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30results about How to "Effective perception" patented technology
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Brain electric and eye electric signal decision fusion method for identifying control intention
InactiveCN102521505AImprove reliabilityEffective perceptionWheelchairs/patient conveyanceInvalid friendly devicesElectrooculogramsIntent recognition
The invention relates to a brain electric and eye electric signal decision fusion method for identifying control intention, comprising the following steps: extracting relative wavelet packet energy of pre-processed EEG (electroencephalogram) as motor imagery feature and taking typical variable of pre-processed EOG (electrooculogram)as motor imagery feature; applying the constructed state classifier based on the motor imagery feature of the EEG to obtain state classification result; and applying the constructed motor imagery multi-class classifier based on the motor imagery feature of the EOG to obtain motor imagery classification result; finally, and using the state classification result obtained by the EEG and the motor imagery classification result obtained by the EOG to perform decision fusion so as to obtain identification result of the control intention represented by the motor imagery. The method of the invention can effectively solve interference for identification result of the control intention caused by eye movement irrelevant to the control intention and improve accuracy of the motor imagery identification and reliability of the control intention information.
Owner:HANGZHOU DIANZI UNIV
Interactive visual method and device facing layering data
InactiveCN103164520AClear presentation hierarchySame aspect ratioSpecial data processing applicationsLarge scale dataComputer science
The invention discloses an interactive visual method and a device facing layering data. The method comprises the flowing special steps: step1, a layering data object is acquired, and a suitable weight mapping function is set according to characteristics of the layering data, characteristics of application scenarios and special requirements of a user; step2, the weight of each node of the layering data is defined through the mapping function; step3, a root node of the layering data is expressed by selecting round space or arbitrary polygonal space; step 4, other nodes are expressed to be circles with specific radiuses according to the weight of each node of the layering data; step5, the arrangement of layering circles is produced due to the adoption of a circular layout method; and step 6, an interactive visual interface is generated. The layering circular layout generated through the method corresponds to a Voronoi tree graph layout, various visual coding modes are provided, the circular layout is optimized and adjusted in real time, various interactive modes are provided, and the layering circular layout can be applied to multi-point touch control equipment. The method and the device not only can be used for processing layering data of ordinary data sizes but also can be used for processing large-scale data sets.
Owner:SHANDONG UNIV
Artificial electronic cochlea and method for processing speech with double stimulation rates
ActiveCN101773429AImprove speech recognition performanceSolve the problem of missing low-amplitude envelope informationEar treatmentSpeech ProcessorElectrical impulse
The invention discloses an artificial electronic cochlea, a speech processor and a method for processing a speech with double stimulation rates. The speed processor and the method are applied to the artificial electronic cochlea, and the method comprises the following steps of: firstly, performing preprocessing, band-pass filtering, half-wave rectification and low-pass filtering on speech signalsto acquire the envelope amplitude of each channel, and adjusting the current amplitude to a working amplitude range; secondly, selecting a plurality of channels of which the envelope amplitudes are more than or equal to a threshold value to form a first part (high-amplitude) channel, and performing pulse sequence modulation with a first (high) stimulation rate on the first part channel; selectinga plurality of channels of which the envelop amplitudes are smaller than the threshold value to form a second part (low-amplitude) channel, and performing pulse sequence modulation with a second (low) stimulation rate on the second part channel; and adopting electronic pulse sequences of the first and second part channels after modulation to stimulate corresponding stimulating electrodes. The artificial electronic cochlea, the speech processor and the method realize the aim of transmitting information on the envelope amplitudes of all the channels to an artificial electronic cochlea patient, and effectively improve the speech recognition effect of the artificial electronic cochlea.
