Method and device for determining brake performance margin value of train automatic driving

Abstract

The application discloses a method and device for determining a train automatic driving braking performance margin value. The method comprises the following steps: determining a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to a driving log set corresponding to each preset automatic driving braking performance margin value; performing weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value; and selecting a target automatic driving braking performance margin value corresponding to a target main line track and a target turnback track from the multiple preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of city regional railway, and in particular to a method and device for determining a train automatic driving braking performance margin value. BACKGROUND

[0002] With the rapid development of urban rail transit systems, city regional railway, as a rail transit system connecting city centers and surrounding areas, gradually becomes an important traffic mode for relieving urban traffic pressure and improving urban comprehensive transport efficiency. In order to improve transport efficiency, city regional railway introduces automatic driving technology, and an automatic driving system realizes automatic driving operation of city regional railway trains and automatic adjustment function in the process of city regional railway train operation, so as to ensure that city regional railway trains reach the design interval and operating speed required for operation.

[0003] Automatic driving braking margin refers to the braking margin reserved by the maximum normal braking force output by city regional railway trains in the process of automatic driving mode operation compared with the rated maximum normal braking force. The greater the automatic driving braking margin value, the smaller the absolute value of the normal braking deceleration output by the automatic driving mode in the braking condition, and the more gentle the braking of city regional railway trains. However, the greater the automatic driving braking margin value, the longer the normal braking distance, so that the train tracking time interval and train operation time are also longer. On the contrary, the smaller the automatic driving braking margin value, the greater the absolute value of the normal braking deceleration output by the automatic driving mode in the braking condition, and the shorter the normal braking distance, so that the train tracking time interval and train operation time are also shorter. However, the smaller the automatic driving braking margin value, the more abrupt the braking of city regional railway trains, and passengers of city regional railway trains are more likely to have safety problems. Therefore, in order to balance the safety of passengers, the train tracking time interval and the train operation time of city regional railway trains, it is necessary to determine an optimal automatic driving braking margin value.

[0004] At present, the automatic driving braking margin value of city regional railway trains is usually determined manually by staff. However, the staff manually determines the automatic driving braking margin value of city regional railway trains, which completely depends on the work experience of the staff. When the staff lacks work experience, the staff cannot accurately determine the automatic driving braking margin value of city regional railway trains. SUMMARY

[0005] The embodiments of the present application provide a method and device for determining a train automatic driving braking performance margin value, and the main purpose is to accurately determine the automatic driving braking margin value of city regional railway trains.

[0006] To solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, the application provides a method for determining a train automatic driving braking performance margin value, the method comprising:

[0008] obtaining a set of driving logs corresponding to each preset automatic driving braking performance margin value, wherein for any one preset automatic driving braking performance margin value, the set of driving logs corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process of the first test suburban railway train and the second test suburban railway train on a target main line track and a target turnaround track included in a target suburban railway line based on an automatic driving configuration parameter after the automatic driving configuration parameter is formulated based on the preset automatic driving braking performance margin value;

[0009] determining a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the set of driving logs corresponding to each preset automatic driving braking performance margin value;

[0010] determining a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value;

[0011] for any one preset automatic driving braking performance margin value, performing a weighted sum calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value;

[0012] selecting a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0013] In a second aspect, the application further provides a device for determining a train automatic driving braking performance margin value, the device comprising:

[0014] The acquisition unit is configured to acquire a driving log set corresponding to each preset automatic driving braking performance margin value, wherein for any preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process of the first test suburban railway train and the second test suburban railway train on a target main line track and a target turnaround track included in a target suburban railway line based on an automatic driving configuration parameter after the automatic driving configuration parameter is formulated based on the preset automatic driving braking performance margin value.

[0015] The first determination unit is configured to determine a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value.

[0016] The second determination unit is configured to determine a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value.

[0017] The calculation unit is configured to, for any preset automatic driving braking performance margin value, perform weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value.

[0018] The selection unit is configured to select a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0019] In a third aspect, an embodiment of the present application provides a storage medium, which includes a stored program, wherein the storage medium controls a device where the storage medium is located to perform the train automatic driving braking performance margin value determination method in the first aspect when the program runs.

[0020] In a fourth aspect, an embodiment of the present application provides a train automatic driving braking performance margin value determination device, which includes a storage medium and one or more processors. The storage medium is coupled with the processor, and the processor is configured to execute program instructions stored in the storage medium. The program instructions perform the train automatic driving braking performance margin value determination method in the first aspect when running.

[0021] By means of the technical solutions, the application has at least the following advantages:

[0022] The application provides a method and device for determining a train automatic driving braking performance margin value. After a target application program obtains a driving log set corresponding to each preset automatic driving braking performance margin value, the target application program determines a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value, and determines a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value. For any one preset automatic driving braking performance margin value, the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value are weighted and summed to obtain a weighted score corresponding to the preset automatic driving braking performance margin value. After the weighted score corresponding to each preset automatic driving braking performance margin value is obtained, a target automatic driving braking performance margin value corresponding to a target main line track and a target turnaround track is selected from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value. Therefore, in the application, when a staff member needs to determine an optimal automatic driving braking margin value corresponding to an automatic driving system of a city railway train running in an automatic driving mode on a target main line track and a target turnaround track included in a target city railway line, the staff member does not need to participate again after collecting the driving log set corresponding to each preset automatic driving braking performance margin value. The target application program can automatically determine the target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track according to a preset rule, and no longer depends on the work experience of the staff member, thereby accurately determining the automatic driving braking margin value of the city railway train.

[0023] The above description is only a summary of the technical solutions of the application. In order to more clearly understand the technical means of the application, the application can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings, in which several embodiments of the present application are shown. In the drawings, identical or corresponding symbols represent identical or corresponding parts throughout the several views of the drawings, wherein:

[0025] Figure 1 A flow chart of a method for determining a train automatic driving braking performance margin value is shown.

[0026] Figure 2 A block diagram of a device for determining a train automatic driving braking performance margin value is shown. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is to be understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0028] It should be noted that unless otherwise specified, technical or scientific terms used in the present application should be understood as having their common meaning as understood by one of ordinary skill in the art to which the present application pertains.

[0029] Currently, the automatic driving braking margin value of a city railway train is usually determined manually by a staff. However, the staff manually determines the automatic driving braking margin value of the city railway train completely depending on the working experience of the staff, and when the staff lacks working experience, the staff cannot accurately determine the automatic driving braking margin value of the city railway train.

[0030] Therefore, in order to accurately determine the automatic driving braking margin value of the city railway train, embodiments of the present application provide a method for determining a train automatic driving braking performance margin value, as shown in Figure 1 The method comprises the following steps.

[0031] 101. Obtain a set of driving logs corresponding to each preset automatic driving braking performance margin value.

[0032] In the embodiments of the present application, the execution subject in each step is a target application program running in a target terminal device, wherein the target terminal device can be but is not limited to a computer, a tablet computer, a notebook computer, etc.

