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151results about How to "Know the running status" patented technology

Electric transmission and transformation equipment state monitoring defect management system and method based on regulation and control integration

ActiveCN104361419AOn timeQuality and quantity completedResourcesElectric power transmissionStatistical analysis
The invention discloses an electric transmission and transformation equipment state monitoring defect management system and method based on regulation and control integration. The method is characterized in that an electric power regulation and control center is used to monitor the operation of newly added power transmission equipment in a centralized manner, monitor the electric transmission and transformation equipment state online and build an analyzing service so as to perform statistical analysis, processing and monitoring, and closed-loop tracking on equipment defect conditions, summarize defect variation trends and occurrence regularity, and promote comprehensive extension, from scheduling operation to equipment operation, of power grid safety control. Resources of an operation on-duty system, a production management system and other equipment management systems are integrated to build a complete and good working interface, electric transmission and transformation equipment monitoring defect multidimensional information is input, and by the aid of management modules of traverse connection, inner control monitoring and closed-loop tracking, the real-time operation states of the electric transmission and transformation equipment can be controlled, inquiring and statistical counting of various key information can be achieved, screening and tracking of family defects are achieved, and equipment health states can be monitored and analyzed.
Owner:STATE GRID CORP OF CHINA +2

Probability forecasting method and system of switch equipment faults

The invention provides a probability forecasting method and \system of switch equipment faults. The method comprises the following steps of: A) carrying out data processing on SF6 gas decomposition product detection data that the switch equipment has faults, and selecting a probability distribution which meets the requirements on relevance as a fault distribution; B) establishing an SF6 gas decomposition product probability model according to the selected fault distribution, and thereby predicting the probability that the switch equipment has faults. The system comprises a data processing module and a data modeling module, wherein the data processing module comprises a data counting module, a parameter estimating module and an error analyzing module; and the data modeling module comprises a fault distribution fitting module and a fault probability estimating module. By adoption of the method and the system, the SF6 gas decomposition product detection data in the equipment are processed, the fault probability of the equipment is predicted by using the established SF6 gas decomposition product probability model, and an effective basis is provided for the state judgment and evaluation, the fault diagnosis and the like for SF6 switch equipment.
Owner:CHINA ELECTRIC POWER RES INST +5

High-voltage switchgear monitoring system

The invention discloses a high-voltage switchgear monitoring system and relates to the technical field of switchgears. The high-voltage switchgear monitoring system comprises an information acquisition apparatus, a communication module, a cloud server and a mobile terminal, wherein the information acquisition apparatus monitors the voltage, current, insulation, humiture and breaker action in a high-voltage switchgear, and comprises a voltage acquisition module, a current acquisition module, a humiture sensor, a dust monitoring module and a gas sensor, the communication module transmits the information acquired by the information acquisition apparatus to the cloud server, the cloud server analyzes and processes the information acquired by the information acquisition apparatus to obtain result and sends the result to a mobile terminal, and the mobile terminal allows workers to receive information sent by the cloud server. The high-voltage switchgear monitoring system can realize real-time remote monitoring of a high-voltage switchgear. Effective monitoring can be achieved by monitoring a plurality of parameters in the high-voltage switchgear, and the operation state of the high-voltage switchgear can be known accurately.
Owner:合肥易美特建材有限公司

Safety fence system special for transformer substation gas insulated metal-enclosed switchgears

ActiveCN105133922AChange shapeApplicable to the needs of the job siteFencingBurglar alarmTransformerEngineering
The invention discloses a safety fence system special for transformer substation gas insulated metal-enclosed switchgears. The safety fence system comprises a safety fence body which comprises support rods, support frames, an extension-type railing and magnetic suction cups; the support frames are fixed to the lower ends of the support rods, multiple insertion holes are evenly distributed on the periphery of each support frame, the extension-type railing is movably connected with the support frames through the insertion holes, the extension-type railing is provided with railing clamps, and the magnetic suction cups are fixed on the railing clamps; transformer substation gas insulated metal-enclosed switchgear hooking loop covers are fixed on the support rods and hooked on sleeves of the transformer substation gas insulated metal-enclosed switchgears. The safety fence system further comprises an image gathering module which is arranged on the safety fence body and used for gathering images around the safety fence body within a certain distance and transmitting the images to a controller. By means of the safety fence system special for the transformer substation gas insulated metal-enclosed switchgears, a safety fence has an active prompt function under the environment that light rays at night are insufficient, and the safety of operating personnel and the switchgears is beneficially guaranteed.
Owner:DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1

Refrigerator

The invention discloses a refrigerator which comprises a refrigerator body, a door body, a display and control panel component and an induction system; the door body is mounted on the refrigerator body; the display and control panel component is mounted on the door body and is provided with a display screen; the display screen is provided with a plurality of functional touch control units which correspond to a plurality of functional icons; the induction device is used for inducting whether a user exists in a preset range or not; when the induction device inducts that a user exists in a preset range, the display screen, the functional touch control units and the functional icons lighten; the display brightness of each functional icon at the moment when one functional touch control unit corresponding to the functional icon is not triggered is different from the display brightness at the moment when the functional touch control unit is triggered; and when the induction system does not induct that a user exists in the preset range during a preset time, the display screen, the functional touch control unit and the functional icons are extinguished. The display brightness of a functional keystroke icon on the display screen of the refrigerator can be changed correspondingly according to the trigger state of one functional touch control unit corresponding to the functional keystroke icon.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD

PT intelligent resonance elimination device for power distribution network

InactiveCN104377676ADifferentiate single-phase groundingDistinguish between ferroresonant faultsElectrical testingEmergency protective arrangements for limiting excess voltage/currentSingle phaseControl switch
The invention discloses a PT intelligent resonance elimination device for a power distribution network. The PT intelligent resonance elimination device comprises a signal conditioning module, a data collecting module, a central processing unit, a sound-light alarming module, a resonance elimination device triggering module and a resonance elimination device body. The signal conditioning module collects a voltage signal and carries out lowpass filtering on the signal to eliminate the frequency aliasing phenomenon possibly caused by a signal with over-high frequency during spectral analysis; the data collecting module carries out A/D conversion on the voltage signal processed by the signal conditioning module; the central processing unit carries out data analysis on the voltage signal and sends the signal to the sound-light alarming module and the resonance elimination device triggering module; the sound-light alarming module can give out a sound-light alarm when a system has faults; the resonance elimination device triggering module sends out a trigger signal to control switching on and off of a thyristor of the resonance elimination device body; the resonance elimination device body comprises a damper electric reactor and an antiparallel silicon-controlled thyristor. By means of the PT intelligent resonance elimination device for the power distribution network, the ferromagnetic resonance fault can be effectively eliminated, a single-phase grounding fault and the ferromagnetic resonance fault can be effectively distinguished, and the sound-light alarm is given out.
Owner:STATE GRID CORP OF CHINA +3

LabVIEW-based health state intelligent monitoring system and method for large track traveling device

The invention relates to the field of heavy machine monitoring technologies, in particular to a LabVIEW-based health state intelligent monitoring system and method for a large track traveling device. The system and method are developed for overcoming the defects that the large track traveling device is bad in working environment, large in load bearing, and poor in lubrication protection and are used for monitoring parameters such as currents of a drive motor, power of the drive motor, the rotating speed of a drive wheel, tension force, the rotating speed of a weight supporting wheel shaft and the temperature of the weight supporting wheel shaft. The current health state of equipment is given according to the intelligent monitoring system, light and sound alarm is given to corresponding failure items, and failure sources are pointed out. The health state intelligent monitoring system is mainly composed of a drive wheel monitoring module (I), a guide wheel monitoring module (II), a weight supporting wheel monitoring module (III), a router, a computer and a displayer. The drive wheel monitoring module (I), the guide wheel monitoring module (II) and the weight supporting wheel monitoring module (III) are respectively arranged on corresponding positions of the large track traveling device and are connected with the computer in a cab through the Ethernet.
Owner:JILIN UNIV

On-line detection system for tension of steel wire rope for elevator

InactiveCN106629330AReal-time display of tension valueEasy tension adjustmentElevatorsElevator systemHand held
The invention discloses a real-time on-line detection system for tension of a steel wire rope for an elevator. The detection system comprises a cloud server, a sensor, an information collection board, an intelligent decision-making terminal, a hand-held monitor and an elevator system, wherein the sensor monitors the tension for dragging the steel wire rope in real time and online displays a numerical value of the tension received by the steel wire rope, so that all the tension for dragging the steel wire rope is conveniently adjusted to be uniform, the service life of the steel wire rope is prolonged, and the elevator running comfortableness is improved; by monitoring the change of the numerical value of the tension for dragging the steel wire rope in real time, whether there are persons in a car can be determined, and a weighing function of the elevator is realized; the intelligent decision-making terminal receives data, makes a local decision according to set logic, and controls the elevator to emergently stop running or stop running after the elevator stops nearby in an abnormal state, thereby avoiding sudden accidents; and the cloud server collects historical big data, performs comparison, analysis, judgment and depicts a change trend of the tension of the steel wire rope, and if the trend becomes bad, a preventive and targeted maintenance service can be performed, thereby improving a safety coefficient of elevator running.
Owner:上海峰景移动科技有限公司 +1

Unmanned management method and system for test equipment

The invention discloses an unmanned management method and system for test equipment. The system is formed by the connection of a plurality of information acquisition units with a server through a router. Each information acquisition unit comprises a sensor, a micro processing unit (MCU), a controller area network (CAN) module and a transmission control protocol (TCP)/Internet protocol (IP) chip. An acquired analog signal of test equipment is sent to the MCU by the sensor through an A/D interface, amplification, data processing and logic judgment are carried out on a digital signal, the processed digital signal is converted into a differential signal by the CAN module and sent to a CAN interface, and the differential signal is then received and analyzed by the TCP/IP chip and transmitted by a TCP/IP interface, so that the method for the uninterrupted real-time monitoring of the running state of the test equipment and failure alarm is realized. The signal of the test equipment is mainlytransmitted with the method of building a local area network through combining a CAN technology and a TCP/IP technology. The method has the advantages of high communication speed, good real-time property and simplicity for wiring, and solves the problems of limited number of network interfaces, complicated wiring and the like.
Owner:QIMING INFORMATION TECH

Manufacturing industry-oriented field process behavior abnormal behavior detection method

The invention relates to a manufacturing industry field process abnormal behavior detection method, which is mainly used for researching a detection method based on a behavior characteristic knowledgebase for manufacturing industry field process abnormal behavior detection, and is used for constructing a random forest abnormal detection model based on a random forest algorithm. According to the specific implementation method, PCA method dimension reduction is carried out on process data of an industrial field, feature selection is carried out by adopting an integrated rule tree model, and theprocess data is classified by adopting a random forest algorithm. Each path of the random forest corresponds to one rule, good interpretability is achieved, the classification accuracy is greatly improved, a large number of input variables can be processed, and even if process data contains missing values, the classification result can still reach high accuracy. A behavior characteristic knowledge base and a real-time emergency decision-making framework of an unknown behavior scene are fused, and abnormal behaviors are early warned in advance by predicting behavior detection of industrial field process data.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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