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73results about How to "Data support is good" patented technology

Slope displacement and inclination angle monitoring device and method

ActiveCN105937879AGood data supportAccurate monitoring of horizontal displacement changesUsing optical meansHydrostatic levellingIntegrated monitoringLaser rangefinder
The invention discloses a slope displacement and inclination angle monitoring device. The slope displacement and inclination angle monitoring device includes hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments, benchmark liquid level tanks, a data sampler, a laser rangefinder and a data acquisition controller. The invention also discloses a slope displacement and inclination angle monitoring method. According to the method, a plurality of contour lines are selected on a measured slope, and a plurality of hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments are distributed on the contour lines; the laser rangefinder is installed on the opposite side of the measured slope; the hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments are adopted to monitor the vertical displacement amount and inclination angle change amount of the measured slope; the laser rangefinder is adopted to measure the horizontal displacement amount of the measured slope; the overall displacement and inclination angle data of the measured slope are obtained; and various kinds of slope analysis models are used auxiliarily, and therefore, an effective means can be provided for landslide disaster prevention.
Owner:浙江同禾传感技术有限公司

Millimeter wave radar target trace point condensation method for unmanned ship

The invention discloses a millimeter wave radar target trace point condensation method for an unmanned ship and belongs to the field of radar data processing. According to the invention, the millimeter wave radar target trace point condensation is realized by combining a threshold filtering method with a clustering method based on Euclidean distance. Firstly, target plot data in front of the unmanned ship are obtained from a millimeter-wave radar, a threshold filtering method is adopted for carrying out plot data preprocessing, and invalid target plots are filtered out; effective target plotsare rearranged according to relative distance values from near to far; the Euclidean distances among the plots is calculated according to the rule that the plots belonging to the same target are closein position and the same in speed, the similarity among the plots is measured by using the Euclidean distances, the target plots are clustered, the main information of an obstacle target is calculated, the size range of the obstacle target is represented, and the target plot aggregation is completed. According to the method, the data volume is reduced, the data processing efficiency and the accuracy of a radar detection result are improved, and good data support is provided for the autonomous collision avoidance of the unmanned ship.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Prediction method and system for industrial time series data

The invention relates to a prediction method and system for industrial time series data. The method comprises the following steps: acquiring historical record data monitored in a production process; establishing a prediction correction model composed of a prediction network and a filtering algorithm, and training the prediction network by using the obtained historical record data; predicting approximate Gaussian distribution of a target variable at the current moment through the trained prediction network; according to a monitoring value and monitoring error distribution of a target variable at the current moment in the production process; and calculating posteriori distribution of the target variable at the moment through an extended Kalman filtering algorithm in combination with distribution of the target variable, taking a correction result as correction data, putting the correction result back to the prediction network for prediction at the next moment, and iteratively predicting and correcting the target variable. The method does not depend on an accurate mathematical model, filtering correction can be carried out for the problem that errors exist in sensor monitoring values,and better data support is provided for prediction at the later moment.
Owner:北京中超伟业信息安全技术股份有限公司

Protocol converter instrument remote configuration method

The invention discloses a protocol converter instrument remote configuration method, which comprises the following steps that a configuration tool for an appointed CAN instrument protocol is provided,and a configuration file is output; an operation and maintenance engineer inputs data items in a CAN instrument protocol needing to be docked and outputs a configuration file in a specified format through a page or a configuration program, and the file comprises configuration attribute data of each data item needing to be issued; the configuration file can trigger the vehicle-mounted machine to the ftp server through a command to formulate path downloading and import the path downloading into the vehicle-mounted machine through the USB flash disk, and the ftp server downloads a command to bereported to the scheduling platform to receive a response; the vehicle-mounted machine downloads the configuration file to a protocol converter in a data stream mode for local storage and then deletesthe configuration file; and the vehicle-mounted machine sends the uploading sub-message sending interval of each period to the protocol converter local machine for storage through a protocol. The invention provides an instrument protocol docking scheme which can achieve the purposes of flexibility, unification and scientific management, remote configuration management can be achieved, configuration work is executed by an operation and maintenance department, repeated work of a research and development department is reduced, maintenance work becomes simple, and the purpose of improving the efficiency of research and development of human resources is achieved.
Owner:ZHENGZHOU TIAMAES TECH

Parallel torsion type automatic vehicle parking deviation rectifying device and deviation rectifying method thereof