[0033] In order to determine the optimal automatic driving braking margin value corresponding to the automatic driving system during the operation of the urban railway train in the automatic driving mode on the target main line track and the target turning track included in the target urban railway line, the staff needs to pre-set a plurality of preset automatic driving braking performance margin values, and formulate the automatic driving configuration parameters corresponding to each preset automatic driving braking performance margin value. For any one preset automatic driving braking performance margin value, based on the automatic driving configuration parameters corresponding to the preset automatic driving braking performance margin value, the first test urban railway train and the second test urban railway train are controlled to perform tracking tests on the target main line track and the target turning track, and during the tracking tests, the train operation log of the first test urban railway train is collected by the vehicle-mounted system corresponding to the first test urban railway train, and the train operation log of the second test urban railway train is collected by the vehicle-mounted system corresponding to the second test urban railway train, so as to obtain the train operation log set corresponding to the preset automatic driving braking performance margin value. After obtaining the train operation log set corresponding to each preset automatic driving braking performance margin value, the train operation log set corresponding to each preset automatic driving braking performance margin value can be stored in the local storage space of the target terminal device. When the staff needs to determine the optimal automatic driving braking margin value corresponding to the automatic driving system during the operation of the urban railway train in the automatic driving mode on the target main line track and the target turning track included in the target urban railway line, the target application program needs to obtain the train operation log set corresponding to each preset automatic driving braking performance margin value in the local storage space of the target terminal device.

[0034] The target urban railway line includes a starting station, an ending station and a plurality of intermediate stations.

[0035] For any one preset automatic driving braking performance margin value, the process of controlling the first test urban railway train and the second test urban railway train to perform tracking tests on the target main line track based on the automatic driving configuration parameters corresponding to the preset automatic driving braking performance margin value is as follows:

[0036] For the first test suburban railway train, (1) the preset automatic driving braking performance margin value corresponding to the automatic driving configuration parameter is loaded into the vehicle-mounted automatic driving system of the first test suburban railway train; (2) the full-line forward operation plan is issued to the first test suburban railway train, the plan is compact, so that the first test suburban railway train can run at the highest speed in the automatic driving mode; (3) the first test suburban railway train is added to the target main line track at the starting station, and the vehicle-mounted system of the first test suburban railway train is controlled to start recording the train operation log; (4) the first test suburban railway train is manually controlled to run out of the station, and when the first test suburban railway train meets the preset condition corresponding to the automatic driving mode, the first test suburban railway train is controlled to enter the automatic driving mode; (5) after the first test suburban railway train stops at the next intermediate station, the departure route is triggered, and the automatic driving button is continued to be pressed to run to the next intermediate station; (6) the step (5) is cycled until the first test suburban railway train stops at the terminal station, the train operation log is saved, and the first main line train operation log is obtained.

[0037] For the second test suburban railway train, (1) the preset automatic driving braking performance margin value corresponding to the automatic driving configuration parameter is loaded into the vehicle-mounted automatic driving system of the second test suburban railway train; (2) the full-line forward operation plan is issued to the second test suburban railway train, the plan is compact, so that the second test suburban railway train can run at the highest speed in the automatic driving mode, and the second test suburban railway train is set to cancel self-touch in the CTC (Centralized Traffic Control) diagram interface, so that the second test suburban railway train is parked outside each station; (3) the second test suburban railway train is added to the target main line track at the starting station, and the vehicle-mounted system of the second test suburban railway train is controlled to start recording the train operation log; (4) the second test suburban railway train is manually controlled to run out of the station, and when the second test suburban railway train meets the preset condition corresponding to the automatic driving mode, the second test suburban railway train is controlled to enter the automatic driving mode; (5) the second test suburban railway train is controlled to automatically stop outside the entrance signal of the next intermediate station, the entrance route of the intermediate station is manually opened after stopping, and the automatic driving button is pressed to make the second test suburban railway train automatically run into the station; (6) the second test suburban railway train stops at the intermediate station, the departure route is triggered, and the automatic driving button is continued to be pressed to run to the next intermediate station; (7) the steps (5)-(6) are cycled until the second test suburban railway train arrives at the terminal station, the train operation log is saved, and the second main line train operation log is obtained.

[0038] For any one preset automatic driving braking performance margin value, the process of controlling the first test suburban railway train and the second test suburban railway train to perform tracking test on the target turnback track based on the automatic driving configuration parameter corresponding to the preset automatic driving braking performance margin value is:

[0039] For the first test suburban railway train, (1) load the automatic driving configuration parameter corresponding to the preset automatic driving braking performance margin value into the on-board automatic driving system of the first test suburban railway train; (2) issue a plan for receiving the train at the turnback station, a turnback plan, and a departure plan after turnback to the first test suburban railway train, plan to enter the target turnback track, and plan to be compact, so that the first test suburban railway train can run at the highest speed in the automatic driving mode; (3) add the first test suburban railway train to the target main line track at the last intermediate station before the terminal station, and control the on-board system of the first test suburban railway train to start recording the train operation log; (4) control the first test suburban railway train to run out of the station in the automatic driving mode; (5) control the first test suburban railway train to enter the target turnback track of the terminal station and stop stably and accurately; (6) after turnback, run manually in the partial mode, and after meeting the full automatic driving condition, run in the automatic driving mode and leave the terminal station; (7) the first test suburban railway train stops stably and accurately at the next intermediate station, and after the departure route is triggered, continues to press the automatic driving button to run to the next intermediate station; (8) repeat step (7) until the first test suburban railway train stops stably and accurately at the starting station, saves the train operation log, and obtains the first turnback train operation log.

[0040] For the second test suburban railway train, (1) the preset automatic driving braking performance margin value corresponding to the automatic driving configuration parameter is loaded into the on-board automatic driving system of the second test suburban railway train; (2) the turnaround station receiving plan, the turnaround plan, and the departure plan after turnaround of the second test suburban railway train are issued, the target turnaround track is planned to be accessed, and the plan is compact, so that the second test suburban railway train can run at the highest speed in the automatic driving mode, the second test suburban railway train is set to be cancelled in the CTC (Centralized Traffic Control) diagram interface, so that the second test suburban railway train is parked outside each station; (3) the second test suburban railway train is added to the target main line track at the last intermediate station before the terminal station, and the on-board system of the second test suburban railway train is controlled to start recording the train log; (4) the second test suburban railway train is controlled to run out of the station in the automatic driving mode; (5) the second test suburban railway train is controlled to automatically park outside the entrance signal of the terminal station, and after parking stably, the entrance route of the intermediate station is manually opened, the automatic driving button is pressed, the second test suburban railway train is automatically operated to enter the target turnaround track of the terminal station, and parking is stable; (6) after turnaround, the train is manually operated in the partial mode, and after meeting the full conversion condition, the train is operated in the automatic driving mode, and the train leaves the terminal station and runs outside the entrance signal of the next intermediate station; (7) the second test suburban railway train is controlled to automatically park outside the entrance signal of the next intermediate station, and after parking stably, the entrance route of the intermediate station is manually opened, the automatic driving button is pressed, and the second test suburban railway train is automatically operated to enter the station; (8) the second test suburban railway train parks stably at the intermediate station, and after the departure route is triggered, the automatic driving button is continuously pressed to run outside the entrance signal of the next intermediate station; (9) steps (7)-(8) are repeated until the second test suburban railway train arrives at the starting station, the train log is saved, and the second turnaround train log is obtained.

