CN206274416U - For the vibrating sensing optical cable and perimeter security system of circumferential surface - Google Patents
For the vibrating sensing optical cable and perimeter security system of circumferential surface Download PDFInfo
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- CN206274416U CN206274416U CN201621283818.XU CN201621283818U CN206274416U CN 206274416 U CN206274416 U CN 206274416U CN 201621283818 U CN201621283818 U CN 201621283818U CN 206274416 U CN206274416 U CN 206274416U
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- circumferential surface
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- sensing optical
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Abstract
The utility model provides a kind of vibrating sensing optical cable and perimeter security system for circumferential surface.A kind of vibrating sensing optical cable for circumferential surface, including：Multiple cable cores, each cable core in multiple cable cores includes at least one internal layer sheath of optical fiber of at least one optical fiber and cladding, and multiple cable cores are arranged parallel to each other；First steel band, the first steel band be arranged in parallel with multiple cable cores；And outer protective sleeve, outer protective sleeve coats and fixes multiple cable cores and the first steel band；Wherein, the side that the width of the first steel band is in contact parallel to outer protective sleeve with circumferential surface.So that optical cable improves its sensitivity to vibration monitoring while with structural strength higher.
Description
Technical field
The utility model is related to optical fiber and technical field of security and protection, more particularly to a kind of vibrating sensing light for circumferential surface
Cable and perimeter security system.
Background technology
In recent years, the development of optical fiber perimeter alarm systems technology was more and more ripe, and market development scope is increasing.This is
The technology of system is based on interferometric optical fiber sensor principle, by monitoring the ambient vibration or STRESS VARIATION of circumference to light in optical fiber
The influence of signal, analysis disturbance optical information.I.e. when there is external disturbance to act on optical cable, will cause optical fibre in optical cable length and
The change of the optical transmission properties such as refractive index, cause sense light in transmit light phase change such that it is able to this is disturbed into
Row Intelligent Recognition and locating alarming.It is laid in around main facilities and place by by optical fiber perimeter alarm system, Neng Goushi
The purpose of safety precaution is now carried out to circumferences such as main facilities, places.Do not limited by landform in the technology application process, do not received certainly
The influence of right weather, sensitivity are high, and sensing optic cable is passive in itself, low in energy consumption, use cost is low, the distance that can monitor,
Circumference can be monitored in real time.The technical field such as safety precaution and petroleum pipeline monitoring can be applied particularly to.
But the vibrating sensing optical cable in current optical fiber perimeter alarm system generally uses common communications optical cable, either
Transmission cable or sensing optic cable, its outer layer protective sleeve generally use circular configuration, and the surface area of unit length is small, tension resistance
Poor-performing, the sensing optic cable of the vibration caused for inducedstress, pressure, can monitoring range it is limited.And with artificial intelligence
Can technology deep development, it is necessary to constantly lifted optical fiber perimeter alarm system properties, but due to common communications light
Signal vibration frequency range that cable is collected is narrow, poor sensitivity to vibration monitoring, Engineering operation flow are complicated, so seriously
Constrain the performance boost of optical fiber perimeter alarm system.
Therefore, a kind of new vibrating sensing optical cable and perimeter security system for circumferential surface are needed badly.
Utility model content
According to embodiment of the present utility model, there is provided a kind of vibrating sensing optical cable and circumference peace for circumferential surface
Anti- system, can realize strengthen vibrating sensing optical cable structural strength, improve optical cable vibration monitoring sensitivity in one or
Multiple purposes.
According to one side of the present utility model, there is provided a kind of vibrating sensing optical cable for circumferential surface, including：It is many
Individual cable core, each cable core in multiple cable cores includes at least one internal layer sheath of optical fiber of at least one optical fiber and cladding, multiple
Cable core is arranged parallel to each other；First steel band, the first steel band be arranged in parallel with multiple cable cores；And outer protective sleeve, outer protective sleeve
Coat and fix multiple cable cores and the first steel band；Wherein, the width of the first steel band is parallel to outer protective sleeve and circumferential surface
The side being in contact.
According to one side of the present utility model, multiple cable cores are set with being separated.
According to one side of the present utility model, multiple cable cores are arranged in the side of the first steel band through-thickness so that
The side that first steel band is in contact closer to outer protective sleeve compared with multiple cable cores with circumferential surface in a thickness direction.
According to one side of the present utility model, the internal layer sheath of at least one of multiple cable cores cable core is tight set type knot
Structure.
According to one side of the present utility model, the internal layer sheath of at least one of multiple cable cores cable core is loose dwelling knot
Structure.
According to one side of the present utility model, internal layer sheath is made up of aramid fiber material.
According to one side of the present utility model, aramid fiber material draws for Kev, and internal layer sheath draws material to compile by Kev
System is formed.
According to one side of the present utility model, internal layer sheath is made up of metal material.
According to one side of the present utility model, metal material is steel, and internal layer sheath uses steel band structure spiral system
Into.
According to one side of the present utility model, the vibrating sensing optical cable for circumferential surface also includes the second steel band, the
Two steel bands are parallel with the first steel band, and the second steel band is in contact further from outer protective sleeve compared with the first steel band with circumferential surface
Side.
