94 results about "All optical" patented technology

A nonlinear all optical machine learning system (NAOMLS) with nonlinear optical resonator-based continuous wave and / or spiking neurons (NORs) and linear optical components or layers (LOL) learns to implement target tasks after machine learning based direct and / or indirect inverse design and / or optimization of the NORs and / or optimization of the LOL. The inversely designed and / or optimized NORs and the optimized LOL collectively define learnable mapping functions between input lights and output lights of the NAOMLS to meet target objectives for target tasks. In some embodiments, the NORs are indirectly and inversely designed to meet inversely designed objectives in order to be integrated with the NAOMLS so that the NAOMLS can function properly to meet target objectives for target tasks. In some embodiments, the NORs are integrated directly with the NAOMLS and inversely designed and / or optimized with the LOL to directly meet target objectives for target tasks.

A method for determining a bitrate allocation of a plurality of optical channels in an optical transmission link with discretized channel bitrates, the method comprising determining an initial discretized bitrate allocation and a corresponding initial power allocation for the plurality of optical channels for supporting the initial discretized bitrate allocation with the proviso that all optical channels meet a pre-defined optical signal-to-noise, OSNR, threshold for the respective initial discretized bitrate allocated to the respective optical channel; starting from the initial power allocation, varying, for an investigated optical channel of the plurality of optical channels, a channel power of the investigated optical channel to estimate a highest supported discretized bitrate for the investigated optical channel, wherein the highest supported discretized bitrate is the highest discretized bitrate for which the investigated optical channel meets a corresponding OSNR threshold; including the investigated optical channel in an upgrade candidate subset of the plurality of optical channels for potential bitrate upgrades based on the highest supported discretized bitrate exceeding the initial discretized bitrate for the investigated optical channel; and providing the upgrade candidate subset to an upgrade allocation algorithm.

A cable state evaluation method and apparatus, and a terminal device and a storage medium. The method comprises: acquiring sensing data by means of an optical fiber sensor; dividing sampling points, and dividing sampling points on the same optical fiber segment into one group; integrating sensing data of each group of sampling points and inputting same into an optical fiber segment state evaluation model, so as to obtain a state evaluation result of a corresponding optical fiber segment; and on the basis of state evaluation results of all optical fiber segments, obtaining a cable state evaluation result of an entire optical fiber. Data collection, processing and evaluation can be automatically performed, thereby reducing manual intervention and improving the work efficiency and the accuracy of cable state evaluation results.

This invention provides a power supply method, a power supply device, an electronic device, and a readable storage medium, relating to the field of power supply technology. The power supply method includes the following steps: at a first moment, determining the maximum power consumption of each optical module in the power supply equipment under all operating conditions; summing the maximum power consumption of all optical modules at the first moment to obtain the total power consumption of all optical modules in the power supply equipment under operating conditions at the first moment; and modifying the protection threshold of the power supply module of the power supply equipment based on the total power consumption. In this invention, by determining the total power consumption of all optical modules under operating conditions and modifying the protection threshold of the power supply module of the power supply equipment, in the event of a short circuit or micro-short circuit in an optical module, since the modified protection threshold matches the total power consumption of all optical modules in the power supply equipment under operating conditions, the power supply module can perform a timely response operation, thereby effectively and promptly protecting the power supply equipment and the optical modules.

The invention discloses a semiconductor resistivity nondestructive testing method and system based on modulation light reflection, relates to the technical field of semiconductor resistivity detection, and aims to accurately measure a modulation component delta R / R of light reflectivity through a light reflection modulation signal so as to calculate the semiconductor resistivity and further realize quantitative measurement of the semiconductor resistivity. The sensor has ultrahigh sensitivity, can detect tiny carrier concentration change, and is very sensitive to electrical properties of surface and near-surface areas; meanwhile, the spatial resolution is high, and the micron-scale light spot at the sample is suitable for micro-area measurement; a complete optical method does not cause any damage to the sample; various types of samples can be measured; the measuring speed is fast, and the system can be easily integrated in a production line for real-time monitoring.

