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64results about How to "Data processing is accurate" patented technology

Method and system for acquiring the line of sight direction of a human eye by a single camera

The invention relates to a method and system for acquiring the line of sight direction of a human eye by a single camera. The method comprises the following steps: S1, acquiring human face images of various angles by using an image data acquisition device, and using the image data acquisition device to acquire the data for neural network depth learning and training; Step S2, at least calculating the coordinates of the position of the human eye in the image acquired in step S1 and the coordinates of the position of the gaze position of the corresponding line of sight; Step S3: the human face images of each angle in the step S1 include the human eye position images, and the gaze position coordinates are input into the neural network for machine learning; when the human face image is inputted, the line of sight can be correctly outputted through the training; Step S4, collecting the human face image when the driver is driven by a real-time acquisition camera, and inputting the human faceimage into the trained neural network, wherein the neural network outputs the real-time correspond line-of-sight direction of the human face image. The method adopts the improved image data training method, coordinate system transformation method and the corresponding neural network model. The visual line of sight calculated by the network model has high precision, which meets the needs of variousautomatic driving/assistant driving.
Owner:CHUSUDU (SUZHOU) TECH CO LTD

Parcel delivery method of intelligent parcel delivery system

The invention discloses a parcel delivery method of an intelligent parcel delivery system. The parcel delivery method comprises the steps that (1) the usage quantity authority of a delivery company for storage cases is set through a management terminal of the intelligent parcel delivery system; (2) a postman registers to become a parcel delivery user and makes a delivery appointment; (3) the management terminal of the intelligent parcel delivery system is matched with a corresponding delivery cabinet and displays the number of storage cases which are empty at present; (4) the postman selects one corresponding empty storage case and makes an appointment; (5) the postman inputs logging-in information to the delivery cabinet, and the information is checked through a PC controller; (6) appointment information is retrieved through the PC controller and displayed on an operation interface; (7) the postman scans the list number of a parcel and selects one storage case, the storage case is opened under the control of the PC controller, and the postman puts the parcel into the storage case; (8) the postman repeats the step (7), and delivery of all parcels is finished. The parcel delivery method achieves intelligent delivery of the parcels, so that not only is delivery convenient, but also manpower cost is low.
Owner:CHENGDU BAIDE POST SPECIAL EQUIP MFG

Intelligent monitoring and early warning system for creeping landslide

The invention relates to the field of geological disaster monitoring, particular to an intelligent monitoring and early warning system for the creeping landslide. The intelligent monitoring and earlywarning system comprises a server, a sensor and an information transmission part. The sensor and the server form communication connection by the information transmission part. The sensor includes a displacement sensor and a rainfall sensor. The server includes a contingence angle data processing module and an early warning module; the contingence angle data processing module is used for calculating a contingence angle based on displacement data and determining whether to carry out early warning according to the determination of condition that whether contingence angle exceeds a threshold. According to the invention, a landslide forecasting method for acquiring the landslide approaching contingence angle based on a landslide creep constant-velocity deformation rate is employed; and thus thelandslide approaching contingence angle of the landslide can be obtained only by determining the stage and the constant-velocity deformation rate of the landslide, so that the good early warning andforecasting effects for the destruction and unstability of the landslide are realized.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Analysis of the performance of a portion of a data processing system

The present invention provides a system and method for controlling a simulator to run a software simulation of a data processing system in order to generate simulated timing data indicative of performance of an unmodelled portion of the data processing system not modelled by the software simulation. The software simulation provides a timing accurate model of those parts of the data processing system other than the unmodelled portion. The method of the invention comprises inputting to a controller of the simulator real trace data obtained from execution of a program by the data processing system, the real trace data identifying the sequence of instructions executed by the data processing system, and associated timing data. The method then involves running the software simulation under the control of the controller, the controller determining from the real trace data the sequence of instructions executed by the data processing system and controlling the software simulation to ensure that the same sequence of instructions is executed within the software simulation. Then simulated timing data is generated resulting from execution of the sequence of instructions within the software simulation, whereby the performance of the unmodelled portion of the data processing system is derivable from a comparison of the real trace data and the simulated timing data. This technique provides a particularly efficient technique for obtaining performance information about a portion of a data processing system which is not modelled within a software simulation.
Owner:ARM LTD

