scholarly journals Sistem Otomatisasi Plant Factory dengan Tiga Jenis Tanaman Sayuran Berbeda Berbasis Mikrokontroler dan Android

CHIPSET ◽  
2021 ◽  
Vol 2 (01) ◽  
pp. 20-32
Author(s):  
Hafizh Ramli Ramli ◽  
Lathifah Arief
Keyword(s):  
Data Storage ◽  
Room Temperature ◽  
Irradiation Time ◽  
Weather Conditions ◽  
Automation System ◽  
Android Application ◽  
Large Area ◽  
Sensors And Actuators ◽  
Plant Factory ◽  
Temperature And Humidity

Plant Factory is a technology concept that facilitates the formation of an environment that is suitable and good for plant growth, easy to control, does not require a large area of land, and is applied indoors so that it is not affected by outdoor weather conditions. Therefore created a system that automatically controls and monitors environmental conditions such as temperature, humidity and light. This system uses Arduino mega 2560 as a microcontroller, DHT22 temperature and humidity sensors to assess room temperature and humidity, RTC as an indicator of plant irradiation time, a micro SD module as data storage for sensors and actuators, and a Bluetooth module as a medium for data transmission. This actuator consists of a fan to control temperature, a humidifier to control humidity and an LED as a substitute for lighting plants. There are three plants as samples for testing the Plant Factory system, namely spinach, lettuce and mustard greens with each Plant Factory system for these plants. All temperature, humidity and actuator conditions can be monitored via the Android application. The plant factory automation system with three types of vegetable plants based on microcontroller and android is successfully running according to its function.

scholarly journals Sistem Pengendalian Suhu Serta Kelembaban Ruang Sarang Walet Menggunakan Fuzzy Berbasis Mikrokontroler

2021 ◽  
Vol 6 (2) ◽  
pp. 132
Author(s):  
Akhmad Syarif ◽  
Kusrini Kusrini ◽  
Eko Pramono
Keyword(s):  
Control System ◽  
Light Intensity ◽  
Automatic System ◽  
Room Temperature ◽  
Automation System ◽  
Dark Light ◽  
Produce Water ◽  
Control Temperature ◽  
Temperature And Humidity ◽  
The Ideal

Sarang walet merupakan tempat memproduksi air liur burung walet yang telah mengeras. Dalam pembuatan sarang walet harus memiliki kriteria-kriteria. Beberapa kriteria tersebut adalah suhu ruangan walet idealnya adalah 26-29 derajat celcius. Kelembaban udara juga berpengaruh terhadap sarang walet. Biasanya untuk mengatasi hal ini terdapat kolam air untuk menampung air pada ruangan. Air yang ada pada kolam tersebut di gunakan untuk mengatur kelembaban udara. Sehingga akan menjadi mirip seperti goa pada umum nya. Tingkat kelembaban dari 70 sampai 90 derajat celcius. Pada Intensitas cahaya 0 lux (gelap total) adalah intensitas cahaya yang disukai oleh Burung Walet untuk bersarang. Untuk bisa mendapatkan suhu dan kelembaban ideal diperlukan system automatis dalam mengontrol suhu dan kelembaban secara realtime. Dengan system automatisasi yang di atur melalui mikrokontroller menggunakan metode Fuzzy Sugeno untuk menghasilkan puteran air pada keran sehingga mempermudah kontrol ruang sarang walet dan juga data suhu serta kelembaban yang di kirim ke database untuk mempermudah monitoring suhu dan kelembaban dari website. Hasilnya adalah dengan penggunaan sistem kontrol suhu dan kelembaban menggunakan metode fuzzy Sugeno didapatkan hasil dengan 3 parameter yaitu suhu, kelembaban dan cahaya adalah 61.11%, sedangkan dengan 2 parameter yaitu suhu dan kelembaban adalah 39.29% dari 18x percobaan. Kata Kunci—Microcontroller, Arduino, Fuzzy Sugeno, IoTSwallow's nest is a place to produce hardened swallow birds' saliva. In making swallow nests must have criteria. Some of these criteria are the ideal walet room temperature is 26-29 degrees Celsius. Humidity also affects swallow's nest. Usually to overcome this there is a pool of water to hold water in the room. The water in the pool is used to regulate the humidity of the air. So it will be like a cave in general. Humidity levels from 70 to 90 degrees Celsius. At 0 Lux (total dark) light intensity is the intensity of light favored by Swallow for nesting. To be able to get the ideal temperature and humidity needed an automatic system to control temperature and humidity in real time. With the automation system that is set through a microcontroller using the Fuzzy Sugeno method to produce water spin on the tap making it easier to control swallow nest space and temperature and humidity data sent to the database to facilitate monitoring of temperature and humidity from the website. The result is the use of a temperature and humidity control system using the Sugeno fuzzy method obtained results with 3 parameters namely temperature, humidity and light is 61.11%, while with 2 parameters namely temperature and humidity is 39.29% from 18x experiments. Keywords—Microcontroller, Arduino, Fuzzy Sugeno, IoT

PERANCANGAN APLIKASI PEMESANAN CATERING BERBASIS MOBILE ANDROID

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Mamay Syani ◽  
Nindi Werstantia
Keyword(s):  
Data Storage ◽  
Research Methodology ◽  
Positive Response ◽  
User Acceptance ◽  
Extreme Programming ◽  
Accurate Information ◽  
Acceptance Test ◽  
Android Application ◽  
Order Process ◽  
Food Packages

