Group train headway determining method and system

Abstract

The present invention provides a group train headway determining method and system. The method comprises: obtaining a group train in-section headway, a group train station departure interval, and a group train station arrival interval; and determining a group train headway on the basis of the maximum one of the group train in-section headway, the group train station departure interval, and the group train station arrival interval. The average headway between group cargo trains can be minimized to 3 min, and the maximum transport capacities of heavy-load train group operation control systems are improved.

Description

A method and system for determining group train tracking interval time Technical Field

[0001] The present invention belongs to the field of train control, and in particular relates to a method and system for determining a group train tracking interval time. Background Art

[0002] Based on the background technology of train group control system and train group control mode, the present invention realizes a significant increase in traffic density, obtains maximum transportation capacity and improves traffic density by only changing the train control system without increasing axle weight or train length.

[0003] Traditional methods for determining train tracking intervals are based on the principle of single-train operation and are no longer applicable to calculating train tracking intervals under group control. This invention proposes a method and system for determining group train tracking intervals under the MB-VG control method, which integrates relative real-time speed, continuous spatial distance, and group adaptive adjustment.

[0004] Summary of the Invention

[0005] In view of the above problems, the present invention proposes a method for determining a group train tracking interval time, the method comprising:

[0006] Get the interval time for group train section tracking, the interval time for group train station departure and the interval time for group train station arrival;

[0007] The group train tracking interval is determined according to the maximum value of the group train section tracking interval, the group train station departure interval and the group train station arrival interval.

[0008] Furthermore, the group train interval tracking interval is determined based on the average time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the i-th train tracking interval in the group train during interval tracking, and the train interval tracking interval of the existing signal system.

[0009] Furthermore, the station departure interval of the group train is determined based on the average time of the kth train on the hth track running within the tracking operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

[0010] Furthermore, the station arrival interval time of the group trains is determined based on the average running time of the train tracking operation space interval in the group, the station arrival operation time, the reserved adjustment margin of the train tracking interval time in the group when the group train arrives, and the train arrival interval time of the existing signal system.

[0011] Furthermore, obtaining the average running time of the kth train on the hth track within the tracking running space interval when the group train departs includes:

[0012] Obtain the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval when the group train departs;

[0013] The average running time of the kth train on the hth track within the tracking operation space interval when the group train departs is determined based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

[0014] Furthermore, the group train station departure includes departure from the same track and departure from different tracks in alternation;

[0015] When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach;

[0016] When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

[0017] Furthermore, obtaining the average running time of the train tracking operation space interval in the group includes:

[0018] Obtain the distance from the second key position to the third key position, the average speed of the ath train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1th train in the group with the third key position as the target point when the group train arrives, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group within the tracking operation space interval;

[0019] The average time for trains in the group to run within the tracking operation space interval is determined based on the distance from the second key position to the third key position, the average speed of the ath train in the group running within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1th train in the group when the group train arrives with the third key position as the target point, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group running within the tracking operation space interval.

[0020] Furthermore, the group trains' arrival at the station includes continuous arrival on the same track and alternating arrival on different tracks;

[0021] When the same track arrives continuously, the second key position and the third key position are both track reverse exit signals;

[0022] When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

[0023] The embodiment of the present invention further provides a group train tracking interval time determination system, the system comprising an acquisition module and a time determination module,

[0024] An acquisition module is used to obtain the interval tracking time of group trains, the interval departure time of group trains at stations and the interval arrival time of group trains at stations;

[0025] The time determination module is in communication with the acquisition module and is used to determine the group train tracking interval time according to the maximum value of the group train section tracking interval time, the group train station departure interval time and the group train station arrival interval time.

[0026] Furthermore, the acquisition module is used to determine the group train interval tracking interval time based on the average running time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the i-th train tracking interval time in the group train during interval tracking, and the train interval tracking interval time of the existing signal system.

[0027] Furthermore, the acquisition module is used to determine the station departure interval time of the group train based on the average time of the kth train on the hth track running in the tracking operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

[0028] Furthermore, the acquisition module is used to determine the station arrival interval time of the group trains based on the average time of the train tracking operation space interval in the group, the station arrival operation time, the reserved adjustment margin of the train tracking interval time in the group when the group train arrives, and the train arrival interval time of the existing signal system.

