IOT Presentation at the SICE International Symposium on Control Systems in Japan

Chris Porter in Japan

Wednesday March 13, 2019

Chris Porter, a software engineer at VPI Technology Group, recently traveled to Japan to present a publication based on his thesis entitled “Control and Optimization of Energy Efficiency in Small-Footprint Embedded Systems: A Coupled Hybrid Systems Model” at Kumamoto University for the 2019 SICE International Symposium on Control Systems. The presentation covered content from his thesis completed at Northern Arizona University. Chris and his team came up with a way to optimize energy efficiency in real-time by providing a set of hardware configurations for hardware abstraction layers (HAL) and other modules, then applying a dynamic programming algorithm for optimization. From Chris and his team’s efforts, Northern Arizona University was granted a patent: System and Method for Optimizing Energy Efficiency in Programmable Devices, Patent No: US 9,459,685.

The abstract for Chris’ thesis is as follows.

‘The IoT and its related applications will require engineering of edge devices that can autonomously optimize their non-functional performance. We present a hierarchical model of small-footprint embedded systems that (1) cleanly separates and shows the interactions between their physical and computational aspects and (2) enables their control and optimization. This model exposes power use, energy use, and temporal responsiveness as functions of the hardware configuration of the processor and surrounding peripherals, including sleep mode, voltage/frequency scaling, and clock/power gating. The foundation layer consists of a coupled hybrid systems model for energy measurement and system control; this layer underpins a multi-stage graph model of execution that admits optimization using dynamic programming. In this paper, we demonstrate on-line achievement of energy subsistence, wherein the system uses the minimum energy possible given all controllable hardware resources. We describe a software/hardware implementation architecture, and illustrate the approach using an experimental networked embedded system platform.’

Here at VPI, we are honored and grateful to have individuals such as Chris on our team, who make the continued effort to improve and grow in the engineering and technology fields.