Position monitoring system for a mobile machine

G - Physics – 01 – S

Patent

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Details

G01S 19/26 (2010.01) G01S 19/13 (2010.01)

Patent

CA 2759040

A system (10) including a mobile machine (20) and a central control station (30) is provided. The mobile machine includes a communication device (70) and a position monitoring system (50) including a receiver (55) configured to receive position data from a positioning satellite (40) and generate a position signal. The position monitoring system also includes an inertial navigation unit (60) including a sensor (61, 62, 63) configured to measure a parameter of the mobile machine and generate a movement signal. The position monitoring system also includes a controller (65) configured to receive the position signal and the movement signal, detect an unavailability of the position signal, calculate a position parameter, determine whether a difference between a first and a second value of a parameter exceeds a predetermined threshold, and generate a warning signal. The central control station is configured to communicate with the controller, receive the position signal and/or the movement signal, and monitor the position of the mobile machine.

L'invention porte sur un système (10) comprenant une machine mobile (20) et une station centrale de commande (30). La machine mobile comprend un dispositif de communication (70) et un système de surveillance de position (50) comprenant un récepteur (55) configuré pour recevoir des données de position à partir d'un satellite de positionnement (40) et générer un signal de position. Le système de surveillance de position comprend également une unité de navigation par inertie (60) comprenant un détecteur (61, 62, 63) configuré de façon à mesurer un paramètre de la machine mobile et générer un signal de mouvement. Le système de surveillance de position comprend également un dispositif de commande (65) configuré pour recevoir le système de position et le signal de mouvement, détecter une indisponibilité du signal de position, calculer un paramètre de position, déterminer si une différence entre une première et une seconde valeurs d'un paramètre dépasse ou non un seuil prédéterminé, et générer un signal d'avertissement. La station centrale de commande est configurée de façon à communiquer avec le dispositif de commande, recevoir le signal de position et/ou le signal de mouvement, et surveiller la position de la machine mobile.

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