83 results about "Point detector" patented technology

The invention discloses an urban tunnel intelligent safety operation and maintenance method and system combined with multiple data, particularly relates to the field of intelligent traffic operation and maintenance, and is used for solving the problems of prediction deviation and congestion management caused by tunnel flow fluctuation. In combination with traffic parameters of a multi-point detector, a wave similarity analysis model is utilized to accurately evaluate a propagation path and a target section of fluctuation; meanwhile, by means of a time sequence superposition correction mechanism, a historical fluctuation rule and real-time data are fused, a traffic flow transmission prediction curve after dynamic correction is generated, and balance between physical constraint and prediction precision is achieved; finally, key indexes are output through dynamic updating of the flow prediction model, efficient linkage of signal coordination and induction management and control modules is guided, congestion accumulation and traffic risks caused by fluctuation propagation can be reduced to the maximum extent, the tunnel operation and maintenance efficiency is optimized, and the traffic safety guarantee capacity is enhanced.

An electrode manufacturing apparatus according to one aspect of the present disclosure is configured to discharge a liquid to form a resin layer or an inorganic layer on an electrode substrate which is being conveyed in a predetermined direction. The electrode manufacturing apparatus includes a detector, a liquid discharger provided downstream of the detector in the predetermined direction and configured to discharge the liquid to form the resin layer or the inorganic layer, and a controller configured to control a discharge condition of the liquid discharger. Points where a property varies are present on the electrode substrate along a direction intersecting the predetermined direction. The detector outputs pieces of detection information obtained by detecting one of the points in time series, and the controller controls the discharge condition of the liquid discharger based on combined detection information obtained by combining the pieces of detection information.

The invention relates to a super-resolution fluorescence lifetime microscopic imaging method and system based on pixel relocation. The method comprises the following steps: S1, carrying out multi-focus parallel scanning on a sample by using an acousto-optic deflector; s2, synchronously collecting a fluorescence intensity image and fluorescence lifetime data through an area array detector and a point detector; and S3, carrying out super-resolution reconstruction on the fluorescence intensity image based on a pixel relocation algorithm, and mapping fluorescence lifetime data to a reconstructed image to generate a super-resolution fluorescence lifetime microscopic image. According to the invention, an AOD is adopted to replace a scanning galvanometer in a traditional TCSPC-FLIM imaging system as a light beam scanner; addressing scanning of AOD, image acquisition of EMCCD and life data acquisition of PMT and TCSPC cards are closely linked by combining well-designed multiple paths of synchronizing signals, and fluorescence life data are distributed to each dot matrix through a later data processing method, so that organic combination of super-resolution and FLIM can be realized without complicated equipment, and SR-FLIM images of samples are obtained.

The invention discloses a DCS system IO module channel testing device, and relates to the technical field of industrial automation equipment detection. The device comprises an IO module point inspection instrument and an upper computer, the IO module point inspection instrument is in communication connection with the upper computer, a plurality of sets of independent test modules capable of running in parallel are arranged in the IO module point inspection instrument, and each test module comprises a controller, an excitation source circuit, a signal acquisition circuit and a matrix switch circuit and corresponds to one slot. And the test module establishes a signal path with the IO module connected to the slot through the matrix switch circuit. Wherein a controller in the test module can automatically identify the type of the IO module to be tested, dynamically configure an excitation source circuit and a signal acquisition circuit which are matched with the IO module to be tested, and realize automatic and high-precision detection of various types of IO modules. According to the device, the point inspection efficiency of the IO module of the DCS system can be greatly improved by integrating a multi-channel signal output function and a signal detection function.

A parking assistance apparatus includes: an image acquirer that acquires a camera image; a feature point detector that extracts feature points from the camera image; a feature point selector that selects a feature point to be registered on a map by evaluating the feature points in learning travel and a parking route and a parking position of the vehicle are registered on the map; and a vehicle controller that parks the vehicle based on the map, in which the feature point selector varies a priority for registration of the feature points or the number of feature points for registration in accordance with a position on the parking route, or selects, at the position on the parking route, the feature point to be registered on the map, based on a position of the camera or a relative position of the feature point with respect to an optical axis direction.

