Abstract: Techniques and systems for testing, evaluating and/or otherwise assessing the operation of vehicles are discussed herein. Aspects relate to a system and method comprising receiving vehicle data derived from a vehicle data logging system, the vehicle data being associated with a vehicle run and comprising a plurality of data topics associated with a corresponding plurality of vehicle components and displaying the vehicle data with a timeline component of a user interface during playback of the vehicle run, the timeline component comprising a portion in the user interface and the portion being configurable with a start time and an end time. The vehicle data may comprise timing data for at least one of the data topics and the vehicle data may be displayed at points in time along the portion in the user interface corresponding to the timing data.

Abstract: A method is for determining a wearing state of earphones. The method includes determining an onto-ears event or off-ears event experienced by the earphones on the basis of first data indicating motion of the earphones. The method further includes determining a first wearing state of the earphones on the basis of second data indicating proximity of the earphones to a user's skin. The method additionally includes determining the wearing state of the earphones on the basis of the determined onto-ears event or off-ears event and the first wearing state. This increases the accuracy of detection of the wearing state of the earphones. Based on this more accurately determined wearing state, the earphones can switch appropriately between a low power consumption mode and a normal operating mode, thereby improving the energy consumption of the earphones.

Abstract: A method and device for determining a wearing state of an earphone, and a corresponding earphone, are provided. The method includes determining that the earphone has experienced a first event on the basis of first acceleration data from the earphone. In response to the first event, determining whether the earphone has experienced a second event on the basis of first angular velocity data from the earphone, The method further includes determining the wearing state of the earphone on the basis of a determination result for the two events. In this way, it is possible to accurately determine the wearing state of the earphone while reducing power consumption.

Abstract: A method and device for determining a wearing state of earphones, and corresponding earphones, are disclosed. The method includes determining an onto-ears event or off-ears event experienced by the earphones on the basis of first data indicating motion of the earphones. The method further includes determining a first wearing state of the earphones on the basis of second data indicating proximity of the earphones to a user's skin. The method additionally includes determining the wearing state of the earphones on the basis of the determined onto-ears event or off-ears event and the first wearing state. This increases the accuracy of detection of the wearing state of the earphones. And based on this more accurately determined wearing state, the earphones can switch appropriately between a low power consumption mode and a normal operating mode, thereby improving the energy consumption of the earphones.