Calculation method and application of arrival and departure line capacity of heavy-haul railway combination and decomposition station

Abstract

The invention relates to the technical field of heavy-haul railways, and discloses a method and application for calculating the through-capacity of an arrival and departure line of a heavy-haul railway combination and decomposition station. The method comprises the following steps: classifying infrastructure data according to station yard receiving and dispatching track sections and the use principle of the arrival and dispatching line, loading the infrastructure data to obtain the arrival and dispatching line occupation time of heavy-haul railway trains; calculating the heavy-haul railway combination and decomposition station according to different track sections of the same track respectively, taking the annual skylight and the through-capacity in different directions into consideration, and solving the through-capacity of the arrival and dispatching line on non-skylight days and the through-capacity of the arrival and dispatching line on skylight days respectively; effectively improving the calculation accuracy of the through-capacity of the arrival and dispatching line of the heavy-haul railway combination and decomposition station, thereby providing a basis for formulating a transportation organization plan for full-time operation of station receiving and dispatching trains; and solving the technical problem of low accuracy of the calculation result of the through-capacity of the arrival and dispatching line of the heavy-haul railway combination and decomposition station in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of heavy-haul railways, and in particular to a method for calculating the throughput capacity of an arrival and departure line of a heavy-haul railway combination and decomposition station and its application. Background Art

[0002] The throughput capacity of the arrival and departure line refers to the number of freight / passenger trains that can be received and dispatched in each direction and as specified in the operation diagram in a day and night by adopting reasonable technical operation processes and fixed line use plans, which are handled by the arrival yard, departure yard, passing yard or the line within the arrival and departure yard.

[0003] At present, there are generally two methods for calculating the capacity of railway station arrival and departure lines: the graphical method and the direct calculation method. The graphical method is based on the train operation diagram of the adjacent sections of the station and the fixed use plan of the station's technical equipment. The station's technical operation process and operation time standards and other relevant information are used to draw charts of the operation processes such as train reception and departure, train disassembly, assembly, marshalling, and locomotive entry and exit, so as to obtain the capacity of various equipment in the station. The direct calculation method is to calculate the capacity of the arrival and departure line based on the average time that each train arrival and departure operation and reorganization operation occupies a certain equipment.

[0004] However, in the process of implementing the technical solution of the invention in the embodiment of the present application, the inventors of the present application found that the above technical solution has at least the following technical problems:

[0005] Since only one train stops on each track of a traditional railway station and the traffic density is low, the track setting of heavy-duty railway stations is different. It is generally designed according to the principle of "three lines and one bundle". The middle track is the locomotive running line, and the tracks on both sides are the arrival and departure tracks. The arrival and departure track is divided into two sections, AB and CD, according to the operation of receiving and sending trains. Each section can receive and send different types of heavy-duty trains. The traffic density of heavy-duty railways is high, and the skylight is set according to the vertical skylight. The graphical method has a large workload, time-consuming and labor-intensive when calculating the arrival and departure capacity of heavy-duty railway stations with high traffic density and a large number of tracks. Due to the differences in the experience of the map editors, the quality of the daily plan map compiled is uneven, and the accuracy of the graphical calculation is difficult to guarantee. The direct calculation method cannot calculate the arrival and departure line capacity of the two sections of the same track of the heavy-duty railway combined decomposition station separately, and the skylight time is not taken into account. The calculation result is quite different from the actual capacity.

[0006] Therefore, the existing railway station arrival and departure line capacity calculation method is applied to the arrival and departure line capacity calculation of heavy-duty railway combination and decomposition stations. The calculation result has low accuracy and cannot meet the existing capacity verification needs. Summary of the invention

[0007] The present invention aims to propose a method and application for calculating the through-capacity of the arrival and departure lines of a heavy-load railway combination and decomposition station, calculate the heavy-load railway combination and decomposition station separately according to different track sections of the same track, and take the annual skylight and the through-capacity in different directions into consideration, thereby effectively improving the calculation accuracy of the through-capacity of the arrival and departure lines of the heavy-load railway combination and decomposition station, thereby providing a basis for formulating a transportation organization plan for the station to receive and dispatch trains at full schedule operation; and solves the technical problem of low accuracy of the calculation result of the through-capacity of the arrival and departure lines of the heavy-load railway combination and decomposition station in the prior art.

