Operation capability analysis method, device, equipment and medium of virtual marshalling train

Abstract

The invention provides an operation capability analysis method and device for a virtual marshalling train, equipment and a medium. The whole virtual marshalling train is composed of a plurality of marshalling trains. Wherein one marshalling train is a leading train, and the other marshalling trains are following trains; the method comprises the following steps: determining the vehicle length of a leading vehicle and the vehicle length of each following vehicle; the safety distance between each following vehicle and the front vehicle is determined; according to the distance function, the train length and the safety distance of the speed change of each following train, the whole train length of the virtual marshalling train is analyzed; and analyzing the operation capability of the virtual marshalling train according to the length of the whole train. According to the method, the whole train length of the virtual marshalling train is analyzed according to the distance function of the speed change of each following train, the train length of the leading train, the train length of each following train and the safety distance between each following train and the front train, and then the operation capacity of the virtual marshalling train is analyzed according to the whole train length. Quantitative analysis of the operation capability of the train control system based on the virtual marshalling principle is realized.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to a method, device, equipment, and medium for analyzing the operating capacity of a virtual train set. Background Art

[0002] With the continuous growth of network scale and passenger flow, the uneven distribution of urban rail transit passenger flow in time and space has gradually become prominent, and the existing train operation organization method is difficult to achieve the dynamic change of capacity and passenger flow. On the one hand, during the commuter peak, the capacity of some sections with large passenger flow is tight, resulting in congestion in stations and trains, and serious queues inside and outside stations; on the other hand, during the period of low passenger flow, most sections provide excess capacity, and there is a phenomenon of low train load rate or even "empty running", resulting in idleness and waste of resources such as vehicles, personnel, infrastructure and energy.

[0003] By dynamically adjusting the train formation mode online, efficient use of resources such as vehicles and accurate matching of passenger flow and vehicle flow can be achieved. It is an important means to achieve energy conservation, carbon reduction and efficiency improvement in urban rail transit. At the same time, it can effectively increase the proportion of urban rail transit travel, thereby providing better transportation services. Among them, virtual coupling (VC) technology can achieve the connection between vehicles without relying on physical contact and interaction between couplers. The virtual marshaling train formed can not only meet the needs of train formation operation, but also can conveniently change the formation mode (formation or unformation) dynamically according to changes in passenger flow demand. Virtual marshaling technology has become the development direction of the new generation of rail transit train operation control technology and has broad development prospects.

[0004] It is currently not possible to analyse the operational capabilities of a train control system based on the principle of virtual marshaling. Summary of the invention

[0005] In order to solve one of the above-mentioned technical defects, the present application provides a method, device, equipment and medium for analyzing the operating capacity of a virtual train.

[0006] In a first aspect of the present application, a method for analyzing the operating capacity of a virtual marshaling train is provided, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains;

[0007] The method includes:

[0008] Determine the length of the lead vehicle and the length of each following vehicle;

[0009] Determine the safe distance between each following vehicle and the vehicle in front;

[0010] The length of the virtual train is analyzed according to the spacing function of the speed changes of the following cars, the length of the leading car, the length of each following car and the safe distance between each following car and its leading car.

[0011] According to the overall length of the virtual train, the operating capacity of the virtual train is analyzed.

[0012] Optionally, determining a safe distance between each following vehicle and the vehicle in front of it includes:

[0013] Determine the emergency braking rate and speed of each following vehicle, and determine the emergency braking rate and speed of the vehicle preceding each following vehicle;

[0014] Determine the safe distance between each following vehicle and the vehicle ahead of it according to the emergency braking rate and speed of each following vehicle and the emergency braking rate and speed of the vehicle ahead of each following vehicle;

[0015] Among them, for any column of following vehicles and the safety distance between the vehicle in front

[0016] i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle, and

[0017] Optionally, the speed change of any following vehicle can be expressed as

[0018] Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle.

[0019] Optionally, the entire length of the virtual marshaled train is analyzed according to the spacing function of the speed change of each following car, the length of the leading car, the length of each following car, and the safety distance between each following car and its leading car, including:

[0020] Analyze the length of virtual trains

[0021] Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

[0022] Optionally, the operation capability of the virtual marshaling train is analyzed according to the entire length of the virtual marshaling train, including:

[0023] Analyze the operational capability of virtual train sets

[0024] Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

[0025] Optionally, T D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

[0026] Optionally, the method further comprises:

[0027] According to the interval function of the speed change of each following vehicle, the interval of receiving vehicles at the down platform, the interval of trains leaving the return track and the interval of trains leaving the up platform are analyzed;

[0028] The maximum value among the down platform train receiving interval, the reversing track departure interval and the up platform departure interval is taken as the reversing capacity of the virtual marshaling train.

