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95326results about How to "Practical" patented technology

Special unmanned helicopter system suitable for routing inspection on power grid in mountain area

ActiveCN103078673AReduce grid failure rateReduce grid operating costsRadio transmissionTerrainGeographic information system
The invention discloses a special unmanned helicopter system suitable for routing inspection on a power grid in a mountain area, which comprises a sensor network, an information transmission network and an information processing center. According to the special unmanned helicopter system suitable for routing inspection on the power grid in the mountain area, which is disclosed by the invention, in the complex terrain environment of the mountain area and under the complex weather conditions of the mountain area, a medium-sized special unmanned helicopter system suitable for routing inspection on the power grid in the mountain area and an application method thereof can be provided. According to the invention, effective fusion of cutting-edge advanced technologies such as an unmanned aerial vehicle platform technology, a data chain communication technology, a GIS (Geographic Information System) technology, a visible light / infrared / ultraviolet high definition shooting, storage and transmission technology, a distance measuring and sensing technology and an image diagnostic evaluation technology is sufficiently utilized to implement daily routing inspection on a power transmission line.
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD +3

Method and apparatus for computing lithium ion batteries residual electric energy

InactiveCN101303397ACorrect current integration errorImprove accuracyElectrical testingElectrical batteryElectric energy
The invention provides a computing method of surplus energy of a lithium-ion battery and a device thereof. The method makes use of the combination method of the open circuit voltage of a lithium-ion battery pack and electric energy integral to compute the energy of charge and discharge, and according to the size of the open circuit voltage and the charge and discharge current, the DC impedance of the lithium-ion is computed in real time, and then the parameters such as DC impedance, charge and discharge currents, and the like, are used for determining the corresponding open circuit voltage of the available surplus energy of the lithium-ion battery pack under present circumstances when the discharge reaches a final voltage; on the basis of the present open circuit voltage, the actual surplus energy of the lithium-ion battery pack is computed when the discharge reaches the final voltage at last, the battery surplus energy available is obtained by the largest surplus energy minus the surplus energy in discharge termination condition. The computing method of the invention is applicable to accurately estimating the surplus energy of the battery in various conditions and the usage characteristics of a power battery and has the advantages of high accuracy, comparatively high practicability and high popularization value.
Owner:HEBEI UNIV OF TECH

Transplanting method of big camphor trees

A transplanting method of big camphor trees comprises selection of the big camphor trees, transplanting, transplanting transportation of trees, planting and planting management. Particularly, the angle of a planting sunny side cannot be deviated by over 10 degrees, root irrigation is performed by using ABT rooting powder, microorganism fertilizer, bactericide liquid chemical and the like which are used in backfill soil according to a fixed proportion, and 1-naphthylacetic acid alcohol water solution of 100-200ppm is used for irrigation after planting of the big camphor trees. The special technical processing of camphor transplanting is that 1-naphthylacetic acid auxin of 0.01-0.03% is added to used mud, the theory of a big wiping head and a big soil ball is adopted, 1-naphthylacetic acid rooting powder is added to the root portions during transplanting, leaves are picked instantly after planting, a blade surface agent is sprayed to new leaves, and originality is provided in the overwintering and antifreezing aspects. By means of the transplanting method, transplanting survival rate of the camphor trees with the tree age below 20 years is over 99%, and transplanting survival rate of the camphor trees with the tree age over 20 years is over 95%. The transplanting method of the big camphor trees can be suitable for transplanting of big trees and old trees under the conditions of other different altitudes, longitudes and latitudes, climate and the like.
Owner:宋慎汉 +1

Horizontal well directional sand blasting perforation and fracturing integral tool pipe column and construction method thereof

The invention relates to a horizontal well directional sand blasting perforation and fracturing integral tool pipe column and a construction method thereof. The tool pipe column comprises a safe joint, a first centralizer, a first rotating joint, a hydraulic sand blasting device, a second rotating joint, a second centralizer, a packer, a coupling positioning device and a guiding shoe, wherein the safe joint is arranged at the left end of the tool pipe column; the guiding shoe is arranged at the right end of the tool pipe column; the left end of the safe joint is connected with an oil pipe; the first centralizer, the first rotating joint, the hydraulic sand blasting device, the second rotating joint, the second centralizer, the packer and the coupling positioning device are sequentially arranged between the right end of the safe joint and the guiding shoe from left to right. The horizontal well directional sand blasting perforation and fracturing integral tool pipe column and the construction method provided by the invention have the advantages that the structure of the tool pipe column is simple; the directional san blasting perforation can be realized; the stratum energy is released to the greatest degree; the problem of shot hole compression zone of gunpowder perforation can be solved.
Owner:JEREH ENERGY SERVICES

