CN110824645B - Intelligent optical cable with self-sensing function - Google Patents
Intelligent optical cable with self-sensing function Download PDFInfo
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- CN110824645B CN110824645B CN201911177518.1A CN201911177518A CN110824645B CN 110824645 B CN110824645 B CN 110824645B CN 201911177518 A CN201911177518 A CN 201911177518A CN 110824645 B CN110824645 B CN 110824645B
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- 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
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- 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
- G02B6/4436—Heat resistant
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- 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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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Abstract
The invention provides an intelligent optical cable with a self-sensing function, which belongs to the technical field of optical cables and comprises an optical cable, a sheath arranged on the surface of the optical cable and a wrapping layer arranged on the outer side of the sheath, wherein a monitoring module is arranged between the sheath and the wrapping layer, and the monitoring module comprises a sensor assembly, a microcontroller connected with the sensor assembly, and a power supply and a display connected with the microcontroller. The optical cable is intelligently transformed, the wrapping layer is embedded into intelligent sensors for temperature, humidity, smoke and the like, and specific environmental parameters such as the length of the optical cable, the environmental temperature, the humidity, the smoke concentration and the like can be intelligently displayed and transmitted, so that operation and maintenance personnel can conveniently perform on-site monitoring and remote monitoring, find environmental abnormity in time and eliminate defects in time, and inconvenience caused by manual inspection is solved.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to an intelligent optical cable with a self-perception function.
Background
An optical fiber, referred to as an optical fiber for short, is a light transmission tool that achieves the principle of total reflection transmission of light in a fiber made of glass or plastic. The optical cable is a communication line which is formed by a certain number of optical fibers according to a certain mode to form a cable core, is coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission. The existing optical cable laid in a buried type, an overhead type or a hidden covering object in a city, a suburb or a county or county can be passively found and processed by operation and maintenance personnel after a fault and a core break or a fracture occur, the reasons are often a series of reasons that the temperature of the space where the optical cable is located is too high or too low, the space soil is damaged and the like, and if the optical cable can automatically monitor and sense the environment, the accident rate of the optical cable is greatly reduced. The outer edge of the optical cable is wrapped with a sheath, the performance of the sheath has important influence on the optical cable, and at present, the commonly used sheath is easy to be affected with damp, has poor mechanical performance and short service life and has larger potential safety hazard.
Patent document CN110398807A discloses an optical cable comprising: a first optical fiber, a sheath and a cable breakage simulation component; the sheath is coated on the outer surface of the optical fiber; fiber paste is filled between the first optical fiber and the sheath; the optical cable breakage simulation component comprises a simulation optical cable piece, a temperature and humidity sensor, a pressure sensor and a connecting piece; the simulation optical cable piece comprises a simulation optical cable main body and a pair of sealing heads positioned at two ends of the simulation optical cable main body; the analog optical cable main body comprises a second optical fiber, and an outer cladding layer is sleeved outside the outer surface of the second optical fiber; the simulation optical cable spare both ends have the annular outer fringe of evagination, annular outer fringe and sealing head screw-thread fit, annular outer fringe inboard is installed the silica gel pad head. According to the invention, the optical cable breakage simulation component for simulating the first optical fiber and the sheath thereof is additionally arranged on the optical cable, and the temperature and humidity sensor and the pressure sensor are additionally arranged in the simulation optical cable main body for detecting the tension and the optical performance of the second optical fiber, so that the damage condition of the first optical fiber can be conveniently evaluated on site or on line, but the influence of dust and smoke in optical fiber transmission cannot be monitored, and the optical cable detection is not comprehensive.
Patent document CN108727671A discloses a preparation method of a crack-resistant low-smoke halogen-free optical cable flame-retardant sheath material, which is characterized in that a dried flame retardant and a coupling agent are mixed, the mixture is uniformly stirred, a flame retardant filler, a lubricant and an antioxidant are added after the mixture is uniformly stirred, and finally a base material, carbon black, a compatilizer and an auxiliary agent are added, and the mixture is uniformly stirred to obtain a sheath. The sheath has good cracking resistance, but is easy to damp and has poor waterproof effect.
Disclosure of Invention
In view of this, the invention provides an intelligent optical cable with self-perception function.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an intelligent optical cable with self perception effect, includes the optical cable, sets up the sheath on optical cable surface and setting are in the parcel layer in the sheath outside, set up monitoring module between sheath and the parcel layer, monitoring module include sensor assembly, with the microcontroller that sensor assembly is connected, and with power and display that microcontroller is connected.
Further, the sensor assembly includes a temperature sensor, a humidity sensor, a dust sensor, a smoke sensor, a pressure sensor, and a length sensor.