[0008] The above invention objectives are mainly achieved through the following technical solutions:

[0009] First, the calculation method of the arrival and departure line capacity of the heavy-haul railway combination and decomposition station includes:

[0010] Obtain the infrastructure data of heavy-haul railways, and classify the infrastructure data according to the station receiving and dispatching track sections and the use principles of arrival and departure lines to obtain the target infrastructure data;

[0011] According to the loading target infrastructure data, the arrival and departure line occupancy time of heavy-load railway trains is obtained;

[0012] The first arrival-and-departure line capacity of the heavy-haul railway combination decomposition station is calculated based on the heavy-haul railway train heavy-load type, occupied track section, empty fee coefficient and arrival-and-departure line occupancy time, and the second arrival-and-departure line capacity of the heavy-haul railway combination decomposition station is calculated based on the heavy-haul railway window opening type, opening time, train heavy-load type, occupied track section, empty fee coefficient and arrival-and-departure line occupancy time, the first arrival-and-departure line capacity represents the arrival-and-departure line capacity on non-window days, and the second arrival-and-departure line capacity represents the arrival-and-departure line capacity on window days.

[0013] In the second aspect, the arrival and departure line throughput capacity calculation device of the heavy-haul railway combination and decomposition station includes:

[0014] Acquisition module: used to obtain infrastructure data of heavy-haul railways;

[0015] Classification module: used for receiving the infrastructure data sent by the acquisition module, and classifying the infrastructure data according to the station receiving and dispatching track section and the arrival and departure line usage principle to obtain the target infrastructure data;

[0016] Arrival and departure line occupancy time module: used for receiving the target infrastructure data sent by the classification module, and obtaining the arrival and departure line occupancy time of the heavy-load railway train according to the target infrastructure data;

[0017] The first calculation module is used to solve the first arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway train heavy-haul type, occupied track section, empty fee coefficient and arrival and departure line occupation time;

[0018] The second calculation module is used to solve the second arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway skylight opening type, opening time, train heavy-load type, occupied track section, empty fee coefficient and arrival and departure line occupation time;

[0019] The first passing capacity to the departure line represents the passing capacity to the departure line on a non-skylight day, and the second passing capacity to the departure line represents the passing capacity to the departure line on a skylight day.

[0020] In a third aspect, an electronic device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method for calculating the arrival and departure line throughput capacity of a heavy-load railway combination and decomposition station as described above are implemented.

[0021] In a fourth aspect, a computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for calculating the throughput capacity of the arrival and departure lines of a heavy-duty railway combination and decomposition station as described above.

[0022] In a fifth aspect, a computer program product is provided, which, when running on a processor, implements the steps of the above-mentioned method for calculating the arrival and departure line throughput capacity of a heavy-haul railway combination and decomposition station.

[0023] The beneficial effects compared with the prior art are as follows: the present invention classifies the infrastructure data according to the station receiving and dispatching track sections and the use principles of the arrival and departure lines, loads the infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains; calculates the heavy-load railway combination and decomposition station according to different track sections of the same track, and takes the annual window and the throughput capacity in different directions into consideration, and solves the arrival and departure line throughput capacity on non-window days and the arrival and departure line throughput capacity on window days respectively; effectively improves the calculation accuracy of the arrival and departure line throughput capacity of the heavy-load railway combination and decomposition station, thereby providing a basis for formulating the transportation organization plan for the station receiving and dispatching trains at full operation; solves the technical problem of low accuracy of the calculation result of the arrival and departure line throughput capacity of the heavy-load railway combination and decomposition station in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the connection of each direction of Shenchi South Station provided by an embodiment of the present invention;

[0025] Figure 2 A schematic flow chart of a method for calculating the throughput capacity of an arrival and departure line of a heavy-haul railway combination and decomposition station provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a device for calculating the throughput capacity of an arrival and departure line of a heavy-haul railway combination and decomposition station provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] The embodiment of the present invention will be described by taking the Shenchi South Station of Shuohuang Railway as an example. The Shenchi South Station of Shuohuang Railway is the boundary station of Baoshen Railway, Xinshuo Railway and Shuohuang Railway. It mainly handles the reception and dispatching, marshaling and disassembling, locomotive replacement and vehicle technical inspection of freight trains in four directions: Nanpodi, Ningwuxi, Wochang and Shanggelao. Figure 1 As shown, the Nanpodi, Ningwuxi and Wochang directions are double-track electrified automatic blocks, and the Shanggelao direction is single-track electrified semi-automatic blocks. Yard I mainly handles empty cars arriving from the Shuohuang Railway and sent to the Baoshen Railway and Xinshuo Railway; Yard II mainly handles heavy cars arriving from the Baoshen Railway and Xinshuo Railway and sent to the Shuohuang Railway.