According to one side of the present utility model, multiple cable cores are located at both sides of first steel band along the end of its width
With the second steel band along the end of its width both sides.
According to one side of the present utility model, the scope of the elastic modelling quantity of the Steel material of the first steel band for 100GPa extremely
250GPa。
According to one side of the present utility model, the model of the elastic modelling quantity of the Steel material of the first steel band and/or the second steel band
Enclose for 100GPa to 250GPa.
According to one side of the present utility model, Steel material is manganese steel material.
According to one side of the present utility model, the scope of the thickness of the first steel band is 1 millimeter to 5 millimeters.
According to one side of the present utility model, the scope of the thickness of the first steel band and/or the second steel band is 1 millimeter to 5
Millimeter.
According to one side of the present utility model, the vibrating sensing optical cable for circumferential surface also includes reinforcement, strengthens
Muscle is arranged between the first steel band and the second steel band in a parallel manner.
According to one side of the present utility model, reinforcement is made up of fibre reinforced composites or Steel material.
According to one side of the present utility model, outer protective sleeve is made up of pvc material or polythene material.
According to other side of the present utility model, a kind of perimeter security system is also provided, including：It is above-mentioned for circumference
The vibrating sensing optical cable on surface；Optical processor, is arranged in circumference defence area, and week is connected to for vibrating sensing optical cable to be laid
In boundary defence area；And fiber-optic vibration analyzer, for launching optical signal to vibrating sensing optical cable, and receive from vibrating sensing optical cable
The optical signal of middle return, is analyzed treatment.
To sum up, the vibrating sensing optical cable for circumferential surface of the utility model embodiment, sets by outer protective sleeve
Multiple parallel cable cores are put, and first steel band parallel with the multiple cable core are set so that after optical cable is installed on circumferential surface,
First steel band constitutes similar suspension beam structure, so as to expand the vibration frequency that the first steel band can be responded parallel to circumferential surface
Scope.So as to make vibrating sensing optical cable have during vibration monitoring while the structural strength of vibrating sensing optical cable is improved
Induction sensitivity higher.
Brief description of the drawings
From below in conjunction with the accompanying drawings to this practicality may be better understood in the description of specific embodiment of the present utility model
It is new, wherein：
The detailed description made to non-limiting example referring to the drawings by reading, other spies of the present utility model
Levy, objects and advantages will become more apparent upon, wherein, same or analogous reference represents same or analogous feature.
Fig. 1 is the cross-sectional view of the vibrating sensing optical cable for showing the utility model one embodiment；
Fig. 2 is the cross-sectional view of the vibrating sensing optical cable for showing second embodiment of the utility model；
Fig. 3 is to show the 3rd cross-sectional view of the vibrating sensing optical cable of embodiment of the utility model；
Fig. 4 is to show the 4th cross-sectional view of the vibrating sensing optical cable of embodiment of the utility model；
Fig. 5 is the connection status schematic diagram for showing to be connected on the vibrating sensing optical cable shown in Fig. 1 multiple circumference defence areas.
Specific embodiment
The feature and exemplary embodiment of various aspects of the present utility model is described more fully below.Retouched in detail in following
In stating, it is proposed that many details, to provide to comprehensive understanding of the present utility model.But, for people in the art
It will be apparent that the utility model can be implemented in the case of some details in not needing these details for member.
Description to embodiment below is used for the purpose of being provided by showing example of the present utility model to of the present utility model more preferable
Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not illustrated, to avoid to this reality
Unnecessary obscuring is caused with new；Also, in order to clear, may be exaggerated the thickness of region and layer.Identical is attached in figure
Icon note represents same or similar structure, thus will omit their detailed description.Additionally, feature described below,
Structure or characteristic can be combined in one or more embodiments in any suitable manner.
The noun of locality of middle appearance described below is the direction shown in figure, is not for circumference to of the present utility model
The concrete structure of the vibrating sensing optical cable on surface is defined.In description of the present utility model, in addition it is also necessary to explanation, unless
Another to have clearly regulation and limit, term " installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, it is also possible to
It is to be detachably connected, or is integrally connected；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to
It is indirectly connected to by intermediary.For the ordinary skill in the art, visual concrete condition understands that above-mentioned term exists
Concrete meaning in the utility model.
The vibrating sensing optical cable that the utility model embodiment is provided can be applied in perimeter security system, and it is logical with light
Letter carrier, optical fiber is perceived and the extraneous measured signal of transmission to perceive and communication media, with detect act on optical fiber, its is attached
The vibration signal on thing or periphery etc..So as to pass through vibration at the technical monitoring circumference defence area or STRESS VARIATION to light
The influence of optical signal in fibre, analysis disturbance optical information, further carries out Intelligent Recognition and locating alarming to vibration source.The vibration is passed
Sensing optical cable has measurement sensitivity high, electromagnetism interference, radioresistance, corrosion-resistant, small volume, lightweight, adaptation adverse circumstances etc.
