Train control system based on CTCS (China Train Control System) and driving safety inspection method

Abstract

A train control system based on CTCS is used for controlling operation of trains and comprises train-mounted systems which are correspondingly arranged on the trains and used for obtaining train operation information and controlling the trains to operate; the vehicle-mounted system comprises a plurality of train operation information capturing devices and a plurality of train operation control devices; the ground system is fixedly arranged on a train running path; the ground system, the plurality of train operation information capturing devices and the plurality of train operation control devices can exchange data with one another; the train operation control equipment receives a train operation instruction from the ground system and controls a train to operate according to the train operation instruction; the method has the advantage of improving the overall safety of the CTCS.

Description

Technical Field

[0001] The present invention relates to the field of train control systems, and in particular to a train control system based on CTCS and a driving safety inspection method. Background Art

[0002] In CTCS, the train movement authorization instruction sent by RBC serves as the driving permit for train movement and is the driving certificate for the on-board ATP equipment to control the safe operation of the train. Whether the instruction information is complete and accurate is related to the safe operation of the train and the safety of passengers' lives and property.

[0003] Therefore, in order to ensure the integrity of the instructions, it is inevitable to generate a lot of operating equipment, such as setting up a number of on-board systems, information transmission equipment, etc. However, in the future-oriented new generation of train control systems, reducing the number of operating equipment, reducing the complexity of the train control system, enhancing the functions of operating equipment, and realizing autonomous intelligent control of trains have become the direction of development and exploration. Therefore, how to achieve safe verification of driving permits with less reliance on information provided by operating equipment and relying on less and more core information has become the main demand and problem to be solved by the new generation of train control systems.

[0004] Furthermore, after receiving the driving permit, the existing verification methods are to verify whether the length information of the driving permit is correct and safe; for example, the on-board system uses the turnout information sent by the ground system to realize the logic verification between the train and the RBC. However, in the verification process, in addition to the risk of incorrect length of the driving permit, there is also the risk of space-time conflict between different trains and the risk of incorrect data information of the driving permit; and there is no method for detecting driving conflicts between different trains in the same spatial area. Summary of the invention

[0005] The purpose of the present invention is to provide a train control system and a driving safety inspection method based on CTCS, which have the advantage of improving the overall safety of CTCS.

[0006] To achieve the above-mentioned purpose, the present invention provides a train control system based on CTCS, which is used to control the operation of a train, and the train control system includes: an on-board system, each of which is correspondingly arranged on a train, and is used to obtain train operation information and control the train operation; the on-board system includes a plurality of train operation information capturing devices and a plurality of train operation control devices, and the train operation information capturing devices are used to obtain train operation information; a ground system, the ground system is fixedly arranged on the train operation path, and is used to obtain train operation path information; the ground system, the plurality of train operation information capturing devices and the plurality of train operation control devices can exchange data with each other; the ground system obtains the train operation path information, and according to the train operation path information and the train operation information received from the train operation information capturing device, issues a train operation instruction to the train operation control device; the train operation control device receives the train operation instruction from the ground system, and controls the train operation according to the train operation instruction.

[0007] Preferably, each of the train operation information capturing devices and each of the train operation control devices are connected to the ground system signal.

[0008] Preferably, one or more train operation information capture devices / train operation control devices on the same train are selected as signal nodes, and the train operation information capture devices / train operation control devices serving as signal nodes are connected to each other in pairs. If there is only one train operation information capture device / train operation control device on the same train, it exists independently; the remaining train operation information capture devices / train operation control devices that are not signal nodes are signal-connected to at least one train operation information capture device / train operation control device serving as a signal node.

[0009] Preferably, the ground system, all train operation information capturing devices belonging to different trains, and all train operation control devices belonging to different trains are interconnected.

[0010] Preferably, the ground system includes: a number of trackside devices for acquiring train operation path information; a number of central devices for issuing train operation instructions to the train operation control device based on the received train operation information and train operation path information; the trackside devices, central devices, train operation information capture devices and train operation control devices can exchange data with each other.

[0011] Preferably, the train operation control device is a device with ATP function or ATO function.

[0012] Preferably, the plurality of trackside devices are TIS devices or CBI devices.

[0013] Preferably, the plurality of central devices are TSRS devices, RBC devices, or CTC devices.

[0014] Preferably, the train control system uses GSM-R to exchange data between the trackside equipment, central equipment, train operation information capture equipment and train operation control equipment.

