Towards Real-Time Magnetic Dosimetry Simulations for Inductive Charging Systems

TL;DR

This paper demonstrates a GPU-accelerated method using AmgX library to perform real-time magnetic dosimetry simulations for wireless charging systems, enabling rapid human exposure assessment.

Contribution

It introduces a GPU-based solver with AmgX for fast solutions of the Poisson system in magnetic dosimetry, achieving near real-time performance.

Findings

Solution time less than 0.5 seconds on a Tesla V100 GPU

Supports human voxel models with 2 mm resolution

Enables real-time magnetic exposure assessment

Abstract

The exposure of a human by magneto-quasistatic fields from wireless charging systems is to be determined from magnetic field measurements in near real-time. This requires a fast linear equations solver for the discrete Poisson system of the Co-Simulation Scalar Potential Finite Difference (Co-Sim. SPFD) scheme. Here, the use of the AmgX library on NVIDIA GPUs is presented for this task. It enables solving the equation system resulting from an ICNIRP recommended human voxel model resolution of 2 mm in less than 0.5 seconds on a single NVIDIA Tesla V100 GPU.