KR20160010781A - Symptom identifying device of offshore structure - Google Patents

Symptom identifying device of offshore structure Download PDF

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Publication number
KR20160010781A
KR20160010781A KR1020140090872A KR20140090872A KR20160010781A KR 20160010781 A KR20160010781 A KR 20160010781A KR 1020140090872 A KR1020140090872 A KR 1020140090872A KR 20140090872 A KR20140090872 A KR 20140090872A KR 20160010781 A KR20160010781 A KR 20160010781A
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KR
South Korea
Prior art keywords
support
battery
unit
hydrophilic paint
power supply
Prior art date
Application number
KR1020140090872A
Other languages
Korean (ko)
Inventor
도현선
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020140090872A priority Critical patent/KR20160010781A/en
Priority to PCT/KR2015/002454 priority patent/WO2015137768A1/en
Priority to CN201580012403.0A priority patent/CN106104648B/en
Priority to JP2016555754A priority patent/JP6345798B2/en
Publication of KR20160010781A publication Critical patent/KR20160010781A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/20—Status alarms responsive to moisture
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Disclosed is a device for identifying an abnormal symptom of a marine structure. The device for identifying an abnormal symptom of a marine structure according to an embodiment of the present invention comprises: a power unit for supplying power; a notifying unit for performing a determined notifying operation when the power is supplied; and a switching unit connected to a hydrophilic paint layer formed between a surface of a marine structure and an external coating layer, and determining whether the power unit and the notifying unit are electrically connected to each other.

Description

Description: TECHNICAL FIELD [0001] The present invention relates to a symptom identifying device of offshore structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for identifying an anomalous structure of a marine structure.

In recent years, considering the cases of overturning or breaking of offshore structures such as ships and offshore plants, it can be seen that most of them were not able to recognize in advance the occurrence of defects such as cracks in structures and delayed response to them.

In general, it is impossible to always inspect through regular non-destructive inspections, safety checks of structures, and preparation of preliminary design standards. However, it is not always possible to conduct inspections, and there is a limit to conduct long-term inspections throughout the entire structure.

Korean Patent Laid-Open Publication No. 10-2011-0037435 also discloses a system for evaluating and controlling damage to a ship and a method of operating the same. In this system, a sensing device for monitoring stress, It may be recognized as a dictionary. However, in this case, there is a disadvantage in that it is time-consuming to perform tasks such as data collection and analysis as well as cost, and it is impossible to respond promptly.

Particularly, the submerged part is a part where the marine structure continuously receives fatigue load from the fluid, and the monitoring work on this part is further difficult.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

Korean Patent Publication No. 10-2011-0037435

An object of the present invention is to provide an apparatus for identifying an anomalous structure of a marine structure capable of promptly identifying an abnormality in a structure portion submerged in water, .

In the present invention, when water is introduced through a capillary phenomenon in which water flows along a lattice channel coated on a surface of a marine structure, it is transmitted to the upper end of the channel to establish an electrical connection, And to provide an apparatus for identifying abnormality signs of marine structures.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, A notification unit for performing a designated notification operation when the power is supplied; And a switching unit connected to the hydrophilic paint layer formed between the surface of the marine structure and the outer coating layer to determine whether the power supply unit is electrically connected to the notification unit.

The hydrophilic paint layer is a capillary grid channel made of a hydrophilic paint. When water is penetrated, moisture can be moved by upward capillary phenomenon.

The switching unit may include: a switching structure having a scissors structure in which a first support and a second support are cross-coupled about a fixing pin; A wire interposed between one end of the first support and one end of the second support; And an inflator interposed between the other end of the first support and the other end of the second support, the inflator having a volume expanding in a state of absorbing moisture compared to a dry state, wherein the inflator is connected to the hydrophilic paint layer Can be.

One end of the first support and one end of the second support may meet with both ends of a circuit constituted by the power supply unit and the notification unit by expansion of the inflatable member and establish electrical connection through the electric wire.