[0015] A driving safety inspection method based on CTCS, the method adopts the aforementioned train control system based on CTCS, step S1, a plurality of train operation information capture devices belonging to different trains respectively obtain their corresponding train operation information and transmit it to the ground system, all train operation information capture devices belonging to different trains and all train operation control devices belonging to different trains exchange data with each other; step S2, the ground system receives the train operation information and obtains the train operation path information; step S3, a target train is pre-selected, and the plurality of train operation information capture devices belonging to the target train detect whether there are other trains associated with the train according to all the received train operation information, and if so, The remaining trains associated with this train are all marked as associated trains, and the process goes to step S4; if not, the process goes to step S5; in step S4, the ground system generates train operation instructions for the target train and the associated trains based on the train operation information and train operation path information of the target train and all the associated trains, and transmits them to the train operation control equipment to which the corresponding trains belong, and the process goes to step S6; in step S5, the ground system generates train operation instructions for the target train based on the train operation information and train operation path information of the target train, and transmits them to the train operation control equipment to which the target train belongs, and the process goes to step S6; in step S6, several train operation control equipments receive the corresponding train operation instructions, and control the operation of the corresponding trains according to the train operation instructions.

[0016] Preferably, step S1 includes: initializing all train operation information capture devices and train operation control devices, establishing a connection with the ground system, verifying whether the data can be transmitted normally, verifying whether the operating system used is consistent, if not, updating and re-executing step S1; if consistent, all train operation information capture devices obtain the train operation information and transmit it to the central device, and all train operation information capture devices and all train operation control devices also exchange data with each other.

[0017] Preferably, step S2 includes: a number of central devices receiving train operation information, a number of trackside devices acquiring train operation path information and transmitting it to all the central devices for calculation.

[0018] Preferably, step S4 or step S5 comprises: the plurality of central devices calculate the train operation instruction by using the connection relationship between the turnouts and the lines, the line section status and the turnout status in the electronic map, as well as the train's own position and the position of the train ahead.

[0019] Preferably, step S4 or step S5 includes: several train operation information capture devices belonging to the same train send all train operation information to a central device, and at the same time, fit the aforementioned train operation information into the first movement authorization information of the train to which they belong and send it to the central device; several central devices calculate a train operation instruction including the second movement authorization information; the central device compares the first movement authorization information and the second movement authorization information, and if there is a difference, selects the safest movement authorization information as part of the train operation instruction and transmits it to the train operation control device; wherein, if there is only a target train, all the train operation information represents the train operation information of the target train; if there are associated trains, all the train operation information represents the train operation information of the target train and the train operation information of the associated trains.

[0020] Preferably, step S4 or step S5 includes: a number of central devices construct a spatial coordinate system based on the received train operation path information, and according to the train operation information, mark the train operation information of the train to which they belong and the corresponding train, and represent it in the spatial coordinate system; after completion, detect whether there is a future movement overlapping area between the target train and other trains. If so, the central device sends a train operation instruction including a stop to the train operation control device of the target train and the corresponding other trains, and the train will stop in front of the overlapping area; if not, maintain the status quo.

[0021] Preferably, step S4 or step S5 comprises: after a number of train operation information capture devices acquire the train speed, the most restrictive speed control curve of the train to which they belong is obtained through fitting calculation; the number of train operation information capture devices sends the most restrictive speed control curve to the central device; after the central device receives the most restrictive speed control curve, it verifies it with the relevant speed data in the train operation path information; if the most restrictive speed control curve calculated by the train operation information capture device is inconsistent with the relevant speed data in the train operation path information, the most restrictive speed control curve is adjusted; after the adjustment is completed, if the train is still in operation at this time, and the speed exceeds the maximum speed limit of the adjusted most restrictive speed control curve, the central device sends a train operation instruction containing the speed limit to the corresponding train operation control device, and the central device also starts the speed limit refresh processing with the train operation control device to check whether there is an inconsistency between the train operation instruction containing the speed limit; if so, it is necessary to reissue the relevant unexecuted train operation instruction containing the speed limit; after the adjustment is completed, if the train is not running at this time, or is in operation but the speed does not exceed the maximum speed limit of the adjusted most restrictive speed control curve, the status quo is maintained, and the central device does not need to send the relevant train operation instruction to the train operation control device.

[0022] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the aforementioned driving safety inspection method based on CTCS.

[0023] An electronic device includes a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the aforementioned driving safety inspection method based on CTCS is implemented.

[0024] In summary, compared with the prior art, the CTCS-based train control system and driving safety inspection method provided by the present invention have the following beneficial effects:

[0025] First, through communication and interaction of relevant train data, redundant verification can be achieved through calculations on the ground system.

[0026] Second, the line space-time coordinate system of the station or hub area is constructed based on the electronic map data, and the train position and movement authorization data are projected to realize the conflict check of multiple train driving permits.

