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176results about How to "For subsequent analysis" patented technology

Video behavior timeline detection method

The invention discloses a video behavior timeline detection method. The method comprises the following steps: performing modeling based on a deep learning and time structure, detecting a video behavior timeline in combination with coarse granularity detection and fine granularity detection, and extracting temporal and spatial characteristics of a video by using a dual-flow model on the basis of anexisting model SSN; modeling a time structure of a behavior, and dividing a single behavior into three stages; then providing a new characteristic pyramid capable of effectively extracting time boundary information of a video behavior; and finally, combining the coarse granularity detection and the fine granularity detection to make a detection result more precise. The video behavior timeline detection method is high in detection precision, and the detection precision is higher than the detection precision of all of the current existing disclosed methods; the video behavior timeline detectionmethod is wide in application range, is applicable to detection of video clips in which people are interested in an intelligent monitoring system or a human-machine supervision system, is favorable for subsequent analysis and processing, and has an important application value.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL

Method for separating high-purity circulating tumor cells from blood

ActiveCN103642756AHigh puritySolve the problem of non-specific adsorption of cells on the surfaceTumor/cancer cellsAntigenWhite blood cell
The invention discloses a method for separating high-purity circulating tumor cells from blood, comprising the following steps of: A. loading single chain polynucleotides on the surface of a micro channel of a micro fluidic chip, and enabling the surface of the micro channel to load an antibody by performing specific binding on polynucleotides and mark single chain polynucleotide in an antibody-mark single chain polynucleotide compound; B. contacting a blood sample with the antibody loaded on the surface of the micro channel of the micro fluidic chip, and separating the circulating tumor cells from blood by the combination of the antibody with surface specific antigens of the circulating tumor cells in the blood; and C. implementing release of the antibody and the captured circulating tumor cells from the surface of the micro channel by cutting a polynucleotide chain, thereby separating to obtain the high purity circulating tumor cells. The method provided by the invention can separate the high purity circulating tumor cells. If the released cells further pass through the loaded chip aiming at hemameba, the circulating tumor cells with sky-high purity can be obtained.
Owner:SHANGHAI JIAO TONG UNIV

Device and method for recognizing damage to bridge stay cable

The invention discloses a device and a method for recognizing damage to a bridge stay cable. The device comprises an iron plate, two magnets and a signal analyzer, wherein a copper coil is fixedly arranged on the bottom surface of the iron plate; the two magnets are arranged on the bottom surface of the iron plate at an interval; the copper coil is located at the center of the connection line between the two magnets; and the signal analyzer is used for real-timely collecting and displaying magnetic flux of the copper coil. The invention provides an optimized structure scheme for detecting damage to the bridge stray cable according to a magnetic flux leakage detection principle. The device provided by the invention is simple in structure, convenient and easy to operate and carry, and can improve the magnetic flux leakage detection sensitivity by replacing the conventional Hall sensor by the coil, thereby facilitating signal amplification and subsequent analysis.
Owner:CHINA RAILWAY BRIDGE SCI RES INST LTD +1

Warehouse box body identification and positioning method based on contour features

The invention provides a storage box recognition and positioning method based on contour features. The method comprises the following steps: (1) collecting a color image and a depth image of box goods; (2) performing foreground segmentation on the color image and the depth image, mapping depth blocks to the color image, marking color region blocks falling into the same depth block, and combining the color region blocks to serve as a final box cargo foreground image; (3) performing linear edge detection on the foreground image of the box cargo, and connecting edges by taking a rectangle as an outline target to obtain a candidate target closed outline; (4) selecting the target meeting the predetermined box body rectangular characteristics from the candidate target closed contours to obtain abox body identification result. The method performs identification and positioning of the box goods based on the depth image and the color image, improves the calculation efficiency, has the advantages of low cost and high real-time performance, and is suitable for identification and positioning of the box goods in complex environments such as factory warehouses.
Owner:HUAZHONG UNIV OF SCI & TECH

