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31results about How to "Improve detection and positioning accuracy" patented technology
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Object detection and location method and system based on depth data
ActiveCN105760846AAchieving perspective invarianceAccurate detection and positioningCharacter and pattern recognitionHat matrixObject-class detection
The invention proposes an object detection and location method and system based on depth data. The method comprises the steps of acquiring a depth map by using depth data acquired by a depth data sensor, constructing a background model of the depth map, acquiring an object foreground region under the perspective of the depth map, and carrying out initial segmentation of the object foreground region; mapping the object foreground region after the perspective of the depth map to an overhead perspective by using a projection matrix, and segmenting the object foreground region under the overhead perspective again according to the location difference of an object in the horizontal space; extracting depth features of the foreground region, training an object detection module, and carrying out detection positioning for adhered objects by using the object detection module; and carrying out three-dimensional coordinate location correlation tracking for detection positioning results on an overhead map, mapping the detection positioning results to an original depth map coordinate, and obtaining a final object detection result. The invention can complete accurate object detection and location in a quick and robust manner under severely blocked and changing illumination conditions.
Owner:河北景康维视智能科技有限公司
A method for recognizing objects in an image based on depth learning
InactiveCN109522938AReduce in quantityImprove selection qualityCharacter and pattern recognitionNeural architecturesFeature extractionWidth ratio
The invention discloses a method for recognizing an object in an image based on depth learning, Here are the steps: an image is inputted, the candidate regions are extracted by convolution neural network, filter and optimize the output candidate region, At the same time, each candidate region is normalized, the candidate region is input to convolution neural network for feature extraction, and thetrained classification and regression network is used to classify, locate and detect the target image. Finally, the selected target region is subjected to border regression operation to correct the position of the target region. This method uses convolution neural network to extract the regions which may contain objects in the image, and reduces the number of candidate regions. At the same time,it optimizes the filtering operation on the output candidate regions of convolution neural network, which improves the computational speed of the algorithm. In addition, a variety of length-width ratio and region size are used for the candidate region of the target detection, which is closer to the real scene and improves the robustness of the algorithm.
Owner:SOUTH CHINA UNIV OF TECH +1
Dynamic balance test method and device thereof
InactiveCN101694411AImprove detection and positioning accuracyReduce processStatic/dynamic balance measurementPulse frontDynamic balance
The invention provides a dynamic balance test method and a device thereof. The dynamic balance test method is used for testing workpieces with peripheries distributed with grooves uniformly and includes steps as follows: axially rotating a workpiece; utilizing a non-contact sensor to test the grooves on the workpiece at a fixed position and generate a pulse signal, wherein the pulse signal generated by the non-contact sensor when the workpiece begins to rotate is used as an unbalance datum zero-degree signal; dividing frequency of the pulse signal, wherein multiple of frequency dividing is equal to the amount of the grooves on the workpiece; and defining unbalance amount and unbalance angle according to the pulse signal after frequency dividing, wherein a first pulse front edge of the unbalance datum zero-degree signal is used as a zero-angle position of the workpiece when defining the unbalance angle. The dynamic balance test method and the device thereof remove special processes on the surface of the workpiece and save working procedures, thereby increasing positioning accuracy of unbalance angle tests. The dynamic balance test method and the device thereof are adoptable to automation of dynamic balance.
