Implementation of a Low-Cost Energy and Environment Monitoring System Based on a Hybrid Wireless Sensor Network
- Authors
- Kim, Dong Sik; Chung, Beom Jin; Son, Sung-Yong
- Issue Date
- Jul-2017
- Publisher
- HINDAWI LTD
- Citation
- JOURNAL OF SENSORS, v.2017
- Journal Title
- JOURNAL OF SENSORS
- Volume
- 2017
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/7528
- DOI
- 10.1155/2017/5957082
- ISSN
- 1687-725X
- Abstract
- A low-cost hybrid wireless sensor network (WSN) that utilizes the 917 MHz bandWireless Smart Utility Network (Wi-SUN) and a 447 MHz band narrow bandwidth communication network is implemented for electric metering and room temperature, humidity, and CO2 gas measurements. A mesh network connection that is commonly utilized for the Internet of Things (IoT) is used for the Wi-SUN under the Contiki OS, and a star connection is used for the narrow bandwidth network. Both a duty-cycling receiver algorithm and a digitally controlled temperature-compensated crystal oscillator algorithm for frequency reference are implemented at the physical layer of the receiver to accomplish low-power and low-cost wireless sensor node design. A two-level temperature-compensation approach, in which first a fixed third-order curve and then a sample-based first-order curve are applied, is proposed using a conventional AT-cut quartz crystal resonator. The developed WSN is installed in a home and provides reliable data collection with low construction complexity and power consumption.
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Collections - IT융합대학 > 전기공학과 > 1. Journal Articles
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