[0030] Embodiment 1

[0031] The calculation method of the arrival and departure line capacity of the heavy-haul railway combination and decomposition station is as follows: Figure 2 As shown, the following steps are included:

[0032] Step 1: Obtain the infrastructure data of heavy-haul railways, including the nature data of heavy-haul railway stations, the grade data of stations, and the line data for handling train reception and dispatching, shunting operations, and passenger / freight services.

[0033] Step 2: Classify the infrastructure data according to the station receiving and dispatching track sections and the use principles of the arrival and departure lines to obtain the target infrastructure data.

[0034] Step 3: Load the target infrastructure data and obtain the arrival and departure line occupancy time of heavy-load railway trains.

[0035] Step 4: Based on the heavy-load type of heavy-load railway trains, occupied track sections, empty fee coefficients, and arrival and departure line occupancy time, the first arrival and departure line capacity of the heavy-load railway combination decomposition station is solved, and based on the heavy-load railway window opening type, opening time, train heavy-load type, occupied track sections, empty fee coefficients, and arrival and departure line occupancy time, the second arrival and departure line capacity of the heavy-load railway combination decomposition station is solved. The first arrival and departure line capacity represents the arrival and departure line capacity on non-window days, and the second arrival and departure line capacity represents the arrival and departure line capacity on window days.

[0036] In a preferred embodiment, the loading of target infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains specifically includes: loading target infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains through the arrival and departure timetable of heavy-load railway trains and the opening and closing time of microcomputer interlocking signals.

[0037] In a preferred embodiment, the use principle of the arrival and departure lines is determined according to the effective length of the station track section, the station connection direction and the setting of on-site work posts.

[0038] In a preferred embodiment, the first departure line throughput capacity N1 is specifically solved by the following formula:

[0039]

[0040] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, and t0 represents the average time it takes for a train operation to occupy the equipment, in min.

[0041] In a preferred embodiment, the first delivery line throughput capacity N2 is specifically solved by the following formula:

[0042]

[0043] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, rx is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, t0 represents the average time that equipment is occupied for one train operation, in min, and T represents the total duration of the annual window time and the window idle charge time, in min. It should be noted that the window time refers to the time reserved for construction and maintenance operations in the train operation diagram without laying out train lines or adjusting or reducing train operations. The window idle charge time refers to the time reserved before and after the window to adjust train operations or meet the needs of operations such as wind testing before train operation.

[0044] Compared with the prior art, the present invention has the following beneficial effects: the present invention classifies the infrastructure data according to the station receiving and dispatching track sections and the use principles of the arrival and departure lines, loads the infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains; calculates the heavy-load railway combination and decomposition station according to different track sections of the same track, and takes the annual window time, window empty time and the throughput capacity in different directions into consideration, and solves the arrival and departure line throughput capacity on non-window days and the arrival and departure line throughput capacity on window days respectively; effectively improves the calculation accuracy of the arrival and departure line throughput capacity of the heavy-load railway combination and decomposition station, thereby providing a basis for formulating the transportation organization plan for the station receiving and dispatching trains at full operation; solves the technical problem of low accuracy of the calculation result of the arrival and departure line throughput capacity of the heavy-load railway combination and decomposition station in the prior art.

[0045] The following explanation is made by taking the above-mentioned Shenchi South Station of Shuohuang Railway as an example.

[0046] The basic situation of the equipment to the departure line is shown in the following table:

[0047]

[0048]

[0049]

[0050] I Field to departure line

[0051]

[0052]

[0053]

[0054]

[0055] II Field to departure line

[0056] Among them, the skylight settings are: In 2022, there will be 96 window days in the Shuohuang Railway throughout the year, 17 3-hour window days, and 79 4-hour window days. The skylights can be adjusted in a planned manner according to the actual needs of transportation and construction maintenance.