Owner:BEIJING KEEVEN PRECISION MACHINERY +1
Passive acoustic detection positioning device for low-altitude unmanned plane
ActiveCN107884749AHigh detection and positioning accuracyImprove monitoring capabilitiesPosition fixationSensor arrayLow altitude
The invention discloses a passive acoustic detection positioning device for a low-altitude unmanned plane, and the device comprises an acoustic sensor array detection module, a multichannel data collection module, a signal preprocessing module, an Ethernet transmission module, an embedded processing module, a display and control module, and a voice alarm module. The acoustic sensor array detectionmodule is used for receiving an acoustic signal, and the multichannel data collection module is used for converting the collected acoustic signal into a digital signal. The signal preprocessing module is used for the filtering and denoising of the signal, and transmitting the processed signal to the embedded processing module through the Ethernet transmission module, so as to achieve the signal processing and upper computer information processing. The display and control module is used for displaying detection information and sending a related instruction to an alarm and countermeasure signal. The voice alarm module is used for the real-time voice broadcasting of the detection and positioning information. The device is high in detection and positioning precision, can achieve the real-timedetection and display of the positions, numbers and types of consumption-level slow and small flying objects invading an airspace, and improves the low-altitude early warning defense strength.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Accurate facial paralysis degree evaluation method and device based on face feature points
ActiveCN111553250AImprove detection and positioning accuracyAchieving Accurate MeasurementsCharacter and pattern recognitionNeural architecturesPhysical medicine and rehabilitationPhysical therapy
The invention discloses an accurate facial paralysis degree evaluation method and device based on face feature points. The method comprises the following steps: establishing a facial paralysis key point detection model; acquiring to-be-detected data and processing the to-be-detected data; sequentially inputting an expression-free natural state static image, a sequence image I, a sequence image II,a sequence image III and a sequence image IV into the facial paralysis key point detection model to output a plurality of corresponding groups of face shapes, and updating the plurality of groups offace shapes; evaluating the facial paralysis degree of the to-be-detected user; calculating theta1, theta2, theta3, theta4, theta5, theta6, theta7, theta8, theta9 and theta10 and comparing the theta1,theta2, theta3, theta4, theta5, theta6, theta7, theta8, theta9 and theta10 with threshold values; and judging the facial paralysis degree of the to-be-detected user through the comparison result, andcalculating a facial paralysis index. According to the invention, the detection model has high detection positioning precision, the precision and accuracy of comprehensive evaluation and detection ofthe facial paralysis degree of the to-be-detected user are greatly improved, and a powerful support is provided for prevention, discovery and treatment of facial paralysis patients.
Owner:SHENZHEN DJ INNOVATION IND CO LTD
AI and vision combined intelligent container truck positioning method and system
ActiveCN111767780AImprove detection and positioning accuracyFast recognition of non-overlapping objectsInternal combustion piston enginesCharacter and pattern recognitionTemplate matchingVehicle frame
An AI and vision combined intelligent container truck positioning method and device calibrate a vehicle parking point through a camera in advance, and the AI and vision combined intelligent containertruck positioning method comprises the following steps: 1) reading a video stream of the camera, decoding the video stream into a picture, and preprocessing the picture; 2) inputting the processed picture into a pre-trained Mask RCNN neural network for deep learning for positioning to obtain a central point of the container or the frame, calculating an Euclidean distance between the central pointand a calibrated vehicle parking point, if the Euclidean distance is greater than a preset value, returning to the step 1), and otherwise, entering a step 3); and 3) matching the picture with a template of the container or the frame by adopting a template matching algorithm, and outputting an optimal solution to obtain the position of the container or the frame.
Owner:福建电子口岸股份有限公司
Accurate facial paralysis degree evaluation method and device based on H-B grading under CV
ActiveCN111553249AImprove detection and positioning accuracyAchieving Accurate MeasurementsNeural architecturesNeural learning methodsPhysical medicine and rehabilitationPhysical therapy
The invention discloses an accurate facial paralysis degree evaluation method and device based on H-B grading under CV. The method comprises the following steps: establishing a facial paralysis key point detection model; acquiring to-be-detected data and processing the to-be-detected data; sequentially inputting an expression-free natural state static image, a sequence image I, a sequence image II, a sequence image III and a sequence image IV into the facial paralysis key point detection model to output a plurality of corresponding groups of face shapes, and updating the plurality of groups offace shapes; evaluating the facial paralysis degree of the to-be-detected user; calculating theta1, theta2, theta3, theta4, theta5, theta6, theta7, theta8, theta9, theta10 and theta11 and comparing the theta1, theta2, theta3, theta4, theta5, theta6, theta7, theta8, theta9, theta10 and theta11 with thresholds; and judging the facial paralysis degree of the to-be-detected user through the comparison result, and calculating a facial paralysis index. According to the invention, the detection model has high detection positioning precision, the precision and accuracy of comprehensive evaluation anddetection of the facial paralysis degree of the to-be-detected user are greatly improved, and a powerful support is provided for prevention, discovery and treatment of facial paralysis patients.
