【作者】 张百杰；

【导师】 李文彬； 阚江明；

【作者基本信息】 北京林业大学 ， 森林工程， 2012， 硕士

【摘要】 树干直径是林业测量的主要测量因子,然而当前的测量方式不能满足实时、连续地测量。本研究建立了一种可以实现实时、连续测量的立木直径生长量及环境信息远程监测系统,该系统通过将自行设计的树径(树径生长量)自动测量装置、多种环境信息传感器和成熟的无线传感器网络结合应用而建立。针对节点设计了节点的防护装置、并将太阳能应用到树木测量及信息传输的节点和传感器的供电系统中,同时针对系统设计了远程监测界面。该监测系统具有低功耗、反应灵敏、测量精准、可靠性高以及自供电等特性,树径测量精度可以达到5μm。本研究主要有2个创新点：(1)建立了基于无线传感器的立木直径生长量及环境信息远程监测系统,实现了活立木树径生长量及其环境信息的实时远程监测；(2)研制了一种树径(树径生长量)自动测量装置,并针对此结构设计了相应的树径(树径生长量)数学模型(申请了发明专利)。更多还原

【Abstract】 The stumpage diameter is the main measuring factor of the forestry measurements. However, the current measurement mode can not meet real-time and continuous measurement. The study established a kind of system---remote monitoring system of stumpage diameter growth and environmental information which can realize the real-time and continuous measurement. This system is set up by combining the self designed Tree Diameter Automatic Measuring Device, several environmental sensors and the mature wireless sensor network. At the same time, node protective equipment and solar power application were designed for every node, and remote monitoring interface was developed for the whole system. This remote monitoring system has some features such as low power, responsive, precise measuring, high reliability,"green" power supply, efc. Moreover, the measurement accuracy of the stumpage diameter can reach5u m.There are two innovative points in the thesis:(1) Established the remote monitoring system of stumpage diameter growth and environmental information, enabled the accurate remote monitoring of standing tree growth and woodland environmental information in real time to be a reality;(2) Developed a kind of tree diameter (growth) automatic measuring device and related mathematical model for coverting the output from to the value of tree diameter (applied for a patent).更多还原