Railway technology station group number adjusting method and adjusting system

Abstract

The invention provides a railway technology station group number adjusting method and an adjusting system. The railway technology station group number adjusting method comprises the following steps: acquiring basic data; calculating traffic flow intensity of a technical station according to the basic data to obtain a strong traffic flow group number and a weak traffic flow group number; and automatically adjusting the traffic flow group number of the technical station according to the strong traffic flow group number and the weak traffic flow group number. According to the technical scheme, the traffic flow group numbers, with the traffic flow intensity outside the reasonable standard, of all the technical stations on the road network can be automatically split or combined, and therefore compiling and adjusting of a marshalling plan of the freight train are better facilitated; the method accords with basic rules of railway traffic flow organization, is clear in logic and easy to implement, and can provide powerful support for automatic adjustment of the marshalling plan, reduction of the working intensity of professionals and improvement of the marshalling plan making efficiency.

Description

Background Art

[0002] my country's railway network is crisscrossed, with a large number of stations and busy transportation business. When organizing freight transportation, the traffic is usually assembled at the technical station. At the technical station, the traffic arriving at different stations will be grouped in the form of group numbers. Each traffic group number is included in the corresponding train formation plan to determine the arrival of the freight train and its transfer service range. The traffic group number is formulated based on the traffic route and fed back to the freight train formation plan. As the link between the two, it plays an important role in realizing the high-quality and efficient transformation of the network traffic to the train flow.

[0003] Traffic intensity is an important basis for determining the rationality of the technical station group number setting. The traffic intensity standard of the group number is to ensure the reasonable traffic intensity range for organizing trains according to the group number. If the traffic intensity of the technical station group number is lower than this standard (weak traffic group number), it will cause the technical station to gather the traffic to the group number for a long time, making it difficult to organize the operation of direct trains, affecting the overall delivery speed of goods; if the traffic intensity of the technical station group number is higher than this standard, it may cause part of the traffic in the group number to be transferred too early during transportation (adapted to another group number train), which is not conducive to the operation of long-distance direct trains on the railway, increasing the workload of technical stations along the way, and also affecting the efficiency of cargo transportation. Therefore, it is necessary to set the traffic group number of each technical station on the road network according to the reasonable traffic intensity range to ensure that cargo transportation improves transportation efficiency while fully utilizing fixed and mobile equipment.

[0004] At present, during the period when the Ministry of Transport of the National Railway Group organized various railway bureaus and group companies to intensively study the adjustment plan of the formation plan, it is necessary to check and calculate the traffic intensity of the technical station group number involved in each suggestion, evaluate the rationality of the group number setting, comprehensively consider the traffic flow of the road network and the capacity of the relevant technical station facilities, and study and analyze the adaptability and feasibility of the relevant technical station trains and their formation adjustment. However, due to the large number of technical station group numbers and the large scale of stations covered, the traffic intensity calculation is high, and the current reliance on manual measurement has low decision-making efficiency and long cycle, and it is difficult to improve the decision-making quality within a limited time. Therefore, the design of an automatic calculation method for the traffic intensity of the formation plan group number can realize the linkage adjustment of the number of technical station group numbers and the scope of the domain, which can support the railway transportation department to quickly respond to the adjustment needs, timely optimize the formation plan, and improve the proportion and quality of direct trains, so as to provide support for the transformation of railways to modern and fast logistics transportation. Summary of the invention

[0005] The present application provides a railway technical station group number adjustment method and adjustment system, which are used to provide strong support for automatic adjustment of the marshaling plan, reduce the workload of professionals, and improve the efficiency of marshaling plan preparation.

[0006] In a first aspect, a method for adjusting a railway technical station group number is provided, comprising the following steps:

[0007] Obtain basic data;

[0008] Calculate the traffic flow intensity of the technical station according to the basic data, and obtain the strong traffic flow group number and the weak traffic flow group number;

[0009] Automatically adjust the traffic flow group number of the technical station according to the strong traffic flow group number and the weak traffic flow group number.

[0010] In the above technical solution, by obtaining basic data; calculating the traffic flow intensity of the technical station according to the basic data, and obtaining the strong traffic flow group number and the weak traffic flow group number; automatically adjusting the traffic flow group number of the technical station according to the strong traffic flow group number and the weak traffic flow group number; it is possible to automatically split or merge the traffic flow group numbers of each technical station on the road network that are outside the reasonable standard, which is more conducive to the compilation and adjustment of the freight train formation plan; it conforms to the basic rules of railway traffic flow organization, has clear logic and is easy to implement, and can provide strong support for the automatic adjustment of the formation plan, reducing the work intensity of professional personnel, and improving the efficiency of compiling the formation plan.

[0011] In a specific and feasible implementation scheme, the step of automatically adjusting the traffic flow group number of the technical station according to the strong traffic flow group number and the weak traffic flow group number is specifically:

[0012] Split the strong traffic flow group number downward;

[0013] Or, merge the weak traffic flow group number upward;

[0014] Or, split the strong traffic flow group number downward and merge the weak traffic flow group number upward.

[0015] In a specific and feasible implementation scheme, the step of splitting the strong traffic flow group number downward, the step of merging the weak traffic flow group number upward, and the step of splitting the strong traffic flow group number downward and merging the weak traffic flow group number upward automatically split or merge the traffic flow group numbers of each technical station on the road network that are outside the reasonable standard, and reduce the number of the strong traffic flow group numbers or the weak traffic flow group numbers of the whole road.

[0016] In a specific and feasible implementation scheme, the step of splitting the strong traffic flow group number downward is specifically:

[0017] The strong traffic flow group number z transferred to technical station A u , the group number to the domain station is SD u ={sd1, sd2, ……, sd m},the group number to the in-domain technical station is SJ u ={sj1, sj2, ……, sjn}, where n < m, the group number fulcrum station is u, and the group number traffic flow intensity is Qu , the upper limit of the reasonable group number traffic intensity is Q max , the lower bound of the reasonable group number traffic intensity is Q min ;

[0018] Calculate technical stations A to SJ in sequence u The number of technical stations that the traffic flow path of each technical station passes through JV = {jv1, jv2, ..., jv n} and mileage L = {l1,l2,…,l n};

[0019] SJ is sorted in descending order according to the number of technical stations JV and mileage L. u Sort by

[0020] Calculate technical stations A to SJ in sequence u The vehicle paths of each technical station in the domain are connected to the SD u Make the intersection to form a new group number to the domain set ND u ={nd1,nd2,……,nd n};

[0021] Calculate the traffic intensity of each new group number QN = {qn1, qn2, ..., qn n};

[0022] Determine qn i Is it greater than the group strength lower bound Q? min If so, determine the split to form a new group number z i , and update the original strong traffic group number to the domain SD u =SD u -nd u , traffic intensity Q u =Q u -qn u ;

[0023] Determine the traffic intensity Q u Is it greater than the upper limit of group strength Q? max If not, then output the group number z after splitting u And confirm the new group number z formed by the split i , including the arrival domain set of each group number and the traffic intensity.

