Method and apparatus for feedback of trainline status to the central processor of a locomotive throttle controller
First Claim
1. In an electronically controlled locomotive throttle controller system having a central processor unit and a plurality of trainlines, such trainlines carrying binary voltage signals derived from corresponding binary signals in such central processor unit, a method for transmitting, for a group of such trainlines, herein numbered as NT, such binary voltage signals back to such central processor unit for diagnostic purposes, said method comprising the steps of:
- (a) applying, for such group of NT trainlines, their such binary voltage signals to a frequency generator which generates a signal having a frequency characteristic of such binary voltage signals, said frequency having a different value for every possible combination of binary signals from such trainlines, said signal being herein referred to as a frequency signal;
(b) transmitting said frequency signal back to such central processor unit, said transmitting accomplished using one of a wire pair, a wire having reference to a ground common with other circuits, and an optical signal path; and
(c) processing said frequency signal, in such central processor unit, to recover NT binary signals corresponding to said binary voltage signals on such trainlines in said group of trainlines, and making said binary signals available for diagnostic purposes in said central processor unit.
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Abstract
In an electronically controlled RAILWAY locomotive throttle controller system having a central processor unit and a plurality of trainlines, such trainlines carrying binary voltage signals derived from corresponding binary signals in such central processor unit, a method for transmitting, for a group of said trainlines, herein numbered as NT, the binary voltage signals back to such central processor unit for diagnostic purposes. Such method includes the steps of applying, for the group of NT trainlines, their binary voltage signals to a frequency generator which will generate a signal having a frequency characteristic of such binary voltage signals. The frequency having a different value for every possible combination of binary signals from such trainlines. Transmitting such frequency signal back to the central processor unit and processing such frequency signal, in the central processor unit, to recover NT binary signals corresponding to such binary voltage signals on the trainlines in such group of trainlines.
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Citations
20 Claims
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1. In an electronically controlled locomotive throttle controller system having a central processor unit and a plurality of trainlines, such trainlines carrying binary voltage signals derived from corresponding binary signals in such central processor unit, a method for transmitting, for a group of such trainlines, herein numbered as NT, such binary voltage signals back to such central processor unit for diagnostic purposes, said method comprising the steps of:
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(a) applying, for such group of NT trainlines, their such binary voltage signals to a frequency generator which generates a signal having a frequency characteristic of such binary voltage signals, said frequency having a different value for every possible combination of binary signals from such trainlines, said signal being herein referred to as a frequency signal; (b) transmitting said frequency signal back to such central processor unit, said transmitting accomplished using one of a wire pair, a wire having reference to a ground common with other circuits, and an optical signal path; and (c) processing said frequency signal, in such central processor unit, to recover NT binary signals corresponding to said binary voltage signals on such trainlines in said group of trainlines, and making said binary signals available for diagnostic purposes in said central processor unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a locomotive throttle controller system having a central processor unit and a plurality of trainlines, such trainlines carrying binary voltage signals derived from corresponding binary signals in such central processor, an apparatus for transmitting for a group of such trainlines, herein numbered as NT, such binary voltage signals back to such central processor unit for diagnostic purposes, which comprises:
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(a) a frequency generator having means for receiving such binary voltage signals from such trainlines and generating a signal having a frequency characteristic of such binary voltage signals, said frequency having a different value for every possible combination of binary signals from such trainlines, said signal being herein referred to as a frequency signal; (b) a first means connected to such central processor unit for transmitting said frequency signal back to such central processor unit, said first means is one of a wire pair, a wire having reference to a ground common with other circuits, and an optical signal path; and (c) a second means disposed in such central processor unit, for processing said frequency signal to recover NT binary signals corresponding to such binary voltage signals on such trainlines in such group of trainlines. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification