Automatic train monitoring system and method thereof for automatically recovering normal operation of train

Abstract

According to the automatic train monitoring system and the method for automatically recovering the normal operation of the trains, the automatic train monitoring system calculates an updated matching reference between the trains and a planned operation line, and when the operation is recovered, the automatic train monitoring system enables all the trains to be matched with a new planned operation line according to the updated matching reference for operation. According to the invention, efficient operation of the whole system can be effectively ensured, the influence of sudden faults on the operation order is reduced to the greatest extent, the travel experience of passengers is ensured, the efficiency of scheduling work is improved, the availability of the whole system is enhanced, and more powerful support is provided for stable operation of urban rail transit.

Description

Technical Field

[0001] The present invention relates to a train automatic monitoring system and a method for automatically resuming normal train operation. Background Art

[0002] The current train automatic monitoring system (ATS) has obvious deficiencies in practical applications: First, the system overly relies on manual experience. When a fault occurs, the dispatcher needs to manually process a large amount of data and equipment information, with low efficiency and prone to errors. Second, when the system adjusts the train operation plan, it usually only focuses on reducing the delay time and ignores key factors such as passenger flow changes and power load, resulting in an unrealistic plan. Third, it is difficult for existing technologies to coordinate resource sharing among multiple lines. Especially in complex faults, single-line adjustments often trigger chain problems in other lines. In addition, the system has insufficient ability to handle new types of compound faults, and the preset fixed rules cannot flexibly adapt to emergencies. Finally, the data prediction model relies on historical data, cannot accurately predict the propagation impact of emergencies, and the fusion processing of multiple types of data is slow, resulting in serious delays in adjustment instructions. These problems limit the rapid recovery ability of the rail transit system after a fault, and there is an urgent need for a more intelligent solution.

[0003] The statements here only provide background art related to the present invention and do not necessarily constitute prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a train automatic monitoring system and a method for automatically resuming normal train operation, which can effectively ensure the efficient operation of the entire system, minimize the impact on the operation order caused by sudden faults to the greatest extent, guarantee the travel experience of passengers, improve the efficiency of dispatching work, enhance the availability of the entire system, and provide stronger support for the stable operation of urban rail transit.

[0005] To achieve the above purpose, the present invention provides a method for automatically resuming normal train operation, which is used to automatically resume normal train operation when there are large-scale delays in the operation line. The operation line includes multiple planned operation lines, and the multiple planned operation lines are sorted according to the initial departure time. Each train is matched with a planned operation line, and the train after matching operates according to the planned operation line it matches. The method for automatically resuming normal train operation includes:

[0006] The train automatic monitoring system determines the time for the entire line to resume operation, and the train automatic monitoring system designates a certain train as the current reference train;

[0007] Among all the planned operation lines in the operation line, obtain the planned operation line closest to the reference train, and use this closest planned operation line as the current matching operation line of the reference train;

[0008] Calculate the sequence interval between the current matching operation line of the current train and the original planned operation line that the reference train originally matched. Translate the current matching operation lines of the remaining trains from the original planned operation lines to the new planned operation lines according to the sequence interval, so that the current matching operation lines of all trains form a re-matching list under the current reference train;

[0009] Calculate the operation deviation ΔT of each train from the current matching operation line according to the current position of each train and the full-line resumption operation time i , and after accumulating the operation deviations of all trains, obtain the total operation deviation under the current reference train i is a natural number;

[0010] Designate the remaining trains in the operation route as the current reference train in turn, calculate the total operation deviation under different trains as the current reference train, and select the re-matching list corresponding to the minimum total operation deviation as the updated matching benchmark between the train and the planned operation line;

[0011] The train automatic monitoring system orders all trains to match the new planned operation line according to the updated matching benchmark for operation.

[0012] The method for obtaining the planned operation line closest to the reference train includes: retrieving the departure time of all planned operation lines at this position according to the current position of the reference train, and identifying the planned operation line with the smallest time gap between the departure time and the full-line resumption operation time as the closest planned operation line.

[0013] The method for calculating the operation deviation includes: assuming that the full-line resumption operation time is t, and the departure time of the current matching operation line at the current position of the train is t i , then the operation deviation ΔT i is: ΔT i =│t i -t│.

[0014] Before the train automatic monitoring system executes the method for automatically resuming the normal operation of the train, it pre-orders all trains on the operation line to depart at equal intervals.

[0015] The train automatic monitoring system determines whether each train is successfully matched with the new planned operation line. If the operation deviation of the train from the new planned operation line is greater than the deviation range allowed by the system, it is considered that the matching is unsuccessful; otherwise, it is considered that the matching is successful. For the trains with successful matching, operate according to the new planned operation line.

[0016] The deviation range allowed by the system is 30 minutes.

[0017] For the trains with unsuccessful matching, continue to run to the terminal according to the original destination.

