基于无线传感网络的耕种机具空间力监测系统开发与试验  

Development and test on three dimension force monitoring system for farming machinery based on wireless sensor network

作　　者：尹彦鑫[1] 郑永军[1] 徐博[1] 谭彧[1] 王书茂[1] 

机构地区：[1]中国农业大学工学院,北京100083

出　　处：《农业工程学报》2013年第8期62-68,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金："十二五"国家科技支撑计划(轻简化水田作业关键装备研制与示范;2011BAD20B08)

摘　　要：针对实时监测耕种机具作业中所受空间力大小,该文提出了一种能够在现场和远程实时监测耕种机具受力情况并带有提示报警的监测系统。该系统采用基于Zigbee的WSN(wireless sensor network)完成数据的采集和近程传输,采用嵌入式处理器ARM11作为现场监测终端的中央处理单元CPU,并搭建WinCE6.0操作系统,完成数据交换、处理和监测报警等功能。通过安装在耕种机具上的测力传感器,实现对耕种机具受力情况的实时检测。经土槽试验测试,系统实现了耕种机具空间力的实时监测以及监测数据的存储,人机界面交互性良好,可为耕种机具的研究设计提供技术支持。With energy consuming seriously increasing, energy conservation became important in every industry. In agricultural areas, focus was fixed on the energy conservation of farming machinery. An effective way to analysis energy consumption and work efficiency by measuring the force of the key part of farming machinery became a hot research topic due to the fact that the force could partly reflect the energy consumption and work efficiency of farming machinery. In this paper, a remote real time monitor system based on WSN was designed for the purpose of monitoring three dimension forces on farming machinery during work time, and meantime it was able to give alarm when the monitored signal was out of the pre-supposed range. For measuring and transmitting sensors’signal, the system adopted the Zigbee protocol based WSN to realize data acquisition and transmission. A wireless data collector was designed with a JN5139 wireless module as its main processor, in which an analog signal adjusting circuit was designed for measuring different range signals. The JN5139 module has a serial interface with TTL signal output, in order to connect the collector to a computer by a serial interface cable, a TTL to RS232 signal circuit was necessary. In addition, the collector’s power consumption was supplied by a rechargeable battery, and a power management circuit was required. For exchanging, processing and monitoring data from WSN, an embedded processor ARM11 was put to use as the central processor unit of the monitor device, and on which, a Wince6.0 software environment was established. For watching and operating easily, a human-computer interface software was developed under VS2005 by the C＋＋ programming language. By the help of the human-computer interface software, the serial interface parameter could be set for matching the serial interface in collector and the three dimension forces threshold could be set ether for giving alarm and besides, the monitor data could be saved to a storage device for further research. Six ten

关 键 词：农业机械 无线传感网络 监测 耕种机具 土槽 空间力 

分 类 号：S222[农业科学—农业机械化工程]