CN112550374B - Method and system for logically checking interval occupation of single-wire bidirectional automatic block line - Google Patents
Method and system for logically checking interval occupation of single-wire bidirectional automatic block line Download PDFInfo
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- CN112550374B CN112550374B CN202011283319.1A CN202011283319A CN112550374B CN 112550374 B CN112550374 B CN 112550374B CN 202011283319 A CN202011283319 A CN 202011283319A CN 112550374 B CN112550374 B CN 112550374B
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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 vehicle trains
- B61L23/22—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in two directions over the same pair of rails
- B61L23/30—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in two directions over the same pair of rails using automatic section blocking
Abstract
The invention relates to a method and a system for checking interval occupation logic of a single-wire bidirectional automatic block line, wherein the method comprises the following steps: s1, arranging an unlocking button corresponding to each block partition on the manual unlocking disc, and arranging a closing button corresponding to each direction opening; s2, carrying out corresponding safety processing on the condition that the single-line bidirectional signal machine is juxtaposed and the block subarea comprises a plurality of track sections; s3, for the condition that single-wire bidirectional signal machines are juxtaposed and only one track section is contained in each block subarea, each block subarea is provided with an interval protection relay; s4, when the section protection relay falls down, controlling the track relay of the head section of the block partition not to be excited; and S5, pressing a corresponding unlocking button on the manual unlocking disk for the blocked subarea with the lost shunt, releasing the protection of the blocked subarea, sucking up a corresponding section protection relay and the like. Compared with the prior art, the invention has the advantages of improving the driving safety and the like.
Description
Technical Field
The invention relates to a signal control technology of rail transit, in particular to a method and a system for logically checking the occupation of a single-line bidirectional automatic block line.
Background
At present, the logic check equipment occupied by the section is mainly applied to a double-wire line, an automatic block system is adopted when the line runs in the positive direction, the section allows a plurality of trains to track and run, when the track circuit occupied by the train loses the shunt, the rear train cannot judge the position of the front train, and collision danger may occur, so that the logic check function needs to be started for protection, the driving safety is ensured, the automatic block system between stations is adopted when the track circuit runs in the reverse direction, the section can only run one train, the probability that all track circuits of the whole section lose the shunt is extremely low, and the logic check function is usually closed.
For a single-line bidirectional automatic block operation line, as a plurality of trains are allowed to track and operate when the interval operates in the forward and reverse directions, a logic check function needs to be started for protection in both directions. If only one protective relay is arranged during the forward and reverse running of the interval, the existing coding lighting circuit is influenced, and the normal running of the interval is influenced. Therefore, how to realize the interval occupation logic check of the single-line bidirectional juxtaposed signal machine line, thereby ensuring the driving safety of the train becomes the technical problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method and a system for checking the interval occupation logic of a single-wire bidirectional automatic block line.
The purpose of the invention can be realized by the following technical scheme:
according to one aspect of the invention, a method for checking the zone occupation logic of a single-wire bidirectional automatic block line is provided, which comprises the following steps:
step S1, an unlocking button is arranged on the manual unlocking disc corresponding to each block partition, and a closing button is arranged corresponding to each direction opening;
step S2, corresponding safety processing is carried out on the condition that the single-line bidirectional signal machine is juxtaposed and the block subarea comprises a plurality of track sections;
step S3, for the condition that the single-line bidirectional annunciators are juxtaposed and only one track section is contained in the block subarea, each block subarea is provided with an interval protection relay;
step S4, when the section protection relay falls down, the track relay of the head section of the block partition is controlled not to be excited, and the track relay is used for relay coding and lighting circuit protection;
step S5, for the blocked subarea which loses the shunt, pressing a corresponding unlocking button on a manual unlocking disc, releasing the protection of the blocked subarea, and sucking up a corresponding section protection relay;
and step S6, pressing a closing button on the manual unlocking disc, closing the logic checking function corresponding to the direction port, and sucking up all the interval protection relays.
Preferably, the step S2 includes:
and step S21, setting two section protection relays for each block partition, and respectively connecting the two section protection relays in series in the excitation circuit of the existing track relay in the first section of the block partition according to the running direction.
Preferably, the step S2 further includes:
and step S22, when the section running direction is determined, the protective relay in the same running direction is effective, and the system controls the section protective relay in the corresponding reverse direction to suck up normally.
Preferably, the step S2 further includes:
and step S23, when the interval running direction is unknown, the two-way protective relays are simultaneously effective to perform safety side protection.
Preferably, the step S2 further includes:
and step S24, when the interval is idle, the system controls the interval protection relay corresponding to the positive direction to suck up.
Preferably, the step S2 further includes:
and step S25, the system judges whether the track circuit loses the shunt in real time, and when the track circuit loses the shunt, the system controls the interval protection relay in the positive direction corresponding to the block subarea to fall down.
