Network Service System Research Articles

지능형 도시시설물 관리를 위한 네트워크 기반 도시공간객체식별자(UOID) 시스템 개발

최근 u-City, u-EcoCity, Smart City 구축 등을 통해 기존 도시를 혁신하려는 움직임이 있으며, 도시시설물관리체계 또한 단순한 DB대장 관리를 넘어서 최신 IT기술을 이용하여 실시간 모니터링 및 사전대처를 하려는 다양한 개발들이 진행중이다. 본 연구에서는 이러한 도시시설물 관리체계의 혁신을 위해 도시공간객체의 표준화된 위치기반 ID체계인 도시공간객체식별자(UOID)를 제시하였으며, 네트워크 기반으로 관리하고 다양한 서비스를 연계시키기 위한 UOID 네트워크 서비스 시스템을 개발하였다. 세종시 테스트베드를 통해 시스템을 시험검증하여 완결성 및 안정성을 확보중이며, 도시공간정보플랫폼의 서비스 모듈로 탑재되어 향후 u-City 등에서 다양한 u-Service에 활용가능하도록 실용화를 추진하고 있다. Recently, Urban has been innovated through u-City and Smart City. Urban facility management system is developing using the latest IT technology for real-time monitoring and prevention. In this paper, we propose an UOID(Unique Object IDentification), a standard location-based ID system for urban facility object and develop the UOID service system based on network for innovation of urban facility management system. The system has been tested through Test-bed for connectivity and stability. We wish that the proposed UOID and network service system manages u-City facilities effectively and also provides various ubiquitous services to the citizen, one of the integrate service of u-City platform.

A POWER CONSUMPTION ACTIVITY BASED HETEROGENEOUS SOA FRAMEWORK FOR CONTEXT-AWARE HOME SERVICES

The home network is one of the emerging areas from the last century. However, the growth of the home network market is stationary at present. This paper describes the limitations of the home network system and the requirements for overcoming the current limitations. Also described is a new home network service system known as COWS and its easy installation and scalable operation. COWS consists of power consumption monitor and control devices along with a service server that is a complementary combination of Open Service Gateway initiative (OSGi) and web services. A home network system has a dynamic, heterogeneous, distributed, and scalable topology. Service Oriented Architecture (SOA) has been proposed as a solution that satisfies the requirement of a home network, and OSGi and web services are two successful SOA-based frameworks. An included service server has a flexible architecture that consists of a core and extendable service packages. A power consumption monitor and control function provides useful context information for activity-based context-aware services and optimizes the power consumption. The system can be installed easily into existing and new houses to solve the current barrier of the popularization of home network services.

Analysis and Estimation of Processes Capacity Based on Quality Control

Under the conditions of the mode of production drifting towards extensive collaboration mode, the process capacity oriented to machining factory should be analyzed and estimated, which is the essential precondition for factory to decide whether to accept a piece of manufacturing order form. Based on the situation, with the production quality checking and analysis focused, a kind of process capacity analysis and estimation was brought forward for the collaborational machining factory under the mode of quality control. The model based on quality driven for the process capacity estimation was provided to solve the critical problem. And the network service system of process capacity estimation was established, by making full use of quality function analysis (QFD), similar procedure query and rough set theory combined with the character parameters such as work-part size tolerance, surface roughness, manufacturing time, cost and etc. Furthermore, some key enabling technologies were instigated in detail, including quality control technology oriented low volume customization and process capacity analysis technology based on rough set (RS) theory.

Optical fiber cable and wiring techniques for fiber to the home (FTTH)

NTT group’s new medium-term management strategy calls for 20 million optical subscribers by 2010, and NTT Laboratories is pushing forward to meet this goal. Before that date, an efficient optical access network must be constructed, and afterwards, when the era of mass optical communications finally arrives, the facilities and equipment supporting the network will have to be effectively operated and maintained. At NTT Access Network Service Systems Laboratories, we are developing various technologies to correspond to the massive deployment of optical broadband services. We are also developing various new technologies for efficiently operating optical access network systems that will continue to expand in the future, and to supply our customers with good services. This paper provides an overview of the new optical access network system technologies that are being developed at NTT Access Network Service Systems Laboratories to address these issues.

