A planning and dispatching system and processing method for interconnected urban rail transit lines

Abstract

The present invention provides a system and method for dispatching a line network of urban rail transit. The existing urban rail transit line network dispatching system has only three command levels. When the line network needs to be dispatched and adjusted, the line network dispatcher shall give an adjustment plan. The line network dispatcher needs to contact each line dispatcher one by one for dispatching and commanding, and the line dispatching is adjusted within a single line. The urban rail transit line network dispatching system provided by the present invention includes four command levels, namely line network dispatching, line dispatching, station dispatching, and signal control; a method for combining line dispatching with line network dispatching is proposed, which can compile line network-level operation diagrams for multiple lines at the same time, and realize the dispatching method for the operation of trains in the interconnected full line network, breaking through the traditional strategy of urban rail transit driving command based on a single line, and realizing the safe operation of different trains on different lines, especially the seamless connection during the cross-line process, which plays an extremely important role in improving the efficiency of interconnected rail transit transportation and ensuring operation safety.

Description

Technical Field

[0001] The present invention relates to the technical field of urban rail transit, and in particular to a dispatching system and method in urban rail transit. Background Art

[0002] With the realization of urban rail transit line interconnection technology and the emergence of line network operation mode, the conventional single-line dispatching mode can no longer meet the needs of line network operation. This is mainly reflected in the fact that single-line operation only supports vehicle dispatching and operation work on this line, and cannot meet the dispatching needs of cross-line vehicle operation proposed by interconnection technology. Cross-line vehicles that appear in cross-line operation must be dispatched from the perspective of the line network.

[0003] This invention is applied to the field of rail transit, breaking through the traditional strategy of urban rail transit traffic command based on a single line, proposing a method of combining line dispatching with line network dispatching, and realizing a dispatching method for the operation of trains in the entire interconnected network. It assists traffic dispatching personnel in managing and dispatching trains in the entire network and handling global dispatching and coordination issues. It plays an extremely important role in improving the efficiency of interconnected rail transit transportation and ensuring operational safety.

[0004] The existing command level is three-layer, line dispatching, station dispatching, and signal control. When the line network needs to be dispatched and adjusted, the line network dispatcher will give an adjustment plan. The line network dispatcher needs to contact the dispatchers of each line one by one for dispatching and commanding. The line dispatching is adjusted within a single line. The dispatching and commanding platform with a three-level architecture is only suitable for the driving command mode based on a single line, and cannot meet the driving command mode of unified dispatching of the line network after the interconnection and networking operation of urban rail transit.

[0005] Due to the differences between the signal systems of different lines, the interconnected operation is to achieve the safe operation of different trains on different lines, especially the seamless connection during the cross-line process. Therefore, the dispatching personnel need to pay real-time attention to the handover and access of cross-line trains at the cross-line station in order to handle the sudden situation of the line in time. The existing dispatching system is relatively independent and cannot handle sudden situations on two or more lines at the same time.

[0006] Traditional line operation only has a single line operation mode, while interconnected network operation can realize multiple operation modes such as shared line, cross-line, cross-line fast and slow trains, etc. After cross-line operation, trains on other lines will run on this line, and trains on this line will also go to other lines to carry passengers. For such an operation mode, the current line network dispatchers can only conduct line network dispatching and command through traditional methods such as dispatching orders and telephone calls, which lacks direct and efficient means and cannot meet the needs of urban rail transit line network operation.

[0007] Cross-line trains need to operate across two or more lines, and the planned operation information of the cross-line trains is required on both lines. The traditional operation diagram scheduling system can only prepare plans for a certain line separately, and cannot prepare network-level operation diagrams for multiple lines at the same time. Summary of the invention

[0008] In view of this, the present invention provides an urban rail transit network dispatching and commanding system for the deficiencies and uninvolved areas of the prior art. When interconnected cross-line network operation is realized on multiple lines of different standards, the system's operating mode is changed from the original single-line mode to a networked cross-track mode. In order to meet the needs of networked line network operation, an efficient and convenient adjustment method between lines and lines, and between line network dispatching and line dispatching is provided to solve the overall dispatching and coordination problems of the line network, and a line network dispatching and commanding method is designed.

[0009] The specific technical solutions are as follows:

[0010] An urban rail transit line network dispatching system, characterized in that it includes four levels of command layers, namely line network dispatching, line dispatching, station dispatching, and signal control; wherein the line network dispatching layer includes: line network planning workstation, line network dispatching workstation, line network application server, line network database server, and line network interface server;

[0011] The line network planning workstation, line network scheduling workstation and line network database server are respectively connected to the line network application server through the network; there are multiple line network interface servers, which can be set up separately according to each line, and are all connected to the line network application server through the network.

