Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

63results about How to "Predictive" patented technology

Traffic jam avoiding prompting system based on collective intelligence network

The invention provides a traffic jam avoiding prompting system based on a collective intelligence network. The traffic jam avoiding prompting system consists of a webpage traffic hot spot digging module, a microblog traffic hot spot digging module, a road condition rule predicting module, a jam hot spot verification and management module, a real-time traffic hot spot server, a traveling route planning module based on hot spot avoiding, a traffic hot spot and avoiding route display module and intelligent mobile phone end application software. The traffic jam avoiding prompting system faces the collective intelligence sensing network, is combined with the traditional traffic information sources, carries out digging and prediction on the urban traffic hot spots on the basis of the data activation technology, and further provides the traffic jam hot spot display and avoiding prompt service for intelligent terminal users. The traffic jam avoiding prompting system has the advantages that the data is from the multi-source collective intelligence network, the accuracy is good, the checking comprehensive rate is high, the hot spots are captured and fed back in real time, high efficiency and practicability are realized, the design is good, the operation is stable, the installation is convenient, the traffic jam avoiding prompting system can become a tool capable of providing wide and practical intelligent traffic information for urban residents, and the efficient information prompt is provided for the users to realize the smooth traveling.
Owner:BEIHANG UNIV

Method for automatically controlling partial functions of air conditioner and heat pump water heater based on weather forecast data

The present invention provides a method for automatically controlling partial functions of an air conditioner and a heat pump water heater based on weather forecast data. According to the method, mainly the control on an air conditioner and the big data of weather forecast are combined, such that the air conditioner can predict and automatically control the opening and the closing of the electricheating tape of a compressor during the standby of the air conditioner according to the temperature change in weather forecast, the amount of new air introduced by an indoor unit can be automaticallycontrolled according to outdoor air quality report data while whether an indoor heat exchanger is clogged by dirt can be judged by combining historical air quality data and the gas discharging temperature or the pressure data of the compressor, the dehumidification period or logic can be automatically established according to local seasonal climate, or the evaporation pressure during cooling can be adjusted sp as to make the air conditioner dehumidify according to the concrete humidity condition, the temperature change at the current day can be predicted, the water boiling temperature can be adjusted, the running period achieving the highest energy efficiency can be determined, and the time for boiling water can be calculated and is transmitted to a client terminal.
Owner:魏亮

Multi-phase gait switching control system and control method for power-assisted exoskeleton robot

The invention discloses a multi-phase gait switching control system and control method for a power-assisted exoskeleton robot. The multi-phase gait switching control system is characterized in that the multi-phase gait switching control system includes a sensor module, a signal acquisition and processing module, a gait switching motion control module and a motor driving module; and sensors comprise inertial measurement units, plantar pressure sensors and motor encoders. With the multi-phase gait switching control system and control method for the power-assisted exoskeleton robot of the invention adopted, the output of lower hip joint and knee-joint motor power-assisted torque under various of phase gaits and smooth switching between the phase gaits can be planned under a condition that the exoskeleton robot bears a heavy object, and the coordination and flexibility of the movement of the limbs of the weight-bearing exoskeleton equipment can be realized.
Owner:江苏中科伟思智能机器人科技有限公司

Intelligent Operation and Maintenance Analysis System Based on Multi-source Heterogeneous Data Fusion, Machine Learning and Customer Service Robot

The invention discloses an intelligent Operation and Maintenance Analysis System Based on Multi-source Heterogeneous Data Fusion, Machine Learning and Customer Service RobotBased on multi-source heterogeneous data fusion, In the intelligent operation and maintenance analysis system of machine learning and customer service robot, the analysis and processing module uses the multi-source heterogeneous data fusion technology to preprocess and normalize the real-time data. After the correlation analysis, the model matching is used to output the results, and the root cause of the problem is determined by root cause analysis. The model management module is used for acquiring data for machine learning and outputting various reasoning models to the analysis processing module and the recommendationdecision module. The recommendation decision module recognizes the context and matches the corresponding subsequent processing behavior according to the policy. The invention is based on the multi-source heterogeneous data fusion technology and the operation and maintenance mode of machine learning, which gives consideration to the compatibility problem of the big data, improves the automation degree of the operation and maintenance, guarantees the network safety and the service quality, simultaneously has certain prediction ability, and reduces the related operation and maintenance cost. Theoutput mode of the customer service robot further realizes the intelligence of operation and maintenance.
Owner:金税信息技术服务股份有限公司

