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56results about How to "Timely assessment" patented technology

Transformer fault diagnosis and positioning system based on digital twinning

The invention discloses a transformer fault diagnosis and positioning system based on digital twinning, which belongs to the field of fault diagnosis of power equipment, and comprises a communicationsensing module used for transmitting bottom monitoring data acquired from an equipment entity to a system support module; a system supporting module used for receiving and preprocessing bottom-layer monitoring data and storing various data, models and expert systems; a dynamic twinning module used for analyzing the multi-dimensional probability condition of the equipment fault, constructing dynamic degradation modeling of different health states, and realizing model correction through human-computer interaction, real-time measurement and dynamic updating subsequently; a decision diagnosis module used for constructing a digital twinborn body of to-be-diagnosed data and realizing diagnosis and positioning of a health state; and a user interface module used for displaying the diagnosis resultand the related information through a UI interface and providing further decision and man-machine interaction. Accurate cognition and closed-loop optimization of fault diagnosis and positioning can be realized, and the economy and reliability of transformer equipment are improved.
Owner:WUHAN UNIV

Model used for evaluating health state of electrical equipment

InactiveCN106203875AHealth status in timeTimely assessment of health statusResourcesPower equipmentEngineering
The invention discloses a model used for evaluating the health state of electrical equipment, relates to the field of the electrical technology, can accurately evaluate the operation health state of the electrical equipment, and is convenient to carry out operations including reasonable use and maintenance, fault prediction, power distribution management and the like on the electrical equipment. The model used for evaluating the health state of the electrical equipment comprises an evaluation index module, a comment module, a fuzzy assessment module and a grey correlation module, wherein the evaluation index module comprises a plurality of state quantity indexes which affect the health state of the electrical equipment and the weight of each state quantity index; the comment module comprises a comment set and is used for assessing the health state of the electrical equipment; the fuzzy assessment module comprises a membership function established on the basis of the comment set, and is used for combining with the weight of each state quantity index through the membership function to carry out fuzzy assessment on the health state of the electrical equipment to obtain a fuzzy assessment conclusion; and the grey correlation module comprises a clear assessment standard established on the basis of the comment set, and is used for carrying out clear assessment processing on the fuzzy assessment conclusion to obtain an accurate health state evaluation result.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Evaluation method for predicting remaining creep rupture life of supercritical unit T/P91 heat-resistant steel based on room temperature Brinell hardness

The invention relates to the field of evaluation of the remaining creep rupture life of iron and steel materials, particularly to an evaluation method for predicting the remaining creep rupture life of a supercritical unit T/P91 heat-resistant steel based on room temperature Brinell hardness. According to the present invention, the corresponding relationship between the creep rupture life and theroom temperature Brinell hardness HB in different aging states is established by using the high-temperature tensile strength of the material as the bridge so as to establish the mathematical analysisof the relationship between the room temperature Brinell hardness and the creep rupture life at the given temperature under the given stress; and the remaining creep rupture life of the current material under the specific steam parameter can be rapidly and accurately predicted through the simple, convenient and non-destructive hardness test, such that the economic loss caused by shutdown or pipeline cutting and the like can be directly eliminated, and the remaining creep rupture life of the material can be timely evaluated due to the convenience and the rapidness so as to effectively prevent the accident caused by the aging failure.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Ground disaster early warning system for power transmission line

The invention discloses a ground disaster early warning system for a power transmission line. The system comprises an intelligent three-dimensional posture and vibration monitor, a GNSS ground surfacedisplacement monitor and an edge calculation server. The intelligent three-dimensional posture and vibration monitor is fixedly installed on a tower rod of the power transmission line and is used forcollecting triaxial acceleration data and inclination data of the tower rod. A data output end of the intelligent three-dimensional posture and vibration monitor is connected to a data input end of the edge calculation server, and the intelligent three-dimensional posture and vibration monitor is used for transmitting the collected tower rod triaxial acceleration data and inclination data to theedge calculation server. The GNSS ground surface displacement monitor is installed on a tower foundation of the tower rod and is used for collecting three-dimensional ground surface deformation data of the tower foundation. A data output end of the GNSS ground surface displacement monitor is connected to a data input end of the edge calculation server and is used for transmitting the collected tower foundation three-dimensional ground surface deformation data to the edge calculation server. The edge calculation server is installed on the tower foundation of the tower rod.
Owner:SICHUAN DONGYU INFORMATION TECH