Recognition method of multi-path branch structure

InactiveCN101271398AAvoid Branching Judgment StructuresSimplified control flow graphProgram controlMemory systemsSoftware engineeringMultiway branch
The invention pertains to the field of reverse project and program analysis, in particular to a method for recognizing a multi-path branched structure which can decompile executive files and then get intermediate codes of the executive file. Control flow information is extracted from the intermediate codes, thus obtaining a control flow chart; the control flow chart is compiled and expended, thus recognizing a separation judging branched sub-chart; the separation judging branched sub-chart is recognized as a multi-path branched structure. The method simplifies the program control flow chart, results in a more reasonable object code structure after decompiling, strengthens the readability of the object code, facilitates successive analysis, and effectively structurizes the program control flow chart. The method can be used in decompiling and software testing equipment, etc.
Owner:PEKING UNIV

Road condition identifying method for lower limb prosthesis walking

The invention provides a road condition identifying method for lower limb prosthesis walking and relates to lower limb prostheses. The method comprises the steps of using a front sole pressure sensor, a rear heel pressure sensor and an inertial measurement unit module to collect residual end movement signal sample data of a tested person, experimental road conditions including flat ground, upward slope, downward slope, upward stairs and downward stairs; selecting the starting point of road condition identifying time; at the moment starting to use the inertial measurement unit to collect the residual end movement signal sample data of the tested person; determining the number for practical use of the collected residual end movement signal sample data; processing the collected and calculated residual end movement signal sample data; calculating the characteristic valve of the collected residual end movement signal sample data; training with an LVQ-ADABOOST classifier; realizing online identification of the road conditions in lower limb prosthesis walking. The problem that the offline road condition identifying method for lower limb prosthesis walking cannot guarantee the instantaneity of road condition identification is solved.
Owner:HEBEI UNIV OF TECH

Shale adsorbed gas content analysis system

The invention discloses a shale adsorbed gas content analysis system. According to the shale adsorbed gas content analysis system, a sample jar in which an adsorbent is put is arranged in a heating furnace; an adsorbent is arranged in the sample jar; a seal cartridge is arranged at the opening of the sample jar; a temperature measuring thermocouple is arranged in the sample jar; a temperature control thermocouple is arranged in the heating furnace; the temperature measuring thermocouple and the temperature control thermocouple both are connected with a control box; a gas storage chamber is arranged outside the heating furnace and communicated with the interior of the sample jar; a pressure sensor is communicated with the interior of the gas storage chamber and connected with the control box; a vacuum pump is arranged outside the heating furnace, communicated with the interior of the gas storage chamber and connected with the control box; and a tested gas tank and a protective gas tank are arranged outside the heating furnace, and both are communicated with the interior of the gas storage chamber. The shale adsorbed gas content analysis system is capable of accurately determining the content of the shale adsorbed gas and convenient for an analyst to perform subsequent analysis, and therefore, accurate data are provided for subsequent utilization of the shale gas.
Owner:CHENGDU CHUANGYUAN OIL & GAS TECH DEV

Calculation method for constructing gravitational gradient field of complex body

The invention relates to a calculation method for constructing a gravitational gradient field of a complex body. The method is technically characterized by comprising the following steps of enabling the complex body to be equivalent to a charged insulator, enabling a gravitational field to be equivalent to an electric field, and performing mesh division on a model; calculating a gravitational field between two objects, enabling the density to be equivalent to charge density of a charged body, and multiplying the density by a conversion coefficient to obtain a gravitational field around the complex body; and performing derivation on gravitational components along three coordinate axes in a rectangular coordinate system, regarding the gravitational components as deformation of the objects in three coordinate directions, and calculating out strain generated under the deformation, wherein linear strain corresponds to a linear gravitational gradient, and shear strain corresponds to a cross gravitational gradient. The method realizes calculation of the gravitational gradient around any three-dimensional mass body, is suitable for directive calculation of a self gradient of a gravity gradiometer, a basic gradient of a lab and artificial gradient excitation generated by an experiment apparatus, and lays a solid foundation for gravity gradient inversion and geological interpretation.
Owner:中国船舶重工集团公司第七〇七研究所

Total-stroke and total-space transient electromagnetic device and measuring method

