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54results about How to "Eliminate human interference" patented technology

Parallel near-infrared photoelectric sensing device and system and method for detecting organs and tissue of animals

Provided are a parallel near-infrared photoelectric sensing device and a system and method for detecting organs and tissue of animals. The parallel near-infrared photoelectric sensing device and the system and method for detecting the organs and the tissue of the animals can be applied to detection on the degree of blood oxygen saturation and concentration and variable quantity of the concentration of photoactive substances of skin, lymph, external genitals, prostate glands, brains, mammary glands, urinary bladders and other organs and tissue needing multiple depth levels or having physiological shifting. The parallel near-infrared photoelectric sensing device is characterized by comprising a sensing component distributing surface, a light source signal emitter array and an optical signal receiver array are arranged on the sensing component distributing surface, the light source signal emitter array comprises an emitter unit composed of at least two light source signal emitters, the optical signal receiver array comprises a receiver unit composed of at least two optical signal receivers, and the emitter unit and the receiver unit are arranged on the sensing component distributing surface in parallel or in a staggered mode.
Owner:李鲁亚 +1

Non-contact vibration measuring system and method

Provided is a non-contact vibration measuring system used for measuring vibration on the surface of a film. The system comprises two cameras, a tripod, a light source and a computer, the cameras and the light source are arranged on the tripod, the light source is used for irradiating a measured area on the surface of the film, the cameras shoot images of the measured area and send the images to the computer, and the computer processes the images to obtain the vibration condition on the surface of the film. Compared with the prior art, according to the system, long-distance non-contact stereoscopic measurement of the vibration amount and the strain amount on the surface of a flexible bag body can be performed, the man-made stress interference of contact measurement with the flexible bag body is eliminated, the measuring precision is substantially improved, conventional measuring points are expanded to a measuring region, and vibration and strain conditions of any point in the measuringregion can be analyzed; besides, the calibration function is provided, measuring errors due to installation of a binocular optical system are eliminated, rapid online acquisition and high-efficiency offline processing are realized, and the all-weather test capability is achieved.
Owner:北京天恒长鹰科技股份有限公司

Warehouse environment management and control intellectualized system

The invention discloses a warehouse environment management and control intellectualized system. The system comprises an image monitoring subsystem, a security protection subsystem, a smoke detection subsystem, an illumination subsystem, a temperature and humidity adjustment subsystem and a multimedia centralized monitoring platform. The system also comprises a local security protection early-warning sub-system and a cloud server. The multimedia centralized monitoring platform is connected with the image monitoring subsystem, the security protection subsystem, the smoke detection subsystem, the illumination subsystem and the temperature and humidity adjustment subsystem and is used for monitoring, adjusting and controlling the working conditions of each subsystem in a centralized manner.
Owner:GUILIN TRYIN TECH CO LTD

Sampling system and processing method for gas chromatograph

The invention discloses a sampling system and a processing method for a gas chromatograph. The sampling system comprises a control system, a reversing device, sampling interfaces, tail gas interfaces, carrier gas interfaces, quantitative loop groups and chromatographic columns, wherein each sampling gas path is composed of a carrier gas interface, a quantitative loop group and a chromatographic column. When tested samples are to be injected, each gas feeding path is formed by connecting a sampling interface, a quantitative loop group and a tail gas interface together through the reversing device, so that the tested samples are synchronously injected into all quantitative loop groups through the gas feeding path; when the tested samples are analyzed, the tested samples in the quantitative loop group in each sampling gas path are injected into the chromatographic column through the carrier gas interface to be analyzed. By utilizing the sampling system and the processing method, the simultaneity and the precision in sampling of the tested samples are ensured, the problem of artificial interface factors in artificial sampling or respective sampling in two ways is avoided, and the precision and the reliability of a gas chromatograph used for detecting data of the tested samples are further improved.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST

Hardware automatic test tool and test method based on Internet of Things

The invention discloses a hardware automatic test tool and test method based on the Internet of Things and belongs to the technical field of automatic testing. The test tool comprises a to-be-tested terminal device testing device, a serial port debugging tool and a cloud data acquisition management system; the to-be-tested terminal device testing device uploads physical information, a function testing process and a testing result of a to-be-tested terminal device to a serial port debugging tool; the serial port debugging tool is used for receiving serial port physical information of the to-be-tested terminal device and test options for each function, and comprises communication protocol encapsulation and communication protocol analysis; the cloud data acquisition management system is usedfor managing device information, receiving instrument data acquired by the to-be-tested terminal device and analyzing the device data by applying data acquisition driving software. According to the test tool disclosed in the invention, the consistency of test result standards can be ensured, quality testing efficiency is greatly improved, and human resources and time cost are greatly reduced.
Owner:CHINA CONSTR EIGHTH ENG DIV