The invention belongs to the technical field of laser interference precision measurement, and provides a full geometric error displacement calculation method based on non-approximate simplification of a light beam track. All optical machine geometric errors can be completely calculated, the real refraction condition can be completely calculated, no approximate error is introduced in the simplification process, and the displacement calculation process conforms to the real light beam track condition; according to the method provided by the invention, all reflection phenomena in the interferometer are simplified, parameter integration is carried out on a reflecting surface and a receiving surface of a reflected light beam, an originally complicated multi-beam calculation process is optimized, the number of parameter items required for completely describing geometric errors is reduced, and the calculation efficiency is improved. And meanwhile, the light beams which do not influence the calculation of the total optical path difference are deleted, so that the calculation efficiency is high.

The invention discloses an automatic configuration method for optical path subsystem design, and relates to the technical field of optical communication transmission, and the method comprises the steps: inputting configuration parameters required by an optical path subsystem to be designed, and summarizing and outputting a first configuration table which comprises the optical cable lengths, average attenuation, optical cable types, protection modes and transmission rates of all optical path sections; data resource analysis is carried out on the table based on the AI learning technology, and an optical path configuration scheme of optical amplification board card combination and dispersion compensation under different transmission rates is given; and performing multi-layer verification on the optical path configuration scheme, and outputting an optimal configuration scheme. According to the method, on the basis of the AI calculation and automation technology, corresponding configuration is provided for different optical path conditions under the condition that a machine continuously learns configuration, and the four technical values of efficiency improvement, accuracy controllability, cost optimization and standard unification are achieved.

The invention discloses an infrared explosion-proof light source based on laser aiming, relates to the technical field of optical aiming equipment, and aims to solve the technical problems that in the prior art, the light source, aiming, structure and environmental adaptability are poor, heat dissipation is not achieved in part of design, and collimation stability in an extreme environment is difficult to guarantee. And one end of the telescope mechanism is connected with the explosion-proof cavity mechanism. According to the invention, a full-rigid integration and sealing design is adopted, so that all optical elements are rigidly integrated in a firm lens cone to form a stable optical reference, the design enhances the vibration resistance and impact resistance of equipment, the equipment can stably work in a severe industrial environment, and the equipment has high reliability in an industrial field with frequent vibration and impact. A user does not need to worry about equipment misalignment or damage, maintenance cost and downtime are reduced, meanwhile, pollution and corrosion of internal optical elements are effectively prevented through the sealing design, and the service life of the equipment is prolonged.

The invention provides a super-power illumination system and illumination method based on multi-light-source optical fiber integration, and the system comprises at least two independent light source modules, optical coupling units with the number corresponding to that of the light source modules, a plurality of optical transmission channels, and an integrated optical output terminal comprising a light beam synthesis and scattering device. The optical coupling units are used for focusing and coupling light rays emitted by the corresponding light source modules, and the multiple light transmission channels are used for conducting the light rays focused by the light source modules; and the integrated optical output terminal is used for receiving the light beams from all the optical fibers, synthesizing the light beams and scattering the light beams into uniform and large-spot integrated output light. Light is transmitted through the optical fiber, no current passes through a transmission path, potential safety hazards such as electric leakage and electric sparks are completely eradicated, efficient focusing and coupling of visible light are achieved through the optical coupling module, loss of the light in the initial transmission stage is greatly reduced, and the overall energy efficiency of a lighting system is improved.

The invention discloses a fused quartz substrate integrated laser radar transmit-receive optical module and an adjusting method, and belongs to the technical field of optical instruments. According to the module, all optical elements for transmitting and receiving optical paths are integrated on the same fused quartz substrate, and each element is provided with a micro sensor and a micro adjusting device. The system comprises a first control loop, a second control loop, a first central signal gating and routing unit and comparative judgment and arbitration logic. By means of six predefined paragraph diagnosis modes, the system can accurately position misalignment paragraphs in an optical path and only drives the micro adjusting devices corresponding to the misalignment paragraphs to conduct cooperative closed-loop compensation, and self-adaptive alignment from local fine adjustment to global search is achieved. The method has the beneficial effects of full-life-cycle self-maintenance, accurate and efficient adjustment, global optimization of a transceiving link, remarkable reduction of full-life-cycle cost and the like, and is particularly suitable for the fields of vehicle-mounted laser radars with high reliability requirements and the like.