Self-adaptive control method for diagonal gait of four-footed robot

The invention discloses a self-adaptive control method for diagonal gait of a four-footed robot, which is used for self-adaptively controlling the walking of the four-footed robot in the nonstructural terrain with the diagonal gait. The self-adaptive control method bases on a fuzzy reasoning learning method and a foot trajectory real-time correction method and takes the diagonal gait as the motion mode so as to comprehensively control a robot body to adapt for the nonstructural environment. The gait planning is carried out on the environmental information collected by the sensor through the fuzzy reasoning learning method; the stability judgment is carried out on the gait planning information; if the planned four-footed robot has stable diagonal gait, the joint corner information is sent to a control system; if not, the supporting time of the diagonal feet is corrected by the foot trajectory real-time correction method so that the four-footed robot has better stability when walking under the changed gait in the nonstructural terrain. The self-adaptive control method is used for correcting foot trajectory planning and walking stability under changed gait when the four-footed robot walks diagonally in a dynamic way, thus realizing the self-perception, self-correction and self-adjustment of the four-footed robot.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method for planning real-time motion of mobile robot based on human behavior simulation

The invention proposes a method for planning the real-time motion of a mobile robot based on human behavior simulation, and the main contents of the method comprise a multilayer personification behavior path planning frame: simulating the functions of a human brain, human eyes and human legs based on the behavior mode of human planning, correspondingly setting a global layer path planning, sensinglayer path planning, and execution layer path planning; a completeness adjustability path planning algorithm which guarantees the completeness and is high in efficiency, wherein a track planned through the algorithm can meet the kinetics kinetic constraint and environment constraint conditions of the robot; and a dynamic monitoring and recovery behavior strategy: carrying out the real-time dynamic monitoring of a safety distance range in front of the robot, and taking a recovery behavior strategy during emergency, thereby effectively guaranteeing the safety and improving the robustness. The method can achieve the real-time motion planning of the mobile robot in large-scale, dynamic and unstructured indoor environments with an unknown part.
Owner:NANKAI UNIV

Tunnel safety construction control system

InactiveCN108952815APredictiveEfficient Security ControlGeometric CADMining devicesVideo monitoringTime information
The invention provides a tunnel safety construction control system, belongs to the field of tunnel construction, and aims to make dangerous situations pre-judged so that rescue and escape processes have linkage and coordination after the dangerous situations occur. The system comprises a positioning monitoring module collecting personnel information, a video monitoring module, a measuring module,an intelligent BIM control platform and an escape guiding module; the intelligent BIM control platform judges that surrounding rock is in a stable state according to dynamic deformation data of tunnelsurrounding rock and supporting structure, and judges that a work area is in a dangerous state according to video information; the danger category is identified according to the above, and a corresponding escape plan is made. The tunnel safety construction control system has the advantages that real-time information of tunnel structures, operating personnel and operation situation in the work area of a tunnel is integrated through the intelligent BIM control platform, the construction safety situation and operation personnel distribution in the tunnel can be known, so that the dangerous situations are prejudged, and the rescue and escape processes have the linkage and coordination after the dangerous situations occur.
Owner:CHINA 19TH METALLURGICAL CORP

Cloud rendering platform task scheduling system and method based on probability model

The invention relates to a cloud rendering platform task scheduling system and method based on a probability model, for carrying out real-time tracking, monitoring and correction on a cloud rendering cluster. The system comprises a cloud rendering user management device, a cloud rendering task management device and a cloud rendering system management device, wherein the cloud rendering system management device is separately connected with the cloud rendering user management device and the cloud rendering task management device, and the cloud rendering user management device is connected with the cloud rendering task management device. Compared with the prior art, the system provided by the invention has the advantages of high task efficiency, cost saving, high instantaneity, predictability, etc.
Owner:SHANGHAI SHANGDA HAIRUN INFORMATION SYST +1

