KR102364685B1 - DTS-based overheat monitoring device - Google Patents

Abstract

The present invention is a technology for effectively mounting an optical fiber member to a temperature monitoring object in a distributed temperature sensing (DTS) system using an optical fiber as a temperature sensor. In particular, in attaching an optical fiber member, which is a temperature sensor, to a temperature monitoring object that is dispersed in a wide area or loaded with a number of parts, the present invention attaches the optical fiber member as long as possible and adheres to the surface of the temperature monitoring object without lifting it. It relates to technology that allows it to be attached. In particular, the present invention is a technology for conveniently attaching an optical fiber member, which is a temperature sensor, to the surface of a temperature monitoring object having various patterns. The present invention has the advantage of preventing omission from temperature monitoring since the target optical fiber member can be in contact with the main monitoring point of the temperature monitoring object for a long time.

Description

DTS-based overheat monitoring device {DTS-based overheat monitoring device}

The present invention is a technology for effectively mounting an optical fiber member to a temperature monitoring object in a distributed temperature sensing (DTS) system using an optical fiber as a temperature sensor.

In particular, in attaching an optical fiber member, which is a temperature sensor, to a temperature monitoring object that is dispersed in a wide area or loaded with a number of parts, the present invention attaches the optical fiber member as long as possible and adheres to the surface of the temperature monitoring object without lifting it. It relates to technology that allows it to be attached.

In particular, the present invention is a technology for conveniently attaching an optical fiber member, which is a temperature sensor, to the surface of a temperature monitoring object having various patterns.

In general, distributed temperature sensing (DTS) is a technology that measures the temperature of a certain area using the scattering phenomenon of an optical fiber, and uses the optical fiber itself as a temperature sensor. That is, the temperature of the optical fiber itself is measured at regular intervals in the section where the optical fiber is installed.

Since optical fiber is a medium that transmits light, DTS can measure temperature relatively accurately without being affected by high voltage current or magnetic field. It has the characteristic of being able to detect quickly.

In general, the DTS system measures the temperature using a so-called Raman scattering phenomenon, which is a type of backscattered light. That is, after irradiating a laser to the optical fiber, the temperature is inferred by analyzing the backscattered light that loses or gains energy among the light scattered from the laser.

[FIG. 1] is an exemplary diagram showing the backscattered light characteristics of the DTS system. Referring to FIG. 1, the temperature of the optical fiber can be calculated at regular intervals by using the ratio between the temperature-insensitive stroke signal and the temperature-sensitive anti-stroke signal through Raman scattering. can

[Fig. 2] is an exemplary diagram showing the response characteristics of the backscattered light of the DTS system. Referring to [Fig. 2], the temperature value can be calculated corresponding to the signal magnitude of the backscattered light, and depending on the arrival time of the reflected backscattered light after the laser is irradiated to the optical fiber (eg, 10ns, 20ns, 30ns, 40ns) The location of the calculated temperature (eg 1m, 2m, 3m, 4m) is known (1m = 10ns). In this case, the propagation speed and refractive index of light in the optical fiber are used to calculate the position.

[Fig. 3] is an exemplary diagram schematically showing the internal configuration of a general DTS system. Referring to FIG. 3 , the signal generating member 40 generates a trigger signal (eg, a 25 kHz square wave signal) and provides it to the laser output member 50 . In accordance with this trigger signal (eg, a 25 kHz square wave signal), the laser output member 50 irradiates a laser, and the laser irradiates the laser to the target optical fiber member 10 so as to pass through the reference optical fiber member 60 .

Back-scattered light with respect to the laser is generated from the target optical fiber member 10 , and the back-scattered light reaches the light receiving member 20 via the reference optical fiber member 60 . The light receiving member 20 acquires an optical signal (stroke signal) of a stroke wavelength of the Raman band and an optical signal (anti-stroke signal) of an anti-stroke wavelength from the backscattered light.