The invention relates to a narrow linewidth laser linewidth detection system based on spectrum reconstruction. The narrow linewidth laser linewidth detection system comprises a beam expanding collimation unit, an N-step etalon frequency discrimination unit, a beam splitting focusing unit, N point detectors and a multi-channel acquisition and data processing unit. The beam expanding and collimating unit is used for carrying out light beam collimation on incident measured laser, the N-step etalon frequency discrimination unit comprises N F-P cavities which are spliced into a multi-step etalon with a circular clear aperture, and the F-P cavities are used for respectively gating different spectral ranges of the measured laser and outputting parallel light with different energies. The beam splitting and focusing unit focuses the parallel light output by the N F-P cavities to the light sensing surfaces of the N point detectors respectively, and electric signals are formed through photoelectric conversion. And the multi-channel acquisition and data processing unit obtains a power measured value IM of each point detector, and calculates a power theoretical calculation value IjM of the N point detectors at the same time, thereby obtaining a line width value sigma of the measured single-frequency narrow-line-width laser. According to the invention, the problem that the 3dB bandwidth is difficult to directly read due to insufficient distinguishing capability of the existing frequency discriminator is solved.

The invention provides a transformer substation background data validity test method. The method comprises the following steps: firstly, acquiring model data, establishing a measuring point index and replacing an enabling index through a first terminal, namely a point detector, at the front end, pulling a database file and a picture file through a second terminal, namely a monitoring background, analyzing the database file and the picture file, and verifying the consistency of the model, so as to confirm the data consistency condition and the enabling attribute condition; substation background data validity checking is completed by replacing data checking of files and data messages, so that the automation level of the checking process is improved, and then the efficiency and validity of substation database data checking are improved; and the corresponding file retaining report is generated in the inspection process, and the inspection process of monitoring the data validity in real time can be realized, so that the timeliness of the substation background data validity inspection is improved.

The invention relates to the technical field of infrared temperature measurement, and particularly discloses an infrared radiation temperature measurement system based on a point detector, which is used for solving the problems that in a 200-1200 DEG C heating furnace, infrared temperature measurement of an existing point detector cannot dynamically select a point detector and a filtering wave band along with the state of a hearth, accurate measurement, quick response and long-term calibration of a wide temperature region are difficult to meet at the same time, and the accuracy of temperature measurement is low. The device comprises an optical platform, an optical path switching unit is arranged on the optical platform, the optical path switching unit is connected with a plurality of optical inlets, the optical inlets are converged to a main optical axis, and a dynamic narrow-band filter and a point detector selection module are sequentially arranged on the main optical axis; through adaptive selection of the dynamic filtering wave band and the point detector, multi-spectrum fusion inversion and an online self-calibration mechanism, the temperature measurement error and drift are reduced under the conditions of wide temperature range, high flue gas interference and long-term continuous operation, and the precision, response speed and reliability of temperature measurement of the heating furnace are improved.

The invention relates to a high-resolution liquid drop light splitting spectrometer, relates to the technical field of spectrometers, and solves the technical problem that a spectrometer in the prior art is difficult to realize low-cost and high-precision spectrum detection. The high-resolution liquid drop spectrophotometer comprises a lens coupling system, an optical fiber, a diaphragm, a liquid carrying sheet, a point detector and a signal acquisition and processing unit, a liquid drop generation device is arranged near the liquid carrying sheet and is used for accurately controlling the volume and the generation frequency of liquid drops generated on the liquid carrying sheet. The high-resolution liquid drop spectrophotometer is suitable for application occasions with strict requirements on cost and high resolution, such as the fields of biomedical detection, environmental monitoring, material analysis and the like.