PEMFC electric pile temperature control method and system

The invention discloses a PEMFC electric pile temperature control method and system. The PEMFC electric pile temperature control method comprises the steps of: acquiring a volt-ampere characteristic curve of a PEMFC electric pile model, and enabling the target optimal temperature under different current values to serve as an initial temperature value; regulating and controlling PID control parameters of the PEMFC stack model according to the gain change rate of the PEMFC stack inlet and outlet temperature relative to the PEMFC stack state change at the adjacent moment and the target current value; and controlling the inlet and outlet temperature of the PEMFC stack according to the PID control parameter and the initial temperature value. A model prediction control method and a PID parameter adjustment method are adopted to accurately control the output value of the inlet and outlet temperature of the PEMFC stack, temperature oscillation is reduced, the hysteresis quality of temperature control is solved, short-time high temperature in the PEMFC stack is avoided, and the real-time performance of temperature control is improved.
Owner:ZHONGTONG BUS HLDG

Vehicle control method and device, electronic equipment and storage medium

The invention discloses a vehicle control method and device, electronic equipment and a storage medium, and belongs to the technical field of artificial intelligence. The method comprises the steps ofdetecting an automatic control instruction for a target vehicle, and obtaining a target path according to the automatic control instruction; and automatically controlling the target vehicle accordingto the target path; and if the target path comprises the first road section which is not suitable for automatic control, stopping automatic control on the target vehicle when detecting that the target vehicle reaches the first road section, and controlling the target vehicle according to the detected driving operation. After entering the automatic control mode, if it is detected that the target vehicle arrives at the first road section which is not suitable for automatic control, automatic control over the target vehicle is actively stopped, a user confirms whether to switch to the manual control mode or continue the automatic control mode, the vehicle control mode is flexible, and certain predictability is achieved. Therefore, the driving safety of the user is ensured, and the driving experience of the user is improved.
Owner:SUZHOU ZHIJIA SCI & TECH CO LTD +1

Process gas temperature control method for loose resurgence roller

InactiveCN108549429AImprove closed-loop control accuracyStabilize loose moisture regain processTemperatue controlTemperature controlProcess engineering
A process gas temperature control method for a loose resurgence roller comprises the following steps of firstly setting a process gas temperature value SP, a water adding amount standard value d and awater adding amount acquisition period T of a roller, then detecting the process gas real-time temperature PV and instantaneous water adding amount dn of the roller; performing real-time comparison on PV and SP, and performing real-time output of steam positioning valve aperture y1 through operation of a temperature PID controller; according to a preset water adding amount acquisition period T, calculating a difference between the instantaneous water adding amount dn and a water adding amount dn-1 of a previous period, and performing real-time output of a steam positioning valve aperture ywater for compensating through operation of a water adding amount compensation module; and finally calculating a steam valve aperture setting value y and outputting to the steam valve positioning devicefor controlling the injection amount of steam. According to the method, pre-estimation can be performed on water adding amount change of a tobacco block, and aperture of the steam fixing valve can beadjusted in advance, thereby quickly estimating influence of water adding amount to the process gas temperature, and reducing fluctuation amplitude of the process gas temperature.
Owner:CHINA TOBACCO JIANGSU INDAL

Disease prediction method based on heterogeneous medical knowledge graph and related equipment

The embodiment of the invention relates to the technical field of medical treatment, and discloses a disease prediction method based on a heterogeneous medical knowledge graph and related equipment; and a processor of the equipment is used for executing the steps: obtaining a heterogeneous graph of a heterogeneous medical knowledge graph of historical diagnosis and treatment data of a user, inputting the heterogeneous graph into a graph attention neural network model to obtain a first node representation of each node in the heterogeneous graph; inputting a first user representation determinedaccording to the first node representation and the historical diagnosis and treatment data into a first multi-layer perceptron model to obtain a code representation, and performing pre-training according to the code representation to obtain a first disease prediction model; inputting the historical diagnosis and treatment data into the first disease prediction model to obtain a second user representation, and performing training according to outcome data obtained by inputting the second user representation into a second multilayer perceptron model to obtain a second disease prediction model; and inputting the target medical data into the second disease prediction model to obtain predicted outcome data. The invention relates to a blockchain technology. The data can be stored in a blockchain.
Owner:PING AN TECH (SHENZHEN) CO LTD

