DISTANCE MEASUREMENT METHOD, DISTANCE MEASUREMENT DEVICE, AND MOVABLE PLATFORM

• Main Author: MA, Liangliang
• Format: Patent
• Language: Chinese; English; French
• Published: 06.07.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

A distance measurement method (300), a distance measurement device (100, 200), and a movable platform. The distance measurement method (300) comprises: emitting a light pulse signal, receiving a returned light pulse signal, and converting the returned light pulse signal into an electrical signal (S310); inputting the electrical signal into a first sampling circuit and a second sampling circuit, the first sampling circuit being capable of acquiring first time information about triggering of a first threshold by the electrical signal, and the second sampling circuit being capable of acquiring second time information about triggering of a second threshold by the electrical signal, wherein the first threshold is higher than the second threshold, and the electrical signal can trigger the second threshold multiple times (S320); and obtaining a distance measurement result according to the first time information and/or the second time information (S330). The distance measurement method (300) realizes simultaneous mea