[0027] Third, by sending the maximum speed limit control curve data calculated by the on-board system to the central device, a closed-loop check of the temporary speed limit information and the train control speed information is achieved.

[0028] Fourth, the various data mentioned in the present invention construct a complete multi-dimensional mobile authorization redundancy verification system, achieve a higher level of security verification, and improve the overall security of the CTCS train control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the conflict in driving permits for front and rear trains on the same track.

[0030] Figure 2 Schematic diagram of the conflicting situation of train driving permits on different tracks.

[0031] Figure 3 This is a schematic diagram of the train using the maximum speed limit curve.

[0032] Figure 4 A schematic diagram of a driving safety inspection method based on CTCS proposed by the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the attached embodiment of the present invention Figure 1 ~Attached Figure 4 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0034] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0035] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] The present invention provides a train control system and a driving safety inspection method based on CTCS (Chinese Train Control System); the train control system refers to a system including corresponding train control technologies and operating equipment, which realizes management operations such as controlling the travel and movement of trains through the combination of many train control technologies and the operation of several operating equipment. For example, the operating equipment with data collection function collects a lot of data such as train operation information and train operation path information, and the operating equipment with data calculation function obtains the train operation instruction, and sends the corresponding train operation instruction to the operating equipment with braking and other functions, so as to realize the operation of the train.

[0037] Therefore, the train control system proposed in the present invention includes:

[0038] A plurality of on-board systems, each of which is correspondingly arranged on a train and is used to obtain train operation information and control train operation; the on-board system comprises a plurality of train operation information capturing devices and a plurality of train operation control devices, the train operation information capturing devices are used to obtain train operation information, and the train operation control devices are used to control train operation;

[0039] The train operation information refers to the information related to the operation characteristics of the train itself, such as speed, identification code, existing driving permit, etc.

[0040] A ground system, wherein the ground system is fixedly arranged on the train running path and is signal-connected to each train running information capturing device and each train running control device respectively; the ground system obtains train running path information, and issues a train running instruction to the train running control device according to the train running path information and the train running information received from the train running information capturing device, and the train running control device controls the train running according to the train running instruction;

[0041] Among them, the train running path information refers to the information of the track on which the train runs, such as station layout, hub settings, switch layout, etc.; the train running instructions refer to commands to control the operation of the train, including train stopping, braking, starting, etc.

[0042] As mentioned above, each of the train operation information capture devices and each train operation control device is connected to the ground system by signals, thereby realizing the transmission of train operation information, train operation path information and train operation instructions, facilitating operations such as train operation adjustment; however, the transmission order here is onboard system-ground system-onboard system.

[0043] Here, the signal connection is not limited to the aforementioned method. On the basis of the aforementioned signal connection between the ground system and each train operation information capture device and each train operation control device, the following may be added:

[0044] (1) For the same train, one or more train operation information capture devices / train operation control devices (not limited to train operation information capture devices or train operation control devices) are selected as signal nodes, and the train operation information capture devices / train operation control devices serving as signal nodes are connected in pairs; if there is only one train operation information capture device / train operation control device on the same train, the step of connecting them to each other can be skipped; the remaining train operation information capture devices / train operation control devices that are not signal nodes are signal-connected to at least one train operation information capture device / train operation control device serving as a signal node.

[0045] By adopting this method, data interaction between several train operation information capture devices and several train operation control devices belonging to the same train can be realized without going through the ground system. The transmission order here is train operation information capture device / train operation control device of non-signal node-train operation information capture device / train operation control device of signal node-train operation information capture device / train operation control device of non-signal node; at this time, for data interaction between different trains, the transmission order still needs to go through the ground system.

[0046] Furthermore, based on (1), in order to solve the problem that the data interaction between different trains still needs to pass through the ground system, (2) is proposed.

[0047] (2) All train operation information capture devices belonging to different trains and all train operation control devices belonging to different trains are interconnected. In this way, data interaction can be directly realized between different trains without the involvement of the ground system. The transmission order here is train operation information capture device / train operation control device-train operation control device / train operation information capture device.

[0048] Regardless of the connection method, its core purpose is to ensure that the ground system, train operation information capture equipment and train operation control equipment can achieve signal connection and data transmission with each other.

[0049] There is a problem about how to determine the train operation information capture device and train operation control device belonging to the same train; because the devices belonging to the same train have the same identification code (belonging to the train operation information), representing the train to which it belongs, so when transmitting information, calculating train operation instructions, and transmitting train operation instructions, there is no need to worry about erroneous transmission or inability to identify the operation information capture device / train operation control device belonging to each train.