Method and system for identifying moving objects

The invention discloses a method and a system for identifying moving objects. The method for identifying the moving objects comprises the following steps: detecting the objects, namely extracting interesting areas from a video image; tracking the objects, namely establishing the association and consistency between the extracted areas between the frames to form the objects; and classifying the objects, namely classifying the areas and the objects by a classification method, wherein the classification method comprises an area classification method and an object classification method. The method and the system realize detection, tracking and classification of the moving objects, and solve the problems of image jitter, brightness change, shadow, leaf swing and the like.
Owner:NETPOSA TECH

Internet-of-things based medical management monitoring system

ActiveCN102184312APhysical condition real-time monitoringPhysical Health ManagementDiagnostic recording/measuringSensorsDiseaseTerminal equipment
The invention discloses an internet-of-things based medical management monitoring system. The system comprises user terminal equipment worn on a patient and a server for realizing management monitoring, wherein the user terminal equipment is communicated with the server through a wireless network; the user terminal equipment comprises a physiological parameter sensor for detecting a physiologicalparameter of the patient, an input module for inputting disease state data of the patient and a first wireless transmitting and receiving module for transmitting the physiological parameter or the disease state data to the server and receiving a diagnosis instruction of the server; and the server comprises a second wireless transmitting and receiving module for receiving the data transmitted by the user terminal equipment and transmitting the diagnosis instruction to the user terminal equipment, a remote diagnosis module for remote diagnosis of a doctor and an alarm processing module for comparing according to the detected physiological parameter of the patient and a set physiological parameter threshold and giving out an alarm. By using the system, the physiological condition of the patient can be monitored in real time; and the system has high intelligence and high practicability.
Owner:SCHOOL OF OPHTHALMOLOGY & OPTOMETRY WENZHOU MEDICAL COLLEGE

Method and device for automatically distributing online customer service executives to conduct customer service

The invention relates to a method and a device for automatically distributing online customer service executives to conduct customer service. The method includes that a service queue formed by the customer service executives is built; a client consultation request is sent to a server; the server transmits characteristic information of clients, the consultation request and characteristic information of the consultation request to a routing selection unit of the server; the server builds at least one consultation queue formed by the clients; the server distributes the consultation to the corresponding service queue according to a preset distribution strategy and then sequentially and automatically distributes the clients of the consultation queue to specific customer service executives of the service queue, and a conversation connection request is sent to a client side instant communication terminal through the server; the client side instant communication terminal receives and responds to the conservation connection request, and builds direct conversation connection with the customer service executives to enable the customer service executives to conduct client consultation service; after the consultation service is finished, conservation connection between the clients and the customer executives is broken, then the server recalculates customer service executive weights and rearranges the service queue.
Owner:成都天润金铠甲科技有限公司

Annular thin-wall article clamping device and using method thereof

The invention provides an annular thin-wall article clamping device and a using method of the device. The clamping device comprises an annular chassis; the chassis is provided with a radial regulation mechanism of a locating workpiece; the radial regulation mechanism is divided into an inner radial regulation mechanism and an outer radial mechanism; two radial regulation mechanisms position workpiece respectively from the inner side or the outer side of the workpiece; the chassis is respectively provided with track-directed sliding grooves for the two radial adjustment mechanisms; the inner end of the sliding groove of the inner radial regulation mechanism is provided with a stopping block; the outer end of the sliding groove of the outer radial regulation mechanism is provided with the stopping block; the sliding grooves of the two groups of radial regulation mechanisms are disposed at intervals; one of the two groups of radial regulation mechanisms is provided with an axial compacting mechanism for fixing the workpiece; and the axial compacting mechanism is displaced alternatively between the two groups of radial regulation mechanisms when turning the workpiece. The clamping device can realize the processing of two side walls of the workpiece by clamping the workpiece once, and is fit for the clamping of the workpieces with different specifications. The device has the characteristics of high use rate, strong practical applicability, good generality, time saving and labor saving, light labor intensity, high production efficiency and the like.
Owner:DONGFANG TURBINE CO LTD

Ecological scale breeding method of green shell egg laying hens

The invention discloses an ecological scale breeding method of green shell egg laying hens. The method mainly includes the following steps: (1) selecting breeding hens; (2) stocking in a rotational grazing mode in woodland and meadow; (3) selecting hatching eggs; (4) incubating the hatching eggs with an incubator; (5) managing broods of the green shell egg laying hens; (6) managing feeding of the green shell egg laying hens; and (7) preventing epidemic diseases of the green shell egg laying hens. The method is strong in systematicness, changes traditional breeding technology of the green shell egg laying hens, combines with effective breeding measures, improves quality of the breeding hens and the hatching eggs and production capacity of the green shell egg laying hens, increases egg weight and egg yield, and lowers morbidity and mortality rates of the green shell egg laying hens.
Owner:铜仁市万山区畜禽品种改良站

