Title
An IoT Sensor Node SoC with Dynamic Power Scheduling for Sustainable Operation in Energy Harvesting Environment
Abstract
This paper describes a low-power IoT sensor node SoC that can be used for factory automation and wearable healthcare applications. It features dynamic power scheduling method suitable for the environment that works with an energy harvester. Our proposed SoC architecture is composed of a low power (60 nA) RTC, a normally-off RF which has fast start-up time (0.5 μs), and other low-power components. A mixed-signal SoC has been fabricated using the TSMC 65 nm LP process. The sensor node system equipped with dynamic power scheduling consumes about 3.4 μW when the activity ratio is 0.1%. Evaluation results show that the proposed method can reduce about 51% of the power consumption compared with the case without dynamic power scheduling in sensor node SoC. Also, the parameters of the system in energy harvesting environment can be adjusted under the trade-off with power consumption and measurement accuracy according to the application requirements.
Year
DOI
Venue
2019
10.1109/A-SSCC47793.2019.9056902
2019 IEEE Asian Solid-State Circuits Conference (A-SSCC)
Keywords
DocType
ISBN
IoT,energy harvesting devices,low-power devices
Conference
978-1-7281-5107-6
Citations 
PageRank 
References 
0
0.34
0
Authors
12
Name
Order
Citations
PageRank
Yuji Yano112.38
Seiya Yoshida201.01
Shintaro Izumi38231.56
Hiroshi Kawaguchi439591.51
Tetsuya Hirose500.68
Masaya Miyahara616532.68
Teruki Someya7216.48
Kenichi Okada8497100.11
Ippei Akita9156.31
Yoshihiko Kurui1000.34
Hideyuki Tomizawa1100.34
masahiko yoshimoto1211734.06