Sensors, Vol. 24, Pages 2782: Performance Assessment for the Validation of Wireless Communication Engines in an Innovative Wearable Monitoring Platform

Sensors, Vol. 24, Pages 2782: Performance Assessment for the Validation of Wireless Communication Engines in an Innovative Wearable Monitoring Platform Sensors doi: 10.3390/s24092782 Authors: Alessio Serrani Andrea Aliverti In today’s health-monitoring applications, there is a growing demand for wireless and wearable acquisition platforms capable of simultaneously gathering multiple bio-signals from multiple body areas. These systems require well-structured software architectures, both to keep different wireless sensing nodes synchronized each other and to flush collected data towards an external gateway. This paper presents a quantitative analysis aimed at validating both the wireless synchronization task (implemented with a custom protocol) and the data transmission task (implemented with the BLE protocol) in a prototype wearable monitoring platform. We evaluated seven frequencies for exchanging synchronization packets (10 Hz, 20 Hz, 30 Hz, 40 Hz, 50 Hz, 60 Hz, 70 Hz) as well as two different BLE configurations (with and without the implementation of a dynamic adaptation of the BLE Connection Interval parameter). Additionally, we tested BLE data transmission performance in five different use case scenarios. As a result, we achieved the optimal performance in the synchronization task (1.18 ticks as median synchronization delay with a Min-Max range of 1.60 ticks and an Interquartile range (IQR) of 0.42 ticks) when exploiting a synchronization frequency...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research