Systematic calibration method of welding robot guided by line structured light vision sensor

The invention relates to a systematic calibration method of a welding robot guided by a line structured light vision sensor, which comprises the following steps: firstly, controlling a mechanical arm to change pose, obtaining a round target image through a camera, accomplishing the matching of the round target image and a world coordinate, and then obtaining an internal parameter matrix and an external parameter matrix RT of the camera; secondly, solving a line equation of a line laser bar by Hough transformation, and using the external parameter matrix RT obtained in the first step to obtain a plane equation of the plane of the line laser bar under a coordinate system of the camera; thirdly, calculating to obtain a transformation matrix of a tail end coordinate system of the mechanical arm and a base coordinate system of the mechanical arm by utilizing a quaternion method; and fourthly, calculating a coordinate value of a tail end point of a welding workpiece under the coordinate of the mechanical arm, and then calculating an offset value of the workpiece in the pose combined with the pose of the mechanical arm. The systematic calibration method of the welding robot guided by the line structured light vision sensor is flexible, simple and fast, and is high in precision and generality, good in stability and timeliness and small in calculation amount.
Owner:JIANGNAN UNIV +1

Method for dynamically monitoring health status of wind turbine gearbox in real time

InactiveCN102768115AAvoid complexityAvoiding the Disadvantages of Linear DistortionMachine gearing/transmission testingDistortionCondition monitoring
The invention discloses a method for dynamically monitoring the health status of a wind turbine gearbox in real time in the technical field of status monitoring and fault diagnosis of rotating machinery. The method comprises the following steps: acquiring a vibration signal and operating and monitoring data of the gearbox; analyzing the vibration signal of the gearbox to obtain the time domain feature and frequency domain feature of the vibration signal of the gearbox and the envelope spectrum feature of an envelope signal; establishing an operation condition space for the gearbox and dividing the operation condition space of the gearbox into a predetermined number of operation condition sub-spaces of the gearbox according to the operating data of the gearbox; generating a health status feature library for each component of the gearbox from an obtained operation monitoring historical data subset; establishing a health status evaluation model to obtain a health status real-time evaluation model under each operation condition and the health index of each component; and finally, calculating the health index of the gearbox. With the method, the health status evaluation model is established, the complexity of determining a monitoring threshold under a complex dynamic operation condition is avoided, and the defect of linear distortion caused by the simple increment of multi-feature parameters is overcome.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Multi-rotor unmanned aerial vehicle for fast surveying and surveying method of multi-rotor unmanned aerial vehicle

InactiveCN104386249APrecise positioningAccurate flight attitudeAircraft componentsRotocraftAviationCamera lens
The invention discloses a multi-rotor unmanned aerial vehicle for fast surveying and a surveying method of the multi-rotor unmanned aerial vehicle, and belongs to the technical field of aviation surveying. The multi-rotor unmanned aerial vehicle comprises a rack, flight lifting mechanisms, a cloud deck mechanism and a control mechanism, wherein four plane arms extend out from the rack along a plane body, the lower part of the plane body is provided with foot stools, the plane arms and the foot stools are of foldable structures; and the flight lifting mechanisms are arranged at tail ends of the four plane arms, the cloud deck mechanism is mounted at the bottom of the unmanned aerial vehicle body through a mounting rod; the cloud deck mechanism is provided with a camera and is used for regulating an optical axis of the camera to be always perpendicular to the ground; and the control mechanism is used for controlling the unmanned aerial vehicle to fly to the appointed height and regulating the overturn of the cloud deck mechanism. The surveying method disclosed by the invention can be used for determining the relation between the shooting height and the imaging proportion by analyzing camera lens parameters, and then setting the flight line of the unmanned aerial vehicle. Through the adoption of the unmanned aerial vehicle, the surveying result can be fast obtained, and the surveying precision and efficiency are high.
Owner:安徽靓马信息科技股份有限公司

Vehicle information remote monitoring and fault diagnosis system

ActiveCN108469802ARemind and correct irregular driving behaviorReduce failureTransmission systemsRegistering/indicating working of vehiclesHabitEngineering
The invention discloses a vehicle information remote monitoring and fault diagnosis system. The system comprises an intelligent vehicle-mounted terminal which is installed on a vehicle and is used foracquiring vehicle fault information and real-time state information, a cloud server platform and an intelligent mobile terminal. The system is used for instantly analyzing and processing a vehicle fault, and graphically displaying the various kinds of data of a vehicle on the intelligent mobile terminal. The invention also provides a vehicle remote diagnosis method. When the vehicle has a fault,the vehicle-mounted terminal can automatically transmit a fault code to cloud, a cloud management platform analyzes the fault code and matches a corresponding solution scheme to the user vehicle-mounted terminal, nearby selectable repair manufacturers are pushed to a user via GPS, and the user can check the real-time operation state information of the vehicle through the intelligent mobile terminal APP. Through the intelligent mobile terminal, a driving habit and vehicle fault hidden troubles are checked. A driver can correct a bad driving habit through the mobile terminal and potential safetyhazards of the vehicle are reduced.
Owner:WUHAN HUAWEI SECIAL PURPOSE AUTOMOBILE DETECTION

