KR20220132913A - Ship maintenance system using redundant lines - Google Patents

Abstract

Disclosed is a ship maintenance system using dualized lines which can replace a fault part among dualized parts with a reserve part when a fault occurs to perform the maintenance of an autonomous ship. The ship maintenance system using dualized lines for autonomous sailing comprises: a repair analysis device collecting repair data of an autonomous ship, and analyzing the collected repair data to derive parts to be dualized; a plurality of dualized parts resulting from doubly installing the derived parts to be dualized; a plurality of sensors installed on the plurality of dualized parts to measure the state of the plurality of dualized parts; a monitoring device analyzing sensor data received from the plurality of sensors to monitor the state of the plurality of dualized parts and determines whether a fault occurs in the plurality of dualized parts; and a controller changing an operating line of a dualized part with a sensed fault occurrence if the fault occurrence is sensed.

Description

Ship maintenance system using redundant lines

The present invention relates to a ship maintenance system using a redundant line.

Autonomous vessel refers to a vessel capable of navigating an automatically set route without crew and, if necessary, controlling navigation and machinery (eg engine, rudder device) from a remote-controlled control center. To this end, a remote control and control center is required to remotely control an autonomous ship on the ground. In order to solve technical and legal problems, the captain and the chief engineer must directly conduct command and control at the remote control center.

On the other hand, the ship monitoring system includes the Maritime Safety Comprehensive Information System (GICOMS) of the Ministry of Oceans and Fisheries, the Remote Monitoring System (VPS) of Samsung Heavy Industries, the JSMEA SSAP (Smart Ship Application Platform) of Japan, and the Maritime Traffic Control System (VTS) of the Korea Coast Guard. etc. Here, the Maritime Safety Comprehensive Information System of the Ministry of Oceans and Fisheries provides the International Maritime Organization (IMO) long-range identification and tracking (LRIT) and SSAS (Ship Security Alert System) As a system to respond to measures to strengthen maritime security such as introduction, it is used for the purpose of minimizing human casualties by improving the ship rescue system in Korean coastal waters through ship monitoring. In addition, Samsung Heavy Industries' remote monitoring system is a system that can secure and compress the collected data, transmit it to land through satellite communication, and monitor the ship's condition based on the same information as onboard the ship from the land system. It provides functions such as remote monitoring of onboard MMI (Man Machine Interface) based on the control system, electronic payment system, electronic logbook in the form of shipping company request, and integrated document management and reporting. In addition, Japan's JSMEA SSAP is a ship application platform development project led by Japanese shipping companies (NYK), shipbuilders and manufacturers, and is jointly developed with the support of JSMEA (Japan Ship Machinery and Equipment Association) and Japanese Class NK. . In addition, the maritime traffic control system of the Korea Coast Guard is a system introduced to systematically control the passage of ships according to the increase in size, speed, and congestion of sea traffic along with the increase in maritime traffic. It is preventing and responding to marine accidents by acquiring information and distress signals.

However, such a conventional ship monitoring system has a problem in that it is difficult to use it for autonomously operated ships because the main purpose of the ship monitoring system is to reduce operation costs including fuel costs, and thus it is insufficient to consider the maintenance of the ship.

Therefore, the development of a maintenance system for autonomous ships is required.

Republic of Korea Patent Publication No. 10-1355359 (2014.01.17)

The present invention analyzes the repair data of an autonomous ship so that the parts that frequently fail are installed in duplicate for maintenance of the autonomous ship, and derives the parts to be duplicated. It is to provide a ship maintenance system using a redundant line that controls to be replaced with a spare part.

According to one aspect of the present invention, a ship maintenance system using a redundant line for an autonomously operated ship is disclosed.

