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Digital lifestyle with always-on connection to internet as well as the emergence of Internet of Things (IoT) throughout the world calls for reliable, concurrently maintainable data center and telecommunications systems. Thus, this need had pushed the limit of electrical and mechanical system, in particular power and cooling systems to provide reliable, economical and maintainable services. This requirements...
Low Power Wide Area (LPWA) networks present a new communication paradigm in wireless sensor networks. Their ability to convey information over larger geographical areas, while still enabling low-power consumption and longer lifetime, gives them a special place in realization of Internet of Things (IoT) systems and applications. Compared to traditional cellular networks and other short range technologies...
A large number of sensor nodes are deployed to remote locations and left unattended for a long time in wireless sensor network applications. When a battery-powered sensor node depletes its energy, it is assumed as “dead” and recharging or replacing the battery is not possible in most of the applications. Lifetime of the wireless sensor network depends on the efficient use of available restricted energy...
Wireless Sensor Networks (WSNs) involve top potential technologies that will dramatically change the way of human living and working. Many scientific, industrial and environmental applications require real time information related to physical events like pressure, temperature or humidity. In the past the only way to transfer the sensed data to control center was through cumbersome, costly wires. But...
A Linear Wireless Sensors Network (LSN) is a sensor network model used for monitoring linear structures such as oil, gas, and water pipelines. This type of network depends on the information sent from one node to another in a sequence. As a result, a failure or attack that occurs at any node may isolate some nodes from the network, which will affect the reliability of the entire network. In this situation,...
Battery energy storage systems (BESS) are becoming a viable means for large commercial and industrial (C&I) customers to realize reliability improvements and service charge reductions. This paper investigates the operation and planning of customer-side-of-the-meter BESS that are simultaneously used for both purposes. For scheduling applications, a new multi-objective economic dispatch algorithm...
An accurate assessment of the temperature distribution on the surface of the battery can be instrumental in prediction of the health and remaining lifetime in the battery/battery storage unit. Close monitoring of operational conditions and health can lead to significant saving in the overall cost and reliability of the targeted application. In this paper a new method for estimation of an effective...
The functionality and the performance of smart environment applications can be hampered by faults. Fault tolerance solutions aim to achieve graceful performance degradation in the presence of faults, ideally without leading to application failures. This is a reactive approach and, by itself, gives little flexibility and time for preventing potential failures. We propose a proactive fault-prevention...
The use of sensor networks has increased rapidly over the last years. Due to their low resources, sensors come along with new issues regarding network security and energy consumption. Focusing on the network availability, previous studies proposed to protect the network against denial of service attacks with the use of traffic monitoring agents on some nodes. But if the control nodes go down or get...
A method is proposed for monitoring sealed battery condition, especially gas formation between electrode layers by detecting the vibrational characteristics on audio frequency range or low ultrasonic frequency range, measured using an actuator and one or more vibration sensors. The method can use driving point response, transmission response, or both to determine the battery status. Experimental results...
Solar-powered lantern system need to be long-term stable operation and lower product cost for the diversified demands of loads and the diversified output of solar-powered lantern system varying with seasons. Although a lot of solar-powered lantern systems have been designed, the optimal design solutions with lower product costs and perfect effects still have many problems. This article offers an advanced...
In this era of technological revolution, automotive industry witnessed tremendous progress with the environment friendly Electric Vehicles (EVs). To account for the consumer cost, the electric vehicles should offer maximum mileage in one charge by monitoring and utilizing maximum energy from the battery pack without significantly affecting the battery life. A reliable monitoring system reduces user's...
The paper describes the various features enhancing the feature of power efficiency in the wireless sensor node for monitoring the industrial processes. The sensor node is deployed to monitor the process parameters in a remote location. The industrial processes are unique in their requirement of highly reliable operation in harsh environments. The robust, high efficient and reliable sensor node is...
Valve Regulated Lead Acid (VRLA) batteries have been used as backup powers supply since 1994 in almost every sector of the Indian Telecom. Such an excessive usage of VRLA batteries necessitates that a reliable telecommunications power supply is maintained. Since the Valve Regulated Lead-Acid battery is effectively sealed in that it is not possible to examine the battery internally. Therefore any test...
As the development requirements of China's low-carbon economy and Strong & Smart Grid, energy storage systems are increasingly being wide used. Together with installation of energy storage device, configuration principle and functional specifications of energy storage monitoring system should also be defined. Especially, since energy storage systems are commonly used in the distribution network,...
Blade electric vehicles (BEVs) use batteries, by which the performance and security of the BEVs is determined, as its only source of energy. However, there are so many cells, connected in series-parallel combination to match the load requirement, needed to be monitored and controlled that making it a great challenge to manage all the cells timely and efficiently. Thus, a modularized and distributed...
Large scale wireless sensor networks, consisting of thousands of nodes spread over a large geographical area, are being planned for a number of monitoring and control applications. The individual nodes in such networks would be severely limited in their capabilities - they will have limited memory and CPU resources and would typically run on batteries. A suitable routing protocol for large wireless...
Underwater Wireless Sensor Networks (UWSNs) provide a solution for monitoring those unstable environments which is considered frightening for human presence. These networks are mostly formed by acoustic sensor nodes and surface sinks called buoys that are connected to any onshore control centre. The reliable delivery of sensed data to the surface sink is a challenging task as compared to forwarding...
Blockages in sewers are major causes of both sewer flooding and pollution. Water companies which fail to tackle this problem face hefty fines and high operational costs if they unsuccessful to provide a practical solution to prevent flooding. As a result, the detection of sewer condition is routinely required to inform on the best course of action to eliminate this critical problem. This paper presents...
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