KR102454540B1 - Movable maintenance device for managing maintenance history of railway vehicle component and system using the same - Google Patents

Abstract

According to the present invention, in a mobile maintenance device for maintenance history management of railway vehicle parts, provided is a mobile maintenance device comprising: an electric mobile transport device capable of being moved and controlled by the operation of a worker; a boarding unit coupled to the lower end of one side of the electric mobile transport device and allowing the worker to board; a maintenance tool controller communicatively connected to a maintenance tool for maintenance of railway vehicle parts and receiving measured data related to a work operation of the maintenance tool; and a display unit communicatively connected to the maintenance tool controller and displaying information output from the maintenance tool controller. Accordingly, maintenance history management can be efficiently automated.

Description

Mobile maintenance device for maintenance history management of railway vehicle parts and a system using the same

The present invention relates to a mobile maintenance apparatus and a system using the same for managing the maintenance history of railway vehicle parts. More specifically, the present invention relates to a configuration of a mobile maintenance device for recognizing a QR code and interworking with work data of a maintenance tool for maintenance history management and traceability of railway vehicle parts such as fastening work, and a system using the same will be.

The urgency of preparing a method for optimizing the history management of parts subject to reliability management has increased according to the legislative regulation of railway vehicle reliability management and parts history management standards in 2019. According to the technical standards for railway vehicle history management, railway operators must establish and operate a computerized system for railway vehicle history management. In addition, a management number should be assigned to each major part and the cycle history should be managed for the production, replacement, and disposal of major parts.

However, as there is currently no unique identification information standard for managing the history of railway vehicle parts, when building the system, the device and parts discrimination function must be included through the Bill of Material (BOM), and it is possible to distinguish the same parts. The serial number identification function that can be used should be included, and the reliability and maintainability analysis function of the history-managed devices and parts should be included.

In addition, due to the absence of a policy on railway vehicle maintenance, it is necessary to establish policies such as operation of maintenance personnel, improvement of maintenance methods and maintenance guides, and standards for maintenance of railway vehicles.

In addition, the necessity of realizing field history management within the existing ERP (Enterprise Resources Management) system is emerging. Among the functions of the solution for corporate support in the relevant industry, it was confirmed that the field history management part was not configured to fit the actual corporate environment, so it was confirmed that there were frequent cases where people who worked did not use the function of the solution, and this part was applied to actual work. There was a need for a product that could be properly applied and interlocked with the existing system.

Accordingly, there is a need for a maintenance history management solution for railroad vehicle parts that can be easily accessed by any worker and has security applied safely, and a service or solution that can link various mobile smart devices applicable to work in accordance with the smart era is required. In addition, it is possible to check the status of railroad parts orders, material inventory, maintenance history management and inventory, shipment, replacement/disposal, etc. at a glance in real time at a glance. A traceable part maintenance history management method is needed.

(Patent Document 0001) Republic of Korea Patent No. 10-2241049

An object of the present invention is to provide a mobile maintenance device and a system using the same for QR code recognition and work data interlocking of a maintenance tool in order to manage the maintenance history of railway vehicle parts such as fastening work and secure traceability.

In addition, an object of the present invention is to improve the mobility and convenience of field workers, and to provide a mobile maintenance device and a system using the same, in which maintenance is performed in a one-stop on-site and maintenance history can be tracked through maintenance data interlocking.

In addition, the present invention newly establishes a part-specific number system suitable for the railroad environment in order to manage the history of railway vehicle parts unique numbers and secure traceability, and efficiently distribute parts by linking wireless communication-capable mobile devices and smart maintenance tools together. It aims to develop and provide a manageable history management system.

In addition, the present invention is not easy to move for maintenance and has a form that is easy to operate and boardable in consideration of the characteristics of railway vehicle parts and heavy maintenance tools disposed in a wide space, and has an external server, mobile terminal, and maintenance tool and wired/wireless An object of the present invention is to provide a mobile maintenance device that provides a communication function.

In addition, the present invention provides a mobile maintenance device that can be easily accessed by any railway vehicle parts maintenance worker, security is applied safely, provides a customized operation manual for the parts and the maintenance, and can efficiently automate maintenance history management, and An object of the present invention is to provide a system using the same.

