2129results about "Optical fibre/cable installation" patented technology

The invention provides a pipeline optical cable laying state monitoring method and system based on artificial intelligence, and the method comprises the steps: obtaining an optical cable vibration signal, and generating a vibration feature data set based on the optical cable vibration signal; constructing a mechanical equilibrium equation based on the vibration characteristics of the vibration characteristic data set, and calculating the stress states of the optical cable in different pipeline environments; obtaining the current laying tension, generating a control strategy, and adjusting the laying tension to obtain an updated tension value; constructing an anomaly detection model of the spatial-temporal characteristics to generate an anomaly score, and identifying whether the optical cable is abnormal or not in real time; and generating an updated laying strategy and a construction quality report based on the corrected tension control signal. The problems of abnormal stress, monitoring lag, lack of intelligent optimization and the like in the prior art can be effectively solved, and the safety, stability and construction efficiency of optical cable laying are improved.

The invention belongs to the technical field of optical cable sealing, and particularly discloses an optical cable end sealing structure and a hollow-core optical fiber cable, and the optical cable end sealing structure comprises a sealing seat which is used for sleeving and being connected to the circumferential surface of the optical cable; the sealing ring is used for sleeving and sealing the circumferential surface of the optical cable; the sealing cover is provided with a stepped blind hole, one end, provided with the stepped blind hole, of the sealing cover is used for being in threaded connection with the sealing seat along the axial direction so as to enable the sealing ring to spirally abut against the sealing seat, and the sealing cover, the sealing ring and the optical cable are used for defining a sealing cavity for sealing the end of the optical cable. The stepped blind hole of the sealing cover is used for containing the end face structure of the optical cable in a non-contact mode. The optical cable end sealing structure can stably protect the end part of the optical cable for a long time, and the optical cable end sealing structure is not easy to be punctured and poked off by a reinforcing member which may protrude in the optical cable.

The invention discloses an optical fiber end surface light-driven micro-gripper and a preparation method thereof. The optical fiber end surface light-driven micro-gripper comprises an optical fiber flexible driving structure and a rigid skeleton structure; the optical fiber comprises a core and a cladding; the flexible driving structure comprises metal nanoparticles with light-heat conversion capability and a thermal responsive hydrogel structure, wherein the metal nanoparticles are embedded in the thermal responsive hydrogel structure; the rigid skeleton structure comprises a clamping structure and a supporting structure; when the optically driven micro-gripper is in a water environment below a critical response temperature, the micro-gripper opens when no light is passed through, and the micro-gripper closes after the optical fiber is passed through.

The invention provides a rapid taking and placing clamp and method for an FA optical fiber module and a coupling device, and relates to a clamp which completes rapid and accurate taking and placing of the FA optical fiber module by adopting an adsorption mode and a clamping and positioning mode at the same time, and the clamp is composed of a clamp body, a left clamping piece, a right clamping piece, a butterfly-shaped bidirectional screw rod, a left fixing screw, a right fixing screw and a pagoda air tap. The clamp body is used for connecting and fixing other components, a communicated gas circuit is arranged in the clamp body, adsorption and release of an FA optical fiber module can be realized through the pagoda gas nozzle, the left clamping piece and the right clamping piece are symmetrically arranged on two sides of the clamp body and are respectively fixed through the left fixing screw and the right fixing screw, and the left clamping piece and the right clamping piece are adjusted through the butterfly-shaped bidirectional screw rod. Opening, closing and clamping of the left clamping piece and the right clamping piece can be achieved, and therefore the posture of the FA optical fiber module is corrected. According to the rapid taking and placing clamp, rapid taking and placing of the FA optical fiber module are achieved in an adsorption mode and a clamping mode at the same time, the structure is reasonable, stable and reliable, and the coupling efficiency of the FA optical fiber module can be effectively improved.