Owner:SHENZHEN DJ INNOVATION IND CO LTD
Underground pipeline detection device
InactiveCN107907906AHigh positioning accuracyImprove detection and positioning accuracySeismologyDetection using electromagnetic wavesUnderground pipelineVIT signals
The invention discloses an underground pipeline detection device. The objectives of the invention are to improve underground pipeline detection positioning precision and acquire specific distributioninformation of underground pipelines. The device comprises a support, a controller, at least two signal emitters and at least two signal receivers, wherein the controller, the signal emitters and thesignal receivers are installed on the support. The signal emitters and the signal receivers are connected with the controller. The signal receivers are used for receiving signals emitted by the signalemitters. The controller is used for extracting signals reflected by the underground pipelines from the signals received by the signal receivers, and acquiring position information of the undergroundpipelines according to the reflected signals.
Owner:SHANGHAI ENN NEW ENERGY TECH CO LTD
Container truck head anti-smashing protection system and method, computer storage medium and gantry crane
PendingCN112580517ASimplify the calibration processEasy to useImage enhancementImage analysisNerve networkVision algorithms
The invention discloses a container truck head anti-smashing protection system and method, a computer storage medium and a gantry crane. The system comprises a calibration module for carrying out calibration on a parking point of a container truck in advance; an acquisition module for acquiring the video stream of the calibration module, decoding the video stream into a picture and preprocessing the picture; an AI visual algorithm module for inputting the preprocessed picture into a Mask RCNN neural network algorithm model to obtain a truck head instance segmentation graph and truck head center point coordinates of the container truck; a judgment module for obtaining a parking point of a calibration container truck of the calibration module and a truck head center point of the AI visual algorithm module and calculating the distance between the parking point of the calibration container truck and the truck head center point; and a data recording module for recording historical records of each module. According to the invention, real-time detection, identification and positioning tracking of the container truck head are realized.
Owner:SHANGHAI ZHENHUA HEAVY IND
Smart home device for improving sleep quality and detecting sleep quality
InactiveCN107647849AImprove sleep quality effectSimple structurePillowsSensorsElectricitySleep control
The invention relates to a smart home device for improving sleep quality and detecting the sleep quality. The smart home device comprises a flexible protection surface layer, an elastic lining layer,a bearing gasbag, an air pressure sensor, a pressure sensor, a temperature sensor, a heart rate sensor, a galvanic skin response sensor, a pressure regulating pump and a sleep control circuit, whereinthe elastic lining layer covers the bearing gasbag, the flexible protection surface layer covers the elastic lining layer, the bearing gasbag is communicated with the pressure regulating pump throughan air guiding pipe, the air pressure sensor is embedded into the bearing gasbag, and the pressure sensor, the temperature sensor, the heart rate sensor and the galvanic skin response sensor are allembedded into the flexible protection surface layer. On one hand, the sleep quality and body physiological parameters of a user can be effectively and comprehensively monitored; on the other hand, head postures when the user sleeps can be flexibly adjusted according to the sleep state, and thus the purpose of monitoring and improving the sleep quality effect of the human body is achieved.
Owner:CHENGDU ZHIA TECH CO LTD
A method and device for accurately evaluating the degree of facial paralysis based on facial feature points
ActiveCN111553250BImprove detection and positioning accuracyAchieving Accurate MeasurementsCharacter and pattern recognitionNeural architecturesPattern recognitionRadiology
The invention discloses an accurate facial paralysis degree evaluation method and device based on facial feature points. The method includes: establishing a facial paralysis key point detection model; acquiring data to be detected and processing the data to be detected; inputting the expressionless natural state static image, sequence image 1, sequence image 2, sequence image 3 and sequence image 4 in sequence to the facial paralysis key In the point detection model, the corresponding multiple sets of face shapes are output, and multiple sets of face shapes are updated; the degree of facial paralysis of the user to be detected is evaluated: calculate θ 1 , θ 2 , θ 3 , θ 4 , θ 5 , θ 6 , θ 7 , θ 8 , θ 9 , θ 10 And compare with their thresholds respectively; judge the degree of facial paralysis of the user to be detected by comparing the results, and calculate the facial paralysis index. The invention can make the detection model have higher detection and positioning accuracy, greatly improve the comprehensive evaluation and detection accuracy and accuracy of the facial paralysis degree of the user to be detected, and provide strong support for the prevention, discovery and treatment of facial paralysis patients.