[0012] Furthermore, the line network planning workstation is used for unified preparation of line network offline plans, unified issuance of line network offline plans, and plan preparation verification; the line network scheduling workstation is used for real-time daily operation status monitoring of the line network, acquisition of the line network daily plan, adjustment, editing and verification of the line network daily plan, and issuance of the line network daily plan; the line network application server is used to receive the information flow sent by the line network scheduling workstation to the line scheduling, and forward it to the line network interface server, receive the information flow of each line forwarded by the line network interface server, and forward it to the line network scheduling workstation; the line network database server is used to store the line network offline plan, store the line network daily adjustment plan, and store the line network historical plan; the line network interface server is used to verify the uniqueness of the information sent from the line network to the line and then forward it, and to verify the uniqueness of the information sent from the line to the line network and then forward it.

[0013] A method for scheduling an urban rail transit network is applied to an urban rail transit network scheduling system, and is characterized in that it includes an offline network scheduling method and an online network scheduling method, wherein:

[0014] The line network offline plan scheduling method comprises: uniformly drawing the offline plan of all interconnected line trains on the line network center operation diagram, including the cross-line operation train plan and the line operation train plan; performing the plan verification at the line network level, including the single line plan verification and the cross-line operation plan verification; compiling the offline plan of the entire line network, and issuing the pre-processing through the line network center operation diagram, synchronizing the offline plan of each single line, and issuing it to each individual line through the line network structure; the single-line train automatic monitoring ATS receives the offline operation diagram issued by the line network dispatcher, performs a secondary line verification, and after the verification is passed, stores it locally, and sends a receipt to the line network center at the same time;

[0015] The line network online planning and scheduling method comprises: a line network online operation diagram, wherein the line network online operation diagram comprises a line network operation plan for the day, a line network real-time plan and a line network adjustment plan.

[0016] Furthermore, the issuance and receipt processing of the line network offline plan includes the following steps:

[0017] When the offline plan is issued, the line network center first synchronizes the offline plan of the entire line network into the plan of each line, and then sends it to the line network structure. The line network structure distributes it to each line according to the planned line number; the line train automatic monitoring ATS receives the offline plan, performs line verification on the offline plan, and sends a failure receipt to the line network structure when the verification fails. When the verification succeeds, it is stored locally and a success receipt is sent to the line network structure at the same time;

[0018] When the line network center receives a receipt of line verification failure, it attempts to issue the offline plan again. After N failures, it notifies each workstation in the line network that the line plan has failed to be sent. When receiving a receipt of successful verification of each line, it first performs a time and drawing number check to determine whether it is a receipt for the issuance of the current offline plan. Then it performs a line network integrity check to determine whether successful receipts for all lines have been received. If the check is completed, it notifies each workstation in the line network that the line plan has been successfully sent, otherwise it notifies each workstation in the line network that the line plan has failed to be sent. The N is a natural number greater than or equal to 2.

[0019] Furthermore, in the line network online planning and scheduling method,

[0020] The specific daily network operation plan is as follows: before each line is operated, the line network dispatcher uniformly specifies the daily operation diagram to form the daily line network operation plan, and uniformly issues it to each line through the line network structure. The line network structure distributes it to each line according to the plan content. After the line train automatic monitoring ATS successfully verifies the line number ID, it obtains the offline plan from the local through the unique constraint of the operation diagram number to form the daily plan for the train dispatching system to execute;

[0021] The line network real-time plan is specifically as follows: when each line is running, the operating data of each line is sent to the line network center in real time through the line network structure, including the real-time position information of the train and the actual line information, and the information content includes the unique constraint line number ID; the line network dispatcher summarizes and forms a line network real-time operation diagram, provides monitoring and alarm of the real-time operation status of the trains in the entire line network, can detect plan deviations in real time, and monitor the operation of cross-line trains; when a dispatching operation is required, it is initiated by the line network dispatcher and sends the daily plan acquisition information to the line dispatcher, and the line dispatcher responds after receiving the information and sends the daily operation plan to the line network dispatcher; after the line network dispatcher obtains the plan of each line, it first checks the validity of the data of each line, and then forms an operation line chain list for each line, and then synchronizes the line network real-time operation diagram to form a sub-graph operation line chain list and a cross-line operation line chain list of the line network real-time operation diagram;

