Signaling device installed in a railway vehicle and its operation method

Abstract

The in-vehicle signal device installed in the driver's cab of a railway vehicle according to the present invention comprises: a communication module connected to an LTE-R antenna and a GPS antenna; a signal output unit that outputs a display signal regarding whether a train is proceeding based on a plurality of colors; and a control unit that collects location information of a preceding train transmitted by an external radio block device (RBC) via the LTE-R antenna from the communication module, collects location information of the main train via the GPS antenna from the communication module, and controls the display signal output state of the signal output unit based on the location information of the preceding train and the location information of the main train.

Description

Technology Field

[0001] The present invention relates to a signal device installed inside the engine room of a railway vehicle and a method of operation thereof. Background Technology

[0002] A significant portion (approximately 70%) of the train control systems in domestic general railway sections is built using KTCS-1 (ATP) of the Korean Train Control System (KTCS), and KTCS-1 is installed as the on-board signaling device for trains operating on the relevant lines. Accordingly, as shown in Fig. 1, an ATP on-board device indicator is installed in the driver's cab, and when the train passes a balise, it operates within the speed limit indicated by the ATP on-board device according to track conditions and the position of the preceding vehicle.

[0003] A vehicle that has stopped during operation due to a safety operation caused by a failure of the KTCS-1 on-board signaling device or an error in driving handling is restarted after safety is confirmed and resumed operation. At this time, the restarted on-board signaling device must pass the next balise installation point ahead and receive the authority to move to switch to normal mode (FS mode, full monitoring mode), and until passing the balise, it operates at 45 km / h, which is the speed limit of the domestic engineer's responsibility mode.

[0004] Depending on the trip position of the train, general railways operate at 45 km / h over block sections of approximately 800 m on average (maximum approximately 4,500 m), causing operational delays including those involving related trains. Although drivers perform recovery operations to minimize operational delays through voice communication with the dispatcher, such as the ATP on-board driver responsibility mode or block operation, delays inevitably occur due to low-speed (45 km / h) operation, which is a major source of dissatisfaction for drivers and passengers.

[0005] In addition, due to the recent increase in demand for medium-to-high-speed vehicles, signal intervals on general railway sections are increasing, and in low-density sections, the signal interval reaches 4 km. When a general railway vehicle operates at 45 km / h in driver-responsible mode, the time required according to the signal interval is as follows.

[0006] Traffic signal section distance time taken note 800m 75 seconds Conventional 1600m 139 seconds today 4000m 330 seconds today

[0007] Accordingly, the present invention aims to minimize delays during recovery operation by installing a section speed limit based on the position of the preceding train inside the vehicle to minimize operational delays caused by operating at the driver responsibility mode speed limit (45 km / h) until the next balise during restart of the KTCS-1 (ATP) on-board device. Prior art literature

[0008] Republic of Korea Registered Patent 10-2171643 (Title of Invention: On-board signaling system of railway vehicle and automatic selection method of ground signaling device of jurisdictional section) The problem to be solved

[0009] The present invention aims to provide an in-vehicle signal device and a method of operation thereof, in which a signal indicating a section speed limit based on the position of a preceding train is installed inside the driver's cab of a railway vehicle to solve the aforementioned problems.

[0010] However, the technical problems that this embodiment aims to solve are not limited to the technical problems described above, and other technical problems may exist. means of solving the problem

[0011] According to one aspect of the present invention, an in-vehicle signaling device installed in the driver's cab of a railway vehicle comprises: a communication module connected to an LTE-R antenna and a GPS antenna; a signal outputter that outputs a display signal regarding whether a train is proceeding based on a plurality of colors; and a control unit that collects location information of a preceding train transmitted by an external radio block device (RBC) via the LTE-R antenna from the communication module, collects location information of a current train via the GPS antenna from the communication module, and controls the state of the display signal output of the signal outputter based on the location information of the preceding train and the location information of the current train.

[0012] According to another aspect of the present invention, a method of operation of an in-vehicle signaling device installed in the driver's cab of a railway vehicle comprises: a step in which the in-vehicle signaling device collects location information of a preceding train transmitted by an external radio blocking device (RBC) via an LTE-R antenna and collects location information of the present train via a GPS antenna; and a step of controlling the state of a display signal output of a signal output device based on the location information of the preceding train and the location information of the present train, wherein the signal output device outputs a display signal regarding whether the train is proceeding based on a plurality of colors. Effects of the invention

[0013] KTX and conventional trains equipped with existing ATP onboard devices continue operation by restarting after safety verification in accordance with operating rules when an ATP onboard device failure occurs during operation in an ATP section. However, after restarting, the train must pass the next block ATP ground device (balise) at the end of the block section to receive new movement authority. Therefore, according to conventional technology, since the train must operate at a slow speed (45 km / h) in driver responsibility mode until it reaches the next ATP ground device after restarting, operational delays inevitably occur. Furthermore, when operating in driver responsibility mode (SR) and visual operation (OS) modes in addition to the normal mode (FS mode, full monitoring mode) of the ATP onboard device, the driver performs driving based on signals installed on the ground; however, since signals in conventional railway sections are installed at an average interval of 800m, significant difficulties arise in driving during emergency operations.

