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2 results on '"humidity sensors"'

1. SISTEMA DE MONITORAMENTO AMBIENTAL E DE SEGURANÇA AGRÍCOLA BASEADO EM IoT.

Author

Sarma, Priyanka, Islam, Atowar ul, and Bayan, Tony

Subjects
*PLANT-water relationships, *SOIL degradation, *SOIL moisture, *WATER vapor, *WATER pumps
Abstract

Background: Agriculture is a vital part of the economy that feeds a part of the world expanding population. However, the sector faces several difficulties, including water constraints, soil degradation, and climate change. The demand for increased security and safety in agricultural activities worsens these problems. This paper suggests an IoT-based agriculture environment and security monitoring system address these issues. Aims: The main objective of this work is to develop an intelligent monitoring and automated irrigation system that minimizes water use based on individual conditions and enables real-time environmental Methods: The Arduino Uno R3 microcontroller based on Microchip ATmega328P is used to gather environmental data such as humidity, temperature, soil moisture levels. The Arduino board is integrated with a relay and RTC module to water plants at precise times. It also has a passive infrared sensor to detect intruders. ESP32 camera is also used to record the current condition of the agricultural ground automatically. A sample of reading in an interval of 1 hour is recorded. This method involves wirelessly transmitting the data to cloud-based platforms. Results: The value of the sensor at the start of a wet condition is 0. When this occurs, the motor pump turns off, and the measured value is communicated to the microcontroller through NodeMCU. The motor pump automatically turns ON and OFF when plants receive enough amount of water. Discussion: It has been observed the water pump starts as soon as the temperature threshold of 19.5 °C is achieved. It has been observed that as humidity increases, it is unnecessary to water the plants as the plants take up water vapor from the surface of the leaves under humid conditions. Conclusions: This research offers a convenient prototype model that can simultaneously measure temperature, moisture, and humidity, identify intrusion, and remotely monitor it over the internet. It was concluded that with the decrease in moisture of the soil, the plants need to be watered. [ABSTRACT FROM AUTHOR]

Published
2023
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2. Assembly and installation of a system of automatic control of irrigation

Author

Maciel, Wlisses Matos and Ribeiro, Renato Sílvio da Frota

Subjects
Fuzzy logic, Sensor de umidade, Humidity sensors, Lógica Fuzzy, Irrigação e automação, Irrigação e drenagem
Abstract

This work had as objectives to set up and to install overhead irrigations with different automation levels: automatic intelligent, automatic for temporizador and no automatic. An experiment was driven in the experimental area of the Laboratory of Hydraulics and Irrigation of the Federal University of Ceará, in Fortaleza, CE, in the period of October of 2004 to January of 2005. Those three systems were distributed in a statistical delineamento in blocks casualizados. The delineamento consisted of 6 blocks and three treatments distributed in 18 experimental portions measuring 4m of width and 12m of length, occupying a total area of 1600m2. The assembly was divided in two phases, the first phase consisted of the assembly of the electronic and electric systems composed for sensor of humidity (resistance blocks), sensor of temperature (termopares), datalogger, multiplexador, digital plate of E/S pattern ISA, conditioning plate of relés, temporizador, contactores, relés, departure key, cabeamento, aterramento and Monday of the waterworks and of irrigation composed of bombs, piping, reservoirs, manômetros, hydrometers, venturis, pressure sockets and connections; all of the extolled systems were mounted and installed in the field. Este trabalho teve como objetivos montar e instalar sistemas de irrigação com diferentes níveis de automação: automático inteligente, automático por temporizador e não automático. Foi conduzido um experimento na área experimental do Laboratório de Hidráulica e Irrigação da Universidade Federal do Ceará, em Fortaleza, CE, no período de outubro de 2004 a janeiro de 2005. Esses três sistemas foram distribuídos em um delineamento estatístico em blocos casualizados. O delineamento constou de 6 blocos e três tratamentos distribuídos em 18 parcelas experimentais medindo 4m de largura e 12m de comprimento, ocupando uma área total de 1600m2. A montagem foi dividida em duas fases, a primeira fase consistiu na montagem dos sistemas eletrônico e elétrico composto por sensores de umidade (blocos de resistência), sensores de temperatura (termopares), datalogger, multiplexador, placa digital de E/S padrão ISA, placa condicionadora de relés, temporizador, contactores, relés, chave de partida, cabeamento, aterramento e a segunda dos sistemas hidráulico e de irrigação composto de bombas, tubulações, reservatórios, manômetros, hidrômetros, venturis, tomadas de pressão e conexões; todos os sistemas preconizados foram montados e instalado no campo.

Published
2005

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