Design and analysis of the LDR-controlled device

Suherman, Suherman; Purba, Fernando; Dinzi, Riswan; Fauzi, Rahmad

doi:10.1088/1757-899x/851/1/012011

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…d. Light dependent resistor (LDR): a cell that belongs to the Photoconductive family, it has a piece of exposed semiconductor material. The work principle of LDR is that it decreases resistance when receiving light on the component sensitive surface [14]- [20]. e. Extra parts: extra parts such as wires, breadboard and batteries.…”

Section: System Buildingmentioning

confidence: 99%

Execution of a smart street lighting system for energy saving enhancement

et al. 2021

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In many countries, particularly, third world countries. The common issue is saving energy. That`s why smart systems considered now primary for life requirements. This work aims to solve the energy saving problem. We prepared a street model that contains several lampposts on both sides of the street; we placed three IR sensors between the lampposts alongside the street. The IR sensors are connected to the controller (in this work we used Arduino UNO). The controller takes the signal from the IR sensor, and then it sends the command to the lamppost to turn on or off. Depending on the number of cars passed, (we took a sample of a number of cars that passed on an actual street) and through formulas we calculated the power consumed by the lampposts in two cases, the first case is when the lights is always on. The second case is when the smart system applied. We also applied fuzzy logic to the system to take the intensity of the ambient light (the sun light) under consideration. The results showed that the proposed smart lighting system is efficient and reliable in saving energy. The energy saved for both (smart and fuzzy) systems was enormous.

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Section: System Buildingmentioning

confidence: 99%

Execution of a smart street lighting system for energy saving enhancement

et al. 2021

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Load current, dropped voltage and size considerations in LDR based light control system

Candra

Suherman

Siregar

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Energy consumptions are dominated by lighting and air conditioning. Automatic controlling is the solution as human awareness is unreliable. Lighting and air conditioning can be automatically controlled by employing light sensor as well as human existence sensor. Light bulb and street lighting have been widely equipped by light sensor such as the light dependence resistor (LDR). LDR sensor circuit can be made transformer less and transformer based. Transformer less LDR circuit can be integrated into light bulb while transformer based LDR circuit is designed as a standalone device. This paper examines power consumption, load current and circuit size of both LDR circuits. Experiments show that transformer less LDR circuit consumes higher power with limited load current. However, its size is smaller. On the other hand, transformer based LDR circuit consumes less power and provides larger load current. But the challenge is the transformer size to overpower the transformer less circuit.

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Design and analysis of the LDR-controlled device

Cited by 2 publications

References 1 publication

Execution of a smart street lighting system for energy saving enhancement

Execution of a smart street lighting system for energy saving enhancement

Load current, dropped voltage and size considerations in LDR based light control system

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