[0050] In addition, it should be stated here that the train operation instructions mentioned above do not refer to a single instruction, or an instruction for a train operation control device, but rather an expression of the meaning of an instruction set, which may include actions that a train operation control device should complete within a period of time; it may also include actions performed instantly by multiple train operation control devices on the same train; it may even be instructions for multiple train operation control devices on different trains.

[0051] In a preferred embodiment, the ground system can be further configured to include several trackside devices specifically responsible for obtaining train operation path information, and several central devices specifically responsible for train operation instruction calculations; there is no doubt that the trackside devices, central devices, train operation information capture devices, and train operation control devices should be signal-connected to each other to facilitate the transmission of various types of data.

[0052] Here, the signal connection method can be inferred as described above and will not be repeated here. In this preferred embodiment, the ground system is carefully configured to increase its operational efficiency and achieve rapid transmission of train operation instructions.

[0053] The following will introduce the specific implementation and construction of the aforementioned train control system:

[0054] As mentioned above, the on-board system includes a train operation information capture device and a train operation control device; wherein, the train operation information capture device is, for example, a device with a train operation speed acquisition function, a device with a train operation time acquisition function, a device for determining whether multiple train operation interaction information transmissions are smooth, etc., and it is only necessary to realize the capture of train operation information; the train operation control device is, for example, a device equipped with an ATP (Automatic Train Protection) function or an ATO function (Automatic Train Operation), etc., which can control the operation of the train by receiving train operation instructions.

[0055] As mentioned above, the ground system includes a number of trackside devices and a number of central devices; some of the trackside devices include, for example, TIS devices (Train Control & Interlocking Integration System), CBI devices (Computer Based Interlocking) and other devices with the function of capturing train operation path information; some of the central devices include, for example, TSRS devices (Temporary Speed ​​Restriction Server), RBC devices (Radio Block Center), CTC devices (Centralized traffic control) and other devices with the function of calculating train operation instructions.

[0056] In order to further strengthen the signal connection between several train operation information capture devices, several train operation control devices, several trackside devices and several central devices, and realize data interaction; this embodiment adopts GSM-R (GSM for Railway, railway mobile communication system standard) for data interaction.

[0057] In addition, it should be emphasized here that the aforementioned "device for capturing train operation information", "device for controlling train operation", "device with train operation path information capturing function" and "device with train operation instruction calculation function" are only examples selected to implement the technical solution proposed by the present invention; the devices selected for the functions of the aforementioned examples are not limited to one device corresponding to a single function.

[0058] For example, some devices equipped with the ATP function have certain speed acquisition modules, so the train operation information capture device and the train operation control device both use devices equipped with the ATP function. The system composed of several devices equipped with the ATP function can independently undertake all processes of acquiring train operation speed information (capturing train operation information), receiving train operation instructions, and controlling the train operation according to the train operation instructions.

[0059] For another example, both the trackside equipment and the central equipment use CBI equipment. The ground system thus formed can independently undertake all the processes of obtaining the interlocking status of the train running path (that is, obtaining the train running path information), receiving the train running information, and issuing train running instructions to the train running control equipment based on the interlocking status of the train running path and the train running information.

[0060] The following examples will introduce the specific application of the train control system. In some examples, the onboard system and the ground system are not set in detail:

[0061] (1) The ground system generates train operation instructions based on the block partition;

[0062] The block section is a section of train running road where only one train can run at the same time. This section of train running road is the block section. The block section is a way to prevent train collisions or rear-end collisions, and is a major method to ensure safety. The ground system obtains the number of available block sections (train running path information) and the length of the block section in front of the train, and performs calculations based on the train running speed (train running information) to obtain the train running instructions for which block section or blocks the train uses.

[0063] (2) The ground system generates train operation instructions based on the train's expected terminal position (train operation information) and the maximum position allowed by the train's current operation path (train operation path information);

[0064] The ground system conducts a combined analysis of the train's expected terminal position and the maximum position allowed by the train's current running path; if the train's expected terminal position is greater than the maximum position allowed by the train's current running path, it means that the train is at risk of exceeding the established driving area, and the train operation instruction requires the on-board system to shorten the train's terminal position to the maximum position allowed by the train's running path, that is, to brake in advance to ensure the safety of the train operation.

[0065] (3) The ground system receives and generates train operation instructions based on the existing driving permits (train operation information) between train A and train B;

[0066] Based on the signal connection between Train A and Train B, their respective train operation information capture devices send the existing driving permits to the ground system; after receiving the driving permits sent by Train A and Train B, the ground system performs a cross-redundancy check. If there is a driving permit conflict or driving permit anomaly between Train A and Train B, the ground system outputs the train operation instructions including safety side processing to the train operation control device and outputs an alarm to the driver.