The application provides a face key point detector domain self-adaption method based on spatial deformation, which is used for realizing generalization of face key point detection, and comprises the following steps: preparing a source domain data pair and a target domain data; setting an iteration number and an updating frequency of alternating optimization; training by using the source domain data pair to obtain a pre-trained face key point detector on the source domain; performing iteration, and in each iteration, a face transformer and a face key point detector are sequentially optimized and updated, and the face transformer is embedded with the same face key point detector; and outputting the face key point detector obtained through the last training. According to the technical scheme of the application, the generalization problem of the face key point detection model on the target domain and more unseen domains can be overcome, and the data distribution of the target domain can be better adapted.

The present application discloses a laser radar and a method for obtaining characteristic information, which belongs to the field of laser detection technology. Among them, the laser radar includes: at least two single-point emitters, at least two single-point detectors and at least one first beam splitter prism, at least one first beam splitter prism includes at least two light-emitting directions; each of the at least two light-emitting directions corresponds to at least one single-point detector, and at least two single-point emitters correspond one-to-one to at least two single-point detectors. The laser radar provided by the present application, by setting at least one first beam splitter prism, allows at least two light-emitting directions to correspond to at least one single-point detector, which is conducive to reducing the size of the laser radar and enhancing the applicability of the laser radar.

The application discloses a kind of mid-infrared discrete time stretching spectrum method, its characteristics are as follows:1) prepare the double-color pulse light source with slightly different repetition frequency;2) the pulse of pulse light source 1 is output wavelength broadening and time stretching for the signal light of nonlinear difference frequency, and the pulse of pulse light source 2 is output power amplification, for the pump light of nonlinear difference frequency;3) the time-domain broadening spectrum optical sampling of signal light by pump light pulse, obtain the pulse sequence of mid-infrared discrete time stretching;4) mid-infrared discrete chirp pulse is measured through low bandwidth mid-infrared detector after passing through the sample to be measured, and absorption spectrum information is obtained.The application has the advantages of wide band, high speed and high resolution compared with prior art, and the measurement of mid-infrared spectrum is completed by means of low bandwidth single-point detector, without dispersion spectrometer element and mechanical scanning device, which solves the problem of lack of time and high dispersion time-domain stretching medium in mid-infrared band, and expands the application of time stretching technology in mid-infrared band.

The present invention provides a fatigue driving behavior recognition method for 3D point cloud image data. First, collect 3D point cloud image video frames as the images to be processed; then, use the point-voxel fusion transformation network PVFTN to process the images to be processed to obtain the driver's face region feature image. The point-voxel fusion transformation network PVFTN includes three PVF modules, and the PVF module includes a point-voxel branch and a voxel branch; then use the multi-scale facial key point detector MSFLD to process the face region feature image to obtain the coordinates of 23 key points per frame; then calculate the aspect ratios of the left eye, right eye and mouth, and update the face fatigue parameter matrix; finally, use a method combining a statistical threshold and an adaptive threshold for judgment to obtain the judgment result of the driver's driving state, thereby realizing the judgment of the fatigue driving state of the driver in the motion state.

The invention relates to the technical field of infrared image processing, and discloses an infrared image feature extraction method, device and equipment and a storage medium, and the method comprises the steps: receiving a target infrared image; inputting the infrared image into a feature coding model, extracting feature points by using a feature point detector, and extracting descriptors by using a feature descriptor encoder; wherein the feature coding model is obtained by performing first joint training on an initial feature point detector and an initial feature descriptor encoder based on a preset image feature point data set and then performing second joint training on the feature point detector and the feature descriptor encoder after the first joint training based on an infrared image data set; the preset image feature point data set is constructed according to preset shape element images and corresponding feature point true values; the infrared image data set is constructed according to a preset infrared image. By applying the technical scheme of the invention, the recognition precision of the feature points and the feature descriptors in the infrared image can be improved.

