Train section belonging dispatching center management method and system based on LTE dynamic reconfiguration

Abstract

The application provides a train section belonging dispatching station management method and system based on LTE dynamic reorganization, comprising: a data acquisition module acquires train position data and sends the train position data to a CAD computer-aided dispatching server. The CAD computer-aided dispatching server sends the train position data to a corresponding dispatching station after preprocessing the train position data. The dispatching station initiates a dynamic reorganization request of a current on-board station group to a cluster group controller in an LTE cluster core network according to the preprocessed train position data, and the cluster group controller responds to the dynamic reorganization request, thereby completing dynamic management of train belonging jurisdiction. The application solves the problem of on-board station group conversion between different belonging dispatching stations, reduces the waste of group number resources, and reduces the operation delay caused by back-and-forth switching of different belonging group numbers.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a train section belonging dispatch center management method and system based on LTE dynamic reorganization. BACKGROUND

[0002] The track traffic LTE wireless dispatch center system is generally divided into dispatch centers of sections such as main lines, vehicle depots and parking lots. The train dispatch center is responsible for the dispatch communication of the main line train, and the vehicle depot and parking lot dispatch center is responsible for the dispatch communication management of the train in the vehicle depot and parking lot. In actual operation, the train-mounted station needs to be registered to different belonging dispatch centers according to the train position to realize the voice and data communication of the train. When the train enters the vehicle depot from the main line, the vehicle depot group switches the vehicle depot group, and vice versa. When the train enters the main line for operation from the vehicle depot, the train-mounted station needs to be switched to the main line group. In this process, a certain number of group number resources are occupied, and the train-mounted station belonging to the vehicle depot or parking lot is switched to the main line train-mounted station to register the group operation failure and occupy multiple group number resources.

[0003] Patent document CN111891182A discloses a subway dispatching method based on segmentation, which includes a dispatch server obtaining train position raw information from a train position information device, processing the train position raw information, and sending the processed information to a train dispatch center and a locomotive station.

[0004] However, the method of patent document CN111891182A has the problems of train-mounted station group switching and occupation of multiple group number resources. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a train section belonging dispatch center management method and system based on LTE dynamic reorganization.

[0006] According to the train section belonging dispatch center management system based on LTE dynamic reorganization provided by the present application, the system comprises a data acquisition module, a CAD computer-aided dispatch server, a dispatch center and an LTE cluster core network.

[0007] The data acquisition module acquires train position data and sends it to the CAD computer-aided dispatch server.

[0008] The CAD computer-aided dispatch server pre-processes the train position data and sends it to the corresponding dispatch center.

[0009] The dispatching station initiates a dynamic reorganization request of a current vehicle station group to a cluster group controller in the LTE cluster core network according to the preprocessed train position data, and the cluster group controller responds to the dynamic reorganization request, thereby completing dynamic management of train jurisdiction.

[0010] Preferably, the train position data includes the number of trains on the current line, the car body number, the train number, the running direction and the current track position.

[0011] Preferably, the CAD computer-aided dispatching server includes a data processing module, a data storage module and a data sending module.

[0012] The data processing module is used to parse the collected train position data into a json data format, and update the home type and the current train position data of the corresponding train in the data storage module according to the car body number.

[0013] The data sending module synchronously sends the train position data in the data storage module to all dispatching station clients connected to the CAD computer-aided dispatching server.

[0014] Preferably, the dispatching station includes a main line train dispatching station, a parking lot dispatching station and a vehicle depot dispatching station; each dispatching station includes a data receiving module, a dynamic reorganization module and a data display module.

[0015] The data receiving module is used to receive the train position data sent by the CAD computer-aided dispatching server.

[0016] The dynamic reorganization module is used to load or remove a unique user identification number MDN of the dispatching station itself to the vehicle station group number GDN of the corresponding train.

