249 results about "Optical probing" patented technology

The invention relates to the field of electrophysiological catheters, in particular to a mapping and ablation system capable of detecting injury depth, which is characterized in that a tail end functional area is arranged at the far end of a catheter, and an electrode, a positioning sensor and an optical probe are arranged in the tail end functional area; the electrode is used for mapping and ablation; the positioning sensor comprises a coil structure; the optical probe is used for performing optical scanning on the contacted tissue. The ablation unit is communicated with the electrode and provides ablation energy for the electrode; the positioning unit is communicated with the catheter and is used for displaying the position and form of the tail end functional area and recognizing the deviation and rotation direction of the tail end functional area; the electrophysiology mapping unit is communicated with the electrode and acquires an electrophysiology signal through the electrode; the optical detection unit is connected with the optical probe through an optical fiber and used for optical coherence tomography; the impedance detection unit is communicated with the electrodes, impedance information of surrounding tissue under different frequencies is collected through the electrodes, and then the frequency response coefficient of the position where each electrode is located is solved and used for recognizing whether the electrodes make contact with the tissue or not.

The invention relates to the technical field of bus bar defect detection, in particular to a bus bar surface defect detection device which comprises a distance regulation and control mechanism, a tin supplementing mechanism installed on the distance regulation and control mechanism, a mirror image detection mechanism installed on the distance regulation and control mechanism and a boosting scraping mechanism installed in the mirror image detection mechanism. And the spacing regulation and control mechanism comprises a clamp, two rectangular sleeves mounted on the clamp, and two positioning pieces movably mounted in the two rectangular sleeves. A double-sided mirror image detection mechanism is provided for a bus bar body passing through a tin liquid pool, symmetric optical detection on the top surface and the bottom surface of the bus bar is utilized, once a tin layer on the surface of the bus bar has a bulge, an instruction of the mirror image detection mechanism is received, and then a motor is started through external control equipment; and the compression-resistant and slow-transmission bus bar can be scraped by the two scrapers, so that the device can be ensured to clean and trim the tin bar raised on the bus bar.

The invention belongs to the technical field of safety monitoring, and particularly relates to a liquid leakage detection alarm system based on optical detection and a method thereof. Comprising a plurality of liquid leakage monitoring alarm terminals, a plurality of portable comprehensive monitoring communication devices, a fixed comprehensive monitoring communication device, and necessary auxiliary devices such as a system server and a comprehensive alarm unit. The liquid leakage monitoring alarm terminal is internally provided with a liquid accumulation tank, and light emitted by a light emitting end in the liquid accumulation tank is received by a light receiving end. When a liquid leakage event occurs, leaked liquid flows into the liquid accumulation groove, the light receiving end cannot receive the light emitted by the emitting end, an output signal of the optical detection module changes, and the liquid leakage monitoring alarm terminal gives a liquid leakage sound-light alarm. And wireless signals are sent to the portable comprehensive monitoring communication machine and the fixed comprehensive monitoring communication machine to carry out remote alarm. The liquid leakage detector is suitable for leakage detection of all liquids, and has the outstanding advantages of simple structure, high reliability, high safety, high sensitivity, miniaturization, easy integration and the like.

Methods and systems are directed to protect a target logic circuit against optical probing attacks and conceal a logic state in the target logic circuit. The method comprises designing a concealing logic circuit. The concealing logic circuit can be coupled to complement of input signals of the target logic circuit, inserted as neighbor logic circuit of the target logic circuit, and placed in close optical proximity to the target logic circuit. The concealing logic circuit can operate in the opposite operation mode or logic state of the target logic circuit in response to the complement of the input signals to the target logic circuit. The method can further comprise designing an evaluation circuit that generates the complement of the input signals and minimizes a path delay between the target logic circuit input and the concealing logic circuit input.

