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Journal articles on the topic 'WebSocet'

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Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

Järvinen, Hannu, Dario Garcia-Gasulla, and Ulises Cortés. "A Push-Based Agent Communication Model Empowering Assistive Technologies." International Journal on Artificial Intelligence Tools 23, no. 01 (February 2014): 1440003. http://dx.doi.org/10.1142/s021821301440003x.

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Nowadays Web services are one of the most commonly used technologies for distributed system integration and interoperability. Recently, a new communication technique called WebSockets has appeared for implementing Web services that offer a true server-push mechanism. In this paper we present a system based on it to manage agent communications, and we motivate its use in an Assistive Technologies use case. A new WebSocket Message Transport Protocol is described and an implementation for the Jade platform is presented. Subscription based agent interaction for the use case is presented, along with a comparison between WebSocket and HTTP Message Transport Protocols.

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2

Aina, Segun, Samuel Dayo Okegbile, Perfect Makanju, and Adeniran Ishola Oluwaranti. "An Architectural Framework for Facebook Messenger Chatbot Enabled Home Appliance Control System." International Journal of Ambient Computing and Intelligence 10, no. 2 (April 2019): 18–33. http://dx.doi.org/10.4018/ijaci.2019040102.

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The need to remotely control home appliances is an important aspect of home automation and is now receiving lot of attentions in the literature. The works so far are still at a development level making further research necessary. This article presents a framework for chatbot-controlled home appliance control system and was implemented by programming a Raspberry Pi using the Python language while the chatbot server was also implemented using a Node.js on JavaScript. The Raspberry Pi was connected to the chatbot server via Wi-Fi using a websockets protocol. The chatbot server is linked to Facebook Messenger using the Messenger Application Protocol Interface. Messages received at the chatbot server are analyzed with RasaNLU to classify the user's intention and extract necessary information which are sent over websocket to the connected Raspberry pi. The system was evaluated using control precision and percentage correct classification with both producing a significant level of acceptance. This work produced a Facebook Messenger chatbot-based framework capable of controlling Home Appliances remotely.

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3

Shiraishi, Shumpei. "3. WebSocket." Journal of the Institute of Image Information and Television Engineers 67, no. 2 (2013): 102–8. http://dx.doi.org/10.3169/itej.67.102.

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4

Ogundeyi, K. E., and C. Yinka-Banjo. "WebSocket in real time application." Nigerian Journal of Technology 38, no. 4 (December 12, 2019): 1010. http://dx.doi.org/10.4314/njt.v38i4.26.

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5

Liu, Wen Tao. "Research on the Development of WebSocket Server." Advanced Materials Research 886 (January 2014): 694–97. http://dx.doi.org/10.4028/www.scientific.net/amr.886.694.

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The WebSocket makes the web application to deal with the web data directly in the HTML5 and it provides full-duplex communications channels using TCP connection. Some traditional web communication technologies and their shortcomings are introduced such as polling, long polling, stream and flash xml socket in this paper. The principle of the web socket is introduced and a WebSocket server is developed which can be used in the real time web environment. The server includes two modules which include the socket listener and the communication socket. The server implements the WebSocket handshake protocol and the data transfer protocol. The server is developed by C++ language which can provide high efficiency data operation and network transportation. The program is more scalability and flexibility and it uses the universal interface to implement the core functions of web socket with the CAsyncSocket.

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6

Miu, Anson, Francisco Ferreira, Nobuko Yoshida, and Fangyi Zhou. "Generating Interactive WebSocket Applications in TypeScript." Electronic Proceedings in Theoretical Computer Science 314 (April 3, 2020): 12–22. http://dx.doi.org/10.4204/eptcs.314.2.

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7

Rodas Vasquez, Alejandro, and Alexander Valencia Carrasquilla. "Desarrollo e implementación de un prototipo para una plataforma tecnológica para la transmisión de texto y video (streaming) en tiempo real empleando tecnología websocket." Ingenierías USBMed 9, no. 2 (August 9, 2018): 2–10. http://dx.doi.org/10.21500/20275846.3277.

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El presente documento describe el proceso de construcción de una plataforma tecnológica enfocada a prestar un servicio de comunicación en tiempo real utilizando Websocket. Primero se realiza la descripción de las tecnologías Polling, Long Polling y Streaming con el fin de contextualizar los enfoques que anteriormente se empleaban para lograr simular una comunicación full-duplex. Posteriormente, hace una definición de lo que el Websocket y su integración con HTML5. Por último, se muestra el desarrollo de la plataforma y las herramientas software que se emplearon.

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8

Sukoco, Nesa, Suroso Suroso, and Ibnu Ziad. "Kelayakan Penggunaan Protokol WebSocket untuk Presensi Perkuliahan Jurusan Teknik Elektro Politeknik Negeri Sriwijaya Berteknologi Quick Response Code." Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) 5, no. 4 (November 27, 2020): 11. http://dx.doi.org/10.33772/jfe.v5i4.13833.

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Perkembangan teknologi khususnya di bidang telekomunikasi memberikan perspektif baru untuk menjadikan proses presensi yang sebelumnya dilakukan manual dengan media kertas kini beralih ke penggunaan IT berupa web server sebagai admin dan aplikasi mobile berbasis android dengan teknologi Quick Response code (QR) sebagai client. Proses presensi mahasiswa membutuhkan koneksi yang real time. Salah satu protokol yang mendukung komunikasi real time adalah WebSocket. Protokol WebSocket tersebut digunakan dan dilakukan pengujian berdasarkan skenario yang telah ditentukan. Hasil pengujian menunjukkan bahwa semakin banyaknya request yang dikirim maka akan berpengaruh terhadap nilai Round Trip Time (RTT) dan request yang mampu dilayani oleh sistem.

