Patent ID: 8036784
Filing Date: 2011-10-11
Classification: B61L

Abstract:
1. A method for verifying the integrity of a train having a predetermined length when the train passes over a detection circuit having a predetermined length, and the train having on-board odometry comprising the steps of: a) storing a first odometric reference of the train at an occupation start time, when the train occupies the detection circuit; b) storing a second odometric reference of the train at a leaving time when the train leaves the detection circuit, an odometer providing the first and second odometric references, the odometer having a predetermined relative uncertainty; c) calculating the distance traveled by the train between the occupation start time and the leaving time based on a difference between the first and the second odometric references previously stored; d) calculating a length of the train, the length being equal to the calculated distance traveled less the length of the detection circuit; e) verifying the integrity of the train by verifying the calculated length of the train is greater than the predetermined length of the train less the length of a wagon, the distance traveled being expressed as a confidence interval between a minimum distance and a maximum distance so a probability the train has not traveled a distance included within the confidence interval is less than a predetermined probability, and the length of the train being calculated as the difference between the minimum distance and the length of the detection circuit.