The invention discloses an infrared long-distance spatial adjacent target super-resolution method, and the method comprises the steps: S1, analyzing the imaging characteristics of an optical detection system of a long-distance target and the imaging characteristics of multiple spatial adjacent targets, carrying out the imaging modeling of a point target, and generating a simulation image data set; s2, initializing an input simulation image based on linear mapping; s3, adopting a sparse reconstruction algorithm to realize infrared space adjacent target super-resolution modeling, and constructing a deep expansion network framework; s4, enabling the initialized image to sequentially pass through each stage of the deep expansion network; and S5, constructing a GPU training environment, setting a configuration file training model of a data loader, a model and an evaluator, applying the trained model to a test set, generating a high-resolution image, extracting target coordinate information through post-processing, inputting the target coordinate information into the evaluator, obtaining an evaluation index based on an infrared long-distance space adjacent target, and calculating an average detection rate.

The invention discloses a common-caliber receiving long-wave infrared and GM-APD laser composite long-distance imaging device, and relates to the technical field of long-distance laser three-dimensional imaging. The method is used for solving the problem that an existing composite detection technology does not have the long-distance detection capacity in a near space or an outer space. The long-wave infrared and GM-APD laser radar composite detection mode is adopted, long-distance target array imaging not lower than 97 Km is achieved, and the imaging frame frequency can reach 10 Hz. The method specifically comprises the following steps of: improving a situation awareness action distance by adopting long-wave infrared imaging detection, and realizing accurate measurement and tracking of a target in a middle-short distance by adopting a GM-APD laser imaging detection technology; through long-wave infrared / GM-APD laser common-path fusion optical detection technology research, optical-mechanical system optimization layout, multi-dimensional information fusion perception and accurate identification measurement are realized. The method can be used in composite imaging fields such as long-distance target detection and identification, airborne topographic surveying and mapping, satellite-borne ground detection and the like.

The invention relates to the technical field of water environment monitoring, and discloses a water environment monitoring device and a detection method thereof, the device comprises a floating seat and a telescopic structure, and the bottom of the floating seat is provided with a liftable monitoring mechanism through the telescopic structure. By means of lifting adjustment of the monitoring mechanism, lifting at different water depth positions can be achieved so as to meet the monitoring requirements for different depths of a water body; a water quality sensing structure is mounted in the connecting cylinder, and a sensing probe of the water quality sensing structure is positioned in the monitoring cylinder and cooperatively works with an optical sensing structure in the monitoring cylinder to monitor a water body flowing through the monitoring cylinder in real time; a rotating impeller in the monitoring cylinder is driven by rotation of the rotating impeller to drive a reciprocating scraper to reciprocate, so that a sensing probe of the water quality sensing structure is scraped and cleaned, and attached biological membranes or sediments are removed; and meanwhile, the impeller is rotated to drive the cleaning piece to clean the optical detection area of the optical sensing structure, so that the accuracy and definition of optical detection are ensured.

The invention relates to the technical field of optical detection, in particular to an asymmetric spherical cylindrical surface optical multi-pass cell and a calculation method thereof. The invention provides an asymmetric spherical and cylindrical surface optical multi-pass pool, which comprises a spherical reflector and a cylindrical reflector, and the spherical reflector and the cylindrical reflector are both concave reflection, are oppositely arranged and are coaxial; at least one of the two reflectors is provided with a light hole. According to the invention, Lissajous light spot pattern distribution can be realized without rotating the reflector, the utilization rate of the mirror surface is high, and long optical path can be realized. And the relative rotation angle of the two reflectors in the optical axis direction can be kept, the stability of light spot patterns is guaranteed, namely the stability of the light reflection and propagation space path is guaranteed, and therefore the light absorption efficiency is improved.

The invention discloses a wafer high-precision alignment mechanism, and relates to the technical field of semiconductor manufacturing and packaging, the wafer high-precision alignment mechanism comprises a casing and a vertical box integrally and fixedly connected to the upper part of the rear side of the casing, a cantilever is fixedly connected to the center of the upper part of the front side of the vertical box, and a detection mechanism for performing optical detection on a wafer is arranged between the cantilever and the upper wall of the casing. A circular movable hole is formed in the upper wall of the machine shell, the central axis of the movable hole is located on the central axis face of the cantilever, and an alignment mechanism used for adjusting the position of the wafer is arranged in the movable hole. By arranging the cleaning assembly and adopting a closed-loop design combining blowing and suction, the invention has the following remarkable beneficial effects: firstly, the structure forms an air curtain barrier with directional flow through the synergistic effect of positive-pressure blowing and negative-pressure suction, not only can dust on the mirror surface of the optical probe be continuously removed, but also pollutants can be actively discharged from the inside of equipment, so that the cleaning efficiency is greatly improved; the secondary pollution is fundamentally avoided, and the thoroughness and reliability of cleaning are greatly improved.