[0067] (4) For existing driving permits between more than three trains, the ground system receives and generates train operation instructions respectively;

[0068] The train operation information capture device of each train sends the existing driving permit (train operation information) to the ground system; the existing driving permit should be more detailed than the existing driving permit in (3), so that the ground system can complete the cross-redundancy check between the existing driving permits of different trains, and can also realize the closed-loop check (i.e., multi-dimensional speed check) of the train's maximum speed control curve (i.e., maximum speed limit curve, see below for details) and temporary speed limit commands, so as to output the corresponding train operation instructions; in the CTCS train control system, different independent trains can also verify their key safety data, exploring a new direction for redundant verification.

[0069] (5) The ground system generates corresponding train operation instructions based on the spatial coordinates of several trains running within a certain spatial range and the distribution of turnouts on the running path and other parameters;

[0070] The onboard systems of several trains send the existing driving permit and other data (train operation information) to the ground system, as well as the turnout distribution and other data (train operation path information) of the operation path obtained by the ground system; after receiving the aforementioned data within a certain spatial range, the ground system constructs the current real-time line data map and real-time spatial coordinate system based on the aforementioned data, and projects the corresponding information of the train onto the coordinate system, realizing operations such as prediction of the maximum position allowed for the train operation path and train operation conflict check, and then Fang Boyi generates the corresponding train operation instructions to control the operation of the train;

[0071] The train operation instructions generated at this time may have the following situations, which are introduced in detail:

[0072] First, when the train operation instructions for all trains are generated, if there is temporal and spatial overlap in the driving ranges of the driving permits of different trains in all the generated train operation instructions, the ground system will resend the train operation instructions containing safety side processing to the corresponding trains to prevent train collisions.

[0073] The second type is that after the train operation instructions for all trains are generated, if in all the generated train operation instructions, there is no temporal and spatial overlap in the driving ranges of the driving permits of different trains, the on-board system sends the speed control data (train operation information) of the trains to the ground system; the ground system verifies the integrity and correctness of the speed control data of the on-board system based on historical data; if there is a temporary speed limit or other speed limit information is missing, the ground system sends a train operation instruction to the on-board system for emergency stop or shortening of driving distance to ensure the safety of the train.

[0074] A train control system is described in detail above. Further, based on the above train control system, the present invention proposes a driving safety inspection method based on CTCS, such as Figure 4 As shown, the method includes:

[0075] Step S1, a plurality of train operation information capturing devices respectively belonging to different trains obtain the corresponding train operation information and transmit it to the ground system, and all the train operation information capturing devices belonging to different trains and all the train operation control devices belonging to different trains exchange data with each other;

[0076] Step S2, the ground system receives train operation information and obtains train operation path information;

[0077] Step S3, a target train is pre-selected, and several train operation information capturing devices belonging to the target train detect whether there are other trains associated with the train according to all the received train operation information. If so, all the other trains associated with the train are marked as associated trains, and the process goes to step S4; if not, the process goes to step S5;

[0078] Step S4, the ground system generates a train operation instruction of the target train and all associated trains according to the train operation information and train operation path information of the target train and all associated trains, and transmits the instruction to the train operation control device to which the corresponding train belongs, and then proceeds to step S6;

[0079] Step S5, the ground system generates a train operation instruction of the target train according to the train operation information and train operation path information of the target train and transmits it to the train operation control device to which the target train belongs, and then proceeds to step S6;

[0080] Step S6: a plurality of train operation control devices receive corresponding train operation instructions and control the operation of corresponding trains according to the train operation instructions.

[0081] in,

[0082] Regarding step S3, preselecting a target train means selecting a train to be analyzed, taking the train as the core, and the ground system generates a number of train control instructions around the target train.

[0083] In step S3, the associated trains refer to other trains that may conflict with the target train, for example, trains on the same track, or trains that are about to be on the same track.

[0084] The different calculation modes of step S4 and step S5 are because, in the absence of associated trains, the target train will not conflict with other trains, so it is only necessary to read the train operation information of the target train.

[0085] The following is a detailed description of the method.

[0086] The step S1 comprises:

[0087] Initialize all train operation information capture devices and train operation control devices, establish a connection with the ground system, verify whether the data can be transmitted normally, verify whether the operating system used is consistent, if not, update and re-execute step S1; if consistent, all train operation information capture devices obtain train operation information and transmit it to the central device, and all train operation information capture devices and all train operation control devices also exchange data with each other.