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9

Bavenko, A. O., and A. B. Koba. "Using WebSocket technology for realtime data transfer." Connectivity 143, no. 1 (2020): 40–43. http://dx.doi.org/10.31673/2412-9070.2020.064043.

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10

Łasocha, Wojciech, and Marcin Badurowicz. "Comparison of WebSocket and HTTP protocol performance." Journal of Computer Sciences Institute 19 (June 30, 2021): 67–74. http://dx.doi.org/10.35784/jcsi.2452.

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The aim of the author of this article is analyze the performance of WebSocket and HTTP protocol and their comparison. For this purpose, was used equipment working in a local network consisting of server, two client computers, switch and self-created research web application. Using a test application was measured time of data transfer between clients and server as well server and clients. The tests included transmission 100-character texts in specified number of copies considering speed of hardware (laptops) and software (web browsers). Additionally, was investigated the impact of overhead and TLS encryption to performance. The obtained results have illustrated in the form of charts, discussed and appropriate conclusions drawn.

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Lundar, Johan Andre, Tor-Morten Grønli, and Gheorghita Ghinea. "Performance Evaluation of a Modern Web Architecture." International Journal of Information Technology and Web Engineering 8, no. 1 (January 2013): 36–50. http://dx.doi.org/10.4018/jitwe.2013010103.

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The past decade has marked a shift in Web development as users have become accustomed to Web applications with dynamic content and enhanced user experience. Different languages and technologies have been utilised to make way for such applications, gradually stretching existing standards and protocols to its limits. The field of Web development has been characterized by a lack of coherent architectural concepts, partly due to the absences of standard protocols that support modern communication styles. As a result of this, systems specifically designed for real-time data delivery have been required and realised with proprietary technology in the industry, consequently violating established software engineering principles such as modularity, consistency and simplicity. This paper explores how current Web technologies support the requirements of modern Web applications. A prototype application was developed in the last phase to demonstrate the efficacy of combining the WebSocket protocol and API together with the use of JavaScript as exclusive programming language at the client and server. Based on the findings of the research carried out it appears that the use of protocols and standards such as WebSocket, WebSocket API and Server-Sent Events caters for higher network performance, increased flexibility and standards compliance.

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Ramli, Kalamullah, Asril Jarin, and Suryadi Suryadi. "A Real-time Application Framework for Web-Based Speech Recognition Using HTTP/2 and SSE." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (December 1, 2018): 1230. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp1230-1238.

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The performance of network-based speech recognition application is mainly determined by the availability of all speech data received on the server and also the realtimeness in delivering the recognition results from the server. On the basis of full-duplex speech recognition application this paper proposes a real-time application framework for web speech recognition using HTTP/2 protocol and Sender-Sent Events (SSE). A number of experiments were performed to compare the latency of both the application using HTTP/2 plus SSE and the full-duplex application using WebSocket. The results showed that the proposed framework offers better alternative for a web-based speech recognition than the framework using WebSocket.

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Prathama, Gede Humaswara, Ni Made Ary Esta Dewi Wirastuti, and Yoga Divayana. "Analisa Penggunaan WebRTC dan Websocket pada Real Time Multiplayer Online Game Tradisional Ceki." Majalah Ilmiah Teknologi Elektro 18, no. 1 (May 6, 2019): 47. http://dx.doi.org/10.24843/mite.2019.v18i01.p07.

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Ceki adalah salah satu permainan kartu tradisional yang pernah cukup popular di Malaysia, Singapura dan Indonesia. Di Bali permainan ceki sudah menjadi tradisi, dimana permainan ceki dimainkan saat adanya kegiatan masyarakat. multiplayer online games adalah salah satu cara untuk mengenalkan dan mengembangkan games tradisional menjadi lebih menarik untuk dimainkan. Permasalahan yang sering dihadapi untuk mengembangkan multiplayer online game diantaranya adalah permasalahan latency yang berbeda dari masing-masing pemain sehingga bisa mengganggu permainan dari pemain lain yang memiliki latency lebih baik. Pada penelitian ini akan dibangun real time multiplayer online game untuk memainkan permainan tradisional ceki. membahas bagaimana aturan-aturan dari permainan tradisional ceki yang didapat dari aturan permainan masyarakat Bali akan diterapkan pada game engine dari multiplayer online game, bagaimana implementasi arsitektur multiplayer online game pada web-browser yang berbasis client-server dan peer to peer. Fokus dari penelitian ini adalah pada performansi dari penggunaan websocket dan webRTC terhadap latency dan penggunaan bandwidth untuk sinkronisasi data yang mendukung real time multiplayer online game berbasis peer to peer. Hasil yang didapatkan dari penelitian ini dilihat rata-rata latency yang dibutuhkan untuk sinkronisasi data antara websocket dibandingkan dengan webRTC sangat signifikan. Jumlah pemain tidak berpengaruh pada latency baik pada websocket maupun webRTC.

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Zhao, Shu Man, Xiao Ling Xia, and Jia Jin Le. "A Real-Time Web Application Solution Based on Node.js and WebSocket." Advanced Materials Research 816-817 (September 2013): 1111–15. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.1111.

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With the rapid development of computer technology, the demand for real-time information is becoming higher, many real-time web applications such as online booking system, stock trading system, instant messaging system, are supposed to send the constant changes of the server to the client in real time. On the basis of in-depth study of WebSocket protocol in HTML5 standard, this paper proposes a new real-time web application solution based on Node.js and WebSocket, aiming to significantly enhancing real-time performance, and more efficiently using the processing power of the server. Finally, the new solution is applied in the game You draw, I guess to theoretically and practically study the viability of the solution and the advantages compared to traditional solutions.