The problems to be solved of the present invention are not limited to the above-mentioned contents, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

In one embodiment of the present invention, there is provided a mobile maintenance device for maintenance history management of railroad vehicle parts, comprising: an electric mobile transport device that can be controlled by a worker's operation; a boarding part coupled to a lower end of one side of the electric mobile transport device and configured to allow the operator to board; a maintenance tool controller communicatively connected to a maintenance tool for maintenance of the railway vehicle component and configured to receive measured data related to a working operation of the maintenance tool; and a display unit communicatively connected to the maintenance tool controller and configured to display information output from the maintenance tool controller.

In addition, the maintenance tool controller is connected to the mobile terminal possessed by the operator through a wireless communication network, and the railway vehicle part identification information obtained through QR code recognition through the mobile terminal can be transmitted to the maintenance tool controller .

In addition, the maintenance tool controller may be configured to output data related to a working operation of the maintenance tool based on the railway vehicle part identification information.

Further, the maintenance tool controller may be configured to communicate data related to a working operation of the maintenance tool to the maintenance tool, and the maintenance tool may be configured to operate based on data received from the maintenance tool controller.

In addition, the working operation of the maintenance tool is a fastening operation of a bolt or a nut, and the data measured in relation to the working operation of the maintenance tool includes torque values measured at a start time, an intermediate time, and a final time, and the maintenance tool The controller may determine whether a working operation of the maintenance tool is normal.

In addition, the mobile maintenance device may further include a laser marking machine configured to mark the QR code on the railway vehicle parts, and the laser marking head of the laser marking machine may be capable of height and rotation control through an articulated arm.

In addition, the mobile maintenance device may further include a maintenance tool holder configured to store the maintenance tool.

According to the present invention, it is possible to provide a mobile maintenance device and a system using the same for QR code recognition and work data interlocking of a maintenance tool in order to manage the maintenance history of railway vehicle parts such as fastening work and secure traceability.

In addition, according to the present invention, it is possible to provide a mobile maintenance device and a system using the same, in which the mobility and convenience of field workers are improved, and maintenance is performed in a one-stop on-site through connection of maintenance data and the maintenance history can be tracked.

In addition, according to the present invention, in order to secure the history management and traceability of the railway vehicle part unique number, it is efficiently It is possible to develop and provide a history management system that can manage parts.

In addition, according to the present invention, it is not easy to move for maintenance and has a form that is easy to operate and boardable in consideration of the characteristics of railway vehicle parts and heavy maintenance tools arranged in a wide space, and external servers, mobile terminals and maintenance tools and a mobile maintenance device providing a wired/wireless communication function.

In addition, according to the present invention, any railway vehicle parts maintenance worker can easily access, security is applied safely, and a mobile maintenance that can provide a customized operation manual for the parts and the maintenance and automate maintenance history management efficiently It is possible to provide an apparatus and a system using the same.

Effects of the present invention are not limited to the above-mentioned contents, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a conceptual diagram for explaining the configuration of an entire system for managing a maintenance history of railroad vehicle parts according to an embodiment of the present invention.
2 is a block diagram for explaining the configuration of a mobile maintenance device for managing the maintenance history of railroad vehicle parts according to an embodiment of the present invention.
3A and 3B are exemplary views illustrating a mobile maintenance device according to an embodiment of the present invention.
4A and 4B are exemplary views illustrating an operation state screen of a fastening operation according to an embodiment of the present invention.
5 is an exemplary view illustrating a result display screen of maintenance work according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase.

As used herein, “comprises”, “comprising” refers to the presence or absence of one or more other components, steps, operations and/or elements mentioned. addition is not excluded.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the effects thereof will be clearly understood through the following detailed description.

1 is a conceptual diagram for explaining the configuration of an entire system for managing a maintenance history of railroad vehicle parts according to an embodiment of the present invention.

The mobile maintenance device 100 is configured to be electrically movable on board by a worker or a user, includes a maintenance tool set for maintenance of railway vehicle parts, and includes a QR code reader function for recognizing parts. It may be configured to enable wireless transmission and reception in connection with a terminal or the like.