Preferably, the step S2 further includes:
and step S26, changing the running direction of the section, and in the action process of the directional circuit, falling down the forward and reverse section protection relays corresponding to the blocking sections which lose the shunt, and sucking up the forward and reverse section protection relays corresponding to the idle blocking sections.
Preferably, the step S2 further includes:
and step S27, finishing the action of the directional circuit, changing the operation direction of the interval into a reverse direction, sucking up all the interval protection relays corresponding to the forward direction, and keeping the interval protection relays corresponding to the reverse direction falling off the blocked subareas without branches.
As a preferable technical solution, when the interval in step S3 runs in forward and reverse directions, both protection is performed by the same protection relay, so as to reduce the design of redundant combination circuits.
According to another aspect of the invention, a system for the method for checking the section occupation logic of the single-line bidirectional automatic block line is provided, which comprises a manual unlocking disc device (11), a section comprehensive monitoring device (12) and a relay module (13);
the manual unlocking disc device (11) is connected with the interval comprehensive monitoring device (12) and is used for judging whether the interval loses shunt unlocking and controlling the logic checking function of the interval to be started or not;
the interval comprehensive monitoring equipment (12) is connected with the relay module (13) and used for driving the interval protection relay to act, so that relay codes and lighting circuits are influenced, and train operation protection is carried out.
Compared with the prior art, the invention has the following advantages:
1. by optimally combining the design of the circuit and the logic processing of the system, the system can complete the logic checking function of the occupation of the interval of the single-line bidirectional juxtaposed signal machine line, and the running safety of the train is ensured.
2. The invention enables the comprehensive interval monitoring equipment to be applied to the automatic block line with the juxtaposed single-line bidirectional annunciators, and can realize that the comprehensive interval monitoring equipment adopts different protection schemes when being applied to lines with different block systems through data configuration, thereby improving the adaptability of the system.
3. The invention is combined with the circuit for changing the running direction of the interval, can realize the targeted interval logic check protection in the changing process, does not influence the existing circuit for changing the running direction, and simultaneously realizes the bidirectional logic check function.
4. The invention only simply modifies the driving logic of the section protective relay applied to the section comprehensive monitoring equipment, has small modification range and does not influence other functions of the section comprehensive monitoring equipment.
5. When the comprehensive interval monitoring equipment is applied to the automatic block line with the juxtaposed single-line bidirectional annunciators, the invention simplifies the setting of the manual dial interface, is beneficial to field personnel to use and improves the maintainability of the system.
Drawings
FIG. 1 is a schematic diagram of the equipment relationship of the system of the present invention;
FIG. 2 is a diagram of an exemplary site for the method of the present invention;
FIG. 3 is a diagram illustrating manual unlocking provided by the present invention;
FIG. 4 is a schematic diagram of a modification of an existing GJ circuit provided by the present invention;
FIG. 5 is a schematic diagram of the logic processing of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention relates to a logical checking method for the interval occupation of a single-wire bidirectional automatic block line, which specifically comprises the following steps:
and step S1, arranging an unlocking button corresponding to each block partition on the manual unlocking disk, and arranging a closing button corresponding to each direction opening.
Step S2, in the case where the single-line bidirectional signal is juxtaposed and the block section includes a plurality of track segments:
and step S21, setting two section protection relays for each block partition, and respectively connecting the two section protection relays in series in the excitation circuit of the existing track relay in the first section of the block partition according to the running direction.
And step S22, when the section running direction is determined, the protective relay in the same running direction is effective, and the system controls the section protective relay in the corresponding reverse direction to suck up normally.
And step S23, when the interval running direction is unknown, the two-way protective relays are simultaneously effective to perform safety side protection.
And step S24, when the interval is idle, the system controls the interval protection relay corresponding to the positive direction to suck up.
And step S25, the system judges whether the track circuit loses the branch circuit in real time. When the track circuit loses the shunt, the system controls the interval protection relay in the positive direction corresponding to the block subarea to fall down.
And step S26, changing the running direction of the section, and in the action process of the directional circuit, falling down the forward and reverse section protection relays corresponding to the blocking sections which lose the shunt, and sucking up the forward and reverse section protection relays corresponding to the idle blocking sections.
And step S27, finishing the action of the directional circuit, changing the operation direction of the interval into a reverse direction, sucking up all the interval protection relays corresponding to the forward direction, and keeping the interval protection relays corresponding to the reverse direction falling off the blocked subareas without branches.
And step S3, setting a section protection relay for each block subarea under the condition that the single-line bidirectional annunciators are juxtaposed and the block subareas only contain one track section. When the interval operates in the forward and reverse directions, the protection is carried out through the same protection relay, and the design of a redundancy combination circuit is reduced.
