CN105737971A - City noise 3D digital map manufacturing method - Google Patents
City noise 3D digital map manufacturing method Download PDFInfo
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- CN105737971A CN105737971A CN201610078194.6A CN201610078194A CN105737971A CN 105737971 A CN105737971 A CN 105737971A CN 201610078194 A CN201610078194 A CN 201610078194A CN 105737971 A CN105737971 A CN 105737971A
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The present invention discloses a city noise 3D digital map manufacturing method. The method comprises the steps of (1) recording the city spatial form data via a city spatial form module; (2) acquiring and processing the instant sound source information via a noise instant acquisition module, and establishing a sound source instant acquisition database; (3) carrying out the city noise three dimensional simulation on the city spatial form data and the sound source instant acquisition database via a noise three dimensional information simulation and display module, and outputting a city noise three dimensional map. The city noise 3D digital map manufacturing method of the present invention combines the sound environment data information and a computer database based on a GIS and a city coordinate system, carries out the visual representation on the noise that can not be observed by the naked eyes by the data translation, dynamically displays the needed data via a computer, can obtain the needed information visually and rapidly, and facilitates the researches of reducing the city noise, improving the city environment quality, guiding the traffic adjustment and establishing a traffic quiet zone.
Description
Technical field
The present invention relates to a kind of city noise 3D numerical map manufacture method, belong to 3D numerical map method for designing.
Background technology
Along with constantly accelerating of China's Development of China's Urbanization and developing rapidly of city, environmental problem increasingly becomes the major issue in urban development, hampers the development of urban sustainable development.Sound pollution and water, air, solid waste pollution is also called four big public hazards of Urban Environmental Problem, city noise problem is one of environmental problem of facing of current city development, drastically influence the daily life of urbanite, both at home and abroad city noise is predicted, the control of noise and protection conduct extensive research, origin to noise, propagate, control the achievement existing more with abatement, but less focus on Urban Acoustic Environment and Urban Spatial Morphology, the relation that influences each other between space layout, the city noise 3D numerical map more lacking the acoustic environment based on city space makes and Display Technique.
The simulation of current Noise map is mostly derived from American-European research system and laws and regulations requirement with drawing, it is mainly based upon some computing formula noise is calculated, this method from noise, have ignored city space its own shape to effect of noise thus the degree of accuracy of Noise map.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of city noise 3D numerical map manufacture method, noise circumstance data are mapped in data base by different figure layers, by the noise situations under varying environment factor and Urban Spatial Morphology clearly, output display intuitively, contribute to the research of city noise abatement and traffic calming zone.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of city noise 3D numerical map manufacture method, comprises the steps:
(1) by Urban Spatial Morphology module record Urban Spatial Morphology data；
(2) by noise instantaneous acquiring module instant sound source information it is acquired and processes, setting up sound source instantaneous acquiring data base；
(3) by the simulation of noise three-dimensional information and display module Urban Spatial Morphology data and sound source instantaneous acquiring data base carried out the three-dimensional simulation of city noise, and exports city noise three-dimensional map.
Described step (1), by Urban Spatial Morphology module record Urban Spatial Morphology data, specifically includes following steps:
(11) the trivector figure of job area is obtained according to reality mapping and remote sensing map；
(12) trivector figure is simplified, then use the form conversion command in AUTOCAD software that all vector datas obtained after simplification are saved as multi-section-line form；
(13) vector data saving as multi-section-line form is split as road axis, architectural plane contour line and building storey, road axis is saved in road-center line chart layer, architectural plane contour line is saved in architectural plane line drawing layer, building storey is saved in building storey figure layer.
Sound source information is carried out instantaneous acquiring by noise instantaneous acquiring module by described step (2), sets up sound source instantaneous acquiring data base, specifically includes following steps:
(21) according to the wagon flow data on road within the scope of the measuring method Collecting operation of multiple spot timing；
(22) vehicle flowrate is calculated according to the wagon flow data collected, vehicle flowrate, total car number=heavy goods vehicles number+common in-vehicle number, loaded vehicle ratio=heavy goods vehicles number/total car number is expressed in the way of total car number and loaded vehicle ratio, large car and in-between car classify as heavy goods vehicles, and compact car classifies as common in-vehicle；
(23) self attributes of road and corresponding vehicle flowrate are arranged in Microsoft Excel, set up sound source instantaneous acquiring data base；The self attributes of road includes road width, road average speed, road speed limit value and road surface type.
