289 results about "Fiber network" patented technology

The invention discloses a distributed computing task non-perception migration method and system under optical fiber network interruption. The distributed computing task non-perception migration method comprises the following steps: constructing a distributed task migration system and an output system architecture; collecting network state indexes, constructing a network topological graph, and analyzing the state of an optical fiber link for fault prediction; obtaining a calculation task operation state, establishing a sub-task mapping relation, constructing a directed dependency graph, and generating a state snapshot; analyzing resource requirements, reserving standby resources, and deploying a distributed cache system; analyzing a fault influence range, extracting an influenced calculation sub-graph, and selecting a migration target node; in a target node preloading environment, reconstructing an execution context, and redirecting a communication path; and setting a data change capture mechanism, synchronizing incremental data and executing consistency verification. According to the method, non-perception migration of the computing tasks is realized, task continuity and data consistency are guaranteed, and the reliability of the distributed computing system in an optical fiber network fault scene is improved.

The invention discloses a panel vertical seam water stop structure repair effect evaluation method, which comprises the following steps of: firstly, synchronously obtaining surface crack and internal defect data through cooperative detection of infrared thermal imaging and ultrasonic flaw detection; and carrying out space alignment on point cloud data generated by three-dimensional laser scanning and an ultrasonic detection result, and establishing a BIM model containing a crack three-dimensional form. A practical engineering environment is simulated in a laboratory to carry out material accelerated aging and test key indexes such as an elastic recovery rate, a base surface state is evaluated through a temperature and humidity sensor array in a construction stage, a six-axis grouting robot is adopted to execute accurate filling, a curing process is monitored by a synchronous pre-embedded optical fiber sensor, and after aging is simulated by combining a hydraulic test with climate, a construction period is shortened. A distributed optical fiber network is used for continuously collecting deformation data, a comprehensive evaluation model is constructed based on mechanics, durability and sealing indexes, and finally material selection and process parameters are optimized through machine learning.

In some embodiments, a fiber optic cable may be monitored while reducing false positives from disturbances in trusted areas. In some embodiments, a system includes a light source, a first remote termination unit in a trusted area, and a second remote termination unit in another trusted area. The light source emits light through the fiber optic cable, which passes through the first remote termination unit, an untrusted area, and then the second remote termination unit. The remote termination units reflect portions of the light back towards the light source. The system uses a prediction model to detect disturbances in the untrusted area based on the reflected light data.

The invention discloses an ultra-flexible stretchable dimming film and a preparation method thereof, and relates to the technical field of dimming films, and the ultra-flexible stretchable dimming film comprises an upper transparent electrode layer, a dimming function layer and a lower transparent electrode layer which are sequentially stacked from top to bottom; the preparation method comprises the following steps: 1) preparing a main matrix material / ultraviolet curing resin mixture; 2) assembling the dimming film; and 3) ultraviolet light curing. According to the invention, through surface phosphonic acid functionalization treatment, covalent bond anchoring of cerium oxide nanoparticles is realized on a thermoplastic polyurethane fiber network; by constructing a full-thermoplastic polyurethane material system, the breakthrough of interfacial compatibility between a fiber reinforced phase and a polymer matrix is realized, so that the film has high tensile strain capacity and excellent fatigue resistance on the premise of keeping high transparency.

This application relates to a communication method and apparatus. The method includes: A first SMF network element receives first information from a PCF network element, where the first information includes an identifier of a first dedicated data network to which a terminal device subscribes; the first SMF network element sends a first request including the identifier of the first dedicated data network to a second SMF network element that supports the first dedicated data network; the first SMF network element receives, from the second SMF network element, a first response including second tunnel information of a second UPF network element, where the second UPF network element is a UPF network element selected based on the first dedicated data network; and the first SMF network element sends second information to a first UPF network element, where the second information includes the second tunnel information and a first traffic steering rule.