Owner:ZHEJIANG NUROTRON BIOTECH
Porous-iron-core-structure micro-fluxgate sensor
InactiveCN104977548AGuaranteed economyReduce power consumptionMagnetic field measurement using flux-gate principleSiliconMaterials science
The invention discloses a micro-fluxgate sensor having a porous iron core. A silicon substrate (1) serves as a substrate supporting layer; an excitation coil (2) and an induction coil (3) adopt a three-dimensional solenoid structure, and upper and lower layers are communicated through two-end through holes (4); an iron core (5) adopts a soft magnetic material and a porous structure, and holes in the iron core separate the iron core into a plurality of groups of local variable cross-section structures; polyimide (6) serves as an insulating layer between the layers respectively; the excitation coil and the induction coil are wound alternatively in a manner that the excitation coil is corresponding to the nonporous places, and the induction coil is corresponding to the porous places; and the excitation coil and the induction coil are led out through bonding pads (7,8). The micro-fluxgate sensor can effectively reduce power consumption of a micro-fluxgate, and sensitivity is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Estimation method of image haze concentration
InactiveCN107093173AEffective perceptionAccurate local haze sensitive featuresImage enhancementImage analysisFeature vectorEstimation methods
The invention discloses an estimation method of image haze concentration. The estimation method includes a first step of transforming the space, extracting local blocks, and calculating feature vectors; a second step of normalizing the feature vectors; and a third step of obtaining the haze concentration of an input haze image by using the respective relations of feature vectors of a clear image MVG model and a haze image MVG model with the normalized feature vectors of the local blocks of the input haze image. In the method, the concept of the feature vectors of the image local blocks is first proposed, the clear image MVG model and the haze image MVG model are introduced, the accurate local haze sensitive feature of each pixel in the haze image is obtained through adaptive calculation, and the haze concentration is estimated; in the calculation process, only the feature vector of each local block is required, and the calculated amount is small; and the method can be used for effectively perceiving the haze concentration without the need of a reference image, and meanwhile has the advantage of high calculation speed.
Owner:HUNAN UNIV
Control method of capacitive touch handle based on multi-sensing system
ActiveCN111610865ASimple structureEasy to operateCharacter and pattern recognitionNeural architecturesCapacitanceNerve network
The invention relates to a control method of a capacitive touch handle based on a multi-sensing system, which is characterized in that the touch handle is wrapped with a capacitor array flexible pressure sensor, a tension and compression sensor is arranged at one end of the touch handle along the length direction of the handle, and an inertial measurement unit (IMU) is arranged in the touch handle; the method comprises the following specific steps: acquiring a displacement signal acquired by a tension-compression sensor, detecting stress change along the vertical direction of a handle, and simultaneously acquiring linear accelerations and rotation angular rates of the handle from three directions, which are measured by an inertial measurement unit (IMU); obtaining a grabbing image when a human hand grabs the touch handle, and processing the grabbing image; and determining a holding intention by using a convolutional neural network model, and carrying out multi-perception information fusion. The method is suitable for collecting human hand grabbing information in contact type man-machine cooperation, the human hand posture can be estimated in real time, and the intention of an operator can be accurately judged.
Owner:HEBEI UNIV OF TECH
Energy-saving building heating and ventilation system
ActiveCN112268347AAvoid feeling unwellEffective perceptionMechanical apparatusSpace heating and ventilation safety systemsAir filtrationAir filter
The invention discloses an energy-saving building heating and ventilation system. The energy-saving building heating and ventilation system comprises a floor detection unit, a floor external environment detection unit, a natural wind conveying opening and closing control unit, an outdoor air quality detection unit, an indoor air quality detection unit, an air filtering unit, a harmful gas detection unit, a natural wind ventilation control main machine, a floor main ventilation pipeline conveying module and a floor ventilation branch pipeline opening and closing module, a floor ventilation branch pipeline conveying module, a temperature analysis control module, an active temperature adjustment unit, cold source equipment, heat source equipment, an in-floor information acquisition unit, a pedestrian flow detection module, a pedestrian flow analysis module, an area division module, a wind direction control main machine and an air conditioner air outlet direction turning module. The air temperature adjustment amounts required by different areas are analyzed through the pedestrian flow analysis module, and then the area division module carries out division on the air outlet amounts of the different areas, so that the unnecessary heating and ventilation air outlet amounts are reduced, and the energy-saving effect is achieved.