Plurality of advantages, it is adaptable to the technical field such as safety precaution, petroleum pipeline monitoring.
In order to more fully understand the utility model, with reference to Fig. 1 to the 5 pairs of the utility model embodiment for circumference table
The vibrating sensing optical cable in face is described in detail.
Fig. 1 shows cuing open for vibrating sensing optical cable 101 (the hereinafter referred to as optical cable 101) of the utility model one embodiment
Face structural representation, as illustrated, optical cable 101 includes cable core 11, cable core 12, steel band 21 (being referred to as the first steel band in claim)
And outer protective sleeve 31.It is plurality of in be wrapped in for cable core 11, cable core 12, steel band 21 as protection structure by outer protective sleeve 31
Cable core 11,12 and steel band 21 are parallel to each other so that after optical cable 101 is installed at circumferential surface, and steel band 21 is parallel to circumference
Surface.So as to increase the integrally-built intensity of optical cable 101, and lift induction sensitivity of the optical cable 101 to vibration signal.
Optical cable 101 is applied to perimeter security system, and further connection is laid in the Practical Project at circumference defence area, it is necessary to by light
Cable 101 causes job site, and carries out out the disconnected fine operation of cable, and cable core 11 and cable core 12 are respectively connecting into corresponding two circumferences
It is real at optical processor in defence area such that it is able to be monitored by 101 pairs of vibration signals for acting on circumferential surface of optical cable
Safety precaution purpose now is carried out to circumference defence area.
Be encapsulated in inside it for cable core 11, cable core 12, steel band 21 as protection structure by outer protective sleeve 31, can be by polyester
Mixture material is made, for example can using PVC (Polyvinyl chloride, polyvinyl chloride), PE (Polyethylene,
Polyethylene), the material such as nylon or polypropylene is made.In addition, outer protective sleeve 31 can be by way of extrusion forming by cable core
11st, cable core 12 and steel band 21 are coated and fixed, thus outer protective sleeve 31 outer surface profile by its internal cable for setting
The structural form of core 11, cable core 12 and steel band 21 is determined.Certainly, according to application specific demand, outer protective sleeve 31 can be with
Be other materials, for example can also using fire proofing material of the prior art, waterproof material or other there is resistance to compression pull resistance
Material of energy etc. is made.In addition, outer protective sleeve 31 can also be mutually arranged by multiple restrictive coatings being formed, for example, can also include resistance
Water layer, insulating barrier etc..Outer protective sleeve 31 after shaping extends and forms two relative end faces, and wherein end face 31b is monitoring surface,
As optical cable 101 needs the end face fitted with circumferential surface when mounted, and the face relative with monitoring surface is end face 31a.Certainly
End face 31b and end face 31a simultaneously need not be two parallel planes.Due in optical cable 101 is installed on into circumference defence area to week
Coordinate with circumferential surface, it is necessary to pass through end face 31b when the vibration signal on boundary surface is monitored, connected for the ease of installing, can
The plane parallel with circumferential surface is configured to by end face 31b.
Cable core 11 and cable core 12 are abreast set along the Longitudinal extending direction of outer protective sleeve 31, and cable core 11 and cable core 12
Individually arranged in the way of being separated in outer protective sleeve 31, i.e. cable core 11 and cable core 12 is independent structure, makes
Obtain in outer protective sleeve 31, there is enough space lengths between the outer rim of cable core 11 and cable core 12.Therefore, needing to make
Optical cable 101 is applied to perimeter security system, connection is laid in when at circumferential surface, can individually to the cable in optical cable 101
Any one cable core in core 11 and cable core 12 carries out out the disconnected fine operation of cable, and the optical fiber in the cable core is connected into corresponding week
At optical processor in boundary defence area, without influenceing other cable cores around the cable core, so as to reduce the connection in optical cable 101
The disconnected fibre number of times of cable is opened to same cable core in the procedures of establishment, the operating efficiency that connection is laid is improved.Avoid as of the prior art
Cable configuration like that, when being attached laying to optical cable at the construction field (site), performs attended operation and is required for cut-out to optical cable every time
All cable cores in optical cable, after the optical fiber in the cable core of part and corresponding circumference defence area are attached into laying, also by optical cable
In optical fiber in remaining cable core carry out fusing operation, lay demand to meet the connection at follow-up circumference defence area, and then cause light
There is severe attrition in signal during propagating in a fiber, influence the quality of optical cable, and increases the complexity of construction process
And the problem of successive projects maintenance difficulties.