[0041] 102. According to the train log set corresponding to each preset automatic driving braking performance margin value, the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval, and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value are determined.

[0042] After obtaining the driving log set corresponding to each preset automatic driving braking performance margin value, the target application needs to determine the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value, that is, for any one preset automatic driving braking performance margin value, the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value are determined according to the first positive line driving log, the first turnaround driving log, the second positive line driving log and the second turnaround driving log corresponding to the preset automatic driving braking performance margin value.

[0043] 103. Determine the minimum tracking time interval and the minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value.

[0044] After determining the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value, the target application needs to determine the minimum tracking time interval and the minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value, that is, for any one preset automatic driving braking performance margin value, the greater value of the positive line tracking time interval and the turnaround tracking time interval corresponding to the preset automatic driving braking performance margin value is determined as the minimum tracking time interval corresponding to the preset automatic driving braking performance margin value, and the sum of the minimum positive line operation time length and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value is determined as the minimum operation time length corresponding to the preset automatic driving braking performance margin value.

[0045] 104. For any one preset automatic driving braking performance margin value, the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value are weighted and summed to obtain the weighted score corresponding to the preset automatic driving braking performance margin value.

[0046] After determining the minimum tracking time interval and the minimum operation time length corresponding to each preset automatic driving braking performance margin value, the target application program needs to calculate the score corresponding to each preset automatic driving braking performance margin value according to the plurality of preset automatic driving braking performance margin values, the minimum tracking time interval and the minimum operation time length corresponding to each preset automatic driving braking performance margin value, that is, for any one preset automatic driving braking performance margin value, the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value are weighted and summed to obtain the weighted score corresponding to the preset automatic driving braking performance margin value.

[0047] 105. Selecting the target automatic driving braking performance margin value corresponding to the target straight track and the target turnaround track from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0048] After calculating the weighted score corresponding to each preset automatic driving braking performance margin value, the target application program needs to select the target automatic driving braking performance margin value corresponding to the target straight track and the target turnaround track from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value, that is, the preset automatic driving braking performance margin value with the highest weighted score in the plurality of preset automatic driving braking performance margin values is determined as the target automatic driving braking performance margin value corresponding to the target straight track and the target turnaround track.

[0049] The embodiment of the present application provides a kind of train automatic driving brake performance margin value determination method, the embodiment of the present application can obtain each preset automatic driving brake performance margin value corresponding driving log set after target application program, according to each preset automatic driving brake performance margin value corresponding driving log set, determine each preset automatic driving brake performance margin value corresponding positive line tracking time interval, minimum positive line operation time length, turnaround tracking time interval and minimum turnaround operation time length, and according to each preset automatic driving brake performance margin value corresponding positive line tracking time interval, minimum positive line operation time length, turnaround tracking time interval and minimum turnaround operation time length, determine each preset automatic driving brake performance margin value corresponding minimum tracking time interval and minimum operation time length;For any one preset automatic driving brake performance margin value, the preset automatic driving brake performance margin value and the minimum tracking time interval and minimum operation time length corresponding to the preset automatic driving brake performance margin value are weighted and summed, to obtain the weighted score corresponding to the preset automatic driving brake performance margin value;After calculating the weighted score corresponding to each preset automatic driving brake performance margin value, according to the weighted score corresponding to each preset automatic driving brake performance margin value, select the target automatic driving brake performance margin value corresponding to target positive line track and target turnaround track in multiple preset automatic driving brake performance margin values.Therefore, in the embodiment of the present application, when staff needs to determine the optimal automatic driving brake margin value corresponding to the automatic driving system when the city railway train runs in automatic driving mode on target positive line track and target turnaround track included in target city railway line, staff does not need to participate again after collecting and obtaining each preset automatic driving brake performance margin value corresponding driving log set, target application program can automatically determine the target automatic driving brake performance margin value corresponding to target positive line track and target turnaround track according to preset rule, no longer rely on the work experience of staff, so as to accurately determine the automatic driving brake margin value of city railway train.

[0050] Further, in the embodiments of the present application, for any one preset automatic driving braking performance margin value, the corresponding set of driving logs comprises the first main line driving logs and the first turnaround driving logs corresponding to the first test suburban railway train and the second main line driving logs and the second turnaround driving logs corresponding to the second test suburban railway train, wherein for any one driving log, the driving log records the time when the test suburban railway train passes each kilometer marker and the speed change of the test suburban railway train; the specific process of determining the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the set of driving logs corresponding to each preset automatic driving braking performance margin value is that: for any one preset automatic driving braking performance margin value, (1) according to the first main line driving logs and the second main line driving logs corresponding to the preset automatic driving braking performance margin value, the main line tracking time interval and the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value are determined; (2) according to the first turnaround driving logs and the second turnaround driving logs corresponding to the preset automatic driving braking performance margin value, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value are determined.

