Method and system for inferring the behavior or state of the driver of a vehicle, use of the method and computer program for carrying out the method

A system for inferring the behavior of the driver of a vehicle, comprising an autonomous computation device arranged in the vehicle with:

• processing means (E);
• and
• internal sensors (Si1-Si14) connected with said processing means (E) and arranged to detect the state of the vehicle and to supply information relating to said state of the vehicle to said processing means (E);
• the system wherein:
• said autonomous computation device (D) comprises a memory (M) where at least reference information relating to states of the vehicle associated with a behavior of the driver that is considered normal is recorded;
• and
• said processing means (E) are communicated with said memory (M) to access said reference information, and they implement a method for inferring the behavior or state of the driver of a vehicle with the aid of an autonomous computation device located in the vehicle, integrating sensors that can report on the motion and operating state of the vehicle, wherein said sensors are inertial sensors comprising accelerometers and/or gyroscopes, and the method comprises:
• a) processing at least part of the information from one or several of said inertial sensors of said autonomous computation device, one by one or in combination, to make an evaluation of at least one descriptive function of the interaction or behavior of the driver with the vehicle over time, in each phase of a trajectory and for a specific road;
• and
• b) predicting said behavior or state by comparing the evaluation of said at least one descriptive function, or at least a value thereof, with reference information associated with a behavior of the driver that is considered normal for a specific road, said reference information being stored in at least one memory of said autonomous computation device, or in a remote device or database.

A non-transitory tangible computer program product comprising computer program code means suitable for performing the steps of a method for inferring the behavior or state of the driver of a vehicle with the aid of an autonomous computation device located in the vehicle, integrating sensors that can report on the motion and operating state of the vehicle, wherein said sensors are inertial sensors comprising accelerometers and/or gyroscopes, and the method comprises:

• a) processing at least part of the information from one or several of said inertial sensors of said autonomous computation device, one by one or in combination, to make an evaluation at least one descriptive function of the interaction or behavior of a driver with the vehicle over time, in each phase of a trajectory and for a specific road;
• and
• b) predicting said behavior or state by comparing the evaluation of said at least one descriptive function, or at least a value thereof, with reference information associated with a behavior of the driver that is considered normal for a specific road, said reference information being stored in at least one memory of said autonomous computation device, or in a remote device or database, said steps including said evaluation of the at least one descriptive function of an interaction of the driver with the vehicle, in each phase of a trajectory, and treatment of the information about the physiological state of the driver and said determination of the behavior or state of the driver of the vehicle when the aforementioned program is run in a computer, a digital signal processor, an application-specific integrated circuit, a microprocessor, a microcontroller or any other form of programmable hardware.