System and method for enhancing computer-generated images of terrain on aircraft displays
    1.
    发明授权
    System and method for enhancing computer-generated images of terrain on aircraft displays 有权
    用于增强飞机显示器上计算机生成的地形图像的系统和方法

    公开(公告)号:US08265803B2

    公开(公告)日:2012-09-11

    申请号:US13219170

    申请日:2011-08-26

    申请人: Gang He

    发明人: Gang He

    IPC分类号: G01C230/00

    CPC分类号: G01C23/00

    摘要: A system and method are disclosed for enhancing the visibility and ensuring the correctness of terrain and navigation information on aircraft displays, such as, for example, continuous, three-dimensional perspective view aircraft displays conformal to the visual environment. More specifically, an aircraft display system is disclosed that includes a processing unit, a navigation system, a database for storing high resolution terrain data, a graphics display generator, and a visual display. One or more independent, higher precision databases with localized position data, such as navigation data or position data is onboard. Also, one or more onboard vision sensor systems associated with the navigation system provides real-time spatial position data for display, and one or more data links is available to receive precision spatial position data from ground-based stations. Essentially, before terrain and navigational objects (e.g., runways) are displayed, a real-time correction and augmentation of the terrain data is performed for those regions that are relevant and/or critical to flight operations, in order to ensure that the correct terrain data is displayed with the highest possible integrity. These corrections and augmentations performed are based upon higher precision, but localized onboard data, such as navigational object data, sensor data, or up-linked data from ground stations. Whenever discrepancies exist, terrain data having a lower integrity can be corrected in real-time using data from a source having higher integrity data. A predictive data loading approach is used, which substantially reduces computational workload and thus enables the processing unit to perform such augmentation and correction operations in real-time.

    摘要翻译: 公开了一种用于增强可视性并确保飞机显示器上的地形和导航信息的正确性的系统和方法,例如与视觉环境一致的连续的三维透视图飞机显示器。 更具体地,公开了一种飞行器显示系统,其包括处理单元,导航系统,用于存储高分辨率地形数据的数据库,图形显示生成器和可视显示器。 一个或多个具有本地化位置数据(例如导航数据或位置数据)的独立,更高精度的数据库是板载的。 而且,与导航系统相关联的一个或多个车载视觉传感器系统提供用于显示的实时空间位置数据,并且一个或多个数据链路可用于从地面站接收精确的空间位置数据。 基本上,在显示地形和导航对象(例如跑道)之前,对与飞行操作相关和/或关键的区域执行地形数据的实时校正和增强,以确保正确的地形 以最高的完整性显示数据。 执行的这些校正和增强是基于更高的精度,但是本地化的板载数据,例如导航对象数据,传感器数据或来自地面站的上传数据。 每当存在差异时,可以使用来自具有较高完整性数据的源的数据实时地校正具有较低完整性的地形数据。 使用预测数据加载方法,其大大减少了计算工作量,从而使得处理单元能够实时地执行这种增加和校正操作。

    Data structure of digital map file
    2.
    发明授权
    Data structure of digital map file 有权
    数字地图文件的数据结构

    公开(公告)号:US06636802B1

    公开(公告)日:2003-10-21

    申请号:US09856541

    申请日:2001-05-23

    IPC分类号: G01C230

    CPC分类号: G01C21/32

    摘要: A terminal device for reading a cartographic file in which updating one cartographic file does not require updating cartographic files in the neighboring units. For this purpose, cartographic files which represent respective units extracted by dividing a map into a plurality of areas each comprise node records generated for respective nodes and link records generated for respective links. Given node records contain coordinate information about neighboring nodes which define connections of roads between its unit and a neighboring unit. The cartographic files are stored in a first storage device. The data processing portion executes a process of searching for a route by using the cartographic files. During the route search, the data processing portion traces the connection from a road in one unit to a road in another, neighboring, unit on the basis of the coordinate information about the neighboring nodes of said one unit and said neighboring another unit.

    摘要翻译: 用于读取制图文件的终端设备,其中更新一个制图文件不需要更新相邻单元中的制图文件。 为此,将通过将地图划分成多个区域而提取的各个单元的制图文件各自包括为各个节点生成的节点记录和为各个链接生成的链接记录。 给定节点记录包含关于定义其单元和相邻单元之间的道路连接的相邻节点的坐标信息。 制图文件存储在第一存储设备中。 数据处理部分通过使用制图文件执行搜索路线的处理。 在路线搜索期间,数据处理部分基于关于所述一个单元和所述相邻另一个单元的相邻节点的坐标信息来跟踪从一个单元中的道路到另一个相邻单元中的道路的连接。

    Information terminal and cartographic information providing system
    3.
    发明授权
    Information terminal and cartographic information providing system 有权
    信息终端和制图信息提供系统

    公开(公告)号:US06430499B1

    公开(公告)日:2002-08-06

    申请号:US10094626

    申请日:2002-03-12

    IPC分类号: G01C230

    CPC分类号: G01C21/26

    摘要: An information terminal 1 is provided with a first input section 11, a position detector 12, a first arithmetic operation section 13, a data storage section 15, a first data reader 18, a connection information generator 17, and a first output section 16. The data storage section 15 stores cartographic data having the data structure simplified but capable of recovering information about connection among nodes and links constructing a road network. The connection information generator 17 complements the connection information of the cartographic data. The first arithmetic operation section 13 uses the connection information complemented by the connection information generator 17 to carry out data processing for various purposes, such as route search and position detection.

    摘要翻译: 信息终端1设置有第一输入部11,位置检测器12,第一算术运算部13,数据存储部15,第一数据读取部18,连接信息生成部17以及第一输出部16。 数据存储部分15存储具有简化的数据结构但能够恢复关于构建道路网络的节点和链路之间的连接的信息的制图数据。 连接信息发生器17补充制图数据的连接信息。 第一算术运算部13使用由连接信息生成部17补充的连接信息,进行路线搜索,位置检测等各种目的的数据处理。