System Based on Artificial Intelligence Edge Computing for Detecting Bedside Falls and Sleep Posture

Bor Shyh Lin, Chih Wei Peng, I. Jung Lee, Hung Kai Hsu, Bor Shing Lin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Bedside falls and pressure ulcers are crucial issues in geriatric care. Although many bedside monitoring systems have been proposed, they are limited by the computational complexity of their algorithms. Moreover, most of the data collected by the sensors of these systems must be transmitted to a back-end server for calculation. With an increase in the demand for the Internet of Things, problems such as higher cost of bandwidth and overload of server computing are faced when using the aforementioned systems. To reduce the server workload, certain computing tasks must be offloaded from cloud servers to edge computing platforms. In this study, a bedside monitoring system based on neuromorphic computing hardware was developed to detect bedside falls and sleeping posture. The artificial intelligence neural network executed on the back-end server was simplified and used on an edge computing platform. An integer 8-bit-precision neural network model was deployed on the edge computing platform to process the thermal image captured by the thermopile array sensing element to conduct sleep posture classification and bed position detection. The bounding box of the bed was then converted into the features for posture classification correction to correct the posture. In an experimental evaluation, the accuracy rate, inferencing speed, and power consumption of the developed system were 94.56%, 5.28 frames per second, and 1.5 W, respectively. All the calculations of the developed system are conducted on an edge computing platform, and the developed system only transmits fall events to the back-end server through Wi-Fi and protects user privacy.

Original languageEnglish
Pages (from-to)3549-3558
Number of pages10
JournalIEEE Journal of Biomedical and Health Informatics
Volume27
Issue number7
DOIs
Publication statusPublished - Jul 1 2023

Keywords

  • Bedside fall
  • deep learning
  • edge computing
  • neuromorphic computing hardware
  • sleep posture recognition

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Informatics
  • Electrical and Electronic Engineering
  • Health Information Management

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