公开(公告)号：US06229478B1

公开(公告)日：2001-05-08

申请号：US09187690

申请日：1998-11-05

Applicant: Zoltan Biacs ,  John Rogers ,  Jinye Li

Inventor： Zoltan Biacs ,  John Rogers ,  Jinye Li

IPC: H04B7185

CPC classification number: G01S19/256 ,  G01S19/05 ,  G01S19/07 ,  G01S19/252 ,  G01S19/258 ,  G01S2205/008

Abstract: A method and system for rapidly initializing a rover unit in a networked system. In one embodiment, the present invention acquires rover unit initialization data at a reference station. In one embodiment, the rover unit initialization data is selected from the group consisting of: ephemeris data, almanac data, satellite health data, ionospheric data, UTC and GPS time and approximate rover position information. In the present embodiment, the present invention then communicatively couples the reference station to a server station having memory for storing the rover unit initialization data. After communicatively coupling the reference station to the server station, the present embodiment transfers the rover unit initialization data from the reference station to the server station. The present embodiment then communicatively couples the rover unit to the server station. Next, the present embodiment supplies the rover unit initialization data from the server station to the rover unit. As a result, in the present embodiment, the rover unit is able to be initialized and obtain a first position fix without requiring the rover unit to acquire the initialization data directly from at least one satellite. In another embodiment, the present invention provides a method and system for providing differentially corrected position information to a rover unit in a networked system. In still another embodiment, the present invention provides a method and system for providing both initialization data and differentially corrected position information to a rover unit in a networked system.

Abstract translation: 一种用于在联网系统中快速初始化流动站单元的方法和系统。 在一个实施例中，本发明在参考站获取流动站单元初始化数据。 在一个实施例中，流动站单元初始化数据选自包括：星历数据，历书数据，卫星健康数据，电离层数据，UTC和GPS时间以及近似流动站位置信息。 在本实施例中，本发明然后将参考站通信地耦合到具有用于存储流动站单元初始化数据的存储器的服务器站。 在将参考站通信耦合到服务器站之后，本实施例将流动站单元初始化数据从参考站传送到服务器站。 本实施例然后将流动站单元通信地耦合到服务器站。 接下来，本实施例将流动站单元初始化数据从服务器站提供给流动站单元。 结果，在本实施例中，能够初始化流动站单元并获得第一定位，而不需要流动站单元从至少一个卫星直接获取初始化数据。 在另一个实施例中，本发明提供一种用于向联网系统中的流动站单元提供差分校正的位置信息的方法和系统。 在另一个实施例中，本发明提供一种用于向网络系统中的流动站单元提供初始化数据和差分校正的位置信息的方法和系统。