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15

Soewito, Benfano, Christian, Fergyanto E. Gunawan, Diana, and I. Gede Putra Kusuma. "Websocket to Support Real Time Smart Home Applications." Procedia Computer Science 157 (2019): 560–66. http://dx.doi.org/10.1016/j.procs.2019.09.014.

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16

Pimentel, Victoria, and Bradford G. Nickerson. "Communicating and Displaying Real-Time Data with WebSocket." IEEE Internet Computing 16, no. 4 (July 2012): 45–53. http://dx.doi.org/10.1109/mic.2012.64.

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17

Park, Jin-tae, Hyun-seo Hwang, Jun-soo Yun, and Il-young Moon. "Study of HTML5 WebSocket for a Multimedia Communication." International Journal of Multimedia and Ubiquitous Engineering 9, no. 7 (July 31, 2014): 61–72. http://dx.doi.org/10.14257/ijmue.2014.9.7.06.

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18

Yinka-Banjo, Chika Ogochukwu, and Ogundeyi Kehinde Esther. "Financial stock application using websocket in real time application." International Journal of Informatics and Communication Technology (IJ-ICT) 8, no. 3 (November 13, 2019): 139. http://dx.doi.org/10.11591/ijict.v8i3.pp139-151.

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<p>Real time web application involves clients which is also known as a browser getting updates from the server as they happen. The finance world is moving fast, and human brains cannot sustain processing data at that speed, so algorithms are used with regards to the limit observed in old-style real-time communication which include long polling, polling server-sent events and comets, this paper uses WebSocket technology when dealing with real time applications. The Web Socket offers improved result as compared to the conventional approaches that are considered to be good solution of providing real time information and lessens overhead acquired while communicating over the internet and offers stateful, efficient communication among web servers and clients. When there is need to track companies worth/stock using a dashboard immediately and not some seconds ago, WebSocket can be used to stream data without delays.</p>

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19

Pramudita, Yoga Dwitya, and Reza Pulungan. "Covert Channel Pada Aliran Data Websocket untuk Komunikasi Messaging XMPP." IJCCS (Indonesian Journal of Computing and Cybernetics Systems) 9, no. 2 (July 31, 2015): 177. http://dx.doi.org/10.22146/ijccs.7546.

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AbstrakLayanan komunikasi Instant Messaging menyediakan berbagai fitur komunikasi yang bisa digunakan oleh pengguna, diantaranya adalah text messaging (pesan teks) baik online maupun offline. Salah satu standar protokol yang mendukung layanan ini adalah XMPP (Extensible Messaging and Presence Protocol). Aliran komunikasi XMPP menggunakan potongan dokumen XML, sehingga rentan terhadap serangan pasif monitoring konten paket komunikasi. Untuk mengatasi kelemahan ini solusinya adalah menggunakan komunikasi yang terenkripsi. Selain itu ada solusi lain yang coba ditawarkan dalam penelitian ini, yaitu penggunaan covert channel untuk mengirim pesan secara tersembunyi. Dalam penelitian ini akan dibuat sebuah aplikasi klien XMPP berbasis web browser yang mampu melakukan komunikasi XMPP dan juga menyediakan komunikasi covert channel. Komunikasi XMPP agarbisa berjalan diatas aplikasi berbasis web browser maka digunakanlah protokol WebSocket. Protokol inilah yang nantinya akan dieksploitasi pada sisi header, khususnya pada field masking-key untuk memuat pesan covert channel yang dikirimkan pada saat sesi komunikasi XMPP berlangsung. Dari hasil ujicoba, aplikasi klien covert channel mampu menghasilkan komunikasi dengan lebar data 3 byte perpaket. Aplikasi Klien juga mampu melakukan komunikasi covert channel pada kondisi link komunikasi dengan tingkat probabilitas packet loss dibawah 10%. Kata kunci— WebSocket, XMPP, masking-key, Covert Channel, aplikasi klien berbasis browser. AbstractInstant Messaging communication services provide a variety of communication features that can be used by the user, such as text messaging (text messages) both online and offline. One of the standard protocol that supports this service is XMPP (Extensible Messaging and Presence Protocol). XMPP communication using XML documents, making it vulnerable to passive attacks monitoring content of communications. To overcome this drawback the solution is encrypted communications. The other solutions that try to offer in this research is the use of a covert channel to send hidden messages. In this research will create a browser based XMPP client application that is capable to deliver XMPP communication and also provide covert channel communication. XMPP communication can be built on a web-based application using WebSocket protocol. This protocol will exploit field masking-key to load the covert channel messages that is sent during the session XMPP communication takes place. From the test results, the client application is able to produce a covert channel communication with a data width of 3 bytes in each packet. The client application is also able to perform covert communication channel in a communication link with the condition of the probability of packet loss rate below 10%. Keywords— WebSocket, XMPP, masking-key, Covert Channel, browser based application.

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Rahmatulloh, Alam. "IMPLEMENTASI FORMULA HAVERSINE DAN KOMUNIKASI DATA REAL-TIME MENGGUNAKAN WEBSOCKET DI SISTEM PENGAWASAN WARGA NEGARA ASING." KLIK - KUMPULAN JURNAL ILMU KOMPUTER 6, no. 2 (June 28, 2019): 143. http://dx.doi.org/10.20527/klik.v6i2.210.