Method for determining carbon sinking capacity of mangrove forest

The invention discloses a method for determining carbon sinking capacity of a mangrove forest. The method comprises the following steps: collecting surface soil of the lower covert of the mangrove forest and bare land nearest to the mangrove forest in an area to be measured and mangrove plant leaves; determining a ratio of organic carbon in the soil and stable carbon isotopes (delta <13>C) of the plant leaves; taking the bare land as the background value, and calculating a ratio of mangrove-sourced carbon in the soil organic carbon in the area to be detected and in the artificial mangrove area with known ages of the mangrove according to a relevant formula; obtaining a multiplier index of the organic carbon of the mangrove plants according to the age of mangrove forest, establishing an index multiplier equation, obtaining a mangrove forest organic carbon multiplier rate model by virtue of derivation, and calculating the carbon sinking capacity of the target mangrove forest at a specific age of the forest according to the content of the organic carbon in the surface soil under the lower convert of the target mangrove species. The method is simple, easy and free from damaging the forest; and the obtained result has a prediction function, and the carbon sinking capacity of different species with different ages in different environments can be accurately determined, so that comparative data can be provided to the research of the global variation.
Owner:INST OF GEOCHEM CHINESE ACADEMY OF SCI

Wind tunnel test scheduling method and system based on deep reinforcement learning

ActiveCN111738627AMaximize opening/closing timesMinimize opening/closing timesResourcesSimulationPower equipment
The invention is applicable to the technical field of wind tunnel tests, and provides a wind tunnel test scheduling method and system based on deep reinforcement learning. In the wind tunnel test scheduling method and system, the utilization rate of the branch pipeline and the valve opening delay time of the branch pipeline are considered, wherein one variable of the target function is the utilization rate of the branch pipeline, therefore, the distribution of the wind tunnel test scheduling pipelines can be globally considered; in the distribution, the selection of the next execution action is obtained by maximizing the target function, so that the scheduling method has predictability, the utilization rate of power resources can be maximized, the opening / closing times of branch pipelinescan be minimized, and the loss of power equipment is reduced; and the other variable of the target function is the valve opening delay time of the branch pipeline, so that the prediction accuracy canbe improved, and the smooth experiment can be ensured.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT

Porcelain insulator defect detection device, system and method based on self-comparing trend analysis and vibrational acoustics

The invention provides a porcelain insulator defect detection device, system and method based on self-comparing trend analysis and vibrational acoustics and belongs to the field of part detection. An existing porcelain insulator detection method has limitation, and all porcelain insulators with defects cannot be detected. According to the porcelain insulator defect detection method based on self-comparing trend analysis and vibrational acoustics, a porcelain insulator sound wave detection device based on the vibrational acoustics theory is installed, and stable installation of the porcelain insulator sound wave detection device and the stability of input conditions are guaranteed. A data transmission device in a wired or wireless transmission mode is selected and used, and the data transmission device is connected with the porcelain insulator sound wave detection device and a background analysis system for transmission of digital audio signals. The background analysis system is installed on a computer or server of a master control room. The background analysis system analyzes the digital audio signals transmitted by the data transmission device. The porcelain insulator defect detection device, system and method have the advantage of high accuracy of porcelain insulator defect detection.
Owner:STATE GRID CORP OF CHINA +2

Wellhead water content prediction method for low-gas-yield oil well based on time-frequency characteristics

The invention relates to a production fluid water content measurement method for a high-water-cut oil well based on time-frequency characteristics. The method adopts a double-ring high-frequency capacitive sensor, a water content fluctuation signal time-frequency transformation module, and a wellhead water content prediction network based on artificial intelligent. The method comprises the following steps: wellhead water content fluctuation information is firstly acquired through the double-ring high-frequency capacitive sensor provided with a specific structure and applicable for an oil wellhead; time-frequency transformation is then carried out on acquired water content fluctuation signals, so that a time-frequency spectrum of the water content fluctuation signals is obtained; and the time-frequency simultaneous distribution spectrum obtained through the transformation is used as an input of a convolutional neural network, flow characteristics of the detected signals are extracted layer by layer through multilayer convolution-pooling operation, the extracted characteristics are finally output to softmax for water content measurement, and a water content tag is obtained through wellhead testing.
Owner:东营智图数据科技有限公司

