A group train station departure interval time determination method and system
Patent Information
- Application Number
- CN202410328612.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2044-03-21
AI Technical Summary
[0003]群组控制方式打破传统列车控制方式，一个群组内列车运行进路不同、运行速度变化不同，需要计算群组多个列车、甚至不同种类列车的出发间隔时间，因此传统的列车出发间隔确定方法已无法适用于群组控制下列车发车间隔时间的计算
[0019]本发明的群组列车车站发车间隔时间确定方法、系统，实现了一个群组内不同运行进路、不同运行速度变化的多种列车出发间隔时间的统一计算，验证了群组货物列车间的平均追踪间隔时间最小3min。可实现群组货物列车间的平均追踪间隔时间最小3min。对于开行5000t单元基本列的群组，重载列车群组运行控制系统的最大输送能力为42340万吨/年~59130万吨/年，比四显示信号系统（以5000t普通列车进行计算）的最大输送能力提高了100.00%~189.29%，比四显示信号系统（以10000t列车进行计算）的最大输送能力提高了22.27%~76.86%；对于开行10000t单元基本列的群组，重载列车群组运行控制系统的最大输送能力为65700万吨/年~78840万吨/年，比四显示信号系统（以10000t列车进行计算）的最大输送能力提高了96.51%~135.81%，比四显示信号系统（以20000t列车进行计算）的最大输送能力提高了33.93%~60.71%%，运输能力得到了极大的提升。
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Figure CN118082929B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of train control, and specifically relates to a method and system for determining the departure interval of group trains at stations. Background Technology
[0002] Traditional methods for determining train tracking intervals are based on the principle of single-train operation. The principle for calculating train departure intervals is the interval between two trains of the same type with the same route and the same speed variation.
[0003] Group control breaks with traditional train control methods. Trains within a group have different routes and speeds, requiring the calculation of departure intervals for multiple trains or even different types of trains in the group. Therefore, traditional methods for determining train departure intervals are no longer applicable to calculating departure intervals under group control.
[0004] This invention proposes a method and system for determining the departure interval time of multiple trains in a group at stations under the MB-VG control method, which integrates relative real-time speed, continuous spatial distance, and group adaptive adjustment. Summary of the Invention
[0005] To address the above problems, this invention proposes a method for determining the departure interval time of group trains at stations, the method comprising: When a group of trains departs, obtain the average time, reserved adjustment margin, station departure operation time, and train departure interval of the existing signaling system for the k-th train on the h-th track within the tracking operation space interval; The station departure interval of the group train is determined based on the average running time of the kth train on the hth track within the tracking space interval when the group train departs, the reserved adjustment margin, the station departure operation time, and the train departure interval of the existing signaling system.
[0006] Furthermore, obtaining the average travel time of the k-th train on track h within the tracking space interval when the group of trains departs includes: Obtain the distance from the stopping position of the kth train on track h to the key position when the group of trains departs, the length of the kth train on track h, and the average speed of the kth train on track h within the tracking space interval; The average travel time of the k-th train on track h within the tracking space interval is determined based on the distance from the stopping position of the k-th train on track h to the critical position when the group train departs, the length of the k-th train on track h, and the average speed of the k-th train on track h within the tracking space interval.
[0007] Furthermore, the departure of the group trains from the station includes departures on the same track and departures on different tracks alternately.
[0008] Furthermore, when the group of trains departs from the station on the same track, the key location is the end point of the short route protected by the exit signal.
[0009] Furthermore, when the group of trains departs from different tracks alternately, the key position is the starting point of the repeated route in the departure route of different tracks.
[0010] Furthermore, the departure interval between trains in the group is expressed as follows:
[0011] in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
[0012] The present invention also provides a system for determining the departure interval of group trains at stations, the system comprising an acquisition unit and a time determination unit. The acquisition unit is used to acquire the average time, reserved adjustment margin, station departure operation time, and train departure interval of the kth train on the hth track during the departure of the group of trains. The time determination unit, which is communicatively connected to the acquisition unit, is used to determine the station departure interval of the group train based on the average running time of the kth train on the hth track within the tracking running space interval when the group train departs, the reserved adjustment margin, the station departure operation time, and the train departure interval time of the existing signaling system.
