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88results about How to "Improve online rate" patented technology

Line-loss anomaly detection method for electric power measurement automation system

The invention provides a line-loss anomaly detection method for an electric power measurement automation system. The method comprises the steps of S1, acquiring a line loss daily fluctuation index and a line loss variation tendency index of each line through the calculation of a line loss data table; S2, respectively judging whether the line loss daily fluctuation index of each line exceeds a first threshold value or not and respectively judging whether the line loss variation tendency index of each line exceeds a second threshold value or not; S3, judging a line with the line loss daily fluctuation index thereof to exceed the first threshold value or the line loss variation tendency index thereof to exceed the second threshold value as a line loss abnormal line. According to the technical scheme of the invention, two abnormal conditions, namely the line loss mutation anomaly and the line loss variation tendency anomaly, can be found out based on the line loss daily fluctuation index and the line loss variation tendency index of each line. Meanwhile, through adjusting the above threshold values, the anomalies of different degrees can be found out. The number of daily abnormal lines can be adopted to evaluate the health degree of the entire power grid. Therefore, the finding sensitivity of the existing system for line loss anomalies is improved. The defect that the manual inspection and discovery is not timely can be overcome. The reasons for line loss anomalies can be further detected.
Owner:SHENZHEN POWER SUPPLY BUREAU

A system and method for multi-factor comprehensive evaluation of vehicle maintenance schedule balan scheduling

The invention discloses a multi-factor comprehensive evaluation vehicle maintenance plan balance scheduling system and a method, belonging to the technical field of vehicle maintenance. The schedulingmanagement module of the scheduling system of the invention is used for arranging and managing the annual plan, the monthly plan and the weekly plan of the vehicle overhaul; a workover management module, which is used for carrying out data processing on the workover process to form 12 workover processes that can be changed; vehicle health status evaluation module, which is used to evaluate the health status of the vehicle, from the vehicle reliability, key component detection parameters, life prediction and defect hidden trouble multi-dimensional vehicle health evaluation, to provide a basisfor the development of maintenance schedule and component replacement; the job management module is used for managing the maintenance job task formed according to the final maintenance plan. The invention adjusts the repair sequence and the repair time according to the actual situation, and scientifically and reasonably arranges the repair sequence and the repair time, which is favorable for improving the train line-up rate and improving the reliability and safety of the vehicle at the same time.
Owner:安徽云轨信息科技有限公司

Cracking furnace for cracking hydrocarbon steam to prepare ethylene

ActiveCN102050696AEven by forceImprove structural flexibilityHydrocarbon by hydrocarbon crackingMetallurgyEthylene
The invention relates to a cracking furnace for cracking hydrocarbon steam to prepare ethylene. In a radiation section of the ethylene cracking furnace, two-stroke unbranched reducing furnace pipes or branched reducing furnace pipes are adopted; the first-stroke furnace pipes are arranged in two rows; the second-stroke furnace pipes are arranged in a single row; the first-stroke furnace pipes and the second-stroke furnace pipes are positioned on three planes respectively; the two planes of the first-stroke furnace pipes are symmetric with the plane of the second-stroke furnace pipes; the three planes are parallel with one another, or the two planes of the first-stroke furnace pipes and the plane of the second-stroke furnace pipes form the same included angle and the upper end spacing is smaller than the lower end spacing; and the two-stroke furnace pipes are connected with one another through symmetric bent pipes or bent pipes and S-shaped pipe combined connecting pieces. The first-stroke furnace pipes and the second-stroke furnace pipes can adopt strengthened heat transfer member units according to conditions, so that the operation cycle of the cracking furnace and the service life of the furnace pipes can be further prolonged. The cracking furnace for cracking the hydrocarbon steam to prepare the ethylene has small size of the radiation section, contributes to reducing occupied area and saving investment, and can be applied to new construction of the cracking furnaces or energy expansion reformation of the cracking furnaces.
Owner:CHINA PETROLEUM & CHEM CORP +2

Metering automation system wireless communication failure prediction method

InactiveCN104751374AImprove online rateSolve the problem of communication failure predictionData processing applicationsPower gridTest vector
The invention provides a metering automation system wireless communication failure prediction method. The metering automation system wireless communication failure prediction method includes: dividing history communication quality data collected by a terminal into a training sample set and a testing set; converting features extracted from the training sample set into a training vector set; training the training vector set based on a logistic regression model so as to obtain weight parameter vectors of feature vectors, and thereby obtaining a prediction model for predicting metering automation terminal communication failures; selecting features identical with features extracted from the training sample set from the testing set so as to build a test vector set; evaluating the prediction model obtained through training according to the test vector set, and adjusting parameters of the prediction model according to a prediction result. The metering automation system wireless communication failure prediction method can analyze data of the various communication failures, actively predicts a failure probability of a terminal, and thereby indirectly improves online rate of the terminal, and furthermore can effectively solve problems in communication failure prediction in a power grid.
Owner:SHENZHEN POWER SUPPLY BUREAU

