Three-dimensional space detection system, positioning method and system
US10962633B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Apr 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A three-dimensional space detection system, including: a locating base station, a label device to be located, and a computing device. The locating base station synchronizes a base time point to the label device to be located, sends an ultrasonic signal to the label device to be located, rotationally sends a first laser plane signal about a first rotation axis, and rotationally sends a second laser plane signal about a second rotation axis perpendicular to the first rotation axis. The label device to be located synchronizes a base time point from the locating base station, detects the ultrasonic signal, the first laser plane signal and the second laser plane signal. The computing device determines the three-dimensional space coordinates of the label device to be located according to the time point at which the label device to be located detects the ultrasonic signal, the time point at which the label device to be located detects the first laser plane signal and the time point at which the label device to be located detects the second laser plane signal. The locating system enables precise indoor locating based on ultrasound and laser signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.