Energi listrik merupakan salah satu kebutuhan hidup. Penggunaan beban listrik induktif dapat menurunkan nilai factor daya pada listrik, faktor daya yang baik adalah antara 0,85 sampai 1. Oleh karena ...itu perlu ditambahkan kompensasi daya reaktif yang timbul dari beban listrik induktif untuk menghindari kerugian yang timbul akibat kekurangan daya. nilai faktor daya. Dengan menggunakan kapasitor yang dipasang secara paralel dapat mengimbangi daya reaktif dan meningkatkan nilai faktor daya. Alat ini menggunakan ESP32 sebagai mikrokontroler dan sensor PZEM 004T untuk mengukur besaran listrik. Hasil pengukuran ditampilkan pada LCD dan smartphone Android yang dikirimkan melalui internet. Modul relai digunakan sebagai sakelar pemilihan kapasitor otomatis untuk peningkatan faktor daya. Ditemukan bahwa hasil tes pembacaan sensor memiliki akurasi hingga 99,7%. Untuk peningkatan efisiensi, nilai faktor daya dapat mencapai 95%, dan peningkatan tertinggi adalah 35,8%. Sedangkan pengujian pengiriman data juga dapat dilakukan pada jarak 53 Km.
In recent years, technological advancement characterized by heightened connectivity and digitization has revolutionized our interaction with the world. This evolution has been exemplified by the ...emergence of the Internet of Things, which has introduced a new era of digitization and automation, primarily propelled by devices based on the ESP32 microcontroller. This study seeks to comprehensively evaluate and characterize a fully functional sensor network built upon the ESP32 microcontroller. The evaluation covers three key aspects: network performance, the ESP32’s built-in ADC peripheral, and the data acquisition system. The ESP32 device has demonstrated its capability to consistently sample sensors at a high rate with remarkable stability. The ESP32’s built-in ADC exhibited undesirable behavior for analog devices, attributed to noise and non-linearity. As a result, in applications requiring precision with analog sensors, the utilization of a cost-effective external ADC, as employed in this study, is recommended. Finally, during the network analysis of the sensor network, no issues were identified. The data acquisition system exhibited no bottlenecks, and packet losses remained minimal, regardless of the sampling period.
ABSTRAKPermasalah bagi penggiat berkebun bertempat tinggal diperkotaan terkendala oleh kesibukan lain. Maka dari itu tujuan dari penelitian ini dikembangkannya sistem IOT dan aplikasi Android untuk ...memonitoring hidroponik tanaman pakcoy secara indoor. HOPONIC (Home Pot Hidroponic) merupakan prototipe sistem monitoring hidroponik dengan metode wick yang berlokasi di dalam ruangan atau indoor, dan aplikasi Android yang dikembangkan dengan menggunakan framework Flutter. Notifikasi aplikasi Android memberitahu perubahan pH, suhu, ketinggian, dan larutan nutrisi oleh sistem HOPONIC. Persentase keberhasilan dari pembacaan nilai node sensor pada sistem HOPONIC adalah pH 96,09%, kadar larutan nutrisi 97,11%, suhu 91,68%, ketinggian atau debit 99,84%, intensitas cahaya 88,17%. Dengan HOPONIC pertumbuhan tinggi tanaman sayur pakcoy lebih unggul sebesar 0,43 cm, sedangkan untuk pertumbuhan daun tanaman pakoy lebih unggul dengan menggunakan HOPONIC sebesar 1,7 Lembar Daun.Kata kunci: IoT, Hidroponik, Pakcoy, Arduino, ESP32 ABSTRACTThe problem for gardening activists living in urban areas is that they are hampered by other activities. Therefore, this research aims to develop an IoT system and Android application for indoor hydroponic monitoring of pakcoy plants. HOPONIC (Home Pot Hydroponic) is a prototype hydroponic monitoring system with a wick method located indoors, and an Android application developed using the Flutter framework. Android application notifications notify changes in pH, temperature, altitude, and nutrient solution by the HOPONIC system. The percentage of successful reading of sensor node values in the HOPONIC system is pH 96.09%, nutrient solution content 97.11%, temperature 91.68%, height or discharge 99.84%, and light intensity 88.17%. With HOPONIC, the height growth of Pakcoy vegetable plants is superior at 0.43 cm, while for leaf growth, Pakoy plants are superior when using HOPONIC at 1.7 leaves.Keywords: IoT, Hydroponics, Pakcoy, Arduino, ESP32
En los últimos tiempos, ha habido un gran interés por las aplicaciones de IoT. A su vez, su desarrollo ha sido delineado por requerimientos específicos, como la eficiencia energética. Dado el ...contexto mundial de cambio climático, es importante que las nuevas tecnologías ayuden a reducir la huella de carbono. En este sentido, las interfaces de programación de aplicaciones WEB (APIs WEB) se presentan como una solución para la conectividad de los dispositivos IoT. Este estudio analiza como varía el consumo de energía de las baterías en las aplicaciones de IoT que utilizan servicios de APIs WEB, así como los factores que influyen en la reducción del consumo de energía.