The invention discloses a cerebrospinal fluid sampling and detecting device, and belongs to the technical field of neurology. According to the cerebrospinal fluid sampling and detecting device, a detecting and distributing head, a puncture needle, a control cabinet and a detecting box are arranged on a device base, a sealing sleeve is arranged in the detecting and distributing head, a preliminary checking disc is installed in the sealing sleeve, and a three-way valve is installed between the detecting box and the detecting and distributing head. The cerebrospinal fluid sampling and detecting device solves the problems that an existing cerebrospinal fluid sampling and detecting device cannot carry out split charging to achieve automatic adjusting operation, and the detection effect is affected, according to detection data, the electric actuator is adjusted through the plc module, the three-way valve and the adjusting valve are controlled, and therefore according to the detection result, the cerebrospinal fluid can be firstly split charged, and then split charging is carried out. All optical and electrochemical signals are captured by an optical fiber sensing array plate and a detection box which are arranged in the detection distribution head, and are transmitted to a control cabinet through Bluetooth, so that different detection processing work is carried out in time, treatment schemes are effectively switched, and the detection effect is improved.

The invention discloses an optical fiber beam combination method, and relates to the technical field of optical fiber beam combination, and the method comprises the following steps: S1, selecting a plurality of optical fiber units to be combined, the optical fiber units being single optical fibers and / or combined optical fibers; s2, asynchronous coupling is carried out on a plurality of optical fiber units to be combined, in asynchronous coupling, two optical fiber units are combined, an output optical fiber after beam combination is used as an optical fiber unit and then combined with another optical fiber unit, and the rest can be done in the same manner until beam combination of all optical fiber units is completed; s3, packaging protection is carried out on the beam combining area; according to the invention, through an asynchronous coupling mode, the plurality of optical fiber units which are concentrated together for coupling are spatially dispersed, so that the problem of heat concentration is avoided, the upper limit of optical fiber coupling energy can be broken through, and the optical fiber units can be infinitely superposed within the limit of optical energy which can be borne by the optical fiber.

The utility model discloses a laser displacement sensor shell using a diffusion lens and a linear polarizer in a combined mode, and particularly relates to the field of photoelectric measurement. Comprising a lower shell, the upper cover of the lower shell is provided with a cover plate, the lower shell comprises a bottom plate, the surface of the bottom plate is vertically connected with a U-shaped first baffle, a second baffle is connected between the opening ends of the first baffle, and a first groove and a second groove are formed in the second baffle at intervals; the first groove is located at the receiving end of the laser displacement sensor. A first connecting plate is connected between the opening ends of the first grooves, and a first through hole matched with the first linear polarizer is formed in the first connecting plate; the second groove is located at the transmitting end of the laser displacement sensor; a second connecting plate is connected between the two inner side walls of the second groove, and two second through holes parallel to each other are formed in the second connecting plate. Through the shell, the laser displacement sensor body and each optical element can be integrally packaged.

The embodiment of the invention discloses a network cutover checking method and electronic equipment. The method comprises the following steps: acquiring a target cutover work order; according to the first identification information, determining one or more optical network devices to be subjected to cutover adjustment; determining user information corresponding to the one or more optical network devices according to the one or more optical network devices; determining second identification information of all optical network units (ONU) under the original cutover network element and / or the target cutover network element according to the original cutover network element and / or the target cutover network element; and checking the target cutover work order according to comparison between first terminal equipment identification information in the user information and second terminal equipment identification information in the second identification information. Through the scheme, the cutover range can be accurately identified, the data consistency can be verified, cutover errors are reduced, and the user recovery quality is improved.

This invention provides a fully optical end-tidal carbon dioxide monitoring device for high-flow oxygen supply, comprising an air inlet (1), an air outlet (2), an infrared light source (3), a near-infrared light source (4), a cavity (5), M photodiodes (6), and a control unit (7); the infrared LED light source has a center wavelength of 4.3 μm, the near-infrared LD light source has a center wavelength of 1310 nm, the M photodiodes (6) are arranged in a ring within the detection tube (8), and the control unit (7) carries a detection method to achieve high-speed and high-precision measurement. This invention can be used for high-speed and accurate measurement of exhaled CO2 concentration in clinical high-flow ventilators.