Owner:SHENZHEN DJ INNOVATION IND CO LTD
A sound-vibration artificial intelligence detection and positioning method for tanks and armored vehicles
ActiveCN112710988BAchieve positioningImprove the accuracy of detection and positioning testPosition fixationNeural architecturesNerve networkEngineering
Owner:中国人民解放军32212部队
Battery discharge detection mechanism and its testing equipment
ActiveCN110058169BImprove stabilityImprove detection and processing efficiencyElectrical testingSortingElectrical batteryMechanical engineering
Owner:HUIZHOU JINYUAN PRECISION AUTOMATION EQUIP
Container truck guiding and positioning system and method, computer storage medium and gantry crane
PendingCN112819894ASimplify the calibration processEasy to useImage enhancementImage analysisAlgorithmVision algorithms
The invention discloses a container truck guiding and positioning system and method, a computer storage medium and a gantry crane. The system comprises a calibration module which carries out the calibration of a parking point of a container truck in advance; the acquisition module is used for acquiring the video stream of the calibration module, decoding the video stream into a picture and preprocessing the picture; the AI vision algorithm module is used for inputting the preprocessed picture into a PANet neural network algorithm model to obtain an instance segmentation map of a container or a frame of the container truck, and then carrying out binarization edge detection and minimum area bounding rectangle operation to obtain a central point coordinate of the container or the frame and an included angle between the central point coordinate and the horizontal direction; the judgment module is used for obtaining the parking point of the calibration container truck of the calibration module, the center point coordinate of the container or the frame of the AI vision algorithm module and the included angle between the center point coordinate and the horizontal direction, and calculating the distance between the parking point of the calibration container truck and the center point of the container or the frame; and the data recording module is used for recording historical records of each module. According to the invention, real-time detection, recognition and positioning tracking of the container truck are realized.
Owner:SHANGHAI ZHENHUA HEAVY IND
Target detection and localization method and system based on depth data
ActiveCN105760846BAchieving perspective invarianceAccurate detection and positioningCharacter and pattern recognitionHat matrixComputer science
The present invention proposes a target detection and positioning method and system based on depth data, including: using the depth data collected by a depth data sensor to obtain a depth map, constructing a background model of the depth map, and obtaining the target foreground area under the perspective of the depth map, Carry out preliminary segmentation of the target foreground area; use the projection matrix to map the initially segmented target foreground area to the top-view perspective, and re-segment the target foreground area under the top-view perspective according to the position difference of the target in the horizontal space; extract the foreground area Depth features and training to get the target detection model, use the target detection model to detect and locate the sticky target; carry out the associated tracking of the three-dimensional coordinate position on the detection and positioning results on the top view, and then map the detection and positioning results to the coordinates of the original depth map, Get the final target detection result. The invention can quickly and robustly complete the accurate detection and positioning of the target in the case of severe occlusion and illumination changes.
Owner:河北景康维视智能科技有限公司
Intelligent household indoor air quality detection and emergency oxygen supply device
InactiveCN107726485AMeet improvementMeet health careMechanical apparatusSpace heating and ventilation safety systemsElectrolysisIndoor air quality
The invention relates to an intelligent household indoor air quality detection and emergency oxygen supply device. The intelligent household indoor air quality detection and emergency oxygen supply device comprises a bearing base, a reaction cavity, electrolysis electrodes, electric heating wires, an oxygen exhausting pipe, a hydrogen exhausting pipe, an air quality detection device and a controlcircuit, wherein the reaction cavity, the air quality detection device and the control circuit are all installed on the upper surface of the bearing base; the control circuit is electrically connectedwith the reaction cavity, the electrolysis electrodes, the electric heating wires and the air quality detection device; the reaction cavity is of a closed cavity structure with the axial cross section being square, and comprises a bearing groove and a sealing cover; the oxygen exhausting pipe and the hydrogen exhausting pipe are both connected with the reaction cavity through exhaust ports; the electrolysis electrodes are installed at the bottom of the bearing groove; and the electric heating wires are uniformly distributed on the inner side face of the bearing groove. According to the intelligent household indoor air quality detection and emergency oxygen supply device, on one hand, the indoor air quality can be effectively detected, on the other hand, when the indoor oxygen content is low, oxygen is supplemented for the indoor air, and the requirement of assisting oxygen uptake can also be directly provided for a user.