[0029] Furthermore, the acquisition module includes an acquisition unit and a time determination unit.

[0030] an acquisition unit, configured to acquire the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval when the group train departs;

[0031] A time determination unit is communicatively connected to the acquisition unit and is used to determine the average time that the kth train on the hth track runs within the tracking operation space interval when the group train departs based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

[0032] Furthermore, the group train station departure includes departure from the same track and departure from different tracks in alternation;

[0033] When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach;

[0034] When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

[0035] Furthermore, the acquisition unit is further configured to acquire the distance from the second key position to the third key position, the average speed of the a-th train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1-th train in the group with the third key position as the target point when the group train arrives, the length of the a+1-th train in the group when the group train arrives, and the average speed of the a+1-th train in the group within the tracking operation space interval;

[0036] The time determination unit is also used to determine the average time for the trains in the group to run within the tracking operation space interval based on the distance from the second key position to the third key position, the average speed of the a-th train in the group to run within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1-th train in the group when the group train arrives with the third key position as the target point, the length of the a+1-th train in the group when the group train arrives, and the average speed of the a+1-th train in the group to run within the tracking operation space interval.

[0037] Furthermore, the group trains' arrival at the station includes continuous arrival on the same track and alternating arrival on different tracks;

[0038] When the same track arrives continuously, the second key position and the third key position are both track reverse exit signals;

[0039] When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

[0040] The method and system for determining the group train tracking interval time of the present invention can achieve an average tracking interval time of at least 3 minutes between group freight trains. For groups operating 5,000t unit basic trains, the maximum transportation capacity of the heavy-load 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 transportation capacity of the four-display signal system (calculated based on 5,000t ordinary trains) and 22.27% to 76.86% higher than the maximum transportation capacity of the four-display signal system (calculated based on 10,000t trains); for groups operating 10,000t unit basic trains, the maximum transportation capacity of the heavy-load 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 transportation capacity of the four-display signal system (calculated based on 10,000t trains) and 33.93% to 60.71% higher than the maximum transportation capacity of the four-display signal system (calculated based on 20,000t trains). The transportation capacity has been greatly improved.

[0041] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] FIG1 is a schematic flow chart showing a method for determining a group train tracking interval in an embodiment of the present invention;

[0044] FIG2 shows a schematic structural diagram of a system for determining group train tracking interval time in an embodiment of the present invention;

[0045] FIG3 shows a schematic diagram of calculating the interval tracking time of a group train in an embodiment of the present invention;

[0046] FIG4 shows a schematic diagram of calculating the departure interval time of a group of trains on the same track according to an embodiment of the present invention;

[0047] FIG5 shows a schematic diagram of calculating the departure interval time of train groups in different track groups according to an embodiment of the present invention;

[0048] FIG6 shows a schematic diagram of calculating the arrival interval time of a group of trains on the same track according to an embodiment of the present invention;

[0049] FIG7 shows a schematic diagram of calculating the arrival interval time of trains in different track groups according to an embodiment of the present invention. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0051] The present invention provides a method for determining a group train tracking interval. FIG1 shows a flow chart of the method for determining a group train tracking interval in an embodiment of the present invention. In FIG1 , the method includes:

[0052] Get the interval time for group train section tracking, the interval time for group train station departure and the interval time for group train station arrival;

[0053] The group train tracking interval is determined according to the maximum value of the group train section tracking interval, the group train station departure interval and the group train station arrival interval.

[0054] Specifically, the group train interval tracking interval is determined based on the average running time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the i-th train tracking interval in the group train during interval tracking, and the train interval tracking interval of the existing signal system.

[0055] Specifically, the group train station departure interval is determined based on the average time of the kth train on the hth track running within the tracking operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

[0056] Specifically, the station arrival interval time of the group trains is determined based on the average running time of the train tracking operation space interval in the group, the station arrival operation time, the reserved adjustment margin of the train tracking interval time in the group when the group train arrives, and the train arrival interval time of the existing signal system.