Urban Spatial Morphology data and sound source instantaneous acquiring data base are carried out the three-dimensional simulation of city noise by the simulation of noise three-dimensional information and display module by described step (3), and export city noise three-dimensional map；Adopt Cadna/A software as noise prediction model software, specifically include following steps:
(31) importing Urban Spatial Morphology data, set architectural plane line drawing layer and building storey figure layer form the three-dimensional building thing pel that simulation needs；
(32) Urban Spatial Morphology data and sound source instantaneous acquiring data base are imported, road-center line chart layer is converted to road, vehicle flowrate, road width, road average speed, road speed limit value and the road surface type that input road is corresponding, forms the sound source that simulation needs；
(33) arranging sizing grid is 5m × 5m, arranges reception highly for apart from ground 1.5m, carrying out the simulation of space outerpace noise circumstance, building surface noise environmental simulation and specify section spatial noise environmental simulation.
By analog result with use cel-430 integration type sound meter to carry out contrast at specified time period field survey the equivalent sound pressure DBMS that reads to check, if difference is relatively big, then sizing grid and receiving highly can be finely tuned.Our repeatedly simulating reality, our analog result and the measured result of cel-430 integration type sound meter are substantially identical, it was demonstrated that parameter arranges substantially accurate.
Acoustic environment data message is combined with Computer Database by the present invention based on GIS (GIS-Geographic Information System) and Cities Coordinate, translated by data, will be unable to the noise of naked-eye observation and carry out Visualization, by required data dynamically by Computer display, information needed can be obtained intuitively, fast, be conducive to city noise is cut down, promote city environmental quality, guiding traffic adjusts, and sets up the research of traffic calming zone.
Beneficial effect: city noise 3D numerical map manufacture method provided by the invention, has the advantage that
1, actual workable: traditional Noise map is to coincide with practical situation, it is necessary to have the automatic monitoring site of abundant noise relies on reliable geographic information data to realize, this is accomplished by the input of substantial amounts of man power and material, is not easy to Noise map popularization in China；This method is based on actual operability principle, instant sampling and measuring method easy to use and auxiliary equipment carry out easy data process, conversion, computing after carrying out data collection, completing the drafting to city noise 3D numerical map and display, this method is conducive to popularization and the application of the dynamic monitoring to city noise environment and Noise map.
2, prediction accuracy is high: current existing Noise map, mostly draws from the Overlaying analysis result of plane space data and noise data, have ignored three-dimensional space shape to a certain extent to the interference of noise and impact；This method is simulated from the three dimensions of noise and is started with, data are gathered in time in conjunction with space vector three-dimensional data and noise, draw the multi-level Noise map such as plane, section and three-dimensional noise, and it is randomly provided measuring point, use high accuracy integration type sound meter to carry out measuring point actual noise detecting the calibration as to the Noise map that simulation generates, improve the accuracy of city noise map comprehensively.
3, cover comprehensively: the noise 3D map that this method provides is capable of universe and covers, on range, not only it is different from traditional Noise map, and there is the feature of all-dimensional multi-angle in the degree of depth, the relation of city density and noise can either be embodied, can intuitively find out again to decay in the high-altitude of building height and noise.The contacting of reflection city three-dimensional space shape and city noise on the whole.
Accompanying drawing explanation
Fig. 1 is case urban spatial noise figure；
Fig. 2 is local, case city: De Ji square noise 3D numerical map；
Fig. 3 is local, case city: long hair square noise 3D numerical map；
Fig. 4 is local, case city: Zi Feng mansion noise 3D numerical map；
In figure: (a) represents plot spatial shape, (b) represents plane 1.5m sound pressure level isogram, and (c) represents East and West direction section sound pressure level isogram；D () represents noise 3D numerical map.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
A kind of city noise 3D numerical map manufacture method, comprises the steps:
(1) by Urban Spatial Morphology module record Urban Spatial Morphology data
(11) avenue of center, Xin Jie Kou, Nanjing in present case, block, the dwg form landform e-file that makes mainly through Mapping departments of spatial data of building and complete to obtain to the artificial vector quantization of satellite remote sensing figure, in the block updated, building and the data such as surrounding enviroment, building storey, height investigate supplementary acquisition through on the spot, it is thus achieved that completely, center, Xin Jie Kou present situation land used vector graphics and dependent coordinate data accurately.
(12) utilize AUTOCAD software that the vector data of center, Xin Jie Kou, Nanjing is saved as multi-section-line form.
(13) vector data saving as multi-section-line form is split as road axis, architectural plane contour line and building storey, road axis is saved in road-center line chart layer, architectural plane contour line is saved in architectural plane line drawing layer, building storey is saved in building storey figure layer.