Since the emergence of the Coronavirus and its declaration as a global pandemic, the world has changed all sectors radically. Covid-19 has caused a very strong effect on daily life and adaptation to ...new ways of learning, working, and communicating. The smart city is one of the most important solutions that enable us to go on with daily life during the pandemic and beyond. The smart city employs the current technology and smart solutions to serve the community, and improve the services provided to the people, particularly in vital sectors such as health, education, electricity, transportation, communications, and others. This article deals with two innovative applications for the Internet of things in smart cities: The first refers to designing an intelligent health monitoring system, which aims to reduce the spread of Coronavirus infection from people to the medical staff, as well as reduce work pressure on the medical staff. The second application refers to monitoring electrical energy consumed by measuring and monitoring electrical parameters and energy consumption. In addition, it helps us to know the power line trespasser. Both systems are implemented by using sensors to gather data in real-time and then transmit it to the server.
Patient health monitoring system using IoT K., Sangeethalakshmi; S., Preethi Angel; U., Preethi ...
Materials today : proceedings,
2023, 2023-00-00, Volume:
80
Journal Article
Peer reviewed
Healthcare monitoring systems have been one of the most important system in the last decade, and they have become increasingly technological. Humans are facing various issue and untimely death due to ...multiple illness, due to a lack of medical treatment for patients. To overcome this issue a real time health monitoring system has proposed based on IOT. The proposed system consists of mobile application and GSM for continuous wireless monitoring of patients. The main aim is to create a dependable patient management system based on IoT so that healthcare professionals can monitor their patients who are either hospitalized or at home using an IOT based integrated healthcare system to ensure quality patient care. Sensors are used to track vital parameters, and the data collected by the sensors is sent to the cloud via a WiFi module. A wireless healthcare monitoring system has created that can provide real time online information about a patients conditions. The system is made up of sensors, a data acquisition unit, a microcontroller (i.e. ESP32) and software. The patients temperature, heart beat rate, ECG, blood pressure and SPO2 are regularly monitored, displayed and stored by the system and the same has been sent to the doctors mobile containing the application. Additionally a message is sent to the doctors mobile if any of the parameter crosses the threshold value. Thus, IOT based real time health monitoring system systematically monitor the condition of patients health and save their life on time.
Sistem Gerbang otomatis, atau autogate, digunakan untuk memudahkan proses pembukaan dan penutupan Gerbang. Namun, dalam penggunaannya, muncul beberapa tantangan. Salah satunya adalah keterbatasan ...jarak akses pada sistem kendali autogate yang hanya menggunakan remote RF. Selain itu, sistem keamanan saat Gerbang menutup masih memiliki kelemahan, yaitu risiko potensial Gerbang menabrak objek yang berada di jalurnya. Untuk mengatasi tantangan-tantangan tersebut, penelitian ini bertujuan untuk merancang sistem pengendali Gerbang geser otomatis yang mengadopsi PLC sebagai pengontrol utama. Sistem ini juga akan menambahkan akses kontrol melalui smartphone berbasiskan android yang terhubung ke jaringan internet dengan bantuan modul ESP32 serta menggunakan basis data dari Firebase. Selain itu, sensor photobeam akan dimasukkan sebagai elemen pendeteksi objek yang berada di lintasan Gerbang sebagai system pengamannya. Dari Hasil implementasi dan analisis yang telah dilakukan, alat ini berhasil beroperasi sesuai dengan desainnya. Penggunaan smartphone sebagai kendali mampu mengatasi keterbatasan jarak akses, dengan waktu respons sekitar 0,5 hingga 3 detik, bergantung pada kualitas jaringan internet. Sensor photobeam juga berhasil mendeteksi objek yang berada di lintasan Gerbang, sehingga sistem kendali dapat menghentikan dan membuka Gerbang secara otomatis ketika objek terdeteksi saat Gerbang sedang menutup.
The paper proposes the development of an IoT measurement system that offers the user the possibility to monitor and record the electricity consumed by a consumer through the Blynk application. In ...monitoring electricity one of its most important aspects is the calibration of the sensors used. Accurate and reliable detection is the key factor in measuring and managing electrical equipment. Fundamental physical quantities such as voltage and current are useful for determining all other electrical quantities. The ESP32 development board used to develop the system has 18 channels ADC (analog to digital converter) and supports a Wi-Fi connection at the access point and implicitly to the internet. The developed system can measure the voltage (U), current (I), power consumption (W) and consumption / hour (kWh) of a consumer, in my case for the consumer I used a light bulb with a power given by the manufacturer of 10W. The measured values are displayed on the LCD display of the system or through the Blynk application which also allows the registration of these values for a period of 12 months.
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