Ordering catering is an activity undertaken by customers to buy products in the form of food packages. In Cimahi Catering catering ordering process is done by customers by coming directly to the location or calling to Cimahi Catering. Based on interviews with the authors related parties, in the process of ordering catering there are some customers who complain about the order process is due to take time, energy and more costs. In the case of recording data ordering was deemed less effective because the data is still conventional. This is at risk of logging errors. As a solution of these problems the authors build an Application Ordering Catering Based Android Mobile to assist in the process of ordering catering by customers and the management of reservation data catering by the Cimahi Catering. Research methodology used is Extreme Programming method. In making this application the author uses android programming base and MySQL as the data storage. This application is made to efficiently time, effort and produce accurate information. The results of testing the built application has a performance that suits the needs of the user. Based on the results of User Acceptance Test get a positive response with 85% percentage. Keyword: Android, application, catering, mobile, ordering, uat

Perancangan Sistem Pengaturan Suhu Ruangan Otomatis Berbasis Mikrokontroler

2019 ◽  
Vol 8 (1) ◽  
pp. 95
Author(s):  
I Wayan Gede Partamayasa ◽  
I Ketut Gede Suhartana ◽  
I Wayan Supriana
Keyword(s):  
High Temperatures ◽  
Room Temperature ◽  
Network Communication ◽  
The Internet ◽  
Humidity Sensors ◽  
Temperature And Humidity ◽  
Communication Devices ◽  
Internet Network

A server room is a room that is used to store servers, network communication devices such as routers and switches, and other operational related devices. Server rooms that have high temperatures and humidity will affect the performance of all devices, so the temperature and humidity of the server room must be maintained so that the device is not easily damaged. So from that, the company needs to implement a standard to protect the performance of the devices stored in it. To overcome this problem a device was developed that can automatically control and monitor temperature and humidity. The system will be built using temperature and humidity sensors that are used to monitor the temperature of the room, the condition of the room temperature and humidity of the room will be displayed through a website that can be accessed through the internet network.

Однофотонное излучение одиночной квантовой точки CdTeSe/ZnS в ближнем инфракрасном диапазоне при комнатной температуре

2021 ◽  
Vol 47 (21) ◽  
pp. 3
Author(s):  
Siyue Jin ◽  
Xingsheng Xu
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Auger Recombination ◽  
Single Photon ◽  
Irradiation Time ◽  
Colloidal Quantum Dots ◽  
Single Quantum ◽  
Illumination Time ◽  
Single Quantum Dots ◽  
Single Quantum Dot

In this study, the photostability of a CdTeSe/ZnS colloidal single photon emitter with a wavelength of 800nm at room temperature was investigated. The second-order correlation function was much smaller than 0.1, which proved that the CdTeSe/ZnS single quantum dot at 800nm is a highly pure single-photon emitter. The effects of the irradiation time on the optical properties from single quantum dots were analyzed. As the illumination time increased, the emission of biexciton and multiexciton in the colloidal quantum dots increased, and the occurrence of Auger recombination increased.

scholarly journals Long-Term Vibration Monitoring of the Effects of Temperature and Humidity on PC Girders with and without Fly Ash considering ASR Deterioration

2017 ◽  
Vol 2017 ◽  
pp. 1-23
Author(s):  
Tuan Minh Ha ◽  
Saiji Fukada ◽  
Kazuyuki Torii
Keyword(s):  
Fly Ash ◽  
Prestressed Concrete ◽  
Weather Conditions ◽  
Element Model ◽  
Vibration Monitoring ◽  
Mode Shapes ◽  
Numerical Verification ◽  
Evaluation Procedures ◽  
Temperature And Humidity ◽  
Vibration Responses

Structural responses have been used as inputs in the evaluation procedures of civil structures for years. Apart from the degradation of a structure itself, changes in the environmental conditions affect its characteristics. For adequate maintenance, it is necessary to quantify the environment-induced changes and discriminate them from the effects due to damage. This study investigates the variation in the vibration responses of prestressed concrete (PC) girders, which were deteriorated because of the alkali–silica reaction (ASR), concerning ambient temperature and humidity. Three PC girders were exposed to outdoor weather conditions outside the laboratory, one of which had a selected amount of fly ash in its mixture to mitigate the ASR. The girders were periodically vibration tested for one and a half years. It was found that when the temperature and humidity increased, the frequencies and damping ratios decreased in proportion. No apparent variation in the mode shapes could be identified. A finite element model was proposed for numerical verification, the results of which were in good agreement with the measured changes in the natural frequencies. Moreover, the different dynamic performances of the three specimens indicated that the fly ash significantly affected the vibrations of the PC girders under ASR deterioration.

Electron Microscopy Study of Submicron Size Antiferromagnetic KMnF3 Nanoparticles and Their Self-assembly

2003 ◽  
Vol 775 ◽  
Author(s):  
Jeffrey Anderson ◽  
Rubi Garcia ◽  
Weilie L. Zhou
Keyword(s):  
Electron Microscopy ◽  
Self Assembly ◽  
Room Temperature ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Submicron Particles ◽  
Spherical Particles ◽  
Large Area ◽  
Homogeneous Crystal ◽  
Field Emission Electron Microscopy

AbstractSubmicron KMnF3 cubic and spherical nanoparticles were synthesized using the reverse micelle method. The nanostructures of the nanocrystals were studied by field emission electron microscopy and transmission electron microscopy. KMnF3 nanocrystals synthesized at room temperature started with cubic submicron particles (∼100 nm) and consisted of KMnF3 nanocrystallites (10-15 nm). As the reaction continued, the nanocrystals fused together and transformed into perfect cubic nanocrystals. Spherical beads composed of KMnF3 nanocrystallites were observed at low temperature synthesis. As the reaction continued, the spherical particles grew larger, however, no characteristic cubic shape of KMnF3 nanoparticles were observed. Even as they grew larger, there was no evidence of homogeneous crystal morphology as seen in the room temperature samples. Cubic shape KMnF3 nanocrystals were self-assembled into large area self-assembling patterns.

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