Autonomous lawn mower, self-moving device, and method for recognizing obstacle by same
US11256267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Dec 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/937
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a non-contact obstacle-avoiding autonomous lawn mower, including a housing, a moving module, a drive module, and a control module. An ultrasonic sensor assembly is disposed on the housing. The ultrasonic sensor assembly includes at least two ultrasonic sensors, including a first ultrasonic sensor and a second ultrasonic sensor. When a distance between an obstacle detected by the ultrasonic sensor assembly and the autonomous lawn mower is less than a preset distance, the control module controls the autonomous lawn mower to execute a preset obstacle-avoidance measure. Compared with the prior art, the present invention uses an ultrasonic sensor to detect an obstacle and sets a preset distance to prevent the autonomous lawn mower from colliding with the obstacle, thereby implementing non-contact obstacle avoidance of the autonomous lawn mower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.