[0022] The line network adjustment plan is specifically as follows: the line network real-time operation diagram supports networked operation organization and operation adjustment, and the line network traffic dispatching adjusts the operation diagram for the single-line operation plan and the cross-line operating vehicle plan; the adjustment measures include train stop time, change of cross-line train operation routes, temporary increase or cancellation of cross-line trains; when the line network adjustment is completed, the line network dispatching will synchronize the line network adjustment plan diagram for the day with data that conforms to the logic of the single-line operation diagram based on the effectiveness check of the line network adjustment plan for the day, forming the daily adjustment plan for each line, which will be issued to each line through the line network structure, and each line will receive it and verify and execute it.

[0023] Furthermore, the verification of the real-time operation diagram of the line network includes checking for conflicts between cross-line trains and trains on the same line, checking whether the access and handover times of cross-line trains match, minimum time verification, checking for track conflicts, checking the integrity of the operating lines, and checking the integrity of the train numbers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the system structure of the urban rail transit network dispatching system.

[0025] Figure 2 It is the network structure of the urban rail transit network dispatching system.

[0026] Figure 3 It is an offline planning and scheduling method for urban rail transit network.

[0027] Figure 4 It is the process of issuing and receiving receipts for offline plans of urban rail transit network.

[0028] Figure 5 Provide an online planning and scheduling method for urban rail transit network planning.

[0029] Figure 6 Issue the process for launching the plan.

[0030] Figure 7 Provides real-time monitoring and alarm process for line network trains.

[0031] Figure 8 The process of obtaining the line network plan. DETAILED DESCRIPTION

[0032] In order to make those skilled in the art better understand the technical solution of the present invention, and make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings of the embodiments. It will be clear to those skilled in the art that the present invention can also be implemented in the absence of some or all of these specific details. In other cases, in order not to make the present invention unnecessary unclear, known processing steps and / or structures are not specifically described. In addition, although the present invention is described in conjunction with specific embodiments, it should be understood that the description is not intended to limit the invention to the described embodiments. On the contrary, the description is intended to cover substitutions, improvements and equivalents that may be included in the spirit and scope of the present invention as defined by the appended claims.

[0033] The present invention provides a system structure for dispatching urban rail transit lines. Figure 1 As shown in the figure, the system command level has changed from three layers to a four-layer architecture, which is to establish a higher-level dispatching system on top of the existing line dispatching of urban rail transit to form a line network dispatching system. Line dispatching is responsible for the functions related to the traditional rail transit train automatic monitoring ATS (Automatic Train Supervision) and interfaces with the line network dispatching system. The line network dispatching system is mainly responsible for the coordination and processing of cross-line operations.

[0034] The line network framework adds a line network scheduling layer on the basis of the existing three-layer architecture to achieve a four-layer structure. The line network scheduling layer includes: line network planning workstation, line network scheduling workstation, line network application server, line network database server, and line network interface server. The line network planning workstation, line network scheduling workstation and line network database server are connected to the line network application server through the network; there are multiple line network interface servers, which can be set up separately according to each line, and are all connected to the line network application server through the network.

[0035] The functions of the line network planning workstation include: unified preparation of line network offline plans; unified issuance of line network offline plans; plan preparation verification function. The functions of the line network scheduling workstation include: real-time operation status monitoring of the line network on the day; acquisition of the line network daily plan; adjustment, editing and verification of the line network daily plan; issuance of the line network daily plan. The functions of the line network application server include: the line network application server receives the information flow sent by the line network scheduling to the line scheduling, and forwards it to the line network interface server; the line network application server receives the information flow of each line forwarded by the line network interface server, and forwards the line network scheduling. The functions of the line network database server include: storage of line network offline plans; storage of line network daily adjustment plans; storage of line network historical plans. The functions of the line network interface server include: the line network interface server verifies the uniqueness of the information sent from the line network to the line before forwarding it; the line network interface server verifies the uniqueness of the information sent from the line to the line network before forwarding it.

[0036] Embodiment 1:

[0037] Offline network scheduling methods, such as Figure 3 As shown in the figure, the offline scheduling process of the line network includes the following steps:

[0038] Draw a unified offline plan for all interconnected lines on the operation diagram of the line network center, including the cross-line operation train plan and the line operation train plan; perform network-level plan verification, which not only meets the single-line plan verification function but also the cross-line operation plan verification function; prepare the offline plan for the entire line network, issue it for pre-processing through the network center operation diagram, synchronize it with the offline plan for each single line, and issue it to each individual line through the network structure; the single-line ATS receives the offline operation diagram issued by the line network dispatcher, and needs to perform a secondary line verification. After the verification is passed, it is stored locally and a receipt is sent to the network center at the same time.

[0039] like Figure 4 The issuance and receipt processing of the offline plan of the line network shown includes the following steps:

[0040] When the offline plan is issued, the line network center first synchronizes the offline plan of the entire line network into plans for each line, and then sends it to the line network structure. The line network structure will distribute it to each line according to the planned line number; the line ATS receives the offline plan, performs line verification on the plan, and sends a failure receipt to the line network structure if the verification fails. If the verification succeeds, it is stored locally and a success receipt is sent to the line network structure at the same time.

[0041] When the line network center receives a failed receipt for a line, it will try to issue it again. After multiple failures, it will notify each workstation in the line network that the line plan has failed to be sent. When a successful receipt is received for each line, it will first perform a time and drawing number check to determine whether it is a receipt for the current offline plan. Then it will perform a line network integrity check to see whether successful receipts for all lines have been received. If the check is completed, it will notify each workstation in the line network that the line plan has been sent successfully. Otherwise, it will notify each workstation in the line network that the line plan has failed to be sent.

[0042] The data structure definition of the cross-line running line:

[0043] 1) Data structure definition of cross-line running line in a single line

[0044] It is necessary to add the definition of cross-line starting station node information, cross-line access station node information, cross-line access train number information, cross-line handover station node information, cross-line terminal station node information, and handover train number information.

[0045] 2) Data structure definition of cross-line operation lines in the network

[0046] Each main line node information needs to add sub-map number, line number, incoming train number, and outgoing train number.

[0047] Embodiment 2:

[0048] Online planning and scheduling methods for line networks, such as Figure 5 As shown in the scheduling process, the line network online operation diagram is divided into three parts, namely the line network operation plan diagram for the day, the line network real-time plan and the line network adjustment plan.

[0049] like Figure 6 As shown in the figure, the day's operation plan is issued. Before each shift, the line network dispatcher needs to uniformly specify the day's operation diagram to form the day's operation plan, and issue it to each line through the line network structure. The line network structure will be distributed to each line according to the plan content. After the line ATS successfully verifies the line number ID, it will obtain the offline plan from the local through the unique constraint of the operation diagram number to form the day's plan for execution by the driving dispatch system.

[0050] like Figure 7 As shown in the figure, the network train real-time monitoring and alarm, during each shift, the operation data of each line is sent to the network center in real time through the network structure, including the real-time position information of the train and the actual line information. The information content includes the unique constraint line number ID; the network dispatching system summarizes and forms a real-time network operation diagram, providing real-time monitoring and alarm of the operation status of trains in the entire network, which can detect plan deviations in real time and monitor the operation of cross-line trains.

[0051] like Figure 8The acquisition of the line network plan shown in the figure is initiated by the line network dispatcher when a dispatch operation is required, and the line network dispatcher sends the day's plan acquisition information to the line. After receiving the information, the line network dispatcher responds and sends the day's operation plan to the line network center. After the line network dispatcher obtains the plan of each line, it first checks the validity of the data of each line, and then forms the operation line chain list of each line; then it synchronizes the line network real-time operation diagram to form the sub-graph operation line chain list and the cross-line operation line chain list of the line network real-time operation diagram.

[0052] The adjustment, issuance and execution of the line network plan include:

[0053] The real-time operation diagram of the line network supports network operation organization and operation adjustment. The line network train dispatching can not only adjust the single line operation diagram, but also adjust the operation diagram for the cross-line operation vehicle plan. Adjustment measures include adjusting the train stop time, changing the cross-line train operation route, temporarily adding or canceling cross-line trains, etc.

[0054] When the line network adjustment needs to be executed, the line network dispatcher will synchronize the daily adjustment plan diagram of the entire network with data that conforms to the logic of the single-line operation diagram based on the effectiveness check of the daily line network adjustment plan, form the daily adjustment plan for each line, and issue it to each line through the line network structure.

[0055] After each line is received through the wire network structure, the verification is executed.

[0056] The verification of the real-time operation diagram of the line network includes: conflict between cross-line trains and trains on the same line; checking whether the access and handover times of cross-line trains match; minimum time verification (including minimum tracking interval, minimum pure return time, minimum stop time, etc.); checking track conflicts; checking the integrity of the operating line (return, entry and exit sections, direction); checking the integrity of the train number.

[0057] The above is an exemplary description of the present invention. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A method for dispatching an urban rail transit network, applied to an urban rail transit network dispatching system, It is characterized in that It includes a line network offline planning and scheduling method and a line network online planning and scheduling method, wherein: The line network offline plan scheduling method comprises: uniformly drawing the offline plan of all interconnected line trains on the line network center operation diagram, including the cross-line operation train plan and the line operation train plan; performing the plan verification at the line network level, including the single line plan verification and the cross-line operation plan verification; compiling the offline plan of the entire line network, and issuing the pre-processing through the line network center operation diagram, synchronizing the offline plan of each single line, and issuing it to each individual line through the line network structure; the single-line train automatic monitoring ATS receives the offline operation diagram issued by the line network dispatcher, performs a secondary line verification, and after the verification is passed, stores it locally, and sends a receipt to the line network center at the same time; The line network online planning and scheduling method comprises: a line network online operation diagram, wherein the line network online operation diagram comprises a line network operation plan for the day, a line network real-time plan and a line network adjustment plan; The issuance and receipt processing of the line network offline plan includes the following steps: When the offline plan is issued, the line network center first synchronizes the offline plan of the entire line network into the plan of each line, and then sends it to the line network structure. The line network structure distributes it to each line according to the planned line number; the line train automatic monitoring ATS receives the offline plan, performs line verification on the offline plan, and sends a failure receipt to the line network structure when the verification fails. When the verification succeeds, it is stored locally and a success receipt is sent to the line network structure at the same time; When the line network center receives a receipt of line verification failure, it attempts to issue the offline plan again. After N failures, it notifies each workstation in the line network that the line plan has failed to be sent. When receiving a receipt of successful verification of each line, it first performs a time and drawing number check to determine whether it is a receipt for the issuance of the current offline plan. Then it performs a line network integrity check to determine whether successful receipts for all lines have been received. If the check is completed, it notifies each workstation in the line network that the line plan has been successfully sent, otherwise it notifies each workstation in the line network that the line plan has failed to be sent. The N is a natural number greater than or equal to 2.

2. The urban rail transit network scheduling method according to claim 1, It is characterized in that In the line network online planning and scheduling method, The line network operation plan for the day is specifically as follows: before each line is operated, the line network dispatcher uniformly specifies the operation diagram for the day, forms the line network operation plan for the day, and uniformly issues it to each line through the line network structure. The line network structure distributes it to each line according to the plan content. After the line train automatic monitoring ATS successfully verifies the line number ID, it obtains the offline plan from the local through the unique constraint of the operation diagram number, and forms the plan for the day for the train dispatching system to execute; The line network real-time plan is specifically as follows: when each line is running, the operation data of each line is sent to the line network center in real time through the line network structure, including the real-time position information of the train and the actual line information, and the information content includes the unique constraint line number ID; The line network dispatching is summarized into a real-time line network operation diagram, which provides real-time monitoring and alarm of the train operation status of the entire line network, can detect plan deviations in real time, and monitor the operation of cross-line trains; When a dispatch operation is required, the line network dispatcher initiates the operation and sends the day's plan acquisition information to the line dispatcher. After receiving the information, the line dispatcher responds and sends the day's operation plan to the line network dispatcher. After the line network dispatcher obtains the plan of each line, it first checks the validity of the data of each line, then forms the running line list of each line, and then synchronizes the line network real-time running diagram to form the sub-graph running line list and cross-line running line list of the line network real-time running diagram; The line network adjustment plan is specifically as follows: the line network real-time operation diagram supports network operation organization and operation adjustment, and the line network traffic dispatching adjusts the operation diagram for the single line operation plan and the cross-line operation vehicle plan; the adjustment measures include train stop time, change of cross-line train operation route, temporary increase or cancellation of cross-line trains; After the line network adjustment is completed, the line network dispatcher will synchronize the line network adjustment plan diagram for the day with data that conforms to the logic of the single-line operation diagram based on the validity check of the line network adjustment plan for the day, forming the daily adjustment plan for each line, which will be issued to each line through the line network structure. After each line receives it, it will be verified and executed.

3. The urban rail transit network scheduling method according to claim 1, It is characterized in that The verification of the real-time operation diagram of the line network includes checking the conflict between cross-line trains and trains on the same line, checking whether the access and handover times of cross-line trains match, minimum time verification, checking track conflicts, checking the integrity of the operating lines, and checking the integrity of the train numbers.

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