CN110920683B - Train cross-pressure light turn-off command processing method and system - Google Patents
Train cross-pressure light turn-off command processing method and system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
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Abstract
The application provides a train cross-pressure light turn-off command processing method and system. The method comprises the following steps: the method comprises the steps that a region controller obtains a cross-voltage signal machine position range of a train, wherein the cross-voltage signal machine position range is the range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the suspension distance in the current period; judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock; the interlock controls the annunciator to change from the enable signal to the disable signal according to the cross-voltage light-off command. According to the method and the system, the new control principles such as the position range of the trans-voltage signal machine are set, the trans-voltage signal machine of the train which runs at a high speed and is small in train length can be monitored, the interlocking control signal machine is guaranteed to be normally changed into a forbidden signal and an unlocking route, and the train running efficiency is improved.
Description
Technical Field
The invention relates to the technical field of urban rail transit, in particular to a method and a system for processing a cross-pressure light-off command of a Train in a CBTC (communication Based Train control) system under a high-speed condition.
Background
At present, the CBTC system has become one of the core technologies in the urban rail transit field. In the CBTC system, trains operate in zones in a moving block manner, and a precondition for supporting this is that an interlock (abbreviated as CI) can handle a forward route for the train. When the front approach is handled in an interlocking mode, the sections which need to be included in the approach are normally unlocked, and a zone controller (ZC for short) unlocks a cross-pressure lamp turn-off command which depends on zone control. The existing solution for sending a cross-pressure light-off command by a zone controller is as follows: a position range which is subtracted by 20 meters from the tail of the vehicle to the front of the vehicle is set, and the position range is called a cross-pressure signal position range. This range of positions is time varying as the train is in motion. For a train that does not include a conventional CBTC for a work vehicle, the train length is typically 120 meters, so this location range is approximately 100 meters. The time required to cross the signal over this 100 meter range of positions often takes 6 seconds or more. In the time, if the ZC can receive the information that the annunciator is in the position range, the ZC sends a cross-voltage light-off command to the interlock, and when the interlock receives the cross-voltage light-off command of the ZC and acquires the occupation of the first zone in the annunciator, the annunciator is normally closed, and the access is normally unlocked. Otherwise, the annunciator is abnormally closed, and the access cannot be normally unlocked.
However, as the needs of subway signal systems increasingly present multi-level, diversified and multi-aspect characteristics, the above-mentioned cross-pressure light-off processing scheme is not applicable in some short car length and high car speed scenes. For example, the length of the vehicle forming the number 5 line is 56 meters or 30 meters or 15 meters, the speed of the vehicle reaches 80km/h, and for the condition that the length of the engineering vehicle is only 15 meters, the position range of the cross-voltage signal machine in the processing scheme is changed into a negative number, and obviously, the processing scheme is not applicable any more; and the time that the train passes through the signal machine under the high-speed condition may be less than 2 seconds to ZC can't judge that the signal machine is transpressed by the train and interlock receives the first district of interior side when transpressing turn-off light order and is clear when communication delays, leads to unable normal unblock, influences train operating efficiency scheduling problem.
Disclosure of Invention
In view of the above, the present invention mainly provides a train cross-pressure light-off processing method and system, which can correctly determine train cross-pressure and normally unlock an access road in a short length of train and high speed of train.
Therefore, one object of the present invention is to provide a train cross-pressure light-off processing method, which includes:
the method comprises the steps that a region controller obtains a cross-voltage signal machine position range of a train, wherein the cross-voltage signal machine position range is the range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the suspension distance in the current period;
judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock;
the interlock controls the annunciator to change from the enable signal to the disable signal according to the cross-voltage light-off command.
Further, the sending a cross-press light command to the interlock comprises:
the regional controller judges whether the information that the annunciator becomes the prohibition signal is received, and if so, the sending of the cross-voltage light turn-off command is stopped; otherwise, the cross-voltage light-off command is continuously sent.
Further, the duration of the continuous sending of the cross-pressure light-off command is not more than the maximum communication delay of the zone controller and the interlock plus 1 zone controller cycle.
