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44results about How to "Reduce huge workload" patented technology

Identification detection method for high speed railway overhead line supporting device parts

The invention discloses an identification detection method for high speed railway overhead line supporting device parts. The method comprises the following steps that: a training sample library of a high speed railway overhead line supporting device image is established, wherein the training sample library comprises the coordinate information of each part which is manually circumscribed in the image as a detection target, and a category; a deep convolutional neural network based on a Faster-RCNN (Region Convolutional Neural Network) algorithm is established; a training sample in the above training sample library is input into the established Faster-RCNN network to finish model training; and an image to be detected is input the trained model to obtain an identification detection result of the high speed railway overhead line supporting device parts. By use of the method, through the deep convolutional neural network of a candidate area, a target to be detected is subjected to feature learning and target classification, a huge workload for manually identifying the fault of the high speed railway overhead line supporting device parts is greatly reduced, the automatic analysis of a field image is realized, identification classification can be carried out for various overhead line suspension gear parts, and the method is high in identification accuracy.
Owner:SOUTHWEST JIAOTONG UNIV

System and method of actively capturing low altitude small unmanned aerial vehicle

The invention relates to a system and method of actively capturing a low altitude small unmanned aerial vehicle, wherein an unmanned aerial vehicle platform is used for realizing low altitude flight, and is provided with a binocular vision image acquisition unit and an ejection capturing unit. The binocular vision image acquisition unit is used for shooting binocular video image information in a monitoring space; a multi-information collection unit is used for obtaining the inclination angle information, height information and / or geographical position information of the unmanned aerial vehicle platform; an information processing decision unit is used for fusing the binocular vision image information and the inclination angle information, height information and / or geographical position information, and calculating and analyzing air vehicle detection identification, depth information obtaining, air vehicle tracking, and air vehicle capturing commands; the ejection capturing unit captures air vehicles according to the air vehicle capturing commands. The system and method improve the capability of actively capturing invasive small low altitude small unmanned aerial vehicles.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Method for identifying and detecting G-series high-speed train overhead contact line equipment supporting device cantilever connector fastener

InactiveCN107633267AImplement location extractionAutomate analysisCharacter and pattern recognitionEngineeringContact line
The invention discloses a method for identifying and detecting a G-series high-speed train overhead contact line equipment supporting device cantilever connector fastener. The method comprises the steps of firstly acquiring images of a G-series high-speed train overhead contact lien equipment supporting and suspending device; screening the acquired images, constructing a sample database of an overhead contact line equipment cantilever connector; then finishing positioning and extraction of various cantilever connector of the G-series high-speed train overhead contact line equipment by means ofa Faster R-CNN algorithm based on a convolutional neural network structure; further marking various kinds of fasteners on the extracted cantilever connector images, and constructing the sample databases of various kinds of fasteners; and finishing positioning and extraction of various kinds of fasteners of the G-series high-speed train overhead contact line equipment by means of the Faster R-CNNalgorithm based on the convolutional neural network structure. The method provided by the invention has advantages of reducing high workload in artificial identification, realizing automatic analysisfor the field image, performing identification and classification on the fasteners of various kinds of overhead contact line equipment supporting device cantilever connectors, and realizing relativelyhigh identification accuracy.
Owner:SOUTHWEST JIAOTONG UNIV

DHT expanded DNS mapping system and method for realizing DNS security

The invention discloses a distributed hash table (DHT) expanded domain name system (DNS) mapping system and a method for realizing DNS security. The mapping system comprises a host with a DNS resolver, a local and authorized DNS server and a DHT server in a DHT ring, wherein the DNS server and the DHT server serving as mapping servers manage mapping information from identity to position together and query mapping information for the host. The system synthesizes the advantages of the DNS and the DHT, absorbs a DNS tree structure, supports hierarchical query of the mapping information, is provided with reasonable commercial and trust models, and succeeds the advantages of DHT redundancy backup, strong robustness and the like; and the system can be realized on the basis of the conventional DNS mapping system so as to reduce a large amount of financial resource and manpower of network construction. A complete trust chain is established between the DHT ring and the upper DNS server, a transaction signature (TSIG) key is automatically distributed by using an ID management server positioned in an identity and position separation architecture, and the original DNS signature (DNSSEC) and TSIG security mechanisms of the DNS are ensured to be completely realized in the DHT expanded DNS mapping system.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Traffic scheduling method and system, and software defined network controller

