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61 results about "City block" patented technology

A city block, urban block or simply block is a central element of urban planning and urban design. A city block is the smallest area that is surrounded by streets. City blocks are the space for buildings within the street pattern of a city, and form the basic unit of a city's urban fabric. City blocks may be subdivided into any number of smaller land lots usually in private ownership, though in some cases, it may be other forms of tenure. City blocks are usually built-up to varying degrees and thus form the physical containers or 'streetwalls' of public space. Most cities are composed of a greater or lesser variety of sizes and shapes of urban block. For example, many pre-industrial cores of cities in Europe, Asia, and the Middle East tend to have irregularly shaped street patterns and urban blocks, while cities based on grids have much more regular arrangements.

Street center line extraction method

ActiveCN108830897AAccurate locationFlat shapeImage analysisGeometric networksCity block
The invention discloses a street center line extraction method. A spatial topological relation of point, line and plane objects in a geometric network of a street is built by building a street block surrounded by street planes, so as to provide start and stop reference conditions for the extraction of a street center line. The method comprises the following steps: acquiring the street block according to the street planes; acquiring adjacent street blocks of each street block; sequencing the adjacent street blocks according to an anticlockwise direction; screening out a street block having a shared street with the original street block from the adjacent street blocks; building a polygonal segmental arc topology of a road network according to whether the shared street exists between the street blocks or not, and generating an initial center line; correcting the polygonal segmental arc topology according to the initial center line; building a complete topology among points, lines and planes according to the corrected polygonal segmental arc topology, and regenerating a center line; and finishing the center line at an intersection. The street center line extraction method solves the problem in extraction of the street center line from vector data of the street planes and can acquire a topological relation of the road network; and a center line extraction result has the advantages of precise position and smooth shape.
Owner:SOUTHEAST UNIV

Dynamic forecasting method for street tree city block wind disaster

The invention discloses a dynamic forecasting method for a street tree city block wind disaster. The method comprises the following steps of: firstly, acquiring a wind speed acted on street trees to provide a necessary condition for street tree wind disaster damage analysis, constructing a fine forecasting technique of a block wind environment, and forecasting a horizontal wind speed acted on each street tree to provide a necessary condition for structural analysis; secondly, constructing a wind disaster damage model of the street trees, and implementing the damage analysis of the wind environment on the street trees based on the characteristic parameters of the street trees and the wind speed; and finally, forecasting the wind disaster damage level of the block street trees according to the damage level estimation of the street trees, and dynamically displaying, querying and analyzing the forecasting result so as to realize forecasting of city block street tree wind disaster loss. The established dynamic forecasting technology for the city block street tree wind disaster damage has guide effect on forecasting and early warning of the street tree wind disaster of an urban typical functional area, is expected to enhance the wind disaster dealing technology and capacity of the modern city, and provides a support for wind disaster defense and decision.
Owner:上海市浦东新区气象局

Urban block space form comprehensive evaluation method based on a fuzzy mathematics theory

The invention discloses an urban block space form comprehensive evaluation method based on a fuzzy mathematics theory, and belongs to the field of urban planning. Aimed at the urban form assessment problem that multi-angle, multi-parameter and clear definition of good and bad standards and methods are not realized, the invention proposes to comprehensively plan a spatial intensity characteristic value and a spatial structure characteristic value by an urban form fuzzy coefficient (UFI) based on a Kaempfer-Richi environmental behavioristics theory; And by integrating the value judgment of the city morphology theory and the connotation of each characteristic value, a method for judging the quality is provided for each characteristic value index with the ambiguity characteristic so as to realize the quantitative comparison and quality analysis of the city morphology difference of the block. Results show that the UFI value has certain correlation with each characteristic value of the UFI value, local morphology and spatial integrity characteristics of the block can be comprehensively reflected, the overall experience of people on the spatial morphology of the block is expressed, and objectivity and feasibility are achieved. The invention provides an effective way for comprehensive and quantitative analysis of urban morphological characteristics.
Owner:BEIJING UNIV OF TECH

City block function zoning method based on multi-factor spatial clustering

ActiveCN104679951AReasonable functional divisionOvercome the lack of relying on experienceSpecial data processing applicationsCorrelation analysisLand use
The invention discloses a city block function zoning method based on multi-factor spatial clustering. The city block function zoning method comprises the following steps of firstly determining influence factors of a region spatial development framework, and then zoning influence ranges of the influence degree and the range attenuation mode on surrounding regions by each factor; carrying out correlation analysis on spatial influence factors, and judging whether spatial correlation relationship of different factors meets the conditions of space dimensionality reduction or not; then carrying out dimensionality reduction on multi-element data, and summarizing the various influence factors into a plurality of main factors which are spatially and regularly distributed through calculation; finally, judging basic characteristics of each region type according to standard deviation multiple of an average value of the main factors and initial spatial influence factors in each region type and a total average value of the main factors and the initial spatial influence factors in a target region, and determining city block function zoning. According to the city block function zoning method disclosed by the invention, summarizing and extracting on land use arrangement are carried out by taking objective evaluation as a basis by virtue of commonly-used metering analysis methods such as correlation analysis, main factor analysis and clustering analysis, and thus the city block function zoning can be more reasonable.
Owner:TONGJI UNIV +1