Owner:苏州集畅自动化科技发展有限公司
Science and technology service-oriented reason graph construction method, device and equipment and storage medium
ActiveCN112199512AEffective perceptionNatural language data processingOther databases indexingCustomer requirementsUser needs
The invention provides a science and technology service-oriented reason graph construction method, device and equipment and a storage medium. The reason graph construction method comprises the following steps: obtaining a science and technology service demand text; preprocessing the science and technology service demand text; performing event extraction on the science and technology service demandtext; performing event relationship extraction on the science and technology service demand file; based on the extracted demand events and the logic relationship between the demand events, establishing a fact graph which is a directed looped graph, with nodes representing the demand events and directed edges representing the logic relationship between the demand events; and calculating an evolution probability between two demand events connected with each directed edge, and adding the evolution probability as a weight value to the directed edge. By constructing a science and technology service-oriented reason graph, the demand event directly related to the user demand and other demand events most closely related to the user demand can be quickly matched, so that the customer demand can bemore effectively perceived.
Owner:PEKING UNIV +2
Water leakage condition reconstruction method of large civil engineering structure based on deep learning
ActiveCN112632680AMeasured water leakageTimely leakage monitoring and reconstructionGeometric CADDesign optimisation/simulationWater leakageData set
The invention provides a water leakage condition reconstruction method for a large civil engineering structure based on deep learning, and the method comprises the steps of obtaining RSSI (Received Signal Strength Indicator) data through measurement according to a radio wave propagation path loss principle, and obtaining a loss factor distribution image through a water leakage condition reconstruction model, wherein the model training process includes: firstly, an RSSI sequence positive problem simulation numerical value is solved and normalized to obtain an RSSI sequence data set and a path loss factor image data set, a positive problem scale, attribute dimensions and label image dimensions are obtained through data to determine a model framework and initialization parameters, and then a water leakage condition reconstruction model is obtained through a training learning algorithm. According to the method, the reconstruction of the water leakage state of the large civil engineering structure can be realized more timely on a larger area and a larger scale through the correlation mapping relationship between the RSSI data and the loss factor distribution image which are easy to obtain, and the structural damage, economic loss and casualties caused by water leakage disasters can be reduced.
Owner:TONGJI UNIV
Mecanum wheel intelligent guide vehicle based on double-laser radar fusion
ActiveCN111660946AEasy to adjustEasy to installLoading/unloading vehicle arrangmentResilient suspensionsRadarStructural engineering
The invention belongs to the technical field of guide vehicles and relates to a Mecanum wheel intelligent guiding vehicle based on double-laser radar fusion. The device comprises a bottom plate, a second connecting block and a rotating plate; the bottom end of the bottom plate is connected with a first clamping block; a fixing groove is formed in the bottom end of the first clamping block; a firstsliding block is arranged on the inner side of the fixing groove; an induction radar is mounted at the bottom end of the first sliding block; a small wheel is arranged on the right side of the induction radar; a first connecting block is arranged on the right side of the small wheel; a rotating column is arranged at the top end of the first connecting block; a hollow column is connected to the top end of the rotating column; a connecting column is arranged on the inner side of the hollow column; a lifting mechanism is fixed to the top end of the connecting column; the second connecting blockis arranged at the top end of the bottom plate. The Mecanum wheel intelligent guide vehicle based on double-laser radar fusion is provided with a damping device facilitating vibration reduction, has the effect of sensing the surrounding environment in an all-around mode, and is convenient for a user to install, adjust and overhaul.