(14) center, Xin Jie Kou, the Nanjing vector data dwg file after simplification and process is stored with dxf form.
(2) by noise instantaneous acquiring module instant sound source information it is acquired and processes, setting up sound source instantaneous acquiring data base
(21) use the traffic noise on urban roads of center, Xin Jie Kou as noise parameter basic data, obtain the instantaneous acquiring data of center, Xin Jie Kou noise according to the measuring method of multiple spot timing.
(22) vehicle flowrate is calculated according to the wagon flow data collected, vehicle flowrate, total car number=heavy goods vehicles number+common in-vehicle number, loaded vehicle ratio=heavy goods vehicles number/total car number is expressed in the way of total car number and loaded vehicle ratio, large car and in-between car classify as heavy goods vehicles, and compact car classifies as common in-vehicle.
(23) self attributes of road and corresponding vehicle flowrate are arranged in Microsoft Excel, set up sound source instantaneous acquiring data base；The self attributes of road includes road width, road average speed, road speed limit value and road surface type.
(3) by the simulation of noise three-dimensional information and display module Urban Spatial Morphology data and sound source instantaneous acquiring data base carried out the three-dimensional simulation of city noise, and exports city noise three-dimensional map
(31) importing Urban Spatial Morphology data, set architectural plane line drawing layer and building storey figure layer form the three-dimensional building thing pel that simulation needs.
(32) Urban Spatial Morphology data and sound source instantaneous acquiring data base are imported, road-center line chart layer is converted to road, vehicle flowrate, road width, road average speed, road speed limit value and the road surface type that input road is corresponding, forms the sound source that simulation needs.
(33) arranging sizing grid is 5m × 5m, arranges reception highly for apart from ground 1.5m, carrying out the simulation of space outerpace noise circumstance, building surface noise environmental simulation and specify section spatial noise environmental simulation.Calculating center, Xin Jie Kou space outerpace noise circumstance in simulation uses building height not calculate sound source and building interior region；Need in center, Xin Jie Kou to carry out arranging inside the building pel of building surface noise environmental simulation " building evaluation " pel, extract such pel and be simulated and calculate the distribution of its plane sound pressure level；For specifying the simulation of section spatial noise environment, first profile drawing is decided what is right and what is wrong line in software, arranges simulation lattice, arrange content identical with plane sound pressure level simulation after generating section.
Center, the Xin Jie Kou noise data drawn at specified time period field survey with using cel-430 integration type sound meter and is read equivalent sound pressure DBMS carries out contrast and checks, it has been found that the measured result of the result drawn and integration type sound meter is substantially identical；Utilize noisemapping that simulation predicting analysis result exports as two dimensional surface noise circumstance image and noise data city noise 3D numerical map, as shown in Figure 1；Use several positions (Fig. 2, Fig. 3 and Fig. 4) that survey sound point function is specified in center, Xin Jie Kou to read the data analyzing result, and derivation carries out storing to statistical analysis software EXCEL and GIS and analyzes.
Space, three-dimensional city is combined with noise by the present invention to form the noise circumstance data city noise 3D numerical map of high accuracy, high-quality, intuitively demonstrate the noise circumstance in city.City noise is controlled to be converted into, by abstract physical acoustics problem, the step that urban planning intuitively carries out judging and optimizing and revising by city noise 3D numerical map, the physical phenomenon that acoustic environment is distributed is combined with the spatial shape at its place, the tool of optimizing and revising of the noise in city planning design, spatial shape layout is had significant practical applications.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (2)
1. a city noise 3D numerical map manufacture method, it is characterised in that: comprise the steps:
(1) by Urban Spatial Morphology module record Urban Spatial Morphology data；
(2) by noise instantaneous acquiring module instant sound source information it is acquired and processes, setting up sound source instantaneous acquiring data base；
(3) by the simulation of noise three-dimensional information and display module Urban Spatial Morphology data and sound source instantaneous acquiring data base carried out the three-dimensional simulation of city noise, and exports city noise three-dimensional map.
