Patent ReferencesSurvey system and method for real time collection and processing of geophysicals data using signals from a global positioning satellite network Method for analyzing and generating optimal transportation schedules for vehicles such as trains and controlling the movement of vehicles in response thereto Autonomous vehicle automatically running on route and its method Systems and methods for planning the scheduling travel routes Route guidance on/off-route state filter System and method for navigating vehicle along set route of travel Patent #: 5371678 InventorAssigneeApplicationNo. 285130 filed on 08/02/1994US Classes:701/207, Employing position determining equipment73/178R, NAVIGATION340/988, VEHICLE POSITION INDICATION340/990, With map display340/995.21, Off course, route re-search342/357.07, Tracking or monitoring (i.e., lost or stolen vehicles)342/357.08, Determining relative position (e.g., distance or direction)342/357.13, With storage device (i.e., map or database)701/200NAVIGATIONExaminersPrimary: Teska, Kevin J.Assistant: Louis-Jacques, Jacques H. Attorney, Agent or FirmInternational ClassG06G 007/78AbstractA method for monitoring the movement of a vehicle along a selected route R to determine whether the vehicle is (i) adhering to that route and/or (ii) adhering to a selected time schedule along that route. Adherence to the route R requires that the vehicle travel within a corridor of selected positive width that surrounds a path defining the route R. Adherence to the time schedule requires that the vehicle move past one or more specified locations along or adjacent to the route R within a specified time interval. The method provides an electronic map with a visually perceptible display that indicates the present location of the vehicle and allows implementation of a snap-to-route command that displays the location on the route R that is closest to the present location of the vehicle. | |