[0018] When more than 70% of the trains are delayed, it is considered that a large-scale delay has occurred.

[0019] The present invention also provides a train automatic monitoring system, which is used to implement the method for automatically restoring the normal operation of the train as described above.

[0020] The present invention has the following beneficial effects:

[0021] 1. Based on the benchmark operation rapid recovery adjustment method, for the diverse operation scenarios of urban rail transit, a rapid recovery operation solution after sudden operation failures is carefully designed and optimized, which has wide generality. Users can flexibly select according to their actual needs to meet the requirements of different operation conditions.

[0022] 2. Compared with the conventional operation recovery method, when dealing with complex scenarios such as large-scale delays, it shows significant practical significance, can effectively ensure the efficient operation of the entire system, minimize the impact on the operation order caused by sudden failures to the greatest extent, and guarantee the travel experience of passengers.

[0023] 3. It can, to a certain extent, reduce the workload of dispatchers, enabling them not to overly focus on some conventional recovery processes, so that they can invest more energy in the control of key links. This not only improves the efficiency of dispatching work but also further enhances the usability of the entire system, providing stronger support for the stable operation of urban rail transit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flowchart of a method for automatically restoring the normal operation of a train provided by the present invention.

[0025] Figure 2 is Figure 1 a specific flowchart of step S1 in

[0026] Figure 3 is Figure 1 a specific flowchart of step S2 in

[0027] Figure 4 is the planned line operation diagram in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following specifically describes the preferred embodiments of the present invention according to Figures 1 to 4 ,

[0029] The control of multi - route trains in the train automatic monitoring system means that when the train arrives at the platform, the system will compare the current arrival time of the train with the planned arrival time of this station preset in the database on the same day. If the train arrives early, that is, an early arrival situation occurs, the system will appropriately extend the stopping time of the train at this platform and at the same time increase the running speed of the train in the next section, so as to make the train operation as close as possible to the established plan. On the contrary, if the train is late, the system will try to shorten the stopping time of the train at this platform as much as possible and reduce the running speed of the train in the next section to make the train operation return to the plan. This conventional adjustment method can cope with general train operation conditions, such as the train being late due to a large passenger flow at a certain station. However, when encountering special situations such as sudden train failures or signal equipment failures on the platform side, resulting in large time deviations of the train being early or late, relying solely on the above - mentioned conventional methods can no longer adjust the train operation within the normal planned range. Therefore, for such special situations, a special rapid recovery adjustment method is urgently needed.

[0030] The present invention provides a method for automatically restoring the normal operation of trains, which can automatically and quickly restore all trains on the operation line to normal operation after a large - area train delay occurs on the operation line (that is, most trains on the operation line are late. Usually, when more than 70% of the trains are late, it can be considered that a large - area train delay has occurred). The operation line includes multiple planned operation lines, and the multiple planned operation lines are sorted according to the initial departure time. Each train is matched with a planned operation line, and the train after matching operates according to the planned operation line it matches.

[0031] As Figure 1 shown, a method for automatically restoring the normal operation of trains provided by the present invention includes the following steps:

[0032] Step S1: The train automatic monitoring system calculates the updated matching benchmark between the train and the planned operation line;

[0033] Step S1.1: Let all trains on the operation line depart at equal intervals;

[0034] Step S1.2: The train automatic monitoring system determines the time for the whole line to resume operation, and the train automatic monitoring system designates a certain train as the current reference train;

[0035] Step S1.3: Based on the current position of the reference train and the full-line resumption operation time, search for the planned operation line closest to the reference train among all the planned operation lines in the operation line. That is, retrieve the departure time of all the planned operation lines at the position of the reference train according to the current position of the reference train, and identify the planned operation line with the smallest time gap between the departure time and the full-line resumption operation time as the closest planned operation line, and use this closest planned operation line as the current matching operation line of the reference train;

[0036] Step S1.4: Calculate the sequence interval between the current matching operation line and the originally matched planned operation line of the reference train, and translate the current matching operation lines of the other trains from the originally matched planned operation lines to the new planned operation lines according to the sequence interval. Then, the current matching operation lines of all the trains form a re-matching list under the current reference train;

[0037] Step S1.5: According to the current position of each train and the full-line resumption operation time, calculate the operation deviation between each train and the current matching operation line (the operation deviation includes the early departure deviation or the late arrival deviation. For example, assume that the full-line resumption operation time is t, and the departure time of the current matching operation line at the current position of the train is t i , then the operation deviation ΔT i is: ΔT i =│t i -t│. If t is less than t i , it is an early departure. If t is greater than t i , then it is a late arrival), and after accumulating the operation deviations of all the trains, obtain the total operation deviation under the current reference train i is a natural number;

[0038] Step S1.6: Designate the other trains in the operation route as the current reference train in turn, calculate the total operation deviation under different trains as the current reference train according to steps S1.3 to S1.5, and select the re-matching list corresponding to the smallest total operation deviation as the updated matching benchmark.