The invention discloses a communication cable locking device for communication engineering, and relates to the technical field of communication cable locking, the communication cable locking device comprises a mounting plate, the side wall of one end of the mounting plate is symmetrically and fixedly connected with two supporting blocks, one end of each supporting block is fixedly connected with a fixing ring, and the side wall of each fixing ring is provided with a plurality of through holes; first electric telescopic rods are fixedly connected to the interiors of the corresponding through holes, first clamping rings are fixedly connected to the telescopic ends of the first electric telescopic rods, a plurality of screw holes are formed in the side wall of the mounting plate, and mounting bolts are rotationally connected to the interiors of the corresponding screw holes in a threaded mode. According to the invention, when a plurality of strands of locked cables need to be maintained, the contact surfaces of the plurality of strands of cables are exposed, so that a worker can maintain the cables conveniently, and the situation that other workers need to pull the plurality of strands of cables outwards and then maintain the cables when the cables are maintained is avoided; and the working efficiency and the use effect of the device during cable maintenance are improved.

The utility model relates to the technical field of optical fiber laying, and discloses a robot for laying a rainwater pipe optical fiber, which comprises a robot body, and the robot body comprises a power bin head, a cable bin, a glue bin and a power tail bin; a liftable second unpowered supporting leg is movably mounted at the top of the glue bin; the interior of the cable bin is hollow, a take-up roller used for take-up is rotationally installed in the cable bin, a first unpowered supporting leg is movably arranged at the top of the cable bin, and through modular design, assembling, function adjustment and equipment function completion are facilitated; due to wireless data transmission, the equipment can enter more complex environments; videos are transmitted in real time, and the bonding effect can be observed and stored for future reference; and through connection of the corrugated connecting pipe, adaptability to the pipeline environment complexity degree is guaranteed, cables can be protected, the device can adapt to pipelines with different inner diameters within a certain range, adaptability is high, and the practical effect is good.

The invention discloses an outdoor optical cable convenient to quickly connect, and belongs to the technical field of outdoor optical cables. According to the outdoor optical cable convenient for rapid connection, a second optical cable drives an extrusion rod to enter a circular groove of a first optical cable, the extrusion rod abuts against a circular plate and slides inwards, and at the same time, the extrusion rod drives a limiting rod to slide along an L-shaped limiting groove and slide to the tail end of the L-shaped limiting groove; then a second connector is rotated to drive an extrusion rod and a limiting rod to slightly rotate, then the second connector is loosened, a circular plate can be reversely pushed under the action of a first spring to abut against an extrusion plate to slide towards the outer portion of a circular groove, the limiting rod slides to the other position of an L-shaped limiting groove, and the limiting rod drives the extrusion rod to conduct limiting; thus, the first connector and the second connector are fixed, the effect of quickly connecting the optical cables is achieved, the working efficiency of connection between the optical cables is improved, and the labor intensity of workers is reduced.

The invention discloses an easy-to-tear butterfly-shaped optical cable for preventing an optical fiber from being excessively twisted, relates to the technical field of optical cables, and can effectively solve the problem that the performance of the butterfly-shaped optical cable is affected after the butterfly-shaped optical cable is excessively twisted in the prior art. The embodiment of the invention discloses an easy-to-tear butterfly-shaped optical cable for preventing excessive twisting of an optical fiber, which comprises a butterfly-shaped sheath and an optical fiber unit arranged in the butterfly-shaped sheath, an annular cavity is arranged in the middle of the butterfly-shaped sheath, and a protection assembly is sleeved on the optical fiber unit; the device further comprises a plurality of flexible traction pieces arranged in the annular cavity, one ends of the flexible traction pieces are fixed to the inner circumferential wall of the annular cavity, the other ends of the flexible traction pieces are fixed to the outer circumferential wall of the protection assembly, and the length of the flexible traction pieces in the straightened state is larger than the distance between the two ends of the flexible traction pieces.

An integrated transmission line installation system includes a transmission line conveying system that operates to install a transmission line within a conduit by advancing the transmission line through the conduit. The conduit includes at least a first segment and a second segment. The segments are evaluated to determine a full route including the routes of the first and second segments, and an installation plan is generated based at least in part on the full route. The transmission line conveying system includes two or more transmission line conveying apparatuses, a first that controls the advancement of the transmission line through the first segment, and a second that controls the advancement of the transmission line through the second segment. The transmission line conveying system controls and synchronizes the operation of the transmission line conveying apparatuses according to the installation plan so that the transmission line can be continuously installed through the full length of the conduit in a single pass.

