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设计了一种对遥测大容量速变数据的实时压缩采集方案,通过采用改善无损压缩算法的压缩比、压缩和解压速度以及算法复杂度等多个数据压缩性能,提出了综合性能较好的LZW编码作为数据压缩的核心算法并通过软件仿真确认其效果和压缩算法的执行速度;利用主控芯片FPGA完成对压缩数据的高精度采集,对研制的数据采集压缩系统进行整体测试,测试结果表明,该系统完成了6路速变参数的实时采集与压缩,压缩比达到1.8∶1以上,各项指标满足了设计要求. 相似文献
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Considering the need of target positioning,a remote positioning system is designed based on global positioning system (GPS) and general packet radio service(GPRS) ; The data collection terminal is based on microcontroller unit (MCU) PIC24FV301.It uses GPRS network to create wireless link and transmits GPS source information which is collected by LEA5H board to monitor center on the Internet.The monitor center obtains the target information through processing and analysis of the calculated data.Actual operation results indicate that the designed system has excellent performance and achieves the goal of the remote location. 相似文献
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