Stateless IoT

Abstract

Energy consumption is a relevant matter in the design of IoT applications. Edge units—sensors and actuators—save energy by operating intermittently. When idle, they suspend their operation, losing the content of the onboard memory. Their internal state, needed to resume their work, is recorded on external storage: in the end, their internal operation is stateless. The backend infrastructure does not follow the same design principle: concentrators, routers, and servers are always-on devices that frustrate the energy-saving operation of edge devices. In this paper, we show how serverless functions, asynchronously invoked by the stateless edge devices, are an energy-saving option. We introduce a basic model for system operation and energy footprint evaluation. To demonstrate its soundness, we study a simple use case, from the design to a prototype.

Application of Regression Analysis to Achieve a Smart Monitoring System for Aquaculture

“…For instance, the large part of the system can be shut down if there is no transformation data. Additionally, the entire system can be booted up if the transformation data are ready [19,20]. Therefore, we schematized an operation mode for the administrator which can set the remote control manually, including the maximum items stored in the repository, the refreshed APP cycle data and each parameter's flexible range, and filter repetitive information to avoid data duplication, as seen in Figure 10.…”