Invention Grant
- Patent Title: Simultaneous localization and mapping for a mobile robot
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Application No.: US14674427Application Date: 2015-03-31
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Publication No.: US09400501B2Publication Date: 2016-07-26
- Inventor: Mark Schnittman
- Applicant: iRobot Corporation
- Applicant Address: US MA Bedford
- Assignee: iRobot Corporation
- Current Assignee: iRobot Corporation
- Current Assignee Address: US MA Bedford
- Agency: Honigman Miller Schwartz and Cohn LLP
- Main IPC: G05D1/00
- IPC: G05D1/00 ; G05D1/02

Abstract:
A method of simultaneous localization and mapping includes initializing a robot pose and a particle model of a particle filter. The particle model includes particles, each having an associated map, robot pose, and weight. The method includes receiving sparse sensor data from a sensor system of the robot, synchronizing the received sensor data with a change in robot pose, accumulating the synchronized sensor data over time, and determining a robot localization quality. When the accumulated sensor data exceeds a threshold accumulation and the robot localization quality is greater than a threshold localization quality, the method includes updating particles with accumulated synchronized sensor data. The method includes determining a weight for each updated particle of the particle model and setting a robot pose belief to the robot pose of the particle having the highest weight when a mean weight of the particles is greater than a threshold particle weight.
Public/Granted literature
- US20150205299A1 Simultaneous Localization And Mapping For A Mobile Robot Public/Granted day:2015-07-23
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