发明名称 |
Detection system and method for railway track circuits using BPSK modulated coding |
摘要 |
The present invention relates to a system for detecting the presence or absence of a rail vehicle (2) on a track section unit (3) of a track (1), comprising:
- a track section unit transmitter (5) generating a BPSK signal that carries a digital message which is transmitted into the track section unit (3) and carries a unique code dependent upon the track section unit (3), and
- at least one track section unit receiver (7) of said BPSK signal, the receiver (7) only indicating that the track section unit (3) is clear having received and demodulated a BPSK signal, found that the correlation of the demodulated BPSK signal with the unique code is greater than or equal to a preset threshold and found that said correlation represents a pre-determined minimum proportion of the total energy of the demodulated BPSK signal. The present invention also relates to a method for monitoring such a system.
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申请公布号 |
EP2100792(A1) |
申请公布日期 |
2009.09.16 |
申请号 |
EP20080290231 |
申请日期 |
2008.03.11 |
申请人 |
BOMBARDIER TRANSPORTATION GMBH |
发明人 |
RADMORE, MATTHEW;CAI, JING;STEWART, KEVIN;SMITH, JOHN PARKER;MILLAR, ANDREW |
分类号 |
B61L1/18 |
主分类号 |
B61L1/18 |
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