[0024] In a specific implementation scheme, the step of upwardly merging the weak traffic flow group numbers is specifically as follows:

[0025] The weak traffic group number set ZR transferred to technical station A = {zr1,zr2,……,zr n}, where n is the number of weak traffic groups at present, and the upper bound of the traffic intensity of reasonable groups is Q max, the lower bound of the reasonable group number traffic intensity is Q min ;

[0026] The merging order of the weak traffic group numbers is sorted in descending order according to the traffic flow path from technical station A to each weak traffic group number pivot station through the group number pivot station number and mileage;

[0027] Determine group number zr i Is the traffic intensity lower than Q min If yes, calculate the technical station A to group number zr i The set of other group numbered pivot stations on the pivot station's traffic path ZS = {zs1, zs2, ..., zs e};

[0028] Determine whether ZS is an empty set. If not, set group number zr i With the previous group number z e Merge and update the upper group number z synchronously e The scope of the area and the intensity of traffic flow;

[0029] Output the upward merged traffic group number set Z = {z1,z2,……,z m}, including the domain set of each group number and the traffic intensity.

[0030] In a specific implementation scheme, the steps of calculating the traffic flow intensity of the technical station according to the basic data and obtaining the strong traffic flow group number and the weak traffic flow group number are specifically as follows:

[0031] The freight ticket traffic data in the basic data are distributed to each technical station of the road network according to the traffic path, and combined with the group number setting of the technical stations of the whole road, the traffic with or without shunting passing through each technical station is calculated;

[0032] According to the arrival of the traffic flow at each technical station, the traffic flow is included in the corresponding group number of the technical station, and the traffic flow intensity of each group number is calculated in turn to obtain the strong traffic flow group number and the weak traffic flow group number.

[0033] In a specific implementation scheme, the freight ticket traffic data in the basic data is distributed to each technical station of the road network according to the traffic path, and combined with the group number setting of the technical stations of the whole road, the steps of calculating the traffic with or without shunting passing through each technical station are specifically as follows:

[0034] Transfer the designated traffic flow list WF into the road network = {f1,f2,……,f w} and the list of technical stations of the road network SA = {s1, s2, ..., s m}; Create a shunting flow set YFs and a non-shunting flow set WFs for each technical station s in SA;

[0035] Query traffic flowj The specific traffic path R f , extract path R f The list of special technology stations S = {s1, s2, ..., s n};

[0036] Determine the traffic flow j Does it meet the departure and direct train formation plan? If so, the traffic flow f j Add to the unadjusted traffic flow set WFs of each technical station in the list S in turn;

[0037] Extract the first technical station s1 in the list S, and set the current transfer technical station to s d ,s d The serial number in list S is d;

[0038] Retrieve current technical stations d The group number dictionary Dict, according to the traffic flow f j Arrival station D, retrieve the traffic flow f in Dict j At the Technology Stations d The belonging group number Z, obtain the group number fulcrum station s corresponding to group number Z z ,s z The serial number in list S is z;

[0039] Determine whether d is less than z. If so, change the traffic flow f j Join Technology Stations d 、s z In the set of shunted traffic flows YFs, s d =s z , d = z;

[0040] The extraction list S contains the traffic flow set YFs which does not contain traffic flow f j A collection of technical stations q ={s1,s2,……,s t}, the traffic flow f j Join S q In the set of unadjusted traffic flows WFs of each technical station;

[0041] Output the shunting flow table YFs and the non-shunting flow table WFs of each technical station s in the set SA.

[0042] In a specific implementation scheme, according to the arrival of the traffic flow at each technical station, the traffic flow is included in the corresponding group number of the technical station, and the traffic flow intensity of each group number is calculated in turn to obtain the strong traffic flow group number and the weak traffic flow group number. Specifically, the steps are:

[0043] The set of technical stations transferred into the road network SA = {s1, s2, ..., s m};

[0044] Reading Technology Stations i The list of shunted train flows YFs = {f1,f2,……,f w};

[0045] Reading Technology Stations i The group number traffic flow destination list Z = {z1,z2,……,z n}, create i The set of directional traffic flow YF = {YF1, YF2, ..., YF n}, where YF X For each group number, go to z x There is a collection of shunting flows; establish s i The list of shunting traffic in different directions YV = {y1, y2, ..., y n}, where y x For each group number, go to z x There are shunting flow values;

[0046] Get the traffic flow f in the traffic flow list YFs j , retrieve the group number list Z, and obtain the traffic flow f j The group number of the arrival station D is z d , the traffic flow f j Join group number z d The corresponding traffic flow set YF d middle;

[0047] Calculate Z s Each group number has shunting flow; y i =Σf, any f∈YF i , f is the group number z i There are traffic flows in the traffic flow list;

[0048] Output the list of shunted train flows with different group numbers in each technical station s in SA

[0049] YF={YF1,YF2,……,YF n}, and a list of shunting flows with different group numbers and destinations

[0050] YV={y1,y2,……,y n}.

[0051] In a specific implementation scheme, the basic data includes: freight network data, freight vehicle flow data, vehicle flow route data, vehicle flow group number data and originating direct-to-access marshaling plan data.

[0052] In a second aspect, a railway technical station group number adjustment system is provided, comprising:

[0053] A basic data acquisition module is used to acquire basic data;

[0054] A traffic flow intensity calculation module, used to calculate the traffic flow intensity of the technical station according to the basic data, and obtain a strong traffic flow group number and a weak traffic flow group number;

[0055] The group number automatic adjustment module is used to automatically adjust the traffic group number of the technical station according to the strong traffic group number and the weak traffic group number.

[0056] In the above technical scheme, basic data is obtained; the traffic intensity of the technical station is calculated according to the basic data to obtain the strong traffic group number and the weak traffic group number; the traffic group number of the technical station is automatically adjusted according to the strong traffic group number and the weak traffic group number; the traffic group numbers of the technical stations on the road network whose traffic intensity is outside the reasonable standard can be automatically split or merged, so as to be more conducive to the preparation and adjustment of the freight train formation plan; it complies with the basic rules of railway traffic organization, has clear logic and is easy to implement, and can provide strong support for the automatic adjustment of the formation plan, reduce the workload of professionals, and improve the efficiency of the formation plan preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A flowchart of a method for adjusting a railway technical station group number provided in an embodiment of the present application;

[0058] Figure 2 A structural block diagram of a railway technical station group number adjustment system provided in an embodiment of the present application;

[0059] Figure 3 A flowchart of downward splitting of a strong traffic group number provided in an embodiment of the present application;

[0060] Figure 4 A flowchart of upward merging of weak traffic group numbers provided in an embodiment of the present application;

[0061] Figure 5 A flowchart of the first stage of calculating the vehicle flow intensity of the technical station group number provided in the embodiment of the present application;

[0062] Figure 6 A flowchart of the second step of calculating the vehicle flow intensity of the technical station group number provided in the embodiment of the present application;

[0063] Figure 7 An analysis network diagram is provided for an embodiment of the present application.