Bowl-shaped flexible three-dimensional array ultrasonic probe

The invention aims at providing a bowl-shaped flexible three-dimensional array ultrasonic probe. The bowl-shaped flexible three-dimensional array ultrasonic probe has the advantages of locating accuracy, simple device and the like. The bowl-shaped flexible three-dimensional array ultrasonic probe comprises a bowl-shaped flexible shell, a composite piezoelectric crystal plate, a coupling agent injecting device, connecting lines and the like, wherein the bowl-shaped structure can well attach to the detected surface of a flexible body, an ultrasonic transducer adopts the multi-array-element array composite crystal plate structure, the plurality of array elements are distributed according to the Fibonacci helical line, 2n array elements compose the ultrasonic array transducer, according to the delaying sequence, each array element emits ultrasonic waves once, the other array elements including the emitting array element receive signals, and a storage records and stores the 2n signals. In combination with the phased array technology principle, the aperture synthesis technology is adopted for carrying out data after-treatment on the extracted 2n signals, and then the image reflecting the information including the position, degree and the like of the lesion tissue is obtained.
Owner:常俊杰

Analysis of the performance of a portion of a data processing system

The present invention provides a system and method for controlling a simulator to run a software simulation of a data processing system in order to generate simulated timing data indicative of performance of an unmodelled portion of the data processing system not modelled by the software simulation. The software simulation provides a timing accurate model of those parts of the data processing system other than the unmodelled portion. The method of the invention comprises inputting to a controller of the simulator real trace data obtained from execution of a program by the data processing system, the real trace data identifying the sequence of instructions executed by the data processing system, and associated timing data. The method then involves running the software simulation under the control of the controller, the controller determining from the real trace data the sequence of instructions executed by the data processing system and controlling the software simulation to ensure that the same sequence of instructions is executed within the software simulation. Then simulated timing data is generated resulting from execution of the sequence of instructions within the software simulation, whereby the performance of the unmodelled portion of the data processing system is derivable from a comparison of the real trace data and the simulated timing data. This technique provides a particularly efficient technique for obtaining performance information about a portion of a data processing system which is not modelled within a software simulation.
Owner:ARM LTD

Wafer automatic needle aligning device and method

The invention provides an automatic wafer alignment device and method. The automatic wafer alignment device comprises an image acquisition assembly, a movement assembly, a data processing assembly, a wafer tray used for carrying wafer to be aligned, and a probe card for alignment with the wafer to be aligned, wherein the image acquisition assembly consists of a camera of which the surface of a lens is provided with a cross wire mark, the movement assembly performs fixed-value movement through a grating ruler, the image acquisition assembly is used for acquiring images of the wafer tray, the probe card and the wafer to be subjected to probe alignment and transmitting the images to the data processing assembly; the data processing assembly is used for processing the received image data and calculating needle aligning parameters according to the data; the wafer tray is fixedly connected with the movement assembly, and the wafer tray is driven by the movement assembly to move. Wafer needle alignment is carried out through image recognition and grating ruler positioning, and needle alignment in the X direction, the Y direction and the Z direction can be completed at the same time; a calibration block is not used, so installation difficulty and needle alignment operation steps are reduced; the needle alignment method is simple, data processing is more accurate, and alignment precision and efficiency are improved.
Owner:CHANGSHUN GUANGHUA MICRO ELECTRONICS EQUIP ENG CENT

Precise processing method and system for rotary large-breadth optical satellite

InactiveCN111561936AData processing is accurateRealize the accurate processing method of earth observationInstruments for comonautical navigationSatellite radio beaconingObservation dataSatellite
The invention provides a precise processing method and system for a rotary large-breadth optical satellite. The precise processing method for the rotary large-breadth optical satellite comprises the steps of: acquiring optical camera area array subsystem parameters and observation data; according to the optical camera area array subsystem parameters and the observation data, constructing a geometric transformation relationship between a rotary optical satellite body and an optical camera area array subsystem focal plane to obtain a satellite body and camera focal plane transformation matrix; calculating rotary optical satellite attitude and orbit control data at the imaging moment; constructing a rotary large-breadth optical satellite precise processing geometric model according to the satellite body and camera focal plane transformation matrix and the rotary optical satellite attitude and orbit control data; constructing a rational function fitting model of a standard image product according to the rotary large-breadth optical satellite precise processing geometric model; and carrying out rational polynomial coefficient parameter calculation according to the rational function fitting model of the standard image product.
Owner:INNOVATION ACAD FOR MICROSATELLITES OF CAS +1

