• Title/Summary/Keyword: real-time web server

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Implementation of Monitoring and Control System for Fire Engine Pump using the AJAX (AJAX를 이용한 소방엔진펌프의 모니터링과 제어 시스템 구현)

  • Yang, Oh;Lee, Heon-Guk
    • Journal of the Semiconductor & Display Technology
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    • v.15 no.3
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    • pp.40-45
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    • 2016
  • In this paper, the fire engine pump is controlled and monitored by the AJAX (Asynchronous Javascript and Xml) in the web server. The embedded system with built-in system having a processor and a memory of high performance occurs many problems in transmitting the large amount of data in real time through the web server. The AJAX is different from HTML (Hyper Text Makeup Language) with java script technology and can make RIA (Rich Internet Application). It process the necessary data by using asynchronous and it take advantage of usefulness, accessibility, a fast response time. Using AJAX can build up web server with real time and monitoring that fire engine pump status, check processing pump memory in the event of fire, also remotely monitors can do. The web server system can control the fire engine pump as like the black box. The experimental results show the effectiveness and commercialize possibility.

Development of a High Performance Web Server Using A Real-Time Compression Architecture (실시간 압축 전송 아키텍쳐를 이용한 고성능 웹 서버 구현)

  • 민병조;강명석;우천희;남의석;김학배
    • Journal of the Korea Computer Industry Society
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    • v.5 no.3
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    • pp.345-354
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    • 2004
  • In these days, such services are popularized as E-commerce, E-government, multimedia services, and home networking applications. Most web traffics generated contemporarily basically use the Hyper Text Transfer Protocol(HTTP). Unfortunately, the HTTP is improper for these applications that comprise significant components of the web traffics. In this paper, we introduce a real-time contents compression architecture that maximizes the web service performance as well as reduces the response time. This architecture is built into the linux kernel-based web accelerating module. It guarantees not only the freshness of compressed contents but also the minimum time delay using an server-state adaptive algorithm, which can determine whether the server sends the compressed message considering the consumption of server resources when heavy requests reach the web server Also, We minimize the CPU overhead of the web server by exclusively implementing the compression kernel-thread. The testing results validates that this architecture saves the bandwidth of the web server and that elapsed time improvement is dramatic.

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Development of a High Performance Web Server Using A Real-Time Compression Architecture (실시간 압축 전송 아키텍쳐를 이용한 고성능 웹서버 구현)

  • Min Byungjo;Hwang June;Kim Hagbae
    • The KIPS Transactions:PartC
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    • v.11C no.6 s.95
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    • pp.781-786
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    • 2004
  • In these days, such services are popularized as E-commerce, E- government, multimedia services, and home networking applications. Most web traffics generated contemporarily basically use the Hyper Text Transfer Protocol(HTTP). Unfortunately, the HTTP is improper for these applications that comprise significant components of the web traffics. In this paper, we introduce a real-time contents compression architecture that maximizes the web service performance as well as reduces the response time. This architecture is built into the linux kernel-based web accelerating module. It guarantees not only the freshness of compressed contents but also the minimum time delay using an server-state adaptive algorithm, which can determine whether the server sends the compressed message considering the consumption of sewer resources when heavy requests reach the web server. Also, We minimize the CPU overhead of the web server by exclusively implementing the compression kernel-thread. The testing results validates that this architecture saves the bandwidth of the web server and that elapsed time improvement is dramatic.

A Design of Inter-Working System between Secure Coding Tools and Web Shell Detection Tools for Secure Web Server Environments (안전한 웹 서버 환경을 위한 시큐어코딩 도구, 웹쉘 탐지도구 간의 상호연동 시스템 설계)

  • Kim, Bumryong;Choi, Keunchang;Kim, Joonho;Suk, Sangkee
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.11 no.4
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    • pp.81-87
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    • 2015
  • Recently, with the development of the ICT environment, the use of the software is growing rapidly. And the number of the web server software used with a variety of users is also growing. However, There are also various damage cases increased due to a software security vulnerability as software usage is increasing. Especially web shell hacking which abuses software vulnerabilities accounts for a very high percentage. These web server environment damage can induce primary damage such like homepage modification for malware spreading and secondary damage such like privacy. Source code weaknesses checking system is needed during software development stage and operation stage in real-time to prevent software vulnerabilities. Also the system which can detect and determine web shell from checked code in real time is needed. Therefore, in this paper, we propose the system improving security for web server by detecting web shell attacks which are invisible to existing detection method such as Firewall, IDS/IPS, Web Firewall, Anti-Virus, etc. while satisfying existing secure coding guidelines from development stage to operation stage.

