is indicated, and the head screen is in a success state. Otherwise, the head screen is in a failure state, and the failure of the head screen indicates that a non-communication train may be hidden in front of the current communication train.
In other embodiments, the ZC also needs to perform tail screening on the train with location and normal communication in order to determine whether the non-communication train is hidden behind the current communication train. When the distance between the tail end of the current communication train and the axle counting point behind the section where the current communication train is located is smaller than the minimum train length on the line and the adjacent physical section behind the current communication train is clear, the situation that the non-communication train is not hidden behind the current communication train is indicated, and the tail screen is in a successful state. Otherwise, the tail screen is in a failure state, and the failure of the tail screen indicates that a non-communication train may be hidden behind the current communication train.
And S303, judging the occupation state of the section UT to be judged according to the AT running direction, the head screening result and the tail screening result.
In some embodiments, the occupancy state of the section UT to be judged may be determined according to the AT running direction, the head screen result, and the tail screen result.
In some embodiments, if the AT is running close to the section to be determined and the head screen fails, the section to be determined UT is occupied. Specifically, when the AT operation direction is close to the section to be judged, if the head screen fails, it represents that a non-communication train is hidden in front of the communication train head, that is, the non-communication train is hidden between the communication train and the section to be judged, so that actually in the section to be judged, the logical section actually has the UT occupation condition, and therefore, the UT occupation of the section to be judged is obtained.
In other embodiments, if the AT is far from the section to be determined and the tail screen fails, it is determined that the section to be determined UT is occupied. Specifically, when the AT operation direction is the principle section to be judged, if the tail screen fails, it represents that a non-communication train is hidden behind the tail of the communication train, that is, the non-communication train is hidden between the communication train and the section to be judged, so that actually in the section to be detected, the UT occupation situation actually exists in the logic section, and therefore the UT occupation situation of the section to be judged is obtained.
In some embodiments, as shown in fig. 4, there is provided a zone controller 100, which includes a memory 102, a processor 103, a receiver 101, a transmitter 104, and a computer program stored on the memory and running on the processor, and when the processor executes the computer program, the section UT occupancy determination method in the above embodiments is implemented.
In some embodiments, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, implements the method for determining the occupancy of a segment UT in the above-described embodiments.
Other configurations and operations of the method for determining the occupancy of a segment UT according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A method for determining occupation of a sector UT, comprising:
acquiring occupation information of a section to be judged;
if the occupation information of the section to be judged is not occupied by AT, acquiring the range of the section to be judged;
judging logic section occupation information in the section to be detected according to the range of the section to be detected;
and judging whether the section to be judged is occupied by UT according to the section to be judged occupation information and the logic section occupation information.
2. The method for determining UT occupancy of a segment according to claim 1, wherein said obtaining a range of segments to be tested comprises:
acquiring the highest running speed of the non-communication train;
acquiring communication delay time;
determining a delay operation length according to the maximum operation speed of the non-communication train and the communication delay time;
and determining the range of the section to be tested according to the delay operation length.
3. The method of determining segment UT occupancy of claim 2, wherein said obtaining communication delay time comprises:
if all physical sections in the section to be detected are controlled by the local station area controller, the communication delay time is the sum of the axle counting acquisition delay time and the communication delay time of the interlocking of the area controller and the computer;
if part of physical sections in the section to be measured are controlled by the local station area controller, and the other part of physical sections are controlled by the adjacent station area controller, the communication delay time is the sum of the axis-counting acquisition delay time, the communication delay time of the adjacent station computer interlocking and the adjacent station area controller, and the communication delay time of the adjacent station area controller and the local station area controller.
4. The method of claim 1, wherein the logical sector occupancy information comprises a logical sector occupied by UT, a logical sector occupied by AT, and a logical sector unoccupied.
5. The method of determining the UT occupancy of a segment of claim 1, further comprising:
and if the section to be judged is not occupied or the AT is occupied, the section to be judged is not occupied by the UT.
6. The method according to claim 4, wherein the determining the occupation status of the to-be-determined segment UT according to the to-be-determined segment occupation information and the logic segment occupation information comprises:
and if the occupation information of the section to be judged is not occupied by AT and the logic section is occupied by UT, occupying the section to be judged by UT.
7. The method of claim 4, wherein the determining the occupation status of the segment UT according to the to-be-determined segment occupation information and the logic segment occupation information comprises:
if the to-be-judged zone occupation information is not occupied by AT and the logic zone is occupied by AT, acquiring the AT running direction;
performing head screening and tail screening on the AT, and acquiring a head screening result and a tail screening result;
and judging the occupation state of the section to be judged UT according to the AT running direction, the head sieve result and the tail sieve result.
8. The method for determining the occupation status of the segment UT according to claim 4, wherein the determining the occupation status of the segment UT to be determined according to the AT running direction, the head screen result, and the tail screen result comprises:
if the AT running direction is close to the section to be judged and the head screen fails, judging that the section to be judged UT occupies;
and if the AT running direction is far away from the section to be judged and the tail screen fails, judging that the section to be judged UT occupies.
9. A zone controller comprising a memory, a processor, a receiver, a transmitter and a computer program stored in said memory and executable on said processor, characterized in that said processor implements the steps of the method according to any of claims 1 to 8 when executing said computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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| CN115257888A (en) * | 2022-07-29 | 2022-11-01 | 青岛海信微联信号有限公司 | Train detection method, area controller and device |
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