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54results about How to "Less reliance on experience" patented technology

Real-time data collecting and fault positioning system of power distribution network and working method thereof

The invention provides a real-time data collecting and fault positioning system of a power distribution network and a working method thereof. The real-time data collecting and fault positioning system comprises transformer substation voltage collecting units, a plurality of line units, a real-time data server, a background monitoring computer and a handheld terminal, wherein each transformer substation is provided with one transformer substation voltage collecting unit; each transformer substation voltage collecting unit comprises one intelligent voltage detection terminal; each line unit comprises three fault positioning and data collecting sensors and one communication and calculation terminal; the intelligent voltage detection terminal, the communication and calculation terminal and the handheld terminal are in wireless communication with the real-time data server; the three fault positioning and data collecting sensors of the same line unit are in short-distance wireless communication with the communication and calculation terminal. The working method mainly comprises the step of carrying out real-time data collection and fault judgment. The information precision of power transmission line data which is collected in real time is high, short circuit and grounding faults are rapidly and accurately judged, the time of powering off and overhauling is shortened, the quantity of fault line patrolling workers is reduced and manpower and material resources are saved.
Owner:CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2

Spine image generating system based on ultrasonic rubbing technology and spine surgical navigation positioning system

ActiveCN107595387AAvoid damageAccurate intraoperative navigationImage enhancementImage analysisContour matchingSelf navigation
A spine image generating system based on an ultrasonic rubbing technology comprises a collecting unit and a processing unit. Ultrasonic rubbings are generated by the system based on ultrasonic imageswith two-dimensional spine surface structure characteristic outlines, and matched with a digital medical image outline, and thus a personalized spine surface topographic map which is consistent with an intraoperative position of a patient and updated in real time is obtained. A spine surgical navigation positioning system based on the spine image generating system comprises a navigation module andthe spine image generating system based on the ultrasonic rubbing technology. The spine surgical navigation positioning system can obtain the spine surface topographic map which is consistent with the intraoperative position of the patient and updated in real time, and can conduct real-time intraoperative navigation based on the spine surface topographic map. The spine image generating system based on the ultrasonic rubbing technology and the spine surgical navigation positioning system can greatly reduce the difficulty of a spinal operation, can achieve the operation auxiliary purposes of precise and nonradiative guided puncture, real-time navigation and being simple, convenient and reliable, and are particularly beneficial for application and popularization of a spinal minimally invasive surgery technology which is represented by a spine endoscopy to primary health care institutions.
Owner:ZHEJIANG UNIV

Power grid fault intelligent processing system and method based on knowledge graph

The invention discloses a power grid fault intelligent processing system based on a knowledge graph. A fault processing plan analysis module of the system is used for obtaining a fault processing entity and relation knowledge; the graph generation module is used for storing the identified entities and entity relationships in a triple form to obtain an equipment entity knowledge graph, an accident plan knowledge graph and a disposal flow knowledge graph; the fault sensing module is used for intelligently sensing and collecting information related to power grid faults in a power grid system; the fault risk assessment module is used for carrying out risk identification; and the fault intelligent processing module is used for reasoning a processing measure suitable for the current fault based on the accident plan knowledge graph and the processing flow knowledge graph in combination with the topological change, the power flow and the alternating current power supply frequency before and after the power grid fault after the power grid has the line fault. According to the invention, comprehensive intelligent alarm information can be sensed in all directions, and scheduling personnel are guided to carry out intelligent disposal on power grid risks and power supply restoration based on the established knowledge graph.
Owner:内蒙古电力(集团)有限责任公司乌兰察布供电分公司

Multi-branch power transmission line fault positioning method, device, equipment and system

The embodiment of the invention provides a multi-branch power transmission line fault positioning method, device, equipment and system. The method comprises the steps: obtaining the operation state information of a power transmission line, wherein the operation state information comprises abrupt change current and abrupt change time; when the abrupt change current exceeds a first threshold value and the abrupt change time exceeds a second threshold value, obtaining a fault type of the power transmission line; performing fault positioning and dotting in a line topological graph according to the geographic information system to generate fault nodes; and acquiring position information of a fault node, and sending the position information and the fault information to a user terminal. According to the invention, the fault location dotting is carried out in the line topological graph by using the geographic information system, and the overall comprehensive research and judgment is carried out on the fault position of a multi-branch power transmission line, so that the problems of inaccurate line fault location and false alarm are solved, and the situations of false alarm and confusion caused by on-site fault judgment are avoided.
Owner:XIAMEN FOUR FAITH COMM TECH

