44results about How to "The data processing method is simple" patented technology

The invention discloses a truss structure damage positioning method based on an added mass, and belongs to the technical field of structure monitoring. The truss structure damage positioning method is characterized in that: the damages to rod pieces of a truss are located by using a method for arranging and testing the rod pieces one by one through a mass block and a sensor. The bending stiffnessof the rod pieces of the truss is required to be smaller than the axial rigidity; a response under partial excitation mainly reflects rod piece information; and the damage positions of the rod piecesare judged by comparing the positions of mass-added rod piece frequency response peak values. According to the method, the shortcomings that the truss structure is insensitive to partial damages and the damage positioning of the rod pieces is difficult to perform are overcome; and the method has the characteristics of simple actual operation, low cost, accurate identification and the like, and isgood in application prospect.

The invention discloses a method applied to evaluation of flow conductivity of shale-gas-combined sand fracturing fracture. The method comprises the following steps: a, simulating a sand bar transporting process in shale-gas-slickwater-combined sand fracturing fracture by means of an experiment device for simulating flowing of proppants in a visual fracture net to obtain sand bar transporting video of the combined sand fracturing fracture under different experiment conditions; b, obtaining a distribution curve of the proppants with different particle diameters by virtue of a gray processing method and a point-by-point scanning method and obtaining distribution shape function of the proppants with different particle diameters by virtue of a linear regression method; c, building the sand bar distribution shape function of an API flow guide chamber by utilizing geometric similarity principle according to the size of the API flow guide chamber, paving shapes of the corresponding proppants and implementing evaluation of flow conductivity of shale-gas-combined sand fracturing fracture. The method is capable of simply and accurately implementing quantitative evaluation of the flow conductivity of shale-gas-combined sand fracturing fracture; experiment support is provided for optimizing the combined sand fracturing design and improving the flow conductivity of the shale fracturing fracture.

The invention discloses a minimum distance sorting method assisted by a digital mapping brief spelling coding method and an internal sorting method, which is directly applied in the technical field of the total field digital mapping. The brief spelling coding method is composed of a type code+ (a series number)+ (a descriptor)+ (a feature code)+ (-an attribute code)(contents in the brackets are selectable), wherein the measured data is sorted by the minimum distance sorting method assisted by the brief spelling coding method. The minimum distance sorting method is as follows: sequentially calculating distances between the base point and the rest points from the starting point of the surface feature data point and taking the starting point of the surface feature data point as the base point, and selecting the data point with the shortest distance as the connection point with the base point, and taking the selected point with the shortest distance as the base point again, and sequentially calculating the distances between the base point and the rest points, and selecting the data point with the shortest distance as the connection point with the base point, and repeating the steps until no rest points are left; finally, sorting the data points with the shortest distances from each selection based on the precedence such that the sequence fully ensures the connection relationship between each surface feature data point and the other points. The minimum distance sorting method can achieve full automation on field mapping fast coding and interior data processing and map making.

The invention discloses a control method of a clothing information management system. The clothing information management system includes an identification device, a control device, a storage device, an information editing device, and an identification mark on the clothing. The control method includes: the identification device identifies The identification mark obtains its unique identification information, the information editing device edits the clothing information for the unique identification information, the control device performs information processing on the edited clothing information, generates a clothing information code with a set format, and the clothing information The information code and the corresponding unique identification information are correspondingly stored on the storage device. In the present invention, the user freely inputs clothing information through the information editing device, and the control device selects keywords according to the clothing information input by the user, and selects the clothing information of each clothing. attribute information, without the need for the user to input clothing information in a specified format, which facilitates the user to edit clothing information, and intelligently selects the required clothing information from the clothing information edited by the user.

The invention provides a method for predicting the number of passengers on a bus based on vehicle-mounted GPS and site WiFi. The WiFi detection device arranged at the site detects the MAC address signal of a mobile terminal with a WiFi function near the site at a predetermined frequency, combined with the vehicle-mounted GPS system. The real-time position information of the bus is obtained, and the matching model of the detection time of passengers getting on and off the bus and the bus stop time are established, the interference data near the station is screened out, and the real-time passenger number when the bus leaves the station is accurately predicted; the present invention greatly reduces It reduces the amount of interference data, simplifies the data processing method and improves the accuracy of the data processing results, and accurately predicts the real-time number of passengers when the bus leaves the station; it can provide real-time bus congestion information for passengers waiting for the bus, and provide public travel and The organization and deployment of the urban traffic system, the optimization of the departure frequency, and the real-time monitoring of vehicle passenger flow provide key information references.

The invention discloses a control method of a clothing processing system. The clothing processing system includes a washing device, a control device, an identification device, a storage device, and an information editing device. Clothes are provided with an identification mark, and the identification device identifies and obtains a unique identification of the identification mark. information, the information editing device receives the information edited by the user, the control device processes and generates the clothing information code corresponding to the unique identification information and stores it in the storage device; The corresponding relation of the information code acquires the clothes information from the storage device, and recommends the corresponding washing program according to the clothes information, and the washing device executes the corresponding washing program. In the present invention, the user can edit the clothing information corresponding to the unique identification information by himself, and the control device recommends a washing program after processing and storing, which not only makes the editing of the clothing information more flexible and intelligent, but also makes the recommended washing program more optimized.