[0029] In a second aspect of the present application, a running capacity analysis device for a virtual marshaling train is provided, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains;

[0030] The device includes:

[0031] The first determination module is used to determine the length of the leading vehicle and the length of each following vehicle;

[0032] The second determination module is used to determine the safe distance between each following vehicle and the vehicle in front of it;

[0033] A first analysis module is used to analyze the vehicle length of the virtual marshaled train according to the spacing function of the speed change of each following vehicle, the vehicle length of the leading vehicle determined by the first determination module, the vehicle length of each following vehicle and the safety distance between each following vehicle and its leading vehicle determined by the second determination module;

[0034] The second analysis module is used to analyze the operation capacity of the virtual train formation according to the whole length of the virtual train formation obtained by the first analysis module.

[0035] In a third aspect of the present application, an electronic device is provided, including:

[0036] Memory;

[0037] Processor; and

[0038] Computer programs;

[0039] The computer program is stored in the memory and is configured to be executed by the processor to implement the method as described in the first aspect above.

[0040] In a fourth aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored; the computer program is executed by a processor to implement the method described in the first aspect above.

[0041] The present application provides a method, device, equipment, and medium for analyzing the operating capacity of a virtual marshaling train, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains; the method includes: determining the length of the leading train and the length of each following train; determining the safe distance between each following train and its preceding train; analyzing the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safe distance between each following train and its preceding train; analyzing the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train. The method provided by the present application analyzes the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safe distance between each following train and its preceding train, and then analyzes the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train, thereby realizing a quantitative analysis of the operating capacity of a train control system based on the principle of virtual marshaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0043] Figure 1A schematic diagram of a flow chart of a method for analyzing the operating capacity of a virtual marshaled train provided in an embodiment of the present application;

[0044] Figure 2 A schematic diagram of the floating range of emergency braking rate of trains before and after a virtual marshaling provided in an embodiment of the present application;

[0045] Figure 3 A schematic diagram of the entire length of a virtual marshaled train provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the operating capability of a virtual marshaling train provided in an embodiment of the present application;

[0047] Figure 5 A schematic diagram of a turnaround capability scenario of a virtual marshaling train provided in an embodiment of the present application;

[0048] Figure 6 A schematic diagram of the structure of a device for analyzing the operating capability of a virtual train set provided in an embodiment of the present application;

[0049] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0051] In the process of implementing this application, the inventor found that by dynamically adjusting the train formation mode online, efficient use of resources such as vehicles and accurate matching of passenger flow and vehicle flow can be achieved, which is an important means to achieve energy conservation, carbon reduction and efficiency improvement of urban rail transit, and can effectively increase the proportion of urban rail transit travel, thereby providing better transportation services. At present, it is impossible to analyze the operating capacity of the train control system based on the principle of virtual formation.

[0052] In view of the above problems, the embodiment of the present application provides a method, device, equipment, and medium for analyzing the operating capacity of a virtual marshaling train, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains; the method includes: determining the length of the leading train and the length of each following train; determining the safe distance between each following train and its leading train; analyzing the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safe distance between each following train and its leading train; analyzing the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train. The method provided by the present application analyzes the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safe distance between each following train and its leading train, and then analyzes the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train, thereby realizing the quantitative analysis of the operating capacity of the train control system based on the principle of virtual marshaling.

[0053] This embodiment provides a method for analyzing the operating capacity of a virtual train formation, which is used to analyze the operating capacity of a virtual train formation.

[0054] The virtual train consists of multiple trains, one of which is the leading train and the other trains are the following trains.

[0055] For example, the entire vehicle of a virtual train consists of two three-carriage trains, one of which is a leading train and the other is a following train.

[0056] Each train set has a fixed marshaling, such as each carriage in a 3-train set has a fixed marshaling.

[0057] See also Figure 1 The implementation process of the virtual train operation capability analysis method provided in this embodiment is as follows:

[0058] 101. Determine the length of the leading vehicle and the length of each following vehicle.

