269 results about "Direction detection" patented technology

The invention provides an engineering drawing intelligent processing system based on a ComfyUI, and the system comprises an algorithm service module which integrates a plurality of drawing processing algorithm assemblies, such as drawing layout analysis, OCR recognition, drawing direction detection, semantic understanding, drawing frame disassembly, and axis net recognition, and provides services for the outside through a standardized interface; the workflow arrangement module is used for packaging the algorithm components into parameterized drawing processing nodes based on a visual node configuration framework of a ComfyUI, and supporting flexible combination, real-time preview and batch execution of drawing processing flows; and the workflow management module is used for importing, analyzing and publishing the workflow configuration file in the ComfyUI format, and realizing metadata management, publishing verification, API document generation, interface registration and call authority control of the workflow. The method supports multi-type input of PDF and CAD drawings, is suitable for engineering drawing processing tasks such as drawing label extraction, sub-drawing recognition, drawing frame segmentation and drawing filing, and is high in intelligent degree, flexible in process configuration, easy to integrate and high in expansibility.

The invention discloses a multi-wavelength laser collimator based on radial shearing. The multi-wavelength laser collimator comprises a near-field reference, a telescope objective combination, a bifocal objective and an image detector which are sequentially arranged along a light path. Aberration-free imaging of near-field light beams is achieved through a bifocal objective lens, and meanwhile far-field pointing is detected through coaxial shearing interference generated by means of amplitude light splitting. A single non-mobile sampling detection light path and a single detection sensor are used to realize simultaneous acquisition of near-field position information and far-field pointing information of a laser beam; the light spot position deviation and the fringe translation amount are analyzed through a computer, and high-precision collimation is achieved through a feedback control system. And the detection of the angle direction of the laser beams with various wavelengths can be realized by using a radial shearing interference technology. The device breaks through the limitation of traditional double-optical-path collimation, has the characteristics of simple structure, strong anti-interference performance, multi-wavelength applicability and the like, remarkably improves the collimation precision, reduces the cost, and has important application value in the field of laser precision collimation.

The invention discloses an anti-interference mounting structure of an inductive sensor, and aims to solve the technical problems of insufficient mounting space and limited application scene caused by high requirement on interference-free distance of peripheral metal of the conventional TURCKNI100U-K90SR-VP4X2 type inductive sensor, the structure comprises a metal protection box, an electromagnetic shielding assembly and a sensor body; the electromagnetic shielding assembly comprises two electromagnetic shielding films with the size of 25 * 10 * 0.5 mm, and the two electromagnetic shielding films are attached to the two sides of the upper portion of the sensor body respectively. The top of the metal protection box is provided with a non-transparent anti-aging plastic cover plate, one end is provided with a through hole for wire connection, the inner wall of the bottom is provided with a sensor mounting blind hole, and the outer wall is provided with an equipment fixing guide hole. The metal interference-free distance around the sensor is shortened to 18.5 mm through local electromagnetic shielding, meanwhile, it is guaranteed that the detection distance of the sensor in the vertical direction is not attenuated, sealing protection of the sensor is achieved through the protection box, the application scene of the high-detection-distance inductive sensor is remarkably expanded, and the high-detection-distance inductive sensor is particularly suitable for mechanical equipment in a narrow space.

The utility model provides an airing height self-adaptive system and a clothes airing machine, and relates to the technical field of airing. The airing height self-adaption system is applied to the clothes airing machine and comprises a main control module arranged in a main machine of the clothes airing machine and a distance detection module arranged on an airing rod of the clothes airing machine. The distance detection module is in communication connection with the main control module, and is used for detecting existence of a detection object within a preset distance from the airing rod to a preset direction and sending a detection result to the main control module; and the main control module is used for controlling the airing rod to stop lifting through a power system of the clothes airing machine according to the received detection result. According to the system, the distance detection module connected with the main control module is arranged, the airing rod of the clothes airing machine can stay at the airing height matched with the height of a detected object on the basis of the structure and line structure, airing height self-adaption of a user of the clothes airing machine is achieved, and the intelligent degree of the clothes airing machine is remarkably improved.

