資訊電子科技的躍進,促使人類生活形態快速改變。在科技始終來自於人性之人機系統設計不變法則下,為使電子產品之傳遞訊息能在不同之環境,被有效順利擷取運用,除進行一般靜態(Static)研究外,更須透過不同之動態環境研究,以獲得更多動態環境下之研究數據,以提升動態環境下人員操控之績效。 本次研究環境均於六軸平台模擬艙內進行,除靜態環境外,其餘之動態環境乃利用本模擬艙,建置一具有固定0.3赫茲頻率,在振幅為±10公分升降(Heave)或±8°翻滾、俯仰(Roll、Pitch)的低頻運動模式下,藉由受測者於電腦螢幕顯示之中文介面下搜尋關鍵字之過程,經由收集之客觀及主觀數據,以探討人員在不同環境下視覺搜尋與心智負荷影響情形。 本實驗採用2×4的實驗設計方法,受測者計有男性5位及女性5位合計10位;實驗的自變數為環境及性別二因子,應變數為反應時間、正確率、心跳、血壓(含收縮壓與縮張壓)及NASA-TLX心智負荷量表等。經實驗結果顯示在動態環境下的確會影響人員的視覺搜尋績效,其中在俯仰運動(Pitch Motion)時對搜尋正確率及反應時間績效表現為最差的,而靜態(Static)的運動模式為最佳,另在心智負荷上之研究結果顯示,心跳、血壓及NASA-TLX等指標上均未達顯著之影響。 本研究結果將可提供相關搜尋介面設計工程師,在未來的行動產品設計中,作為如何提高動態環境下有效率之操作模式,並降低心智負荷之影響參考。
The human life style is facilitated vastly by the great advance of Information Technology. Under essential concepts and principles, the science and technology always sprout from human expectation, and people design friendly man-machine system to cope with the need of civilized life. The message delivery of the electronic products in the different environment has to be enhanced for being utilized effectively. Aside from the conducts of general static research, we should obtain research data under various motion environments to upgrade the skill and the performance of the operators. Hereby the research is conducted in a 6-axis platform simulation cabin. Except the static environment, the motion environments utilize this simulation cabin to establish the low frequency motion environment with the fixed frequency 0.3 Hertz, as well as(together) with the Heave value within ±10 cm or the Roll/Pitch value within ±8 degree. By the process of subjects searching for the key words via the computer screen under Chinese interface, the research collected both objective and subjective data of the visual search and the mental load influence of subjects under different environments. The experiment adopts 2*4 design of experiment. Subjects include 5 male and 5 female (total 10). Environment and gender are the experiment independent variables. And the dependent variables contain reaction time, accuracy, heart read, blood pressure (systolic blood pressure and diastolic blood pressure) and NASA-TLX mental load meter. The results illustrate that (show)motion environment will affect the subject’s visual search performance. The accuracy and the reaction time under the pitching movement is the worst, and the one under static movement is the best. For mental load, the results also show that pulse and NASA-TLX do not reach significant influences. The research findings may provide the references for related search interface design engineer, in future mobile product design, to enhance the effective operational model under high-motion environment, and reduce the influence of mental load.
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