核电厂监控系统界面功能布局优化模型及应用

Function layout optimization model and application of monitoring system interface in nuclear power plant

为解决由数字化信息交互界面设计不合理而导致的操作员认知绩效降低的问题,以核电厂监控系统的硼和水补给系统界面为例,引入出错因子,使用认知可靠性和失误分析法(CREAM)获取出错因子及其出错概率;根据视觉感知强度理论,建立系统界面的视觉感知强度模型,使用线性规划算法求出界面布局最优方案,析出由出错因子导入的系统界面功能优化布局,建立出错因子-视觉感知-界面布局间的关联效应。结果表明:硼和水补给系统界面优化后的视觉传达指数Z为794.25,相对原始界面,Z提高了26.98%;优化方案提升了操作员的任务信息搜索绩效。

In order to solve problem of operators’lower cognitive performance caused by unreasonable design of digital information interaction interface,with boron and water supply interface of nuclear power plants’monitoring system as an example,error factors were introduced and CREAM model(cognitive reliability and error analysis method)was used to obtain the interface’s error factors and error probability.Then,a visual perception intensity model was established according to theory of visual perception intensity,an optimal scheme of interface layout was resolved by using linear programming algorithm and optimized function layout of it with introduction of error factors was obtained.Finally,correlation effect between error factors,visual perception and interface layout was established.The results show that visual communication index Z of the optimized interface is 794.25,which is 26.98%higher than the original one,therefore improving operators’performance in task information search.