And step S4, when the section protection relay falls down, controlling the track relay of the head section of the block section not to be excited for relay coding and lighting circuit protection.
And step S5, for the blocked subarea with the lost shunt, pressing a corresponding unlocking button on the manual unlocking disk, releasing the protection of the blocked subarea, and sucking up a corresponding section protection relay.
And step S6, pressing a closing button on the manual unlocking disc, closing the logic checking function corresponding to the direction port, and sucking up all the interval protection relays.
The embodiment of the invention provides a system for realizing single-line bidirectional annunciator collocation automatic block line interval occupation logic check, and a relation diagram of each device in the system is realized, referring to fig. 1, and the system comprises: manual unlocking disc equipment 11, interval comprehensive monitoring equipment 12 and a relay module 13.
The manual unlocking disc device is connected with the interval comprehensive monitoring device and used for logically checking whether the interval loses shunt unlocking and controls the interval to be opened or not.
The section comprehensive monitoring equipment is connected with the relay module and used for driving the section protection relay to act, so that relay coding and a lighting circuit are influenced, and train operation protection is carried out.
Fig. 2 is a station yard diagram of an exemplary station, and the station a section has only one operating line, and both the forward direction and the reverse direction are of an automatic blocking system.
The downlink section signals are 1001, 1011, and 1021, respectively, and the uplink section signals are 1002, 1012, and 1022, respectively.
Where 1001 and 1002 are at the same signal point, 1011 and 1012 are at the same signal point, and 1021 and 1022 are at the same signal point.
Fig. 3 is a diagram illustrating manual unlocking according to the method of the present invention:
and a closing button is arranged at the X port, and when the interval runs in the forward and reverse directions, the logic checking function is synchronously opened/closed.
The blocking sections 1001G, 1011G and 1021G are provided with a set of unlocking buttons and indication lamps, respectively, and the same buttons and indication lamps are used when the section is operated in the forward and reverse directions.
Fig. 4 shows a modified schematic diagram of an existing GJ circuit for implementing the method for detecting the occupation logic of the single-line bidirectional automatic block line section according to the present invention:
1001G includes only one block section, and is provided with one section protection relay.
For 1011G, the section protective relay in downlink operation is connected in series in the GJ circuit of 1011 BG; the section protection relay in the uplink operation is connected in series with a GJ circuit of 1011 AG.
For 1021G, the downstream section protection relay is connected in series in the GJ circuit of 1021 CG; the section protection relay in the uplink operation is connected in series with a GJ circuit of 1021 AG.
Fig. 5 is a schematic diagram of the logic processing procedure of the system of the present invention, which is illustrated as follows:
and step 51, judging the running direction of the interval, and controlling the protection relay opposite to the running to suck up.
The system can judge the running direction of the current interval through self logic judgment or external input. When the direction is determined, the protection relay acting in the reverse operation is driven to suck. And when the section direction cannot be acquired, the driving command of the protective relay is not output.
For the case that only one section is contained in the block subarea, the same protective relay is adopted in the forward direction and the reverse direction, and the step is skipped.
And step 52, carrying out train occupation checking and judgment on the track circuit, and driving the protective relay in the same direction as the current running direction to fall down when the shunt is lost.
The system judges whether the section track circuit has the shunt loss fault in real time by judging the train running logic. If the shunt fault is lost, the protection relay suitable for the current running direction is driven to fall down to implement protection.
And if the system does not acquire the interval direction, driving the bidirectional protective relay to fall down.
When the system detects that the section is changing the running direction, if the section has the protection relay which is driven to fall, the system simultaneously drives the protection relay corresponding to the same block subarea in the opposite direction to fall, and protection is implemented.
For the protective relay which is driven to suck up in the original running direction, the sucking up should be kept, and the normal change of the running direction of the state influence interval of the protective relay is prevented.
And after the system detects that the direction circuit stops operating, judging the section operation direction again. And the protective relay is driven according to the same processing principle as the step 51.
If the release of the shunt losing state of a certain section is confirmed manually through a manual unlocking disc, as 1011G-RJA in fig. 3, the bidirectional protection relay corresponding to the block section is driven to suck no matter whether the section has a direction or not, and a subsequent train can enter the block section to run.
If the logic check protection function of a certain interval port is manually confirmed to be closed through the manual unlocking disk, such as X-GBA in figure 3, all the protection relays in the two directions corresponding to the interval port are driven to suck up at the same time. The system no longer implements the logical check guard function.