Further, the sheath is prepared from the following raw materials in parts by weight: 30-38 parts of chlorinated polyethylene rubber, 50-60 parts of diethyl ether, 15-22 parts of ethylene-vinyl acetate copolymer, 6-10 parts of a waterproof agent, 8-12 parts of a flame retardant, 15-22 parts of a filler and 3-5 parts of bentonite.
Further, the waterproof agent is calcium stearate or ammonium zirconium carbonate.
Further, the flame retardant is one or more of antimony trioxide, sodium borate or aluminum oxalate.
Further, the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1:2-4: 0.5-0.8.
Further, the filler is one or more of nano silicon oxide, nano zinc oxide and pottery clay.
Further, the filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1:1.2-2.5: 2-3.
The optical cables are more in types and the classification method is more. The laying mode can be divided into: aerial optical cables, pipeline optical cables, buried optical cables and underwater optical cables. When the optical cable is transported to a construction site, the site environment is severe, particularly when a railway communication optical cable is laid, a crane cannot reach the construction site frequently, at the moment, the optical cable is often assembled and disassembled through manpower, and the outer-layer optical cable is often damaged in the process of disassembling the optical cable, so that the performance of an optical cable sheath is very important. The optical cable is required to have a good waterproof effect whether being arranged at the bottom of water or buried. Those skilled in the art are interested in the wear resistance and corrosion resistance of the sheath, and the waterproof performance of the sheath is rarely studied. For example, patent document CN108641175A discloses a wear-resistant lightweight optical cable sheath material, which is prepared from the following raw materials in parts by weight: 60-70 parts of ethylene-vinyl acetate copolymer, 10-20 parts of PE resin, 10-15 parts of aluminum hydroxide, 5-10 parts of wear-resistant components, 3-5 parts of reinforcing particles, 1-2 parts of polyethylene wax, 0.5-0.8 part of antioxidant and 0.5-0.8 part of anti-aging agent. The optical cable sheath material prepared by the invention has high wear resistance and mechanical property, and simultaneously has flame retardant property, and the optical cable sheath material is wrapped on the outer layer of an optical cable, so that the use safety of the optical cable can be improved, and the service life of the optical cable can be prolonged.
In order to ensure the smooth transmission of optical fiber signals, the optical cable line needs to be maintained regularly, and the purpose is to discover and process defects or potential safety hazards existing in the operation of the communication line in time, so that the safe and stable operation of the optical cable line is ensured. The main method for routine maintenance of optical cable lines is line patrol. Line patrol is a frequent work in daily maintenance of optical cable lines, is an important measure for preventing the lines from being obstructed, and is a main task of maintenance personnel. The line is patrolled on foot, not only needs to spend a lot of time, and work load is big moreover, and is very inconvenient. Patent document CN107783233A discloses an optical cable comprising: a first optical fiber, a sheath and a cable breakage simulation component; the sheath is coated on the outer surface of the optical fiber; fiber paste is filled between the first optical fiber and the sheath; the optical cable breakage simulation component comprises a simulation optical cable piece, a temperature and humidity sensor, a pressure sensor and a connecting piece. This patent can monitor the optical cable, but monitoring range is limited, can only monitor humiture, pressure, can not carry out the dust, and the smog control still needs the manual work to patrol and examine.
The invention has the beneficial effects that: the optical cable is intelligently transformed, the wrapping layer is embedded into intelligent sensors for temperature, humidity, smoke and the like, and specific environmental parameters such as the length of the optical cable, the environmental temperature, the humidity, the smoke concentration and the like can be intelligently displayed and transmitted, so that operation and maintenance personnel can conveniently perform on-site monitoring and remote monitoring, find environmental abnormity in time and eliminate defects in time, and inconvenience caused by manual inspection is solved.
