Method and processing unit for generating at least one activation signal for a warning display of a user of smart glasses

A processing unit configured to generate at least one activation signal for a warning display of a user of smart glasses, the processor unit configured to:

• receive first surroundings sensor signals from rear and/or lateral surroundings of the user of the smart glasses, detected at a first point in time using at least one surroundings sensor situated at at least one temple of the smart glasses;
• detect at least one object in the rear and/or lateral surroundings of the user of the smart glasses as a function of the received first surroundings sensor signals;
• receive second surroundings sensor signals from the rear and/or lateral surroundings of the user of the smart glasses, detected at a second point in time following the first point in time using the at least one surroundings sensor, as a function of the detected object;
• and
• receive first motion signals and second motion signals of the user of the smart glasses, detected at the first point in time and at the second point in time, respectively;
• ascertain a first movement trajectory of the detected object as a function of the received first surroundings sensor signals and the second surroundings sensor signals;
• ascertain a second movement trajectory of the user of the smart glasses as a function of the received first motion signals and the second motion signals of the user of the smart glasses;
• ascertain a likelihood of a future collision of the user of the smart glasses with the detected object as a function of the ascertained first movement trajectory and the second movement trajectory;
• and
• generate the at least one activation signal for the warning display of the user of the smart glasses when the ascertained likelihood of the future collision exceeds a predetermined threshold.

Smart glasses, comprising:

• a processing unit;
• a surroundings sensor situated at at least one temple of the smart glasses, the surroundings sensor configured to detect first surroundings sensor signals and second surroundings sensor signals from rear and/or lateral surroundings of a user of the smart glasses;
• and
• a warning display device;
• wherein the processor is configured to:
• receive the first surroundings sensor signals from the rear and/or lateral surroundings of the user of the smart glasses, detected at a first point in time using the surroundings sensor;
• detect at least one object in the rear and/or lateral surroundings of the user of the smart glasses as a function of the received first surroundings sensor signals;
• receive the second surroundings sensor signals from the rear and/or lateral surroundings of the user of the smart glasses, detected at a second point in time following the first point in time using the surroundings sensor, as a function of the detected object;
• and
• receive first motion signals and second motion signals of the user of the smart glasses, detected at the first point in time and at the second point in time, respectively;
• ascertain a first movement trajectory of the detected object as a function of the received first surroundings sensor signals and the second surroundings sensor signals;
• ascertain a second movement trajectory of the user of the smart glasses as a function of the received first motion signals and the second motion signals of the user of the smart glasses;
• ascertain a likelihood of a future collision of the user of the smart glasses with the detected object as a function of the ascertained first movement trajectory and the second movement trajectory;
• and
• generate the at least one activation signal for the warning display of the user of the smart glasses when the ascertained likelihood of the future collision exceeds a predetermined threshold.