Remote locomotive control
First Claim
1. A remote locomotive control system comprising a slave controller configured to receive data strings from a plurality of remote transmitters, the slave controller responsive exclusively to an acquire signal received from one of the remote transmitters for configuring the slave controller to control one or more control functions of the locomotive as a function of one or more data strings received exclusively from said one remote transmitter, wherein:
- each data string includes one or more bits related to one or more safety functions of the locomotive, one or more bits related to one or more control functions of the locomotive and one or more bits related to the acquire signal;
the acquire signal is an acquire bit;
from a quiescent state where the slave controller is not responsive to the one or more bits related to the one or more control functions of the locomotive, in response to receiving from a first remote transmitter the acquire bit thereof in a first binary state, the slave controller commences controlling the one or more control functions of the locomotive as a function of the receipt by the slave controller from the first remote transmitter of the one or more bits related thereto; and
in response to receiving from the first remote transmitter the acquire bit thereof in a second binary state, the slave controller returns to its quiescent state.
1 Assignment
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Accused Products
Abstract
A remote locomotive control system includes a slave controller configured to receive data strings from remote transmitters. The slave controller is responsive to an acquire signal received from one of the remote transmitters for configuring the slave controller to control one or more control functions of the locomotive as a function of one or more data strings received exclusively from the one remote transmitter. However, the slave controller is configured so that any remote transmitter can control safety functions of the locomotive via the slave controller.
24 Citations
12 Claims
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1. A remote locomotive control system comprising a slave controller configured to receive data strings from a plurality of remote transmitters, the slave controller responsive exclusively to an acquire signal received from one of the remote transmitters for configuring the slave controller to control one or more control functions of the locomotive as a function of one or more data strings received exclusively from said one remote transmitter, wherein:
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each data string includes one or more bits related to one or more safety functions of the locomotive, one or more bits related to one or more control functions of the locomotive and one or more bits related to the acquire signal; the acquire signal is an acquire bit; from a quiescent state where the slave controller is not responsive to the one or more bits related to the one or more control functions of the locomotive, in response to receiving from a first remote transmitter the acquire bit thereof in a first binary state, the slave controller commences controlling the one or more control functions of the locomotive as a function of the receipt by the slave controller from the first remote transmitter of the one or more bits related thereto; and in response to receiving from the first remote transmitter the acquire bit thereof in a second binary state, the slave controller returns to its quiescent state. - View Dependent Claims (2, 3, 4)
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5. The system as set forth 4, wherein the slave controller is responsive to the one or more bits related to safety functions received from at least one of the first and second remote transmitters regardless of the states of the acquire bits thereof.
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6. A remote locomotive control system comprising:
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a first transmitter configured for radio transmitting a first data address and first acquire data; a second transmitter configured for radio transmitting a second data address and second acquire data, the first and second transmitters also configured for radio transmitting control data regarding control functions of the locomotive and safety data related to safety functions of the locomotive; and a slave controller for radio receiving the data addresses, the acquire data, the control data and the safety data from the first and second transmitters, wherein the slave controller is responsive; to safety control signals received from one or both of the first and second transmitters for controlling safety functions of the locomotive; and exclusively to the first acquire data received from the first transmitter for enabling the slave controller to control control functions of the locomotive as a function of the control data received from the first transmitter and to block control of control functions of the locomotive as a function of control data received from the second transmitter, wherein the slave controller includes; a first receiver storing the first data address; a second receiver storing the second data address; a first image table coupled to receive first acquire data, control data and safety data from the first receiver; and a second image table coupled to receive second acquire data, control data and safety data from the second receiver, wherein; the first receiver is responsive to the first data address for passing the first acquire data, the control data and the safety data received by the first receiver to the first image table; and the second receiver is responsive to the second data address for passing the second acquire data, the control data and the safety data received by the second receiver to the second image table. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification