KR20180034034A - Failure diagnostic method and system based on LTE-R - Google Patents

Abstract

The present invention relates to a failure diagnostic method and system based on LTE-R. In the failure diagnostic method based on LTE-R, when a control panel sends a vehicle inspection command to an on-board mobile station installed on a railway vehicle through an LTE-R network, based on the vehicle inspection command, the on-board mobile station checks whether there is abnormality in at least one from the driving device of the railway vehicle, a propulsion and auxiliary power source device, and a vehicle body. The on-board mobile station device transmits the inspection result to the control panel through the LTE-R network and displays the test result transmitted from the control panel. According to the present invention, the fault diagnosis of the railway vehicle can be performed remotely from a ground system in the system based on LTE-R. The maintenance of the railway vehicle can be efficiently performed.

Description

[0001] The present invention relates to a failure diagnosis method and system based on LTE-R,

The present invention relates to a fault diagnosis method and system based on LTE-R, and more particularly, to a fault diagnosis method and system based on LTE-R that can remotely diagnose a railway vehicle failure in a ground system.

Generally, a railway vehicle refers to a power car, a coach, a car, and a special car manufactured for the purpose of operating on a railway line. Railway vehicles are very complex structures that combine many electric devices and mechanical devices. It is important to secure stable lines for mass transportation and maintenance costs are higher than initial construction costs because they have a long life cycle .

Currently, railway radio communication technology applied to communication with domestic railway vehicles uses a 150 MHz band VHF (Very High Frequency) network for voice communications and an 800 MHz band TRS (Frequency Shared Communication) network for voice and data communications, Different routes are used differently. For this reason, there is a problem that the efficiency of operation and maintenance of the train is poor. In addition, there is a inherent limitation in the current railway communication technology that can not satisfy the service requirement which is increasingly high because the transmission of the high speed data is impossible.

Accordingly, an LTE-R (LTE-Railway) system is being developed to unify existing railway radio communication methods to increase the efficiency of operation and maintenance, and to realize various convergence services through high-speed data transmission. The LTE-R system is a railway-specific technology that utilizes LTE (Long Term Evolution) technology to transmit high-speed and large-capacity wireless data. Research and development for the commercialization of LTE-R integrated wireless network, ie LTE-R, is being carried out globally, and it is possible to provide voice and image services using LTE-R system, The train control data may be transmitted.

On the other hand, the maintenance of railway vehicles is basically carried out based on periodic preventive maintenance. That is, periodically, each device of the railway car is manually inspected or connected to the inspection system using a cable in the base, and inspection is carried out. In addition, even when a train control and monitoring system (TCMS) is used, various information is collected using a flash memory card or a notebook PC as an intermediary. In this case, it is a labor-intensive maintenance structure requiring a lot of manual work.

For this reason, maintenance of railway vehicles at present increases costs due to a lot of manual processes, deteriorates timeliness of fault information generated in railway vehicles in operation, and can not prevent accidents in advance, There is a limit to improve.

Therefore, in the newly developed LTE-R system, the remote fault diagnosis function is provided to the railway vehicle so that it can be monitored in the ground system such as the control panel, and when the fault is detected during the operation of the railway vehicle, It is necessary to consider measures to improve safety by preventing an accident beforehand.

Accordingly, it is an object of the present invention to provide a fault diagnosis method and system based on LTE-R that can perform a fault diagnosis of a railway vehicle remotely from a terrestrial system in an LTE-R based system.

According to another aspect of the present invention, there is provided a method of diagnosing LTE-R based failure, the method comprising: transmitting a vehicle inspection command from a control panel to an onboard mobile station installed in a railway vehicle through an LTE- Checking whether there is an abnormality in at least one of a traveling device, a propulsion and an auxiliary power source device and a vehicle body of the railway vehicle according to the vehicle inspection command; -R network to the control operation panel, and displaying the inspection result on the control panel.

According to another aspect of the present invention, there is provided an LTE-R-based fault diagnosis method including: transmitting a vehicle inspection command from a control panel to an onboard mobile station installed in a railway vehicle through an LTE-R network; A step in which the vehicle-mounted mobile station requests the vehicle-mounted monitoring system to perform a vehicle inspection according to an instruction from the train control and monitoring system; , And displaying the result of the vehicle inspection at the control panel.