Optical ultrasound imaging device for diagnosing breast cancer

The invention discloses an optical ultrasonic imaging device for diagnosing breast cancer, which comprises a bowl-shaped flexible ultrasonic probe, a laser probe, a pulsed laser emitter, an ultrasonicreceiver, a data processing unit and an image display. The device comprises a bowl-shaped flexible ultrasonic probe, a laser probe, a pulsed laser emitter, an ultrasonic receiver, a data processing unit and an image display. The ultrasonic transducer adopts bowl-shaped shell and flexible structure, adopts multi-array array composite wafer structure, utilizes multi-array array composite wafer, andcombines the principle of phased array technology to obtain the signal sources with different initial phases. An ultrasonic transducer is connected to an ultrasonic receiver. A laser probe connectedwith a pulse laser emitter emits a laser beam with a certain frequency to that inside of the tissue, molecules or substances that absorb light at a particular wavelength are called chromophores. The light energy absorbed by the chromophore is converted into heat energy by molecular vibration and thermoelastic expansion to generate ultrasonic wave, which is detected by an ultrasonic sensor in the device, and the waveform signal is synthesized into an image through an ultrasonic receiver and a data processing unit and displayed on an image display.
Owner:NANCHANG HANGKONG UNIVERSITY

Method for detection of maltopentaose by ultra-high performance liquid chromatography-mass spectrometry

ActiveCN108732291ASuitable for analytical testingQualitatively accurateComponent separationMass numberGradient elution
The invention discloses a method for detection of maltopentaose by ultra-high performance liquid chromatography-mass spectrometry. The method includes the steps of: (1) taking an appropriate amount ofmaltopentaose, adding water for dissolving to prepare a test solution of certain solution; (2) performing sample introduction, and conducting detection according to the following chromatographic andmass spectrometric conditions that: according to the chromatographic conditions: Waters Xbridge BEH Amide 2.1*100mm is adopted as the chromatographic column, acetonitrile-water is used as the mobile phase for gradient elution, 87% acetonitrile can be maintained in 0-15min, and in 15-20min, 87% acetonitrile gradually decreases to 15% acetonitrile, and in 20-30min, 15% acetonitrile is maintained; according to the mass spectrometric conditions: an ESI source is taken, a selected ion monitoring (SIM) mode is used, the fragmentor is 130v, the sheath gas flow is 12L / min, the caplliary voltage is 4000v, the accurate mass number [M-H]<->827.4 is extracted, and the common logarithm of concentration and peak area is utilized for linear quantitation. The method has the characteristics of accurate qualitative analysis, high sensitivity, high precision, good linearity and simple operation, and is suitable for analysis and detection of maltopentose.
Owner:SHANGHAI BAINIAN SHIDANDE INSPECTION TECH +2

A computer man-machine interaction device

PendingCN109189233AAchieve teleportationConvenient human-computer interaction operationInput/output for user-computer interactionFixed frameInteraction device
The invention discloses a computer man-machine interaction device, belonging to the field of computer man-machine interaction. The computer man-machine interaction device includes a keyboard case, a fixing frame case, a keyboard connection board and a touch control connection board case; the upper surface of the keyboard case is fixedly connected with the lower surface of the fixing frame case, aboard outlet is arranged at the front end of the keyboard case, the keyboard connection board is movably installed in the outlet port, a keyboard is fixedly installed on the keyboard connection board,lateral openings are arranged on the left and right inner sides of the fixing frame case, a mobile device is movably installed in each lateral opening, one end of the mobile device is fixedly connected with the lower end of the lateral side of the touch connecting board, a touch screen is arranged on the middle surface of the touch control connection board, a notch is arranged on the middle of the upper end of the touch connecting board, and a pulling device is arranged on the notch. The invention can realize the use of a multifunctional man-machine interaction device. which has the advantages of simple structure, easy operation and low cost, and is suitable for the use of various masses, and is convenient and quick.
Owner:熊文昕

Automatic routing inspection device for operation test bench

The invention provides an automatic routing inspection device for an operation test bench, and the device comprises a routing inspection machine body and a detection system disposed in the routing inspection machine body. The detection system comprises a signal collection system, a control processing system, and a monitoring system. The collection system comprises a data collection apparatus and a conversion circuit, which are connected with each other. The control processing system comprises a power supply, a single-chip microcomputer, a clock device, a storage unit, and a positioning device. The conversion circuit is connected with the single-chip microcomputer, and the power supply supplies power to the single-chip microcomputer. The clock device and the positioning device are connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the storage unit. The monitoring system comprises a display, a drive motor and an alarm, wherein the display, the drive motor and the alarm are connected with the single-chip microcomputer. The device is simple in operation, can carry out the routing inspection of various types of information of the operation test bench automatically and accurately, can transmit the information to remote processing equipment in a wireless mode, and is clear and reliable in data.
Owner:ANHUI WANT AUTOMATION
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