[0057] Specifically, obtaining the average running time of the kth train on the hth track within the tracking running space interval when the group train departs includes:

[0058] Obtain the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval when the group train departs;

[0059] The average running time of the kth train on the hth track within the tracking operation space interval when the group train departs is determined based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

[0060] Specifically, the group train station departure includes departure from the same track and departure from different tracks in alternation;

[0061] When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach;

[0062] When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

[0063] Specifically, obtaining the average running time of the train tracking operation space interval in the group includes:

[0064] Obtain the distance from the second key position to the third key position, the average speed of the ath train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1th train in the group with the third key position as the target point when the group train arrives, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group within the tracking operation space interval;

[0065] The average time for trains in the group to run within the tracking operation space interval is determined based on the distance from the second key position to the third key position, the average speed of the ath train in the group running within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1th train in the group when the group train arrives with the third key position as the target point, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group running within the tracking operation space interval.

[0066] Specifically, the group trains' arrival at the station includes continuous arrival on the same track and alternating arrival on different tracks;

[0067] When the same track arrives continuously, the second key position and the third key position are both track reverse exit signals;

[0068] When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

[0069] In the embodiment of the present invention, the determination of the group train tracking interval time is specifically described. It should be noted that, for a train group composed of one physical train, its group train tracking time is consistent with the train tracking train interval calculation method. In the embodiment of the present invention, the group train of a train group composed of multiple physical trains is used for explanation.

[0070] 1. Determination of group train tracking interval:

[0071] The group train tracking interval is composed of the group train departure interval, arrival interval and section tracking interval, and the largest of them is taken, specifically:

[0072] Among them, I 群 Indicates the tracking interval time of the group train, min; Indicates the interval tracking time of the group train, min; Indicates the departure interval time of group trains at the station, min; Indicates the station arrival interval of the group train, min.

[0073] 2. Group train interval tracking interval Determination

[0074] In an embodiment of the present invention, Figure 3 shows a schematic diagram of the calculation of the group train interval tracking interval time in an embodiment of the present invention. In Figure 3, the leading group train Q001 {T01, T02, T03, T04} is composed of four trains (in the embodiment of the present invention, in order to clearly show the determination process of the group train interval tracking interval of the present invention, the three trains T01, T02, and T03 of the leading group train are not drawn), and the trailing group train Q002 {T01, T02, T03, T04} is composed of four trains.

[0075] The group train interval tracking interval is expressed as:

[0076] in, represents the interval tracking time of the group train, i represents the train number in the group train during interval tracking, j represents the total number of trains in the group train during interval tracking, L 监控 (i) represents the monitoring distance between the i-th train and the preceding train in the group during interval tracking, L 列(i) represents the length of the i-th train in the group during interval tracking, L 列 (i-11)) represents the length of the i-1th train in the group train during interval tracking, v 平均 (i) represents the average speed of the i-th train in the group of trains in the tracking operation space interval during interval tracking, t 余 (i) represents the reserved adjustment margin for the tracking interval of the i-th train in the group train during section tracking, I 区 Indicates the train tracking interval time of the existing signal system.

[0077] 3. Group train station departure interval

[0078] In an embodiment of the present invention, there are two ways for group trains to depart from a station: departure on the same track and departure on different tracks alternately. Figure 4 shows a schematic diagram of calculating the departure interval time of group trains on the same track in an embodiment of the present invention. In Figure 4, the group train consists of four train sets {T01, T02, T03, T04}, 5G, IIIG, IG, IIG, 4G represent tracks, X5, XIII, XI, XII, X4, SF, S, S5, SIII, SI, SII, S4, 0011, 0012 represent signals, and the group train is located on track 5G; Figure 5 shows a schematic diagram of calculating the departure interval time of group trains on different tracks in an embodiment of the present invention. In Figure 5, including group trains located on track 5G and track 4G respectively, the group train on track 5G consists of four train sets {T01, T02, T03, T04}, and the group train on track 4G consists of four train sets {T05, T06, T07, T08}.

[0079] In Figures 4 and 5, A(k) is the key position A. When the k-th train and the k+1-th train in the group depart from the same track, this position is the end point of the short route protected by the exit signal; 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 routes of different tracks.