The structure of cable core 11 and cable core 12 can be with identical or be arranged differently than, with cable core 11 as example.Specifically, cable core
11 include at least one optical fiber and the internal layer sheath (not shown) being coated on outside at least one optical fiber (not shown),
Optical fiber in cable core 11 can use single-mode fiber, multimode fibre or other kinds of optical fiber.And optical fiber in cable core 11
Quantity can need to be configured according to practice of construction, such as when needing to be connected to optical cable 101 at two circumference defence areas, can
To be respectively provided with two optical fiber in cable core 11 and cable core 12, two optical fiber are sensor fibre at defence area, wherein one anti-
It is telecommunication optical fiber before area, is laid in respective circumference defence area thus, it is possible to pass through cable core 11 and cable core 12 and connect respectively；And
When needing optical cable 101 to be connected at four circumference defence areas, can be respectively provided with four optical fiber in cable core 11 and cable core 12,
Four optical fiber are sensor fibre at defence area, wherein two is telecommunication optical fiber before corresponding defence area.Certainly working as needs optical cable 101
It is connected to when at four circumference defence areas, four cable cores can also be set, two optical fiber is still set in each cable core.By optical cable
101 modes for being connected to more circumference defence areas can be by that analogy.According to one embodiment of the present utility model, for the ease of
Multiple optical fiber can also respectively be carried out coloring treatment by differentiation, in addition, accordingly, can also be to being coated on different cable core peripheries
Coloring treatment is carried out at outer protective sleeve 31, so as to when needing to carry out out one of them in multiple cable cores the disconnected fine operation of cable,
Identification can exactly be made a distinction.In one embodiment, can also include being internally provided with the cable of cable in multiple cable cores
Core (not shown), such that it is able to the cable core with cable is integrated in optical cable 101, is together directed to the work in circumference defence area
Journey is located in, and further improves the integrated level of the structure of optical cable 101, improves operating efficiency.
According to one embodiment of the present utility model, further, the internal layer sheath of cable core 11 can also be set to tightly
Nested structure or loose tube structure, i.e. cable core 11 and cable core 12 can be all tight tube structure or be all loose tube structure.In order to increase
The integrated level of optical cable 101, can also be set to tight tube structure by one of which, and another one is loose tube structure.For multiple cables
The internal layer sheath of core, can be arranged to tight tube structure or loose tube structure by the internal layer sheath of at least part of cable core therein.It is right
In cable core 11 and the structure of the internal layer sheath of cable core 12, wherein, tight tube structure is optical fiber and FRP (Fiberglass- directly
Reinforced Plastics, fiberglass reinforced plastics) abreast it is embedded in outer protective sleeve 31, or directly by light
Fibre is embedded in the materials such as FRP or PE and is further embedded in outer protective sleeve 31；Loose tube structure is and for optical fiber to be arranged in pine
In sleeve pipe, then Loose tube is further embedded in outer protective sleeve 31.The Loose tube can be by metal material or nonmetallic
Material is made, it is possible to be made of homogenous material or composite.Can be for example made up of aramid fiber material, exemplarily, can
Material is drawn to work out with by Kev；Or the structure of helical steel band is made up of metal material etc., so that optical cable 101 has
Good tension resistance performance.
When the internal layer sheath of cable core 11 uses tight tube structure, the vibration coupling effect of optical cable 101 is good, is mainly used in rule
The ess-strain monitoring of object, it is possible to increase induction sensitivity of the optical cable 101 to vibration signal.And work as the internal layer sheath of cable core 11
During using loose tube structure, its cable core structure is difficult protected from environmental, is mainly used in supervising complicated structure or environment
Survey, so as to improve adaptability of the optical cable 101 to environment.The cable core 11 and cable core 12 of certainly tight set type structure and loose dwelling structure
In optical fiber can serve as sensor fibre or telecommunication optical fiber.It is preferred that using the optical fiber in the cable core of tight set type structure as sensing
Optical fiber so that optical cable 101 is after connection is laid in circumference defence area, it is possible to increase sensing of the optical cable 101 to vibration signal is sensitive
Degree so that the vibration signal monitoring result of perimeter security system is more accurate.It is preferred that the optical fiber in the cable core of loose dwelling structure is made
It is telecommunication optical fiber, the damage caused in itself on telecommunication optical fiber so as to reduce environment in monitoring of environmental influences, it is ensured that communication
Optical fiber, to the normal transmission of optical signal, increases the reliability of perimeter security system in monitoring process.Therefore, cable core 11 and cable core
The structure of 12 internal layer sheaths can reasonably be set according to actual applied environment, be easy to the flexible Application of job site,
Increase the practicality of optical cable 101.
Steel band 21, in flat, its cross section is rectangle.In order that steel band 21 can to improve optical cable 101 integrally-built
Tensile property, and be easy to be wound into disk, steel band 21 is further also an option that elastic modelling quantity Steel material higher, exemplarily,
The range of choice of the elastic modelling quantity of steel band 21 is 100GPa to 250GPa.It is for instance possible to use manganese steel material etc. is made.Additionally,
According to embodiment of the present utility model, in order that steel band 21 has stronger tensile property, and without prejudice to optical cable 101 is wound into
Disk, the setting scope of the thickness of steel band 21 is 1 millimeter to 5 millimeters, preferably 0.5 millimeter to 2 millimeters.Steel band 21 is along outer protective sleeve
31 Longitudinal extending direction is fixed in outer protective sleeve 31, and is abreast set with cable core 11 and cable core 12.Shown in Fig. 1
Embodiment in, steel band 21 formed extension plane parallel to and press close to end face 31b set, i.e. the width of steel band 21
Parallel to the side that outer protective sleeve 31 is in contact with circumferential surface.Cable core 11 and cable core 12 are symmetrically disposed on relative to steel band 21
The both sides of external jacket 31 so that optical cable 101 forms symmetrical structure.For the ease of being carried out to any one cable core in optical cable 101
The disconnected fine operation of cable is opened, cable core 11, cable core 12 and the three of steel band 21 are set with being separated each other in outer protective sleeve 31,
There is certain space length i.e. between the mutual outer rim of three.In addition, steel band 21 is abreast set with end face 31b, and not only
Only refer to that steel band 21 is utterly parallel with end face 31b, steel band 21 is almost parallel with end face 31b, for example, can allow steel band 21
There is appropriate error between the extension plane of formation and the bearing of trend of end face 31b.