Further, after sending a cross-pressure light-off command to the interlock, the zone controller judges whether the signaler has a process that the allowing signal becomes the prohibiting signal and then becomes the allowing signal, and if so, the back train is allowed to pass through the signaler.
Further, after the zone controller sends a cross-pressure light turn-off command to the interlock, if the light-off state of the annunciator is not received, whether all paths corresponding to the annunciator are clear or not is judged, and if the signals are allowed signals, the train at the rear is allowed to pass through the annunciator.
Further, when the interlock receives the cross-over light turn-off command, if the first section of the inner side is idle, delaying to wait for three interlock periods and judging whether the occupation of the first section of the inner side is acquired in the three interlock periods, if so, the signal machine normally becomes a forbidden state; otherwise the annunciator becomes disabled abnormally.
Further, if the judgment result that whether the position of the signal machine is in the cross-pressure signal machine position range is negative, and the train drives into the signal machine after the communication with the zone controller is interrupted, the route through which the train drives does not become a forbidden state and is not unlocked, alarm information is generated in an interlocking mode and is sent to the zone controller, and the zone controller tracks and protects the train.
According to a second aspect of the present invention, there is provided a train cross-pressure light-off processing system, comprising:
the area controller is used for acquiring the position range of a cross-pressure signal machine of the train, wherein the position range of the cross-pressure signal machine is the range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the overhang position in the current period;
judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock;
and the interlock is used for changing the control signal from an enable signal to a disable signal according to the cross-voltage lamp-turning-off command.
Further, after sending the cross-voltage light-off command to the interlock, the zone controller is further configured to:
receiving a light-out state of a signal machine sent by interlocking; judging whether the signaler has a process of changing an enabling signal into a prohibiting signal and then into an enabling signal according to the light-out state of the signaler, and if so, allowing a rear train to pass through the signaler;
if the light-out state of the annunciator sent by interlocking is not received, whether the corresponding access of the annunciator is completely clear or not is judged, and the annunciator is an allowable signal, if so, the train at the rear side is allowed to pass through the annunciator.
Further, when the interlock receives the cross-over light turn-off command, if the first section of the inner side is idle, delaying to wait for three interlock periods and judging whether the occupation of the first section of the inner side is acquired in the three interlock periods, if so, the signal machine normally becomes a forbidden state; otherwise the annunciator becomes disabled abnormally.
According to the train cross-pressure turn-off command processing method and system, the position range of the train cross-pressure annunciator is set, the train cross-pressure annunciator which runs at a high speed and is small in train length can be monitored, the interlocking control annunciator is guaranteed to be normally changed into a forbidden state and an access is unlocked, and the train running efficiency is improved; furthermore, a plurality of control principles are set for the zone controller and the interlocking, so that the monitoring reliability is improved, and the running safety of the train is ensured; and alarm information is generated by interlocking aiming at a communication abnormal scene, and a zone controller performs safety protection, so that the train safety under the abnormal scene is guaranteed.
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.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a flow chart of a train cross-pressure light command processing method according to the present invention;
FIG. 2 is a schematic diagram illustrating a range of cross-voltage signal positions in accordance with the present invention;
FIG. 3 illustrates a scenario diagram of principle 3 of a ZC system according to the invention;
FIG. 4 illustrates a scenario diagram of principle 4 of a ZC system according to the invention;
FIG. 5 illustrates a scenario diagram of an exception principle of the ZC system according to the invention;
fig. 6 shows an architecture diagram of a train cross-pressure light command processing system according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below. Note that the term "high speed" as used herein refers to a speed higher than 40KPH, and conventional work vehicles generally run at a speed lower than this speed.
Referring to fig. 1, a train cross-pressure light-off command processing method according to the present invention is shown, including the steps of:
s101, a region controller acquires a position range of a cross-pressure signal machine of a train, wherein the position range of the cross-pressure signal machine is a range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the suspension distance in the current period;
wherein the train is a CT train, the period is a ZC period, and one ZC period is configurable, optionally 400 milliseconds.
S102, judging whether the position of the annunciator is within the position range of the cross-voltage annunciator, if so, sending a cross-voltage light turn-off command to the interlock;
and S103, interlocking to change the enabling signal into the disabling signal according to the cross-voltage lamp-turning-off command control signal.