[0064] Specific implementation method

[0065] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0066] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0067] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0068] To facilitate understanding of the railway technical station group number adjustment method provided in the embodiment of the present application, its application scenario is first explained. The railway technical station group number adjustment method provided in the embodiment of the present application is used to automatically adjust the marshaling plan, reduce the workload of professionals, and improve the efficiency of marshaling plan preparation to provide strong support. At this stage, during the period when the Ministry of Transportation of the National Railway Group organizes various railway bureau group companies to intensively study the marshaling plan adjustment plan, it is necessary to check and calculate the traffic intensity of the technical station group number involved in each suggestion, evaluate the rationality of the group number setting, comprehensively consider the traffic flow of the road network and the capacity of the relevant technical station facilities, and study and analyze the adaptability and feasibility of the relevant technical station trains and their marshaling adjustments. However, due to the large number of technical station group numbers across the railway, the large scale of the stations covered, and the high amount of traffic intensity calculation, it currently relies on manual measurement, with low decision-making efficiency and long cycle, and it is difficult to improve the quality of decision-making within a limited time. Therefore, the automatic calculation method of the vehicle flow intensity of the group number of the marshaling plan is designed to realize the linkage adjustment of the number of technical station group numbers and the scope of the domain, which can support the railway transportation department to quickly respond to adjustment needs, optimize the marshaling plan in time, improve the proportion and quality of direct trains, and provide support for the transformation of railways to modern and fast logistics and transportation. To this end, the embodiment of the present application provides a railway technical station group number adjustment method to provide strong support for the automatic adjustment of the marshaling plan, reduce the workload of professionals, and improve the efficiency of marshaling plan preparation. It is described in detail below with specific examples in conjunction with the accompanying drawings.

[0069] refer to Figure 1 and Figure 2 , Figure 1 A flowchart of a method for adjusting a railway technical station group number provided in an embodiment of the present application; Figure 2 A structural block diagram of a railway technical station group number adjustment system provided in an embodiment of the present application; Figure 3 A flowchart of downward splitting of a strong traffic group number provided in an embodiment of the present application; Figure 4 A flowchart of upward merging of weak traffic group numbers provided in an embodiment of the present application; Figure 5 A flowchart of the first stage of calculating the vehicle flow intensity of the technical station group number provided in the embodiment of the present application; Figure 6 A flowchart of the second step of calculating the vehicle flow intensity of the technical station group number provided in the embodiment of the present application; Figure 7An analysis network diagram is provided for an embodiment of the present application.

[0070] exist Figure 1 In the embodiment of the present application, a method for adjusting a railway technical station group number is provided, comprising the following steps:

[0071] Get basic data;

[0072] Calculate the traffic flow intensity of the technical station according to the basic data to obtain a strong traffic flow group number and a weak traffic flow group number;

[0073] The traffic group number of the technical station is automatically adjusted according to the strong traffic group number and the weak traffic group number.

[0074] In the above technical scheme, basic data is obtained; the traffic intensity of the technical station is calculated according to the basic data to obtain the strong traffic group number and the weak traffic group number; the traffic group number of the technical station is automatically adjusted according to the strong traffic group number and the weak traffic group number; the traffic group numbers of the technical stations on the road network whose traffic intensity is outside the reasonable standard can be automatically split or merged, so as to be more conducive to the preparation and adjustment of the freight train formation plan; it complies with the basic rules of railway traffic organization, has clear logic and is easy to implement, and can provide strong support for the automatic adjustment of the formation plan, reduce the workload of professionals, and improve the efficiency of the formation plan preparation.

[0075] In a specific implementation scheme, the step of automatically adjusting the traffic group number of the technical station according to the strong traffic group number and the weak traffic group number is specifically as follows:

[0076] The strong traffic flow group number is split downward; the downward splitting here refers to splitting the strong traffic flow group number downward into a plurality of new group numbers whose traffic flow intensities meet the group number traffic flow intensity standard;

[0077] Alternatively, the weak traffic flow group number is merged upward; the upward merging here means merging the weak traffic flow group number upward with other existing group numbers,

[0078] Alternatively, the strong traffic group number is split downward, and the weak traffic group number is merged upward; that is, the strong traffic group number is split downward into several new group numbers whose traffic intensities meet the group number traffic intensity standard, and at the same time, the weak traffic group number is merged upward with other existing group numbers.

[0079] In the above technical scheme, the traffic group numbers whose traffic intensity at each technical station on the road network is outside the reasonable standard can be automatically split or merged, so that the number of strong or weak traffic group numbers on the entire road is gradually reduced, which is more conducive to the preparation and adjustment of freight train formation plans.

[0080] In a specific feasible implementation, the steps of downward splitting the strong traffic flow group numbers, the steps of upward merging the weak traffic flow group numbers, and the steps of downward splitting the strong traffic flow group numbers and upward merging the weak traffic flow group numbers automatically split or merge the traffic flow group numbers of each technical station on the road network that are outside the reasonable standard, and reduce the number of the strong traffic flow group numbers or the weak traffic flow group numbers of the whole road.

[0081] Specifically, by calculating the traffic flow intensity of the technical station group numbers, the rationality of the current group number setting can be judged, so as to optimize and adjust the existing group numbers. One is to downward split the strong traffic flow group numbers with too high traffic flow intensity (higher than the upper bound Qmax of the standard) into several new group numbers that meet the standard, and the other is to upward merge the weak traffic flow group numbers with too small traffic flow intensity (lower than the lower bound Qmin of the standard) with other existing group numbers to reduce the number of weak traffic flow group numbers.

[0082] Reference Figure 3 In a specific feasible implementation, the steps of downward splitting the strong traffic flow group numbers are specifically as follows:

[0083] The strong traffic flow group number z transferred to technical station A u , the group number to the domain station is SD u ={sd1, sd2, ……, sd m},the group number to the in-domain technical stations is SJ u ={sj1, sj2, ……, sjn}, where n < m, the group number pivot station is u, and the group number traffic flow intensity is Q u , the upper bound of the reasonable group number traffic flow intensity is Q max , the lower bound of the reasonable group number traffic flow intensity is Q min ;

[0084] Calculate in turn the number of technical stations JV={jv1, jv2, ……, jv u} and the mileage L={l1, l2, ……, l n} that the traffic routes of each technical station from technical station A to SJ n pass through;

[0085] Sort SJ u in descending order according to the number of technical stations JV and the mileage L;

[0086] Calculate in turn the domain of the vehicle path of each technical station from technical station A to SJ u , and respectively make intersections with SD u to form a new group number to domain set ND u ={nd1, nd2, ……, nd n};

[0087] Calculate the traffic intensity of each new group number QN = {qn1, qn2, ..., qn n};

[0088] Determine qn i Is it greater than the lower limit Q of the group strength? min If so, determine the split to form a new group number z i , and update the original strong traffic group number to the domain SD u =SD u -nd u , traffic intensity Q u =Q u -qn u ;

[0089] Determine the traffic intensity Q u Is it greater than the upper limit of group strength Q? max If not, then output the group number z after splitting u And confirm the new group number z formed by the split i , including the arrival domain set of each group number and the traffic intensity.