The invention discloses a day and night detection method and system based on a laser transparent window, and relates to the technical field of optical detection, and the method comprises the following steps: 1, transmitting a laser beam through a laser radar, transmitting the laser beam through the transparent window, and building an exponential decay model of the laser beam to quantitatively describe the influence of the transparent window; according to the method, the exponential decay model of the laser beam is established, the influence of the transparent window on the laser beam is quantitatively described, the actual wavefront phase is monitored in real time through the radar wavefront sensor and compared with the ideal wavefront, wavefront distortion can be rapidly recognized, beam distortion caused by wavefront distortion is reduced, and the accuracy of wavefront distortion detection is improved. A self-adaptive optical correction model is introduced, so that the system can dynamically adjust a deformable mirror according to wavefront distortion monitored in real time, the wavefront distortion of a laser beam is corrected, and efficient target detection and classification can be realized in a complex environment by effectively mapping an intensity label of a reflected beam and a category label of target characteristics.

The embodiment of the invention provides a small target dynamic anti-interference identification method and system based on standard-loaded multi-sensor fusion, and the method comprises the steps: collecting multi-source data of a port channel through a standard-loaded optical detection terminal, a millimeter-wave radar and an AIS device; performing visual enhancement and radar anti-interference processing on the multi-source data, and extracting a small target recognition result based on the image and the radar; aligning a multi-source identification result with AIS data under a unified space-time reference, and completing multi-source data trajectory association at an edge computing node by adopting a joint probability data interconnection algorithm optimized by a mahalanobis distance; and predicting the target trajectory at the cloud and feeding back the target trajectory to the edge node for optimization association, and integrating a result to output a small target dynamic identification and tracking result. According to the method, through cooperative processing of visual enhancement and radar anti-interference, and in combination with a cloud-side cooperative fusion architecture, the accuracy and robustness of small target identification in a low visual environment are effectively improved, and the problems of missing detection and false detection of a traditional single sensor in a complex scene are solved.

The invention discloses a microwave and optics combined wind profile detection system, which relates to the technical field of meteorology and integrates a laser probe of a laser radar subsystem in the center of a microwave antenna array plane of a wind profile radar subsystem. The electric scanning center of the wind profile radar subsystem and the optical detection center of the laser radar subsystem are enabled to coincide, and the comprehensive processing subsystem is utilized to realize unified scheduling of the two subsystems so as to guarantee the synchronism of the two subsystems. The comprehensive processing subsystem is used for carrying out data quality analysis and data analysis control on the radial speed data obtained by the two subsystems so as to realize data fusion, and fused radial speed data is obtained. Therefore, the wind profile radar subsystem and the laser radar subsystem are integrated together to realize wind profile combined application detection, and respective detection characteristics of the wind profile radar and the laser radar can be effectively combined, so that the wind profile detection precision and accuracy are improved.

The invention relates to a method for establishing a spectrum library, a method and device for monitoring thickness and polishing equipment. The method for establishing the spectrum library comprises the following steps: acquiring an actually measured energy reflectivity spectrum of a sample wafer based on an optical detection module, acquiring a first electric field reflectivity of incident light of the optical detection module on an interface between the grinding liquid and a first grinding layer of the target sample wafer and a second electric field reflectivity of the incident light on an interface between the first grinding layer and a first substrate layer of the target sample wafer; based on the first electric field reflectivity, the second electric field reflectivity, the wavelength of the incident light, the refractive index of the incident light on the grinding layer and the thickness of the grinding layer, establishing a theoretical total electric field reflectivity model; obtaining a theoretical energy reflectivity model based on the theoretical total electric field reflectivity model; based on the theoretical energy reflectivity model, theoretical energy reflectivity spectrums corresponding to different grinding layer thicknesses are calculated to generate a spectrum library. According to the invention, the efficiency of establishing the spectrum library can be improved, and meanwhile, a finer spectrum library can be obtained.