Wherein, the permission signal is a green light, and the prohibition signal is a red light or a turn-off signal.
Further, when the interlock receives the cross-over light turn-off command, if the first section of the inner side is idle, delaying to wait for three interlock periods and judging whether the occupation of the first section of the inner side is acquired in the three interlock periods, if so, the signal machine normally becomes a forbidden state; otherwise the annunciator becomes disabled abnormally. Through the mode of delaying three CI periods, the state of the first section in the inner side of the collection is more accurate, and the collection error caused by short vehicle length and high vehicle speed is avoided. Optionally, the CI period is configured to 300 milliseconds.
In step S102, the zone controller determines whether information that the annunciator becomes a prohibition signal is received, and if so, stops sending the cross-pressure light turn-off command; and otherwise, continuing to transmit the cross-voltage light-off command, wherein the transmitted time length is not more than the maximum communication delay of the zone controller and the interlock plus 1 ZC cycle, and the ZC-CI maximum communication delay is optionally configured to be 15 ZC cycles. The time length ensures that the interlock can receive the cross-press light-off command under the normal communication condition, and if the information that the signal becomes the prohibition signal is not received by the ZC beyond the time length, the communication between the ZC and the CI is considered to be interrupted.
Further, after sending a cross-pressure light-off command to the interlock, the zone controller judges whether the signal machine has a process that the signal machine becomes an enabling signal after being changed from an enabling signal to a prohibiting signal, if so, the train at the rear side is allowed to pass through the signal machine, otherwise, the train is not allowed to pass through. And if the area controller sends a cross-pressure light turn-off command to the interlock, if the light turn-off state of the annunciator is not received, judging whether all paths corresponding to the annunciator are clear or not and the annunciator is an allowable signal, if so, allowing the rear train to pass through the annunciator, otherwise, not allowing the rear train to pass through the annunciator.
Optionally, if the determination result that whether the position of the signal is within the range of the position of the cross-pressure signal is negative, and the train drives into the signal after the communication with the zone controller is interrupted, the train becomes an UT train, a driving route of the UT train does not become a forbidden state and is not unlocked, alarm information is generated in an interlocking manner and is sent to the zone controller, and the zone controller tracks and protects the train, so that the train safety under an abnormal scene is ensured.
According to the train cross-pressure light-off processing method provided by the embodiment, the train cross-pressure signal machine which runs at a high speed and is small in train length can be monitored by setting the position range of the new cross-pressure signal machine, normal light-off and unlocking access of the interlocking control signal machine are guaranteed, and the train running efficiency is improved; and furthermore, a plurality of control principles are set for the zone controller and the interlocking, so that the monitoring reliability is improved, and the running safety of the train is ensured.
Referring to fig. 2 to 5, which illustrate application scenarios of multiple principles in a train cross-ballast light-off processing method according to an embodiment of the present invention, specifically, the improvement of the present invention for a ZC system includes:
addition principle 1: defining a new cross-pressure signal location range, and setting the minimum safe rear end of the train after the minimum safe front end retreating suspension distance at the time of T2 to the minimum safe rear end of the train at the time of T1 as the new cross-pressure signal location range as shown in FIG. 2. The overhang distance varies depending on the vehicle type, and may be 4 meters, for example.
Addition principle 2: after sending a cross-voltage light turn-off command to the interlock, if receiving the information that the signal machine becomes a red light, stopping sending the cross-voltage light turn-off command; if the ZC does not receive the information (namely the ZC determines that the CI does not receive the cross-voltage light-off command), the cross-voltage light-off command is continuously sent, and the sending time length is +1 ZC period of the maximum communication delay of the ZC-CI, so that the interlock can receive the cross-voltage light-off command under the normal communication condition.
