WO2007114578A1 - Fiber optic cable for sensing intrusion for use in fiber optic mesh - Google Patents

Fiber optic cable for sensing intrusion for use in fiber optic mesh Download PDF

Info

Publication number
WO2007114578A1
WO2007114578A1 PCT/KR2007/001497 KR2007001497W WO2007114578A1 WO 2007114578 A1 WO2007114578 A1 WO 2007114578A1 KR 2007001497 W KR2007001497 W KR 2007001497W WO 2007114578 A1 WO2007114578 A1 WO 2007114578A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber optic
optic cable
optical fiber
mesh
buffer layer
Prior art date
Application number
PCT/KR2007/001497
Other languages
French (fr)
Inventor
Lee Suk Joe
Original Assignee
Lee Suk Joe
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 Lee Suk Joe filed Critical Lee Suk Joe
Publication of WO2007114578A1 publication Critical patent/WO2007114578A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4469—Security aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables

Definitions

  • the present invention relates to a fiber optic cable, and more particularly, to a single core fiber optic cable for use in a fiber optic mesh for sensing an intruder, wherein the fiber optic cable has a multi-layered structure with a reinforcing material dispersed and embedded in an outer sheath layer.
  • a fiber optic cable is an information transfer medium made of a glass or plastic fiber and is also called an optical fiber cable (OFC).
  • OFC optical fiber cable
  • the fiber optic cable is light and thin, it does not occupy a large space. Further, the fiber optic cable provides a very high transmission speed and a low error rate. Thus, the fiber optic cable is frequently used in a data transmission field requiring high-speed data transmission/reception and high reliability. Moreover, the demand for the fiber optic cable rapidly increases in various fields. Particularly, the fiber optic cable is greatly used for a fiber optic mesh for sensing an intruder as in the present invention.
  • Fig. 1 is a view showing the structure of an example of a conventional single core fiber optic cable.
  • the conventional single core fiber optic cable has a three-layered structure in which a reinforcing material layer 15 is additionally interposed between an outer sheath layer 11 and a central optical fiber buffer layer 13.
  • the outer sheath layer 11 is mostly made of a polyurethane polymeric synthetic resin.
  • the polyurethane polymeric synthetic resin is soft and well stretched in the same manner as rubber.
  • the optical fiber buffer layer 13 is weak. Therefore, the reinforcing material layer 15 is additionally provided to protect the internal weak optical fiber buffer layer 13 against external stimulation such as tension or pressure.
  • aramid yarn is widely used for the reinforcing material layer 15.
  • As the aramid yarn is very strong and hardly stretched like a piano wire and soft like thread, it can function to protect the optical fiber buffer layer 13 against external stimulation such as tension or pressure.
  • the conventional single core fiber optic cable shown in Fig. 1 has been widely used for communication together with a patch cord.
  • the outer sheath layer 11 has a thickness of 3mm
  • the optical fiber buffer layer 13 has a thickness of 0.9mm
  • the reinforcing material has a tensile strength of 60kgf/cm .
  • an optical fiber serving as a light transmission path has a diameterof 0.125mm.
  • the optical fiber 14 is in firm and close contact with an inner surface of the optical fiber buffer layer 13. If the optical fiber buffer layer 13 is pulled from the outside, the internal optical fiber 14 is also stretched. The internal optical fiber 14 is so weak that it may be broken upon application of a tensile force of about 5kgf/cm .
  • the conventional fiber optic cable has drawbacks that make the fiber optic cable inappropriate to be used for a fiber optic mesh for sensing intrusion.
  • drawbacks that make the conventional fiber optic cable inappropriate to be used for a fiber optic mesh for sensing intrusion the structure of a conventional fiber optic mesh will be explained with reference to Fig. 2.
  • FIG. 2 is view showing the structure of an example of a conventional diamond type fiber optic mesh.
  • the conventional diamond type fiber optic mesh two fiber optic cables 22 are mutually fixed by a lattice clamp 21 at a hole lattice point.
  • the size of a hole defined by the fiber optic cables 22 approximates to a chest girth of a man (about 85cm).
  • the present invention is conceived to solve the aforementioned problems, which are caused upon manufacture of a fiber optic mesh using the conventional single core fiber optic cable of Fig. 1, even while employing the same materials as the conventional single core fiber optic cable.
  • An object of the present invention is to provide a fiber optic cable for sensing intrusion for use in a fiber optic mesh, wherein it is possible to sense intrusion not only when an intruder cuts the fiber optic mesh but also when the intruder widens and passes a hole of the fiber optic mesh.
  • a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an aspect of the present invention for achieving the object has a structure in which a reinforcing material is dispersed and embedded on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
  • a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another aspect of the present invention for achieving the object has a structure in which a reinforcing material is dispersed and embedded randomly rather than on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