The invention discloses a submarine cable detection and inspection method and system based on optomagnetic fusion. The method comprises the following steps: S1, respectively acquiring magnetic detection data and optical detection data through a magnetic sensing module and a camera module; s2, a data resolving transmission module establishes an identification framework for the preprocessed detection data and generates a result set; the data resolving and transmitting module performs probability assignment on the two identification frameworks according to a D-S evidence theory method, and confidence intervals are obtained respectively; the data resolving and transmitting module calculates the similarity between the two pieces of evidence, and if the similarity is lower than a preset threshold value, the result set is updated; s3, the data resolving and transmitting module fuzzifies the confidence interval and the result set according to a preset fuzzy rule to obtain a fuzzy set and confidence coefficients of the two kinds of detection data; and S4, a data solution transmission module carries out data fusion according to the confidence coefficients of the two kinds of detection data to obtain a final detection result. According to the invention, seamless integration of two kinds of data is realized, and the detection precision and efficiency are significantly improved.

The invention discloses a rapid quantum magnetic measurement method and device based on multilayer sensing, and relates to the field of electrical quantum sensing. Comprising the steps of constructing a to-be-trained mixed distribution function model and a training set thereof; based on the training set, training the to-be-trained mixed distribution function model to obtain a mixed distribution function model; performing microwave frequency conversion scanning in a preset microwave frequency sweeping range, recording diamond NV color center fluorescence intensities corresponding to different microwave frequencies, and recording a point between a falling edge point of a peak deviating from the fluorescence intensity for the first time and a rising edge point of a valley deviating from the fluorescence intensity for the first time as an effective point; based on the microwave frequency value corresponding to the effective point and the mixed distribution function model, fitting to obtain a mixed distribution function of the to-be-measured magnetic field; and obtaining a frequency value of a trough position in the mixed distribution function of the to-be-measured magnetic field, and calculating the to-be-measured magnetic field intensity. The problem that the sampling rate of an existing optical detection magnetic resonance technology cannot meet the requirement of a power system for the high sampling rate is solved.

The invention provides an inertial navigation aided navigation positioning method and system, and the method comprises the steps: calculating the coordinate of each navigation satellite in an ECEF coordinate system according to the satellite ephemeris of a satellite navigation system; according to the navigation satellite coordinate and the inertial navigation system positioning result, the azimuth angle and the pitch angle of the navigation satellite relative to the optical detection equipment under the ENU coordinate system are solved, and the navigation satellite is tracked; acquiring star maps collected by the optical detection equipment, matching the star maps through a star map recognition algorithm, resolving a coordinate transformation matrix between two continuous frames of star maps, and recognizing fixed stars and satellites in the star maps based on the transformation matrix; converting the identified fixed star in the field of view into an ECEF coordinate system, calculating an observation angular distance between the fixed star and the satellite, and calculating a satellite observation vector in the ECEF coordinate system according to the observation angular distance; and performing error correction on the positioning result of the inertial navigation system based on the satellite observation vector. Through the scheme, the positioning precision of the inertial navigation system can be improved, and the influence of interference deception signals is reduced.

The invention discloses an anti-strong-light polarization detection analysis device and method based on dual polarization modulation, and relates to the field of optical detection, and the device comprises a dual polarization modulation imaging system and an analysis system. The dual-polarization modulation imaging system is arranged on a light path where a measured target is located, and the dual-polarization modulation imaging system is connected with the analysis system; the dual-polarization modulation imaging system is used for acquiring to-be-modulated light rays of a detected target received from different detection angles, performing rotation polarization filtering on the to-be-modulated light rays of the detected target at different detection angles twice, and acquiring to-be-analyzed data at different detection angles; the analysis system is used for analyzing and screening the to-be-analyzed data at different detection angles to obtain a target image; according to the invention, effective inhibition of strong light is realized through the dual-polarization modulation imaging system, the analysis system analyzes and screens the images after dual-polarization filtering at different detection angles, a high-quality target image is obtained, and the accuracy and reliability of a detection result are improved.

