• Title/Summary/Keyword: Notification system

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A New Multiple Presence Servers Architecture in SIP Environment (SIP 환경에서의 새로운 다중 프레즌스 서버 구조)

  • Jang, Choonseo
    • Journal of the Korea Society of Computer and Information
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    • v.18 no.4
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    • pp.79-85
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    • 2013
  • In SIP(Session Initiation Protocol) environment, the presence server should process SIP SUBSCRIBE request messages including multiple presence resources addresses from users, and also precess massive notification messages from the subscribed presence resources. The load of the presence server increases as number of users increase, and it limits system extendability. Therefore a new multiple presence servers architecture has been suggested in this research. In this architecture presence servers can be added dynamically and each server's load can be controlled effectively as number of users increase. Each presence server can monitor current load status of entire presence system by using presence event notification package which newly has been suggested in this paper. When a particular presence server's load increases over predefined limit, the presence service processing is distributed by selecting a server which has the smallest load, or by generating a new server dynamically. In this system the overall load of the entire system can be controlled optimally and extendability of the system can be increased. For this purpose a new presence event notification package and presence information data format have been suggested. The performance of the proposed system has been evaluated by experiments. They shows 44.3% increase in SUBSCRIBE message processing time, and 43.1% increase in Notification message processing time.

Design of a Change Management Framework for Group Collaborative Systems (그룹협동 시스템을 위한 변화관리 모형의 설계)

  • 허순영
    • Journal of the Korean Operations Research and Management Science Society
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    • v.20 no.3
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    • pp.1-16
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    • 1995
  • Group collaborative systems are recently emerging to support a group of users engaged in common tasks such as group decision making, engineering design, group scheduling, or collaborative writing. This paper provides an change management framework for the group collaborative system to facilitate managing dependency relationship between shared objects and dependent user views, and coordinating change and propagation activities between the two in distributed computing environments. Specifically, the framework adopts an object-oriented database paradigm and presents several object constructs capturing dependency management and change notification mechanisms. First, it introduces change management mechanisms with transient shared objects and secondly, it extends them into presistent object computing environment by integrating transaction management mechanisms and change notification mechanisms. A prototype change management framework is developed on a commercial object-oriented database management system.

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Notification System for School Vehicles Based on ICT Technology for Living closely (생활 밀착형 ICT 기술 기반 통학차량 알림 서비스)

  • Lee, Hyo-Sang;Yoo, Sun-Jin;Cha, Sang-Hwa;Oh, Am-Suk
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2020.07a
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    • pp.581-582
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    • 2020
  • 본 논문에서는 블루투스 비콘을 활용하여, 학생의 통학차량에서 일어날 수 있는 사고를 미연에 방지하며, 실시간 안전을 확인 할 수 있는 서비스를 블루투스, 스마트폰 응용 서비스 플랫폼, 안드로이드 애플리케이션 등을 활용하여서 기존에 문제점을 보완하는 것과 함께 안전성을 강조하기 위해 블루투스 비콘를 활용한 생활밀착형 ICT 서비스 설계 및 구현을 제안 한다.

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A Study on the Calculation of Standard Data for Energy Use Plan of Industry Complex (산업단지 에너지사용계획을 위한 표준데이터 산정 연구)

  • Suh, Kwang-Soo
    • Journal of the Korean Solar Energy Society
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    • v.34 no.4
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    • pp.101-109
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    • 2014
  • The Consultation about Energy Use Plan is prescribed by the Energy Use Rationalization Act. This study calculated the Standard Data for Energy Use Plan of Industry Complex by the 9th Korean Standard Industrial Classification Divisions so that the energy demand reflecting the industrial technology change and characteristics of Manufacturing Divisions would predict. To achieve this aim, analysis on thousands of data in Energy Consumption Report Forms reported from industries which annual consumption of energy exceeds 2,000toe from 2009 to 2010 was carried out. The results showed that calculated overall mean fuel basic unit decrease, electricity basic unit increase and energy basic unit increase compared to that of the Notification No. 2002-130 of the Ministry of Commerce, Industry and Energy, therefore it means that heat source of energy facilities transferred from fuel to electricity. Also resultingly suggests that the related notification, code etc. are amended as soon as possible.

Event Routing Algorithms Using the Reverse Paths of Event Subscription Spanning Trees (이벤트 등록 스패닝트리의 역경로 정보를 이용한 이벤트 라우팅 알고리즘)

  • Ryu, Ki-Yeol;Lee, Jung-Tae
    • The KIPS Transactions:PartA
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    • v.9A no.1
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    • pp.19-28
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    • 2002
  • A new class of applications based on event interactions are emerging for the wide-area network such as Internet, which is characterized as loose coupling, heterogeneity. and asynchrony. Content-barred publish/subscribe systems are widely being studied to implement the extent notification service for wide-area networks. In this paper, we analyze some problems of the content-based routing algorithm in SIENA, a recently developed as a representative event notification service architecture, and develop an enhanced routing algorithm.