A ship maintenance system using a redundancy line for an autonomously operated ship according to an embodiment of the present invention is a repair analysis device that collects repair data of the autonomously operated ship and analyzes the collected repair data to derive a part to be duplicated , a plurality of redundant parts in which the derived redundant parts are installed in duplicate, a plurality of sensors installed in the plurality of redundant parts to measure the state of the plurality of redundant parts, and sensor data received from the plurality of sensors by analyzing A monitoring device for monitoring the status of the plurality of redundant parts and determining whether or not a failure of the plurality of redundant parts occurs, and a controller for changing the operation line of the redundant parts in which the failure is detected when the occurrence of the failure is detected include

The repair analysis device analyzes the repair data to extract at least one repair history with a frequency higher than a preset number, and derives a part frequently replaced by a preset number or more from the extracted repair history as a duplicated target part. .

The plurality of redundant parts include a main part currently connected and used, a spare part to be replaced when the main part fails, and a switch for switching the connection from surrounding parts or devices to the main part or the spare part.

The controller controls the switch to switch from the main part to the spare part according to the detection of the occurrence of the failure.

The ship maintenance system using the redundant line according to the embodiment of the present invention analyzes the repair data of the autonomous ship so that the parts that frequently fail are installed in duplicate, and derives the parts to be duplicated. By controlling the replacement of defective parts with spare parts in parts, maintenance of autonomous ships can be performed.

1 is a diagram schematically illustrating the configuration of a ship maintenance system using a redundant line according to an embodiment of the present invention.
2 is a view schematically illustrating a redundant component according to an embodiment of the present invention.
3 is a flowchart illustrating an operation method of a ship maintenance system using a redundant line according to an embodiment of the present invention.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically illustrating the configuration of a ship maintenance system using a redundant line according to an embodiment of the present invention, and FIG. 2 is a diagram schematically illustrating a redundant component according to an embodiment of the present invention. Hereinafter, with reference to FIG. 1 , a ship maintenance system using a redundant line according to an embodiment of the present invention will be described, with reference to FIG. 2 .

Referring to FIG. 1 , a ship maintenance system using a redundant line according to an embodiment of the present invention includes a repair analysis device 110 , a plurality of redundant components 120 , a plurality of sensors 130 , and a monitoring device 140 . and a controller 150 .

As shown in FIG. 1 , the ship maintenance system using the redundant line according to the embodiment of the present invention may be mounted on the autonomously operated ship 100 .

Here, the repair analysis device 110 and/or the monitoring device 140 may be implemented through a network connectable server. For example, the server may perform a function of controlling and managing facilities of the autonomously operated vessel 100 or may perform a function of supporting the operation of the autonomously operated vessel 100 , and may perform repairs according to an embodiment of the present invention. It may be configured to include an analysis device 110 and a monitoring device 140 .

In the present specification, a server is a computing device that performs a ship maintenance method according to an embodiment of the present invention, and may be one or two or more physical entities. When the server is divided into a plurality of physical entities and implemented, the management subject of each physical entity may be different from each other. The server may include a DB, which means a functional and structural combination of software and hardware for storing information corresponding to each database, and the DB may be implemented as at least one table, and retrieve, store, and A separate DBMS (Database Management System) for managing may be further included. In addition, it can be implemented in various ways such as a linked-list, a tree, and a relational database, and includes all data storage media and data structures that can store information corresponding to the database.

Again, referring to FIG. 1 , the autonomous ship 100 includes a repair analysis device 110 , a plurality of redundant parts 120 , a plurality of sensors 130 , a monitoring device 140 , and a controller 150 . A ship maintenance system may be installed.

The repair analysis device 110 collects repair data of the autonomous ship 100 , and analyzes the collected repair data to derive a part to be duplicated.

For example, the repair analysis apparatus 110 includes a data input means, and receives repair data from a user of the autonomous ship 100 through the provided data input means, or includes various communication means, The repair data of the autonomously operated ship 100 may be received from the server of the land control center having the repair database of the autonomously operated ship 100 through various communication means.

Here, the repair data may include the type of ship, repair history, and repair loss, and the repair loss may include repair costs, loss costs due to non-operation, and the like.

The repair analysis device 110 analyzes the repair data of the autonomous ship 100 to extract at least one repair history having a frequency higher than a preset number, and parts that are frequently replaced more than a preset number of times from the extracted repair history. can be derived as a part to be duplicated.