The mobile maintenance device 100, for example, can store and easily use a maintenance tool controller for smart maintenance tools, a wireless repeater (communication) for wireless communication, a touch panel type industrial PC for use at a maintenance work site, and a maintenance tool set. It may include a receiving unit configured to be so, and such devices may be appropriately disposed on an electric mobile transport device that can be controlled by a user's manipulation. A more specific configuration of the mobile maintenance device 100 will be described with reference to FIG. 2 .

The mobile maintenance device 100 may be connected to the operator terminal 200 in the form of a mobile terminal possessed by the operator through a wireless communication network, and the operator uses the QR code printed or attached to the railway vehicle parts through the operator terminal 200 It is possible to recognize and transmit the railway vehicle part identification information obtained through QR code recognition to the mobile maintenance device 100 .

As such, in order to manage the history of railway vehicle parts unique numbers and secure traceability, the QR code printed or attached to each part, for example, is based on the basic 8x8 size in the case of vehicle internal parts, and is easy to check and preferably in a place free from contamination. It can be affixed or engraved. In addition, in the case of vehicle exterior parts, if there is a large possibility of contamination due to exposure to the outside, or if direct engraving is required on a painted surface, etc., first cut the surface using a high-power laser marking machine included in the mobile maintenance device 100 and then a QR code on it can be engraved, and information such as a serial number can be engraved along with a QR code if necessary.

In addition, the worker terminal 200 may use an Android-based operating system (OS) in consideration of scalability, and may use a code interpretation algorithm to improve the recognition rate. In addition, the operator terminal 200 is configured to be able to communicate with the parts maintenance history management server 400 through a wireless communication network, and in connection with the database of the parts maintenance history management server 400, railway vehicle parts and maintenance history related data can transmit and receive.

The parts maintenance history management server 400 configures a code system system for parts history management through BOM (parts configuration system), and functions such as parts registration, parts inquiry, parts maintenance history management, operator authority setting, site monitoring, etc. and may be configured to include a database related to railway vehicle parts and a maintenance history of the parts.

In addition, the mobile maintenance device 100 is connected to be able to communicate with the parts maintenance history management server 400 using a wireless network, and in connection with the database of the parts maintenance history management server 400, railway vehicle parts and maintenance history related data can send and receive

In addition, the mobile maintenance device 100 may be connected to the maintenance tool 300 used by the operator when parts are maintained so as to be able to communicate using a wired/wireless network. The mobile maintenance device 100 may receive data measured in relation to the operation operation of the maintenance tool 300 through the maintenance tool controller. It may also be configured to transmit data related to the working operation of the maintenance tool 300 to the maintenance tool 300 , wherein the maintenance tool 300 is based on data received from the maintenance tool controller of the mobile maintenance device 100 . By being configured to operate automatically, the operator's convenience and safety can be increased by automatically setting a set value related to the operation control of the corresponding maintenance tool 300 based on the part information and maintenance history information currently being worked on.

In addition, data measured in relation to the work operation performed through the maintenance tool 300 may be transmitted to the maintenance tool controller of the mobile maintenance device 100 , and the mobile maintenance device 100 is based on the received data. Thus, it is possible to determine whether the work operation is normal and display the determination result so that the operator can check it. For example, the maintenance tool 300 may be a nut runner, which is a tool for quickly tightening and loosening nuts or bolts using electric power or compressed air, wherein the working operation of the maintenance tool may be a fastening operation of the bolt or nut, , the measured data related to the working motion of the maintenance tool includes the torque values measured at the starting point, the intermediate point, and the end point, and the maintenance tool controller controls the maintenance tool according to the measurement result of the torque value or the angle value over time. It is possible to determine whether the work operation is normal.

2 is a block diagram for explaining the configuration of a mobile maintenance device for managing the maintenance history of railroad vehicle parts according to an embodiment of the present invention.