Meanwhile, the signal generating member 40 not only generates a trigger signal (eg, a 25 kHz square wave signal) and provides it to the laser output member 50 , but also generates a clock signal (eg, a 200 MHz square wave signal) to the AD converter member (30) is provided. The AD converter member 30 samples the stroke signal and the anti-stroke signal provided from the light receiving member 20 by a clock signal (eg, 200 MHz) to generate a series of digital values (backscattered light data). . The signal processing member 70 may obtain the temperature at regular intervals along the optical fiber by analyzing the backscattered light data generated by the AD converter member 30 .

Referring to FIG. 2 , a laser pulse is generated at a cycle of 1/25 kHz = 40 usec according to the trigger signal and transmitted to the target optical fiber member 10 . When the light receiving member 20 receives the backscattered light generated by the laser pulse and provides it to the AD converter member 30 , the AD converter member 30 samples at a 10 nsec period according to a 100 MHz clock signal to receive a plurality of A digital value, ie, a sequence of digital values, is provided to the signal processing member 70 . This digital value sequence is a plurality of digital values obtained by the AD converter member 30 A/D converting the stroke signal and the anti-stroke signal according to the clock signal at a period of 10 nsec. The signal processing member 70 calculates a temperature value at intervals of 1 m from the digital value sequence.

Such a DTS system is being used for fire monitoring of power facilities and power lines, battery fire monitoring of ESS systems, and tunnel fire monitoring.

On the other hand, it is important to make the temperature sensing interval small in the DTS system. In general, the temperature sensing interval is about 50 cm to 1 m.

Here, the target optical fiber member 10 monitors the temperature of the temperature monitoring object in a state in which it is installed while being dispersed over a wide area or attached to the temperature monitoring object on which a plurality of components are loaded. A method in which the target optical fiber member 10 winds the main monitoring point multiple times may be considered so that the temperature sensing part monitored by the target optical fiber member 10 does not deviate from the main monitoring point of the temperature monitoring object.

However, it is very difficult and sometimes impossible to wind several kilometers of optical fiber at a specific point. In addition, even if the winding itself is possible, a phenomenon in which the optical fiber is twisted occurs in the process of winding the target optical fiber member 10 to the main monitoring point of the temperature monitoring object, and thereby the target optical fiber member 10 is attached to the temperature monitoring object There is a problem in that the reliability of temperature sensing is lowered because it is not closely adhered.

Accordingly, a technique capable of solving the problems of the prior art as described above is desired.

An object of the present invention is to provide a technique for effectively mounting an optical fiber member to a temperature monitoring object in a distributed temperature sensing (DTS) system using an optical fiber as a temperature sensor.

In particular, it is an object of the present invention to attach an optical fiber member that is a temperature sensor to a temperature monitoring object that is dispersed in a wide area or loaded with a number of parts, while attaching the optical fiber member as long as possible without lifting it from the surface of the temperature monitoring object It is to provide a technology that allows it to be attached in close contact.

In particular, it is an object of the present invention to provide a technology for easily attaching an optical fiber member, which is a temperature sensor, to the surface of a temperature monitoring object having various patterns.

On the other hand, the problem to be solved of the present invention is not limited to these matters, and other problems to be solved can be understood from the description of the present specification.

In order to achieve the above object, the DTS-based overheat monitoring device according to the present invention includes a plurality of spiral twist pattern members 111 and a plurality of spiral twists made of optical fiber and spirally wound on a contact surface for each predetermined section. A target optical fiber comprising a plurality of linear pattern members 112 made of optical fibers connecting the pattern members, and a plurality of spiral twist pattern members 111 and a plurality of linear pattern members 112 are connected to form a single optical fiber line. member 110; a cover pad member 120 covering the outer surface of the target optical fiber member 110 in a state in which the target optical fiber member 110 is accommodated toward the temperature monitoring object; and a pad bonding member 130 for bonding the cover pad member 120 to the temperature monitoring object while being disposed on one surface of the cover pad member 120 facing the temperature monitoring object.