[0088] Among them, the content of the data interaction includes data such as the train identity code, train number, train running speed, current train running position, existing train running plan, and turnout distribution in the train running plan; one of the key points of data interaction is to identify the train operation information capture equipment and train operation control equipment belonging to the same train, which is conducive to the accuracy of subsequent data transmission.

[0089] The step S2 comprises:

[0090] Several central devices receive train operation information, and several trackside devices obtain train operation path information and transmit it to all the central devices for calculation; there is no doubt that because the data are transmitted to each other, one or several central devices will receive all train operation information and all train operation path information to realize the calculation of subsequent train operation instructions.

[0091] The step S3 comprises:

[0092] The several train operation information capture devices belonging to the target train detect whether there are other trains associated with the target train based on the train operation information and mark them; this is all prior art, so it is not described in detail in this case; generally speaking, the train operation information capture device determines and identifies the trains in front and behind the same line based on the stored electronic map data, the train's own position data, and the positions of other trains in the area and other train operation information, and marks them as associated trains.

[0093] The step S4 includes: a number of central devices generate train operation instructions for the target train and related trains based on the operation information of all trains (including the target train and all related trains) and all train operation path information, and transmit them to the train operation control device to which the corresponding train belongs.

[0094] The step S5 includes: a number of central devices generate a train operation instruction of the target train according to the train operation information of the target train and all train operation path information, and transmit the instruction to the train operation control device to which the target train belongs.

[0095] It is not difficult to see that the core of step S4 and step S5 is to calculate the train operation instructions corresponding to a train.

[0096] Specifically, several specific embodiments are introduced:

[0097] (1) A number of central devices can calculate train operation instructions by combining train operation information such as the relationship between turnouts and lines, line section status, and turnout status in the electronic map, as well as train operation information such as the train's own position and the position of the preceding train (if there is no associated train, this data can be omitted).

[0098] (2) Several train operation information capture devices belonging to the same train send all the train operation information to the central device, and at the same time, fit the aforementioned train operation information into the first movement authorization information of the train and send it to the central device (which is also a kind of train operation information, used to determine whether the train should move and how to move, etc.); several central devices (such as several RBC devices) calculate a train operation instruction including the second movement authorization information according to the aforementioned method (1); because the data are transmitted to each other in real time, the central device compares the first movement authorization information and the second movement authorization information. If there is a difference, the central device selects an optimal movement authorization information as part of the train operation instruction and transmits it to the train operation control device; the "optimal" mentioned here can be understood from multiple angles. For example, if the safety distance information in the first movement authorization information and the second movement authorization information is inconsistent, a movement authorization information that can best ensure the safety of train travel is selected.

[0099] (3) A number of central devices construct a spatial coordinate system based on the received train operation path information (such as existing stations, switches, track layout, etc.), and mark the train operation information of the train to which they belong according to the train operation information, and represent it in the spatial coordinate system; after completing the above steps, it is detected whether there is a future movement overlapping area between the target train and other trains. If so, the central device sends a train operation instruction including a stop to the train operation control devices of the target train and the corresponding other trains, and the train will stop in front of the overlapping area; if not, the status quo is maintained.

[0100] (4) After a number of train operation information capture devices obtain the train speed (train operation information), they obtain the maximum speed control curve of the train to which they belong through fitting calculation (within the scope of "train operation information"); in order to verify the accuracy of the corresponding maximum speed control curve generated, the number of train operation information capture devices sends the maximum speed control curve to the central device. After receiving the maximum speed control curve, the central device verifies it with the relevant speed data in the train operation path information (such as the line allowable speed, train type allowable speed, mode allowable speed, temporary speed limit, etc. data calculated and stored locally).

[0101] If there is an inconsistency between the maximum speed control curve calculated by the train operation information capture device and the relevant speed data of the train operation path information, the maximum speed control curve will be adjusted according to the relevant speed data; after the adjustment, if the train is still in operation at this time and the speed exceeds the maximum speed limit of the adjusted maximum speed control curve, the central device sends a train operation instruction containing the speed limit to the corresponding train operation control device, and the central device also starts the speed limit refresh processing with the train operation control device to check whether there is an inconsistency between the train operation instructions containing the speed limit. If so, it is necessary to reissue the relevant unexecuted train operation instructions containing the speed limit; after the adjustment, if the train is not running at this time, or is in operation but the speed does not exceed the maximum speed limit of the adjusted maximum speed control curve, the status quo is maintained, and the central device does not need to send relevant train operation instructions to the train operation control device.