Life-saving method and device for building

InactiveCN1579578ADon't Worry About Fixing IssuesPredictiveBuilding rescueEngineeringLife preserver device
The invention relates to a rescue method and equipment in fire hazard that a person falls along a building by ropes, the lifesaving equipment is fixed on the outside wall of building which presets a rope wheel and level included with coiled lifesaving ropes; when encountering danger, the escape person knows position of the lifesaving equipment in advance, then runs towards the equipment and drags the insurance hook in the free end of lifesaving rope, and hangs up the safety band on his body or the temporary lifesaving band tied by the enough firm fabrics to the insurance hook, so falls along the outside wall. The invention is provided with high foreknowledge, few and stable steps, not only saving escape time but also not necessary to worry about the problem about firming the lifesaving equipment; the method applies the pressure produced by the friction block controlled by level tipping the periphery of the rope wheel, not needing man-control. There is more powerful pressure of friction block for heavier person thus everyone can safely land along with the slow releasing rope, so the method is very safe and fit for elder, women and children.
Owner:叶庆华

Double-lane vehicle lane changing guiding method under vehicle-road cooperation

The invention discloses a double-lane vehicle lane changing guiding method under vehicle-road cooperation, and the method comprises the steps: describing the state information of a vehicle based on acellular automaton model, carrying out the real-time effective evaluation of the threat to the vehicle in real time according to the information of surrounding vehicles, carrying out the traversal ofthe elements of a threat evaluation function, obtaining the position of a minimum value, and giving the vehicle lane changing guidance; in a double-lane environment, subjecting the observation vehicleto vehicle speed induction according to the movement trend of the forward vehicle after lane changing, so that the vehicle speed of the observation vehicle is associated with the acceleration trend of the forward vehicle after lane changing; referring to the motion trend of the backward vehicle, observing that the vehicle adopts a leading acceleration motion rule, and avoiding rear-end collisionaccidents while ensuring motion synchronization; providing early-stage speed guidance for the vehicle close to the blocking point, and avoiding the phenomenon of vehicle starting and stopping; and finally, giving a double-lane vehicle lane changing rule under vehicle-road cooperation to complete lane changing. According to the invention, the problems of vehicle congestion and road section congestion point increase in the future traffic environment are solved.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Method for detecting environmental pollution caused by fertilization

InactiveCN109115698ASolve the problem of heavy metal pollutionSolve pollutionColor/spectral properties measurementsNitrogenOrganic fertilizer
The invention discloses a method for detecting environmental pollution caused by fertilization, and establishes a critical threshold model for environmental pollution of organic fertilizers, by pre-detecting the content of various nutrients and heavy metal components in an organic fertilizer, and the loss of various nutrients and the heavy metal components in the crop planting environment, and combining with the demand for nutrients and the heavy metal components in crops, the amount of the organic fertilizer needed to meet the growth of crops is calculated, and the method can predict whetherthe application amount of the organic fertilizer brings heavy metal pollution to the planted soil or not. The method of the present invention is predictive, and the accuracy for assessing the heavy metal pollution caused by fertilization is as high as 100%, and the method can be used to pre-predict and adjust a fertilization scheme before fertilization, and avoids the problem of heavy metal pollution caused by fertilization and the problems of nitrogen saturation and P pollution.
Owner:上海多利农业发展有限公司 +1

Method and device for detecting pe file abnormal behavior, medium and equipment

InactiveCN108920958AAddressing kaleidoscopic behaviorAddress kaleidoscopic situationsComputing modelsPlatform integrity maintainanceSupport vector machineFeature data
The invention provides a method and a device for detecting pe file abnormal behavior, a medium and equipment. The method comprises the following steps: receiving a file to be detected; extracting thefeature data of the file to be detected; processing the feature data to obtain valid data; predicting whether the file to be detected is an abnormal file or not on the basis of a prediction model trained by a support vector machine ONECLASS model according to the valid data to obtain a prediction result; outputting the prediction result to a user. By adopting the prediction model trained by the support vector machine ONECLASS model, 0-day attacks can be recognized accurately. The method has the advantages of automation, timeliness, effectiveness and the like which are incomparable with the traditional method.
Owner:SHENZHEN LEAGSOFT TECH

Intelligent metering device and method for water content of oil well produced fluid