Addition principle 3: for the signal machine which is the CT vehicle passing through the train last time, after the ZC sends a cross-voltage light-off command, a process of green-red-green (namely changing the green light into the red light and changing the green light) is required, and when the ZC determines that the signal machine has the process according to the light-off state sent by the CI, the back CT vehicle is allowed to pass through the signal machine. As shown in fig. 3, when the traffic signal S1 receives the cross-over voltage traffic signal command transmitted when the traffic signal S1 passes through, if the display state of the traffic signal does not change from green to red and then from green to green, the MA (mobile authorization) of the traffic signal 2 cannot enter the traffic signal protection zone, even if the traffic signal state is open; when the above process occurs in the state of the signal, the MA of 2 vehicles can enter the section protected by the signal and normally track the tail of 1 vehicle.
Addition principle 4: if the light-out state sent by the CI to the ZC is lost, the ZC allows the rear CT train to pass through the signal until the corresponding access of the signal is completely cleared and the signal is a green light. This principle is complementary to principle 3 in view of rear vehicle safety. As shown in fig. 4, the process of the ZC loss signal S1 turning red, the MA of train 2 cannot enter the route before train 1 leaves the route. When the train 1 is out of the route and the traffic signal is green, the MA of the train 2 can enter the route.
In addition, for the abnormal situation that the communication between the VOBC and the ZC of the CT train is interrupted, an exception principle is added: before communication interruption, the annunciator is not in the position range of the cross-voltage annunciator, and the ZC system judges that the condition of sending the cross-voltage light-off command is not met; after communication is interrupted, the CT train is changed into the UT train and drives into the interior of the signal machine, the road where the train drives through is not turned off and unlocked, at the moment, alarm information is generated in an interlocking mode, and the UT train is tracked and protected by the ZC. And the movement authorization MA of the rear vehicle can not extend to the terminal of the route until the UT vehicle leaves the route protected by the signal machine, so that the safety of train operation is guaranteed. As shown in fig. 5a), train 1 has no communication interruption before signal S1, does not satisfy the cross-ballast light-off command condition, and ZC does not report the cross-ballast light-off command to the interlock; as shown in fig. 5b), when the actual position of the train 1 has moved to the inside of the access road after the communication of the train 1 is interrupted, the train 1 becomes the UT car, the access road on which the train 1 has traveled will not be turned off or unlocked, and at this time, an alarm message is generated by interlocking, and ZC tracks the UT car and protects.
The present invention is directed to improvements in CI systems including:
and deleting logic processing of abnormal light turning-off when the signal machine is close to the idle section and the signal machine is occupied. This logical processing function is replaced by the principle 3 of the ZC system.
The principle of addition is as follows: when the CI receives a ZC cross-voltage light-off command, the first zone of the interior is idle, three CI periods are delayed and waited, and if the occupation of the first zone of the interior is acquired in the three CI periods, the annunciator can be normally closed; and if the occupation of the first section at the inner side is not acquired in three CI periods, the signaler is abnormally closed, and the access is not unlocked. Through the mode of delaying three CI periods, the state of the first section in the inner side of the collection is more accurate, and the collection error caused by short vehicle length and high vehicle speed is avoided.
Based on the above principles of the ZC system and CI, the present invention can effectively handle the following scenarios compared to the existing schemes described in the background.
Scene 1: when the bicycle runs and the inside section is not occupied, the CI receives a cross-pressure light-off command firstly.
According to the scheme in the background technology, when the annunciator is judged to be in the position range of the over-voltage annunciator, the ZC sends an over-voltage light-off command to the CI, but the axle counting equipment of the CI does not feed back that the state of the first section in the inner side is occupied, so that the interlocking CI is judged to be abnormal. After the train drives into the access road and sequentially occupies the sections in the access road, the access road cannot be normally unlocked by interlocking, the train is forbidden to enter the non-unlocked access road, and the access road needs to be manually unlocked.
According to the embodiment of the invention, by the ZC system addition principle 3, when the annunciator passes through the green-red-green process, the rear CT vehicle can pass through the annunciator without manual unlocking.
Scene 2: when the bicycle runs and the train is cleared of the first section, the CI receives the cross-over lamp turn-off command sent by the ZC.
According to the scheme in the background technology, the communication delay between the VOBC and the ZC of the train and the communication delay between the ZC and the CI are caused by the problem of network communication, the CI does not receive the cross-voltage light-off command of the ZC until the train is cleared from the first section, and the CI judges the abnormality at the moment. That is, after the train enters the access and sequentially occupies the sections included in the access, the CI cannot normally unlock the access.