Different from a single-point detector which can only measure one position, the test tool for electric field distribution test verification provided by the utility model has the advantages that the area array photoelectric detector is integrated with a plurality of photoelectric detectors and a plurality of output channels, so that multi-point simultaneous measurement can be carried out on an electric field in insulating oil; the electric field intensity of the insulating oil can be better represented through the electric field intensity of each detection point, the measurement result is more accurate and reliable, and meanwhile, the whole process of generation, movement and convergence of interface charges can be observed; besides, the photoelectric detectors have the same linear responsivity, and test verification is performed through the shockproof optical platform, so that mutual electromagnetic coupling is avoided, noise interference is also considered, and good test precision is ensured while the test efficiency is improved.

1. The name of the design product: infrared imaging node detector. 2. The use of the design product: for electronic semiconductor equipment, metal oxide and rust degree detection. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

A switching apparatus comprising a point detector connecting rod connected at one end to a switch machine and to at least one point at the opposite end. The point detector connecting rod is attached to the point via an angled block that permits a sliding motion relative to the point.

The application discloses a deep fake detection method based on face geometric relation reasoning, relates to the field of video passive forensics, and is used for improving the generalization ability of a deep fake detection model. First, a face feature point detector is used to detect face key point features, and an explicit face geometric relation graph is constructed according to the internal facial feature structure; a global feature extractor is constructed by using a Transformer to obtain a global feature map of a face image; on the basis of the global feature map of the face, a high-information-area positioning mechanism is positioned by using a self-supervised learning mechanism, and an implicit face geometric relation graph is constructed; a face internal geometric relation reasoning module is constructed by using a graph convolutional neural network, the explicit and implicit face geometric relation graphs are combined in features, and fake detection is performed on a video frame to be tested. The application can effectively improve the accuracy of face deep fake video detection, has good model generalization performance under different data domains, and has practical value.

The present invention relates to the technical field of intelligent inspection equipment, and discloses an electromechanical-hydraulic intelligent dynamic inspection platform, which includes a workbench. An equipment box is provided at the bottom of the workbench. The upper end of a rotating member is movably connected to a connecting rod, and the lower end of the connecting rod is movably connected to a pushing block. One end of the pushing block away from the connecting rod is fixedly connected to a connecting column, and a point detector is movably installed at one end of the connecting column away from the pushing block. A vibration meter is fixedly connected to the upper surface of the sliding block. The inspection platform includes mechanical inspection, hydraulic inspection, pneumatic inspection, electrical inspection, instrument type, and PLC process control. When the inspection platform is in use, the connecting rod drives the point detector to move through the connecting column, and the lower part of the point detector drives the vibration meter to move together, so that the point detector and the vibration meter move to the outside of the object to be detected for inspection. Both the vibration meter and the point detector can be disassembled and other test devices can be installed, which not only improves the working efficiency of the inspection platform but also greatly speeds up the progress of the inspection work.

The application discloses an online counter electromotive force zero point detection device, which comprises a base, a first device, a second device, a counter electromotive force zero point detector and a multi-gear electric drive assembly controller. The first device is used for positioning, lifting, automatic oil injection and extraction and weighing of a tray and the multi-gear electric drive assembly. The second device is used for clamping the multi-gear electric drive assembly on the first device, and is used for butt joint with a spline shaft extended from the multi-gear electric drive assembly and butt joint with three-phase copper bars on the multi-gear electric drive assembly. The counter electromotive force zero point detector is used for detecting counter electromotive force and zero point of the multi-gear electric drive assembly. The multi-gear electric drive assembly controller is connected with the multi-gear electric drive assembly and is used for controlling the work of an oil pump and gear shifting operation in the multi-gear electric drive assembly. The use of the device greatly improves the detection efficiency of the counter electromotive force zero point detection on the multi-gear electric drive assembly assembly line, optimizes the detection process, and greatly improves the reliability of the detection.

