scholarly journals DESENVOLVIMENTO DE UM TENSIÔMETRO DIGITAL COM SISTEMA DE AQUISIÇÃO E ARMAZENAMENTO DE DADOS

Irriga ◽  
2017 ◽  
Vol 1 (1) ◽  
pp. 11-20
Author(s):  
Luiz Eduardo Vieira de Arruda ◽  
VLADIMIR BATISTA FIGUEIRÊDO ◽  
SÉRGIO LUIZ AGUILAR LEVIEN ◽  
JOSÉ FRANCISMAR DE MEDEIROS
Keyword(s):  
Real Time ◽  
Data Storage ◽  
Liquid Crystal Display ◽  
Low Cost ◽  
Soil Water Tension ◽  
Real Time Clock ◽  
Voltage Transducer ◽  
Water Tension ◽  
Sd Card ◽  
E Mail

DESENVOLVIMENTO DE UM TENSIÔMETRO DIGITAL COM SISTEMA DE AQUISIÇÃO E ARMAZENAMENTO DE DADOS LUIZ EDUARDO VIEIRA DE ARRUDA1; VLADIMIR BATISTA FIGUEIRÊDO2; SÉRGIO LUIZ AGUILAR LEVIEN3 E JOSÉ FRANCISMAR DE MEDEIROS4 1Mestre, Doutorando do Programa de Pós Graduação em Manejo de Solo e Água (PPGMSA), bolsista da CAPES; Universidade Federal Rural do Semi-Árido (UFERSA); Av. Francisco Mota, 572; Bairro Costa e Silva; 59.625-900, Mossoró/RN; e-mail: [email protected] de Ciências Ambientais e Tecnológicas (DCAT), UFERSA, Av. Francisco Mota, 572; Bairro Costa e Silva; 59.625-900, Mossoró, RN; e-mail: [email protected]; [email protected]; [email protected]  1 RESUMO Para um bom manejo da água na agricultura faz-se necessário a utilização de instrumentos que auxiliem o agricultor na tomada de decisão, indicando quanto e quando se deve aplicar água às culturas. Em face do exposto, notou-se a necessidade do desenvolvimento de um tensiômetro com sistema de aquisição e armazenamento de dados de forma contínua a baixo custo. O modelo proposto é composto por: cápsula porosa (25 x 11 mm), hastes de acrílico transparente com diâmetros de 12 e 15 mm, tampa de borracha siliconada, mangueira plástica transparente, mangueira de borracha e transdutores de tensão modelo Motorola® MPX 5100AP. Para a construção do sistema de aquisição dos dados foi utilizado uma placa Arduino® modelo MEGA 2560, três capacitores, placa fenolítica, bornes, jumpers, cabo quatro vias, RTC (Real Time Clock) modelo DS1307, display de cristal líquido (16 x 2), módulo de cartão de memória SD card, fonte de computador bivolt para alimentação de todo sistema com tensão de 12 Vcc e caixa plástica para acondicionamento dos circuitos. Como resultado da calibração do transdutor de tensão obteve-se uma equação com R2 igual a 0,9996, apresentando ótimo ajuste de acordo com o valor obtido. Palavras-chave: Arduino, transdutor de tensão, tensão de água no solo  ARRUDA, L. E. V.; FIGUEIRÊDO, V. B.; LEVIEN, S. L. A.; MEDEIROS, J. F.DEVELOPMENT OF A DIGITAL SOIL TENSIOMETER WITH A SYSTEM FOR INPUTTING AND STORING DATA  2 ABSTRACT In order to have a good water management in agricultural processes, it is necessary to use instruments that will assist the farmer in the decision-making processes, indicating how much and when to apply water to the crops. Considering the aforementioned, it was noted the demand of development of a tensiometer in conjunction with a data storage and input system, inputting and storing data continuously and at low cost. The proposed model consists of a porous capsule (25 x 11 mm), clear acrylic tube with diameters of 12 and 15 mm, a silicone rubber cap, a clear plastic hose, a rubber hose and voltage transducers Motorola® MPX5100AP model. In order to create the data system used an Arduino® platform model MEGA 2560, three capacitors, a phenolic sheet, terminals, jumpers, a four-way cable, a Real Time Clock (RTC) model DS1307, a liquid crystal display (16 x 2), a Micro SD memory card module, a dual voltage computer to supply power to the whole system using 12 Vcc voltage and plastic housing to store the circuit. The voltage transducer calibration resulted in an equation meaning that R2 is equal to 0.9996, thus presenting an optimal adjustment according to the obtained value. Keywords: Arduino, voltage transducer, soil water tension

scholarly journals An IoT based Low-cost Weather Monitoring System for Smart Farming