[0051] The specific process of determining the positive line tracking time interval and the minimum positive line operation time length corresponding to the preset automatic driving braking performance margin value according to the first positive line driving log and the second positive line driving log is: (1) regarding the target urban railway line containing multiple intermediate stations and terminal stations as multiple other stations, i.e., the target urban railway line contains a starting station and multiple other stations; (2) finding the corresponding departure signal post kilometer marker of each other station in the line engineering data table; (3) determining the corresponding clearance track kilometer marker of each other station according to the corresponding departure signal post kilometer marker of each other station and the corresponding train length and running direction of the first test urban railway train, wherein, when the first test urban railway train runs in the direction of increasing kilometer markers, for any one other station, the corresponding clearance track kilometer marker of the other station = the corresponding departure signal post kilometer marker of the other station + the corresponding train length of the first test urban railway train, and when the first test urban railway train runs in the direction of decreasing kilometer markers, for any one other station, the corresponding clearance track kilometer marker of the other station = the corresponding departure signal post kilometer marker of the other station - the corresponding train length of the first test urban railway train; (4) finding the corresponding train clearance track time of each other station in the first positive line driving log according to the corresponding clearance track kilometer marker of each other station, wherein, for any one other station, the time when the first test urban railway train passes the corresponding clearance track kilometer marker of the other station is the corresponding train clearance track time of the other station; (5) finding the corresponding train moving time and train stopping time of each other station in the first positive line driving log, wherein, for any one other station, the time when the speed of the first test urban railway train changes from 0 to non-0 after the train stops on the track of the other station is the corresponding train moving time of the other station, and the time when the speed of the first test urban railway train changes to 0 and the maximum service braking is applied in the track of the other station is the corresponding train stopping time of the other station; (8) finding the corresponding station outside deceleration kilometer marker of each other station in the second positive line driving log, wherein, for any one other station, the kilometer marker when the second test urban railway train starts to decelerate outside the other station is the corresponding station outside deceleration kilometer marker of the other station; (9) finding the corresponding train deceleration time of each other station in the first positive line driving log according to the corresponding station outside deceleration kilometer marker of each other station, wherein, for any one other station, the time when the first test urban railway train passes the corresponding station outside deceleration kilometer marker of the other station is the corresponding train deceleration time of the other station.(10) calculating the running time length, the track clearing time length and the stopping time length at each other station according to the train track clearing time length, the train vehicle time length, the train stopping time length and the train deceleration time length corresponding to each other station, that is, for any one other station, the running time length corresponding to the other station is obtained by subtracting the train vehicle time length corresponding to the previous other station from the train stopping time length corresponding to the other station, the track clearing time length corresponding to the other station is obtained by subtracting the train vehicle time length corresponding to the other station from the train track clearing time length corresponding to the other station, and the stopping time length corresponding to the other station is obtained by subtracting the train deceleration time length corresponding to the other station from the train stopping time length corresponding to the other station;(11) calculating the tracking time interval corresponding to each other station according to the track clearing time length, the stopping time length, the clearing delay time length and the route handling time length corresponding to each other station, and determining the maximum value in the plurality of tracking time intervals as the main line tracking time interval corresponding to the preset automatic driving braking performance margin value, that is, for any one other station, the tracking time interval corresponding to the other station is obtained by summing the track clearing time length, the stopping time length, the clearing delay time length and the route handling time length corresponding to the other station, wherein the stopping time length, the clearing delay time length and the route handling time length corresponding to the other station are preset by the staff according to the actual situation corresponding to the other station, the stopping time length corresponding to the other station is used to indicate the time length of the test city railway train staying at the other station, the clearing delay time length corresponding to the other station is used to indicate the technical delay time length of the test city railway train clearing the route at the other station, and the route handling time length corresponding to the other station is used to indicate the time length required for the test city railway train to handle the route at the other station;(12) calculating the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value according to the running time length and the stopping time length corresponding to each other station, that is, summing the running time length and the stopping time length corresponding to each other station to obtain the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value.

[0052] wherein the specific process of determining the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value according to the first turnaround train log and the second turnaround train log is:

[0053] (1) regarding the target urban railway line containing multiple intermediate stations and a starting station as multiple other stations, i.e., the target urban railway line contains a terminal station and multiple other stations; (2) finding the out-bound crossover outer insulating joint kilometer marker corresponding to the terminal station and the out-bound signal kilometer marker corresponding to each other station in the line engineering data table; (3) determining the out-clear turnaround station crossover kilometer marker corresponding to the terminal station according to the out-bound crossover outer insulating joint kilometer marker corresponding to the terminal station and the length and running direction of the first test urban railway train, wherein when the first test urban railway train runs in the direction in which the kilometer marker increases, the out-clear turnaround station crossover kilometer marker corresponding to the terminal station = the out-bound crossover outer insulating joint kilometer marker corresponding to the terminal station + the length of the first test urban railway train, and when the first test urban railway train runs in the direction in which the kilometer marker decreases, the out-clear turnaround station crossover kilometer marker corresponding to the terminal station = the out-bound crossover outer insulating joint kilometer marker corresponding to the terminal station - the length of the first test urban railway train; (4) finding the out-clear crossover time corresponding to the terminal station in the first turnaround train log according to the out-clear turnaround station crossover kilometer marker corresponding to the terminal station, wherein the time at which the first test urban railway train passes the out-clear turnaround station crossover kilometer marker corresponding to the terminal station is the out-clear crossover time corresponding to the terminal station; (5) finding the train moving time and train stopping time corresponding to the terminal station and the train moving time and train stopping time corresponding to each other station in the first turnaround train log; (6) finding the station-out deceleration kilometer marker corresponding to the terminal station in the second turnaround train log, wherein the kilometer marker at which the second test urban railway train starts to decelerate outside the terminal station is the station-out deceleration kilometer marker corresponding to the terminal station; and (7) finding the train deceleration time corresponding to the terminal station in the first turnaround train log according to the station-out deceleration kilometer marker corresponding to the terminal station, wherein the time at which the first test urban railway train passes the station-out deceleration kilometer marker corresponding to the terminal station is the train deceleration time corresponding to the terminal station.(8) according to the emptying crossover time corresponding to the terminal station, the train motor time, the train stopping time and the train deceleration time, the preset automatic driving braking performance margin value corresponding to the turnaround tracking time interval is calculated, that is, the emptying crossover time corresponding to the terminal station is subtracted from the motor time corresponding to the terminal station to obtain the emptying crossover time corresponding to the terminal station, the train stopping time corresponding to the terminal station is subtracted from the train deceleration time corresponding to the terminal station to obtain the stopping time in the terminal station. The length of time, finally, the emptying crossover time corresponding to the terminal station, the length of time, the length of time, the length of time and the length of time are summed up to obtain the preset automatic driving braking performance margin value corresponding to the turnaround tracking time interval, wherein the length of time, the length of time, the length of time and the length of time corresponding to the terminal station are set by the staff according to the actual situation of the terminal station. The length of time corresponding to the terminal station is used to indicate the sum of the length of time consumed by the automatic turnaround and the length of time for passengers to get on and off the train, the length of time corresponding to the terminal station is used to indicate the technical delay time for the test city railway train to clear the route in the terminal station, and the length of time corresponding to the terminal station is used to indicate the time required for the test city railway train to handle the route in the terminal station; (9) first, according to the train motor time and the train stopping time corresponding to each other station, the running time corresponding to each other station is calculated, that is, for any other station, the train stopping time corresponding to the other station is subtracted from the train motor time corresponding to the previous other station to obtain the running time corresponding to the other station, and then according to the running time and the stopping time corresponding to each other station, the minimum turnaround operation time corresponding to the preset automatic driving braking performance margin value is calculated, that is, the running time and the stopping time corresponding to each other station are summed up to obtain the minimum positive line operation time corresponding to the preset automatic driving braking performance margin value.

[0054] Further, in the embodiment of the present application, for any one preset automatic driving braking performance margin value, the preset automatic driving braking performance margin value, the minimum tracking time interval and the minimum operation time corresponding to the preset automatic driving braking performance margin value are weighted and summed up to obtain the specific process of the weighted score corresponding to the preset automatic driving braking performance margin value. First, the first preset weight value corresponding to the preset automatic driving braking performance margin value, the second preset weight value corresponding to the minimum tracking time interval and the third preset weight value corresponding to the minimum operation time are obtained, wherein the sum of the first preset weight value, the second preset weight value and the third preset weight value is equal to 1; the preset automatic driving braking performance margin value, the minimum tracking time interval, the minimum operation time, the first preset weight value, the second preset weight value and the third preset weight value are substituted into the preset formula to calculate the weighted score corresponding to the preset automatic driving braking performance margin value, wherein the preset formula is specifically:

[0055] Y = a1*[(t1'-t1) / t1'] + a2*[(t2'-t2) / t2'] + a3*M

[0056] wherein Y is a weighted score corresponding to a preset automatic driving braking performance margin value, a1 is a third preset weight value, t1' is a pre-set engineering requirement minimum operation time length, t1 is a minimum operation time length, a2 is a second preset weight value, t2' is a pre-set engineering requirement minimum tracking time interval, t2 is a minimum tracking time interval, a3 is a first preset weight value, and M is the preset automatic driving braking performance margin value.

