Abstract
This paper presents the implementation of a wearable wireless sensor network aimed at monitoring harmful gases in industrial environments. The proposed solution is based on a customized wearable sensor node using a low-power low-rate wireless personal area network (LR-WPAN) communications protocol, which as a first approach measures CO2 concentration, and employs different low power strategies for appropriate energy handling which is essential to achieving long battery life. These wearables nodes are connected to a deployed static network and a web-based application allows data storage, remote control and monitoring of the complete network. Therefore, a complete and versatile remote web application with a locally implemented decision-making system is accomplished, which allows early detection of hazardous situations for exposed workers.
Highlights
The growing advances in the last two decades in low-power wireless communications, the constant downsizing in electronic devices and the progressive increase of computational power in low-cost microcontrollers have fostered the emergence of cyber-physical systems (CPSs)
Wearable wireless sensor network (W-wireless sensor networks (WSN)) systems are a particular CPS case where sensors are deployed on the user clothing and/or body to monitor physiological parameters, environmental conditions, or both
This paper presents a complete W-WSN system based on a custom wearable sensor node using a low-power low-rate wireless personal area network LR-WPAN communications protocol, intended for monitoring ambient parameters in potentially harsh environments where carbon dioxide (CO2 ) gas leaks may occur
Summary
The growing advances in the last two decades in low-power wireless communications, the constant downsizing in electronic devices and the progressive increase of computational power in low-cost microcontrollers have fostered the emergence of cyber-physical systems (CPSs). In industrial environments the usual approach lies in deploying static wireless sensor nodes in the area of interest In this way, ambient monitoring systems based on wireless sensor networks (WSN) can be found in different scenarios such as refrigerated chambers [9], chemical production plants [10], or in modern steel mills to detect carbon monoxide [11]. This paper presents a complete W-WSN system based on a custom wearable sensor node using a low-power low-rate wireless personal area network LR-WPAN communications protocol, intended for monitoring ambient parameters in potentially harsh environments where carbon dioxide (CO2 ) gas leaks may occur.
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