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1
Cabaya, Angelica A., Rachel Grace B. Rizardo, Clesphsyche April O. Magno, et al. "BATTERY-POWERED DEVICE FOR MONITORING PHYSICAL DISTANCING THROUGH WIRELESS TECHNOLOGY." GUILD OF EDUCATORS IN TESOL INTERNATIONAL RESEARCH JOURNAL 1, no. 2 (2023): 79–86. https://doi.org/10.5281/zenodo.8031043.
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One method for preventing the spread of the coronavirus and other contagious diseases is through social distancing. Therefore, creating a tool to measure and quickly discover the precise distance is necessary. In order to prevent physical contact between individuals, this study aimed to detects individuals’ physical distance, through an inaugurated battery-powered device that monitors physical distance through wireless technology. Specifically, in public or crowded areas, to lessen the spread of the virus. This study focuses on detecting people’s physical distance in the region of interest utilizing an Ultrasonic and VL53L0X sensors and determining the significant difference between the two sensors in monitoring physical distance. This study employs an applied experimental research design. The efficiency of both sensors in measuring physical distance was evaluated through analysis. The Ultrasonic and VL53L0X sensors underwent 15 tests. Furthermore, the researchers effectuated a t-test to determine the significant difference between the two sensors. Data gathered revealed that the sensors' combined mean in terms of measuring physical distance indicates that the ultrasonic sensor performed better than VL53L0X, measuring 134.7 cm, notwithstanding 99.8 cm for the VL53L0X sensor. Complementary to this, the results of the t-test show that the VL53L0X sensor and Ultrasonic sensor have a significant difference in terms of distance precision.
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Diana, Gita Okta, and Wildian Wildian. "Rancang Bangun Sistem Pendeteksian Dini Tanah Longsor Berbasis SMS." Jurnal Fisika Unand 8, no. 1 (2019): 20–25. http://dx.doi.org/10.25077/jfu.8.1.20-25.2019.
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Suatu sistem peringatan dini tanah longsor berbasis SMS telah dirancang-bangun untuk mendeteksi dan menginformasikan kepada masyarakat lokasi tanah longsor. Metode yang digunakan adalah metode penginderaan berat dengan sistem sensor terdiri dari sensor jarak VL53L00X (objek pantul berupa cermin) dan pegas (dengan panjang 9 cm, diameter 2 cm dan konstanta pegas 62,39 N/m). Ketika terjadi pergeseran tanah dalam arah bidang gelinciran, ujung atas pegas akan tertekan oleh gaya berat bidang tanah yang bergeser sehingga jarak objek pantul dengan sensor semakin dekat. Akibatnya, jarak yang dideteksi sensor semakin besar. Hasil uji menunjukkan bahwa prototype mampu mendeteksi pergeseran tanah permukaan dalam rentang 1 hingga 7 cm. Selain itu, sistem ini juga mampu mengirim SMS untuk status siaga II (pergeseran tanah sebesar 2,39 cm), siaga III (3,17 cm), dan bahaya (4,11 cm; bunyi alarm).Kata kunci : sistem peringatan dini, tanah longsor, sensor jarak VL53L0X, pegas, SMS
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Maria, Putut Son, and Elva Susianti. "Uji Kinerja Surface Scanner 3D Menggunakan Sensor VL53L0X dan Mikrokontroler ATMEGA8535." Jurnal Teknik Elektro 11, no. 1 (2019): 1–8. http://dx.doi.org/10.15294/jte.v11i1.18821.
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Digital data recording of the geometry of 3-dimensional objects require a 3D scanner tool which are mostly using an imagery sensor. However there is hardly used information of scanned result, named color. Imagery sensor requires high spesification processing unit as capable as a personal computer for data acquisition processing. This research aims to build a 3D surface scanner using a time of flight laser ranging sensor and to develop its simple function to become more valuable device. Using point to point displacement method, the sensor measures the distance between the outermost point of the object and the sensor surface perpendicularly, once when one measurement is done then the object to be rotated along with the rotary table. The prototype was built using the VL53L0X sensor and ATMEGA8535 microcontroller as a motor controller for rotary table and vertical axis. Scanned data is sent from the microcontroller to the computer to be visualized in real time. The results show that the VL53L0X sensor is suitable for scanning convex objects but it is not capable to handle objects with multiple cavities.
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Komarizadehasl, Seyedmilad, Behnam Mobaraki, Haiying Ma, Jose-Antonio Lozano-Galant, and Jose Turmo. "Low-Cost Sensors Accuracy Study and Enhancement Strategy." Applied Sciences 12, no. 6 (2022): 3186. http://dx.doi.org/10.3390/app12063186.
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Today, low-cost sensors in various civil engineering sectors are gaining the attention of researchers due to their reduced production cost and their applicability to multiple nodes. Low-cost sensors also have the advantage of easily connecting to low-cost microcontrollers such as Arduino. A low-cost, reliable acquisition system based on Arduino technology can further reduce the price of data acquisition and monitoring, which can make long-term monitoring possible. This paper introduces a wireless Internet-based low-cost data acquisition system consisting of Raspberry Pi and several Arduinos as signal conditioners. This study investigates the beneficial impact of similar sensor combinations, aiming to improve the overall accuracy of several sensors with an unknown accuracy range. The paper then describes an experiment that gives valuable information about the standard deviation, distribution functions, and error level of various individual low-cost sensors under different environmental circumstances. Unfortunately, these data are usually missing and sometimes assumed in numerical studies targeting the development of structural system identification methods. A measuring device consisting of a total of 75 contactless ranging sensors connected to two microcontrollers (Arduinos) was designed to study the similar sensor combination theory and present the standard deviation and distribution functions. The 75 sensors include: 25 units of HC-SR04 (analog), 25 units of VL53L0X, and 25 units of VL53L1X (digital).
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Riyanto, Joni, and Asep Wasid. "PERANCANGAN ALAT BANTU PARKIR MOBIL BERBASIS ESP32-CAM DAN SENSOR JARAK VL53L0X MENGGUNAKAN VLC." Jurnal Informatika dan Komputasi: Media Bahasan, Analisa dan Aplikasi 17, no. 1 (2023): 1–5. https://doi.org/10.56956/jiki.v17i1.173.
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Semakin pesatnya perkembangan teknologi, khusunya teknologi sistem keamanan dan kenyamanan salah satunya adalah alat ukur monitoring parkir mobil mundur yang diaplikasikan pada mobil untuk membantu pengendara melihat parkir mundur dengan peringatan dini ketika mobil bergerak. Pada saat ini mobil keluaran lama tidak memiliki alat bantu parkir dan alat bantu parkir yang dijual dipasaran saat ini harganya relatif mahal. Penelitian ini bertujuan untuk membuat alat yang dapat mempermudah pengemudi terutama pada mobil keluaran lama yang tidak terdapat alat bantu parkir mundur.Pada alat ini untuk mempermudah dalam memarkir kendaraan dengan mengetahui jarak bagian belakang terhadap suatu benda atau penghalang menggunakan sensor jarak VL530LX saat mobil berada dalam posisi parkir mundur. Sensor ini mampu mendeteksi adanya penghalang dan akan menampilakan jaraknya melalui Oled serta Buzzer berupa bunyi. ESP32-CAM akan menangkap citra keadaan dibelakan mobil dan menampilkannya melalui aplikasi VLC sehingga dapat diketahui jarak antara penghalang dengan mobil agar benturan dapat dihindari.
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Wijaya, Achmad Purnomo, Achmad Purnomo Wijaya, Niam Tamami, and Hary Oktavianto. "Surface 3D Scanner Using Time of Flight Ranging Sensor with Cylindrical Coordinate System." Journal of Mechanical Engineering and Mechatronics 7, no. 1 (2022): 35. http://dx.doi.org/10.33021/jmem.v7i1.1477.