The power supply unit may include a first battery and a second battery connected in series, and the switching unit may be interposed between the first battery and the second battery.

The notification unit may be at least one of a front lamp that emits light, a speaker that outputs sound, and a wireless communication device that transmits a signal designated to the designated terminal.

The hydrophilic coating layer may exhibit hue or change its color due to moisture penetration.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and the detailed description of the invention.

According to the embodiment of the present invention, when an abnormality occurs in a structure part that is submerged in water among the marine structure, it can be easily distinguished from the outside of the water, so that it is possible to respond quickly and efficiently to the operation of the marine structure.

In addition, when the water flows into the upper end of the channel through the capillary phenomenon in which the water flows along the lattice channel coated on the surface of the marine structure, when the water enters the crack, the electrical connection is established so that the abnormality outside the water can be easily observed .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining a principle of identifying an abnormal symptom of a marine structure according to an embodiment of the present invention;
FIG. 2 is a flowchart of a lattice channel coating method for identifying abnormal symptoms of a marine structure according to an embodiment of the present invention;
FIG. 3 is a view for explaining a lattice channel coating method for identifying an abnormal symptom of a marine structure according to an embodiment of the present invention;
FIG. 4 is a schematic configuration diagram of an abnormal symptom identifying apparatus according to an embodiment of the present invention;
5 is a diagram showing the operation of the switching unit,
FIG. 6 illustrates a comparison between a steady state and a damaged state of a vessel having a lattice-channel coating according to an embodiment of the present invention. FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the terms " part, "" module," and the like, which are described in the specification, mean a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view for explaining the principle of identifying anomalous signs of a marine structure according to an embodiment of the present invention.

In an embodiment of the present invention, the process of introducing paint into a marine structure such as a ship or an offshore plant is modified so as to be able to identify an anomaly such as a defect on the surface of the structure due to a crack or the like, from the deck .

The principle enabling such identification is as shown in Fig.

A grid channel is formed between the outer coating layer 23 coated with the waterproof coating material and the surface 10 of the structure in the hull where the water-soluble hydrophilic coating material (hydrophilic coating layer 22) .

In the steady state, there is no change due to the waterproof paint of the outer coating layer 23 (refer to (a)), but when cracks 5 are generated on the surface of the structure, damage is caused to the outer coating layer 23 The hydrophilic coating layer 22 absorbs water and the water absorbed by the capillary phenomenon can proceed to the upper end along the lattice channel composed of the hydrophilic coating layer 22 (see FIG.

An upper end of the lattice channel is connected to an identification device for establishing electrical connection by a member that expands in a wet state so that a user such as a crew can visually recognize the connection. The identification device will be described later in detail with reference to related drawings.

Here, the hydrophilic coating layer 22 exhibits the original color when water is absorbed, and the crack occurrence position can be visually distinguishable. In this case, the hydrophilic coating can be made in the form of a thin film (for example, starch tape or the like) or yarn made of colloidal particles of arbitrary color. Further, the color developed when the hydrophilic paint comes into contact with water may be a fluorescent color which is easy to be visually distinguished or a color (for example, a complementary color system such as black vs. yellow) which can be more clearly revealed than the background color of the surface of the structure.

The hydrophilic coating layer 22 and the outer coating layer 23 are coated on the surface 10 of the marine structure and the hydrophilic coating layer 22 and the outer coating layer 23 are coated on the surface 10 of the marine structure, The inner coating layer 21 made of a waterproof coating may be further applied to the waterproof coating so that the waterproof coating can be double-waterproof.

Hereinafter, a lattice channel coating method for identifying abnormal symptoms of a marine structure will be described with reference to related drawings, and then an identification device for easy observation will be described.

FIG. 2 is a flowchart of a lattice channel coating method for identifying anomalous indications of a marine structure according to an embodiment of the present invention. FIG. 3 is a view illustrating a lattice channel coating method for identifying abnormal symptoms of a marine structure according to an embodiment of the present invention. Fig.

