초록 ▼

A train location system and method of determining track occupancy utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of

A train location system and method of determining track occupancy utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of track occupancy, position, direction of travel, velocity, etc. Various navigation solutions are combined together to provide the desired information outputs using an optimal estimator designed specifically for rail applications and subjected to motion constraints reflecting the physical motion limitations of a locomotive. The system utilizes geo-reconciliation to minimize errors and solutions that identify track occupancy when traveling through a turnout.

대표청구항 ▼

A train location system and method of determining track occupancy utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of

A train location system and method of determining track occupancy utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of track occupancy, position, direction of travel, velocity, etc. Various navigation solutions are combined together to provide the desired information outputs using an optimal estimator designed specifically for rail applications and subjected to motion constraints reflecting the physical motion limitations of a locomotive. The system utilizes geo-reconciliation to minimize errors and solutions that identify track occupancy when traveling through a turnout. te surfaces of the card. 5. The integrated circuit card according to claim 1, wherein the number of integrated electronic modules mounted in the card is two, and wherein the two integrated electronic modules are mounted in the same surface of the card. 6. The integrated circuit card according to claim 1, comprising four integrated electronic modules mounted in the card, wherein the integrated electronic modules are arranged such that each of two pairs of modules is positioned in a back-to-back relationship. 7. The integrated circuit card according to claim 1, wherein two integrated electronic modules are provided as one semiconductor chip, said semiconductor chip having contact terminals on both surfaces of the card. 8. The integrated circuit card according to claim 1, wherein the integrated circuit card is selected from the group consisting of a SIM card, a MultiMedia card, a secure digital memory card, a flash memory card, and a solid-state memory card. 9. The integrated circuit card according to claim 8, wherein the integrated circuit card is a subscriber identity module card. 10. The integrated circuit card according to claim 9, wherein the integrated circuit card is a plug-in sized subscriber identity module card. 11. The integrated circuit card according to claim 10, wherein the integrated circuit card has dimensions as defined by the International Standards Organisation for integrated circuit cards. 12. The integrated circuit card according to claim 9, wherein the integrated circuit card has dimensions as defined by the International Standards Organisation for integrated circuit cards.