The invention belongs to the technical field of reservoir bank collapse monitoring and early warning, and particularly relates to a reservoir bank collapse real-time early warning system and method based on multi-source data collaboration. The system comprises a distributed optical fiber sensing network, a micro borehole clinometer array and an edge computing terminal, the edge computing terminal comprises a data acquisition module, a data processing module, a model computing module and an early warning module, and the model computing module adopts a dynamic prediction model cooperatively driven by a physical mechanism model and a deep reinforcement learning algorithm. And the pre-warning module analyzes and predicts the data preprocessed by the data acquisition module, and outputs a visual risk cloud picture and a graded pre-warning signal according to a prediction result and a self-adaptive pre-warning threshold algorithm. According to the invention, the strain and temperature information of the bank slope is monitored through the distributed optical fiber network, the change of inclination angles at different depths in the bank slope is monitored through the micro borehole inclinometer array, data fusion and analysis processing are carried out through the edge computing terminal, and finally real-time monitoring and early warning of the bank collapse risk are realized.

The invention relates to the technical field of space telescope calibration, in particular to a telescope pointing calibration method based on optical fiber interconnection, which comprises the following steps: providing reference light beams in different directions, enabling each lens to correspondingly receive the reference light beams by adjusting the lens pointing, splitting the reference light beams received by the lenses through an optical splitter, and obtaining a split beam; one beam is aligned and corrected through a camera, and the other beam is coupled into an optical fiber to record direction information; the calibration light beams are reversely emitted by the optical fiber through the optical switch and are emitted by the lens, each reference light beam in the known direction is reproduced, a reference light field is formed, the telescope to be calibrated is placed in the reference light field, the miss distance of each calibration light beam in the known direction on the mirror surface of the telescope to be calibrated is measured, and the pointing error is calculated and corrected according to the miss distance. The optical fiber network is used for establishing the unique mapping relation between the space direction and the optical fiber channel, miss distance measurement is carried out through dynamic time-sharing reproduction, and the problems of mechanical accumulative errors and the like existing in a traditional mechanical calibration method are solved.

The invention relates to the technical field of bridge pier construction guidance and monitoring, in particular to an intelligent sensing type expanded pier and a construction method. The expansion pier comprises an optical fiber network system and an intelligent steel mold, and the optical fiber network system comprises armored optical fibers and reinforced protection optical fibers special for a normal water level, is embedded in an expansion section and is fixed to a steel reinforcement framework; pressure, displacement and three-dimensional positioning sensors are arranged in the intelligent steel mold, and the intelligent steel mold is connected with a construction monitoring platform through a wireless transmission module. The method comprises the steps of planning an optical fiber path based on original bridge pier stress analysis, customizing and calibrating an intelligent steel mold containing a sensor, pouring concrete and monitoring and adjusting parameters in real time after the steel mold is assembled, embedding optical fibers when the concrete is poured to a preset elevation, and regularly collecting optical fiber data and establishing a health model in a bridge operation stage. Structural expansion and health monitoring are deeply fused, the construction quality is managed and controlled in real time, the operation risk is early warned in advance, data support is provided for intelligent bridge management and maintenance, the service life of a bridge is prolonged, and the whole life cycle cost is reduced.

The invention belongs to the technical field of batteries, and particularly relates to a preparation method of a solid lead battery for constructing a sulfuric acid gel solid electrolyte through in-situ polymerization gel forming. Comprising the following steps: mixing a polymeric monomer, a cross-linking agent, a reinforcing component and a sulfuric acid carrier solution, stirring and dispersing to obtain an electrolyte precursor solution; adding the initiation system into an electrolyte precursor solution, uniformly stirring, quickly injecting into a polar plate / partition plate assembly or a to-be-formed battery cell, and standing; performing triggering treatment after infiltration, performing in-situ polymerization and crosslinking to form gel, and curing to obtain a gel solid electrolyte cell; and performing formation, capacity grading and aging treatment on the gel solid electrolyte cell to obtain the solid lead battery. Through a process path of low-viscosity precursor injection-in-situ gel forming in the battery cell-subsequent formation, full infiltration and stable immobilization of electrolyte on a pole plate pore channel and a separator fiber network are realized, so that the risks of liquid leakage and acid mist are reduced, acid layering is inhibited, and the consistency and cycle stability of the battery cell are improved.