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<p class="TTPParagraphothers">3D scanner that uses image sensors requires the role of a computer that includes a data generator, data acquisition, and visual display. In a simply system, it can be designed the sensory system uses non-imagery sensor so the role of the data generator can be handled by the microcontroller. This research aims to make a simple 3D scanner using inexpensive non-imagery Time of Flight VL53L0X sensor and data processing can be processed directly by the microcontroller. The results of sensor distance measurements are processed on the microcontroller and desktop application. The distance and angle values are converted into Cartesian coordinate using cylindrical coordinate system. The scan results of the cubes, prisms and cylinder are similar with the reference object, but the results of the pyramid test at the top cannot be scanned properly due to the narrow surface. The laser beam from the emitter cannot bounce back to the collector properly makes distance reading is inaccurate and causes error in the point cloud conversion. The comparison error between the side of the scan results and the reference object is between 2.54-39.8%. The surface of objects with bright color has a smaller error than those with dark color. The comparison error of the height of the scan results with the reference object is between 5-32%. The angle of the emitter exclusion cone and the collector exclusion cone sensor affects the error at the side and height of the scan results.</p>
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Huang, Peng, Bing Li, Weimin Li, Yi Liao, and Donglin Su. "Investigation into Electromagnetic Compatibility Conducted Susceptibility of a Laser Ranging System." Photonics 10, no. 4 (2023): 397. http://dx.doi.org/10.3390/photonics10040397.
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Laser ranging systems are a widely used form of electronic system and are generally influenced by complex electromagnetic environments. We used a laser ranging system comprising the VL53L0X laser ranging sensor module as the research object and designed a sensitive experimental platform based on the laser ranging system. In this work, we have shown that electromagnetic interference signals can affect the performance of laser ranging systems. The electromagnetic interference signal was found to enter through the chip selection port of the laser sensor chip to affect the work of the laser sensor chip. Finally, we obtained the susceptibility threshold characteristics of the laser ranging system under the influence of different types of interference signal. This study deepens the understanding of the electromagnetic susceptibility mechanism of laser ranging systems and helps in the design of their electromagnetic compatibility.
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WAHYUDI, CELINE GABRIELLA, LUKAS LUKAS, and NOVA EKA BUDIYANTA. "Pupilometri Dinamis untuk Mengukur Respons Pupil sebagai Pendeteksi Dini Demensia pada Lansia." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 11, no. 3 (2023): 553. http://dx.doi.org/10.26760/elkomika.v11i3.553.
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ABSTRAKPupilometri merupakan metode pengukuran respons pupil terhadap stimulus. Kemampuan pupil mata dalam merespons cahaya diamati melalui pupillary light response (PLR). Penelitian mendapati PLR pasien demensia berbeda dengan pasien normal. Penelitian ini bertujuan merancang algoritma computer vision yang dapat mendeteksi pupil secara akurat, menampilkan respons pupil terhadap cahaya dalam bentuk grafik dan PLR pada sebuah aplikasi desktop, yang mengendalikan goggles berisi rangkaian kamera, pencahayaan, dan sensor jarak VL53L0X. Rekaman diproses dengan Local Binary Pattern (LBP) dan deteksi kontur untuk mendeteksi pupil. Data pengukuran diproses dan disimpan pada basis data lokal dan aplikasi web, sehingga tenaga medis dapat menentukan ada atau tidaknya gejala demensia pada pasien lansia. Tingkat ketelitian algoritma pengukuran pupil sebesar 73,33% yang didapatkan dari 30 kali pengujian.Kata kunci: computer vision, demensia, deteksi dini, pupillary light response, pupilometri ABSTRACTPupillometry is a method of measuring the pupil’s response towards stimulus. Pupil response to light is observed through pupillary light response (PLR). Research found that PLR values of patients suffering from dementia differ from that of normal patients. This study implements a computer vision algorithm that accurately detects the pupil, calculates, and shows its response towards light in graphs and PLR values on a desktop application which controls goggles that contain a camera, lighting setup, and the VL53L0X distance sensor. Video is processed using Local Binary Pattern (LBP) and contour detection to detect the pupil. Results are processed and saved in the local and web database, so experts can determine the presence of dementia symptoms in the elderly patient. The accuracy of the pupil detection algorithm is 73,33%, as obtained from 30 tests.Keywords: computer vision, dementia, early detection, pupillary light response, pupillometry
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Anggraini, Mita, and Wildian Wildian. "Rancang Bangun Sistem Peringatan Posisi Tubuh, Jarak Pandang, dan Durasi Kerja Di Depan Komputer." Jurnal Fisika Unand 12, no. 1 (2022): 49–55. http://dx.doi.org/10.25077/jfu.12.1.49-55.2023.
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Bekerja di depan komputer dalam waktu lama dapat menyebabkan gangguan kesehatan, baik fisik (mata dan punggung) maupun mental (stress dan kejenuhan). Alat yang dapat memberi peringatan terhadap posisi tubuh, jarak pandang, dan durasi kerja di depan komputer diperlukan agar risiko terjadinya gangguan kesehatan tersebut dapat diminimalisir. Pada penelitian ini telah dibuat sistem untuk mendeteksi jarak mata ke layar komputer menggunakan sensor jarak VL53L0X dan program untuk menghasilkan peringatan terhadap batas durasi kerja menggunakan perangkat-lunak Arduino IDE. Sensor MPU6050 digunakan untuk mendeteksi sudut tegak punggung. Modul DFPlayer Mini digunakan untuk memutar rekaman suara peringatan dan mengeluarkannya melalui speaker. Sumber tegangan yang digunakan untuk menjalankan sistem adalah Li-Po battery 3.7 V yang dapat diisi ulang melalui port charger dengan USB-mikro. Speaker akan mengeluarkan suara “perhatian, jarak mata terlalu dekat” ketika sensor mendeteksi jarak di bawah 40 cm dan mengeluarkan suara “waktunya istirahat” ketika durasi kerja telah mencapai 20 menit. Dua puluh detik kemudian speaker mengeluarkan suara peringatan “waktu istirahat telah selesai” dan pengguna dapat melanjutkan pekerjaannya. Speaker juga akan mengeluarkan suara “perbaiki posisi tegak punggung” apabila sudut tegak punggung di bawah 80°.
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Widayaka, Parama Diptya, Sirojul Hadi, Radimas Putra Muhammad Davi Labib, and Khairan Marzuki. "Komparasi Performansi Sensor sebagai Perangkat Pengukuran Ketinggian Air pada Sistem Notifikasi Banjir." Jurnal Bumigora Information Technology (BITe) 4, no. 1 (2022): 37–48. http://dx.doi.org/10.30812/bite.v4i1.1997.
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Banjir merupakan salah satu kejadian alamiah yang dapat terjadi kapan saja dan dapat mempengaruhi lingkungan. Faktor yang mempengaruhi banjir seperti contohnya kapasitas sungai yang tidak dapat mengakomodasi debit air dan menyebabkan air meluap ke area di sekitarnya. Indonesia merupakan salah satu negara di Asia Tenggara yang memiliki tingkat curah hujan yang tinggi dan sering terjadi banjir di beberapa daerah. Di beberapa tempat, banjir dapat meluap di jalan menuju pemukiman penduduk dan merugikan warga karena kurangnya informasi peringatan dan pemberitahuan tentang status ketinggian air sungai di daerah tersebut. Mengacu pada kasus ini, sistem peringatan banjir harus diterapkan untuk memberikan informasi tentang status ketinggian air kepada warga. Sensor harus diterapkan di dalam sistem peringatan dini untuk membaca dan mengukur ketinggian air di dalam sungai dan sistem akan mengirimkan pemberitahuan kepada warga tergantung pada ketinggian air sehingga warga dapat bersiap jika banjir terjadi kapan saja. Sistem yang menggunakan sensor jarak untuk mendeteksi ketinggian air dan mikrokontroler akan mengolah data ketinggian air menjadi beberapa tahap. Pada artikel ini, kami membandingkan kinerja sensor ketinggian air sebagai alat pengukur untuk memberikan akuisisi data ketinggian air terbaik. Hasilnya, sensor ultrasonic HC-SR04 menghasilkan akurasi sebesar 98,86% dan sensor LIDAR VL53L0X menghasilkan akurasi sebesar 88,95% pada proses pengukuran ketinggian air
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Arifianto, Teguh, Royyan Ghozali, Akhwan Akhwan, Sunardi Sunardi, and Willy Artha Wirawan. "SEMI-OTOMATIS SISTEM PENGEREMAN AUTONOMOUS VEHICLE MENGGUNAKAN PNEUMATIK SILINDER BERBASIS MIKROKOTROLLER." E-Link: Jurnal Teknik Elektro dan Informatika 16, no. 2 (2021): 1. http://dx.doi.org/10.30587/e-link.v16i2.3055.