The invention discloses a fusion test system and test method of a laser radar component, and relates to the technical field of laser radars, the system comprises a data mobile acquisition platform and a test data analysis terminal; the data mobile acquisition platform comprises optical detection equipment and a signal processing card; the data mobile acquisition platform is connected with the test data analysis terminal; wherein the data mobile acquisition platform is used for being in butt joint with a to-be-tested laser radar component; the optical detection equipment is used for carrying out optical test on the to-be-tested laser radar component to obtain optical test data; the signal processing card is used for carrying out an electrical test on the to-be-tested laser radar component to obtain electrical test data; and the test data analysis terminal is used for performing analysis according to the optical test data and the electrical test data. According to the invention, optical test data and electrical test data are simultaneously acquired through the data mobile acquisition platform, so that the test of the laser radar component is realized.

The invention discloses a low-altitude conduction air monitoring anti-fusion perception and control method and system, and belongs to the technical field of target detection and tracking, and the method comprises the steps: obtaining the active position report information of an aircraft, obtaining an active detection data set, carrying out the time-space correlation matching, and generating a to-be-recognized target set; calling high-definition optical detection equipment to track a target, fusing pre-acquired real-time meteorological environment data to enhance the tracking process, generating enhanced target feature data to perform target attribute recognition, and when a target attribute recognition result is an illegal target, performing target attribute recognition by combining the real-time meteorological environment data and a preset knockdown area. And generating a self-adaptive countering decision instruction, and driving countering equipment to execute countering operation. According to the method, the active report information and the active detection data are fused to identify the target, and the real-time meteorological data are combined to carry out feature enhancement and self-adaptive countering decision means, so that the low-altitude illegal target can be identified and handled in an all-weather and high-precision manner.

The application discloses an infrared long-distance space adjacent target super-resolution method, wherein the method comprises the following steps: S1, analyzing the imaging characteristics of a long-distance target optical detection system and the imaging characteristics of space adjacent multiple targets, modeling point target imaging, and generating a simulation image dataset; S2, initializing the input simulation image based on linear mapping; S3, realizing infrared space adjacent target super-resolution modeling by adopting a sparse reconstruction algorithm, and constructing a deep unfolding network framework; S4, sequentially passing the initialized image through each stage of the deep unfolding network; S5, constructing a GPU training environment, setting a data loader, a model and an evaluator configuration file, training the model, applying the trained model to a test set, generating a high-resolution image, extracting target coordinate information by post-processing and inputting the target coordinate information into the evaluator, obtaining evaluation indexes based on infrared long-distance space adjacent targets, and calculating an average detection rate.

An optical detection device with a protection function comprises a main control unit which is in communication connection with an optical detection module and an unmanned aerial vehicle deployment unit, and the main control unit is configured to process and display target information and receive a control instruction; dynamic parameters of an external target are obtained through an optical detection module, and an unmanned aerial vehicle interception instruction is generated; the optical detection module is configured to actively scan a target area and obtain space parameters of a target; the light beam guiding mechanism is used for dynamically adjusting the laser emission direction and the optical imaging view field. The unmanned aerial vehicle deployment unit comprises an unmanned aerial vehicle storage mechanism and a launching mechanism; and the communication module realizes real-time data interaction between the main control unit and the unmanned aerial vehicle. According to the device, on the basis of the function of detecting and tracking multiple targets at the same time, the unmanned aerial vehicles are launched through the unmanned aerial vehicle storage unit, and the multiple unmanned aerial vehicles can be guided to track and strike multiple flying targets.

