Sensing Light with LEDs: Performance Evaluation for IoT Applications

Incipini, Lorenzo; Belli, Alberto; Palma, Lorenzo; Ballicchia, Mauro; Pierleoni, Paola

doi:10.3390/jimaging3040050

Cited by 8 publications

(6 citation statements)

References 18 publications

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“…These visible light communications (VLCs) represent the use of the visible light spectrum (VL), between 380 nm and 780 nm, to obtain wireless data communications. Therefore, the data transfer part is performed as an additional functionality; in addition to the main purpose of lighting, both transmission and reception can be performed [56]. As for VLC, the data are modulated on the instantaneous power of light, in its simplest form known as on-off keying (OOK).…”

Section: The Contribution Of Communications Based On Visible Light In the Transmission Of Informationmentioning

confidence: 99%

Analysis and Experiment of Wireless Optical Communications in Applications Dedicated to Mobile Devices with Applicability in the Field of Road and Pedestrian Safety

Zadobrischi

2022

Sensors

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Current developments and the need for high-performance devices that provide safe and reliable communications present a future perspective by using visible light as an alternative solution that can substantially improve road and pedestrian safety. The daily use of smartphones is imperative; thus one can build on this premise a system dedicated to the aforementioned problem. However, the problem of the visible light communication channel (VLC) is highly dynamic and becomes extremely unpredictable in terms of exposure to noise sources. Developing applications dedicated to direct communications with infrastructure and vehicles using portable devices is becoming a challenge and at the same time a necessary solution. The article proposes the shaping of an emission–reception architecture dedicated to adaptive fuse light communications using OCC (optical camera communication) but also standard VLC communications using ambient light sensors via an Android application. This approach aims to provide a first step in shaping information-sharing applications using VLC communications. As far as we know, this approach has not been implemented in external VLC systems. The performance of the architecture and the application was demonstrated by practical tests that confirmed the capacity of the technology even if we are in the first stage.

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Section: The Contribution Of Communications Based On Visible Light In the Transmission Of Informationmentioning

confidence: 99%

Analysis and Experiment of Wireless Optical Communications in Applications Dedicated to Mobile Devices with Applicability in the Field of Road and Pedestrian Safety

Zadobrischi

2022

Sensors

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“…Moreover, if you compare with 'normal' sources of light, LEDs offer great advantages: very small dimensions, low-cost, high reliability, much larger useful life, great variety in color of emitted light, and finally, besides their ability to emit light at various wavelengths, the LEDs can be used as selective light sensors. When working as a photodetector, LEDs have the same operating principle of a conventional photodiode [29][30][31][32][33][34].…”

Section: • I Hear and I Forget • I See And I Remember • I Do And I Un...mentioning

confidence: 99%

Simple equipment for teaching internal photoelectric effect

Spagnolo¹,

Postiglione²,

Angelis³

2020

Phys. Educ.

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In this paper, an educational tool is proposed to show the internal photoelectric effect in a simple and clear way for Undergraduate Physics courses or High Schools. Experimental evidence of the photoelectric effect is particularly important in the didactic experience. This effect is fundamental to introduce students to the world of quantum mechanics, and to the concept of quantized energy. However, it often requires uneconomical and not easy to use equipment. For this reason, here we describe the realization of a simple and low-cost system based on the LED to LED structure; LEDs can in fact act as light sources, but also as photodetectors, being sensitive to wavelengths equal to or shorter than the predominant wavelength they emit. Through the lightning of LEDs of different colors, we thus show that the verification of the photoelectric effect becomes easy.

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“…Explosive innovation and widespread adoption of smart and mobile devices, and the availability of rich data sources are changing the cities in which we live, work and act. Thanks to an increasingly widespread computational capacity, urban spaces will be saturated with both visible and invisible means, which will collect and transmit information [55]. Smart Environment applications can be present in the most varied areas such as energy, ecology, transport, health and wellbeing, education, local government, security of the territory, cultural heritage, and tourism.…”

Section: Wireless Sensor Network and Smart Environmentsmentioning

confidence: 99%

Telecommunications in the ICT Age: From Research to Applications

Baldi

Cancellieri

Chiaraluce

et al. 2019

The First Outstanding 50 Years of “Università Politecnica Delle Marche”

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The human society in the information age deeply relies on digital information processing, communication and storage. Photonic routing and switching is expected to be exploited in future all-optical networks. Channel coding is needed in order to protect information against natural disturbances, and modern coding schemes are able to reach the ultimate limits predicted by Shannon. On the other hand, postquantum cryptography is necessary for assuring security against cyber attackers, possibly provided with quantum computers. Source coding, especially in video data compression, is recommended for optimizing the bandwidth usage. Spread spectrum systems can solve the problem of radio transmissions over common frequency bands. These technologies are of crucial importance for the evolution of networks and of the whole Internet, allowing people to interact each other and access information in the web. Nowadays, the conventional Internet of people has moved into the pervasive Internet of Things providing innovative services in a variety of application fields. In this respect, domotic systems, based on ambient and wearable sensors, appear of dramatic importance in the design of future assisted living protocols.

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Sensing Light with LEDs: Performance Evaluation for IoT Applications

Cited by 8 publications

References 18 publications

Analysis and Experiment of Wireless Optical Communications in Applications Dedicated to Mobile Devices with Applicability in the Field of Road and Pedestrian Safety

Analysis and Experiment of Wireless Optical Communications in Applications Dedicated to Mobile Devices with Applicability in the Field of Road and Pedestrian Safety

Simple equipment for teaching internal photoelectric effect

Telecommunications in the ICT Age: From Research to Applications

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