Tender invited for Development of Train Collision Avoidance System
Tender invited for Development of Train Collision Avoidance System
Tender invited for Development of Train Collision Avoidance System
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ISO 9001: 2008 Effective from 18.06.2012 RDSO/SPN/196/2012 Version 3.1.1<br />
Document Title : Specification <strong>of</strong> <strong>Train</strong> <strong>Collision</strong> <strong>Avoidance</strong> <strong>System</strong><br />
Annexure-IX<br />
Loco TCAS unit : Mode vs Function Matrix<br />
Mode <strong>of</strong> Loco TCAS<br />
unit→<br />
Functions↓<br />
Normal<br />
Mode<br />
Controlled<br />
Mode<br />
Restricted<br />
Mode<br />
Staff<br />
Responsibl<br />
e Mode<br />
Coupled/<br />
Banking<br />
operation<br />
Isolation<br />
Mode<br />
Failure<br />
Mode<br />
Unfitted<br />
Mode<br />
Reverse<br />
Mode<br />
Checking RFID linking<br />
consistency<br />
√<br />
Maintain sequence <strong>of</strong> radio<br />
packets received<br />
√<br />
Check correctness <strong>of</strong> radio<br />
messages<br />
√ √ √<br />
√<br />
Prevention <strong>of</strong> Side<br />
<strong>Collision</strong> in Block Section<br />
√ √ √<br />
√<br />
Determine train location √ √ √ √<br />
Determine train speed √ √ √ √<br />
Protection <strong>of</strong> Reverse<br />
Movement<br />
√ √ √<br />
Prevention <strong>of</strong> SPAD<br />
Braking due to no<br />
√<br />
communication from<br />
2000m from FSS on<br />
approach <strong>of</strong> station<br />
√<br />
Brake due to loss <strong>of</strong> more<br />
than one packet<br />
√<br />
√<br />
Transmit normal message √ √ √ √<br />
Transmit SOS message √ √ √ √<br />
Transmit Side <strong>Collision</strong><br />
Message<br />
√ √ √<br />
√<br />
Transmit <strong>Train</strong> Parted/<br />
Jumbled message<br />
√ √<br />
√<br />
Transmit Signal Aspect<br />
request message<br />
√<br />
Determine EOA, Danger<br />
Point, etc.<br />
√ √<br />
Determine Most Restrictive Speed Pr<strong>of</strong>ile based on<br />
• MA √<br />
• TO speed √<br />
• Control Mode train<br />
• SOS message, Side<br />
√ √ √<br />
<strong>Collision</strong> Message,<br />
<strong>Train</strong> Parted/ Jumbled<br />
message<br />
√ √<br />
√ √<br />
Determine <strong>Collision</strong> √<br />
Acquisition <strong>of</strong> TIN √ √ √ √ √ √ √ √<br />
Ceiling Speed Supervision<br />
based on Mode<br />
√ √ √<br />
√<br />
Command Emergency When<br />
Brake<br />
requir<br />
ed<br />
√<br />
√<br />
‘√’ symbol in a cell indicates that a particular function shall be carried out in that particular mode <strong>of</strong><br />
Loco unit.<br />
Signal Directorate RDSO/Lucknow Page 53 <strong>of</strong> 56<br />
Stop Mode
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