摘要
以遥控报警原理、GNSS定位原理为基础,设计了实现森林资源连续清查固定样地标记装置,该装置由主程序模块、定位解算模块、遥控报警模块、数据传输模块、样地信息存储更新模块等组成。通过在Cortex-M3上移植FreeRTOS操作系统,并利用C语言进行汇编实现样地标记信息的读取与写入、遥控报警、标记定位等功能。针对定位信息数据传输,在微信平台上通过调用百度地图的API开发实现普通手机用户到样地桩的路线规划。通过试验验证,利用此固定样地标记装置,可将固定样地的复核效率较传统样桩提高324%左右,并且通过此装置可以直接读取固定样地历史信息及写入实时监测数据,解决了传统固定样地标记桩无法进行样地信息记录及无法快速找到、遥控监测等问题。
In order to solve the problem of finding the fixed plot difficulty for continuous forest inventory, improve the efficiency and reduce the cost, a permanent sample plot marking device was designed based on the principle of remote control alarm and GNSS positioning. The marking device was composed of main program module, positioning decoding module, remote control alarm module, the data transmission module, the sample update information storage module, etc. FreeRTOS operating system was transplanted on Cortex- M3, and C ＋ ＋ was used to carry out most of the functions such as remote control, low frequency positioning etc. For the location of information data transmission, a sample API was developed on the WeChat platform by calling a Baidu map to realize the route planning for general mobile phone users. When the investigators load the APP for searching.the plot in a certain area of the marker, the remote alarm would automatically start ringing. Then the location would be sent to the handset, which would help them to find the marker more quickly. Verified by experiments, the efficiency of the marking device was about 324% higher than that of the traditional sample plot. Meanwhile, the device can directly read and write the historical information and real-time monitoring data. It was showed that the equipment can solve problems such as marking device finding difficulties and no history inventory information. Therefore, it can be used and promoted in the permanent plot for continuous forest inventory in the future.
作者
胡杨
孙忠秋
吴发云
王伟
彭道黎
HU Yang;SUN Zhongqiu;WU Fayun;WANG Wei;PENG Daoli(College of Forestry, Beijing Forestry University, Beijing 100083, China;Academy of Forestry Inventory and Planning, State Forestry Administration, Beijing 100714, China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2018年第6期191-197,共7页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家林业局948项目(2015-4-32)
植被与环境变化国家重点实验室开放项目(LVEC-2017kf02)
国家自然科学基金青年基金项目(31400426)
关键词
森林资源连续清查
固定样地
标记桩
遥控报警
定位导航技术
continuous forest inventory
permanent sample plot
marking device
telecontrol alarm
positioning and navigation technology