The application provides a pre-tailings discarding mode distinguishing method based on useful mineral dissemination characteristics, and relates to the field of mineral processing. The pre-tailings discarding mode distinguishing method based on useful mineral dissemination characteristics comprises the following steps: preparing a plurality of optical sections from an ore sample; analyzing the optical sections by using an optical microscope and an image analysis technology, and classifying the dissemination characteristics of useful minerals in the optical sections; calculating the average occupancy of local enrichment type in all optical sections, the average occupancy of vein type in all optical sections, and calculating a pre-enrichment proportion Pvalid; comparing the pre-enrichment proportion with a preset threshold value, and if Pvalid is greater than or equal to the preset threshold value, it is determined that the ore sample is suitable for pre-enrichment by using a pre-tailings discarding process. The prediction conclusion of the method of the application is highly consistent with actual industrial test and production data, has the advantage of high accuracy, solves the problem that the pre-discarding effect can only be detected by test, and is beneficial to improving work efficiency and reducing cost.

This application provides a multi-parameter fiber optic monitoring device for bolt loosening on transmission towers, belonging to the field of bolt loosening monitoring. It aims to solve the problems of existing bolt loosening monitoring schemes, such as susceptibility to strong electromagnetic interference, low integration, inability to cover the entire loosening cycle, and high false alarm rate. This device includes an integrated fiber optic grating-Fabry-Perot cavity sensor head and signal demodulation system, employing a coaxial push rod-mass block integrated linkage structure to achieve synchronous acquisition and mechanical decoupling of bolt axial displacement and triaxial vibration. Through a dual-band optical path architecture of 1310nm O-band and 1550nm C-band, combined with a dual-window wavelength division multiplexer, complete optical decoupling of the two parameters is achieved. It is equipped with dual-link independent wavelength calibration, hardware full-link synchronous triggering, and a dual-parameter mutual verification mechanism. This application is inherently resistant to strong electromagnetic interference and can achieve highly reliable monitoring of bolt loosening throughout its entire lifecycle.

The utility model relates to the technical field of traffic safety and optics, and discloses a changeable road pointing board which comprises a main direction pointing arrow, an auxiliary direction pointing arrow, an environment illumination sensor system, a main direction arrow driving control system, an auxiliary direction arrow driving control system, a power line system and a road pointing board mounting frame. The environment illumination sensor system informs the main direction arrow driving control system to control the LED lamps on the main direction directing arrows to be turned on, and the LED lamps are turned on, and the white substrates of the main direction directing arrows reflect LED white light for directing. Under the condition that the auxiliary direction directing arrow is needed to direct the way, the LED white light on the auxiliary direction directing arrow is turned on and presses the blue substrate of the auxiliary direction directing arrow to present the bright white arrow for directing the way, the scheme can realize that the directing direction can be changed, the directing direction can be adjusted according to the road condition, and the directing arrow can be lightened when the environment illumination is low, so that the directing direction can be changed. And a driver can conveniently and remotely recognize the road direction.

The invention provides an AR micro-projection color light machine and near-to-eye display equipment, and relates to the technical field of AR. The optical machine comprises an imaging lens group which comprises a diaphragm, a first lens, a second lens, a third lens and three fourth lenses which are sequentially arranged from an object side to an image side along an optical axis; the color combination prism is an X-cube color combination prism, is arranged between the third lens and the fourth lens, and is used for combining the three-color light path into one color light path for outputting; the image source is arranged on the image side of the fourth lens and used for providing an electronic image; wherein the first lens is a positive lens, the second lens is a positive lens, the third lens is a negative lens, the fourth lens is a positive lens, and the second lens and the third lens are cemented lenses. By constructing an optical framework of the lens and the X-cube color combination prism and through cooperation of all optical elements, full-color display can be achieved, and meanwhile the multiple aspects of performance such as the small size, the large field angle, the excellent optical effect and the high definition are taken into account.