  • a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to a further aspect of the present invention for achieving the object comprises an optical fiber; an optical fiber buffer layer surrounding the optical fiber; an outer sheath layer that is in close contact with the optical fiber buffer layer to surround the optical fiber buffer layer; and a reinforcing material dispersed and embedded in the outer sheath layer.
  • the optical fiber buffer layer and the reinforcing material may be broken if a tensile force exceeds 10kgf/cm .
  • FIG. 1 is a view showing the structure of an example of a conventional single core fiber optic cable.
  • FIG. 2 is view showing the structure of an example of a conventional diamond type fiber optic mesh.
  • FIG. 3 is a view showing the structure of a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an embodiment of the present invention.
  • FIG. 4 is a view showing the structure of a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another embodiment of the present invention.
  • Fig. 5 is an exploded view of a lattice clamp.
  • Fig. 6 is a view showing an assembled state of the lattice clamp.
  • Rivet 502 Body
  • Fig. 3 is a view showing the structure of a fiber optic cable or a single core fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an embodiment of the present invention.
  • the fiber optic cable for sensing intrusion for use in a fiber optic mesh includes an optical fiber 104, an optical fiber buffer layer 103 surrounding the optical fiber 104, an outer sheath layer 101 that is in close contact with the optical fiber buffer layer 103 while surrounding the optical fiber buffer layer 103, and a reinforcing material 105 dispersed and embedded in the outer sheath layer 101.
  • the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention has a two-layered structure in which the reinforcing material 105 is dispersed and embedded in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103.
  • the fiber optic cable When the fiber optic cable is actually used for manufacturing a fiber optic mesh, the fiber optic cable may have a structure in which the reinforcing material 105 is dispersed and embedded on a concentric circle around the optical fiber buffer layer 103 in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103, as shown in Fig. 3.
  • the fiber optic cable may have a structure in which the reinforcing material 105 is dispersed and embedded randomly rather than on a concentric circle around the optical fiber buffer layer 103 in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103.
  • Fig. 4 is a view showing the structure of such a fiber optic cable or a single core fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another embodiment of the present invention.
  • an outer sheath layer 101 has a thickness of 3mm
  • an optical fiber buffer layer 103 has a thickness of 0.9mm
  • a reinforcing material 105 has a breakage tensile force of about 10kgf/cm
  • an optical fiber 104 serving as a light transmission path has a diameter of 0.125mm.
  • the optical fiber buffer layer 103 and the optical fiber 104 of the fiber optic cable according to the present invention are identical with those of a conventional single core fiber optic cable.
  • the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention has a remarkably increased adhesion force between the outer sheath layer 101 and the reinforcing material 105. If an intruder forcibly widens a hole of a fiber optic mesh manufactured using the fiber optic cable of the present invention, a tensile force applied to fiber optic cables defining four sides of the hole of the fiber optic mesh is transmitted to the reinforcing materials 105 as it is, without causing the outer sheath layers 101 to be pushed away from latch clamps.
  • FIGs. 5 and 6 are views illustrating an example of use of the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention. Specifically, Fig. 5 is an exploded view of a lattice clamp, and Fig. 6 is a view showing an assembled state of the lattice clamp.
  • a tensile force applied to fiber optic cables 402 defining four sides of a hole of a fiber optic mesh is transmitted to reinforcing materials 105 as it is, without pushing away outer sheath layers 101 from latch clamps (see 21 in Fig. 2). If an intruder widens the hole of the fiber optic mesh by continuously increasing the force, all of the outer sheath layers 101, the reinforcing materials 105 and optical fiber buffer layers 103 of the fiber optic cables 402 defining the four sides of the hole of the fiber optic mesh begin to be stretched.
  • the applied force exceeds a breakage tensile force (normally, about 10kgf/cm )
  • the optical fiber buffer layers 103 as well as the reinforcing materials 105 are broken. Accordingly, the intrusion is sensed by the fiber optic cable for sensing intrusion for use in a fiber optic mesh.
  • Reference numerals 501 and 502 designate a rivet of the lattice clamp, and a body of the lattice clamp, respectively.
  • the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention can be widely applied to places where intrusion of an intruder or trespassing of a stranger should be prevented and security should be maintained, or to fiber optic mesh security systems, thereby efficiently sensing such intrusion.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

