Department of Computer Science, Faculty of Engineering, Lund University, Box 118, 221 00 Lund, Sweden.
Center for Intelligent and Interactive Robotics, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.
Sensors (Basel). 2024 Jul 17;24(14):4644. doi: 10.3390/s24144644.
A system has been developed to convert manual wheelchairs into electric wheelchairs, providing assistance to users through the implemented algorithm, which ensures safe driving and obstacle avoidance. While manual wheelchairs are typically controlled indoors based on user preferences, they do not guarantee safe driving in areas outside the user's field of vision. The proposed model utilizes the dynamic window approach specifically designed for wheelchair use, allowing for obstacle avoidance. This method evaluates potential movements within a defined velocity space to calculate the optimal path, providing seamless and safe driving assistance in real time. This innovative approach enhances user assistance and safety by integrating state-of-the-art algorithms developed using the dynamic window approach alongside advanced sensor technology. With the assistance of LiDAR sensors, the system perceives the wheelchair's surroundings, generating real-time speed values within the algorithm framework to ensure secure driving. The model's ability to adapt to indoor environments and its robust performance in real-world scenarios underscore its potential for widespread application. This study has undergone various tests, conclusively proving that the system aids users in avoidance obstacles and ensures safe driving. These tests demonstrate significant improvements in maneuverability and user safety, highlighting a noteworthy advancement in assistive technology for individuals with limited mobility.
已经开发出一种系统,可将手动轮椅改装为电动轮椅,通过实施的算法为用户提供辅助,确保安全驾驶和避免障碍物。虽然手动轮椅通常根据用户喜好在室内进行控制,但在用户视野之外的区域,它们无法保证安全驾驶。所提出的模型利用专为轮椅使用设计的动态窗口方法来实现避障功能。该方法在定义的速度空间内评估潜在的运动,计算出最佳路径,为用户提供实时、无缝且安全的驾驶辅助。通过将使用动态窗口方法开发的最先进算法与先进的传感器技术相结合,这种创新方法提高了用户的辅助效果和安全性。该系统借助 LiDAR 传感器感知轮椅周围环境,在算法框架内生成实时速度值,确保安全驾驶。该模型在室内环境中的适应能力和在现实场景中的稳健性能突显了其广泛应用的潜力。这项研究已经进行了各种测试,最终证明该系统有助于用户避开障碍物并确保安全驾驶。这些测试表明在机动性和用户安全性方面有了显著提高,为行动不便的人士带来了一项值得关注的辅助技术进展。