Household appliance networking method and system

InactiveCN110505629AImprove experienceSimplify the home appliance distribution network processAssess restrictionSecurity arrangementThe InternetMobile phone
The invention belongs to the technical field of intelligent household electrical appliance networking, and discloses a household electrical appliance networking method and system, and the method comprises the steps: obtaining AP hot spot information of surrounding WiFi, displaying two-dimensional code information, and transmitting the obtained AP hot spot information of the surrounding WiFi to a household electrical appliance body for networking; and carrying out WeChat scanning on the two-dimensional code to obtain binding information, and sending the binding information to a manufacturer server through the Internet so as to realize binding of the household appliance body and the WeChat account. By adopting the remote controller with the display function, the household appliance network distribution process is simplified in a mobile phone code scanning mode, and the user experience is improved. After the remote controller provided by the invention acquires the model information and the networking information, the networking is realized by scanning the two-dimensional code of the remote controller through the mobile phone. Convenience of household electrical appliance network distribution can be achieved with low cost, and the online rate of household electrical appliance networking is improved.
Owner:GREE ELECTRIC APPLIANCES INC

Data processing method and device based on sensor energy supply system

The invention provides a data processing method and device based on a sensor energy supply system. The sensor energy supply system comprises a spacer, at least one energy taking device, a boost energy taking device, an energy storage device and a management device. The method comprises the steps: obtaining first voltage data and first current data corresponding to each energy taking device, judging whether the first current value of each energy taking device is smaller than a current preset value or not, and if yes, starting the boost energy taking device, and obtaining second voltage data and second current data ; obtaining an energy supply output signal output by the management device in real time based on the first voltage data of all the energy taking devices and the third voltage data of the energy storage device; or obtaining an energy supply output signal output by the management device in real time based on the second voltage data of the energy taking device and the third voltage data of the energy storage device; and judging a working mode corresponding to the sensor according to the type of the energy supply output signal, and operating the sensor in the corresponding working mode according to a judgment result.
Owner:GUANGXI POWER GRID CO LTD NANNING POWER SUPPLY BUREAU +1

Landfill leachate treatment process based on PMVR-ZLD

The invention belongs to the technical field of garbage wastewater treatment, and particularly relates to a landfill leachate treatment process on PMVR-ZLD. The process comprises the following steps of: stock solution collection, pretreatment, preheating, evaporation separation, advanced treatment, solidification and the like. According to the invention, a coagulating sedimentation system is adopted in pretreatment, so that the problem of unstable operation of the device caused by blockage is effectively solved; an MVR forced circulation evaporation separation system is adopted to perform wastewater evaporation on a leachate, so that the problems of heat transfer coefficient reduction, energy consumption increase, evaporator blockage and shutdown are avoided; the advanced treatment systemis used for treating evaporated effluent, so that the cost is greatly reduced; by adopting a landfill leachate zero-emission treatment system, the leachate is subjected to evaporation separation, generated crystals are solidified into bricks and then subjected to landfill treatment, the quality of inflow water is not affected, and the landfill leachate zero-emission treatment system has more advantages compared with a concentration recharge mode adopted for leachate wastewater treatment at present.
Owner:清源环境建设股份有限公司

Debugging device applied to pairing of negative control terminal and ammeter

The invention provides a debugging device applied to the pairing of a negative control terminal and an ammeter. In the debugging device, an ammeter calibration instrument is arranged in a support, a mounting plate is arranged in the surface of the support and is fixedly connected with two ammeter connection frames, namely a first ammeter connection frame and a second ammeter connection frame, and the first ammeter connection frame is respectively connected with the second ammeter connection frame and an ammeter calibration instrument; an ammeter to be debugged and the negative control terminal are fixedly arranged on the mounting plate of the support, the first ammeter connection frame is provided with the ammeter, the second ammeter connection frame is provided with the negative control terminal, the first ammeter connection frame, the second ammeter connection frame and the ammeter calibration instrument are connected by conductors, and the ammeter calibration instrument is connected with a power supply. According to the debugging device applied to the pairing of the negative control terminal and the ammeter, disclosed by the invention, by regulating the current of the ammeter calibration instrument, the regular use states of the ammeter and the negative control terminal are simulated, the regular functions of the ammeter and the ammeter calibration instrument are tested, the working time and the working load of a repeated field debugging operation are reduced, and the terminal on-line rate is improved.
Owner:STATE GRID CORP OF CHINA +1

High-protection modular distribution box

The invention relates to the technical field of distribution boxes, and particularly relates to a high-protection modular distribution box. The high-protection modular distribution box comprises a distribution box, a display module, an acquisition module, a security monitoring terminal, an alarm module, a data analysis module, a network server, a storage module, a database, a water level monitoring module, a feedback module, a distribution transformer and an infrared temperature measurement module, wherein the distribution box is connected with the display module, the distribution box is connected with the acquisition module, the acquisition module is connected with the security monitoring terminal, the security monitoring terminal is connected with the alarm module, the alarm module is connected with the distribution box, the distribution box is connected with the data analysis module, the distribution box is connected with the network server, the distribution box is connected with the storage module, and the storage module is connected with the database. The high-protection modular distribution box provided by the invention has the advantages of convenience in operation and maintenance information state analysis, monitoring and early warning, fault research and judgment, auxiliary decision, risk management and control and intelligent resource allocation.
Owner:南京白云瑞来科技有限公司

