Disinfection Robot Navigation Using 3D Camera for Obstacle Avoidance
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Solution Overview
Problem
Conventional disinfection devices are static and unable to actively respond to changes in air pollutant levels or navigate around obstacles like stepped portions and ramps, limiting their mobility and effectiveness in maintaining air cleanliness.
Innovation Solution
A movable disinfection robot equipped with a three-dimensional camera, LiDAR sensor, and processor that captures images and data to identify changes in floor height and slope, allowing it to avoid obstacles and navigate efficiently while purifying the air based on geographical and air quality maps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disinfection device is made stationary to ensure stable air purification operation, then the reliability of air purification is improved, but the adaptability to dynamic environments and pollutant changes deteriorates
Solution Approach 1:
The patent transforms the stationary disinfection device into a mobile robot that can dynamically navigate and adapt to different environments. The robot uses sensors to detect air quality and obstacles in real-time, adjusting its movement and purification operations accordingly, thus achieving both reliability through controlled operation and adaptability through mobility.
2Adaptability or versatility
If the disinfection device includes advanced sensors and processing units to detect and respond to pollutants, then the adaptability to environmental changes is improved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single mobile robot platform: air quality sensing, obstacle detection, navigation, and air purification. The processor coordinates these diverse functions through a unified control system that uses sensor data to make intelligent decisions about movement and purification operations, managing complexity through functional integration rather than separate systems.
3Measurement precision
If the robot uses a three-dimensional camera and LiDAR sensor to accurately detect obstacles and navigate, then the measurement precision of the environment is improved, but the use of energy increases
Solution Approach 1:
The patent implements periodic scanning and measurement cycles rather than continuous operation of the three-dimensional camera and LiDAR sensor. The robot performs environmental scanning at intervals and updates its navigation based on accumulated data, reducing energy consumption while maintaining adequate measurement precision for safe navigation and obstacle avoidance.
Data Source
AI summary
Disclosed herein is a disinfection robot. The disinfection robot includes a body provided with an outlet, a fan provided inside the body, a fan motor configured to rotate the fan, a wheel provided under the body, a wheel motor configured to rotate the wheel, a three-dimensional camera having a forward field of view of the body and configured to capture a three-dimensional image, and a processor configured to control the fan motor to rotate the fan to discharge air through the outlet and control the wheel motor to rotate the wheel to move the body based on the three-dimensional image.