The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper describes the research for the design and implementation of a flexible, scalable and cost-effective medical system based on wireless sensors for remote monitoring of some vital physiological parameters. The proposed medical system has been designed to be integrated into a complex electronic system, based on assistive technologies, for assisting in the communication between the patients...
Microwave acoustic devices have long been shown to provide sensitive platforms for physical and gas sensors. Piezoelectric substrates introduced over the past two decades, such as the langasite (LGS) family of crystals, gallium orthophosphate, and aluminum nitride have enabled the exploration of microwave acoustics sensing at temperatures above 500°C. However the ability of the substrate to withstand...
Considering the fact that specialized learning processes became an indispensable component in anyone's life regardless of age or domain, we realized that students may have access to equipments that can be really embedded in industrial environment. For this reason educational materials are not used only in academicals spaces but also in companies or others institutions. WiTag system is a small system...
This paper reviews current progress in the area of wireless microwave acoustic sensor technology, and discusses advances in wireless interrogation systems that can operate in harsh environments. The use of wireless, battery-free, low maintenance surface acoustic wave (SAW) sensors has been successfully demonstrated in applications including high temperature turbine engines and inflatable aerospace...
This paper reviews thermal comfort based control strategies for modern commercial buildings with heating, ventilating, and air-conditioning (HVAC) systems. In order to make HVAC systems more energy-efficient, better system operations and control algorithms for HVAC systems are demanded. Research conducted predominately within the last decade suggests that commercial building HVAC significantly influences...
This paper presents a low-power RFID-S-system for condition monitoring in high-speed motor spindles. In modern metal cutting machine tools the machining result strongly depends on the motor spindles accuracy. Latest developments on high-speed cutting (hsc) and high-performance cutting (hpc) are leading to substantial increasing temperatures and mechanical elongations of the machine parts, which are...
Temperature measurement and monitoring plays a very important role in cold chain of blood. This paper describes a Web-based real-time monitoring system on cold chain of blood. The objective is split into three different tasks. First, wireless sensors send sensing data to database server through two types of networks: 1) For outdoor network, wireless sensors on mobile devices send data through the...
The brief of the Rolls-Royce University Technology Centre in Control and Systems Engineering at the University of Sheffield's is to perform research and development of engine control and monitoring systems. Over recent years work has been investigating and developing the key components to provide a complete approach to remote asset monitoring, from local networks of wireless sensors gathering information...
Wireless sensors based on passive surface acoustic wave (SAW) technology serve to accurately determine physical quantities in harsh environments. In this paper, we present a meandered planar inverted-F antenna (PIFA) with a small ground plane designed to be associated with a SAW sensor to monitor the inner temperature of a car exhaust header. The SAW sensor, the design of the antenna, the association...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.