20 results about "Fibre Channel" patented technology

The utility model belongs to laser cable technical field provides a kind of multi-channel anti-static laser transmission cable pipe, including inner tube, protective layer being wrapped in the outer surface of inner tube and strengthening layer being wrapped in the outer surface of protective layer, inner tube is equipped with the cable channel, optical fiber channel and refrigerant channel through interval along length extension direction, inner tube is polytetrafluoroethylene hose, inner tube is uniformly provided with conductive particle, strengthening layer is metal braid layer. Through integrally forming cable channel, optical fiber channel and refrigerant channel on inner tube, the structure of cable pipe can be more compact, also simplify production process and reduce production cost, protective layer can protect inner tube, improve the durability of cable pipe, strengthening layer can improve the hardness, pressure resistance, bending resistance of cable pipe, so that cable pipe is more durable;Conductive particle uniformly distributed on inner tube can make inner tube have longitudinal conductivity and eliminate static electricity, prevent static electricity accumulation due to refrigerant flow, further improve the service life of cable pipe.

This invention discloses a digital video receiving control system and method based on an airborne hybrid fiber optic link, relating to the field of digital video transmission and processing. The system includes multiple fiber optic channel MAC units, a receive scheduling and management unit, a line image framing unit, a receive buffer, a line image logical ID linked list, a receive buffer management unit, an image restoration unit, and a configuration and status register group. The receive scheduling and management unit receives video data frames from the available fiber optic channels; the line image framing unit reassembles the video line data and generates the first line arrival signal; the receive buffer management unit writes the data into the buffer and updates the linked list; the image restoration unit responds to the first line arrival signal and reads the data in the linked list order to restore the image. This invention solves the problem of reliable reception and image restoration of asynchronous video streams from multiple fiber optic channels, and has the advantages of clear structure, flexible configuration, and high reliability.

The application discloses an intracranial laser balloon dilatation catheter, which comprises a tube body, a balloon body and a laser generating module. The tube body is provided with a fluid channel and an optical fiber channel. The balloon body is located at the outer periphery of the distal end of the tube body and is in communication with the fluid channel. The optical fiber is arranged in the optical fiber channel and has a light-emitting section extending to the position of the balloon body. The elastic member is arranged at the distal end of the inner tube. The diameter of the elastic member gradually increases from the distal end to the proximal end of the elastic member. The laser generating module is connected to the proximal end of the optical fiber. The laser generating module emits laser with a repairing function. The intracranial laser balloon dilatation catheter can avoid intravascular restenosis and ensure the safety and convenience of the operation.

The present application belongs to the technical field of spectral analysis optical instrument, disclose a kind of monochromator of controllable output light beam and programmable control method, to solve the problem of slow response, low precision, poor flexibility of existing monochromator relying on mechanical adjustment.The monochromator includes incident optical unit, spectrometer unit, imaging coupling unit and programmable control output unit arranged in order along the direction of light beam transmission;Incident optical unit is used to input matched polychromatic light beam, spectrometer unit is used to disperse polychromatic light into spatially separated monochromatic light beam, imaging coupling unit is used to focus and couple different wavelength light beam to corresponding light beam channel, and programmable control output unit is used to control the on-off, power and timing of each fiber channel independently.The present application has no mechanical moving parts, and can realize programmable output of monochromatic light with specific wavelength, specific power and specific timing, with fast response speed, high precision and high integration.

This invention belongs to the field of intelligent floor health monitoring technology, and specifically relates to a seamless intelligent floor health monitoring system and method based on distributed optical fiber sensing. The system of this invention includes a field sensing layer, an edge computing gateway connected to the field sensing layer via an optical fiber channel, and a cloud-based intelligent analysis platform connected to the edge computing gateway via 5G or dedicated line communication. The field sensing layer includes an optical fiber demodulation host, a distributed optical fiber sensor network, and a temperature compensation module. The edge computing gateway includes a data preprocessing module, a feature extraction module, an anomaly detection module, a local caching module, and a protocol conversion module. The cloud-based intelligent analysis platform includes a data storage and management module, a model training and update module, an early warning push and response module, and a visualization and reporting module. This invention provides a seamless intelligent floor health monitoring system and method based on distributed optical fiber sensing, achieving full-area coverage, continuous distributed, high-precision, and intelligent long-term health monitoring of the floor.