The invention relates to a total-stroke and total-space transient electromagnetic device and measuring method. The device comprises a transmitting unit and a multi-channel receiving unit, wherein the transmitting unit and the multi-channel receiving unit are respectively connected with a signal processing unit, the signal processing unit is connected with a main engine through a communication unit, relevant parameters are set through operation software of the main engine, the receiving unit and the transmitting unit jointly achieve field source excitation and complete collection, recording and the like of an induction signal and an excitation source signal, the induction signal and the excitation source signal are transmitted to the main engine through an RS485, and the display, storage, management and the like of the data are achieved. According to the total-stroke and total-space transient electromagnetic device and measuring method, the self-induction and mutual induction influences can be effectively reduced, the signal to noise ratio and the sensitivity are improved, receiving coils can be combined into different types according to the detection requirement, the different detection effects can be obtained, and the judgment on the direction of an abnormal body can be achieved under the total-space situation. The number of detection blind zones can be reduced, the superficial zone detection effect can be improved, an ARM quad-core processer hardware platform is adopted, a special embedded type operation system is configured, and real-time imaging, comparison, judgment and subsequent analysis can be conveniently carried out on the measured data.
Owner:ANHUI HUIZHOU GEOLOGY SECURITY INST

Overall performance testing rack of numerical control ultrasonic cutting sound main shaft

InactiveCN103323223AImprove performanceImprove performance testing resultsMachine part testingNumerical controlCombined test
The invention discloses an overall performance testing rack of a numerical control ultrasonic cutting sound main shaft. The overall performance testing rack comprises a base. Perpendicular linear guide rails, an artificial load device and a radial movement base are installed on the base. The perpendicular linear guide rails are in sliding fit with the ultrasonic cutting sound main shaft. The artificial load device is provided with two force application rods. The two force application rods are located at the axial position and the radial position of a cutting tool nose of the ultrasonic cutting sound main shaft respectively and used for applying artificial loads to the cutting tool nose. The radial movement base is provided with a testing probe which can move towards the ultrasonic cutting sound main shaft in a radial mode and rotate. According to the overall performance testing rack of the numerical control ultrasonic cutting sound main shaft, the testing site and various costs can be reduced, the measurement on different parameters under the same installation condition is provided, the testing errors under different installation conditions are reduced, the testing effect and the testing efficiency on the performance of the ultrasonic cutting sound main shaft are improved, and test bases are provided for the further perfection and the further improvement of the performance of the ultrasonic cutting sound main shaft.
Owner:HANGZHOU DIANZI UNIV

Monitoring system for water injection state of each layer of multi-layer water injection well

The invention provides a monitoring system for a water injection state of each layer of a multi-layer water injection well. The system comprises a ground control main machine and a sleeve, wherein a carrier steel pipe cable, cable passing packers and multiple underground water distribution devices are arranged in an inner cavity of the sleeve; the multiple underground water distribution devices are connected with the carrier steel pipe cable and an oil pipe in the sleeve; each underground water distribution device is corresponding to one distribution stratum, and is used for acquiring injection state data of the corresponding distribution stratum in real time; the cable passing packers are connected with the oil pipe, and are packed at the two ends of each underground water distribution device, so that a sealed water injection cavity is formed at each place where an underground water distribution device is situated; the carrier steel pipe cable is used for transmitting the injection state data of each distribution stratum acquired by each underground water distribution device to the ground control main machine in real time; and the ground control main machine is used for storing the injection state data of each distribution stratum. The system can monitor the injection state data of the water injection well in real time for a long time, and prevents the scene monitoring.
Owner:PETROCHINA CO LTD

Three-dimensional cell culture medium for anti-tumor drug screening system and preparation of three-dimensional cell culture medium

The invention discloses a novel medium for three-dimensional tumor cell culture. The three-dimensional cell culture medium can be used for wrapping tumor cells for three-dimensional culture so that anti-tumor drugs can be further screened. According to preparation of the three-dimensional cell culture medium, a sodium alginate solution, a sodium hyaluronate solution and an extracellular culture medium Matrigel are mixed in a proper proportion, and then cells are wrapped. Sodium alginate can be used for directly wrapping cells, but is bad for proliferation and differentiation of tumor cells, while Matrigel is an ideal cell three-dimensional culture medium bu is high in price, poor in mechanical strength and bad for screening and pharmacological research of anti-tumor drugs. The mechanical property of the medium is improved; meanwhile, formation of the tissue structure of extracellular culture cells is effectively promoted, usage of Matrigel is reduced or replaced, the cost of tumor cell three-dimensional culture is greatly reduced, xenograft and animal experiments can be conveniently carried out on three-dimensional cells, and the preparation method is simple and high in practicability.
Owner:GUANGDONG UNIV OF TECH

