微型低功耗数据记录仪设计  

Design on miniature low-power data logger

作　　者：余义德[1] 刘安林[2] 

机构地区：[1]91550部队93分队 [2]哈尔滨工程大学水声技术国防科技重点实验室

出　　处：《应用科技》2013年第6期69-71,75,共4页Applied Science and Technology

摘　　要：为了在电池供电且安装空间狭小的使用条件下,实现对测量数据的大容量存储,设计研制了一款微型低功耗数据记录仪.该记录仪以定点DSP(digital signal processor)TMS320VC5509A为核心,具备信号放大、程控滤波、数据采集和存储功能.该记录仪以不到8 cm2的小尺寸,实现了最高800 kSPS的数据采样及存储,且整体功耗小于800 mW.数据存储介质采用普通SDHC卡,存储格式为FAT32,读出方式为USB口,且支持2.0协议.测试结果表明,该系统可以长时间稳定工作于黑匣子记录模式.In this paper, a miniature low-power data logger is designed. The logger takes fixed-point DSP （ digital signal processor） TMS320VC5509A as the core, and it has the capabilities of signal amplification, programmable filtering, data acquisition and storage. Under the application conditions of supplying power by battery and small installation space, the logger may achieve the large-capacity storage of measurement data. With the small size of less than 8 square centimeters, it may realize the data sampling and storage for as many as 800kSPS. In addition, the o- verall power consumption is less than 800roW. The data storage medium applies ordinary SDHC card with storage format FAT32, and data can be read out by a USB port supporting protocol 2.0. The test results show that the sys- tem may work steadily in the recording mode of the black box for a long time.

关 键 词：低功耗 数据记录仪 SDHC卡 FAT32 USB 

分 类 号：TN911.7[电子电信—通信与信息系统]