Displacement detection method for valve element of linear electromagnetic valve

The invention provides a displacement detection method for a valve element of a linear electromagnetic valve. The method involves the linear electromagnetic valve, a control unit and a monocular microscope camera. The displacement detection method includes the steps that firstly, the linear electromagnetic valve is placed below the monocular microscope camera and connected with the control unit; secondly, a coil of the linear electromagnetic valve is powered on, and the valve element is correspondingly displaced; the monocular microscope camera conducts real-time video acquisition on the end face of the valve element, and video frames are extracted from video streams to serve as objects to be researched; thirdly, noise processing is conducted on each acquired video frame; fourthly, the image definition values F of the video frames, obtained after noise processing, of the end face of the valve element of the linear electromagnetic valve are acquired through an image definition evaluation function, wherein F0 is used for representing an original image definition value; fifthly, displacement values corresponding to the image definition values are acquired through a displacement calculation formula, and therefore a data set formed by one power-on voltage and the displacement values is acquired. By the adoption of the method, the detection efficiency and the accuracy of the linear electromagnetic valve can be improved.
Owner:宁波太平洋电控系统有限公司

Side vertical type double-station square milling machine tool for electromagnetic pure iron material

The invention relates to the technical field of electromagnet core tube machining, in particular to a side vertical type double-station square milling machine tool for an electromagnetic pure iron material. The side vertical type double-station square milling machine tool comprises a platform, a vertical type fastening mechanism, horizontal type milling mechanisms, a scrap iron collecting mechanism, a feeding assembly, a feeding mechanism and an air blowing mechanism; the vertical fastening mechanism and the feeding mechanism are arranged on the platform at intervals; a scrap iron collecting hole is formed in the platform between the vertical fastening mechanism and the feeding mechanism; the scrap iron collecting mechanism is arranged on the side, close to the ground, of the scrap iron collecting hole; the horizontal type milling mechanisms are arranged on the two sides of the vertical fastening mechanism and the two sides of the feeding mechanism correspondingly, and the two horizontal milling mechanisms are adjacently arranged on the two sides of the scrap iron collecting hole; the feeding assembly is arranged on one side of the platform; and the air blowing mechanism is arranged on the side, close to the scrap iron collecting hole, of the vertical fastening mechanism. Interference of scrap iron on the quality can be effectively prevented, the product quality is guaranteed,and the working efficiency is improved.
Owner:安阳凯地磁力科技股份有限公司

Method for recognizing signal mode of cold-rolled strip

Provided is a method for recognizing a signal mode of a cold-rolled strip. The method comprises the following steps that the plate shape measurement values, measured by a plate shape instrument on line, of all measurement sections in the width direction of the cold-rolled strip are acquired, and the plate shape values of all the measurement sections are obtained; original data output by the plate shape instrument are input into a n-layer neural network and used as a feature extraction layer, and the network is made to extract the feature automatically through training for eliminating the trace of artificial use; and plate shape recognition is conducted through the improved quantum neural network based on a genetic algorithm. According to the method, the improved quantum neural network of a multi-layer excitation function optimized through the genetic algorithm is applied to a plate shape mode recognition technology, the training efficiency of the network is improved remarkably, and the problems that the precision and the real-time performance are not ideal, the network structure is complex, the training time is long, and the stability and robustness are poor by means of a traditional plate shape recognition method are solved effectively.
Owner:YANSHAN UNIV

Automatic nucleic acid extractor

The invention provides an automatic nucleic acid extractor. The automatic nucleic acid extractor comprises a base, an operation platform installed on the base, an instrument main body, a negative pressure device and a circuit board. The instrument main body comprises a reagent tank, a pipe rack, an X shaft, a Y shaft, a Z shaft, a 8-channel pipetting head assembly, a microsample injection device,a tip rack, multiple motors and a nucleic acid extraction and reaction device. The nucleic acid extractor has high nucleic acid extraction efficiency, is easy to operate and has high running accuracyand good stability.
Owner:SHANGHAI REPODX BIOTECH CO LTD

