Suunto Oy

Olli-Pekka Koistinen

Erik Lindman

Mikko Martikka

Heikki Nieminen

Tuomas Hapola

According to an example aspect of the present invention, there is provided a method and system for tracking and determining a position of an object along a planned route, the method comprising: providing information of at least one predetermined route and determining a planned route based on the information of the at least one predetermined route; determining a primary position of the object based on at least one of: signals received from a satellite positioning system and the planned route; tracking a first position of the object via the satellite positioning system; and comparing whether the first position matches with the planned route. If the first position is found to deviate from the planned route, determining a secondary position of movement of the object based on measurements of at least one of: an inertia sensor and an acceleration sensor; wherein at least one of acceleration, speed and direction of the object is measured. Determining the secondary position indication of the object based on the first position and the secondary position of movement of the object; comparing whether the secondary position indication matches with at least one of: the planned route and the at least one predetermined route, and determining the current position of the object based on: at least one of: the at least one predetermined route and the planned route; and at least one of: the first position and the secondary position indication.

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Vantaa, Finland

Olli-Pekka Koistinen