Unmanned railway cross alarm, automatic system

Unmanned railway cross alarm, automatic system

Unmanned Railway Crossing Alarm System

Technical Specification and operation document

The unmanned railway crossing alarm system works 24×7 all days of a year, automatically without any human intervention.  This solution is implemented to avoid accidents in the unmanned railway crossing. Following is how the system works:

Step1: Incoming train presence detected (4 to 6 Kilometers) before the level crossing

Step2: Signal is send via long distance wireless communication, to receiver pole (installed near the unmanned crossing)

Step3: When train presence detected siren blows, to aler at the unmanned crossing 

Step4: Once the train departs, the unmanned crossing, siren / alarm stops. It is also possible to attach a barrier gate to the crossing alarm.  This alerts vehicles or passers not to cross the railway track, till the train has moved out

  • Total 3 or 5 or 7 poles needed for this solutions (installation)
  • All poles are powered up by solar panel charger (with internal battery), also provision of 240VAC supply for charging
  • Minimum 2 poles on either side of the crossing and 1 pole at the crossing
  • Number of transmitter / repeater poles can be increased to cover longer range (say 2-8 Km if needed)

Other salient features of unmanned railway crossing alarm:

  • Completely automatic system and no need of human intervention (after installation)
  • No need of lying cables as the complete system works on RF wireless technology
  • System has provision for AC as well as solar charging (internal machine works on battery)
  • Train sensors (on the pole) at height not less than 10 feet (away from reach of human)
  • False signaling avoided by electronic circuits (as there are multiple poles to send and receive signals)
  • Once the train has crossed the road crossing, siren and flasher automatically stops
  • Even for curved tracks this is not a problem as long as present pole transmitter is visible to the next receiver pole
  • The train detection sensors have no effect with fog or flying birds nearby
  • The sensor should mount no less than 10-12 feet from the ground level
  • No false detection
  • It is also possible to detect, trains with flat open wagons, passenger coach, single running engine

 So even if the train is approaching at incredibly fast speed (say at) 200Km/h it takes around 2 minutes before it reaches the crossing, from a distance of 6 Kms.  Electronic wireless signalling can done within 5-10 seconds from the time train is detected from the 1st pole.