[0057] It should be noted that when the minimum tracking time interval corresponding to the preset automatic driving braking performance margin value is greater than the pre-set engineering requirement minimum tracking time interval, or the minimum operation time length corresponding to the preset automatic driving braking performance margin value is greater than the pre-set engineering requirement minimum operation time length, the weighted score corresponding to the preset automatic driving braking performance margin value can be directly set to 0 without calculation.

[0058] Further, as an implementation of the above-mentioned Figure 1 method, another embodiment of the present application also provides a device for determining a train automatic driving braking performance margin value. The device embodiment corresponds to the above-mentioned method embodiment, and for the sake of reading, the details of the above-mentioned method embodiment will not be described one by one, but it should be clear that the device in this embodiment can correspondingly implement all the contents in the above-mentioned method embodiment. The device is applied to accurately determine the automatic driving braking margin value of a city railway train, and specifically as shown in the device, the device comprises: Figure 2

[0059] The acquisition unit 21 is configured to acquire a set of driving logs corresponding to each preset automatic driving braking performance margin value. For any one preset automatic driving braking performance margin value, the set of driving logs corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test city railway train and a vehicle-mounted system of a second test city railway train during a tracking test process of the first test city railway train and the second test city railway train on a target main line track and a target turnaround track included in a target city railway line based on an automatic driving configuration parameter formulated based on the preset automatic driving braking performance margin value and controlled based on the automatic driving configuration parameter.

[0060] The first determination unit 22 is configured to determine a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval, and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the set of driving logs corresponding to each preset automatic driving braking performance margin value acquired by the acquisition unit 21.

[0061] ​The second determining unit 23 is configured to determine, for each preset automatic driving braking performance margin value, a minimum tracking time interval and a minimum operation time length corresponding to the preset automatic driving braking performance margin value according to the positive line tracking time interval, the minimum positive line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value determined by the first determining unit 22.

[0062] The calculating unit 24 is configured to, for any one preset automatic driving braking performance margin value, perform weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value.

[0063] The selecting unit 25 is configured to select, from the plurality of preset automatic driving braking performance margin values, a target automatic driving braking performance margin value corresponding to the target positive line track and the target turnaround track according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0064] Further, as shown in Figure 2 For any one preset automatic driving braking performance margin value, the corresponding set of driving logs includes the first positive line driving log and the first turnaround driving log corresponding to the first test suburban railway train and the second positive line driving log and the second turnaround driving log corresponding to the second test suburban railway train. The first determining unit 22 is specifically configured to, for any one preset automatic driving braking performance margin value, determine the positive line tracking time interval and the minimum positive line operation time length corresponding to the preset automatic driving braking performance margin value according to the first positive line driving log and the second positive line driving log corresponding to the preset automatic driving braking performance margin value; and determine the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value according to the first turnaround driving log and the second turnaround driving log corresponding to the preset automatic driving braking performance margin value.

[0065] Further, as shown in Figure 2As shown, the target urban rail line includes a starting station and multiple other stations; the first determining unit 22 is specifically used for: searching for the kilometer marker of the departure signal corresponding to each of the other stations in the line engineering data table; determining the track clearing kilometer marker corresponding to each of the other stations based on the kilometer marker of the departure signal corresponding to each of the other stations and the length and direction of travel of the first test urban rail train; searching for the train track clearing time corresponding to each of the other stations in the first mainline train log based on the track clearing kilometer marker corresponding to each of the other stations; searching for the train departure time and train stopping time corresponding to each of the other stations in the first mainline train log; searching for the deceleration kilometer marker outside the station corresponding to each of the other stations in the second mainline train log; and determining the track clearing kilometer marker corresponding to each of the other stations based on the kilometer marker of the departure signal corresponding to each of the other stations. The deceleration kilometer marker outside the station searches for the train deceleration time corresponding to each of the other stations in the first mainline train log; based on the train track clearing time, train departure time, train stopping time, and train deceleration time corresponding to each of the other stations, the running time, track clearing time, and station entry stopping time corresponding to each of the other stations are calculated; based on the track clearing time, station entry stopping time, station stop time, clearing delay time, and route processing time corresponding to each of the other stations, the tracking time interval corresponding to each of the other stations is calculated, and the maximum value among the multiple tracking time intervals is determined as the mainline tracking time interval corresponding to the preset automatic driving braking performance margin value; based on the running time and station stop time corresponding to each of the other stations, the minimum mainline operating time corresponding to the preset automatic driving braking performance margin value is calculated.

[0066] Furthermore, such as Figure 2 As shown, the first determining unit 22 is specifically used for: for any other station, subtracting the train departure time of the previous other station from the train departure time of the other station to obtain the running time of the other station; subtracting the train departure time of the other station from the train departure time of the other station to obtain the track departure time of the other station; and subtracting the train deceleration time of the other station from the train stopping time of the other station to obtain the station entry stopping time of the other station.

[0067] Furthermore, such as Figure 2As shown, the target urban rail line includes a terminal station and a plurality of other stations; the first determining unit 22 is specifically configured to: find the outbound crossover outside insulation joint kilometer marker corresponding to the terminal station and the outbound signal kilometer marker corresponding to each of the other stations in the line engineering data table; determine the clear return crossover kilometer marker corresponding to the terminal station according to the outbound crossover outside insulation joint kilometer marker corresponding to the terminal station and the train length and the running direction of the first test urban rail train; find the clear crossover time corresponding to the terminal station in the first return train log according to the clear return crossover kilometer marker corresponding to the terminal station; find the train motor vehicle time and the train parking time corresponding to the terminal station and the train motor vehicle time and the train parking time corresponding to each of the other stations in the first return train log; find the station outside deceleration kilometer marker corresponding to the terminal station in the second return train log; find the train deceleration time corresponding to the terminal station in the first return train log according to the station outside deceleration kilometer marker corresponding to the terminal station; calculate the return tracking time interval corresponding to the preset automatic driving braking performance margin value according to the clear crossover time, the train motor vehicle time, the train parking time and the train deceleration time corresponding to the terminal station; calculate the running time length corresponding to each of the other stations according to the train motor vehicle time and the train parking time corresponding to each of the other stations, and calculate the minimum return operation time length corresponding to the preset automatic driving braking performance margin value according to the running time length and the station stopping time length corresponding to each of the other stations.

[0068] Further, as shown in the first embodiment of the present application, Figure 2 The first determining unit 22 is specifically configured to: subtract the train motor vehicle time corresponding to the terminal station from the clear crossover time corresponding to the terminal station to obtain the crossover clear time length corresponding to the terminal station; subtract the train deceleration time corresponding to the terminal station from the train parking time corresponding to the terminal station to obtain the arrival parking time length corresponding to the terminal station; and calculate the return tracking time interval corresponding to the preset automatic driving braking performance margin value according to the crossover clear time length, the arrival parking time length, the original place return time length, the clear delay time length and the route handling time length corresponding to the terminal station.

