scholarly journals DEVELOPING AN AUTOMATED CONTROLLER FOR A SOLAR HEATING SYSTEM

2021 ◽  
Vol 21 (3) ◽  
pp. 83-89
Author(s):  
E. Amirgaliyev ◽  
◽  
M. Kunelbayev ◽  
T. Sundetov
Keyword(s):  
Data Processing ◽  
Real Time ◽  
Temperature Sensor ◽  
Control Algorithm ◽  
Heating System ◽  
Temperature Sensors ◽  
Solar Heating ◽  
Real Time Clock ◽  
Control And Monitoring System ◽  
Clock Module

The paper discusses the development of an automated controller for a Mojo v3-based solar heating system. The developed system operates using 6 sensors (DS18B20 Dallas) expanding the platform's applicability. An in-tegrated system allows controlling temperature and heat using Dallas sensors. The control and monitoring system is implemented in the VHDL and VERILOG languages. A control algorithm has been developed that activates libraries and constants, a real-time clock module, temperature sensors, and server connection. When the server connection is established, the temperature sensor readings are recorded and saved in the XML file in the Ethernet module. XML facilitates data processing by automatically or manually interpreting spreadsheet programs.

scholarly journals Rancang Bangun Alat Pengukur Suhu Tanah Secara Multi Lateral Berbasis Mikrokontroler Untuk Pertumbuhan Benih Tanaman

Jurnal MIPA ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 97
Author(s):  
Verna Albert Suoth ◽  
Handy I.R Mosey
Keyword(s):  
Data Base ◽  
Real Time ◽  
Personal Computer ◽  
Temperature Sensor ◽  
Time Distribution ◽  
Agricultural Land ◽  
Data Acquisition System ◽  
Temperature Sensors ◽  
Measuring Device ◽  
Temperature Requirements

Suhu merupakan sifat tanah yang amat penting. Kebutuhan suhu tanah bagi tanaman berbeda-beda bergantung kepada jenis tanaman dan juga tingkat pertumbuhannya. Oleh karena itu telah dikembangkan sebuh alat pengukur suhu yang dapat mengontrol  suhu tanah secara update dan real time sebaran suhu bawah permukaan. Alat yang dibangun ini terdapat 20 sensor suhu yang menggunakan IC LM35 yang membentuk sebuah elettroda. Sensor suhu ini dihubungkan ke sistem pengkondisi sinyal. Sinyal ini kemudian proses ke sistem akusisi data dengan menggunakan mikrokontroler AVR ATmega8 yang berfungsi untuk akuisisi data. Sistem yang bangun terintegrasi dengan personal computer (PC), yang berfungsi kontrol dan data base. Alat ini telah aplikasikan pada lahan pertanian dan data yang telah diperoleh, digunakan sebagai parameter fisis dalam memantau suhu tanah baik sebelum penanaman bahkan sampai tanaman bertumbuh.Temperature is an important soil properties. Soil temperature requirements for plants varies depending on the type of plant and its growth rate also. Therefore has developed a temperature measuring device that can control the temperature of the soil in the update and real time distribution of subsurface temperature. This tool was built there were 20 temperature sensors that use the IC LM35 which form an electrode. This temperature sensor is connected to the signal conditioning. The signals are processed by the data acquisition system using microcontroller AVR ATmega8. The system was built with integrated personal computer (PC), which serves to control and data base. This tool has been applied on agricultural land and the data that has been obtained is used as a physical parameter in monitoring the temperature of the soil well before planting even until the plants grow.

scholarly journals Wearable smart device incorporating real-time clock module and alcohol sensor

2017 ◽  
Vol 2 (2) ◽  
pp. 328
Author(s):  
David Ng
Keyword(s):  
Real Time ◽  
Normal Operation ◽  
Smart Device ◽  
Display Time ◽  
Alcohol Content ◽  
Real Time Clock ◽  
Alcohol Sensor ◽  
3D Printed ◽  
Correct Date ◽  
Clock Module

<p>In this work, we designed and built a wearable device with battery-saving and alcohol-sensing functions. The motivation for this device was to deliver a proof-of-concept wearable and functional device which alerts the user of possible alcohol breath level above a threshold limit and can be worn for an extended time due to battery saving features. It was built using a combination of Arduino electronics and sensors, and encased in 3D-printed ABS bracelet. A 4-digit 7-segment LED display on board is used to display time which is tracked using a real-time clock module. A 3-axis accelerometer determines the orientation of the device and activates the display only when it is held in a specific orientation by the user. An example is when two axes are normal to the gravitational pull while a single axis is in line with gravity to simulate users raising their arm parallel to the ground. A slight tolerance in the setting ensures that the threshold for activation is not overly strict. This will ensure that the LED display is activated over a narrow range of orientations. The alcohol sensor is sensitive to alcohol content in the air. The threshold for detection can be changed and calibrated to the user specific needs. The alcohol sensor is slightly sensitive to humidity and very sensitive to alcohol. It has been tested with ethanol, wine and beer with 95%, 12.5% and 4.55% alcohol content, respectively. Because the alcohol sensor works by using a resistor that continuously pulls current and detects changes in resistivity due to adsorption of alcohol molecules, it consumes a lot of power when turned on continuously. In order to conserve power, the sensor can be activated only when the device is oriented in a specific position or when the user pushes a button. An Arduino Nano board is used to reduce the overall size of the device. It is powered using an external 5V battery via a mini-USB connector. In order to reduce the number of IO pins used, the RTC, LED and accelerometer were configured to use I2C interface connections. A default SCL clock speed of 100 kHz is used and the component IOs are connected to a common SDA line which terminates at one analog pin. In normal operation, the RTC is configured to read time continuously at one second interval. It is preprogramed with the correct date and time prior to operation of the device.</p>