The invention relates to the technical field of optical detection, in particular to a photoelectric pod multi-optical-axis consistency detection device and method and a calibration method. A photoelectric pod multi-optical-axis consistency detection device comprises a detector, a two-dimensional displacement table, a first spectroscope, a second spectroscope, a first lens cone, a second lens cone, a cross target and a collimator. The collimator, the first lens cone and the detector are connected in sequence; in the first lens barrel, a second spectroscope is mounted at the end close to the detector, and a first spectroscope is mounted at the end close to the collimator, so that the pod to be detected is in light path connection with the second spectroscope; the outer wall of the first lens cone close to the collimator is connected with one end of the second lens cone through a pipeline; wherein the cross target is provided with a light source; the outer wall of the first lens barrel close to the detector end is connected with the two-dimensional displacement table. According to the invention, software compensation after measurement of deviation angles of the visible detector, the infrared detector and each optical axis of laser is realized, the dependence on a high-precision mechanical structure is reduced, and the manufacturing cost is reduced.

The acousto-optic combined underwater target autonomous searching and positioning method comprises the following steps: establishing an underwater target searching platform based on an underwater unmanned vehicle; pre-establishing an underwater target detection model on the underwater target searching platform; inputting a given target type, a task area and a target quantity into a task decision system; the task decision-making system firstly identifies information transmitted from the sonar system; the task decision system identifies information transmitted from the optical camera system; the task decision-making system judges the suspicious target object; the underwater unmanned vehicle continues to search or return voyage on the given target type, task area and target number, or acousto-optic combination is carried out in a return voyage target detection mode, and sonar detection and optical detection are combined far and near, and large-range preliminary screening and approaching recognition confirmation are combined; the underwater target searching efficiency is improved, the detection and discovery capability is also improved, and the problems of low searching efficiency, difficult positioning and the like are solved.

The invention provides an inter-satellite laser communication system based on visual positioning assisted link establishment and a link establishment method. The system comprises a laser communication machine which comprises a processor and an optical head and is used for realizing laser link establishment and laser communication; the optical detection camera, the rotary table and the sensing positioning module form a visual positioning subsystem which is used for observing and positioning a passive end target, namely a communication opposite end satellite; the measurement and control data transmission module is used for receiving data and instructions from the ground and sending satellite telemetry data; and the satellite service management module is used for realizing task management and control management of a load single machine. The inter-satellite laser communication link establishment method is suitable for inter-satellite laser communication link establishment of satellites in orbit, especially inter-satellite laser communication link establishment in under-communication and high-dynamic scenes. By using visual positioning assistance, the dependence on a ground station and external data can be reduced, the laser link establishment time is shortened, the use scene is expanded, and the stability and robustness of a satellite laser communication system are enhanced.

The invention relates to the technical field of atmospheric environment monitoring and optical detection, in particular to an aerosol vertical profile correction method and device for aerosol scattering coefficient and laser radar combined observation, and the method comprises the steps: S1, collecting echoes according to an integral window, and obtaining distance correction echoes; s2, collecting a height scattering coefficient greater than or equal to 2, and aligning the height scattering coefficient with a distance correction echo grid / time; s3, background deduction, resolution matching and invalid height elimination are carried out to obtain preprocessed echoes; s4, generating an initial scattering coefficient profile; s5, identifying layered boundary division layer intervals; s6, establishing a correction factor model for each layer, adding overlap compensation to the near earth, and introducing a system constant; s7, taking the consistency of the total height of the theoretical echo and the preprocessed echo as a target, taking the consistency of multi-height scattering coefficients as a constraint, and carrying out joint solving to obtain correction factor distribution; and S8, outputting a correction profile, boundary information and a parameter set. According to the method, system constants and overlap compensation are solved by preprocessing echo layering scale gradient correction factors through combination of full-height consistency and two-height actual measurement constraints, and a correction profile is stabilized.

The invention relates to an optical detection image fixed star discrimination method based on dimension transformation, and the method comprises the following steps: obtaining an optical detection image at a moment k, and determining a three-dimensional pointing position of a target in a sensor coordinate system; based on the three-dimensional pointing position of the target in the sensor coordinate system, determining the three-dimensional pointing position of the target in the orbital coordinate system; based on the three-dimensional pointing position of the target in the orbital coordinate system, determining the three-dimensional pointing position of the target in the earth inertial coordinate system; repeating the steps to obtain the three-dimensional pointing position of the target in the earth inertial coordinate system at the sequence moments of k + 1, k + 2...; and judging whether the target is a fixed star or not based on the three-dimensional pointing positions of the target in the earth inertial coordinate system at the multiple moments. According to the method, the fixed star track can be effectively judged under the condition of no fixed star catalogue.

