應用 Zigbee 之液面無線感測監控系統
指導老師:陳振雄 老師 組員:粘智宣、柯孟鑫、張柏隆、郭忠祐、陳忠杰
建國科技大學 電腦與通訊工程系
一、簡介： 無線感測器網路(Wireless Sensor Network；WSN)
是由許多在空間中分布的自動裝置組成的
一種無線通訊網路，這些裝置使用感測器來監控或測量空間中的環境狀況（比如溫度、聲音、
振動、壓力、運動或污染物）。發展最初起源於戰場監測等軍事應用，進而慢慢演變成民用
的設備，透過無線網路所建立互動式網路可以減少傳輸線的建置。WSN 使用 IEEE 標準
802.15.4 的通訊協定，也就是通稱的 ZigBee。ZigBee 具有低速、低耗電、低成本、支援大
量網路節點、支援多種網路拓撲、低複雜度、快速、可靠、安全。WSN 採用多點跳躍傳輸，
比起傳統單點傳輸更可降低能源損耗及克服長距離衍生的障礙物阻擋傳輸問題。WSN 可以
解決過去實體線路傳輸面臨的問題，克服如高溫危險區域，架設線路困難及省去布建後定期
維護，並減少大量線路，成本估計最多可以減少 80%。具備容錯機制，自我組織、修復、
重建能力的優點。
二、動機： ZigBee 通訊協定的 WSN 可以運用的範圍很廣，而且已有很多成熟的開發平台可以於應用研
究，因此入門容易。以液面感測監控之應用為例，我們可以立即製作一些簡單電路結合 WSN
開發平台來展現 WSN 之功效。
三、功能： WSN 教學展示、開發液面感測無線監控電路。
四、特色： 結合簡單的電子電路和 WSN 開發套件(硬體和軟體)，展示 WSN 之操作原理和功能，達到
教學與應用發展之目的。
五、原理： 1.利用現有的 WSN 開發平台，自行撰寫或改寫控制程式(韌體)並燒錄至 WSN 開發板之晶
片，藉以完成 WSN 之 Coordinator(監控端)、End Device(感測端)等設定與訊號傳遞方式。.
2.設計並完成液面感測和警示電路並連結於 WSN。
3.透過 End Device 端完成感測訊號之傳遞，Coordinator 端則是接收訊號並進行警示或遠端無
線控制。
六、設備： 盛暘科技公司 FT-6220 無線感測實作套件、個人電腦、VB 程式語言、電路板、電阻式感測
器、抽水馬達、水槽*2。
七、運用時機： 無線感測網路教學示範或實習、液面感測應用開發。
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Monitoring and Control System of Liquid Level Using
Zigbee-Wireless Sensor Network
Advisor: Jenn-Shyong Chen Members: Chih Hsuan-Nien, Meng Xin-Ke,
Bo Long-Zang, Guo-Jhong-You, Chen
Jhong-Jie Department of Computer and Communication Engineering,
Chienkuo Technology University
1. Introduction: Wireless sensor network (WSN) is composed of
many automatic devices located in the space.
These devices have sensors that can monitor or measure the
environmental conditions such as
temperature, sound, vibration, pressure, motion, and pollutants.
WSN was developed initially for
the purpose of military, and then turned eventually into the
equipment for civil use. It can set up
interaction networks easily as well as reducing the usage of
cable lines. WSN is based on the
wireless standard IEEE 802.15.4, namely, the so-called ZigBee.
Zigbee has advantages of low
power consumption, low cost, and easily developing.
2. Motivation: WSN, using the ZigBee protocol, yields a variety
of usages, and there have been many
development platforms available for application researches.
Therefore, it is easy to study with
WSN. For the measurement of liquid level and its wireless
transmission, it is possible for us to
fabricate some simple circuits that can be combined with WSN
platforms to demonstrate the usage
of WSN.
3. Purpose: Demonstration of WSN and developing wireless sensing
circuits for measurement and control of
liquid level.
4. Characteristic: Combining simple circuits and WSN boards to
demonstrate operational principle and functions of
WSN, and to achieve the goals of tuition and application
research.
5. Principle: 1. Code (or revise) and burn the firmware into the
chip of WSN developing boards, and then set
up the functions of coordinator and end devices, as well as the
way of signal propagation.
2. Design and fabricate the warning circuits of liquid level,
and then combine these circuits with
the WSN developing boards.
3. Employ end device for signal transmission, and use
coordinator for receiving signals, warning,
and wireless remote control.
6. Equipment: FT-6220 e-Home board released by Surewin
Technology Company, personal computer, C software,
circuit board, Visual Basic, resistive sensors, pumping motor,
and water tanks*2.
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7. Conclusion: The products are useful for tuition and practical
training of WSN, and also beneficial for
measurement and monitoring of liquid level.
8. Advisor’s Comments: Using the existed WSN developing
platform, this study combined warning circuits with WSN
platforms. The warning circuits were designed and fabricated
successfully to demonstrate the
practical use of WSN in measurement of liquid level. It is hoped
that the study can be applied to
practical circumstances.
9. Corporate Certification of the Project Report: Company name:
Ying Bang Company, Ltd
Representative director: Manager Huang
TEL: 04-7286755
Comment: The students have learned some sensor applications,
circuit design and circuit board
production, wireless sensor network, and so on. The monitoring
and control system of liquid level
can be applied to teaching and real situations.
10. Picture:
Receiver/Coordinatior Monitoring interface coded by VB
Warning circuit at end device Water tanks and end device
CC-01
5-電通系 15-電通系 25-電通系 35-電通系 4