scholarly journals Design and Implementation of MOAT (Moth Attractor Technology): Glue-Tube-Light System with RTC (Real Time Clock) Module

2018 ◽  
Vol 2 (2) ◽  
pp. 57-63
Author(s):  
Yusuf Aji Wicaksana ◽  
Dani Prasetyo ◽  
Himmatul Ulya Alfartri Syachofina ◽  
Eka Larasati Oktaviani ◽  
Retno Wulandari
Keyword(s):  
Real Time ◽  
Design And Implementation ◽  
Light System ◽  
Real Time Clock ◽  
Clock Module

scholarly journals Alat Monitoring Radiasi Matahari di Pulau Batam

2020 ◽  
Vol 4 (1) ◽  
pp. 7-9
Author(s):  
Muhammad Prihadi Eko Wahyudi ◽  
Faiz Al Qodri ◽  
Maryani Septiana ◽  
Qoriatul Fitriyah
Keyword(s):  
Real Time ◽  
Lookup Table ◽  
Real Time Clock ◽  
Pv Cell ◽  
Clock Module

Photovoltaics (PV) cell adalah sebuah elemen yang dapat melakukan konversi energi dari radiasi akibat panas matahari menjadi energi listrik dengan prinsip semikonduktor. Tegangan dan arus listrik yang dihasilkan sel surya dipengaruhi oleh tingkat intensitas radiasi cahaya matahari dan temperatur udara lingkungan. Alat yang dibuat dalam penelitian ini didesain dengan menggunakan metode lookup table yang dibuat dengan memakai 2 motor sebagai penggerak sumbu x dan y dalam menentukan koordinat dari posisi matahari yang digunakan sebagai penentu intensitas radiasi matahari di Pulau Batam. Perangkat ini juga terintegrasi dengan waktu menggunakan real time clock module.

scholarly journals A square root information filter for multi-GNSS real-time precise clock estimation

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Xiang Zuo ◽  
Xinyuan Jiang ◽  
Pan Li ◽  
Jungang Wang ◽  
Maorong Ge ◽  
...  
Keyword(s):  
Data Processing ◽  
Real Time ◽  
Computational Efficiency ◽  
High Rate ◽  
Control Procedure ◽  
Square Root ◽  
Essential Information ◽  
Real Time Clock ◽  
Information Filter ◽  
Clock Estimation

AbstractReal-time satellite orbit and clock estimations are the prerequisite for Global Navigation Satellite System (GNSS) real-time precise positioning services. To meet the high-rate update requirement of satellite clock corrections, the computational efficiency is a key factor and a challenge due to the rapid development of multi-GNSS constellations. The Square Root Information Filter (SRIF) is widely used in real-time GNSS data processing thanks to its high numerical stability and computational efficiency. In real-time clock estimation, the outlier detection and elimination are critical to guarantee the precision and stability of the product but could be time-consuming. In this study, we developed a new quality control procedure including the three standard steps: i.e., detection, identification, and adaption, for real-time data processing of huge GNSS networks. Effort is made to improve the computational efficiency by optimizing the algorithm to provide only the essential information required in the processing, so that it can be applied in real-time and high-rate estimation of satellite clocks. The processing procedure is implemented in the PANDA (Positioning and Navigation Data Analyst) software package and evaluated in the operational generation of real-time GNSS orbit and clock products. We demonstrated that the new algorithm can efficiently eliminate outliers, and a clock precision of 0.06 ns, 0.24 ns, 0.06 ns, and 0.11 ns can be achieved for the GPS, GLONASS, Galileo, and BDS-2 IGSO/MEO satellites, respectively. The computation time per epoch is about 2 to 3 s depending on the number of existing outliers. Overall, the algorithm can satisfy the IGS real-time clock estimation in terms of both the computational efficiency and product quality.

HEAT LOSS ANALYSIS AND OPTIMIZATION OF HOUSEHOLD SOLAR HEATING SYSTEM

2019 ◽  
Vol 50 (7) ◽  
pp. 659-670 ◽  
Author(s):  
Jieyuan Yang ◽  
Jinping Li ◽  
Rong Feng
Keyword(s):  
Heat Loss ◽  
Heating System ◽  
Solar Heating ◽  
Loss Analysis
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