Sensor Node Network for Remote Moisture Measurement in Timber Based on Bluetooth Low Energy and Web-Based Monitoring System.

Mohamed Saban,Leandro Daniel Medus,Silvia Casans,Alfredo Rosado,Otman Aghzout

doi:10.3390/s21020491

Mohamed Saban, Leandro Daniel Medus + Show 3 more

Open Access

https://doi.org/10.3390/s21020491

Copy DOI

Abstract

This paper proposes an IoT system based on wireless BLE connectivity to monitor the moisture content of wood, using a compact and low-cost moisture device that relies on a resistance measurement method valid for an ultra-wide range of resistance values. This device is digitally controlled with a BLE-incorporated micro-controller characterized by its small size and low power consumption, providing long-life battery. The proposed system consists of two main parts: first, the BLE moisture device including the moisture content measurement and wireless capability (BLE); second, the cloud-based monitoring platform, providing remote visualization and control for all the sensor nodes of the network. The complete infrastructure shows how multiple nodes can read and transmit moisture content of timber in buildings using small and unattended devices, with data saved in a central database and monitored by multiple commercial devices such as PC, smartphone, tablet, etc. The proposed system is innovative, scalable and low cost, and it can be deployed in wooden buildings and the wood industry, providing a practical solution that will help to avoid rot and other damaging effects caused by the moisture content.

Highlights

The internet of things (IoT) allows the connection of devices to establish a strong infrastructure to control and monitor real-world physical systems [1,2]
An IoT system consists of many devices connected to a gateway or multiple gateways, as an intermediate between the devices and the server equipped with an IoT platform [3]
Many works implement the IoT as a solution responding to several problems in the different fields such as smart agriculture [4], healthcare services [5], fire detection [6], water monitoring [7], etc

Summary

Introduction

The internet of things (IoT) allows the connection of devices to establish a strong infrastructure to control and monitor real-world physical systems [1,2]. An IoT system consists of many devices connected to a gateway or multiple gateways, as an intermediate between the devices and the server equipped with an IoT platform [3]. IoT offers smart devices to automate homes, and it is essential to business: IoT affords a real-time control of their systems and allows companies to automate processes and reduce labor costs so it can help saving money and time, generating more revenue. Many works implement the IoT as a solution responding to several problems in the different fields such as smart agriculture [4], healthcare services [5], fire detection [6], water monitoring [7], etc.

Objectives

Results

Conclusion