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Autonomous vehicle merupakan moda transportasi masa depan yang menerapkan imageprocessing dan computer vision untuk pengenalan objek maupun kendali pada motor. Transportasiini dapat beroperasi sendiri sehingga kendaraan ini mengutamakan keamanan dalam berkendara.Jika pada kendaraan konvensional, sistem pengereman dikendalikan oleh pengendara. Namun, padakendaraan autonomous, sistem pengereman akan bekerja pada keadaan tertentu. Penelitian inimemodifikasi pengereman mekanik yang ada pada kendaraan autonomous agar dapat bekerja secarasemi otomatis dengan menggunakan aktuator pneumatik silinder berukuran 50x50mm. Selain itu,penelitian ini juga menggunakan sensor warna pixycam dan micro lidar vl53l0x sebagai input padamikrokontroller arduino. Input pada mikrokontroller arduino ini menjadi parameter perintah untukmengaktifkan selenoid valve agar udara bertekenan dapat menggerakkan pneumatik silinder. Hasildari penelitian ini adalah pemakaian silinder pneumatik berukuran 50x50mm dapat menarik pedalrem pada sarana autonomous dengan tangki udara bervolume 0,16m3 dan tekanan sebesar 6 bar.
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Alfino, Novri Rezky, and Aswardi Aswardi. "Rancang Bangun Alat Pemotong Kentang Berbentuk Stick Berbasis Mikrokontroller ATMega 328." JTEV (Jurnal Teknik Elektro dan Vokasional) 6, no. 2 (2020): 8. http://dx.doi.org/10.24036/jtev.v6i2.108023.
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Perkembangan zaman saat ini mempengaruhi berbagai aspek kehidupan masyarakat, yang mana gaya hidup di kalangan masyarakat saat ini yang lebih suka mengkonsumsi makanan siap saji. Terutama makanan siap saji dengan bahan dasar kentang yaitu stik kentang. Produk olahan stik kentang banyak dilakukan pada industri rumahan yang masih menggunakan alat produksi secara manual yang tidak dapat memproduksi dalam kapasitas banyak dan membutuhkan waktu yang lebih lama. Dari permasalahan tersebut penulis mencoba merancang sekaligus membuat alat pemotong kentang secara otomatis agar waktu yang dibutuhkan untuk memproduksi relatif lebih singkat dan kapasitas dari hasil yang didapatkan lebih maksimal. Alat ini dibuat dengan meneliti waktu yang dituhkan alat untuk memotong 0,25 Kg kentang. Dalam penelitian ini menggunakan sensor VL53L0X sebagai pendeteksi kentang, pneumatik untuk mendorong kentang ke arah mata pisau yang digerakkan oleh kompresor dengan mengatur tekanan udara menggunakan selenoid valve dan ATMega 328 sebagai pusat kontrol pada sistem kerja alat secara keseluruhan.
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Soekatri, Moesijanti Y. E., Hendra Marwazi, Andy Sambiono, Anastu Regita Nareswara, and Asa Azkatu R. "PENGEMBANGAN ALAT UKUR DIGITAL PANJANG DAN TINGGI BADAN ANAK BALITA UNTUK PENETAPAN STATUS GIZI ANAK DI DAERAH TERPENCIL WILAYAH BOGOR." Penelitian Gizi dan Makanan (The Journal of Nutrition and Food Research) 47, no. 2 (2025): 79–88. https://doi.org/10.36457/pgm.v47i2.800.
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Penentuan status gizi anak balita sangat bergantung pada hasil pengukuran yang akurat dan alat ukur yang digunakan. Penelitian ini bertujuan mengembangkan alat ukur panjang dan tinggi badan digital untuk anak balita yang mampu mengukur secara otomatis dengan ketelitian 0,1 cm dan menyimpan hasil hingga 100 data anak. Alat ini menggunakan sensor VL53L0X serta menampilkan status gizi secara langsung berdasarkan standar WHO 2006 (TB/U). Sebanyak 43 anak balita diukur menggunakan alat digital dan manual. Hasil pengujian menunjukkan nilai Technical Error of Measurement (TEM) dan reliability pada alat digital berada dalam kategori “almost perfect” (≥0,8), serupa dengan alat manual. Hasil uji Paired-Samples T-Test menunjukkan tidak terdapat perbedaan signifikan antara kedua alat (p>0,05). Alat ukur digital juga menunjukkan sensitivitas dan spesifisitas yang tinggi dalam mendeteksi status gizi. Oleh karena itu, alat ini dapat digunakan sebagai alternatif praktis dalam pengukuran antropometri di daerah terpencil.
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Li, Zhongxing, Caihong Zhang, Guojian Huang, and Haixia Ma. "Design of cable pipeline fault location device based on dynamic laser scanning." Journal of Physics: Conference Series 2366, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2366/1/012008.
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Abstract Aiming at the problem that some of the spare power cable pipelines without cable are damaged, and there is no effective detection equipment to detect the blocked state of the pipeline. This paper proposed a dynamic laser scanning method for obstacles in the pipeline, and designed a power pipeline fault positioning device. The infrared laser ranging technology based on time-of-flight is used to dynamically detect the distance between obstacles in the pipeline and the laser sensor, so as to detect the status and location of pipeline blockage. Taking ARM microcontroller as the core, equipped with VL53L0X laser module, the hardware design of the device was completed, and the software program was completed based on the Keil μVision5 IDE environment. The measurement and error analysis of obstacles of two different materials are carried out. The results show that the longer the measurement distance, the larger the error, and the highest measurement error is 1.47%, which fully meets the needs of engineering measurement.
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Audy and Zaini. "Analisis Kualitas Jagung Berbasis IoT dengan Penerapan Model SSD Mobilenet dan Histogram." Jurnal Nasional Teknik Elektro dan Teknologi Informasi 11, no. 2 (2022): 79–87. http://dx.doi.org/10.22146/jnteti.v11i2.3434.
