搜索结果: 1-15 共查到“知识库 工学 Mesh”相关记录139条 . 查询时间(0.035 秒)
INDOOR SPATIAL DATA CONSTRUCTION FROM TRIANGLE MESH
TriangleMesh Mesh Simplification Solid Indoor Space Indoor Data IndoorGML
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2018/11/8
The 3D triangle mesh is widely used to represent indoor space. One of widely used methods of generating 3D triangle mesh data of indoor space is the construction from the point cloud collected using L...
STOCHASTIC SURFACE MESH RECONSTRUCTION
TLS point cloud point error model error ellipsoid variance-covariance propagation surface triangulation
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2018/6/4
A generic and practical methodology is presented for 3D surface mesh reconstruction from the terrestrial laser scanner (TLS) derived point clouds. It has two main steps. The first step deals with deve...
MESH-TO-BIM: FROM SEGMENTED MESH ELEMENTS TO BIM MODEL WITH LIMITED PARAMETERS
Architectural Heritage BIM Documentation Ruins Segmented elements Visual programming
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2018/6/5
Building Information Modelling (BIM) technique has been widely utilized in heritage documentation and comes to a general term Historical/Heritage BIM (HBIM). The current HBIM project mostly employs th...
基于身份盲签名的无线Mesh网络匿名切换认证方案
无线Mesh网络 认证 数据隐私 密码学
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2018/6/13
无线Mesh网络客户端的强移动性使得其需要在无线Mesh路由器之间进行频繁切换。为了解决当前无线Mesh网络中的切换认证方案无法同时实现高效率和高隐私保护的问题，利用密码学中的基于身份盲签名的思想，提出了一种具有隐私保护的高效的无线Mesh网络匿名切换认证方案。
在智能电网（ｓｍａｒｔｇｒｉｄ，ＳＧ）接入层的无线 Ｍｅｓｈ网络（ｗｉｒｅｌｅｓｓｍｅｓｈｎｅｔｗｏｒｋｓ，ＷＭＮｓ）应用中，针对数据流过
度地集中在关键节点而导致数据拥塞问题发生，提出一种基于平衡树的无线 Ｍｅｓｈ网络路由算法。在传统 ＡＯＤＶ
（ａｄｈｏｃｏｎｄｅｍａｎｄｄｉｓｔａｎｃｅｖｅｃｔｏｒｒｏｕｔｉｎｇ）算法的基础上，使用平衡树模型，综合考虑节点剩余容量和转发数据所需
的路由...
支持多业务传输的天基Mesh网络机会路由优化算法
会路由 多业务 Mesh网络 层次分析法
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2018/2/8
针对天基骨干Mesh网络业务类型多样、计算能力相对不足的特点以及SOAR路由算法拥塞控制机制不足、确认机制不可靠以及不同业务QoS保障需求有差异的问题,提出了具有可靠联合确认机制并支持多业务传输的机会路由算法。该算法以预期成功传输次数来描述整体链路性能,有效实现了网络负载均衡与链路拥塞控制;算法兼顾多样化业务的传输,设计了一种路由路径自适应调整策略,以实现路径选择与业务类型的自适应调整。仿真结果表...
基于MESH技术的油井远程监控系统在华北油田的应用
MESH 油井 远程监控 无线网络
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2016/12/22
随着油田进入后期滚动开发，配套油井数据及视频监控系统的增容扩建已成为常态，然而传统的数据无线传输、视频光缆传输的“两条路”监控模式为后期建设带来不便。基于MESH 网络技术的油水井远程监控系统由抽油机井下层监测单元、视频监控单元、MESH 终端、中控室服务器及数据处理中心站组成。MESH 无线网状网通信技术具有自组网、自管理、自动修复、自我平衡等智能优势，适用于井场周边环境复杂、地形起伏、遮挡严重...
GENERATION OF THE 30 M-MESH GLOBAL DIGITAL SURFACE MODEL BY ALOS PRISM
Global High resolution DEM/DTM Satellite Mapping
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2016/11/8
Topographical information is fundamental to many geo-spatial related information and applications on Earth. Remote sensing satellites have the advantage in such fields because they are capable of glob...
DUBAI 3D TEXTUERD MESH USING HIGH QUALITY RESOLUTION VERTICAL/OBLIQUE AERIAL IMAGERY
Oblique Texturing 3D Dense Matching Mesh Dubai Municipality DSM
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2016/7/27
Providing high quality 3D data with reasonable quality and cost were always essential, affording the core data and foundation for developing an information-based decision-making tool of urban environm...
Liszt: A Domain Specific Language for Building Portable Mesh-based PDE Solvers
compiler analysis and program transformations, programming and runtime environments for high performance and high throughput computing
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2016/5/24
Heterogeneous computers with processors and accelerators are becoming widespread in scientific computing. However,it is difficult to program hybrid architectures and there is no commonly accepted prog...
认知无线Mesh网络中资源节约的最小信道冲突值组播路由算法
认知无线Mesh网络 组播 频谱分配 粒子群优化
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2016/7/27
认知无线Mesh网络中满足QoS约束的多目标优化组播路由问题比单目标优化组播问题更加复杂,为了快速求解认知无线Mesh网络中满足Qos约束的以最小化资源消耗与最小化信道冲突值的多目标优化组播路由问题,提出了一种基于粒子群优化算法的问题求解框架,包括问题描述、粒子编码与粒子初始化、适应度函数、粒子飞行、粒子变异、粒子消环。粒子由表示节点之间连接关系的带权邻接矩阵表示,重新定义了用于粒子飞行的3种运算...
提出了一种无线mesh网中最小网络编码代价低时延多播路由协议(MNCLDMR, minimal network coding and low delay multicast routing)。MNCLDMR的目标是选择合适的网络编码节点，最小化网络编码代价，降低网络时延。MNCLDMR主要思想是引入拓扑关键节点和网络编码关键节点的概念，以下一跳的节点是否是网络编码关键节点或拓扑关键节点作为路由判据...
Describing and Computing Model of the Topological Relation in Spherical Surface Quaternary Triangular Mesh
Spherical surface QTM Euler_number Topological relation
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2015/12/3
Spherical surface QTM (Quaternary Triangular Mesh) is one of an efficient tool to deal with the global data because of its advantages of multi-resolution and hierarchy. Based on characters of spherica...
The Basic Topology Issues on Spherical Surface Quaternary Triangular Mesh
SGDM Manifold SQTM Spherical Surface Digital Topology Spherical Surface Topology Paradox
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2015/10/9
SGDM (Sphere Grid Data Model) is an efficient method to deal with the global data because of the advantages of multi-resolution
and hierarchy. However, SGDM has no distinct descriptions and lack of ...
ON THE WAY TO WATER-TIGHT MESH
Modelling Laser scanning Cultural Heritage Robotics Automation
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2015/10/8
This paper presents a new approach to generate water-tight surface mesh. In comparison with the two famous water-tight mesh
generation algorithms: Tight Cocone (Dey and Goswami, 2003) and Power Crus...