By by steel band 21 is parallel to circumferential surface and presses close to end face 31b and sets, and make steel band 21 that there is certain elasticity, make
Obtain after optical cable 101 is installed on into circumferential surface, the steel band 21 is installed at circumferential surface and structure with the installation direction of optical cable 101
Into the state of similar overarm so that steel band 21 can be in response to less vibration frequency, so as to be rung with vibration frequency wider
Answer scope.Therefore, during the vibration signal to circumference defence area is monitored, after having object perturbation action at optical cable 101,
After steel band 21 is disturbed indirectly, it may occur that than stronger vibratory response, so that the optical fiber in optical cable 101 is driven appearance by force
Strong vibration.Therefore, steel band 21 is set parallel to end face 31b by outer protective sleeve 31, enables to optical cable 101 to have wider
Vibration frequency response range, effectively increase induction sensitivity of the optical cable 101 for vibration signal in circumference defence area.Make optical cable
101 produce preferably vibration coupling effect in the case where there is vibration interference, by increasing capacitance it is possible to increase intelligently know in perimeter security system
Vibration frequency investigative range needed for other algorithm, improves the accuracy of its monitoring result, so as to be effectively improved perimeter security system
Wrong report fail to report problem.
In the above-described embodiments, steel band 21 is the manganese steel material with higher elasticity modulus, but the utility model is implemented
Example is not limited to this, and in other examples, steel band 21 can also be made up of other resilient alloy steel materials of tool.Upper
State in embodiment, the shape of cross section of steel band 21 is rectangle, but embodiment not limited to this of the present utility model, other real
In applying example, the shape of cross section of steel band 21 can also be oval, trapezoidal etc., as long as make what steel band 21 ultimately formed to be shaped as
Flat structure.Additionally, in the above-described embodiments, steel band 21 is generally disposed at the center in the width direction of outer protective sleeve 31
At position, and near end face 31b, but embodiment of the present utility model is not limited to this, in other examples, steel band 21
Can also be set near the cable core 11 of side or cable core 12 so that optical cable 101 is not symmetrical structure.In one embodiment,
Steel band 21 can also be without end face 31b settings, and be arranged at the middle position of the through-thickness of outer protective sleeve 31 or lean on
Proximal end face 31b is set.It is to be noted, however, that steel band 21 and cable core 11 and cable core 12 need to keep appropriate space away from
From in order to carry out out the disconnected fine operation of cable to any one cable core therein.After steel band 21 converts set location and shape, still
The state of similar overarm can be constituted when being applied in perimeter security system, so steel band 21 can equally play increase optical cable
101 structural strength and improve effect of the optical cable 101 to the induction sensitivity of vibration monitoring.
Refer to Fig. 2, Fig. 2 shows (the hereinafter referred to as optical cable of vibrating sensing optical cable 102 of the utility model second embodiment
102) structural representation, in this embodiment, the structure of the optical cable 101 in optical cable 102 and above-described embodiment and work are former
Reason is similar.Difference is that the optical cable 102 in the present embodiment includes two steel bands, respectively steel band 21 and steel band 22.Such as
Shown in figure, steel band 21 and steel band 22 are all abreast arranged in outer protective sleeve 32 with end face 32b, wherein, steel band 21 is equally close to
End face 32b sides are set, and steel band 22 is set relative to steel band 21 near end face 32a sides.Cable core 11 and cable core 12 are with symmetrical
Mode be arranged at steel band 21 and steel band 22 both sides in the width direction, optical cable 102 is still symmetrical structure.By near end face
32a and end face 32b are respectively provided with steel band 21 and steel band 22 so that optical cable 102 can simultaneously to circumference defence area outside and circumference
The vibration interference information that defence area inner side occurs is monitored, and increases the vibration monitoring scope of optical cable 102, further improves circumference peace
The degree of accuracy of the vibration monitoring result of anti-system.