Digital detection and inspection system for coal

The invention discloses a digital detection and inspection system for coal. The digital detection and inspection system comprises a service management system, control equipment and a service executionsystem, the service management system comprises service management equipment; the service execution system comprises a plurality of task operation equipment related to a coal sample; the service management equipment is used for receiving sampling, sample preparation, assay, sample transmission and storage tasks, transmitting the tasks to the control equipment, and analyzing monitoring data related to the tasks and returned by the control equipment to obtain an analysis result; the control equipment controls the task operation equipment to execute the task, monitors the working state of the task operation equipment in real time in the execution process of each task, collects monitoring data related to the task, and transmits the collected monitoring data to the service management equipment; and the task operation equipment is used for executing the task issued by the control equipment. According to the invention, the intelligent degree of coal detection can be improved.
Owner:英飞智信(北京)科技有限公司

Power grid accident pre-arranged plan generation method

The invention discloses a power grid accident pre-arranged plan generation method. The method comprises the steps of obtaining the target power grid accident data, wherein the target power grid accident data points to a to-be-processed power grid accident; based on a neural network classification model of a radial basis function, determining an accident type of the to-be-processed power grid accident according to the target power grid accident data; determining the accident level of the power grid accident to be processed according to the target power grid accident data based on a neural network grading model of a probability sequence model; and determining the target pre-arranged plan data of the power grid accident to be processed in a power grid accident pre-arranged plan library according to the accident type and the accident grade. According to the invention, the accident handling pre-arranged plan can be automatically generated according to the power grid accident pre-arranged plan library, so that the accident handling efficiency can be improved, the artificial interference can be eliminated, and the labor cost can be saved.
Owner:山西金晖隆开关股份有限公司

Gas-liquid-liquid three-phase separator for testing apparatus

The invention discloses a gas-liquid-liquid three-phase separator for a testing apparatus, which is characterized by comprising a barrel, wherein the barrel is in sealed connection with an inner sleeve with the upper end arranged in the barrel, an opening is formed in the upper part of the inner sleeve, a first orifice and a second orifice are formed in the lower part of the inner sleeve, a third orifice and a fourth orifice are formed in the lower part of the barrel, a feeding hole is formed in the middle of the barrel, a gas phase outlet and a fifth orifice are formed in the upper part of the barrel. The separator is simple in structure, low in cost and high in efficiency, not only can realize the fact that the testing apparatus simulates the industrial continuous control process and improve the automation level, but also can eliminate man-made interference of manual sampling on the system, reduce unsteady factor in test; furthermore, by simplification, the separator can be used as a liquid-liquid separator, thus having great application value in scientific researches of catalyst development, new process route exploration and the like in the fields of petroleum refining, petrochemical engineering and environment protection.
Owner:迈瑞尔实验设备(上海)有限公司

A method for visually positioning a screen of a mobile device

The invention provides a method for visually positioning a screen of a mobile device, comprising the following steps: S1, displaying a pure color on a screen of the mobile device in full screen, wherein the pure color is different from the color of a part outside the screen of the mobile device; S2, acquiring an image at the mobile device; S3, carrying out bilateral filtering on that image; S4, performing Harris corner detection on the bilateral filtered image; S5, dilating the image after Harris corner detection; S6, thresholding the expanded image; S7, performing connected region processingon the thresholded image to obtain the center of gravity of the Harris corner point. The invention has the beneficial effects that the four vertex coordinates of the screen of the mobile device are obtained by using the visual positioning, artificial interference is eliminated, precision is ensured, the precision of the subsequent manipulator clicking is ensured, the purpose of accurate testing isachieved, the precision is high, the efficiency is high, and the automation production is facilitated.
Owner:成都智慧海派科技有限公司

Human anti-thrombin III heparin combination ratio detection method

ActiveCN103743837ASimple methodEliminate immunoassay workComponent separationPhosphoric acidBuffer solution
The invention discloses a human anti-thrombin III heparin combination ratio detection method. The detection method comprises the steps of using an efficient size exclusion chromatography column and a sodium salt buffer solution with mobile phases comprising isopropanol and phosphoric acid at pH of 6.0-7.5 to calculate a combination ratio between the human anti-thrombin III and the heparin through a ratio of an area of characteristic peak and a corresponding standard curve; adding inactivated human anti-thrombin III into a standard product of the human anti-thrombin III according to a ratio, and manufacturing a standard curve according to change of the ratio of the area of characteristic peak. According to the method, the human factors are excluded; the accuracy and the precision of results are high, the experiment operation steps are simple, the detection time can be shortened, the experiment cost is reduced and the working efficiency of detectors is greatly improved.
Owner:SHANDONG TAIBANG BIOLOGICAL PROD CO LTD