The invention discloses a three-dimensional graphene-carbon fiber network and double-phase high-entropy alloy synergistic strengthening and toughening ceramic cutter material as well as a preparation method and application thereof. The material is prepared from the following components in parts by mass: 87.8 to 90.9 parts of aluminum oxide, 8 to 10 parts of AlCoCrFeNi five-element equal-atomic-ratio high-entropy alloy, 1 to 2 parts of carbon fiber and 0.1 to 0.2 part of graphene. The preparation method comprises the steps of preparation of graphene grafted carbon fibers, preparation of AlCoCrFeNi high-entropy alloy powder, preparation of aluminum oxide-high-entropy alloy-graphene grafted carbon fiber composite ceramic powder and spark plasma sintering. The ceramic cutting tool material is used for preparing high-speed cutting tools. According to the preparation method, a plastic toughening mechanism of a double-phase high-entropy alloy is organically combined with a multi-stage toughening effect of a three-dimensional graphene-carbon fiber network, and a composite ceramic material with high hardness and high fracture toughness is obtained through spark plasma sintering, so that the adaptability of a cutter under a high-speed cutting condition is remarkably improved, and the service life of the cutter under the high-speed cutting condition is remarkably prolonged.

The application provides a window drift processing method and an optical line terminal, an optical network unit and a computer readable storage medium. The window drift processing method applied to the OLT comprises the following steps: in the case that a first burst signal corresponding to an ONU is received, first information is determined according to the first burst signal, the first information is used for representing a window drift condition of the first burst signal; a drift domain is constructed according to the first information and the first burst signal; a GTC frame is transmitted to the ONU, so that the ONU corrects the window drift condition of the first burst signal according to the GTC frame, and the GTC frame is filled with the drift domain. In the embodiment of the application, the deviation can be quickly and accurately corrected directly according to the GTC frame, so that the efficiency of correcting the window drift of the burst signal is improved, and the stability of the passive optical fiber network is improved.

This utility model discloses a broadband high-speed photodetector module, including: a housing and a driving circuit. The housing has an internal mounting cavity, a high-speed broadband response photodetector, and is fixed inside the housing via an SMA interface. An OLED display screen is embedded on the front of the housing and connected to the driving circuit via a flexible circuit board. The high-speed broadband response photodetector has a spectral response range of 800nm ​​to 1650nm, fully covering the wavelength requirements of multimode and single-mode optical fibers. It solves the limitations of traditional modules with single wavelength or narrow spectrum, significantly improves compatibility with different optical fiber systems, and is suitable for complex hybrid optical fiber network scenarios. Through the coordinated design of the cylindrical body on the side wall of the housing, the air outlet, and the heat dissipation components, the heat generated by the photodetector during operation can be quickly dissipated, avoiding performance degradation or device damage due to temperature rise, and ensuring long-term stable operation of the module under high-speed and high-load conditions.

The application provides an optical network communication method and a communication device. The method is applied to an optical fiber network, and the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. The master device sends a first message to the first slave device, the first message is a wireless local area network management control interface (WMCI) message, the first message is used for managing or controlling a wireless local area network (WLAN) function of the first slave device, and the first message comprises first indication information, the first indication information is used for indicating a time delay requirement or a priority of the WLAN function corresponding to the first message. Since the first indication information in the first message can indicate the priority or the time delay requirement of the first message, the first slave device can decide whether to process the first message preferentially based on the first indication information, so that the bandwidth occupied by low-priority messages or messages with ordinary time delay requirements can be reduced, and the communication real-time performance of high-priority messages or messages with low time delay requirements can be improved.

The invention belongs to the technical field of flexible electronic sensing, and discloses novel leather-based pressure-sensitive sensing electronic skin and a preparation method thereof. According to the leather-based pressure-sensitive sensing electronic skin, tanning-agent-free leather serves as a base material, and a three-dimensional conductive network is constructed in the tanning-agent-free leather base material, so that pressure-sensitive sensing is achieved. The pressure-sensitive sensing electronic skin provided by the invention completely retains a three-dimensional multi-level fiber network structure of natural leather from micrometer to nanometer, so that when the leather-based pressure-sensitive sensing electronic skin is subjected to external pressure, the collagen fiber can realize cross-scale deformation, thereby realizing wide and sensitive response from tiny pressure to higher pressure, and further realizing the purpose of improving the safety of the leather-based pressure-sensitive sensing electronic skin. And human body motion monitoring is realized.

