43 results about "Point detector" patented technology

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.

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 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 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.

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 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 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.

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.

The application provides a target space ranging and operation safety early warning method based on single view geometry, obtains multiple scene operation images through a substation monitoring camera and an operation personnel law enforcement instrument, supplements general data set samples to improve diversity, and constructs a substation operation personnel foot key point data set; a key point detector YOLO-P3C is used to obtain two-dimensional information of personnel foot key points, a feature extraction module CIDW, a feature enhancement module CDA and a multi-scale fusion module CEM are integrated to solve the problems of inaccurate small target key point positioning and large model calculation in a complex scene; according to the conversion relationship between the world coordinate system and the pixel coordinate system, the depth information is deduced by using the reverse coordinate conversion formula combined with the prior height, and an error compensation model (LEC) based on reverse coordinate conversion is proposed to correct the inherent nonlinear depth deviation in the monocular reconstruction process, and high-precision three-dimensional reconstruction under monocular vision is realized; finally, the head coordinates are solved based on single view metrology, the safety distance between the personnel and the live region is calculated, and the hierarchical alarm threshold is set, the multi-level early warning function is realized, and reliable support is provided for the safety control of the substation site operation.

The invention provides a device, method, program, and recording medium for providing information about multiple recommended spots near a moving object, ensuring that the information is provided before the moving object reaches a branch point leading to the recommended spot.When a recommended spot extractor 130 extracts multiple recommended spots and a branch point detector 150 detects multiple branch points, a controller 180 prioritizes providing information for the recommended spot that is guided from the branch point, based on a shorter time from the current position of the moving object to the branch point. The controller 180 also determines an information provision timing, based on the time needed to reach the branch point and the time required to provide spot information of the recommended spot, ensuring that the provision of the information is completed by the time the moving object arrives at the branch point to the recommended spot.

The invention relates to a confocal microscope (1) comprising: an excitation light source (5) for exciting a light beam (6); an excitation light beam splitter (7); a point detector (14) for detecting sample light (10) returning from the sample (2), the point detector having a detection optical system (13); a microscope objective lens (4); a movement device (3) for adjusting the relative distance (AB) between the microscope objective (4) and the sample (2); an analysis device (16) comprising: an analysis beam splitter (8) for coupling out a portion (11a) of the sample light (10) returning from the sample (2); an analysis optical system (12) for focusing the decoupled part (11a) in the direction of the analysis detector (17); analyzing a detector (17) for detecting the decoupled part (11a); and a modulation device (22), by means of which the refractive power of the evaluation optical system (12) and / or the relative distance (RA) between the evaluation detector (17) and the evaluation optical system (12) can be periodically varied over time as a function of a modulation signal (140), a focus time (tx) being determined as a function of a detector signal (150) of the evaluation detector (17), the decoupled part (11a) is focused on an evaluation detector (17) at a focusing time, and a distance control signal for the moving device (3) is generated by means of the focusing time. The confocal microscope enables automatic tracking of the distance between the sample and the microscope objective in a simple and reliable manner.

An apparatus includes an optical system, a transmitter, and a detector. The optical system includes a transmitter-side component and a detector-side component. The transmitter is adapted to transmit a first plurality of light spots along a transmitter-side optical path passing through at least one transmission region of the transmitter-side component and outside the apparatus. The detector is adapted to detect a second plurality of light spots from outside the apparatus and along a detector-side optical path passing through at least one transmission region of the detector-side component. The transmitter-side component is adapted to apply a first diffraction effect to the first plurality of spots, the first diffraction effect introducing at least one n-order diffraction point, each n-order diffraction point corresponding to one of the first plurality of spots. The detector-side component is adapted to apply a second diffraction effect to the second plurality of spots prior to detection by the detector.

The present application relates to a kind of fault diagnosis processing method and device of beidou short message system, applied in the host computer of the fire point detection system carried on satellite, fire point detection system includes fire point detector and beidou short message system, fire point detector is electrically connected with beidou short message system, beidou short message system is used to communicate with external GEO satellite;Method includes: every other preset period, the first state and the second state of beidou short message system are acquired, first state and second state are respectively determined based on the first instruction and the second instruction that the fire point detector is sent beidou short message system;First instruction includes the beam state of GEO satellite, second instruction is determined based on the preset instruction that the fire point detector is sent beidou short message system;Based on the duration of the first state and the second state obtained, whether beidou short message system is failure and the fault type of corresponding failure are judged;If yes, then the corresponding processing measure is determined based on the fault type of failure.