The DTS-based overheat monitoring device according to the present invention accommodates a plurality of temperature monitoring objects and guides the cover pad member 120 in which the target optical fiber member 110 and the pad bonding member 130 are accommodated to be seated on its upper surface. accommodating case member 210; In a state in which the cover pad member 120 is seated on the upper surface of the receiving case member 210, the case cover member 220 is seated on the upper surface of the receiving case member 210 to cover the cover pad member 120; may be included.

In the present invention, the spiral twist pattern member 111 is wound so that the central part corresponds to the Taegeuk pattern silhouette, and forms a pattern that is spirally wound in both directions on the outside of the Taegeuk pattern silhouette to form a gentle bending pattern in the entire winding section. can

In addition, in the present invention, the cover pad member 120 includes a plurality of seating groove members 121 in which one surface corresponding to the spiral twist pattern member 111 is recessed to a predetermined depth to accommodate the spiral twist pattern member 111; One surface corresponding to the linear pattern member 112 is recessed by a predetermined depth to accommodate the linear pattern member 112 and a plurality of guide groove members 122 communicating with the adjacent seating groove members 121; may be provided. . In this case, the pad bonding member 130 may be disposed adjacent to the seating groove member 121 and the guide groove member 122 in the cover pad member 120 .

In addition, in the present invention, a plurality of seating groove members 121 are provided in the vertical direction and left and right directions corresponding to the number of spiral twist pattern members 111 on one surface of the cover pad member 120, respectively, and a plurality of guides The groove members 122 may be disposed at a plurality of positions in a pattern for communicating the plurality of seating groove members 121 with each other.

On the other hand, the DTS temperature sensing patch according to the present invention is made of optical fiber and is spirally wound on the close contact surface, the central part is wound to correspond to the Taegeuk pattern silhouette, and is wound by forming a pattern that is spirally wound in both directions on the outside of the Taegeuk pattern silhouette. A target optical fiber member 110' having a spiral twist pattern member 111' that forms a gentle bend in the entire section and a linear pattern member 112' made of an optical fiber extending from the outermost part of the spiral twist pattern member to the outside. ); a cover pad member 120' that covers the outer surface of the target optical fiber member 110' in a state in which the target optical fiber member 110' is accommodated toward the temperature monitoring object; It may be configured to include a; pad bonding member 130' for bonding the cover pad member 120' to the temperature monitoring object while being disposed on one surface of the cover pad member 120' facing the temperature monitoring object.

In addition, in the present invention, the cover pad member 120' includes a seating groove member 121' in which one surface corresponding to the spiral twist pattern member 111' is recessed to a predetermined depth to accommodate the spiral twist pattern member 111'; One surface corresponding to the linear pattern member 112' is recessed to a predetermined depth to accommodate the linear pattern member 112', and a plurality of guide groove members 122' communicating with the adjacent seating groove members may be provided. In this case, the pad bonding member 130 ′ may be disposed adjacent to the seating groove member 121 ′ and the guide groove member 122 ′ in the cover pad member 120 ′.

The present invention has the advantage of preventing omission from temperature monitoring since the optical fiber can be in contact with the main monitoring point of the temperature monitoring object for a long time.

In addition, the present invention shows the advantage that the optical fiber can be easily attached to the surface of a temperature monitoring object by configuring the optical fiber in a module structure of a spiral twist pattern member and a linear pattern member.

In addition, the present invention also shows the advantage of increasing the temperature sensing reliability because the optical fiber can be wound on the surface of the temperature monitoring object without being lifted by winding the optical fiber so as not to be twisted.

