Tender invited for Development of Train Collision Avoidance System

ISO 9001: 2008 Effective from 18.06.2012 RDSO/SPN/196/2012 Version 3.1.1
Document Title : Specification of Train Collision Avoidance System
6. System Requirements
RFID reader & tag specifications & fitment
6.1. Each Loco unit shall have an RFID reader fitted underneath the locomotive
body for reading the information from RFID tags fitted on the track, connected
to MIE on RS 485 port.
6.2. The RFID reader shall be as per following technical specifications:
a. Suitable to be fitted underneath Locomotive body & shall be rugged enough
to withstand vibrations.
b. Suitable for reliable working at Locomotive speed upto 160 KMPH.
c. Frequency of operation – 865-867 MHz
d. Meeting EN 50121 or equivalent standard for EMI/ EMC.
e. Communication Protocol – EPCGEN2-ISO-1800-6C
f. Shall have minimum IP 65 protection.
g. Other requirements like environmental, climatic etc. as per RDSO/ SPN/144.
h. Under field operating conditions, RFID reader shall be able to read RFID tag
from a vertical distance of minimum 3 meters.
6.3. The RFID tags shall be fitted on the sleepers between the rails as per drawing
in Annexure-VIII.
6.4. RFID tag shall be as per following specifications:
a. Suitable for reliable working at RFID reader speed upto 160 KMPH.
b. Frequency of operation – 865-867 MHz
c. One time programmable with user programmable area of minimum 144bits.
d. Shall be able to work even when submerged in water.
e. Meeting EN 50121 or equivalent standard for EMI/ EMC
f. Communication Protocol – EPCGEN2-ISO-1800-6C/D
g. Shall have minimum IP 68 protection.
h. Other requirements like environmental, climatic etc. as per RDSO/ SPN/144.
i. Under field operating conditions RFID reader shall be able to read RFID tag
from a vertical distance of minimum 3 meters.
6.5. RFID tags shall be provided at following locations:
6.5.1. At not more than one kilometer on straight track (track without any points
taking off from it).
6.5.2. At both side fouling marks of a turnout.
6.5.3. at the Block entry i.e. at the foot of the Last Stop Signals of the station for
each block section.
6.5.4. at the Station entry i.e. at the end of the block overlap at the station for each
block section.
6.5.5. at the foot of the signal.
6.5.6. At the end of TCAS territory
6.6. RFID tags shall be one-time programmable & shall be programmed with
information in following pattern:
6.6.1. Track Identification Number (TIN) in Nominal Direction– 6 bits
6.6.2. Track Identification Number (TIN) in Reverse Direction– 6 bits
6.6.3. Absolute location in meters – 22 bits
6.6.4. Distance to next RFID tags in Nominal Direction in meters – 14 bits
6.6.5. Distance to next RFID tags in Reverse Direction in meters – 14 bits
6.6.6. Signal id – 8 bits
6.6.7. Unique ID of RFID Tag Set in Zone – 10 bits
6.6.8. Following Location based conditions are to be mapped as under:
Signal Directorate RDSO/Lucknow Page 23 of 56