[0017] The data display module is used to display the current position data of the train and the corresponding relationship between the car body number and the vehicle station group on the dispatching station interface, and synchronously update the displayed content to the data storage module in the CAD computer-aided dispatching server.

[0018] According to the train section home dispatching station management method based on LTE dynamic reorganization provided by the application, according to the train section home dispatching station management system based on LTE dynamic reorganization, the management method includes the following steps:

[0019] Step S1: collecting train position data and train information in and out of the main line;

[0020] Step S2: preprocessing and storing the train position data;

[0021] Step S3: According to the pre-processed train position data, the current vehicle-mounted station is dynamically grouped, and the dynamic management of the train jurisdiction is completed, and the current basic information of the train and the corresponding relationship with the vehicle-mounted station group are displayed.

[0022] Preferably, the train position data includes the number of trains on the current line, the car body number, the train number, the running direction, and the current track position.

[0023] Preferably, the step S2 includes the following sub-steps:

[0024] Step S2.1: The collected train position data is parsed into json data format;

[0025] Step S2.2: According to the car body number, update the ownership type and current train position data of the corresponding train in the data storage module;

[0026] Step S2.3: The updated ownership type and current train position data of the corresponding train are stored in the corresponding dispatching station client.

[0027] Preferably, the step S3 includes the following sub-steps:

[0028] Step S3.1: Receive the train position data sent by the CAD computer-aided dispatching server, and judge the train position and ownership type of the train;

[0029] Step S3.2: According to the train position, the current track area is divided into multiple sections;

[0030] Step S3.3: Load the unique user identification number MDN of the dispatching station into the group number GDN of the vehicle-mounted station of the corresponding train, and use the user identification number MDN as a dynamic member to dynamically group according to the current train position.

[0031] Preferably, each train is configured with only one group number; the multiple sections include the main line, the vehicle depot and the parking lot;

[0032] When the train position changes from the main line to the vehicle depot or the parking lot, the train is deregistered and the vehicle-mounted station group is dynamically exited by the train dispatching station;

[0033] When the train position changes from the vehicle depot or the parking lot to the main line, the train is registered and the vehicle-mounted station group is dynamically added by the train dispatching station.

[0034] Preferably, the dynamic reorganization module initiates a dynamic reorganization request of the current vehicle station group to the cluster group controller in the LTE cluster core network, the cluster group controller responds to the dynamic reorganization request, and the core network control calls a callback function interface to notify the operation result of the dispatch station, update the registration state or the deregistration state.

[0035] The core network updates the notification state to each terminal device in the current group in real time according to the group number of the current operation.

[0036] Compared with the prior art, the application has the following beneficial effects:

[0037] 1. The application configures a group number for each train vehicle station, dynamically groups the train vehicle stations under jurisdiction through an air interface, takes the user identification number corresponding to the dispatch station type as a dynamic member, dynamically groups according to the current train position, automatically joins or exits the default static group of the vehicle station, dynamically manages the train jurisdiction, reduces the number of authorized group numbers, and further reduces the waste of group number resources.

[0038] 2. The application synchronously updates the correspondence between the home identifier and the group number in the train data table structure in the CAD computer-aided dispatch server through real-time collection of train position data, solves the problem of group conversion of the vehicle station between different home area dispatch stations, and reduces the operation delay caused by back-and-forth switching of different home group numbers. BRIEF DESCRIPTION OF DRAWINGS

[0039] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0040] Figure 1 The figure is a block diagram of the LTE subway dispatching system of the application.

[0041] Figure 2 The figure is an interface control timing diagram of the dynamic reorganization module and the cluster group controller in the application. DETAILED DESCRIPTION

[0042] The application will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the application. These all belong to the protection scope of the application.