[0102] Three specific embodiments are described below:

[0103] like Figure 1 As shown, train 1 and train 2 run successively in the same direction on the same track. The train operation information capture devices of train 1 and train 2 both send train operation information (i.e., existing driving permits) to the central device. The driving permit of train 1 includes section 1, section 2, section 3, and switch 2. Once the driving permit of train 2 includes any one of section 1 or section 2 or switch 2 or section 3, it means that there are overlapping driving permits for train 1 and train 2. In order to ensure the safety of train travel, braking measures should be taken even if the overlap only exists in one switch 2. Therefore, in this embodiment, because train 1 is behind train 2, the central device should promptly send train 1 a train operation instruction including emergency braking.

[0104] like Figure 2As shown, train 1 and train 2 are on different tracks. At this time, train 1 is about to depart, and train 2 is in operation. The train operation information capture devices of train 1 and train 2 exchange data of their respective train operation information, such as train identification code, train number, train speed, train position, train operation plan, train driving permit information and other data. Undoubtedly, the aforementioned train operation information will also be transmitted to the central equipment. Among them, the driving permit of train 1 includes turnout 1 and turnout 2, and the driving permit of train 2 includes turnout 2. If the driving permits of train 1 and train 2 are followed at this time, train 1 will enter the same track as train 2 through turnout 1 and turnout 2, and there will be a conflict. Braking measures must be taken for train 1 and train 2. At this time, because of the aforementioned "data interaction of the train operation information of each train", the train operation information capture devices of Train 1 and Train 2 will both generate a train operation information with abnormal driving permission; at the same time, the central device, through the received train operation information with abnormal driving permission, treats the conflict between the driving permissions of Train 1 and Train 2 as the optimal matter, and then issues the corresponding train operation instruction, that is, the train operation control device controls Train 1 not to depart (because Train 1 has not departed at this time), and issues an alarm, and Train 2 performs emergency braking and issues an alarm.

[0105] like Figure 3 As shown, train 1 is running on the track, the central equipment uses a combination of TSRS and RBC, the trackside equipment obtains the train running path information and transmits it to the central equipment, and the train running information capture device obtains the train running information and transmits it to the central equipment; as mentioned above, at this time, the train running information includes a fitting and calculated maximum speed control curve of train 1, and TSRS and RBC use the above method to verify the maximum speed control curve of train 1. At this time, RBC and TSRS both found that there was an error in the maximum speed control curve of train 1 (it did not completely cover the 80km / h area), and RBC and TSRS both sent a train running instruction to the train running control device of train 1 that was directed to the safety side.

[0106] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A train control system based on CTCS, used to control the operation of a train, characterized in that: The train control system comprises: The on-board system is correspondingly arranged on a train and is used to obtain train operation information and control train operation; the on-board system includes a plurality of train operation information capturing devices and a plurality of train operation control devices, and the train operation information capturing devices are used to obtain train operation information; A ground system, wherein the ground system is fixedly arranged on a train running path and is used to obtain train running path information; the ground system, a plurality of train running information capturing devices and a plurality of train running control devices can exchange data with each other; the ground system obtains train running path information, and issues train running instructions to the train running control device based on the train running path information and the train running information received from the train running information capturing device; the train running control device receives the train running instructions from the ground system and controls the train running according to the train running instructions.

2. A train control system based on CTCS according to claim 1, characterized in that: Each of the train operation information capturing devices and each of the train operation control devices are connected to the ground system signal.

3. A train control system based on CTCS according to claim 2, characterized in that: One or more train operation information capturing devices / train operation control devices on the same train are selected as signal nodes. The train operation information capturing devices / train operation control devices as signal nodes are connected to each other in pairs. If there is only one train operation information capturing device / train operation control device on the same train, it exists independently. The train operation information capturing devices / train operation control devices of the remaining non-signal nodes are signal-connected to at least one train operation information capturing device / train operation control device that is a signal node.

4. A train control system based on CTCS according to claim 3, characterized in that: The ground system, all train operation information capturing devices belonging to different trains, and all train operation control devices belonging to different trains are interconnected.

5. A train control system based on CTCS according to claim 4, characterized in that: The ground system includes: Several trackside devices for obtaining train running path information; A number of central devices send train operation instructions to the train operation control device according to the received train operation information and train operation path information; The trackside equipment, central equipment, train operation information capturing equipment and train operation control equipment can exchange data with each other.

6. A train control system based on CTCS according to claim 5, characterized in that: The train operation control device is a device with ATP function or ATO function.

7. The CTCS-based train control system according to claim 5, characterized in that: The plurality of trackside devices are TIS devices or CBI devices.

8. The CTCS-based train control system according to claim 5, characterized in that: The several central devices are TSRS devices, RBC devices, or CTC devices.