[0059] The length of the train is determined after the fixed formation of the leading train and the following trains is completed. Here, the relevant train length information can be obtained. For example, the length L of the leading train is determined in step 101. F , the length of each following car Among them, i is the following vehicle identifier, is the length of the following vehicle in the i-th column.

[0060] For example, a virtual train consists of two 3-carriage trains, one of which is a leading train and the other is a following train. Therefore, in step 101, the length L of the leading train is determined.F , the length of the following vehicle L B .

[0061] 102, determine the safe distance between each following vehicle and its preceding vehicle.

[0062] In this step, the emergency braking rate and speed of each following vehicle can be determined first, and the emergency braking rate and speed of the vehicle preceding each following vehicle can be determined. Then, the safety distance between each following vehicle and the vehicle preceding it can be determined based on the emergency braking rate and speed of each following vehicle and the emergency braking rate and speed of the vehicle preceding it.

[0063] For any following vehicle (such as the i-th following vehicle, each following vehicle has one train unit), the safety distance is the safety protection distance that can ensure that the i-th following vehicle does not collide with it. The safety distance is the minimum insurmountable distance between the i-th following vehicle and the vehicle in front of it. A certain safety protection distance (i.e., safety distance) must be ensured between the i-th following vehicle and the vehicle in front of it to prevent the i-th following vehicle from colliding with the vehicle in front of it in any emergency. The safety distance is determined by the emergency braking rate of the i-th following vehicle and the vehicle in front of it.

[0064] The safe distance between any following vehicle and its preceding vehicle

[0065] i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle.

[0066] In addition, the emergency braking rate of the front car of the i-th train must be smaller than the emergency braking rate of the i-th train, so as to ensure that the i-th train can stop behind the front car of the i-th train in time under any circumstances to ensure that the two trains will not collide.

[0067] In addition, during the actual operation of the train, the emergency braking rate cannot be a constant value and will fluctuate within a certain range, such as Figure 2 shown. Figure 2 The rear vehicle in the equation is any following vehicle, and the front vehicle is the front vehicle of any following vehicle. The front vehicle of the i-th following vehicle and the i-th following vehicle are not synchronized during the parking phase, which leads to the error distance between the trains (i.e., the distance traveled by the rear vehicle (i.e., the i-th following vehicle) during the braking process caused by the maximum communication delay between the front and rear trains). Therefore, in actual operation,

[0068] Among them, t yis the communication time, such as t y is 5 consecutive communication cycles (e.g. 1 second). The speed of the i-th following vehicle at the platform Below 2km / h (kilometers per hour).

[0069] For example, a virtual train consists of two 3-carriage trains, one of which is a leading train and the other is a following train. Therefore, the safe distance between the following train and its preceding train (i.e., the leading train) is determined in step 102. Among them, v B is the speed of the following train in a virtual train consisting of two three-train sets, v F is the speed of the leading train in a virtual train consisting of two three-train trains, E B is the emergency braking rate of the following train in a virtual train consisting of two three-train sets, E F is the emergency braking rate of the leading car in a virtual train consisting of two three-carriage trains, and E F <E B .

[0070] 103. Analyze the vehicle length of the virtual train formation according to the spacing function of the speed change of each following vehicle, the length of the leading vehicle, the length of each following vehicle, and the safety distance between each following vehicle and its leading vehicle.

[0071] Among them, the speed change interval function of any following vehicle is related to the speed of any following vehicle and its preceding vehicle.

[0072] Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle.

[0073] When each train set is running in a virtual coupling mode, all train sets will be equivalent to running as a virtual train set. Each train set needs to consider a certain protective distance, such as Figure 3 The desired spacing is shown in Figure 1. This distance is considered to be a protective distance that can ensure that train units (such as the lead car and each following car) can avoid collision. The actual spacing between train units (i.e., the distance between each following car and its leading car) must be greater than this protective distance, otherwise the emergency brake will be output immediately to slow down the following car to a stop. Therefore, the length of the virtual train is determined by the length of the lead car L. F , the length of each following vehicle The protective distance between each following vehicle and the vehicle in front Determine, that is

[0074] The protection distance between two trains in a virtual train formation changes with the speed of the train. The higher the speed, the greater the distance, and the lower the speed, the smaller the distance. Therefore, the protection distance of the i-th train following the train is is based on and Determine, that is

[0075] Therefore, the length of the virtual train is analyzed based on the speed change of each following car, the length of the leading car, the length of each following car and the safety distance between each following car and its leading car.