[0043] According to the train section home dispatch station management system based on LTE dynamic reorganization provided by the application, the train station is dynamically grouped according to the train position, the user identification number corresponding to the dispatch station type is taken as a dynamic member, and the default static group of the vehicle station is automatically joined or exited. Figure 1As shown, it comprises: a data acquisition module, a CAD computer-aided dispatch server, a dispatch console and an LTE cluster core network. The data acquisition module acquires train position data and sends it to the CAD computer-aided dispatch server, wherein the train position data includes the number of trains on the current line, the car body number, the train number, the running direction and the current track position. Specifically, it includes access to the ATS train position server through RJ45 network cable, acquires train position data packets through real-time Modbus TCP protocol, the packets contain the above train position data, and finally the data is transmitted to the CAD computer-aided dispatch server.

[0044] The CAD computer-aided dispatch server sends the preprocessed train position data to the corresponding dispatch console. Specifically, the CAD computer-aided dispatch server includes a data processing module, a data storage module and a data sending module. The data processing module is used to parse the collected train position data into json data format, and update the ownership type and current train position data of the corresponding train in the data storage module according to the car body number. The data sending module synchronously sends the train position data in the data storage module to all dispatch console clients connected to the CAD computer-aided dispatch server.

[0045] The dispatch console initiates a dynamic reorganization request for the current train group in the cluster group controller in the LTE cluster core network according to the preprocessed train position data, and the cluster group controller responds to the dynamic reorganization request, thereby completing the dynamic management of the train ownership jurisdiction. Among them, the dispatch console includes the main line train dispatch console, the parking lot dispatch console and the vehicle section dispatch console. Each dispatch console includes a data receiving module, a dynamic reorganization module and a data display module. Specifically, the data receiving module is used to receive the train position data sent by the CAD computer-aided dispatch server. The dynamic reorganization module is used to load or remove the unique user identification number MDN of the dispatch console itself to the train group number GDN of the corresponding train. The data display module is used to display the current position data of the train on the dispatch console interface and the corresponding relationship between the car body number and the train group, and synchronously update the displayed content to the data storage module in the CAD computer-aided dispatch server.

[0046] Further, when receiving the train position data information from the data sending module, the dispatching station first judges the train position and which type of dispatching attribution it belongs to, the attribution types including main line driving dispatching, depot dispatching and parking lot dispatching, the depot and the parking lot being referred to as the depot and the parking lot, three sections including the main line, the parking lot and the depot being divided according to the train position of the rail transit. When the train position changes from the main line to the depot or the parking lot, the driving dispatching station logs off the train and performs dynamic exit of the train on-board station group, and when the train position changes from the depot and the parking lot to the main line, the driving dispatching station logs on the train and performs dynamic entry of the train on-board station group. The whole process is completed by using the dynamic reorganization interface module to operate the train on-board station group number, and the dynamic reorganization module loads the unique user identification number MDN of the dispatching station to the group number GDN of the corresponding train, the dispatching station initiates the dynamic reorganization interface operation step, that is, increases or deletes the dynamic member, the core network cluster group controller receives the dynamic reorganization request initiated by the dispatching station, and the core network control calls the callback function interface to notify the operation result of the dispatching station. For the group number of the current operation, the core network updates and notifies each terminal device in the current group. The subway driving dispatching is composed of multiple dispatching station seats, since the dispatching station is connected to the core network device through the wired network, the real-time performance is faster than that of the wireless air interface access of the on-board station, and each dispatching station independently performs the dynamic reorganization operation on the same group, so the number of dispatching stations can be dynamically adjusted, and the core network can real-time notify other dispatching stations in the group.

[0047] The present application aims to solve the problem of different jurisdiction of dispatching stations based on different positions of trains in the field of urban rail transit by using a group management method based on LTE dynamic reorganization triggered by train position. Only one group number is configured for the on-board station of each train, and the on-board stations of the trains under jurisdiction are dynamically grouped through the air interface. The user identification number of the corresponding dispatching station type is used as the dynamic member to dynamically group the on-board stations, and the on-board stations are automatically added or exited from the default static group, so as to realize dynamic management of the jurisdiction of the trains and reduce the number of authorized group numbers.