9. The CTCS-based train control system according to claim 5, characterized in that: The train control system uses GSM-R to exchange data between the trackside equipment, central equipment, train operation information capture equipment and train operation control equipment.

10. A driving safety inspection method based on CTCS, the method adopting a train control system based on CTCS according to any one of claims 1 to 9, characterized in that: Step S1, a plurality of train operation information capturing devices respectively belonging to different trains obtain the corresponding train operation information and transmit it to the ground system, and all the train operation information capturing devices belonging to different trains and all the train operation control devices belonging to different trains exchange data with each other; Step S2, the ground system receives train operation information and obtains train operation path information; Step S3, a target train is pre-selected, and several train operation information capturing devices belonging to the target train detect whether there are other trains associated with the train according to all the received train operation information. If so, all the other trains associated with the train are marked as associated trains, and the process goes to step S4; if not, the process goes to step S5; Step S4, the ground system generates a train operation instruction of the target train and all associated trains according to the train operation information and train operation path information of the target train and all associated trains, and transmits the instruction to the train operation control device to which the corresponding train belongs, and then proceeds to step S6; Step S5, the ground system generates a train operation instruction of the target train according to the train operation information and train operation path information of the target train and transmits it to the train operation control device to which the target train belongs, and then proceeds to step S6; Step S6: a plurality of train operation control devices receive corresponding train operation instructions and control the operation of corresponding trains according to the train operation instructions.

11. A driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S1 comprises: Initialize all train operation information capture devices and train operation control devices, establish a connection with the ground system, verify whether the data can be transmitted normally, verify whether the operating system used is consistent, if not, update and re-execute step S1; if consistent, all train operation information capture devices obtain train operation information and transmit it to the central device, and all train operation information capture devices and all train operation control devices also exchange data with each other.

12. The driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S2 comprises: A number of central devices receive train operation information, and a number of trackside devices obtain train operation path information and transmit it to all the central devices for calculation.

13. The driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S4 or step S5 includes: the central devices calculate the train operation instructions by using the connection relationship between the turnouts and the lines, the line section status and the turnout status in the electronic map, as well as the train's own position and the position of the train ahead.

14. The driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S4 or step S5 comprises: Several train operation information capturing devices belonging to the same train send all train operation information to the central device, and at the same time, fit the aforementioned train operation information into the first movement authorization information of the train and send it to the central device; The central devices calculate a train operation instruction including the second movement authorization information; the central device compares the first movement authorization information and the second movement authorization information, and if there is a difference, selects the most secure movement authorization information as part of the train operation instruction and transmits it to the train operation control device; Among them, if there is only a target train, all train operation information represents the train operation information of the target train; if there are associated trains, all train operation information represents the train operation information of the target train and the train operation information of the associated trains.

15. The driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S4 or step S5 comprises: Several central devices construct a spatial coordinate system based on the received train running path information, and mark the train running information of the trains and the trains corresponding to the trains according to the train running information, and represent them in the spatial coordinate system; After completion, it is detected whether there is a future motion overlap area between the target train and other trains. If so, the central device sends a train operation instruction including a stop to the train operation control devices of the target train and the corresponding other trains, and the train will stop in front of the overlapping area; If not, maintain the status quo.

16. The driving safety inspection method based on CTCS according to claim 10, characterized in that: The step S4 or step S5 comprises: After a number of train operation information capture devices obtain the train speed, the maximum speed control curve of the train is obtained through fitting calculation; Several train operation information capturing devices send the most restrictive speed control curve to the central device; After receiving the most restrictive speed control curve, the central device checks it with the relevant speed data in the train running path information; if the most restrictive speed control curve calculated by the train running information capture device is inconsistent with the relevant speed data in the train running path information, the most restrictive speed control curve is adjusted; After the adjustment is completed, if the train is still in operation and the speed exceeds the maximum speed limit of the adjusted maximum speed control curve, the central device sends a train operation instruction including the speed limit to the corresponding train operation control device, and the central device also starts the speed limit refresh processing with the train operation control device to check whether there is any inconsistency in the train operation instruction including the speed limit; if so, it is necessary to reissue the relevant unexecuted train operation instruction including the speed limit; After the adjustment is completed, if the train is not running at this time, or is in running state but the speed does not exceed the maximum speed limit of the adjusted maximum speed control curve, the status quo is maintained and the central equipment does not need to send relevant train operation instructions to the train operation control equipment.

17. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, a driving safety inspection method based on CTCS as described in any one of claims 10-16 is implemented.

18. An electronic device, characterized in that: It comprises a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, a driving safety inspection method based on CTCS as described in any one of claims 10 to 16 is implemented.

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