The invention relates to a metering method of an intelligent metering device for the water content of oil well produced fluid. The metering method is technically characterized in that a liquid-phase multi-element water content fluctuation signal of oil-water mixed liquid obtained after gas-liquid separation is obtained through a multi-electrode high-frequency capacitive sensor, and a deep LSTM-CNN multi-channel fusion network is adopted for extracting water content features in the multi-element water content fluctuation signal collected by the sensor layer by layer and carrying out feature fusion. The water content of the oil well produced fluid is predicted by taking a water content test value as a label and taking the features obtained after network fusion as network input. The adopted deep neural network has objectivity in predicting the water content, uncertainty and subjectivity of manual operation in a test are eliminated, and after the deep convolutional neural network and the long and short-term memory network are trained through a large amount of data and the number of iterations, the data can be predicted strongly and objectively.
Owner:TIANJIN UNIV OF SCI & TECH +1

Insulator contamination monitoring system

The invention discloses an insulator contamination monitoring system. An ultraviolet detection module, a temperature detection module and a humidity detection module are arranged to detect a contamination ultraviolet discharge signal of an insulator and the temperature and humidity of the environment where the insulator is placed respectively and input the ultraviolet discharge signal and temperature and humidity signals to a BP neural network prediction module. The BP neural network prediction module gives a predicted value of equivalent salt deposit density. The predicted value of equivalent salt deposit density is sent out through a wireless sending module under the control of a controller module. In a monitor room, a wireless receiving module receives the equivalent salt deposit density data. The staff checks and monitors the equivalent salt deposit density data at a PC monitoring side. Insulator flashover is prevented by predicting the equivalent salt deposit density. The insulator contamination monitoring system is predictive and practical.
Owner:GUILIN NORMAL COLLEGE

Road adhesion coefficient estimation method and system based on laser radar

The invention relates to a road adhesion coefficient estimation method and system based on a laser radar. The method comprises the following steps: S1, acquiring point cloud information acquired by a vehicle-mounted laser radar in vehicle driving under different illumination conditions and different road types; s2, road surface area point cloud in the point cloud information is extracted; s3, establishing a road surface reflection intensity distribution model parameter database based on the reflection intensity probability distribution model parameters of the road surface area point cloud; and S4, obtaining actually measured road surface point cloud data, and performing road surface type identification and adhesion coefficient estimation by using the distribution similarity. Compared with the prior art, the method has the advantages of high estimation precision, strong robustness and the like.
Owner:TONGJI UNIV

Life-saving method and device for building

InactiveCN1327914CDon't Worry About Fixing IssuesPredictiveBuilding rescueEngineeringLife preserver device
The invention relates to a rescue method and equipment in fire hazard that a person falls along a building by ropes, the lifesaving equipment is fixed on the outside wall of building which presets a rope wheel and level included with coiled lifesaving ropes; when encountering danger, the escape person knows position of the lifesaving equipment in advance, then runs towards the equipment and drags the insurance hook in the free end of lifesaving rope, and hangs up the safety band on his body or the temporary lifesaving band tied by the enough firm fabrics to the insurance hook, so falls along the outside wall. The invention is provided with high foreknowledge, few and stable steps, not only saving escape time but also not necessary to worry about the problem about firming the lifesaving equipment; the method applies the pressure produced by the friction block controlled by level tipping the periphery of the rope wheel, not needing man-control. There is more powerful pressure of friction block for heavier person thus everyone can safely land along with the slow releasing rope, so the method is very safe and fit for elder, women and children.
Owner:叶庆华

Method for solving time-varying continuous algebraic Riccati equation based on zero neural network

The invention discloses a method for solving a time-varying continuous algebraic Riccati equation based on an error adaptive coefficient zero neural network, which comprises the following steps: firstly, abstracting and modeling original problems, such as mechanical arm motion planning, image and signal processing and the like, and converting the problems into a mathematical model for solving the time-varying continuous algebraic Riccati equation; converting the mathematical model into a time-varying matrix linear equation problem through derivation and Kronecker product, using an error-based adaptive coefficient zero neural network for iterative solution, performing mapping and adaptive transformation continuously on system residual errors and state variables in the solution process, and adjusting the solution strategy of the network; finally, stopping iteration and outputting the model system when the model system obtained by iteration solution meets predefined conditions and precision. Compared with other traditional methods for solving the time-varying continuous algebraic Riccati equation, the algorithm provided by the invention has higher convergence precision and robustness.
Owner:GUANGDONG OCEAN UNIVERSITY

A non-contact compensation and Kalman filter correction method for the detection of geometric parameters of high-speed railway catenary network