Owner:福勤智能科技(昆山)有限公司
Offshore photovoltaic platform and working method thereof
ActiveCN106982025BReduce time to corrodeExtend your lifePhotovoltaic supportsSolar heating energyHinge angleWater collection
The invention relates to a marine photovoltaic platform and an operating method of the marine photovoltaic platform. The marine photovoltaic platform comprises a base body and a plurality of hinges arranged around the base body, wherein the base body comprises a bowl-shaped water collection part, a cylindrical floating part and a cone-shaped gravity part for stabilizing the gravity and adjusting the buoyancy force of the platform from top to bottom; one end of each of the hinges is articulated with the periphery of the water collection part, and the upper surface of each hinge is provided with a plurality of photovoltaic panels; and the hinges can be enclosed with the water collection part after rotating along articulated points to form a sealed cavity. According to the marine photovoltaic platform and the operating method of the marine photovoltaic platform, marine photovoltaic power generation equipment is used for carrying out sealing to be isolated with the outside in the period of time that solar power cannot be utilized for power generation at night, so that the time that the photovoltaic power generation equipment is eroded is reduced; and due to the fact that the night approximately accounts for half of the whole day, the time that the photovoltaic power generation equipment is eroded can be effectively reduced by half, so that the service life of the photovoltaic power generation equipment is greatly prolonged.
Owner:临沭县益兴供汽维修服务有限公司
Roadside camera and 4D millimeter wave fused target detection method, equipment and medium
PendingCN113655494AEffective perceptionWith band characteristicsCharacter and pattern recognitionNeural architecturesPoint cloudEngineering
The invention relates to a roadside camera and 4D millimeter wave fused target detection method, equipment and a medium. The target detection method comprises the following steps: obtaining a first image of a roadside camera and a first point cloud of a 4D millimeter wave radar; projecting the first point cloud to the first image, adding distance information to the first image, and obtaining a second image; taking the second image as the input of a depth completion convolutional network, and obtaining a third image which is a dense depth map; converting the third image into a second point cloud, and encoding to generate a fourth image; inputting the fourth image into a convolutional neural network, and carrying out target detection to obtain a target frame; and mapping the target frame into a 3D frame in a camera coordinate system, and adding speed information on the 3D frame based on the first point cloud. Compared with the prior art, the method has the advantages of long sensing distance, accurate target positioning and the like.
Owner:上海智能网联汽车技术中心有限公司
An energy-saving building HVAC system
ActiveCN112268347BAvoid feeling unwellEffective perceptionMechanical apparatusSpace heating and ventilation safety systemsAir filtrationAir filter
The invention discloses an energy-saving building HVAC system, comprising a floor detection unit, an external environment detection unit, a natural wind conveying opening and closing control unit, an outdoor air quality detection unit, an indoor air quality detection unit, an air filter unit, and a harmful gas detection unit. Unit, natural wind ventilation control host, floor main ventilation duct delivery module, floor ventilation branch duct opening and closing module, floor ventilation branch duct delivery module, temperature analysis control module, active temperature regulation unit, cold source equipment, heat source equipment, floor information Acquisition unit, human flow detection module, human flow analysis module, area division module, wind direction control host, and air conditioner outlet direction reversal module. The air temperature adjustment required by different areas is analyzed through the human flow analysis module, and then the air volume is divided into different areas by the area division module, thereby reducing unnecessary HVAC air output and achieving energy-saving effects.
Owner:苏州集畅自动化科技发展有限公司
A control method for a capacitive tactile handle based on a multi-sensory system
ActiveCN111610865BSimple structureEasy to operateCharacter and pattern recognitionNeural architecturesHand graspTouch Senses
The invention is a control method of a capacitive tactile handle based on a multi-sensory system. The tactile handle is wrapped with a capacitive array flexible pressure sensor, and a tension and pressure sensor is installed on one end of the tactile handle along the length direction of the handle. device IMU; the specific steps of the method are: obtain the displacement signal collected by the tension and pressure sensor, detect the force change along the vertical direction of the handle, and simultaneously obtain the linear acceleration and rotation of the handle from three directions measured by the inertial measurement device IMU Angular rate; obtain the grasping image when the human hand grasps the tactile handle, and process the grasping image; use the convolutional neural network model to determine the handholding intention and perform multi-sensory information fusion. This method is suitable for the collection of human hand grasping information in contact human-computer cooperation, and can estimate the human hand posture in real time and accurately judge the operator's intention.
