Next Article in Journal
Modeling of Distributed Sensing of Elastic Waves by Fiber-Optic Interferometry
Next Article in Special Issue
Channel-Based Key Generation for Encrypted Body-Worn Wireless Sensor Networks
Previous Article in Journal
Continuous Indoor Positioning Fusing WiFi, Smartphone Sensors and Landmarks
Previous Article in Special Issue
A Self-Organizing Interaction and Synchronization Method between a Wearable Device and Mobile Robot
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(9), 1430;

Effect of Sensors on the Reliability and Control Performance of Power Circuits in the Web of Things (WoT)

Department of Electrical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Agency for Defense Development, Daejeon 34186, Korea
Author to whom correspondence should be addressed.
Academic Editors: Massimo Poncino and Ka Lok Man
Received: 25 June 2016 / Revised: 10 August 2016 / Accepted: 31 August 2016 / Published: 6 September 2016
Full-Text   |   PDF [3270 KB, uploaded 6 September 2016]   |  


In order to realize a true WoT environment, a reliable power circuit is required to ensure interconnections among a range of WoT devices. This paper presents research on sensors and their effects on the reliability and response characteristics of power circuits in WoT devices. The presented research can be used in various power circuit applications, such as energy harvesting interfaces, photovoltaic systems, and battery management systems for the WoT devices. As power circuits rely on the feedback from voltage/current sensors, the system performance is likely to be affected by the sensor failure rates, sensor dynamic characteristics, and their interface circuits. This study investigated how the operational availability of the power circuits is affected by the sensor failure rates by performing a quantitative reliability analysis. In the analysis process, this paper also includes the effects of various reconstruction and estimation techniques used in power processing circuits (e.g., energy harvesting circuits and photovoltaic systems). This paper also reports how the transient control performance of power circuits is affected by sensor interface circuits. With the frequency domain stability analysis and circuit simulation, it was verified that the interface circuit dynamics may affect the transient response characteristics of power circuits. The verification results in this paper showed that the reliability and control performance of the power circuits can be affected by the sensor types, fault tolerant approaches against sensor failures, and the response characteristics of the sensor interfaces. The analysis results were also verified by experiments using a power circuit prototype. View Full-Text
Keywords: power circuit; Web of Things (WoT); energy harvesting; reliability; filter; sensors power circuit; Web of Things (WoT); energy harvesting; reliability; filter; sensors

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Bae, S.; Kim, M. Effect of Sensors on the Reliability and Control Performance of Power Circuits in the Web of Things (WoT). Sensors 2016, 16, 1430.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top