北京生物医学工程
北京生物醫學工程
북경생물의학공정
BEIJING BIOMEDICAL ENGINEERING
2015年
3期
278-283
,共6页
胶囊内镜%图像接收%图像存储%CPLD%FAT32文件系统
膠囊內鏡%圖像接收%圖像存儲%CPLD%FAT32文件繫統
효낭내경%도상접수%도상존저%CPLD%FAT32문건계통
wireless capsule endoscope%image reception%image storage%CPLD%FAT32 file system
目的:为了接收人体胃肠道内无线胶囊内镜发出的图像信息,研制了一种基于CF卡的体外图像接收、存储系统。方法该系统采用“CPLD+FIFO+MCU”的结构,用CPLD对接收到的模拟图像信号进行同步,控制A/D对其进行采集并缓存进FIFO。在胶囊休眠期,由MCU将FIFO中的数据以FAT32文件系统的格式记录到CF卡中,为后续的图像文件管理、解读提供了便利。结果在体外实验中,本系统成功实现了图像信息的接收及存储任务,获得了清晰的图像。结论本系统结构紧凑、便于携带,在突发式信息的采集及存储方面具有一定的应用价值。
目的:為瞭接收人體胃腸道內無線膠囊內鏡髮齣的圖像信息,研製瞭一種基于CF卡的體外圖像接收、存儲繫統。方法該繫統採用“CPLD+FIFO+MCU”的結構,用CPLD對接收到的模擬圖像信號進行同步,控製A/D對其進行採集併緩存進FIFO。在膠囊休眠期,由MCU將FIFO中的數據以FAT32文件繫統的格式記錄到CF卡中,為後續的圖像文件管理、解讀提供瞭便利。結果在體外實驗中,本繫統成功實現瞭圖像信息的接收及存儲任務,穫得瞭清晰的圖像。結論本繫統結構緊湊、便于攜帶,在突髮式信息的採集及存儲方麵具有一定的應用價值。
목적:위료접수인체위장도내무선효낭내경발출적도상신식,연제료일충기우CF잡적체외도상접수、존저계통。방법해계통채용“CPLD+FIFO+MCU”적결구,용CPLD대접수도적모의도상신호진행동보,공제A/D대기진행채집병완존진FIFO。재효낭휴면기,유MCU장FIFO중적수거이FAT32문건계통적격식기록도CF잡중,위후속적도상문건관리、해독제공료편리。결과재체외실험중,본계통성공실현료도상신식적접수급존저임무,획득료청석적도상。결론본계통결구긴주、편우휴대,재돌발식신식적채집급존저방면구유일정적응용개치。
Objective In order to receive and store the image information transmitted by wireless capsule endoscope , a data receiving and storing system based on CF card outside human body is introduced in this paper.Methods By utilizing the structure of ‘CPLD+FIFO+MCU’ , this system synchronizes the analog image frames received , control the conversion of A/D and save the result in FIFO under the control of CPLD . And during the hibernation , MCU in the system reads the cache data and stores it into CF by the format of FAT32 file system, which is convenient for the further image data decode .Results The designed system receives and stores the transmitted signal successfully and a clear and complete image is achieved in the experiment in vitro.Conclusions The designed system is compact and portable and has certain application value in the burst signal sampling and storing .