CN216211405U - Cable external damage prevention distributed vibration sensing device and shockproof system - Google Patents
Cable external damage prevention distributed vibration sensing device and shockproof system Download PDFInfo
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- CN216211405U CN216211405U CN202120746378.1U CN202120746378U CN216211405U CN 216211405 U CN216211405 U CN 216211405U CN 202120746378 U CN202120746378 U CN 202120746378U CN 216211405 U CN216211405 U CN 216211405U
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Abstract
The utility model discloses a distributed vibration sensing device and a shockproof system for preventing external force damage of a cable, and particularly relates to the technical field of distributed optical fiber vibration sensing, wherein the technical scheme is as follows: the vibration monitoring alarm system comprises a monitoring terminal, a vibration sensing monitoring alarm host, an optical fiber vibration signal measuring host, a sensing optical fiber, a waterproof box, vibration sensing monitoring alarm software and an active vibration isolation and shock prevention layer, wherein the sensing optical fiber is electrically connected with the optical fiber vibration signal measuring host, the optical fiber vibration signal measuring host is electrically connected with the vibration sensing monitoring alarm host, the vibration sensing monitoring alarm host and the monitoring terminal share data, the active vibration isolation and shock prevention layer is arranged on the outer side of the sensing optical fiber, and the active vibration isolation and shock prevention layer is of a soft frame honeycomb structure, and the vibration monitoring alarm system has the beneficial effects that: the method is beneficial to the real-time measurement of the vibration condition around the transmission line by the power department, and can position the abnormal occurrence place while realizing the early warning of the transmission line against external force damage.
Description
Technical Field
The utility model relates to the technical field of distributed optical fiber vibration sensing, in particular to a distributed vibration sensing device for preventing external force damage of a cable and a shockproof system.
Background
The underground cable is a cable which is usually buried underground compared with a common overhead line, so the underground cable is also called as an underground cable, the cable is made of one or more mutually insulated conductors which are coated with an insulating layer and a protective layer and is used for transmitting power or information from one place to a lead of another place, after the cable enters a modern society, due to the reasons of shortage of urban land, high traffic pressure, urban construction and the like, an underground cable power transmission mode is generally adopted in a large city, and compared with the overhead line, the cable has the advantages of small occupied area, reliable power transmission, strong anti-interference capability and the like, and the construction scheme, the protection measure, the general survey program, the basic requirements of a direct-buried cable and an underground cable fault locator are introduced in detail.
In recent years, underground cables have higher specific gravity in power transmission and distribution systems, but are often damaged by external force in use, and the advantages of safety and reliability of cable power supply are seriously affected, so that the problem that the protection of cable power supply from external force is urgently needed to be solved by the power operation department is solved.
The prior art has the following defects: for damage prevention monitoring of power pipe networks such as underground cable tunnels, the problem of external force damage is difficult to solve through daily line patrol, the specific situation of each cable is difficult to monitor in real time in the prior art, and specific positions are difficult to find when damage occurs.
Therefore, it is necessary to invent a cable external damage prevention distributed vibration sensing apparatus and a vibration prevention system.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a distributed vibration sensing device and a shockproof system for preventing external force damage of a cable.
In order to achieve the above purpose, the utility model provides the following technical scheme: the cable external force damage prevention distributed vibration sensing device comprises a monitoring terminal, a vibration sensing monitoring alarm host, an optical fiber vibration signal measuring host, a sensing optical fiber, a waterproof box, vibration sensing monitoring alarm software and an active vibration isolation and prevention layer, wherein the sensing optical fiber is electrically connected with the optical fiber vibration signal measuring host, the optical fiber vibration signal measuring host is electrically connected with the vibration sensing monitoring alarm host, the vibration sensing monitoring alarm host and the optical fiber vibration signal measuring host are fixedly installed in the waterproof box, the vibration sensing monitoring alarm host shares data with the monitoring terminal through cloud data, the monitoring terminal introduces the vibration sensing monitoring alarm software, and the vibration sensing monitoring alarm software controls the optical fiber vibration signal measuring host and the vibration sensing monitoring alarm host, an active vibration isolation and prevention layer is arranged on the outer side of the sensing optical fiber and is of a soft frame honeycomb structure.
Preferably, a fiber core is fixedly installed in the sensing optical fiber, the left end of the fiber core is connected with the tail end sensing unit, and the right end of the fiber core is connected with the front end sensing unit.