[0057] The train flow composition at Shenchi South Station is shown in the following table:

[0058]

[0059] Train flow composition at Shenchi South Station

[0060] The train marshaling plan for Shenchi South Station is shown in the following table:

[0061]

[0062]

[0063]

[0064]

[0065]

[0066] Train marshaling plan for Shenchi South Station

[0067] The use principle of the arrival and departure track adopts the principle of three lines in one bundle. The middle track is the locomotive running track. The use principle of the arrival and departure track is as shown in the following table:

[0068] I-Market Stock Track Train handling and usage principles I-4 C64, C700,000-ton empty truck 6-7 Ordinary train 9-10 C800,000 tons empty car 12-18 20,000 tons empty

[0069] Principles of using the I-field to departure line

[0070] II Market Track Train handling and usage principles 1-III Empty and loaded vehicles heading to Shanggelao IV Heavy trains heading to Ningwu West 6-9 1+10,000 ton heavy vehicles in Ningwu West direction 10 Ningwu West direction unit 10,000-ton train 12-21 Ningwu West direction 20,000 tons (16,000 tons) train

[0071] II. Principles of using the field to departure line

[0072] The time taken by various types of heavy-load trains to and from the track is shown in the following table:

[0073]

[0074] I yard various types of heavy-load train arrival and departure time

[0075]

[0076] II yard various types of heavy-load train arrival and departure time

[0077] The calculation of the arrival and departure line capacity N1 on non-skylight days is as follows:

[0078]

[0079] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t iIndicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, and t0 represents the average time it takes for a train operation to occupy the equipment, in min.

[0080] The throughput capacity from field I to the departure line is shown in the following table:

[0081]

[0082] The throughput capacity from field II to the departure line is shown in the following table:

[0083]

[0084] The calculation of the skylight daily arrival and departure line capacity N2 is as follows:

[0085]

[0086] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, t0 represents the average time it takes for a train operation to occupy the equipment, in min, and T represents the total duration of the annual window time and the window idle charge time, in min.

[0087] The throughput capacity from field I to the departure line (taking 4-hour skylight and 1-hour skylight idle time as an example) is shown in the following table:

[0088]

[0089] The throughput capacity from Field II to the departure line (taking 4-hour skylight and 1-hour skylight idle time as an example) is shown in the following table:

[0090]

[0091]

[0092] Finally, based on the above-mentioned capacity verification results, the practical experience of station operators in formulating and implementing station technical operations is summarized. According to the use principles of arrival and departure lines and the corresponding organizational mechanisms and adjustment systems, the complex relationships between equipment factors, traffic factors and organizational management that affect station operating capacity are tracked to achieve a full-scale simulation of station equipment utilization and operation organization. Since the I yard of Shenchi South Station of Shuohuang Railway is set as an empty yard and the II yard is set as a loaded yard, the transportation capacity is mainly reflected in the arrival and departure lines of the II yard. Therefore, this simulation test mainly simulates the non-window day capacity of the II yard. The simulation process is as follows:

[0093] Step 1: The simulation system randomly generates a train.

[0094] Step 2: When the train enters the throat area of ​​the station, determine the direction of the train. If it is heading to Ningwu West, go to step 3; if it is heading to Shang Gelao, go to step 4.

[0095] Step 3: The train enters the departure yard area according to the arrival and departure track usage principle and determines the arrival and departure track occupancy status. If track IV or track 10 AB section is idle, the train accesses the AB section and goes to step 5; otherwise, the train accesses the CD section and goes to step 5; if tracks 12-21 CD section is idle, the train enters the departure track CD section and goes to step 5; otherwise, the train accesses the combined arrival and departure track AB section and goes back to step 1.

[0096] Step 4: The train enters the departure yard area according to the principles of arrival and departure line usage, and determines the train type and arrival and departure line occupancy status. If it is connected to a general train and track 1 is idle, it connects to track 1; otherwise, if the AB section of tracks II-III is idle, the train connects to the AB section and goes to step 5; otherwise, the train connects to the CD section and goes to step 5: If it is connected to a 10,000-ton train and the AB section of tracks II-III is idle, the train connects to the AB section and goes to step 5; otherwise, the train connects to the CD section and goes to step 5.

[0097] Step 5: The train performs relevant technical operations, and the operation time is randomly generated according to the distribution.

