飞行参数记录系统时标设计及应用

Time Tag Design and Application of Flight Parameter Record System

为了便于参数分析和事故调查,飞行参数记录系统需要对采集记录的参数打上一个统一和精确的时标。介绍一种新的数据打包格式,设计一种通过统一时钟发布的思路,给每个异步流数据包打上一个统一的时标,工程应用中具有较好的时标精度,完全满足系统设计要求,并已成功应用于某型飞行参数记录系统中。

For parameter analysis and accident investigation, flight parameter recording system should mark a unified and accurate time tag for all recording parameters. The document introduces a new data package format and designs a method of unified time publication. Every asynchronous data package has a unified time tag. The design of time tag has high precision in project application and satisfies the requirement of system design. The design of time tag has been successfully used in flight parameter recording system of an airplane.