[0014] According to the solution of the present invention described above, a signal device installed inside the train is implemented as a system independent of the ATP system, and the section speed limit according to the position of the preceding train is displayed, thereby supporting safe operation by the driver and minimizing the occurrence of operation delays caused by emergency situations. Brief explanation of the drawing

[0015] Figure 1 is a diagram illustrating the problems of a conventional train control system. FIG. 2 is a drawing for explaining the concept of an in-vehicle signal device installed in the driver's cab of a railway vehicle according to an embodiment of the present invention. FIG. 3 is a diagram illustrating the configuration of an in-vehicle signal device according to one embodiment of the present invention. FIG. 4 is a diagram illustrating the control operation of an in-vehicle installed signal device according to one embodiment of the present invention. FIG. 5 is a flowchart illustrating the operation method of an in-vehicle installed signal device according to one embodiment of the present invention. Specific details for implementing the invention

[0016] Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0017] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" with other components interposed between them. Furthermore, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0018] In this specification, the term "part" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Additionally, one unit may be realized using two or more pieces of hardware, and two or more units may be realized by one piece of hardware. Meanwhile, "part" is not limited to software or hardware, and "part" may be configured to reside in an addressable storage medium or configured to run on one or more processors. Accordingly, as an example, "part" includes components such as software components, object-oriented software components, class components, and task components, as well as processes, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and "parts" may be combined into a smaller number of components and "parts" or further separated into additional components and "parts." In addition, the components and '~parts' may be implemented to regenerate one or more CPUs within the device.

[0019] The in-vehicle signaling device mentioned below may be implemented as a computer or portable terminal capable of connecting to a server or other terminal via a network. Here, the computer includes, for example, a notebook, desktop, or laptop equipped with a web browser, and the portable terminal may include, for example, a wireless communication device that ensures portability and mobility, and may include all types of handheld-based wireless communication devices such as various mobile communication-based terminals, smartphones, and tablet PCs. Additionally, the "network" may be implemented as a wired network such as a Local Area Network (LAN), Wide Area Network (WAN), or Value Added Network (VAN), or any type of wireless network such as a mobile radio communication network or a satellite communication network.

[0020] FIG. 2 is a drawing for explaining the concept of an in-vehicle signal device installed in the driver's cab of a railway vehicle according to an embodiment of the present invention.

[0021] The onboard signal device (10) proposed by the present invention receives the location of a preceding train via LTE-R from a radio block signaling device (RBC) installed on the operating route as shown in the figure, and displays the speed limit according to the location of the preceding train on the onboard signal device (10), thereby facilitating recovery operation after ATP onboard device trip and restart, and reducing operation delay. In addition, the onboard signal device (10) is always operated regardless of the train's restart location.

[0022] For reference, the Radio Block Code (RBC) is a device that receives trackside status information from the interlocking system and calculates the train's movement authority and speed limit.

[0023] FIG. 3 is a diagram illustrating the detailed configuration of an in-vehicle installed signal device according to one embodiment of the present invention, and FIG. 4 is a diagram for explaining the control operation of an in-vehicle installed signal device according to one embodiment of the present invention.

[0024] The in-vehicle installed signal device (10) includes a control unit (100), a communication module (200), and a signal output device (300).

[0025] First, the communication module (200) is connected to an LTE-R antenna and a GPS antenna, and performs data communication through each antenna. The LTE-R antenna is coupled to the train, and through the antenna, it can collect location information of the preceding train transmitted by an external radio block device (RBC). In addition, the location information of the train can be collected through the GPS antenna. Meanwhile, in addition to the GPS antenna, it is also possible to use a GNSS antenna at the designer's choice.