The mobile maintenance device 100 is a systemized device for managing the maintenance history of railroad vehicle parts, and it is not easy to move, and considering the characteristics of railroad vehicle parts and heavy maintenance tools included in a railroad vehicle disposed in a wide space. It is easy to operate and has a form that a worker can ride, and is configured to be linked with an operator terminal and maintenance tool and a wired/wireless communication function, and as shown in FIG. It may include components such as the tool controller 140 , the industrial PC 150 , the display unit 160 , the laser marker 170 , and the communication unit 180 , but is not limited thereto.

The electric mobile transport device 110 is an electric device configured to be controlled by the operator's operation, and may include a steering wheel and a movement control-related control unit, and is easy to operate and boardable in consideration of the characteristics of the railway vehicle maintenance site. It may include a configuration of a model with a low risk of breakage having a shape of, for example, a wheel size of 13 inches or more in consideration of a moving road surface condition. The electric mobile transport device 110 has a transport part having a flat bottom surface, and a receiving part 130 necessary for maintenance on the transport part, a maintenance tool controller 140, an industrial PC 150, a display part 160, The laser marker 170, the communication unit 180, and the like may be appropriately disposed.

The boarding part 120 is coupled to the lower end of one side of the electric mobile transport device 110, is configured to allow an operator to board, and may have a structure that can be rotated to be folded upwards when the operator is not boarded.

The receiving unit 130 may include a maintenance tool holder configured to store maintenance tools having a weight of 5 to 10 kg or more, and the maintenance tool holder may include a pocket-type structure so that an operator can easily take it out and use it during maintenance. . In addition, it may include a drawer-type parts storage box for storing other accessories and miscellaneous materials.

The maintenance tool controller 140 may be communicatively connected to a maintenance tool 300 for maintenance of railroad vehicle parts, and may be configured to receive measured data related to a working operation of the maintenance tool 300 . . The maintenance tool controller 140 is connected to the mobile terminal possessed by the operator through a wireless communication network, and transmits the railway vehicle part identification information obtained through QR code recognition through the mobile terminal to the maintenance tool controller 140, The maintenance tool controller 140 may acquire parts information and maintenance history information for maintenance.

In addition, the maintenance tool controller 140 is configured to identify the maintenance tool 300 related to the necessary maintenance of the corresponding part based on the railway vehicle part identification information, etc., and to output data related to the operation operation of the corresponding maintenance tool 300 . The maintenance tool controller 140 is configured to transmit data related to the working operation of the corresponding maintenance tool 300 to the maintenance tool 300 , and the maintenance tool 300 is configured to transmit data received from the maintenance tool controller 140 . It may be configured to operate automatically based on

For example, the maintenance tool may be a nut runner, which is a fastening tool that quickly tightens and loosens a nut or bolt, and the working action of the maintenance tool is a fastening motion of the bolt or nut, and is related to the working motion of the maintenance tool. The measured data includes torque values measured over time at a start time, an intermediate time point, and a final time point, and the maintenance tool controller 140 determines whether the work operation of the corresponding maintenance tool is normal, and whether the maintenance tool is normal or not. Related data may be notified to the operator through the display unit 160 .

The industrial PC (computer) 150 is configured to be communicatively connected to the maintenance tool controller 140, the parts maintenance history management server 400, and the operator terminal 200 through the communication unit 180, the maintenance tool controller 140, It may be configured to process data transmitted and received with the parts maintenance history management server 400 and the operator terminal 200 , and may be configured to inform the operator of the output result through the display unit 160 .

The display unit 160 is configured to display information output from the maintenance tool controller 140, and also displays the parts identification information and maintenance history information obtained from the parts maintenance history management server 400 to the user, or the operator terminal ( 200) as a device for displaying the parts identification information and maintenance history information obtained from, or displaying the maintenance operation information obtained from the maintenance tool 300, and for displaying related menus or information, the industrial PC 150; It may be configured to display various information related to data transmitted and received with the operator terminal 200 , the maintenance tool 300 , and the parts maintenance history management server 400 . For example, the display unit 160 may include a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), or a flexible display. (flexible display), three-dimensional display (3D display), may be any one of a head mounted display (Head Mounted Display), but is not limited thereto, and may be configured in the form of a touch panel PC integrally with the industrial PC 150 have.

