Fusing of sensor data of a vehicle with sensor data of a telecommunications device

A method for determining a data set by means of a telecommunications device, wherein the data set represents a use of a predetermined vehicle, wherein the telecommunications device comprises a device for determining a geocode and an inertial sensor device, the method comprising the following steps:

• a) establishing a communication connection between the telecommunications device and the predetermined vehicle,
• b) detecting a movement pattern of the telecommunications device which is associated with a state of a vehicle movement, the movement pattern being determined by evaluating measurement data from the inertial sensor device,
• c) retrieving a predetermined number of status reports from the predetermined vehicle, each status report storing values for a number of physical parameters associated with the predetermined vehicle,
• d) determining a comparison value based on the values of at least one physical parameter stored in the status reports and based on values for corresponding physical parameters provided by the telecommunications device, and
• e) if the comparison value satisfies a predetermined criterion, determining the data set by fusing values from continuously retrieved status reports of the predetermined vehicle with a number of values for physical parameters provided by the telecommunications device.