Intelligent pressure controlling method of urban gas pipeline gasification operation based on Beidou positioning

The invention discloses an intelligent pressure controlling method of an urban gas pipeline gasification operation based on Beidou positioning. The method comprises the following steps: 1, determining a position of a gas pipeline leakage point by utilizing a Beidou positioning system and a gas pipeline network database, and using the gas pipeline leakage point as a gasification operation point; 2, initially adjusting the flow and the pressure of a flow control point positioned at the upstream of the gasification operation point according to data feedback of the gasification operation point; 3, renewedly adjusting the flow and the pressure of the flow control point positioned at the upstream of the gasification operation point according to point pressure data, peripheral gas pipeline network data and gasification operation historical data acquired by detecting the downstream of the gasification operation point. According to the intelligent pressure controlling method disclosed by the invention, by intelligently adjusting the pressure in the pipeline, the aim of manual operation can be reduced, the difficult of low precision of pressure intensity control of the conventional gas pipeline gasification operation and poor security of the gasification operation can be solved, and first-aid repair targets of security, high efficiency, reasonability and completion are realized.
Owner:BEIJING GAS GRP

Oral implantation system, oral implantation method and computer readable storage medium

The invention provides an oral implantation system, an oral implantation method and a computer readable storage medium. The system comprises positioning equipment, a processor and display equipment, wherein the positioning equipment comprises a marking part and a recognizing part, the marking part is used for marking the implanting position, and the recognizing part is arranged on an operation apparatus and used for marking the current position of the operation apparatus; the processor is connected to the positioning equipment and used for feeding a work signal back according to the current position and a target implanting position; and the display equipment is connected to the processor and used for displaying the current position, the target implanting position and the work signal. By means of the oral implantation system, a doctor can see the position of the operation apparatus visually through the display equipment and adjust the operation apparatus according to the actual condition, so that real-time positioning and visual operation of the operation apparatus are achieved, dependence of dental implantation on experience of the doctor is reduced, an operation guide plate in theprior art is cancelled, the dental implantation cost is lowered, and the problem of insufficient operation flexibility is solved.
Owner:ZHEJIANG CANWELL MEDICAL DEVICES CO LTD

A method for measuring and identifying a geometric error source of a machine tool through workpiece error variation

The invention discloses a method for measuring and identifying a geometric error source of a machine tool through workpiece error variation. The method comprises the following steps: carrying out finite element analysis considering force and thermal load on a precision machine tool with any series structure, extracting guide rail deformation data, performing calculating according to the guide raildeformation data to obtain a machine tool motion axis error, and performing calculating through deviation accumulation to obtain a tool nose point position error; Obtaining an actual machining path according to the tool nose point position error obtained in the previous step, and evaluating the precision of the machined part; Orthogonal test design is conducted, the two steps are repeated, the force and thermal load boundary conditions of the finite element model of the machine tool are changed, and multiple sets of guide rail deformation data and corresponding machining precision are obtained; On the basis of the last step, the mapping relation between the error change of the machined part and the geometric error source of the machine tool is obtained, the geometric error source of the machine tool is force and thermal load, and then the geometric error source of the machine tool is identified through the error change measurement of the machined part. The machining precision of the machine tool is improved, and an engineer is effectively helped to carry out error tracing.
Owner:XI AN JIAOTONG UNIV

Automobile air brake system adhesion coefficient utilization rate test device and method

The invention relates to the technical field of automobile test devices, and discloses an automobile air brake system adhesion coefficient utilization rate test device and method. The test device comprises an air inlet selection valve, a pipeline cut-off valve, an electromagnetic switch valve, an electric pressure regulating valve, a first pressure release valve, a second pressure release valve and an air outlet selection valve, wherein the air inlet selection valve is provided with a first air inlet, a second air inlet and a first air outlet; the first air inlet can be used for being connected with an original automobile pipeline of an automobile brake system, and the second air inlet can be used for being connected with an air tank; the pipeline cut-off valve is provided with a third airinlet, a second air outlet and a third air outlet; the third air inlet is communicated with the first air outlet;theair outlet selection valve is provided with a fourth air inlet, a fifth air inlet and a fourth air outlet; the fourth air inlet is communicated with the first pressure release valve; the fifth air inlet is communicated with the second pressure release valve; and the fourth air outlet can be used for being connected with an air chamber. The device has the advantages that the test device is simple, multiple in functions and high in test efficiency; the electric pressure regulatingvalve can be manually and electrically regulated, and is convenient to regulate and high in regulating precision.
Owner:中汽研汽车检验中心(常州)有限公司

