Visual SLAM Lighting Control for Battery-Limited Moving Bodies

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Solution Overview

Problem

Drones and carts operating in dark environments face rapid battery depletion due to constant lighting usage for Visual SLAM, limiting their operational time.

Innovation Solution

An information processing device that performs self-position estimation and generates map information using an image sensor, controlling lighting devices based on the state of the moving body and map information to minimize power consumption while maintaining Visual SLAM accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lighting devices are kept on all the time in dark places, then imaging quality for Visual SLAM is maintained, but battery consumption increases rapidly

Engineering Contradiction:
Improveimaging qualityVSAvoidbattery consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The lighting device operates periodically rather than continuously. The control unit turns on the lighting device only during imaging periods when the image sensor captures images, and turns it off during non-imaging periods. This periodic operation maintains imaging quality when needed while dramatically reducing overall power consumption, allowing drones and carts to operate longer in dark environments.

Inventive Principle:
Principle #19Periodic action

2Use of energy by moving object

If lighting devices are controlled based on brightness of surroundings, then power consumption is reduced, but imaging quality in very dark places deteriorates

Engineering Contradiction:
Improvepower consumptionVSAvoidimaging quality
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The control unit receives brightness information from the brightness sensor and automatically adjusts the lighting device operation accordingly. When the sensor detects low brightness conditions, the system activates the lighting device during imaging periods. This feedback mechanism ensures that power consumption is optimized while imaging quality is maintained in dark environments by adapting lighting control to actual environmental conditions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20240169580A1Information processing device, information processing method, and program
Publication Date: 2024.05.23 SONY GROUP CORP
  • US20240169580A1 patent drawing
  • US20240169580A1 patent drawing
  • US20240169580A1 patent drawing

AI summary

The present technology relates to an information processing device, an information processing method, and a program that can achieve power saving without compromising the accuracy of Visual SLAM.The information processing device performs, on the basis of sensing information acquired by a sensor, which includes an image sensor, and including image information acquired by the image sensor, self-position estimation of a moving body having mounted thereon the information processing device and generation of map information including three-dimensional information regarding a feature point, and controls a lighting device used for imaging by the image sensor on the basis of at least one of a state of the moving body and the map information. The present technology is applicable to inspection systems using moving bodies.