The laser marking machine 170 is configured to print or engraving a QR code through laser marking on railroad vehicle parts, a laser marking head 171 that performs laser marking on a workpiece, and a multi-joint arm supporting the laser marking head 171 (172). The laser marking head 171 is configured to enable height and rotation control through the articulated arm 172, moves through the electric mobile transport device 110, and laser marking at the marking position of rail vehicle parts requiring QR code engraving can be performed. After laser marking, it is possible to check whether the operation is normal or not through QR code recognition through the operator terminal 200 .

The communication unit 180 is configured to provide a wired/wireless communication network function to be able to communicate with the parts maintenance history management server 400 , the maintenance tool 300 and the operator terminal 200 , and when the network is a wireless communication network, cellular communication or short-distance communication It may include communication. For example, cellular communication includes Long-Term Evolution (LTE), LTE Advanced (LTE-A), 5th Generation (5G), Code Division Multiple Access (CDMA), Wideband CDMA (WCDMA), Universal Mobile Telecommunications System (UMTS), WiBro It may include at least one of (Wireless Broadband), Global System for Mobile Communications (GSM), and the like. In addition, the short-range communication may include at least one such as Wireless Fidelity (Wi-Fi), Bluetooth, Zigbee, Near Field Communication (NFC), or Radio Frequency Identification (RFID). However, the communication method is not limited thereto, and wireless communication technology developed later will be included.

In addition, although not shown in FIG. 2, it may further include a configuration of a spot welder configured to perform welding on the attachable surface of the part after engraving a code and text for identification on a name plate for attaching a QR code, through the spot welder It may be weldable to a place that is not painted or contaminated to attach a stainless steel nameplate.

3A and 3B are exemplary views illustrating a mobile maintenance device according to an embodiment of the present invention.

First, referring to FIG. 3A , the operator 310 can be easily moved through the handle 112 located on the upper portion of the electric transport device 110 in a state in which the operator 310 is boarded through the boarding unit 120 , and the operator 310 ) may have a structure that can be rotated so that the boarding unit 120 is folded upwards when not on board. In addition, the electric mobile transport device 110 may include, for example, a model configuration having a small wheel size of 13 inches in consideration of a moving road surface condition and a low risk of breakage.

The accommodating part 130 disposed on the left side on the transport part of the electric mobile transport device 110 may include a drawer-type component accommodating box for storing other accessories and miscellaneous materials, as shown in FIG. 3b . The right side may include a maintenance tool holder configured to store a maintenance tool consisting of 5 to 10 kg or more of heavy maintenance, and the maintenance tool holder may include a pocket-type structure so that an operator can easily take it out and use it during maintenance. The arrangement structure of the accommodating part 130 may be variously changed as needed.

In addition, the maintenance tool controller 140 disposed on the transport unit of the electric mobile transport device 110 is connected to communicate with the maintenance tool 300 by wire or wirelessly, and also the industrial PC 150 by wire or wirelessly. can be connected to communicate with

The industrial PC 150 is also connected to the display unit 160 located on the upper part, and information output from the maintenance tool controller 140 through the display unit 160, information obtained from the parts maintenance history management server 400 Parts identification information and maintenance history information, parts identification information and maintenance history information acquired from the operator terminal 200, maintenance operation information acquired from the maintenance tool 300, etc. are displayed, and related menus or information are displayed to the operator 310 It may be provided to users, and may be configured as a touch panel capable of a touch operation for user convenience.

The laser marking machine 170 may be configured to print or engrave a QR code through laser marking on railroad vehicle parts by being disposed on the receiving unit 130 and disposed on the upper part, and a laser marking head ( 171), it may include a multi-joint arm 172 for supporting the laser marking head (171).

The operator 310 can quickly move to a place where railroad vehicle parts that are not easy to move for maintenance are located using the mobile maintenance device 100 configured as described above, and can accommodate heavy maintenance tools and can be boarded for safety. and convenience are strengthened, and through various terminals, maintenance tools, and wired/wireless communication functions, it is possible to perform the maintenance of railway vehicle parts more efficiently and systematically and to manage the maintenance history.

