LKJ temporary data ground vehicle wireless transmission system

Abstract

The invention provides an LKJ temporary data ground vehicle wireless transmission system aiming at the problem that a current LKJ temporary speed-limiting scheduling command depends on current equipment and cannot realize mechanical control, and the LKJ temporary data ground vehicle wireless transmission system comprises the following steps: compiling temporary data according to a specified standard to form an LKJ temporary data file which can be identified and read by a vehicle-mounted LKJ; the LKJ temporary data file is decomposed according to regions and stored in an LKJ revelation management server located on the ground; when the train runs to a designated area, the train-mounted equipment sends train position information to the ground, and the LKJ revelation management server searches a matched corresponding LKJ temporary data file according to the train position information and transmits the corresponding LKJ temporary data file to the train-mounted LKJ through a train-ground wireless transmission channel covering all running sections of the train; the scheme is used for the wireless getting-on field of the temporary train speed limit command.

Description

Technical Field

[0001] The invention relates to the field of train onboard data replacement, and in particular to an LKJ temporary data ground train wireless transmission system. Background Art

[0002] The speed limit of railway is generally divided into line speed limit and temporary speed limit. The line speed limit is the speed limit given when designing the line, such as 200km / h speed limit, 350km / h speed limit, etc., and is related to line facilities such as rails, contact network, foundation and other fixed equipment facilities. Temporary speed limit is the speed limit that requires the train to run below the line design speed limit due to some reasons. It is generally divided into two types. One is a planned speed limit issued by the construction unit and the construction dispatcher; the other is a sudden temporary speed limit issued by the train dispatcher due to natural disasters, traction of special goods or equipment failure. The LKJ temporary data file compiled by the planned temporary speed limit is written into the IC card by the driver when on duty, and after verification and confirmation, it is loaded into the LKJ device on the train. For sudden temporary speed limits, the train dispatcher sends it to the on-board CIR device through CTC / TDCS, or directly notifies the driver by phone, telling the driver to manually control the train speed.

[0003] LKJ temporary data file is an important foundation and basis for realizing the safe control of train operation. At present, for planned operation disclosure and dispatching orders, the locomotive department compiles LKJ temporary data file (IC card data file) according to the operation disclosure and dispatching orders issued in advance. The driver carries the IC card on the train, loads the LKJ temporary data stored in the IC card into LKJ and confirms it, so as to realize the speed limit control or prompt of the train by LKJ. Due to the reliability of IC card portable devices, the normal use of LKJ will be affected if the IC card is poorly contacted or damaged.

[0004] In addition, for sudden temporary speed limit dispatching orders, the dispatcher issues temporary speed limit dispatching orders through CTC / TDCS, the driver signs or receives them through CIR, and the driver manually controls the train speed according to the dispatching order requirements. That is, for temporary speed limit dispatching orders, LKJ machine control is not currently implemented.

[0005] At present, the temporary speed limit dispatching order has the following problems, such as the heavy workload of the driver and the high risk of manual verification; the IC card medium is unreliable, which causes the IC card to have an increased failure rate after being used for a long time; the disclosure transmission is unreliable. Since the LKJ temporary data file is stored in the IC card according to "strips", the entire LKJ temporary data file has no check code, which may cause the loss of some fields in the LKJ temporary data file during the transmission process and the entire file cannot be detected, and there is a safety risk of LKJ losing control and causing the train to exceed the speed limit; and currently there are planned operation disclosure dispatching orders issued twice a day. If a new operation disclosure dispatching order is issued after the train driver is on duty, the on-board LKJ equipment cannot be updated in time, and there is no new dispatching order, and the machine control cannot be realized. The temporary speed limit dispatching order has the risk of speeding. If the driver does not control the speed according to the received content after receiving the temporary speed limit dispatching order, the train will be at risk of speeding, which may lead to a train accident with vehicle destruction and death. Summary of the invention

[0006] In view of the above-mentioned problem that the current LKJ temporary speed limit dispatching command relies on the current equipment and cannot realize machine control, the present invention provides a LKJ temporary data ground-to-ground wireless transmission system.

[0007] The technical solution is to include temporary data including "line number / station number information", "line information", "starting mileage information" and "ending mileage information" for train operation control, and the temporary data is compiled according to the specified standard to form an LKJ temporary data file that can be recognized and read by the on-board LKJ;

[0008] The LKJ temporary data file is decomposed according to the area and stored in the LKJ disclosure management server located on the ground; when the train runs to the designated area, the on-board equipment sends the train location information to the ground, and the LKJ disclosure management server searches for the corresponding LKJ temporary data file according to the train location information, and transmits the corresponding LKJ temporary data file to the on-board LKJ through the train-to-ground wireless transmission channel covering all the running sections of the train;

[0009] The on-board LKJ displays and / or controls the train according to the content of the LKJ temporary data file.