[0076] Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

[0077] Taking the virtual train consisting of two 3-carriage trains, one of which is the leading train and the other is the following train as an example, the safe distance between the following train and its preceding train (i.e. the leading train) is The distance function of the following vehicle's speed change Protection distance of following vehicle L DY =L min +F(v B ), the length of the virtual train set

[0078] At this time, the leading vehicle is in an insurmountable position relative to the following vehicle, and the speed of the leading vehicle can be equivalent to the insurmountable emergency braking triggering speed.

[0079] 104. Analyze the operating capacity of the virtual train set according to the overall length of the virtual train set.

[0080] The minimum safe interval between the leading train and the following train in a virtual marshaling train is the upper limit of the virtual marshaling's operating capacity: the leading train departs from the platform to the end of the safety protection section, and the following train enters the station at the maximum allowable operating speed of the section. The distance from the station stop is equal to the train braking distance plus the distance the train travels during the braking reaction time. Figure 4 Therefore, the operating capacity of the virtual train set is T =

[0081]

[0082] Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, the platform tracking interval is an important technical parameter affecting the throughput capacity, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

[0083] Among them, T D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

[0084] For example, the stop time of a virtual train at the platform is calculated by the door opening and closing synchronization method. Since the virtual train has a 4-second stop error when entering the station and a 1-second start error when leaving the station, the stop time is increased by 5s (seconds) compared with the traditional fixed train. Therefore, α can be 5s, and T D =T0+5 seconds.

[0085] In addition, the method for analyzing the operating capacity of a virtual marshaling train provided in this embodiment will also analyze the reentry capacity of the virtual marshaling train.

[0086] The analysis of the reversing capability of virtual trains can be divided into three stages (taking the reversing station after the next station as an example), including the down platform train receiving interval, the reversing track departure interval and the up platform departure interval. Figure 5 As shown. The down platform train receiving interval refers to the time interval between the front virtual marshaling train and the rear virtual marshaling train entering the platform before the reversal. The reversing track departure interval refers to the time interval between the front virtual marshaling train and the rear virtual marshaling train departing from the reversing track. The up platform departure interval refers to the departure interval between the front virtual marshaling train and the rear virtual marshaling train from the platform after the reversal. The reversing interval of the train after the station can be the maximum of these three intervals. In essence, the interval of each stage refers to the spacing function of the speed change of each following vehicle. Just take the largest one.

[0087] Therefore, when analyzing the reversing capacity of a virtual marshaling train, the down platform receiving interval, the reversing rail departure interval, and the up platform departure interval can be analyzed according to the interval function of the speed change of each following car. The maximum value among the down platform receiving interval, the reversing rail departure interval, and the up platform departure interval is taken as the reversing capacity of the virtual marshaling train.

[0088] Virtual marshaling technology is the development direction of the next generation of rail transit train operation control system. The train operates normally in the form of virtual marshaling, which effectively solves the problem of effective matching of passenger flow and vehicle resources under tidal passenger flow, large and small routes, peak and flat peak conditions. The whole vehicle length L of the virtual marshaling train obtained by the analysis of the operating capacity analysis method of the virtual marshaling train provided in this embodiment is T , the operating capacity of the virtual train set T, the emergency braking rate of the leading train E F , Emergency braking rate of the following vehicle The traction acceleration a and braking reaction time T of the virtual train R , communication time t y Etc. determine the upper limit of the operating capacity of the virtual train formation, which can be used to guide the relevant professional design of the subway construction unit, the traffic organization and departure interval of the subway operating unit.

[0089] The present embodiment provides a method for analyzing the operating capacity of a virtual marshaling train, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains; the method determines the length of the leading train and the length of each following train; determines the safety distance between each following train and its preceding train; analyzes the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safety distance between each following train and its preceding train; analyzes the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train. The method provided in the present embodiment analyzes the entire length of the virtual marshaling train according to the spacing function of the speed change of each following train, the length of the leading train, the length of each following train, and the safety distance between each following train and its preceding train, and then analyzes the operating capacity of the virtual marshaling train according to the entire length of the virtual marshaling train, thereby realizing a quantitative analysis of the operating capacity of a train control system based on the principle of virtual marshaling.