Preferably, the optical fiber vibration signal measurement host is configured to receive signal light of external vibration information, perform photoelectric conversion and signal processing, and then enter a computer for data analysis.
Preferably, the vibration sensing monitoring alarm host is used for real-time monitoring and alarming.
Preferably, the waterproof box top is equipped with the case lid, waterproof box middle part both ends fixed mounting L type fixed plate, L type fixed plate top both ends are equipped with the fixed strip, fixed strip fixed mounting is inside two mounting grooves, the backup pad bottom is located to two mounting grooves, backup pad middle part fixed mounting radiator-grid one, backup pad top both ends are equipped with stopper one.
Preferably, the supporting frame is fixedly installed at the bottom of the waterproof box, the first radiating net is fixedly installed in the middle of the supporting frame, the two ends of the top of the supporting frame are provided with the second limiting blocks, and the radiating holes are formed in the bottom of the waterproof box.
Preferably, the waterproof box further comprises a second box cover, the second box cover is fixedly installed at the top of the waterproof box, the length and the width of the second box cover are larger than those of the waterproof box, waterproof rubber is fixedly adhered to the inner wall of the second box cover, a convex block is arranged at the bottom of the left end of the second box cover, the convex block is fixedly installed in a first installation groove, the first installation groove is formed in the top of the left end of the waterproof box, a clamping block is arranged at the bottom of the right end of the second box cover, the clamping block is clamped inside a clamping groove, the clamping groove is formed in the top of the right end of the waterproof box, and a handle is fixedly installed at the top of the waterproof box.
Preferably, the lower right end of the waterproof box is fixedly provided with a heat dissipation box, the top of the heat dissipation box is hollow, a heat dissipation fan is fixedly arranged in the heat dissipation box, and the bottom of the heat dissipation fan is fixedly provided with a second heat dissipation net.
The utility model has the beneficial effects that: when external vibration or external force acts on the sensing optical fiber, the fiber core in the sensing optical fiber is caused to deform, the length and the refractive index of the fiber core are caused to change, the phase of light waves in the optical cable is caused to change, backward transmission light is continuously generated when light is transmitted in the optical cable, when external vibration and external force extrusion occur, the phase of the backward transmission light is changed, signal light carrying external vibration information is reflected, when the optical fiber vibration signal measurement host is reflected, the weak phase change is converted into light intensity change through processing of an optical system, the light intensity change is subjected to photoelectric conversion and signal processing, the signal light enters a computer for data analysis, the system judges the occurrence of an intrusion event and sends out an alarm according to the analysis result, the vibration distance can be calculated through the light speed according to the arrival time of the backward transmission light, the intrusion place is confirmed, and the vibration condition around the transmission line can be favorably measured by an electric power department in real time, the early warning of the transmission line against external force damage can be realized, and meanwhile, the abnormal occurrence place can be positioned.
Drawings
FIG. 1 is a block diagram of the components provided by the present invention;
FIG. 2 is a structural view of a waterproof case according to embodiment 1 of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2 according to the present invention;
FIG. 4 is a diagram of the change of the sensing fiber when vibration occurs;
FIG. 5 is a diagram of the change of the sensing optical fiber when being squeezed by an external force;
fig. 6 is a structure diagram of a waterproof box according to embodiment 2 of the present invention.