The application discloses an intelligent early warning method and system based on multi-source data fusion, relates to the technical field of early warning management, and comprises the following steps: acquiring hydrological time sequence data, underwater acoustic voice time sequence data and optical detection time sequence data of a target monitoring area, and generating a first trigger signal; in response to the first trigger signal, obtaining preliminary judgment attribute data and sound source positioning data; based on the sound source positioning data, acquiring updated image data sequence and updated turbidity data sequence; comparing the updated turbidity data sequence with a first turbidity threshold, and determining a target detection path from a plurality of preset detection paths according to a comparison result; correlatively analyzing first fine detection data or second fine detection data with real-time updated hydrological time sequence data, and generating trend deduction data; and based on the first fine detection data or the second fine detection data and the trend deduction data, generating hierarchical early warning result data and outputting the same. The application has the effect of improving early warning efficiency.

The invention provides a coordinate conversion circuit and method, the method is applied to the laser radar technology field, the circuit comprises at least one coordinate conversion module, and the coordinate conversion module comprises a control module and a data processing module; the control module is connected with the optical detection module, and the data processing module is connected with the control module; the optical detection module is used for acquiring scanning coordinates and detection distances of detection points in the operation process; the control module is used for receiving the operation trigger signal and the scanning coordinate and the detection distance of the detection point sent by the optical detection module; and under the condition that the operation trigger signal is received, the control module sends the scanning coordinate and the detection distance to the data processing module, and controls the data processing module to determine the radar coordinate of the detection point based on the scanning coordinate and the detection distance. According to the circuit, scanning coordinates can be converted into radar coordinates through a hardware module, occupation of processor resources is reduced, the requirement for the computing power of a processor is low, and point cloud output delay is effectively avoided.

The invention relates to a small hybrid coagulated particle counter and a working method thereof. The condensed particle counter comprises a particulate matter adjusting unit, a hot steam saturation unit, a particulate matter and steam mixing unit, a particulate matter growth unit, an optical detection unit and a signal processing and control unit. To-be-detected ultrafine particles pass through the particle adjusting unit for adjusting the flow rate and reducing the temperature, are fully mixed with alcohol steam flowing into the hot steam saturation unit in the particle and steam mixing unit, and then absorb moisture in the particle growth unit to increase to an optically detectable size; and the measured diameter of the particulate matter is converted into an optical pulse signal by the optical detection unit, so that the number concentration of the to-be-measured ultrafine particulate matter is obtained. The device has the advantages of fast and sufficient mixing speed of particulate matters and hot steam, small particulate matter loss and the like, and has good performance in the aspects of dynamic detection, high-flow-speed operation and extremely-small-particle-size particulate matter capture while reducing the equipment volume and realizing portability.

The invention discloses an optical-ultrahigh frequency combined sensing GIS partial discharge monitoring system and method. The system comprises an ultrahigh frequency detection unit, an optical detection unit and a signal composite output unit, wherein the ultrahigh frequency detection unit and the optical detection unit are arranged in parallel; the ultrahigh-frequency detection unit is used for detecting ultrahigh-frequency electromagnetic signals in the GIS cavity; the optical detection unit comprises a large-view-field optical lens, an optical conduction assembly and a photoelectric converter which are connected in sequence; the large-view-field optical lens is formed by combining a plurality of aspherical lenses, and the large-view-field optical lens is used for converging optical signals in the GIS cavity; the optical conduction assembly comprises an optical fiber bundle which is used for receiving and conducting optical signals; the photoelectric converter comprises a silicon photomultiplier tube or a photomultiplier tube, and is used for converting a weak optical signal into an electric signal; the signal composite output unit is respectively connected with the ultrahigh frequency detection unit and the optical detection unit, and the signal composite output unit is used for outputting signals of the ultrahigh frequency detection unit and the optical detection unit.