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<p><em>Foreign Citizens (FC) after entering Indonesian territory according to applicable legal procedures, the presence of foreigners can be anywhere. Problems also arise when parties involved in supervising foreigners cannot contact foreigners who experience immigration problems and do not know the location of the presence of current foreigners or where they were. One solution to this problem is implementing real time data communication to monitor the location of foreigners, so that foreigners can always be monitored. Before going to the residence, a consideration is needed to determine which residence of the foreigner to be visited. Knowing the distance of a foreigner's residence can be an added point in these considerations. The Haversine method is implemented by calculating the distance between parties involved in the supervision of foreigners with each address of the foreigner's residence. The comparison test results of the Haversine method with Google Maps in this study, which has an average difference of 0.039 km in terms of distance based on a straight line. Real time data communication technology using websocket is implemented into a WNA surveillance system, consisting of web-based applications and android-based applications that are interconnected into websocket networks. The average results of profiling the speed of writing data for 15 minutes from the smartphone to the real time firebase database which is 1.4 milliseconds with 10 seconds of data transmission interval from the smartphone and the results of the average speed of receiving data from firebase realtime database to the WNA monitoring system ie 0 , 36 seconds with the data receiving interval from firebase realtime database 10 seconds.</em></p><p><em><strong>Keywords</strong></em><em>: Firebase Realtime Database, Foreign Citizens</em><em>,</em><em> Haversine, Websocket</em></p><p><em>Warga Negara Asing (WNA) setelah memasuki wilayah Indonesia sesuai prosedur hukum yang berlaku, maka keberadaan WNA dapat berada dimana saja. Masalah pun timbul ketika pihak yang terlibat dalam pengawasan WNA tidak dapat menghubungi WNA yang mengalami masalah keimigrasian dan tidak mengetahui lokasi keberadaan WNA saat ini ataupun lokasi keberadaan sebelumnya. Salah satu solusi dari permasalahan tersebut yaitu mengimplementasikan komunikasi data real time untuk mengawasi lokasi keberadaan WNA, sehingga pergerakan WNA dapat selalu terawasi. Sebelum mendatangi tempat tinggal tersebut, dibutuhkan sebuah pertimbangan untuk menentukan tempat tinggal WNA mana dulu yang akan didatangi. Mengetahui jarak tempat tinggal WNA dapat menjadi poin tambah dalam pertimbangan tersebut. Metode haversine diimplementasikan dengan cara menghitung jarak antara pihak yang terlibat dalam pengawasan WNA dengan setiap alamat tempat tinggal WNA. Hasil pengujian perbandingan metode haversine dengan google maps pada penelitian ini yaitu mempunyai rata-rata selisih sebesar 0,039 km dalam hal jarak berdasarkan garis lurus. Teknologi komunikasi data real time menggunakan websocket diimplementasikan kedalam sebuah sistem pengawasan WNA, terdiri dari aplikasi berbasis web dan aplikasi berbasis android yang saling terhubung kedalam jaringan websocket. Hasil rata-rata profiling kecepatan proses tulis data selama 15 menit dari smartphone ke firebase realtime database yaitu 1,4 milidetik dengan interval pengiriman data dari smartphone 10 detik sekali dan hasil rata-rata kecepatan penerimaan data dari firebase realtime database ke sistem pengawasan WNA yaitu 0,36 detik dengan interval penerimaan data dari firebase realtime database 10 detik sekali.</em></p><em><strong>Kata kunci</strong></em><em>: Firebase Realtime Database, Haversine, Pengawasan WNA,</em><em> </em><em>Websocket</em>

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Pramukantoro, Eko Sakti, and Husnul Anwari. "An Event-based Middleware for Syntactical Interoperability in Internet of Things." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (October 1, 2018): 3784. http://dx.doi.org/10.11591/ijece.v8i5.pp3784-3792.

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Internet of Things (IoT) connecting sensors or devices that record physical observations of the environment and a variety of applications or other Internet services. Along with the increasing number and diversity of devices connected, there arises a problem called interoperability. One type of interoperability is syntactical interoperability, where the IoT should be able to connect all devices through various data protocols. Based on this problem, we proposed a middleware that capable of supporting interoperability by providing a multi-protocol gateway between COAP, MQTT, and WebSocket. This middleware is developed using event-based architecture by implementing publish-subscribe pattern. We also developed a system to test the performance of middleware in terms of success rate and delay delivery of data. The system consists of temperature and humidity sensors using COAP and MQTT as a publisher and web application using WebSocket as a subscriber. The results for data transmission, either from sensors or MQTT COAP has a success rate above 90%, the average delay delivery of data from sensors COAP and MQTT below 1 second, for packet loss rate varied between 0% - 25%. The interoperability testing has been done using Interoperability assessment methodology and found out that ours is qualified.

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Sotomayor, Xavier, and Diego Ordóñez Camacho. "Pizarra Virtual Compartida Websockets; una solución para trabajo remoto colaborativo." Enfoque UTE 8, no. 1 (February 24, 2017): 374–83. http://dx.doi.org/10.29019/enfoqueute.v8n1.146.

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La Pizarra Virtual Compartida Websockets, PVCW, es un sistema para trabajo compartido que habilita a sus usuarios a colaborar de manera remota, en línea y en tiempo real. El sistema proporciona una pizarra virtual que actúa como un espacio de trabajo en el cual las interacciones de cualquier participante se sincronizan automática e inmediatamente con los demás. En el lado servidor el sistema se implementa mediante la Java Enterprise Edition utilizando la tecnología WebSockets. En el lado cliente no es necesario efectuar ninguno tipo de instalación dado que cualquier browser de nueva generación que soporte WebSockets mediante Javascript, sea en dispositivos de escritorio o móviles, es capaz de integrarse a una sesión de trabajo. Esta configuración permite a los usuarios, dibujar a mano alzada, utilizar figuras geométricas de base y cuadros de texto; pueden guardar una pizarra, cargarla nuevamente en cualquier momento y editar su contenido; adicionalmente se habilita una herramienta de chat que brinda un espacio complementario para añadir explicaciones contextuales a la sesión, todo en un entorno colaborativo.