Owner:HEBEI UNIV OF TECH
Position indication method and device, electronic equipment and storage medium
PendingCN113144602AIntuitive perceptionFast perceptionVideo gamesGraphical user interfaceEngineering
The embodiment of the invention provides a method and device for indicating the position of a virtual object in a game, electronic equipment and a storage medium, and the method comprises the steps that the content displayed by a graphical user interface of a terminal comprises a part of a three-dimensional game scene and a first virtual object located in the three-dimensional game scene, in the game process, for the first virtual object controlled by a player, a terminal obtains position information of a second virtual object relative to the first virtual object in a three-dimensional game scene, and then displays a position indication identifier for the second virtual object in a graphical user interface according to the position information, a position indication identifier is used for indicating the vertical position of the second virtual object relative to the first virtual object, so that in a game, the terminal displays the vertical position of the second virtual object, the player can intuitively, quickly and effectively perceive the positions of other virtual objects according to the displayed position indication identifier, and, the positions of virtual objects at different vertical heights can be sensed.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD
Intelligent equipment application identification method based on magnetic field data side channel analysis
PendingCN113569930AImprove accuracyEffective perceptionCharacter and pattern recognitionMachine learningFeature extractionData acquisition
The invention discloses an intelligent equipment application identification method based on magnetic field data side channel analysis, which comprises an offline training stage and an online identification stage, and is characterized in that the offline training stage sequentially comprises four steps of magnetic field data acquisition, data preprocessing, data feature extraction and classification model training; the online identification stage sequentially comprises four steps of magnetic field data acquisition, data preprocessing, data feature extraction and application recognition, and the steps of magnetic field data acquisition and data feature extraction are the same as the steps of magnetic field data acquisition and data feature extraction in the offline training stage; compared with the step of data preprocessing in the offline training stage, the step of data preprocessing adds identification of the application starting window. And the application identification step is to input the data features extracted in the previous step into the classification model trained in the offline training stage to obtain a classification result. According to the invention, the application which is being used by the user can be perceived under the condition that the system authority is not obtained.
Owner:NANJING YIZHI CYBERSPACE TECH INNOVATION INST CO LTD
Shell temperature monitoring point selection method for sensing hot-spot temperature of GIS (Gas Insulated Switchgear) disconnecting switch
PendingCN114357828AChoose reliableIntuitive temperature lawDesign optimisation/simulation3D modellingMonitoring siteHeat analysis
The invention discloses a shell monitoring point selection method for sensing the internal hot spot temperature of a GIS disconnecting switch. The method comprises the implementation steps that a finite element simulation three-dimensional model of the GIS disconnecting switch is established; setting material attributes of each part of the model; performing mesh generation on the model through local mesh control; setting boundary conditions and excitation conditions of electromagnetic field calculation; carrying out electromagnetic field loss calculation; introducing the loss as a heat source into the fluid-temperature field; setting boundary conditions and excitation in a fluid-temperature field; carrying out steady-state thermal analysis calculation; extracting a flow line of an SF6 fluid domain from thermal analysis calculation; and selecting temperature monitoring points in the shell according to the integral streamline distribution and the characteristic streamline of the fluid domain. According to the method, selection of the monitoring points can be explained from the perspective of heat transfer of the hot spots, point selection is more reliable, the temperature rule of the GIS disconnecting switch is more visual, a large amount of time is saved, efficiency is high, and the method is practicable.