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Jagung adalah salah satu bahan pangan pokok yang dikonsumsi oleh masyarakat Indonesia. Dalam beberapa tahun terakhir, bahan pertanian makin terancam, sehingga produktivitas pangan makin sedikit, termasuk jagung. Selain peningkatan produktivitas jagung, harus diperhatikan juga peningkatan kualitas produk jagung tersebut. Hal tersebut perlu dilakukan agar jagung memiliki keunggulan kompetitif. Oleh karena itu, dilakukan penelitian mengenai hal-hal yang memengaruhi kualitas jagung, baik dari segi pertumbuhan tanaman jagung maupun segi kualitas fisik jagung. Penelitian dibagi dalam dua aspek, yaitu aspek pertumbuhan jagung yang baik dengan pemantauan berbasis internet of things (IoT) dan identifikasi jagung dengan pengolahan citra digital menggunakan model SSD Mobilenet. Penelitian pada pertumbuhan jagung mengacu pada dua macam penyakit jagung (hawar daun dan tongkol busuk) dengan memantau suhu udara, kelembapan udara untuk penyakit hawar daun, dan jarak antar tanaman jagung untuk penyakit tongkol busuk. Penelitian dilakukan menggunakan mikrokontroler Arduino Uno, sensor DHT11, sensor VL53L0X, dan ESP8266 untuk akses data ke website dengan komunikasi IoT. Klasifikasi jagung dibagi atas tiga jenis, yaitu normal, berjamur, dan busuk. Identifikasi kualitas jagung dengan pengolahan citra digital dilakukan menggunakan TensorFlow dengan model SSD Mobilenet dengan pemrograman Python pada Raspberry Pi, sebagai opsi utama dalam klasifikasi kualitas fisik jagung, dan identifikasi warna RGB jagung menggunakan Delphi 7 pada komputer sebagai opsi tambahan dalam klasifikasi fisik jagung. Jumlah sampel yang digunakan adalah 180 sampel biji jagung dengan pengujian sepuluh kali pada masing-masing tipe kualitas jagung. Didapatkan hasil yaitu pengenalan kualitas jagung normal sembilan kali benar, pengenalan kualitas jagung berjamur tujuh kali benar, dan pengenalan kualitas jagung busuk enam kali benar, dengan tingkat akurasi 73,3 %.
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Morales-Ortega, David Alberto, Víctor Hugo Cambrón-Sandoval, Israel Ruiz-González, Hugo Luna-Soria, Juan Alfredo Hernández-Guerrero, and Genaro García-Guzmán. "Design of a Tension Infiltrometer with Automated Data Collection Using a Supervisory Control and Data Acquisition System." Sensors 23, no. 23 (2023): 9489. http://dx.doi.org/10.3390/s23239489.
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This study highlights the importance of water infiltration in hydrological basin management, emphasizing its role in water services, water quality regulation, and temporal patterns. To measure this crucial function, this study introduces a portable and user-friendly tension infiltrometer designed for easy assembly and data collection. The tension infiltrometer, based on the 2009 design by Spongrová and Kechavarzi, offers a comprehensive characterization of the soil properties related to water flow. It eliminates the influence of preferential flow, providing accurate data. Additionally, it accommodates changes in pore size distribution within the soil, which is crucial for understanding water movement. This study discusses the challenges associated with traditional infiltration measurement tools, like double-ring infiltrometers and single rings, which are not easily transported and can lead to inaccuracies. In response, the proposed infiltrometer simplifies data collection, making it accessible to a broader range of users. This study also explores the use of the VL53L0X distance sensor in the infiltrometer, providing an innovative solution for measuring the water column height. The system’s user interface allows real-time data collection and analysis, significantly reducing the processing time compared to that of the manual methods. Overall, this work demonstrates the potential for advancement in hydrological basin management using user-friendly instrumentation and automated data collection, paving the way for improved research and decision making in environmental services, conservation, and restoration efforts within these ecosystems.
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Putri, Renny Eka, J. P. Geraldo, and Andasuryani Andasuryani. "Application of Time-of-Flight (ToF) Laser Sensor for Real-Time Cutting Width Monitoring System on Mini Combine Harvester." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 12, no. 4 (2023): 840. http://dx.doi.org/10.23960/jtep-l.v12i4.840-851.
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Yield monitoring is a precision farming technology that monitors crop yields in real-time. The cutting width is one of the variables gathered by yield monitoring. The cutting width is measured using the sensor by subtracting the width of the header from a distance reading from the sensor to the rice installed on the left and right sides of the mini combine harvester header. This research aims to design a cutting width measurement system using the VL53L1X ToF sensor on a mini combine harvester. The VL53L1X ToF Sensor is used as a distance sensor, followed by an ESP-32 microcontroller and a WiFi module. These are linked to the database and interpreted into digital form using an I 2 C LCD so that the user may see the results afterward. The accuracy of the two sensors (left and right) is evaluated by comparing distance measurement results on an object with an R 2 value of 1. For static testing on rice plants (Oryza sativa L), ten data collecting variations with three repetitions were conducted, with an average R2 of 0.9975 throughout the three repetitions. The dynamic test system includes an Ublox GPS tracker used to read coordinates for variability mapping of cutting width on ArcGIS application using the kriging method. The kriging result shows five different cutting width classes and the difference in variability in harvesting on the field. Keywords: Sensor, Mini Combine Harvester, Accuracy, Cutting Width
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Izmaylov, A. Yu, D. O. Khort, R. A. Filippov, A. I. Kutyrev, and I. G. Smirnov. "Operation Analysis of Automated Unit for Magnetic Pulse Treatment of Garden Strawberry." Agricultural Machinery and Technologies 12, no. 5 (2018): 4–8. http://dx.doi.org/10.22314/2073-7599-2018-12-5-4-8.
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Federal Scientific Agroengineering Center VIM conducts research and development work on the determination of parameters, technical characteristics of machines and operating modes of magnetic pulse treatment (MPT) of plant material in field conditions. (Research purpose) To analyze systems of adaptation of the working elements of an automated unit in field conditions during the technological operation of magnetic pulse treatment of strawberry. (Materials and methods) To ensure the quality of the technological operation of irradiating plants with a lowfrequency magnetic field, as well as to maintain the required value of magnetic induction in the working area, an automated system of adaptation of the working elements of the unit has been developed. The experiment has been carried out for three times on the plot of garden strawberry with a length of 140 m using an automatic system of adaptation of the working elements of the unit and without its use. To control the travel speed use has been made of an electronic GPS speedometer. Operating modes of pulse magnetic treatment (frequency, duty factor, exposure time) have been selected for the ВИММИО device and the БСА01 automated control unit. To control the distance between the object of magnetic pulse treatment and the working element, use has been made of a measuring tape, a laser rangefinder (Amtast AMF106) and a laser sensor (Laser sensor VL53L0X) mounted on the magnetic inductor of the automated unit. For monitoring and keeping the obtained experimental data, the authors have used the program Advanced Serial Port Monitor 4.4.9 (Results and discussion) As a result of the experiment, the authors have determined the dependence of the deviation of the working surface position of magnetic inductors from the required distance. The maximum and minimum values of distances between the plant and the working element of an automated mounted unit during the technological operation of magnetic pulse treatment have been found. (Conclusions) The analysis of the experimental data calculation results has shown that the variation scope of the data obtained by using an automated adaptation system of the working elements is 2.1 times less than in case with a disabled system. The coefficient of variation of the obtained values (a measure of deviation from the standard value) when using the adaptation system of the working elements is 2.35 times less than in case with a disabled system. The developed system of automated adaptation of the working elements provides a distance of 0.180.25 m between the working elements of the unit and plant objects, which allows to maintain the required value of magnetic induction of 5 MT in the treatment zone. The authors have established parameters of the working elements necessary for magnetic pulse treatment of garden strawberry in the field conditions: 48 turns of a cable of 1x2.5 mm with an outer diameter of 400 mm, an inner diameter of 30 mm, and an inductance of 373 µH.
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Djaja-Josko, Vitomir, Marcin Kolakowski, Jacek Cichocki, and Jerzy Kolakowski. "Improving Performance of Bluetooth Low Energy-Based Localization System Using Proximity Sensors and Far-Infrared Thermal Sensor Arrays." Sensors 25, no. 4 (2025): 1151. https://doi.org/10.3390/s25041151.
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This paper presents the concept of a hybrid positioning scheme using results from a Bluetooth Low Energy (BLE)-based system and additional infrared (IR) devices: proximity sensors and far-infrared thermal sensor arrays. In the proposed solution, the IR sensors operate independently from the BLE subsystem. Their output (the distance to the localized person and the angle between the sensor axis and the person’s location) is periodically used to improve the positioning accuracy. The results from both parts of the system are fused using a particle-filter-based algorithm. The proposed concept was tested experimentally. The initial tests established that both the proximity (VL53L5CX) and array (MLX90640) sensors allowed for angle estimations with a mean accuracy of about a few degrees. Using them in the proposed hybrid localization scheme resulted in a mean positioning error decrease of several centimeters.