[0090] Specifically, suppose that when a group number z of technical station A i (z i ∈Z, i is the corresponding group number support station, Z={z1,z2,……,z n}) exceeds the standard upper bound Q max When (Si={s1,s2,……,s m} is the group number of A technical station z i To the set of stations included in the domain), calculate the technical stations s from the farthest to the nearest (far means the distance is more than the technical stations, and the distance is the same when the number of technical stations is the same) in Si k (s k ∈Si j ) and the traffic path of station A to the domain range, and the domain is intersected with Si to form the technical station A to technical station s k New group number zs k , when the new group number zs k The traffic intensity is higher than the standard lower bound Q min When the new group number is zs k Can be successfully split and formed, when the traffic intensity of the original group number minus the traffic intensity of the new group number formed by successful splitting is less than the upper bound Q max When there are multiple strong traffic flow groups at technical station A that need to be split in sequence, no specific requirement is made on the splitting order. i The specific splitting process is as follows.

[0091] Step 21: Transfer the heavy traffic group number z of technical station Au The pivot station of the group number is u, and the group number to the domain station is SD u ={sd1, sd2, ……, sd m} The group number to the technical stations within the domain is SJ u ={sj1, sj2, ……, sjn} (n < m), and the traffic flow intensity of the group number is Q u , The upper bound of the reasonable traffic flow intensity of the group number is Q max , The lower bound is Q min .

[0092] Step22: Calculate successively the number of technical stations JV = {jv1, jv2, ……, jv u} and the mileage L = {l1, l2, ……, l n} passed by the traffic flow routes of each technical station from technical station A to SJ n .

[0093] Step23: Sort SJ u in descending order according to the number of passed technical stations JV and mileage L (comparing the mileage size on the premise of the same number of passed technical stations).

[0094] Step24: Calculate successively the traffic flow routes of each technical station from technical station A to SJ u to the domain, and respectively make intersections with SD u to form a new group number to the domain set ND u ={nd1, nd2, ……, nd n}.

[0095] Step25: Calculate the traffic flow intensity QN = {qn1, qn2, ……, qn n} of each new group number, and initialize the traversal index i = 1 of the new group number.

[0096] Step26: Is i less than or equal to n? If so, execute Step27; otherwise, execute Step29.

[0097] Step27: Judge whether qn i is greater than the lower bound Q min of the group number intensity. If so, determine to split and form a new group number z i , update the original strong traffic flow group number to the domain SD u = SD u - nd u , the traffic flow intensity Q u = Q u - qn u , and execute Step28; otherwise, i++ and return to Step26.

[0098] Step28: Judge the traffic flow intensity Qu Is it greater than the upper limit of group strength Q? max (Is it still a strong traffic group number), if so, i++ returns to Step 26, otherwise executes Step 29.

[0099] Step 29: Output the split group number z u And confirm the new group number z formed by the split i , including the arrival domain set of each group number and the traffic intensity.

[0100] refer to Figure 4 In a specific implementation scheme, the step of merging the weak traffic group numbers upwards is specifically as follows:

[0101] The weak traffic group number set ZR transferred to technical station A = {zr1,zr2,……,zr n}, where n is the number of weak traffic groups at present, and the upper bound of the traffic intensity of reasonable groups is Q max , the lower bound of the reasonable group number traffic intensity is Q min ;

[0102] The merging order of the weak traffic group numbers is sorted in descending order according to the traffic flow path from technical station A to each weak traffic group number pivot station through the group number pivot station number and mileage;

[0103] Determine group number zr i Is the traffic intensity lower than Q min If yes, calculate the technical station A to group number zr i The set of other group numbered pivot stations on the pivot station's traffic path ZS = {zs1, zs2, ..., zs e};

[0104] Determine whether ZS is an empty set. If not, set group number zr i With the previous group number z e Merge and update the upper group number z synchronously e The scope of the area and the intensity of traffic flow;

[0105] Output the upward merged traffic group number set Z = {z1,z2,……,z m}, including the domain set of each group number and the traffic intensity.

[0106] Specifically, suppose that the traffic intensity at technical station A is lower than the standard lower bound Q min The weak traffic group number ZR = {zr1,zr2,……,zr n}, calculate the traffic flow paths from technical station A to each weak traffic flow group number pivot station, and sort the merge order of the weak traffic flow group numbers according to the number of group number pivot stations and mileage of each path from large to small (if the number of group number pivot stations is the same, the mileage is compared). Suppose it is the turn of a weak traffic flow group number zr at technical station A. i (zr i ∈ZR, i is the corresponding group number support station) needs to be merged upward, the set of other group number support stations ZS={zs1,zs2,……,zs e}, when ZS is an empty set, the weak traffic group number zr i Because there is no upper group number, it cannot be merged upwards. However, when ZS is not an empty set, the group number zr i With the previous group number z e Merge and update the upper group number z synchronously e The range of the domain and the intensity of traffic flow. Then determine zr i+1 Is it a weak traffic group number? If so, continue to merge group number zr upwards in the same way i+1 , and so on, the process ends when all weak traffic group numbers are traversed one by one. The specific upward merging process is as follows:

[0107] Step 31: Transfer the weak traffic group number set ZR of technical station A into {zr1,zr2,……,zr n}, n is the number of current weak traffic groups, and the upper limit of the traffic intensity of reasonable groups is Q max , the lower bound is Q min .

[0108] Step 32: Sort the merge order of the weak traffic group numbers according to the traffic route from technical station A to each weak traffic group number pivot station in the order of the number of group number pivot stations and mileage from large to small (if the number of group number pivot stations is the same, the mileage is compared), and initialize the weak traffic group number retrieval sequence number i=1.

[0109] Step 33: Determine whether i is less than or equal to n. If so, execute Step 34; otherwise, execute Step 38.

[0110] Step 34: Determine group number zr i Is the traffic intensity lower than Q min If yes, execute Step35, otherwise i++ returns to Step33.

[0111] Step 35: Calculate the technical station A to group number zr i The set of other group numbered pivot stations on the pivot station's traffic path ZS = {zs1, zs2, ..., zs e}.