An underwater all-optical six-axis force sensor based on an anti-magnetic suspension principle comprises a low-frequency magnetic potential well unit, a suspension mechanical oscillator unit and a displacement detection unit, and the low-frequency magnetic potential well unit suspends and binds the suspension mechanical oscillator unit in a water medium based on the anti-magnetic suspension principle. The stress motion displacement of the suspension mechanical vibrator unit is converted into a light intensity signal through the displacement detection unit, a stress result is obtained through corresponding calculation, and force sensing is achieved. The force sensor is a suspension oscillator without physical contact, the detection mode is all-optical signal detection based on optical fiber without physical contact, and the force sensor can be directly placed in a water medium to carry out force signal measurement. Compared with an optical fiber underwater acoustic sensor, the anti-magnetic levitation force sensor adopted in the scheme has the advantages of being simple in structure and low in system noise, six-axis force signal measurement can be achieved through a single levitation oscillator, and higher low-frequency underwater acoustic detection sensitivity is achieved.

The application provides a skin filler in-vivo detection device and method, relates to the technical field of skin and subcutaneous tissue detection, and comprises a light source and a spectrometer module, a probe area, the light source and the spectrometer module are used for providing OCT broadband interference light and Raman excitation light, and receiving and processing OCT interference signals and Raman scattering signals; the probe area is integrated, and the probe area is provided with optical beam combining and separating elements, a two-dimensional scanning galvanometer and a scanning lens; the application breaks through the limitation of traditional evaluation means, realizes real-time monitoring in situ in the human body, adopts full-optical non-invasive design, the probe can be directly attached to the human skin, through coaxial dual-mode light paths, long-period longitudinal follow-up of the same part of the human body is carried out under the premise of non-invasion and non-radiation, the most real in-vivo metabolism data of the human body is acquired, and the problems that the traditional animal model data is greatly different from the human body and the human face cannot be destructively biopsied are solved.

An optical detector for detecting a coolant leak within an information handling system includes a light source, light sensor, and controller. The light source is configured to illuminate objects within the information handling system with a pattern of light. The pattern is determined according to a randomized encoding. The light sensor is configured to generate a signal in response to absorbing light emitted from an object illuminated by the light source. The signal is encoded according to the randomized encoding. A controller operatively coupled with the light sensor is configured to generate a decoded signal by reversing the randomized encoding of the signal. The controller is configured to identify a potential coolant leak in response to the decoded signal matching a predetermined pattern that indicates a coolant leak.

This application discloses a method, device, electronic device, and storage medium for identifying plate damage. By introducing a sinusoidal voltage-modulated optical carrier signal as the transmission medium for magnetic field characteristics, the "electrical sensing" of traditional electrical probes is completely transformed into "optical sensing" of all optical fibers. This makes the front-end detection circuit in high-risk sites such as natural gas pipelines completely passive, eliminating the physical mechanisms of electric sparks, short circuits, or electrostatic discharge caused by current and voltage at the physical level, and achieving inherent safety at the physical level.

The invention provides a method and a device for determining a geographic position of an optical network unit. The method comprises the following steps: determining the optical network unit; acquiring a plurality of pieces of undetermined geographical location data of the optical network unit; performing initial grouping on the optical network units according to the optical splitter, and clustering each group by using a hierarchical clustering algorithm to generate a corresponding final group; determining a plurality of undetermined geographical location data of the optical network units contained in the final group, detecting and removing abnormal geographical location data, and defining the remaining geographical location data as an effective geographical location data set; and carrying out average calculation on each effective geographic position data, and taking the result as the geographic position data of all optical network units in the final group corresponding to the effective geographic position data set. Therefore, the positioning accuracy of the optical network unit can be improved.

Disclosed are methods and compositions for real-time monitoring cellular calcium ion dynamics by red-shifted genetically encoded indicators under optogenetic control, in which millisecond-timescale of temporal control of optical activation or inactivation and signal recording can be achieved. The methods include artifact-free functional imaging in conjunction with optogenetic tools for studying cellular physiology, signal transduction and neuronal activity. Thus, all-optical and non-invasive approaches for drug screening, toxicity testing and assessment of cell functions may be provided.