[0098] Step 6: When a train passes through the departure throat area and enters the exit section, the number of trains decreases by 1.

[0099] In each simulation cycle, after all train states in the simulated road network system are judged, the simulation clock step advances forward, and the simulation ends when the predetermined total simulation time is reached.

[0100] According to the station configuration diagram, vehicle flow and operation organization method of Shenchi South Station II of Shuohuang Railway, and in accordance with the above simulation ideas, models and methods, the throughput capacity of Shenchi South Station was simulated and calculated.

[0101] The experimental simulation is mainly carried out for the combined operation of ordinary trains, C64 (C70) 10,000-ton trains, C800,000-ton trains, and two 10,000-ton trains combined into one 20,000-ton train. The simulation cycle is 24 hours. Before each simulation starts, the train arrival time is randomly generated. The train arrival time is determined according to the on-site statistical data. Before the simulation program starts running, a certain number of train arrival schedules are generated according to the above-mentioned Shenchi South Station train flow composition ratio, and read in sequence during the simulation. The train technical operation process is carried out in accordance with the technical operation process determined by Shenchi South Station, and the operation time is randomly generated according to the probability distribution.

[0102] Based on the realistic situation of on-site train operations at Shenchi South Station in 2021, the arrival and departure data of trains at the station and the distribution of operation times are as follows.

[0103] ① Analysis of train arrival time interval. The average time interval of train arrival is 14.5 minutes. Through statistical software analysis, the train arrival time interval basically obeys the normal distribution.

[0104] ② Train assembly operation time. According to the on-site data, the average time from the entry of the central locomotive to the completion of the assembly of the 10,000-ton and 20,000-ton trains is 22.6 minutes, of which the shortest time is 18.7 minutes and the longest time is 32.3 minutes. By using statistical software to analyze the data, it can be seen that the data roughly follows a normal distribution.

[0105] ③According to the statistics of cross-interference of various operations at the station site, the interference time caused by cross-interference approximately follows a normal distribution, with a minimum of 5 minutes, a maximum of 15 minutes, and an average interference time of 7 minutes.

[0106] When simulating train operations in the station, random cross interference is introduced. During the simulation process, various cross interferences that may occur in the station are converted into impacts on the operation time, and the interference time is added to the given operation time. Therefore, the time from the arrival of the general train to clearing the track is determined: the average time is 85.6 minutes, of which the shortest time is 62.3 minutes and the longest time is 102.6 minutes; the time from the arrival of 10,000 tons to clearing the track is determined: the average time is 110.5 minutes, of which the shortest time is 95.3 minutes and the longest time is 125.6 minutes; the time from the arrival of the second train to the clearing of the track by the 20,000-ton train is determined: the average time is 183.2 minutes, of which the shortest time is 145.8 minutes and the longest time is 235.2 minutes; through the use of statistical software analysis, the data of various types of trains roughly obey the normal distribution.

[0107] There are 15 departure and arrival lines at Shenchi South Station II (excluding locomotive lines). The capacity of train combination operation, the number of locomotives and rolling stock and the turnover time, and the window time limit of Shuohuang Railway need to be considered. The given traffic volume in each simulation is large enough, and the simulation time is set to 36 hours to obtain the traffic volume that can be passed in each simulation within the next 24 hours. According to the simulation analysis, according to the average load of locomotive traction, deducting the window time, and not considering other influencing factors, the annual traffic volume of Shenchi South Station under certain realization probability conditions is shown in the following table.

[0108] The simulation results under different traffic volumes are as follows:

[0109]

[0110] According to the analysis, with the increase of traffic volume, especially the increase of 20,000-ton trains, the probability of achieving this goal gradually decreases. By improving the traffic structure, optimizing the use of the arrival and departure lines, and compressing the technical operation time, it is possible to achieve a medium probability of 26 million tons of transportation volume in the Shanggelao direction and 363 million tons in the Ningwu West direction, totaling 389 million tons. If the capacity of the arrival and departure lines needs to be further improved, the equipment needs to be expanded and renovated.

[0111] On the basis of the above-mentioned non-skylight and skylight capacities of the arrival and departure lines, a computer simulation test was conducted on the realization probability of the arrival and departure line capacity of the train combination decomposition station of the heavy-duty railway station type, and the complex relationship between the equipment factors, traffic factors and organizational management that affect the station's operating capacity was tracked, and the optimal station capacity result was obtained through analysis.

