System and method for determining a position of a movable object, arrangement of general lighting LED and light sensor for a position determination of a movable object

A system for determining a position of a moving object, comprising:

• an arrangement of at least three general lighting LEDs, wherein a first general lighting LED of the at least three general lighting LEDs is implemented to transmit a first pulse-type light signal in a first wavelength range at a first transmission time, wherein a second general lighting LED of the at least three general lighting LEDs is implemented to transmit a second pulse-type light signal in a second wavelength range at a second transmission time comprising a first transmission time difference at the first transmission time, wherein a third general lighting LED of the at least three general lighting LEDs is implemented to transit a third pulse-type light signal in a third wavelength range at a third transmission time comprising a second transmission time difference at the first transmission time, wherein the first to third pulse-type light signals comprise an identical pulse-type form, and wherein the first wavelength range, the second wavelength range and the third wavelength range at least partially overlap in an overlapping range;
• a light sensor mounted to the moving object and implemented to receive the first to third light signal in the overlapping range and generate a receive signal by means of overlaying the first to third light signal;
• and
• an evaluation unit which is implemented to control the second general lighting LED and/or the third general lighting LED based on an evaluation of the form of the receive signal such that the second transmission time and/or the third transmission time are shifted with respect to the first transmission time such that the first to third light signal are simultaneously received by the light sensor and the evaluation unit is further implemented, based on a position of the first general lighting LED, a position of the second general lighting LED, a position of the third general lighting LED and the first and/or the second transmission time difference, to determine the position of the moving object.

A method for determining a position of a moving object, comprising:

• transmitting a first light signal comprising a first transmission time information and a first transmitter information in a first wavelength range, by a first general lighting LED, wherein the first transmitter information enables at least a determination of a position of the first general lighting LED and the first transmission time information is information about a point in time when the first signal was transmitted;
• transmitting a second light signal comprising a second transmission time information and a second transmitter information in a second wavelength range by a second general lighting LED, wherein the second transmitter information enables at least a determination of a position of the second general lighting LED and the second transmission time information is information about a point in time when the second signal was transmitted;
• transmitting a third light signal comprising a third transmission time information and a third transmitter information in a third wavelength range by a third general lighting LED, wherein the third transmitter information enables at least a determination of a position of the third general lighting LED and the third transmission time information is information about a point in time when the third signal was transmitted, wherein the first wavelength range, the second wavelength range and the third wavelength range at least partially overlap in an overlapping range;
• receiving the first to third light signals in the overlapping range by a light sensor mounted to the moving object;
• allocating a first signal receive time to the first light signal;
• allocating a second signal receive time to the second light signal;
• allocating a third signal receive time to the third light signal;
• and
• determining the position of the object based on the first to third transmitter information, the first to third transmission time information and the first to third receive time information,
• wherein the first general lighting LED is a first fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion indirectly generated via a fluorescence layer, and to transmit the first light signal simultaneously by modulating an excitation current of the first fluorescence LED, wherein a wavelength range of the light portion directly generated by the first fluorescence LED forms the first wavelength range,
• wherein the second general lighting LED is a second fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion generated indirectly via a fluorescence layer, and to transmit the second signal simultaneously by modulating an excitation current of the second fluorescence LED, wherein a wavelength range of the light portion generated directly by the second fluorescence LED forms the second wavelength range, and
• wherein the third general lighting LED is a third fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion generated indirectly via a fluorescence layer, and to transmit the third signal simultaneously by modulating an excitation current of the third fluorescence LED, wherein a wavelength range of the light portion generated directly by the third fluorescence LED forms the third wavelength range.