Owner:WUHAN UNIV
Artificial electronic cochlea and method for processing speech with double stimulation rates
ActiveCN101773429BImprove speech recognition performanceSolve the problem of missing low-amplitude envelope informationEar treatmentSpeech ProcessorPulse sequence
Owner:ZHEJIANG NUROTRON BIOTECH
Brain electric and eye electric signal decision fusion method for identifying control intention
InactiveCN102521505BImprove reliabilityEffective perceptionWheelchairs/patient conveyanceInvalid friendly devicesElectrooculogramsDependability
The invention relates to a brain electric and eye electric signal decision fusion method for identifying control intention, comprising the following steps: extracting relative wavelet packet energy of pre-processed EEG (electroencephalogram) as motor imagery feature and taking typical variable of pre-processed EOG (electrooculogram)as motor imagery feature; applying the constructed state classifier based on the motor imagery feature of the EEG to obtain state classification result; and applying the constructed motor imagery multi-class classifier based on the motor imagery feature of the EOG to obtain motor imagery classification result; finally, and using the state classification result obtained by the EEG and the motor imagery classification result obtained by the EOG to perform decision fusion so as to obtain identification result of the control intention represented by the motor imagery. The method of the invention can effectively solve interference for identification result of the control intention caused by eye movement irrelevant to the control intention and improve accuracy of the motor imagery identification and reliability of the control intention information.
Owner:HANGZHOU DIANZI UNIV
Display method, apparatus, electronic device and computer program product
ActiveCN108140362BTake advantage ofEffective perceptionCathode-ray tube indicatorsColor imageComputer graphics (images)
Display method, device, electronic equipment and computer program product, the method includes: collecting depth data of the environment; determining the mapping relationship between each depth value and color combination; generating the depth data of the environment according to the depth data and the mapping relationship A pseudo-color image; displaying the pseudo-color image superimposed on the image of the environment. In this application, the depth data of the environment is mapped to obtain a pseudo-color image, and the pseudo-color image is superimposed on the current environment image for enhanced display, which can make full use of the visual field of low-vision patients without affecting the visual field of low-vision patients. Residual vision and assist it to effectively perceive the distance of objects in the environment.
Owner:CLOUDMINDS SHANGHAI ROBOTICS CO LTD
Reconstruction method of seepage water condition of large-scale civil engineering structures based on deep learning
ActiveCN112632680BMeasured water leakageTimely leakage monitoring and reconstructionGeometric CADDesign optimisation/simulationWater leakageData set
The invention provides a method for reconstructing the water leakage condition of large-scale civil engineering structures based on deep learning, which can measure the received signal strength indicating RSSI data according to the principle of radio wave propagation path loss, and obtain the loss factor distribution through the reconstruction model of the leakage water condition. The image, among which, the model training process is as follows: first, the RSSI sequence positive problem is numerically solved and normalized to obtain the RSSI sequence data set and the path loss factor image data set, and the positive problem scale, attribute dimension and label image are obtained from the data. Dimension to determine the model architecture and initialization parameters, and then obtain the leakage water reconstruction model through training the learning algorithm. By easily obtaining the correlation mapping relationship between the RSSI data and the loss factor distribution image, this method can realize the reconstruction of the seepage water state of large-scale civil engineering structures in a larger area and a larger scale in a more timely manner, and can reduce the leakage caused by water leakage disasters. structural damage, economic loss and casualties.