The utility model discloses an ultrasonic leakage point detection device for a waste heat supply pipe network, which comprises a safety helmet, and an ultrasonic leakage point detector is arranged on the safety helmet. The ultrasonic leakage point detector is connected with an earphone, a connecting rod is connected to the front of the ultrasonic leakage point detector, and the connecting rod is connected with a display screen; the ultrasonic leakage point detector is connected with a detection handle through a wire, a detection probe is arranged at the end of the detection handle, and marking mechanisms arranged in parallel are installed on the detection probe. The pen has the advantages of being simple in structure, convenient to use and capable of marking positions.

The invention discloses an underwater environment autonomous exploration method, device and system, and a storage medium, and the method comprises the steps: S1, constructing a random tree in an occupation grid map constructed by an underwater vehicle through a multi-beam sonar through a boundary point detector, so as to search a boundary point; s2, clustering the detected boundary points through a filter; and S3, the clustered boundary points are evaluated through a utility function and are allocated to the aircraft, and the aircraft starts to move towards the boundary points for exploration. By adopting the technical scheme of the invention, the problems that an omnidirectional method is easy to stop in an underwater environment and the exploration efficiency is low are solved.

1. Name of the product in this design: CO2 two-phase absorbent phase separation point detector. 2. Purpose of this design: To determine the phase separation point of the two-phase absorber after absorbing CO₂ by using infrared detection to capture CO₂ and trigger the liquid-liquid phase transition mechanism. Application areas and locations: Used for capacity monitoring of two-phase absorbents for capturing CO₂ in flue gas in coal-fired power plants, steel plants, and cement plants. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a broadband spectrum microscopic system based on Fourier single-pixel simultaneous imaging, and relates to the technical field of UVA-near infrared two-region multispectral synchronous imaging. The system comprises a broadband spectrum light source, a microscopic module, a Fourier structured light generation device, a scattering medium homogenization module, a multi-channel narrow-band detector array, a multi-channel data acquisition system and a calculation imaging processing unit. By arranging and combining a plurality of narrow-band single-point detectors and combining the scattering effect of ground glass, efficient synchronous acquisition and space uniform distribution of UVA to near-infrared two-region multispectral signals are realized, and the problems of complex hardware, low time resolution, spectral crosstalk, incomplete view and the like in traditional multispectral imaging are solved. According to the system, the Fourier single-pixel imaging principle is utilized, through the synergistic effect of structured light coding and a single-pixel detector, the view field consistency of multispectral images is ensured on the hardware level, later registration is not needed, meanwhile, the system has high sensitivity, low cost and compactness, and the system is suitable for high-resolution wide-spectrum microscopic imaging in the fields of biomedicine, material science and the like.

The application discloses a laser loading energetic material detonation velocity rapid prediction method and system, and belongs to the field of energetic material detonation performance detection. The application uses a pulse laser to interact with an energetic material to generate a shock wave, uses a single-point APD detector to record and store voltage changes of the APD, obtains an attenuation signal of the shock wave when the shock wave passes through a detection light beam, extracts interval time between a pulse signal and different height attenuation peaks from the energetic material surface, fits a time-position relationship through a corrected point explosion model, obtains corresponding shock wave characteristic velocity, establishes a linear regression relationship with a macroscopic detonation velocity, and realizes rapid prediction of the energetic material detonation velocity. The application only needs 5-10 mg of a sample, realizes extraction of the shock wave velocity of the energetic material through a single-point detector, obtains the shock wave characteristic velocity, linearly fits the shock wave velocity and a known detonation velocity, and predicts the energetic material detonation velocity. The application can improve the research and development efficiency of the energetic material and reduce the research and development cost.

The invention relates to a full space-time vehicle trajectory reconstruction method based on multi-source sparse detector data, and belongs to the technical field of trajectory reconstruction. The method comprises the following steps: unifying formats of upstream and downstream fixed-point detector data and sparse mobile detector data to form a multi-source sparse detector data environment, and regarding a time and space range enclosed by a multi-source detector as a vehicle trajectory reconstruction area; based on multi-source sparse detector data, an initial full-space-time vehicle track is obtained through reconstruction of an intelligent driver model; and converting the full space-time vehicle trajectory data into a matrix data structure, and improving the reconstruction precision of the vehicle trajectory by using an iterative matrix singular value decomposition algorithm to obtain an optimal full space-time vehicle trajectory. Compared with an existing trajectory reconstruction technology, the method is excellent in performance and wide in application range in a multi-source sparse detector data environment.