The invention discloses a traffic scheduling method and system, and a software defined network controller. The method comprises the following steps: a traffic monitoring network management module monitors the exit traffic of a metropolitan area network, and inputs traffic monitoring data to the software defined network controller; the software defined network controller determines a traffic adjustment and optimization command according to the traffic monitoring data; the software defined network controller sends a border gateway protocol traffic specification message to a controlled device, wherein the border gateway protocol traffic specification message comprises the traffic adjustment and optimization command; the controlled device forwards the border gateway protocol traffic specification message to other core devices other than the controlled device in a backbone network; and the core devices schedule the traffic to new paths according to the traffic adjustment and optimization command so as to achieve traffic adjustment and optimization. According to the traffic scheduling method disclosed by the invention, real-time dynamic adjustment and optimization of traffic can be achieved through the SDN centralized architecture, thereby improving the overall utilization rate of the network; and the BGP flowspec information can be flexibly spread on the network, thereby reducing the huge workload of one by one configuration.
Owner:CHINA TELECOM CORP LTD

Gas compressor vibration fault detection method based on recurrence plot and deep convolutional network

The invention discloses a gas compressor vibration fault detection method based on a recurrence plot and a deep convolutional network. The method comprises the steps of firstly, constructing a compressor aerodynamic instability vibration fault database, selecting existing experimental data, and obtaining a large number of fault databases through data preprocessing; secondly, selecting a two-dimensional image conversion method; converting the one-dimensional vibration signal into a two-dimensional image, finally, selecting a deep convolutional neural network Inception V3 model, keeping a modelfeature extraction link unchanged by adopting transfer learning, and performing fault feature extraction and detection on a two-dimensional image recursive graph by adjusting a feature integration link structure. According to the method, the two-dimensional image reflects the phase space manifold in the time sequence internal dynamic system, the dynamic characteristics of the system are disclosed,and the method is suitable for carrying out characteristic analysis on the non-stationary nonlinear time sequence. Advantages in machine vision are applied to the field of non-vision, and mechanicalvibration fault detection is performed by adopting a deep convolutional neural network Inception V3 model so that huge workload of manual feature design can be reduced.
Owner:HANGZHOU DIANZI UNIV

Aluminum smelting process furnace box temperature prediction method based on deep belief network

The invention discloses an aluminium smelting process furnace box temperature prediction method based on a deep belief network. The method comprises the following steps that 1, a plurality of sets oforiginal data are acquired; 2, for the original data acquired in the step 1, abnormal data is eliminated, and noise is removed to obtain normal data; 3, for the normal data obtained in the step 2, thedeep belief network is used for feature extraction to obtain feature vectors; 4, the sets of feature vectors are divided into a training set and a testing set, and a prediction model is built, wherein through the sets of feature vectors in the training set, the prediction model is trained constantly to obtain a trained prediction model; 5, each set of feature vectors in the testing set is used for testing the trained prediction model, if the testing stability is good, the prediction model can be used for predicting a furnace box temperature, and if the testing stability is not good, the step3 is returned to. According to the aluminium smelting process furnace box temperature prediction method based on the deep belief network, the furnace box temperature can be predicted through other indexes easy to detect, components and parts are not prone to be damaged, and the economic benefits are good.
Owner:GUANGXI UNIV

Steel structure push-pull protective closed door

The invention discloses a push-pull type steel-structured airtight protective door. The push-pull type steel-structured airtight protective door comprises a door sash, a rolling wheel, a door frame, sealing rubber strips on the periphery of the door frame, a locking linkage mechanism, an outer side guide roller mechanism, a ditch cover plate opener and a steel guide rail for movement of the rolling wheel. The two sides of the door sash are respectively provided with an inner side guide roller mechanism. The inner side guide roller mechanisms are matched with the locking linkage mechanism to enable sealing embedded and pressed strips on the door sash to be integrally embedded or exit out of inlaid grooves of the sealing rubber strips, so smooth opening of the door sash can be guaranteed. A manual traveling wheel mechanism can guarantee that the large-size door sash slides lightly and conveniently in the opening process. The small airtight protective door brings convenience for a small amount of people to go out and come in. The push-pull type steel-structured airtight protective door is used for integrated entrances and exits for subways and civil defense, and solves the problem that the large-size airtight protective door is difficult to be airtight and move. The push-pull type steel-structured airtight protective door is simple in structure, convenient to operate, low in manufacturing cost, safe to use, obvious in war preparedness benefit, economic benefit and social benefit, wide in popularization and application prospect, and reduces huge workload in peacetime and wartime conversion.
Owner:4TH DESIGN & RES INST OF ENGINEER CENT STAFF PLA

Construction method of water island reef blowing filling construction sand filling machine

