Development of a Digital Signage System for Automatic Collection and Distribution of Its Content from the Existing Digital Contents and Its Field Trials

Inoue, Hiroyuki; Suzuki, Kaoru; Koji, Sakata; Maeda, Kaori

doi:10.1109/saint.2011.86

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…Declining hardware prices, context awareness, and the shift toward greater interactivity are the main factors driving DS services. DS system typically distributes advertisements, TV broadcasting, and government announcements to trains, buses, transport terminals and hospitals [ 7 ]. A recent study [ 8 ] proposed a quality of service (QoS) and mobility-aware in-vehicle telescreen that extended the DS framework [ 9 ] to vehicular networks by connecting the first hop neighbors of the roadside unit (RSU) to the DS.…”

Section: Background and Related Workmentioning

confidence: 99%

A multicriteria adaptive opportunistic treecast routing protocol for multimedia dissemination in vehicle-to-vehicle telescreen

Sarwar

Lee

2018

PLoS ONE

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This paper presents vehicle-to-vehicle telescreen (VVT) and a multicast scheme to disseminate digital signage multimedia services to vehicular ad hoc networks (VANETs). Multimedia dissemination in VANETs is challenging because of the high packet losses (PLs), delays and longer disconnection times, which degrade the network quality of service (QoS) and user quality of experience (QoE). To reduce the PLs and delays, most existing multimedia multicast schemes in VANETs primarily select routes based on longer route expiration times (RET) or lowest path delays. The RET-based schemes suffer less from PLs when there are fewer active multicastings in the network. When the number of active multicastings increases, delay-based schemes suffer less from PLs comparatively. This tradeoff implies to design an adaptive mechanism by mutually complementing the RET-based and delay-based schemes to reduce PLs and delays. In this paper, we propose a multicriteria adaptive opportunistic treecast routing protocol (MAOTRP), which adapts the route selection mechanism according to active multicastings for efficient multimedia dissemination in VVT. The MAOTRP adjusts the weights of route selection parameters, including RET and delays, by considering their contribution in improving packet delivery ratio. MAOTRP extends a tree-based multicast protocol to provide robustness through alternate routes for link failures to reduce PLs. Through several experimental evaluations, we show that the proposed dissemination scheme improves QoS and QoE, and reduces the average disconnection time.

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Section: Background and Related Workmentioning

confidence: 99%

A multicriteria adaptive opportunistic treecast routing protocol for multimedia dissemination in vehicle-to-vehicle telescreen

Sarwar

Lee

2018

PLoS ONE

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“…The declining prices of DS hardware, self-adaptability of content layout, and the shift towards greater interactivity are the main success factors of DS service. DS service providers merge the content from multiple sources such as advertisements, TV broadcasting, newspapers, and government announcements, and distribute them to trains, buses, transport terminals and hospitals instead of separate displays in public places for each [10]. Muller et al [11] presented a DS with an installed camera to detect the user's presence and learn the preferences of the users to change the content accordingly.…”

Section: Review Of Ds Architecture and Servicesmentioning

confidence: 99%

Quality of service and mobility aware in-vehicle telescreen service architecture

et al. 2017

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Original scientific paper This paper presents an architecture for providing quality of service (QoS) and mobility-aware telescreen services in vehicular networks, named "in-vehicle telescreen" (IVT). Providing seamless imagery effect is a key challenge in the distribution of high-resolution and delay-sensitive infotainment IVT services under mobile and varying network conditions. In the IVT architecture, new functions of information and service quality management are introduced to manage the user registrations, service advertisements, network information, and service quality. We propose an adaptive selection of application QoS parameters and an IVT handover decision mechanism for providing seamless imagery effect and enhance user's multimedia perception. The proposed architecture can provide a sustainable channel rate based selection of content source, media resolution, and codec to improve the perceived visual quality. Furthermore, the paper presents a Link Expiration Time and Received Signal Strength Indicator based IVT handover decision mechanism that can minimize the number of handovers by selecting a stable path. An extensive simulation is performed to show the effectiveness of the proposed mechanisms. Keywords: handover decision mechanism; in-vehicle telescreen; quality-of-experience; quality-of-service; vehicular networks Arhitektura kvalitete usluge i usluge tele-ekrana u pokretnim voznim mrežamaIzvorni znanstveni članak U radu se predstavljena arhitektura za osiguranje kvalitete usluge (quality of service -QoS) i usluge tele-ekrana u voznim mrežama koje reagiraju na pokretljivost, nazvane teleekran unutar vozila -"in-vehicle telescreen" (IVT). Osiguranje nepromjenljive slike je ključni izazov u pružanju IVT usluga visoke rezolucije u mobilnim uvjetima i uvjetima variranja mreže. U IVT arhitekturi uvode se nove funkcije upravljanja kvalitetom informacija i usluga u vođenju registracije korisnika, oglašavanju usluga, obavijesti o mreži, i kvaliteti usluge. Predlažemo prilagodljiv izbor QoS parametara te mehanizam za donošenje odluke o prekapčanju IVT kako bi se osigurala čista slika i poboljšala multimedijska percepcija korisnika. Predloženom se arhitekturom može osigurati izbor izvora sadržaja zasnovan na prosječnoj kanalskoj brzini, rezolucija medija i kodek (koder-dekoder) za poboljšanje postojane vizualne kvalitete. Nadalje, u radu se predstavlja mehanizam za donošenje odluke o prekapčanju IVT temeljen na pokazivaču vremena isticanja veze i pokazivaču snage primljenog signala koji može smanjiti broj prekapčanja izborom stabilne staze. Provedena je opsežna simulacija kako bi se pokazala učinkovitost predloženih mehanizama. Ključne riječi: mehanizam za donošenje odluke o prekapčanju; teleekran u vozilu; kvaliteta iskustva; kvaliteta usluge; vozne mreže

