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Abstract
The key challenges of local sensor networks are in supporting high sensor density, information security, physical size, and especially energy efficiency at a level that could eliminate the need for batteries or external power supplies. This article presents a novel scheme that answers all issues at the cost of minor information losses in low data rate applications that tolerate latency. Experimental verification is made using a sensor node implemented on a flexible electronics platform. Lightly encrypted data are transmitted by embedding it into Bluetooth advertising packets, contributing to ultralow-energy wireless power consumption, and theoretically enabling an unlimited number of nodes in the local network. In the experiments, the energy dissipation per transmitted 14-B information packet varied between 19.83 and 105.93 mu text{W} depending on the system configuration, while the data loss rates ranged from 7.4% to 0.004%, respectively. As the flexible substrate can be attached to various surfaces, the applications extend from wearable to industrial condition monitoring devices.
Original language | English |
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Article number | 9505207 |
Number of pages | 7 |
Journal | IEEE Transactions on Instrumentation and Measurement |
Volume | 71 |
DOIs | |
Publication status | Published - 2022 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Advertising
- Batteries
- Biomedical monitoring
- Receivers
- Temperature measurement
- Wireless communication
- Wireless sensor networks
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Dive into the research topics of 'Physically flexible ultra-low power wireless sensor'. Together they form a unique fingerprint.Projects
- 1 Finished
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Smart2Go: Smart and Flexible Energy Supply Platform for Wearable Electronics
Tuomikoski, M. (Participant)
1/01/19 → 31/03/22
Project: EU project
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