The invention belongs to the technical field of chemical reaction OCR (Optical Character Recognition), and particularly relates to a chemical reaction OCR method and system based on multi-model collaboration. The recognition method comprises the following steps: (1) reaction image data, (2) a chemical reaction detection model, (3) a reaction role detection model, (4) a compound recognition model, (5) a text recognition model, (6) a direction detection model, (7) result merging, (8) verification frequency judgment, (9) leak detection verification, (10) molecule legal verification, and finally outputting a standardized chemical reaction Smiles expression result. The method has the capability of independently analyzing the chemical reaction equation in the pure image form, and the applicability and robustness in complex documents and unstructured scenes are remarkably improved.

The invention relates to the technical field of sonar detection, and discloses an inspection well underwater pipeline and flow direction detection method, device, equipment and medium, and the inspection well underwater pipeline and flow direction detection method comprises the steps: obtaining sonar detection data of a plurality of target inspection wells by using target sonar scanning equipment equipped with a jacking rod rail device; the target sonar scanning equipment is used for transmitting an ultrasonic original frequency in a target inspection well and receiving a reflected target ultrasonic frequency; performing three-dimensional modeling on the target inspection wells according to the sonar detection data to obtain a target inspection well three-dimensional model of each target inspection well; according to the three-dimensional model of each target inspection well, determining a pipe orifice circle center coordinate of each target inspection well; the water flow direction of each target inspection well is determined according to the ultrasonic offset frequency data corresponding to the coordinates of the circle center of the pipe opening of each target inspection well, the water flow direction of each target inspection well is determined through sonar detection, and the accuracy of determining the water flow direction of the inspection well is improved.

The invention discloses an ultrasonic guidance navigation system based on multi-modal detection and a CNB ejection mechanism, and belongs to the technical field of ultrasonic auxiliary diagnosis, multi-modal detection loads a directional bounding box model and a segmentation model when the system is initialized, and the directional bounding box model performs directional detection of a puncture needle on an input frame; in the result extraction stage, puncture needle information is extracted from a directional bounding box model detection result, a focus mask is extracted from a segmentation result, and the focus mask is adjusted to be the same as an input frame in size; when the focus mask is extracted, the validity of a segmentation result is verified, then first effective mask data are extracted from multiple types of segmentation results, the mask data are transmitted to a CPU from a GPU memory, a floating point probability value is converted into an integer binary mask, and puncture needle direction detection and segmentation of multiple types of anatomical structures are achieved. According to the CNB ejection mechanism, a mathematical model of the ejection process is established through an ejection trajectory calculation function, and a reliable mathematical basis is provided for CNB ejection operation diagnosis.

The utility model provides a pipe network flow direction detection device, which comprises a fixed part fixed at the top of a pipe network, the top of a support is hinged with the fixed part, the bottom of the support is respectively and rotatably connected with a floater assembly and a plectrum assembly, and the floater assembly is heavier than the plectrum assembly and is positioned at the top of the plectrum assembly. The floater assembly can synchronously move along with water flow so as to drive the support to rotate relative to the fixing part, a trigger ball and a trigger switch are arranged in the shifting piece assembly, the trigger ball can move relative to the trigger switch, and the shifting piece assembly can synchronously move along with the water flow so as to drive the trigger ball to move relative to the trigger switch. The installation requirement precision is low, the manufacturing and maintenance cost is reduced, and assembly and disassembly are convenient; the support can be driven to rotate through the floater assembly, so that the support is driven to rotate when water flow impact exists, the support is driven to reset when no water flow impact exists, and the automatic reset effect can be effectively achieved.

The invention discloses a geologic body boundary extraction method based on gravity total horizontal derivative anomaly, and belongs to the technical field of geophysical data processing and interpretation. Calculating gravity total horizontal derivative anomaly based on actually measured gravity anomaly data; in the sliding window, detecting whether the gravity total horizontal derivative abnormity meets a preset extreme value structure condition in multiple directions, and screening out boundary points based on an amplitude threshold value and a slope threshold value; according to the invention, a geologic body boundary extraction method based on gravity total horizontal derivative anomaly is established by using directional extremum features of gravity total horizontal derivative anomaly; compared with a traditional boundary recognition method, the method does not depend on prior information, is high in anti-noise performance, can quickly and accurately recognize the boundary position of the geologic body under a complex background, and has higher boundary resolution.