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“…Penelitian tersebut menggunakan pendekatan "satu-sumber, multi-guna", secara otomatis mengambil konten lokal ke database, mendaftarkan pada database digital signage, kemudian menampilkannya. Peneliti telah mendesain dan mengembangkan purwarupa berdasarkan ISSN: 2354-5771 penelitian tersebut, dan menerapkannya uji coba lapangan pada digital signage untuksarana transportasi trem [3].…”

Section: Pendahuluanunclassified

Digital Signage sebagai Media Penyampaian Informasi Kegiatan Akademik Berbasis Mikrokomputer

Suranata¹,

Wardana²

2015

citec

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Penelitian ini menerapkan salah satu jenis mikrokomputer, yaitu Raspberry Pi Tipe B yang digunakan sebagai perangkat pemroses inti sebuah sistem pengelola konten berbasis web pada digital signage untuk kepentingan akademik. Sistem pengelola konten yang dibangun pada penelitian ini menggunakan framewok berbasis Drupal 7 dan sistem operasi Raspbian Wheezy. Berdasarkan penelitian sebelumnya, penggunaan digital signage sebagai media untuk menyebarkan informasi memiliki beberapa keunggulan dibandingkan dengan media konvensional, seperti media cetak. Digital signage mampu menampilkan informasi yang lebih atrakif dan dapat menarik pengunjung lebih banyak. Kelebihan yang dimiliki oleh sebuah mikrokomputer, seperti harga yang relatif terjangkau, ukurannya yang kecil (seukuran kartu ATM), dan konsumsi daya yang rendah (3,5 Watt) bisa dipadukan dengan penggunaan digital signage dalam hal pemilihan perangkat pemroses inti. Dari hasil pengamatan yang dilakukan peneliti selama eksperimen, mikrokomputer mampu menjalankan antarmuka berbasis web dinamis yang menampilkan konten multimedia seperti gambar dan efek transisi yang atraktif dengan baik untuk keperluan penyampaian informasi akademik di Laboratorium Robotics and Embedded Systems STMIK STIKOM Bali.This study implements a kind of microcomputers which is called Raspberry Pi type B as a core processing device of digital signage for academic purposes. The content management systems constructed in this study used Drupal framewok and Raspbian Wheezy as operating systems. Compared to the conventional method (printed brochures, etc.), the use of microcomputers for displaying information offer some advantages. According to the previous work, it is concluded that digital signage can be more attractively invite the audiences. A relatively affordable price, small size (at the size of an ATM card), and low power consumption (approximately 3.5 Watts), make the microcomputer as an ideal choice for digital signage. According to the obtained results, the microcomputer is capable to run a dynamic web-based interface that displays a multimedia content such as images and transition effects etc. for academic information systems implemented at the Laboratory of Robotics and Embedded Systems STMIK STIKOM Bali.

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Development of a Digital Signage System for Automatic Collection and Distribution of Its Content from the Existing Digital Contents and Its Field Trials

Cited by 8 publications

References 4 publications

A multicriteria adaptive opportunistic treecast routing protocol for multimedia dissemination in vehicle-to-vehicle telescreen

A multicriteria adaptive opportunistic treecast routing protocol for multimedia dissemination in vehicle-to-vehicle telescreen

Quality of service and mobility aware in-vehicle telescreen service architecture

Digital Signage sebagai Media Penyampaian Informasi Kegiatan Akademik Berbasis Mikrokomputer

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