Adaptive Field Of View Design Of The HUD Display Based On Human-Machine-Environment System

In recent years,accompanied by the vigorous development of military aviation,head-up display(head-up display HUD)has been widely used and continuously developed in the Air Force.During the flight,the pilot uses the HUD display device to obtain the flight status and flight parameters of the aircraft.At present,the research on the layout and color of the HUD display interface is widely used.This paper takes the HUD interface as the research object,and based on the human-machine-loop system,combined with the visual perception of the pilot,works on the visual field layout of the HUD interface:(1)Analyze the relationship between pilots and aircraft HUD display equipment and the external environment from three aspects: human,machine and ring.The human aspect mainly describes the human body system and visual parameters related to the research,the visual field size of the visual characteristics,and the influence of human factors in the flight work.On the machine side,the simple flight principle of the aircraft is studied,and the head-up display is The system,the information architecture and field of view layout of the head-up display;the environmental aspect,introduces the sky environment in which the pilot is located,and studies the physiological and psychological effects of the flight environment on people.(2)Study pilot visual cognition and visual search behavior.According to Enzli’s situational awareness theory model,the factors affecting the first stage of information acquisition are analyzed from the interface,and the situational awareness,selective attention,visual search and other issues involved in the information transmission stage are analyzed.In combination with the eye tracking research method,the pre-experimental test was conducted to study the visual search effect of the background information on the pilot under the condition of single factor.The saliency analysis of computer vision was introduced to study the visual search mechanism of pilots and the influence of picture saliency on visual search.Establish a mapping association between HUD picture saliency and pilot visual cognition.(3)Based on the mapping association between the saliency of the picture and the visual cognition of the pilot,two adaptive display fields are designed for the significant difference in the picture and the state of the picture selective attention distribution.Adjustment plan.This paper provides a new idea for reducing the pilot’s cognitive difficulty on the aircraft HUD interface by analyzing the man-machine-loop system and the field-of-view adaptation of the HUD interface,from the ergonomics and visual saliency to the aircraft.The display field of view is improved to balance the visual differences that may occur in the same interface of the pilot and improve the efficiency of use.