A transmission line installation system includes a transmission line conveying apparatus that operates to install a transmission line within a conduit by advancing the transmission line through the conduit. The transmission line conveying apparatus includes a plurality of components. The components include local controllers. Communication with the local controllers of the components synchronizes operation of the components during the installation of a transmission line.

The invention relates to the technical field of optical cable installation and detection, in particular to an unmanned laying detection device for optical cable installation, which comprises a main machine body, and two side walls of the main machine body are movably provided with electric control turnover type supporting arms. According to the unmanned laying detection device for optical cable installation, the unmanned robot is adopted to lay and detect the optical cable in the pipeline, so that the manual operation difficulty can be greatly reduced; the height of the main machine body can be adjusted and limited according to the size of a pipeline by arranging the electrically-controlled overturning type supporting arms which can be overturned on the two sides, and the pipeline conveying device can adapt to pipelines of different states and specifications and is wider in application range. According to the whole device, optical cables are installed and guided through the bottom assembling frame of the inverted-T-shaped structure with the height adjustable, internal optical fibers can be pulled or guided, and early-stage installation and later-stage detection and maintenance are greatly reduced.

The invention provides an optical fiber monitoring device, an optical fiber laying method and a monitoring method for curing deformation of a super-thick foam sandwich composite material component. The device comprises a flat plate mold, a foam core layer with a chamfer on one side, a plurality of cut prepregs and an optical fiber protection mold. According to the device and the method, the application range of the fiber grating sensor in the curing monitoring field is widened, and the temperature and the strain in the curing process of the super-thick foam sandwich component are monitored in real time by using the optical fiber protection mold and the improved optical fiber laying method for relatively thick composite components such as the super-thick foam sandwich component.

The invention belongs to the technical field of underwater unmanned underwater vehicles, and particularly relates to an underwater micro optical cable autonomous laying device and a UUV. The underwater fine optical cable autonomous laying device is compact and reasonable in structure, light in weight, high in strength and small in working resistance, a neural network PID control algorithm is adopted, in the underwater fine optical cable autonomous laying process, the control module obtains tension detected by the three-axis tension sensor, the rotating speed output by the waterproof motor is adjusted in real time, and the underwater fine optical cable laying speed is adjusted in real time. The tension fluctuation of the micro optical cable in the underwater laying process is controlled within + / -2%, and the loss of the optical cable is reduced to be within 0.5 dB / km. The invention further provides a UUV carrying the underwater micro optical cable autonomous laying device, snorkeling, advancing and retreating and yawing actions are executed underwater through multiple sets of ducted propellers installed on the whole body, a Pixhawk controller and a Raspberry Pi are integrated in an internal electronic cavity, and constant tension control over the micro optical cable can be achieved when the micro optical cable is laid underwater in cooperation with an underwater searchlight and a camera.

The utility model discloses an optical fiber wire stripper with cleaning cotton, which comprises two grips, the left ends of the grips are fixedly connected with plier bodies, the two plier bodies are rotatably connected, the surfaces of the grips are provided with circular through holes, the inner cavities of the circular through holes are fixedly connected with liquid storage pipes, and the liquid storage pipes are connected with the cleaning cotton. And the opposite ends of the two liquid storage pipes are fixedly connected with anti-falling blocks communicating with the liquid storage pipes, the surfaces of the anti-falling blocks are sleeved with rubber sleeves, the ends, away from the liquid storage pipes, of the rubber sleeves are fixedly connected with cleaning cotton blocks, and plugging assemblies are arranged in inner cavities of the liquid storage pipes. According to the optical fiber cleaning device, the anti-falling block and the rubber sleeve are matched for use, so that alcohol in the inner cavity of the liquid storage tube can permeate into the cleaning cotton blocks, then a user places an optical fiber between the two cleaning cotton blocks, and then the two cleaning cotton blocks extrude the optical fiber in opposite directions to wipe the optical fiber; therefore, the purposes of conveniently filling alcohol and conveniently wiping the optical fiber by a user can be achieved.