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Gupta, Yash, Himanshu Dewan, and Alka Leekha. "Real-time monitoring using AJAX and WebSockets." Journal of Statistics and Management Systems 23, no. 1 (January 2, 2020): 125–34. http://dx.doi.org/10.1080/09720510.2020.1714154.

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24

D’Angelo, Gianni, and Salvatore Rampone. "A NAT traversal mechanism for cloud video surveillance applications using WebSocket." Multimedia Tools and Applications 77, no. 19 (February 28, 2018): 25861–88. http://dx.doi.org/10.1007/s11042-018-5821-z.

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Darma Kotama, I. Nyoman, Komang Oka Saputra, and Linawati Linawati. "Proposed Model of Multiplayer Matching Game Plugins Using Websocket in Moodle." International Journal of Emerging Technologies in Learning (iJET) 14, no. 11 (June 14, 2019): 194. http://dx.doi.org/10.3991/ijet.v14i11.10190.

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Technology revolution in computer and information made Learning Man-agement System has widely been used to assist learning process. On the other side the advancement of technology in multimedia made many re-searchers have positive result in game based learning as factor that increase motivation and interest to deliver educational information. We try to pro-pose a concept to implement a multiplayer matching quiz in Moodle LMS to enrich game based learning using Moodle future research about game-based learning implementation in Moodle. The proposed model implements websocket as its multiplayer backend and game questions using Moodle Quiz plugin as a question bank.

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Ma, Kun, and Weijuan Zhang. "Introducing browser-based high-frequency cloud monitoring system using WebSocket proxy." International Journal of Grid and Utility Computing 6, no. 1 (2015): 21. http://dx.doi.org/10.1504/ijguc.2015.066389.

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Ma, Kun, and Runyuan Sun. "Introducing WebSocket-Based Real-Time Monitoring System for Remote Intelligent Buildings." International Journal of Distributed Sensor Networks 9, no. 12 (January 2013): 867693. http://dx.doi.org/10.1155/2013/867693.

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Jevtović, Marko. "Sistem za sinhronizovanu reprodukciju audio sadržaja grupama korisnika." Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 37, no. 02 (January 30, 2022): 223–26. http://dx.doi.org/10.24867/16be13jevtovic.

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U ovom radu je predstavljen sistem za sinhronizovanu grupnu reprodukciju audio sadržaja. Aplikaciju čine server i klijent aplikacije. Server vrši audio striming ka klijentima preko RTSP protokola. Komunikacija između klijenata i servera se odvija i upotrebom REST i WebSocket standarda. Integracija pomenutih tehnologija je izvršena uz pomoć biblioteka otvorenog izvornog koda. Sprovedena je evaluacija ove aplikacije i performanse su upoređene sa sličnim rješenjima. Na osnovu toga su izvučena zaključna razmatranja ovog rada.

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Trisnawan, Primantara Hari, Fariz Andri Bakhtiar, and Eko Sakti Pramukantoro. "Developing Actor-Based Middleware as Collector System for Sensor Data in Internet of Things (IoT)." Journal of Information Technology and Computer Science 5, no. 1 (February 28, 2020): 1. http://dx.doi.org/10.25126/jitecs.202051101.

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The use of Internet of Things (IoT) plays an important role in supporting wireless communication for middleware in collecting data sensors. An actor-based middleware is designed to bridge protocol differences between cloud and sensor nodes. This middleware also acts as an initiator in accessing data from several sensor nodes, and then sending data that has been collected to the cloud. Incorporating the differences of communication protocols and data formats between sensor nodes and cloud is the responsibility of middleware. This Middleware acts as an actor by acting proactively accessing data from each sensor node, so that it can facilitate the completion of sending data from the sensor node to the middleware by avoiding from "signal collisions” among sensor nodes. After the data is collected in the middleware, the data is sent to the cloud using the Websocket or HTTP protocol above the TCP / IP protocol. The performance of the system is evaluated based on the success of the middleware bridging communication between sensor nodes and the cloud, as well as the readability of IoT data sensors that have been adjusted by cloud. The test results show that built-in middleware can bridge protocols between cloud and sensor nodes. In addition, the Websocket usage protocol produces a lower delay value than the MQTT and CoAP protocols.

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Cha, Young-Wook, Jun-Ki Jeong, Choon-Hee Kim, and Kyung-Gjun Kim. "Research of Event Notification Subsystem Based on Websocket and GCM Push Services." Journal of Korean Institute of Information Technology 14, no. 10 (October 31, 2016): 123. http://dx.doi.org/10.14801/jkiit.2016.14.10.123.

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Cui, Bang Jun. "The Cross-Browser Multi-Platform Real Time Online Monitoring System Based on WebSocket." Advanced Materials Research 1030-1032 (September 2014): 1818–21. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.1818.

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The traditional HTTP protocol uses the request、response mode, and it does not support the characteristics such as real-time information transmission and server push. In this paper, the use of HTM5 in the WebSocket protocol supports long connection, full duplex communication and other characteristics, and the design of a new set of real-time online monitoring system has been made, not only solve the efficiency problem of implementation of Web real time communication protocol HTTP polling and other technology, but also ensure cross browser system of multi platform characteristics.