The invention discloses a parallel torsion type automatic vehicle parking deviation rectifying device and a deviation rectifying method thereof, and belongs to the field of parking equipment. The deviation rectifying device comprises a position detecting mechanism and a deviation rectifying executing mechanism, wherein the deviation rectifying executing mechanism achieves the purposes that a vehicle rotates on the deviation rectifying mechanism to adjust the parking angle and translates to adjust the relative position of the vehicle through independent parallel cooperative movement of two transverse moving mechanisms and two longitudinal moving mechanisms, the structural design is simple and compact, and the deviation rectifying action is stable and reliable; the position detecting mechanism detects the parking position of the vehicle by using a movable distance sensor with three liftable surfaces and a fixed distance sensor with one surface, so that the vehicle position detection is comprehensive and accurate, good data support is provided for automatic deviation rectifying of the vehicle, the accuracy and stability of vehicle deviation rectifying adjustment are improved, the movable distance sensor with the three liftable surfaces adopts linkage control, the linkage structure design is simple and ingenious, the distance sensors are stable and flexible in lifting, and parkingand taking of the vehicle are facilitated.
Owner:CHANGZHOU INST OF TECH

Model test device and test method for high-speed railway subgrade passing through karez

ActiveCN111610094ARich structural featuresRich flow characteristicsRailway tracksMaterial strength using tensile/compressive forcesSoil scienceTest chamber
The invention relates to a model test device for a high-speed railway subgrade passing through a karez. The device is mainly characterized in that a test box body is mounted below a cross beam of a reaction frame, and organic glass plates are arranged at the front part and the rear part of the test box body; the box body is filled with model soil in which tracer particles are buried; and a PVC vertical pipe and a PVC longitudinal pipe are arranged in the model soil; a railway subgrade is arranged on the top surface of the model soil; multiple layers of stiffened strips are arranged in the railway subgrade, a concrete base plate is laid on the upper portion of the railway subgrade, and a jack on the cross beam is arranged over a concrete plate; a vibration exciter and a displacement meter are arranged on the concrete base plate; three strain gauges are arranged on the model geogrids of the stiffened strips; three soil pressure boxes are vertically arranged on the railway subgrade, and three lateral soil pressure boxes and two strain gauges are arranged on the PVC vertical pipe; and a particle image velocimeter is arranged on the outer side of the test box body. According to the invention, the mechanical properties of the subgrade and the karez foundation under the train load can be obtained, so that a test basis is provided for reinforcement design and construction of the subgrade and the foundation of the high-speed railway in the karez region.
Owner:SOUTHWEST JIAOTONG UNIV

Oil and gas big data analysis system and method for service scene

The invention provides an oil and gas big data analysis system and method for a service scene, and relates to the technical field of big data analysis, and the system comprises an analysis module management engine which integrates a plurality of data analysis algorithms to provide reusable components for oil and gas big data analysis; a service process visual editing engine which is used for providing a visual service analysis process design tool; an analysis process conversion engine which is used for converting the service process into an executable process instance according to a conversion algorithm; a process execution optimization engine which is used for optimizing operation parameters according to the analysis process data scale and the platform operation state; a distributed process execution scheduling engine which is used for controlling, monitoring and analyzing the execution of the process; and a big database which is used for collecting and storing oil and gas big data. According to the method, the oil and gas big data service can be automatically converted into the data analysis executable process instance, a self-management, self-configuration and self-optimization analysis mode oriented to field professionals is realized, the complexity of oil and gas big data analysis is reduced, and oil and gas big data analysis is quickly and efficiently realized.
Owner:NORTHEAST GASOLINEEUM UNIV

Nuclear power plant volume control box deoxidization testing system and method

The invention discloses a nuclear power plant volume control box deoxidization testing system and method. The nuclear power plant volume control box deoxidization testing system comprises a top charging and bottom discharging system, a purging system, an oxygen content adjusting system, a temperature control system and a parameter monitoring system. The nuclear power plant volume control box deoxidization testing system provides functions of upper charging and bottom discharging flow control, temperature adjustment, oxygen content control, nitrogen supply, gas discharging and the like, and based on the functions, achieves a testing mode with intermittent purging and pressured air exhausting. The invention also designs corresponding testing methods for different working conditions and helpsacquire rules of influence of volume control box liquid level, waiting time and purging time on intermittent purging deoxidization effects as well as the rules of influence of standing time on pressurized air exhausting deoxidization effects; by comparing the testing data of two methods, difference of intermittent purging and pressured air exhausting in deoxidization effects can be acquired to provided optimized data support for optimization and adjustment of deoxidization strategies of actual generator units.
Owner:SUZHOU NUCLEAR POWER RES INST +3

Short-time passenger flow forecasting method suitable for urban rail transit system

