Unmanned railway cross alarm, automatic system

Unmanned railway cross alarm, automatic system

Unmanned railway cross alarm, automatic system

Unmanned Railway Crossing Alarm System

Automatic train detection system with alarm for railway crossing

Technical Document

The unmanned railway crossing alarm system works 24x7 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 is 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 is detected siren is alerted at the crossing along with flashing light

Step4: Once the train has departed the unmanned crossing, siren / alarm stops An automatic barrier gate can be controlled along with the alarm system    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:

  • 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 needs to be mounted at not less than 10-12 feet from the ground level
  • No false detection
  • Trains with flat open wagons, passenger coach, single running engine can be detected

 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.