[FIG. 1] is an exemplary diagram showing the backscattered light characteristics of a general DTS system;
[Figure 2] is an exemplary diagram showing the response characteristics of backscattered light of a general DTS system;
[FIG. 3] is an exemplary diagram schematically showing the internal configuration of a general DTS system;
[Figure 4] is an exemplary diagram of temperature monitoring of a substation (GIS), which is a temperature monitoring object for the present invention;
[FIG. 5] is an enlarged view of a part of [FIG. 4];
[Fig. 6] is an exemplary view of the appearance of a substation, which is a temperature monitoring object for the present invention;
[Fig. 7] is an excerpt of a part of [Fig. 6],
[Fig. 8] is an exemplary diagram showing the separation of the DTS-based overheat monitoring device according to the present invention;
[FIG. 9] is a view of a state in which the target optical fiber member is coupled to the cover pad member in [FIG. 8];
[Fig. 10] is an exemplary diagram showing a combined state of the DTS-based overheat monitoring device according to the present invention;
[FIG. 11] is an exemplary view showing the separation of the target optical fiber member and the cover pad member, which are the components of the present invention;
[Fig. 12] is a view of a state in which each configuration of [Fig. 11] is combined;
[FIG. 13] is an enlarged view of a portion of [FIG. 12],
[FIG. 14] is an exemplary view of a state in which the pad bonding member is coupled in [FIG. 12];
[FIG. 15] is an enlarged view of an excerpt of a part of [FIG. 14];
[Fig. 16] is an exemplary diagram showing a DTS temperature sensing patch according to the present invention.

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

[FIG. 4] is an exemplary diagram of temperature monitoring of a gas insulation substation (GIS), which is a temperature monitoring object to which the DTS temperature sensing patch and DTS-based overheat monitoring device according to the present invention are applied, and [FIG. 5] is [FIG. 4] As an enlarged part of a portion, it is an exemplary diagram of temperature monitoring in a state in which the DTS temperature sensing patch or DTS-based overheat monitoring device according to the present invention is applied. [Fig. 6] is an exemplary diagram of the appearance of a substation, which is a temperature monitoring object to which a DTS temperature sensing patch or DTS-based overheat monitoring device according to the present invention is applied, and [Fig. 7] is a parallel capacitor ( It is an exemplary diagram of temperature monitoring in a state in which the DTS temperature sensing patch or DTS-based overheat monitoring device according to the present invention is applied to the serial condenser (SC).

4 to 7, the DTS temperature sensing patch and the DTS-based overheat monitoring device are mounted on various patterns of temperature monitoring objects (eg, substations, battery packs) and are installed in each area of the temperature monitoring object. monitor the temperature for

Here, the target optical fiber member 110 is arranged long in a state that does not break in the middle as shown in [Fig. 3]. The target optical fiber member 110 is in contact with various positions of the temperature monitoring object. The temperature will be monitored at regular intervals (eg 50 cm intervals).

At this time, since the minimum temperature measurement interval is about 50 cm to 1 m due to the characteristics of the target optical fiber member 110 as a temperature sensing sensor, the target optical fiber member 110 must be wound at least 50 cm to 1 m at a particularly important temperature monitoring point. Temperature sensing for the corresponding point can be performed without omission.

In addition, if a kinking phenomenon occurs in the process of winding the target optical fiber member 110 , it is also necessary to consider that the reliability of temperature sensing may be deteriorated because a phenomenon occurs in the contact portion with the temperature monitoring object.

[FIG. 8] is an exemplary view showing the separation of the DTS-based overheat monitoring device according to the present invention, and [FIG. 9] is a state in which the target optical fiber member 110 is coupled to the cover pad member 120 in [FIG. 8]. FIG. 10 is an exemplary diagram illustrating a combined state of the DTS-based overheat monitoring device according to the present invention.

[FIG. 11] is an exemplary view showing the extracted and separated target optical fiber member 110 and the cover pad member 120, which are components of the present invention, and [FIG. 12] is a view of a state in which each component in FIG. 11 is combined. and [Fig. 13] is an enlarged view of an excerpt of a part of [Fig. 12], [Fig. 14] is an exemplary view of a state in which the pad bonding member is coupled in [Fig. 12], and [Fig. 15] is [ 14] is an enlarged view of an excerpt.

