Sensor system, vehicle control system and driver information system for vehicle safety

A sensor system comprising:

• at least one laser sensor working with self-mixing interference comprising a plurality of Vertical Cavity Surface Emitting Laser diodes which are adapted to emit laser radiation in essentially the same direction and to generate measurement data resulting from a first velocity component of a vehicle;
• at least one rotation sensor adapted to generate measurement data resulting from a first rotational velocity of a first wheel of the vehicle;
• and
• an analyzer circuit adapted to receive the measurement data generated by the at least one laser sensor and the at least one rotation sensor, and to determine the first velocity component of the vehicle and the first rotational velocity of the first wheel of the vehicle using the first measurement data and the rotational measurement data,
• wherein the at least one laser sensor is further adapted to generate second measurement data with self-mixing interference resulting from a second velocity component of the vehicle different from the first velocity component, and the analyzer circuit is further adapted to determine the second velocity component of the vehicle using the second measurement data.

A sensor system of a vehicle, the system comprising:

• a first laser sensor comprising a first laser source configured to emit laser radiation and a first integrated detector configured to detect backscattered light from a surface on which the vehicle is driving, the laser sensor being configured to generate first measurement data, using self-mixing interference, resulting from as least one velocity component of the vehicle;
• a second laser sensor comprising a second laser source configured to emit laser radiation and a second integrated detector configured to detect backscattered light from a surface of a wheel of the vehicle, the second laser sensor being configured to generate second measurement data, using self-mixing interference, resulting from a rotational velocity of the wheel of the vehicle;
• and
• an analyzer circuit configured to receive the first and second measurement data generated by the first and second laser sensors, respectively, and to determine the at least one velocity component of the vehicle and the first rotational velocity of the first wheel of the vehicle.