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Kolakowski, Marcin. "Improving Accuracy and Reliability of Bluetooth Low-Energy-Based Localization Systems Using Proximity Sensors." Applied Sciences 9, no. 19 (2019): 4081. http://dx.doi.org/10.3390/app9194081.
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One of the functionalities which are desired in Ambient and Assisted Living systems is accurate user localization at their living place. One of the best-suited solutions for this purpose from the cost and energy efficiency points of view are Bluetooth Low Energy (BLE)-based localization systems. Unfortunately, their localization accuracy is typically around several meters and might not be sufficient for detection of abnormal situations in elderly persons behavior. In this paper, a concept of a hybrid positioning system combining typical BLE-based infrastructure and proximity sensors is presented. The proximity sensors act a supporting role by additionally covering vital places, where higher localization accuracy is needed. The results from both parts are fused using two types of hybrid algorithms. The paper contains results of simulation and experimental studies. During the experiment, an exemplary proximity sensor VL53L1X has been tested and its basic properties modeled for use in the proposed algorithms. The results of the study have shown that employing proximity sensors can significantly improve localization accuracy in places of interest.
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Pires, Luis Miguel, João Figueiredo, Ricardo Martins, and José Martins. "IoT-Enabled Real-Time Monitoring of Urban Garbage Levels Using Time-of-Flight Sensing Technology." Sensors 25, no. 7 (2025): 2152. https://doi.org/10.3390/s25072152.
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This manuscript presents a real-time monitoring system for urban garbage levels using Time-of-Flight (ToF) sensing technology. The experiment employs the VL53L8CX sensor, which accurately measures distances, along with an ESP32-S3 microcontroller that enables IoT connectivity. The ToF-Node IoT system, consisting of the VL53L8CX sensor connected to the ESP32-S3, communicates with an IoT gateway (Raspberry Pi 3) via Wi-Fi, which then connects to an IoT cloud. The ToF-Node communicates with the IoT gateway using Wi-Fi, and after with the IoT cloud, also using Wi-Fi. This setup provides real-time data on waste container capacities, facilitating efficient waste collection management. By integrating sensor data and network communication, the system supports informed decision-making for optimizing collection logistics, contributing to cleaner and more sustainable cities. The ToF-Node was tested in four scenarios, with a PCB measuring 40 × 18 × 4 mm and an enclosure of 65 × 40 × 30 mm. We used an office trash box with a height of 250 mm (25 cm), and the ToF-Node was located on the top. Results demonstrate that the effectiveness of ToF technology in environmental monitoring and the potential of IoT to enhance urban services. For detailed monitoring, additional ToF sensors may be required. Data collected are displayed in the IoT cloud for better monitoring and can be viewed by level and volume. The ToF-Node and the IoT gateway have a combined power consumption of 153.8 mAh
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Coelho, Rigles Maia, Milena Cardoso Pinto, Nathália Aparecida Fernandes Pereira, Alberto Luiz Costa Losqui, and Damião de Sousa Vieira Júnior. "Desenvolvimento de dispositivo automatizado para o monitoramento da altura do dossel de gramíneas forrageiras." Brazilian Journal of Development 10, no. 7 (2024): e70986. http://dx.doi.org/10.34117/bjdv10n7-003.
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Em uma sociedade contemporânea altamente tecnológica, é imprescindível a formação humana em nível superior, capaz de aliar as possibilidades dessa tecnologia às necessidades de sua área de atuação. Diante desse contexto, esse artigo apresenta um trabalho desenvolvido por estudantes de bacharelado em Zootecnia e orientado por docentes de Física, cujo objetivo foi contextualizar e utilizar a prototipagem eletrônica na otimização do método de monitoramento da altura do dossel de gramíneas forrageiras. Durante o trabalho, os graduandos puderam aprender técnicas envolvendo programação, eletrônica e trabalho em equipe. A metodologia foi baseada na verificação da eficiência do sensor vl53l1x, baseado na técnica LIDAR no monitoramento da altura de pastagem, sendo para isso desenvolvido um protótipo em pequena escala para realização de leituras em altura fixa, através da plataforma Arduino. Observou-se que as características morfológicas e a arquitetura de dossel influenciam diretamente nas leituras bem como o ângulo de medida do sensor. Além disso, foram observados dificuldades devido à interferência da luz solar. Em decorrência disso, o mesmo foi substituído por um sensor ultrassônico HC-SR04, que por sua vez demonstrou o potencial de sonares no acompanhamento da variável analisada. Para validação da técnica ao propósito desejado é necessário a implementação de um sensor LIDAR diferente do vl53l1x por um modelo com melhor tolerância à interferência de luz solar. Em termos gerais, os estudantes agregaram conhecimentos básicos em Física e na aplicabilidade de recursos tecnológicos à sua aŕea de formação, demonstrando o sucesso e a importância da metodologia interdisciplinar na formação superior.
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Kudic, Haris, and Dejan Jokic. "Highly Reliable Time-of-Flight L-Shaped Gesture Recognition System." European Journal of Engineering and Technology Research 8, no. 2 (2023): 69–72. http://dx.doi.org/10.24018/ejeng.2023.8.2.3000.
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Gesture recognition is a field of study that involves recognizing human movements and gestures through sensors. In this paper, a basic gesture recognition system is proposed that uses three Time-of-Flight (TOF) VL53L0X distance sensors positioned in an L-shape able to recognize gesture through cover glass and up to 40 cm of distance. The system is capable of recognizing four basic gestures: swipe right, swipe left, swipe up and swipe down. This system can be applied in various fields such as Human-Computer Interaction (HCI), Gaming, Virtual Reality (VR) and Robotics, this paper will focus on the implementation and evaluation of the proposed system. The inspiration for the system is to simplify interaction with medical panel PCs and monitors while improving the hygienic aspect of the same, while taking into consideration data privacy.
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Hrubý, Dušan, Lukáš Vacho, Ľubomír Kubík, et al. "Characteristics of Distance Errors of Infrared Sensor Relation to Colour Surfaces." Acta Technologica Agriculturae 25, no. 1 (2022): 40–46. http://dx.doi.org/10.2478/ata-2022-0007.
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Abstract This paper deals with the determination of the absolute errors of a small time of flight (ToF) distance sensor with respect to coloured surfaces at different illumination intensities. The aim was to determine the absolute error of the measured distance by the VL53L1X sensor when set to short-mode and long-mode at different illumination intensities: 10 lx and 350 lx depending on the coloured surface using regression analysis methods. The research was performed using 7 colour samples with different spectral colours determined according to the CIE Lab colour model. Based on the performed experiments, it was found that the error at different sensor settings, change of colour surface and different illumination intensity is approximated by a linear function only up to a certain measured distance. The process is influenced by proposed factors such as: illumination intensity, coloured surface with different illumination reflectance and signal-noise parameters of the tested sensor during the experiment.
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Utepov, Yelbek, Alexandr Neftissov, Timoth Mkilima, et al. "Prototyping an integrated IoT-based real-time sewer monitoring system using low-power sensors." Eastern-European Journal of Enterprise Technologies 3, no. 5 (123) (2023): 6–23. http://dx.doi.org/10.15587/1729-4061.2023.283393.
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Improper monitoring of sewage networks may raise various issues such as overflows, pipe blockages, theft of manhole covers, leading to flooding and pollution, infrastructure damage, vehicles accidents, injury, and even death from falling into open manholes. The key objective of this research was to examine different elements and create a prototype architecture for a real-time sewer monitoring system. Implementation of the architecture involved constructing a data gathering station and experimenting with various wireless sensing devices to assess the precision of the sensors. In addition, the study sought to design a geographic information system that integrates algorithms capable of identifying sewer overflow, blocked pipes, and the presence of manhole covers. The performance of Sharp GP2Y0A41SK0F infrared, TF-Luna Benewake LiDar, TOF400 VL53L1X laser, JSN-SR04T ultrasonic distance sensors was tested in terms of their ability to monitor water level and manhole cover. Tests revealed the most favorable results in TOF400 VL53L1X at distances between 0.2 and 1.0 m (presumed distance to the manhole cover) with a standard deviation of 0.13–0.24, and in TF-Luna Benewake at distances between 1.0 and 5.0 m (presumed distance to the chamber bottom) with a standard deviation of 0.44–1.15. The deviation analysis has yielded equations that can be utilized to provide rough estimates of the accuracy levels of the aforementioned sensors, based on the measured distance. Additionally, the FC-28 analog and YL-63 infrared sensors were evaluated for detecting pipe blockages, with the YL-63 being more suitable. The outcomes of this study furnish valuable insights that can aid in achieving sustainable resolutions for issues related to sewer monitoring
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Martinus, Martinus, Meizano Ardhi Muhammad, Mareli Telaumbanua, Rifqi Rhama Andrianto, and Sony Ferbangkara. "Design and Construction of Duku Sorting System Based on Size Using a Microcontroller on Conveyor Work." International Journal of Electronics and Communications Systems 1, no. 2 (2021): 77–84. http://dx.doi.org/10.24042/ijecs.v1i2.10612.
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Duku (Lansuim Domesticum Corr)fruit harvesting is generally done manually by farmers in Indonesia so that the quality of the duku fruit, especially the uniformity of size, is not considered. The impact of this harvesting is a decrease in fruit quality and a decrease in selling prices. It is necessary to develop a new sorting machine for duku so that the fruit size is accurate. This research aims to make a sorting system for duku fruit based on size using a microcontroller on conveyor work. The sorting system uses two sensors, VL53L0X and FC-51. The design has a servo actuator to separate the fruit classes. This study developed a correct sorting of duku fruit sizes up to 97.4%, counting accuracy up to 99.4%, system stability up to 96.65%, and transient response of 100 ms. The result of testing this tool is that the ability of the Duku fruit sorting system based on size has a stability value of 96.6%. The transient response obtained is 100ms. The accuracy of the perfect sorting results is 97.4%, and the calculation of the number of duku using the system is 99.4%. The conclusion is that the researchers can create a sorting system based on size using a microcontroller on conveyor work.
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Zhang, Jiajin, Xiaolong Xie, Guoying Peng, et al. "A Real-Time and Privacy-Preserving Facial Expression Recognition System Using an AI-Powered Microcontroller." Electronics 13, no. 14 (2024): 2791. http://dx.doi.org/10.3390/electronics13142791.
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This study proposes an edge computing-based facial expression recognition system that is low cost, low power, and privacy preserving. It utilizes a minimally obtrusive cap-based system designed for the continuous and real-time monitoring of a user’s facial expressions. The proposed method focuses on detecting facial skin deformations accompanying changes in facial expressions. A multi-zone time-of-flight (ToF) depth sensor VL53L5CX, featuring an 8 × 8 depth image, is integrated into the front brim of the cap to measure the distance between the sensor and the user’s facial skin surface. The distance values corresponding to seven universal facial expressions (neutral, happy, disgust, anger, surprise, fear, and sad) are transmitted to a low-power STM32F476 microcontroller (MCU) as an edge device for data preprocessing and facial expression classification tasks utilizing an on-device pre-trained deep learning model. Performance evaluation of the system is conducted through experiments utilizing data collected from 20 subjects. Four deep learning algorithms, including Convolutional Neural Networks (CNN), Recurrent Neural Networks (RNN), Long Short-Term Memory (LSTM) networks, and Deep Neural Networks (DNN), are assessed. These algorithms demonstrate high accuracy, with CNN yielding the best result, achieving an accuracy of 89.20% at a frame rate of 15 frames per second (fps) and a maximum latency of 2 ms.
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Roos, Rachel E., Jennifer Lambiase, Michelle Riffitts, et al. "The Reliability and Validity of an Instrumented Device for Tracking the Shoulder Range of Motion." Sensors 25, no. 12 (2025): 3818. https://doi.org/10.3390/s25123818.
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Rotator cuff tears are common in individuals over 40, and physical therapy is often prescribed post-surgery. However, access can be limited by cost, convenience, and insurance coverage. CuffLink is a telehealth rehabilitation system that integrates the Strengthening and Stabilization System mechanical exerciser with the interACTION mobile health platform. The system includes a triple-axis accelerometer (LSM6DSOX + LIS3MDL FeatherWing), a rotary encoder, a VL530X time-of-flight sensor, and two wearable BioMech Health IMUs to capture upper-limb motion. CuffLink is designed to facilitate controlled, home-based exercise while enabling clinicians to remotely monitor joint function. Concurrent validity and test–retest reliability were used to assess device accuracy and repeatability. The results showed moderate to good validity for shoulder rotation (ICC = 0.81), device rotation (ICC = 0.94), and linear tracking (from zero: ICC = 0.75 and RMSE = 2.41; from start: ICC = 0.88 and RMSE = 2.02) and good reliability (e.g., RMSEs as low as 1.66 cm), with greater consistency in linear tracking compared to angular measures. Shoulder rotation and abduction exhibited higher variability in both validity and reliability measures. Future improvements will focus on manufacturability, signal stability, and force sensing. CuffLink supports accessible, data-driven rehabilitation and holds promise for advancing digital health in orthopedic recovery.
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Kumar, Abhijeet, and Arpit Kumar. "Contactless temperature and distance measuring device: A low-cost, novel infrared ―based "Badge"-shaped structural model for measuring physical distance and body temperature." AIMS Electronics and Electrical Engineering 6, no. 1 (2022): 43–60. http://dx.doi.org/10.3934/electreng.2022004.
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<abstract> <p>This work eases the feasibility of infrared thermometer application and reliability to introduce a novel design with upgraded applications &amp; functions. The custom-designed compact device "Badge" structured comprises the operative methods through the electronic packages of an optimal level. The physical and social distance measured by the ToF (Time of Flight) infrared laser sensor within 1 m from the subject and the measuring equipment (MLX90632 SMD QFN and VL530LX ToF). When the distance is not maintained, or the physical distance condition is not met, the flashing LED, or vibration should trigger an indication (warning for physical distancing and alteration for pyrexia warning, respectively). Statistical analysis and simulation-based studies criticized the accuracy of ±0.5°F and relational model of the independent and dependent variable for this device with significant R<sup>2</sup> = 0.99 and P &lt; = 1; values with the lowest accuracy error of ±0.2°F and least residual sum of squares 0.01462 values. The portable, lightweight, and dynamic body temperature monitoring altered the application from static to continuous, complete structural design. This alternative provides the best technique to combine worn (personnel) medical devices with primary healthcare instruments to help body temperature measurements that are not contactable, fast, and accurate. It builds a way of processing through the protocol Covid-19.</p> </abstract>
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Khort, Dmitriy O., Aleksei I. Kutyrev, Igor G. Smirnov, Rostislav A. Filippov, and Roman V. Vershinin. "Developing Algorithms for a Berry Recognition System Used in Robotized Harvesting of Garden Strawberry." Elektrotekhnologii i elektrooborudovanie v APK 67, no. 1 (2020): 133–41. http://dx.doi.org/10.22314/2658-4859-2020-67-1-133-141.