According to another aspect of the present invention, there is provided a fault diagnosis method for an LTE-R-based fault diagnosis apparatus, the apparatus comprising: Detecting an abnormality, generating abnormality detection information and transmitting the abnormality detection information to the onboard mobile station apparatus mounted on the railway vehicle when the abnormality is found in the inspection result, and transmitting the abnormality detection information to the LTE-R Transmitting to the control operation panel through the network, and displaying contents corresponding to the anomaly detection information in the control operation panel.

Meanwhile, the LTE-R-based fault diagnosis system according to the present invention includes a mobile station device installed in a railway vehicle, and a mobile station device installed in each component part of the railway vehicle, And a fault diagnosis apparatus for checking whether or not an abnormality has occurred in at least one of the vehicle bodies, wherein the onboard mobile station apparatus controls the fault diagnosis apparatus in accordance with a vehicle inspection command transmitted through an LTE-R network, And transmits an inspection result of the abnormality through the LTE-R network.

According to the present invention, the failure diagnosis of a railway vehicle can be performed remotely from the ground system in an LTE-R based system, and maintenance of the railway vehicle can be efficiently performed. In addition, it is possible to perform fault diagnosis not only in the case where the railway vehicle is stopped at the base, but also in the case of running, so that when a failure is detected during the operation of the railway vehicle, it is notified to the ground system, The stability can be improved.

1 is a diagram illustrating an example of a LTE-R based system to which a failure diagnosis method according to the present invention is applied,
Fig. 2 and Fig. 3 are block diagrams of an on-vehicle apparatus in Fig. 1,
FIG. 4 is a flowchart provided in the description of a failure diagnosis method according to the first embodiment of the present invention; FIG.
5 is a flowchart provided in the description of the fault diagnosis method according to the second embodiment of the present invention, and
FIG. 6 is a flowchart provided in a description of a failure diagnosis method according to a third embodiment of the present invention. FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of a LTE-R based system to which a failure diagnosis method according to the present invention is applied.

1, a general control station, which is a ground system, includes a call server 110, a push-to-talk server 120, a command server 130, 140, a control panel 150, and the like.

The call server 110 supports Voice over IP (VoIP) or Voice over LTE (VoLTE) voice calls. The call server 110 can support a high-quality voice call even when the train is moving at a high speed.

The PTT server 120 supports a Push to Talk group call function and an SMS message transmission function in a common train wireless communication system.

The command server 130 provides functions such as user data management, equipment data management, user group management, user equipment status monitoring, call record management, passenger broadcast interface, and emergency interface for passengers. The command server 130 may be configured to operate in a hot-standby mode. When operating in the hot-standby mode, one of the two command servers 130 operates as an active server and the other server operates as a standby server. If the current server fails, the standby server automatically takes over the role of the current server. The dynamic information managed by the active server is automatically transferred to the standby server, so that the data managed by the server can be maintained consistently.

The main controller 140 controls the overall operation of the general control station by controlling the operation of the servers and various devices disposed in the general control station.

The control panel 150 provides a function for administrators to manage and control trains, stations, mobile terminals, and the like, and to operate voice and data services. For this purpose, various GUIs and screens can be provided have.

The LTE-R network 50 is a network conforming to the 3GPP LTE (Long Term Evolution) standard, and transmits and receives voice, data, and image data in a packet exchange manner. The LTE-R network 50 uses Orthogonal Frequency Division Multiple Access (OFDMA) as a downlink, Single Carrier Frequency Division Multiple Access (SC-FDMA) as an uplink, Quadrature Phase Shift Keying (QPSK) (16 Quadrature Amplitude Modulation) and 64QAM.

The base station / repeater device 200 connects the LTE-R network 50 with the onboard device 300 installed in the train for wireless communication service.

The portable terminal 400 can carry a VolP or VoLTE voice call function, a video PTT function, a multimedia group communication function, an SMS and an MMS function, and can be carried by a manager or a driver of a railroad car.

Fig. 2 and Fig. 3 are block diagrams of an on-vehicle apparatus in Fig.

2, the on-board device 300 includes a first on-board mobile station apparatus 310a installed in front of a train and a second on-vehicle mobile station apparatus 310b installed on the rear of a train can do. The first vehicle-mounted operating device 320a and the first display device 330a are connected to the first-vehicle-mobile station device 310a, and the second vehicle-operating panel 320b and the second display device 330b are connected to the second- 330b may be connected. The fault diagnosis apparatus 350 may be connected to the first and second mobile station devices 310a and 310b.

The first and second mobile station devices 310a and 310b can provide a VoIP or VoLTE voice call function, a video PTT function, a multimedia group communication function, SMS (Short Message Service) and MMS (Multimedia Message Service) have.

