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This paper aims at presenting an experimented low power Internet of Things architecture, that could be integrated to underwater monitoring systems like Autonomous Underwater Vehicles for wireless underwater sensing. The proposed hardware architecture of the sensor nodes is based on an ultra-low-power Flash Micro-controller that takes measurements from water sensors, and synchronizes the network by...
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...
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...
Communication and data transfer demands are growing fast in last few decades. In order to obtain higher data transfer, it is necessary to determine proper antenna placement in a wireless system. In this paper, we research propagation in tropical environment and L-Band frequency by conducting distance and high variation measurement at frequency 1.8 GHz and 2.4 GHz. The received power level decreases...
Paper proposes a kind of multiple environmental parameters monitoring system for granary that is based on ZigBee network and takes ARM controller as core. With regard to hardware, monitoring circuits for temperature, humidity, CO2 concentration and grain water content are designed. With regard to control program, fuzzy intelligent algorithm is designed and transplanted to ARM controller. The test...
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.
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...
In this paper, a new kind of system1 which is based on freertos operating system for greenhouse to complete the work of real-time temperature data acquisition and data transmission is designed. Firstly, DS18B20, the digital temperature sensor, is used for measuring the temperature in greenhouse, and the wireless module nRF24L01 is applied to the system to complete the data transmission remotely, the...
In this paper, a novel hybrid time-frequency modulation scheme for the integration of chipless wireless identifications and sensors is presented. This approach combines the wide bandwidth of localizable time domain reflectometry RFID tags and the narrow-band characteristic of high-Q resonator-based transducers for the design of a transducer-integrated TDR-RFID tag where both identification and sensing...
E-textile is a developing technology joining the advantages of material science and information and communication technologies. In this work, we present the development and assessment of smart textile system containing sensing, processing and wireless communication capabilities. We demonstrate a wearable temperature sensing system based on resistance temperature detection approach utilizing graphene...
We have proposed a Beat Sensor concept as a persistent and energy-harvesting wireless sensing scheme. This paper describes a low-power enhanced Temperature Beat Sensor, which exhibits an operating current of 18 μΑ at 3 V, data accuracy within 0.04 °C at the size of a body less than 5 cm3. We propose an algorithm, that recovers data from common communication failures, resulting in longer communication...
In Japan, about 50 thousand heat stroke patients are emergency transported and die more than 0.1% (about 50–100) patients every year[1]. This study describes the development of the system that gives warning with consideration of high temperature and humidity so that operators at construction sites do not get heatstroke. This system does not only measure the temperature and the humidity near an office...
Condition monitoring (CM) of gearbox is a crucial activity due to its importance in power transmission for many industrial applications. Monitoring temperature is an effective mean to collect useful information about the healthy conditions of the gearbox. This study investigates the use of a novel wireless temperature node to monitor and diagnose different faults on a gearbox transmission system under...
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