Owner:CHENGDU ZHIA TECH CO LTD
Accurate facial paralysis degree evaluation method and device based on 3D point cloud segmentation
PendingCN112001213AImprove detection and positioning accuracyAchieving Accurate MeasurementsNeural architecturesAcquiring/recognising facial featuresRadiologyThresholding
The invention discloses an accurate facial paralysis degree evaluation method and device based on 3D point cloud segmentation. The method comprises the following steps: establishing a facial paralysis3D semantic segmentation model; acquiring to-be-detected data and processing the to-be-detected data; sequentially inputting an expression-free natural state static image, a sequence image I, a sequence image II, a sequence image III and a sequence image IV into the facial paralysis 3D semantic segmentation model to output a plurality of corresponding groups of face shapes, and updating the plurality of groups of face shapes; evaluating the facial paralysis degree of a user to be detected; calculating theta 1, theta 2, theta 3, theta 4, theta 5, theta 6, theta 7, theta 8, theta 9, theta 10, theta 11, |theta 12|, a1, a2, b1 and b2 and comparing the above values with threshold values thereof; and judging the facial paralysis degree of the user to be detected, and calculating a facial paralysis index. According to the invention, the detection model has high detection positioning precision, the precision and accuracy of the comprehensive evaluation and detection of the facial paralysis degree of the user to be detected are greatly improved, and a powerful support is provided for the prevention, discovery and treatment of facial paralysis patients.
Owner:SHENZHEN DJ INNOVATION IND CO LTD
One-side gripper-bar-free intermittent motion mechanism and mold pressing technology thereof
ActiveCN107020665ASimple structure optimizationHigh precision of operation controlMetal working apparatusArticle feedersIntermittent motionControl system
The invention discloses a one-side gripper-bar-free intermittent motion mechanism and a mold pressing technology of the one-side gripper-bar-free intermittent motion mechanism. The mechanism comprises a servo motion control system, a servo motor, a driving chain wheel, a driven chain wheel, a chain, paper grippers and a photoelectric detection switch. The servo motion control system, the servo motor and the driving chain wheel are arranged on a wall plate of a machine frame. The chain is connected to the driving chain wheel and the driven chain wheel. The multiple paper grippers are fixed to the chain. The photoelectric detection switch is arranged on one side of a fixed platform. A gripper bar is omitted, the paper gripping operation way that the paper grippers are directly fixed to one chain is adopted, and therefore the equipment structure is optimized and simpler. Meanwhile, the servo motor and the servo motion control system are adopted and matched with the photoelectric detection switch, the operation control precision and detection position precision of the mechanism are far higher than the motion control precision and the positioning precision of a mechanical intermittent motion mechanism in the background art, the operation speed and production efficiency of equipment are improved, the die cutting processing precision and the yield of paper are improved, and the cost of the complete machine is saved.
Owner:玉田县炬兴印刷包装机械制造有限公司
Precise facial paralysis degree evaluation method and device based on semantic segmentation
PendingCN111680545AImprove detection and positioning accuracyAchieving Accurate MeasurementsNeural architecturesAcquiring/recognising facial featuresRadiologyThresholding
The invention discloses a precise facial paralysis degree evaluation method and device based on semantic segmentation. The method comprises the following steps: establishing a facial paralysis semantic segmentation model; acquiring to-be-detected data and processing the to-be-detected data; sequentially inputting the expression-free natural state static image, the sequence image I, the sequence image II, the sequence image III and the sequence image IV into the facial paralysis semantic segmentation model to output a plurality of corresponding groups of face shapes, and updating the pluralityof groups of face shapes; evaluating the facial paralysis degree of the user to be detected; calculating theta1, theta2, theta3, theta4, theta5, theta6, theta7, theta8, theta9, theta10, b1, b2, c1, c2, e1 and e2, and comparing the calculated values with the threshold values; and judging the facial paralysis degree of the to-be-detected user through the comparison result, and calculating a facial paralysis index. According to the invention, the detection model has high detection positioning precision, the precision and accuracy of comprehensive evaluation and detection of the facial paralysis degree of the to-be-detected user are greatly improved, and a powerful support is provided for prevention, discovery and treatment of facial paralysis patients.