[0080] In the embodiment of the present invention, the departure interval of a group train station is expressed as:

[0081] in, Indicates the departure interval of the group train station, min; h indicates the track number occupied by the group train when it departs; m indicates the total number of tracks occupied by the group train when it departs; k indicates the number of group trains in the current track when the group train departs; L 列 (h, k) represents the length of the kth train on the hth track when the group train departs; L A(h, k) represents the distance from the parking position of the kth train on the hth track to the key position A when the group train departs; v 平均 (h, k) represents the average speed of the kth train on the hth track within the tracking operation space interval when the group train departs, in km / h; n(h, k) represents the total number of group trains on the hth track when the group train departs; Indicates the station departure operation time when the group train departs; t 余 Indicates the reserved adjustment margin of the train tracking interval in the group train when the group train departs, min; I 发 Indicates the train departure interval time of the existing signal system, min.

[0082] 4. Interval time between group train arrivals at stations

[0083] In an embodiment of the present invention, there are two ways for group trains to arrive at a station: continuous arrival on the same track and alternating arrival on different tracks. Figure 6 shows a schematic diagram of the calculation of the arrival interval time of group trains on the same track in an embodiment of the present invention. In Figure 6, the group train composed of {T01, T02} arrives on track IIIG, and the group train composed of {T03, T04} arrives from the entrance section to track IIIG where the group train {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.

[0084] Figure 7 shows a schematic diagram of the calculation of the arrival interval time of group trains on different tracks in an embodiment of the present invention. In Figure 7, the group train composed of {T01, T02, T03, T04} arrives on track IIIG, and the group train composed of {T05, T06, T07, T08} arrives from the station entry section on track 4G, which is a different track from the parking position of the group train {T01, T02, T03, T04}.

[0085] In Figures 6 and 7, B(a) represents key position B. When train a and train a+1 in a group meet on the same track, this position serves as the reverse exit signal for the current track. When train a and train a+1 meet on different tracks, this position serves as the endpoint of the repeated route within the different track routes. C(a) represents key position C. When train a and train a+1 meet on the same track, this position serves as the reverse exit signal for the current track. That is, when trains in the same track arrive at intervals, key positions B and C serve as the reverse exit signal for the current track. When train a and train a+1 meet on different tracks, this position serves as the endpoint of the first key switch following the endpoint of the repeated route within the different track routes.

[0086] In the embodiment of the present invention, the arrival interval of the group trains is Expressed as:

[0087] Where, Indicates the arrival interval of the group train, min; a indicates the train number in the group when the group train arrives; b indicates the total number of trains in the group when the group train arrives; L B_C (a+1) represents the distance from key position B to key position C when the group train arrives; L B (a+1) represents the monitoring distance calculated by the onboard ATP of the a+1th train in the group with the key position B as the target point when the group train arrives; L 列 (a+1) represents the length of the a+1th train in the group when the group train arrives; v 平均 (a) represents the average speed of the ath train in the group within the tracking operation space interval when the group train arrives, km / h; Indicates the station arrival operation time when the group train arrives. When the ath train and the a+1th train in the group arrive on the same track, the value is 0; when the ath train and the a+1th train in the group arrive on different tracks, the value is 0.5min; t 余 (a+1) represents the reserved adjustment margin of the train tracking interval in the group when the group train arrives, min; I 到 Indicates the train arrival interval time of the existing signal system, min.

[0088] The present invention also provides a group train tracking interval time determination system. FIG2 shows a schematic structural diagram of the group train tracking interval time determination system in the present invention. In FIG2 , the system includes an acquisition module and a time determination module.

[0089] An acquisition module is used to obtain the interval tracking time of group trains, the interval departure time of group trains at stations and the interval arrival time of group trains at stations;

[0090] The time determination module is in communication with the acquisition module and is used to determine the group train tracking interval time according to the maximum value of the group train section tracking interval time, the group train station departure interval time and the group train station arrival interval time.

[0091] Specifically, the acquisition module is used to determine the group train interval tracking interval time based on the average running time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the i-th train tracking interval time in the group train during interval tracking, and the train interval tracking interval time of the existing signal system.

