2025 Volume 37 Issue 1 Pages 544-548
To prevent traffic accidents caused by human factors, it is essential to identify the potential risk factors in daily driving. To address this challenge, a low-cost and easy-to-use method is required to continuously collect and measure the driver’s state information while protecting the driver’s privacy. To address this issue, we have developed a driver state estimation method using wrist-worn sensors. However, the verification of our approach has been limited to laboratory environments thus far. Therefore, in this study, we developed an in-vehicle measurement system using wrist-worn sensors and conducted experiments to collect driving behavior data in a real-world environment. We then estimated the driver’s behavior from the collected hand acceleration data. From the results, we identified challenges in applying our method to real-world conditions. Finally, based on these approaches, we developed a framework for collecting data in real-world environments and constructing datasets.