The sheath is prepared by mixing chlorinated polyethylene rubber, diethyl ether, ethylene-vinyl acetate copolymer, a waterproof agent, a flame retardant, a filler and bentonite. The chlorinated polyethylene rubber has excellent weather resistance, ozone resistance, chemical resistance and aging resistance, and has good oil resistance, flame retardance and coloring performance. The ethylene-vinyl acetate copolymer has good flexibility, good elasticity, chemical corrosion resistance and low smoke generation amount during combustion, and the composite chlorinated polyethylene rubber improves the tensile property. The waterproofing agent calcium stearate or ammonium zirconium carbonate can fill the pores in the material, reduce the production of the pores, block or cut off capillary pores, improve the compactness of the material and improve the moisture-proof and waterproof effects. The flame retardant is antimony trioxide, sodium borate and aluminum oxalate, and the flame retardant property of the material is improved. Antimony trioxide can cover and block heat-conduction and heat radiation on the surface of burning solid phase to play fire-retardant effect, sodium borate can be heated and decomposed and absorb the heat of a large amount of combustion areas, make the temperature in combustion areas reduce to burning below the critical temperature and burn and put out by oneself, aluminum oxalate can reduce smoke density and smoke generating speed, do not produce corrosive gas during the burning, can put out gases such as vapor, carbon dioxide, prevent the material burning, the three combines, the synergistic effect, reinforcing flame retardant efficiency. The filler nano silicon oxide and nano zinc oxide are used for filling the inner space, so that the stability and impact resistance of the material are improved, the argil mainly comprises hydromica, kaolinite, montmorillonite, quartz and feldspar, the high-temperature resistance, the corrosion resistance and the flame retardant property are good, the oxygen index of the cable material is reduced, and the smoke generation amount is inhibited. The bentonite has strong hygroscopicity and expansibility, and the waterproof and moistureproof performances of the material are improved.
The sheath prepared by the invention has excellent comprehensive properties: the oxygen index of the material reaches more than 50, and the flame retardant property is good; the elongation at break reaches more than 715 percent, the tensile strength reaches more than 36.2Mpa, and the mechanical property is excellent; through a water permeability resistance test, no water penetration point exists, and good water resistance is shown.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the working principle of the monitoring module of the present invention.
Fig. 2 is a longitudinal cross-sectional view of an intelligent fiber optic cable of the present invention.
Fig. 3 is a transverse cross-sectional view of an intelligent fiber optic cable of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Example 1
Referring to fig. 1-3, the present embodiment provides an intelligent optical cable with a self-sensing function, including an optical cable 4, a sheath 2 disposed on the surface of the optical cable 4, and a wrapping layer 1 disposed on the outer side of the sheath 2, where a monitoring module is disposed between the sheath 1 and the wrapping layer 2, and the monitoring module includes a sensor assembly, a microcontroller connected to the sensor assembly, and a power supply and a display connected to the microcontroller.
The sensor assembly includes a temperature sensor, a humidity sensor, a dust sensor, a smoke sensor, a pressure sensor, and a length sensor.
The probe part of the sensing assembly extends into the sheath, the data line extends out along the exterior of the sheath and is connected with the microcontroller, and the microcontroller is connected with the display through Bluetooth or Wi-Fi to monitor the state of the optical fiber. The power supply adopts a rechargeable button cell.
Example 2
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 30 parts of chlorinated polyethylene rubber, 50 parts of diethyl ether, 15 parts of ethylene-vinyl acetate copolymer, 6 parts of a waterproof agent, 8 parts of a flame retardant, 15 parts of a filler and 3 parts of bentonite.
The waterproof agent is calcium stearate; the flame retardant is antimony trioxide; the filler is nano silicon oxide.
Example 3
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 32 parts of chlorinated polyethylene rubber, 52 parts of diethyl ether, 17 parts of ethylene-vinyl acetate copolymer, 7 parts of a waterproof agent, 9 parts of a flame retardant, 16 parts of a filler and 3.5 parts of bentonite.
The waterproof agent is ammonium zirconium carbonate; the flame retardant is sodium borate; the filler is nano zinc oxide.
Example 4
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 33 parts of chlorinated polyethylene rubber, 54 parts of diethyl ether, 19 parts of ethylene-vinyl acetate copolymer, 8 parts of a waterproof agent, 10 parts of a flame retardant, 17 parts of a filler and 3.5 parts of bentonite.
The waterproof agent is calcium stearate; the flame retardant is aluminum oxalate; the filler is argil.
Example 5
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 35 parts of chlorinated polyethylene rubber, 55 parts of diethyl ether, 20 parts of ethylene-vinyl acetate copolymer, 8.5 parts of waterproof agent, 10.5 parts of flame retardant, 18 parts of filler and 4 parts of bentonite.
The waterproof agent is calcium stearate; the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1:2: 0.5.
The filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1:1.2: 2.
Example 6
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 36 parts of chlorinated polyethylene rubber, 56 parts of diethyl ether, 20 parts of ethylene-vinyl acetate copolymer, 9 parts of a waterproof agent, 11 parts of a flame retardant, 19 parts of a filler and 4 parts of bentonite.
The waterproof agent is calcium stearate; the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1:3: 0.6.
The filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1:2: 2.5.
Example 7
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 37 parts of chlorinated polyethylene rubber, 58 parts of diethyl ether, 21 parts of ethylene-vinyl acetate copolymer, 9 parts of a waterproof agent, 11 parts of a flame retardant, 21 parts of a filler and 4.5 parts of bentonite.