[0069] Further, as shown in the first embodiment of the present application, Figure 2As shown, the calculation unit 24 is specifically configured to: acquire a first preset weight value corresponding to the preset automatic driving braking performance margin value, a second preset weight value corresponding to the minimum tracking time interval, and a third preset weight value corresponding to the minimum operation time length; and substitute the preset automatic driving braking performance margin value, the minimum tracking time interval, the minimum operation time length, the first preset weight value, the second preset weight value, and the third preset weight value into a preset formula to calculate a weighted score corresponding to the preset automatic driving braking performance margin value, wherein the preset formula is specifically:

[0070] Y = a1 * [(t1'-t1) / t1'] + a2 * [(t2'-t2) / t2'] + a3 * M

[0071] wherein Y is the weighted score corresponding to the preset automatic driving braking performance margin value, a1 is the third preset weight value, t1' is a pre-set engineering requirement minimum operation time length, t1 is the minimum operation time length, a2 is the second preset weight value, t2' is a pre-set engineering requirement minimum tracking time interval, t2 is the minimum tracking time interval, a3 is the first preset weight value, and M is the preset automatic driving braking performance margin value.

[0072] The embodiment of the present application provides a kind of train automatic driving brake performance margin value determination method and device, the embodiment of the present application can obtain each preset automatic driving brake performance margin value corresponding driving log set after target application program obtains, according to each preset automatic driving brake performance margin value corresponding driving log set, determine each preset automatic driving brake performance margin value corresponding positive line tracking time interval, minimum positive line operation time length, turnaround tracking time interval and minimum turnaround operation time length, and according to each preset automatic driving brake performance margin value corresponding positive line tracking time interval, minimum positive line operation time length, turnaround tracking time interval and minimum turnaround operation time length, determine each preset automatic driving brake performance margin value corresponding minimum tracking time interval and minimum operation time length;For any one preset automatic driving brake performance margin value, the preset automatic driving brake performance margin value and the minimum tracking time interval and minimum operation time length corresponding to the preset automatic driving brake performance margin value are weighted and summed, to obtain the weighted score corresponding to the preset automatic driving brake performance margin value;After calculating the weighted score corresponding to each preset automatic driving brake performance margin value, the target automatic driving brake performance margin value corresponding to target positive line track and target turnaround track is selected according to the weighted score corresponding to each preset automatic driving brake performance margin value in multiple preset automatic driving brake performance margin values.Therefore, in the embodiment of the present application, when the staff needs to determine the optimal automatic driving brake margin value corresponding to the automatic driving system when the urban railway train runs in the target automatic driving mode on the target positive line track and the target turnaround track included in the target urban railway line, the staff does not need to participate again after collecting the driving log set corresponding to each preset automatic driving brake performance margin value, and the target application program can automatically determine the target automatic driving brake performance margin value corresponding to the target positive line track and the target turnaround track according to the preset rule, and no longer depends on the work experience of the staff, so as to accurately determine the automatic driving brake margin value of the urban railway train.

[0073] The embodiment of the present application provides a kind of storage medium, the storage medium includes stored program, wherein, when the program runs, control the device where the storage medium executes the train automatic driving brake performance margin value determination method described above.

[0074] Storage medium can include non-permanent memory in computer readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash (flash RAM), memory includes at least one memory chip.

[0075] The embodiment of the present application further provides a device for determining a train automatic driving braking performance margin value, the device comprising a storage medium and one or more processors, the storage medium being coupled with the processors, and the processors being configured to execute program instructions stored in the storage medium; and the program instructions being used to perform the train automatic driving braking performance margin value determination method.

[0076] The embodiment of the present application provides a device, which comprises a processor, a memory and a program stored in the memory and executable on the processor, and the processor implements the following steps when executing the program:

[0077] obtain a driving log set corresponding to each preset automatic driving braking performance margin value, wherein for any one preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process of the first test suburban railway train and the second test suburban railway train on a target main line track and a target turnaround track included in a target suburban railway line based on an automatic driving configuration parameter after the automatic driving configuration parameter is formulated based on the preset automatic driving braking performance margin value;

[0078] determine a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value;

[0079] determine a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value;

[0080] for any one preset automatic driving braking performance margin value, perform weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value;

[0081] select a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0082] Further, for any one preset automatic driving braking performance margin value, the corresponding train operation log set thereof comprises the first main line train operation log and the first turnaround train operation log corresponding to the first test suburban railway train, and the second main line train operation log and the second turnaround train operation log corresponding to the second test suburban railway train; and the determination of the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the corresponding train operation log set of each preset automatic driving braking performance margin value comprises:

[0083] For any one preset automatic driving braking performance margin value, the main line tracking time interval and the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value are determined according to the first main line train operation log and the second main line train operation log corresponding to the preset automatic driving braking performance margin value.

[0084] The turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value are determined according to the first turnaround train operation log and the second turnaround train operation log corresponding to the preset automatic driving braking performance margin value.

[0085] Further, the target suburban railway line comprises a starting station and a plurality of other stations; and the determination of the main line tracking time interval and the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value according to the first main line train operation log and the second main line train operation log corresponding to the preset automatic driving braking performance margin value comprises:

[0086] The departure signal post kilometer marker corresponding to each of the other stations is found in the line engineering data table;

[0087] The clearance track kilometer marker corresponding to each of the other stations is determined according to the departure signal post kilometer marker corresponding to each of the other stations and the train length and the running direction of the first test suburban railway train;

[0088] The train clearance track time corresponding to each of the other stations is found in the first main line train operation log according to the clearance track kilometer marker corresponding to each of the other stations;

[0089] The train car time and the train stop time corresponding to each of the other stations are found in the first main line train operation log;

[0090] The station-out deceleration kilometer marker corresponding to each of the other stations is found in the second main line train operation log;

[0091] The train deceleration time corresponding to each of the other stations is found in the first main line train operation log according to the station-out deceleration kilometer marker corresponding to each of the other stations;

[0092] According to the train track clearing time, the train motor time, the train stopping time and the train deceleration time corresponding to each of the other stations, the running time, the track clearing time and the station stopping time corresponding to each of the other stations are calculated;

[0093] According to the track clearing time, the station stopping time, the stopping time, the clearing delay time and the route handling time corresponding to each of the other stations, the tracking time interval corresponding to each of the other stations is calculated, and the maximum value in the multiple tracking time intervals is determined as the main line tracking time interval corresponding to the preset automatic driving braking performance margin value;

[0094] According to the running time and the stopping time corresponding to each of the other stations, the minimum main line operation time corresponding to the preset automatic driving braking performance margin value is calculated.