2021 ◽  
Author(s):  
L.P.S.S.K. Dayananda ◽  
A. Narmilan ◽  
P. Pirapuraj
Keyword(s):  
Liquid Crystal ◽  
Mobile Phone ◽  
Real Time ◽  
Monitoring System ◽  
Liquid Crystal Display ◽  
Low Cost ◽  
Weather Conditions ◽  
Weather Data ◽  
The Internet ◽  
Arduino Uno

Background: Weather monitoring is an important aspect of crop cultivation for reducing economic loss while increasing productivity. Weather is the combination of current meteorological components, such as temperature, wind direction and speed, amount and kind of precipitation, sunshine hours and so on. The weather defines a time span ranging from a few hours to several days. The periodic or continuous surveillance or the analysis of the status of the atmosphere and the climate, including parameters such as temperature, moisture, wind velocity and barometric pressure, is known as weather monitoring. Because of the increased usage of the internet, weather monitoring has been upgraded to smart weather monitoring. The Internet of Things (IoT) is one of the new technology that can help with many precision farming operations. Smart weather monitoring is one of the precision agriculture technologies that use sensors to monitor correct weather. The main objective of the research is to design a smart weather monitoring and real-time alert system to overcome the issue of monitoring weather conditions in agricultural farms in order for farmers to make better decisions. Methods: Different sensors were used in this study to detect temperature and humidity, pressure, rain, light intensity, CO2 level, wind speed and direction in an agricultural farm and real time clock sensor was used to measured real time weather data. The major component of this system was an Arduino Uno microcontroller and the system ran according to a program written in the Arduino Uno software. Result: This is a low-cost smart weather monitoring system. This system’s output unit were a liquid crystal display and a GSM900A module. The weather data was displayed on a liquid crystal display and the GSM900A module was used to send the data to a mobile phone. This smart weather station was used to monitor real-time weather conditions while sending weather information to the farmer’s mobile phone, allowing him to make better decisions to increase yield.

Using AI at the Edge and Incremental Machine Learning to Process Onboard Instrument Data

2021 ◽  
Author(s):  
Nicholas Parkyn
Keyword(s):  
Machine Learning ◽  
Neural Networks ◽  
Real Time ◽  
Data Storage ◽  
High Performance ◽  
Heterogeneous Computing ◽  
Low Cost ◽  
Machine Intelligence ◽  
Edge Computing ◽  
Continual Learning

Emerging heterogeneous computing, computing at the edge, machine learning and AI at the edge technology drives approaches and techniques for processing and analysing onboard instrument data in near real-time. The author has used edge computing and neural networks combined with high performance heterogeneous computing platforms to accelerate AI workloads. Heterogeneous computing hardware used is readily available, low cost, delivers impressive AI performance and can run multiple neural networks in parallel. Collecting, processing and machine learning from onboard instruments data in near real-time is not a trivial problem due to data volumes, complexities of data filtering, data storage and continual learning. Little research has been done on continual machine learning which aims at a higher level of machine intelligence through providing the artificial agents with the ability to learn from a non-stationary and never-ending stream of data. The author has applied the concept of continual learning to building a system that continually learns from actual boat performance and refines predictions previously done using static VPP data. The neural networks used are initially trained using the output from traditional VPP software and continue to learn from actual data collected under real sailing conditions. The author will present the system design, AI, and edge computing techniques used and the approaches he has researched for incremental training to realise continual learning.

scholarly journals Low-Cost and Secure Communication System for SCADA System of Remote Microgrids

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Amjad Iqbal ◽  
M. Tariq Iqbal
Keyword(s):  
Data Storage ◽  
Communication System ◽  
Secure Communication ◽  
Low Cost ◽  
Data Logging ◽  
Local Data ◽  
Authentication Code ◽  
Power Efficient ◽  
Scada System ◽  
Sd Card

Renewable energy-based local microgrids are gaining popularity despite the unavailability of low-cost, power efficient, and secure communication system for its supervisory control and data acquisition (SCADA) system. This research has been carried out to address this issue along with the additional features such as data uploading to a server through a gateway, local data logging, and alerting the concerned crew in case of any fault to minimize the outage time. This paper presents the design of a communication system for the SCADA system of microgrid. ESP32 with LoRa has been used for communication between two nodes or a node and central SCADA unit. Communication security has been achieved by implementing AES cryptography. Data authenticity has been achieved by introducing a unique message authentication code (MAC) for each message. A mesh-like network has been implemented to improve the LoRa range. ESP32 and dragino-uno based LoRa gateways have been tried for uploading the data to the server, and local data storage has been achieved using an SD card. The main controller working as the SCADA unit has the feature of sending emails. Detailed system design and test results are presented in this paper.