Web-based Servo Motor Controller Design with Real-time Micro Embedded Operating System

  • Kim, Ga-Gue;Lee, Hyung-Seok
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.1655-1658
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    • 2004
  • In this paper, we design and implement remote servo motor control system with real-time micro embedded operating system. The system, where controller and camera image grabber are mounted, handles control commands transmitted from a remote PC web browser. A hard real-time servo motor driver running on the real-time micro embedded OS and then a digital control application which confirms precise sampling time intervals is constructed. Frame grabber images transmitted from camera are saved in a image data format to view on remote PC web browser.

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Real-Time Earlobe Detection System on the Web

  • Kim, Jaeseung;Choi, Seyun;Lee, Seunghyun;Kwon, Soonchul
    • International journal of advanced smart convergence
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    • v.10 no.4
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    • pp.110-116
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    • 2021
  • This paper proposed a real-time earlobe detection system using deep learning on the web. Existing deep learning-based detection methods often find independent objects such as cars, mugs, cats, and people. We proposed a way to receive an image through the camera of the user device in a web environment and detect the earlobe on the server. First, we took a picture of the user's face with the user's device camera on the web so that the user's ears were visible. After that, we sent the photographed user's face to the server to find the earlobe. Based on the detected results, we printed an earring model on the user's earlobe on the web. We trained an existing YOLO v5 model using a dataset of about 200 that created a bounding box on the earlobe. We estimated the position of the earlobe through a trained deep learning model. Through this process, we proposed a real-time earlobe detection system on the web. The proposed method showed the performance of detecting earlobes in real-time and loading 3D models from the web in real-time.

Development of the Remote Minitoring System of Coastal Ocean Environment based on WWW and PCS (WWW와 PCS를 이용한 원격해양관리 시스템의 구축)

  • 이지홍;노영재;하인수;김인식
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.167-170
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    • 2000
  • In this paper, we develope a intelligent monitoring system of Coastal Ocean Environment based on WWW(World Wide Web) and PCS(Personal Communication System). This system have capability of real time processing of enviromental variable from various sensors. The system is composed of three part. The first part is mathematical modeling of real ocean. The second is construction server for real time web page. And the third is developing the measurement system which has wireless(PCS) interface to server.

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Design and Implementation of Event-driven Real-time Web Crawler to Maintain Reliability (신뢰성 유지를 위한 이벤트 기반 실시간 웹크롤러의 설계 및 구현)

  • Ahn, Yong-Hak
    • Journal of the Korea Convergence Society
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    • v.13 no.4
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    • pp.1-6
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    • 2022
  • Real-time systems using web cralwing data must provide users with data from the same database as remote data. To do this, the web crawler repeatedly sends HTTP(HtypeText Transfer Protocol) requests to the remote server to see if the remote data has changed. This process causes network load on the crawling server and remote server, causing problems such as excessive traffic generation. To solve this problem, in this paper, based on user events, we propose a real-time web crawling technique that can reduce the overload of the network while securing the reliability of maintaining the sameness between the data of the crawling server and data from multiple remote locations. The proposed method performs a crawling process based on an event that requests unit data and list data. The results show that the proposed method can reduce the overhead of network traffic in existing web crawlers and secure data reliability. In the future, research on the convergence of event-based crawling and time-based crawling is required.

Performance of Internet DGPS Using Active X Control (Active X 컨트롤을 이용한 인터넷 DGPS 구현)

  • 강준묵;이용욱;이은수;조성호
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2003.04a
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    • pp.37-44
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    • 2003
  • The aim of this research was performance of Web-based real time DGPS using MS visual basic 6.0 Active X control. This system supported the navigation of rover by transmitting the DGPS correction information of base station via internet and monitored the moving of rover by displaying the corrected results received from rover as well as permitting Web users monitoring for rover. The Web-based DGPS server and the client system using MS visual basic 6.0 Active X control for DGPS displayed on Web-browser with the pre analysis was constructed and the system loading test via Web-browser was performed after debugging this system through the static GPS test and publishing it on Web. Also, the wireless internet DGPS test on Web by changing the distance between a base station and a rover was carried out. As the result of the test, the real time DGPS could be performed by transmitting the correction message which calculated from the server system to the client system continually. The rover could be managed by displaying the location information which received from the client system. Other users also could monitor the rover by connecting with this system via internet in real time.

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Implementation of Web-based Reporting System (웹 기반 리포팅 시스템 구현)

  • Kim, Young-Kyun
    • Journal of the Korea Computer Industry Society
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    • v.7 no.5
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    • pp.495-502
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    • 2006
  • This paper describes how to implement reporting system for web-based information system. Reporting system is the S/W module that user is able to produce output of data in formal format. In Client/Server system, remote user can make formal output with client-side reporting component module. This client reporting component is usually system dependent. With web based information system, intranet, evolving, this client/server system need to he migrated to web-based reporting system. Reporting system component support multi-processing and real-time text/graphic output of server data. Ant Client can save or pint web page of client module. Especially, for real test its function and user interface, this reporting component is adopted in real network management system. The result shows that this reporting system component is very smart and excellent for real time web based monitoring system.

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