应用科技
應用科技
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YING YONG KE JI
2013年
6期
69-71,75
,共4页
低功耗%数据记录仪%SDHC卡%FAT32%USB
低功耗%數據記錄儀%SDHC卡%FAT32%USB
저공모%수거기록의%SDHC잡%FAT32%USB
low-power%data record%data logger%SDHC card%FAT32%USB
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．
為瞭在電池供電且安裝空間狹小的使用條件下，實現對測量數據的大容量存儲，設計研製瞭一款微型低功耗數據記錄儀．該記錄儀以定點DSP（digital signal processor）TMS320VC5509A為覈心，具備信號放大、程控濾波、數據採集和存儲功能．該記錄儀以不到8 cm2的小呎吋，實現瞭最高800 kSPS的數據採樣及存儲，且整體功耗小于800 mW．數據存儲介質採用普通SDHC卡，存儲格式為FAT32，讀齣方式為USB口，且支持2．0協議．測試結果錶明，該繫統可以長時間穩定工作于黑匣子記錄模式．
위료재전지공전차안장공간협소적사용조건하，실현대측량수거적대용량존저，설계연제료일관미형저공모수거기록의．해기록의이정점DSP（digital signal processor）TMS320VC5509A위핵심，구비신호방대、정공려파、수거채집화존저공능．해기록의이불도8 cm2적소척촌，실현료최고800 kSPS적수거채양급존저，차정체공모소우800 mW．수거존저개질채용보통SDHC잡，존저격식위FAT32，독출방식위USB구，차지지2．0협의．측시결과표명，해계통가이장시간은정공작우흑갑자기록모식．
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 in-stallation 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 800mW.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 .