The invention relates to the technical field of optical cable laying and detection, in particular to a self-driving unit applied to optical cable laying and detection, which comprises a combined main machine body. The self-driving unit applied to optical cable laying and detection adopts a combined structure design, can change the structure according to needs, and is suitable for laying optical cables on a plane and an arc-shaped surface; a first arc-shaped frame and a second arc-shaped frame are arranged in the arc-shaped storage grooves in the two sides of the driving frames correspondingly, the adjacent driving frames are connected through lateral locking bolts, and assembling, disassembling and separating are convenient; the upper surface of the driving frame is provided with the arc-shaped storage groove for placing the optical cable, and the optical cable is fixed and optically detected through the arc-shaped clamping detection arms at the two sides of the arc-shaped storage groove, so that the functionality and the practicability are greatly improved.

The utility model discloses a special maintenance tool for power transmission line optical cable strain insulator string fittings, which comprises two groups of connecting frames, an optical cable clamping fixture and a movable pull rod, the connecting frames are respectively a connecting frame I and a connecting frame II, a clamping groove is arranged in the middle of each connecting frame, the optical cable clamping fixture is clamped at the clamping groove, and the movable pull rod is connected with the optical cable clamping fixture. The optical cable clamping fixture comprises a cable clamping device and a clamping sleeve, the cable clamping device is installed in the clamping groove, and the clamping sleeve is installed outside the clamping groove; the two ends of the first connecting frame and the two ends of the second connecting frame are connected through movable pull rods. According to the utility model, a double-side connection structure, double-side tensioning and two sets of optical cable clamping fixtures are arranged, so that the power transmission line optical cable strain insulator string fitting is safer and more stable during maintenance and replacement; the conical resistance optical cable clamping fixture is arranged, installation is rapid, the clamping sleeve enables the cable clamping device to be more stable in the clamping groove, the clamping ring is arranged in the clamping groove of the cable clamping device, an optical cable is clamped more stably, and the surface of the optical cable cannot be damaged.

The invention discloses an outdoor optical cable that is easy to connect quickly, and belongs to the technical field of outdoor optical cables. The invention discloses an outdoor optical cable that is easy to connect quickly. The outdoor optical cable that is easy to connect quickly drives an extrusion rod into a circular groove of a first optical cable through a second optical cable, and the extrusion rod contacts a circular plate and slides inwards. At the same time, the extrusion rod drives a limiting rod to slide along the L-shaped limiting groove and slides to the end of the L-shaped limiting groove. Subsequently, the second connecting head is rotated to drive the extrusion rod and the limiting rod to rotate slightly, and then the second connecting head is released, so that the circular plate can be pushed in the opposite direction under the action of a first spring to contact the extrusion plate and slide to the outside of the circular groove, so that the limiting rod slides to another position of the L-shaped limiting groove, and the limiting rod drives the extrusion rod to limit, thereby fixing the first connecting head and the second connecting head, thereby achieving the effect of quickly connecting the optical cable, which is helpful to improve the working efficiency of connecting between optical cables and reduce the labor intensity of workers.

A cable (102, 510) has a functional core extending in a longitudinal direction and a sheath (524) surrounding said core such that an outer surface of said sheath forms an outer surface (532) of the cable. The outer sheath is formed around the core by extrusion (722) from a polymer melt. An outer part (726) of the extrusion tooling is maintained at a temperature lower than the melting point of the polymer by such an amount that an irregular texture is continuously imparted to the outer surface (532) of the cable. A miniature fibre optic drop cable made in this way can be delivered more than 250 m through a microduct by pushing alone, without the need for blowing equipment.

A transmission line installation system includes a transmission line conveying apparatus that operates to install a transmission line within a conduit by advancing the transmission line through the conduit. The transmission line conveying apparatus includes a plurality of components. The components include local controllers. Communication with the local controllers of the components synchronizes operation of the components during the installation of a transmission line.

