無線感測網路於溫室監控系統之設計與應用

A Wireless Sensor Network Design and Application for Greenhouse Monitoring System

陳建霖(Chien-Lin Chen)

指導教授 ： 鍾文耀

中原大學/工學院/電子工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200563

摘要

本論文研究目的為利用ZigBee無線通訊技術建立一應用於溫室監控之無線感測網路系統，具有低成本、低功耗和高擴充性等優點，可感測並記錄溫室中的環境參數，藉以輔助農場管理者即時掌握並維護各種農作物在溫室設施栽培中所需的最佳生長環境，獲得更高的產量與品質。
本論文提出可應用於溫室監控系統的ZigBee應用類別，並在ZigBee叢集庫的規範之下，自行定義此應用類別所具有的叢集與屬性等功能以建立無線節點，包含主控節點、延伸路由節點以及溫室感測節點，並開發這些節點的硬體平台。延伸路由節點使用太陽能充電模組與鉛酸電池供應電力；溫室感測節點整合溫度、相對溼度、光照度、以及靜態影像擷取模組等感測元件，立即或定時回傳感測結果，並顯示在自行撰寫的電腦人機介面中。
實驗結果顯示太陽能充電模組的轉換效率為70.9%，延伸路由節點在12V電壓下的電流消耗為51mA；溫室感測節點的靜態影像由1跳至3跳的無線傳輸時間分別為2分、2分20秒、2分50秒，在5V電壓下的電流消耗為89mA；主控節點在5V電壓下的電流消耗為35mA。

關鍵字

CC2530 ； 無線感測網路 ； 精緻農業相關研究 ； 溫室監控 ； ZigBee

並列摘要

The main purpose of this research is to develop a low-cost, low-power, flexible scale wireless sensor network system for greenhouse monitoring. The system could be used for sensing and recording environmental parameters in the greenhouse to assist farm managers to maintain the best environment for the growth of a variety of crops in the greenhouse facility cultivation, and to obtain higher productivity and quality.
This research has proposed a ZigBee application profile which can be applied to greenhouse monitoring systems, and defined clusters and attributes for this profile based on ZigBee cluster library, to create wireless nodes such as main-control node, range-extended node and greenhouse-sensing node. The range-extended node was powered by lead-acid batteries and solar charging modules; greenhouse sensor nodes integrated temperature, relative humidity, light sensors, and still image capture module. These sensor measurement results could be send back immediately or from time to time, and then display on graphic user interface of personal computer.
The experimental results show that the power conversion efficiency of solar charging module is 70.9%, the current consumption of the range-extended node is 51mA at 12 voltages; the still image transmission time of greenhouse sensing node from 1 to 3-hop wireless transmission are 2 minutes, 2 minutes and 20 seconds, 2 minutes and 50 seconds. The current consumption of greenhouse-sensing node is 89mA at 5 voltages; the current consumption of main-control node is 35mA.

並列關鍵字

CC2530 ； wireless sensor network ； greenhouse monitoring ； ZigBee ； Relative research of precision agriculture

參考文獻

[1] http://www.coa.gov.tw/view.php?catid=19950, “推動精緻農業健康卓越方案－打造健康、卓越、樂活的新農業”, 行政院農委會資訊網.

[22]李哲民, “葉綠素含量讀出系統與晶片化實現”,中原大學電子碩士論文, 2012.

[2] A. Delin, P. Jackson, “The Sensor Web-A New Instrument Concept”, SPIE’s Symposium on Integrated Optics, 20-26 Jan 2001.

[3] Xuemei Li, Yuyan Deng, Lixing Ding, “Study on precision agriculture monitoring framework based on WSN”, Anti-counterfeiting, Security and Identification, 182-185, 20-23 Aug. 2008.

[5] Tokihiro Fukatsu, Teruaki Nanseki, “Monitoring System for Farming Operations with Wearable Devices Utilized Sensor Networks Sensors”, Sensors, 6171-6184, Aug. 4 2009.