Garage Parking Indicator System Using Becoan-served Push Notifications (비콘의 푸쉬알림기능을 활용한 주차위치 확인 시스템)

  • Song, Inhye;Lee, Hongrae;Kim, Jiyoun;Moon, Mikyoeng
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.05a
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    • pp.766-767
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    • 2015
  • In recent days, mart or department which have large parking lots provide service for finding parked cars using NFC and GPS technology. In case using NFC, users should directly tap NFC tag, and GPS does not work inside the parking garage. In this paper, garage parking indicator system using becoan served push notification is described. By using this system, users can automatically be aware where they parked car when they enter into the huge parking lot. This system overcomes the weakness of the existing parking indicator systems, such as using NFC tag system and using GPS system.

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A New Presence Lists Service in SIP Environment (SIP 환경에서의 새로운 프레즌스 리스트 서비스)

  • Jang, Choon-Seo
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.12
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    • pp.67-73
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    • 2010
  • In SIP(Session Initiation Protocol) environment, the presence event notification operation makes presence service user to recognize presence information status changes of the other party. In conventional method, the user should send each SIP SUBSCRIBE message containing the address of the other party to the presence server. Furthermore each presence subscription requires refresh messages, and the amount of notification messages from the other party becomes large. These facts increases network traffic and the load of presence server. In this paper, to solve these problems a new presence list service has been suggested. It uses a presence list consists of URI of the other party and make it possible to subscribe by using one SUBSCRIBE message. So this method decreases the amount of SUBSCRIBE messages and refresh messages, and it also decreases the amount processing event notification messages from the subscribed the other party. And to increase the efficiency, a presence filtering method which enables to include some parts of selected presence information into the notification message body has been also suggested. The implemented system can reduce SIP message related network traffic and message processing time of the presence server. The performance of this proposed system has been evaluated by experiments, and the results showed decreasing of server processing time.

A Method for Effective Mobile Electronic Notification Service of Private Institutions

  • Kim, JongBae
    • International Journal of Advanced Culture Technology
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    • v.10 no.2
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    • pp.194-200
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    • 2022
  • Traditionally, postal services that produce and deliver paper-based notices have been the mainstream. The reason is that it has the function of distribution and proof of delivery in the postal delivery system as well as the advantage of information delivery through postal delivery. After all, for the purpose of distribution and proof of delivery, many organizations use paper-based postal notices. However, in recent years, it has been in the spotlight to produce a paper-based postal notice as an electronic notice and deliver information to a mobile device through the Internet. In this paper, we propose a safe interworking method for user identification information required for private institutions to transmit mobile electronic notices. In order for a private institution to accurately deliver an electronic notice to a mobile service subscriber, a means to confirm whether the private institution and the mobile device subscriber are the same person is required. In the mobile electronic notification service, the connecting information provided by the personal identity proofing agency is used as a means of user identification. Connecting information is called a resident registration number on the Internet and is one-way hash information that can only be created by the personal identity proofing agency designated by the government. In order to transmit a mobile electronic notice, it is necessary to share connecting information for the same user identification between the institution that requests the sending of the electronic notice and the institution that processes the sending of the electronic notice. Connecting information is personal information that can uniquely identify a user, and if it is disclosed, damage such as personal information infringement may occur. As such, it is necessary to prevent problems that may arise from misuse and abuse of connecting information as well as increase in the benefits of sending the mobile electronic notice. In this paper, a safe and effective mobile electronic notification service can be performed by suggesting a method for safe interworking of information related to the mobile electronic notification service.

Design of a Safe-driving Assistant System based on the IEEE WAVE (IEEE WAVE 기반 안전운전 지원 시스템의 설계)

  • Ko, Jae-Cheol;Lee, Hyuk-Joon
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.9 no.1
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    • pp.55-68
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    • 2010
  • IEEE WAVE is going through the final standardization process as the wireless access technology which provides drivers in high-speed vehicles with safety-related information and commercial services This paper presents an application-layer protocol for safe driving assistant service and a service system emulator based on this protocol. The safe driving assistant system includes a construction zone information service and a vehicle crash notification service, an emergency vehicle notification service, a probing service and a dilemma zone decision assistant service. Emulator System design for verifying functions of system, The emulator consists of an emulator server that models the movement of all vehicles and road states and a number of clients that models functional units for OBUs, RSUs, and a traffic control center).

Design of Falling Context-aware System based on Notification Service using Location Information and Behavior Data

  • Kwon, TaeWoo;Lee, Daepyo;Lee, Jong-Yong;Jung, Kye-Dong
    • International Journal of Internet, Broadcasting and Communication
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    • v.10 no.3
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    • pp.42-50
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    • 2018
  • The majority of existing falling recognition techniques provide service by recognizing only that the falling occurred. However, it is important to recognize not only the occurrence of falling but also the situation before and after the falling, as well as the location of the falling. In this paper, we design and propose the falling notification service system to recognize and provide service. This system uses the acceleration sensor of the smartphone to recognize the occurrence of a falling and the situation before and after the falling. In order to check the location of falling, GPS sensor data is used in the Google Map API to map to the map. Also, a crosswalk map converted into grid-based coordinates based on the longitude and latitude of the crosswalk is stored, and the locations before and after falling are mapped. In order to reduce the connection speed and server overload for real-time data processing, fog computing and cloud computing are designed to be distributed processing.