SENSYS

We consider a new perspective on intermittence anomalies arising in intermittently-computing mixed-volatile systems. Existing forward progress techniques avoid such anomalies by enforcing a computation that corresponds to a continuous one, introducing a ...

We present the experimental evaluation of different security mechanisms applied to persistent state in intermittent computing. Whenever executions become intermittent because of energy scarcity, systems employ persistent state on non-volatile memories (...

Software support for intermittent devices has emerged as a key area of research in resource-constrained computing. Work in this area aims to ease application development by providing support for making forward progress in the face of frequent power ...

This paper defines architectural and operational principles for simple and reliable energy harvesting devices that can be used in service of high-level applications. For many maintenance and monitoring tasks, we propose that it is more valuable to have ...

This paper presents a battery-free smart camera that combines tiny machine learning, long-range communication, power management, and energy harvesting. The smart sensor node has been implemented and evaluated in the field, showing both battery-less ...

Batteryless devices operate by storing the harvested energy in capacitors. In single capacitor-based systems, the whole energy stored in the system is available to all peripherals, and power-hungry hardware components might drain the energy in the ...

Battery-less wireless sensors powered directly by miniaturized energy harvesters can be appealing only if communication between nodes is realized without wasting energy. In devices that implement intermittent computing, efficient communications remain ...

Modern Internet-of-Things (IoT) devices and sensor systems exhibit extreme dynamic current consumption profile, since latest microprocessors and electronics support ultra-low currents in the sleep phase, of only a few nA, while they expend several mA in ...

Energy harvesting wireless sensor nodes are sensitive to spatial and temporal fluctuations in energy availability. This issue is especially prevalent in batteryless systems, where devices are directly connected to power sources with little or no ...

Internet of Things (IoT) systems can rely on energy harvesting to extend battery lifetimes or even to render batteries obsolete. Such systems employ an energy scheduler to optimize their behavior and thus performance by adapting the node operation. ...

Ambient light energy harvesting is a cost-effective and mature approach for supplying low-power sensor systems with power in many indoor applications. Although the spectral information of a light source is known to influence the efficiency and output ...

Intermittent computing (IC) promises long lifetimes for IoT edge devices. Running directly from energy harvesting sources enables these devices to be deployed and left, potentially for decades. As the field of IC progresses from proof-of-concept to ...

Wearable devices traditionally rely on batteries as the primary source of energy for operation. Batteries are often rigid, bulky, heavy, and require constant recharging, consequently hampering the development of novel device applications. This paper ...

Intermittently-powered energy-harvesting systems offer the potential to form a long-lasting and environmentally friendly Internet of Things. Atomic operations in such systems refer to those that should be executed without interruption, e.g. wireless ...

Accurate timekeeping is a critical challenge for many intermittently-powered computing devices. Current approaches to keeping time across power failures provide either limited resolution or require additional hardware. We would like to introduce one ...