摘要:
触觉作为人的一种独特的感官通道具有独特的优势,它不仅能最大限度的贴合人体的生理构造,传递硬度、大小、纹理、形状、温度等视听觉无法传递的信息,而且拥有快速准确的特性,触觉不仅可以实现全方位的感知,而且能够有效感知一些很难被视觉或听觉形式表达的更真实复杂的信息,和外界环境进行一系列的交互。振动触觉编码的设计是开发触觉的一个重要途径,也是未来人机交互的一种重要手段。本文从振动触觉感知机理入手,讨论了不同振动参数的振动触觉分辨率,并按照方向导航和文字交互的应用对振动信息编码进行归纳总结,介绍了振动信息编码的实验手段和结论,最后展望了振动信息编码领域未来的发展前景。
Abstract:
In recent years, with the progress and development of science and technology, the research on artificial intelligence and wearable devices continues to deepen, and people increasingly find ways to provide more comfortable and comprehensive usage experience. Auditory and visual technologies have been fully developed and utilized, while as an emerging field, tactile sense is a research direction with great potential. As a kind of unique human sensory channel, tactile sense has unique advantages. It can convey the information about the maximum of joint human body physiological structure, such as hardness, texture, shape, size and temperature which can not be transmitted by visual and auditory sense. Besides, tactile sense has the property of being fast and accurate. As a result, it performs well in some special situations, such as supergravity scenario, high-speed rotating scenario or very noisy environment, etc. The design of vibrational tactile coding is an important way to develop tactile sense and achieve human-computer interaction better. However, haptic coding has many defects. It is used in narrow application scene and conveys unclear meaning. Compared with the mature development of vision and hearing, it is necessary to design the vibration haptic coding patterns further to overcome these defects. The research on information transmission of tactile sense is very meaningful. For example, it offers convenience for special crowd like blind people or workers engaged in blind education. It provides navigation service for blind people by changing the vibration frequency and vibration intensity of blind vest. When in situation where hearing is cut, vision disappears or fails, tactile sense is a considerate way for some special groups to provide timely and accurate information assistance. Besides, tactile sense can help express the plane flight information in virtue of combined vibration tactile coding. However, these research aimed at providing a set of specific coding for specific scenario, in which relatively vague information are conveyed, such as emotion, direction and so on. Based on these, designing a set of universal coding patterns for most usage scenarios to deliver exact and accessible information is very necessary. In this paper, the resolution of tactile vibration is discussed based on the mechanism of tactile vibration perception. According to the application of directional navigation and text interaction, the vibration information coding is summarized, and the experimental methods and conclusions of vibration information coding are introduced. Besides, the prospect of vibration information coding field is proposed.