[0090] Based on the same inventive concept of the method for analyzing the operating capacity of a virtual marshaling train, this embodiment provides an operating capacity analysis device for a virtual marshaling train, wherein the entire train of the virtual marshaling train is composed of multiple marshaling trains; wherein one marshaling train is a leading train, and the remaining marshaling trains are all following trains;

[0091] See also Figure 6 , the device comprises:

[0092] The first determination module 601 is used to determine the length of the leading vehicle and the length of each following vehicle.

[0093] The second determining module 602 is used to determine the safe distance between each following vehicle and the vehicle in front of it.

[0094] The first analysis module 603 is used to analyze the entire length of the virtual train set according to the spacing function of the speed changes of each following car, the length of the leading car determined by the first determination module 601, the length of each following car and the safety distance between each following car and its leading car determined by the second determination module 602.

[0095] The second analysis module 604 is used to analyze the operation capacity of the virtual train formation according to the entire length of the virtual train formation obtained by the first analysis module 603.

[0096] The second determination module 602 is used to determine the emergency braking rate and speed of each following vehicle, and the emergency braking rate and speed of the vehicle preceding each following vehicle. The safety distance between each following vehicle and the vehicle preceding it is determined based on the emergency braking rate and speed of each following vehicle, and the emergency braking rate and speed of the vehicle preceding it.

[0097] Among them, for any column of following vehicles and the safety distance between the vehicle in front

[0098] i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle, and

[0099] Among them, the spacing function of the speed change of any following vehicle is

[0100] Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle.

[0101] The first analysis module 603 is used to analyze the length of the virtual train.

[0102] Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

[0103] The second analysis module 604 is used to analyze the operating capacity of the virtual train.

[0104] Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

[0105] Among them, T D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

[0106] The device further includes: a third analysis module, which is used to analyze the down platform pick-up interval, the reversing rail departure interval and the up platform departure interval according to the interval function of the speed change of each follower vehicle, and take the maximum value of the down platform pick-up interval, the reversing rail departure interval and the up platform departure interval as the reversing capacity of the virtual marshaling train.

[0107] The device provided in this embodiment analyzes the entire length of the virtual marshaling train based on the spacing function of the speed changes of each following car, the length of the leading car, the length of each following car and the safety distance between each following car and the car in front of it, and then analyzes the operating capacity of the virtual marshaling train based on the entire length of the virtual marshaling train, thereby realizing a quantitative analysis of the operating capacity of the train control system based on the principle of virtual marshaling.

[0108] Based on the same inventive concept of the method for analyzing the operating capacity of a virtual train assembly, this embodiment provides an electronic device, such as Figure 7 As shown, it includes: a memory 701, a processor 702, and a computer program.

[0109] The computer program is stored in the memory 701 and is configured to be executed by the processor 702 to implement the above-mentioned method for analyzing the operating capacity of the virtual train set.

[0110] The entire train of the virtual marshaling train involved in the operation capacity analysis method of the virtual marshaling train is composed of multiple marshaling trains, one of which is the leading train and the other marshaling trains are the following trains.

[0111] Specifically, the operating capacity analysis method of the virtual marshaling train includes:

[0112] Determine the length of the lead vehicle and the length of each following vehicle.

[0113] Determine the safe distance between each following vehicle and the vehicle in front.

[0114] The vehicle length of the virtual marshaled train is analyzed based on the spacing function of the speed changes of each following vehicle, the length of the leading vehicle, the length of each following vehicle and the safe distance between each following vehicle and its leading vehicle.

[0115] According to the overall length of the virtual train, the operating capacity of the virtual train is analyzed.

[0116] Optionally, determining a safe distance between each following vehicle and the vehicle in front of it includes:

[0117] The emergency braking rate and vehicle speed of each following vehicle are determined, and the emergency braking rate and vehicle speed of the vehicle preceding each following vehicle are determined.

[0118] The safe distance between each following vehicle and the vehicle ahead of it is determined based on the emergency braking rate and vehicle speed of each following vehicle and the emergency braking rate and vehicle speed of the vehicle ahead of each following vehicle.

[0119] Among them, for any column of following vehicles and the safety distance between the vehicle in front

[0120] i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the vehicle preceding the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle, and

[0121] Optionally, the speed change of any following vehicle can be expressed as

[0122] Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the vehicle preceding the i-th following vehicle, is the speed of the i-th following vehicle.