Automatic sensitivity testing device of water flow indicator for fire protection

ActiveCN105737948AEliminate human interferenceImprove inspection quality and efficiencyTesting/calibration apparatusPipingSensitivity testing
The invention relates to the field of fire protection facility detection, in particular to an automatic sensitivity testing device of a water flow indicator for fire protection. The automatic sensitivity testing device comprises a machine frame, a PLC control system and a hydraulic press. A water outlet pipe, a water outlet connector, a first electric adjusting electromagnetic valve, a first flow measuring pipe and a first fixing ring are sequentially connected and arranged on the machine frame, and a second fixing ring, a second flow measuring pipe, a second fixing ring stretchable pipe, a fixing pipe, a connecting pipe, an electromagnetic valve, a water inlet pipe and the hydraulic press are sequentially connected and arranged on the machine frame. A pressure sensor is arranged on the hydraulic press. Electric adjusting electromagnetic valves are installed on the two flow measuring pipes. All the electromagnetic valves, flow sensors, a pneumatic electromagnetic valve set and the pressure sensor are connected with the PLC control system. The PLC control system is connected with a camera. According to the automatic sensitivity testing device, test installation and testing process and conclusion determination are automatically completed, man-made interference is eliminated, the detection quality and efficiency are improved, and automatic detection is achieved.
Owner:山东正昊智能工程有限公司

Cash cabinet cluster with self-checking function, and self-checking method

The application discloses a cash cabinet cluster with self-checking function, and a self-checking method. In a machine for cash operation, multiple cash cabinets and a checking cabinet are serially connected by utilizing a paper currency channel, and the paper currency channel is further connected with at least one counter, the paper currency in various cash cabinet is born by the paper currency channel, the paper currency is converted between the cash cabinet and the checking cabinet and is counted by a counter in the conversion process, so that the automatic checking work of the paper currency in each cash cabinet can be automatically accomplished. Through the cash cabinet cluster with self-checking function and the self-checking method disclosed by the application, the daily labor intensity of a bank teller can be greatly relieved, the artificial interference is excluded, and the reliability of the checking result is higher.
Owner:KUNSHAN GUAO ELECTRONICS MACHINERY

Indoor fire hydrant pressure loss automatic testing device

The invention relates to the fire-fighting facility field and particularly relates to an indoor fire hydrant pressure loss automatic testing device. The indoor fire hydrant pressure loss automatic testing device comprises a PLC control system, a circulation water tank, a pressure water pump and a tee joint; the PLC control system is connected to a camera; the water tank is provided with a water tank solenoid valve; the pressure water pump is provided with a water pressure sensor, an inlet valve and a pressure stabilization valve; the pressure stabilization valve is connected to the tee joint which is connected to an U-shaped tube; the U-shaped tube is connected to a cut-off solenoid valve and then is connected to a straight tube; the straight tube is connected to a upright tube; the upright tube is connected to the joint tee and is provided with a throttle solenoid valve; the straight tube is provided with a flowmeter; the straight tube is provided with a front pressure sensor and a pressure difference transformer; and the pressure difference sensor is connected to a upright tube; one end of the uprighttube is connected to a second cut-off solenoid valve and is connected to the fire-fighting water gun; and the upright tube is provided with a rear pressure sensor The indoor fire hydrant pressure loss automatic testing device enables the test process and conclusion determination to automatically finish, eliminates the man-made interference, saves time and labor, improves the detection quality and efficiency and realizes the detection automation.
Owner:山东鼎梁消防科技有限公司

Integrated device based on multiple detection sites and analysis method

The invention provides an integrated device based on multiple detection sites and an analysis method. The integrated device comprises a body; a diluent cavity is formed around the outer edge of a fixed part; a first quantification cavity is formed on the periphery of the diluent cavity; a sample cavity is formed on the periphery of the diluent cavity; a second quantification cavity is formed on the periphery of the sample cavity and is communicated with the sample cavity; a first storage cavity is formed on the periphery of the second quantification cavity, and is communicated with the secondquantification cavity; a second storage cavity is communicated with a second overflow port; a third storage cavity is communicated with a first overflow port; each of first to third passages has a choke flow structure; a mixing cavity is formed on the periphery of the first quantification cavity, and is communication with a distribution cavity by the third passage; the distribution cavity is formed on the periphery of the mixing cavity, and is communicated with a plurality of detection cavities by passages; the plurality of detection cavities are formed on the periphery of the distribution cavity. The integrated device has the advantages of simple structure, complete functions, convenience for operation and the like.
Owner:武汉芯生生物科技有限公司