The invention discloses a construction method of a water island reef blowing filling construction sand filling machine. A reef sand receiving hopper is installed at the top of a vibrating screen; thevibrating screen is installed at the top of a platform; a crushing stirring tank for crushing reef sand is arranged on the outer side wall of a water flow separation tank and fixed at the top of the platform; the bottom of a drying pipeline is connected with the stirring tank; a drying box is arranged at the top of the stirring tank; the four corners of the bottom of the platform are provided withrollers which are supported on a rail of a sea filling area; the bottom of the platform is provided with a vibration buffering device; and the bottom of the stirring tank is connected with a rotatable sand discharge port. The large-particle-size reef sand is crushed and stirred through rotating fan blades of the sand filling machine, so that the large-particle-size reef sand particles are crushedto become smaller, the later-stage crushing stress of the reef sand is increased, the possibility that the bottom reef sand is crushed due to the increase of the gravity at the upper part in the later-stage filling process is greatly reduced, and thus a series of engineering problems of land subsidence, ground cracks and the like in the later stage are avoided.
Owner:CHINA THREE GORGES UNIV

Pole piece extension consistency control method and control system

The invention discloses a pole piece extension consistency control method and a control system, the system comprises a code sprayer, a first camera, a second camera, a third camera and a PLC which are sequentially arranged along a pole piece belt conveying direction, a code spraying port of the code sprayer is vertically downward and is opposite to the upper surface of a pole piece which is ready to enter a front passing roller, lenses of the first camera, the second camera and the third camera are vertically arranged downwards and are sequentially positioned between the front passing roller and the front tension roller, between the front tension roller and the upper and lower rollers and between the rear tension roller and the rear passing roller; the PLC receives the image information collected by the first camera, the second camera and the third camera, identifies the code spraying position on the upper surface of the pole piece, judges the extension state of the pole piece in real time, and sends a control instruction; and the pole piece rolling tension control system adjusts the stretching tension according to the control instruction to keep the extension consistency state of the pole piece. According to the invention, sufficient extension of the tab region can be ensured, and the problem of snake-shaped bending of the pole piece caused by insufficient extension of the tab region or wrinkling of the foil region caused by over-stretching of the tab can be avoided.
Owner:楚能新能源股份有限公司

Multifunctional bagging machine

The invention discloses a multifunctional bagging machine. The multifunctional bagging machine comprises a support, a feeder, a feedstock compactor, bagging shellers and a movable guiding bagging trolley, wherein the feeder is connected with a cornstalk smashing bin of a corn harvester, the feedstock compactor is communicated with the feeder, the bagging shellers are arranged on two sides of the feedstock compactor, and the movable guiding bagging trolley is positioned below the feedstock compactor. The feedstock compactor comprises a feedstock compactor shell and a fixed shaft which is fixed on the support and inserted into the feedstock compactor shell, a driving disc is mounted at the upper end of the outer side of the fixed shaft and connected with a reduction gear via a hydraulic device, a driving shaft is mounted on the outer side of the fixed shaft in a sleeving manner, a spiral stirrer is mounted on the outer side of the driving shaft in a sleeving manner, a central hydraulic cylinder is mounted at the center of the fixed shaft in a sleeving manner and connected with an oil pipe, and a piston of the central hydraulic cylinder is connected with the spiral stirrer after penetrating through the fixed shaft and the driving shaft. The movable guiding bagging trolley comprises a bottom support, and two bagging shells are placed on the bottom support. The multifunctional bagging machine has the advantages that cooperation with the corn harvester is achieved, and smashed cornstalks can be compacted in the feedstock compactor shell and then bagged continuously.
Owner:张志信

Alternating-current deicing device for distribution line

The invention belongs to the field of the deicing for a distribution line and particularly relates to an alternating-current deicing device for the distribution line. The deicing device consists of a group of single-phase silicon-controlled valves, an alternating-current reactor, a bypass-used single-phase isolating switch and three single-phase isolating switches, wherein an input end of a circuit breaker is connected with a deicing power supply, an output end of the circuit breaker is connected with input ends of the single-phase isolating switches on a three-phase line respectively, and output ends of the single-phase isolating switches are connected with a deiced line; and the single-phase silicon-controlled valves and the alternating-current reactor are connected between the output end of the circuit breaker in any phase and the input ends of the single-phase isolating switches in series, and the two ends of the alternating-current reactor are connected with the bypass-used single-phase isolating switch in parallel. According to the deicing device, with the utilization of the feature of blocking alternating current and allowing direct current of a distribution transformer, the distribution transformer does not need to be dismantled in the alternating-current deicing for the distribution line, thereby reducing a large amount of work for dismantling the distribution transformer in the direct-current deicing; and the deicing current is continuously regulated through regulating the firing angles of the single-phase silicon-controlled valves.
Owner:ZHEJIANG GUIRONG XIEPING TECH