[0048] According to the train section attribution dispatching station management method based on LTE dynamic reorganization provided by the present application,

[0049] The management method comprises the following steps:

[0050] Step S1: Collecting train position data and train entering and exiting main line information. The train position data includes the number of trains on the current line, the train body number, the train number, the running direction and the current track position. Specifically, RJ45 network cable is connected to the train position server, and Modbus TCP protocol is used to collect train position data in real time. The data packet contains basic train information such as the number of trains on this line, the train body number, the train number, the running direction and the current track position.

[0051] Step S2: Preprocessing and storing the train position data. Step S2 includes the following sub-steps:

[0052] Step S2.1: The collected train position data is parsed into json data format, that is, the original Modbus TCP binary data packet is parsed into json data format.

[0053] Step S2.2: According to the train body number, update the type of the corresponding train in the data storage module and the current train position data.

[0054] Step S2.3: The updated type of the corresponding train and the current train position data are stored in the corresponding dispatching station client.

[0055] Step S3: According to the preprocessed train position data, the current on-board station is dynamically grouped and managed, and the current basic information of the train and the corresponding relationship with the on-board station group are displayed. Step S3 includes the following sub-steps:

[0056] Step S3.1: Receive the train position data sent by the CAD computer-aided dispatching server, and determine the train position and the type of the train.

[0057] Step S3.2: According to the train position, the current track area is divided into multiple sections. The multiple sections include the main line, the vehicle depot and the parking lot.

[0058] Step S3.3: Load the unique user identification number MDN of the dispatching station to the on-board station group number GDN of the corresponding train, and use the user identification number MDN as a dynamic member to dynamically group according to the current train position. Each train on-board station is only configured with one group number. When the train position changes from the main line to the vehicle depot or the parking lot, the train is deregistered and the on-board station group is dynamically exited. When the train position changes from the vehicle depot or the parking lot to the main line, the train is registered and the on-board station group is dynamically added.

[0059] Specifically, as Figure 2As shown, the dynamic reorganization module initiates a dynamic reorganization request of the current vehicle station group to the cluster group controller in the LTE cluster core network, the cluster group controller responds to the dynamic reorganization request, and the core network control calls a callback function interface to notify the operation result of the dispatch station, update the registration state or log off state. For the group number of the current operation, the core network updates the notification state to each terminal device in the current group in real time. Finally, the train current position data and the correspondence between the car body number and the vehicle station group are displayed on the dispatch station interface, and the data storage module of CAD is updated synchronously.

[0060] The application synchronously updates the correspondence between the home identifier and the group number in the train data table structure in the CAD computer aided dispatch server by real-time acquisition of train position data equipment, and joins or exits the group by initiating a dynamic reorganization operation of the dispatch station, thereby solving the problem of group conversion between different home area dispatch stations of the vehicle station, achieving the economical use of group number resources, and solving the operation delay of back and forth switching of different home group numbers.

[0061] Those skilled in the art know that, in addition to implementing the system, device and each module thereof provided by the application in the form of pure computer readable program code, the same program can be realized in the form of logic gate, switch, application specific integrated circuit, programmable logic controller and embedded microcontroller by logically programming the method steps. Therefore, the system, device and each module thereof provided by the application can be considered as a hardware component, and the modules included therein for realizing various programs can also be considered as structures in the hardware component; the modules for realizing various functions can also be considered as both software programs for realizing methods and structures in the hardware component.