홈네트워크가 주택선택에 미치는 영향

고가의 주상복합아파트를 위주로 보급되었던 홈네트워크 서비스가 대중화되어 최근에는 일반아파트에도 많이 공급되고 있다. 그러나 최첨단 IT산업이며 생활의 편리성을 높인다는 기치아래 수요의식이 정확히 파악되지 않은 채 공급되고 있다. 따라서 본 연구에서는 국내의 홈네트워크 서비스의 발전현황을 제고하였으며 설문조사를 통해 홈네트워크에 대한 인지도 및 그에 따른 주택선택에 미치는 수요자의 의식을 조사 및 분석하였다. 그 결과 홈네트워크에 대한 인지도는 상당하였으며 향후 주택구입에도 큰 변수로 작용이 예상되었다. 하지만 현재와 같이 일괄적으로 공급되고 있는 방식에 대해서는 부정적 반응을 보였다. 또한 수요자가 선호하는 서비스 항목은 다양하였으며, 그로 인해 일반주택보다 부가적인 비용을 지불하더라도 선택할 의사를 보였다. 이는 향후 홈네트워크 서비스에 대해 수요자들이 상당한 기대를 하고 있다는 것을 보여주며, 따라서 수요자의 개별 특성에 맞는 다양한 홈네트워크 서비스 및 공급체계로 발전되어야 할 것이다. The home network service which has been set up in the high price residential-commercial composition building of high price is supplied in the general apartment plentifully recently. But it has been supplied without accurate grasp under the aim of the most up-to-date IT industry and the convenient characteristic of life. In this research we research the present condition of network service in domestic and analyze the recognition degree of network service and the need using survey method. We find that the recognition degree is very high and a main considerable factor to purchase a house. However they prefer to be supplied as option rather than as lump. The consumers are ready to pay an addition expense for home network. It explain that they expect considerably home network service and home network system should be developed as considering the various individual characteristics.

Study on Networked Technical Service System Oriented Production Process

To improve the quality and efficiency of technical service, shorten the producing cycle of product, a new mode of technical service is presented, which is networked technical service based on the multi-Agent technique, network technique and modern communications technique. The architecture and function of the networked technical service system oriented production-NTSS are researched, and the key technologies including multi-Agent system, virtual assembling oriented the process of production and the assignment and rank of technical service information are studied. The workflow of NTSS is discussed, and base on these theories a prototype system is established, and the security, practicability and high efficiency of NTSS are proved.

KEY TECHNIQUE OF RP&M NETWORKED SERVICE SYSTEM

The structure of the networked integrated service system established on the basis of distributed component structure is expounded, and corresponding functional modules are designed according to each component feature. An index system of RPM process decision including goal layer, criterion layer and scheme layer is proposed. A new method for RPM process selection based on expert system and fuzzy synthesis evaluation is presented and the support system for RPM manufacture process selection is set up. Based on the analysis of process planning of RPM collaborative manufacture, different types of RPM process monitoring points are determined according to the time scale principle,which provides the theoretical basis for the process management and monitoring. The implementation of the networked service system verifies its capacity of supporting enterprises with the convenient and rapid remote development of new products.

A web-based manufacturing service system for rapid product development

This paper proposes a novel integrated system of rapid product development based on rapid prototyping, and develops a networked manufacturing service system which offers better support for the rapid product development in small and medium sized enterprises by taking full advantage of the quickly evolving computer network and information technologies. The architecture of the networked manufacturing service system is presented. Furthermore, some of the key issues, including modelling and planning a manufacturing chain, selecting feasible collaborative manufacturers, queuing a manufacturing task, using the synchronously collaborative work environment, and constructing a suitable running platform, are described in detail. Java-enabled solution, together with web techniques, is employed for building such a networked service system. Finally, an actual example is provided illustrating the application of this service system.

特集 電算機応用 販売システム

Sales Information System (SIS) was rebuilt up to cope with marketing competition getting harder by improving customer services and changing the way of business of sales departments. SIS was built to administrate sales information, production information and distribution information as a whole. This system consists of four sub-systems, which are “Daido network service”, “Order entry system”, “Order adjusting system”, “Specification administration system” and “Price administration system”. Daido network service system exchanges information data such as order application, process progress, storing, shipping, millsheet and so on with users, trading companies and service centers.This system went into service in May 1991, and it has enjoyed good reputations from users since then. New functions have been already added.

Hierarchical service control scheme for intelligent network services

With the introduction of communication services into business activities, such as telemarketing, customer requirements for these services are becoming more varied. Since communication service has become competitive, quick provision of services has become important. This paper proposes a hierarchical service control scheme aimed at achieving service specification independence and the software architecture of an experimental intelligent network service system based on this new scheme. In the proposed new scheme, elementary functional parts are prepared beforehand and a service is realized using interpreter control based on the information about an execution order of functional parts. To localize modifications in software when a new service is introduced, functional parts are arranged in a hierarchical manner. This experimental system can change complicated service specifications in a few minutes. Processing volume is about half of that for an existing system in which service specification is described by a programming language and service associated data are managed by a common data management program.

The Change of Bus Network Service System in the Central Area of Kanagawa Prefecture

The Change of Bus Network Service System in the Central Area of Kanagawa Prefecture