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Xu, Can, Jing Ru Zhang, Ben Chen, and Tao Xie. "Robot Teleoperation System Based on Web and Kinect." Advanced Materials Research 1006-1007 (August 2014): 618–22. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.618.

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The technologies of Web-based teleoperation and somatosensory Human-Computer Interaction have become a hot technology in recent years. Combining with these two technologies, this paper is based on the web server, using Kinect as the front-end of the robot teleoperation human-computer interaction equipment to acquire human-interactive data. Data transfer by using the WebSocket based on HTML 5 and establish the model by using WebGL to realize the remote teleoperation of robot. After the test of the function and performance of the system, indicating the practicality of the system.

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Billy Montolalu, Hamzah Ulinuha Mustakim, and Nilla Rachmaningrum. "Notifikasi Real-time Pada Sistem Nurse Call Nirkabel Berbasis Zigbee Menggunakan Protokol WebSocket." Systemic: Information System and Informatics Journal 7, no. 1 (November 26, 2021): 49–54. http://dx.doi.org/10.29080/systemic.v7i1.1096.

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Sistem Nurse Call, sistem yang digunakan pasien rawat inap untuk memanggil perawat jika membutuhkan bantuan. Sistem ini sangat bermanfaat bagi pasien yang memiliki keterbatasan seperti tidak dapat bicara, tidak dapat berjalan, dan tidak ada keluarga yang berupa telepon atau tombol yang melekat pada tembok. Kelemahan sistem dengan lokasi tombol permanen adalah mobilitas, misalnya ketika pasien sedang ke kamar mandi dan terjadi hal-hal yang tidak diinginkan, pasien akan kesulitan meminta pertolongan. Maka dibutuhkan sistem Nurse Call nirkabel yang dapat dibawa kemanapun pasien pergi sehingga pasien dapat memanggil perawat dimanapun ketika dibutuhkan. Dalam penelitian ini dikembangkan sistem nurse call nirkabel berbasis zigbee menggunakan protokol websocket untuk notifikasi real-time. Tahapan pengembangan yang dilakukan: studi literatur dan observasi lapangan, pengembangan Zigbee push button dan gateway, pengembangan middleware untuk membaca data dari gateway, pengembangan aplikasi dashboard dan pelaporan. Tahapan terakhir monitoring dan evaluasi sistem yang sudah dibuat. Berdasarkan hasil pengujian yang dilakukan sistem dapat berjalan dengan baik ketika jarak antara zigbee push button dan gateway kurang dari 15 meter dan mempunyai waktu respons kurang dari 1634 milisecond.

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Yuan, Chao, Dong Ming Li, and Yan Li. "Review on Real-Time Communications Technology in Web Application." Advanced Materials Research 1044-1045 (October 2014): 1309–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.1309.

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As Web2.0 rapidly develops, B/S structure is increasingly used in applications. Many applications require higher conditions in being real-time. However, due to the limit of applying in communication modes of the B/S structure [1], B/S structure can’t meet the requirement. To solve the problem, solutions have emerged incessantly. This thesis first analyzes the reason of the problem, and tries to review existing solutions. Then performance, advantages and disadvantages are analyzed and summarized subsequently. This thesis mainly introduces the WebSocket protocol of HTML5 standard, and also compares it with polling’s performance. Finally, this thesis discusses the choices of push technology in concrete applications.

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Bai, Junyang, Weiping Wang, Mingming Lu, Haodong Wang, and Jianxin Wang. "TD-WS: a threat detection tool of WebSocket and Web Storage in HTML5 websites." Security and Communication Networks 9, no. 18 (November 27, 2016): 5432–43. http://dx.doi.org/10.1002/sec.1708.

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Herfs, Werner, Wolfram Lohse, Denis Özdemir, and Adam Malik. "Komponentenkapselung und -selbstbeschreibung." atp magazin 55, no. 12 (November 26, 2013): 54–60. http://dx.doi.org/10.17560/atp.v55i12.2189.

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Die Kapselung heterogener Automatisierungskomponenten durch webbasierte Standards, wie Websockets nach dem RFC 6455-Standard, ermöglicht im Vergleich zu SOAP oder REST, Antwortzeiten signifikant zu verringern sowie bidirektionale ereignisbasierte Server-Client-Verbindungen aufzubauen. Eine zusätzliche XML-basierte Komponentenselbstbeschreibung eröffnet Potenziale, anwendungsspezifische Ablaufbeschreibungssprachen automatisiert zu generieren. Die Anwendung wird im Beitrag am Beispiel der Automatisierung biotechnologischer Prozesse demonstriert.

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Akinwale, Olawale Babatunde, and Lawrence Olakunle Kehinde. "An Update to the iLab Shared Architecture for Mobile Device Support." International Journal of Online Engineering (iJOE) 13, no. 02 (February 27, 2017): 87. http://dx.doi.org/10.3991/ijoe.v13i02.6640.

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A number of remote laboratories and virtual laboratories have been created which support the mobile devices factor. The focus of a number of researchers at present is on the platforms which supports these online laboratories. This paper presents the solution we developed. The platform we developed is a modification of the iLab Shared Architecture (ISA) which was originally created by the Massachusetts Institute of Technology. It was expanded to include SMS services and WebSocket services. The goal was to ensure that it is able to support all mobile phones and tablets. Feature phones can perform experiments via SMS and tablets can use HTML5 based applications while personal computers can use the original ISA services.