[0095] Further, the calculation of the running time, the track clearing time and the station stopping time corresponding to each of the other stations according to the train track clearing time, the train motor time, the train stopping time and the train deceleration time corresponding to each of the other stations comprises:

[0096] For any one of the other stations, the train stopping time corresponding to the other station is subtracted from the train motor time corresponding to the previous other station to obtain the running time corresponding to the other station;

[0097] The train track clearing time corresponding to the other station is subtracted from the motor time corresponding to the other station to obtain the track clearing time corresponding to the other station;

[0098] The train stopping time corresponding to the other station is subtracted from the train deceleration time corresponding to the other station to obtain the station stopping time corresponding to the other station.

[0099] Further, the target city area railway line includes a terminal station and a plurality of other stations; and the determination of the turnaround tracking time interval and the minimum turnaround operation time corresponding to the preset automatic driving braking performance margin value according to the first turnaround train log and the second turnaround train log corresponding to the preset automatic driving braking performance margin value comprises:

[0100] The outbound crossover outside insulation section kilometer mark corresponding to the terminal station and the outbound signal kilometer mark corresponding to each of the other stations are found in the line engineering data table;

[0101] According to the outbound crossover outside insulation section kilometer mark corresponding to the terminal station and the length, the running direction corresponding to the first test city area railway train, the clearing turnaround station crossover kilometer mark corresponding to the terminal station is determined;

[0102] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0103] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0104] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0105] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0106] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0107] According to the emptying crossover kilometer marker corresponding to the terminal station and the emptying crossover time corresponding to the terminal station, the emptying crossover time corresponding to the terminal station is searched in the first turn-back train log;

[0108] Further, the calculation of the turn-back tracking time interval corresponding to the preset automatic driving braking performance margin value according to the emptying crossover time corresponding to the terminal station, the train motor vehicle time corresponding to the terminal station, the train parking time corresponding to the terminal station and the train deceleration time corresponding to the terminal station comprises:

[0109] The emptying crossover time corresponding to the terminal station is subtracted from the train motor vehicle time corresponding to the terminal station to obtain the crossover emptying time length corresponding to the terminal station;

[0110] The train parking time corresponding to the terminal station is subtracted from the train deceleration time corresponding to the terminal station to obtain the arrival parking time length corresponding to the terminal station;

[0111] According to the emptying crossover time length corresponding to the terminal station, the arrival parking time length corresponding to the terminal station, the original place turn-back time length, the emptying delay time length and the route handling time length, the turn-back tracking time interval corresponding to the preset automatic driving braking performance margin value is calculated.

[0112] Further, the weighted sum calculation of the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time corresponding to the preset automatic driving braking performance margin value is to obtain the weighted score corresponding to the preset automatic driving braking performance margin value, comprising:

[0113] obtaining a first preset weight value corresponding to the preset automatic driving braking performance margin value, a second preset weight value corresponding to the minimum tracking time interval, and a third preset weight value corresponding to the minimum operation time length;

[0114] substituting the preset automatic driving braking performance margin value, the minimum tracking time interval, the minimum operation time length, the first preset weight value, the second preset weight value, and the third preset weight value into a preset formula to calculate a weighted score corresponding to the preset automatic driving braking performance margin value, wherein the preset formula is specifically:

[0115] Y = a1*[(t1'-t1) / t1'] + a2*[(t2'-t2) / t2'] + a3*M

[0116] wherein Y is the weighted score corresponding to the preset automatic driving braking performance margin value, a1 is the third preset weight value, t1' is a pre-set engineering requirement minimum operation time length, t1 is the minimum operation time length, a2 is the second preset weight value, t2' is a pre-set engineering requirement minimum tracking time interval, t2 is the minimum tracking time interval, a3 is the first preset weight value, and M is the preset automatic driving braking performance margin value.

[0117] The application also provides a computer program product suitable for executing program code for initializing the following method steps when executed on a data processing device: obtaining a driving log set corresponding to each preset automatic driving braking performance margin value, wherein for any one preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process of the first test suburban railway train and the second test suburban railway train on a target main line track and a target turnaround track included in a target suburban railway line based on an automatic driving configuration parameter formulated based on the preset automatic driving braking performance margin value and controlled based on the automatic driving configuration parameter; determining a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value; determining a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value; for any one preset automatic driving braking performance margin value, performing weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value; and selecting a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

[0118] Those skilled in the art will understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage, etc.) containing computer usable program code.

[0119] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0120] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0121] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0122] In one typical configuration, the computing device includes one or more processors (CPU's), input / output interfaces, network interfaces, and memory.

[0123] The memory can include non-persistent memory and / or persistent memory, such as flash memory, read-only memory (ROM), and / or volatile or non-volatile random access memory (RAM), among others. The memory is an example of computer readable media.

[0124] Computer-readable media includes permanent and non-permanent, movable and non-movable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0125] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusions, such that a process, method, article or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0126] Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system or computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) containing computer usable program code.

[0127] The above merely provides embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A method for determining a train automatic operation brake performance margin value, characterized by, The method comprises: acquiring a driving log set corresponding to each preset automatic driving braking performance margin value, wherein for any one preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process of the first test suburban railway train and the second test suburban railway train on a target main line track and a target turnaround track included in a target suburban railway line based on an automatic driving configuration parameter formulated based on the preset automatic driving braking performance margin value; determining a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value; determining a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value according to the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value; for any one preset automatic driving braking performance margin value, performing weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value; selecting a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the plurality of preset automatic driving braking performance margin values according to the weighted score corresponding to each preset automatic driving braking performance margin value.

2. The method of claim 1, wherein, For any one preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises first main line driving logs and first turnaround driving logs corresponding to the first test suburban railway train and second main line driving logs and second turnaround driving logs corresponding to the second test suburban railway train; the determination of the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value according to the driving log set corresponding to each preset automatic driving braking performance margin value comprises: for any one preset automatic driving braking performance margin value, determining the main line tracking time interval and the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value according to the first main line driving logs and the second main line driving logs corresponding to the preset automatic driving braking performance margin value; determining the turnaround tracking time interval and the minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value according to the first turnaround driving logs and the second turnaround driving logs corresponding to the preset automatic driving braking performance margin value.

3. The method of claim 2, wherein, The target urban railway line includes a starting station and a plurality of other stations; and the first main line train log and the second main line train log corresponding to the preset automatic driving braking performance margin value are used to determine a main line tracking time interval and a minimum main line operation time length corresponding to the preset automatic driving braking performance margin value, including: Looking up an outgoing signal kilometer marker corresponding to each of the other stations in a line engineering data table; Determining a track clearing kilometer marker corresponding to each of the other stations according to the outgoing signal kilometer marker corresponding to each of the other stations and the train length and running direction of the first test urban railway train; Looking up a train track clearing time corresponding to each of the other stations in the first main line train log according to the track clearing kilometer marker corresponding to each of the other stations; Looking up a train motor time and a train stopping time corresponding to each of the other stations in the first main line train log; Looking up a station outside deceleration kilometer marker corresponding to each of the other stations in the second main line train log; Looking up a train deceleration time corresponding to each of the other stations in the first main line train log according to the station outside deceleration kilometer marker corresponding to each of the other stations; Calculating a running time length, a track clearing time length and an entering station stopping time length corresponding to each of the other stations according to the train track clearing time, the train motor time, the train stopping time and the train deceleration time corresponding to each of the other stations; Calculating a tracking time interval corresponding to each of the other stations according to the track clearing time length, the entering station stopping time length, the stopping time length, the track clearing delay time length and the route handling time length corresponding to each of the other stations, and determining a maximum value of a plurality of tracking time intervals as the main line tracking time interval corresponding to the preset automatic driving braking performance margin value; Calculating the minimum main line operation time length corresponding to the preset automatic driving braking performance margin value according to the running time length and the stopping time length corresponding to each of the other stations.