Fig. 3 is referred to, Fig. 3 shows the structural representation of the vibrating sensing optical cable 103 of the utility model 3rd embodiment,
In this embodiment, optical cable 103 is similar with the structure and operation principle of the optical cable 102 in above-described embodiment.Difference exists
In, the optical cable 103 in the present embodiment has multilayer cable core structure, as illustrated, optical cable 103 includes four cable cores, respectively
Cable core 11, cable core 12, cable core 13, cable core 14, also include reinforcement 23 in optical cable 103.Steel band 21 and steel band 22 are equally leaned on respectively
The end face 33a and end face 33b of dipped beam cable 103 are set with outer protective sleeve 33, and cable core 11 and cable core 12 are respectively symmetrically and are arranged at steel
With 21 both sides in the width direction, and cable core 13 and cable core 14 are respectively symmetrically and are arranged at the both sides in the width direction of steel band 22, make
The cable core 11 and cable core 13 and cable core 12 and cable core 14 of both sides are stacked in steel band 21 and steel band 22 in the width direction respectively
Both sides.Optical cable 103 in this embodiment is still symmetrical structure, and in order to further increase the layer structure of optical cable 103
Structural strength, is provided with reinforcement 23, i.e. reinforcement 23 and is arranged at the steel of steel band 21 in parallel in the center of optical cable 103
Between band 22.Exemplarily, the reinforcement 23 can be by FRP (Fiber Reinforced Polymer/Plastic, fiber
Enhancing composite) banding that is made or filament, or the steel wire being made up of Steel material, certainly can also be by other energy
Banding or filament that the material of the structural strength and tensile property that enough increase optical cable 103 is made.Match somebody with somebody by by optical cable 103
It is set to the optical cable of multilayer cable core structure so that an optical cable 103 can simultaneously be connected and be laid in multiple circumference defence areas, so that
Simplify the structure of perimeter security system.
Fig. 4 is referred to, Fig. 4 shows the structural representation of optical cable 104 of the utility model 3rd embodiment, in the embodiment
In, optical cable 104 is similar with the structure and operation principle of the optical cable 101 in above-described embodiment.Difference is, the present embodiment
In optical cable 104 include more cable cores, respectively (wherein, n is the nature more than 2 for cable core 11, cable core 12 ... cable core 1n
Number).As illustrated, in optical cable 104, multiple cable cores 11 to 1n are around steel band 21 away from end face 34b (i.e. near end face 34a)
Side arrange with being arranged in order, optical cable 104 (i.e. outer protective sleeve 34) is monolithically fabricated flat banded structure, and make steel band
21 compared with multiple cable cores 11 to 1n closer to end face 34b.Exemplarily, in order to simplify the structure of optical cable 104, multiple cable cores 11
Can be arranged in an evenly spaced manner to 1n.In addition, as needed, in optical cable 104, can equally set similar above-mentioned reality
The reinforcement 23 in optical cable 103 in example is applied, and reinforcement 23 is arranged at multiple cable cores 11 between 1n and steel band 21.By enclosing
Multiple cable cores 11 to 1n are set around steel band 21, while realizing simplifying the structure of optical cable 104, enable optical cable 104 and multiple
Circumference defence area is attached, so as to simplify the structure of perimeter security system.
According to one embodiment of the present utility model, a kind of perimeter security system is additionally provided, including it is above-mentioned for week
The vibrating sensing optical cable on boundary surface, optical processor and fiber-optic vibration analyzer etc..By fiber-optic vibration analyzer to vibration
Sensing optic cable launches optical signal, makes to form pulsed light letter in connecting the optical cable being laid in circumference defence area by optical processor
Number.The pulsed optical signals for propagating to vibrating sensing optical cable end are back in fiber-optic vibration analyzer, then by fiber-optic vibration point
Whether analyzer is analyzed treatment to the pulsed optical signals for returning, so as to occur the vibration letter of intrusion model at detection perimeter defence area
Number, realize the safety precaution purpose in circumference defence area.Due to perimeter security system have in above-described embodiment for circumferential surface
Vibrating sensing optical cable, so have with vibrating sensing optical cable identical advantage, therefore be not repeated here.
Fig. 5 is referred to, Fig. 5 shows and shows the connection status that the optical cable 101 shown in Fig. 1 is connected to two circumference defence areas
It is intended to.As illustrated, wherein, the (not shown) of optical cable 101 monitors surface (i.e. end face 31b) as reference for installation with it, and direction is tested
Thing (direction that i.e. observer is faced) is tightly pasted at the circumferential surface in circumference defence area 201 and circumference defence area 202 and installs, and
Optical cable 101 is fixed at circumferential surface using fastener.In order to optical cable 101 is better described in circumference defence area 201 and week
Connected mode at boundary defence area 202, schematically show only the cable core 11 and cable core 12 in optical cable 101 in figure, eliminate
The other structures of optical cable 101, wherein, cable core 11 is laid in circumference defence area 201 for connection, and cable core 12 is laid in week for connection
Boundary defence area 202.And specific connection distribution method for optical cable 101 at circumference defence area 201 and circumference defence area 202 and right
The monitoring method (for example connecing fine mode etc.) of vibration signal, can be according to optical cable in the prior art and the connection side of optical instrument
Formula, and operation treatment is carried out using the specific method that perimeter security system carries out vibration monitoring, only optical cable 101 is distinguished herein
The laying mode that is substantially connected with circumference defence area 201 and circumference defence area 202 is illustrated.
First, cable core 11 and cable core 12 are connected with the fiber-optic vibration analyzer 300 of Surveillance center respectively, and by optical cable 101
Cause first at circumference defence area 201.