[0112] Step 36: Determine whether ZS is an empty set (i.e. group number zr i No upper group number), if yes, i++ returns to Step 33, otherwise executes Step 37.

[0113] Step 37: Set group number zr i With the previous group number z e Merge and update the upper group number z synchronously e The domain range and traffic intensity, i++ returns to Step 33.

[0114] Step 38: Output the upward merged vehicle flow group number set Z = {z1, z2, ..., z m}, including the domain set of each group number and the traffic intensity.

[0115] refer to Figure 7 In a specific implementation plan, to further illustrate the adjustment principle of this method, a transportation network including 8 technical stations (station A is the current technical station) and 29 ordinary intermediate stations is constructed, such as Figure 3 As shown (the distances between two adjacent stations are equal). Assuming that the case network contains 24 OD traffic flows, the specific departure stations, arrival stations, daily average flow, and traffic flow paths are shown in Table 1. Taking technical station A as the current station, the implementation process of downward splitting of strong traffic flow group numbers and upward merging of weak traffic flow group numbers is demonstrated.

[0116] (1) Demonstration of the process of splitting the strong traffic group number downward

[0117] Assume that station A currently has only one group number, the fulcrum station of the group number is B, the arrival stations included in the group number are technical stations BH and intermediate stations 6-29, a total of 31 stations. According to the OD traffic information in Table 1, it is calculated that the traffic intensity of group number B is 740 cars.

[0118]

[0119]

[0120] Table 1 Traffic flow information table

[0121] Assuming that the lower limit of reasonable group traffic intensity is 180 cars and the upper limit is 360 cars, since the traffic intensity of the group number from technical station A→B is 740 cars, it belongs to a strong traffic group number. According to the principle of downward splitting of strong traffic group numbers, first calculate the number of technical stations and mileages from A to other technical stations, and arrange them in descending order as H, G, F, E, D, C, B, and then use these technical stations as group number fulcrum stations to try to split downward. When trying to split with station H, the group number to the domain is stations H, 28 and 29, and the corresponding traffic intensity is 60 cars, which is lower than the lower limit of reasonable traffic intensity, and splitting is not allowed; when trying to split with station G, the group number to the domain is stations G, 23 and 24, and the corresponding traffic intensity is 40 cars, which is lower than the lower limit Q min , splitting is not allowed; when trying to split at station F, the group numbers to the domain stations are F, 17 and 18, and the corresponding traffic intensity is 30 cars, which is lower than the lower bound Q min , splitting is not allowed; when trying to split at station E, the group number to the domain is station E, 11 and 12, and the corresponding traffic intensity is 40 cars, which is lower than the lower bound Q min , splitting is not allowed; when trying to split at station D, the group number to the domain is stations D, G, H and 21-29, and the corresponding traffic intensity is 220 cars. Within the reasonable traffic intensity range, it is confirmed that the split forms the traffic group number of A→D, and the original group number of A→B is updated to the domain stations B, C, E, F and 6-20, and the traffic intensity is 740-220=520 cars. At this time, the group number is still higher than the upper limit of the reasonable traffic intensity and can be further split; then try to split at station C, the group number to the domain stations C, E, F and 8-20, and the corresponding traffic intensity is 260 cars. Within the reasonable traffic intensity range, it is confirmed that the split forms the traffic group number of A→C, and the original group number of A→B is updated to the domain stations B, 6 and 7, and the traffic intensity is 520-260=260 cars. At this time, the group number is no longer a strong traffic group number and does not need to be further split. Therefore, the strong traffic group A→B is split into two new groups A→C and A→D. The traffic intensity of each group is within a reasonable range. The specific information of the three groups after splitting is shown in Table 2.

[0122] Serial number Group No. Fulcrum Station Group number to domain station Group number traffic intensity (car) 1 B B、6、7 260 2 C C, E, F, and 8-20 260 3 D D, G, H and 21-29 220

[0123] Table 2 The vehicle flow group number information table of technical station A after downward splitting

[0124] (2) Demonstration of the upward merging process of weak traffic group numbers

[0125] Still Figure 1 Taking the road network and OD traffic flow information in Table 1 as an example, assuming that station A currently has 7 group numbers, the specific information is shown in Table 3.

[0126] Serial number Group No. Fulcrum Station Group number to domain station Group number traffic intensity (car) 1 B B、6、7 260 2 C C、8-10、13-16、19-20 190 3 D D、21-22、25-27 120 4 E 11、12 40 5 F 17、18 30 6 G 23、24 40 7 H 28、29 60

[0127] Table 3 Vehicle flow group number information table of technical station A before upward merging

[0128] It is still assumed that the lower limit of the reasonable group number traffic flow intensity is 180 cars, and the upper limit is 360 cars. Since the traffic flow intensities of groups A→D, A→E, A→F, A→G and A→H are 120, 40, 30, 40 and 60 cars respectively, they belong to weak traffic flow groups. According to the principle of upward merging of weak traffic flow groups, the number and mileage of other group number pivot stations on the path from A to the weak group number pivot station are first calculated, and they are arranged in order from large to small, namely H, G, F, E, D, and then these technical stations are used as group number pivot stations for upward merging. When the H station is attempted to be merged upward, the traffic intensity of group number A→H is 60 cars, which belongs to the weak traffic group number. The upper group number arrives at D. After the merger, the arrival stations of group number A→D are D, H, 21-22, 25-29, and the traffic intensity is updated to 120+60=180 cars; when the G station is attempted to be merged upward, the traffic intensity of group number A→G is 40 cars, which belongs to the weak traffic group number. The upper group number arrives at D. After the merger, the arrival stations of group number A→D are D, G, H, 21-29, and the traffic intensity is updated to 180+40=220 cars; when the F station is attempted to be merged upward, the traffic intensity of group number A→F is 30 cars, which belongs to the weak traffic group number. The traffic group number, the upper group number arrival station is C, and the arrival stations of group number A→C after merging are C, F, 8-10, 13-20, and the traffic intensity is updated to 190+30=220 cars; when trying to merge station E upward, the traffic intensity of group number A→E is 40 cars, which belongs to the weak traffic group number, the upper group number arrival station is C, and the arrival stations of group number A→C after merging are C, E, F, 8-20, and the traffic intensity is updated to 220+40=260 cars; when trying to merge station D upward, the traffic intensity of group number A→D is 220 cars, which is within the reasonable group number intensity range and does not need to be merged upward. At this time, all the original weak traffic group numbers are merged upward. After the merger, the group number information of the current technical station A is consistent with the information shown in Table 2, and there is no strong or weak traffic group number, which shows that the goal orientation of the method is consistent and the same effect is achieved, proving that the adjustment method is reasonable and feasible.

