Improvement of Sensory Stabilization and Repeatability of Vibration Interface for Distance Presentation

Abstract

We have developed a vibration alert interface (VAI) that provides information through various vibration patterns. In our previous studies, we designed the VAI and its vibration patterns to provide analog-like information to users such as distance to obstacles. Precise information recognition requires correct perception of vibration patterns. However, various disturbances can affect perception of vibrations, causing users to perceive similar vibrations as being different. We therefore proposed the relative vibration sense presentation method to avoid disruption of the vibration sense. In this paper, we experimentally show that this method improves the repeatability of vibration sensation. We also propose a vibration presentation model for drivers to correct perception gaps due to the application and surroundings of VAI. We evaluate the proposed model through experimentation.