In the figure: the monitoring terminal 10, the vibration sensing monitoring alarm host 20, the optical fiber vibration signal measuring host 30, the sensing optical fiber 40, the front end sensing unit 41, the tail end sensing unit 42, the fiber core 43, the first deformation fiber core 44, the second deformation fiber core 45, the active vibration isolation and prevention layer 46, the waterproof box 50, the box cover 51, the second box cover 511, the waterproof rubber 512, the convex block 513, the mounting groove 514, the handle 515, the fixture block 516, the clamping groove 517, the support plate 52, the first limit block 521, the mounting groove 522, the L-shaped fixing plate 53, the fixing strip 54, the support frame 55, the first heat dissipation net 56, the second limit block 57, the heat dissipation hole 58, the heat dissipation box 581, the heat dissipation fan 582, the second heat dissipation net 583 and the vibration sensing monitoring alarm software 60.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment 1, referring to fig. 1 to 5, the distributed vibration sensing device and the anti-vibration system for preventing external damage to a cable provided by the present invention includes a monitoring terminal 10, a vibration sensing monitoring alarm host 20, an optical fiber vibration signal measuring host 30, a sensing optical fiber 40, a waterproof box 50, vibration sensing monitoring alarm software 60 and an active vibration isolation and anti-vibration layer 46, wherein the sensing optical fiber 40 is electrically connected to the optical fiber vibration signal measuring host 30, the optical fiber vibration signal measuring host 30 is electrically connected to the vibration sensing monitoring alarm host 20, the vibration sensing monitoring alarm host 20 and the optical fiber vibration signal measuring host 30 are fixedly installed inside the waterproof box 50, the vibration sensing monitoring alarm host 20 shares data with the monitoring terminal 10 through cloud data, the vibration sensing monitoring alarm software 60 is introduced into the monitoring terminal 10, the vibration sensing monitoring alarm software 60 controls the optical fiber vibration signal measuring host 30 and the vibration sensing monitoring alarm host 20, an active vibration isolation and prevention layer 46 is arranged on the outer side of the sensing optical fiber 40, the active vibration isolation and prevention layer 46 is of a soft frame honeycomb structure, specifically, cloud data is a general name of technologies and platforms of data integration, data analysis, data integration, data distribution and data early warning based on cloud computing business mode application, the cloud data can share resources with other terminals, and cloud sharing is cloud data sharing, wherein the cloud data sharing mainly comprises two categories of data resources and software resources, meanwhile, the cloud sharing technology is based on the cloud computing technology, the optical fiber vibration signal measurement host 30 is a method for converting mechanical vibration into optical signals and recording and measuring the optical signals after being amplified by an optical system, and the optical fiber vibration signal measurement host has the advantages of high precision, high sensitivity, non-contact, long distance, full-field measurement and the like; after photoelectric conversion and signal processing, the data is analyzed in a computer, the system judges the occurrence of an intrusion event and gives an alarm according to the analysis result, the vibration sensing monitoring alarm host 20 calculates the vibration distance according to the arrival time of backward transmission light and the light speed, confirms the intrusion place, and starts the active vibration isolation and prevention layer 46 outside the cable when the sensor senses that the vibration flat rate is high, and the active vibration isolation and prevention layer 46 can protect the cable and disperse the vibration force;
further, a fiber core 43 is fixedly installed in the sensing optical fiber 40, the left end of the fiber core 43 is connected with the tail end sensing unit 42, and the right end of the fiber core 43 is connected with the front end sensing unit 41, specifically, the fiber core 43 deforms, so that the length and the refractive index of the fiber core 43 change, and the phase of light waves in the optical cable changes;
further, the optical fiber vibration signal measurement host 30 is configured to receive signal light of external vibration information, perform photoelectric conversion and signal processing, and then enter a computer for data analysis, specifically, the optical fiber vibration signal measurement host 30 can receive the signal light and then perform self-processing and analysis;
further, the vibration sensing monitoring alarm host 20 is used for real-time monitoring and alarming, specifically, the vibration sensing monitoring alarm host 20 detects in real time and immediately gives an alarm when an abnormality occurs;
further, a box cover 51 is arranged at the top of the waterproof box 50, L-shaped fixing plates 53 are fixedly installed at two ends of the middle of the waterproof box 50, fixing strips 54 are arranged at two ends of the top of each L-shaped fixing plate 53, each fixing strip 54 is fixedly installed inside a second mounting groove 522, the second mounting groove 522 is arranged at the bottom end of the support plate 52, a first radiating net 56 is fixedly installed in the middle of the support plate 52, and limiting blocks 521 are arranged at two ends of the top of the support plate 52;
further, the supporting frame 55 is fixedly installed at the bottom of the waterproof box 50, the first radiator mesh 56 is fixedly installed in the middle of the supporting frame 55, two limiting blocks 57 are arranged at two ends of the top of the supporting frame 55, the radiating holes 58 are formed in the bottom of the waterproof box 50, specifically, the supporting frame 55 has a supporting effect on the optical fiber vibration signal measurement host 30, and the first radiator mesh 56 can accelerate the heat dissipation of the optical fiber vibration signal measurement host 30.
