Device and method for positioning and controlling railway vehicles with ultra-large bandwidth
First Claim
1. A device for positioning and controlling rail vehicles (4) comprising:
- fixed stations (1) comprising a first signal transmitter and receiver (2); and
a central control station (3) to which are connected the fixed stations (1) and controlling a transport zone,wherein,each rail vehicle (4) comprises second signal transmitter and receiver (6) containing a specific identifier of a transmitter and at least one message,the signals transmitted by the first transmitter and receiver (2) of the fixed stations (1) contain a specific identifier of the transmitter and at least one message,the central control station (3) sends rail operation control orders,each rail vehicle (4) and each fixed station (1) include processor (8) for determining the identifier and at least said message of each signal received,the signals of the first and second transmitter and receiver (2, 6) are non-sinewave radio signals with a very large passband whereof a frequency spectrum ranges between 1 and 10 GHz.
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Accused Products
Abstract
A device and method for positioning and controlling railway vehicles. The device includes fixed stations (1) including first elements for transmitting/receiving (2) signals and a central control station (3) to which the fixed stations (1) are connected. Each railway vehicle (4) includes second elements for transmitting/receiving (6) signals. The signals transmitted by the first and second transmitting/receiving elements (2, 6) including an identifier specific to the transmitter and at least one message and consist in non-sinusoidal radio signals with very large bandwidth whose spectrum ranges between 1 and 10 GHz. Each railway vehicle (4) and each fixed station (1) include processing elements (8) for determining the identifier and the at least one message of each received signal. The central control station (3) sends command control instructions.
45 Citations
17 Claims
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1. A device for positioning and controlling rail vehicles (4) comprising:
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fixed stations (1) comprising a first signal transmitter and receiver (2); and a central control station (3) to which are connected the fixed stations (1) and controlling a transport zone, wherein, each rail vehicle (4) comprises second signal transmitter and receiver (6) containing a specific identifier of a transmitter and at least one message, the signals transmitted by the first transmitter and receiver (2) of the fixed stations (1) contain a specific identifier of the transmitter and at least one message, the central control station (3) sends rail operation control orders, each rail vehicle (4) and each fixed station (1) include processor (8) for determining the identifier and at least said message of each signal received, the signals of the first and second transmitter and receiver (2, 6) are non-sinewave radio signals with a very large passband whereof a frequency spectrum ranges between 1 and 10 GHz.
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2. The device according to claim 1, wherein each rail vehicle (4) comprising:
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a first processing lane of the first and second transmitter and receiver (2, 6) determines the position and the direction of said vehicle in the transport zone; and a second processing lane of the first and second transmitter and receiver (2, 6) determines an actual speed measurement of said vehicle, each of a first and second transmitter and receiver receives signals from the processor.
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3. The device according to claim 1, wherein each rail vehicle (4) comprising:
a third processing lane of the first and second transmitter and receiver (2, 6) determines passive obstacles or other vehicles on lanes receiving signals from said processor.
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4. The device according to claim 1, wherein a localisation in the transport zone, a speed and direction of each rail vehicle (4) are determined on the one hand, and a detection of obstacles is realised on the other hand, in real time and simultaneously.
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5. The device according to claim 1, wherein said specific identifier is obtained by pseudo-random encoding.
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6. The device according to claim 1, wherein the rail operation control orders transmitted by the central station (3) include navigation instructions of at least one rail vehicle (4).
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7. The device according to claim 6, wherein said orders comprise a communication for said rail vehicle (4).
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8. The device according to claim 1, wherein the central control station (3) includes a processing unit for centralising and processing data sent by the fixed stations (1) and displaying said data on a screen in real time.
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9. The device according to claim 2, wherein each rail vehicle (4) comprising:
a fourth processing lane of the first and second transmitter and receiver (2, 6) determines passive obstacles or other vehicles on lanes receiving signals from said processor.
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10. A method for positioning and controlling rail vehicles including fixed stations (1) comprising first signal transmitter and receiver (2) and a central control station (3) to which are connected the fixed stations (1),
wherein, each rail vehicle (4) comprises a second signal transmitter and receiver (6), a specific identifier is determined for each of the first and second transmitter and receiver (2, 6), said signals being non-sinewave radio signals with a very large passband whereof a frequency spectrum ranges between 1 and 10 GHz containing said identifier and at least one message, for each of the signals received by the fixed station (1) and by each rail vehicle (4) the identifier and at least said message of this signal are determined by processor (8), rail operation control orders are sent by the central control station (3).
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11. The method according to claim 10, wherein a transport zone controlled by the central station (3) and wherein the rail vehicles (4) are displaced, is divided into a grid of points defined by the repetition of a same elementary mesh of length D.
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12. The method according to claim 11, wherein the length D of the elementary mesh is set typically to several hundred meters.
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13. The method according to claim 12, wherein rail operation control orders are sent by the central control station (3) to each rail vehicle (4) so that a single vehicle (4) is included any time over the length D.
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14. The method according to claim 12, wherein rail operation control orders are sent by the central control station (3) to at least two rail vehicles to conduct a rendezvous manoeuvre over the length D.
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15. The method according to claim 11, wherein the length D of the elementary mesh is variable with time.
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16. The method according to claim 15 wherein the length D of the elementary mesh is determined in real time from the signals transmitted by each rail vehicle (4), said length being at least equal to the safety distance Dmin between each vehicle, the central station (3) sending rail operation control orders to each rail vehicle (4) for keeping said distance D between each vehicle.
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17. The method according to claim 10 wherein passive obstacles on lanes are determined by the second transmitter and receiver (6) and for each rail vehicle (4) in motion.
Specification