scholarly journals Perancangan Sistem Telemetri Untuk Mengukur Intensitas Cahaya Berbasis Sensor Light Dependent Resistor Dan Arduino Uno

Author(s):  
Arief Rahmadiansyah ◽  
Ele Orlanda ◽  
Merti Wijaya ◽  
Hanif Wigung Nugroho ◽  
Rifki Firmansyah

Abstract Light is a propagation of electromagnetic waves that spread all directions that play an important role in everyday life because it is an absolute part of life and without the light of life on earth can not develop. The amount of light illuminance is necessary to know because basically humans require adequate lighting. The instrument for measuring light illuminance is a luxmeter or light meter. However, this gauge is difficult to obtain and the price of the tool is expensive so that it can only be found in certain school laboratories or colleges. While telemetry is the process of measuring the parameters of an object (objects, space, natural conditions) that the measurement results are transmitted to other places via data transmission without or using a cable (wireless). The purpose of this study is to measure, to know the conditions of light intensity. This research uses experimental model of light intensity measurement using independent measuring instrument with combination of LDR and Arduino uno consisting of transmitter and receiver. In the transmitter there are LDR, Arduino Uno, and RF Module Board 433 MHz components, while the receiver consists of Arduino Uno, laptop, and RF Module Board 433 MHz. In this design is also done a variety of testing tools using distance variables. Overall this tool is working well. The system has successfully delivered telemetry measurement results with a range of conditions without a wall barrier with a maximum distance of <28 m. And conditions there are obstacles diding with a maximum distance <13.2.

Author(s):  
Hanif Wigung Nugroho ◽  
Arief Rahmadiansyah

Light is the velocity of electromagnetic waves that spread all directions that play an important role in everyday life because it is an absolute part of life and without the light of life on earth can not develop. The amount of light illuminance is necessary to know because basically humans require adequate lighting. The instrument for measuring light illuminance is a luxmeter or light meter. However, this gauge is difficult to obtain and the price of the tool is expensive so that it can only be found in certain school laboratories or colleges. While telemetry is the process of measuring the parameters of an object (objects, space, natural conditions) that the measurement results are transmitted to other places via data transmission without or using a cable (wireless). The purpose of this study is to measure, to know the conditions of light intensity. This research uses experimental model of light intensity measurement using independent measuring instrument with combination of LDR and Arduino uno consisting of transmitter and receiver. In the transmitter there are LDR, Arduino Uno, and RF Module Board 433 MHz components, while the receiver consists of Arduino Uno, laptop, and RF Module Board 433 MHz. In this design is also done a variety of testing tools using distance variables. Overall this tool is working well. The system has successfully delivered telemetry measurement results with a range of conditions without a wall barrier with a maximum distance of <28 m. And conditions there are obstacles diding with a maximum distance <13.2.


eLEKTRIKA ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 26
Author(s):  
D.R Ningtias ◽  
M.P Sudarman ◽  
I.T Harsoyo

<p><em>One form of physiotherapy is utilizing heat for recovery. Heat therapy can open blood vessels wider, thereby increasing blood flow and supply of oxygen and nutrients to reduce pain in joints, muscles, ligaments and injured tanks. To help health services in the field of physiotherapy the author modifies the therapeutic pillow with Arduino Uno and DS18B20 based as a temperature sensor, LCD as a temperature viewer and a timer and button that functions to choose how long it takes to do therapy. The design of therapeutic pillows is divided into two, namely hardware and software design, hardware design including power supply, a series of drivers and system scenarios. While the software design of this tool uses the Arduino and proteus applications as software. The result of the percentage error at the TP2 measurement is 0.02%. The measurement results on TP3 when the tool is off or off, then the circuit does not get a voltage while when the device is turned on or on the driver circuit gets a voltage of 1.4 Volt. After making the process of making, testing, testing tools and data collection, the author has succeeded in designing a heat therapy pillow using a temperature sensor and ARDUINO UNO based timer controller that can provide convenience when going to heat therapy because it is equipped with an automatically controlled temperature sensor and controller timer. by DS1820 temperature sensor. A therapeutic pillow based on Arduino with 10 minutes of therapy results in a </em><em>temperature of 41</em><em>°C.</em></p>


2019 ◽  
Vol 26 (1) ◽  
pp. 95-106 ◽  
Author(s):  
Krzysztof Bronk ◽  
Patryk Koncicki ◽  
Adam Lipka ◽  
Dominik Rutkowski ◽  
Błażej Wereszko

Abstract In the paper, the measurement and simulation results of the VDES (VHF Data Exchange System) terrestrial component are discussed. It is anticipated that VDES will be one of the major solutions for maritime communications in the VHF band and its performance will be sufficient to fulfill the requirements of the e-navigation applications. The process of the VDES standardization (ITU R, IALA) has not been officially completed yet, but substantial amount of technical information about the future system’s terrestrial component (VDE-TER) is already available. The paper is divided into three general parts: (a) theoretical presentation of the system’s physical layer and the radio channels applicable to VDES, (b) simulation results (BER, BLER, channel delay between two propagation paths and its influence on bit rates) and (c) measurement results (useful ranges, BER). It turned out that in real maritime conditions, the VDES system can offer ranges between 25 and 38 km for the configurations assumed during the measurement campaign. Those results are generally compliant with the theoretical data in the line-of-sight conditions. In the NLOS scenarios, where fading becomes the dominant phenomenon, the discrepancies between the measurements and the theoretical results were more significant. The obtained results confirmed that VDES provides a large coding gain, which significantly improves the performance of data transmission and increases the bit rate compared to the existing maritime radiocommunication solutions. It should be noted that the results presented in the article were used by the IALA while developing the current version of the VDES specification.


2008 ◽  
pp. 1349-1360
Author(s):  
Göran Pulkkis ◽  
Kaj Grahn ◽  
Jonny Karlsson

In a wired local-area network (LAN), the network ports and cables are mostly contained inside a building. Therefore, a hacker must defeat physical security measures, such as security personnel, identity cards, and door locks, to be able to physically access the LAN. However, the penetration capability of electromagnetic waves exposes the data-transmission medium of a wireless LAN (WLAN) to potential intruders (Potter & Fleck, 2003).


2015 ◽  
Vol 14 (2) ◽  
pp. 75
Author(s):  
I G.M Sugiri Arnawa ◽  
I . G. A. Raka AGung

The prototype of this dam water level monitoring function to provide information about the dam water level through social media twitter and speakers. Information on twitter social media can be found by following the twitter account of this tool . The prototype consists of a microcontroller Arduino Uno , HC - SR04 sensor , LCD , WTV020SD and the Ethernet Shield . Sensor HC - SR04 , read the value of the dam water level based on emission and reflection of ultrasonic waves . Arduino Uno microcontroller will process and display the sensor input from HC - SR04 form of dam water level on the LCD and sent via ethernet shield to social media twitter . WTV020SD serves to ring the speaker on the water level 10 cm , 20 cm , 30 cm and 40 cm . The sound emitted is the normal condition of the dam , flood alert , flood alert and flood . Water level measurement results on LCD , manual measurement and display on twitter social media have gotten the same results .


2013 ◽  
Vol 47 (6) ◽  
pp. 42-51
Author(s):  
Arne Sieber ◽  
Andreas Schuster ◽  
Sebastian Reif ◽  
Dennis Madden ◽  
Peter Enoksson

AbstractRebreather divers use LED-based head-up displays (HUD) as a primary display and warning device for the partial pressure of O2 in the breathing loop. Such devices are usually mounted on the mouthpiece of the rebreather in the field of vision of the diver. LED-based HUDs are simple devices and can be designed so that they are easy to understand but have limited information content. Few alphanumeric or graphical screen-based HUDs have been developed in the past. Connecting such a device to a rebreather requires cable links, which divers dislike, and increases the risk of entanglement. State-of-the-art wireless data transmission uses ultrasonic waves or low-frequency electromagnetic waves; the former is not silent, and the latter achieves only very low data transmission rates of a few bytes per second and does not meet the antimagnetic standards required by military divers. The present paper describes a novel HUD system that incorporates a simple LED-based primary HUD along with an advanced secondary head-up diving computer with a micro organic LED screen. An optical infrared data transmission system is used to transmit all rebreather relevant data from the primary to the secondary device. One prototype of the system was manufactured and successfully tested in the laboratory according to relevant European standards as well as during several dives in fresh and sea water.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Xiaoxing Zhang ◽  
Yefei Han ◽  
Wei Li ◽  
Xuetao Duan

A rectangular planar spiral antenna sensor was designed for detecting the partial discharge in gas insulation substations (GIS). It can expediently receive electromagnetic waves leaked from basin-type insulators and can effectively suppress low frequency electromagnetic interference from the surrounding environment. Certain effective techniques such as rectangular spiral structure, bow-tie loading, and back cavity structure optimization during the antenna design process can miniaturize antenna size and optimize voltage standing wave ratio (VSWR) characteristics. Model calculation and experimental data measured in the laboratory show that the antenna possesses a good radiating performance and a multiband property when working in the ultrahigh frequency (UHF) band. A comparative study between characteristics of the designed antenna and the existing quasi-TEM horn antenna was made. Based on the GIS defect simulation equipment in the laboratory, partial discharge signals were detected by the designed antenna, the available quasi-TEM horn antenna, and the microstrip patch antenna, and the measurement results were compared.


Repositor ◽  
2020 ◽  
Vol 2 (9) ◽  
Author(s):  
Muhammad Gofur ◽  
Diah Risqiwati ◽  
Vinna Rahmayanti Setyaning Nastiti

AbstrakPeternakan sapi merupakan faktor yang sangat penting dalam memenuhi kebutuhan manusia akan pangan, dalam peternakan sapi perah banyak sekali manfaat dan keuntungan yang didapatkan seperti susu dan daging. Salah satu contoh yang membahayakan bagi sapi dan peternak adalah menyebarnya paparan gas amonia bagi lingkungan area kandang sapi perah dan rumah peternak. Gas amonia sendiri dihasilkan dari kotoran sapi yang terlalu lama mengendap dalam sebuah ruangan, jika kotoran sapi tidak cepat untuk dibersihkan maka efek yang ditimbulkan dapat mencemari lingkungan dan berdampak timbulnya penyakit yang bisa menyerang manusia dan sapi perah. Dengan adanya kemajuan teknologi dibuat lah sebuah model pemantauan gas amonia, gas monoksida dan suhu kelembaban dengan menggunakan perangkat Arduino Uno, sensor MQ-7, sensor MQ-135 dan DHT11 pada area kandang sapi perah dengan menggunakan MQTT dan algoritma rule based system. Alat ini juga mempunya aksi buzzer dan blower, fungsi buzzer sendiri sebagai peringatan jika kondisi area kandang sudah terpapar oleh gas amonia dan monoksida maka buzzer akan berbunyi. Sedangkan blower gunanya sebagai penetralisir udara agar gas yang berbahaya tidak sampai memasuki ruangan rumah peternak dan menstabilkan suhu kelembaban area kandang sapi perah. Hasil pengujian rssi menunjukakan bahwa jarak berpengaruh dalam pengiriman data semakin jauh jarak akan mempengaruh sinyal dan delay waktu akan terjadi dalam pengiriman data.  Abstract               Cattle farming is a very important factor in meeting human needs for food, in dairy farming there are many benefits and benefits such as milk and meat. One dangerous example for cattle and breeders is the widespread exposure of ammonia gas to the environment of dairy cages and farmer homes. Ammonia gas itself is produced from cow dung that settles too long in a room, if cow dung is not fast to be cleaned then the effects can pollute the environment and have an impact on diseases that can attack humans and dairy cows. With the advancement of technology, a monitoring model of ammonia, gas monoxide and temperature of humidity was made using Arduino Uno devices, MQ-7 sensors, MQ-135 and DHT11 sensors in the dairy cow enclosure area using MQTT and rule based system algorithms. This tool also has buzzer and blower action, the buzzer function itself as a warning if the condition of the enclosure area has been exposed to ammonia and monoxide gas then the buzzer will sound. While the blower is used as an air neutralizer so that harmful gases do not enter the farmer's room and stabilize the humidity temperature of the dairy cow enclosure area. The RSSI test results indicate that the distance influencing the data transmission the further the distance will affect the signal and the delay in time will occur in the data transmission.


2019 ◽  
Vol 2 (2) ◽  
pp. 53
Author(s):  
Hamzah Hamzah ◽  
Moh. Toifur ◽  
Ishafit Ishafit

Abstrak- The study about fill factor and efficiency solar cell have been done with an automatic drive machine that rotates the surface of the solar cell following the movement of the light source from 0° up to 90° compared without automatic drive.  The test results are then implemented to determine the fill factor and efficiency in variations in light intensity. In this study, polycrystalline solar cell type (99 × 69) mm2, the Philips 100W/220V light bulb at a distance of 18 cm and the driving machine is controlled through an Arduino Uno R3 microcontroller. Data acquisition of current and voltage is carried out with the help of DCP-BTA current and VP-BTA voltage probes that are connected to the mini labquest transducer and displayed to a computer through loggerpro software. The result show that it has been successfully designed an automatic driver of a solar panel (99 × 69) mm2  with an Arduino Uno R3 microcontroller and a logger pro software as data acquisition software. The using solar cell automatically driven can improve the accuracy and precision of current and voltage readings so the fill factor might be increased up to 10% while the efficiency of solar cells does not change. Variations in light intensity can increase the fill factor and efficiency of solar cells. Fill factor and efficiency have an exponentially relationship to light intensity.


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