The utility model discloses an OLT equipment based on optical module standard package adopts standard SFP+ / XFP package shell, contain: SC / LC optical interface connection TO package's 1577nm electric absorption modulation laser, 1490nm distributed feedback laser and integrated TIA's 10G / 1.25G APD detector, laser drive unit contains input buffer and pre -drive circuit, burst receiving unit contains burst across resistance amplifier and limiting amplifier circuit, contain the XGSPON / XGPON / GPON MAC processing and management chip of meeting ITU-T G.9807.1, ITU-T G.987.1 and ITU-T G.984.x protocol specification through high -speed SerDes link connection support XGMII / HSGMII / SGMII interface's ethernet switch chip, and the equipment control unit integrates SFP+ / XFP management interface, and the golden finger interface circuit is directly connected switch chip through circuit board transmission line, and each unit is connected through optical fiber channel, circuit wiring and control bus, realizes OLT function modularization integration, reduces the deployment cost and power consumption.

The present application relates to the field of security, and particularly relates to a method, device and equipment for monitoring external damage based on optical fiber and a storage medium. The method comprises: obtaining alarm data obtained by a distributed optical fiber monitoring device monitoring a sensing optical fiber; comparing the alarm data with a preset vibration frequency database to determine an alarm event of the alarm data and to determine whether the alarm event needs to wake up a camera; if yes, analyzing vibration information of the optical fiber channel to determine an alarm defense area and a preset point corresponding to the vibration information; accessing and controlling the camera corresponding to the alarm defense area through a preset monitoring mapping table until a camera area of the camera contains the preset point. The present application monitors vibration information of the optical fiber channel through the sensing optical fiber, locates a vibration source based on the vibration information, wakes up the corresponding camera to realize joint defense operation of the optical fiber channel, and timely discovers and judges the type of external damage.

This invention relates to an FBG grating demodulator based on a silicon nitride photonic filter chip, belonging to the field of fiber optic sensing technology. The demodulator includes a broadband light source, an optical circulator, an FBG sensor array, a silicon nitride photonic filter chip, a photodetector, an electrical amplifier, an ADC data acquisition card, a digital filter (FPGA), and a computer processing unit. The silicon nitride photonic filter chip integrates a micro-ring resonant cavity, a subwavelength grating dispersion modulation structure, and a thermo-optical tuning electrode, achieving continuous, high-speed, and linear wide-range wavelength coordination through the thermo-optical effect. Furthermore, it employs peak deconvolution and lookup table algorithms for wavelength demodulation. This invention enables multi-channel distributed measurement on a single fiber channel. With no moving mechanical parts, this invention is small in size, has a long lifespan, is resistant to static electricity, offers high detection accuracy, good stability, good vibration resistance, a high tolerance threshold, and low manufacturing cost. It is suitable for various fields such as infrastructure safety monitoring, the energy industry, aerospace, and optical communication, and has broad application prospects.

This disclosure provides embodiments of a current measurement system, method, and apparatus based on an optical fiber current sensor. The system includes: a polarizer converting probe light into linearly polarized light; a phase modulator applying a sine wave to the linearly polarized light to obtain a phase-modulated beam; the phase-modulated beam passing through an optical fiber channel of a polarization-maintaining switch into a corresponding polarization-maintaining transmission fiber, reaching a corresponding sensing fiber ring, forming reflected light, and then returning to the polarizer; a photodetector converting the reflected light into a corresponding electrical signal; an optical switch switching module controlling the polarization-maintaining switch to sequentially select one of N optical fiber channels to be activated; and a current calculation module calculating the modulation depth of the current optical fiber channel in real time based on the electrical signal; and, upon reaching a stable state, calculating the current at the measurement point corresponding to the current optical fiber channel based on the electrical signal. In this way, the current at the measurement point can be accurately and quickly calculated based on the electrical signal, improving the efficiency of cyclic measurement for each channel.

The application discloses a Beidou common view and optical fiber synchronization time synchronization method, system, device and medium, and relates to multiplex communication, and comprises the following steps: determining a first time deviation of a common view master station node, a second time deviation of each common view user node, and a third time deviation of each optical fiber slave station node based on observation data received by each node and a standard time; performing data verification and deviation comparison based on the observation data, the first time deviation and the second time deviation, performing cross verification of a satellite channel and an optical fiber channel based on the first time deviation and the third time deviation until both channels pass the verification; inputting the second time deviation, the third time deviation and a local clock attribute parameter into a preset fusion model to obtain a target time estimate, and correcting the local time corresponding to each node based on the target time estimate to obtain a synchronization time signal. The application can realize high-precision time synchronization of each node.

