Development of Directional Display Using Forearm Twisting and Human Navigation Experiments

摘要

Advances in sensors, computers, and telecommunications enable us to accurately determine our location and direction in real time when walking. The development of man-machine interfaces that effectively transmit data to the user on position and direction obtained using sensors and computers remains a challenge. Image and voice transmit large amounts of complex information quickly, but distract the user's attention when images or voice must be interpreted while walking. Users can also acquire information by touching rotating or vibrating objects, although these transmit comparatively little information at a time to user. The tradeoff is that they are intuitive and easy to understand. Hence we consider them suitable for information transmission in walking. Inspired by the seeing-eye dog harness, we conducted direction and walking guidance control by showing twist to the user's forearm via wearable rotating handle. We outline the development of direction-indicators using forearm twisting, and conduct recognition experiments on this motion. We then propose a feedback control method for directional guidance, and conduct directional guidance experiments. We verify the effectiveness of our proposal in walking navigation control experiments - an application of directional guidance control - and compare it to walking guidance control using a vibrating sensor.