3D noise map drawing system and method thereof
A noise map and 3D technology, applied to maps/plans/charts, instruments, educational appliances, etc., can solve the problems of not allowing users to update the design, unable to simulate outdoor noise and indoor noise, etc., to improve adaptability and flexibility, The effect of improving accuracy
Active Publication Date: 2018-07-10
HKUST SHENZHEN RES INST +1
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Problems solved by technology
[0012] Therefore, existing building noise mapping methods cannot simulate outdoor noise and indoor noise on the same platform
And it also does not allow the user to update the design on the simulation platform to meet specific noise control goals
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[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0057] Proper data acquisition is a bottleneck for some existing technologies. For example, and Sivertunb generate 3D GIS models from 2D footprint extrusions as well as laser scan data. The resulting model does not have access to internal features. In addition, some parameters in acoustic simulations, such as transmission loss, are usually estimated by single values and thus cannot reflect real-world situations. Therefore, in a preferred embodiment of the present invention, these problems are solved by combining BIM and 3D GIS.
[0058] Building Information Modeling (Building Information Mod...
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The invention provides a 3D noise map drawing system and a method thereof. The method comprises the steps of S1, generating 3D sampling points by means of given resolution; S2, performing outdoor noise level calculation of outdoor 3D sampling points by means of a traffic noise predication model; S3, performing indoor noise level calculation of indoor 3D sampling points by means of the traffic noise predication model; and S4, generating a 3D noise map in which the noise levels of all 3D sampling points are displayed based on outdoor noise level calculation and indoor noise level calculation. According to the 3D noise map drawing method and the 3D noise map drawing system, indoor noise and outdoor noise are simultaneously considered, and therefore the noise level can be evaluated in a room.Furthermore an Italian C.N.R. model is utilized, and noise reflection and noise loss are analyzed, thereby improving noise predication accuracy. Furthermore, the model in the invention can be changed,thereby improving adaptability and flexibility of the system.
Description
technical field [0001] The present invention relates to the field of urban construction, and more specifically, to a system and method for drawing 3D noise maps. Background technique [0002] As more and more people live in urbanized areas, high-density civil infrastructure in cities is becoming a major source of noise and affecting more and more citizens. A large number of studies have shown that long-term exposure to noise will have adverse effects on human health both mentally and physically. Sleep disturbance, hearing loss, and loss of cardiovascular protection have been observed in people exposed to high levels of noise. Among the various noise sources in urban environments, traffic noise from moving vehicles in civil infrastructure is considered to be the largest contributor to noise. Traffic noise is often a line source and affects large numbers of people. [0003] Considering the negative impact of traffic noise, some standards have been developed to provide guide...
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Login to View More IPC IPC(8): G09B29/00
CPCG09B29/007
Inventor 邓逸川郑展鹏
Owner HKUST SHENZHEN RES INST