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An autonomous Internet of Things (IoT) wireless sensor network (WSN) powered by a solar energy harvester with low power electronics is presented in this paper. The power supply is a critical challenge for IoT sensors as many of them normally have limited lifetime due to the battery with limited capacity used. The WSN system, sensor node electronics, and the energy harvesting techniques are all configured...
Wireless Sensor Networks are deployed in different fields of application to gather data on the monitored environment. The Wireless Body Sensor Network (WBSN) is a wireless sensor network designed to monitor a human body vital and environment parameters. The design and development of such WBSN systems for health monitoring have been motivated by costly healthcare and propelled by the development of...
The existence of temporary misbehaving nodes is a common phenomenon in a wireless sensor network. Recent research works consider their existence and analyze their detrimental effects over the network performance. Several approaches even try to detect and overcome temporary misbehaving nodes from the network. In this paper, we propose a technique called PreCoRe to predict the occurrence of dumb nodes...
Today, wireless technologies are being used in almost every area of our lives. Especially in the field of health, the use of wireless technologies is increasing every day. The most important advantage of using wireless communication in biomedical area is that health services can be provided outside health facilities. In addition to this, long and troublesome follow-up of the patient; The patient's...
This paper describes a smart system to monitor high temperature in industrial applications. The solution includes a semipassive microchip which allows logging data and wireless reading. Protection for the electronics against high temperature environment is provided by a vacuum packaging. Thermal isolation at 150°C and 800°C ambient temperature allows the system to work properly during 14 and 2 minutes...
We show a wireless system that controls the light intensity of a number of light bulbs from its temperature in real time. The PID control loop is feed from a LWIR camera thermal video stream and the feedback is used to control a solid-state relay using PWM modulation. Given its low-cost, such system can be applied to consumer-oriented industries, where costs and integration requirements are key.
The application of Wireless Power Transfer (WPT) systems is primarily limited by its energy transfer efficiency. For modern WPT that utilises Strongly Coupled Magnetic Resonances (SCMR), which transfers energy by using the mutual inductance between coils, a higher efficiency can be achieved compared with a conventional air-core transformer module. An SCMR normally works at a desired frequency which...
Smart Irrigation Decision Support (SIDS) system based on fuzzy logic using Wireless Sensor Network (WSN) is considered for precision water irrigation. WSN consists of limited-energy sensor nodes which are equipped with sensing, wireless communication and processing capabilities. SIDS aims to measure the agricultural parameters including the soil temperature and soil moisture using the sensor nodes...
This paper presents the development of an energy efficient environmental sensor that sends measurement data to a cloud platform using HTTP (Hypertext Transfer Protocol) requests. The device is based on a programmable system-on-chip (PSoC), and is equipped with a temperature and relative humidity sensor for taking measurements and with a WLAN (wireless local area network) module for sending data to...
One-class support vector machines (OCSVM) have been recently applied to detect anomalies in wireless sensor networks (WSNs). Typically, OCSVM is kernelized by radial bais functions (RBF, or Gausian kernel) whereas selecting Gaussian kernel hyperparameter is based upon availability of anomalies, which is rarely applicable in practice. This article investigates the application of OCSVM to detect anomalies...
This study builds an automatic monitoring system for the fish pond culture environment. The purpose of this study is to reduce the financial losses in fish culture stock resulting from natural disasters, and facilitate better control of the fish pond environment. The physical water quality signals are therefore extracted using temperature, dissolved oxygen and pH sensing modules. The water heater,...
Advances in the information and communication technologies have led to the emergence of Internet of Thing (IoT). IoT allows many physical devices to capture transmit data, through the internet, providing more data interoperability methods. Nowadays IoT plays an important role not only in communication, but also in monitoring, recording, storage and display. Hence the latest trend in Healthcare communication...
Wireless Body Sensor Networks (WBSNs) are a low-cost solution allowing remote patient monitoring and continuous health assessment, thus reducing healthcare expenditure. In such networks, sensor nodes periodically collect vital signs and send them to the coordinator for fusion. However, sensor nodes have limited energy and processing resources and transmission is the most power-hungry task. In this...
A wireless monitoring system, which operates autonomously for up to several years, is discussed. Measurement techniques for temperature and humidity, acceleration and strain are reviewed. Data transmission is carried out by RFID and Bluetooth radio interfaces. The operation algorithm of the wireless monitoring system is reported.
The paper presents the Wireless Sensor Network (WSN) Simulator and its usage for designing the forest fire early detection system. The WSN Simulator is developed based on proposed Sensor model and WSN model. The WSN Simulator address important design issues as: coverage of the area under surveillance in relation to initial sensor deployment, number of sensors needed for targeted deployment, and coverage...
This paper deals with a cost effective wireless EV battery charger which integrates the simplest quasi-resonant soft switching pulse modulated inverter with a newly developed SiC-MOSFET. In the first place, the operating principle of a wireless EV charger using a class-E single-ended inverter which is cost-effective for affordable price and simple is described. This type of wireless resonant EV charger...
Internet-of-Things (IoT) is revolutionizing the healthcare by providing high-quality services, lowering the costs, and increasing the efficiency of management by allowing the physical objects to integrate with computer systems to collect the sensed data and process as per the need. Healthcare industries will also get benefited due to reduced investments and management, automated services, better disease...
This research would be the early stage in saving and managing energy, especially electrical energy in a miniature. The research has been done in the assembly of components, namely temperature, humidity, lighting and electric active power sensors, where they were equipped by 4–20 mA transmitters. These transmitters entered to the four channel analog module of programmable logic controller (PLC). From...
The online temperature measurement technology is analyzed and verified in this paper based on power supplied by the inductive current and wireless communication technique combined with the structure and principle of disconnector, solving problems in the online temperature measure system such as wireless data transmission, sensor operating supply and equipment high reliability in an environment of...
A significant cause of low production in agriculture is the absence of water in soil. The measurement of moisture level of plants is a basic parameter and in order to calculate it, we can quantify the difference between the leaf temperature and the air temperature. In this work, we introduce a novel leaf temperature sensor for agricultural monitoring. The sensor communicates remotely with a reader...
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