LED lamp design optimizing on minimum non-uniformity of light intensity distribution in space

Afonin, K. N.; Olisovets, Artem; Ryapolova, Yuliya V.; Starosek, Danil G.; Tuev, V. I.; Hristyukov, Vladimir

doi:10.1109/apeie.2016.7806435

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…The intensity of the LED follows the Lampartian principle [19,20], where the degree of illuminance varies according to dω, which represents the change in the cosine angle with respect to the observer surface dA. The light intensity of a white LED can be represented using the Gaussian distribution function f θ (θ), as in (1) [20][21][22]. The light intensity varied according to the angular displacement θ as in Figure 6, where θ is bounded by a minimum of −90 degrees and a maximum of 90 degrees.…”

Section: Study Areamentioning

confidence: 99%

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

et al. 2022

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The current revolution in communication and information technology is facilitating the Internet of Things (IoT) infrastructure. Wireless Sensor Networks (WSN) are a broad category of IoT applications. However, power management in WSN poses a significant challenge when the WSN is required to operate for a long duration without the presence of a consistent power source. In this paper, we develop a batteryless, ultra-low-power Wireless Sensor Transmission Unit (WSTx) depending on the solar-energy harvester and LoRa technology. We investigate the feasibility of harvesting ambient indoor light using polycrystalline photovoltaic (PV) cells with a maximum power of 1.4 mW. The study provides comprehensive power management design details and a description of the anticipated challenges. The measured power consumption of the developed WSTx was 0.02109 mW during the sleep mode and 11.1 mW during the operation mode. The harvesting system can harvest energy up to 1.2 mW per second, where the harvested energy can power the WSTx for six hours with a maximum power efficiency of 85.714%.

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Section: Study Areamentioning

confidence: 99%

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

et al. 2022

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show abstract

“…The intensity of the LED follows the Lampartian principle [19,20], where the degree of illuminance varies according to the cosine angle of the observer. The light intensity of a white LED can be represented using the Gaussian distribution function 𝑓 (𝜃) as in (1) [20][21][22]. The light intensity varied according to the angular displacement 𝜃 as in Figure 6, where 𝜃 is bounded by a minimum of -90 degrees and a maximum of 90 degrees.…”

Section: Study Areamentioning

confidence: 99%

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

Haroun¹,

Deros²,

Alkahtani³

et al. 2022

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The current revolution in communication and information technology is facilitating the Internet of Things (IoT) infrastructure. Wireless Sensor Networks (WSN) are a broad category of IoT applications. However, power management in WSN poses a significant challenge when the WSN is required to operate for a long duration without the presence of a consistent power source. In this paper, we develop a batteryless, ultra-low-power Wireless Sensor Transmission Unit (WSTx) depending on the solar-energy harvester and LoRa technology. We investigate the feasibility of harvesting ambient indoor light using polycrystalline photovoltaic (PV) cells with a maximum power of 1.4mW. The study provides comprehensive power management design details and a description of the anticipated challenges. The power consumption of the developed WSTx was 21.09µW during the sleep mode and 11.1mW during the operation mode. The harvesting system can harvest energy up to 1.2mW per second, where the harvested energy can power the WSTx for six hours with a maximum power efficiency of 85.714%.

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LED lamp design optimizing on minimum non-uniformity of light intensity distribution in space

Cited by 2 publications

References 2 publications

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

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