Urban catchment potential area identification method

The invention discloses an urban catchment potential area identification method. The method comprises the steps of firstly establishing a digital elevation model of an area where a project is located,and using a hydrological tool for dividing catchment potential areas on the basis of the digital elevation model; counting the area of the water catchment potential areas and encoding the water catchment potential areas; classifying the underlying surfaces of the water catchment potential areas, simulating water catchment in different rainfall recurrence periods by applying an SWMM urban rainfallflood management model, estimating the water amount of each water catchment potential area, identifying water catchment ranges of the water catchment potential areas in the different rainfall recurrence periods, and carrying out verification by combining Civil3D software at the same time. The method takes the dynamic balance of water collection and water utilization of an urban sponge system as aguide, takes a block as a unit to divide urban catchment potential areas, extracts the site hydrological characteristics by constructing a site three-dimensional model, and calculates and verifies the site runoff and confluence conditions by utilizing a rain flood management model and Civil3D software. According to the present invention, an auxiliary tool is provided for the sponge city planningand designing, and the scientificity and the working efficiency of the sponge city planning and designing are improved.
Owner:SOUTHEAST UNIV

High-rise fire-fighting multi-unmanned aerial vehicle cooperative path planning method in urban block environment

PendingCN112327939ARealize dynamic obstacle avoidanceImprove securityTarget-seeking controlCity blockSimulation
The invention discloses a high-rise fire-fighting multi-unmanned aerial vehicle cooperative path planning method in an urban block environment, and the method comprises the steps: building a three-dimensional environment model of an urban block through employing a grid method, and screening the three-dimensional environment model, and obtaining a flying region; searching and screening a flying area by using a three-dimensional A * algorithm, and planning a global reference path; using a sensor carried by the high-rise fire-fighting unmanned aerial vehicle for collecting environment informationin real time and updating the three-dimensional environment model in real time, carrying out online local path planning through a particle swarm optimization algorithm, determining whether an unknownobstacle appears on a current path or not, and determining whether the high-rise fire-fighting unmanned aerial vehicle needs dynamic obstacle avoidance or not. In addition, by setting the minimum safety distance, cooperative flight of the multiple high-rise fire-fighting unmanned aerial vehicles is achieved. According to the method, cooperative path planning and autonomous flight of the high-risefire-fighting unmanned aerial vehicle are realized by using a hybrid algorithm, the path planning is reasonable, the response speed is high, obstacles are flexibly avoided in the flight process, andhigher safety is achieved.
Owner:GUANGDONG UNIV OF TECH

Urban block energy consumption time-varying graph set construction method, device and equipment and storage medium

The invention discloses an urban block energy consumption time-varying graph set construction method and device, equipment and a storage medium, which are used for solving the technical problem that an existing building energy consumption analysis method does not consider the influence of external climatic factors. The method comprises the following steps of dividing a preset target area into a plurality of local climate subareas, and counting surface morphological characteristic parameters of each local climate subarea, acquiring microclimate parameters of a local climate subarea, according to the microclimate parameters, calculating unit area building energy consumption values of typical weather days of various seasons of various preset building types, obtaining building distribution and a building type proportion in the local climate partition, calculating a unit area hourly energy consumption value and a unit area all-day energy consumption value of the building in the local climate partition based on the building distribution, the building type proportion and the unit area building energy consumption value, and generating a building energy consumption time-varying graph set of the target area according to the unit area hourly energy consumption value and the unit area all-day energy consumption value of the typical weather day of each season of each local climate subarea.
Owner:GUANGDONG UNIV OF TECH

Auxiliary measuring device and measuring method of urban wind environment multi-point sampling

The invention discloses an auxiliary measuring device and measuring method of urban wind environment multi-point sampling. The auxiliary measuring device comprises a movable timing-type wind measurement instrument, an affiliated GPRS device and an affiliated data memory. In measurement, urban blocks are used as basic units, and wind environment measuring points are arranged on the height of pedestrians; the auxiliary measuring devices are arranged and numbered according to the set wind environment measuring points, and the setting of measured parameters is simultaneously completed; the auxiliary measuring devices automatically measure wind environment data and geographical coordinate data according to the measured parameters; and after the measurement is completed, all wind environment data and geographical coordinate data are gathered, data entry is carried out with the measuring point numbers serving as identification marks, and a panel database of the urban wind environment is formed. According to the invention, the defects such as low efficiency, high cost and rough precision of manual wind environment measurement are effectively avoided, and a high-efficiency, intelligent and comprehensive method for collecting large-sample, large-range, high-precision and multi-dimensional data is provided for urban large-scale wind environment analysis, monitoring, programming and layout optimization.
Owner:SOUTHEAST UNIV

Block hot and humid environment optimization method

The invention relates to a block hot and humid environment optimization method which comprises the steps of three-dimensional modeling, data collection, software simulation, hot and humid environment evaluation, optimization design and the like, evaluation is carried out based on block form and thermal comfort, so that an overall evaluation result of the block hot and humid environment is obtained, improvement of the block hot and humid environment is taken as an optimization target, the evaluation result is combined to give specific optimization strategies and measures in the process of urban block design with climate adaptability, and positive suggestions are provided for creating a green block; according to the method, the quality of the hot and humid environment of the block can be objectively and effectively evaluated from multiple different dimensions, and the quality of the hot and humid environment of the block can be more accurately judged, so that an urban optimization method is specifically provided, the comfort and safety of the outdoor hot and humid environment are improved, the energy consumption and carbon emission of a building are effectively reduced, actual development, construction and transformation of the block are guided, and green and sustainable development of the city is achieved.
Owner:SOUTHEAST UNIV
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