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Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy
Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
2015 (English)Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesisAlternative title
Effektsnål strömdetekterande nod driven av utvunnen strö-energi från elektriska fält (Swedish)
Abstract [en]

In this thesis, the possibility of harvesting energy from a multicore power cableconnected to a power outlet is presented and evaluated. By surrounding a powercable with a conductive material connected to ground, it is shown that the dif-ference in potential between the power cable and the conductive material causesa capacitance which can charge a capacitor that in combination with an energymanagement circuit can be used to wirelessly transmit data with an interval de-pending on factors like the length of the surrounding material and the type ofcable it is placed around. In addition to this, a technique to, in a non-invasiveway, sense whether there is alternating current flowing in a multicore power ca-ble is brought up. The results show that this technique can be used to detectalternating current without having a device connected between the power cableand the power outlet. These two sections combined are used to design a surveil-lance system that should monitor consumer electronics in the home environmentwhere there is a fire hazard. The system should send out a warning signal thatis visible for the homeowner to remind the user to switch off the power of theelectronic devices before leaving home.

Place, publisher, year, edition, pages
2015. , 109 p.
Keyword [en]
Energy Harvesting, Low Power, Sensor, Wireless Communication
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-121520ISRN: LiTH-ISY-EX-ET--15/0437--SEOAI: oai:DiVA.org:liu-121520DiVA: diva2:856109
External cooperation
Syntronic
Subject / course
Electrical Engineering
Presentation
2015-06-15, Nollstället, B-building, Linköping University, Linköping, 11:48 (Swedish)
Supervisors
Examiners
Available from: 2015-09-23 Created: 2015-09-23 Last updated: 2015-09-23Bibliographically approved

Open Access in DiVA

fulltext(10920 kB)441 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
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