To reliably determine the direction of the subject's gaze. [Solution] The gaze direction detection device 1 comprises a camera 10 that acquires a face image by capturing the face of subject A, and an image processing device 20 that processes the face image acquired by the camera 10 to determine the gaze direction of subject A. The image processing device 20 detects the three-dimensional positions of the right pupil, left pupil, and nose based on the face image, identifies the three-dimensional position of the intersection of a second straight line that passes through the three-dimensional position of the nose and intersects perpendicularly with a first straight line connecting the three-dimensional positions of the right pupil and the three-dimensional positions of the left pupil, and the first straight line, and determines the gaze direction of subject A using the first distance between the three-dimensional position of the intersection and the three-dimensional position of the right pupil, the second distance between the three-dimensional position of the intersection and the three-dimensional position of the left pupil, and the third distance between the three-dimensional position of the intersection and the three-dimensional position of the nose.

The utility model provides a storage battery pack direction detection tool, which comprises a mounting plate and at least one row of direction detection components, the direction detection components are mounted on the mounting plate, a plurality of direction detection components in each row are distributed at intervals along the length direction of the mounting plate, and the plurality of direction detection components are arranged corresponding to a plurality of storage battery packs in a storage battery box. The direction detection assembly comprises a circuit board which is provided with a first light emitting diode and a second light emitting diode which are arranged in parallel and are opposite in installation direction, and the light emitting colors of the first light emitting diode and the second light emitting diode are different; and the two conductive probe assemblies are installed on the two sides of the circuit board, electrically connected with the circuit board and used for correspondingly abutting against the positive electrode and the negative electrode of the storage battery pack. Therefore, whether the positive electrode and the negative electrode of each storage battery pack are wrongly installed or not can be visually judged at a time through the light emitting color of the diodes, the detection efficiency is greatly improved, and the production cost is reduced.

The invention relates to a large-aperture spherical optical element bus on-line detection device which comprises a bottom supporting structure, an X-direction detection assembly and a Z-direction detection assembly. Wherein the supporting mechanism is mainly formed by welding a heavy-load type Foma wheel, a top transverse square pipe, a top mounting plate, a supporting stand column square pipe, a reinforcing rib square pipe and a bottom transverse square pipe; the X-direction detection assembly is mainly composed of a grating ruler, an A servo motor, a speed reducer, a large coupler, a lead screw and a linear guide rail. The detection assembly in the Z direction is mainly composed of a contact type length gauge, a servo motor B, a small coupler and a lead screw module. The device is used for online precise detection of generatrix data of a large-aperture spherical optical element by detection personnel, is especially suitable for large-aperture, heavy-weight and difficult-to-overturn spherical optical elements, and can accurately detect the generatrix data of the large-aperture spherical optical element by adjusting the displacement of the precise detection element in the X and Z directions and the measuring range of the contact type length gauge. And on-line detection is carried out on detected optical element buses with different calibers, thicknesses and bus depths.

The utility model discloses a wireless stethoscope which comprises a stethoscope shell and a handheld shell, one end of the handheld shell is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with the outer wall of the stethoscope shell, and the stethoscope shell is fixedly installed at the end of the handheld shell through the connecting block. A trumpet-shaped opening is formed in one side of the auscultation shell, a mounting ring is fixedly arranged at the position, located on the inner wall of the trumpet-shaped opening, of the auscultation shell, and a sound filtering diaphragm is arranged in the middle of the interior of the mounting ring. According to the utility model, the plurality of microphones are uniformly arranged on the mounting ring in a surrounding manner, so that a microphone matrix is formed on the mounting ring, the sound direction detection sensor on the PLC judges the sound emitting direction according to the sound receiving sequence of the different microphones, and the sound direction is displayed on the display; therefore, a doctor can accurately find the sounding position according to the direction displayed on the display, and the doctor can judge the illness state of a patient.