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Technological capabilities of agricultural units cannot be optimally used without extensive automation of production processes and the use of advanced computer control systems. (Research purpose) To develop an algorithm for recognizing the coordinates of the location and ripeness of garden strawberries in different lighting conditions and describe the technological process of its harvesting in field conditions using a robotic actuator mounted on a self-propelled platform. (Materials and methods) The authors have developed a self-propelled platform with an automatic actuator for harvesting garden strawberry, which includes an actuator with six degrees of freedom, a co-axial gripper, mg966r servos, a PCA9685 controller, a Logitech HD C270 computer vision camera, a single-board Raspberry Pi 3 Model B+ computer, VL53L0X laser sensors, a SZBK07 300W voltage regulator, a Hubsan X4 Pro H109S Li-polymer battery. (Results and discussion) Using the Python programming language 3.7.2, the authors have developed a control algorithm for the automatic actuator, including operations to determine the X and Y coordinates of berries, their degree of maturity, as well as to calculate the distance to berries. It has been found that the effectiveness of detecting berries, their area and boundaries with a camera and the OpenCV library at the illumination of 300 Lux reaches 94.6 percent’s. With an increase in the robotic platform speed to 1.5 kilometre per hour and at the illumination of 300 Lux, the average area of the recognized berries decreased by 9 percent’s to 95.1 square centimeter, at the illumination of 200 Lux, the area of recognized berries decreased by 17.8 percent’s to 88 square centimeter, and at the illumination of 100 Lux, the area of recognized berries decreased by 36.4 percent’s to 76 square centimeter as compared to the real area of berries. (Conclusions) The authors have provided rationale for the technological process and developed an algorithm for harvesting garden strawberry using a robotic actuator mounted on a self-propelled platform. It has been proved that lighting conditions have a significant impact on the determination of the area, boundaries and ripeness of berries using a computer vision camera.
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Wicaksono Pratama, Adam, and Agus Harijono. "The Analysis Of Ultrasonic Sensors In Smart Trash Bin Technology Based On Arduino Nano Microcontroller." Journal of Mechanical Engineering 1, no. 3 (2024). http://dx.doi.org/10.47134/jme.v1i3.3206.
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Waste is an environmental problem that is increasing along with population growth and public consumption. To solve this problem, an automatic device that controls the opening and closing of the trash can without direct touch is developed using an Arduino Nano microcontroller, HC-SR04 ultrasonic sensor, VL53L0X LIDAR, and MG996R servo motor. This research aims to evaluate the responsiveness of the sensor in detecting objects, the effect of the interaction of distance, angle, and object thickness on the sensor response time and aims to determine the effect of garbage volume on the response time of the indicator LED light. The test was conducted using the experimental method of distance variation of 20 cm, 30 cm, 40 cm, and 50 cm; angle variation of 0°, 10°, and 20°; and thickness variation of 10 mm, 65 mm, and 120 mm. Data analysis using multiple linear regression research methods shows a P-Value of 0.409 for the ultrasonic sensor with ɑ of 0.05, if the P-Value > ɑ, then H0 is accepted and H1 is rejected which mean that there is no significant effect of the interaction between distance, angle, and thickness of the object on the response time of the trash can lid opening sensor.
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Diharja, Reza, Rizky Rivaldy Laday, and Mardiono Mardiono. "Analisis Luaran Hasil Pengukuran Back Gauge pada Kereta Ringan Berbasis Sensor Laser." El Sains Jurnal Elektro 3, no. 2 (2021). http://dx.doi.org/10.30996/elsains.v3i2.5778.
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Kereta merupakan transportasi umum yang paling diminati masyarakat karena ketepatan waktu dan daya angkut yang banyak. Oleh karena itu, kereta harus dijaga performa nya dengan cara melakukan perawatan dan pemeliharaan secara berkala yang mana salah satunya adalah mengukur back gauge dari masing – masing axle (penghubung roda kanan dan roda kiri). Tujuannya adalah untuk menghindari terjadinya kereta anjlok saat dioperasikan akibat jarak back gauge yang tidak sesuai dengan semestinya. Saat ini,yang pengukuran masih dilakukan secara konvensional dengan menggunakan alat ukur manual sehingga tingkat akurasi dan presisi sangat bergantung pada personil yang melakukan pengukuran. Oleh karena itu, ini menjadi dasar dibuatnya sistem berbasis sensor VL53L0X yang mana tujan awalnya agar memudahkan teknisi dalam melakukan pengukuran back gauge pada kereta. Otak dari sistem pengukuran back gauge pada kereta adalah mikrokontroler Arduino Mega 2560yang bertugas menerima dan mengolah data hasil pengukuran dari sensor jarak. Hasilnya ditampilkan pada LCD, keypad sebagai komponen untuk memasukkan nomor kereta beserta nomor axle dan disimpan dalam bentuk file excel berformat .xlsx. Setelah dilakukan pengujian pada alat, didapatkan kesimpulan bahwa alat yang telah dibuat masih harus dilakukan perbaikan. Oleh karena setelah pengolahan data, didapatkan informasi berupa nilai eror relatif dan standar deviasi yang menjauhi nol
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Erlangga, Faishal, and Rosalia H. Subrata. "Perancangan Sistem Alat Pengumpul Sampah Apung Otomatis AFTOR (Automatic Floating Trash Collector)." Jetri : Jurnal Ilmiah Teknik Elektro, February 2, 2022, 209–22. http://dx.doi.org/10.25105/jetri.v19i2.12579.
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Abstract With the rapid process of urbanization and growth in human population globally inflict the growth of trash production. With the growth of number along with poorly waste handling, makes this problem become a global threat that directly or indirectly endanger various aspects of life. Trash that contaminate river’s, waterways’s ecosystem in Indonesia becomes a serious problem that causes a lot of natural disasters such as flood. With the growth and development of technology and information a lot of research and innovation that address waste problem that is currently exist. One of such is device that can collect trash on the surface of the water automatically. AFToR (Automatic Floating Trash Collector) that one sole task is to picks up trash on the surface of river, that uses Light Detection and Ranging (LIDAR) Time of Flight (ToF) VL53L0X proximity sensor and a YF-S201 flow sensor; an Arduino UNO as the microcontroller, in which connected to Android smatphone via bluetooth and wi-fi connection, using HC-05 module and NodeMCU ESP8266 to control and move the actuator in which are two DC (Direct Current) Motors and one MG-996R Servo Motor.Based on the result of tests and research that has been carried out, AFToR is able to function according to the commands that was sent by a user using Android smartphone. The user sends the commands using MIT app Inventor application to the microcontroller via HC-05 bluetooth module, where then the microcontroller will moves AFToR to pick up the trash from the surface of water into the container box.Cepatnya proses urbanisasi serta pertambahan jumlah penduduk secara global mengakibatkan terjadinya peningkatan pada produksi sampah. Peningkatan jumlah yang disertai dengan buruknya penanganan sampah menjadikan sampah sebagai masalah global. Permasalahan sampah yang mencemari sungai di Indonesia merupakan masalah yang sudah serius, rusaknya ekosistem pada sungai dapat menimbulkan berbagai macam bencana alam seperti banjir. Seiring dengan perkembangan ilmu telah banyak inovasi terbaru yang dapat mengurangi permasalahan sampah. Berbagai penelitian dilakukan untuk mengatasi permasalahan tersebut, salah satunya adalah penelitian pembuatan alat pengumpul sampah otomatis AFToR (Automatic Floating Trash Collector) merupakan alat pengumpul sampah otomatis yang berfungsi untuk mengangkut sampah pada permukaan sungai. Alat ini menggunakan masukan berupa sensor jarak light detection and ranging (LIDAR) time of flight (ToF) VL53L0X dan sensor aliran YF-S201; Arduino UNO sebagai mikrokontroler yang dihubungkan ke smartphone Android melalui koneksi jaringan Bluetooth dan wi-fi dengan menggunakan modul HC-05 dan NodeMCU ESP8266 guna mengendalikan alat sehingga dapat menggerakkan Motor DC (Direct Current) dan Motor Servo MG-996R. Berdasarkan hasil penelitian yang telah dilakukan AFToR dapat berfungsi sesuai dengan perintah yang dikirimkan melalui smartphone Android. Operator dapat mengendalikan AFToR dengan menggunakan aplikasi MIT app Inventor, perintah yang dikirimkan ke mikrokontroler menggerakkan alat untuk mengangkut sampah dari permukaan air ke bak penampungan.