Methods, systems, and apparatuses are provided for detecting events in proximity to one or more transmission lines or cables of a data, power, communications, and / or content data transmission system. Data indicating an event may be received. The data may indicate movement or deflection of a portion of the transmission line or cable. A location of the portion of the transmission line or cable may be determine. The location may be determined based on the received data. A classification of the event may be determined. For example, the classification of the event may be based on the data on the received data and the determined location. For example, the classification of the event may be determined by a machine-learning model. A response may be caused. The response may be associated with the portion of the cable. The response may be based on the classification of the event.

The invention belongs to the technical field of intelligent traffic, and provides a distributed optical fiber road sensor on-site manufacturing and road risk monitoring and early warning method. Comprising the steps of optical fiber unit manufacturing, concave shallow slot cutting, sensor construction, data acquisition, road surface state data conversion, scattered light time domain signal interval division, frequency domain conversion and filtering processing, multi-mode feature extraction and road surface condition recognition. According to the invention, the concave shallow slot is cut at the edge of the road, and the flat ribbon-shaped optical fiber unit is fixed in the shallow slot by using polyurea, so that the multifunctional distributed optical fiber road sensor which is integrated with the road surface, high in sensitivity, small in size, simple to install, convenient and rapid to maintain and repair and low in cost is constructed; through a zero crossing point and a noise threshold value, normal time domain signal interval judgment is optimized, and the effect of subsequent filtering processing is improved; a road surface condition identification data model is constructed through a multi-modal fusion technology, and the identification precision of multiple road surface abnormal conditions and the positioning precision of abnormal events are improved.

The invention relates to the technical field of optical cable traction equipment, in particular to optical cable laying traction equipment. The device comprises a traction machine, a plurality of pipelines and a plurality of supporting units, a plurality of optical cable bodies can be laid at the same time, and the optical cable bodies and the steel cables are separated by arranging the supporting discs and the supporting rings, so that the problem of abrasion caused by mutual friction between the optical cable bodies and the steel cables and between the optical cable bodies and pipelines in the traction process is solved. Besides, as the optical cable bodies and the steel cable are clamped by the supporting disc and the supporting ring, the pulling force of the traction machine is equally distributed to the multiple optical cable bodies in the laying process, compared with the prior art, the traction force borne by the optical cable bodies is smaller, in addition, the structure can only pull the steel cable, and the operation is convenient. The optical cable body is only clamped by the supporting disc and the supporting ring and is not subjected to extra traction force of a traction machine, the problem that the optical cable body is damaged due to too large traction force is solved, the integrity of laid cables is guaranteed, and the laying effect is guaranteed.

A multi-fiber push-in (MPO) connector configured to be assembled in situ after being pushed through a conduit may include a ferrule portion configured to terminate optical fibers of a multi-fiber cable and a subassembly portion. The subassembly portion may be configured to include an adapter portion that may be configured to couple with the ferrule portion, a retention portion that may be configured to couple with the multi-fiber cable, and a biasing portion that may be configured to extend on one or more sides of an optical fiber of the multi-fiber cable and couple the adapter portion with the retention portion. The biasing portion may be configured to apply one or more biasing forces to the adapter portion at one or more sides of the optical fiber to urge the ferrule portion in a forward direction such that the one or more biasing forces are balanced at such one or more sides of the optical fiber.

Herein is described a fixing of unitary construction for securing an article to a surface, comprising; a coupling arrangement (104), for coupling the article to the fixing, wherein the fixing comprises barbs (114) which increase the friction between the fixing and the hole; and an elongate member (106) extending from the coupling arrangement; the elongate member comprising a bend (108) which is located substantially midway along the length of the elongate member, the bend defining a first portion (110) and second portion (112) of the elongate member; wherein the first and second portions are resiliently biased away from each other, and the first portion extends between the coupling arrangement and the bend, and the second portion extends towards the coupling arrangement from the bend, forming a gap suitable for the article, between the second portion and the coupling arrangement; wherein the gap size is adjusted by varying the distance between the first and second portions of the elongate member.

