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出 处:《计算机工程与设计》2013年第1期126-130,共5页Computer Engineering and Design
摘 要:为实现波浪浮标与远程数据中心之间的数据传输,提出了波浪浮标下位机系统的设计。系统基于通用无线分组业务GPRS,以单片机为核心处理单元,采集到的模拟电压信号转换为数字信号后,自动打包,由SIM300模块向上位机发送,完成下位机与上位机之间的无线通信;同时系统还可接收来自上位机数据中心的控制命令,单片机对其分解后可以用来设置系统采集信号的时间间隔、物理量等工作参量。分析结果表明,与传统传输方式相比较,该方案可以在低成本的前提下实现较高的传输效率,具有一定的实用价值。To achieve the bidirectional communication between wave buoy and remote data center, a design of lower computer system is put forward based on the GPRS (general packet radio service) wireless technology. The MCU (micro control unit) is taken as the core of whole system, after the analog voltage signal is collected and packaged automatically after A/D conversion, so the preprocessed signal is sent to the upper computer system. The SIM300 module takes charge of the transmission communi- cation between the upper computer system and the lower computer system. At the same time, commands from upper computer system is used to control and set the mode of current working by the way of interruption. The system analysis shows that this so- lution possesses of transmission efficiency under the low cost, and a good feasibility and high stability can decrease the professional maintain with a definite practical value.
分 类 号:TP319[自动化与计算机技术—计算机软件与理论]
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