Hereinafter, it will be assumed that the marine structure is a ship, and inner coating layers, hydrophilic paint layers, and outer coating layers are sequentially coated on the surface of the ship.

First, the hull is first coated with a waterproof paint (step S110), and an inner coating layer 21 is laminated on the hull surface 10 (see Fig. 3 (a)). If necessary, this process of first coating the hull with waterproof coatings may be omitted.

Next, the hydrophilic paint is taped in the form of a lattice channel (step S120) to laminate the hydrophilic paint layer 22 (see FIG. 3 (b)). Here, the hydrophilic paint may be a material that is dissolved when it is exposed to water. And may have a tape shape that is normally dry, thereby allowing taping in the form of a lattice channel.

When the taping of the hydrophilic paint is completed, the hull is re-coated with the waterproof paint (step S130), and the outer coating layer 23 made of the waterproof paint is laminated on the hydrophilic paint layer 22 (see FIG. If the ship is not damaged, the moisture permeation is suppressed by the waterproof paint of the outer coating layer 23, so that the hydrophilic paint can maintain the dry state.

Here, the lattice channel is a capillary channel made of a hydrophilic paint between the inner coating layer 21 and the outer coating layer 23, and when there is an abnormality such as a crack in the lower part and moisture (for example, seawater) (For example, a deck) to allow moisture to penetrate through the capillary phenomenon.

The lattice channel may have a lattice pattern in which the length and width are orthogonal at regular intervals over the entire surface of the ship.

Or a deformed lattice pattern similar to a tree structure in which the interval is narrow and the interval becomes wider as the distance is increased toward the upper part. In the case of deformed grid pattern, it is possible to reduce the amount of hydrophilic paint by reducing concentration of hydrophilic paint tapes at the point where abnormal symptoms are suspected and mitigating tap water of hydrophilic paint at other points.

The lattice channel extends to the railing on the deck and its end is connected to the identification device installed in the railing.

In this case, since the lattice channel is also formed at the upper part of the draft of the ship, it is possible to visually check the upper side of the lattice channel even when the ship is submerged in water, so that moisture penetrates due to the capillary phenomenon, It is possible to visually recognize the occurrence of an abnormal symptom in the lower part of the ship even outside the water.

In addition, when the color of the lattice channel is expressed or changed, that is, the path through which the water penetrates, the point where the abnormal symptom occurs can be found, and there is also an advantage that the lattice channel can cope promptly.

Hereinafter, an abnormality symptom identifying apparatus installed in a handrail will be described in detail with reference to the drawings.

FIG. 4 is a schematic configuration diagram of an abnormal symptom identification apparatus according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating an operation of the switching unit.

4 and 5 illustrate an abnormal symptom identification apparatus 50, a handrail 30, a grid channel 40, a first battery 51a, a second battery 51b, a notification unit 52, a switching unit 53, A wire 62, an inflator 61, a switching structure 60, a first support 60a, and a second support 60b.

The abnormality symptom identification device 50 according to an embodiment of the present invention is connected to the upper end of the grid channel 40 and may be installed in a handrail 30 provided around the deck of the sea structure.

The anomalous symptom identification device 50 is a notification device such as a lamp turn-on, a speaker output, a wireless signal transmission or the like as an open circuit becomes a close circuit by water (moisture) Can inform the crew or manager of the occurrence of an anomaly.

The abnormality symptom identifying apparatus 50 includes a power supply unit, a notification unit 52, and a switching unit 53.

The power supply unit and the notification unit 52 may be implemented as a circuit in which the electrical connection establishment is determined by the switching operation of the switching unit 53. [ Therefore, when the switching unit 53 establishes an electrical connection in a state where the power supply unit and the notification unit 52 are basically an open circuit, electricity flows through the circuit as a closed circuit and the notification unit 52 can perform the designated operation .

The power source unit may include a first battery 51a and a second battery 51b. The first battery 51a and the second battery 51b are electric energy generating devices that can be inserted into the handrail 30, for example, a battery or the like can be used.

