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目的提出应用液晶显示器时影响人机系统功能的6个因素及其主次关系,选取各因素水平的最优组合,进而为相关标准的制定和载人航天相关显示器的工效学研究提供实验数据。方法选用一套实验系统,采用正交实验设计方法,20名被试者须完成整体界面参数的观察、局部参数的搜索、故障事件的快速识别等3项实验任务,分析指标主要包括反应时、错误次数、无法识别次数等。结果各分析指标随实验因素、实验水平的不同,有较大差别。就平均反应时间而言,因素“观察角度”的极差值最小,因素“观察距离”的极差值最大。结论各因素对显示器显示特性影响的主次顺序为:观察距离、照明水平、字符大小、字符/背景颜色、观察角度。
OBJECTIVE To propose six factors that affect the function of the man-machine system when using the liquid crystal display (LCD) and their primary and secondary relationships, select the optimal combination of the factors, and then provide experimental data for the development of relevant standards and ergonomics of manned spacecraft related displays. Methods A set of experimental system was selected. Using orthogonal experimental design method, 20 subjects were required to complete 3 experimental tasks of observation of global interface parameters, search of local parameters and rapid identification of fault events. The analysis indexes mainly included reaction time, The number of errors, the number of unrecognized and so on. Results of the analysis of indicators with experimental factors, different experimental levels, there is a big difference. As far as the average reaction time is concerned, the factor “observation angle” has the smallest difference and the factor “observation distance” has the largest difference. Conclusion The main order of the factors that affect the display characteristics of the display are: observation distance, illumination level, character size, character / background color, observation angle.