[0039] As Figure 2 shown, the specific operation steps for finding the optimal re-matching list as the updated matching benchmark include:

[0040] Step 1: The train automatic monitoring system starts polling all the trains;

[0041] Step 2: Determine whether all the trains have been polled. If not all have been polled, go to Step 3; if all have been polled, go to Step 6;

[0042] Step 3: Regarding the currently polled train, use it as the reference train. Based on its current location, current time, and the pre - determined planned operation line for the current day in the database, find the planned operation line with the smallest deviation as the current matching operation line of the reference train, and then proceed to Step 4;

[0043] Step 4: According to the sequence interval between the current matching planned operation line of the reference train and the originally matched planned operation line of the reference train, shift other trains to the corresponding new planned operation lines to generate a re - matching list under the current reference train, and then proceed to Step 5;

[0044] Step 5: Calculate the deviation time of the re - matching list and compare it with the optimal re - matching list. If the deviation of the new list is smaller, then retain it as the optimal re - matching list; otherwise, retain the original optimal re - matching list, and then return to Step 2;

[0045] Step 6: Based on the polling results, send the reference with the smallest early - or - late deviation and send its corresponding matching list as the optimal matching list.

[0046] Step S2: When resuming operations, the train automatic monitoring system orders all trains to match new planned operation lines according to the updated matching reference for operation;

[0047] The train automatic monitoring system determines whether each train successfully matches the new planned operation line. If the operation deviation of the train from the new planned operation line exceeds the deviation range allowed by the system (usually the allowed deviation is set to be less than or equal to 30 minutes), it is considered that the matching is unsuccessful; otherwise, it is considered that the matching is successful;

[0048] For trains with successful matching, operate according to the new planned operation line;

[0049] For trains with unsuccessful matching, continue to run to the terminal station according to the original destination.

[0050] As Figure 3 shown, the specific operation steps for ordering all trains to match new planned operation lines according to the updated matching reference include:

[0051] Step 1: The train automatic monitoring system starts and conducts a polling operation on all trains;

[0052] Step 2: Real - time judge whether the polling of all trains has been completed. If not all trains have been polled, jump to Step 3 to continue execution. If all polling has been completed, the process ends;

[0053] Step 3: For the train currently being polled, the system determines whether the train can match the planned operation line corresponding to the best benchmark based on the position of the train and the current time (whether the early or late arrival time set according to this planned operation line is within the allowable early or late arrival time range of the set train number, that is, whether the train can successfully match the plan when using this train number). If the match is successful, the process proceeds to Step 4; if the match fails, it proceeds to Step 5.

[0054] Step 4: If the train match is successful, set the train number of the newly matched planned operation line for the corresponding train according to the matched plan. After the setting is completed, return to Step 2 to continue the polling operation.

[0055] Step 5: If the train match fails, change the train to the head - code train type (a head - code train refers to a train that has not matched any planned operation line), keep the destination unchanged as the original plan, and return to Step 2 to continue polling.

[0056] In an embodiment of the present invention, as Figure 4 shown, the operation line includes 7 planned lines, namely Plan 001, Plan 002, Plan 003, etc., for a total of 7 plans. There are three trains running on the line, namely Train 1001, Train 1002, and Train 1003. Among them, Train 1001 originally matches Plan 001, Train 1002 matches Plan 002, and Train 1003 matches Plan 003. The times of the relevant plans are shown in Table 1.

[0057] Table 1

[0058]

[0059]

[0060] In the case of on - time operation, at 8:04, Train 1001 is parked at Platform C, Train 1002 is parked at Platform B, and Train 1003 is parked at Platform A. At this time, a sudden operation accident occurs, causing all trains on the whole line to be temporarily parked at the platforms. It is not until 8:27 that the trains are allowed to resume operation. At this time, Train 1001 is parked at Platform C.

[0061] Since a long time has passed since the original planned operation time, Train 1001 is severely late. At the same time, Train 1002 and Train 1003 are also severely late because they are waiting behind, and the intervals between the three trains are uniform.

[0062] The dispatcher immediately issued an operating instruction for quickly resuming operation. The train automatic monitoring system adopted the method for automatically restoring normal operation of the train provided by the present invention, and after calculation and analysis, gave the current best benchmark solution: car 1001 matched the 006 plan, with a deviation of 1 minute early and an interval of 5 plans; car 1002 shifted 5 plans and matched the 001 plan one minute early; car 1003 shifted 5 plans and matched the 002 plan one minute early.

[0063] After the dispatcher confirmed the plan, the train automatic monitoring system automatically made adjustments. Car 1001 successfully matched the 006 plan, car 1002 automatically matched the 001 plan accordingly, and car 1003 automatically matched the 002 plan. At this point, all three trains can continue to operate on time according to the new plan, and the operation order of the entire line has returned to normal.

