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In this paper, different energy harvesting solutions for an autonomous miniature wireless sensing node are invista-gated. The communication part is realized with Low Power Wide Area Network (LP-WAN) LoRa technology that combine low-power and long range capabilities. Solar, Thermal and Piezo harvesting techniques are compared for autonomous sensing application.
To improve the performances of wireless sensor network (WSN) and its lifetime, the management of power consumption and the energy harvesting is crucial. In this paper, we propose an energy-harvested management mechanism (EH2M) for WSN, in order to minimize the duty-cycle on the basis of the present amount remaining energy. With EH2M, each sensor node can adjust its duty-cycle dynamically by computing...
In this paper, we present a new beacon recognition method for wireless sensor devices to access beacon-enabled WSN with low-power consumption. At first, we explain necessity of the low-power beacon recognition in the beacon-enabled wireless sensor networks. By realigning network resources, we catch that beacons are in the same position in each BI (beacon interval). Then, we propose how to switch operation...
This paper presents a hybrid-powered wireless sensor node using enhanced triboelectric nanogenerator (TENG) as both energy harvester and air-flow sensor and two 11 cm2 solar panels as extra power supply. A low budget commercial RF microcontroller is included for data conversion, signal processing and wireless transmission. The method of flow-rate detection depends on the vibration frequency of the...
In cluster-based energy-harvesting wireless sensor networks (EH-WSNs), clustering schemes have been studied for prolonging the network lifetime. The EHGAF has been proposed to achieve this objective, however, this conventional scheme results in non-uniform residual power between cluster heads (CHs), leading to short network lifetime, under the conditions with geographical non-uniform energy-harvesting...
This paper proposes a position-based routing scheme called Speed Up-Greedy Perimeter Stateless Routing Protocol for Wireless Sensor Networks (SU-GPSR). The speed up mode works together with greedy mode to provide a solution for data transmission in WSN. Unlike other variants of greedy perimeter stateless routing protocols, SU-GPSR not only embraces both still nodes and mobile nodes in one unified...
Energy Neutral Operation (ENO) has created the ability to continuously operate wireless sensor networks in areas such as environmental monitoring, hazard detection and industrial IoT applications. Current ENO approaches utilise techniques such as sample rate control, adaptive duty cycling and data reduction methods to balance energy generation, storage and consumption. However, the state of the art...
With the rapid development of Smart Grid, urban distribution networks have greatly expanded, in which power cables have been widely used in many countries. Monitoring of power cables will increase reliability of supply and the integrity of the transmission system. Wireless Sensors Nodes (WSNs) are independent sensors which can sense and monitor certain parameters including temperature, humidity, load...
Rectenna design for wireless RF energy scavenging is showcased in this paper. The rectenna design is divided into a microstrip planar antenna and an energy harvesting rectifier circuit. In the designed rectenna, antenna as well as rectifier resonates at 5.8 GHz. Advanced Design System (ADS) software was used as the simulation tool of microstrip planar antenna. The total size of the antenna is 18 ×...
Despite of continuous evolution of Wireless Sensor Networks, Energy exhaustion issue of wireless sensors is still remained. Thus, it is difficult to guarantee the self-sustainability of each sensor. Researchers in areas of energy conservation and energy harvesting have been consecutively developing new methods to increase the lifetime of a sensor. One of the methods is the Adaptive Sampling Algorithm...
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...
Energy problem is an important consideration in wireless sensor network. It is because sensor nodes in network use limited battery source which leads to limited lifetime. Also, sensor nodes in WSNs use multi-hop communication, so nodes near sink node transmit more data compared with farther nodes. These phenomenon results in energy hole problem which is critical to prolong lifetime of sensor network...
In this paper, we present a simple, yet efficient, Multi-Band RF energy Harvesting (MB-RFH) circuit. The circuit overall dimension is (115 × 52 × 1.6) mm3 including the storage capacitor and operates over quad-band RF frequencies. Unlike the related works which use a separate antenna and a separate matching circuit per frequency band, we propose to use a single antenna and a single matching circuit...
Energy is a precious resource in Wireless Sensor Nodes. With each transmission/reception and computation, energy is being expended and batteries get drained which can result in premature death of nodes and thereby reduced life span of WSN. The problem gets critical when the network is implemented under harsh environmental conditions like forests. Thus energy harvesting from environment becomes an...
The energy harvesting is the branch of the energy management, where the energy is being originated from the multiple sources. The energy harvesting is usually done from the sources such as wind mills, solar cells, piezoelectric and other similar power generation modules. In this paper, the energy harvesting methods are discussed for the wireless sensor networks. The wireless sensor networks are the...
This paper presents an indoor photovoltaic energy harvesting system which utilizes a 500mV single unit solar cell operating under room lighting illumination. This voltage supplies the input stage of the whole system including the bootstrapped ring oscillator and self-Vth-cancellation differential rectifier, whose output frequency is 27MHz, which in turn generates the supply for the low-dropout regulator...
This paper deals with the state of art in the field of energy harvesting systems. The paper mainly aims to the novel field of energy harvesting systems utilized in aerospace environment. Their most prospective applications in zero-power sensors and backup power sources for low-power systems are outlined and discussed. Vibration and thermoelectric energy harvesters are presented as a most suitable...
In this paper a photovoltaic energy harvesting system for wireless body area network applications is presented. The device is able to store the energy produced by the harvester in a storage element, acquire data from a generic body sensor and transmit the information wirelessly to an external receiver. The system is supplied by a thin-film photovoltaic energy harvester, which is capable of ensuring...
This paper presents a storage system design based on energy harvesting to achieve battery-less for Wireless Sensor Network (WSN) application. The storage system is part of the Wireless Sensor Energy Harvesting to store and amplify the energy harvested from the surroundings. The proposed method must be consumes very little power and suitable for ambient environmental sources such as vibration, wind...
A Solar-Powered Sensor Module (SPSM) that uses low-cost capacitors as energy buffers to power wireless sensor motes was investigated. Compared to batteries or super capacitors, SPSM is particularly suitable for light-weight tasks since it buffers limited energy and powers up periodically. With our method, the energy charging time can be shortened to about 100 ms for a maximum power point tracking...
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