[0123] Optionally, the entire length of the virtual marshaled train is analyzed according to the spacing function of the speed change of each following car, the length of the leading car, the length of each following car, and the safety distance between each following car and its leading car, including:

[0124] Analyze the length of virtual trains

[0125] Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

[0126] Optionally, the operation capability of the virtual marshaling train is analyzed according to the entire length of the virtual marshaling train, including:

[0127] Analyze the operational capability of virtual train sets

[0128] Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

[0129] Optionally, t D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

[0130] Optionally, the method further comprises:

[0131] According to the spacing function of the speed change of each following vehicle, the down platform receiving interval, the return track departure interval and the up platform departure interval are analyzed.

[0132] The maximum value among the down platform train receiving interval, the reversing track departure interval and the up platform departure interval is taken as the reversing capacity of the virtual marshaling train.

[0133] The electronic device provided by this embodiment has a computer program executed by a processor to analyze the entire length of the virtual train according to the spacing function of the speed changes of each following car, the length of the leading car, the length of each following car and the safety distance between each following car and the car in front of it, and then analyze the operating capacity of the virtual train according to the entire length of the virtual train, thereby realizing a quantitative analysis of the operating capacity of the train control system based on the principle of virtual marshaling.

[0134] Based on the same inventive concept of the method for analyzing the operating capacity of a virtual train assembly, this embodiment provides a computer-readable storage medium, and a computer program is stored thereon. The computer program is executed by a processor to implement the method for analyzing the operating capacity of a virtual train assembly.

[0135] The entire train of the virtual marshaling train involved in the operation capacity analysis method of the virtual marshaling train is composed of multiple marshaling trains, one of which is the leading train and the other marshaling trains are the following trains.

[0136] Specifically, the operating capacity analysis method of the virtual marshaling train includes:

[0137] Determine the length of the lead vehicle and the length of each following vehicle.

[0138] Determine the safe distance between each following vehicle and the vehicle in front.

[0139] The vehicle length of the virtual marshaled train is analyzed based on the spacing function of the speed changes of each following vehicle, the length of the leading vehicle, the length of each following vehicle and the safe distance between each following vehicle and its leading vehicle.

[0140] According to the overall length of the virtual train, the operating capacity of the virtual train is analyzed.

[0141] Optionally, determining a safe distance between each following vehicle and the vehicle in front of it includes:

[0142] The emergency braking rate and vehicle speed of each following vehicle are determined, and the emergency braking rate and vehicle speed of the vehicle preceding each following vehicle are determined.

[0143] The safe distance between each following vehicle and the vehicle ahead of it is determined based on the emergency braking rate and vehicle speed of each following vehicle and the emergency braking rate and vehicle speed of the vehicle ahead of each following vehicle.

[0144] Among them, for any column of following vehicles and the safety distance between the vehicle in front

[0145] i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle, and

[0146] Optionally, the speed change of any following vehicle can be expressed as

[0147] Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the preceding vehicle of the i-th following vehicle, is the speed of the i-th following vehicle.

[0148] Optionally, the entire length of the virtual marshaled train is analyzed according to the spacing function of the speed change of each following car, the length of the leading car, the length of each following car, and the safety distance between each following car and its leading car, including:

[0149] Analyze the length of virtual trains

[0150] Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

[0151] Optionally, the operation capability of the virtual marshaling train is analyzed according to the entire length of the virtual marshaling train, including:

[0152] Analyze the operational capability of virtual train sets

[0153] Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

[0154] Optionally, T D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

[0155] Optionally, the method further comprises:

[0156] According to the spacing function of the speed change of each following vehicle, the down platform receiving interval, the return track departure interval and the up platform departure interval are analyzed.

[0157] The maximum value among the down platform train receiving interval, the reversing track departure interval and the up platform departure interval is taken as the reversing capacity of the virtual marshaling train.

[0158] The computer-readable storage medium provided in this embodiment has a computer program executed by a processor to analyze the entire vehicle length of the virtual marshaling train according to the spacing function of the speed changes of each following vehicle, the length of the leading vehicle, the length of each following vehicle and the safety distance between each following vehicle and the vehicle in front of it, and then analyze the operating capacity of the virtual marshaling train according to the entire vehicle length of the virtual marshaling train, thereby realizing a quantitative analysis of the operating capacity of the train control system based on the principle of virtual marshaling.