Pre-washing technology and device used for cryogenic separation of synthesis gas

The invention discloses a pre-washing technology and device used for cryogenic separation of synthesis gas. The pre-washing technology includes the steps that after the synthesis gas is pre-cooled, pre-washing is conducted through a pre-washing agent to remove unsaturated hydrocarbon and macromolecule saturated hydrocarbon, and finally purified raw material synthesis gas is obtained; the purifiedraw material synthesis gas is subjected to follow-up synthesis gas cryogenic separation; the ice point of the pre-washing agent is lower than the operation temperature of the follow-up synthesis gas cryogenic separation technology. On the basis of current methane washing, carbon monoxide washing and partial condensation synthesis gas cryogenic separation technologies, the novel pre-washing technology used for synthesis gas cryogenic separation is adopted, and unsaturated hydrocarbon and macromolecule saturated hydrocarbon in the raw material synthesis gas are removed in advance to be preventedfrom entering the downstream and blocking downstream equipment or downstream pipelines. The on-line rate of a cold box for the cryogenic separation technology is increased, and meanwhile the safety of the cold box can be improved to solve the problem that the cold box is blocked under freezing.
Owner:BEIJING PETROCHEM ENG

Multi-source data fusion-based intelligent terminal and method for power internet of things

The invention discloses an electric power Internet of Things smart terminal and method based on multi-source data fusion, and relates to the technical field of electric power Internet of Things smart terminals. In order to solve the problems that most power terminals at present cannot realize data interconnection and intercommunication of an intelligent electric meter, a low-voltage circuit breaker, a reactive power compensation device, an electric vehicle charging pile, a water-gas-heat metering device, a user smart home and the like, the data acquisition range is narrow, comprehensive perception cannot be realized, and the intelligent level is low. According to the power Internet of Things smart terminal and method based on multi-source data fusion, on the basis of data received by the cloud platform, intelligent power distribution, intelligent power utilization and smart park are established, comprehensive energy service is developed, accurate perception conforming to a user is jointly achieved, the deep perception and accurate control requirements of a household appliance level are met, and the user experience is improved. A technical scheme is provided for accurate operation monitoring, intelligent control and source network load cooperative operation of electric equipment, and the current problems of electricity utilization safety and energy consumption management are solved.
Owner:王焱

Intelligent operation and maintenance terminal for video and environment monitoring station end system of transformer substation

The invention discloses an intelligent operation and maintenance terminal of a transformer substation video and environment monitoring station end system, which is provided with a transformer substation video monitoring system, a comprehensive data network, a transformer substation operation and maintenance terminal, an intelligent electric box control system and an intelligent platform, the integrated data network performs data transmission; the substation operation and maintenance terminal carries out station-end network diagnosis, station-end data flow monitoring, station-end equipment operation monitoring, network management direct-current power supply monitoring, video image abnormity diagnosis and RPU video integrity diagnosis; the intelligent electric box control system controls the restart of the transformer substation video monitoring system; the intelligent platform displays the processing data of the substation operation and maintenance terminal and collects the operation and maintenance condition of the intelligent electric box control system. Real-time monitoring and intelligent operation and maintenance of the transformer substation video monitoring system are realized, the stability of the transformer substation video monitoring system is improved, the skill requirements of maintenance personnel are reduced, the power transformation video maintenance efficiency is improved, and the operation and maintenance investment is reduced.
Owner:GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU

Heavy oil supercritical extraction multistage parallel separation treatment system and treatment method

The invention relates to a heavy oil supercritical extraction multistage parallel separation treatment system. The system comprises a feeding unit, a solvent mixing unit and N groups of supercriticalextraction separation units which are arranged in parallel. Each supercritical extraction separation unit comprises an asphalt separation tower, an asphalt stripping tower, a deasphalted oil separation tower and a deasphalted oil stripping tower. Each stage of mixer is connected to the asphalt separation tower of the corresponding supercritical extraction separation unit, a raffinate phase outletat the bottom of each asphalt separation tower is connected with the corresponding asphalt stripping tower, an extract phase outlet at the top of each asphalt separation tower is connected to the corresponding deasphalted oil separation tower, and a material outlet at the bottom of each deasphalted oil separation tower is connected with the corresponding deasphalted oil stripping tower. Top extraction solvent outlets of the asphalt stripping towers and the deasphalted oil stripping towers are connected to the solvent mixing unit through an extraction solvent recovery unit. According to the heavy oil supercritical extraction multistage parallel separation treatment system and method, parallel multi-stage extraction is achieved, various deasphalted oil or asphalt products of different specifications can be produced at the same time, meanwhile, the operation is stable, and the energy consumption is low.
Owner:张家港保税区慧鑫化工科技有限公司
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