In this case, the repair analysis apparatus 110 may derive a part with a large loss and a simple repair from among the derived parts frequently replaced as a duplicated part. That is, the repair analysis apparatus 110 may derive a simple replaceable part as a redundancy target part while the cost is higher than a preset reference value among the derived parts frequently to be replaced.

In addition, the repair analysis apparatus 110 may output the calculated information on the redundancy target part through an output unit (not shown) provided so that the user duplicates the redundancy target part. Accordingly, the user can check the redundancy target part and then perform redundancy on the corresponding part.

The plurality of redundant parts 120 are parts obtained by duplicating the parts to be duplicated derived by the repair analysis device 110, and as shown in FIG. 2, the main part 121 and the headquarters form 121 that are currently connected and used. ) may be configured to include a spare part 122 to be replaced in case of failure.

That is, referring to FIG. 2 , one redundant part 120 is the main part 121 that is currently connected and used, the spare part 122 that is replaced when the main part 121 fails, and the surrounding parts or devices. It may be configured to include switches 125 , 126 for switching the connection to the part 121 or the spare part 122 .

So, each redundant part 120 is a switch (125, 126) so that when the main part 121 is basically connected and operated and malfunction occurs, the connection with the main part 121 is cut off and connected to the spare part 122. can be controlled and switched from the main part 121 to the spare part 122 . For example, the user of the autonomous ship 100 may replace the disconnected main part 121 with a new part, and thereafter, the main part 121 replaced with the new part is replaced with the spare part 122 . can perform the role of

A plurality of sensors 130 are installed in various facilities of the autonomous ship 100 to measure the state of the various facilities. That is, the plurality of sensors 130 may be installed in various facilities and various parts of the autonomous vessel 100 including the plurality of redundant components 120 described above.

In particular, the plurality of sensors 130 according to an embodiment of the present invention may be installed on the plurality of redundant components 120 to measure the state of the plurality of redundant components 120 .

The monitoring device 140 is connected to the plurality of sensors 130 through wired/wireless communication, and receives sensor data measured from the plurality of sensors 110 through this.

That is, the monitoring device 140 may receive sensor data measured from the sensor 130 mounted on each redundant component 120 .

The monitoring device 140 analyzes sensor data received from the plurality of sensors 130 to monitor the status of the plurality of redundant components 120 of the autonomously operated vessel 100 , and each redundant component of the autonomously operated vessel 100 . It is determined whether a failure of (120) has occurred.

That is, the monitoring device 140 may repeatedly learn the sensor data of the normal state of the autonomously operated vessel 100 facility among the collected sensor data, and may calculate and store the predicted data of the normal state based on the learning. Here, the monitoring device 140 may select sensor data in a normal state from the collected sensor data using a normal range of sensor data defined for each sensor 130 .

Then, the monitoring device 140 compares the calculated predicted data of the steady state with the real-time measured sensor data to monitor the status of each redundant component 120 of the autonomous vessel 100, and predicts the steady state data and real-time. According to the magnitude of the difference in the measured sensor data, it is possible to detect an abnormality and determine whether a failure has occurred.

For example, the monitoring device 140 may determine that a failure has occurred when the difference between the predicted data in a normal state and the sensor data measured in real time exceeds a preset allowable value and continues for a predetermined time. Here, the allowable value may be set by statistically analyzing sensor data in a steady state in the process of generating the learning model.

The monitoring device 140 is a spare part 121 in place of the failure of the redundant part 120, that is, when detecting the occurrence of a failure of the main part 121 of the redundant part 120, the redundant part 120 is replaced. A component change command to replace with the component 122 may be transmitted to the controller 150 .

The controller 150 controls the switches 125 and 126 to switch from the main part 121 to the spare part 122 according to a part change command to be replaced with the spare part 122 instead of the main part 121 . Through this, the controller 150 may change the operation line of the redundant parts 120 of the autonomous ship 100 to bypass the main part 121 to the spare part 122 .

3 is a flowchart illustrating an operation method of a ship maintenance system using a redundant line according to an embodiment of the present invention.

