Development of a self-powered wireless sensor node to measure the water flowrate by using a turbine flowmeter

2021 ◽  
Vol 13 ◽  
pp. 100327
Author(s):  
Tomomi Uchiyama ◽  
Kotaro Takamure ◽  
Yuta Okuno ◽  
Eiichi Sato
2016 ◽  
Vol 7 (7) ◽  
pp. 1601705 ◽  
Author(s):  
Abdelsalam Ahmed ◽  
Zia Saadatnia ◽  
Islam Hassan ◽  
Yunlong Zi ◽  
Yi Xi ◽  
...  

2016 ◽  
Vol 6 (13) ◽  
Author(s):  
Geon-Tae Hwang ◽  
Venkateswarlu Annapureddy ◽  
Jae Hyun Han ◽  
Daniel J. Joe ◽  
Changyeon Baek ◽  
...  

2016 ◽  
Vol 6 (13) ◽  
pp. 1600237 ◽  
Author(s):  
Geon-Tae Hwang ◽  
Venkateswarlu Annapureddy ◽  
Jae Hyun Han ◽  
Daniel J. Joe ◽  
Changyeon Baek ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 674 ◽  
Author(s):  
Jong-Pil Im ◽  
Jeong Kim ◽  
Jae Lee ◽  
Ji Woo ◽  
Sol Im ◽  
...  

In this paper, we present the results of a preliminary study on the self-powered autonomous wireless sensor node by using thermoelectric energy generator based on Silicon (Si) thermoelectric legs, energy management integrated circuit (EMIC), Radio Frequency (RF) module with a temperature and humidity sensor, etc. A novel thermoelectric module structure is designed as an energy generator module, which consists of 127 pairs of Silicon legs and this module is fabricated and tested to demonstrate the feasibility of generating electrical power under the temperature gradient of 70K. EMIC has three key features besides high efficiency, which are maximum power point tracking (MPPT), cold start, and complete self-power operation. EMIC achieved a cold start voltage of 200 mV, peak efficiency of 78.7%, MPPT efficiency 99.4%, and an output power of 34 mW through only the Thermoelectric Generator (TEG) source. To assess the capability of the device as a small scale power source for internet of things (IoT) service, we also tested energy conversion and storage experiments. Finally, the proposed sensor node system which can transmit and monitor the information from the temperature and humidity sensor through the RF module in real time demonstrates the feasibility for variable applications.


A novel self-powered wireless sensor node is proposed and prototyped to overcome the ambient energy lacking in the dual energy harvesting sources by including a secondary energy storage. Moreover, an energy-aware Event-Priority-Driven Dissemination (EPDD) management algorithm has been developed and implemented to control the WSN integrity and reducing the sensor node power consumption as well. EPDD was developed to manage the sensor node operation and to make the sink station able to detect a missing wireless node within the network, which will guarantee the nodes integrity detection. The evaluations revealed that the EPDD shows a good performance in reducing the node power consumption compared to the data push algorithm, whereby, EPDD node was operating 4 hours more than the data push node on the same power source. Regarding the WSN integrity, the EPDD algorithm outpaced the event trigger algorithm, whereby, the EPDD was easily able to detect a node down within the WSN at the contrary of the event trigger.


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Xihai Zhang ◽  
Junlong Fang ◽  
Fanfeng Meng ◽  
Xiaoli Wei

Wireless sensor networks (WSNs) have been expected to improve the capability of capturing mechanical vibration dynamic behaviors and evaluating the current health status of equipment. While the expectation for mechanical vibration monitoring using WSNs has been high, one of the key limitations is the limited lifetime of batteries for sensor node. The energy harvesting technologies have been recently proposed. One of them shares the same main idea, that is, energy harvesting from ambient vibration can be converted into electric power. Employing the vibration energy harvesting, a novel self-powered wireless sensor node has been developed to measure mechanical vibration in this paper. The overall architecture of node is proposed. The wireless sensor node is described into four main components: the energy harvesting unit, the microprocessor unit, the radio transceiver unit, and accelerometer. Moreover, the software used to control the operation of wireless node is also suggested. At last, in order to achieve continuous self-powered for nodes, two operation modes including the charging mode and discharging mode are proposed. This design can effectively solve the problem of continuous supply power of sensor node for mechanical vibration monitoring.


2012 ◽  
Author(s):  
Valery F. Godinez-Azcuaga ◽  
Justin Farmer ◽  
Paul H. Ziehl ◽  
Victor Giurgiutiu ◽  
Antonio Nanni ◽  
...  

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