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103results about How to "Strong technical support" patented technology

Communication system based on frameless network architecture and networking method

The invention relates to the technical field of wireless communication, in particular to a communication system based on a frameless network architecture and a networking method. According to the communication system based on the frameless network architecture and the networking method, a user-centered service set formed by antenna elements is constructed through new resource dimensionalities, namely the antenna elements and calculating and processing elements, and wireless resource management, mobile management, service unloading management, extensive coordination management between the antenna elements of different types and the like are carried out according to the service set. A traditional community setting and regional dividing mode is eliminated by the communication system based on the frameless network architecture and the networking method, then requirements of user terminals are taken as the center, and users have a dominant right of resource allocation. The wireless network networking problem when a large number of base stations of different kinds coexist and are intensively allocated is solved. Therefore, powerful technical support to the development of mobile wireless communication technique is supplied by the communication system based on the frameless network architecture and the networking method.
Owner:BEIJING UNIV OF POSTS & TELECOMM

System and method for failure predication and health management of pump storage unit

The invention discloses a system and method for failure predication and health management of a pump storage unit. The system for failure predication and health management of the pump storage unit comprises an equipment monitoring module, a processing center module and a decision support module; implementing of the method comprises the steps that a state monitoring sensor and built-in self-checking equipment are utilized to monitor the operating states of sub systems of the pump storage unit in real time, and state characteristic data of the sub system of the pump storage unit are obtained; the state characteristic data of the sub systems are processed and analyzed, and a maintenance decision suggestion of the pump storage unit is obtained; and by utilizing the maintenance decision suggestion of the pump storage unit, and through comprehensive analysis, failure predication and health management of the pump storage unit are achieved. According to the system and method for failure predication and health management of the pump storage unit, the system is perfect and reasonable, the method is effective and practicable, the system and the method can be used for implementing preventative state maintenance on the pump storage unit, and the overall operation level of the pump storage unit is enhanced.
Owner:HUAZHONG UNIV OF SCI & TECH

Data processing method for forecasting heavy precipitation weather

InactiveCN104298851AExcellent forecastObjective forecastSpecial data processing applicationsMoisture indexComputer science
The invention provides a data processing method for forecasting heavy precipitation weather. The data processing method for forecasting the heavy precipitation weather comprises the steps that firstly, thermodynamic factors, dynamic factors and a moisture index influencing occurrence of heavy precipitation are collected; secondly, according to the precipitation occurrence and development nonlinear theory, the thermodynamic factors, the dynamic factors and the moisture index are integrated, so that the physical quantity index THP is obtained; finally, according to the synoptic situations at 500hPa and at 700hPa of upper air, whether a good lifting mechanism exists or not is judged, and then the belt of the heavy precipitation and the magnitude of the heavy precipitation can be forecasted, wherein the area with a large value of the index THP is the large-probability area of precipitation in next six hours, the maximum value of the THP corresponds to the maximum amount of precipitation in next six hours, when the value of the THP is increased along with time, the amount of precipitation is increased, and otherwise the amount of precipitation is reduced. By the adoption of the data processing method for forecasting heavy precipitation weather, the belt of heavy precipitation and the development and change of precipitation can be more objectively forecasted, the magnitude of precipitation can be estimated quantitatively, and automatic operation can be achieved through a computer.
Owner:LANZHOU UNIVERSITY

Three-dimensional civil defense geographic information service system

The invention discloses a three-dimensional civil defense geographic information service system. The three-dimensional civil defense geographic information service system comprises a mobile terminal and a civil defense commanding system. The mobile terminal is used for collecting data and transmitting the data to the civil defense commanding system. The civil defense commanding system comprises a basic database, a database processing module, a visual data management module, a wireless dispatching module and a civil defense emergency commanding and dispatching module. The basic database comprises fundamental space layer data and civil defense service layer data. The database processing module is used for storing, increasing, modifying and deleting the data in the database. The visual data management module is used for displaying a structure in an underground space of a command post in the system through a three-dimensional model. The wireless dispatching module supports basic cluster services such as single calling, group calling, broadcast calling and emergency calling. The civil defense emergency commanding and dispatching module comprises an emergency event analysis module, an emergency plan modeling module and an emergency plan automatic monitoring and early warning module.
Owner:NANTONG BEICHENG SCI & TECH ENTREPRENEURIAL MANAGEMENT +1

Coal mine distributed collaborative one map system and collaborative management method

The invention discloses a coal mine distributed collaborative one map system and a collaborative management method. The collaborative system comprises a service interface layer, a service collaboration layer and a data storage layer; the service interface layer comprises mine maps of different majors of coal mines and a service interface of attribute processing, the service collaboration layer corresponds to each professional service interface comprising a corresponding mine map and an interaction interface of attribute management, and comprises a user authentication module, a graphics and attribute processing cooperation module, a searching service module and a map service module; and the data storage layer is used for storing coal mine map data, and comprises an index database, a tile library, and a database. According to the technical scheme, a unified management platform for multi-major data stratification is established, dynamic real-time update and sharing of various types of data are realized, the consistency and timeliness of data in different majors and different users are insured, the digital efficiency and production efficiency of the mine are greatly improved, and a powerful and effective technical support for coal mine safety management is provided.
Owner:BEIZHING LONGRUAN TEKNOLODZHIS INK +1

