摘要
针对剖面浮标嵌入式系统采集的数据量大、占用存储空间多、卫星通信费用高的问题,设计了一种数据采集压缩系统。系统由数据采集模块、主控制器模块、存储模块、数据发送模块和电源模块组成。通过STM32控制器将CTD(温盐深仪)采集的数据进行解析并选取Huffman算法和miniLZO算法对数据进行压缩比较,压缩后的数据存储到TF卡中并通过铱星模块发送到岸站接收端。实验结果表明,系统能够有效地对采集数据进行压缩,减少了数据存储空间,提高了通信效率,降低了通信费用。
A data acquisition and compression system was designed to solve the problems of large amount of data,large storage space and high cost of satellite communication collected by profile buoy embedded system.The system consists of a data acquisition module,a main controller module,a storage module,a data transmission module,and a power module.The data collected by CTD(temperature and salt depth instrument)was analyzed by STM32 controller,and the data was compressed and compared by Huffman algorithm and miniLZO algorithm.The compressed data were stored in TF card and sent to the shore station receiving terminal through iridium module.The experimental results show that the system can effectively compress the collected data,reduce data storage space,improve communication efficiency and reduce communication costs.
作者
魏鹏
李醒飞
杨少波
李洪宇
WEI Peng;LI Xing-fei;YANG Shao-bo;LI Hong-yu(State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;Joint Laboratory for Ocean Observation and Detection,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China;Qingdao Institute for Ocean Technology of Tianjin University,Qingdao 266237,China;College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《仪表技术与传感器》
CSCD
北大核心
2020年第7期122-126,共5页
Instrument Technique and Sensor
基金
青岛海洋科学与技术国家重点实验室“问海计划”专项资助项目(ZR2016WH01)
青年教师科研启动基金资助项目(Pilq1702)。