[0013] Furthermore, the acquisition unit includes an acquisition module and a time determination module. The acquisition module is used to acquire the distance from the stopping position of the kth train on the hth track to the key position when the group train departs, the length of the kth train on the hth track, and the average speed of the kth train on the hth track within the tracking running space interval. The time determination module, which is connected in communication with the acquisition module, is used to determine the average time of the k-th train on the h-th track within the tracking space interval when the group train departs, based on the distance from the stopping position of the k-th train on the h-th track to the key position, the length of the k-th train on the h-th track, and the average speed of the k-th train on the h-th track within the tracking space interval.
[0014] Furthermore, the departure of the group trains from the station includes departures on the same track and departures on different tracks alternately.
[0015] Furthermore, when the group of trains departs from the station on the same track, the key location is the end point of the short route protected by the exit signal.
[0016] Furthermore, when the group of trains departs from different tracks alternately, the key position is the starting point of the repeated route in the departure route of different tracks.
[0017] Furthermore, the departure interval between trains in the group is expressed as follows:
[0018] in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
[0019] The method and system for determining the departure interval of group trains in this invention realizes the unified calculation of departure intervals for various trains with different operating routes and speed variations within a group, and verifies that the minimum average tracking interval between freight trains in a group is 3 minutes. It can achieve a minimum average tracking interval of 3 minutes between freight trains in a group. For train groups operating 5,000-ton basic unit trains, the maximum transport capacity of the heavy-haul train group operation control system is 423.4 million tons / year to 591.3 million tons / year, which is 100.00% to 189.29% higher than the maximum transport capacity of the four-signal system (calculated based on 5,000-ton ordinary trains) and 22.27% to 76.86% higher than the maximum transport capacity of the four-signal system (calculated based on 10,000-ton trains). For train groups operating 10,000-ton basic unit trains, the maximum transport capacity of the heavy-haul train group operation control system is 657 million tons / year to 788.4 million tons / year, which is 96.51% to 135.81% higher than the maximum transport capacity of the four-signal system (calculated based on 10,000-ton trains) and 33.93% to 60.71% higher than the maximum transport capacity of the four-signal system (calculated based on 20,000-ton trains), resulting in a significant improvement in transport capacity.
[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic flowchart of the method for determining the departure interval of group trains at stations according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the system structure for determining the departure interval of group trains at stations according to an embodiment of the present invention is shown; Figure 3 This invention illustrates a schematic diagram of calculating the departure interval time of train groups on the same track in an embodiment of the present invention. Figure 4 This invention illustrates a schematic diagram of calculating the train departure interval for different track group trains in an embodiment of the present invention. Figure 5 A schematic diagram illustrating the calculation of the tracking interval time for group trains in an embodiment of the present invention is shown. Figure 6 This invention illustrates a schematic diagram of the calculation of arrival interval time for train groups on the same track in an embodiment of the present invention. Figure 7 A schematic diagram illustrating the calculation of train arrival intervals for different track groups in an embodiment of the present invention is shown. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] This invention provides a method for determining the departure interval of group trains at stations. Figure 1 This diagram illustrates a method for determining the departure interval of group trains at stations according to an embodiment of the present invention. Figure 1 The method includes obtaining the average running time, reserved adjustment margin, station departure operation time, and train departure interval of the k-th train on the h-th track within the tracking operation space interval when the group train departs; and determining the station departure interval of the group train based on the obtained average running time, reserved adjustment margin, station departure operation time, and train departure interval of the k-th train on the h-th track within the tracking operation space interval when the group train departs.
[0025] Specifically, in this embodiment of the invention, obtaining the average travel time of the k-th train on the h-th track within the tracking space interval when the group of trains departs includes: Obtain the distance from the stopping position of the kth train on track h to the key position when the group of trains departs, the length of the kth train on track h, and the average speed of the kth train on track h within the tracking space interval; The average travel time of the k-th train on track h within the tracking space interval is determined based on the distance from the stopping position of the k-th train on track h to the critical position when the group train departs, the length of the k-th train on track h, and the average speed of the k-th train on track h within the tracking space interval.
