• Title/Summary/Keyword: Input Waiting Time

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A Design and Implementation of Dynamic Electronic Map Creation System for Mobile phone Map Service Using Raster Method (래스터 방식을 이용한 모바일 전화기용 지도 서비스를 위한 동적 전자 지도 생성 시스템 설계 및 구현)

  • Seo Ii-Soo;Nam In-Gil;Lee Jeong-Bae;Choi Jin-Oh;Kim Mi-Ram
    • The KIPS Transactions:PartD
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    • v.12D no.1 s.97
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    • pp.151-158
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    • 2005
  • In order to use the existing map data base in the mobile phone, the dynamic creation technique of the radio map which will be able to be converted into the raster image and transmitted was proposed. We transferred the client module functions such as the coordinate conversion, data compression and decoding to server, and made driving of JAVA browser in the mobile phone which has the restricted resources possible for the dynamic creation of the radio map. We made the radio electronic map service possible without map data base for the mobile phone use only by performing the general work of the map at the sever. And we guaranteed the client waiting time less then the limit time by performing the filtering work of the map at the server also. After we input the keyword at the user interface for searching the region or facility, and verified the performance of the proposed technique by confirming that the raster electronic map usable at the mobile phone was created dynamically.

A Study on Authentication Technique based on OSGi Service Platform (OSGi 서비스 플랫폼 기반의 인증 기법에 관한 연구)

  • I, Chang-Uk;Hong, Won-Gi;Chang, Hoon
    • Journal of KIISE:Computer Systems and Theory
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    • v.36 no.5
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    • pp.387-395
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    • 2009
  • The establishment of security architecture is essential because security vulnerabilities occur such as user's unjustifiable connection for the opened gateway and access to resources without permission in OSGi service platform environment. In this paper, it proposes a authentication technique for an Automatic user authentication which is used the Symmetric Key and the Service bundle authentication to consider the constraints of the hardware in the OSGi service platform environment. Typically, the type of entering a password is used for the user authentication mechanism however OSGi platform environment studies not entering the password but using MAC address and encrypted identifier of the automatic user authentication mechanism because the devices are limited in their input. In this paper, the Symmetric Key is used for bundle authentication mechanism. Therefore operation becomes quick and secure authentication process has been successfully completed by using the time data and a ticket which contains a license. Based on these two different authentication mechanisms, it could eliminate the constraints of resources and improve the convenience of users and administrators. Also it shows an effect from omitting the waiting time to enter a password and reducing operations which need for authentication in the OSGi service platform environment.

Design of Multimodal User Interface using Speech and Gesture Recognition for Wearable Watch Platform (착용형 단말에서의 음성 인식과 제스처 인식을 융합한 멀티 모달 사용자 인터페이스 설계)

  • Seong, Ki Eun;Park, Yu Jin;Kang, Soon Ju
    • KIISE Transactions on Computing Practices
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    • v.21 no.6
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    • pp.418-423
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    • 2015
  • As the development of technology advances at exceptional speed, the functions of wearable devices become more diverse and complicated, and many users find some of the functions difficult to use. In this paper, the main aim is to provide the user with an interface that is more friendly and easier to use. The speech recognition is easy to use and also easy to insert an input order. However, speech recognition is problematic when using on a wearable device that has limited computing power and battery. The wearable device cannot predict when the user will give an order through speech recognition. This means that while speech recognition must always be activated, because of the battery issue, the time taken waiting for the user to give an order is impractical. In order to solve this problem, we use gesture recognition. This paper describes how to use both speech and gesture recognition as a multimodal interface to increase the user's comfort.

An Evaluation of Development Plans for Rolling Stock Maintenance Shop Using Computer Simulation - Emphasizing CDC and Generator Car - (시뮬레이션 기법을 이용한 철도차량 중정비 공장 설계검증 - 디젤동차 및 발전차 중정비 공장을 중심으로 -)

  • Jeon, Byoung-Hack;Jang, Seong-Yong;Lee, Won-Young;Oh, Jeong-Heon
    • Journal of the Korea Society for Simulation
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    • v.18 no.3
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    • pp.23-34
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    • 2009
  • In the railroad rolling stock depot, long-term maintenance tasks is done regularly every two or four year basis to maintain the functionality of equipments and rolling stock body or for the repair operation of the heavily damaged rolling stocks by fatal accidents. This paper addresses the computer simulation model building for the rolling stock maintenance shop for the CDC(Commuter Diesel Car) and Generator Car planned to be constructed at Daejon Rolling Stock Depot, which will be moved from Yongsan Rolling Stock Depot. We evaluated the processing capacity of two layout design alternatives based on the maintenance process chart through the developed simulation models. The performance measures are the number of processed cars per year, the cycle time, shop utilization, work in process and the average number waiting car for input. The simulation result shows that one design alternative outperforms another design alternative in every aspect and superior design alternative can process total 340 number of trains per year 15% more than the proposed target within the current average cycle time.