用于表达飞行姿态信息的组合式振动触觉编码

通过触觉传感帮助飞行员准确感知飞行姿态信息,减轻视听觉认知负担是信息的非视觉表达的一种大胆而有效途径.为此,设计了一种能提示飞机偏转方向和偏转角度的振动触觉显示方法.该方法充分考虑人对振动触觉刺激的敏感特性将姿态信息映射为一定振动节奏、振动位置和振动次序,从而形成组合式振动触觉编码,通过穿戴式振动触觉提示背心提示给人.与单控制参数的映射编码模式相比,该方法能显著提高振动表达的识别率,同时降低认知载荷.不同编码方法的感知识别实验表明,本方法在识别准确率,响应时间和训练时间上优于其他传统方法.

Combined Vibration Tactile Coding for Expressing Flight Attitude Information

Tactile display have been reported as effective in improving pilots' awareness of flight attitude informa-tion,reducing the burden of visual and auditory perception. A vibration tactile display and a combined vibration tactile coding method have been designed to indicate the deflection direction and angle of the aircraft for pilots. The method takes full account of the characteristics of the human's vibrotactile perception,which intuitively maps the de-flection direction and angle into certain vibration rhythm,vibration position and vibration order. Compared with the mapping coding mode of single control parameters,this method can significantly improve the recognition rate of vi-bration expression, and reduce the cognitive load. The experimental results of different recognition methods show that the combined coding method is superior to other traditional coding methods with single control parameters in recognition accuracy,response time and training time.