Patent ID: 8330649

Claim:
Method for determining whether a moving entity is moving in a predetermined direction, comprising the steps of: providing a moving entity having positioning unit and receiving unit, providing a sender sending data dependent on a position of a point of interest and a position of a reference point, receiving said data sent by said sender on the moving entity, providing a first position of the moving entity at a first point in time by the positioning unit, calculating a first distance between the moving entity and the point of interest based on the received data and the first position, calculating a second distance between the moving entity and the reference point based on the received data and the first position, providing a second position of the moving entity at a second point in time by the positioning unit, calculating a third distance between the moving entity and the point of interest based on the received data and the second position, calculating a fourth distance between the moving entity and the reference point based on the received data and the second position, and determining on the moving entity whether the moving entity is moving in the predetermined direction based on the received data, the first position of the moving entity, the second position of the moving entity, the first distance, the second distance, the third distance, and the fourth distance.