Owner:SHENZHEN DJ INNOVATION IND CO LTD
A low-altitude unmanned aerial vehicle passive acoustic detection and positioning device
ActiveCN107884749BImprove detection and positioning accuracyImprove monitoring effectPosition fixationInformation processingData acquisition
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
A method and device for accurate evaluation of the degree of facial paralysis based on h-b grading under cv
ActiveCN111553249BImprove detection and positioning accuracyAchieving Accurate MeasurementsNeural architecturesNeural learning methodsPattern recognitionRadiology
Owner:SHENZHEN DJ INNOVATION IND CO LTD
Dynamic balance test method and device thereof
InactiveCN101694411BImprove detection and positioning accuracyReduce processStatic/dynamic balance measurementPulse frontDynamic balance
The invention provides a dynamic balance test method and a device thereof. The dynamic balance test method is used for testing workpieces with peripheries distributed with grooves uniformly and includes steps as follows: axially rotating a workpiece; utilizing a non-contact sensor to test the grooves on the workpiece at a fixed position and generate a pulse signal, wherein the pulse signal generated by the non-contact sensor when the workpiece begins to rotate is used as an unbalance datum zero-degree signal; dividing frequency of the pulse signal, wherein multiple of frequency dividing is equal to the amount of the grooves on the workpiece; and defining unbalance amount and unbalance angle according to the pulse signal after frequency dividing, wherein a first pulse front edge of the unbalance datum zero-degree signal is used as a zero-angle position of the workpiece when defining the unbalance angle. The dynamic balance test method and the device thereof remove special processes on the surface of the workpiece and save working procedures, thereby increasing positioning accuracy of unbalance angle tests. The dynamic balance test method and the device thereof are adoptable to automation of dynamic balance.
Owner:BEIJING KEEVEN PRECISION MACHINERY +1
Intermittent Motion Mechanism and Its Molding Technology of Unilateral Toothless Row
ActiveCN107020665BSimple structure optimizationHigh precision of operation controlMetal working apparatusArticle feedersIntermittent motionControl system
Owner:玉田县炬兴印刷包装机械制造有限公司
Instrument detection method based on one-shot mechanism
PendingCN113792721AImprove detection and positioning accuracyImprove generalization abilityCharacter and pattern recognitionNeural architecturesData setEngineering
The invention provides an instrument detection method based on a one-shot mechanism. The method comprises the following steps: firstly, performing enhancement processing on a collected instrument image data set by utilizing size transformation and perspective transformation; constructing an instrument detection network model based on a one-shot mechanism, wherein the instrument detection network model comprises a feature extraction twin network module based on ResNet-18, an RPN module, a ROIAlign pooling layer and a feature fusion network module based on Grid Head exchange; training the network model by using the enhanced image data set to obtain a trained network; and finally, processing a to-be-detected instrument image by using the trained network to obtain a final detection result. The method has the capability of detecting the dial position of any quadrilateral instrument, and has relatively high instrument detection precision.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Unmanned aerial vehicle detection positioning system and method
ActiveCN111208540AImprove detection and positioning accuracyImplement detectionSatellite radio beaconingSatellite antennasUncrewed vehicle
The invention provides a detection positioning system and method of an unmanned aerial vehicle and relates to the technical field of detection positioning. The system comprises a central processing station and a plurality of monitoring stations, wherein the central processing station comprises a first satellite module, a first processor, a first satellite antenna and a first data link module, thefirst satellite module and the first data link module are respectively connected with the first processor, each monitoring station comprises a second satellite module, a second processor, a second satellite antenna, an air-ground link signal interception module, an interception antenna, a timestamp calibration module and a second data link module, the air-ground link signal interception module isrespectively connected with the interception antenna and the timestamp calibration module, and the second satellite module, the air-ground link signal interception module, the timestamp calibration module and the second data link module are respectively connected with the second processor. The system is advantaged in that detection and positioning precision of the unmanned aerial vehicle can be improved.
