Intermittently-powered bluetooth that works

Winkel, Jasper de; Tang, Haozhe; Pawełczak, Przemysław

doi:10.1145/3498361.3538934

Cited by 12 publications

(2 citation statements)

References 55 publications

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“…This allowed them to not only communicate with a base station but also potentially communicate among each other and form peer-to-peer or mesh networks. This presents multiple opportunities to both increase operational range through multi-hop communication while also presenting routing and scheduling challenges because of variability in solar power on terrains with complex geographic features (44). We also observed that in brighter conditions, our actuator charged fast enough to be triggered repeatedly.…”

Section: Discussionmentioning

confidence: 85%

Solar-powered shape-changing origami microfliers

Johnson,

Arroyos,

Ferran

et al. 2023

Sci. Robot.

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Using wind to disperse microfliers that fall like seeds and leaves can help automate large-scale sensor deployments. Here, we present battery-free microfliers that can change shape in mid-air to vary their dispersal distance. We designed origami microfliers using bistable leaf-out structures and uncovered an important property: A simple change in the shape of these origami structures causes two dramatically different falling behaviors. When unfolded and flat, the microfliers exhibit a tumbling behavior that increases lateral displacement in the wind. When folded inward, their orientation is stabilized, resulting in a downward descent that is less influenced by wind. To electronically transition between these two shapes, we designed a low-power electromagnetic actuator that produces peak forces of up to 200 millinewtons within 25 milliseconds while powered by solar cells. We fabricated a circuit directly on the folded origami structure that includes a programmable microcontroller, a Bluetooth radio, a solar power–harvesting circuit, a pressure sensor to estimate altitude, and a temperature sensor. Outdoor evaluations show that our 414-milligram origami microfliers were able to electronically change their shape mid-air, travel up to 98 meters in a light breeze, and wirelessly transmit data via Bluetooth up to 60 meters away, using only power collected from the sun.

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Section: Discussionmentioning

confidence: 85%

Solar-powered shape-changing origami microfliers

Johnson,

Arroyos,

Ferran

et al. 2023

Sci. Robot.

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“…For example, the harvested power can be stored in a capacitor and, before the energy runs out, the system state is saved to non-volatile memory to continue when there is enough energy again. Intermittent computing has been utilized for several computing systems [3,4] as well as for wireless communication systems using Bluetooth [5].…”

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confidence: 99%

Intermittent Low-Power Wide Area Networks

Orfanidis,

Bischoff,

Pezzarossa

2023

Proceedings of the 29th Annual International Conference on Mobile Computing and Networking

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Low-Power Wide Area Networks (LPWAN) o er long-range communication with low energy consumption, making them ideal for IoT applications powered by energy harvesting. However, unpredictable energy harvesting rates can lead to sub-optimal device operation. To tackle this, the intermittent computing paradigm has been proposed. In this paper, we explore the combination of intermittent computing and LPWANs by proposing four di erent communication solutions based on LoRa and designed to match common application scenarios and requirements. For the solutions, we also present experimental energy estimation models, which we evaluate against measurements. CCS CONCEPTS• Computer systems organization → Embedded systems; • Networks → Mobile networks.

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