The first and second vehicle control panels 320a and 320b are provided with a display unit, a handset and a cradle, an operation button, and the like so that the user can perform a voice call or a video call, It also provides functions for manipulation.

The first and second display devices 330a and 330b may display information related to the operation of the train, an emergency message, and contents related to the occurrence of a fault.

The fault diagnosis apparatus 350 includes a sensor unit, a scanning unit, and the like, and is disposed around various apparatuses of the railway vehicle, and can perform a fault diagnosis function for various apparatuses of the railway vehicle.

3, a train control and monitoring system (TCMS) 370 for performing a comprehensive train management function may be installed instead of the fault diagnosis apparatus 350. [ The train control and monitoring system 370 is a centralized computer system capable of controlling and monitoring in-vehicle devices.

The LTE-R system with this structure is a next generation wireless communication system based on LTE. It is a next-generation wireless communication system based on LTE, and it can be used for voice services, video conferencing, CCTV, A data service including a video service including a car attendant monitoring, a control signal, and a large-capacity file transmission, and the like.

4 is a signal flow chart provided in the description of the fault diagnosis method according to the first embodiment of the present invention.

Referring to FIG. 4, the control panel 150 transmits a vehicle inspection command to the onboard mobile station 310 through the LTE-R network 50 (S500).

Upon receipt of the on-board inspection command, the onboard mobile station 310 checks whether there is an abnormality in various devices in the vehicle, such as a traveling device, a propulsion, an auxiliary power source device, a vehicle body, etc. (S505).

Inspection of the body includes body frame inspection, side structural frame inspection, roof structure inspection, lifting device inspection, cab inspection, passenger door inspection, inter-vehicle passage door and connection passage inspection, window and interior equipment inspection. Inspection of the traveling device includes wheel inspection, axle inspection, axial assembly inspection, suspension inspection, car support device inspection, braking device inspection, and connector inspection. Inspection of propulsion and auxiliary power devices includes inspection of power collector, inverter and converter inspection, traction motor inspection, internal combustion engine inspection, steam engine inspection and signal installation inspection.

In addition, it is possible to check whether the weight unevenness of the railway vehicle, the abnormal heating condition of the lower part of the vehicle, and the defect of the surface of the vehicle.

The onboard mobile station 310 transmits the inspection result to the control panel 150 through the LTE-R network 50 (S510). The control operation panel 150 displays the transmitted inspection result (S515).

The control operation panel 150 analyzes the transmitted inspection result, and when an abnormality is determined, an abnormal occurrence can be transmitted to the manager of the railway car or the portable terminal 400 carried by the driver so that appropriate measures can be taken (S520).

With this process, the fault diagnosis function of the railway vehicle can be performed remotely from the control panel 150, and the fault diagnosis function can be performed not only when the railway vehicle is stationary, but also when the vehicle is running.

5 is a signal flow diagram provided in the description of the fault diagnosis method according to the second embodiment of the present invention.

Referring to FIG. 5, the control panel 150 transmits a vehicle inspection command to the onboard mobile station 310 through the LTE-R network 50 (S550).

Accordingly, the onboard mobile station 310 requests the train control monitoring system 370 to inspect the vehicle (S555).

The train control and surveillance system 370 checks whether each part of the railway car is abnormal (S560).

The train control and monitoring system 370 can monitor and control various devices in the railway car in real time, automatically shut down and backup the devices in case of a failure, and record such occurrence of the situation in the internal memory.

The train control and surveillance system 370 transmits the vehicle inspection result to the onboard mobile station 310 in step S565 and the onboard mobile station 310 transmits the vehicle inspection result received from the train control surveillance system 370 to the LTE- (S570) to the control console 150 through the control unit 50 (step S570). The control operation panel 150 displays the transmitted vehicle inspection result (S575).

In this case, the control operation panel 150 analyzes the transmitted vehicle inspection result, and when an abnormality is determined, an abnormal occurrence is detected by the administrator of the railroad car or the portable terminal 400 ). ≪ / RTI >

6 is a signal flow chart provided in the description of the fault diagnosis method according to the third embodiment of the present invention.

Referring to FIG. 6, in step S600, the fault diagnosis apparatus 350 installed in each component of the railway vehicle checks whether there is an abnormality in at least one of the traveling apparatus, the propulsion unit, the auxiliary power unit, and the vehicle body. If an abnormality of the inspection result is found, the fault diagnosis apparatus 350 generates and transmits an abnormality detection information including the abnormality-detected apparatus and status information to the onboard mobile station 310 (S605).

