基于太阳能供电的无线传感器节点设计.docVIP

基于太阳能供电的无线传感器节点设计 摘要 随着国家科技兴农的政策提出，农业信息科技管理越来越受到社会的关注，而随着现代化农业、无线通信技术、计算机嵌入式技术等现代科技的发展，对农业生长环境的无线监测研究得到了越来越多人的重视。新型ZigBee技术作为一种新型的近距离、低功耗、低复杂度、低速率、低成本无线通信技术在各个领域具有广泛的应用，尤其在农业生长环境监测方面得到广泛应用。 本课题依托江西省青年科学基金资助项目，采用TI公司CC2530芯片，设计一种基于太阳能供电的ZigBee的WSN节点。本课题系统分的析了基于ZigBee的WSN节点中各部分能量的消耗，并考虑了因其覆盖面积广、节点数量较多、节点寿命变短等特性，提出了基于太阳能供电的ZigBee的WSN节点设计方案。 本论文主要由以下几部分工作组成： (1) 以CC2530为核心设计制作无线传感器节点射频板硬件电路，并在此基础上加入前段功率放大芯片CC2591从而制作第二版无线传感器节点电路板； (2) 以CN3063为电源管理芯片、CN301为电压检测芯片设计制作太阳能硬件供电路,使得输出电压为3.3V，从而保证无线传感器节点能够室外自主供电； (3) 使用第一版和第二版无线传感器节点为处理核心，采用SHT10和TSL2561作为温度和光照强度传感器，实现对温湿度和光照强度的监测和数据的无线传输； (4) 对两个版本的无线传感器节点底板和射频板进行功耗测试与分析。 测试结果表明，太阳能电路板可提供3.3V稳定电源，WSN节点之间可以进行通信，其功耗很低、传输距离较好。整个系统工作稳定，可达到预期效果。 关键词：The design of wireless sensor node based on solar power supply Abstract Along with the national science and technology policy,the agricultural information and technology management are more and more attractive to the society，and with the development of modern agriculture, the wireless communication technology, embedded computer technology, modern science and technology, the wireless monitoring study on agricultural growth environment has been gain more and more peoples attention. Model ZigBee is a new short-range, low-power, low complexity, low rate, low cost wireless communication technology has been widely applied in various fields, especially widely used in agricultural growth and environmental monitoring. This research is based on the project of Jiangxi Province Youth Science Fund, using TIs CC2530 chip, designed a WSN node based on solar powered of ZigBee. the subject system’s analysis of each part is base on the energy consumption of ZigBee in the WSN node , and considering its wide coverage, node number, the shorter life of the node and other characteristics, proposed the WSN design scheme of solar power supply based on ZigBee. This thesis is mainly composed of the following parts: (1) with CC2530 as the core design of wireless sensor node hardware circuit of RF boar