The invention discloses a high-adhesiveness film sintered aluminum flat wire and a preparation process thereof, a first coating contains plastic metal filler, a second coating contains high-modulus fibers, the high-modulus fibers in the second layer and the plastic metal filler in the first layer form a mechanical interlocking structure, and the metal filler and an aluminum matrix form physical metallurgical bonding. The fiber network in the second layer rapidly disperses local concentrated stress to a larger area by means of the high elastic modulus of the fiber network, and when the stress peak value which is not completely eliminated is transmitted to the first layer, the plastic metal filler can generate irreversible plastic deformation; the bonding strength between the thin film layers and between the thin film layers and the aluminum matrix is enhanced through a mechanical interlocking structure and physical metallurgical bonding, mechanical energy is converted into deformation work consumption, stress is prevented from being accumulated at an interface, and therefore the anti-fatigue and anti-impact performance of the coating is remarkably improved.

The application belongs to the technical field of functional textile materials, and relates to a one-way wetting film with gradient pore size and a preparation method thereof. The preparation method comprises the following steps: simultaneously starting a first fiber electrostatic spinning device and a third fiber electrostatic flocking device, and keeping for a period of time; starting a fourth fiber electrostatic flocking device, and keeping for a period of time; starting a second fiber electrostatic spinning device, and keeping for a period of time; closing the first fiber electrostatic spinning device, and keeping for a period of time; closing the fourth fiber electrostatic flocking device, and keeping for a period of time, thereby obtaining the one-way wetting film with gradient pore size. The one-way wetting film with gradient pore size comprises a reverse fiber network layer, a hydrophobic layer, a transition layer, a hydrophilic layer and a front fiber network layer which are sequentially adjacent. The application realizes the integration of the film structure, and solves the problems of discontinuous pores, easy peeling between layers, insufficient wear resistance and structural stability in the prior art.

The invention relates to a degradable nerve repair membrane and a preparation method thereof, and belongs to the technical field of nerve repair membranes, the degradable nerve repair membrane comprises a biological composite structure inner layer, a support outer layer and a bonding layer, and the biological composite structure inner layer and the support outer layer are bonded through the bonding layer. According to the invention, polypyrrole with excellent electrochemical activity, environmental stability, controllable conductivity and poor mechanical properties and collagen nanofibers with high biocompatibility and capable of forming a nano-scale fiber network are adopted to form a conductive-biological composite structure as an inner layer through electrostatic spinning, and the PLGA porous membrane is prepared through 3D printing. A PLGA porous membrane with parallel axial microchannels on the surface is used as an outer layer, so that the membrane body structure can effectively guide directional growth of axons while ensuring conductivity, accurate preparation can be realized according to needs, the degradation period is matched with the nerve regeneration rate, and the degradation time can be regulated and controlled through the proportion of a copolymer; the repairing effect is prevented from being influenced by too fast or too slow degradation.

A rack mount assembly for an equipment rack of a fiber optic network is disclosed. The equipment rack includes a front side with a first vertical frame member opposing a second vertical frame member. The rack mount assembly includes at least one rail member configured to be coupled to the equipment rack and an adapter module configured to be movably supported from the equipment rack by the at least one rail member. The adapter module includes at least one clip configured to releasably coupled the adapter module to the at least one rail member. The adapter module further includes an adapter bank is configured to receive a plurality of adapters where optical connections are made between optical fibers of fiber optic cables. The adapter module is pivotable relative to the equipment rack such that the adapter module is movable between a lowered position and a raised position.

The invention relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage equipment predictive dynamic balancing device and system based on photon perception. The sensing module is embedded into the end face of the rotor body; the control module is connected with the sensing module to receive transmission; the execution module is arranged along the circumference of the rotor body and is connected with the control module so as to be driven by the control module; the safety mechanism is located in an annular cavity formed in the rotor body and connected with the rotor body so as to be driven by centrifugal force. The beneficial effects of the invention are that the photonic crystal fiber network unit collects rotor vibration, displacement, stress, temperature and other data in real time and predicts the unbalance trend, the control module generates an adjustment strategy, the execution module is driven to carry out counterweight compensation and unbalance correction, and the system is kept stable.