[0129] refer to Figure 5 and Figure 6 In a specific implementation scheme, the steps of calculating the traffic flow intensity of the technical station according to the basic data and obtaining the strong traffic flow group number and the weak traffic flow group number are specifically as follows:

[0130] The freight ticket traffic data in the basic data are distributed to each technical station of the road network according to the traffic path, and combined with the group number setting of the technical stations of the whole road, the traffic with or without shunting passing through each technical station is calculated;

[0131] According to the arrival of the traffic flow at each technical station, the traffic flow is included in the corresponding group number of the technical station, and the traffic flow intensity of each group number is calculated in turn to obtain the strong traffic flow group number and the weak traffic flow group number.

[0132] refer to Figure 5 In a specific implementation scheme, the freight ticket traffic data in the basic data is distributed to each technical station of the road network according to the traffic path, and combined with the group number setting of the technical stations of the whole road, the steps of calculating the traffic with or without shunting passing through each technical station are specifically as follows:

[0133] Transfer the designated traffic flow list WF into the road network = {f1,f2,……,f w} and the list of technical stations of the road network SA = {s1, s2, ..., s m}; Create a shunting flow set YFs and a non-shunting flow set WFs for each technical station s in SA;

[0134] Query traffic flow j The specific traffic path R f , extract path R f The list of special technology stations S = {s1, s2, ..., s n};

[0135] Determine the traffic flow j Does it meet the departure and direct train formation plan? If so, the traffic flow f j Add to the unadjusted traffic flow set WFs of each technical station in the list S in turn;

[0136] Extract the first technical station s1 in the list S, and set the current transfer technical station to s d ,s d The serial number in list S is d;

[0137] Retrieve current technical stations d The group number dictionary Dict, according to the traffic flow f j Arrival station D, retrieve the traffic flow f in Dict j At the Technology Stations d The belonging group number Z, obtain the group number fulcrum station s corresponding to group number Z z ,s z The serial number in list S is z;

[0138] Determine whether d is less than z. If so, change the traffic flow f j Join Technology Stations d 、s z In the set of shunted traffic flows YFs, s d =s z , d = z;

[0139] The extraction list S contains the traffic flow set YFs which does not contain traffic flow f j A collection of technical stations q ={s1,s2,……,s t}, add the vehicle flow f j to S q into the non - adjusted vehicle flow set WFs of each technical station in it;

[0140] Output the adjusted vehicle flow table YFs and non - adjusted vehicle flow table WFs of each technical station s in the set SA.

[0141] Specifically, allocate the waybill vehicle flow of 95306 to each technical station on the road network according to the vehicle flow routing, and calculate the adjusted / non - adjusted vehicle flow passing through each technical station in combination with the current group number setting of all technical stations on the road. The specific steps are as follows:

[0142] Step1: Import the specified vehicle flow list WF = {f1, f2, ……, f w} of the road network, with a total of w vehicle flows; import the road network technical station list SA = {s1, s2, ……, s m} of the road network, with a total of m technical stations; create an adjusted vehicle flow set YFs and a non - adjusted vehicle flow set WFs for each technical station s in SA. Initially define the vehicle flow index j = 1.

[0143] Step2: Whether j is less than or equal to w. If so, execute Step3; otherwise, execute Step9.

[0144] Step3: Query the specific vehicle flow routing R j of the vehicle flow f f , and extract the technical station list S = {s1, s2, ……, s f} on the routing R n , and the length of the list is n.

[0145] Step4: Judge whether the vehicle flow f j meets the direct departure train formation plan. If so, add the vehicle flow f j to the non - adjusted vehicle flow set WFs of each technical station in the list S in turn, j++ and go to Step2; otherwise, execute Step5.

[0146] Step5: Extract the first technical station s1 in the list S, set the current adjusted transfer technical station as s d , and the serial number of s d in the list S is d (d < n), and let s d = s1.

[0147] Step6: Retrieve the group number dictionary Dict of the current technical station s d , and according to the arrival station D of the vehicle flow f j , retrieve the belonging group number Z of the vehicle flow f j at the technical station s d in the Dict, and obtain the group number pivot (technical) station s corresponding to the group number Zz , s z has the serial number z (z < n) in the list S. If s z does not exist, then Z = 0.

[0148] Step7: Determine whether d is less than z. If so, add the vehicle flow f j to the set YFs of the vehicle flow with classification at the technical station s d , s z . s d = s z , d = z, and jump to Step6; otherwise, execute Step8.

[0149] Step8: Extract the set S of technical stations where the vehicle flow with classification YFs in the list S does not contain the vehicle flow f j = {s1, s2, ……, s q}(t < n). Add the vehicle flow f t to the set WFs of the vehicle flow without classification of each technical station in S j . j++ and go to Step2. q

[0150] Step9: Output the table YFs of the vehicle flow with classification and the table WFs of the vehicle flow without classification of each technical station s in the set SA.

[0151] Reference Figure 6 , in a specific feasible implementation, the steps of incorporating the vehicle flow into the corresponding group numbers of the technical stations according to the arrival stations of the vehicle flows with classification of each technical station, and calculating the vehicle flow intensities of each group number in turn to obtain the group numbers of the strong vehicle flows and the group numbers of the weak vehicle flows are as follows:

[0152] The set SA of the technical stations incorporated into the road network = {s1, s2, ……, s m};

[0153] Read the list YFs of the vehicle flows with classification of the technical station s i = {f1, f2, ……, f w};

[0154] Read the list Z of the vehicle flow destinations of the group numbers of the technical station s i = {z1, z2, ……, z n}, and establish the set YF of the vehicle flows with classification in different directions of s i = {YF1, YF2, ……, YF n}, where YF X is the set of the vehicle flows with classification for each group number destination z x ; establish the list YV of the vehicle flow volumes with classification in different directions of s i = {y1, y2, ……, y n}, where y x is the vehicle flow volume for each group number destination z​x There are shunting flow values;

[0155] Get the traffic flow f in the traffic flow list YFs j , retrieve the group number list Z, and obtain the traffic flow f j The group number of the arrival station D is z d , the traffic flow f j Join group number z d The corresponding traffic flow set YF d middle;

[0156] Calculate Z s Each group number has shunting flow; y i =Σf, any f∈YF i , f is the group number z i There are traffic flows in the traffic flow list;

[0157] Output the list of shunted train flows with different group numbers in each technical station s in SA

[0158] YF={YF1,YF2,……,YF n}, and a list of shunting flows with different group numbers and destinations

[0159] YV={y1,y2,……,y n}.

[0160] Specifically, according to the arrival stations of the shunting traffic at the technical stations, the traffic is included in the corresponding group number of the technical stations, so as to calculate the traffic intensity of each group number in turn. The specific steps are as follows:

[0161] Step 11: Transfer in the network technical station set SA = {s1, s2, ..., s m}, there are m technical stations in total, and the current technical station index i=1.

