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653results about How to "Data processing is simple" patented technology

Mobile positioning service method

The invention provides a positioning service method; firstly, a positioning management platform is connected with a plurality of LEs (logic elements) and LIUs (line internet units) through a communication network, wherein the LEs have the functions of positioning measurement, wireless sensing and communication, the LIUs have the functions of the wireless sensing and the communication; the LEs report positioning measurement data to the positioning management platform in a timing manner, and the positioning management platform obtains an optimal estimation of LE positions through an information fusion technology; when approaching a detection range of a wireless sensing unit of the LIUs, the LEs can be automatically identified, wherein an identification number ID-1 can be automatically read by the LIUs and is reported to the positioning management platform, and the positioning management platform corrects position data corresponding to the LEs. In the method of the invention, the data processing of the LEs can be greatly simplified, the power consumption is reduced, various positioning value-added services can be favorably developed, and particularly, the positioning services with requirements of low power consumption and hidden nature to the LEs can be favorably developed.
Owner:SHANGHAI QIDIAN INFORMATION TECH

Left and right foot dynamic recognition method based on plantar pressure distribution information

The invention discloses a left and right foot dynamic recognition method based on plantar pressure distribution information. The method includes the steps of plantar pressure data filtering, plantar pressure data clustering, single-step footprint image processing and left and right foot dynamic recognizing. An improved type IMF filtering algorithm is adopted for the plantar pressure data filtering. A K-means clustering algorithm is adopted for the analysis on the plantar pressure data clustering. The single-step footprint image processing includes the substeps of footprint image bilinear interpolation amplification, median filtering, morphological processing and the like. The left and right foot dynamic recognizing is achieved by conducting judgment on the basis of the extreme value distribution situations of fitted footprint profile curves and footprint width curves. By means of the method, plantar pressure data can be processed and analyzed in real time, and gait feature parameters in the walking process are calculated according to the starting and stopping time of each step of a footprint sequence. The method is simple, the recognition speed is high, the recognition accuracy is high, high robustness is achieved, and the method can be applied and popularized in hospitals, rehabilitation organizations and colleges, universities and research institutions working on related gait research.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1

Bidirectional magnetic saturated time difference fluxgate sensor

The invention discloses a bidirectional magnetic saturated time difference fluxgate sensor, which is characterized in that two ends of a sensor magnetic core are wound with exciting coils, the middle section of the sensor magnetic core is wound with induction coils, output poles of the induction coils are connected with an amplifying circuit, and the amplifying circuit is connected with a counting display circuit through a band-pass filter circuit and a retardation shaping circuit. By detecting and calculating a positive negative pulse time difference value output by the fluxgate sensor in a time domain, the strength of the measured magnetic field is judged. Compared with the prior fluxgate sensor, the detection circuit is simple, the measurement stability of the system is ensured without a feedback structure, a complex subsequent circuit is not needed, the required excitation current is lower, the data processing is simple, the measured relative quantity is little, the integral volume and power consumption of the sensor are effectively reduced, and the measurement result is acquired quickly. The fluxgate sensor avoids a filter-phase-sensitive demodulation-smooth filter circuit of the prior fluxgate sensor, makes up the defect that the prior fluxgate sensor has harsh process requirement, and achieves the digitized magnetic measurement of the fluxgate sensor.
Owner:JILIN UNIV

Device and method for measuring micro-pore size based on fiber Bragg grating

The invention provides a device and method for measuring a micro-pore size based on a fiber Bragg grating and belongs to the technical fields of precision instrument manufacture and precision test metering. The device consists of an aiming and signaling device for generating aiming signals, a length measuring device for measuring the movement distance of a micro-pore to be measured within a time interval of measuring measurement starting and stopping signals which are sent by the aiming and signaling device, and a computer for controlling a measurement process of the entire measuring device. The method comprises the following steps of: continuously moving a working table along a direction vertical to a length measurement direction, and moving the working table along a measurement line to obtain a maximum displacement, relative to the micro-pore to be measured, of a probe, so as to obtain the diameter of the micro-pore to be measured. According to the device and method disclosed by the invention, the adaptability of the aiming and signaling device to the environment is greatly improved. The device disclosed by the invention has the characteristics of simple structure, good real-time capability and easiness for actual application, and has obvious advantage of carrying out rapid and ultra-precise measurement and aiming on the size of the micro-pore.
Owner:HARBIN INST OF TECH

TOF depth camera three-dimensional coordinate calibration device and method based on virtual multi-cube standard target

The invention relates to a TOF depth camera three-dimensional coordinate calibration device and method based on a virtual multi-cube standard target. The device comprises a three-dimensional motion horizontally-moving platform, a TOF depth camera, a cubical target and a background board. The calibration method includes the steps that three orthometric one-dimensional motion horizontally-moving platforms move repeatedly in the three-dimensional direction, the virtual multi-cube standard target of a complex shape and with multiple feature points is formed, the space position and the three-dimensional measured coordinates of a target angular point can be accurately obtained, and high-precision three-dimensional coordinate calibration of the TOF depth camera is achieved. By means of the TOF depth camera three-dimensional coordinate calibration device and method, target angular point feature recognition difficulty of the TOF depth camera and measurement errors each time are greatly reduced, three-dimensional measurement precision of the TOF depth camera is improved, the angular point position and the number of feature points of the virtual multi-cube standard target can be set flexibly, and full-process high-precision automatic calibration is achieved easily.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI

Group relationship type identification method and apparatus

The invention discloses a group relationship type identification method and apparatus, and belongs to the field of data mining analysis. The group relationship type identification method comprises thesteps of receiving a group relationship type identification request; obtaining group information corresponding to the request; according to predefined target data fields, extracting target data corresponding to members in a group from the group information, thereby forming personal data sets; inputting the personal data sets to a group classification deep neural network model, wherein the group classification deep neural network model is obtained by training according to the predefined target data fields; and according to an output result of the group classification deep neural network model,determining a relationship type of the group. According to the technical scheme, the relationship type of the group can be identified through simple preprocessing operation and the group classification deep neural network model in combination with the data mining analysis technology, so that the manpower cost required for obtaining earlier stage features is reduced, the deployment and building complexity of the model is low, and the universality of the model is high.
Owner:TENCENT TECH (SHENZHEN) CO LTD
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