Design of Gamma Energy Spectrometer Based on the Technology of LabVIEW and Bluetooth

2010 ◽  
Vol 113-116 ◽  
pp. 720-724
Author(s):  
Fang Yuan ◽  
Yue Zhong Li ◽  
Li Yi Xie
Keyword(s):  
Data Storage ◽  
Liquid Crystal Display ◽  
Low Cost ◽  
Acquisition System ◽  
Gamma Energy ◽  
Display Module ◽  
Communication Module ◽  
Energy Spectrometer ◽  
Analysis System ◽  
Data Acquisition Module

This paper introduced the design of gamma energy spectrometer by technology of LabVIEW and Bluetooth. The hardware of system included portable gamma energy spectrometer, Bluetooth module and PC. The software of system included the composed of acquisition system by the MCU and analysis system by PC.The design of acquisition system included the design of main program, liquid crystal display module, keyboard module, Bluetooth communication module and data acquisition module. The design of analysis system included the design of serial communication module, data storage module and data processing module. Practice shows that the energy spectrometer has a user-friendly, flexible, low cost, easy to expand and good performance.

scholarly journals Rancang Bangun Mesin Pompa Air Otomatis Untuk Penyaluran Air Dari Tangki Ke Kran Pengambilan Air Di Desa Regaji Menggunakan Teknik Counter Berbasis Mikrokontroler

2020 ◽  
Vol 3 (2) ◽  
pp. 81
Author(s):  
Leo Irvandi Tarigan ◽  
Saniman S ◽  
Darjat Saripurna ◽  
Sri Murniyanti
Keyword(s):  
Liquid Crystal ◽  
Real Time ◽  
Liquid Crystal Display ◽  
Real Time Clock

Warga desa Regaji dalam mendapatkan air untuk kebutuhan sehari-hari masih mendapatkan adanya kendala seperti telat dalam mendaptkan kebutuhan air untuk sehari-hari, karena proses penyaluran air masih dilakukan secara manual. Oleh, karena itu dibutuhkan suatu alat yang dapat menghemat waktu dalam penyaluran air di desa Regaji. Alat tersebut berupa sistem yang dapat bekerja otomatis untuk penyaluran air, dengan menggunakan alat ini diharapkan penyaluran air dapat dilakukan tepat waktu dan pada saat yang tepat. Penelitian ini dilakukan dengan membuat suatu perangkat sistem untuk penyaluran air otomatis menggunakan mikrokontroler ATMega16 sebagai pengendali utama dan sensor ultrasonik. Sistem ini juga menggunakan Real Time Clock (RTC) sebagai pewaktu dan Liquid Crystal Display (LCD) sebagai penampil. Mesin pompa air otomatis yang telah dibuat dapat menyalurkan air secara otomatis, apabila waktu sudah berada pada jadwal yang telah ditetapkan, maka proses penyaluran air akan dilakukan secara otomatis dan LCD akan menunjukkan waktu saat ini. 

Smart Gas Outflow Detection and Safety Circumstance System Using Cloud Technology

2017 ◽  
Vol 8 (3) ◽  
pp. 721
Author(s):  
Srikanth Kottalanka ◽  
D. Arivazhagan
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Electrical Power ◽  
Safety Device ◽  
Gas Leakage ◽  
Gas Cylinder ◽  
Cloud Server ◽  
Real Time Tracking ◽  
Precautionary Measures ◽  
E Mail

<p>The project aim is to design and develop a cloud connected smart LPG gas cylinder platform, acting as a safety device for detecting LPG gas drip at minimum levels to avoid any credible incidents. It is also capable of detect fire exists in the area and level of the gas in order to provide real time monitoring and alert over Cloud server. If an aberrant condition is detected, the device gives an alert to the smartphone app of the user and also sends an alert e-mail to other authorities. In addition to this upon detecting a gas leakage or a fire breakout, the device automatically takes safety precautionary measures, like gas valve closing, ventilation opening, fire sprinkler activation and home electrical power supply cut-off. The device connects to the internet via Wi-Fi and thus increasing the mobility of the platform within the premises of the house. A Wi-Fi capable ARM Cortex-M4 Launchpad is used to execute the system. This device proposes a complete, low-cost, powerful and accessible way of real-time tracking and distant control of gas leakages and preventive mechanisms in household and industrial areas.</p>

scholarly journals Vertical MEMS Resonators for Real-Time Clock Applications

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
A. Pomarico ◽  
A. Morea ◽  
P. Flora ◽  
G. Roselli ◽  
E. Lasalandra
Keyword(s):  
Real Time ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Frequency Stability ◽  
Equivalent Resistance ◽  
Real Time Clock ◽  
Mems Resonator ◽  
Mems Resonators ◽  
Frequency Tunable

MEMS resonators are today widely investigated as a desirable alternative to quartz resonators in real-time clock applications, because of their low-cost, integration capability properties. Nevertheless, MEMS resonators performances are still not competitive, especially in terms of frequency stability and device equivalent resistance (and, then, power consumption). We propose a new structure for a MEMS resonator, with a vertical-like transduction mechanism, which exhibits promising features. The vertical resonator can be fabricated with the low-cost, high performance THELMA technology, and it is designed to be efficiently frequency tunable. With respect to the commonly investigated lateral resonators, it is expected to have lower equivalent resistances and improved large-scale repeatability characteristics.