Secondly, in the original position in circumference defence area 201, the disconnected fine operation of cable is carried out out to cable core 11, by cable core 11 with
In the front-end optical processor 201a of the corresponding original position of intelligent acess circumference defence area 201 in circumference defence area 201, and will be from front end
In the final-optics processor 201b of the terminal position of intelligent acess circumference defence area 201 drawn in optical processor 201a.From light
Fine vibration analyzer 300 introduces the cable core 11 of front-end optical processor 201a as communications optical cable, for communicating optical signals；And from
Front-end optical processor 201a introduces the cable core 11 of final-optics processor 201b then as sensing optic cable, for circumference defence area
201 carry out vibration monitoring.
Finally, in the original position in circumference defence area 202, the disconnected fine operation of cable is carried out out to cable core 12, by cable core 12 with
In the front-end optical processor 202a of the corresponding original position of intelligent acess circumference defence area 202 in circumference defence area 202, and will be from front end
In the final-optics processor 202b of the terminal position of intelligent acess circumference defence area 202 drawn in optical processor 202a.From light
Fine vibration analyzer 300 introduces the cable core 12 of front-end optical processor 202a as communications optical cable, for communicating optical signals；And from
Front-end optical processor 202a introduces the cable core 12 of final-optics processor 202b then as sensing optic cable, for circumference defence area
202 carry out vibration monitoring.
Similarly, when circumference defence area is more, the connection of optical cable 101 lay mode and open the disconnected fine situation of cable with it is above-mentioned
It is identical in embodiment, therefore be not repeated here.Certainly for the situation in more circumference defence areas, can be using the utility model the
The optical cable 104 in optical cable 103 or fourth embodiment in three embodiments is attached laying.
In the above-described embodiments, during optical cable 101 being connected into circumference defence area 201 and circumference defence area 202, for cable
Core 11 and cable core 12 have all only carried out once opening the disconnected fine operation of cable.And if using conventional cable, in the start bit of circumference defence area 201
The place of putting is accomplished by carrying out out the disconnected fine operation of cable, and by the fiber cut of all cable cores, before all optical fiber enter circumference defence area 201
After holding optical processor 201a, the sensor fibre and telecommunication optical fiber of remaining cable core need to be classified again and Fusion Joining behaviour
Make, in this way, needing equally to be operated at circumference defence area 202.So reach when at the terminal position in circumference defence area 202, week
Optical fiber used by boundary defence area 202 be equipped with disconnected fibre weld, in circumference by fine operation of breaking twice in the start bit of circumference defence area 201
The original position of defence area 202 also has disconnected fibre weld, so as to influence the propagation quality of optical signal in whole optical cable, and then influences circumference
The reliability of safety-protection system.And the optical cable 101 of the utility model embodiment is used, by by the multiple cable core phases in optical cable 101
Mutually it is positioned apart from, when laying is attached with multiple circumference defence areas, it is only necessary to which the original position in each circumference defence area is selected
Any one cable core, execution completes connection of the optical cable in the circumference defence area and lays operation by once opening the disconnected fine operation of cable.So as to keep away
Exempt from introduced details of the optical fiber in cable core in front end, loss of signal when optical signal is propagated in optical cable can be reduced.And adopt
With conventional cable, easily occur disconnected fibre phenomenon during engineering project is safeguarded, at the fused fiber splice in each circumference defence area, can drop
The monitoring stability of low perimeter security system.
To sum up, the vibrating sensing optical cable for circumferential surface of the utility model embodiment, by setting steel band, and makes steel
The side that the width of band is in contact parallel to the outer protective sleeve of optical cable with circumferential surface so that optical cable is being laid in circumference
When the circumferential surface in defence area carries out vibration monitoring, steel band constitutes similar suspension beam structure so that steel band has vibration frequency wider
Response range, so that optical cable also improves it during vibration monitoring to vibration while with structural strength higher
The induction sensitivity of signal.And arranged with being separated by by multiple cable cores therein so that it is laid in by optical cable connection
When in circumference defence area, the disconnected fine operation of cable can be individually carried out open to any one cable core in multiple cable cores, it is to avoid in cable core
Same cable core carry out multiple rupturing operation, lay flow so as to simplify optical cable connection in actual applications, and reduce
The loss of signal produced in optical signal communication process in a fiber.
The utility model can be realized in other specific forms, without deviating from its spirit and essential characteristics.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects limited, scope of the present utility model will by appended right
Ask rather than foregoing description defined, also, fall into the range of the implication and equivalent of claim it is whole change so as to all by
It is included among scope of the present utility model.Also, the different technologies feature for occurring in different embodiments can be combined,
To obtain beneficial effect.Those skilled in the art will be understood that simultaneously on the basis of studying accompanying drawing, specification and claims
Realize the embodiment of other changes of disclosed embodiment.