Substation fire-fighting robot autonomous operation control method and system

The invention discloses a substation fire-fighting robot autonomous operation control method and system, and the method comprises the steps: building a substation three-dimensional data model, arranging wireless AP equipment at a plurality of fire-fighting medium supply points in a substation, and constructing a wireless network in the substation; positioning the fire-fighting robot according to the wireless network; determining the position of the optimal fire-fighting medium supply point, and planning the optimal path from the fire-fighting robot to the abnormal equipment; controlling the fire-fighting robot to automatically run to the position of a fire-fighting medium supply point, and completing automatic butt joint of fire-fighting hoses; and controlling the fire-fighting robot to automatically run near the abnormal equipment, and automatically calculating the optimal spraying angle and spraying flow according to the position of the ignition point. The whole set of closed-loop operation process that the substation fire-fighting robot finds a fire, arrives at a place, is automatically connected with fire-fighting medium supply equipment, selects an optimal operation position and automatically extinguishes fire can be achieved, and the blank in the technical field of automatic fire-fighting operation of the substation robot is filled.
Owner:STATE GRID INTELLIGENCE TECH CO LTD

Snowflake grid type grid construction method suitable for urban medium voltage distribution networks

The invention relates to a snowflake grid type grid construction method suitable for urban medium voltage distribution networks. The method comprises the following steps: selecting equipment of a snowflake grid type grid for constructing the 10kV medium voltage distribution networks; constructing a main gird of the snowflake grid type grid consisting of a feeder line cluster; connecting the equipment on the main grid; and constructing a load transfer passage to form the snowflake grid type grid. The method has the effects that each feeder line in the target grid structure formed by adopting the method is reasonably segmented and contacted, has automatic detection, isolation and network reconstruction for failures and self-healing capacity of power restoration, and can meet the power supply requirement of various types of users, so that the utilization efficiency of power distribution equipment is improved, optimal allocation of resources and optimal capital efficiency are realized, the benefit efficiency of the grid is fully developed, and thus the target grid structure is more scientific and complete. The method is easy to master and operate, simple and clear, and is convenient for actual operators to master skillfully.
Owner:STATE GRID TIANJIN ELECTRIC POWER +1

Power transmission line landslide body stability calculation method

The invention discloses a power transmission line landslide body stability calculation method comprising the following steps: using laser to scan a power transmission line area in a three-dimensionalmanner, obtaining point cloud data of measured landslide body surface information, and carrying out point cloud simplified filtering processing; establishing a three-dimensional geologic model of a landslide body, performing numerical simulation and stability calculation on the landslide body under natural and rainstorm working conditions, calculating a safety coefficient by utilizing a strength reduction method, obtaining various cloud charts and curve charts such as stress, strain and displacement through the safety coefficient of the landslide body, and comprehensively evaluating the stateof the single landslide in a line area. According to the method, the average value of stability coefficients is calculated by combining laser scanning point cloud data and finite element analysis andselecting a landslide body cross section to evaluate the safety and stability of the single landslide in the line area; and a judgment result can be used as a line disaster safety prevention and control reference basis, and more powerful technical support is provided for later power transmission line channel design and construction.
Owner:SGCC GENERAL AVIATION +2

Power distribution network investment method based on reliability planning

A power distribution network investment method based on reliability planning includes the steps of determining a planning area, analyzing weak links of a power distribution network, setting reliability targets by comparing power supply zones, arranging planning projects according to the weak links of the power distribution network, calculating scheme reliability of the planning projects, judging whether the scheme reliability meets the set reliability targets or not, determining a scheme with the lowest unit investment, determining the planning projects and the like. The power distribution network investment method based on reliability planning has the advantages that the different reliability targets are set according to different zone characteristics, the projects of the power distribution network are arranged reasonably according to investment sensibility of different optimization measures of the weak links of the power distribution network, the investment orientation is controlled, the pertinence and effectiveness of investment of the power distribution network are increased, and therefore the power distribution network investment method based on reliability planning is more scientific and comprehensive. The power distribution network investment method based on reliability planning provides beneficial reference for investment of the power distribution network by power distribution network planning personnel, provides powerful technical support for later power distribution network planning work and is easy to master and operate, and people can easily understand setting of the reliability targets of the power distribution network, ranking of the planning projects and other aspects.
Owner:STATE GRID CORP OF CHINA +1