Owner:TONGJI UNIV
A fault location device for oil-immersed transformer based on fiber Bragg grating
ActiveCN104949915BOperating hazardMeet the special requirements of hydrogen production fault locationMaterial analysis by optical meansGratingTransformer
The invention discloses an oil-immersed transformer fault location device based on an optical fiber Bragg grating and belongs to the scope of transformer fault detection equipment. The device uses a palladium-plated silver alloy film as a hydrogen sensor for dissolving hydrogen in oil. Specifically, a palladium-silver alloy film is plated on the grid area of an optical fiber Bragg grating as a fiber Bragg grating hydrogen sensor for dissolving hydrogen in oil. A plurality of optical fiber Bragg grating hydrogen sensors are fused through single-mode optical fibers and arranged on each surface of the transformer cavity to realize three-dimensional monitoring of dissolved hydrogen in the transformer cavity. The invention overcomes the disadvantages of the existing fault location device, such as off-line hanging cover inspection, and the like, and can meet the special requirements of hydrogen production fault location inside the oil-immersed transformer. The sensor uses wavelength demodulation and is not affected by changes in light intensity. Moreover, the sensor will not cause harm to the operation of the transformer, and is safe and reliable.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
Three-dimensional RIS-assisted coal mine communication and inductance integrated network optimization method and device
PendingCN114520980AEffective perceptionEfficient communicationTransmission monitoringNetwork planningUser perceptionNetwork model
The invention provides a three-dimensional RIS-assisted coal mine communication and inductance integrated network optimization method and device, and relates to the field of communication technologies and coal mine safety detection. Comprising the steps that a coal mine communication network model with a three-dimensional intelligent surface is established, and the model comprises the three-dimensional intelligent surface, a user needing communication, a sensing area, a small portable sensing integrated base station and a ground data center; the method comprises two optimization algorithms: 1, optimizing a perception communication time distribution strategy in a coal mine communication network model; secondly, the reflection coefficient matrix of the three-dimensional intelligent surface is optimized; on the premise of ensuring basic communication requirements of a coal mine, coal mine safety information is sensed and detected more effectively; on the premise of real-time monitoring at the corresponding security level, more information can be sensed as much as possible; and the RIS phase shift matrix is optimized to improve the channel condition, so that the communication efficiency is maximized. When a dangerous accident such as a collapse event occurs in a coal mine, the RIS can obtain accident information according to the change of the sensing information so as to reduce the casualty probability.
Owner:SHANXI UNIV
Circuit, method and chip for detecting signal
ActiveCN114491519BLow costEffective perceptionElectronic circuit testingInternal/peripheral component protectionHemt circuitsComputer science
Embodiments of the present invention provide a circuit, method and chip for detecting signals, the circuit at least includes: a delay unit and an output unit; the delay unit includes a first link and a second link, and the first link The delay of the path is greater than the delay of the second link, the first link is used to output the status signal when the signal to be tested passes, and the second link is used to output the sampling pulse when the signal to be tested passes ; The output unit is used to sample the state signal through the sampling pulse to obtain a sampling signal. The cost of the circuit for detecting the signal is low, no clock is needed, the change of the external environment can be effectively sensed, and the collected signal is stable and effective.
Owner:BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +1
Voltage and current acquisition assembly based on distribution automation fusion switch
PendingCN114184950AEffective perceptionAccurate Repair InformationCurrent/voltage measurementCircuit arrangementsPower gridDistribution grid
The invention discloses a voltage and current acquisition assembly based on a distribution automation fusion switch, and particularly relates to the technical field of assembly working state recognition algorithm research. Data sampling abnormity caused by problems of a power grid is eliminated through a terminal topological relation in the power distribution network, and meanwhile, whether a component is damaged or loosened is judged through 288-point sampling data characteristics, so that accurate maintenance information is provided for operation and maintenance personnel of a power system, and the maintenance efficiency is improved. Considering the influence of the distribution automation terminal on the accuracy and reliability of a sampling assembly in the field installation environment and the operation age limit, the current and voltage sampling assembly of the distribution automation primary and secondary fusion switch is subjected to abnormal identification and timely defect elimination, so that the effective perception of the distribution network is realized, and the accuracy and reliability of the distribution automation terminal are improved. And effective basic data support is provided for reliable operation of the power distribution network.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
Multi-target tracking method, device, equipment and medium
ActiveCN114820699AGuaranteed running speedEffective perceptionImage enhancementImage analysisFeature extractionComputer graphics (images)
The invention provides a multi-target tracking method, which is used for solving the technical problems of uncontrollable multi-model calling efficiency, low feature extraction and recognition efficiency, easy target loss and low target tracking accuracy in the prior art, and comprises the following steps: obtaining a first video frame and a second video frame, the second video frame is a previous video frame adjacent to the first video frame; respectively processing the first video frame and the second video frame through a target detection network, determining a plurality of first targets in the first video frame and a plurality of second targets in the second video frame, and obtaining pose information corresponding to each first target and each second target; respectively calculating predicted pose information of each second target in the first video frame according to the pose information corresponding to the plurality of second targets; and performing target matching based on the predicted pose information and the pose information corresponding to the plurality of first targets, and performing tracking according to a target matching result.