The invention discloses a high-speed rail catenary geometric parameter detection non-contact compensation and Kalman filtering correction method. The method mainly comprises the steps that firstly, a video camera is triggered to collect video images at equal intervals through an encoder on a wheel set; the regions where target light spots appear in the images are predicted according to prediction strategies; the positions of the target light spots in the images are located according to the centroid method and the image morphology method; the angle of roll vibration is detected through an angle sensor, and compensation is performed on the vibration through coordinate transformation; contact wire height and pull-off values are figured out according to mapping transformation of the light spots from the position of an image coordinate system to the position of a world coordinate system; finally, detecting values are corrected through the Kalman filter equations. According to the method, the defects that the system is low in detecting accuracy, poor in real-time processing performance and the like are effectively overcome, the processing efficiency of the system is improved, and the requirements of high-speed rail catenary on-line detection for real-time performance and accuracy are well satisfied.
Owner:SOUTHWEST JIAOTONG UNIV

Traffic jam avoiding prompting system based on collective intelligence network

The invention provides a traffic jam avoiding prompting system based on a collective intelligence network. The traffic jam avoiding prompting system consists of a webpage traffic hot spot digging module, a microblog traffic hot spot digging module, a road condition rule predicting module, a jam hot spot verification and management module, a real-time traffic hot spot server, a traveling route planning module based on hot spot avoiding, a traffic hot spot and avoiding route display module and intelligent mobile phone end application software. The traffic jam avoiding prompting system faces the collective intelligence sensing network, is combined with the traditional traffic information sources, carries out digging and prediction on the urban traffic hot spots on the basis of the data activation technology, and further provides the traffic jam hot spot display and avoiding prompt service for intelligent terminal users. The traffic jam avoiding prompting system has the advantages that the data is from the multi-source collective intelligence network, the accuracy is good, the checking comprehensive rate is high, the hot spots are captured and fed back in real time, high efficiency and practicability are realized, the design is good, the operation is stable, the installation is convenient, the traffic jam avoiding prompting system can become a tool capable of providing wide and practical intelligent traffic information for urban residents, and the efficient information prompt is provided for the users to realize the smooth traveling.
Owner:BEIHANG UNIV

A method for measuring the carbon sink capacity of mangroves

The invention discloses a method for determining carbon sinking capacity of a mangrove forest. The method comprises the following steps: collecting surface soil of the lower covert of the mangrove forest and bare land nearest to the mangrove forest in an area to be measured and mangrove plant leaves; determining a ratio of organic carbon in the soil and stable carbon isotopes (delta <13>C) of the plant leaves; taking the bare land as the background value, and calculating a ratio of mangrove-sourced carbon in the soil organic carbon in the area to be detected and in the artificial mangrove area with known ages of the mangrove according to a relevant formula; obtaining a multiplier index of the organic carbon of the mangrove plants according to the age of mangrove forest, establishing an index multiplier equation, obtaining a mangrove forest organic carbon multiplier rate model by virtue of derivation, and calculating the carbon sinking capacity of the target mangrove forest at a specific age of the forest according to the content of the organic carbon in the surface soil under the lower convert of the target mangrove species. The method is simple, easy and free from damaging the forest; and the obtained result has a prediction function, and the carbon sinking capacity of different species with different ages in different environments can be accurately determined, so that comparative data can be provided to the research of the global variation.
Owner:INST OF GEOCHEM CHINESE ACADEMY OF SCI

Private-vehicle-oriented back-row baby/pet prone-window discrimination and in-vehicle atmosphere identification method

The invention discloses a private-vehicle-oriented back-row baby / pet prone-window discrimination and in-vehicle atmosphere identification method. The method comprises the steps of 1) arranging a camera and a microphone in a car; 2) performing voice recognition on the collected audio to obtain an in-vehicle atmosphere recognition result; 3) performing target detection on the acquired video image, and obtaining the distance between a target detection object and the vehicle window; and 4) when the distance between the target detection object and the vehicle window is smaller than a set value, judging that the baby / pet has a tendency of lying down the window, and carrying out early warning. According to the invention, through limitation of a camera hardware erection mode, hardware and an identification mode are tightly combined, so that the method is more systematic; whether the baby / pet lies over the window or not can be judged simply through target detection; the method is simple and effective; and timeliness is high.
Owner:WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products