Multifunctional wristband for monitoring internal arteriovenous fistula of hemodialysis patient

InactiveCN111134652AProtection from traumaProtect from traumaStethoscopeBody temperature measurementPseudo aneurysmDialysis patients
The invention relates to a multifunctional wristband for monitoring an internal arteriovenous fistula of a hemodialysis patient. The multifunctional wristband for monitoring the internal arteriovenousfistula of the hemodialysis patient comprises a wrist strap, wherein an internal fistula monitoring module and a temperature sensor are located on a skin side of the wrist strap, the internal fistulamonitoring module comprises an internal fistula natural blood flow volume monitor, a vascular wall thickness monitoring module and an internal fistula tremor and internal fistula pulsation monitoringmodule, and an alarming device, a display, a wireless communication module and a controller are arranged on the wrist strap. The multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can detect the natural blood flow volume, tremors and pulsation of the internal fistula, the vascular wall thickness and the body temperature of the hemodialysis patient, and can protect the internal fistula from trauma at the same time to prevent pseudoaneurysm, so that the internal fistula is subjected to good monitoring, protection and remote management, and the life of a lifeline (vascular access) is prolonged; the multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can give different alarming prompts according to different situations to remind the patient of timely medical treatment, so that timely rescue of the internal fistula is facilitated; and an elastic buffering layer is arranged on the innersurface of the wrist strap, and has a buffering function when the internal fistula part is under external attack, and then damage to functions of the internal fistula and local massive hemorrhage areprevented, so that the elastic buffering layer plays a role in effectively protecting the internal fistula.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

Apparatus and method for evaluating organic pollution condition of water quality by utilizing microbial fuel cell

PendingCN108007983AGood redox potential differenceTimely assessment of pollution levelsGeneral water supply conservationBiochemical fuel cellsMicrobial fuel cellFuel cells
The invention discloses an apparatus for evaluating an organic pollution condition of water quality by utilizing a microbial fuel cell, which belongs to the technical field of water environment monitoring. The apparatus comprises an apparatus body with a top opening, a water inlet pipe, a water outlet pipe and a microbial fuel cell apparatus, wherein the apparatus body is arranged at the outer side of the waste water; the microbial fuel cell apparatus comprises an anode chamber and a cathode chamber which are connected with each other by virtue of a conducting wire, and a current monitoring apparatus and an outer resistor are arranged between the anode chamber and the cathode chamber; the anode chamber and the cathode chamber are respectively arranged at two inner sides of the apparatus body, the anode chamber is arranged on the bottom of the waste water in the apparatus body, and the cathode chamber is arranged on a junction between the waste water and air in the apparatus body. The apparatus is simple in structure and convenient in operation, and on-site evaluates the organic pollution condition in the waste water in real time by utilizing the microbial degradation principle in the organic waste water; and the waste water in the apparatus body is continuously and stably updated, and the anode chamber and the cathode chamber are arranged in the apparatus body, so that the damage of the apparatus caused by accidents can be effectively avoided, and the monitoring precision is high.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Evaluation method for predicting remaining creep rupture life of supercritical unit T/P92 heat-resistant steel based on room temperature Brinell hardness

The invention relates to the field of evaluation of the remaining creep rupture life of iron and steel materials, particularly to an evaluation method for predicting the remaining creep rupture life of a supercritical unit T/P92 heat-resistant steel based on room temperature Brinell hardness. According to the present invention, the corresponding relationship between the creep rupture life and theroom temperature Brinell hardness HB in different aging states is established by using the high-temperature tensile strength of the material as the bridge so as to establish the mathematical analysisof the relationship between the room temperature Brinell hardness and the creep rupture life of the P92 steel at the given temperature under the given stress; and the remaining creep rupture life of the current material under the specific steam parameter can be rapidly and accurately predicted through the simple, convenient and non-destructive hardness test, such that the economic loss caused by shutdown or pipeline cutting and the like can be directly eliminated, and the remaining creep rupture life of the T/P92 heat-resistant steel can be timely evaluated due to the convenience and the rapidness so as to effectively prevent the accident caused by the aging failure.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Method and device for quickly and automatically generating software graphical interface