Lung function monitoring method, system and device and storage medium

The invention provides a lung function monitoring method, system and device and a storage medium, which are used for simultaneously monitoring lung functions of a plurality of users. The method comprises the following steps of: collecting a plurality of data streams corresponding to the lung functions of the plurality of users through a plurality of antennas; extracting CSI data according to the plurality of data streams, and processing the CSI data to obtain a plurality of breathing signals and an expiration stage of each breathing signal; according to the breathing signals and the preset azimuth information of each user, enabling the breathing signals to correspond to the users one by one; and according to the expiration stage of the breathing signal, processing to obtain a lung function monitoring result of each user. According to the lung function monitoring method, system and device and the storage medium provided by the invention, lung function indexes of users are collected, human interference is eliminated, and early symptoms of respiratory diseases can be found in time; lung function monitoring of a plurality of users can be carried out at the same time, and lung function monitoring results correspond to the users one by one; and the health standards of all users can be distinguished, so that the monitoring result is more accurate.
Owner:HEFEI UNIV OF TECH

Metal bridge transducer element and manufacturing method thereof

The invention relates to a metal bridge electric explosion device, and provides a metal bridge energy conversion component and a manufacturing method of the metal bridge energy conversion component. The metal bridge energy conversion component comprises a substrate, a metal bridge layer, a fly die layer and an accelerating chamber layer. The metal bridge layer is formed on the surface of the substrate and made of metal materials in an additive mode through an additive manufacturing technology. The fly die layer is formed on the partial region of the metal bridge layer and the partial region of the substrate and made of non-metal materials in an additive mode through the additive manufacturing technology. The accelerating chamber layer is formed on the fly die layer and made of non-metal materials in an additive mode through the additive manufacturing technology, and a small hole is formed in the center area of the accelerating chamber layer. The region, without being covered with non-metal materials, of the metal bridge layer serves as an electrode of the metal bridge energy conversion component. According to the technical scheme, the structures of various layers of the metal bridge energy conversion component are formed through the additive technology, layered structures of core components of the metal bridge electric explosion device are formed in a sequential forming mode, and therefore man-made interference in the manufacturing process is eliminated, and accurate alignment of various components and close attachment of various layers are guaranteed.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS

An intelligent system for warehouse environment management and control

The invention discloses an intellectualized system for controlling warehouse environment. The intellectualized system for controlling the warehouse environment comprises an image monitoring sub system, a security and protection sub system, a smoke detection sub system, an illumination sub system, a temperature and humidity regulation sub system and a multimedia centralized monitoring platform, the multimedia centralized monitoring platform is respectively connected with the image monitoring sub system, the security and protection sub system, the smoke detection sub system, the illumination sub system and the temperature and humidity regulation sub system and is used for monitoring, regulating and controlling the working conditions of the sub systems in a centralized mode. Therefore, the intellectualized system for controlling the warehouse environment can achieve centralized intellectualized monitoring of real time monitoring, security and protection, fire prevention, light ray control and temperature and humidity control for a warehouse, time and labor are saved, management efficiency is improved, man-made interference is eliminated in the monitoring process, the error in tested humidity and temperature is reduced, and the result is accurate.
Owner:STATE GRID CORP OF CHINA +2

A kind of automobile seat hardness in-the-loop testing equipment and testing method

ActiveCN112414650BMeet the requirements of hardness testingThe test is objective and accurateMaterial strength using tensile/compressive forcesInvestigating material hardnessCar seatControl theory
The invention provides a vehicle seat hardness-in-the-loop testing equipment and method, comprising a mobile main support, a hardness testing module and a mobile sub-support; the mobile main support comprises a column, a wheel set at the bottom of the column, one end of which is connected with The beam connected with the column; the hardness test module is connected with the beam and can move along the length of the beam, and the hardness test module includes a sliding table assembly, a force sensor connected with the lifting end of the sliding table assembly, and a pressure plate connected with the force sensor; The mobile sub-support includes a sub-column, a sub-wheel set at the bottom of the sub-column, and a beam limiter located on the sub-column. The vehicle seat hardness in-ring test device of the present invention can perform hardness test under real vehicle conditions, does not damage the entire seat surface, is simple to operate, can test the seat hardness objectively and accurately, and the test results are consistent with subjective evaluation.
Owner:CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD +1

Master data mapping processing method, device, computer equipment and storage medium