The application provides an uplink overhead configuration method, an optical fiber network system and related equipment, which are used for separately configuring uplink overheads for sub-devices supporting specific uplink rates, and improving the efficiency of uplink bursts. A first message received by a first sub-device contains first indication information, and the first indication information is used to indicate that the first message is applicable to configuring uplink burst overhead parameters of a sub-device supporting a first uplink rate. The first sub-device determines that the first sub-device triggers the configuration of uplink burst overhead parameters of the first sub-device based on the first message only when the first sub-device supports the first uplink rate, and does not trigger other sub-devices supporting uplink rates (uplink rates other than the first uplink rate) to configure uplink burst overhead parameters based on the first message. This is conducive to realizing the separate configuration of uplink overheads for sub-devices supporting specific uplink rates, and further improving the efficiency of uplink bursts.

The application discloses a kind of coal mine underground sealed roadway gas content real-time determination system and determination method, belong to coal mine gas content determination field;The method comprises: before roadway sealing, distribute distributed sensing optical fiber network and determine initial volume;After sealing, continuously monitor surrounding rock strain and internal gas pressure, temperature and gas concentration;Periodically inject known amount of inert gas into sealed space, use the change of gas concentration, pressure and temperature before and after injection, based on gas state equation to invert current absolute volume;Based on optical fiber strain data, calculate volume estimate through geometric and physical model, fuse the above two volume data, obtain continuous, high-precision optimal dynamic volume;Finally, fuse dynamic volume, concentration, pressure and temperature data, calculate gas total content and its change rate in standard state in real time, realize hierarchical early warning and gas resource, risk quantification management.

A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The separator includes one or more fiber layers wherein at least one of the fiber layers includes a fiber network of fibers comprising a first copolymer, or at least one of the fiber layers includes a network of core-shell type fibers comprising a first copolymer. The first copolymer includes a copolymer of a monomer mixture, the copolymer including: a first structural unit including a unit derived from an aromatic unsaturated monomer; a second structural unit derived from a (meth) acrylic monomer, the (meth) acrylic monomer including an alkyl group having four or more carbon atoms in the main chain in an ester moiety; and a third structural unit derived from a sulfonic acid group-containing monomer.

The application provides an optical network communication method and a communication device. The method is applied to an optical fiber network, and the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. In the method, the master device sends a third message to the first slave device, the third message is a wireless local area network management control interface (WMCI) message, the third message is used for managing or controlling a wireless local area network (WLAN) function of the first slave device, the third message comprises fourth indication information and fifth indication information, the fourth indication information is used for indicating a first characteristic, and the fifth indication information is used for indicating whether the first characteristic of the first slave device is enabled. The first characteristic of the first slave device is flexibly configured by the master device, and therefore, the efficiency of the master device in managing and controlling the first slave device is improved.

The application provides a silk fibroin nanofiber composite film and a preparation method and application thereof. The preparation method comprises the following steps: preparing a self-supporting film with an ordered and continuous fiber network framework from a silk fibroin nanofiber dispersion liquid, wherein the fiber network framework serves as a reinforcing phase; contacting the self-supporting film with a solution containing a matrix phase and / or a functional phase, so that the matrix phase and / or the functional phase is filled into the fiber network framework of the self-supporting film to obtain a composite precursor film; and extruding the composite precursor film, or extruding and cross-linking the composite precursor film to obtain the silk fibroin nanofiber composite film. The method of the application adopts a time sequence separation strategy of 'first making a framework and then filling', and the self-assembly ordered structure of the silk fibroin nanofiber is completely reserved. The reinforcing phase, the matrix phase and the functional phase in the obtained composite film synergistically act, and the composite film has high mechanical strength, low swelling rate and functional integrability, and can be applied to the fields of implantable medical devices or biosensors.