[0010] In the above or some embodiments, it also includes a compilation module and a review module for processing the temporary data of the area. The review module performs a simulation test on the LKJ temporary data. After the test is correct, the compilation module sends the compiled LKJ temporary data file to the LKJ disclosure management server.

[0011] In the above or some embodiments, when the train leaves the station and arrives at the designated location, the LKJ on-board equipment sends the train location information to the ground LKJ disclosure management server. The train location information includes the TMIS station number in front of the train, the TMIS station number behind the train, the maintenance line number, the train number, and the locomotive number; the LKJ disclosure management server initiates a wireless replacement application for the LKJ temporary data file to the LKJ on-board equipment based on the received train location information, and applies for the LKJ temporary data file of the set station and section in front of the train.

[0012] In the above or some embodiments, the temporary data includes temporary limit scheduling commands and operation disclosure scheduling commands; the temporary speed limit scheduling commands are compiled and reviewed by the CTC central equipment to the compilation module and the review module to form an LKJ temporary data file and send it to the LKJ disclosure management server; for the operation disclosure scheduling commands, the LKJ temporary data files issued by one or more cross-segment card writing servers within the bureau are sent to the LKJ disclosure management server.

[0013] In the above or some embodiments, the vehicle-to-ground wireless transmission channel includes a CIR vehicle-to-ground wireless transmission channel, an LKJ wireless equipment-changing wireless transmission channel, and a digital radio wireless transmission channel.

[0014] In the above or some embodiments, the CIR vehicle-to-ground wireless transmission channel includes a CIR vehicle-mounted device and a ground GRIS interface server. The CIR vehicle-mounted device forms the CIR vehicle-to-ground wireless transmission channel with the ground GRIS interface server through a GSM-R communication network; the LKJ wireless transceiver wireless transmission channel includes an LKJ data wireless transceiver vehicle-mounted device and a ground wireless transceiver server. The LKJ data wireless transceiver vehicle-mounted device forms the LKJ wireless transceiver wireless transmission channel with the ground wireless transceiver server through a 4G / 5G communication network; the digital radio wireless transmission channel includes a dynamic information processing unit and a ground DRTD interface server. The dynamic information processing unit forms the digital radio wireless transmission channel with the ground DRTD interface server through a 400MHz channel.

[0015] Compared with the traditional method of getting on board and revealing temporary data, the ground system of this solution can monitor the dispatch command reception status of the on-board LKJ equipment in real time, compare it with the ground system, and display the comparison results. It avoids the safety risks caused by the subjectivity of manual verification; compared with the current method of manually controlling temporary speed limit dispatch commands, this invention realizes the automatic compilation and simulation inspection of LKJ temporary speed limit, and realizes machine control; the operation and disclosure of dispatch commands are no longer affected by the attendance time and attendance location of the crew, and can be on board at any time after being issued; after the temporary speed limit dispatch command is issued, it can be wirelessly on board and controlled; after the promotion of this invention, the purchase of IC cards can be cancelled, reducing the material investment of the railway, while reducing the workload of the driver on the dispatch command verification, reducing labor intensity and reducing working time. Moreover, the redundant configuration of the vehicle-ground network of this solution avoids transmission failures caused by a separate network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a block diagram of the wireless transmission architecture in the present invention.

[0017] Figure 2 This is a principle block diagram of the present invention.

[0018] Figure 3 It is a comparison table of regional engineering routes in the present invention.

[0019] Figure 4 This is the regional decomposition principle of LKJ temporary data files of ordinary stations in the present invention.

[0020] Figure 5 This is the regional decomposition principle of LKJ temporary data files for complex stations in the present invention.

[0021] Figure 6 To run the flow chart of the dispatch command boarding.

[0022] Figure 7 Flow chart for boarding a vehicle for a temporary speed limit command. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0025] Temporary data files are compiled from temporary data. Temporary data sources include temporary speed limit dispatching orders and planned operation disclosure dispatching orders. Temporary data include "line number / station number information", "line information", "start mileage information" and "end mileage information".

[0026] For temporary speed limit dispatch commands, the CTC central equipment provides formatted text information to the LKJ disclosure compilation and review equipment. After the LKJ disclosure review equipment completes compilation and review, it sends the verification results to CTC on the one hand, and sends the generated LKJ temporary data file to the LKJ disclosure management server on the other hand.

[0027] For a planned operation disclosure scheduling command, when one or more cross-segment card writing servers within the bureau management publish LKJ temporary data files, the generated LKJ temporary data files are sent to the LKJ disclosure management server at the same time.