8 to 15 , the DTS-based overheat monitoring device according to the present invention includes a target optical fiber member 110 , a cover pad member 120 , a pad bonding member 130 , and a receiving case member 210 . ), may be configured to include a case cover member (220).

The target optical fiber member 110 is formed in a one-body shape so as not to be broken in the form of a long cable of, for example, about 4 km, and as shown in Figs. A member 112 may be provided.

The plurality of spirally twisted pattern members 111 are formed by spirally winding an optical fiber on a contact surface for each predetermined section as shown in FIGS. 11 to 15 .

The plurality of linear pattern members 112 are optical fiber lines connecting between the plurality of spiral twist pattern members 111 adjacent to each other as shown in FIGS. 11 to 15 .

On the other hand, the spiral twist pattern member 111 is preferably formed in a shape that is not twisted with each other in the winding section so that the target optical fiber member 110 abuts on the surface of the temperature monitoring object in a non-extended state.

To this end, the spiral twist pattern member 111 is wound such that its central part corresponds to the Taegeuk pattern silhouette as in [Figs. can As a result, it is possible to form a gentle bending pattern as in [FIG. 13] and [FIG. 15] in the entire winding section.

If, in the process of winding the target optical fiber member 110, it is bent abruptly at any point exceeding the allowable radius of curvature, the target optical fiber member 110 is damaged, so the function as a sensor for signal transmission is limited. problem arises.

The cover pad member 120 may preferably be made of an elastic material such as silicone or a heat dissipation pad, and accommodate the target optical fiber member 110 toward the temperature monitoring object as shown in FIGS. 8 to 10 . In this state, the outer surface of the target optical fiber member 110 may be covered.

The cover pad member 120 may include a plurality of seating groove members 121 and a plurality of guide groove members 122 as shown in FIGS. 11 to 15 .

The plurality of seating groove members 121 may be configured such that one surface corresponding to the spiral twist pattern member 111 is recessed to a predetermined depth to accommodate the spiral twist pattern member 111 as shown in FIGS. 13 and 15 . there is.

Here, the plurality of seating groove members 121 are vertically and horizontally corresponding to the number of spiral twist pattern members 111 on one surface of the cover pad member 120 as shown in FIGS. 11 to 15 . A plurality of each may be provided and may be arranged in a lattice form as a whole as shown in FIG. 11 . Through this, the seating groove member 121 individually accommodates the plurality of spiral twist pattern members 111 constituting the target optical fiber member 110 in the recessed region in a grid shape.

The plurality of guide groove members 122 have one surface corresponding to the linear pattern member 112 recessed to a predetermined depth as shown in FIGS. 13 and 15 to accommodate the linear pattern member 112 and adjacent seating groove members. It may be configured to communicate with (121).

In this case, the plurality of guide groove members 122 may be respectively disposed at a plurality of positions in a pattern for communicating the plurality of seating groove members 121 with each other as shown in FIGS. 11 to 15 . That is, as shown in [Fig. 11], the guide groove member 122 has a seating groove member 121 adjacent to each other with respect to a plurality of seating groove members 121 configured in a grid shape along the vertical and left and right directions. One surface is recessed to a predetermined depth so as to communicate with each other. Through this, as shown in [Fig. 12], the guide groove member 122 is a linear pattern member connecting the spiral twist pattern member 111 accommodated in the seating groove member 121 adjacent to each other in its own recessed region. (112) are individually housed one by one.

As a result, for example, in attaching the 4 km long target optical fiber member 110 wound at every predetermined section to the temperature monitoring object, the long target through the cover pad member 120 as in fastening one module to the temperature monitoring object. The optical fiber member 110 can be easily attached to the temperature monitoring object.

The pad bonding member 130 is disposed on one surface of the cover pad member 120 facing the temperature monitoring object as shown in FIG. 15 , and bonds the cover pad member 120 to the temperature monitoring object. 15 , since the target optical fiber member 110 is accommodated in the cover pad member 120 , when the cover pad member 120 is bonded to the temperature monitoring object by the pad bonding member 130 , the inside of the cover pad member 120 is attached to the temperature monitoring object. The accommodated target optical fiber member 110 is in close contact with the corresponding temperature monitoring object.

