基于太阳能的温室无线传感器网络监测系统设计

Greenhouse Wireless Sensor Network Monitoring System Design Based on Solar Energy

设计提出了基于太阳能的温室无线传感器网络监测系统设计,利用无线收发设备传输数据,无需专门架线,系统结构简单,节省了人力物力,通过监测管理中心可实现对温室温湿度的控制、二氧化碳含量测量、光照度信息采集和图像监控等功能,实现真正意义上的无人值守,与普通无线技术相比,还具有低功耗、低成本和网络容量大等特点。传感器节点采用基于太阳能的能量供给系统无线传感器网络节点结构。该结构采用MSP430超低功耗MCU以及低功耗网络传输芯片nRF24L01,尽可能降低系统能耗。另外,该系统利用多级能量内存,结合能量管理与能量转移技术,使由太阳能电池采集到的能量得到合理的利用,从而构成具有自我管理能力的能量供给系统,实现了为无线节点永久性供电与无线传感网络无限使用的目的。

This paper puts forward greenhouse wireless sensor network monitoring system design based on solar energy. It transmits data through wireless receiving and sending equipment without setting up electric wiring. The system structure is simple, which saves the manpower and material resources. The monitoring and management center can control the temperature and humidity of the greenhouse, measure the carbon dioxide content, collect the information about intensity of illumina- tion, monitor and control the pictures. In this way, then no manpower will be needed. Compared with ordinary wireless technology, this system design consumes less energy, costs less money and has large internet capacity. The sensor nodes receive the solar energy and supply it to the wireless sensor network. This system adopts MSP430 MCU with super low energy consumption and network transmitting chip nRF24L01 with low energy consumption to reduce system consumption as much as possible. What＇s more, this system adopts multilevel energy memory. It combines energy manage- ment with energy transfer, which makes the energy collected by solar energy batteries be used rea- sonably. Therefore, the self-managing energy supply system will be established, and the wireless nodes will receive permanent power supply and the wireless sensor network can be used without llmi- tations.