Disclosed is a fiber optic cable for sensing intrusion for use in a fiber optic mesh. The fiber optic cable of the present invention has a structure in which a reinforcing material is dispersed and embedded on a concentric circle around an optical fiber buffer layer or randomly rather than on the concentric circle in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer. In a case where an intruder intends to widen and pass a hole of a fiber optic mesh manufactured using the fiber optic cable, the fiber optic cable is broken if an applied force exceeds a breakage tensile force, thereby sensing such intrusion.

Description

Description
FIBER OPTIC CABLE FOR SENSING INTRUSION FOR USE IN
FIBER OPTIC MESH
Technical Field
[1] The present invention relates to a fiber optic cable, and more particularly, to a single core fiber optic cable for use in a fiber optic mesh for sensing an intruder, wherein the fiber optic cable has a multi-layered structure with a reinforcing material dispersed and embedded in an outer sheath layer. Background Art
[2] A fiber optic cable is an information transfer medium made of a glass or plastic fiber and is also called an optical fiber cable (OFC). As the fiber optic cable is light and thin, it does not occupy a large space. Further, the fiber optic cable provides a very high transmission speed and a low error rate. Thus, the fiber optic cable is frequently used in a data transmission field requiring high-speed data transmission/reception and high reliability. Moreover, the demand for the fiber optic cable rapidly increases in various fields. Particularly, the fiber optic cable is greatly used for a fiber optic mesh for sensing an intruder as in the present invention.
[3] A conventional single core fiber optic cable will be explained below with reference to Fig. 1.
[4] Fig. 1 is a view showing the structure of an example of a conventional single core fiber optic cable. Referring to Fig. 1, the conventional single core fiber optic cable has a three-layered structure in which a reinforcing material layer 15 is additionally interposed between an outer sheath layer 11 and a central optical fiber buffer layer 13.
[5] The outer sheath layer 11 is mostly made of a polyurethane polymeric synthetic resin. The polyurethane polymeric synthetic resin is soft and well stretched in the same manner as rubber. The optical fiber buffer layer 13 is weak. Therefore, the reinforcing material layer 15 is additionally provided to protect the internal weak optical fiber buffer layer 13 against external stimulation such as tension or pressure.
[6] Actually, aramid yarn is widely used for the reinforcing material layer 15. As the aramid yarn is very strong and hardly stretched like a piano wire and soft like thread, it can function to protect the optical fiber buffer layer 13 against external stimulation such as tension or pressure.
[7] The conventional single core fiber optic cable shown in Fig. 1 has been widely used for communication together with a patch cord. According to general standards of commercially available products, the outer sheath layer 11 has a thickness of 3mm, the optical fiber buffer layer 13 has a thickness of 0.9mm, and the reinforcing material has a tensile strength of 60kgf/cm . In addition, an optical fiber serving as a light transmission path has a diameterof 0.125mm. The optical fiber 14 is in firm and close contact with an inner surface of the optical fiber buffer layer 13. If the optical fiber buffer layer 13 is pulled from the outside, the internal optical fiber 14 is also stretched. The internal optical fiber 14 is so weak that it may be broken upon application of a tensile force of about 5kgf/cm .
[8] However, the conventional fiber optic cable has drawbacks that make the fiber optic cable inappropriate to be used for a fiber optic mesh for sensing intrusion. Before description of such drawbacks that make the conventional fiber optic cable inappropriate to be used for a fiber optic mesh for sensing intrusion, the structure of a conventional fiber optic mesh will be explained with reference to Fig. 2.
[9] Fig. 2 is view showing the structure of an example of a conventional diamond type fiber optic mesh. In the conventional diamond type fiber optic mesh, two fiber optic cables 22 are mutually fixed by a lattice clamp 21 at a hole lattice point. Generally, the size of a hole defined by the fiber optic cables 22 approximates to a chest girth of a man (about 85cm).