[0026] Specifically, in this embodiment of the invention, the departure of the group trains from the station includes departures on the same track and departures on different tracks alternately.
[0027] When the group of trains departs from the station on the same track, the key location is the end point of the short route protected by the exit signal. Figure 3 This diagram illustrates the calculation of the departure interval time for train groups on the same track in an embodiment of the present invention. Figure 3 In this diagram, the train group consists of four trains: {T01, T02, T03, T04}. 5G, IIIG, IG, IIG, and 4G represent tracks, X5, XIII, XI, XII, X4, SF, S, S5, SIII, SI, SII, S4, 0011, and 0012 represent signals. The train group {T01, T02, T03, T04} is located on track 5G. In this embodiment of the invention, another train group departing from the same track is not shown in the diagram, which should be understood.
[0028] When trains depart from different tracks at the station in the group, the key position is the starting point of the repeated route in the departure route of different tracks. Figure 4 This diagram illustrates the calculation of train departure intervals for different track group trains in an embodiment of the present invention. Figure 4 The train group includes trains located on tracks 5G and 4G respectively. The train group on track 5G consists of four trains {T01, T02, T03, T04}, and the train group on track 4G consists of four trains {T05, T06, T07, T08}. A(k) is a key position A. When the k-th train and the (k+1)-th train in the group depart from different tracks, this position is the starting point of the repeated route in the departure route on different tracks.
[0029] In this embodiment of the invention, the departure interval of the group train at the station is expressed as follows:
[0030] in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
[0031] In this embodiment of the invention, the determination of the tracking interval time of the group train is also specifically explained. It should be noted that for a group of trains consisting of a single physical train, the tracking time of the group train is calculated in the same way as the tracking interval of the train. In this embodiment of the invention, the group train consisting of multiple physical trains is used for explanation.
[0032] I. Determining the Interval Time for Tracking Group Trains: The train group tracking interval is composed of the train departure interval, arrival interval, and section tracking interval, and the largest of these is taken. Specifically:
[0033] in, Indicates the tracking interval time for a group of trains, in min; Indicates the interval time for tracked trains in a group, in min; This indicates the station departure interval for a group of trains, in minutes. This indicates the station arrival interval for a train group, expressed in minutes.
[0034] II. Interval time for group train tracking The determination
[0035] In this embodiment of the invention, Figure 3 This diagram illustrates the calculation of the tracking interval time for group trains in an embodiment of the present invention. Figure 3 In the middle, the leading group train Q001{T01,T02,T03,T04} consists of four trains (in this embodiment of the invention, in order to clearly show the process of determining the interval of the group train section of the invention, the three trains T01,T02,T03 of the leading group train are not shown), and the following group train Q002{T01,T02,T03,T04} consists of four trains.
[0036] The interval time for tracking trains in the group section is expressed as follows:
[0037] in, This represents the interval time for group train tracking, where i represents the train number in the group during interval tracking, and j represents the total number of trains in the group during interval tracking. This represents the monitoring distance between the i-th train in a train group and the preceding train during section tracking. This represents the length of the i-th train in a train group during interval tracking. This represents the length of the (i-1)th train in a train group during section tracking. This represents the average speed of the i-th train in a train group during interval tracking. This represents the reserved adjustment margin for the tracking interval time of the i-th train in a train group during interval tracking. This indicates the train tracking interval time of the existing signaling system.
[0038] III. Departure Intervals for Group Trains
[0039] The determination of the departure interval time of group trains at stations in this embodiment of the invention has been explained above and will not be repeated here.
[0040] IV. Station arrival intervals for group trains
[0041] In this embodiment of the invention, the arrival methods of group trains at stations include two types: continuous arrival on the same track and alternating arrival on different tracks. Figure 6 This diagram illustrates the calculation of arrival interval time for train groups on the same track in an embodiment of the present invention. Figure 6 In the diagram, the train group consisting of {T01,T02} arrives at track IIIG, and the train group consisting of {T03,T04} arrives from the station entrance section at track IIIG where the train group {T01,T02} is parked. IIIG, IG, IIG, and 4G represent tracks, and XD, SIII, XIII, X, 0009, SI, XI, 0010, XF, SII, XII, S4, and X4 represent signals.