A pulling grip for routing at least one fiber optic cable along a pathway of a fiber optic network is disclosed. The pulling grip includes a foldable body defining an opened position and a closed position. In the opened position, the foldable body is configured to receive a connection interface (ferrule, connector, adapter, etc.) of the fiber optic cable. In the closed position, the foldable body is configured to receive and at least partially enclose the connection interface of the fiber optic cable. The pulling grip further includes a pulling band connected to or connectable to the foldable body and configured to connect to a strength member of the fiber optic cable. A fiber optic cable assembly for routing along a pathway of a fiber optic network, a method of attaching a pulling grip to a fiber optic cable, and a method of routing a fiber optic cable along a pathway of a fiber optic network are also disclosed.

A pull-end attachment structure includes a cable having an optical fiber, a cylindrical dam case and fixed to the cable so as to surround the cable, a cylindrical member to which a pull-hose configured to accommodate an end portion of the optical fiber is attached and which is provided so as to surround an outer circumferential surface of the dam case, and a cylindrical fixing member provided so as to surround the cable and capable of fixing to the cylindrical member, in which an outer diameter of the fixing member is equal to or less than an outer diameter of the cylindrical member, and a contacting surface is formed on an inner circumferential surface of the fixing member, the contacting surface that contacts the dam case and transfers a pulling force to the dam case when the cylindrical member and the fixing member are pulled through the pull-hose.

The invention relates to the technical field of optical fiber wiring, and discloses a method and system for realizing efficient optical fiber wiring planning based on an intelligent path planning algorithm, and the method comprises the steps: constructing a spatial topology model corresponding to a wiring region; performing gridding processing on the spatial topology model to obtain a spatial topology grid, and calculating an optical fiber installation cost between an initial installation node and a subsequent installation node; planning an optical fiber installation line between the initial installation node and the subsequent installation node in the spatial topology grid, and carrying out adaptive modeling on the optical fiber and the spatial topology model in the optical fiber installation line to obtain an optical fiber adaptive virtual model; evaluating the optical fiber interference degree between the optical fibers in the optical fiber adaptive virtual model, calculating the line complexity corresponding to the optical fiber installation line, and calculating the environmental coupling degree corresponding to the optical fibers in the optical fiber installation line; and performing line optimization processing on the optical fiber installation line to obtain an optimized installation line of the optical fiber in the to-be-installed area. The invention mainly aims to solve the problem of low optical fiber wiring efficiency.

Various embodiments of the present disclosure include methods and systems that can be used to grip and translate an optical fiber. A fiber optic positioning and retention system includes a fiber retention mechanism, a fiber alignment block including a first groove extending along a length of the fiber alignment block and at least one aperture passing through the fiber alignment block to the first groove, and at least one chuck positioned within the at least one aperture. The at least one chuck includes a second groove that is aligned with the first groove. The system further includes a vacuum chuck piston coupled to the at least one chuck. A method includes providing the fiber optic positioning and retention system as described above for gripping an optical fiber.

The invention belongs to the field of optical fiber manufacturing, and discloses an optical fiber array packaging auxiliary device which comprises a base, a positioning mechanism and an adjusting mechanism, the positioning mechanism comprises a fixing seat, a positioning block and a pressing plate, the fixing seat is fixedly connected to the base and fixedly connected with a first magnetic block, and the positioning block is fixedly connected with a second magnetic block; the positioning block is provided with two groups of open slots, the two groups of open slots are respectively arranged at two ends of the positioning block, the open slots are used for accommodating optical fibers, the pressing plate is rotatably connected to the fixed seat, and the pressing plate can abut against the end surfaces of the open slots; the adjusting mechanism comprises a clamping assembly and a moving assembly, the clamping assembly comprises a driving part, an elastic part and two clamping plates, the driving part is used for driving the two clamping plates to be away from each other, the elastic part is used for driving the two clamping plates to be close to each other so as to clamp the sealing joint, and the moving assembly is used for driving the clamping assembly to move. According to the optical fiber array packaging auxiliary device, the packaging quality of optical fibers can be improved, and the production efficiency is improved.