[0028] After receiving the "LKJ temporary data file", the LKJ disclosure management server decomposes and stores it by region according to the "regional engineering line comparison table". When the train runs to the designated area, the on-board equipment sends the train location information to the ground. The LKJ disclosure management server searches for the corresponding LKJ temporary data file based on the train location information, and transmits the corresponding LKJ temporary data file to the on-board LKJ through the redundant train-ground wireless transmission channel. After the on-board LKJ receives the LKJ temporary data generated by the temporary speed limit dispatching command, it sends a receipt message to CTC / TDCS through the train-ground wireless transmission channel. LKJ displays or controls according to the content of the LKJ temporary data file.

[0029] When loading temporary data files on board, the specific process is as follows: When the train runs to the station exit signal, the LKJ on-board equipment sends the train location information to the ground LKJ disclosure management server. The train location information includes the TMIS station number in front of the train, the TMIS station number behind the train, the engineering line number, the train number, the locomotive number, etc. Based on the received train location information, the LKJ disclosure management server initiates a wireless transfer application for LKJ temporary data files to the LKJ on-board equipment, and applies for LKJ temporary data files for the three stations and sections ahead of the train.

[0030] When the LKJ receives the LKJ temporary data file, it sends the train location information to the ground LKJ display management server 5 times every time it passes a signal, so that the LKJ display management server can identify the train location. When the LKJ display management server receives the LKJ temporary data file sent by the LKJ display compilation and review equipment, the LKJ display management server actively sends the LKJ temporary data file to the locomotive in the display area.

[0031] The vehicle-mounted equipment of the present invention includes an LKJ host, a DMI display unit, an LKJ data wireless transceiver and a CIR vehicle-mounted equipment, including a dynamic information processing unit of a 400MHz digital radio vehicle-ground communication channel, the dynamic information processing unit is used to provide an RS422 interface with the CIR, and is connected to the LKJ2000 host via a CAN bus, and uses the CIR connection and its own radio to convert the collected information into CAN information and send it to the LKJ2000 host. The ground equipment includes the existing LKJ disclosure editing and review equipment, a wireless transceiver server, a GRIS server, a 400MHz radio center equipment, a CTC / TDCS center equipment, and an LKJ disclosure management server; redundant vehicle-ground wireless transmission channels are formed through the above equipment, including a CIR vehicle-ground wireless transmission channel, an LKJ wireless transceiver wireless transmission channel, and a digital radio wireless transmission channel.

[0032] In the above or some embodiments, the CIR vehicle-to-ground wireless transmission channel includes a CIR vehicle-mounted device and a ground GRIS interface server. The CIR vehicle-mounted device forms a CIR vehicle-to-ground wireless transmission channel with the ground GRIS interface server through the GSM-R communication network; the LKJ wireless transshipment wireless transmission channel includes an LKJ data wireless transshipment vehicle-mounted device and a ground wireless transshipment server. The LKJ data wireless transshipment vehicle-mounted device forms an LKJ wireless transshipment wireless transmission channel with the ground wireless transshipment server through the 4G / 5G communication network; the digital radio wireless transmission channel includes a dynamic information processing unit and a ground DRTD interface server. The dynamic information processing unit forms a digital radio wireless transmission channel with the ground DRTD interface server through a 400MHz channel.

[0033] The LKJ disclosure management server generates a "regional engineering line comparison table" based on the "station + section" method by analyzing the LKJ basic data file. Figure 3 is one embodiment thereof.

[0034] Each LKJ operation disclosure contains location information, including the maintenance line number, maintenance line type, maintenance line mileage, station TMIS number and other information, which contains temporary speed limit information for a certain section or station. Before executing the LKJ temporary data file decomposition, the LKJ disclosure management server needs to set up the regional maintenance line comparison table. For ordinary stations, this area is three stations and three sections; for stations with multiple entrances and exits, this area is a collection of one entry and multiple exits. The regional maintenance line comparison table contains the maintenance lines and station ranges contained in the area, including the maintenance line number and the starting and ending mileage corresponding to the number.

[0035] When the LKJ disclosure management server obtains the LKJ temporary data file, it matches the location information of each LKJ operation disclosure with the location information of each area. If they can be matched, the LKJ operation disclosure will be placed in this area until all LKJ temporary data files are matched. For example, if the mileage range of the nth LKJ operation disclosure is: Beijing-Guangzhou Line, Downward, K805+200 to K806+200, and the range of the mth area is: Beijing-Guangzhou Line, Upward and Downward, K600+000 to K900+000, then the nth LKJ operation disclosure can be decomposed into the downstream direction of the mth area, and at the same time, a protective speed limit of 20km / h is added at the K900+000 position, and the others are similar. When a certain area has LKJ temporary data, in order to ensure the control safety of the vehicle, it is necessary to add a protective speed limit at the end of the coverage range of the area.