According to the embodiment of the invention, through the ZC system addition principles 2, 3 and 4, when the preset conditions are met, the rear CT vehicle is allowed to pass through the annunciator, so that potential safety hazards are avoided; and the acquired state of the first section in the interior is more accurate by adding the principle through the CI system.
Scene 3: when the bicycle runs and the speed of the bicycle is too high, the ZC cannot send out a cross-pressure light-off command or the CI cannot receive the cross-pressure light-off command.
According to the scheme in the background art, the short vehicle length and the high vehicle speed are very likely to cause that the ZC cannot detect the cross-voltage signal or only detects the cross-voltage signal once, and the CI cannot receive the cross-voltage light-off command. Before the train leaves the first section in the interior, the CI cannot close the signal machine; when the train clears the first section, the CI closes the signal machine, judges the abnormity, and after the sections contained in the access are cleared in sequence, the interlock can not normally unlock the access.
According to the embodiment of the invention, the ZC system adds the principle 1, and the set position range of the cross-pressure signal machine can effectively detect the train with short train length and high train speed, so that the CI receives and controls the signal machine according to the cross-pressure light-off command.
Scene 4: when two vehicles run, the front CT vehicle does not send a cross-pressure lamp turn-off command, and after entering a square axle counting in a signal machine, the communication fault of the CT vehicle is changed into a UT vehicle, so that the communication with the ZC is interrupted.
According to the scheme in the background art, in this case, the route traveled by the UT vehicle will not be turned off and unlocked, and the subsequent CT vehicle will follow the UT vehicle to enter the route, possibly posing a collision threat to the UT vehicle.
According to the embodiment of the invention, by adding an exception principle, in this case, the CI generates alarm information, and the ZC tracks and protects the UT vehicle, so that the threat of collision between the front vehicle and the rear vehicle is avoided.
Referring to fig. 6, there is shown a train cross-pressure light-off processing system according to the present invention, comprising:
the area controller 61 is used for acquiring a position range of a cross-pressure signal machine of the train, wherein the position range of the cross-pressure signal machine is a range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the overhang position in the current period;
judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock;
an interlock 62 for controlling the annunciator in accordance with the cross-press light turn-off command.
When the interlock 62 receives the cross-voltage light-off command, if the first internal segment is idle, delaying to wait for three interlock periods and judging whether the occupation of the first internal segment is acquired in the three interlock periods, if so, controlling the signal machine to be normally closed; if not, the control signal machine is abnormally closed. Through the mode of delaying three CI periods, the state of the first section in the inner side of the collection is more accurate, and the collection error caused by short vehicle length and high vehicle speed is avoided.
Further, after the zone controller 61 sends the cross-pressure light-off command to the interlock, the zone controller is further configured to:
judging whether the information that the annunciator is changed into the red light is received, if so, stopping sending the cross-voltage light turn-off command; otherwise, continuing to send the cross-voltage light-off command, wherein the sending time length is not more than the maximum communication delay of the zone controller 61 and the interlock 62 plus 1 ZC cycle, and the ZC-CI maximum communication delay is optionally configured to be 15 ZC cycles;
after a cross-pressure light turning-off command is sent to the interlock 62, whether the process that the green light is changed into the red light and then is changed into the green light exists in the signal is judged, if yes, a rear train is allowed to pass through the signal, and if not, the rear train is not allowed to pass through;
if after sending the cross-pressure turn-off light command to interlock 62, if do not receive the semaphore state of putting out the light, judge that the semaphore corresponds the access way and whether all go out clearly and the semaphore is green light, if yes, allow the rear train to pass through the semaphore, otherwise do not allow the permission.