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Alexeev, V. A., P. V. Domashnev, T. V. Lavrukhina, and O. A. Nazarkin. "The Design Principles of Intelligent Load Balancing for Scalable WebSocket Services Used with Grid Computing." Procedia Computer Science 150 (2019): 61–68. http://dx.doi.org/10.1016/j.procs.2019.02.014.

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Witthayawiroj, Niti, and Pongpon Nilaphruek. "The Development of Smart Home System for Controlling and Monitoring Energy Consumption using WebSocket Protocol." IOP Conference Series: Materials Science and Engineering 185 (March 2017): 012019. http://dx.doi.org/10.1088/1757-899x/185/1/012019.

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Abdelfattah, Amr S., Tamer Abdelkader, and EI-Sayed M. EI-Horbaty. "RAMWS: Reliable approach using middleware and WebSockets in mobile cloud computing." Ain Shams Engineering Journal 11, no. 4 (December 2020): 1083–92. http://dx.doi.org/10.1016/j.asej.2020.04.002.

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Pratiwi, Heny Ispur, Alfa Satyaputra, and Arnold Aribowo. "Purwarupa Sistem Pendataan Pengunjung dan Pengendalian Perangkat Laboratorium Dalam Pengembangan Smart Campus." Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 1, no. 1 (August 10, 2017): 50–57. http://dx.doi.org/10.29207/resti.v1i1.10.

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Sistem pendataan pengunjung laboratorium berfungsi sebagai pendataan waktu keluar-masuk pengunjung laboratorium, sedangkan sistem pengendali perangkat mengendalikan perangkat kelistrikan seperti pendingin ruangan, lampu, dan kunci pintu, semua terintegrasi sebagai satu sistem sebagai implementasi dari pengembangan Smart Campus yaitu kampus yang memberikan kenyamanan dan keamanan bagi dosen, staff dan mahasiswa. Hardware yang digunakan adalah solenoid lock door, papan relay, pembaca RFID, kabel serial dan dua unit mikrokontroler Arduino, sedangkan software yang digunakan adalah skrip Node.js (JavaScript runtime environment) sebagai pusat logika dan komunikasi, program Arduino pada mikrokontroler Arduino pertama, dan firmware Firmata pada mikrokontroler Arduino kedua, dan aplikasi XAMPP sebagai server halaman web yang menggunakan framework Bootstrap, serta library Javascript diantaranya AngularJS, JQuery dan Javascript Bootstrap. MySQL, sebagai basis data, menggunakan serial protocol. Selanjutnya pelengkap solusi sistem adalah websocket dan Johnny-Five Framework. Hasil keluaran integrasi seluruh sistem sesuai rancangan adalah keberhasilan yang diharapkan.

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Damayanti, Florensia Unggul. "Research of Web Real-Time Communication - the Unified Communication Platform using Node.js Signaling Server." Journal of Applied Information, Communication and Technology 5, no. 2 (October 28, 2018): 63–72. http://dx.doi.org/10.33555/ejaict.v5i2.54.

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The way of people communicate has been changed from generation. With rapid innovation of technology and the improvement of computer technology, smartphone, tablet and etc., the traditional communication is confronted. However, unified communication born and Web Real-Time Communication as a part of the innovation of communication technology, enhance the way peoples share their thought, feeling and information, in real-time and different place. This research offers an educational foundation and applied research of WebRTC, to leverage unified communication, through WebSocket node.js as the signalling protocol. A system of web real-time communication developed at the end of research to give an understanding and view of the opportunity given by WebRTC technology, such as leverage online distance-learning with a real-time communication, healthcare video conferencing, online video conference, self-service customer care and corporate online meeting.

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Wang, Jianyi. "The Performance and Future of QUIC Protocol in the Modern Internet." Network and Communication Technologies 6, no. 1 (July 7, 2021): 28. http://dx.doi.org/10.5539/nct.v6n1p28.

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Quick UDP Internet Connections (QUIC) protocol is a potential replacement for the TCP protocol to transport HTTP encrypted traffic. It is based on UDP and offers flexibility, speed, and low latency. The performance of QUIC is related to the everyday web browsing experience. QUIC is famous for its Forward Error Correction (Luyi, Jinyi, & Xiaohua, 2012) and congestion control (Hari, Hariharan, & Srinivasan, 1999) algorithm that improves user browsing delay by reducing the time spent on loss recovery (Jörg, Ernst, & Don, 1998). This paper will compare QUIC with other protocols such as HTTP/2 over TCP, WebSocket, and TCP fast open in terms of latency reduction and loss recovery to determine the role of each protocol in the modern internet. Furthermore, this paper will propose potential further improvements to the QUIC protocol by studying other protocols.

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Kapić, Zinaid, Aladin Crnkić, Edin Mujčić, and Jasna Hamzabegović. "A web application for remote control of ROS robot based on WebSocket protocol and Django development environment." IOP Conference Series: Materials Science and Engineering 1208, no. 1 (November 1, 2021): 012035. http://dx.doi.org/10.1088/1757-899x/1208/1/012035.

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Abstract The development of teleoperation systems, robots, or any physical part of the system can be costly and if something goes wrong it can lead to development overdue. Precisely for these reasons, engineers and scientists today resort to the development of simulated systems before the construction of a real system. Robot Operating System (ROS) is one of the most popular solutions for robot development, manipulation, and simulation. In this paper, we present a web application for remote control of a ROS robot. The robot is controlled via a web application that is used as a virtual Joystick. Also, in this paper, an experimental work analysis of the projected system is performed. Further research possibilities include upgrading the presented web interface, adding certain motion autonomy sensors, or integrating some path planning algorithms.