[0092] Specifically, the acquisition module is used to determine the station departure interval time of the group train based on the average time of the kth train on the hth track running in the tracking operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

[0093] Specifically, the acquisition module is used to determine the station arrival interval time of the group trains based on the average running time of the train tracking operation space interval in the group, the station arrival operation time, the reserved adjustment margin of the train tracking interval time in the group when the group train arrives, and the train arrival interval time of the existing signal system.

[0094] Specifically, the acquisition module includes an acquisition unit and a time determination unit.

[0095] an acquisition unit, configured to acquire the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval when the group train departs;

[0096] A time determination unit is communicatively connected to the acquisition unit and is used to determine the average time that the kth train on the hth track runs within the tracking operation space interval when the group train departs based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

[0097] Specifically, the group train station departure includes departure from the same track and departure from different tracks in alternation;

[0098] When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach;

[0099] When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

[0100] Specifically, the acquisition unit is further configured to acquire the distance from the second key position to the third key position, the average speed of the a-th train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1-th train in the group with the third key position as the target point when the group train arrives, the length of the a+1-th train in the group when the group train arrives, and the average speed of the a+1-th train in the group within the tracking operation space interval;

[0101] The time determination unit is also used to determine the average time for the trains in the group to run within the tracking operation space interval based on the distance from the second key position to the third key position, the average speed of the a-th train in the group to run within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1-th train in the group when the group train arrives with the third key position as the target point, the length of the a+1-th train in the group when the group train arrives, and the average speed of the a+1-th train in the group to run within the tracking operation space interval.

[0102] Specifically, the group trains' arrival at the station includes continuous arrival on the same track and alternating arrival on different tracks;

[0103] When the same track arrives continuously, the second key position and the third key position are both track reverse exit signals;

[0104] When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

[0105] The method and system for determining the group train tracking interval time of the present invention can achieve an average tracking interval time of at least 3 minutes between group freight trains. For groups operating 5,000-ton unit basic trains, the maximum transportation capacity of the heavy-load 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 transportation capacity of the four-display signal system (calculated based on 5,000-ton ordinary trains) and 22.27% to 76.86% higher than the maximum transportation capacity of the four-display signal system (calculated based on 10,000-ton trains); for groups operating 10,000-ton unit basic trains, the maximum transportation capacity of the heavy-load 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 transportation capacity of the four-display signal system (calculated based on 10,000-ton trains) and 33.93% to 60.71% higher than the maximum transportation capacity of the four-display signal system (calculated based on 20,000-ton trains). The transportation capacity has been greatly improved.

[0106] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements 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 a group train tracking interval, characterized in that: The method comprises: Get the interval time for group train section tracking, the interval time for group train station departure and the interval time for group train station arrival; The group train tracking interval is determined according to the maximum value of the group train section tracking interval, the group train station departure interval and the group train station arrival interval.

2. The method for determining the group train tracking interval time according to claim 1, characterized in that: The interval tracking interval of the group trains is determined based on the average running time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the tracking interval time of the i-th train in the group train during interval tracking, and the train interval tracking interval time of the existing signal system.

3. The method for determining the group train tracking interval time according to claim 1 or 2, characterized in that: The station departure interval of group trains is determined based on the average running time of the kth train on the hth track within the tracking operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

4. The method for determining the group train tracking interval time according to claim 1 or 2, characterized in that: The station arrival interval of the group trains is determined based on the average running time within the group's tracking operation space interval, the station arrival operation time, the reserved adjustment margin of the group's train tracking interval time when the group train arrives, and the train arrival interval time of the existing signal system.

5. The method for determining the group train tracking interval time according to claim 3, characterized in that: Obtaining the average running time of the kth train on the hth track within the tracking running space interval when the group train departs includes: Obtain the distance from the parking position of the kth train on the hth track to the first key position, the length of the kth train on the hth track, and the tracking running space of the kth train on the hth track when the group train departs. The average speed during the interval; The average running time of the kth train on the hth track within the tracking operation space interval when the group train departs is determined based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

6. The method for determining the group train tracking interval time according to claim 5, characterized in that: The group train station departure includes departure from the same track and departure from different tracks in alternation; When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach; When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

7. The method for determining the group train tracking interval time according to claim 4, characterized in that: Obtaining the average running time of the train tracking operation space interval in the group includes: Obtain the distance from the second key position to the third key position, the average speed of the ath train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1th train in the group with the third key position as the target point when the group train arrives, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group within the tracking operation space interval; The average time for trains in the group to run within the tracking operation space interval is determined based on the distance from the second key position to the third key position, the average speed of the ath train in the group running within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1th train in the group when the group train arrives with the third key position as the target point, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group running within the tracking operation space interval.

