公开(公告)号：US06243649B1

公开(公告)日：2001-06-05

申请号：US09365579

申请日：1999-08-02

申请人： Lisa D. Wetherbee ,  Russ Keller

发明人： Lisa D. Wetherbee ,  Russ Keller

IPC分类号： G01C200

CPC分类号： G01S19/41 ,  G01C21/005 ,  G01S19/49

摘要： A method for correcting yaw in a DGPS (global positioning system) based guidance system mounted on a vehicle. The method corrects for a yaw induced heading/cross track error due to a DGPS antenna being mounted a significant distance from the point of operation (e.g., the vehicle operator's location, the center of the vehicle, etc.). The method determines a ground track of a vehicle using a DGPS system and a coupled antenna mounted on the vehicle. A heading of the vehicle is also determined using a compass mounted on the vehicle. The heading and the ground track are compared to determine whether a difference exits and the magnitude of the difference. Using the difference, the DGPS determined position is adjusted to be the position of the operator/center of the vehicle. Using this guidance information, an indication is generated operable for directing the vehicle to maintain a desired ground track. The indication is generated such that it compensates for the difference between the ground track at the point of operation and the desired ground track. The indication is generated to compensate for the specific mounting location of the DGPS antenna on the vehicle. In so doing, the indication properly directs the vehicle to maintain the desired ground track regardless of any yaw, crab, etc., of the vehicle, or any offset of the DGPS antenna due thereto.

摘要翻译： 一种用于在安装在车辆上的基于DGPS（全球定位系统）的引导系统中校正偏航的方法。 该方法校正由于DGPS天线与操作点（例如，车辆操作员的位置，车辆中心等）安装有重要距离的偏航感应航向/交叉轨道误差。 该方法使用DGPS系统和安装在车辆上的耦合天线来确定车辆的地面轨迹。 车辆的标题也使用安装在车辆上的罗盘来确定。 比较标题和地面轨迹，以确定差异是否退出，差异的大小。 使用差值，将DGPS确定的位置调整为车辆的操作者/中心的位置。 使用该引导信息，生成可操作以指示车辆保持期望的地面轨迹的指示。 产生指示，使得其补偿在操作点的地面轨迹与期望的地面轨迹之间的差异。 产生指示以补偿DGPS天线在车辆上的具体安装位置。 在这样做时，无论车辆的偏航，螃蟹等如何，该指示都适当地引导车辆保持期望的地面轨道，或者由于DGPS天线的任何偏移。

公开(公告)号：US06339746B1

公开(公告)日：2002-01-15

申请号：US09651095

申请日：2000-08-30

申请人： Hiroshi Sugiyama ,  Tamotsu Hasegawa ,  Miwako Doi

发明人： Hiroshi Sugiyama ,  Tamotsu Hasegawa ,  Miwako Doi

IPC分类号： G01C200

CPC分类号： G01C21/3644 ,  G08G1/005

摘要： A route guidance system for a pedestrian. An input unit inputs a departure point and a destination point of the pedestrian. A route data memory stores route data representing position and connection of each route comprising a road network. A route calculation unit calculates a route from the departure point to the destination point by referring to the route data in said route data memory. A landmark memory stores landmark data for the pedestrian's confirmation; a landmark represents a signpost of the departure point, the destination point, and the route. A landmark selection unit selects the landmark data corresponding to the route calculated by said route calculation unit from said landmark memory. A presentation unit presents a route guidance to the pedestrian using the calculated route and the selected landmark data.

摘要翻译： 行人路线引导系统。 输入单元输入行人的出发点和目的地点。 路线数据存储器存储表示包括道路网络的每个路线的位置和连接的路线数据。 路线计算单元通过参照所述路线数据存储器中的路线数据来计算从出发地点到目的地点的路线。 地标记忆存储行人确认的地标数据; 一个里程碑表示出发点，目的地点和路线的路标。 地标选择单元从所述地标存储器中选择与由所述路线计算单元计算出的路线对应的地标数据。 呈现单元使用所计算的路线和所选的地标数据向行人呈现路线引导。