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Pustišek, Matevž, Anton Umek, and Andrej Kos. "Approaching the Communication Constraints of Ethereum-Based Decentralized Applications." Sensors 19, no. 11 (June 11, 2019): 2647. http://dx.doi.org/10.3390/s19112647.

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Those working on Blockchain technologies have described several new innovative directions and novel services in the Internet of things (IoT), including decentralized trust, trusted and verifiable execution of smart contracts, and machine-to-machine communications and automation that reach beyond the mere exchange of data. However, applying blockchain principles in the IoT is a challenge due to the constraints of the end devices. Because of fierce cost pressure, the hardware resources in these devices are usually reduced to the minimum necessary for operation. To achieve the high coverage needed, low bitrate mobile or wireless technologies are frequently applied, so the communication is often constrained, too. These constraints make the implementation of blockchain nodes for IoT as standalone end-devices impractical or even impossible. We therefore investigated possible design approaches to decentralized applications based on the Ethereum blockchain for the IoT. We proposed and evaluated three application architectures differing in communication, computation, storage, and security requirements. In a pilot setup we measured and analyzed the data traffic needed to run the blockchain clients and their applications. We found out that with the appropriate designs and the remote server architecture we can strongly reduce the storage and communication requirements imposed on devices, with predictable security implications. Periodic device traffic is reduced to 2400 B/s (HTTP) and 170 B/s (Websocket) from about 18 kB/s in the standalone-device full client architecture. A notification about a captured blockchain event and the corresponding verification resulted in about 2000 B of data. A transaction sent from the application to the client resulted in an about 500 B (HTTP) and 300 B message (Websocket). The key store location, which affects the serialization of a transaction, only had a small influence on the transaction-related data. Raw transaction messages were 45 B larger than when passing the JSON transaction objects. These findings provide directions for fog/cloud IoT application designers to avoid unrealistic expectations imposed upon their IoT devices and blockchain technologies, and enable them to select the appropriate system design according to the intended use case and system constraints. However, for very low bit-rate communication networks, new communication protocols for device to blockchain-client need to be considered.

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Chang, Chih-Tsan, Cheng-Yu Tsai, Hung-Hsu Tsai, Yuen-Ju Li, and Pao-Ta Yu. "An Online Multi-User Real-Time Seamless Co-Reading System for Collaborative Group Learning." International Journal of Distance Education Technologies 18, no. 4 (October 2020): 51–70. http://dx.doi.org/10.4018/ijdet.2020100104.

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This paper proposes an online multi-user real-time co-reading (OMURCOR) system to promote the performance of co-reading with collaborative learning. The OMURCOR system utilizes WebSocket to perform synchronization controls on co-reading to allow teachers and students to watch streaming videos together with less delay. Moreover, teachers utilize the system to synchronize control operations of videos on the student site, and the OMURCOR system can be integrated into a learning management system to strengthen students' interaction through co-reading. Unlike traditional platforms, the system supports grouping mechanisms during instruction. A survey was conducted with 104 participants. The bootstrapping square and partial least square approaches of the structural equation modeling (PLS-SEM) are employed via the SmartPLS tool to explore evidence of reliability and validity of the revised TAM. Experimental results reflected that six of the seven hypotheses were supported, and the proposed system has a significant impact on students' learning effectiveness during co-reading.

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Srinivasan, Lakshminarasimhan, Julian Scharnagl, and Klaus Schilling. "Analysis of WebSockets as the New Age Protocol for Remote Robot Tele-operation." IFAC Proceedings Volumes 46, no. 29 (2013): 83–88. http://dx.doi.org/10.3182/20131111-3-kr-2043.00032.

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Bisták, Pavol. "Remote Control Laboratory for Three-Tank Hydraulic System Using Matlab, Websockets and JavaScript." IFAC-PapersOnLine 53, no. 2 (2020): 17240–45. http://dx.doi.org/10.1016/j.ifacol.2020.12.1766.

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V.Y., Radygin, and Kupriyanov D. Yu. "Technological Support of Real-Time Interaction in Web Clients of Analytical Fraud Detection Systems." KnE Social Sciences 3, no. 2 (February 15, 2018): 450. http://dx.doi.org/10.18502/kss.v3i2.1576.

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The optimal tools selection for design of web-based visual mining client for real time fraud detection systems was discussed. The features of modern real time fraud detection software were analyzed. The necessity of transition to using of web-based technologies for client software design was shown. The market of web-frameworks and browser to web-server data exchange technologies were investigated. Basing on experimental research the most efficient toolset for design of web-client software for real time fraud detection systems was offered. Keywords: fraud detection, Visual Mining, real time data exchange, web-visualization, webSockets, MessageBus.

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Chodorek, Agnieszka, and Robert Chodorek. "Co-operation of signalling client with a simple signalling server." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 20, no. 1-2 (February 28, 2019): 424–31. http://dx.doi.org/10.24136/atest.2019.079.

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A simple signalling server, written in JavaScript and running in node.js run-time environment, was presented in the previous paper of the Authors [3]. In this paper, principles of building of WebRTC signalling client are presented, as well as exemplary communication between the client and the server, captured with the use of WireShark software tool during experimental WebRTC sessions. The paper includes also an example of application of Internet chat, that uses the simple signal-ling server [3]. The chat was built in two versions, which uses the same user interface and their signalling systems were build according to the same methodology, but differs in method of transmission of chat messages. The first version transmits user data (text messages of the chat) via signalling server, with the use of signalling channel. This version uses WebSocket interface for transmission of chat messages. In the case of the second version, user data are transmitted directly between web browsers, using WebRTC's channel dedicated for transmission of nonmedia data. This version transmits chat messages with the use of WebRTC's RTCDataChannel interface..

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