In step S310, the repair data of the autonomous ship 100 is collected, and the collected repair data is analyzed to derive the parts to be duplicated. Here, the repair data may include the type of ship, repair history, and repair loss, and the repair loss may include repair costs, loss costs due to non-operation, and the like.

That is, the repair analysis device 110 analyzes the repair data of the autonomous ship 100 to extract at least one repair history whose frequency is higher than a preset number, and replaces it more than a preset number of times from the extracted repair history. Frequent parts can be derived as parts to be duplicated. In this case, the repair analysis apparatus 110 may derive a part with a large loss and a simple repair from among the derived parts frequently replaced as a duplicated part. That is, the repair analysis apparatus 110 may derive a simple replaceable part as a redundancy target part while the cost is higher than a preset reference value among the derived parts frequently to be replaced.

In step S320 , the user of the autonomous ship 100 checks the redundancy target part derived by the repair analysis device 110 , and then performs redundancy on the corresponding part.

In step S330 , the monitoring device 140 analyzes sensor data received from the plurality of sensors 110 installed in the plurality of redundant parts 120 of the autonomously operated ship 100 , and each redundant part of the autonomously operated ship 100 . (120) to perform maintenance monitoring.

In step S340 , the monitoring device 140 determines whether a failure occurs in each of the redundant components 120 of the autonomous ship 100 through maintenance monitoring.

For example, the monitoring device 140 may determine that a failure has occurred when the difference between the predicted data in a normal state and the sensor data measured in real time exceeds a preset allowable value and continues for a predetermined time.

The monitoring device 120 detects the occurrence of a failure, that is, when detecting the failure of the main part 121 of the redundant part 120, a spare part (instead of the malfunctioning main part 121) in the redundant part 120 122) may transmit a component change command to replace with the controller 150 .

In step S350 , the controller 150 controls the operation line of the redundant parts 120 of the autonomous ship 100 to bypass from the main part 121 to the spare part 122 according to the parts change command.

That is, the controller 150 may control the switches 125 and 126 to switch from the main part 121 to the spare part 122 according to the parts change command.

On the other hand, the components of the above-described embodiment can be easily grasped from a process point of view. That is, each component may be identified as a respective process. In addition, the process of the above-described embodiment can be easily understood from the point of view of the components of the apparatus.

In addition, the technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. A hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The above-described embodiments of the present invention have been disclosed for the purpose of illustration, and various modifications, changes, and additions will be possible within the spirit and scope of the present invention by those skilled in the art having ordinary knowledge of the present invention, and such modifications, changes and additions should be regarded as belonging to the following claims.

100: autonomously operated vessel
110: hydraulic analysis device
120: a plurality of redundant parts
130: a plurality of sensors
140: monitoring device
150: controller

Claims (4)

In a ship maintenance system using a redundant line for an autonomous ship,
a repair analysis device that collects repair data of the autonomous vessel, and analyzes the collected repair data to derive parts to be duplicated;
a plurality of redundant parts in which the derived parts to be duplicated are installed;
a plurality of sensors installed on the plurality of redundant components to measure states of the plurality of redundant components;
a monitoring device that analyzes sensor data received from the plurality of sensors to monitor the state of the plurality of redundant parts, and determines whether a failure of the plurality of redundant parts occurs; and
When the occurrence of the failure is detected, a ship maintenance system using a redundant line including a controller for changing an operation line of the redundant component in which the occurrence of the failure is detected.
According to claim 1,
The repair analysis device analyzes the repair data to extract at least one repair history whose frequency is higher than a preset number, and derives a part frequently replaced by more than a preset number from the extracted repair history as a duplicated target part A ship maintenance system using a redundant line, characterized in that.
According to claim 1,
The plurality of redundant parts,
This part currently connected and used;
Spare parts to be replaced in case of failure of the main part; and
A ship maintenance system using a redundant line, characterized in that it includes a switch for switching the connection from the surrounding parts or devices to the main part or the spare part.
4. The method of claim 3,
The controller is a ship maintenance system using a redundant line, characterized in that the control to switch the switch from the main part to the spare part according to the detection of the occurrence of the failure.

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