A system and method for actively capturing low-altitude small unmanned aerial vehicles

The invention relates to a system and method of actively capturing a low altitude small unmanned aerial vehicle, wherein an unmanned aerial vehicle platform is used for realizing low altitude flight, and is provided with a binocular vision image acquisition unit and an ejection capturing unit. The binocular vision image acquisition unit is used for shooting binocular video image information in a monitoring space; a multi-information collection unit is used for obtaining the inclination angle information, height information and / or geographical position information of the unmanned aerial vehicle platform; an information processing decision unit is used for fusing the binocular vision image information and the inclination angle information, height information and / or geographical position information, and calculating and analyzing air vehicle detection identification, depth information obtaining, air vehicle tracking, and air vehicle capturing commands; the ejection capturing unit captures air vehicles according to the air vehicle capturing commands. The system and method improve the capability of actively capturing invasive small low altitude small unmanned aerial vehicles.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Online detection method for optical fiber link of modular multilevel converter control system

The invention discloses an online detection method for an optical fiber link of a modular multilevel converter control system. The modular multilevel converter control system comprises a converter control system optical transceiver module, a sub-module control panel optical transceiver module and an optical fiber connected between the converter control system optical transceiver module and the sub-module control panel optical transceiver module. Receiving optical power detection circuits are configured on an optical transceiver module of a converter control system and an optical transceiver module of a sub-module control panel, and receiving optical power detection is carried out on an uplink optical fiber link and a downlink optical fiber link respectively. The online detection method comprises the following steps: summarizing received optical power information of all uplink and downlink optical fiber links, diagnosing and analyzing data according to a communication margin detection strategy and/or an optical fiber attenuation detection strategy, and early warning an unhealthy optical fiber link channel in advance. The online detection method can be used to solve a health diagnosis problem of the optical fiber link in a simplest, reliable and comprehensive mode.
Owner:NR ENG CO LTD +1

Sand filling machine and construction method for dredging and filling construction of islands and reefs on water

ActiveCN110629761BDeepen and enrich the theory of dredging and fillingInnovativeEmbankmentsLand reclamationWater flowStructural engineering
The invention discloses a sand filling machine construction method for water island reef blow-filling construction. The reef sand receiving bucket is installed on the top of the vibrating screen, the vibrating screen is installed on the top of the platform, and the outer wall of the water flow separation tank is provided with a reef sand breaking device. Broken mixing tank, the broken mixing tank is fixed on the top of the platform, the bottom of the drying pipeline is connected with the mixing tank, the top of the mixing tank is provided with a drying box; the four corners of the bottom of the platform are equipped with rollers, and the rollers Supported on the track of the reclamation area, a vibration buffer device is installed at the bottom of the platform; the bottom of the mixing tank is connected with a rotatable sand discharge port. The reef sand with larger particle size is crushed and stirred by the rotating fan blade of the sand filling machine, so that the reef sand particles with large particle size are broken and smaller, which increases the crushing stress of the reef sand in the later stage, and greatly reduces the impact of the upper reef sand on the bottom reef sand during later filling. The possibility of breaking due to the increase of gravity, so as to avoid a series of engineering problems such as ground subsidence and ground cracks in the later stage.
Owner:CHINA THREE GORGES UNIV

Intelligent number calculation method and device, equipment terminal and computer readable storage medium

The invention relates to an intelligent number calculation method and device, an equipment terminal and a computer readable storage medium. The intelligent number calculation method comprises the steps of obtaining a preset configuration file; verifying the preset configuration file to obtain a verification result, judging whether the preset configuration file is modified or not; when the preset configuration file is modified, generating and displaying file modification prompt information; when the preset configuration file is not modified, obtaining interface element parameters and data generation parameters from the preset configuration file, setting interface element items and data generation items according to the interface element parameters and the data generation parameters; detecting a calculation number generation command of the user; when the calculation number generation command is detected, generating the calculation number data file according to the set interface element item and the data generation item, so that when the calculation number requirement of the user is met, the situation that the workload is increased due to the fact that a large number of source codes are modified according to the requirement of the user can be avoided, the workload caused by source code modification is greatly reduced, and the working efficiency is improved.
Owner:SHENZHEN GONGJIN ELECTRONICS CO LTD
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