System and a method for validation of sensor data

A method for validation of sensor data for a hazard warning system of a vehicle, the method comprising:

• using an activation of at least one sensor of a hazard warning system of a vehicle to determine a detection of a hazard, wherein the activation of the least one sensor is due to the hazard, and wherein the sensor data received from the at least one sensor comprises at least a first time of occurrence of the hazard, wherein the first time of occurrence is a sensor-based observation of a time that the hazard occurred;
• determining a second time of occurrence of the hazard based on a computationally generated time-space diagram, the time-space diagram being generated by the at least one processor using the vehicle trajectory data associated with one or more other vehicles that passed through a location of the occurrence of the hazard prior to or contemporaneously with the detection of the hazard by the at least one sensor, wherein the second time of occurrence is a time-space-diagram-based observation of the time that the hazard occurred;
• calculating a validation result for the received sensor data based on a comparison of the first time of occurrence and the second time of occurrence, and an associated first predefined threshold;
• and
• updating a map database based on the calculated validation result.

A computer programmable product comprising a non-transitory computer readable medium having stored thereon computer executable instruction which when executed by one or more processors, cause the one or more processors to carry out operations for updating map data the operations comprising:

• using an activation of at least one sensor of a hazard warning system of a vehicle to determine a detection of a hazard, wherein the activation of the least one sensor is due to the hazard, and wherein the sensor data received from the at least one sensor comprises at least a first time of occurrence of the hazard, wherein the first time of occurrence is a sensor-based observation of a time that the hazard occurred;
• determining a second time of occurrence of the hazard based on a computationally generated time-space diagram, the time-space diagram being generated by the at least one processor using the vehicle trajectory data associated with one or more other vehicles that passed through a location of the occurrence of the hazard prior to or contemporaneously with the detection of the hazard by the at least one sensor, wherein the second time of occurrence is a time-space-diagram-based observation of the time that the hazard occurred;
• calculating a validation result for the received sensor data based on a comparison of the first time of occurrence and the second time of occurrence, and an associated first predefined threshold;
• and
• updating the map data based on the calculated validation result.