[10] If an intruder with a chest girth larger than the size of the hole intends to widen and pass the hole of the fiber optic mesh, the hole should not be widened but the fiber optic cables 22 constructing the fiber optic mesh should be broken, which are essential requirements for sensing the intruder. That is, in a general fiber optic mesh security system, a fiber optic mesh should be broken to successfully sense intrusion of an intruder.
[11] However, in case of the conventional fiber optic mesh manufactured using the single core fiber optic cable of Fig. 1, if an intruder forcibly widens and passes the hole of the fiber optic mesh, the outer sheath layers 11 of the four-side fiber optic cables 22 defining the hole are stretched and the internal reinforcing material layers 15 and the optical fiber buffer layers 13 are pushed away and separated from the lattice clamps 21 so that the hole of the fiber optic mesh is widened over the chest girth of the intruder, even though the fiber optic cables 22 are fixed by the lattice clamps 21. However, even in this case, the fiber optic cables 22 are not broken. Thus, there is a drawback in that the passage of the intruder is not sensed. Disclosure of Invention Technical Problem
[12] Accordingly, the present invention is conceived to solve the aforementioned problems, which are caused upon manufacture of a fiber optic mesh using the conventional single core fiber optic cable of Fig. 1, even while employing the same materials as the conventional single core fiber optic cable. An object of the present invention is to provide a fiber optic cable for sensing intrusion for use in a fiber optic mesh, wherein it is possible to sense intrusion not only when an intruder cuts the fiber optic mesh but also when the intruder widens and passes a hole of the fiber optic mesh. Technical Solution
[13] A fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an aspect of the present invention for achieving the object has a structure in which a reinforcing material is dispersed and embedded on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
[14] A fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another aspect of the present invention for achieving the object has a structure in which a reinforcing material is dispersed and embedded randomly rather than on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
[15] A fiber optic cable for sensing intrusion for use in a fiber optic mesh according to a further aspect of the present invention for achieving the object comprises an optical fiber; an optical fiber buffer layer surrounding the optical fiber; an outer sheath layer that is in close contact with the optical fiber buffer layer to surround the optical fiber buffer layer; and a reinforcing material dispersed and embedded in the outer sheath layer.
[16] Here, the optical fiber buffer layer and the reinforcing material may be broken if a tensile force exceeds 10kgf/cm .
Advantageous Effects
[17] According to the present invention thus constructed, the following advantages can be expected. When an intruder cuts a fiber optic mesh manufactured using the fiber optic cable for sensing intrusion for use in the fiber optic mesh according to the present invention, such intrusion can be sensed. In addition, even when an intruder widens and passes a hole of the fiber optic mesh, the fiber optic cable is broken if a tensile force exceeds a predetermined breakage tensile force, thereby sensing the intrusion. Brief Description of the Drawings
[18] Fig. 1 is a view showing the structure of an example of a conventional single core fiber optic cable.
[19] Fig. 2 is view showing the structure of an example of a conventional diamond type fiber optic mesh.
[20] Fig. 3 is a view showing the structure of a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an embodiment of the present invention.
[21] Fig. 4 is a view showing the structure of a fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another embodiment of the present invention.
[22] Fig. 5 is an exploded view of a lattice clamp.
[23] Fig. 6 is a view showing an assembled state of the lattice clamp.
[24] <Explanation of Reference Numerals for Main Portions in Drawings>
[25] 101: Outer sheath layer 103: Optical fiber buffer layer
[26] 104: Optical fiber 105: Reinforcing material
[27] 401: Lattice clamp 402: Fiber optic cable
[28] 501: Rivet 502: Body
Mode for the Invention