The pad bonding member 130 may be disposed adjacent to the seating groove member 121 and the guide groove member 122 in the cover pad member 120 as shown in FIG. 15 .

Here, the pad bonding member 130 may be, for example, a double-sided tape or an adhesive.

The receiving case member 210 may be configured to accommodate a plurality of temperature monitoring objects inside thereof, and the target optical fiber member 110 and the pad bonding member 130 are accommodated as shown in FIGS. 8 to 10 . Guides the cover pad member 120 to be seated on its upper surface.

The case cover member 220 is accommodated in the form of covering the cover pad member 120 in a state in which the cover pad member 120 is seated on the upper surface of the receiving case member 210 as shown in FIGS. 8 to 10 . It may be seated on the upper surface of the case member 210 .

As such, due to the provision of the receiving case member 210 and the case cover member 220, for example, in attaching the long target optical fiber member 110 of about 4 km wound at each predetermined section to the temperature monitoring object, [FIG. 10] It is possible to easily attach the long target optical fiber member 110 to the temperature monitoring object in the same way that one module is fastened to the temperature monitoring object.

[Fig. 16] is an exemplary diagram illustrating a DTS temperature sensing patch according to the present invention. Referring to FIG. 16 , the DTS temperature sensing patch may include a target optical fiber member 110 ′, a cover pad member 120 ′, and a pad bonding member 130 ′.

The target optical fiber member 110' is made in a one-body shape so as not to be broken in the form of a long cable of, for example, about 4 km, and has a spiral twist pattern member 111' and a linear pattern member 112' as shown in [Fig. 16]. can do.

The spiral twist pattern member 111 ′ is spirally wound on the contact surface as shown in FIG. 16 .

Here, it is preferable that the spiral twist pattern member 111 ′ is not twisted with each other in the winding section so that the target optical fiber member 110 ′ comes into contact with the surface of the temperature monitoring object in a non-extended state.

In detail, the spiral twist pattern member 111 ′ may form a pattern in which the central portion thereof is wound to correspond to the Taegeuk pattern silhouette and spirally wound in both directions at the outer edge of the Taegeuk pattern silhouette, as shown in FIG. 16 . That is, referring to [Fig. 16], the central portion of the spiral twist pattern member 111' is wound along the Taegeuk-pattern silhouette in a relatively very wide space. In [FIG. 16], the central portion is formed as a wide space having a diameter of half or more of the entire spiral twist pattern member 111'. In addition, referring to [Fig. 16], the outer periphery of the spiral twist pattern member 111' is densely and bi-directionally wound in a narrow region of thin thickness that remains occupied by the central portion in the outer perimeter of the Taegeuk-pattern silhouette. Through this configuration, the spiral twist pattern member 111' can form a gentle bending pattern as shown in [FIG. 16] in the entire winding section.

If, in the course of winding the target optical fiber member 110', the target optical fiber member 110' is bent abruptly exceeding the allowable radius of curvature at any one point, the bent portion is damaged. This limited problem arises.

The linear pattern member 112 ′ is an optical fiber line extending from the outermost portion of the spiral twist pattern member 111 ′ to the outside as shown in FIG. 16 .

The cover pad member 120' may preferably be made of an elastic material such as silicon or a heat dissipation pad, and the target optical fiber member 110' is accommodated toward the temperature monitoring object as shown in [Fig. 16]. The outer surface of the optical fiber member 110 ′ may be covered.

The cover pad member 120 ′ may include a seating groove member 121 ′ and a plurality of guide groove members 122 ′ as shown in FIG. 16 .

The seating groove member 121 ′ may accommodate the spiral twist pattern member 111 ′ as one surface corresponding to the spiral twist pattern member 111 ′ is recessed to a predetermined depth as shown in FIG. 16 .