[0036] Compared with the traditional method of getting on board and revealing temporary data, the ground system of this solution can monitor the dispatch command reception status of the on-board LKJ equipment in real time, compare it with the ground system, and display the comparison results. It avoids the safety risks caused by the subjectivity of manual verification; compared with the current method of manually controlling temporary speed limit dispatch commands, this invention realizes the automatic compilation and simulation inspection of LKJ temporary speed limit, and realizes machine control; the operation and disclosure of dispatch commands are no longer affected by the attendance time and attendance location of the crew, and can be on board at any time after being issued; after the temporary speed limit dispatch command is issued, it can be wirelessly on board and controlled; after the promotion of this invention, the purchase of IC cards can be cancelled, reducing the material investment of the railway, while reducing the workload of the driver on the dispatch command verification, reducing labor intensity and reducing working time. Moreover, the redundant configuration of the vehicle-ground network of this solution avoids transmission failures caused by a separate network.

Claims

1. A LKJ temporary data ground-to-train wireless transmission system, including temporary data including "line number / station number information", "line information", "starting mileage information" and "ending mileage information" for train operation control, characterized in that: The temporary data is compiled according to the specified standard to form an LKJ temporary data file that can be recognized and read by the vehicle-mounted LKJ; The LKJ temporary data file is decomposed according to the area and stored in the LKJ disclosure management server located on the ground; when the train runs to the designated area, the on-board equipment sends the train location information to the ground, and the LKJ disclosure management server searches for the corresponding LKJ temporary data file according to the train location information, and transmits the corresponding LKJ temporary data file to the on-board LKJ through the train-to-ground wireless transmission channel covering all the running sections of the train; The on-board LKJ displays and / or controls the train according to the content of the LKJ temporary data file.

2. According to claim 1, a LKJ temporary data ground-to-ground wireless transmission system is characterized in that: It also includes a compilation module and a review module for processing the temporary data of the area. The review module performs a simulation test on the LKJ temporary data. After the test is correct, the compilation module sends the compiled LKJ temporary data file to the LKJ disclosure management server.

3. According to claim 1, a LKJ temporary data ground-to-ground wireless transmission system is characterized in that: When the train leaves the station and arrives at the designated location, the LKJ on-board equipment sends the train location information to the ground LKJ disclosure management server. The train location information includes the TMIS station number ahead of the train, the TMIS station number behind the train, the engineering line number, the train number, and the locomotive number. The LKJ disclosure management server initiates a wireless replacement application for the LKJ temporary data file to the LKJ on-board equipment based on the received train location information, and applies for the LKJ temporary data file of the set station and section ahead of the train.

4. According to claim 1, a LKJ temporary data ground-to-ground wireless transmission system is characterized in that: The temporary data includes temporary speed limit scheduling commands and operation disclosure scheduling commands; the temporary speed limit scheduling commands are compiled and reviewed by the CTC central equipment to the compilation module and the review module to form an LKJ temporary data file and send it to the LKJ disclosure management server; for the operation disclosure scheduling commands, the LKJ temporary data files issued by one or more cross-segment card writing servers within the bureau are sent to the LKJ disclosure management server.

5. The LKJ temporary data ground-to-ground wireless transmission system according to claim 1 is characterized in that: The vehicle-to-ground wireless transmission channel includes a CIR vehicle-to-ground wireless transmission channel, an LKJ wireless equipment-changing wireless transmission channel, and a digital radio wireless transmission channel.

6. The LKJ temporary data ground-to-ground wireless transmission system according to claim 1, characterized in that: The CIR vehicle-to-ground wireless transmission channel includes a CIR vehicle-mounted device and a ground GRIS interface server. The CIR vehicle-mounted device forms the CIR vehicle-to-ground wireless transmission channel with the ground GRIS interface server through a GSM-R communication network; the LKJ wireless transshipment wireless transmission channel includes an LKJ data wireless transshipment vehicle-mounted device and a ground wireless transshipment server. The LKJ data wireless transshipment vehicle-mounted device forms the LKJ wireless transshipment wireless transmission channel with the ground wireless transshipment server through a 4G / 5G communication network; the digital radio wireless transmission channel includes a dynamic information processing unit and a ground DRTD interface server. The dynamic information processing unit forms the digital radio wireless transmission channel with the ground DRTD interface server through a 400MHz channel.

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