This invention belongs to the field of optical communication network technology and discloses a rapid detection system for single-source optical layer fiber optic channels in SDH networks. The system includes a light source module, an optical path switching module, a control and scheduling module, and a detection and analysis module. These modules are connected as a whole through a management communication channel. The control and scheduling module, according to a predetermined detection strategy, instructs the light source module to emit test light and simultaneously issues a series of precise port switching commands to the optical switching equipment at relevant sites, thereby weaving a dynamic temporary test optical path across the network and completing the testing of every optical path in the entire network. This invention also discloses a detection method. This invention has the following main beneficial technical effects: significantly improved detection efficiency, greatly improved positioning accuracy, intelligent analysis capabilities, rapid location of multi-point attenuation or interference, automatic network topology discovery and verification, enhanced anti-interference capability, increased automation, and reduced system investment and maintenance costs.

The utility model discloses a kind of stone extraction net basket of built-in optical fiber channel, including handle and multiple net basket filaments, further include guide tube assembly, guide tube assembly includes outer tube and inner tube, outer tube is set in the outside of inner tube, outer tube is connected between inner tube by connecting piece, net basket control channel is equipped between outer tube and inner tube, the first end of net basket filament is stretched out through net basket control channel, the first end of multiple net basket filaments is bent and connected together to form net basket part, control assembly is slidably arranged in handle, the second end of multiple net basket filaments is connected with control assembly, control assembly controls net basket part to switch between the state of being stretched and being gathered, inner tube is equipped with first optical fiber channel, handle is equipped with second optical fiber channel, second optical fiber channel is coaxially communicated with first optical fiber channel, the outlet of first optical fiber channel is located in the center of net basket part, laser optical fiber is stretched out through the channel built-in in stone extraction net basket, without needing to exit stone extraction net basket, save the operation time, reduce the risk in operation.

The application discloses a kind of concrete pile foundation defect detection device and method based on distributed optical fiber, detection device includes: detection sensing unit, including at least one pair of axial optical fiber and at least one helical optical fiber;Stress wave excitation module, for applying transient impact load on pile top, generates one-dimensional stress wave that propagates along pile body axial direction;Data acquisition module: with the detection sensing unit is connected, including distributed optical fiber acoustic wave sensing system, distributed optical fiber acoustic wave sensing system is used to synchronously obtain the dynamic strain time history signal of axial optical fiber and helical optical fiber, obtains stress wave propagation velocity variation by dynamic strain time history signal analysis processing to axial optical fiber, obtains strain gradient distribution by dynamic strain time history signal analysis processing to helical optical fiber;Defect judging module: based on the stress wave propagation velocity variation of the axial optical fiber channel and the strain gradient distribution of the helical optical fiber channel, carries out pile body defect judgment.

The present application relates to the technical field of optical fiber communication and optical fiber link performance monitoring, and specifically provides a monitoring method and system based on a MEMS optical fiber switching matrix, which comprises the following steps: a control management unit completes initial path mapping of a multi-fiber channel and configures an initial scanning frequency; performance parameters are polled and collected, and a real-time dynamic baseline model is constructed based on a sliding window algorithm; real-time parameters are collected at the initial frequency and compared with the baseline, and an abnormal signal is triggered when the deviation exceeds a threshold value; a redundant verification path is switched to for comparative analysis to distinguish between environmental interference and link self-failure; the scanning frequency is adjusted according to the fault type, the frequency of the link fault channel is increased, and the initial frequency of the environmental interference channel is maintained; and a state evaluation report is generated and a warning is issued. The method reduces false positives and false negatives through a dynamic baseline, improves fault positioning accuracy through a redundant path, optimizes resource allocation through dynamic adjustment of the scanning frequency, and comprehensively improves monitoring accuracy, efficiency and operation pertinence.

The application discloses a kind of based on the flexible direct current line differential protection method and system of berilong line mode differential integral current, by obtaining the geometric parameter of direct current line, calculating frequency variable polar domain impedance and admittance matrix, and selecting the line mode wave impedance, resistance and propagation coefficient under specific frequency;Real-time acquisition of the bipolar voltage and current at the two ends of line, after obtaining line mode by polar mode transformation, the line mode current of line reference point is accurately calculated using berilong model;Through band-pass filtering to suppress noise, and through optical fiber channel to realize the synchronization and compensation of two-end data;The sum of the reference point current at both ends is taken to generate the berilong line mode differential current, and then the line mode differential integral current is obtained by integrating the cumulative data window;Finally, the fault is determined by comparing the integral current with the action threshold value.The application solves the problem of single ground fault identification, and is suitable for reliable protection of flexible direct current line in new energy access scenario.

