Method of determining a position of a vehicle on a guideway
AssigneeThales Canada Inc.
InventorsCarl SCHWELLNUS, Colin BANTIN
Life of this patent
Estimating the term…
Abstract
A method of determining a position of a vehicle on a guideway includes detecting a position of the vehicle relative to a first reflective positioning element along the guideway. The method also includes detecting a unique identification code of a transponder along the guideway, wherein the transponder is located a first known distance along the guideway from the first reflective positioning element. The method further includes determining the position of the vehicle, using a position determining system, based on a modulated reflection signal received from the transponder, a first non-modulated reflection signal received from the first reflective positioning element, and the first known distance.
Claims21
A method of determining a position of a vehicle on a guideway, the method comprising:
- detecting a position of the vehicle relative to a first reflective positioning element along the guideway;
- detecting a unique identification code of a transponder along the guideway, wherein the transponder is located a first known distance along the guideway from the first reflective positioning element;
- and
- determining the position of the vehicle, using a position determining system, based on a modulated reflection signal received from the transponder, a first non-modulated reflection signal received from the first reflective positioning element, and the first known distance.
A method of determining a position of a vehicle on a guideway, the method comprising:
- emitting an interrogation signal from a position determining system on-board the vehicle;
- receiving a modulated reflection signal having a unique identification code by the position determining system, the modulated reflection signal being received from a transponder configured to receive the interrogation signal and emit the modulated reflection signal in response to the interrogation signal;
- receiving a first non-modulated reflection signal by the position determining system from a first reflective positioning element configured to receive the interrogation signal and to reflect the interrogation signal to form the first non-modulated reflection signal;
- and
- processing the modulated reflection signal and the first non-modulated reflection signal to determine the position of the vehicle on the guideway relative to the first reflective positioning element.
A method of determining a position of a vehicle on a guideway, the method comprising:
- detecting a position of the vehicle relative to a first reflective positioning element along the guideway;
- detecting a closest transponder of a plurality of transponders along the guideway, wherein the closest transponder is located a first known distance along the guideway from the first reflective positioning element;
- and
- determining the position of the vehicle, using a position determining system, based on a modulated reflection signal received from the closest transponder, a first non-modulated reflection signal received from the first reflective positioning element, and the first known distance.
The method of claim 18, wherein the heading is further based on a determination of an order by which the first non-modulated reflection signal and the second non-modulated reflection signal are received.
Dependencies are inferred from the claim text.