Owner:XIAOMI EV TECH CO LTD
Method and system for P-CSCF to identify forbidden calling subscriber
InactiveCN101141691BAccurate perceptionTimely perceptionAssess restrictionMessaging/mailboxes/announcementsComputer scienceStatus changed
The present invention provides a P-CSCF calling forbidden user identifying method and system which is used in an IP multimedia subsystem, wherein, the method comprises the following processes: during the S-CSCF inception registering process of the equipment of the user, the S-CSCF carries the information of the calling forbidden user in a response message of a structural registering success; after receives the response message of registering success, the P-CSCF updates the information of the calling forbidden user and the information of the non-forbidden user according to the response messageof registering success; when a home subscriber server informs the S-CSCF that the identity identification of the user is revised as the calling forbidden, the S-CSCF carries the information of the calling forbidden user in a structural subscribed informing message; after receives the subscribed informing message, the P-CSCF analyzes the subscribed informing message, to update the information of the calling forbidden user and the information of the non-forbidden user.
Owner:ZTE CORP
Bionic tactile sensor based on friction nanometer generator
ActiveCN113162457AResistance to Error VibrationImprove perceptionForce measurementFriction generatorsTouch SensesEngineering
The invention provides a bionic tactile sensor based on a friction nanometer generator. The sensor comprises a supporting device which is composed of four supporting rods, an upper limiting disc, and a pedestal; a touch sensing device is connected with the supporting device and is composed of a touch rod making contact with an external object, a touch block connected with the touch rod, a front power generation unit, a rear power generation unit, a left power generation unit and a right power generation unit, the touch block is connected with an adjustable bolt through a memory metal spring, and the adjustable bolt is connected with a threaded hole in the pedestal; the touch rod transmits an external force to the power generation unit through the touch block under the action of an external object, the power generation unit generates inductive charges, and a signal for sensing the external object is output by a wire connected with the power generation unit; and after the external force disappears, the touch rod restores to an original position. The sensor is reasonable and firm in structural design, can resist interference caused by self movement, and can sensitively sense the characteristics of the external object; and a sensing system is formed by a bionic tactile sensor array so that a sensing capability is improved, and the bionic tactile sensor array is of great significance to exploration of a complex environment.
Owner:DALIAN MARITIME UNIVERSITY
A remote monitoring system for tower cranes
ActiveCN111847258BImprove work efficiencyFast perceptionTotal factory controlLoad-engaging elementsRemote monitoring and controlSystems engineering
The invention provides a remote monitoring system for tower cranes. By collecting all the on-site information in the operation room, and then using the management and display system to automatically display the on-site information reasonably, it assists operators to quickly, effectively and fully Perceive the state of the tower crane and its surrounding environment, and then remotely control the tower crane to complete the hoisting operation through the control command processing system, completely changing the operation mode of the tower crane. The present invention refines the management and display system step by step, and automatically refines the most effective information at that time to display to the operator according to the working conditions of the hook, so that the operator only needs to focus on the main screen, avoiding the difficulty of focusing on the most effective information at that time due to too much information. required information, thereby improving work efficiency.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
Three-dimensional scene real-time updating method in helicopter-borne environment
PendingCN112182774AReal-time update of environmental situationIntuitive perception effectGeometric CADSpecial data processing applicationsComputer graphics (images)Engineering
The invention belongs to the field of three-dimensional reconstruction and situation awareness, and discloses a three-dimensional scene real-time updating method in a helicopter-borne environment. Themethod based on synthetic vision technology comprises the steps of airborne inertial navigation equipment and photoelectric aiming line pose data analysis, terrain space transformation matrix construction, multi-view transformation matrix construction and scene node transformation matrix application. Under the driving of the method, the synthesized visual scene can generate an airplane external scene which is continuously updated in real time or an airplane motion scene which is externally observed.
Owner:西安应用光学研究所
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