Laser Based - Along Track Configuration

Big progress toward an effective End Of Track Safety System was made with this first configuration of an Along The Track Beam Interruption system.  A visible light detector is located in the tracks and a Laser Diode beam is aimed at it.  When the beam hits the detector, the electronic circuit passes power to the track.  However, when the beam is interrupted by a Car or Engine, the power to the track is turned off, stopping the train from reaching the End Of Track.  The system worked for all Trains - traveling at 60 MPH equivalent.  Better performance was achieved with a steeper beam path toward a sensor closer to the End Of Track.  Testing will continue with other types of beams - IR and Ultrasound.  Check out Sketchi Railroading on FB see all the developments toward a safer, but still Sketchi railroad experience.