[0162] Step 12: Determine whether i is less than or equal to m. If so, execute Step 13, otherwise execute Step 18.

[0163] Step 13: Read technical sites i The list of shunted train flows YFs = {f1,f2,……,f w}, there are w traffic flows in total.

[0164] Step 14: Read technical stations i The group number traffic flow destination list Z = {z1,z2,……,z n}, create i The set of directional traffic flow YF = {YF1, YF2, ..., YF n}, where YF X For each group number, go to z xThere is a traffic flow collection, initial Builds i The list of shunting traffic in different directions YV = {y1, y2, ..., y n}, where y x For each group number, go to z x There is a shunting flow value, the initial y x =0; let the current traffic index j=1.

[0165] Step 15: Determine whether j is less than w. If so, execute Step 16. Otherwise, determine j++ and execute Step 17.

[0166] Step 16: Get the traffic flow f in the traffic flow list YFs j , retrieve the group number list Z, and obtain the traffic flow f j The group number of the arrival station D is z d , the traffic flow f j Join group number z d The corresponding traffic flow set YF d In the above example, j++ goes to Step 15.

[0167] Step 17: Calculate Z s Each group number has shunting flow, y i =Σf, any f∈YF i (f is the group number z i If there is traffic in the traffic flow list, i++ goes to Step 12.

[0168] Step 18: Output the list of shunted train flows with different group numbers in each technical station s in SA

[0169] YF={YF1,YF2,……,YF n}, and a list of shunting flows with different group numbers and destinations

[0170] YV={y1,y2,……,y n}.

[0171] In a specific implementation scheme, the basic data includes: freight network data, freight vehicle flow data, vehicle flow route data, vehicle flow group number data and originating direct-to-access marshaling plan data.

[0172] Specifically, the basic data includes:

[0173] (1) Freight Network Data

[0174] Freight network data mainly refers to the railway station and line data for handling freight business. The station line name, line including stations, and the connection relationship between stations shall be based on the "National Railway Freight Business Station Schematic Map", the interval length between two adjacent stations shall be based on the "Railway Freight Rate Mileage Table", and the location of each station shall be based on the actual latitude and longitude coordinates.

[0175] (2) Freight traffic data

[0176] The traffic data mainly refers to the average volume of traffic between stations. The main source is the freight 95306 ticket information, including departure station, departure bureau, departure province, arrival station, arrival bureau, arrival province, cargo category, average daily volume and other information.

[0177] (3) Traffic flow route data

[0178] The traffic flow route data mainly includes the specific route between any stations and the traffic flow route to domain data between technical stations. The specific route between any stations includes the departure station, the final station, mileage, key nodes, and routes. The traffic flow route to domain between technical stations includes the departure technical station, the final technical station, mileage, key nodes, and the transfer radiation range (station collection) of the final technical station. The data is based on the route information specified in the "Route of Truck Traffic on All Roads" document.

[0179] (4) Traffic group number data

[0180] The train group number data is mainly based on the train group number information of the technical stations under the jurisdiction of the railway bureau group company as specified in the "Freight Train Formation Plan" document. It mainly includes information such as technical stations, group number support stations, group number range description, group number destination stations, etc. The group numbers of technical stations are not allowed to have overlapping destination stations.

[0181] (5) Departure and direct marshaling plan data

[0182] The data on the marshaling plan of the departing direct train stipulates the departure bureau, departure station, arrival bureau, arrival station, marshaling content, category, train type, train number, boundary point passed, number of trains and other information of the departing direct train, and shall be subject to the "Freight Train Marshalling Plan" published by the China Railway Corporation.

[0183] exist Figure 2 In the embodiment of the present application, a railway technical station group number adjustment system is also provided, including:

[0184] A basic data acquisition module is used to acquire basic data;

[0185] A traffic flow intensity calculation module, used to calculate the traffic flow intensity of the technical station according to the basic data, and obtain a strong traffic flow group number and a weak traffic flow group number;

[0186] The group number automatic adjustment module is used to automatically adjust the traffic group number of the technical station according to the strong traffic group number and the weak traffic group number.

[0187] In the above technical scheme, basic data is obtained; the traffic intensity of the technical station is calculated according to the basic data to obtain the strong traffic group number and the weak traffic group number; the traffic group number of the technical station is automatically adjusted according to the strong traffic group number and the weak traffic group number; the traffic group numbers of the technical stations on the road network whose traffic intensity is outside the reasonable standard can be automatically split or merged, so as to be more conducive to the preparation and adjustment of the freight train formation plan; it complies with the basic rules of railway traffic organization, has clear logic and is easy to implement, and can provide strong support for the automatic adjustment of the formation plan, reduce the workload of professionals, and improve the efficiency of the formation plan preparation.

[0188] Those skilled in the art will appreciate that the present application may be implemented as a system, method or computer program product.

[0189] Therefore, the present disclosure may be specifically implemented in the following forms, namely: it may be completely hardware, it may be completely software (including firmware, resident software, microcode, etc.), or it may be a combination of hardware and software, generally referred to herein as a "circuit", "module" or "system". In addition, in some embodiments, the present application may also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium may contain computer-readable program code.

[0190] Any combination of one or more computer-readable media can be used. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable storage media can be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this document, computer-readable storage media can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0191] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art can change, modify, replace and modify the above embodiments within the scope of the present application. On this basis, a variety of replacements and improvements can be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A method for adjusting the group number of a railway technical station, characterized in that: The following steps are involved: Get basic data; Calculate the traffic flow intensity of the technical station according to the basic data to obtain a strong traffic flow group number and a weak traffic flow group number; The traffic group number of the technical station is automatically adjusted according to the strong traffic group number and the weak traffic group number.

2. The method for adjusting the railway technical station group number according to claim 1, characterized in that: The step of automatically adjusting the traffic group number of the technical station according to the strong traffic group number and the weak traffic group number is specifically as follows: Splitting the strong traffic flow group number downwards; Alternatively, the weak traffic flow group numbers are merged upwards; Alternatively, the strong traffic flow group numbers are split downwards, and the weak traffic flow group numbers are merged upwards.

3. The method for adjusting the railway technical station group number according to claim 2, characterized in that: The steps of splitting the strong traffic group numbers downwards, merging the weak traffic group numbers upwards, and splitting the strong traffic group numbers downwards and merging the weak traffic group numbers upwards, automatically splitting or merging the traffic group numbers whose traffic intensity at each technical station on the road network is outside the reasonable standard, and reducing the number of the strong traffic group numbers or the weak traffic group numbers on the entire road.