The onboard mobile station 310 transmits the received abnormal detection information to the control panel 150 through the LTE-R network 50 (S610).

And displays contents corresponding to the anomaly detection information transmitted from the control operation console 150 (S615).

By this process, the main failure information of the train can be transmitted to the ground operation control unit 150 in real time via the LTE-R network 50 and displayed.

Instead of the fault diagnosis apparatus 350, information on the main apparatus monitored by the train control monitoring system 370 in real time may be transmitted to the control panel 150 through the onboard mobile station 310. [

The first and second mobile station devices 400a and 400b are communicably connected and redundant so that any one of the first and second mobile station devices 400a and 400b can perform voice communication, A call, a passenger broadcast, an emergency call request of a passenger, and the like, and the other device can be configured to perform the failure diagnosis function described in the above-described example.

Meanwhile, the fault diagnosis method and system in the LTE-R system according to the present invention can be applied to the configurations of the embodiments described above, but the embodiments can be applied to various implementations All or some of the examples may be selectively combined.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

110: Call server 120: PTT server
130: command server 140:
150: control operation panel 200: base station / repeater device
310a: first-phase mobile station apparatus 310b: second-phase mobile station apparatus
320a: first vehicle operating panel 320b: second vehicle operating panel
330a: first display device 330b: second display device
350: Fault diagnosis device 370: Train control monitoring system

Claims (10)

Transmitting a vehicle inspection command through a LTE-R network to an onboard mobile station installed in a railway vehicle;
Inspecting whether or not the vehicle-mounted mobile station apparatus is abnormal with respect to at least one of the traveling apparatus, the propulsion and auxiliary power source apparatus, and the vehicle body of the railway vehicle according to the vehicle inspection command;
Transmitting the inspection result from the onboard mobile station apparatus to the control panel through the LTE-R network; And
And displaying the test result in the control operation panel. The method according to claim 1,
And analyzing the test result and notifying the abnormality to the portable terminal held by the manager or the driver of the railway car when it is determined that there is an abnormality. The method according to claim 1,
Wherein the abnormality check is performed by a fault diagnosis apparatus installed in each component of the railway vehicle under the control of the onboard mobile station apparatus. Transmitting a vehicle inspection command through a LTE-R network to an onboard mobile station installed in a railway vehicle;
Requesting a vehicle inspection of the train control and surveillance system according to the vehicle inspection command;
Transmitting, by the LTE-R network, a result of the age check received from the train control and surveillance system to the control console; And
And displaying the result of the vehicle inspection on the control panel. 5. The method of claim 4,
Further comprising the step of notifying an abnormality occurrence to a portable terminal owned by an administrator or a driver of the railway vehicle when it is determined that there is an abnormality by analyzing the result of the vehicle inspection. Checking in real time whether or not an abnormality has occurred in at least one of a traveling device, a propulsion unit, an auxiliary power unit, and a vehicle body in a fault diagnosis apparatus installed in each constituent part of a railway vehicle;
Generating an anomaly detection information and transmitting the generated anomaly detection information to a vehicle-mounted mobile station mounted on the railway vehicle, when an abnormality is found as a result of the inspection;
Transmitting the anomaly detection information from the onboard mobile station apparatus to the control panel through the LTE-R network; And
And displaying contents corresponding to the anomaly detection information in the control operation panel. The method according to claim 6,
Further comprising the step of notifying an abnormality occurrence corresponding to the abnormality detection information to a portable terminal owned by an administrator or a driver of the railway vehicle. An onboard mobile station apparatus installed in a railway vehicle; And
And a failure diagnostic device installed in each component of the railway vehicle to check whether there is an abnormality in at least one of a traveling device, a propulsion and an auxiliary power device, and a vehicle body of the railway vehicle,
Wherein the onboard mobile station apparatus controls the fault diagnosis apparatus in accordance with a vehicle inspection command transmitted through an LTE-R network so that an abnormality test for the railway vehicle is performed, LTE-R < / RTI > network. 9. The method of claim 8,
Further comprising a control panel for transmitting the vehicle inspection command through the LTE-R network and receiving and displaying the inspection result of the abnormality through the LTE-R network. 9. The method of claim 8,
Further comprising a train control monitoring system for performing a vehicle inspection of the railway vehicle at the request of the onboard mobile station and transmitting the result to the mobile station.

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