scholarly journals Rede de Sensores Sem Fio para Monitoramento de Variáveis de Ambiente

2020 ◽  
Author(s):  
Lucas José da Cunha ◽  
Paulo Roberto Oliveira Valim
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Low Power ◽  
Long Range ◽  
Low Energy ◽  
Low Power Consumption ◽  
Low Energy Consumption

This research has the objective of implementing a sensors networkfor monitoring variable of environments using an IoT(Internet ofThings) technology focused on low energy consumption and longrange. The idea is to implement this network using LoRa technologyand LoRaWaN protocol. For a better utilization, it will be used andtested different LoRa parameters to communicate the nodes aimingshow the impacts of these parameters changes in long range, withconsistent data and low power consumption.

scholarly journals A Long-Distance Communication Architecture for Medical Devices Based on LoRaWAN Protocol

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 940
Author(s):  
Nicoleta Cristina Gaitan
Keyword(s):  
Energy Consumption ◽  
Long Range ◽  
Medical Devices ◽  
Low Energy ◽  
Area Network ◽  
Wide Area Network ◽  
Long Distance ◽  
Communication Architecture ◽  
Low Energy Consumption ◽  
Distance Communication

Recent market studies show that the market for remote monitoring devices of different medical parameters will grow exponentially. Globally, more than 4 million individuals will be monitored remotely from the perspective of different health parameters by 2023. Of particular importance is the way of remote transmission of the information acquired from the medical sensors. At this time, there are several methods such as Bluetooth, WI-FI, or other wireless communication interfaces. Recently, the communication based on LoRa (Long Range) technology has had an explosive development that allows the transmission of information over long distances with low energy consumption. The implementation of the IoT (Internet of Things) applications using LoRa devices based on open Long Range Wide-Area Network (LoRaWAN) protocol for long distances with low energy consumption can also be used in the medical field. Therefore, in this paper, we proposed and developed a long-distance communication architecture for medical devices based on the LoRaWAN protocol that allows data communications over a distance of more than 10 km.

scholarly journals Continuous Cycle of Water Desalination Utilizing Hydrogel as Draw Agent.

2021 ◽  
Author(s):  
Alexander Fayer
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Low Power ◽  
Reverse Osmosis ◽  
Fresh Water ◽  
Duty Cycle ◽  
Water Desalination ◽  
Low Power Consumption ◽  
Seawater Desalination ◽  
Specific System

This document discusses operation of desalination system permanently extracting water from hydrogel draw agent by specially selected wicks. Due to its peculiarity the system combines advantages of both forward and reverse osmosis approaches such as, low power consumption, passive process of a freshwater extraction, continuous duty cycle and scaling possibility. While in modern systems an energy consumption of seawater desalination reaches of about 3 kWh/m 3, including pre-filtering and ancillaries [1], the same parameter for the specific system expected to be as low as for local fresh water supplyi.e., 0.2 kWh/m 3

scholarly journals Low Power LoRa Transmission in Low Earth Orbiting Satellites

2021 ◽  
Author(s):  
Rifath Shaarook ◽  
Srimathy Kesan
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Long Range ◽  
Packet Loss ◽  
Doppler Shift ◽  
Low Power Consumption ◽  
Communication Industry ◽  
Preliminary Results ◽  
The World ◽  
Synchronous Orbit

In the recent past, a modulation technique called “LoRa” has become popular in the communication industry due to its long range capabilities with low power consumption, a few satellites have carried LoRa and worked successfully inspite of being skeptical about Doppler shift, packet loss, etc. This paper discusses the preliminary results of LoRa communications established from a recently launched cubesat. Satish Dhawan Satellite (SD Sat) is a 3U Cubesat built by Space kidz India, weighing 1.9 kg, it carried a radiation counter and magnetometer as its payload. It carried a LoRa transmitter which transmits beacon at 100 mW. It is also transmitting FSK RTTY and CW RTTY. The satellite was launched into sun-synchronous orbit at 510 × 498 km. Multiple ground stations around the world have confirmed the signal reception.

Acceleration Components in Heterogeneous Supercomputers

2011 ◽  
Vol 204-210 ◽  
pp. 765-768
Author(s):  
Xian Min Wei
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Low Power ◽  
Control Unit ◽  
General Purpose ◽  
Low Power Consumption ◽  
Computing Power ◽  
General Purpose Processor ◽  
Computing Performance ◽  
Good Expansion

General-purpose processors continue to improve computing performance, but its energy consumption has far exceeded the increase in the proportion of performance. Specifically designed for the special purpose processor in the case of relatively low power consumption, can provide better performance. The general-purpose processor as the main control unit, special purpose processors as accelerators consisting of heterogeneous supercomputers will become a trend in supercomputer development. This paper introduces and analyzes several heterogeneous supercomputers used to build the acceleration components.While accelerate parts based on such components have obvious calculation advantages (high computing power, low power consumption), but with less application and difficult programming bottlenecks still exist. After all, the application number is limited which using hundreds, thousands or even more parallel computing for good expansion performance, and the workload of migration, development and optimization remains high.

