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Tender invited for Development of Train Collision Avoidance System

Tender invited for Development of Train Collision Avoidance System

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1.5.21 The typical minimum in<strong>for</strong>mation to be stored in user programmable field <strong>of</strong><br />

RFID Tags is shown below:<br />

ABT/MBT allowed in Nominal direction : 1 bit<br />

ABT / MBT allowed in Reverse Direction : 1 bit<br />

Unique ID <strong>of</strong> RFID Tag Set in Zone – 8 bits<br />

Distances to next RFID tags and next signals in Nominal and Reverse Directions in meters<br />

Nominal Direction Reverse Direction<br />

Remarks<br />

X15 X14 X13 X12 X11 X10 x9 x8 x7 x6 x5 x4 x3 x2 x1 x0<br />

0 0 0 0 0 0 TCAS Territory Exit<br />

0 0 1 0 0 1 TCAS Block Section ahead<br />

0 1 0 0 1 0 Spare<br />

0 1 1 0 1 1 Spare<br />

1 0 0 1 0 0 Dead Stop ahead<br />

Station Sec only Normal<br />

1 0 1 1 0 1 Movement ahead<br />

Station Section only Shunting<br />

1 1 0 1 1 0 Movement ahead<br />

Station Section Normal and<br />

1 1 1 1 1 1 Shunting movement ahead.<br />

Neither Converging nor<br />

0 0 0 0<br />

diverging (Not near turnout)<br />

0 1 0 1 Converging at Turnout<br />

1 0 1 0 Diverging at Turnout<br />

1 1 1 1 Spare<br />

No single Signal identified<br />

0 0 0 0 0 0<br />

ahead<br />

Approaching Stop Signal<br />

0 0 1 0 0 1<br />

approx. 3000m ahead<br />

Approaching Stop Signal<br />

0 1 0 0 1 0<br />

approx. 2000m ahead<br />

Approaching Stop Signal 100-<br />

0 1 1 0 1 1<br />

200m ahead<br />

Approaching Stop Signal 70-<br />

1 0 0 1 0 0<br />

100m ahead<br />

Approaching Stop Signal 50-<br />

1 0 1 1 0 1<br />

70m ahead<br />

Last Stop Signal (LSS) 1500 ~<br />

1 1 0 1 1 0<br />

2000 m in rear<br />

1 1 1 1 1 1 At Stop/Permissive Signal Foot<br />

Page 7 <strong>of</strong> 72 <strong>of</strong> Part-II Sec-II

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