公开(公告)号：US06459989B1

公开(公告)日：2002-10-01

申请号：US09517897

申请日：2000-03-03

申请人： Michael Kirkpatrick ,  Jeffrey Casper ,  Clay Ross ,  D. Scott Seaton ,  Christian Gellrich ,  Michael Cutter ,  James Binnion

发明人： Michael Kirkpatrick ,  Jeffrey Casper ,  Clay Ross ,  D. Scott Seaton ,  Christian Gellrich ,  Michael Cutter ,  James Binnion

IPC分类号： G01C200

CPC分类号： G01S5/0027 ,  G01S1/725 ,  G01S15/74 ,  G01S19/10 ,  G01S19/14 ,  G01S19/46 ,  G01S19/48 ,  G01S2205/002

摘要： An integrated indoor and outdoor positioning system and method. A first communication unit aperiodically emits an ultrasonic signal. A second communication unit receives the ultrasonic signal and transmits an identification signal in response to receiving the ultrasonic signal. One of the two communication units is placed at a predetermined position and the other of the two communication units is placed with an object. Identification information obtained from the identification signal is used to determine position information indicating that the object is at the predetermined position. The first communication unit is placed at the predetermined position and the second communication unit accompanies the object. Alternatively, the first communication unit accompanies the object and the second communication unit is placed at the predetermined position. One of the two communication units may also include a GPS receiver for receiving GPS signals from a plurality of satellites or pseudolites and computing position information therefrom. The GPS receiver applies differential GPS corrections computed by a GPS reference receiver to improve the accuracy of the position information. Position information is transmitted to a base station over an assigned radio frequency and during a time slot allocated to the communication unit that is transmitting the position information.

摘要翻译： 一体化室内外定位系统及方法。 第一通信单元非周期性地发射超声波信号。 第二通信单元接收超声波信号并且响应于接收到超声波信号而发送识别信号。 两个通信单元中的一个被放置在预定位置，并且两个通信单元中的另一个放置有对象。 使用从识别信号获得的识别信息来确定表示物体在预定位置的位置信息。 第一通信单元被放置在预定位置，并且第二通信单元伴随对象。 或者，第一通信单元伴随对象，并且第二通信单元被放置在预定位置。 两个通信单元中的一个还可以包括用于从多个卫星或伪卫星接收GPS信号并从其计算位置信息的GPS接收器。 GPS接收机应用由GPS参考接收机计算的差分GPS校正，以提高位置信息的准确性。 位置信息通过分配的射频以及分配给发送位置信息的通信单元的时隙发送到基站。

公开(公告)号：US06490522B2

公开(公告)日：2002-12-03

申请号：US10057925

申请日：2002-01-29

申请人： Hiroshi Sugiyama ,  Miwako Doi

发明人： Hiroshi Sugiyama ,  Miwako Doi

IPC分类号： G01C200

CPC分类号： G01C21/3453 ,  G01C21/20

摘要： An input unit indicates a departure point and a destination point on map information. A calculation unit extracts a plurality of routes each connected from the departure point to the destination point from the map information, and calculates a guidance demand degree of arbitrary points along each of the plurality of routes. A guidance demand degree is an evaluation value of the point based on a linearity of route, a complexity of route junction, and a change of route width. A route selection unit selects one route from the plurality of routes based on the guidance demand degree of each route. A guidance generation unit generates guidance information of the point decided to guide based on the guidance demand degree along the one route. A presentation unit presents the guidance information to a user.

公开(公告)号：US06377890B1

公开(公告)日：2002-04-23

申请号：US09582999

申请日：2000-07-10

申请人： Katsuji Doi

发明人： Katsuji Doi

IPC分类号： G01C200

CPC分类号： G08G1/096827 ,  G01C21/36 ,  G01C21/3688 ,  G06Q10/02 ,  G06Q30/0283 ,  G06Q30/0284

摘要： Route guiding information is displayed on the basis of set information and positional data when set information and positional data are set by a keyboard or are transmitted from a sensor BOX 12.

摘要翻译： 当通过键盘设置设置信息和位置数据时，基于设置信息和位置数据显示路线引导信息，或者从传感器盒12发送。