[0112] Embodiment 2

[0113] The device for calculating the throughput capacity of the arrival and departure lines of the heavy-haul railway combination and decomposition station, such as Figure 3 As shown, including:

[0114] Acquisition module: used to obtain infrastructure data of heavy-haul railways;

[0115] Classification module: used for receiving the infrastructure data sent by the acquisition module, and classifying the infrastructure data according to the station receiving and dispatching track section and the arrival and departure line usage principle to obtain the target infrastructure data;

[0116] Arrival and departure line occupancy time module: used for receiving the target infrastructure data sent by the classification module, loading the target infrastructure data, and obtaining the arrival and departure line occupancy time of heavy-load railway trains;

[0117] The first calculation module is used to solve the first arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway train heavy-haul type, occupied track section, empty fee coefficient and arrival and departure line occupation time;

[0118] The second calculation module is used to solve the second arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway skylight opening type, opening time, train heavy-load type, occupied track section, empty fee coefficient and arrival and departure line occupation time;

[0119] The first passing capacity to the departure line represents the passing capacity to the departure line on a non-skylight day, and the second passing capacity to the departure line represents the passing capacity to the departure line on a skylight day.

[0120] In a preferred embodiment, the infrastructure data includes property data of heavy-haul railway stations, grade data of stations, and line data for handling train reception and dispatching, shunting operations, and passenger / freight services.

[0121] In a preferred embodiment, the arrival and departure line occupancy time module is specifically used to: load target infrastructure data, and obtain the arrival and departure line occupancy time of heavy-load railway trains through the heavy-load railway train arrival and departure timetable and the opening and closing time of the microcomputer interlocking signal.

[0122] In a preferred embodiment, the classification module is specifically used to determine the use principle of the arrival and departure lines according to the effective length of the station track section, the station connection direction and the setting of on-site work posts.

[0123] In a preferred embodiment, the first calculation module is specifically used to solve the first departure line throughput capacity N1 by the following formula:

[0124]

[0125] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, and t0 represents the average time it takes for a train operation to occupy the equipment, in min.

[0126] In a preferred embodiment, the second calculation module is specifically used to solve the first departure line throughput capacity N2 by the following formula:

[0127]

[0128] Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t iIndicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, t0 represents the average time it takes for a train operation to occupy the equipment, in min, and T represents the total duration of the annual window time and the window idle charge time, in min.

[0129] The device for calculating the throughput capacity of the arrival and departure line of the heavy-haul railway combination and decomposition station in the embodiment of the present invention corresponds to the method for calculating the throughput capacity of the arrival and departure line of the heavy-haul railway combination and decomposition station in the above embodiment, and realizes the corresponding functions. Since the steps of the method for calculating the throughput capacity of the arrival and departure line of the heavy-haul railway combination and decomposition station have been described in detail in the above embodiment, they will not be repeated in this device.

[0130] Embodiment 3

[0131] An electronic device, such as Figure 4 As shown, the device 4 includes a memory 41, a processor 42, and a computer program 43 stored in the memory 41 and executable on the processor 42. When the processor 42 executes the computer program 43, it implements part or all of the steps of the method for calculating the arrival and departure line throughput capacity of a heavy-load railway combination and decomposition station.

[0132] Embodiment 4

[0133] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements part or all of the steps of the above-mentioned method for calculating the throughput capacity of the arrival and departure lines of a heavy-duty railway combination and decomposition station.

[0134] Embodiment 5

[0135] A computer program product, when running on a processor, implements part or all of the steps of the above-mentioned method for calculating the throughput capacity of the arrival and departure lines of a heavy-haul railway combination and decomposition station.

