scholarly journals Sistem Monitoring Pendeteksi Kebocoran LPG berbasis Mikrokontroller ATmega16 menggunakan RF APC220

Author(s):  
RATNA SUSANA ◽  
DECY NATALIANA ◽  
UMMI ATIAH

ABSTRAKPenggunaan LPG sebagai bahan bakar alternatif pengganti bahan bakar minyak dirasakan lebih efektif dan praktis. Namun kandungan senyawa di dalamnya memiliki efek yang negatif jika menguap di udara bebas. Sistem detektor gas LPG dapat menjadi salah satu solusi untuk mengetahui lebih dini terjadinya kebocoran gas. Implementasi sistem detektor gas LPG pada penelitian ini berupa sistem monitoring nirkabel yang dilengkapi alarm sebagai indikasi jika terjadi kebocoran gas. Sistem terdiri dari bagian Remote Controller dan Master Controller. Remote Controller menggunakan mikrokontroler ATMega16 yang terintegrasi dengan sensor MQ5, LCD dan transceiver RF APC220. Sedangkan Master Controller berupa komputer (PC) yang dapat menampilkan kondisi ruangan yang dideteksi oleh bagian Remote Controller. Sistem berhasil mendeteksi gas LPG dan menampilkan kadar konsentrasinya dalam rentang 200 sampai dengan 1000 ppm. Ketika kadar konsentrasi gas mencapai 5000 ppm, alarm aktif secara otomatis dan memberikan status waspada. Pengiriman data secara nirkabel dengan adanya sejumlah penghalang berhasil dilakukan sampai jarak 200 m.Kata kunci: Sistem Monitoring, Remote Controller, Master Controller, LPG, RF APC220 ABSTRACTThe use of LPG as a fuel alternative to fossil fuels may be more effective and practical. Neverfluless its compound has a negative effect if it evaporates to the air. LPG gas detector system may be one solution to determine the early occurrence of gas leak. The detector system implementation in this study was a wireless monitoring system that had alarm to indicate if there was the gas leak. The system consisted of the Remote Controller and the Master Controller. Remote Controller used ATmega16 microcontroller integrated with MQ5 sensor, LCD and RF transceiver APC220. While the Master Controller in the form of a computer (PC) that could display a room condition was detected by the Remote Controller section. LPG gas system successfully detected and displayed the levels of concentration in 200 up to 1000 range ppm. When the concentration of gas reached 5000 ppm, the alarm activated automatically and provided alert status. The wirelless sending data with a number of barriers was carried out successfully up to a distance of 200 m.Keywords: Monitoring System, Remote Controller, Master Controller, LPG, RF APC220

Author(s):  
Fransiscus Yudi Limpraptono ◽  
Eko Nurcahyo ◽  
Mochammad Ibrahim Ashari ◽  
Erkata Yandri ◽  
Yahya Jani

The increasing demand for electrical energy and the decreasing supply of fossil fuels in recent years have increased the cost of electrical energy. So that the culture of saving electrical energy is a habit that must be cultivated in the community. On the other hand, energy-saving behavior cannot be realized massively without a support system that can control energy use. With these concerns, it is necessary to develop a method that encourages a culture of saving electrical energy. This paper proposes a system that supports active energy efficiency methods that can support an energy-efficient culture. This system is an electric power monitoring system that is integrated with a smart electrical panel that continuously monitors the use of electrical energy and can control electrical loads automatically, record electricity usage, provide comprehensive reports and analyze energy usage. The method used to carry out this research is research and development. This research has produced a prototype of electrical power control and monitoring system that has a smart panel based on a raspberry PI 3 and PZEM-004t power energy meter. The monitoring system performs and executes automatic control of electrical loads. The system can also provide reports in the form of data monitoring in daily, weekly, monthly or annual period. From the test results, it can be concluded that the system can work well. This research is expected to contribute to providing a system that can support government efforts in saving energy.


2019 ◽  
Vol 7 (2) ◽  
pp. 670
Author(s):  
Sarmad Nozad Mahmood ◽  
Asnor Juraiza Ishak ◽  
Salam T. Hussain
Keyword(s):  

Author(s):  
Dani Sasmoko ◽  
Dzyo Bachtiar

Internet of Things (IoT) connects a global infrastructure in communities so they can take benefit of advanced services, by connecting objects (things) both physical and virtual with the Internet so that objects can communicate each other. The object of this study is a baby box to control the baby’s condition. When the baby cries too long it may cause Baby Distressed Tantrum which is the feeling of being depressed in the baby because they feel ignored. If this happens for a long time will endanger the baby's health as it is related to respiratory function and cardiac performance. The function of the baby box is to observe a baby when left without supervision. It will enable users to know if the baby is sleeping, awake or crying. Leaving a crying baby too long may have a negative effect. By applying the Internet of Things (IoT) in the design of an intelligent a baby box will help the parents and babysitter in controlling the baby if they have other activities to do. The baby box monitoring system has a dht11 temperature and humidity sensor, and a noise sensor to detect the baby crying. An esp8266 module on Wemos d1 will send data to an android smartphone and notify the user by sound or vibration.