[0026] Next, the signal output device (300) outputs a signal indicating whether the train is proceeding based on a plurality of colors. It is implemented according to a commonly used 5-aspect method, but the present invention is not limited thereto and may be implemented according to a 4-aspect or 3-aspect method depending on the embodiment. Additionally, the signal output device (300) may be implemented as a real lamp having a lighting function and may include a red (R) lamp, a yellow (Y) lamp, and a green (G) lamp. In addition, as another embodiment, it may also be implemented in a form that displays the red (R) lamp, the yellow (Y) lamp, and the green (G) lamp through a graphic UI output to a display. In addition, the signal output device (300) is implemented in a form that displays a red (R) lamp, two yellow (Y) lamps, and a green (G) lamp, and the order of their arrangement may be changed according to selection.

[0027] Next, the control unit (100) collects location information of a preceding train transmitted by an external radio block device (RBC) via an LTE-R antenna from the communication module (200), collects location information of the main train (a train equipped with an onboard signal device) via a GPS antenna from the communication module (200), and controls the display signal output state of the signal output device (300) based on the location information of the preceding train and the location information of the main train.

[0028] As illustrated in FIG. 4, the control unit (100) can output a stop (R) signal through the signal output unit (300) when a preceding train is located in the forward block, output a warning (YY) signal through the signal output unit (300) when a preceding train is located in the forward 2nd block, output a caution (Y) signal through the signal output unit (300) when a preceding train is located in the forward 3rd block, output a deceleration (YG) signal through the signal output unit (300) when a preceding train is located in the forward 4th block, and output a proceed (G) signal through the signal output unit (300) when a preceding train is located in the forward 5th block. At this time, the speed limit for the warning (YY) signal can be set to 25 km / h, the speed limit for the caution (Y) signal to 65 km / h, the speed limit for the deceleration (YG) signal to 105 km / h, and the speed limit for the proceed (G) speed can be set to the maximum allowable speed of the track.

[0029] Additionally, the control unit (100) can calculate the drivable forward block distance based on the position and speed of the preceding train and the position information of the current train, and output a signal using this. That is, the remaining distance (d) from the current train to the train ahead is compared with the drivable forward block distance (D), and if the difference is greater than the train length (L), the in-car signal can be displayed according to the forward block distance.

[0030] The display conditions are adjusted to match the maximum forward occlusion distance satisfying the mathematical formula below.

[0031] [Mathematical Formula]

[0032] d-D+L>0

[0033] For example, the display conditions can be adjusted for cases where the maximum anterior occlusion distance is an anterior occlusion distance, anterior 2nd occlusion distance, anterior 3rd occlusion distance, anterior 4th occlusion distance, and anterior 5th occlusion distance, respectively.

[0034] In addition, the control unit (100) can receive information from the RBC and output a stop (R) signal even when an abnormal situation occurs on the track, such as a rockfall or track intrusion, in the case of a forward blockage.

[0035] Meanwhile, the control unit (100) may be implemented in the form of a memory and a processor equipped with a control program, or in the form of an embedded processor.

[0036] FIG. 5 is a flowchart illustrating the operation method of an in-vehicle installed signal device according to one embodiment of the present invention.

[0037] First, the onboard signal device (10) collects location information of the preceding train transmitted by the external radio block device (RBC) through the LTE-R antenna and collects location information of the train through the GPS antenna (S510).

[0038] Next, the onboard signal device (10) controls the display signal output state of the signal output device (300) based on the position information of the preceding train and the position information of the current train (S520).

[0039] For example, in the case of a 5-aspect signal system, the control unit (100) can output a stop (R) signal through the signal output unit (300) when a preceding train is located in the forward block, output a warning (YY) signal through the signal output unit (300) when a preceding train is located in the forward 2-block, output a caution (Y) signal through the signal output unit (300) when a preceding train is located in the forward 3-block, output a deceleration (YG) signal through the signal output unit (300) when a preceding train is located in the forward 4-block, and output a proceed (G) signal through the signal output unit (300) when a preceding train is located in the forward 5-block. At this time, the speed limit for the warning (YY) signal can be set to 25 km / h, the speed limit for the caution (Y) signal to 65 km / h, the speed limit for the deceleration (YG) signal to 105 km / h, and the speed limit for the proceed (G) speed can be set to the maximum allowable speed of the track.

[0040] Additionally, the control unit (100) can calculate the drivable forward block distance based on the position and speed of the preceding train and the position information of the current train, and output a signal using this. That is, the remaining distance (d) from the current train to the train ahead is compared with the drivable forward block distance (D), and if the difference is greater than the train length (L), the in-car signal can be displayed according to the forward block distance.

[0041] The display conditions are adjusted to match the maximum forward occlusion distance satisfying the mathematical formula below.

[0042] [Mathematical Formula]

[0043] d-D+L>0

[0044] In addition, the control unit (100) can receive information from the RBC and output a stop (R) signal even when an abnormal situation occurs on the track, such as a rockfall or track intrusion, in the case of a forward blockage.