The invention discloses a method for quickly and automatically generating a software graphical interface. The method comprises the following steps: S100, receiving a source picture for generating thegraphical interface; s200, identifying various UI component graphs and text information in the source picture through machine vision detection; and S300, completing automatic layout of the UI component, automatically and quickly generating a graphical interface, and generating and displaying a control script code of the interface. The invention further discloses a corresponding device. According to the method for quickly and automatically generating a software graphical interface, source pictures of a graphical interface are generated by flexibly adopting various modes such as sketch drawing on a drawing board, field hand-drawn sketch input and external picture import; the problems that in the software design process, UI design and product manager repeated drawing, modification and other efficiency are low, and design inspiration and graphic expression are affected are effectively solved, the sketch is rapidly converted into a graphic interface capable of being operated practically, the graphic interface design and manufacturing process is shortened, and the graphic interface input work efficiency is greatly improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Space signal accuracy evaluation method and system

The invention provides a space signal accuracy evaluation method and system. The method comprises the steps that after an evaluation signal is received, a configuration file is called, and evaluation time is read from the configuration file; according to broadcast ephemeris acquired in real time, the first satellite position and the first satellite clock error of each satellite corresponding to the evaluation time are calculated; precision ephemeris is used to acquire the second satellite position and the second satellite clock error of each satellite corresponding to the evaluation time through interpolation; the difference between the first satellite position and the second satellite position is acquired to acquire the position difference; the difference between the first satellite clock error and the second satellite clock error is acquired to acquire the clock error difference; a user distance-measuring error is calculated according to the position difference and the clock error difference; a number of user distance-measuring errors in a preset period of time are acquired; and statistical analysis is carried out on a number of user distance-measuring errors to acquire an error statistical result. The broadcast ephemeris acquired in real time and the provided ultra-fast precision ephemeris are used to effectively solve the problem of hysteresis of traditional post-evaluation.
Owner:SPACE STAR TECH CO LTD

Device using reflective high energy electron diffraction technology to detect high voltage cable partial discharge

The invention provides a device using a reflective high energy electron diffraction technology to detect high voltage cable partial discharge, which belongs to the field of nondestructive detection of charged high voltage cable partial discharge. The invention particularly relates to the device using the reflective high energy electron diffraction technology to detect high voltage cable partial discharge. The device which uses the reflective high energy electron diffraction technology to detect high voltage cable partial discharge is convenient for use. The device provided by the invention comprises a host casing, a high frequency current transformer, a calibration pulse generator, a 40KHz ultrasonic sensor, a 150KHz ultrasonic sensor, a special high frequency sensor, a transient ground voltage sensor, an upper computer and an electroacoustic integrated sensor. The device is technically characterized in that the host casing is provided with a channel signal input port, a power supply switch, a battery charging port, a host casing ground knob and a power supply output port; and the channel signal input port comprises a first electrical signal port, a second electrical signal port, a third electrical signal port, a fourth electrical signal port, a first optical signal port and a second optical signal port.
Owner:STATE GRID LIAONING ELECTRIC POWER CO LTD SHENYANG POWER +1

High-voltage and low-voltage switch cabinet operation and maintenance terminal information acquisition system with high stability

