| Summary: | 碩士 === 國立臺北科技大學 === 工業設計系創新設計碩士班（碩士在職專班） === 104 === The recent emergence of the Internet of Things, has brought many new innovations and cars equipped with touchscreens have become mainstream. As touch-screen technology matures multi-touch gestures are becoming more widely used in man- machine interfaces. However, very little domestic research has been done on vehicle multi-touch interface systems. This study focuses on the prerequisite for usability and convenience and raises the question of whether multi-touch gestures, designed using smart device operation experience, can improve the ease with which in vehicle devices can be controlled and reduce the mental and physical load on the driver. This study was carried out in two phases. The first part of data collection by the early phase of research summarized the main function of the domestic commercial vehicle models equipped with the vehicle system physical buttons, such as volume controls, the power switches and adjustment knobs, up and down music selection, radio channels, mute, CD insertion and retraction and back to the main menu in order and so on. A questionnaire was conducted about vehicle system multi-touch gestures that corresponded to main function design of physical buttons, to find any vehicle system multi-touch gestures that drivers knew and would expect, as samples of gestures to be used in the second phase of the study.
Part of the second phase was an examination of independent two-factor samples which are 2 (physical keys and multi-touch gestures) operation interfaces * 2 (the level of driving experiences), and a subjective assessment of usability, satisfaction and mental load. The results showed that: (1) The overall operating performance of multi-touch gestures for "long-press" on master switch, "double-tap" on mute, "sliding left and right" to select a song or search for a radio station is higher than for the physical buttons.(2) Touch screen region-wide operating range helps improve the operating performance of vehicle system interface gestures. (3) Multi-touch gestures are not influenced by environmental constraints in the car and driving experience. (4) Users have become accustomed to touch gestures. Vehicle systems multi-touch gesture interfaces are not too much of a mental load. (5) Operation experience of smart device gestures can reduce learning time and increase the driver’s willingness to use them.
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