4A and 4B are exemplary views illustrating an operation state screen of a fastening operation according to an embodiment of the present invention.

In the case of Fig. 4A, the operation operation setting screen of the maintenance tool of the nut runner for the tightening operation of the bolt or nut is shown, for example, (1) selecting the tightening direction in the starting step, and starting at a low speed for initial positioning ( soft start) can be selected. Next, (2) the speed, torque, and angle of the rundown operation in the intermediate rundown phase and the completion torque of the rundown phase may be set. Finally (3) a final target torque value is selected in the final tightening step, and a torque or angle limit can be set.

Based on the set values at the starting point, the intermediate point, and the final point, the set value related to the operation of the maintenance tool 300 suitable for the part in the corresponding environment, such as temperature and season, is set in advance by the maintenance tool controller of the movable maintenance device 100 140, according to the passage of time at the starting point, intermediate point, and final point stored in advance during maintenance operation through the maintenance tool for the maintenance operation of the part after the operator recognizes the part in the field Based on the set value, the maintenance tool 300 may be set to operate automatically. Through the automatic operation setting of such a maintenance tool, the effect of automating the maintenance manual can be obtained.

In addition, referring to FIG. 4B , the change in the torque value according to time measured by the maintenance tool 300 , that is, 1. soft start, 2. rundown completion, and 3. the change in the torque value according to the final torque step is a graph may be provided to the operator through, and the maintenance tool controller 140 may determine whether the operation operation of the corresponding maintenance tool is normal based on the change information of the torque value over time, and inform the operator of whether the operation is normal. have.

5 is an exemplary view illustrating a result display screen of maintenance work according to an embodiment of the present invention.

Referring to the example of FIG. 5 , the maintenance tool controller 140 may store the results of all tightening or loosening performed by the working operation of the maintenance tool of the nut runner and output it through the display unit 160 , The result list may include date and time information on which tightening or loosening was performed, virtual station information on which tightening or loosening was performed, tightening program information related to the tightening or loosening action, torque or angle results and result information indicating the result status, , it is possible to display a record of whether each operation result is normal or not.

The embodiments disclosed in the specification of the present invention are merely illustrative, and the present invention is not limited thereto. The scope of the present invention should be interpreted by the following claims, and all technologies within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: mobile maintenance device
110: electric mobile carrying device 120: boarding unit
130: receiving unit 140: maintenance tool controller
150: industrial PC 160: display unit
170: laser marking machine 180: communication unit
200: operator terminal
300: maintenance tool
400: parts maintenance history management server

Claims (7)

In the mobile maintenance device for maintenance history management of railway vehicle parts,
an electric mobile transport device that can be controlled by the operator's control;
a boarding unit coupled to a lower end of one side of the electric mobile transport device and configured to allow the operator to board;
a maintenance tool controller communicatively connected to a maintenance tool for maintenance of the railway vehicle component and configured to receive measured data related to a working operation of the maintenance tool; and
A display unit communicatively connected to the maintenance tool controller and configured to display information output from the maintenance tool controller
including,
The maintenance tool controller is connected to the mobile terminal possessed by the worker through a wireless communication network, and transmits the railway vehicle part identification information obtained through QR code recognition through the mobile terminal to the maintenance tool controller,
the maintenance tool controller is configured to output data related to the working operation of the maintenance tool based on the railway vehicle part identification information,
wherein the service tool controller is configured to communicate data related to working operations of the service tool to the service tool, the service tool being configured to operate automatically based on data received from the service tool controller;
The operation operation of the maintenance tool is a fastening operation of a bolt or a nut, and the data measured in relation to the operation operation of the maintenance tool includes torque values measured at a start time, an intermediate time, and a final time, and the maintenance tool controller includes: and determine whether a working operation of the maintenance tool is normal according to measured data related to a torque value over time. delete delete delete delete The mobile maintenance apparatus according to claim 1, further comprising a laser marking machine configured to mark the QR code on the railway vehicle parts, wherein the laser marking head of the laser marking machine is capable of height and rotation control through an articulated arm. The mobile maintenance device of claim 1, further comprising a maintenance tool holder configured to store the maintenance tool.

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