4. The method for adjusting the railway technical station group number according to claim 3, characterized in that: The step of splitting the strong traffic flow group number downwards is specifically as follows: The strong car flow group number z transferred into technical station A u , the stations within the group number arrival area are SD u ={sd1, sd2, ……, sd m}, the technical stations within the group number arrival area are SJ u ={sj1, sj2, ……, sjn}, where n < m, the pivot station of the group number is u, and the car flow intensity of the group number is Q u , the upper bound of the reasonable car flow intensity of the group number is Q max , the lower bound of the reasonable car flow intensity of the group number is Q min ; Calculate technical stations A to SJ in sequence u The number of technical stations that the traffic flow path of each technical station passes through JV = {jv1, jv2, ..., jv n } and mileage L = {l1,l2,…,l n }; SJ is sorted in descending order according to the number of technical stations JV and mileage L. u Sort by Calculate technical stations A to SJ in sequence u The vehicle paths of each technical station in the domain are connected to the SD u Make the intersection to form a new group number to the domain set ND u ={nd1,nd2,……,nd n }; Calculate the traffic intensity of each new group number QN = {qn1, qn2, ..., qn n }; Determine qn i Is it greater than the lower limit Q of the group strength? min If so, determine the split to form a new group number z i , and update the original strong traffic group number to the domain SD u =SD u -nd u , traffic intensity Q u =Q u -qn u ; Determine the traffic intensity Q u Is it greater than the upper limit of group strength Q? max If not, then output the group number z after splitting u And confirm the new group number z formed by the split i , including the arrival domain set of each group number and the traffic intensity.

5. The method for adjusting the railway technical station group number according to claim 4, characterized in that: The step of merging the weak traffic flow group numbers upwards is specifically as follows: The weak traffic group number set ZR transferred to technical station A = {zr1,zr2,……,zr n }, where n is the number of weak traffic groups at present, and the upper bound of the traffic intensity of reasonable groups is Q max , the lower bound of the reasonable group number traffic intensity is Q min ; The merging order of the weak traffic group numbers is sorted in descending order according to the traffic flow path from technical station A to each weak traffic group number pivot station through the group number pivot station number and mileage; Determine group number zr i Is the traffic intensity lower than Q min If yes, calculate the technical station A to group number zr i The set of other group numbered pivot stations on the pivot station's traffic path ZS = {zs1, zs2, ..., zs e }; Determine whether ZS is an empty set. If not, set group number zr i With the previous group number z e Merge and update the upper group number z synchronously e The scope of the area and the intensity of traffic flow; Output the upward merged traffic group number set Z = {z1,z2,……,z m }, including the domain set of each group number and the traffic intensity.

6. The method for adjusting the railway technical station group number according to claim 5, characterized in that: The steps of calculating the traffic flow intensity of the technical station according to the basic data to obtain the strong traffic flow group number and the weak traffic flow group number are specifically as follows: The freight ticket traffic data in the basic data are distributed to each technical station of the road network according to the traffic path, and combined with the group number setting of the technical stations of the whole road, the traffic with or without shunting passing through each technical station is calculated; According to the arrival of the traffic flow at each technical station, the traffic flow is included in the corresponding group number of the technical station, and the traffic flow intensity of each group number is calculated in turn to obtain the strong traffic flow group number and the weak traffic flow group number.

7. The method for adjusting the railway technical station group number according to claim 6, characterized in that: The steps of distributing the freight ticket traffic data in the basic data to each technical station of the road network according to the traffic path, and calculating the traffic with or without shunting passing through each technical station in combination with the group number setting of the technical stations of the whole road are specifically as follows: Transfer the designated traffic flow list WF into the road network = {f1,f2,……,f w } and the list of technical stations of the road network SA = {s1, s2, ..., s m }; Create a shunting flow set YFs and a non-shunting flow set WFs for each technical station s in SA; Query traffic flow j The specific traffic path R f , extract path R f The list of special technology stations S = {s1, s2, ..., s n }; Determine the traffic flow j Does it meet the departure and direct train formation plan? If so, the traffic flow f j Add to the unadjusted traffic flow set WFs of each technical station in the list S in turn; Extract the first technical station s1 in the list S, and set the current transfer technical station to s d ,s d The serial number in list S is d; Retrieve current technical stations d The group number dictionary Dict, according to the traffic flow f j Arrival station D, retrieve the traffic flow f in Dict j At the Technology Stations d The belonging group number Z, obtain the group number fulcrum station s corresponding to group number Z z ,s z The serial number in list S is z; Determine whether d is less than z. If so, change the traffic flow f j Join Technology Stations d 、s z In the set of shunted traffic flows YFs, s d =s z , d = z; The extraction list S contains the traffic flow set YFs which does not contain traffic flow f j A collection of technical stations q ={s1,s2,……,s t }, the traffic flow f j Join S q In the set of unadjusted traffic flows WFs of each technical station; Output the shunting flow table YFs and the non-shunting flow table WFs of each technical station s in the set SA.

8. The method for adjusting the railway technical station group number according to claim 7, characterized in that: According to the arrival of the traffic flow at each technical station, the traffic flow is included in the corresponding group number of the technical station, and the traffic flow intensity of each group number is calculated in turn to obtain the strong traffic flow group number and the weak traffic flow group number, which are specifically as follows: The set of technical stations transferred into the road network SA = {s1, s2, ..., s m }; Reading Technology Stations i The list of shunted train flows YFs = {f1,f2,……,f w }; Reading Technology Stations i The group number traffic flow destination list Z = {z1,z2,……,z n }, create i The set of directional traffic flow YF = {YF1, YF2, ..., YF n }, where YF X For each group number, go to z x There is a collection of shunting flows; establish s i The list of shunting traffic in different directions YV = {y1, y2, ..., y n }, where y x For each group number, go to z x There are shunting flow values; Get the traffic flow f in the traffic flow list YFs j , retrieve the group number list Z, and obtain the traffic flow f j The group number of the arrival station D is z d , the traffic flow f j Join group number z d The corresponding traffic flow set YF d middle; Calculate Z s Each group number has shunting flow; y i =Σf, any f∈YF i , f is the group number z i There are traffic flows in the traffic flow list; Output the list of shunting flows with different group numbers and destinations at each technical station s in SA YF = {YF1, YF2, ..., YF n }, and the shunting traffic list YV = {y1,y2,……,y n }.

9. The method for adjusting the railway technical station group number according to any one of claims 1 to 8, characterized in that: The basic data include: freight network data, freight vehicle flow data, vehicle flow route data, vehicle flow group number data and departure and direct marshaling plan data.

10. A railway technical station group number adjustment system, characterized in that: include: A basic data acquisition module is used to acquire basic data; A traffic flow intensity calculation module, used to calculate the traffic flow intensity of the technical station according to the basic data, and obtain a strong traffic flow group number and a weak traffic flow group number; The group number automatic adjustment module is used to automatically adjust the traffic group number of the technical station according to the strong traffic group number and the weak traffic group number.

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