小型遥测数据采集存储装置设计

Design of small telemetry data acquisition and storage device

摘要:

目前,运载火箭遥测系统多采用无线传输的方式,其信道具有一定带宽和容量限制。随着日渐增加的数据采集需求,原有遥测波道趋于饱和。为此,提出了一种小型遥测数据采集存储装置设计方案。该方案以FPGA作为核心控制模块,采用FLASH作为存储介质,可对待测信号进行采集、编帧以及存储。并采取了位置识别技术、分页存储技术、冗余设计等多种可靠性设计措施。该装置以低成本方式解决了现有遥测系统信道余量不足的问题,具有设计简便、可回收、体积小的特点,为后续运载火箭的设计改进提供了有效的数据支持,具备较高的通用性及可靠性。

Abstract:

At present, the telemetry system of launch vehicle adopts radio transmission, and its channel has certain bandwidth and capacity limitation. With the increasing demand of data acquisition, the original telemetry channel tends to be saturated. A design scheme of small telemetry data acquisition and storage device is proposed. This device uses FPGA as the core control module and FLASH as the storage medium, and is used for signal acquired, framed and stored. Several reliability design measures such as location identification, paging storage and redundancy design are also adopted. The device solves the problem of insufficient residual amount of existing telemetry channel in a low-cost way. It has the characteristics of being easy-design, recyclable and small in volume, providing effective data support for the design and improvement of subsequent launch vehicles, and has high universality and reliability.