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Environmental temperature is essential for security monitoring and controlled areas, such as chemicals factory and Inflammable goods vehicle, in which WSN is the most appropriate choice for intelligent monitoring purpose. In this work, we design a piezoelectric energy harvester to collect low-acceleration (<0.5 g) and low-frequency (<50 Hz) vibration energy for powering wireless sensor network...
Wireless Sensor Networks (WSNs) technology is considered an excellent compromise for supporting monitoring applications on old trains operated by railway systems around the world. Although WSNs are optimized for energy management with regards to sensor nodes and communication protocols, their lifetimes remain limited by battery capacity. Deployment of new sensors or replacement of empty batteries...
In this paper, the results of a combined numerical-experimental analysis on a system, part of a wireless sensor network, composed by a resonant electromagnetic energy harvester, a suitable power electronic interface and a sensor node are presented and discussed. Such a system is to be used onboard for real-time diagnostics and monitoring in railway vehicles for goods transportation.
Lifetime of wireless sensor nodes is a big challenge in bridge structural monitoring as these nodes may be deployed inside the bridges. In this situation, it is infeasible to replace batteries or harvest solar and wind energy. To prolong lifetime, vibration energy begins to be utilized to replenish energy for sensor nodes. In this study, a vibration energy harvester based on Micro Fiber Composite...
Selective forwarding attack is one of well-known denial-of-service (DoS) attacks, and designing its countermeasure is critical and challenging. Detecting a forwarding misbehavior in multi-hop networks is non-trivial because it is hard to filter from node failure or packet collision. This paper proposes a new countermeasure, called camouflage-based active detection, in a rapidly emerging energy harvesting...
Real-time diagnostic and monitoring on railway vehicles for goods transportation is considered. The results of a preliminary experimental activity aimed to model mechanical vibrations and wind speed for autonomous monitoring and diagnostic wireless sensor network fed by means of energy harvesters are reported and commented.
This paper reviews energy harvesting technologies for structural health monitoring applications. Structural health monitoring (SHM) is the process of damage detection in machinery, aerospace, and civil structures. There is a great deal of interest across a broad section of industries in obtaining technology that can be used to monitor the health of machinery and structures. In particular, the need...
This paper presents a view of the state of the art in the field of energy harvesting solutions focused on discrete to integrated solutions in the range of low-power generation, from a few microwatts to several nanowatts. A view of commercial solutions to the new trends in new self-powered smart sensors operating without the use of any kind of battery will be presented. A specific solution developed...
Recently, there has been a growing interest in using wireless sensor networks for monitoring water distribution infrastructure to help drinking water utilities to have better understanding of hydraulic and water quality statement of their underground assets. One of the challenges is limited power resources for operating the smart sensors and sensor networks. Current common used power supplies for...
A battery-less tire pressure monitoring system (TPMS) with piezoceramics mode energy harvesting is presented. A chip of power recovery circuit at piezoceramics mode is designed and implemented at Chartered 0.35 ??m high voltage CMOS process. Based on testing results, with the piezoceramics, the chip converts mechanical strain energy to DC power which provides stable voltage output around 3 V, and...
We present a design study highlighting our recent technological developments that will enable the implementation of autonomous wireless sensor networks for home healthcare monitoring systems. We outline the power requirements for a commercially available implantable glucose sensor which transmits measurements to an external wireless sensor node embedded in the home. A network of these sensor nodes...
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...
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