| 基于GPRS/GSM的低功耗无线远程测控终端设计 |
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| 引用本文： | 陈琦,丁天怀,李成,王鹏.基于GPRS/GSM的低功耗无线远程测控终端设计[J].清华大学学报(自然科学版),2009(2). |
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| 作者姓名： | 陈琦 丁天怀 李成 王鹏 |
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| 作者单位： | 清华大学精密仪器与机械学系测试技术及仪器国家重点实验室; |
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| 摘 要： | 设计了基于GPRS/GSM混合通讯的低功耗数据采集与传输终端,用于定时采集数据并通过GPRS网络上传数据至监控中心。在GPRS网络拥堵时,终端自动切换至SMS方式进行数据传输。终端的主控单元采用超低功耗单片机MSP430,在非工作周期进入LPM3低功耗模式,减少闲时在线功耗。48 h现场测试结果表明,终端能可靠采集和上传数据。GPRS传输的丢包率为6.94‰,混合通讯丢包率为0;其传输平均延迟为1.126~2.669 s;工作周期和低功耗模式的功耗分别为200 mW和0.2 mW。
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| 关 键 词： | 远程测控终端 GPRS 短消息服务（SMS） 传输延迟 |
Low-power wireless remote terminal design based on GPRS/GSM |
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| CHEN Qi,DING Tianhuai,LI Cheng,WANG Peng.Low-power wireless remote terminal design based on GPRS/GSM[J].Journal of Tsinghua University(Science and Technology),2009(2). |
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| Authors: | CHEN Qi DING Tianhuai LI Cheng WANG Peng |
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| Institution: | State Key Laboratory of Precision Measurement Technology and Instruments;Department of Precision Instruments and Mechanology;Tsinghua University;Beijing 100084;China |
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| Abstract: | A low-power remote terminal unit(RTU) based on GPRS/GSM(general packet radio service/global system for mobile communication) hybrid communications was developed for data acquisition and transmission from distributed monitoring points in industrial environments.The RTU samples data at adjustable intervals and uploads the data to the remote monitoring centre.When the GPRS network is congested,the RTU switches to short message service(SMS) mode to resume data transmission with data guaranteed integrity.The RTU... |
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