The switching unit 53 is interposed between the first battery 51a and the second battery 51b to determine whether electrical connection between the first battery 51a and the second battery 51b is established.

The switching unit 53 is connected to the upper part of the lattice channel 40 and performs a switching operation by the moisture raised by the capillary phenomenon through the lattice channel 40 so that the electrical connection is established.

The notification unit 52 is connected in series to the first battery 51a and the second battery 51b and outputs a predetermined signal to the outside when an electrical connection is established.

For example, the notification unit 52 may be an electric bulb such as an incandescent lamp, an LED, or the like, and may emit light or output a predetermined sound through a speaker, or may transmit a signal designated as a terminal of a wireless communication device.

The operator can identify the abnormality of the marine structure through light, sound or terminal output signal, and can take necessary measures.

Here, the switching unit 53 includes a switching structure 60 of a scissors structure, an electric wire 62, and an inflator 61.

The switching structure 60 includes two support bodies 60a and 60b which cross the center of the fixing pin 63. The first support body 60a and the second support body 60b are provided at one end thereof with a wire 62, And the expansion body 61 is disposed at the other end.

The expandable body 61 is connected to the end of the lattice channel 40 and may be made of a material which is bulky in a wet state in which moisture is absorbed as compared with a dry state. For example, the inflator 61 may be made of a material such as silica gel.

One end of the first support body 60a is adjacent to the first battery 51a and one end of the second support body 60b is disposed adjacent to the second battery 51b.

The switching operation of the switching unit 53 is as follows.

The expandable body 61 interposed between the other end of the first support body 60a and the other end of the second support body 60b is small in volume in the dry state and the one end of the first support body 60a and the other end of the second support body 60b The first ends of the first and second cells 51a and 51b are not in contact with the first cell 51a and the second cell 51b, respectively (see FIG. 5A). Referring to the drawing, the end of the electric wire 62 and the first battery 51a are spaced apart by d, and the electric connection is not established.

The first supporting body 60a and the second supporting body 60b are fixed to the fixing pin 61. When water is transferred along the lattice channel 40 due to an abnormality such as a crack, the inflator 61 absorbs and expands, The first battery 51a and the second battery 51b are disposed at both ends of a circuit in which one end of the first support body 60a and one end of the second support body 60b are constituted by the power supply unit and the notification unit 53, And contacts the second battery 51b (see Fig. 5 (b)). The electric wire 62 is interposed between one end of the first support body 60a and one end of the second support body 60b so that both ends of the electric wire 62 are connected to the first battery 51a and the second battery 51b, So that an electrical connection can be established between the first battery 51a and the second battery 51b.

Here, the electric wire 62 has a length equal to or longer than the interval between the first battery 51a and the second battery 51b, so that the electric connection can be established smoothly.

In addition, when the inflator 61 absorbs moisture, the inflator 61 can be solidified into an inflated state so that the electrical connection can be maintained for a predetermined time or more.

Although the above description has been made on the assumption that the power supply unit is composed of two cells, this is only an example, and it is of course possible that the power supply unit may consist of only one cell. In the case of a single battery, it suffices that the switching unit has a connection relationship which allows the open circuit composed of the battery and the notification unit to be switchable to the closed circuit.

FIG. 6 is a view showing a comparison between a steady state and a damaged state of a lattice-channel coated vessel according to an embodiment of the present invention.

Fig. 6 (a) shows a ship in a steady state, and Fig. 6 (b) shows a case where a crack occurs on the bottom of the ship.

In the normal state, the notification unit does not perform any operation. In addition, there may be no indication on the appearance as in a general ship.

However, when a defect such as cracks occurs on the surface of a water-immersed vessel, a hydrophilic paint layer 22 made of a lattice channel made of a hydrophilic powder paint capable of being infiltrated into the cracked surface and between the coating film and being dissolved by the inflow water, The moisture indicator is moved by the capillary phenomenon along with the operation of the abnormality indication identifying device 50 so that the notifying section performs the notifying operation.