The invention provides a guide rail virtual digital lofting and mounting pose real-time calibration method, which comprises the following steps that: at least two positioning tools are provided, each positioning tool is provided with three collinear optical mark points, and mark points on two sides of the optical mark points are symmetrically arranged relative to a center mark point; the two positioning tools are fixed to the upper end and the lower end of the guide rail correspondingly, and the positioning tools are tightly attached to the two working faces of the guide rail; global coordinates of all optical mark points are obtained in real time through a motion capture camera array, and the six-degree-of-freedom pose deviation of the guide rail is independently calculated based on a coordinate comparison scheme corresponding to the positioning tool layout; the horizontal translation deviation of the upper end of the guide rail is calculated; calculating the inclination angle deviation of the guide rail in the vertical plane; the rotation angle deviation of the guide rail around the axis in the length direction of the guide rail is solved through the coordinate difference of the mark points on the two sides of the same positioning tool on the single coordinate axis; and according to the calculated pose deviation of each degree of freedom, the installation state of the guide rail is adjusted in a targeted mode, and real-time calibration is completed.

The invention discloses an optical module splitting mode configuration method and electronic equipment, and relates to the technical field of network communication. According to the method, an acceleration module located between a processor and an optical module is introduced to construct a collaborative architecture in which a high-speed bus and a low-speed bus are separated. In the configuration process, the acceleration module is responsible for tasks such as information reading, mode verification, parallel configuration and state monitoring of all optical modules related to the low-speed bus, and the processor performs instruction issuing and result receiving only through the high-speed bus without participating in time-consuming polling. According to the scheme, the processor is thoroughly decoupled from low-speed serial operation, computing resources are remarkably released, and meanwhile, the efficiency of optical module splitting configuration and the overall response speed of the system are greatly improved through parallel processing of the acceleration module.

A smart park system with hybrid networks based on 5G / 5G-A and IoT technologies is disclosed. The smart park system comprise: terminal device; a cloud network system, which include a 5G network and an all optical network; an IoT platform; an application platform; and an application service sub-system. The all optical network includes a core network switch, an optical line terminal OLT and an optical network unit ONU, wherein the OLT adopts a reverse feedback priority dynamic setting, in which the OLT sends a first data package via a first downlink channel, the OLT dynamically sets a priority of the first downlink channel from the OLT to the ONU according to a feedback for the first data package via a corresponding first uplink channel, and the OLT sends subsequent first data packages via the first downlink channel according to the set priority.

The application discloses an infrared touch frame optical network design method, and belongs to the technical field of infrared touch frames. The main technical scheme comprises the following steps: setting the positions of infrared emitters and infrared receivers, parameterizing the positions of the infrared emitters and the infrared receivers to obtain emission coordinates and receiving coordinates; taking the connecting lines between the emission coordinates and the receiving coordinates of each receiving light line of the emission coordinates as optical path straight lines, parameterizing each optical path straight line to obtain all optical path straight line equations; calculating the intersection point coordinates of all optical path straight line equations; constructing a polygonal area through the optical path straight line equations and the intersection point coordinates; hole determination: taking the polygonal area in which each side does not intersect with other optical path straight lines as a hole; and calculating the area of each hole. The application can ensure that the hole size of the infrared touch frame optical network meets the design requirements, avoid the poor touch response and the touch break phenomenon caused by the excessively large optical network hole, and thus avoid the waste of human cost caused by the rework after the optical network is drawn.

The application discloses a kind of laser shock peening and ultrasonic gradient stress detection integrated system and method, belong to high-end equipment manufacturing and surface engineering technical field.System includes multi-axis industrial robot, composite end effector, strengthening laser output head, laser ultrasonic excitation probe and control unit, laser ultrasonic excitation probe and laser ultrasonic receiving probe follow strengthening laser output head rear; Trigger strengthening and detection in the robot step gap, utilize the dispersion characteristics of wideband surface acoustic wave to retrieve the residual stress distribution of five characteristic gradient layers in surface layer to 1.5 mm Depth, and adjust laser energy or back sweep compensation with stress value of gradient layer as criterion to realize closed-loop regulation and control;Solve the problem of process and detection procedure fragmentation, deep stress unknown and unable to real-time closed-loop, realize in-situ detection, gradient stress quantitative analysis, adaptive compensation, full-optical non-contact adaptive complex surface and quality data traceability.