To provide a reflector and a reference point surveying method having a simple structure and capable of detecting the incident direction of a light beam to the reflector without changing a measuring reference point regardless of the incident direction of the light beam.SOLUTION: The direction detector includes an image-forming lens (4) and a light-receiving sensor (5), and is configured such that principal rays 11a, 11b, 11c, and 11d that are incident so as to pass through the center of the ball lens and are transmitted through the ball lens are reflected by an outer face of the spherical crown and an inner face of the spherical crown or a face of the ball lens and are then incident on the direction detector. The direction detector is configured to detect the incident direction of the main light beam with respect to the main optical axis based on a light receiving position 5d of the light receiving sensor when the main light beam is incident on the imaging lens and is imaged on the light receiving sensor by the imaging lens.SELECTED DRAWING: Figure 1

An apparatus, method and computer program is described comprising: detecting, at a second user device, one or more display patterns displayed at a display of a first user device, wherein the one or more display patterns comprise features with spatial variations configured to be detected by a radar module of the second user device; determining at least one of an orientation, position, or size of the first user device based, at least in part, on the one or more display patterns; and determining at least one of an orientation or position of the second user device relative to the first user device within a coordinate system of the first user device.

The embodiment of the application provides a window-cleaning robot motor rotation direction detection method and related device, and relates to the cleaning technical field.The method comprises the following steps: obtaining a pulse signal of a detection sensor; the detection sensor comprises a single-phase Hall sensor and / or a single-phase photoelectric sensor; and the rotation direction of the motor is determined according to the characteristics of the pulse signal.The above method replaces the traditional dual-phase Hall sensor or dual-phase photoelectric sensor with the single-phase Hall sensor and / or the single-phase photoelectric sensor, uses the time sequence characteristics of the pulse signal output by the single-phase Hall sensor and / or the single-phase photoelectric sensor to realize high-precision and high-reliability detection of the motor rotation direction, and effectively reduces the complexity of the cost system of the window-cleaning robot.

The invention belongs to the field of Internet of Things, and particularly relates to a pedestrian sight line direction detection method and device based on a top-mounted camera and a medium, and the method comprises the steps: obtaining an indoor scene video stream; inputting the indoor scene video stream into the key point detection model to generate enhanced basic features fused with diversified gradient information; performing dynamic sparse attention calculation on the enhanced basic features to obtain an optimized feature map; performing pooling and convolution processing on the optimized feature map twice to obtain a spatial weight corresponding to the optimized feature map; a pedestrian upper body key point composed of a left shoulder point, a right shoulder point, an afterbrain midpoint and a forehead midpoint is obtained; calculating an initial sight direction according to the afterbrain midpoint and the forehead midpoint; and based on the position and the line-of-sight direction of the same pedestrian in the continuous multiple frames, compensating the initial line-of-sight direction through a filtering algorithm. Accurate, stable and small-calculated-amount sight line direction calculation is realized.

The embodiment of the utility model provides a wide-area laser tracking target spot device. The wide-area laser tracking target spot device comprises a mounting seat and a plurality of target spot bases, the target spot base is of a semi-cylindrical structure, and a reflector is arranged on the rectangular plane of the target spot base and used for reflecting detection laser; the semicircular planes of the target spot bases are spliced with each other, and the rectangular planes of the two adjacent target spot bases are staggered with each other, so that the reflectors can reflect the detection laser at multiple angles; and one side of the mounting seat is connected to the semicircular plane of the target spot base at one end, and the other side of the mounting seat is mounted on the flexible measuring bracket so as to fix the mounting seat and the target spot base. According to the design, through a laser scanning principle and target point global tracking, a traditional target point which can only be detected in a single direction is creatively changed into a target point which can be detected in a full circumferential direction. Besides, the target spot can be detected in the whole circumferential direction, and no matter how the scanner moves, enough effective target points always exist in the space, so that loss and layering of measurement data are avoided, and the result precision is ensured.