It is also possible to change the channel color of the lattice channel to easily identify anomalous signs outside the hull. Here, in the ship having the lattice channel coating, the end of the lattice channel can be located at the upper part of the ship's unfiltered part, that is, at the upper part of the ship's draft,

Alternatively, a view point for easily confirming the hydrophilic paint color-changed by the water raised along the lattice channel may be installed outside (for example, a ship deck).

In the case of a lattice-channel coated marine structure according to an embodiment of the present invention, even if a defect occurs in the coating of the structure, it becomes possible to recognize in advance, and preventive measures such as corrosion can be taken in advance, There is also an advantage of facilitating grasp.

In addition, the design of the shape, size, and position of lattice channels made of hydrophilic coatings in lattice channel coated marine structures is dependent on the characteristics of the hydrophilic paint, the time the water is immersed so that the capillary phenomenon develops well, Concentration of fatigue and frequency of fatigue. For example, the position of the lattice channel can be selected as a main position, such as a welded portion where the structure is most vulnerable.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

10: hull surface 21: inner coating layer
22: hydrophilic coating layer 23: outer coating layer
5: crack
30: Railing 40: Grid channel
50: abnormality symptom identification device 51a, 51b:
52: notification unit 53: switching unit
60: switching structure 61:
62: electric wire 60a: first support
60b: a second support

Claims (7)

A power supply for supplying power;
A notification unit for performing a designated notification operation when the power is supplied; And
And a switching unit connected to the hydrophilic paint layer formed between the surface of the marine structure and the outer coating layer to determine whether the power supply unit and the notification unit are electrically connected to each other. The method according to claim 1,
Wherein the hydrophilic paint layer is a capillary grid channel made of a hydrophilic paint, and when water is permeated, moisture is moved by upward capillary phenomenon. The method according to claim 1,
The switching unit includes:
A switching structure of a scissors structure in which a first support and a second support are cross-coupled around a fixing pin;
A wire interposed between one end of the first support and one end of the second support; And
And an expandable body interposed between the other end of the first support and the other end of the second support and expanding in volume in a state of absorbing moisture compared to a dry state,
Wherein the inflator is connected to the hydrophilic paint layer. The method of claim 3,
Wherein one end of the first support and one end of the second support come into contact with both ends of a circuit constituted by the power supply unit and the notification unit by expansion of the inflatable member and establish an electrical connection through the electric wire, Signs identification device. The method according to claim 1,
The power supply unit includes a first battery and a second battery connected in series,
Wherein the switching unit is interposed between the first battery and the second battery. The method according to claim 1,
Wherein the notification unit is at least one of a front lighting unit for emitting light, a speaker for outputting sound, and a wireless communication unit for transmitting a signal designated to the designated terminal. The method according to claim 1,
Wherein the hydrophilic paint layer is colored or changed in color by moisture penetration.
KR1020140090872A 2014-03-13 2014-07-18 Symptom identifying device of offshore structure KR20160010781A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020140090872A KR20160010781A (en) 2014-07-18 2014-07-18 Symptom identifying device of offshore structure
PCT/KR2015/002454 WO2015137768A1 (en) 2014-03-13 2015-03-13 Apparatus for identifying surface defect of ocean structure
CN201580012403.0A CN106104648B (en) 2014-03-13 2015-03-13 The Surface Defect Recognition device of marine structures
JP2016555754A JP6345798B2 (en) 2014-03-13 2015-03-13 Surface defect identification device for offshore structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140090872A KR20160010781A (en) 2014-07-18 2014-07-18 Symptom identifying device of offshore structure

Publications (1)

Publication Number Publication Date
KR20160010781A true KR20160010781A (en) 2016-01-28

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KR1020140090872A KR20160010781A (en) 2014-03-13 2014-07-18 Symptom identifying device of offshore structure

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110037435A (en) 2009-10-07 2011-04-13 한국해양연구원 Ship damage assessment and control system and operating method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110037435A (en) 2009-10-07 2011-04-13 한국해양연구원 Ship damage assessment and control system and operating method thereof

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