[0045] In this way, the onboard signal device (10) is configured to output a signal that can proceed to a block where braking distance can be secured, taking into account the position of the train ahead.

[0046] A method according to one embodiment of the present invention may also be implemented in the form of a recording medium comprising computer-executable instructions, such as a program module executed by a computer. A computer-readable medium may be any available medium accessible by a computer and includes both volatile and non-volatile media, and both removable and non-removable media. Additionally, a computer-readable medium may include a computer storage medium. A computer storage medium includes both volatile and non-volatile, removable and non-removable media implemented by any method or technique for storing information, such as computer-readable instructions, data structures, program modules, or other data.

[0047] Although the method and system of the present invention have been described in relation to specific embodiments, some or all of their components or operations may be implemented using a computer system having a general-purpose hardware architecture.

[0048] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0049] The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0050] 10: In-vehicle installed signaling device 100: Control unit 200: Communication module 300: Signal output device

Claims

Claim 1 An in-vehicle signaling device installed in the driver's cab of a railway vehicle, comprising: a communication module connected to an LTE-R antenna and a GPS antenna; a signal output unit that outputs a display signal regarding whether a train is proceeding based on a plurality of colors; and a control unit that collects location information of a preceding train transmitted by an external radio block device (RBC) via the LTE-R antenna from the communication module, collects location information of the main train via the GPS antenna from the communication module, and controls the display signal output state of the signal output unit based on the location information of the preceding train and the location information of the main train, wherein the in-vehicle signaling device distinguishes and outputs a display signal according to the location of the preceding train, sets the speed limit of the train differently according to the distinguished display signal, and operates continuously regardless of the restart location of the train. Claim 2 A signal device installed inside a train according to claim 1, wherein the control unit outputs a stop (R) signal through the signal output device when a preceding train is located in the preceding block, outputs a warning (YY) signal through the signal output device when a preceding train is located in the preceding 2nd block, outputs a caution (Y) signal through the signal output device when a preceding train is located in the preceding 3rd block, outputs a deceleration (YG) signal through the signal output device when a preceding train is located in the preceding 4th block, and outputs a proceed (G) signal through the signal output device when a preceding train is located in the preceding 5th block. Claim 3 A signal device installed inside a vehicle, wherein, in claim 1, the control unit outputs a stop (R) signal through the signal output unit when an abnormal situation occurs on the track in a forward block. Claim 4 In claim 1, the signal output device includes a red (R) lamp, a yellow (Y) lamp, and a green (G) lamp, or displays the red (R) lamp, yellow (Y) lamp, and green (G) lamp through a graphic UI output to a display, an in-vehicle installed signal device. Claim 5 delete Claim 6 A method of operation of an in-vehicle signal device installed in the driver's cab of a railway vehicle, comprising: (a) a step in which the in-vehicle signal device collects location information of a preceding train transmitted by an external radio block device (RBC) via an LTE-R antenna and collects location information of the main train via a GPS antenna; and (b) a step of controlling the state of a display signal output of a signal output device based on the location information of the preceding train and the location information of the main train, wherein the signal output device outputs a display signal regarding whether the train is proceeding based on a plurality of colors, and the in-vehicle signal device outputs a display signal by distinguishing the display signal according to the location of the preceding train, sets the speed limit of the train differently according to the distinguished display signal, and operates continuously regardless of the restart position of the train. Claim 7 In claim 6, the above step (b) is a method of operation of an onboard signal device, wherein a stop (R) signal is output through the signal output device when a preceding train is located in the preceding block, a warning (YY) signal is output through the signal output device when a preceding train is located in the preceding 2nd block, a caution (Y) signal is output through the signal output device when a preceding train is located in the preceding 3rd block, a deceleration (YG) signal is output through the signal output device when a preceding train is located in the preceding 4th block, and a proceed (G) signal is output through the signal output device when a preceding train is located in the preceding 5th block. Claim 8 A method of operation of an in-vehicle signal device according to claim 6, wherein the signal output device includes a red (R) lamp, a yellow (Y) lamp, and a green (G) lamp, or displays the red (R) lamp, the yellow (Y) lamp, and the green (G) lamp through a graphic UI output to a display. Claim 9 delete Claim 10 In claim 6, the above step (b) is to output a stop (R) signal through the signal output device when an abnormal situation occurs on the track in a forward block, a method of operation for an onboard signal device. Claim 11 A non-transient computer-readable recording medium having a computer program recorded thereon for performing a method of operating an in-vehicle installed signal device according to any one of claims 6 through 8 and 10.

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