Low-pressure turbine blade profile aerodynamic design method based on optimal load distribution model optimization

The invention discloses a low-pressure turbine blade profile aerodynamic design method based on optimization of an optimal load distribution model, and the method comprises the steps: generating a blade profile geometric sample according to a given blade profile parameter value range and low-dimensional aerodynamic design parameters, calculating the optimal load distribution through CFD when the total pressure loss of the blade profile is minimum, and generating a blade profile database; constructing an optimal load distribution model based on a multi-output Gaussian process and a deep neural network, and training the optimal load distribution model by minimizing a marginal likelihood loss function according to the training samples in the blade profile database to obtain a hyper-parameter group in the optimal load distribution model; and according to the trained optimal load distribution model, target optimal load distribution of the target low-dimensional aerodynamic design parameters is calculated, and an optimal aerodynamic blade profile corresponding to the target optimal load distribution is calculated by using a blade profile inverse design model. According to the design method, the precision and efficiency of pneumatic design of the turbine blade profile can be improved, and the geometric design period of the turbine blade profile can be shortened.
Owner:BEIHANG UNIV

Closed-loop expectoration method and system for automatically titrating expectoration pressure

ActiveCN110038198AReduce experience dependenceReduce titration workloadRespiratorsMedical devicesComputer usersClosed loop
The invention relates to a closed-loop expectoration method for automatically titrating expectoration pressure. The method comprises the following steps: S1, setting a reference value C2 of negative pressure phase flow-volume ring area namely F-V ring area of a user; S2, using an actual value R2 of the negative pressure phase F-V ring area of the computer user; and S3, comparing the reference value C2 of the negative pressure phase F-V ring area with the actual value R2 of the negative pressure phase flow-volume ring area to adjust negative phase pressure E-P and/or positive phase pressure I-P. The invention also provides a closed-loop expectoration system for automatically titrating expectoration pressure. The system comprises a reference value setting module, a real value calculation module, a comparison module and an adjustment module, wherein the reference value setting module sets the reference value C2 of the negative pressure phase flow-volume ring area namely the F-V ring area,the real value calculation module monitors and calculates the actual value R2 of the negative pressure phase F-V ring area, the comparison module compares the reference value C2 with the actual valueR2, and the adjustment module adjusts the negative phase pressure E-P and the positive phase pressure I-P based on the consequence from the comparison module. The expectoration method and system guarantee safer and effective expectoration.
Owner:RUXIN BEIJING MEDICAL SYST CO LTD

Automatic assembling equipment for electric connector production and processing

The invention discloses automatic assembling equipment for electric connector production and processing, and the equipment comprises a base with one side provided with an rightward-turned-L-shaped step, a flat rectangular cavity is formed in the vertical side wall of the step in a sunken mode, the height direction of the flat rectangular cavity is the vertical direction, the flat rectangular cavity upwards penetrates through the top face of the base in the height direction, and a second spring plays a role in supporting a movable frame; a blind cavity is formed in the movable frame, the top end of the blind cavity is open, a U-shaped notch is formed in the side wall, facing the outer check block, of the blind cavity, a third spring is vertically installed in the blind cavity, an extrusion rod is further vertically fixed to the side, facing the outer check block, of the movable frame, and a roller is installed at the bottom end of the extrusion rod; a stamping block is installed at the bottom end of the vertical section of the stamping rod and comprises a main block and a sub-block, and the main block and the sub-block are elastically and telescopically connected in the horizontal direction and are located on the same horizontal line all the time. The equipment is simple and practical in structure, and production and assembly of the electric connector can be rapidly and conveniently achieved.
Owner:江苏富浩电子科技有限公司

Intelligent alarm method and system based on spare power automatic switching analysis of power system