The using process of the utility model is as follows: when vibration or external force acts on the sensing optical fiber 40, the fiber core 43 in the sensing optical fiber 40 is deformed, the length and the refractive index of the fiber core 43 are changed, the phase of light waves in the optical cable is changed, backward transmission light is continuously generated when light is transmitted in the optical cable, when vibration and external force extrusion occur outside, the phase of the backward transmission light is changed, the signal light carrying external vibration information is reflected, the signal light is processed by an optical system when the optical fiber vibration signal measurement host 30 is reflected, weak phase change is converted into light intensity change, after photoelectric conversion and signal processing, the light enters a computer for data analysis, the system judges the occurrence of an intrusion event and sends out an alarm according to the analysis result, the arrival time of the backward transmission light can calculate the vibration distance through the invasion speed, the place is confirmed, and when the sensor senses high vibration level, the active vibration isolation and prevention layer 46 outside the cable is started, the active vibration isolation and prevention layer 46 can protect the cable and disperse vibration force, and after the monitoring terminal 10 receives the alarm from the vibration sensing monitoring alarm host 20, a person skilled in the art is sent to the monitoring terminal to maintain the monitoring terminal.
Embodiment 2, referring to fig. 6, the distributed vibration sensing device for preventing external force damage of a cable and the anti-vibration system provided by the present invention include a second box cover 511, the second box cover 511 is fixedly installed on the top of a waterproof box 50, the length and width of the second box cover 511 are greater than those of the waterproof box 50, a waterproof rubber 512 is fixedly adhered to the inner wall of the second box cover 511, a protrusion 513 is disposed at the bottom of the left end of the second box cover 511, the protrusion 513 is fixedly installed in a first installation groove 514, the first installation groove 514 is disposed at the top of the left end of the waterproof box 50, a fixture block 516 is disposed at the bottom of the right end of the second box cover 511, the fixture block 516 is clamped in a fixture groove 517, the fixture groove 517 is disposed at the top of the right end of the waterproof box 50, and a handle 515 is fixedly installed at the top of the waterproof box 50 The anti-aging performance is excellent, the oil resistance is superior to that of natural rubber, styrene butadiene rubber and butadiene rubber, the flame retardant performance is strong, the chemical stability is high, the water resistance is good, the chloroprene rubber is widely used, for example, the chloroprene rubber is used for manufacturing transport belts and transmission belts, wrapping materials of wires and cables, oil-resistant rubber pipes, gaskets and chemical corrosion resistant equipment linings, the waterproof performance is good, water in soil is prevented from permeating from the box cover II 511, the convex block 513 is fixedly installed in the installation groove I514, the waterproof effect is further improved, the clamping block 516 is clamped in the clamping groove 517 and also has a certain waterproof effect, the clamping block 516 is in a semi-arc shape, the clamping installation of the box cover II 511 is convenient, the clamping convex block 513 is firstly inserted into the installation groove I514, and then the clamping block 516 is clamped in the clamping groove 517, and the installation method is simple.
Further, waterproof box 50 right lower extreme fixed mounting heat dissipation case 581, heat dissipation case 581 top fretwork, fixed mounting heat dissipation fan 582 in the heat dissipation case 581, heat dissipation fan 582 bottom fixed mounting heat dissipation net two 583, specifically, heat dissipation case 581 top fretwork is convenient for the heat dissipation of waterproof box 50 internal plant, heat dissipation fan 582 can accelerate the equipment heat dissipation, can keep heat dissipation case 581 to be in a dry state simultaneously, prevent that moisture infiltration from waterproof box 50 internal damage equipment, heat dissipation net two 583 is the fine net, can enough dispel the heat, can prevent again that the insect from getting into the damage equipment.
The using process of the utility model is as follows: when vibration or external force acts on the sensing optical fiber 40, the fiber core 43 in the sensing optical fiber 40 is deformed, the length and the refractive index of the fiber core 43 are changed, the phase of light waves in the optical cable is changed, backward transmission light is continuously generated when light is transmitted in the optical cable, when vibration and external force extrusion occur outside, the phase of the backward transmission light is changed, the signal light carrying external vibration information is reflected, the signal light is processed by an optical system when the optical fiber vibration signal measurement host 30 is reflected, weak phase change is converted into light intensity change, after photoelectric conversion and signal processing, the light enters a computer for data analysis, the system judges the occurrence of an intrusion event and sends out an alarm according to the analysis result, the arrival time of the backward transmission light can calculate the vibration distance through the invasion speed, the place is confirmed, and when the sensor senses high vibration level, the active vibration isolation and prevention layer 46 outside the cable is started, the active vibration isolation and prevention layer 46 can protect the cable and disperse vibration force, and after the monitoring terminal 10 receives the alarm from the vibration sensing monitoring alarm host 20, a person skilled in the art is sent to the monitoring terminal to maintain the monitoring terminal.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. External force damage distributed vibration sensing device and shockproof system are prevented to cable, including monitor terminal (10), vibration sensing monitoring alarm host computer (20), optic fibre vibration signal measurement host computer (30), sensing optic fibre (40), waterproof box (50), vibration sensing monitoring alarm software (60) and active vibration isolation layer (46) that takes precautions against earthquakes, its characterized in that: the sensing optical fiber (40) is electrically connected with the optical fiber vibration signal measuring host (30), the optical fiber vibration signal measuring host (30) is electrically connected with the vibration sensing monitoring alarm host (20), the vibration sensing monitoring alarm host (20) and the optical fiber vibration signal measuring host (30) are fixedly arranged in the waterproof box (50), the vibration sensing monitoring alarm host (20) shares data with the monitoring terminal (10) through cloud data, the monitoring terminal (10) introduces the vibration sensing monitoring alarm software (60), the vibration sensing monitoring alarm software (60) controls the optical fiber vibration signal measuring host (30) and the vibration sensing monitoring alarm host (20), an active vibration isolation and prevention layer (46) is arranged on the outer side of the sensing optical fiber (40), and the active vibration isolation and prevention layer (46) is of a soft frame honeycomb structure.
2. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: the sensing optical fiber (40) is internally and fixedly provided with a fiber core (43), the left end of the fiber core (43) is connected with a tail end sensing unit (42), and the right end of the fiber core (43) is connected with a front end sensing unit (41).
3. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: the optical fiber vibration signal measurement host (30) is used for receiving signal light of external vibration information, and after photoelectric conversion and signal processing, the signal light enters a computer for data analysis.
4. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: the vibration sensing monitoring alarm host (20) is used for real-time monitoring and alarming.
5. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: waterproof case (50) top is equipped with case lid (51), waterproof case (50) middle part both ends fixed mounting L type fixed plate (53), L type fixed plate (53) top both ends are equipped with fixed strip (54), fixed strip (54) fixed mounting is inside mounting groove two (522), backup pad (52) bottom is located in mounting groove two (522), backup pad (52) middle part fixed mounting radiator-grid one (56), backup pad (52) top both ends are equipped with stopper one (521).
6. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: the waterproof box is characterized in that a support frame (55) is fixedly installed at the bottom of the waterproof box (50), a first radiating net (56) is fixedly installed in the middle of the support frame (55), two ends of the top of the support frame (55) are provided with limit blocks II (57), and radiating holes (58) are formed in the bottom of the waterproof box (50).
7. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: waterproof case (50) still include case lid two (511), case lid two (511) fixed mounting is at waterproof case (50) top, case lid two (511) length and width are greater than the length and the width of waterproof case (50), fixed waterproof rubber (512) of pasting of case lid two (511) inner wall, case lid two (511) left end bottom is equipped with lug (513), lug (513) fixed mounting is in mounting groove one (514), mounting groove one (514) set up at waterproof case (50) left end top, case lid two (511) right end bottom is equipped with fixture block (516), fixture block (516) card is inside draw-in groove (517), draw-in groove (517) set up at waterproof case (50) right-hand member top, waterproof case (50) top fixed mounting handle (515).
8. The cable external damage prevention distributed vibration sensing apparatus and seismic mitigation system of claim 1, wherein: waterproof box (50) right lower extreme fixed mounting heat dissipation case (581), heat dissipation case (581) top fretwork, fixed mounting heat dissipation fan (582) in heat dissipation case (581), heat dissipation fan (582) bottom fixed mounting radiator mesh two (583).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120746378.1U CN216211405U (en) | 2021-04-13 | 2021-04-13 | Cable external damage prevention distributed vibration sensing device and shockproof system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120746378.1U CN216211405U (en) | 2021-04-13 | 2021-04-13 | Cable external damage prevention distributed vibration sensing device and shockproof system |
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| CN216211405U true CN216211405U (en) | 2022-04-05 |
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| CN202120746378.1U Active CN216211405U (en) | 2021-04-13 | 2021-04-13 | Cable external damage prevention distributed vibration sensing device and shockproof system |
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2021
- 2021-04-13 CN CN202120746378.1U patent/CN216211405U/en active Active
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Effective date of registration: 20231103 Address after: 519000 No. 9, Zhenguo lane, Zijing Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: Zhuhai kangtaiming power transmission and Transformation Engineering Co.,Ltd. Address before: Room 401, 4th floor, building 1, No.9, Zhenguo lane, Zijing Road, Xiangzhou, Zhuhai, Guangdong 519000 Patentee before: GUANGDONG HANXIN TECHNOLOGY Co.,Ltd. |