Medical insurance data-based clinical pathway analysis method

The present invention discloses a medical insurance data-based clinical pathway analysis method. The method comprises a medical insurance data cleaning step and a medical insurance data analyzing step. During the medical insurance data cleaning step, invalid hospitalization data and invalid prescription detail data are removed. Meanwhile, data are clustered based on identical disease entity numbers and identical hospital level numbers, so that a plurality of analysis units are established. During the medical insurance data analyzing step, medical insurance analysis items in the analysis unitsare subjected to empirical range analysis. The empirical range analysis is in the form of grouped empirical range analysis or non-grouped empirical range analysis, wherein the sample most aggregated distribution range of medical insurance analysis items is calculated. When the frequency sum of the most aggregated distribution range is larger than a preset frequency, the empirical range of the medical insurance analysis items is obtained. According to the invention, medical insurance data are cleaned and analyzed, and then the clinical pathway analysis is conducted based on medical insurance big data. The accuracy and the scientificity of the clinical pathway analysis are improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1

Raman spectrometer for detecting specific narrow wave number range

The invention relates to a raman spectrometer for detecting a specific narrow wave number range. The raman spectrometer comprises laser transmitting equipment, spectrum collection equipment and data processing equipment, wherein the laser transmitting equipment is used for obtaining a power regulated exciting light beam; the spectrum collection equipment is used for lighting the power regulated exciting light beam to the surface of a sample to perform raman scattering, filtering off oriented rayleigh scattered light to obtain oriented raman scattered light, and allowing the oriented raman scattered light to be received by a receiver; the data processing equipment is computer equipment connected with the receiver, and is used for formation, analysis and judgment of an obtained raman spectrum; the receiver is a single photon detector; and the oriented raman scattered light is finally received by the single photon detector. Compared with the prior art, the raman spectrometer can realize high-efficiency utilization of a photon, and can realize rapid and high-sensitivity detection of the raman spectrum of the specific narrow wave number range.
Owner:上海氘峰医疗科技有限公司

Micro-plastic extraction device based on electrostatic technology

The invention relates to a micro-plastic extraction device based on the electrostatic technology. The micro-plastic extraction device based on the electrostatic technology comprises a machine box, a feeding device, a high-voltage composite electrode, a roller electrode and hoppers, wherein the feeding device, the high-voltage composite electrode, the roller electrode and the hoppers are arranged in the machine box. One end of the feeding device is connected with the box wall of the machine box. The other end of the feeding device is located above the roller electrode. The high-voltage composite electrode is arranged above the right side of the roller electrode. An electrostatic field is formed between the high-voltage composite electrode and the roller electrode, so that air is ionized, and a great number of electrons are generated. The hoppers are located below the roller electrode. According to the micro-plastic extraction device based on the electrostatic technology, effective separation and extraction are conducted on micro-plastics in silt through the corona electrostatic technology, the workload of manual extraction and separation is greatly lightened, and the separation efficiency is improved. The micro-plastic extraction device based on the electrostatic technology can be widely applied to the technical field of environment monitoring and the technical field of separating micro-plastics from water body sediments.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Remote controlled/hand cotrolled timing instrument with communicating interface and synthetic speech

The instrument includes body case and circuit board. Following parts are setup on case: high light character screen, tens minute place screen, minute place screen etc. remote control receiving header, manual reset, stop and start push buttons, preset push buttons, online data communication port, volume control knob, speaker and power cable etc. remote controller and manual operation can preset, start, stop and reset the instrument. Count down and clocking forward in case of overtime are displayed on digital large screen. Functions of voice hint and voice report are provided. Time data is kept in case of power failure. Data can be transferred to computer through online data port. The invented instrument is suitable to controlling time limit, such as interview, lecture etc.
Owner:林上港