The utility model relates to cigarette arrangement direction detection technical field, especially the protruding cigarette detection device on the conveying way between the packing machine and cigarette making machine, and it includes support piece, cigarette removing piece, cigarette photographing piece and industrial computer, one end of support piece is connected with one side wall of cigarette conveyor, the feed end of cigarette conveyor is connected with the discharge end of cigarette making machine, the discharge end of cigarette conveyor is connected with the feed end of packing machine, cigarette removing piece is adjustably connected with support piece, the air blowing end of cigarette removing piece faces the conveying area of cigarette conveyor, cigarette photographing piece is located obliquely above cigarette removing piece, cigarette photographing piece is close to the direction of the cigarette conveyed by cigarette conveyor, cigarette photographing piece is adjustably connected with support piece, the photographing end of cigarette photographing piece is located above the conveying area of cigarette conveyor, industrial computer is electrically connected with cigarette photographing piece, and industrial computer is used for identifying the incorrect cigarette information in the photo taken by cigarette photographing piece, industrial computer is electrically connected with cigarette removing piece through PLC controller, and the problem that protruding cigarette on the surface of cigarette layer cannot be detected and removed in time is solved.

The invention discloses a pit mud structure detection device and a detection method. The pit mud structure detection device comprises a placement assembly and a detection assembly, the placing assembly comprises a lifting platform, and the lifting platform is provided with a containing assembly; the detection assembly comprises a base, a rotating seat and a detection part, the rotating seat is rotationally arranged on the base, and the rotating axis of the rotating seat is parallel to the moving direction of the lifting platform; the detection part is arranged on the rotating seat and comprises a transmitting end and a receiving end which are oppositely arranged. According to the invention, the risk of deformation of the pit mud sample caused by contact with the pit mud sample in the detection process can be effectively reduced, the internal structure of the pit mud sample can be accurately obtained, and the detection and analysis accuracy of the pit mud sample is improved; by observing the information of each section in the pit mud sample, the detection and analysis process is more intuitive and convenient, and the detection and analysis efficiency can be effectively improved.

The sound collection system (S) has: a microphone array (1) including a plurality of microphones (2); a first beamformer (152) that outputs a first signal in which, among a plurality of sound signals based on sound arriving at the plurality of microphones (2), sound signals based on sound arriving from a direction within a first range are emphasized more than sound signals based on sound arriving from other directions; a second beamformer (153) that outputs a second signal in which, among the plurality of sound signals, sound signals based on sound arriving from a direction within a second range are emphasized more than sound signals based on sound arriving from other directions; a sound source direction detection unit (151) that detects a direction of a sound source that generates sound arriving at the plurality of microphones (2); and a directivity control unit (155) that, during the first beamformer (152) is outputting the first signal, if a change angle per unit time of the direction of the sound source detected by the sound source direction detection unit (151) is determined to be above a threshold value, causes the second beamformer (153) to output the second signal.

The utility model discloses a direction detection assembly, a machine body, a cleaning device and a cleaning system, the direction detection assembly comprises a circuit main body, an adjusting piece and a resistance piece, one of the adjusting piece and the resistance piece is used for being arranged on a rotating main body, and the other one is used for being arranged on a matching main body; the rotating main body and the matching main body can rotate relatively to drive the adjusting part and the resistor part to have a relative adjusting stroke, in the relative adjusting stroke, the adjusting part is used for adjusting the resistance value of the resistor part connected to the circuit main body, the circuit main body is used for outputting a corresponding electric signal according to the resistance value, and the electric signal corresponds to the rotating direction of the rotating main body. Therefore, according to the rotating direction of the rotating main body, the speed difference required by the target formed by the two power-assisted wheels of the whole machine can be specifically adjusted conveniently. And finally, the turning flexibility of the whole machine is improved, and the use reliability of the whole machine is improved.

The invention relates to a sensor arrangement (1) for a vehicle (2), comprising a housing consisting of a movable (1b) and a stationary housing part (1a), wherein a plurality of sensors (S1-Sn) are located in the housing. k ) is arranged for environmental perception, wherein at least one sensor (S1) has a detection area (E) directed in the direction of travel of the vehicle, wherein another sensor (S3) has a detection area (E) directed against the direction of travel of the vehicle and another sensor (S2) has a detection area (E) for monitoring a lateral area of ​​the vehicle, wherein at least a part of the plurality of sensors (S1, S2, S3, Sn1) is arranged in the movable housing part (1b), wherein the part of the plurality of sensors in the movable housing part comprises at least one sensor (S1) with a detection area (E) directed in the direction of travel of the vehicle, one (S3) directed against the direction of travel and one (S2) directed laterally to the side of the vehicle, and wherein the movable housing part (1b) has means (4) which are configured to move the movable housing part (1b) in a horizontal direction (Hr) such that the spatial extent of the sensor arrangement (1) can be changed.