8. The method for determining the group train tracking interval time according to claim 7, characterized in that: The arrival of the group trains at the station includes continuous arrival on the same track and alternating arrival on different tracks; When the same track arrives continuously, the second key position and the third key position are both Track reverse departure signal; When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

9. A system for determining group train tracking interval time, characterized in that: The system includes an acquisition module and a time determination module, An acquisition module is used to obtain the interval tracking time of group trains, the interval departure time of group trains at stations and the interval arrival time of group trains at stations; The time determination module is in communication with the acquisition module and is used to determine the group train tracking interval time according to the maximum value of the group train section tracking interval time, the group train station departure interval time and the group train station arrival interval time.

10. The group train tracking interval determination system according to claim 9, characterized in that: The acquisition module is used to determine the group train interval tracking interval time based on the average running time of the i-th train in the group train tracking operation space interval, the reserved adjustment margin of the i-th train tracking interval time in the group train during interval tracking, and the train interval tracking interval time of the existing signal system.

11. The group train tracking interval determination system according to claim 9 or 10, characterized in that: The acquisition module 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 operation space interval when the group train departs, the reserved adjustment margin of the train tracking interval time in the group train when the group train departs, the station departure operation time and the train departure interval time of the existing signal system.

12. The group train tracking interval determination system according to claim 9 or 10, characterized in that: The acquisition module is used to adjust the reserved time of the train tracking interval in the group according to the average time of the train tracking operation space interval in the group, the station arrival operation time, and the group train arrival time. The margin and the train arrival interval of the existing signal system determine the group train station arrival interval.

13. The group train tracking interval determination system according to claim 11, characterized in that: The acquisition module includes an acquisition unit and a time determination unit. an acquisition unit, configured to acquire the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval when the group train departs; A time determination unit is communicatively connected to the acquisition unit and is used to determine the average time that the kth train on the hth track runs within the tracking operation space interval when the group train departs based on the distance from the parking position of the kth train on the hth track to the first key position, 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 operation space interval.

14. The group train tracking interval determination system according to claim 13, characterized in that: The group train station departure includes departure from the same track and departure from different tracks in alternation; When the group trains depart from the station on the same track, the first key position is the end point of the outbound signal protection short approach; When the group train station departs from different tracks alternately, the first key position is the starting point of the repeated route in the departure routes of different tracks.

15. The group train tracking interval determination system according to claim 12, characterized in that: The acquisition unit is further configured to acquire the distance from the second key position to the third key position, the average speed of the a-th train in the group within the tracking operation space interval, the monitoring distance calculated by the onboard ATP of the a+1-th train in the group with the third key position as the target point when the group train arrives, the length of the a+1-th train in the group when the group train arrives, and the average speed of the a+1-th train in the group within the tracking operation space interval; The time determination unit is further configured to determine the time interval according to the distance from the second key position to the third key position, the group The average time for trains in a group to run within the tracking operation space interval is determined by the average speed of the ath train in the group running within the tracking operation space interval, the monitoring distance calculated by the on-board ATP of the a+1th train in the group when the group train arrives with the third key position as the target point, the length of the a+1th train in the group when the group train arrives, and the average speed of the a+1th train in the group running within the tracking operation space interval.

16. The group train tracking interval determination system according to claim 15, characterized in that: The arrival of the group trains at the station includes continuous arrival on the same track and alternating arrival on different tracks; When the same track arrives continuously, the second key position and the third key position are both track reverse exit signals; When the different tracks arrive alternately, the second key position is the end point of the repeated route in the different track train receiving route; the third key position is the end point of the first key switch after the end point of the repeated route in the different track train receiving route.

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