Upper limb exoskeleton mechanical arm and control method of rehabilitation training

InactiveCN110236876AReduce the burden onPrevent secondary injury in rehabilitation trainingDiagnosticsGymnastic exercisingUpper limbSacroiliac joint
The invention discloses an upper limb exoskeleton mechanical arm and a control method of rehabilitation training, and the rehabilitation training is guided by medical staff and self-adaptive to patient limbs. According to the invention, the movement trajectory of rehabilitation training is recorded by a teaching mode, patient exercise intensity is identified by a deep learning framework, the identified results are embedded into an overall rehabilitation training control strategy based on deep reinforcement learning, and the adjusted joint movement rate signals are output to the mechanical arm to complete the rehabilitation training. On the premise of preventing secondary injuries of patients from the rehabilitation training, the method can eliminate the influence of hysteretic nature of movement signals and individual differences of bioelectric signals, improve the identification accuracy of exercise intensity and broaden the application area of rehabilitation movement trajectory by the vector fusion of movement signals and biological signals, so as to achieve advantages of reducing the burden of medical staff and optimizing the rehabilitation cycle of patients, thus improving the safety and applicability of the rehabilitation training.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Self-adaptive denoising method for partial discharge signals on basis of spectral kurtosis and S transformation

The invention discloses a self-adaptive denoising method for partial discharge signals on the basis of spectral kurtosis and S transformation. The self-adaptive denoising method comprises the following steps of: through a discrete signal rapid spectral-kurtosis diagram and S transformation time-frequency spectrum calculation, rapidly acquiring time-frequency characteristics of the partial discharge signals; by combination of the time-frequency characteristics of the partial discharge signals, optimizing value ranges of all parameters in a partial-discharge-signal matching atom dictionary in a self-adaptive manner; then finding atoms with maximum inner product with noised partial discharge signals as optimum matching atoms from the optimized results of the partial-discharge-signal matching atom dictionary by an MP (Matching Pursuit) algorithm; finally, on the basis of the optimum matching atoms obtained by all iterations, carrying out sparse representation on the original partial discharge pulse signals so as to achieve the purpose of denoising the partial discharge signals. The self-adaptive denoising method disclosed by the invention has the advantages that the accuracy of the denoising result is high, no waveform distortion is caused, no limitation on the number of measured local discharge pulses and the positions of the pulses is formed, and the application is wide.
Owner:SOUTHWEST PETROLEUM UNIV

Loss user prediction method and device, computing equipment and medium

The invention discloses a lost user prediction method and device, computing equipment and a medium, and the method comprises the steps: obtaining a user data set which comprises a plurality of piecesof user data; Inputting each piece of user data into the lost user prediction model for processing, so as to predict the probability of user loss corresponding to the user data; And determining lost users according to the probability of user loss corresponding to the user data.
Owner:BEIJING TENGYUN TIANXIA SCI & TECH CO LTD

High-throughput absolute quantification method for three-domain microorganisms in soil

InactiveCN110218807AEnables high-throughput quantificationAccurate and reliable high-throughput absolute quantitative assay resultsMicrobiological testing/measurementMicroorganism based processesMicroorganismInternal standard
The invention discloses a high-throughput absolute quantification method for three-domain microorganisms in soil. The method comprises the following steps that a three-domain universal internal standard strain E.coli WYL is re-suspended in sterile water to obtain a bacterial suspension with OD600 nm being 0.9-1.0; the three-domain universal internal standard strain is added into a soil sample; DNAin the soil sample is extracted; the three-domain universal internal standard strain in the sample is absolutely quantified; high-throughput sequencing of the soil sample is conducted; the absolute content of three-domain microorganisms is calculated. By means of the method, it is achieved that the absolute content of the three-domain microorganisms is represented, and therefore, the aim of cross-sample and cross-domain mutual comparison between the three-domain microorganisms can be achieved; the method provides a technical support for promoting community research on the three-domain microorganisms as a whole.
Owner:ZHEJIANG UNIV