The invention discloses an intelligent alarm method and system based on spare power automatic switching analysis of a power system. The method comprises the steps: determining preset action logic of spare power automatic switching under each fault event according to collected electrical quantity information and a predetermined spare power automatic switching model; according to the collected monitoring information and the predetermined spare power automatic switching model, judging a current action state of spare power automatic switching under each fault event; and obtaining final spare powerautomatic switching action information corresponding to each fault event by integrating the preset action logic of the spare power automatic switching and the current action state obtained by judgment. The method can be used to determine whether the spare power automatic switching is the spare power automatic switching maloperation caused by people or equipment damage or a correct action caused by an actual fault of a main power supply fault, does not need operation and maintenance personnel to go to a substation end for confirmation, can reduce dependence on the experience of the field personnel through judgment, and can greatly shorten the mode recovery time.
Owner:NARI TECH CO LTD +2

Intelligent daylight withering room

InactiveCN106444927AAbility to record productionImprove per capita management efficiencySimultaneous control of multiple variablesInformation processingWeight change
The invention provides an intelligent daylight withering room. The intelligent daylight withering room comprises an information collecting module which collects the air temperature and humidity and the illumination intensity of the withering room, the weight change of a sample on a sample table and indoor environment data, an information processing and control module which processes the collected data and manages a load module according to the processed data, the load module which controls the air temperature and humidity and the illumination intensity in the withering room, a network transmission module which transmits the data in the withering room to an application module, and the application module which monitors and controls the air temperature and humidity and the illumination intensity in the withering room and the tea dehydration rate through the information processing module. The ability to remotely monitor the production process of the withering room is improved. The production recording ability of the whole production process is provided for customers. Through automatic collection and control, the efficiency of per capita management is improved. The labor cost is saved. Dependence on the experience of an operator is reduced. The automation and standardization of the production process are improved. A suitable tea processing environment is created. The processing efficiency is improved.
Owner:SICHUAN XIULING CHUNTIAN AGRI DEVCO LTD

A spiral maxillary sinus lifting device and lifting system

The invention discloses an internal maxillary sinus lifting device which comprises a positioning guide plate, a lifting rod and an annular sleeve block gauge, wherein guide holes corresponding to planting pits are formed in the positioning guide plate; threaded sleeves are fixed inside the guide holes; the outer walls of the threaded sleeves are adapted to the guide holes; internal threads are formed in the inner walls of the threaded sleeves; the lifting rod consists of a forced part, a baffle ring and a working part; the forced part is portioned from the working part by the baffle ring; the working part comprises a threaded section, a head part and a connecting section; the threaded section is meshed with the internal threads inside the threaded sleeves; internal threads are formed inside the annular sleeve block gauge. In the operation process, the top surfaces of the guide holes are taken as positioning reference surfaces, the length of the working part of the lifting rod is greater than the distance from the top surfaces of the guide holes to the bottoms of the planting pits, the internal lifting height of the lifting rod is as shown in the formula. An internal maxillary sinus lifting system consists of the internal maxillary sinus lifting device and a hole formation tool, wherein the hole formation tool comprises a drill bit and a pressing plate. The internal maxillary sinus lifting device has the advantages that the lifting precision is high and the internal lifting device fixation can be achieved without damaging the planting pits.
Owner:6D DENTAL TECH

A closed-loop expectoration method and system for automatic titration of expectoration pressure

The invention relates to a closed-loop expectoration method for automatically titrating the pressure of expectoration, comprising S1, setting the reference value C2 of the user's negative pressure phase flow-volume ring area F-V ring area; S2, calculating the user's The actual value R2 of the negative pressure phase F-V ring area; S3, compare the reference value C2 of the negative pressure phase F-V ring area, and the actual value R2 of the negative pressure phase flow-volume ring area to adjust the negative phase pressure E-P and / or normal phase pressure I‑P. The present invention also proposes a closed-loop expectoration system for automatically titrating the pressure of expectoration, including: a reference value setting module, which sets the reference value C2 of the negative pressure phase flow-volume ring area F-V ring area; the actual value calculation module , monitor and calculate the actual value R2 of the negative pressure phase F-V ring area; the comparison module compares the reference value C2 and the actual value R2; the adjustment module adjusts the negative phase pressure E-P and the positive phase based on the results of the comparison module Pressure I‑P. The expectoration method and system of the present invention ensure safer and more effective expectoration.
Owner:RUXIN BEIJING MEDICAL SYST CO LTD
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