多媒体演示仪的人机安全设计  

Man-machine Safety Design for Multimedia Demonstration Instrument

作　　者：楚杰[1] 楚良海[2] 邱晓利[1] 

机构地区：[1]西北农林科技大学机械与电子工程学院,杨凌712100 [2]西安石油大学计算机科学与技术学院,西安710061

出　　处：《机械工程学报》2010年第8期188-194,共7页Journal of Mechanical Engineering

摘　　要：多媒体演示仪已成为高校教学的必备工具。由于多媒体演示仪设计上的不合理使75%以上的教师患上颈椎病、肩周炎等多种疾病。以人机工程学理论为基础,采用实测法和调查研究法,完成多媒体演示仪的参数优化设计,从简单易用、安全高效的角度改善了高校教师的教学环境。样本人群选取260名在职高校教师,通过问卷调查、人体百分位测量与参数计算,总结教师在课堂操作中的规律,进行演示仪总体设计。主要包括:人体尺寸分析、用户界面设计、功能操作界面设计、话筒设计、上盖设计、设备连接口及系统操作区设计、总体尺寸设计和实体模型设计。经过模拟试验和模型测试,结果显示:演示仪参数符合教师课堂操作状态和相合性。总体设计重新定位演示仪人机安全尺寸,增加合开两用升降座椅,创新演示屏,完善了演示仪的总体结构和功能,促进教育设备的创新设计改革。The multimedia demonstration instrument has become an indispensable tool for college teaching.However,its unreasonable design causes more than 75% of teachers to suffer from cervical spondylosis,frozen shoulder and other diseases.Based on the ergonomics theory,through practical measurement and investigation,the multimedia demonstration instrument parameter optimization design is completed.Now that the instrument becomes simple and easy to use,safe and efficient,the teaching environment of college teachers is improved.260 in-service college teachers are selected as sample population,through questionnaire survey,body percentile measurement and parameter calculation,the rule of teachers in class operation is summed up,then the total design of demonstration instrument is carried out,including human dimension analysis,user interface design,functional operation interface design,microphone design,top head design,device interface and system operating area design,overall size design and physical model design.The results of simulation test and model test show that the parameters of demonstration instrument are in line with teachers＇ class operation state.Total design resets the man-machine safety dimension,increases a dual-use lifting chair by opening and closing,innovates the demonstration screen,and improves the overall structure and function of demonstration instrument,thus promoting the innovative design and reform of educational facilities.

关 键 词：多媒体演示仪 人机工程学 参数优化 总体设计 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]