Wearable lung sound detection device

InactiveCN105662459AQuick and easy to wearFacilitate disease progression and treatment progressStethoscopeElectricityEngineering
The invention relates to a wearable lung sound detection device, which comprises an acoustic-electric conversion sensor and a soft plastic suction cup. The front of the sensor extends out of the shell and enters the inner cavity of the soft plastic suction cup installed on the shell. The circuit board of the lung sound collection is equipped with a microprocessor, a lung sound signal processing module, an A / D sampling module and a power supply module. The acoustic-electric conversion sensor is used to transmit the collected lung sound signal to the lung sound signal processing module, and the lung sound signal processing module is used to amplify and filter the collected lung sound signal to the A / D sampling module, and the A / D sampling module The preprocessed lung sound signal is A / D sampled and the sampled digital lung sound signal is saved as an audio file, and the microprocessor communicates with the intelligent terminal through a wireless transmission module. It can accurately collect digitized lung sounds, and realizes a wearable lung sound collection device.
Owner:THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA

Film watching information recording method and device for video-on-demand cinema

The embodiment of the invention discloses a film watching information recording method and device for a video-on-demand cinema. The method comprises the steps that compartment players receive watching films sent by a local server and play the watching films; and after the playing is finished, the compartment players send film watching information of the watching films to the local server, so the local server sends the film watching information to a cloud server for recording. The method also comprises the steps that the local server receives triggering operation of selecting the films by users and sends the corresponding watching films to the compartment players corresponding to the users according to the triggering operation; and the local server receives the film watching information sent by the compartment players and sends the film watching information and user identifiers of the users to the cloud server for associated recording. According to the embodiment of the invention, the film watching information is sent to the cloud server for recording by the compartment players, the film watching data of the users corresponding to the compartments can be recorded conveniently, thereby facilitating follow-up analysis of film watching habits of the users, and the better film watching service is provided for the users.
Owner:BEIJING VIDON TECH CO LTD

Data message processing method, system and device and readable storage medium

The invention belongs to the field of information communication, and discloses a data message processing method, system and device and a readable storage medium, and the method comprises the steps: obtaining the field information of all modifiable fields in a preset initial message format, and obtaining a modifiable field group; obtaining and modifying the modifiable field group according to the modification information to obtain a demand field group; modifying the initial message format according to the demand field group to obtain a message format; and generating a data message based on themessage format. The modifiable field group is defined by analyzing the construction elements of the data message, so that the required data message format can be flexibly constructed, and the requireddata message is generated. According to the method and the device, the problem of difficulty in data message information display, modification and configuration of complex data message information due to the fact that only one group of hexadecimal data can be edited to help a user to generate flow when facing an undetermined message format is effectively solved.
Owner:CHINA ELECTRIC POWER RES INST +1

Biological sequence analysis platform and using method thereof

The invention discloses a biological sequence analysis platform which comprises a computer, an input module, an analysis module and an output module, wherein the computer comprises a user interface; the input module is used for manually inputting a biological sequence to be analyzed on the user interface, or uploading a readable-format file recording the biological sequence; the analysis module is used for analyzing the biological sequence obtained by the input module to obtain an analysis result; and the output module is used for displaying the analysis result obtained by the analysis module on the user interface, and / or exporting and storing the analysis result in a pre-defined external file outside the biological sequence analysis platform. The biological sequence analysis platform disclosed by the invention has a simple interface, realizes one-stop analysis, and remarkably saves labor and material resources; meanwhile, by adding a batch processing module, the result visualization and storage are enhanced to facilitate the subsequent analysis and view; and in the analysis process, the powerful search algorithm is improved, and the corresponding analysis time is shortened.
Owner:GENEWIZ INC SZ

Method for judging availability of data transmitting and receiving channels of integrated circuit boards and vehicle-mounted device