The waterproof agent is calcium stearate or ammonium zirconium carbonate; the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1:3.5: 0.7.
The filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1: 2.5: 2.5.
Example 8
The embodiment provides a sheath, which is prepared from the following raw materials in parts by weight: 38 parts of chlorinated polyethylene rubber, 60 parts of diethyl ether, 22 parts of ethylene-vinyl acetate copolymer, 10 parts of a waterproof agent, 12 parts of a flame retardant, 22 parts of a filler and 5 parts of bentonite.
The waterproof agent is ammonium zirconium carbonate; the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1: 4: 0.8.
The filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1: 2.5: 3.
In examples 2 to 8, the sheath was prepared by the following method: placing chlorinated polyethylene rubber, diethyl ether and ethylene-vinyl acetate copolymer in an internal mixer at 100 ℃, internally mixing for 10min at the rotating speed of 200r/min, then adding a waterproof agent, a flame retardant, a filler and bentonite, continuously internally mixing for 30min, and then extruding and molding.
Examples 6 and 7 use chlorinated polyethylene rubber as the modified chlorinated polyethylene rubber by the following method: adding chlorinated polyethylene rubber and cage-shaped octavinyl silsesquioxane into a high-speed mixer, mixing for 8min at the rotating speed of 400r/min, adding triallyl isocyanurate, continuously mixing for 5min, and placing into an open mill for mixing. Chlorinated polyethylene rubber: cage octavinyl silsesquioxane: the weight ratio of triallyl isocyanurate is 1:0.08: 0.02. The cage octavinyl silsesquioxane has the performances of heat resistance, pressure resistance, flame retardance and the like, and is favorable for improving the flame retardance, the tensile property and the stability of the material.
Comparative example 1
This comparative example provides a jacket that, unlike example 2, is free of filler.
Comparative example 2
This comparative example provides a jacket, and unlike example 2, does not contain a water repellent agent.
Comparative example 3
This comparative example provides a jacket, and unlike example 2, does not contain a flame retardant.
Comparative example 4
This comparative example provides a jacket, which, unlike example 2, does not contain bentonite.
Test method
The results of the sheath tests of examples 2-8 and comparative examples 1-4 are shown in Table 1.
The mechanical property test is carried out according to the GB/T528-2009 standard.
The water permeability resistance test was performed according to the HG/T2582-2008 standard.
The flame retardant performance test was performed according to the method of GB 10707-1989 Standard A.
TABLE 1 results of sheath testing for examples 2-8 and comparative examples 1-4
| Elongation at break% | Tensile strength MPa | Water permeability resistance | Oxygen index | |
| Example 2 | 715 | 36.2 | Point of no water penetration | 50 |
| Example 3 | 717 | 36.5 | Point of no water penetration | 50 |
| Example 4 | 716 | 36.5 | Point of no water penetration | 51 |
| Example 5 | 728 | 37.2 | Point of no water penetration | 51 |
| Example 6 | 737 | 37.8 | Point of no water penetration | 52 |
| Example 7 | 736 | 37.8 | Without water penetrationDot | 52 |
| Example 8 | 725 | 36.9 | Point of no water penetration | 51 |
| Comparative example 1 | 625 | 32 | Point of no water penetration | 49 |
| Comparative example 2 | 713 | 36.1 | Multiple water penetration points | 47 |
| Comparative example 3 | 714 | 36.1 | Point of no water penetration | 40 |
| Comparative example 4 | 711 | 35.8 | Point of no water penetration | 49 |
The performance of the sheaths of examples 2-8 and comparative examples 1-3 of the present invention were tested in conjunction with table 1 and it can be seen that the sheaths of examples 2-8 all exhibited good combinations of properties: the oxygen index of the material reaches more than 50, and the flame retardant property is good; the elongation at break reaches more than 715 percent, the tensile strength reaches more than 36.2Mpa, and the mechanical property is excellent; through a water permeability resistance test, no water penetration point exists, and good water resistance is shown. Comparative example 1 does not contain filler, comparative example 2 does not contain waterproof agent, comparative example 3 does not contain flame retardant, comparative example 4 does not contain bentonite, the comprehensive performance of the material is obviously reduced, and the process and formula suitability of the application is good.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides an intelligent optical cable with self perception effect which characterized in that: the optical cable monitoring device comprises an optical cable, a sheath arranged on the surface of the optical cable and a wrapping layer arranged on the outer side of the sheath, wherein a monitoring module is arranged between the sheath and the wrapping layer, and the monitoring module comprises a sensor assembly, a microcontroller connected with the sensor assembly, and a power supply and a display connected with the microcontroller;
