Impact of light on safety in industrial environments

Jayawardena, Asiri; Duffy, David; Manahan, Joseph M.

doi:10.1109/pcicon.2015.7435087

Cited by 7 publications

(2 citation statements)

References 24 publications

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“…SMPS banyak diterapkan secara luas karena keuntungan yang ditawarkan dalam hal ukuran, berat, biaya dan kinerja. Keuntungan LED lainnya adalah awet dan ramah lingkungan karena lebih sedikit mengandung komposisi zat beracun jika dibandingkan dengan jenis lampu lain [9][10][11][12].…”

Section: Pendahuluanunclassified

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Hariyawan,

Harpawi

2020

elementer

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Lampu light emitting diode (LED) menjadi semakin populer digunakan dalam berbagai macam aplikasi, karena penggunaan daya yang rendah, efisiensi yang tinggi dan perawatan yang rendah. Untuk mencapai efisiensi yang tinggi dalam transfer energi pada catu daya LED, diterapkan switched mode power supply (SMPS). SMPS diimplementasikan dengan pulse width modulation (PWM) yang beroperasi pada frekuensi konstan. Frekuensi switching konstan menghasilkan emisi yang signifikan di sejumlah frekuensi, emisi ini dinamakan electromagnetic interference (EMI). EMI yang dihasilkan termasuk di dalamnya frekuensi operasi fundamental catu daya dan harmoniknya melalui mekanisme conducted dan radiated. Sebagai akibatnya, SMPS berpotensi tidak bisa memenuhi standar electromagnetic compatibility (EMC). Modifikasi switching pada SMPS menggunakan teknik spread spectrum merupakan solusi yang murah dan berdaya guna dalam mitigasi EMI. Pada penelitian ini dilakukan modifikasi switching pada LED driver dengan sinyal chaotic Lorenz. Sinyal chaotic Lorenz diterapkan pada LED evaluation board kemudian dilihat kinerja EMI-nya dibandingkan saat LED driver bekerja dengan frekuensi konstan. Ketika diterapkan sinyal chaotic Lorenz terjadi penurunan level emisi EMI terbesar sebesar 16,5 dBÂµV.

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Section: Pendahuluanunclassified

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Hariyawan,

Harpawi

2020

elementer

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“…8 Performance of LED light sources has been studied in comparison to legacy and competing technologies. In industrial applications, LED sources have potential advantages in providing superior visual performance with lower luminous flux output and power use, superior performance in low-light (mesopic) conditions, the ability to minimise discomfort glare through the use of optics, [9][10][11][12] and the longer life resulting in less maintenance being required. 13 There has been very little study of mining machine lighting in the detection of trip hazards in a simulated underground mine environment.…”

Section: Introductionmentioning

confidence: 99%

LED lighting for improving trip object detection for a walk-thru roof bolter

Sammarco

MacDonald

Demich

et al. 2018

Lighting Research & Technology

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Proper lighting plays a critical role in enabling miners to detect hazards when operating a roof bolter, one of the most dangerous mining machines to operate; however, there has not been any lighting research to address the walk-thru type of roof bolter commonly used today. To address this, the Saturn light was designed to directly address walk-thru roof bolter safety by improving trip hazard illumination. The visual performances of 30 participants that comprised three age groups were quantified by measuring each participant's visual performance in detecting trip objects positioned on the two floor locations within the machine's interior working space. The lighting conditions were the existing compact fluorescent lights (CFLs) and the Saturn LED area light developed by NIOSH researchers. Three intensities of the Saturn lights were used, 100%, 75%, and 50%, all of which resulted in better visual performance, and up to a 48% reduction in average trip detection time compared to the CFL. For the Saturn trip object miss rates were <0.5% for all age groups in contrast to the CFL, which ranged between 32.5% for the youngest group and 50.4% for the oldest group.

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The Advancement of Industrial LED Lighting and Its Future Applications

Elliott

Jayawardena

2022

2022 IEEE-IAS/PCA Cement Industry Conference (IAS/PCA)

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Impact of light on safety in industrial environments

Cited by 7 publications

References 24 publications

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

LED lighting for improving trip object detection for a walk-thru roof bolter

The Advancement of Industrial LED Lighting and Its Future Applications

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