摘要温湿度、光照度变化是影响纸质材料老化变质的关键因素，合理控制图书馆内的温湿度和光照度是做好图书保存的首要工作。湿度若长时间低于45RH以下，纸张会因干燥而脆裂，造成物理性朽坏甚至粉化。温度达到10℃的时候，大多数蛀虫和霉菌可以生存并且开始活跃。因此为了更好的进行图书保存工作，保持适宜的温湿度和光照度，对图书馆的内部环境进行实时监控是非常必要的。除此之外，图书馆作为火灾一级保护单位，我们也应实时对图书馆内的烟雾浓度进行监测。39762
本课题将传感器技术、计算机技术、无线通信技术、虚拟仪器技术相结合，从硬件方面和软件方面对图书馆温度、湿度、光照度、烟雾浓度等环境因子进行监控系统的设计。
硬件包括传感器节点模块、汇聚节点模块和网关节点模块。其中，传感器节点模块负责数据采集并以无线通信的方式将数据发送到汇聚节点。而汇聚节点选择与网关节点最近最短的传输路径将数据传输到网关节点。网关节点负责接收来自最近汇聚节点传来的数据，将数据通过RS-232传输给PC机。数据管理平台采用LabVIEW软件设计开发，实现良好的人机交互。
毕业论文关键词：   无线传感器网络   ZigBee技术     LabVIEW  
Abstract
Temperature and humidity, light intensity change is a key factor in the impact of aging deterioration paper material, the reasonable control of temperature, humidity and light intensity within the library is to do the most important work of reserving  books. If the humidity is lower than 45RH less time, resulting in physical immortality or even powder due to dry and brittle paper. When the temperature reached 10 ℃, most moths and mildew can survive and become active. Therefore, in order to better  conserve work books, maintain the appropriate temperature, humidity and light intensity of the internal environment for real-time monitoring of the library is necessary. In addition, the library as a fire protection unit level, we should also monitor  the concentration of smoke within the library in real time.
This paper sensor technology, computer technology, wireless communications technology, virtual instrument technology, from hardware and software to design monitoring system for the library as temperature, humidity, light intensity, smoke concentration and other environmental factors.
Hardware includes a sensor node module, the sink module and gateway node module.The sensor nodes module is responsible for data collection and  transmits data to the sink nodein a wireless communication. The aggregation node selects the nearest gateway node shortest transmission path to transfer data to the gateway node.   Gateway node receives data from the nearest sink node, RS-232 data transfer to the PC. Data management platform using LabVIEW software design and development, to achieve a good human-computer interaction.
Keywords:  wireless sensor networks  ZigBee technology  LabVIEW
目  录
摘  要    I
Abstract    II
1 绪论    1
1.1 课题研究背景及意义    1
1.2  国内外研究现状    1
1.2.1  图书馆环境监控系统的国内研究现状    1
1.2.2  图书馆环境监控系统的国外研究现状    1
1.3  研究目标与要求    2
2 系统设计方案分析论证    3
2.1系统硬件结构总体设计方案    3
2.1.1 系统网络架构    3
2.1.2 网络拓扑结构    3
2.1.3 ZigBee芯片    4
2.2传感器节点设计方案论证    5 ZigBee+LabVIEW图书馆环境监控系统设计+电路图:http://www.751com.cn/zidonghua/lunwen_40426.html