The embodiment of the invention discloses a communication device and method between a drill tower and a manipulator, and the device comprises a first optical fiber network conversion module which is disposed at a drill tower side, an electric port of the first optical fiber network conversion module is connected with a core switch at the drill tower side, and an optical port of the first optical fiber network conversion module is connected with an optical fiber; the first optical fiber network conversion module is used for receiving a control electric signal triggered by the core switch, converting the control electric signal into a control optical fiber signal and transmitting the control optical fiber signal to the second optical fiber network conversion module through an optical fiber; the second optical fiber network conversion module is arranged on the manipulator side, an electric port of the second optical fiber network conversion module is connected with the controller corresponding to the manipulator, and an optical port of the second optical fiber network conversion module is connected with the optical fiber; the optical fiber receiving module is used for receiving a control optical fiber signal transmitted by an optical fiber and converting the control optical fiber signal into an electric signal; the communication device can fall to the ground through module deployment and simple configuration, full-process accurate conversion of driller instructions from network electric signals to optical fiber signals to network electric signals can be achieved, and the stability and reliability of communication between a drill tower and a mechanical arm are improved.

This invention discloses a network path optimization method and system. The method includes: adjusting the adaptive weights of the heuristic function in the underlying model LPA* algorithm to intelligently change the magnitude of the heuristic function's influence with iteration; simultaneously, introducing a bias p in the K-value calculation to improve the algorithm's search efficiency; and performing unbalanced allocation of initial pheromones for the ant colony algorithm based on the initial path calculated by the underlying model. The upper-layer model applies the ACO algorithm to plan fiber optic network paths on a grid map to obtain the globally optimal network path. This invention, through the design of a hierarchical algorithm, provides the ant colony algorithm with prior information including pre-selected paths, enhancing the traditional ant colony algorithm's ability to guide pre-selected areas in path planning. This enables faster search for feasible paths, effectively solving the problems of slow search speed and susceptibility to local optima in the traditional ACO algorithm, and significantly improving the overall performance of the fiber optic network planning system.

The application discloses an oil-immersed transformer communication system and relates to the technical field of power system monitoring, which comprises a transformer substation A, a transformer substation B and an optical fiber network connecting the two, wherein the transformer substation A is internally provided with a core monitoring device, a temperature measuring device and an oil sample analysis device; the core monitoring device, the temperature measuring device and the oil sample analysis device are connected with a main transformer on-line monitoring device through an RS-485 interface; the main transformer on-line monitoring device is connected with a switch through an optical fiber; the switch is sequentially connected with a transformer monitoring server, an automation system server and an optical fiber distribution frame; the switch of the transformer substation A is connected with an edge computing gateway, which is used for data screening and transmission through a 4G network; the optical fiber distribution frame of the transformer substation B is connected with a switch through an optical fiber; and the switch is sequentially connected with a transformer monitoring server, an automation system server and a monitoring machine. The application can realize the automatic acquisition, screening and reliable transmission of transformer data among multiple transformer substations.

1. The name of the design product: router (NP3003G). 2. The use of the design product: for connecting fiber-optic network for network signal transmission. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to a powder processing mechanism and a dry mixing method. The powder processing mechanism comprises a mixing module, a compaction module, a kneading module, a block breaking module and a shaping module which are sequentially stacked in the vertical direction. The mixing module is used for mixing and dispersing various preset powder materials and outputting primarily mixed first mixed powder; the jolt ramming module is used for mechanically fusing the first mixed powder and outputting uniformly coated second mixed powder; the kneading module is used for kneading and homogenizing the second mixed powder and outputting a third mixed bulk with a three-dimensional fiber network; the block breaking module is used for breaking the third mixed bulk and outputting fourth mixed powder with the particle size of centimeter level and below; and the shaping module is used for shaping the fourth mixed powder and outputting fifth mixed powder with the particle size of millimeter and below. Through multi-module integration, multi-powder continuous mixing dispersion, fusion coating and homogeneous kneading can be realized, the fibrosis degree and uniformity of an adhesive can be accurately regulated and controlled, and the particle size precision can be accurately controlled, so that continuous production is realized.

This invention provides a road defect detection device, belonging to the field of road engineering monitoring technology. The device includes a distributed fiber optic acoustic wave sensing system, a sensing fiber optic network, and a data processing unit. The sensing fiber optic network adopts a multi-layered, longitudinally linear arrangement, with its density gradually decreasing from top to bottom. The sensing fiber optic network is connected to the distributed fiber optic acoustic wave sensing system. The data processing unit establishes bidirectional communication with the distributed fiber optic acoustic wave sensing system via Ethernet. This invention solves the problem that existing road defect detection devices based on DAS technology cannot simultaneously meet the monitoring needs of road structures at different depths.