Optionally, if the determination result of whether the position of the signal is within the range of the position of the cross-pressure signal is negative, and the train drives into the signal after the communication with the zone controller is interrupted, the train becomes an UT train, the driving route of the UT train is not turned off and is not unlocked, the interlock 62 is further configured to generate alarm information and send the alarm information to the zone controller 61, and the zone controller 61 is further configured to track and protect the train.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the described system may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed method and system may be implemented in other ways. The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A train cross-pressure light-off command processing method is characterized by comprising the following steps:
the method comprises the steps that a region controller obtains a cross-voltage signal machine position range of a train, wherein the cross-voltage signal machine position range is the range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the suspension distance in the current period;
judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock;
the interlock controls the annunciator to change from an enable signal to a disable signal according to the cross-voltage light-off command;
and after the zone controller sends a cross-pressure light-off command to the interlock, judging whether the signaler has a process of changing from an allowing signal to a prohibiting signal and then to an allowing signal, if so, allowing a rear train to pass through the signaler.
2. The method of claim 1, wherein sending a cross-ballast light command to an interlock comprises:
the regional controller judges whether the information that the annunciator becomes the prohibition signal is received, and if so, the sending of the cross-voltage light turn-off command is stopped; otherwise, the cross-voltage light-off command is continuously sent.
3. The method of claim 2, wherein the duration of the continued transmission of the cross-press light command is no greater than a maximum communication delay of the zone controller and interlock plus 1 zone controller cycle.
4. The method according to claim 1, wherein after the zone controller sends the cross-pressure light-off command to the interlock, if the light-off state of the signal is not received, whether all routes corresponding to the signal are clear or not is judged, and if the signals are the permission signals, the train behind is permitted to pass through the signal.
5. The method according to claim 1, characterized in that when the interlock receives the cross-over lamp turn-off command, if the internal first segment is idle, the interlock waits for three interlock periods in a delayed manner and judges whether the internal first segment is occupied in the three interlock periods, and if so, the signal normally changes to a forbidden state; otherwise the annunciator becomes disabled abnormally.
6. The method according to claim 1, wherein if the determination result of whether the position of the signal is within the range of the position of the cross-pressure signal is negative, and the train drives into the signal after the communication with the zone controller is interrupted, the route through which the train runs does not become a forbidden state and is not unlocked, the train is tracked and protected by the zone controller, and alarm information is generated by interlocking and sent to the zone controller.
7. A train cross-pressure light-off command processing system, comprising:
the area controller is used for acquiring the position range of a cross-pressure signal machine of the train, wherein the position range of the cross-pressure signal machine is the range between the position of the minimum safety rear end of the train in the previous period and the position of the minimum safety front end of the train minus the overhang position in the current period;
judging whether the position of the annunciator is within the position range of the cross-pressure annunciator, if so, sending a cross-pressure light turn-off command to the interlock;
the interlock is used for controlling the signaler to change from an enable signal to a disable signal according to the cross-voltage lamp-turning-off command;
after sending the cross-voltage light-off command to the interlock, the zone controller is further configured to:
receiving a light-out state of a signal machine sent by interlocking; and judging whether the signaler has a process of changing the enabling signal into the prohibiting signal and then into the enabling signal according to the light-out state of the signaler, and if so, allowing the rear train to pass through the signaler.
8. The system of claim 7, wherein the zone controller, after sending the cross-press light-off command to the interlock, is further configured to:
if the light-out state of the annunciator sent by interlocking is not received, whether the corresponding access of the annunciator is completely clear or not is judged, and the annunciator is an allowable signal, if so, the train at the rear side is allowed to pass through the annunciator.
9. The system according to claim 7, wherein when the interlock receives the cross-voltage light-off command, if the internal first segment is idle, the interlock waits for three interlock periods in a delayed manner and judges whether the internal first segment is occupied in the three interlock periods, and if so, the signal normally changes to a forbidden state; otherwise the annunciator becomes disabled abnormally.
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| CN114454918B (en) * | 2022-01-21 | 2023-10-13 | 北京全路通信信号研究设计院集团有限公司 | Method and system for improving receiving and dispatching efficiency in station |
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| CN102556120B (en) * | 2011-12-22 | 2014-10-15 | 北京交控科技有限公司 | Interlock access control method |
| GB201206465D0 (en) * | 2012-04-12 | 2012-05-30 | Westinghouse Brake & Signal | Interlocking systems |
| CN102951186B (en) * | 2012-10-30 | 2015-05-27 | 北京交控科技有限公司 | Method for computing signaler trans-voltage command |
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