[0042] Figure 7 This invention illustrates a schematic diagram of calculating the arrival interval time of trains on different track groups in an embodiment of the present invention. Figure 7 In the middle, the group train consisting of {T01,T02,T03,T04} arrives on track IIIG, and the group train consisting of {T05,T06,T07,T08} arrives from the station entry section on track 4G, which is a different track from where the group trains {T01,T02,T03,T04} are parked.
[0043] Figures 6-7 middle, C(a) is a key position. When train a and train a+1 in a group meet on the same track, this position is the reverse exit signal for the current track. When train a and train a+1 in a group meet on different tracks, this position is the end point of the repeated route in the different track meeting route. C(a) is a key position. When train a and train a+1 in a group meet on the same track, this position is the reverse exit signal for the track. That is, when trains in the same track group arrive at intervals, both key positions B and C are the reverse exit signals for the current track. When train a and train a+1 in a group meet on different tracks, this position is the end point of the first key turnout after the end point of the repeated route in the different track meeting route.
[0044] In this embodiment of the invention, the arrival interval of the group trains Represented as:
[0045]
[0046] In the formula, This indicates the arrival interval of a group of trains, in min; a represents the train number in the group when the group of trains arrives; b represents the total number of trains in the group when the group of trains arrives. This represents the distance from key location B to key location C when the group of trains arrives. This represents the monitoring distance calculated by the onboard ATP of the (a+1)th train in the group, with the key location B as the target point, when the group trains arrive. This indicates the length of the (a+1)th train in the group when the group of trains arrives; This represents the average speed, in km / h, of the a-th train in the group during the tracking operation space interval when the group of trains arrives. This represents the station arrival time when a group of trains arrives. When train a and train a+1 in the group arrive on the same track, the value is 0; when train a and train a+1 in the group arrive on different tracks, the value is 0.5 min. This represents the allowance for adjusting the train tracking interval in the group when a group of trains arrives, in min; This indicates the train arrival interval in minutes for the existing signaling system.
[0047] This invention also provides a system for determining the departure interval of group trains at stations. Figure 2 This diagram illustrates the structure of a system for determining the departure interval of group trains at stations according to an embodiment of the present invention. Figure 2 The system includes an acquisition unit and a time determination unit. The acquisition unit is used to acquire the average running time, reserved adjustment margin, station departure operation time, and train departure interval of the kth train on the hth track within the tracking operation space interval when the group train departs; the time determination unit is communicatively connected to the acquisition unit and is used to determine the station departure interval of the group train based on the acquired average running time, reserved adjustment margin, station departure operation time, and train departure interval of the kth train on the hth track within the tracking operation space interval when the group train departs.
[0048] Specifically, the acquisition unit includes an acquisition module and a time determination module. The acquisition module is used to acquire the distance from the stopping position of the kth train on the hth track to the key position when the group train departs, the length of the kth train on the hth track, and the average speed of the kth train on the hth track within the tracking running space interval. The time determination module, which is connected in communication with the acquisition module, is used to determine the average time of the k-th train on the h-th track within the tracking space interval when the group train departs, based on the distance from the stopping position of the k-th train on the h-th track to the key position, the length of the k-th train on the h-th track, and the average speed of the k-th train on the h-th track within the tracking space interval.
[0049] Specifically, the departure of the group of trains from the station includes departures on the same track and departures on different tracks alternately.
[0050] Specifically, when the group of trains departs from the station on the same track, the key position is the end point of the short route protected by the exit signal.
[0051] Specifically, when the group of trains departs from different tracks alternately, the key position is the starting point of the repeated route in the departure routes of different tracks.
