| 摘要 |
<p>PURPOSE:To obtain a small and highly reliable device with a high fail-safe performance, by making it possible to compose an ATC device only of a parameter- setting ROM, an operating section LSI and circuits for input and output signals for demodulation of waveform, shaping and amplification. CONSTITUTION:An ATC signal received by a receiver 1 from a track circuit is demodulated by a demodulating circuit 2 and put into an operating section LSI 5 as a frequency signal for discriminations of a control speed signal. A speed signal from a speed generator 3 is converted to a speed pulse by a waveform-shaping circuit 4 and put into an operating section LSI 5. The operating section LSI 5, at first, compares the ATC signals with parameters in an ROM, one by one, to determine which one of a plurality of control speeds is designated, generates a reference pattern, which is proportional to this designated control speed, by using another parameter in the ROM 6, and puts into a braking signal by comparing the speed pulse with this reference pattern.</p> |