[0062] The specific embodiments of the application are described above. It should be understood that the application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the application. The embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

Claims

1. A train section home dispatch management system based on LTE dynamic reconfiguration, characterized in that, The system comprises a data acquisition module, a CAD computer-aided dispatch server, a dispatch station and an LTE cluster core network. The data acquisition module acquires train position data and sends the train position data to the CAD computer-aided dispatch server. The CAD computer-aided dispatch server pre-processes the train position data and sends the pre-processed train position data to a corresponding dispatch station. The dispatch station initiates a dynamic reorganization request for a cluster group controller in the LTE cluster core network according to the pre-processed train position data, and the cluster group controller responds to the dynamic reorganization request, thereby completing dynamic management of train jurisdiction. The train position data comprises the number of trains on a current line, a train body number, a train number, a running direction and a current track position. The dispatch station comprises a main line train dispatch station, a parking lot dispatch station and a vehicle depot dispatch station, each of which comprises a data receiving module, a dynamic reorganization module and a data display module. The data receiving module is configured to receive train position data sent by the CAD computer-aided dispatch server. The dynamic reorganization module is configured to load a unique mobile station number (MDN) of the dispatch station to a train on-board station group number (GDN). The data display module is configured to display train current position data and a corresponding relationship between a train body number and a train on-board station group on a dispatch station interface, and synchronously update the displayed content to a data storage module in the CAD computer-aided dispatch server. The CAD computer-aided dispatch server comprises a data processing module, a data storage module and a data sending module.

2. The LTE dynamic reconfiguration based train section home dispatch management system of claim 1, wherein, The data processing module is configured to parse the acquired train position data into a json data format, and update a corresponding train type and current train position data in the data storage module according to a train body number. The data sending module synchronously sends train position data in the data storage module to all dispatch station clients connected to the CAD computer-aided dispatch server. The train section jurisdiction dispatch station management system based on LTE dynamic reorganization according to any one of claims 1 to 2, and a management method comprises the following steps:

3. A method for managing a train section's home dispatch center based on LTE dynamic reconfiguration, characterized in that, Step S1: acquiring train position data and train information entering and exiting a main line; Step S2: pre-processing and storing the train position data; Step S3: dynamically grouping a current train on-board station according to the pre-processed train position data, thereby completing dynamic management of train jurisdiction, and displaying current basic information of the train and a corresponding relationship with a train on-board station group. The train position data comprises the number of trains on a current line, a train body number, a train number, a running direction and a current track position.

4. The LTE dynamic reconfiguration based train section home dispatch management method of claim 3, wherein, Step S2 comprises the following sub-steps:

5. The LTE dynamic reconfiguration based train section home base station management method of claim 4, wherein, Step S2.1: parsing the acquired train position data into a json data format; Step S2.2: updating a corresponding train type and current train position data in the data storage module according to a train body number; Step S2.3: synchronously storing the updated corresponding train type and current train position data to a corresponding dispatch station client. Step S3 comprises the following sub-steps:

6. The LTE dynamic reconfiguration based train section home base station management method of claim 4, wherein, ​ Step S3.1: receiving train position data sent by a CAD computer-aided dispatch server, and judging the train position and the type of the train; Step S3.2: dividing a current track area into multiple sections according to the train position; Step S3.3: loading a user identification number MDN unique to a dispatch station into a group number GDN of the on-board station of the corresponding train, taking the user identification number MDN as a dynamic member, and dynamically grouping according to the current train position.

7. The LTE dynamic reconfiguration based train section home base station management method of claim 6, wherein, Each train has only one group number of the on-board station; the multiple sections include a main line, a vehicle depot, and a parking lot; When the train position changes from the main line to the vehicle depot or the parking lot, the train is deregistered and the on-board station group is dynamically exited by the train dispatch station; When the train position changes from the vehicle depot or the parking lot to the main line, the train is registered and the on-board station group is dynamically added by the train dispatch station.

8. The LTE dynamic reconfiguration based train section home dispatch management method of claim 6, wherein, The dynamic reorganization module initiates a dynamic reorganization request of the current on-board station group to a cluster group controller in an LTE cluster core network, the cluster group controller responds to the dynamic reorganization request, a core network control calls a callback function interface to notify the operation result of the dispatch station, and the registration state or the deregistration state is updated; For the group number of the current operation, the core network updates and notifies the state to each terminal device in the current group in real time.

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