[29] Fig. 3 is a view showing the structure of a fiber optic cable or a single core fiber optic cable for sensing intrusion for use in a fiber optic mesh according to an embodiment of the present invention. Referring to Fig. 3, the fiber optic cable for sensing intrusion for use in a fiber optic mesh includes an optical fiber 104, an optical fiber buffer layer 103 surrounding the optical fiber 104, an outer sheath layer 101 that is in close contact with the optical fiber buffer layer 103 while surrounding the optical fiber buffer layer 103, and a reinforcing material 105 dispersed and embedded in the outer sheath layer 101.
[30] The fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention has a two-layered structure in which the reinforcing material 105 is dispersed and embedded in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103.
[31] When the fiber optic cable is actually used for manufacturing a fiber optic mesh, the fiber optic cable may have a structure in which the reinforcing material 105 is dispersed and embedded on a concentric circle around the optical fiber buffer layer 103 in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103, as shown in Fig. 3.
[32] Alternatively, the fiber optic cable may have a structure in which the reinforcing material 105 is dispersed and embedded randomly rather than on a concentric circle around the optical fiber buffer layer 103 in the outer sheath layer 101 that is in direct and close contact with the optical fiber buffer layer 103.
[33] Fig. 4 is a view showing the structure of such a fiber optic cable or a single core fiber optic cable for sensing intrusion for use in a fiber optic mesh according to another embodiment of the present invention.
[34] According to general standards applicable to the fiber optic cable of the present invention, an outer sheath layer 101 has a thickness of 3mm, an optical fiber buffer layer 103 has a thickness of 0.9mm, and a reinforcing material 105 has a breakage tensile force of about 10kgf/cm . In addition, an optical fiber 104 serving as a light transmission path has a diameter of 0.125mm. The optical fiber buffer layer 103 and the optical fiber 104 of the fiber optic cable according to the present invention are identical with those of a conventional single core fiber optic cable.
[35] As compared with a conventional single core fiber optic cable with a three-layered structure, the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention has a remarkably increased adhesion force between the outer sheath layer 101 and the reinforcing material 105. If an intruder forcibly widens a hole of a fiber optic mesh manufactured using the fiber optic cable of the present invention, a tensile force applied to fiber optic cables defining four sides of the hole of the fiber optic mesh is transmitted to the reinforcing materials 105 as it is, without causing the outer sheath layers 101 to be pushed away from latch clamps.
[36] Figs. 5 and 6 are views illustrating an example of use of the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention. Specifically, Fig. 5 is an exploded view of a lattice clamp, and Fig. 6 is a view showing an assembled state of the lattice clamp.
[37] Referring to Figs. 5 and 6 together, a tensile force applied to fiber optic cables 402 defining four sides of a hole of a fiber optic mesh is transmitted to reinforcing materials 105 as it is, without pushing away outer sheath layers 101 from latch clamps (see 21 in Fig. 2). If an intruder widens the hole of the fiber optic mesh by continuously increasing the force, all of the outer sheath layers 101, the reinforcing materials 105 and optical fiber buffer layers 103 of the fiber optic cables 402 defining the four sides of the hole of the fiber optic mesh begin to be stretched. If the applied force exceeds a breakage tensile force (normally, about 10kgf/cm ), the optical fiber buffer layers 103 as well as the reinforcing materials 105 are broken. Accordingly, the intrusion is sensed by the fiber optic cable for sensing intrusion for use in a fiber optic mesh.
[38] Reference numerals 501 and 502 that have not yet been described designate a rivet of the lattice clamp, and a body of the lattice clamp, respectively. Industrial Applicability
[39] As described above, the fiber optic cable for sensing intrusion for use in a fiber optic mesh according to the present invention can be widely applied to places where intrusion of an intruder or trespassing of a stranger should be prevented and security should be maintained, or to fiber optic mesh security systems, thereby efficiently sensing such intrusion.