The application relates to the computer technical field and discloses a human body skeleton-based escalator pedestrian reverse running detection method, which comprises the following steps: step 1: obtaining a video stream of an escalator through a camera; after a pedestrian enters an escalator area, a pedestrian bbox frame and a plurality of skeleton points are established; step 2: judging whether the upper body of the pedestrian is shielded through the skeleton points; if the pedestrian is shielded all the time in the escalator area, the pedestrian is filtered; if the pedestrian is not shielded all the time in the escalator area, the next step is performed; step 3: judging whether the trajectory direction of the midpoint of the top of the bbox frame is consistent with the escalator running direction; if not, the pedestrian is determined to run reversely, and an alarm is sent; if yes, the pedestrian does not run reversely. The present pedestrian reverse running detection method can improve the accuracy of escalator reverse running detection when the pedestrian is partially shielded. Meanwhile, a human body skeleton-based escalator pedestrian reverse running detection system is provided.

The present application relates to an image pickup apparatus, a control method thereof, a calibration system, and a storage medium. The image pickup apparatus can eliminate a change in an image pickup direction by a user during an image pickup operation, and can easily obtain an image recording an experience while focusing attention on the experience. An observation direction detection unit is worn on a body part other than a head of a user, and detects an observation direction of the user. An image pickup unit is worn on the body and picks up an image. A recording direction determination unit determines a recording direction using a detection result of the observation direction detection unit. A deviation detection unit detects a deviation of the image pickup apparatus with respect to the body. An image recording unit records a part of the image picked up by the image pickup unit in a recording region determined in accordance with the recording direction and the deviation.

The application discloses a fall detection method and system based on a wrist inertia sensor, and the method comprises the following steps: acquiring motion data collected by an inertia sensor installed on a human wrist and performing pretreatment to obtain target motion data; constructing a fall detection model and a fall direction detection model based on one-dimensional convolution and a long short-term memory neural network; performing fall detection by using the fall detection model; if falls are detected for a continuous setting number of times, it is confirmed that a fall occurs, then fall direction detection is performed by using the fall direction detection model, and a fall direction detection result is output. The application combines the advantages of a convolution neural network and a long short-term memory neural network to construct the fall detection model and the fall direction detection model, not only realizes automatic recognition of a fall direction, but also improves the accuracy of fall detection; and a judgment method based on multiple continuous sliding window data can effectively avoid that an approximate fall behavior is wrongly judged as a fall.

The invention relates to the technical field of electrical element detection, in particular to an intelligent detection device and method for a thermal protector, and the device comprises a plurality of detection assemblies, a conveying chain, and a heater. Each detection assembly is used for detecting the on-off of one thermal protector; the conveying chain drives the detection assembly to move circularly, and the heater is located above the detection assembly. Each detection assembly comprises a base which is fixed on the conveying chain and is provided with a placing groove at the top; the lower sliding block slides on the base; the abutting block is fixed on the lower sliding block; the upper sliding block slides on the base; the segmentation block is fixed on the upper sliding block; the two clamping blocks are located on the two sides of the segmentation block respectively, each clamping block slides on the upper sliding block, and the sliding direction of each clamping block is perpendicular to the sliding direction of the upper sliding block; the detector is arranged at one end of a sliding path of the upper sliding block; the detector comprises two first contacts and is used for detecting whether the two first contacts are communicated or not. According to the invention, the detection efficiency of the thermal protector is effectively improved, and missing detection is avoided.

Provided are an image recording apparatus and the like that can detect a direction of arrival of sound around a vehicle and dynamically set a region corresponding to the detected direction of arrival of the sound as a region of interest.An image recording apparatus includes: an image acquisition unit that acquires an image capturing the periphery of a vehicle; a sound acquisition unit that acquires sound of the periphery of the vehicle; a sound direction detection unit that detects a direction of arrival of the sound; a region of interest setting unit that sets a region corresponding to the direction of arrival of the sound in the image as a region of interest; and an image encoding unit that performs first encoding processing on the region of interest in the image and perform second encoding processing on a region other than the region of interest in the image.