In order to enhance modeling efficiency and accuracy,we utilized 3D laser point cloud data for indoor space modeling.Point cloud data was obtained with a 3D laser scanner and optimized with Autodesk Recap and Revit so...In order to enhance modeling efficiency and accuracy,we utilized 3D laser point cloud data for indoor space modeling.Point cloud data was obtained with a 3D laser scanner and optimized with Autodesk Recap and Revit software to extract geometric information about the indoor environment.Furthermore,we proposed a method for constructing indoor elements based on parametric components.The research outcomes of this paper will offer new methods and tools for indoor space modeling and design.The approach of indoor space modeling based on 3D laser point cloud data and parametric component construction can enhance modeling efficiency and accuracy,providing architects,interior designers,and decorators with a better working platform and design reference.展开更多
With the economic development and increase of income, urban citizens have attached more importance to the comfort of living environment, and aesthetic property of buildings. Exterior design is the extension and redesi...With the economic development and increase of income, urban citizens have attached more importance to the comfort of living environment, and aesthetic property of buildings. Exterior design is the extension and redesign on the basis of interior design, interior and exterior spatial design and architectural design are closely related. This paper explored the approaches of integrating indoor and outdoor spaces of urban landscape buildings by analyzing excellent building cases.展开更多
Objective:To demonstrate the effect of indoor spraying and window screens on Aedes aegypti mosquito density after space spraying.Methods:A total of 141 households(the study houses)in six communities of Songkhla City,l...Objective:To demonstrate the effect of indoor spraying and window screens on Aedes aegypti mosquito density after space spraying.Methods:A total of 141 households(the study houses)in six communities of Songkhla City,located in Songkhla Province of southern Thailand,were randomly selected and the adult Ae.aegypti populations were assessed pre-and post-insecticide spraying from March to October,2014.Houses close to(within a 20 m radius)the study houses were analyzed using spatial analysis tools.The Aedes aegypti density in the study houses and house density index were compared with the density in the neighbouring houses,based on three spraying conditions:(i)unsprayed(ii)only outdoor sprayed and(iii)indoor plus outdoor sprayed.Results:Only spraying houses indoors was the most effective(P<0.05).There was insufficient evidence that the source of the increase in the number of mosquitoes in unsprayed houses was due to their migration from neighbouring houses which had been sprayed.However,the study houses without screens on their windows were found to have a likely higher dengue vector population after spraying,but the difference was not significant.Conclusions:In dengue endemic areas,all houses should be fully screened and the number of houses ultra-low volume sprayed indoor plus outdoor should be increased with the cooperation of householders and communities during epidemics.展开更多
针对在狭长空间下传统的行人航迹推算(Pedestrian Dead Reckoning,PDR)方法易受传感器扰动与环境干扰,导致传感器数据存在误差累积无法实现行人位置精确估计的问题,结合室内走廊狭长空间典型场景下北斗伪卫星(Pseudosatellite,PL)的信...针对在狭长空间下传统的行人航迹推算(Pedestrian Dead Reckoning,PDR)方法易受传感器扰动与环境干扰,导致传感器数据存在误差累积无法实现行人位置精确估计的问题,结合室内走廊狭长空间典型场景下北斗伪卫星(Pseudosatellite,PL)的信号特征,提出了一种基于北斗信标辅助的PDR狭长空间定位方法。通过提取空间下确定性位置PL观测量数据特征,建立了数据特征与空间位置的指纹位置对应关系。设计了一种北斗PL与PDR组合的拐点检测方法。以北斗信标节点为基础,结合PDR适用范围大与应用性强的特性,将方向信息组合到卡尔曼滤波算法中完成设计。通过实测验证,与PDR定位方法相比,在室内狭长空间情况下组合系统的均方根误差(Root Mean Squared Error,RMSE)定位精度提高了54%。展开更多
基金supported by the Innovation and Entrepreneurship Training Program Topic for College Students of North China University of Technology in 2023.
文摘In order to enhance modeling efficiency and accuracy,we utilized 3D laser point cloud data for indoor space modeling.Point cloud data was obtained with a 3D laser scanner and optimized with Autodesk Recap and Revit software to extract geometric information about the indoor environment.Furthermore,we proposed a method for constructing indoor elements based on parametric components.The research outcomes of this paper will offer new methods and tools for indoor space modeling and design.The approach of indoor space modeling based on 3D laser point cloud data and parametric component construction can enhance modeling efficiency and accuracy,providing architects,interior designers,and decorators with a better working platform and design reference.
文摘With the economic development and increase of income, urban citizens have attached more importance to the comfort of living environment, and aesthetic property of buildings. Exterior design is the extension and redesign on the basis of interior design, interior and exterior spatial design and architectural design are closely related. This paper explored the approaches of integrating indoor and outdoor spaces of urban landscape buildings by analyzing excellent building cases.
基金supported by Research Fund,Prince of Songkla University Contract Number MET590137S.
文摘Objective:To demonstrate the effect of indoor spraying and window screens on Aedes aegypti mosquito density after space spraying.Methods:A total of 141 households(the study houses)in six communities of Songkhla City,located in Songkhla Province of southern Thailand,were randomly selected and the adult Ae.aegypti populations were assessed pre-and post-insecticide spraying from March to October,2014.Houses close to(within a 20 m radius)the study houses were analyzed using spatial analysis tools.The Aedes aegypti density in the study houses and house density index were compared with the density in the neighbouring houses,based on three spraying conditions:(i)unsprayed(ii)only outdoor sprayed and(iii)indoor plus outdoor sprayed.Results:Only spraying houses indoors was the most effective(P<0.05).There was insufficient evidence that the source of the increase in the number of mosquitoes in unsprayed houses was due to their migration from neighbouring houses which had been sprayed.However,the study houses without screens on their windows were found to have a likely higher dengue vector population after spraying,but the difference was not significant.Conclusions:In dengue endemic areas,all houses should be fully screened and the number of houses ultra-low volume sprayed indoor plus outdoor should be increased with the cooperation of householders and communities during epidemics.
文摘针对在狭长空间下传统的行人航迹推算(Pedestrian Dead Reckoning,PDR)方法易受传感器扰动与环境干扰,导致传感器数据存在误差累积无法实现行人位置精确估计的问题,结合室内走廊狭长空间典型场景下北斗伪卫星(Pseudosatellite,PL)的信号特征,提出了一种基于北斗信标辅助的PDR狭长空间定位方法。通过提取空间下确定性位置PL观测量数据特征,建立了数据特征与空间位置的指纹位置对应关系。设计了一种北斗PL与PDR组合的拐点检测方法。以北斗信标节点为基础,结合PDR适用范围大与应用性强的特性,将方向信息组合到卡尔曼滤波算法中完成设计。通过实测验证,与PDR定位方法相比,在室内狭长空间情况下组合系统的均方根误差(Root Mean Squared Error,RMSE)定位精度提高了54%。