the sheath is prepared from the following raw materials in parts by weight: 30-38 parts of chlorinated polyethylene rubber, 50-60 parts of diethyl ether, 15-22 parts of ethylene-vinyl acetate copolymer, 6-10 parts of a waterproof agent, 8-12 parts of a flame retardant, 15-22 parts of a filler and 3-5 parts of bentonite; the waterproof agent is calcium stearate or ammonium zirconium carbonate; the filler is one or more of nano silicon oxide, nano zinc oxide and pottery clay;
the preparation method of the sheath comprises the following steps: placing chlorinated polyethylene rubber, diethyl ether and ethylene-vinyl acetate copolymer in an internal mixer at 100 ℃, internally mixing for 10min at the rotating speed of 200r/min, then adding a waterproof agent, a flame retardant, a filler and bentonite, continuously internally mixing for 30min, and then extruding and molding;
the chlorinated polyethylene rubber is modified chlorinated polyethylene rubber, and the modification method comprises the following steps: adding chlorinated polyethylene rubber and cage-shaped octavinyl silsesquioxane into a high-speed mixer, mixing at the rotating speed of 400r/min for 8min, adding triallyl isocyanurate, continuously mixing for 5min, and placing in an open mill for mixing; chlorinated polyethylene rubber: cage octavinyl silsesquioxane: the weight ratio of triallyl isocyanurate is 1:0.08: 0.02.
2. An intelligent optical cable with self-perception as claimed in claim 1, wherein: the sensor assembly includes a temperature sensor, a humidity sensor, a dust sensor, a smoke sensor, a pressure sensor, and a length sensor.
3. An intelligent optical cable with self-perception as claimed in claim 2, wherein: the flame retardant is one or more of antimony trioxide, sodium borate or aluminum oxalate.
4. An intelligent optical cable with self-perception according to claim 3, wherein: the flame retardant is a mixture of antimony trioxide, sodium borate and aluminum oxalate, wherein the mass ratio of antimony trioxide: sodium borate: the weight ratio of the aluminum oxalate is 1:2-4: 0.5-0.8.
5. An intelligent optical cable with self-perception according to claim 4, wherein: the filler is a mixture of nano silicon oxide, nano zinc oxide and pottery clay, wherein the weight ratio of nano silicon oxide: nano zinc oxide: the weight ratio of the argil is 1:1.2-2.5: 2-3.
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| CN101597385A (en) * | 2009-07-09 | 2009-12-09 | 华东理工大学 | A kind of preparation method based on the silsesquioxane modified ultra-thin fire-resistant coating polymer matrix |
| CN102313852B (en) * | 2011-08-01 | 2014-08-13 | 武汉理工大学 | Optical-fiber intelligent sensing power cable running state monitoring method and apparatus thereof |
| CN102507042B (en) * | 2011-11-18 | 2013-07-10 | 华中师范大学 | Method for embedding optical fiber sensor in intelligent grid power cable |
| CN105084914A (en) * | 2015-07-09 | 2015-11-25 | 长兴泓矿炉料有限公司 | Fireproof material filler and preparation method therefor |
| US20190271731A1 (en) * | 2016-06-13 | 2019-09-05 | Electrical Grid Monitoring Ltd. | A method and system for dynamic fault detection in an electric grid |
| CN107393645B (en) * | 2017-08-09 | 2023-09-29 | 远东电缆有限公司 | Chip embedded plastic armoured intelligent power cable for intelligent energy and manufacturing method |
| CN110398807B (en) * | 2017-10-20 | 2020-07-03 | 杭州富通通信技术股份有限公司 | Optical cable |
| US10563970B2 (en) * | 2018-03-30 | 2020-02-18 | International Business Machines Corporation | Smart cable enclosure incorporating mechanical strain, measurement, storage, transmission and interpretation |
| CN108806876A (en) * | 2018-04-25 | 2018-11-13 | 江苏东方电缆材料有限公司 | A kind of high-effect cable shield sheath material |
| CN109148028B (en) * | 2018-09-27 | 2024-04-12 | 广西广缆科技集团有限公司 | Intelligent cable |
| CN110041603A (en) * | 2019-05-28 | 2019-07-23 | 国网河南省电力公司唐河县供电公司 | A kind of High-temperature-resandant andant flame-retardant cable material |
| CN110144072A (en) * | 2019-07-03 | 2019-08-20 | 天长市佳烽电气有限公司 | A kind of potent waterproof cable sheath material and preparation method thereof |
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