scholarly journals Low Power Consumption Mobile Ad Hoc Network System

1970 ◽  
Vol 5 (1) ◽  
pp. 9-14
Author(s):  
Hiroshi Ishii
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Low Power ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Data Driven ◽  
Low Power Consumption ◽  
Ultra Low Power ◽  
Mobile Ad Hoc

In order to solve the environmental crisis problem and to realize the sustainable environment, we need the efforts to reduce energy consumption. It is reported that the energy consumption by IT including communication will rapidly grow. Based on this situation, Japan Science and Technology Agency (JST) has begun the project of “Ultra low power consumption information technology” under the umbrella of the competitive research fund named “Core Research for Evolutional Science and Technology (CREST)”. We have applied to the open call for proposal and our proposal “Ultra low power Data Driven Networking System (ULPDDNS)” has been accepted as one of 2007-2012 frame projects by JST CREST. Our objective is to develop a data-driven networking system that can achieve reduction of power consumption to 1/100-1/1000 compared with the existing systems, especially in the situation just after a disaster happened. We believe the most applicable network to disaster situation is Mobile Ad hoc NETwork (MANET). This paper introduces the ULPDDNS research activities mainly from the viewpoint of network, i.e., MANET and shows three techniques to establish highly efficient and energy saving MANETswith reasonable performance: (1) GPS-aided target information discovery, (2) Load-aware broadcast-type contents delivery, and (3) Trust relationship list based key management.

scholarly journals Design and Development of IOT based Low Power Consumption in Employee Meeting Rooms

2020 ◽  
Author(s):  
Ammar Yasir Hamood Al Rawahi ◽  
Shaik Mazhar Hussain ◽  
Anilloy Frank
Keyword(s):  
Energy Consumption ◽  
Comparative Analysis ◽  
Power Consumption ◽  
Power System ◽  
Low Power ◽  
Low Power Consumption ◽  
Central Processor ◽  
Design And Development ◽  
Low Power System ◽  
Relay Device

In this paper, We design and implement IOT based low power system that can be used in employee meeting rooms. The design is based on number of employees entering and leaving the room and automates room AC, lights and room freshners using relay device. The system designed counts number of employees entering the room using IR device and updates the number using counter and automates electrical appliances of the room and when leaving automatically switches off the devices. The power consumed is updated using ESP 8266 in the cloud called thing speak where the data can be evaluated and analyzed per day and per month. The system has 20*4 LCD which displays the complete details of the employees and electrical appliances. The working of the system starts with the entering of an employee in the room, the buzzer beeps and LED turns on. Arduino Mega is used as a central processor that controls all the appliances. The code is written in C and simulation is done using Proteus ISIS. Finally, the implemented system shows the energy consumption per day and per month and a detailed comparative analysis is done with and without connecting the system which shows a better saving of energy in the employee room. The methodology adapted for our work is V-methodology.

scholarly journals An Internet of Things-Based Low-Power Integrated Beekeeping Safety and Conditions Monitoring System

Inventions ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 52 ◽  
Author(s):  
Sotirios Kontogiannis
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Low Power ◽  
System Architecture ◽  
Data Transmission ◽  
Low Energy ◽  
Facility Conditions ◽  
Holistic Management ◽  
Low Energy Consumption ◽  
And Control

This paper proposes a holistic management and control system for the apiculture industry (Integrated Beekeeping System of holistic Management and Control – IBSMC). This integrated beehive array system mainly focuses on the regulation of bees living conditions, targeting both minimizing bee swarm mortality and maximizing productivity. Within the proposed IBSMC system architecture, additional security functionalities are implemented for bee monitoring, low energy consumption and incidents response. As a complete unit, the proposed IBSMC system is both a hive conditions monitoring and safety system. It communicates with the outer world using low power RF data transmission and the LoRaWAN transceivers. This paper presents the proposed IBSMC architecture consisting of new beehive cells embedded with functionalities for integrated conditions regulation and security provisions, as well as the communication protocols used for facility-conditions management, incidents’ acquisition and incidents’ response.

Synaptic Transistors with Human Brain-Like fJ Energy Consumption via Double Oxide Semiconductors Engineering for Neuromorphic Electronics

2021 ◽  
Author(s):  
Seong-In Cho ◽  
Jae Bum Jeon ◽  
Joo Hyung Kim ◽  
Seunghee Lee ◽  
Wooseok Jeong ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Human Brain ◽  
Low Power ◽  
Low Power Consumption ◽  
Next Generation ◽  
Process Information ◽  
Oxide Semiconductors ◽  
Double Oxide ◽  
Significant Attention

Neuromorphic devices that mimic a human brain have attracted significant attention in the field of next-generation semiconductors. The human brain can efficiently process information with low power consumption. Several energy...

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