The invention discloses a method for detecting and evaluating a spherical hole composite location degree error, which comprises the steps of respectively calculating the distance between upper and lower limit points on a fitting axis of each hole and an ideal axis, acquiring the maximum distance, and enabling the maximum distance to be multiplied by 2 so as to act as a first error result of the composite location degree error, that is, an absolute location degree error; and acquiring the location of a minimum containing cylinder, sequentially calculating the distance between actual coordinates of all measuring points to an axis of the minimum containing cylinder, finding out the axis location of the minimum containing cylinder through an optimization algorithm, enabling the maximum distance between all of the points to the axis of the minimum containing cylinder to be the minimum, enabling the maximum distance to be multiplied by 2 so as to act as a second error result of the composite location error, that is, a relative location degree error. The method disclosed by the invention solves a problem that a plurality of space variables exist in solving the spherical hole composite location degree error; a relative location degree error between hole groups and a location degree error of each hole relative to the reference in the spherical hole composite location degree can be accurately solved; and an evaluation error in the detection process can be reduced.

The invention discloses a method for measuring tollmien-schlichting (T-S) waves in a two-dimensional fluid passage based on local pressure, and belongs to the technical field of flowing test. The method comprises the following steps of: connecting a circulating water pump and a flow meter to a circulation system of the two-dimensional fluid passage to be tested, establishing a self-circulating flowing system, arranging a pressure sensor in a contact way on the wall surface of the two-dimensional fluid passage, and drilling a hole leading to the interior of the fluid passage in the center of a contact surface; connecting the pressure sensor with a computer data acquisition system; enabling fluid in the fluid passage when entering the two-dimensional fluid passage through a measurement system pipeline to enter in a gradually varied flow form, and forming stable fully developed flow after the fluid passes through a flow stabilization inlet; and recording local pressure signals varied along with time under different flowing Reynolds numbers, and performing processing according to the time history of the local pressure to obtain the natural frequency and the amplitude of the T-S waves. Lower-order to higher-order T-S waves can be measured in any two-dimensional fluid passage, used related equipment is low in cost and convenient to popularize, and a data processing method is simple, intuitive and easy to master.

The invention discloses a method for improving the phase accuracy of a vector network analyzer scanning test, and specifically relates to the technical field of vector network analyzer scanning measurement. In the scanning measurement process, the invention measures the frequency of the intermediate frequency signal while measuring the S21 phase, calculates the time delay of the measured part through the frequency deviation, and uses the time delay of the tested part to correct the measured initial measurement value of the S21 phase. The method can obtain the factors that affect the phase measurement result and eliminate the influence, and solve the problem that the existing measurement method has a large error in the phase result when the S21 measurement is performed on a long test piece.

The invention discloses an oligonucleotide library classification and assessment method based on capillary zone electrophoresis, and belongs to the field of creature isolation analysis. The method comprises the following steps of: step one, carrying out capillary zone electrophoresis on an oligonucleotide library, and obtaining a secondary library within an oligonucleotide library electrophoresis time range according to transfer time slicing collection; and step two, respectively mixing each secondary library with a homogeneous target molecule, carrying out capillary zone electrophoresis, and comparing the strong or weak of each secondary library and target molecule interaction, thus obtaining the strongest secondary library of the target molecule combining capacity. The classification and assessment method can be used for realizing the fractionation of complicated constituent oligonucleotide library, and obtaining the strongest secondary library of the target molecule combining capacity; and the strongest secondary library of the combining capacity is utilized as a next CE (capillary electrophoresis)-SELEX(systematic evolution of ligands by exponential enrichment) technical screening library, the screening range is reduced, and the screening period of an adaptation body is shortened.

The invention discloses an eddy current detection device for the coating thickness of a galvanized sheet for automobiles, comprising an eddy current probe, an impedance analyzer, a fixture for fixing a tested piece and a computer; the eddy current probe is placed on the surface of the tested piece, Generate a sinusoidal excitation signal through the impedance analyzer, drive the eddy current probe to generate the excitation magnetic field, and also generate the eddy current magnetic field inside the test piece. The change is converted into an electrical signal and fed back to the impedance analyzer to obtain the inductance value. After the inductance value is processed by the zinc coating thickness detection data model established by the computer, the thickness of the coating of the tested piece can be obtained; at the same time, a device using the device is disclosed. In the detection method, the present invention selects the inductance value as the characteristic parameter of thickness measurement, improves the thickness measurement range and sensitivity, can realize fast and accurate online detection of the coating thickness of galvanized sheet, and has great potential economic benefits.

The invention discloses a high-speed loading material dynamic indentation experimental method which is characterized by comprising the following steps of: firstly, fixedly arranging a cylindrical tested part on the end face of the front end of a circular section compression bar, adhering a strain gauge to the compression bar and electrically connecting the strain gauge and a high dynamic strain indicator; then fixedly arranging a light-triggered speed measurement device in front of the tested part; launching a shot by a shot lunching device and enabling the shot to pass through the light-triggered speed measurement device to impact the tested part; and finally, obtaining a press-in force, a press-in speed and a press-in displacement time history of the tested part by a relation. The high-speed loading material dynamic indentation experimental method has the advantages that by the experimental method, dynamic mechanical properties (such as the press-in force, the press-in speed and the press-in displacement time history) of the tested part in the impact process can be measured, so that the dynamic mechanical properties of a material are more deeply researched; moreover, the method can be suitable for a higher impact speed; the impact speed can reach 100m / s; and meanwhile, the experimental method has high measurement accuracy and adopts a simple data processing method.