A method for determining a position of a moving object, comprising:

• transmitting a first pulse-type light signal in a first wavelength range by a first general lighting LED at a first transmission time;
• transmitting a second pulse-type light signal in a second wavelength range by a second general lighting LED at a second transmission time comprising a first transmission time difference to the first transmission time;
• transmitting a third pulse-type light signal in a third wavelength range by a third general lighting LED at a third transmission time comprising a second transmission time difference to the first transmission time, wherein the first to third pulse-type light signal comprise an identical pulse-like form and wherein the first wavelength range, the second wavelength range and the third wavelength range at least partially overlap in an overlapping range;
• receiving the first to third light signals in the overlapping range by a light sensor mounted to the moving object;
• generating a receive signal by means of overlaying the first to third light signals;
• and
• controlling the second general lighting LED and/or the third general lighting LED based on an evaluation of a form of the receive signal such that the second transmission time and/or the third transmission time are shifted with respect to the first transmission time such that the first to third light signals are received simultaneously by the light sensor;
• determining the position of the moving object based on a position of the first general lighting LED, a position of the second general lighting LED, a position of the third general lighting LED and the first and/or the second transmission time difference.

A non-transitory computer readable medium comprising a program code for executing a method for determining a position of a moving object;

• comprising:
• transmitting a first light signal comprising a first transmission time information and a first transmitter information in a first wavelength range, by a first general lighting LED, wherein the first transmitter information enables at least a determination of a position of the first general lighting LED and the first transmission time information is information about a point in time when the first signal was transmitted;
• transmitting a second light signal comprising a second transmission time information and a second transmitter information in a second wavelength range by a second general lighting LED, wherein the second transmitter information enables at least a determination of a position of the second general lighting LED and the second transmission time information is information about a point in time when the second signal was transmitted;
• transmitting a third light signal comprising a third transmission time information and a third transmitter information in a third wavelength range by a third general lighting LED, wherein the third transmitter information enables at least a determination of a position of the third general lighting LED and the third transmission time information is information about a point in time when the third signal was transmitted, wherein the first wavelength range, the second wavelength range and the third wavelength range at least partially overlap in an overlapping range;
• receiving the first to third light signals in the overlapping range by a light sensor mounted to the moving object;
• allocating a first signal receive time to the first light signal;
• allocating a second signal receive time to the second light signal;
• allocating a third signal receive time to the third light signal;
• and
• determining the position of the object based on the first to third transmitter information, the first to third transmission time information and the first to third receive time information,
• wherein the first general lighting LED is a first fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion indirectly generated via a fluorescence layer, and to transmit the first light signal simultaneously by modulating an excitation current of the first fluorescence LED, wherein a wavelength range of the light portion directly generated by the first fluorescence LED forms the first wavelength range,
• wherein the second general lighting LED is a second fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion generated indirectly via a fluorescence layer, and to transmit the second signal simultaneously by modulating an excitation current of the second fluorescence LED, wherein a wavelength range of the light portion generated directly by the second fluorescence LED forms the second wavelength range, and
• wherein the third general lighting LED is a third fluorescence LED which is implemented to generate white light for a general lighting by mixing a directly generated light portion and a light portion generated indirectly via a fluorescence layer, and to transmit the third signal simultaneously by modulating an excitation current of the third fluorescence LED, wherein a wavelength range of the light portion generated directly by the third fluorescence LED forms the third wavelength range,
• when the computer program is executed on a computer.

A non-transitory computer readable medium comprising a program code for executing a method for determining a position of a moving object, comprising:

• transmitting a first pulse-type light signal in a first wavelength range by a first general lighting LED at a first transmission time;
• transmitting a second pulse-type light signal in a second wavelength range by a second general lighting LED at a second transmission time comprising a first transmission time difference to the first transmission time;
• transmitting a third pulse-type light signal in a third wavelength range by a third general lighting LED at a third transmission time comprising a second transmission time difference to the first transmission time, wherein the first to third pulse-type light signal comprise an identical pulse-like form and wherein the first wavelength range, the second wavelength range and the third wavelength range at least partially overlap in an overlapping range;
• receiving the first to third light signals in the overlapping range by a light sensor mounted to the moving object;
• generating a receive signal by means of overlaying the first to third light signals;
• and
• controlling the second general lighting LED and/or the third general lighting LED based on an evaluation of a form of the receive signal such that the second transmission time and/or the third transmission time are shifted with respect to the first transmission time such that the first to third light signals are received simultaneously by the light sensor;
• determining the position of the moving object based on a position of the first general lighting LED, a position of the second general lighting LED, a position of the third general lighting LED and the first and/or the second transmission time difference,
• when the computer program is executed on a computer.