InactiveCN104239958AStrong real-timeImprove accuracy and validityForecastingPrediction methodsBusiness forecasting
The invention relates to a short-time passenger flow forecasting method suitable for an urban rail transit system. The short-time passenger flow forecasting method suitable for the urban rail transit system comprises the following steps that a, swiping card ticket data of passengers riding trail transit are obtained from an AFC; b, classification is conducted according to the types of tickets; c, analysis is conducted on different types of passenger flow data; d, according to unique identification numbers, statistics of the daily travelling rule of each one-card is carried out; e, the daily travelling rule of the single one-card in a next forecasting time period on a single day is forecasted; f, a one-card forecasting result is formed; g, for the data of disposable tickets, passenger flow distribution is conducted with a K short path method, K paths are obtained, and the passenger flow distribution probability of each path is obtained; h, the disposable ticket data of the forecasted day are distributed to the different paths according to the probabilities of the K short paths, and the passenger flow data of different paths are forecasted. Compared with the prior art, the short-time passenger flow forecasting method has the advantages of being efficient, accurate, high in real-time performance and the like.
Owner:SHANGHAI UNIV OF ENG SCI

Target identification method based on linear frequency modulation wavelet atomic network

The invention provides a target identification method based on a linear frequency modulation wavelet atomic network. The target identification method comprises the steps of S1, offline training the linear frequency modulation wavelet atomic network; and S2, classifying the targets by using the linear frequency modulation wavelet atomic network obtained in the step S1, and outputting a recognitionresult. Based on a three-layer feedforward neural network structure, linear frequency modulation wavelet atoms are used as a characteristic extraction primary function of an input layer, the input layer realizes characteristic extraction through linear frequency modulation wavelet atom transformation, and a neural network classifier is formed by a hidden layer and an output layer. Compared with the prior art, the utility model has the following advantages: 1, richer feature information of a target can be obtained through linear frequency modulation wavelet atom transformation, better effectivedata support is provided for a classifier, and the accuracy of target identification is improved; 2, through combination of feature extraction and classification, parameter adjustment can be carriedout in real time according to different target features and recognition environments, and the recognition performance and the anti-noise performance of the recognition system are improved;
Owner:SHANDONG UNIV

Apparatus and method for measuring mass of hydrogen in vehicle-mounted hydrogen cylinder

The invention relates to the field of measurement of hydrogen in a hydrogen cylinder, and provides an apparatus and method for measuring the mass of hydrogen in a vehicle-mounted hydrogen cylinder. The apparatus comprises a hydrogen source device, a pressure reducing device, a pressurizing device and a hydrogenation gun which are sequentially connected through a hydrogen supply pipeline; a mass flow meter is arranged between the pressure reducing device and the pressurizing device; a pressure gauge is arranged between the pressurizing device and the hydrogenation gun; and the hydrogenation gun is used for injecting hydrogen into a hydrogen cylinder to be measured. The apparatus further comprises a temperature sensor and an electric control device; the temperature sensor is arranged on the surface of the hydrogen cylinder to be measured; and the electric control device is connected with the temperature sensor. The apparatus can indirectly measure the pressure and the temperature in the hydrogen cylinder on the outer side of the hydrogen cylinder and further calculate the hydrogen consumption, is accurate and convenient in measurement, high in efficiency and convenient to move, is suitable for measuring various operation conditions of fuel cell vehicles of different vehicle types, and is flexible and convenient.
Owner:CHINA AUTOMOTIVE TECH & RES CENT +1

Sensor vibration experiment data acquisition system

The invention discloses a sensor vibration experiment data acquisition system. The system comprises a vibration test apparatus and a pressure sensor, the pressure sensor is arranged on the vibration test apparatus, the system also comprises a data acquisition module and a transmission module, the vibration test apparatus drives the sensor to vibrate according to a preset vibration mode, a pressuresensing end portion of the pressure sensor is located in a constant pressure environment, the data acquisition module acquires voltage values output by the pressure sensor in the constant pressure environment and in various vibration modes, and the voltage values are transmitted to a data analysis apparatus for analysis processing through the transmission module. The system is advantageous in that some vibration conditions of the sensor in the practical work are simulated through adjustment of the vibration modes so that the stability and the reliability of the sensor are detected, the quality inspection by manufacturers is facilitated, and data support can be provided for the improvement of products; besides, data can be checked in real time by employing a display screen so that resultsare visual and detection alarm results can be emitted in time through a computer.
Owner:WUHU GRAND VISION AUTO ELECTRONICS CO LTD

Four-wheel adjusting type vehicle parking automatic deviation rectifying device and deviation rectifying method thereof