2. city noise 3D numerical map manufacture method according to claim 1, it is characterised in that: particularly as follows:
(1) by Urban Spatial Morphology module record Urban Spatial Morphology data, following steps are specifically included:
(11) the trivector figure of job area is obtained according to reality mapping and remote sensing map；
(12) trivector figure is simplified, then use the form conversion command in AUTOCAD software that all vector datas obtained after simplification are saved as multi-section-line form；
(13) vector data saving as multi-section-line form is split as road axis, architectural plane contour line and building storey, road axis is saved in road-center line chart layer, architectural plane contour line is saved in architectural plane line drawing layer, building storey is saved in building storey figure layer；
(2) by noise instantaneous acquiring module, sound source information is carried out instantaneous acquiring, sets up sound source instantaneous acquiring data base, specifically include following steps:
(21) according to the wagon flow data on road within the scope of the measuring method Collecting operation of multiple spot timing；
(22) vehicle flowrate is calculated according to the wagon flow data collected, vehicle flowrate, total car number=heavy goods vehicles number+common in-vehicle number, loaded vehicle ratio=heavy goods vehicles number/total car number is expressed in the way of total car number and loaded vehicle ratio, large car and in-between car classify as heavy goods vehicles, and compact car classifies as common in-vehicle；
(23) self attributes of road and corresponding vehicle flowrate are arranged in Microsoft Excel, set up sound source instantaneous acquiring data base；The self attributes of road includes road width, road average speed, road speed limit value and road surface type；
(3) by the simulation of noise three-dimensional information and display module Urban Spatial Morphology data and sound source instantaneous acquiring data base carried out the three-dimensional simulation of city noise, and exports city noise three-dimensional map；Adopt Cadna/A software as noise prediction model software, specifically include following steps:
(31) importing Urban Spatial Morphology data, set architectural plane line drawing layer and building storey figure layer form the three-dimensional building thing pel that simulation needs；
(32) Urban Spatial Morphology data and sound source instantaneous acquiring data base are imported, road-center line chart layer is converted to road, vehicle flowrate, road width, road average speed, road speed limit value and the road surface type that input road is corresponding, forms the sound source that simulation needs；
(33) arranging sizing grid is 5m × 5m, arranges reception highly for apart from ground 1.5m, carrying out the simulation of space outerpace noise circumstance, building surface noise environmental simulation and specify section spatial noise environmental simulation.
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Cited By (7)
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| CN106601260A (en) * | 2016-11-30 | 2017-04-26 | 中山大学 | Method for representing virtual sound of traffic noise map |
| CN108871551A (en) * | 2018-06-05 | 2018-11-23 | 哈尔滨工业大学深圳研究生院 | A kind of Noise map method for drafting applied to urban plan and design project environmental impact assessment |
| CN110621966A (en) * | 2017-05-16 | 2019-12-27 | 昕诺飞控股有限公司 | Noise flow monitoring and sound localization via smart lighting |
| CN111428285A (en) * | 2020-03-12 | 2020-07-17 | 深圳小库科技有限公司 | Noise evaluation method and device and storage medium |
| CN114021384A (en) * | 2021-11-25 | 2022-02-08 | 福州大学 | BIM and GIS-based road noise visual evaluation method |
| CN116108672A (en) * | 2023-02-17 | 2023-05-12 | 南京声远声学科技有限公司 | Outdoor sound propagation prediction model construction method based on geographic information system |
| CN116205771A (en) * | 2023-02-27 | 2023-06-02 | 南京声远声学科技有限公司 | Acoustic environment information system based on noise monitoring and prediction calibration and construction method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601260A (en) * | 2016-11-30 | 2017-04-26 | 中山大学 | Method for representing virtual sound of traffic noise map |
| CN110621966A (en) * | 2017-05-16 | 2019-12-27 | 昕诺飞控股有限公司 | Noise flow monitoring and sound localization via smart lighting |
| CN108871551A (en) * | 2018-06-05 | 2018-11-23 | 哈尔滨工业大学深圳研究生院 | A kind of Noise map method for drafting applied to urban plan and design project environmental impact assessment |
| CN111428285A (en) * | 2020-03-12 | 2020-07-17 | 深圳小库科技有限公司 | Noise evaluation method and device and storage medium |
| CN114021384A (en) * | 2021-11-25 | 2022-02-08 | 福州大学 | BIM and GIS-based road noise visual evaluation method |
| CN116108672A (en) * | 2023-02-17 | 2023-05-12 | 南京声远声学科技有限公司 | Outdoor sound propagation prediction model construction method based on geographic information system |
| CN116108672B (en) * | 2023-02-17 | 2024-01-23 | 南京声远声学科技有限公司 | Outdoor sound propagation prediction model construction method based on geographic information system |
| CN116205771A (en) * | 2023-02-27 | 2023-06-02 | 南京声远声学科技有限公司 | Acoustic environment information system based on noise monitoring and prediction calibration and construction method thereof |
| CN116205771B (en) * | 2023-02-27 | 2023-11-21 | 南京声远声学科技有限公司 | Acoustic environment information system based on noise monitoring and prediction calibration and construction method thereof |
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