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Journal, IJSREM. "Design and Implementation of LIDAR System for Distance Measurements." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 06, no. 10 (2022). http://dx.doi.org/10.55041/ijsrem16626.
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LIDAR (Light Detection and Ranging) is an optical remote sensing system that can measure the distance to a target by shining light on the target. LIDAR technology is used in robotics to recognize the environment and classify objects. The ability of LIDAR technology to provide a 2D elevation map of the terrain, a highly accurate distance to the ground, and an approach speed allows robots and manned vehicles to land accurately and safely. LIDAR consists of a transmitter that illuminates the target with a laser beam and a receiver that can detect light components that are substantially coaxial with the transmitted beam. The receiver sensor calculates the distance based on the time it takes for the light to reach and return to its destination. A mechanical mechanism with a mirror uses a rotating nodding mirror to pan the light beam and cover the desired scene in one plane or even in 3D. LIDAR can measure distances up to 40 meters, making this system suitable for urban environments. The rider was mounted on a stepper motor and covered the entire area. This paper describes the design and implementation of LIDAR for distance measurement. Keywords: Arduino Nano, LIDAR, VL53L0X sensor, Servomotor, Processing Software.
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"Diseño y Fabricación de un Levitador Neumático para Prácticas de Control de Procesos Utilizando Manufactura Aditiva." CIENCIA, INGENIERÍA Y DESARROLLO TEC LERDO 1, no. 10 (2024): 190–97. http://dx.doi.org/10.62805/cid2024.cid049.
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Una de las principales problemáticas en el proceso de enseñanza – aprendizaje de la teoría de control es la falta de prototipos que permitan llevar a la práctica los conocimientos adquiridos. El presente trabajo presenta el diseño y la fabricación de un levitador neumático utilizando Diseño Asistido por Computadora (CAD), Manufactura Asistida por Computadora (CAM) e Ingeniería Asistida por computadora (CAE) a través del software NX de Siemens. Se presentan las etapas durante el diseño, simulaciones de esfuerzos, comportamiento térmico y flujo de aire con la finalidad de asegurar el correcto funcionamiento de la estructura. Así mismo, una propuesta de tarjeta electrónica para el control del sistema diseñada en el software Eagle de Autodesk y fabricada a través de una fresadora de control numérico (CNC) para mejorar el acabado y rendimiento de los componentes electrónicos. La parte electrónica está formada por un control de corriente directa acondicionado a una placa ESP32 y un sensor láser de distancia VL53l0X. También se tiene un gabinete de control que contiene una fuente de alimentación, una pantalla LCD y los conectores necesarios para el intercambio de información entre la planta de prueba (levitador) y el controlador (ESP32). Se realizaron pruebas a lazo abierto para verificar el correcto funcionamiento de la estructura y componentes electrónicos teniendo resultados satisfactorios para introducir el controlador que el usuario final decida utilizar.
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Sharma, Rishabraj, Abhishek D. Patange, Rohan Padalghare, and Ranjeet C. Kale. "Development of LiDAR operated inventory control and assistance robot." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, March 13, 2023, 095440892311600. http://dx.doi.org/10.1177/09544089231160023.
Full textAbstract:
The cordial existence of robots and humans in the same workstation is an important aspect of the deployment of autonomous systems. Usually, robots are integrated with auxiliary sensors for monitoring the surroundings and tackling unexpected actions. The incorporation of LiDAR (light detection and ranging) and SLAM (simultaneous localization and mapping) has gained the researcher’s attention these days. The current study aims at developing a collision-free motion for an autonomous robot to ensure the least possible travel period at internodes. First, a SLAM-based algorithm for a static environment is proposed. A low-cost microcontroller Arduino UNO is used here along with LiDAR VL53L0X and is integrated with MATLAB to store and display the acquired data. The A* algorithm is used to navigate between the shortest paths on the obtained map. The robot is also integrated with radio frequency identification (RFID) sensors to automate the process. The proposed system would be useful for material handling, assistance, and cleaning purpose in large warehouses or households.
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"Smart Radar Glasses." International Journal of Recent Technology and Engineering 8, no. 5 (2020): 3493–96. http://dx.doi.org/10.35940/ijrte.e5884.018520.
Full textAbstract:
The aim of the project is to help differently able person, especially blind or visually impaired people, who are unable to recognize the object which is coming towards them. When a visually impaired person navigates into the heavy traffic area, it is difficult for them to cross the street. The outcome of the project is to give a signal to the visually impaired person, so that he/she can be able to keep themselves in a safe/static zone and is easy to use for the visually impaired person. In this project we use glass sensors having an accurate and precise sensor (VL53L1X) which is based on the LIDAR which will calculate the distance between objects or hurdles in front of blind person and respond. For response we have use a vibrating mini motor which will alert the blind person by giving vibrating alert. A vibration will be produced in accordance with the distance. Nearer the object, faster will be the vibration and far the object, slower will be the vibration. We have tried to make a user friendly and handy equipment by using a power supply of 3.7V battery, which is rechargeable, compact in size and easy to use by the user. An Arduino Nano is being used to reduce complexity of circuit and to produce the required output.
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Abidin, Muhammad Sainal, Aryani Adami, Desak Ketut Sutiari, and Ridia Utami Kasih. "Laser Distance Based Digital Weight and Height Measurement System with Thermal Printer Output." Sebatik 28, no. 2 (2024). https://doi.org/10.46984/sebatik.v28i2.2490.
Full textAbstract:
The growth and development of a person's body can be affected by various factors such as hereditary factors, the environment and the type of food consumed. One method that can be used to find out the condition of a person's body growth and development is to compare weight and height. This analysis is known as Body Mass Index (BMI). To carry out this analysis, weight and height measurements must first be taken. With the tools developed in this study, the analysis process can be carried out easily. This developed tool is able to measure height and weight at the same time. Height measurement is carried out by placing the weight sensor (Load Cell) under the user's footing like a tire scale in general. As for height measurement, on the top of the patient's head, a laser-based distance sensor VL53L1X placed. In contrast to height measurement which uses a voice-based distance sensor with direct measurements on the surface of the patient's head whose measurement results are less accurate. This is due to the uneven surface of the head, different hair shapes, and diffused sound waves. With the Scale Bar method/plate that can move up/down automatically as the sensor measurement plane. Thus, the measurement results are better because the reflection plane is in the form of a flat plate so that the light reflection results from the laser sensor become more focused. From the results of measurements, weight and height in several patients, the results of measurements were obtained with an average difference of 0.3 cm for height and 0.09 kg for body weight measurement.
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Ruciyanti, Febrian, and Budi Sumanto. "Design and Development of a Body Fat Percentage Measurement System Using the Bioelectrical Impedance Analysis (BIA) Foot-to-Foot Method." Emitor: Jurnal Teknik Elektro, August 17, 2024, 208–15. https://doi.org/10.23917/emitor.v24i2.4017.
Full textAbstract:
A person's nutritional status is ideally determined based on a body composition assessment, which differentiates the fat mass and fat-free mass in a human body. Fat and fat-free mass can be calculated using a non-invasive method called bioelectrical impedance analysis (BIA). In this research, a body fat measurement system was designed using the BIA foot-to-foot method, which is also equipped with the automatic body mass and height measurements system using a load cell sensor and a ToF VL53L1X sensor. The BIA method is designed to flow a 0.4mA current with a frequency of 50kHz into the body using four electrodes through the object’s feet. Other parameters required in this system, such as age and gender, will be entered using the keypad. The computing and data processing process uses an Arduino Nano microcontroller and is displayed on the LCD. The system that has been designed is then compared with a similar measuring instrument, Mi Scale Body Composition 2. The results obtained in this study are: the average error value for measuring body weight is 0.43kg; the average error for measuring height is 1.13cm; the average error in measuring BMI is 0.32 kg/m2; and the average error in measuring body fat percentage is 3.25%.