InactiveCN112290675ASolve the problem of insufficient understanding of loss situationKnow the working status in real timeCircuit arrangementsAlarmsInformation analysisControl engineering
The invention discloses a high-voltage and low-voltage switch cabinet operation and maintenance terminal information acquisition system with high stability. The system comprises an information acquisition module, an information monitoring module, an information identification module, a database, an information analysis module, a controller, an alarm module and a display terminal. The information monitoring module is arranged to monitor the overload current information in the high-voltage and low-voltage switch cabinet in real time, and the information analysis module is utilized to analyze theoverload current information to obtain the average value of the circuit loss rate and the difference current, so that a worker can check the average value conveniently, and the circuit loss conditionin the switch cabinet can be evaluated in time; whether shutdown is needed for equipment maintenance or not is judged, the time of manual detection is saved, the working efficiency is improved, the working state of each part in the switch cabinet is known in real time by monitoring the opening and closing condition, the temperature condition and the sound condition of a knife switch in the switchcabinet, and the monitoring efficiency is improved. Safety accidents caused by the fact that working states of parts in the cabinet cannot be fed back timely are avoided.
Owner:HUAINAN WANTAI RONGBO LIGHTING TECH

Simulator for field wire

The invention discloses a simulator for a field wire. The simulator is based on an FPGA development board, an analog-digital sampling module samples an analog signal sent by a remote transmission device of a sending end and converts the analog signal into a digital signal; a fast Fourier transform module transforms the digital signal from a time domain to a frequency domain; an Ethernet module is connected with a control computer, and the control computer transmits control information to the development board; the Ethernet module transmits analog characteristic parameter information of the field wire to a parameter storage module to be stored; a calculation module calculates a signal output by the fast Fourier transform module according to the analog characteristic parameter information of the field wire, in order to simulate the transmission characteristics of the field wire; and the fast Fourier transform module transforms the signal from the frequency domain to the time domain and matches with a digital-to-analog conversion module to convert a simulation result of the transmission characteristics of the field wire into a form capable of being received by the remote transmission device. The simulator disclosed by the invention can save the time of establishing a wireless communication system meeting the requirements of field operations.
Owner:TIANJIN UNIV

Area type high-risk pregnant and lying-in woman computer monitoring and evaluating system

An area type high-risk pregnant and lying-in woman computer monitoring and evaluating system is composed of a pregnant woman pregnancy remote data collecting system, a primary hospital high-risk pregnant woman monitoring and evaluating system, an area hospital high-risk pregnant woman monitoring and evaluating system and an area central monitoring and evaluating system. The output end of the pregnant woman pregnancy remote data collecting system is connected with the input end of the primary hospital high-risk pregnant woman monitoring and evaluating system, the output end of the primary hospital high-risk pregnant woman monitoring and evaluating system is connected with the input end of the area hospital high-risk pregnant woman monitoring and evaluating system through a wire communication network, and the output end of the area hospital high-risk pregnant woman monitoring and evaluating system is connected the area central monitoring and evaluating system through the wire communication network. According to the area type high-risk pregnant and lying-in woman computer monitoring and evaluating system, high-risk and potential pregnant and lying-in women in an area can be evaluated correctly, and are distributed to corresponding hospitals for diagnosis and treatment, the adverse outcome risk of the pregnant and lying-in women and fetuses is reduced, and the whole medical level of the area is improved.
Owner:王得玲 +1

Method and system for accounting urban road traffic day-by-day carbon dioxide emission

The invention belongs to the technical field of carbon dioxide emission accounting of traffic and transportation departments, and particularly relates to a method for accounting urban road traffic day-by-day carbon dioxide emission. The method comprises the following steps: calculating reference year road traffic carbon dioxide emission of a region where a target city is located; calculating the annual road traffic carbon dioxide discharge amount of the target city all the year round in the reference year and the average daily road traffic carbon dioxide discharge amount of the target city; based on the target city road network hourly road network interval average speed and the traffic jam index, establishing a dynamically changing road network information database; establishing a road speed-traffic jam index-traffic flow prediction model and a road speed-traffic jam index-carbon emission accounting model, and accounting the carbon dioxide emission of the target road within a specified time range; calculating the day-by-day road traffic carbon dioxide emission of the target city road network; and accumulating the day-by-day road traffic carbon dioxide emissions of the target city road network to obtain the annual road traffic carbon dioxide emissions of the target city road network.
Owner:CHINESE ACAD OF ENVIRONMENTAL PLANNING
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