Owner:XIAN UNIV OF TECH
A kind of directional playback adjustment device for intelligent audio
ActiveCN107613427BImprove efficiencyReduce noise pollutionFrequency/directions obtaining arrangementsSound waveEngineering
The invention relates to a directional playing regulation device for an intelligent loudspeaker. The directional playing regulation device comprises a base, a bearing cavity, a rotary table mechanism,an annular guide rail, a distance measuring device, a human body sensor, a decibel detecting device and a control circuit. The annular guide rail and the rotary table mechanism are arranged on the upper surface of the base, and the base is mutually connected with the bearing cavity through the annular guide rail and the rotary table mechanism. The distance measuring device, the human body sensorand the decibel detecting device are embedded to the outer surface of the bearing cavity and axially perpendicular to the bearing cavity. The bearing cavity comprises a positioning groove, adjusting plates, adjustment driving mechanisms, a reflective plate, slide grooves and positioning fasteners. The directional playing regulation device is simple in structure, flexible and convenient to use, high in universality and high in detecting and positioning precision, accurate positioning of audience distribution positions and the distance between audiences and the loudspeaker can be realized effectively, directional regulation of sound waves sent by the loudspeaker is realized, and accordingly loudspeaker equipment utilization efficiency is remarkably improved while noise pollution is abated.
Owner:广州市双泰电子科技有限公司
Large aperture three-dimensional array structure
ActiveCN103364760BLarge apertureSimple structure, reliable and convenientPosition fixationLower limitEngineering
The invention relates to a large aperture three-dimensional array structure, which comprises a center support platform and a plurality of round rods (11), wherein the round rods (11) and the center support platform are fixedly assembled, the center support platform comprises a camera base (7), a front end plate (6), a cylinder (4) and a platform installation base (1), which are sleeved coaxially sequentially, the cylinder (4) is connected to the platform installation base (1) through a pin at the front end, the other end of the cylinder (4) is in cup joint with the front end plate (6), the camera base (7) is sleeved on the front end plate (6); array bases (10) are arranged on each round rod (11), and each round rod (11) is arranged on the platform installation base (1) through a round rod connecting piece (2) and a round rod support piece (3) on the platform installation base (1), and maintains a certain angle with the center line of the center support platform. The structure has a simple structure, the array aperture is increased, the measuring frequency lower limit is expanded, and improvement of the detection positioning precision is facilitated.
Owner:中科声相(天津)科技有限公司
A detection and positioning system and method for an unmanned aerial vehicle
ActiveCN111208540BImprove detection and positioning accuracyImplement detectionSatellite radio beaconingSatellite antennasTimestamp
The invention provides a detection positioning system and method of an unmanned aerial vehicle and relates to the technical field of detection positioning. The system comprises a central processing station and a plurality of monitoring stations, wherein the central processing station comprises a first satellite module, a first processor, a first satellite antenna and a first data link module, thefirst satellite module and the first data link module are respectively connected with the first processor, each monitoring station comprises a second satellite module, a second processor, a second satellite antenna, an air-ground link signal interception module, an interception antenna, a timestamp calibration module and a second data link module, the air-ground link signal interception module isrespectively connected with the interception antenna and the timestamp calibration module, and the second satellite module, the air-ground link signal interception module, the timestamp calibration module and the second data link module are respectively connected with the second processor. The system is advantaged in that detection and positioning precision of the unmanned aerial vehicle can be improved.
Owner:XIAN UNIV OF TECH
A human body positioning sensing device for intelligent audio
ActiveCN107707996BImprove efficiencySimple structureTransducer casings/cabinets/supportsHuman bodyEngineering
Owner:上海昕鼎网络科技有限公司
Anti-intrusion artificial intelligence radar video monitoring system
PendingCN112866645AEasy to excludeTimely exclusionTelevision system detailsColor television detailsPattern recognitionVideo monitoring
The invention provides an anti-intrusion artificial intelligence radar video monitoring system, and relates to the technical field of artificial intelligence and radar technology application, and the video monitoring system is mainly composed of a radar device, a radar information processing workstation, a video monitoring camera, a data processing server, a communication link device and a terminal device. A radar positioning technology, a video monitoring technology and an artificial intelligence visual technology are effectively combined and applied to regional intrusion prevention and control, the type of an intrusion target can be actively identified, the intrusion target can be positioned and the type of the intrusion target can be identified without matching with vehicle-mounted or airborne response equipment, and judgment and taking of countermeasures are facilitated; the video monitoring system provided by the invention can display the video image of the intruding target in real time, so that the intruding target can be eliminated in time.
Owner:二连浩特赛乌素机场管理有限公司
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