Safety system for mounting on front of train to avoid killing people on track, comprises infrared and ultrasonic sensors for deploying airbags used to throw person clear of train

摘要

The system comprises an infrared sensor (2) for detecting the presence of a living person or animal on the track and which is used in combination with an ultrasonic sensor (2a) to determine the distance between the train and this person. An inner airbag (1) is deployed, taking into account the speed of the train, and when the person strikes this airbag an outer airbag (1a) is deployed, resulting in the person being thrown clear of the train to the left or right-hand side of the track.