Device (30) that detects the breakage of the front end of a tool (T) for machining, which is used in a machine tool (1), wherein the tool breakage detection device (30) with a contact transmitter (60) which is located in a position opposite the front end of the tool (T) which is held in a certain position, a movement mechanism (31) which has a holding component (41) that holds the contactor (60) and moves the contactor (60) between a contact point (P6) where the contactor (60) comes into contact with the front end of the tool (T) and a retraction position (P4) separate from the front end of the tool (T), a contact point detector (50) which detects, in the direction of movement of the contact transmitter (60), the point at which the contact transmitter (60) made contact with the front end of the tool (T), and is equipped with a break detection element (55) which, based on a standard contact position with respect to the front end of the tool (T) and the contact position detected by the contact point detector (50), determines the presence of a break in the front end of the tool (T), wherein the contact transmitter (60) consists of a polyhedron having at least three contact surfaces about the axis orthogonal to the direction of movement, and is held by the holding component (41) in such a way that it is rotatable about the axis, and a position opposite the front end of the tool (T) can be indicated to the respective contact surfaces.

The present application relates to a kind of aerosol particle optical detection device, comprising: light source, for emitting light beam to irradiate into the aerosol particle of detection area;Aerosol flow channel, for the scattered light detection of aerosol particle;Digital micromirror array component, for the deflection modulation and convergence of different annular aperture scattered light;Distributed single-point detector, for receiving the annular aperture scattered light of convergence, and converting optical signal into electrical signal.The present application is a kind of by digital micromirror array and distributed single-point detector aerosol particle light scattering counting detection device, by the angle selection of each micro-mirror in digital micromirror array, the scattered light of different particle size particles is converged into several single-point detectors respectively, can avoid using large area array multi-element photodetector, while improving the collection efficiency of forward scattering light energy, and no need to calibrate F-D curve, so there is no problem of inaccurate particle size detection caused by Mie resonance zone.

An anti-leakage monitoring system for a gas pipeline relates to the technical field of natural gas pipeline monitoring and comprises a monitoring network consisting of control valves arranged along the pipeline at intervals and a matched flow sensor B, and primary positioning of the leakage section is realized by combining data comparison of the flow sensor B at the upstream of each control valve. The innovatively-configured leakage point detector is internally provided with a sound sensor, a miniature positioning tracker and a conical flow guide cover and is driven by pipeline airflow to move, and the coordinates of a leakage point are accurately positioned through fusion of a sound intensity change curve and real-time positioning data. The system is provided with a composite monitoring unit with a protection box, an electronic combustible gas alarm and a wireless transmission module are integrated, and dual leakage early warning is achieved. A specially-arranged test injection system can inject gas into a target section in a pressurized mode, and the detection sensitivity is improved by enhancing leakage sound signals. According to the system, flow difference analysis, acoustic detection and intelligent positioning technologies are integrated, a multi-stage leakage detection system is formed, and the pipeline leakage diagnosis precision and the first-aid repair efficiency are remarkably improved.

The application discloses a small-sized spectral detection gas cloud imaging device based on a galvanometer and a cassette telescope and relates to the technical field of spectral detection devices. The small-sized spectral detection gas cloud imaging device based on the galvanometer and the cassette telescope comprises an identification scanning module, a two-dimensional tracking galvanometer and an imaging module. The identification scanning module comprises a cassette telescope and a two-dimensional scanning galvanometer. The imaging module comprises a Fourier interference module and a high-speed photoelectric point detector. A diaphragm is arranged between the two-dimensional tracking galvanometer and the imaging module. The combination of the cassette telescope and the two-dimensional scanning galvanometer realizes high-precision positioning of a to-be-measured scene and spectral data collection, thereby avoiding the problem that, in the prior art, spectral data is inconsistent or lost due to uncertain target positions, and thus ensuring that spectral data of each target position is effectively collected and transmitted.