Disclosed is a method for optimizing optical fibre based transmission, in particular increasing span length and / or minimizing energy consumption and cost for an optical fibre based transmission link, and the so optimized fibre based transmission link. Further disclosed is a method for minimizing the energy consumption and / or the cost of an optical fibre based transmission link by doubling the number of fibre channels. Also disclosed is a method for minimizing the energy consumption and / or the cost of a repeaterless optical fibre based transmission link.

This application provides a ureteroscopic robot, relating to the field of medical device technology, comprising: a base; a lifting mechanism fixedly connected to the base for driving the lifting and lowering movement of the ureteroscopic endoscope; a horizontal feeding mechanism connected to the lifting end of the lifting mechanism for driving the horizontal forward and backward movement of the ureteroscopic endoscope; a rotating mechanism connected to the horizontal feeding mechanism, wherein the ureteroscopic endoscope is mounted on the rotating mechanism, and the rotating mechanism drives the ureteroscopic endoscope to rotate; a bending mechanism connected to the rotating mechanism for driving the ureteroscopic endoscope to bend; and a fiber optic delivery mechanism connected to the robot body and positioned close to the ureteroscopic endoscope for delivering optical fibers into the fiber optic channel of the ureteroscopic endoscope. This application achieves precise lifting, forward and backward movement, rotation, and bending of the ureteroscopic endoscope, as well as stable delivery of optical fibers, improving control precision, reducing the difficulty of surgical operations, and enhancing the stability of the overall machine operation, thereby effectively ensuring clinical operational efficiency and reliability.

This invention relates to network communications, explicitly addressing the naming methodology for micro-conduits in fiber-to-the-home (FTTH) networks. FTTH is a high-speed broadband architecture that employs fiber optics to connect residential and commercial buildings, providing greater scalability and reduced installation interruptions using micro-conduits and inflated fiber optic cables. Micro conduits, typically manufactured from high-density polyethylene (HDPE), are small, flexible conduits designed to house and protect fiber optic cables in diverse deployment environments, including urban, suburban, and rural areas. Given the large-scale deployment of micro conduits in FTTH networks, establishing a robust and systematic naming methodology is essential for organized network management, efficient maintenance, and continuous scalability.These approaches ensure that network operators can efficiently identify, track, and manage micro conduits, facilitating simplified installation, troubleshooting, and upgrades in densely populated areas. With this improved methodology, operators can have an efficient name for micro-beam conduits, improving network design, reliability, and operational efficiency, enabling future-proof fiber deployments.

The application relates to the field of laser measurement technology and discloses a multi-channel synchronous length measuring system and method based on laser FMCW technology, which comprises an FMCW measuring host, a tail fiber, a fiber splitter, fiber channels and an optical lens. The FMCW measuring host divides an effective bandwidth into multiple frequency regions by utilizing the optical path length difference set by multiple fiber channels. The fiber splitter distributes a single laser signal to multiple fiber channels. The echo signal is limited in the corresponding frequency region by utilizing different fiber lengths. The FMCW measuring host extracts the up-sweep beat frequency and the down-sweep beat frequency respectively, calculates the motion speed of the length cable to be measured by combining the spatial geometric projection relationship, and calculates the cumulative production length. The application realizes the synchronous monitoring of multiple production lines by a single device through the frequency domain isolation mechanism based on the optical path difference, avoids signal aliasing, and guarantees the signal independence of multi-channel parallel measurement.

The utility model relates to the technical field of urological surgery instrument, a visual urethral dilator, including dilating pipe and control handle, control handle installs on the back end of dilating pipe, dilating pipe has the hollow chamber, is equipped with gas passage, water injection channel, image channel and optical fiber channel in dilating pipe, the outer peripheral wall of dilating pipe is provided with at least one dilating sac body of column shape, is equipped with gas outlet on dilating pipe, and the gas outlet is communicated with dilating sac body, the front end of dilating pipe is equipped with imaging lens, and the back end of control handle is equipped with hand -held display assembly, and imaging lens is connected with hand -held display assembly through the data line in image channel, is equipped with venting interface, water injection interface, image interface and light source signal plug on control handle, venting interface is detachably connected with gas supply component, the utility model can realize the visualization of operation area, can adjust the size of dilating sac body through gas, effectively improves the dilating effect of urethral stenosis.