The invention provides a method for judging availability of data transmitting and receiving channels of integrated circuit boards and a vehicle-mounted device. The method for judging availability of the data transmitting and receiving channels of the integrated circuit boards comprises steps as follows: detecting whether the data transmitting and receiving channels of the integrated circuit boards are in an available state; performing Beidou positioning and time information and / or vehicle-mounted information interaction between a master control integrated circuit board and a communication integrated circuit board; uploading a file containing the vehicle-mounted information and the positioning information, and / or downloading a vehicle-mounted configuration information file. The method for judging availability of the data transmitting and receiving channels of the integrated circuit boards and the vehicle-mounted device can detect availability of a serial port, Socket, 3G and WLAN, so that Beidou positioning and time information and the vehicle-mounted information are stored in and received by a protection recorder and a ground receiving system. States of communication data transmitting and receiving channels of the master control integrated circuit board, the communication integrated circuit board, a Beidou integrated circuit board and a protection recording integrated circuit board are judged and detected, communication states of the integrated circuit boards are conveniently and accurately displayed through lamps, and whether the vehicle-mounted device is accurately positioned and reliably operates is known in time.
Owner:BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD

Method for predicting tight oil fracturing range based on DL model of physical constraint

The invention provides a method for predicting a tight oil fracturing range based on a DL model of physical constraints, and belongs to the technical field of tight oil fracturing. The method comprises the following steps: firstly, providing a reasonable physical hypothesis for a studied problem and setting related parameters, then establishing a two-dimensional axisymmetric numerical calculation model, dividing a network and setting time steps, establishing a deep learning model, setting a structure and other parameters of a deep neural network model, and obtaining a prediction result by using a test set; and evaluating a prediction result by using an L2 norm and a decision coefficient R2 as evaluation indexes, comparing the prediction precision of the neural network under the condition of considering the physical constraint and the prediction precision of the neural network under the condition of not considering the physical constraint, and finally changing the training data size on the basis of the neural network added with the physical constraint and measuring the prediction capability of the neural network. The method can be applied to rapid prediction of flow field distribution of two-drive model partitions, is high in prediction accuracy and adaptability, is high in calculation speed, and can well solve the problem of unknown tight oil flow field distribution and the problem of small sample prediction.
Owner:UNIV OF SCI & TECH BEIJING

Preprocessing method for automatic water quality monitoring data

The invention provides a preprocessing method for automatic water quality monitoring data. The preprocessing method comprises the following steps: S1, counting and marking missing values in an original data set; S2, performing time sequence decomposition on the data in the original data set to obtain a residual term; S3, identifying an abnormal value in the residual item, and deleting and / or correcting the abnormal value; and S4, interpolating missing values and deleted abnormal values in the original data set by adopting a linear interpolation method to obtain a processed complete data set. Compared with the prior art, the preprocessing method has the advantages that abnormal values and missing values in the automatic water quality monitoring value set are effectively processed, and a complete and high-reliability data set can be obtained, so that convenience is provided for subsequent analysis and application of automatic water quality monitoring data.
Owner:TIANJIN UNIV

Automated testing method for application performance

The invention provides an automated testing method for application performance. The automated testing method is based on an Android system mobile terminal. In the testing method disclosed by the invention, a script program is combined with an adb tool to automatically obtain APP performance, the APP performance can be recorded under a situation of no-man monitoring so as to be favorable for subsequent analysis; and a script program is installed in a computer, resources in the mobile terminal are completely released during testing, and only an APP to be tested operates, the resources of the mobile terminal are not occupied, and a testing result is accurate.
Owner:SICHUAN FEIXUN INFORMATION TECH CO LTD

Data storage and backtracking platform for N3 sweepers

The invention discloses a data storage and backtracking platform for N3 electric sweepers. The data storage and backtracking platform is composed of an online end and an offline end. The online end isused for carrying out data online acquisition and storage on the road garbage information, collecting the current upload gear operation of the sweeper, providing data for the upload gear selection module and providing the optimal upload gear selection under the current garbage scene for the online vehicle speed optimization control module so as to realize decoupling of the upload operation and vehicle speed control; the off-line end performs uploading gear selection algorithm training by utilizing the data collected by the on-line end to obtain relevant parameters in an uploading gear selection algorithm and send the relevant parameters to the on-line end uploading gear selection module for iteratively updating an uploading gear control algorithm of the on-line end; the neural network parameters from the online vehicle speed optimization control modules of the plurality of sweepers are fused and then transmitted to each sweeper; and the on-line end and the off-line end realize data transmission through a control information updating system.
Owner:JILIN UNIV
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