Claims (20)
1. a kind of vibrating sensing optical cable for circumferential surface, including：
Multiple cable cores, each cable core in the multiple cable core includes described at least one optical fiber and cladding at least one optical fiber
Internal layer sheath, the multiple cable core is arranged parallel to each other；
First steel band, first steel band be arranged in parallel with the multiple cable core；And
Outer protective sleeve, the outer protective sleeve is coated and fixes the multiple cable core and first steel band；
Wherein, the side that the width of first steel band is in contact parallel to the outer protective sleeve with the circumferential surface.
2. the vibrating sensing optical cable for circumferential surface according to claim 1, wherein, the multiple cable core is separated
Ground is set.
3. the vibrating sensing optical cable for circumferential surface according to claim 1, wherein, the multiple cable core is arranged in institute
State the side of the first steel band through-thickness so that first steel band is more leaned on compared with the multiple cable core in a thickness direction
The side that the nearly outer protective sleeve is in contact with the circumferential surface.
4. the vibrating sensing optical cable for circumferential surface according to any one of claims 1 to 3, wherein, the multiple cable
The internal layer sheath of at least one of core cable core is tight set type structure.
5. the vibrating sensing optical cable for circumferential surface according to any one of claims 1 to 3, wherein, the multiple cable
The internal layer sheath of at least one of core cable core is loose dwelling structure.
6. the vibrating sensing optical cable for circumferential surface according to any one of claims 1 to 3, wherein, the internal layer shield
Set is made up of aramid fiber material.
7. the vibrating sensing optical cable for circumferential surface according to claim 6, wherein, the aramid fiber material is Kev
Draw, and the internal layer sheath draws material to work out by Kev.
8. the vibrating sensing optical cable for circumferential surface according to any one of claims 1 to 3, wherein, the internal layer shield
Set is made up of metal material.
9. the vibrating sensing optical cable for circumferential surface according to claim 8, wherein, the metal material is steel, and
And the internal layer sheath is made of steel band structure spiral.
10. the vibrating sensing optical cable for circumferential surface according to claim 2, also including the second steel band, described second
Steel band is parallel with first steel band, and second steel band compared with first steel band further from the outer protective sleeve with
The side that the circumferential surface is in contact.
The 11. vibrating sensing optical cables for circumferential surface according to claim 10, wherein, the multiple cable core is located at institute
State the first steel band along the end of its width both sides and second steel band along the end of its width both sides.
The 12. vibrating sensing optical cables for circumferential surface according to claim 1, wherein, the steel of first steel band
The scope of the elastic modelling quantity of material is 100GPa to 250GPa.
The 13. vibrating sensing optical cables for circumferential surface according to claim 10, wherein, first steel band and/or
The scope of the elastic modelling quantity of the Steel material of second steel band is 100GPa to 250GPa.
The 14. vibrating sensing optical cable for circumferential surface according to any one of claim 12 or 13, wherein, the steel
Expect to be manganese steel material.
The 15. vibrating sensing optical cables for circumferential surface according to claim 12, wherein, the thickness of first steel band
Scope be 1 millimeter to 5 millimeters.
The 16. vibrating sensing optical cables for circumferential surface according to claim 13, wherein, first steel band and/or
The scope of the thickness of second steel band is 1 millimeter to 5 millimeters.
The 17. vibrating sensing optical cables for circumferential surface according to claim 11, also including reinforcement, the reinforcement
It is arranged in a parallel manner between first steel band and second steel band.
The 18. vibrating sensing optical cables for circumferential surface according to claim 17, wherein, the reinforcement is increased by fiber
Strong composite or Steel material are made.
The 19. vibrating sensing optical cables for circumferential surface according to claim 1, wherein, the outer protective sleeve is by polychlorostyrene
Vinyl material or polythene material are made.
A kind of 20. perimeter security systems, including：
The vibrating sensing optical cable for circumferential surface as described in any one of claim 1 to 19；
Optical processor, is arranged in circumference defence area, and the circumference defence area is connected to for the vibrating sensing optical cable to be laid
In；And
Fiber-optic vibration analyzer, for launching optical signal to the vibrating sensing optical cable, and receives from the vibrating sensing optical cable
The optical signal of middle return, is analyzed treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621283818.XU CN206274416U (en) | 2016-11-25 | 2016-11-25 | For the vibrating sensing optical cable and perimeter security system of circumferential surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621283818.XU CN206274416U (en) | 2016-11-25 | 2016-11-25 | For the vibrating sensing optical cable and perimeter security system of circumferential surface |
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| CN206274416U true CN206274416U (en) | 2017-06-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408822A (en) * | 2016-11-25 | 2017-02-15 | 同方威视技术股份有限公司 | Vibration sensing optical cable used for perimeter surface and perimeter security system |
| CN112731603A (en) * | 2020-12-23 | 2021-04-30 | 华为技术有限公司 | Optical cable |
-
2016
- 2016-11-25 CN CN201621283818.XU patent/CN206274416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408822A (en) * | 2016-11-25 | 2017-02-15 | 同方威视技术股份有限公司 | Vibration sensing optical cable used for perimeter surface and perimeter security system |
| CN112731603A (en) * | 2020-12-23 | 2021-04-30 | 华为技术有限公司 | Optical cable |
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