Hydraulic leakage-proof control device

The invention relates to a hydraulic leakage-proof control device and belongs to the technical field of hydraulic detecting equipment. The hydraulic leakage-proof control device is used for monitoringand controlling oil leakage of a hydraulic cylinder. According to the technical scheme of the hydraulic leakage-proof control device, a monitoring work part comprises a first three-position and four-way reversing valve, a first leakage-proof device and a second leakage-proof device; two external-connection end openings of the first three-position and four-way reversing valve are connected with ahydraulic oil pipeline, and two output end openings of the first three-position and four-way reversing valve are connected with oil inlets in the two ends of a piston cylinder of the monitored hydraulic cylinder through hydraulic oil pipelines correspondingly; and the first leakage-proof device and the second leakage-proof device are mounted in hydraulic oil pipelines at the two ends of the hydraulic cylinder correspondingly. Parts, such as displacement sensors, electronic cabins, magnetic rings and measuring rods, of the leakage-proof devices can monitor the oil amount of hydraulic oil in thehydraulic cylinder, and when oil leakage occurs to the hydraulic cylinder, connection between the leakage-proof devices and a whole system can be automatically cut off; and the hydraulic leakage-proof control device creatively adopts the leakage-proof devices to monitor the oil amounts in different cavity bodies of the monitored hydraulic cylinder, and whether oil leakage occurs to the hydrauliccylinder or not can be accurately judged.
Owner:宣化钢铁集团有限责任公司

Rated ratio rotating speed calculation method for horizontal shafg single-rotating-wheel double-nozzle bucket type water turbine

ActiveCN110704982AMeet the requirements of hydropower engineeringStrong technical supportGeometric CADHydro energy generationWater turbineStructural engineering
The invention relates to the field of hydropower station water turbines, and discloses a rated ratio rotating speed calculation method for a horizontal shaft single-rotating-wheel double-nozzle buckettype water turbine, which is used for more reasonably calculating the rated ratio rotating speed of the horizontal shaft single-rotating-wheel double-nozzle bucket type water turbine so as to meet the requirements of new hydropower engineering. The method comprises the following steps: determining a rated water head Hr of a to-be-calculated horizontal shaft single-runner double-nozzle bucket turbine; calculating the rated specific speed of a single nozzle according to a rated specific speed calculation formula of the single nozzle of the horizontal shaft single-runner double-nozzle bucket turbine; and calculating the rated ratio rotating speed nsr of the horizontal shaft single-rotating-wheel double-nozzle bucket water turbine according to a rated ratio rotating speed calculation formulaof the horizontal shaft single-rotating-wheel double-nozzle bucket water turbine. The method is suitable for calculating the rated specific speed of the horizontal shaft single-runner double-nozzle bucket turbine.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Half-wavelength power transmission line power fluctuation overvoltage optimization control method and device

The invention provides a half-wavelength power transmission line power fluctuation overvoltage optimization control method and device. The half-wavelength power transmission line power fluctuation overvoltage is defined for the first time and the characteristics of the power fluctuation overvoltage are determined. Meanwhile, optimization control of the half-wavelength power transmission line powerfluctuation overvoltage can be finally realized through the auxiliary control strategy and the lightning arrester uniform configuration strategy and differential configuration strategy. The problem of half-wavelength power transmission system power fluctuation overvoltage can be effectively solved and safe operation of the half-wavelength power transmission system can be guaranteed. The durationof the power fluctuation overvoltage can be shortened by the auxiliary control strategy and the amplitude of the power fluctuation overvoltage can be reduced so that the absorbed energy of the lightning arresters along the half-wavelength power transmission line can be reduced, the configuration number of the lightning arresters along the half-wavelength power transmission line can be reduced, configuration of the lightning arresters can be optimized and the configuration cost of the lightning arresters can be reduced.
Owner:CHINA ELECTRIC POWER RES INST +3

Vertical lifting and horizontal transferring system for fish collection box

The invention discloses a vertical lifting and horizontal transferring system for a fish collection box. The system comprises a vertical support frame, wherein a top cover is arranged at the top end of the vertical support frame; a transverse support frame is arranged in the middle of the vertical support frame; a movable notch is formed in the middle of the transverse support frame; winch rails are mounted at the top of two sides of the movable notch; a transfer trolley is arranged on the winch rails; a winch is mounted on the transfer trolley; the bottom end of the winch is connected with a sling; a lifting hanger is mounted at the tail end of the sling; a bottom frame is arranged on the surface of an upper platform; trolley rails are mounted at the tops of a lower platform and the bottom frame; the transfer trolley is arranged on the trolley rails; a fish collection box matched with the lifting hanger is arranged on the transfer trolley. According to the system disclosed by the invention, negative influence of development of water resources and hydropower engineering on the aquatic environment is effectively relieved, a powerful science and technology support is provided for building environmental-friendly water resources and hydropower engineering, and the economic, social and environmental benefits can be remarkable.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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