[0064] The present invention has the following beneficial effects:

[0065] 1. The benchmark-based rapid operation recovery adjustment method has carefully designed and optimized a rapid operation recovery solution after sudden operation failures for various operation scenarios of urban rail transit. It has wide versatility and users can flexibly choose it according to their actual needs to meet the requirements of different operation conditions.

[0066] 2. Compared with conventional operation recovery methods, it shows significant practical significance when dealing with complex scenarios such as large-scale delays. It can effectively ensure that the entire system maintains efficient operation, minimize the impact of sudden failures on operational order, and ensure passengers' travel experience.

[0067] 3. It can reduce the workload of dispatchers to a certain extent, so that they do not need to pay too much attention to certain routine recovery processes (existing recovery methods based on early and late points), so that they can devote more energy to the control of key links (paying attention to the actual operation of trains and observing the recovery of faults). This not only improves the efficiency of dispatching work, but also further enhances the availability of the entire system, providing stronger support for the stable operation of urban rail transit.

[0068] It should be noted that in the embodiments of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0069] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0071] It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. As used in the specification of this application and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0072] It should be further understood that the term "and / or" used in the specification of this application and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0073] As used in this specification and the appended claims, the term "if" may be construed, depending on the context, as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be construed, depending on the context, to mean "upon determining" or "in response to determining" or "upon detecting [described condition or event]" or "in response to detecting [described condition or event]".

[0074] Although the content of the present invention has been described in detail by the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A method for automatically restoring normal operation of a train, which is used to automatically restore normal operation of a train when a large area of ​​delay occurs in an operating line, wherein the operating line includes multiple planned operation lines, and the multiple planned operation lines are sorted according to the initial departure time, and each train is matched with a planned operation line, and the matched train is operated according to the matched planned operation line, characterized in that: The method for automatically restoring normal operation of a train comprises: The automatic train monitoring system determines the time for the entire line to resume operation, and the automatic train monitoring system designates a certain train as the current reference train; Acquire the planned running line closest to the reference train from all the planned running lines in the operating line, and use the closest planned running line as the current matching running line of the reference train; Calculate the sequence interval between the current matching running line and the planned running line originally matched by the reference train, and translate the current matching running lines of the remaining trains from the originally matched planned running lines to the new planned running lines according to the sequence interval, so that the current matching running lines of all trains form a re-matching list under the current reference train; According to the current position of each train and the time for the entire line to resume operation, the running deviation ΔT of each train and the current matching running line is calculated. i , the running deviations of all trains are accumulated to obtain the total running deviation under the current reference train i is a natural number; The remaining trains in the operating route are designated as the current reference trains in turn, the total running deviations of different trains as the current reference trains are calculated, and the rematch list corresponding to the minimum total running deviation is selected as the updated matching benchmark between the train and the planned operating line; The automatic train monitoring system enables all trains to operate according to the updated matching benchmark to match the new planned running line.

2. The method for automatically restoring normal operation of a train according to claim 1, characterized in that: The method for obtaining the planned operating line closest to the reference train includes: retrieving the departure times of all planned operating lines at the current position of the reference train, and identifying the planned operating line with the smallest time difference between the departure time and the time for resuming operation of the entire line as the closest planned operating line.

3. The method for automatically restoring normal operation of a train according to claim 1, characterized in that: The method for calculating the operation deviation includes: assuming that the time for the entire line to resume operation is t, and the departure time of the current matching operation line at the current position of the train is t i , then the running deviation ΔT i =ΔT i =│t i -t│.

4. The method for automatically restoring normal operation of a train as claimed in claim 1, characterized in that: Before executing the method for automatically restoring normal operation of trains, the automatic train monitoring system instructs all trains on the operating line to depart at equal intervals.

5. The method for automatically restoring normal operation of a train as claimed in claim 1, characterized in that: The train automatic monitoring system determines whether each train matches the new planned operating line successfully. If the running deviation between the train and the new planned operating line is greater than the deviation range allowed by the system, the match is considered unsuccessful. Otherwise, the match is considered successful. For the successfully matched trains, they will operate according to the new planned operating line.

6. The method for automatically restoring normal operation of a train as claimed in claim 5, characterized in that: The system allows a deviation of 30 minutes.

7. The method for automatically restoring normal train operation as claimed in claim 5, characterized in that: For trains that fail to match, they will continue to run to the terminal station according to the original destination.

8. The method for automatically restoring normal operation of a train as claimed in claim 1, characterized in that: When more than 70% of trains are delayed, it is considered that large-scale delays have occurred.

9. A train automatic monitoring system, characterized in that: The automatic train monitoring system is used to implement the method for automatically restoring normal train operation as described in any one of claims 1-8.

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