The utility model discloses a handheld point inspection instrument, and relates to the technical field of fault diagnosis. The handheld point inspection instrument comprises a main controller, a wireless communication assembly and a wired communication assembly, and the wireless communication assembly is electrically connected with the main controller; the wired communication assembly is provided with a communication circuit and a communication line and is electrically connected with the main controller, and the main controller is used for receiving the wireless vibration signal and / or the wireless temperature signal, outputting first vibration data after performing signal processing on the wireless vibration signal, and outputting first temperature data after performing signal processing on the wireless temperature signal; the processor is also used for receiving the wired vibration signal and / or the wired temperature signal, outputting corresponding second vibration data after signal processing of the wired vibration signal, and outputting second temperature data after signal processing of the wired temperature signal. The utility model aims to improve the functional diversity of the handheld point inspection instrument, further improve the accuracy and reliability of fault diagnosis of mechanical equipment, and improve the user experience.

The application relates to the technical field of optical application, in particular to a single-point detector imaging performance characterization system; the characterization system comprises a data acquisition platform, a laser, an objective lens, a bright-field imaging image sensor, a single-point detector, a source table and an optical path assembly; the data acquisition platform is connected with the laser to receive an electric signal after photoelectric conversion of the single-point detector; the source table is further connected with a current amplifier and an oscilloscope; and the optical path assembly guides a light path; on the basis of the prior art, the structure of the characterization system is improved, the simulation physical imaging mode is adopted, the device is simplified, the position of the single-point detector in the optical path is easy to determine, the photosensitive surface size of the detector can be as small as microns, the characterization system is especially suitable for scientific research, the imaging characterization of the full-waveband single-point detector can be realized by replacing the laser, the optical path stability can be maintained, and rich information amount such as current size, responsivity and response speed can be contained in single characterization.

The utility model relates to the related technical field of punching of a compound die, and discloses a device for removing defective materials of a silencing piece through a bottom dead center detector, which comprises a punching mechanism and a detection mechanism, wherein the stamping mechanism comprises a supporting rod, a top plate is installed at the upper end of the supporting rod in a sliding mode, a bottom plate and a plurality of buffer columns arranged on the periphery of the upper end of the bottom plate are fixedly installed at the lower end of the supporting rod, a movable plate is fixedly connected to the upper ends of the buffer columns, and the appearance of the movable plate is consistent with that of the top plate; and the detection mechanism is arranged at the lower end of the top plate, comprises a bottom dead point detector and is used for detecting whether defective materials enter the die or not, and the defective materials can be prevented from being mixed into finished products after being punched. In this way, bad materials can be prevented from being mixed into finished products after being punched, and the product percent of pass and customer satisfaction are improved.

The invention provides a laser gas imaging detection method and system, and the method comprises the steps: demodulating signals outputted by all single-point detectors in an area array detector of a main path to obtain gas concentrations corresponding to single-point detection of all single-point detectors, and combining the gas concentrations into a gas concentration distribution image; the gas concentration corresponding to single-point detection of the single-point detector is obtained by the following steps: collecting a whole-period signal output by the single-point detector in the area array detector, sequentially carrying out two times of effective judgment on the signal as an effective signal, and carrying out gas concentration inversion calculation to obtain a target gas concentration value; when the number of times of gas concentration inversion calculation of the target gas concentration reaches n, concentration sorting is carried out, the maximum value and the minimum value are removed, and after averaging is carried out, the obtained gas concentration value serves as the gas concentration corresponding to single-point detection of the single-point detector.

The invention provides a grounding cabinet with a pressure detection function, a system and an alarm method. The grounding cabinet comprises a grounding cabinet body, a detector, a controller and a pressure relief plate, the pressure relief plate is provided with a pressure relief plate circuit used for detecting whether the pressure relief plate is broken or not, the pressure relief plate circuit is provided with an input contact and an output contact, a detection circuit is arranged in the detector, the input contact and the output contact are connected to the detection circuit in series, and the detection circuit is used for detecting the on-off state of the pressure relief plate circuit and forming on-off state information; the controller is in communication connection with the detector and used for receiving the on-off state information from the detector and judging whether the pressure relief plate is broken or not based on the on-off state information. The ground cabinet has the function of acquiring the state of the pressure relief plate in real time, and when the pressure relief plate is broken, personnel can be more quickly arranged to overhaul and maintain the ground cabinet, so that the overhaul and maintenance efficiency is improved.