Circular target circular center positioning method

The invention discloses a circle center locating method of a circular target, mainly relating to a great deal of target identification and target location. Firstly, rough circle center location is carried out to an image by using a simple contour centroid method, a key square region is extracted as a region of interest according to the information of a rough location circle center and a rough location radius, and pixel-level edge location is carried out to the circular target in the region of interest by a canny operator; then sub-pixel location is carried out to the circular target according to the geometric features and the gray information of the circle, therefore, a precise coordinate of sub-pixel edge points is obtained; after that, a curvature filtering method and an average filtering method are respectively used for filtering 'isolated points' and noise occurring in the sub-pixel edge points; finally, a least squares method is utilized to fit a circle to the filtered sub-pixel edge points so as to obtain the final circular center and radius. The method not only effectively improves the precision of circle center location, but also improves the robustness thereof, thus further improving the measurement precision of a measurement system and perfecting the stability of the measurement system.
Owner:南通欧特建材设备有限公司 +1

Human motion capture device

The invention relates to a human motion capture device which comprises motion measuring units, a motion parameter estimation unit, an initialization unit, a display estimation unit and an overall integration unit; the motion measuring units are attached on all the limbs of a human body and are used for measuring the motion data and the environmental data of all the limbs; the motion parameter estimation unit deducts the motion parameters and the environmental parameters of all the limbs, and when in deduction, a self-adaptive anti-interference three-dimensional angle estimation method is adopted to deduct the three-dimensional angle values of all the limbs; the initialization unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs, and deducting the initial operation parameters of the human body motion capture device; the displacement estimation unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs as well as the initial operation parameters of the human body motion capture device, and deducing the displacement of the human body relative to the ground; and the parameters and the displacement of the human body relative to the ground are finally integrated together by the overall integration unit, so that the position and the gesture of the overall motion of the human body are worked out and output.
Owner:GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS

Three-dimensional printer with replaceable nozzle

The invention discloses a three-dimensional printer with a replaceable nozzle. The three-dimensional printer comprises a three-dimensional adjusting mechanism, and the printing nozzle which performs three-dimensional printing under the adjustment of the three-dimensional adjusting mechanism, wherein the printing nozzle comprises a nozzle bottom plate, a nozzle thermal preservation sleeve which is fixed on the nozzle bottom plate and is provided with a printing through hole and a positioning notch, a material tube which is radially clamped on the nozzle bottom plate, and a linear stepping motor; the material tube is axially clamped in the positioning notch through a material tube pressing plate which is in sliding fit with the nozzle bottom plate; a piston presser used for pushing a piston in a first material tube is fixed at the output end of a lead screw of the motor. When materials in the material tube are used up or the materials are needed to be replaced, the printing nozzle is controlled to automatically replace the material tube, and a three-dimensional object consisting of multiple materials can be printed. The piston is driven to be extruded by adopting the linear stepping motor, thrust is high and can be accurately controlled, and the blockage of the nozzle is avoided. According to the printer, liquid foods and multiple liquid materials such as gel and ceramic powder can be printed.
Owner:ZHEJIANG UNIV

Universal circuit breaker mechanical fault diagnosis method based on feature fusion of vibration and sound signals

The invention provides a universal circuit breaker mechanical fault diagnosis method based on feature fusion of vibration and sound signals. The method includes steps of 1, collecting machine vibration signals and machine sound signals during an engaging and disengaging process of a universal circuit breaker; 2, adopting an improved wavelet packet threshold value denoising algorithm for denoising; 3, adopting a complementary total average empirical mode decomposition algorithm for extracting a plurality of solid mode function components reflecting state information of engagement and disengagement actions of the circuit breaker from the denoising signals; 4, determining the number Z of the solid mode function components; 5, calculating the energy ratio, the sample ratio and the power spectrum entropy as three types of features; 6, adopting a combination core principal component analysis method for performing dimension reduction on a feature sample with unified three types of features of the vibration and the sound signals and obtaining M principle components; 7, establishing a related vector machine based sequence binary tree multiple classifier model.
Owner:HEBEI UNIV OF TECH
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