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    • 1. 发明授权
    • Method for updating a site database using a triangular irregular network
    • 使用三角形不规则网络更新站点数据库的方法
    • US5735352A
    • 1998-04-07
    • US768150
    • 1996-12-17
    • Daniel E. HendersonCraig L. KoehrsenDavid A. PaulWilliam C. Sahm
    • Daniel E. HendersonCraig L. KoehrsenDavid A. PaulWilliam C. Sahm
    • E02F3/84G05B19/18F21B21/06
    • E02F3/847E02F3/842
    • The present invention provides a method for updating a site database. The site database models the elevation of a work site using a Triangular Irregular Network (TIN). The TIN is composed of a plurality of points. Each point has associated known X and Y coordinates and a known elevation and is associated with a set of other points in the network to form triangles. The work site is modified by a work machine. The method includes the steps of receiving a new set of points. The new set of points includes at least first and second points. The first and second points have associated X, Y, and Z coordinates. The method also includes the steps of comparing the new set of points with a previous set of points and updating the triangular irregular network with the new set of points if a minimum distance has been traversed by the work machine.
    • 本发明提供了一种用于更新站点数据库的方法。 站点数据库使用三角不规则网络(TIN)对工作地点的高程进行建模。 TIN由多个点组成。 每个点具有关联的已知X和Y坐标以及已知高程,并且与网络中的一组其他点相关联以形成三角形。 工作地点由工作机器修改。 该方法包括接收一组新的点的步骤。 新的一组点至少包括第一和第二点。 第一和第二点具有相关联的X,Y和Z坐标。 该方法还包括以下步骤:如果工作机器已经移动了最小距离,则将新的一组点与先前的一组点进行比较,并用新的一组点更新三角形不规则网络。
    • 2. 发明授权
    • Method and apparatus for operating geography altering machinery relative
to a work site
    • 用于操作地理相对于工作场所改变机器的方法和装置
    • US6047227A
    • 2000-04-04
    • US752368
    • 1996-11-19
    • Daniel E. HendersonCraig L. Koehrsen
    • Daniel E. HendersonCraig L. Koehrsen
    • G01S19/48E02F9/20G06F7/70
    • E02F9/2045
    • A method and apparatus for operating geography-altering machinery such as a track-type tractor, road grader, paver or the like relative to a work site to alter the geography of the site toward a desired condition. A first digital three-dimensional model of the desired site geography, and a second digital three-dimensional model of the actual site geography are stored in a digital data storage facility. The machine is equipped with a position receiver to determine in three-dimensional space the location of the machine relative to the site. A dynamic database receives the machine position information, determines the difference between the first and second site models and generates representational signals of that difference for directing the operation of the machine to bring the actual site geography into conformity with the desired site geography. In one embodiment, the signals representing the machine position and the difference between the first and second site models used to generate an operator display which is updated in real time. Alternately, the signals representing the difference between the first and second site models can be supplied to automatic machine controls for autonomous or semi-autonomous operation of the machine.
    • 用于相对于工作现场操作诸如轨道式拖拉机,道路平地机,摊铺机等的地理变化机械的方法和装置,以将站点的地理位置改变到期望的状态。 所需位置地理学的第一数字三维模型和实际站点地理学的第二数字三维模型被存储在数字数据存储设施中。 该机器配备有位置接收器,用于在三维空间中确定机器相对于现场的位置。 动态数据库接收机器位置信息,确定第一和第二站点模型之间的差异,并产生该差异的表示信号,用于指导机器的操作,以使实际站点地理位置与期望的站点地理位置一致。 在一个实施例中,表示机器位置的信号和用于生成实时更新的操作者显示器的第一和第二站点模型之间的差异。 或者,表示第一和第二站点模型之间的差异的信号可以被提供给机器的自动或半自主操作的自动机器控制。