The present application discloses a master data mapping processing method, device, computer equipment and storage medium, including: acquiring target data to be mapped, wherein the target data includes a first attribute file; calculating the first attribute file and preset reference data The first similarity value of the second attribute file of the a first similarity value; generating a total similarity value representing the degree of coincidence between the target data and the reference data according to the plurality of first similarity values; performing mapping processing on the target data according to the total similarity value. In the present application, the similarity calculation is performed for different attribute files respectively, and then the total similarity is calculated, so that the obtained total similarity value makes the similarity calculation more objective, eliminates human interference, and the mapping method is more convenient and fast.
Owner:望海康信(北京)科技股份公司

Sow oestrus management method

The invention relates to the technical field of sow management. In order to solve the problem that in the prior art, a body surface temperature measurement mode is adopted to identify whether sows are in oestrus or not, so that the accuracy of an identification result is low, the sow oestrus management method comprises the following steps that S1, the body surface temperature and the night exercise amount are monitored, and the basic body temperature and the basic night exercise amount are obtained according to the body surface temperature and the night exercise amount; s2, starting from the predicted estrus day, according to the monitored body surface temperature and the night exercise amount, the periodic average body temperature and the periodic night exercise amount are obtained; s3, judging whether the body temperature continuously rises and a decline inflection point appears or not, and whether the amount of exercise at night rises or not; and S4, when it is judged that the body surface temperature continuously rises, a declining inflection point appears, and meanwhile, the night exercise amount rises, whether the current period is in a predicted estrus period or not is judged, if yes, estrus early warning is sent, and if not, manual intervention early warning is sent.
Owner:重庆市六九畜牧科技股份有限公司 +1

Human anti-thrombin III heparin combination ratio detection method

ActiveCN103743837BSimple methodEliminate immunoassay workComponent separationPhosphoric acidBuffer solution
The invention discloses a human anti-thrombin III heparin combination ratio detection method. The detection method comprises the steps of using an efficient size exclusion chromatography column and a sodium salt buffer solution with mobile phases comprising isopropanol and phosphoric acid at pH of 6.0-7.5 to calculate a combination ratio between the human anti-thrombin III and the heparin through a ratio of an area of characteristic peak and a corresponding standard curve; adding inactivated human anti-thrombin III into a standard product of the human anti-thrombin III according to a ratio, and manufacturing a standard curve according to change of the ratio of the area of characteristic peak. According to the method, the human factors are excluded; the accuracy and the precision of results are high, the experiment operation steps are simple, the detection time can be shortened, the experiment cost is reduced and the working efficiency of detectors is greatly improved.
Owner:SHANDONG TAIBANG BIOLOGICAL PROD CO LTD

Attribute network embedding and parameter-free clustering-based Bilibili user community discovery method

The invention relates to an attribute network embedding and parameter-free clustering-based Bilibili user community discovery method, which comprises the following steps of: constructing an attributenetwork G according to the existing Bilibili user data, converting an adjacent matrix and an attribute matrix into an embedding vector H by utilizing an attribute network representation framework, operating a k-means algorithm on the H, calculating the minimum intra-group variance within T times under different k values, calculating the maximum curvature index and the second maximum curvature index with the highest occurrence frequency in I times to obtain corresponding k values ka and kb, respectively operating k-means algorithms with IT secondary community number ka and community number kb,calculating the maximum modularity Qa and Qb of the clustering result, obtaining the k value corresponding to the larger value in Qa and Qb as the community division number, and finally realizing community discovery by using the k-means clustering algorithm. According to the invention, the parameter-free algorithm is used to replace manual assignment of the number of communities, human factor interference is reduced, and the accuracy and stability of community discovery are improved.
Owner:ZHEJIANG UNIV OF TECH

Public security performance assessment system

PendingCN109840650ARealize the informationization of assessmentRealize scientific assessmentResourcesEngineeringAppraisals performance
The invention relates to the field of assessment systems, in particular to a public security performance assessment system, which comprises a first unit, a second unit, a third unit and a fourth unit,The second unit is used for collecting attendance information of the jurisdiction ranges of team departments in all departments of the city straight and examining the first unit; The third unit is used for collecting the attendance information of the jurisdiction range of each department team department in the city and examining the second unit; The fourth unit is used for collecting the attendance information of the jurisdiction ranges of all departments of the city straight and examining the third unit; And the fifth unit is used for collecting the attendance information of the jurisdictionrange of the city bureau and examining the fourth unit. According to the invention, the assessment is transparent, can be dynamic and timely, and is convenient to check.
Owner:西安尚博信息技术有限公司
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