[0159] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0160] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0161] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0162] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0163] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0164] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for analyzing the operating capacity of a virtual train, characterized in that: The whole vehicle of the virtual train consists of multiple trains, one of which is the leading train and the other trains are the following trains. The method comprises: Determine the length of the lead vehicle and the length of each following vehicle; Determine the safe distance between each following vehicle and the vehicle in front; Analyzing the vehicle length of the virtual marshaled train according to the spacing function of the speed change of each following vehicle, the length of the leading vehicle, the length of each following vehicle, and the safety distance between each following vehicle and its leading vehicle; The operation capacity of the virtual train set is analyzed according to the entire length of the virtual train set.

2. The method according to claim 1, characterized in that Determining the safe distance between each following vehicle and the vehicle in front of it includes: Determine the emergency braking rate and speed of each following vehicle, and determine the emergency braking rate and speed of the vehicle preceding each following vehicle; Determine the safe distance between each following vehicle and the vehicle ahead of it according to the emergency braking rate and speed of each following vehicle and the emergency braking rate and speed of the vehicle ahead of each following vehicle; Among them, for any column of following vehicles and the safety distance between the vehicle in front i is the following vehicle identifier, is the safe distance between the i-th following vehicle and its preceding vehicle, is the speed of the vehicle preceding the i-th following vehicle, is the speed of the i-th following vehicle, is the emergency braking rate of the leading vehicle in the i-th column of following vehicles, is the emergency braking rate of the i-th following vehicle, and 3. The method according to claim 1, characterized in that The speed change of any following vehicle is Among them, i is the following vehicle identifier, is the speed change interval function of the i-th column of following vehicles, t is the time variable, is the speed of the vehicle preceding the i-th following vehicle, is the speed of the i-th following vehicle.

4. The method according to claim 1, characterized in that The analyzing the vehicle length of the virtual marshaled train according to the spacing function of the speed change of each following vehicle, the length of the leading vehicle, the length of each following vehicle and the safety distance between each following vehicle and its leading vehicle comprises: Analyze the length of the virtual train Among them, L T is the length of the virtual train set, L F is the length of the leading vehicle, i is the identifier of the following vehicle, is the length of the i-th following car, is the safe distance between the i-th following vehicle and its preceding vehicle, is the spacing function of the speed change of the i-th column of following vehicles, is the speed of the i-th following vehicle.

5. The method according to claim 1, characterized in that The analyzing the operation capability of the virtual marshaling train according to the entire train length of the virtual marshaling train comprises: Analyze the operational capability of the virtual train set Among them, T is the operating capacity of the virtual train, i is the following train identifier, L s is the safety protection distance of the virtual train formation, L T is the length of the virtual train, V max is the maximum operating speed of the section, a is the traction acceleration of the virtual marshaling train, T R is the braking reaction time, T D is the stop time of the virtual train, and b is the braking deceleration of the virtual train.

6. The method according to claim 5, characterized in that T D =T0+α, T0 is the stop time of fixed marshaling, α is the time deviation of virtual marshaling.

7. The method according to claim 1, characterized in that The method further comprises: According to the interval function of the speed change of each following vehicle, the interval of receiving vehicles at the down platform, the interval of departure of the return track and the interval of departure of the up platform are analyzed; The maximum value among the down platform train receiving interval, the reversing track train departure interval and the up platform train departure interval is taken as the reversing capacity of the virtual marshaled train.

8. A device for analyzing the operating capacity of a virtual train, characterized in that: The whole train of the virtual train consists of multiple trains, one of which is the leading train and the other trains are the following trains. The device comprises: The first determination module is used to determine the length of the leading vehicle and the length of each following vehicle; The second determination module is used to determine the safe distance between each following vehicle and the vehicle in front of it; a first analysis module, configured to analyze the vehicle length of the virtual marshaled train according to a spacing function of the speed changes of the following vehicles, the vehicle length of the leading vehicle determined by the first determination module, the vehicle length of each following vehicle, and the safety distance between each following vehicle and its leading vehicle determined by the second determination module; The second analysis module is used to analyze the operation capacity of the virtual train formation according to the whole train length of the virtual train formation obtained by the first analysis module.

9. An electronic device, characterized in that: include: Memory; processor; as well as Computer programs; The computer program is stored in the memory and is configured to be executed by the processor to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon; the computer program is executed by a processor to implement the method according to any one of claims 1 to 7.

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