The method and the system for realizing the logic check of the occupation of the single-wire bidirectional automatic block line section solve the problem that the design of the reverse protection circuit of the single-wire bidirectional juxtaposed signal machine affects the forward relay coding circuit and causes coding errors by optimally combining the circuit design and the logic processing of the system, complete the function of the logic check of the occupation of the single-wire bidirectional juxtaposed signal machine section, protect the fault condition of poor shunting of the track circuit, and improve the driving safety.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for checking the logic of the occupation of a single-line bidirectional automatic block line is characterized by comprising the following steps:
step S1, an unlocking button is arranged on the manual unlocking disc corresponding to each block partition, and a closing button is arranged corresponding to each direction opening;
step S2, corresponding safety processing is carried out on the condition that the single-line bidirectional signal machine is juxtaposed and the block subarea comprises a plurality of track sections;
step S3, for the condition that the single-line bidirectional annunciators are juxtaposed and only one track section is contained in the block subarea, each block subarea is provided with an interval protection relay;
step S4, when the section protection relay falls down, controlling the track relay of the head section of the block partition not to be excited, and using the track relay for relay coding and lighting circuit protection;
step S5, for the block subarea with the lost shunt, pressing a corresponding unlocking button on the manual unlocking disk, releasing the protection of the block subarea, and sucking up a corresponding section protection relay;
s6, pressing a closing button on the manual unlocking disc, closing the logic checking function of the corresponding direction port, and sucking up all the interval protection relays;
the step S2 includes:
and step S21, setting two section protection relays for each block partition, and respectively connecting the two section protection relays in series in the excitation circuit of the existing track relay in the first section of the block partition according to the running direction.
2. The method for checking the block occupation logic of a single-wire bidirectional automatic block line according to claim 1, wherein the step S2 further comprises:
and step S22, when the interval running direction is determined, the protection relay with the same running direction is effective, and the system controls the interval protection relay with the corresponding reverse direction to suck up normally.
3. The method for checking the block occupation logic of a single-wire bidirectional automatic block line according to claim 2, wherein the step S2 further comprises:
and step S23, when the interval running direction is unknown, the two-way protective relays are simultaneously effective to perform safety side protection.
4. The method for checking the block occupation logic of a single-wire bidirectional automatic block line according to claim 3, wherein the step S2 further comprises:
and step S24, when the interval is idle, the system controls the interval protection relay corresponding to the positive direction to suck up.
5. The method for checking the block occupation logic of a single-wire bidirectional automatic block line according to claim 4, wherein the step S2 further comprises:
and step S25, the system judges whether the track circuit loses the shunt in real time, and when the track circuit loses the shunt, the system controls the interval protection relay in the positive direction corresponding to the block subarea to fall down.
6. The method for checking the zone occupancy logic of the single-wire bidirectional automatic block line according to claim 5, wherein the step S2 further comprises:
and step S26, changing the running direction of the sections, wherein in the action process of the directional circuit, the section protection relays in the positive and negative directions corresponding to the blocking sections losing the shunt fall down, and the section protection relays in the positive and negative directions corresponding to the idle blocking sections suck up.
7. The method for checking the zone occupancy logic of the single-wire bidirectional automatic block line according to claim 6, wherein the step S2 further comprises:
and step S27, finishing the action of the directional circuit, changing the operation direction of the interval into a reverse direction, sucking up all the interval protection relays corresponding to the forward direction, and keeping the interval protection relays corresponding to the reverse direction falling off the blocked subareas without branches.
8. The method for checking the interval occupancy logic of the single-wire bidirectional automatic block line according to claim 1, wherein the intervals in the step S3 are protected by the same protection relay during forward and reverse operations, so as to reduce redundant combination circuit design.
9. A system for the logical check of the section occupancy of a single-wire bidirectional automatic block line according to claim 1, characterized by comprising a manual unlocking disk device (11), a section comprehensive monitoring device (12) and a relay module (13);
the manual unlocking disc device (11) is connected with the interval comprehensive monitoring device (12) and is used for judging whether the interval loses shunt unlocking and controlling the logic checking function of the interval to be started or not;
the interval comprehensive monitoring equipment (12) is connected with the relay module (13) and used for driving the interval protection relay to act, so that relay codes and lighting circuits are influenced, and train operation protection is carried out.
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| CN202011283319.1A CN112550374B (en) | 2020-11-17 | 2020-11-17 | Method and system for logically checking interval occupation of single-wire bidirectional automatic block line |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275013B (en) * | 2021-11-29 | 2023-07-28 | 国能朔黄铁路发展有限责任公司 | Automatic block system, automatic block control method and device |
| CN114137940B (en) * | 2021-11-29 | 2024-03-12 | 卡斯柯信号有限公司 | Method for automatically switching section occupation logic inspection according to section running direction |
| CN115402382A (en) * | 2022-08-11 | 2022-11-29 | 卡斯柯信号有限公司 | Logic inspection system for occupation of unattended station area and use method |
| CN116215617B (en) * | 2023-05-10 | 2023-07-28 | 卡斯柯信号(北京)有限公司 | Manual unlocking disc monitoring method and device |
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