[0052] Specifically, the departure interval of the group of trains at the station is expressed as follows:
[0053] in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
[0054] This invention also provides an electronic device, which includes at least one processor and at least one memory, wherein the memory is data-connected to the processor. The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the method for determining the departure interval of group trains at stations as described in this embodiment of the invention.
[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A method for determining the departure interval of a group of trains at a station, characterized in that, The method includes: When a group of trains departs, obtain the average time, reserved adjustment margin, station departure operation time, and train departure interval of the existing signaling system for the k-th train on the h-th track within the tracking operation space interval; The station departure interval of the group train is determined based on the average time of the k-th train on track h during the departure of the group train, the reserved adjustment margin, the station departure operation time, and the train departure interval of the existing signaling system. The average travel time of the k-th train on track h within the tracking space interval when the group of trains departs includes: Obtain the distance from the stopping position of the kth train on track h to the key position when the group of trains departs, the length of the kth train on track h, and the average speed of the kth train on track h within the tracking space interval; The average travel time of the k-th train on track h within the tracking space interval is determined based on the distance from the stopping position of the k-th train on track h to the critical position when the group train departs, the length of the k-th train on track h, and the average speed of the k-th train on track h within the tracking space interval. The departure interval between the group of trains at the station is expressed as follows: in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
2. The method for determining the departure interval of group trains at stations according to claim 1, characterized in that, The departures of the group of trains from the station include departures on the same track and departures on different tracks alternately.
3. The method for determining the departure interval of group trains at stations according to claim 2, characterized in that, When the group of trains departs from the station on the same track, the key location is the end point of the short route protected by the exit signal.
4. The method for determining the departure interval of group trains at stations according to claim 2, characterized in that, When trains depart from different tracks at the station in the group, the key position is the starting point of the repeated route in the departure route of different tracks.
5. A system for determining the departure interval of group trains at stations, characterized in that, The system includes an acquisition unit and a time determination unit. The acquisition unit is used to acquire the average time, reserved adjustment margin, station departure operation time, and train departure interval of the kth train on the hth track during the departure of the group of trains. The time determination unit is communicatively connected to the acquisition unit and is used to determine the station departure interval of the group train based on the average running time of the kth train on the hth track within the tracking running space interval when the group train departs, the reserved adjustment margin, the station departure operation time, and the train departure interval of the existing signal system. The acquisition unit includes an acquisition module and a time determination module. The acquisition module is used to acquire the distance from the stopping position of the kth train on the hth track to the key position when the group train departs, the length of the kth train on the hth track, and the average speed of the kth train on the hth track within the tracking running space interval. The time determination module, which is connected in communication with the acquisition module, is used to determine the average time of the k-th train on the h-th track within the tracking space interval when the group train departs, based on the distance from the stopping position of the k-th train on the h-th track to the key position, the length of the k-th train on the h-th track, and the average speed of the k-th train on the h-th track within the tracking space interval. The departure interval between the group of trains at the station is expressed as follows: in, The interval between train departures from the station is min; h represents the track number occupied by the train when it departs; m represents the total number of tracks occupied by the train when it departs; k represents the number of trains in the current track when the train departs. This indicates the length of the k-th train on track h when a group of trains departs; This represents the distance from the stopping position of the k-th train on track h to the critical position A when the group of trains departs; This represents the average speed, in km / h, of the k-th train on track h during the track-following spatial interval when the group of trains departs. This indicates the total number of group trains on track h when the group trains depart. Indicates the station's departure operation time when a group of trains departs; This represents the allowance for adjusting the train tracking interval time within a train group when the group of trains departs, in min; This indicates the train departure interval of the existing signaling system, in minutes.
6. The system for determining the departure interval of group trains at stations according to claim 5, characterized in that, The departures of the group of trains from the station include departures on the same track and departures on different tracks alternately.
7. The system for determining the departure interval of group trains at stations according to claim 6, characterized in that, When the group of trains departs from the station on the same track, the key location is the end point of the short route protected by the exit signal.
8. The system for determining the departure interval of group trains at stations according to claim 6, characterized in that, When trains depart from different tracks at the station in the group, the key position is the starting point of the repeated route in the departure route of different tracks.