Claims

Claims
[1] A fiber optic cable for sensing intrusion for use in a fiber optic mesh, the fiber optic cable having a structure in which a reinforcing material is dispersed and embedded on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
[2] A fiber optic cable for sensing intrusion for use in a fiber optic mesh, the fiber optic cable having a structure in which a reinforcing material is dispersed and embedded randomly rather than on a concentric circle around an optical fiber buffer layer in an outer sheath layer that is in direct and close contact with the optical fiber buffer layer.
[3] A fiber optic cable for sensing intrusion for use in a fiber optic mesh, the fiber optic cable comprising: an optical fiber; an optical fiber buffer layer surrounding the optical fiber; an outer sheath layer that is in close contact with the optical fiber buffer layer to surround the optical fiber buffer layer; and a reinforcing material dispersed and embedded in the outer sheath layer.
PCT/KR2007/001497 2006-03-31 2007-03-27 Fiber optic cable for sensing intrusion for use in fiber optic mesh WO2007114578A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2006-0008593 2006-03-31
KR2020060008593U KR200429342Y1 (en) 2006-03-31 2006-03-31 Intrusion Sensing Fber Optic Cable for Fiber Optic Mesh

Publications (1)

Publication Number Publication Date
WO2007114578A1 true WO2007114578A1 (en) 2007-10-11

Family

ID=38563824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/001497 WO2007114578A1 (en) 2006-03-31 2007-03-27 Fiber optic cable for sensing intrusion for use in fiber optic mesh

Country Status (2)

Country Link
KR (1) KR200429342Y1 (en)
WO (1) WO2007114578A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107894640A (en) * 2017-12-28 2018-04-10 江苏亨通光电股份有限公司 One kind limits Fracture Force and makes somebody a mere figurehead leading in cable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101698837B1 (en) 2016-09-05 2017-01-23 화이버트론 주식회사 Intrusion sensing fence system
KR101698835B1 (en) 2016-10-04 2017-01-23 화이버트론 주식회사 Displacement measurement system using optical fiber
KR101698836B1 (en) 2016-10-11 2017-01-23 화이버트론 주식회사 Acceleration measuring system using optical fiber
KR101849049B1 (en) 2017-04-27 2018-04-13 전홍기 Clip for fixing Cables of Optical Cable Net

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727204A (en) * 1980-06-12 1982-02-13 Bayer Ag Optical communication cable
JPS57164702U (en) * 1981-04-10 1982-10-18
JPS5818607A (en) * 1981-07-27 1983-02-03 Furukawa Electric Co Ltd:The Optical communication line
JPS597408U (en) * 1982-07-05 1984-01-18 古河電気工業株式会社 reinforced optical fiber
JPS59134103U (en) * 1983-02-25 1984-09-07 古河電気工業株式会社 reinforced optical fiber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727204A (en) * 1980-06-12 1982-02-13 Bayer Ag Optical communication cable
JPS57164702U (en) * 1981-04-10 1982-10-18
JPS5818607A (en) * 1981-07-27 1983-02-03 Furukawa Electric Co Ltd:The Optical communication line
JPS597408U (en) * 1982-07-05 1984-01-18 古河電気工業株式会社 reinforced optical fiber
JPS59134103U (en) * 1983-02-25 1984-09-07 古河電気工業株式会社 reinforced optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107894640A (en) * 2017-12-28 2018-04-10 江苏亨通光电股份有限公司 One kind limits Fracture Force and makes somebody a mere figurehead leading in cable

Also Published As

Publication number Publication date
KR200429342Y1 (en) 2006-10-20

Similar Documents

Publication Publication Date Title
US5389442A (en) Water blocking strength members
US8224141B2 (en) Multi-jacketed fiber optic cable
KR0139539B1 (en) Communication cable
US20110217010A1 (en) Fiber optic cable assembly
WO2007114578A1 (en) Fiber optic cable for sensing intrusion for use in fiber optic mesh
CA2589872C (en) Protective casing for optical fibers and a fan-out assembly using same
US20160291276A1 (en) Fiber optic ribbon cable
US6993227B2 (en) Fiber optic cable
MX2011004384A (en) Flat drop cable.
JP2014085554A (en) Optical cable
US11175471B2 (en) Predefined cylindrical enclosure for optical waveguide cable
US11960137B2 (en) Intermittently bonded optical fibre ribbon
US20030165310A1 (en) Compact optical cable
EP3705924B1 (en) Optical fiber unit and optical fiber cable
EP1237027A2 (en) Optical fiber cable with central support member having lobe structure
JP2003255205A (en) Compact and lightweight optical cable with pad
US20020003935A1 (en) Optical cable
JP3320807B2 (en) Fiber optic cable
TWI237135B (en) Optical fiber cable
JP2005037641A (en) Optical fiber cable
JP2003329901A (en) Flame-retardant coated optical fiber and coated optical fiber
US11428883B2 (en) Multilayer drop cable with optical fiber
US20060120676A1 (en) Slotted-core ribbon optical cable
US11592633B2 (en) Dual layer buffer tube
JPH1090569A (en) Optical cord type cable

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07745668

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE112(1) EPC, OUR COMMUNICATION OF 02.02.09 (EPO FORM 1205A)

122 Ep: pct application non-entry in european phase

Ref document number: 07745668

Country of ref document: EP

Kind code of ref document: A1