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The Design Of Wireless Dynamic Sensing System For Monitoring The Environment Of Greenhouse

Posted on:2015-06-07Degree:MasterType:Thesis
Country:ChinaCandidate:Y Y SunFull Text:PDF
GTID:2283330467468878Subject:Agricultural information technology
Abstract/Summary:PDF Full Text Request
With the rapid development of greenhouse farming, the managers obtaininformation on crop growth environment (such as temperature and humidity,illumination, soil temperature, etc.) timely and accurately,which is very importantfor management of crop growth. The traditional way of manually collectinginformation not only consume more time and energy, but also obtain the datasubjectivity and laggardly in many regards.In addition, the managers will spentmuch valuable time on collecting the environmental information, which is impact ofthe effective management of crops and hinders the development of greenhousefarming.The existence of a wired sensor wiring cumbersome acquisition mode,upgrade and maintenance difficulties and other limitations. Therefore, I designed aprogram of wireless intelligent field information collection system.First, build the hardware aspects of the system using ZigBee wirelesscommunication technology to capture greenhouse niche data, and to achieve accurateand efficient data transfer and conversion by reconfiguring things gateway.Real-timeautomatic acquisition of niche greenhouse temperature, humidity, illumination, soiltemperature and other environmental factors, filtering, and remote release, and toachieve coordination between sensor nodes and node data quickly and accuratelytransmitted over wireless networks, Furthermore multiple parameters for dynamicreal-time remote sensing.Second, the collected data should be appropriate filtering, to improve thecredibility of the data.In the process of data collection, the application of Kalmanfilter algorithm to reduce data collection errors. In the data processing process, theapplication of the median filtering algorithm statistical average data per ten minutes,the system appears to reduce accidental errors.Finally, the design of the monitoring system using Java Web technologies toachieve the monitoring system has user management, user rights management,systems management, information inquiry farmland four functional modules. Thesystem can complete the alarm and abnormal data prompts.
Keywords/Search Tags:Greenhouse, ZigBee, Internet of Things, Kalman filtering algorithms, Java Web
PDF Full Text Request
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