弹载遥测防毁采编存储系统的设计

Design of a bullet-proof telemetry acquisition andstorage system

摘要:

在航天航空的导弹数据采集领域中,针对遥测系统受环境因素影响较大,检测区域存在的“黑障”等问题,设计一种将遥测系统与防毁记录仪相结合的弹载遥测防毁采编存储系统。该系统通过设计防毁记录仪的内外层防护结构保证系统的抗高冲击性和稳定性；硬件方面通过设计56路模拟量信号的调理电路、模数转化电路以及多路RS422、LVDS数字量信号的光耦隔离式接口电路,实现多通道高压模拟量的采集和数字信号接收的功能；软件方面通过对系统总体逻辑设计及遥测发送模块的设计,实现对数据的采集、存储、发送与读取。最后通过实验测试,表明系统能够实现对多路高压模拟信号的采集以及数据准确完整回读的功能,保证了导弹飞行数据的正确性与完整性。

Abstract:

In the field of missile data acquisition in aerospace, in response to the problem that telemetry systems are influenced by environmental factors and and the "black barrier" existing in the detection area, an on-board telemetry acquisition and storage system that combines telemetry system and anti-destruction recorder is designed. The system is designed to ensure high impact resistance and stability through the design of the inner and outer protection structure of the anti-destructive recorder; in the hardware aspect, it realizes the functions of multi-channel high-voltage analog signal acquisition and digital signal reception by designing 56 channel analog signal conditioning circuit, analog-to-digital conversion circuit and optocoupler isolated interface circuit of multi-channel RS422 and LVDS digital signal; in the software aspect, it realizes the functions of multi-channel high-voltage analog signal acquisition and digital signal reception through the overall analysis of the system Logic design and telemetry module design, realize the data acquisition, storage, sending and reading. Finally, through the experimental test, it shows that the system can realize the function of multi-channel high voltage analog signal acquisition and data accurate and complete read back, and ensure the correctness and integrity of missile flight data.