2013 ◽  
Vol 6 (12) ◽  
pp. 3407-3423 ◽  
Author(s):  
B. Bonn ◽  
S. Sun ◽  
W. Haunold ◽  
R. Sitals ◽  
E. van Beesel ◽  
...  

Abstract. In this study we report the set-up of a novel twin chamber technique that uses the comparative method and establishes an appropriate connection of atmospheric and laboratory methods to broaden the tools for investigations. It is designed to study the impact of certain parameters and gases on ambient processes, such as particle formation online, and can be applied in a large variety of conditions. The characterisation of both chambers proved that both chambers operate identically, with a residence time xT (COMPASS1) = 26.5 ± 0.3 min and xT (COMPASS2) = 26.6 ± 0.4 min, at a typical flow rate of 15 L min−1 and a gas leak rate of (1.6 ± 0.8) × 10−5 s−1. Particle loss rates were found to be larger (due to the particles' stickiness to the chamber walls), with an extrapolated maximum of 1.8 × 10−3 s−1 at 1 nm, i.e. a hundredfold of the gas leak rate. This latter value is associated with sticky non-volatile gaseous compounds, too. Comparison measurement showed no significant differences. Therefore operation under atmospheric conditions is trustworthy. To indicate the applicability and the benefit of the system, a set of experiments was conducted under different conditions, i.e. urban and remote, enhanced ozone and terpenes as well as reduced sunlight. In order to do so, an ozone lamp was applied to enhance ozone in one of two chambers; the measurement chamber was protected from radiation by a first-aid cover and volatile organic compounds (VOCs) were added using a small additional flow and a temperature-controlled oven. During the elevated ozone period, ambient particle number and volume increased substantially at urban and remote conditions, but by a different intensity. Protection of solar radiation displayed a clear negative effect on particle number, while terpene addition did cause a distinct daily pattern. E.g. adding β pinene particle number concentration rose by 13% maximum at noontime, while no significant effect was observable during darkness. Therefore, the system is a useful tool for investigating local precursors and the details of ambient particle formation at surface locations as well as potential future feedback processes.


1982 ◽  
Vol 60 (3) ◽  
pp. 340-344 ◽  
Author(s):  
C. J. L. Moore ◽  
D. E. Brodie

Reproducible films of pure a-ZnTe and a-ZnSe have been prepared using a very high vacuum system and a complete microprocessor-based monitoring system. It is clear that not only must one reproduce every deposition parameter accurately, the anneal history of the sample must also be duplicated. The effect of a single parameter change, as well as the effect of a controlled gas leak which provides known ambients at 10−6 Torr during the sample deposition is reported.


2021 ◽  
Vol 284 ◽  
pp. 04007
Author(s):  
Dongwen Yan

An online environmental monitoring system based on ZigBee wireless sensor network is designed to overcome the drawbacks of the traditional indoor environment monitoring system, such as the difficulty of wiring and the poor flexibility. The ZigBee communication technology, web server technology and GSM communication technology are synthesized, and the indoor temperature and humidity, carbon monoxide, formaldehyde concentration and other environmental information are collected and monitored in real time by various supporting sensors. Users can complete local and remote real-time monitoring of indoor environment by opening Web pages. When a fire or gas leak occurs, users will receive alert messages in time. Experiment show that the system has the advantages of stable operation, simple use and good flexibility, and has high practical value and wide application prospects.


2021 ◽  
Vol 327 ◽  
pp. 02006
Author(s):  
Viktor Nikiforov ◽  
Irina Kostova

Annually a large amount of goods has been transported over the world and the most of the transportation is carried by seaborne. Although the seaborne trade is considered to be the most efficient – economically and environmentally friendly way of transportation an enormous amount of fossil fuels is used to fulfil the operation of the merchant fleet. Although we are living in times where efforts are directed to improvement of the state of the environment and reduction of the negative impact of the Greenhouse Gases, the fossil fuels still remain the main energy source used to run the internal combustion engines widely used in the ships nowadays. A well-known fact is that the fuel burning leads to significant harmful emissions generation causing a serious negative effect on the surrounding us environment. The introduced by IMO and MEPC requirements regarding the Greenhouse Gases (GHG) imposes for development and application of new criteria when selecting the ship’s propulsion plant. In the current article will be observed three ship groups consisting of real container vessels. The purpose is to analyse the impact caused by the fuel type used in the ship’s engines on the GHG generation and the economic indicators related with fuel costs


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