Patent ID: 6980813
Filing Date: 2005-12-27
Classification: G01C,G01S,G08G

Abstract:
1. A system for locating and tracking at least one rover unit from a mobile controller unit comprising: a mobile controller unit comprising: a rover unit comprising: the mobile controller unit being programmed to have a find feature which includes selection of a command to establish a radio communication link with the rover unit and to obtain the rover unit's position information from the rover unit's GPS receiver/processor module and, using the controller unit's position information from its GPS receiver/processor, to calculate the relative spatial position of the controller and the rover and the controller unit being further equipped to obtain its heading and programmed to use the heading to calculate the bearing to the rover unit relative to the controller unit's heading and position and is programmed to calculate absolute positions of the controller unit and the rover unit on a map whereupon the selected one of a bearing line to the rover unit relative to the controller unit's heading and position or the absolute map positions of the controller unit and the rover unit are available to be displayed on the display upon selection by the user.