4. The method of claim 3, wherein, The calculating of the running time length, the track clearing time length and the entering station stopping time length corresponding to each of the other stations according to the train track clearing time, the train motor time, the train stopping time and the train deceleration time corresponding to each of the other stations includes: For any one of the other stations, the train stopping time corresponding to the other station is subtracted from the train motor time corresponding to the previous other station to obtain the running time length corresponding to the other station; The train track clearing time corresponding to the other station is subtracted from the motor time corresponding to the other station to obtain the track clearing time length corresponding to the other station; The train stopping time corresponding to the other station is subtracted from the train deceleration time corresponding to the other station to obtain the entering station stopping time length corresponding to the other station.

5. The method of claim 2, wherein, The target urban railway line includes a terminal station and a plurality of other stations; and the first turnaround train log and the second turnaround train log corresponding to the preset automatic driving braking performance margin value are used to determine a turnaround tracking time interval and a minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value, including: finding an outbound crossover outside insulating joint kilometer marker corresponding to the terminal station and an outbound signal kilometer marker corresponding to each of the other stations in a line engineering data table; determining an outbound crossover kilometer marker corresponding to a turnaround station of the terminal station according to the outbound crossover outside insulating joint kilometer marker corresponding to the terminal station and a train length and a running direction corresponding to the first test city rail train; finding an outbound crossover time corresponding to the terminal station in the first turnaround train log according to the outbound crossover kilometer marker corresponding to the turnaround station of the terminal station; finding train moving time and train stopping time corresponding to the terminal station and train moving time and train stopping time corresponding to each of the other stations in the first turnaround train log; finding a station outside deceleration kilometer marker corresponding to the terminal station in the second turnaround train log; finding train deceleration time corresponding to the terminal station in the first turnaround train log according to the station outside deceleration kilometer marker corresponding to the terminal station; calculating turnaround tracking time interval corresponding to the preset automatic driving braking performance margin value according to the outbound crossover time, train moving time, train stopping time and train deceleration time corresponding to the terminal station; calculating running time length corresponding to each of the other stations according to train moving time and train stopping time corresponding to each of the other stations, and calculating minimum turnaround operation time length corresponding to the preset automatic driving braking performance margin value according to running time length and stopping time length corresponding to each of the other stations.

6. The method of claim 5, wherein, The calculating turnaround tracking time interval corresponding to the preset automatic driving braking performance margin value according to the outbound crossover time, train moving time, train stopping time and train deceleration time corresponding to the terminal station comprises: subtracting train moving time corresponding to the terminal station from outbound crossover time corresponding to the terminal station to obtain crossover clearance time length corresponding to the terminal station; subtracting train deceleration time corresponding to the terminal station from train stopping time corresponding to the terminal station to obtain stopping time length corresponding to the terminal station; calculating turnaround tracking time interval corresponding to the preset automatic driving braking performance margin value according to crossover clearance time length, stopping time length, turnaround time length, clearance delay time length and route handling time length corresponding to the terminal station.

7. The method according to any one of claims 1 to 6, characterized in that, The weighted sum calculation of the preset automatic driving braking performance margin value, minimum tracking time interval and minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain weighted score corresponding to the preset automatic driving braking performance margin value comprises: obtaining first preset weight value corresponding to the preset automatic driving braking performance margin value, second preset weight value corresponding to the minimum tracking time interval and third preset weight value corresponding to the minimum operation time length; The preset automatic driving braking performance margin value, the minimum tracking time interval, the minimum operation time length, the first preset weight value, the second preset weight value and the third preset weight value are substituted into a preset formula to calculate a weighted score corresponding to the preset automatic driving braking performance margin value, wherein the preset formula is specifically: Y=a1*[(t1'-t1) / t1'] +a2*[(t2'-t2) / t2'] +a3*M Wherein Y is the weighted score corresponding to the preset automatic driving braking performance margin value, a1 is the third preset weight value, t1' is a pre-set engineering requirement minimum operation time length, t1 is the minimum operation time length, a2 is the second preset weight value, t2' is a pre-set engineering requirement minimum tracking time interval, t2 is the minimum tracking time interval, a3 is the first preset weight value, and M is the preset automatic driving braking performance margin value.

8. A device for determining the braking performance margin value of automatic train operation, characterized in that, The device comprises: An acquisition unit configured to acquire a driving log set corresponding to each preset automatic driving braking performance margin value, wherein for any one preset automatic driving braking performance margin value, the driving log set corresponding to the preset automatic driving braking performance margin value comprises driving logs collected by a vehicle-mounted system of a first test suburban railway train and a vehicle-mounted system of a second test suburban railway train during a tracking test process in which the first test suburban railway train and the second test suburban railway train are controlled based on automatic driving configuration parameters formulated based on the preset automatic driving braking performance margin value to run on a target main line track and a target turnaround track included in a target suburban railway line; A first determination unit configured to determine a main line tracking time interval, a minimum main line operation time length, a turnaround tracking time interval and a minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value based on the driving log set corresponding to each preset automatic driving braking performance margin value; A second determination unit configured to determine a minimum tracking time interval and a minimum operation time length corresponding to each preset automatic driving braking performance margin value based on the main line tracking time interval, the minimum main line operation time length, the turnaround tracking time interval and the minimum turnaround operation time length corresponding to each preset automatic driving braking performance margin value; A calculation unit configured to, for any one preset automatic driving braking performance margin value, perform weighted summation calculation on the preset automatic driving braking performance margin value and the minimum tracking time interval and the minimum operation time length corresponding to the preset automatic driving braking performance margin value to obtain a weighted score corresponding to the preset automatic driving braking performance margin value; A selection unit configured to select a target automatic driving braking performance margin value corresponding to the target main line track and the target turnaround track from the preset automatic driving braking performance margin values based on the weighted score corresponding to each preset automatic driving braking performance margin value.

9. A storage medium, characterized by The storage medium comprises a stored program, wherein the program, when executed, controls a device in which the storage medium is located to perform the method for determining the train automatic driving braking performance margin value according to any one of claims 1 to 7.

10. A device for determining the braking performance margin value of automatic train operation, characterized in that, The device comprises a storage medium and one or more processors, the storage medium is coupled to the processor, and the processor is configured to execute program instructions stored in the storage medium; and the program instructions, when executed, control a device in which the storage medium is located to perform the method for determining the train automatic driving braking performance margin value according to any one of claims 1 to 7.

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