[0136] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for calculating the throughput capacity of the arrival and departure lines of a heavy-haul railway combination and decomposition station, characterized in that: include: Obtain the infrastructure data of heavy-haul railways, and classify the infrastructure data according to the station receiving and dispatching track sections and the use principles of arrival and departure lines to obtain the target infrastructure data; Load the target infrastructure data and obtain the arrival and departure line occupancy time of heavy-load railway trains; The through capacity of the first arrival and departure line of the heavy-haul railway combination decomposition station is solved based on the heavy-haul railway train heavy-load type, occupied track section, empty fee coefficient and arrival and departure line occupation time, and the through capacity of the second arrival and departure line of the heavy-haul railway combination decomposition station is solved based on the heavy-haul railway window opening type, opening time, train heavy-load type, occupied track section, empty fee coefficient and arrival and departure line occupation time, wherein the through capacity of the first arrival and departure line represents the through capacity of the arrival and departure line on non-window days, and the through capacity of the second arrival and departure line represents the through capacity of the arrival and departure line on window days; Specifically, the first arrival and departure line capacity N1 is solved by the following formula: Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, and t0 represents the average time it takes for a train operation to occupy the equipment, in min.

2. The method for calculating the throughput capacity of the arrival and departure lines of the heavy-haul railway assembly and decomposition station according to claim 1, characterized in that: The infrastructure data includes the nature data of heavy-haul railway stations, the grade data of stations, and the line data for handling train reception and dispatching, shunting operations and passenger / freight services.

3. The method for calculating the throughput capacity of the arrival and departure lines of the heavy-haul railway assembly and decomposition station according to claim 1, characterized in that: The loading of target infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains specifically includes: loading target infrastructure data to obtain the arrival and departure line occupancy time of heavy-load railway trains through the arrival and departure timetable of heavy-load railway trains and the opening and closing time of microcomputer interlocking signals.

4. The method for calculating the throughput capacity of the arrival and departure lines of a heavy-haul railway assembly and decomposition station according to claim 1, characterized in that: The principles for using the arrival and departure lines are determined based on the effective length of the station track section, the station connection direction, and the setting of on-site work posts.

5. The method for calculating the throughput capacity of the arrival and departure lines of a heavy-haul railway assembly and decomposition station according to any one of claims 1 to 4, characterized in that: Specifically, the first departure line capacity N2 is solved by the following formula: Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-load railway trains, A is the value corresponding to the track section occupied by heavy-load railway trains, t0 represents the average time it takes for a train operation to occupy the equipment, in min, and T represents the total duration of the annual window time and the window idle charge time, in min.

6. A device for calculating the throughput capacity of the arrival and departure lines of a heavy-haul railway combination and decomposition station, characterized in that: include: Acquisition module: used to obtain infrastructure data of heavy-haul railways; Classification module: used for receiving the infrastructure data sent by the acquisition module, and classifying the infrastructure data according to the station receiving and dispatching track section and the arrival and departure line usage principle to obtain the target infrastructure data; Arrival and departure line occupancy time module: used for receiving the target infrastructure data sent by the classification module, loading the target infrastructure data, and obtaining the arrival and departure line occupancy time of heavy-load railway trains; The first calculation module is used to solve the first arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway train heavy-haul type, occupied track section, empty fee coefficient and arrival and departure line occupation time; The first calculation module is specifically used to solve the first departure line throughput capacity N1 by the following formula: Among them, 1440 represents the total duration of a day and night, in minutes, M is the number of devices performing the same operation in parallel, and t i Indicates the duration of the i-th fixed operation occupying the device, in min, n is the total number of fixed operations, 1≤i≤n, i and n are positive integers, Indicates the total time that all fixed jobs occupy the device, in min, r x is the idle charge coefficient of heavy-haul railway trains, A is the value corresponding to the track section occupied by heavy-haul railway trains, and t0 represents the average time it takes for a train operation to occupy the equipment, in minutes; The second calculation module is used to solve the second arrival and departure line capacity of the heavy-haul railway combination decomposition station based on the heavy-haul railway skylight opening type, opening time, train heavy-load type, occupied track section, empty fee coefficient and arrival and departure line occupation time; The first passing capacity to the departure line represents the passing capacity to the departure line on a non-skylight day, and the second passing capacity to the departure line represents the passing capacity to the departure line on a skylight day.

7. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for calculating the arrival and departure line throughput capacity of a heavy-haul railway combination and decomposition station as described in any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating the arrival and departure line throughput capacity of a heavy-haul railway combination and decomposition station as described in any one of claims 1 to 5 are implemented.

9. A computer program product, characterized in that When the computer program product is run on a processor, the steps of the method for calculating the arrival and departure line throughput capacity of a heavy-haul railway combination and decomposition station as described in any one of claims 1 to 5 are implemented.

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