The plurality of guide groove members 122 ′ have one surface corresponding to the linear pattern member 112 ′ recessed to a predetermined depth to accommodate the linear pattern member 112 ′ and adjacent seating groove members 121 as shown in FIG. 16 . ') and may be configured to communicate with.

As a result, for example, in attaching a 4 km long target optical fiber member 110 ′ wound at every predetermined section to the temperature monitoring object, one module is connected to the temperature monitoring object through the cover pad member 120 ′. The long target optical fiber member 110' can be easily attached to the temperature monitoring object.

The pad bonding member 130' is disposed on one surface of the cover pad member 120' facing the temperature monitoring object as shown in [Fig. 16] and bonds the cover pad member 120' to the temperature monitoring object.

The pad bonding member 130 ′ may be disposed in the cover pad member 120 ′ close to the seating groove member 121 ′ and the guide groove member 122 ′ as shown in FIG. 16 .

Here, the pad bonding member 130' may be, for example, a double-sided tape or an adhesive.

10: target optical fiber member
20: light receiving member
30: AD converter absent
40: absence of signal generation
50: laser output member
60: reference optical fiber member
70: absence of signal processing
110, 110': target optical fiber member
111, 111': No spiral twist pattern
112, 112': Linear pattern member
120, 120': Cover pad member
121, 121': Seating groove member
122, 122': Guide groove member
130, 130': pad bonding member
210: accommodating case member
220: case cover member

Claims (7)

It is made of optical fiber and is spirally wound on the contact surface for each predetermined section, and the central part is wound along the Taegeuk-pattern silhouette in a wide space having a diameter of more than half of the whole, and the outer part is the central part at the outside of the Taegeuk-pattern silhouette. It is made of a plurality of spirally twisted pattern members 111 and optical fibers that are densely spirally wound in both directions in a narrow area of the remaining thin thickness to form a gentle bending pattern in the entire section and connect between the plurality of spirally twisted pattern members, respectively. a target optical fiber member 110 having a plurality of linear pattern members 112, wherein the plurality of spiral twist pattern members 111 and the plurality of linear pattern members 112 are connected to form a single optical fiber line;
As a cover pad member 120 made of an elastic material that covers the outer surface of the target optical fiber member 110 in a state where the target optical fiber member 110 is accommodated toward the temperature monitoring object, the spiral twist pattern member 111 is A plurality of corresponding one surface is configured to be recessed to a predetermined depth in the vertical direction and the left and right directions, respectively, so that the plurality of spiral twist pattern members 111 constituting the target optical fiber member 110 are individually placed in their recessed area in a grid shape. With respect to the plurality of seating groove members 121 accommodating and the plurality of seating groove members 121 configured in a grid shape along the vertical and left and right directions, one surface is provided to communicate with the seating groove members 121 adjacent to each other. A plurality of guide groove members configured to be recessed to a predetermined depth and individually accommodating the linear pattern members 112 connecting the spiral twist pattern members 111 accommodated in the mutually adjacent seating groove members 121 in their recessed regions one by one a cover pad member 120 having a 122;
The cover pad member 120 disposed along the guide groove member 122 on one surface of the cover pad member 120 facing the temperature monitoring object and in which the target optical fiber member 110 is accommodated is monitored for the temperature. a pad bonding member 130 for bonding to an object so that the accommodated target optical fiber member 110 is in close contact with the temperature monitoring object;
DTS-based overheat monitoring device comprising
The method according to claim 1,
an accommodating case member 210 accommodating the plurality of temperature monitoring objects and guiding the cover pad member 120 in which the target optical fiber member 110 and the pad bonding member 130 are accommodated to be seated on an upper surface thereof;
A case cover member 220 seated on the upper surface of the accommodation case member 210 in a form that covers the cover pad member 120 in a state in which the cover pad member 120 is seated on the upper surface of the accommodation case member 210 . );
DTS-based overheat monitoring device, characterized in that it further comprises a.
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