InactiveCN110792310APrecise position detectionDoes not affect withdrawalParkingsControl theoryDistance sensors
The invention discloses a four-wheel adjusting type vehicle parking automatic deviation rectifying device and a deviation rectifying method of the four-wheel adjusting type vehicle parking automatic deviation rectifying device, and belongs to the field of parking equipment. The automatic deviation rectifying device comprises a deviation rectifying actuating mechanism assembly and a position detecting mechanism assembly, wherein the deviation rectifying actuating mechanism assembly utilizes four sets of rolling deviation rectifying modules to cooperate with a lateral adjusting mechanism to achieve deviation rectifying adjustment of the parking position of a vehicle, the structure design is simple and compact, and the deviation rectifying action is more stable and reliable; the position detecting mechanism assembly detects the parking position of the vehicle by using a distance sensor capable of doing ascending and descending movement, the distance deviation of the same side of the vehicle is detected by the distance sensor to determine the torsion angle required to be adjusted, and the deviation distance of the front-rear direction or the left-right direction of the vehicle is determined by the detection value of the distance sensor on the opposite side, so that the vehicle position detection is comprehensive and accurate, the use cost is lower, and the parking of the vehicle isnot influenced. Good data support is provided for automatic deviation rectifying of the vehicle, and accuracy and stability of deviation rectifying adjustment of the vehicle are improved.
Owner:CHANGZHOU INST OF TECH

A slope displacement and method and method and method of tilt angle monitoring

ActiveCN105937879BAccurate monitoring of horizontal displacement changesData support is goodUsing optical meansHydrostatic levellingData acquisitionEngineering
The invention discloses a slope displacement and inclination angle monitoring device. The slope displacement and inclination angle monitoring device includes hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments, benchmark liquid level tanks, a data sampler, a laser rangefinder and a data acquisition controller. The invention also discloses a slope displacement and inclination angle monitoring method. According to the method, a plurality of contour lines are selected on a measured slope, and a plurality of hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments are distributed on the contour lines; the laser rangefinder is installed on the opposite side of the measured slope; the hydraulic type sedimentation detection and inclination angle detection integrated monitoring instruments are adopted to monitor the vertical displacement amount and inclination angle change amount of the measured slope; the laser rangefinder is adopted to measure the horizontal displacement amount of the measured slope; the overall displacement and inclination angle data of the measured slope are obtained; and various kinds of slope analysis models are used auxiliarily, and therefore, an effective means can be provided for landslide disaster prevention.
Owner:浙江同禾传感技术有限公司

Joint feature extraction and classification method based on adaptive chirp wavelet filtering

The invention provides a joint feature extraction and classification method based on adaptive chirp wavelet filtering, and the method comprises the following steps: S1: carrying out off-line trainingan adaptive chirp wavelet filter; and S2: performing feature extraction and classification on a target signal by using the adaptive chirp wavelet filter obtained in S1, and outputting an identification result. The method integrates a neural network structure with an adaptive filter, takes chirp wavelet atoms as a feature extraction basis function of an input layer of the filter to realize featureextraction of signals, and an output layer of the filter realizes target classification through an adaptive filtering algorithm. The invention improves the accuracy and the anti-noise performance of target identification; the filter parameters can be dynamically adjusted, and the filter effect on unknown signals is more efficient; the joint feature extraction and classification method based on adaptive chirp wavelet filtering has better adaptability to the random identification process; and the parameter adjustment can be carried out in real time according to different target characteristics and identification environments, and the identification performance of an identification system is improved.
Owner:SHANDONG UNIV

Eddy current retarder coil resistance test system and test method thereof

The invention relates to an eddy current retarder coil resistance test system and a test method thereof. A resistance tester of the test system measures a resistance value of a coil to be tested, and resistance value data is transmitted to a host computer via a serial port. An infrared temperature measurement probe senses a surface temperature of the coil to be tested, an infrared data processing module converts the temperature into temperature data, and the temperature data is transmitted to the host computer through the serial port. A resistance value temperature is calibrated, a set resistance standard range value is compared and analyzed, a detection result is determined and displayed, and a test result and the data are stored. The test method comprises the following steps of (1) inputting a product number of the coil to be tested so that the host computer automatically pops up the resistance standard range value of the coil to be tested; (2) clicking a ''detect'' button; (3) obtaining the resistance value collected by a resistance tester and a temperature value collected by the infrared temperature measurement probe; (4) carrying out temperature calibration, and acquiring a corresponding resistance value R20 at 20 DEG C; and (5) determining whether the R20 is within the set resistance standard range, if so, displaying ''qualified test''; and if not, displaying ''failed test''.
Owner:SHENZHEN TERCA INFORMATION TECH
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