Design of GPRS Based on MCU STC12C5A60S2

2011 ◽  
Vol 130-134 ◽  
pp. 4028-4031
Author(s):  
Guang Li Long
Keyword(s):  
Liquid Crystal Display ◽  
Low Cost ◽  
Serial Communication ◽  
Electric Circuit ◽  
Data Traffic ◽  
Liquid Crystal Display Monitor ◽  
Design Requirements ◽  
To Receive ◽  
E Mail ◽  
Display Monitor

The MCU has the smaller volume, low cost, face control, antijamming ability strong and so on merits, GPRS is based on the GSM development foundation in data traffic. one kind of GPRS system Has been designed by using MCU STC12C5A60S2, it including correspondence transformation connection, SIM300 module, MCU, display circuit, keyboard electric circuit, RS232 exterior serial communication connection and so on. The related hardware welding on the PCB, the software programming after-burning writes in the MCU, inserts the liquid crystal display monitor and the SIM card, joins the receiver and the microphone, connects the good GPRS antenna. On the electricity, the establishment correspondence transformation connection, may realize the close-down, the dial and the answering telephone, transmits and receives the SMS, to receive and dispatch E-mail, carries on the Internet to glance over and so on, indicated that has achieved the design requirements.

scholarly journals Design and Implementation of an IoT Based LPG and CO Gases Monitoring System

2021 ◽  
Author(s):  
Otoniel Flores-Cortez ◽  
Ronny Cortez ◽  
Bruno González
Keyword(s):  
Real Time ◽  
Data Storage ◽  
Low Cost ◽  
Field Tests ◽  
Liquefied Petroleum Gas ◽  
Potential Health ◽  
Flammable Gas ◽  
Amazon Web Services ◽  
Use Of Internet ◽  
Telematics System

Nowadays use of liquefied petroleum gas (LPG) has increased. LPG is an asphyxiating, volatile and highly flammable gas. In a LPG leak situation, potential health accidents are increased either by inhalation or by combustion of the gas. On the other hand, carbon monoxide (CO) is a toxic gas that comes mainly from combustion in car engines. Breathing CO-polluted air can cause dizziness, fainting, breathing problems, and sometimes death. To prevent health accidents, including explosions, in open or closed environments, remote and real-time monitoring of the concentration levels of CO and LPG gases has become a necessity. The aim of this work is to demonstrate the use of Internet of Things (IoT) techniques to design and build a telemetry system to monitor in real-time the concentration of GLP and CO gases in the surrounding air. To implement this work, as central hardware there is a microcontroller, CO and PLG sensors on the electronic station. Besides, Amazon Web Services (AWS) was used as an IoT platform and data storage in the cloud. The main result was a telematics system to monitor in real time the concentrations of both GLP and CO gases, whose data is accessible from any device with internet access through a website. Field tests have been successful and have shown that the proposed system is an efficient and low-cost option.

scholarly journals RANCANG BANGUN PEREKAM DATA KELEMBABAN RELATIF DAN SUHU UDARA BERBASIS MIKROKONTROLER

2017 ◽  
Vol 1 (1) ◽  
pp. 73-79
Author(s):  
Acta Withamana ◽  
Indra Jaya ◽  
Ayi Rachmat
Keyword(s):  
Real Time ◽  
Basic Program ◽  
Real Time Clock ◽  
Linear Regulator ◽  
Sd Card

Kelembaban relatif (RH) dan suhu udara merupakan salah satu parameter yang penting dalam pengukuran meteorologi. Pengukuran kedua parameter secara kontinyu diperlukan dalam bidang perikanan dan kelautan. Sebuah perekam data untuk keperluan ini perlu dikembangkan. Perekam data disusun atas mikrokontroler ATmega32 dengan clock 8Mhz, Real-time clock (RTC) DS1307, Sensor kelembaban relatif dan suhu udara Sensirion SHT11, soket SD card, Low-dropout (LDO) Linear Regulator LP2950 dan AIC1734. Selain itu dibutuhkan LED dan beberapa komponen pasif seperti resistor serta kapasitor. Perangkat lunak atau biasa disebut firmware pada alat perekam data ini ditulis dengan menggunakan bahasa BASIC. Program yang digunakan adalah BASCOM-AVR versi 1.11.9.0. Hasil uji coba skala lapangan menunjukan selisih terbesar RH sebesar -20,4% dan suhu udara sebesar 7,3ºC yang disebabkan oleh masuknya kontaminan dan desain PCB dan casing yang tidak melepas panas dengan baik

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