项目名称: 面向直升机防撞的低空多源时空数据组织模型构建与应用研究
项目编号: No.41301428
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 天文学、地球科学
项目作者: 李锋
作者单位: 中国人民解放军信息工程大学
项目金额: 25万元
中文摘要: 低空飞行环境复杂,包括复杂地形、高层建筑、雨雪、大雾、风切变等地理气象要素以及电磁、飞行器等动态要素,对低空飞行安全构成了重大影响。直升机活动集中在低空空域,面临巨大的撞机威胁。因此构建高效的低空多源时空数据组织模型是研发直升机低空防撞系统、安全管理系统的重要基础。 本课题针对直升机低空安全飞行及防撞需要,采用空间信息网格思路构建球面低空立体网格模型,支持低空飞行环境多源、动态、多尺度时空数据统一管理;研究低空地理、气象、电磁、动态目标等环境要素与防撞雷达、ADS-B等传感器信息的集成、融合与统一表达技术;探索直升机碰撞检测、避撞路径规划以及低空环境真实与非真实绘制问题。为直升机低空防撞、空域管理、可视导航等应用提供理论和技术支持,属于地理信息科学研究领域中应用基础研究课题。
中文关键词: 时空数据模型;空间信息网格;碰撞检测;路径规划;合成视觉
英文摘要: Low-flying environment is complex. Include terrain, tall building, rain, snow,fog, wind shear and other geographical, meteorological elements, as well as electromagnetic, dynamic target elements have a significant impact on the safety of low-flying. Helicopter activity which is concentrated in the low-altitude airspace, must face the complex and dangerous low-altitude environment, facing a greater threat to the collider.Therefore, to build efficient low-altitude multi-source spatial and temporal data organization model is an important foundation to solve a helicopter at low altitude collision avoidance. The topic for the helicopter at low altitude collision avoidance needing, utilizing space information grid ideas, builds a low-altitude flight environment, multi-source, dynamic, multi-scale spatial and temporal data unified management of low-altitude three-dimensional the grid spatial and temporal data organization model. Study low-altitude geographical, meteorological, electromagnetic, dynamic target environmental elements and anti-collision radar, ADS-B sensors such return information integration, integration with unified expression technology. Explore the low altitude dimensional grid model support helicopter collision detection, path planning and low-altitude environment real collision avoidance and non-phot
英文关键词: spatio-temporal data model;spatial information grid;collision detection;path planning;synthetic vision