This invention relates to an optical system for MEMS scanning lidar based on freeform surface optical power compensation and its design method. The system includes a laser emitting module, a compensation lens, a MEMS scanning mirror, a freeform surface mirror, a beam-splitting prism, and a single-point detector. The system is designed based on the established correspondence between the MEMS scanning angle, the incident position of the freeform surface mirror, the local radius of curvature, the local reflected optical power, and the refracted optical power of the compensation lens, combined with the freeform surface mirror and the compensation lens. The system has a simple structure and is easy to operate. By matching the optical power of the compensation lens and the freeform surface mirror, and combining this with the MEMS scanning process, it maintains a low divergence angle and stable echo reception capability even under large field-of-view scanning conditions. This improves the system's adaptability and imaging quality, meeting the imaging requirements of lidar. It is suitable for applications such as autonomous driving lidar, robot navigation, and 3D environmental perception.

The utility model relates to the technical field of detectors, and discloses a grabbing type point detector mounting and dismounting device which comprises a telescopic rod, the top of the telescopic rod is rotatably connected with a limiting ring, the top of the limiting ring is fixedly connected with a U-shaped plate, and two connecting plates are rotatably connected between the inner walls of the U-shaped plate. Moving plates are rotatably connected to one sides of the two connecting plates, clamping plates are fixedly connected to one sides of the two moving plates, guide rails are slidably connected to one sides of the two moving plates, first fixing rings are fixedly connected to the outer walls of the guide rails, and two fixing rods penetrate through and are slidably connected to the outer circles of the first fixing rings; the outer rings of the two fixing rods are both sleeved with springs, and one ends of the two fixing rods are both fixedly connected with clamping blocks. According to the utility model, the first fixing ring is aligned with the detector and moves upwards, and then when the first fixing ring moves, the first fixing ring extrudes the clamping block, so that the fixing rod moves, and the compression spring and the clamping block firstly clamp and limit the detector.

The present disclosure relates to the technical field of optical analysis, and specifically provides a method for rapidly obtaining transient spectrum by high-speed rotating spectrometer with single detector. The method is characterized in that: the incident light is subjected to different wavelength of emergent light by high-speed rotating spectrometer, and the emergent light is read by single detector in turn and processed by computer to obtain transient spectrum, and the single spectrum acquisition time is less than 0.12 seconds. The method comprises the following steps: 1) guiding the light beam of incident light source into the rotating disc through the incident slit, and decomposing the light beam into spectrum by the spectrometer on the disc; 2) rotating the spectrometer on the disc at high speed, so that the different wavelength of light photons after spectrometer are in turn passed through the emergent slit and enter the single detector; 3) converting the light signal read by the detector into electric signal, and obtaining the transient spectrum after collecting and processing by the computer. The method can be used for online analysis of the components and concentration changes of the effluent of chromatographic column and the components in reaction cell, and solves the problem of slow scanning spectrum speed of existing single detector and over-expensive multi-point detector.

This utility model discloses an electrical connection device for a relay base and its matching point detector, relating to the field of fire protection electrical connection technology. It includes a base and a detector mounted on the base. The detector has a plug with contacts, and the base has a guide plate. A connecting component is provided between the plug and the base to enhance the connection stability between them. The connecting component includes a connecting block located in the base. This utility model, by setting the connecting component, allows the connecting block to automatically engage with the plug's slot when it is inserted into the base, thus completing the limiting connection of the detector on the base. Compared to traditional plug-in methods, this method offers higher connection stability. Even if the metal contact deformation capacity decreases, the detector can still be firmly connected in the base, preventing loosening and detachment.