Method for measuring distance and measuring device for it

Details Method for measuring distance and measuring device for it Method for measuring distance and measuring device for it

2007-02-13

2007-02-13

Nguyen, Hung (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

C340S436000, C340S438000, C340S439000, C340S870030, C340S903000, C342S070000, C342S118000

Reexamination Certificate

active

10943526

ABSTRACT:
A method for distance measuring using at least two contact-less distance sensors, e.g., ultrasound sensors, is provided, which distance sensors each have one emitter for emitting measuring pulses (MI) and one receptor for receiving measuring pulse echos (ME). The distance from an obstacle that reflects the measuring pulse (MI) is determined from the time difference between the measuring pulse (MI) and the received measuring pulse echo (ME). A first measurement is performed, which involves alternatingly emitting by the at least two distance sensors the measuring pulses (MI) offset in time by a first offset, and subsequently receiving the measuring pulse echos (ME) by the distance sensors. In addition, a verification measurement is performed, which involves alternatingly emitting by the at least two distance sensors the measuring pulses (MI) offset in time by a second offset, which is different from the first offset in time used in the first measurement.

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