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飞行关键数据和告警信息的显示对飞行员及时了解当前飞机运动状态有着至关重要的意义。由于从传感器探测到的数据传送到综合显示系统都会存在滞后,若延迟显示过大,则会使飞行员的操纵判断产生一定的滞后,严重者甚至会失去对飞机的有效操控,因此有效分析数据显示的延时问题是保障飞行安全的必要条件之一。在整个延时时间路径中,常见的总线消耗(如AFDX),一般可通过工具进行测量,而显示端的延迟因路径较为复杂则很难通过工具进行测量分析。为此,本文分析研究了飞行数据的整个传输路径,详细剖析了综合显示系统的内部显示路径,提出了一种数据显示的延时分析方法以有效获知显示延时的大小,并为进一步缩小延时问题提供分析材料。
The display of flight-critical data and warning messages is of crucial importance for pilots to keep abreast of current aircraft movements. Since the data transmitted from the sensor to the integrated display system will be lagging behind, if the delay is displayed too large, it will make the pilots to determine the operation of a certain degree of lag, in severe cases or even lose the effective control of the aircraft, the effective analysis of data display The delay issue is one of the necessary conditions for ensuring flight safety. Common bus consumption (such as AFDX) is generally measured by the tool during the entire delay time path, and the delay of the display end is difficult to measure and analyze through the tool due to the complicated path. Therefore, this paper analyzes the whole transmission path of flight data, analyzes the internal display path of the integrated display system in detail, and presents a data analysis method of delay analysis to effectively know the display delay, and to further reduce the delay The questions provide analysis material.