• Title/Summary/Keyword: Integration

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A GPS/DR Integration Kalman Filter with Integration Mode (이중 모드 GPS/DR 통합 칼만필터)

  • Seo, Hung-Seok;Lee, Jae-Ho;Sung, Tae-Kyung;Lee, Sang-Jeon
    • Journal of Institute of Control, Robotics and Systems
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    • v.7 no.3
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    • pp.269-275
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    • 2001
  • In land navigation applications, two kinds of GPS/DR integration schemes are commonly used; the loosely-coupled integration scheme and the tightly-coupled one. The loosely-coupled integration filter has a simple structure and is easy to implement. When the number of visible satellites is insufficient, however, it cannot calibrate the errors of the DR sensors. On the contrary the tigthly-coupled integration filter can sup-press the growth of the error in the DR output even when the visibility is poor. However, it has larger com-putation load due to the state dimension and is inconsistent because of the variation in the measurement dimension. This paper presents a GPS/DR integration scheme with dual integration mode. During when the number of visible satellites is sufficient, the proposed scheme operates in a loosely-coupled integration mode. When the visibility becomes poor, it is switched into a tightly-coupled integration mode. Consequently, the pro-posed scheme can calibrate the DR sensors even when the visibility is poor. In addition, its computation time remains constant even if the number of visible satellites increases. Field experiment results show that the performance of the proposed integration method is almost similar to that of the tightly-coupled one.

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Study on the Post-Merger Integration of IT Systems in the Retail Industry: The Case of M&A of a Department Store

  • Kim, Gyu-Bae;Hwang, Hee-Joong
    • Journal of Distribution Science
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    • v.11 no.9
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    • pp.25-29
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    • 2013
  • Purpose - This study aimed to examine how the integration of IT systems was applied in the merger and acquisition (M&A) process in a Korean retail industry, based on the conceptual framework of a combination of related, existing literature. Research design, data, methodology - We employed the case study method, which involved literature reviews and interviews. We conducted a documentary survey and interviews regarding the M&A case for company A. Results - Company A had an integration strategy and plan with IT expertise before it began integrating both IT systems in D-Day. The IT integration of both systems was completed efficiently and effectively. Company A utilized not just one but all integration options, which was done in stages and according to situation. Conclusions - Companies should develop an integration strategy and have a clear integration plan with IT expertise in order to achieve successful integration. Companies trying to integrate IT systems during an M&A process can utilize all integration options in consideration of their business context and IT system conditions.

The Effect of Short-Term Intensive Sensory Integration Therapy Program on a Child with Sensory Modulation Disorder(Mixed Pattern) : Case Study (혼합형 감각조절장애 아동에 대한 단기집중 감각통합치료 프로그램의 효과-사례보고)

  • Kim, Eun-Young;Ji, Seok-Yeon
    • The Journal of Korean Academy of Sensory Integration
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    • v.4 no.1
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    • pp.37-46
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    • 2006
  • Objective : This single-subject study explored the effect of short-term intensive sensory integration therapy program which was provided in a 2006 sensory integration treatment course on adaptive response of a four-year-girl with sensory modulation disorder(mixed pattern). Method : Based on results of the assessment to the child, her therapist offers an organized sensory integration program during four days. Results : Improvement of child's movement quality and variety in physical environment in therapy rooms and interaction with her therapist were observed. Conclusions : This report of the case will be helpful for occupational therapists who plan to intervent with a short-term intensive sensory integration therapy program. In addition, the need for consideration of consultation with the child's parents is discussed.

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Survey on the Integration of Early Childhood Education and Childcare (유아교육과 보육의 통합에 관한 의견 분석 : 유치원·보육시설 원장과 교사를 중심으로)

  • Kim, Eunseol;Shin, Nary;Choi, Hyesun
    • Korean Journal of Child Studies
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    • v.28 no.4
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    • pp.197-208
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    • 2007
  • This research investigated the opinions of teachers and directors on the integration of early childhood education and childcare centers in Korea. Participants were 800 teachers and directors working with young children in kindergartens and childcare centers. The survey consisted of questions regarding reasons, feasibility, and means of integration, as well as tasks that should be achieved prior to integration. Results showed that the participants were skeptical about executing the integration in practice even though they agreed to the integration of education and care in early childhood. They reported the integration of auspices should take place prior to integration of education and care in early childhood.

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A Study on Logistics Integration and Logistics Performance of Shipping Firms in International Logistics (국제물류에서 해운기업의 물류통합과 물류성과에 관한 연구)

  • Yun, Kwang-Woon;Ha, Myung-Shin;Bae, Hee-Sung
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.26
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    • pp.143-172
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    • 2005
  • The biggest exchange of international environment of shipping logistics in 21 century should appear ultra-mega container ships on the shipping market. The competitive trend of large size container ship was based on economics of scale among the international shipping business. In the environment, shipping firms consider the integration of freight forwarder and shipper in the international logistics process. The aims of this research analyse a relation between the environment uncertainty and logistics information system(LIS) and the integration and resolve the integration and its impact on logistics performance. The research methodology of this research analyse structural equation modeling on the relation of variables. The results of research are as follows. First, Environmental uncertainty significantly influences the internal integration and the external integration. Second, LIS has an influence on the logistics integration by providing the foundation for LIS utilization in international logistics process. Third, the internal integration significantly influences a logistics performance, which implies that firms should promote interaction and collaboration through internal process integration to achieve logistics performance as the logistical cost and service. But the external integration is not significantly a logistics performance.

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Drivers Influencing Demand Chain Integration Strategy: Analysis of Intelligent Collaboration Cases (수요사슬 통합전략에 영향을 미치는 동인에 관한 연구: 지능형 협업 사례 분석)

  • Kim Yon Tae;Kim Chulsoo
    • Journal of Intelligence and Information Systems
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    • v.10 no.2
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    • pp.189-209
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    • 2004
  • The collaboration between businesses in a demand chain has three layers: Integration, Exchange, and Synchronize. The latter the layer is, the stronger the collaboration gets. This paper investigated drivers influencing intelligent demand chain integration strategy (supply integration, demand integration, demand chain integration) in Korea manufacturing and services. The drivers are classified into two types: rational efficiency driven and bandwagon driven. We find tile differences in the characteristics of drivers affecting the strategies. Besides, this study suggests the better integration strategy for Korea firms. In conclusion it says that demand integration strategy is chosen to improve efficiency, whereas supply integration strategy is influenced by external pressure.

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Accuracy Analysis of GLONASS Orbit Determination Strategies for GLONASS Positioning (GLONASS 측위를 위한 위성좌표 산출 정확도 향상 방안)

  • Lee, Ho-Seok;Park, Kwan-Dong;Kim, Hye-In
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.6
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    • pp.573-578
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    • 2010
  • Precise determination of satellite positions is necessary to improve positioning accuracy in GNSS. In this study, GLONASS orbits were predicted from broadcast ephemeris using the 4th-order Runge-Kutta numerical integration method and their accuracy dependence on the integration step and the integration time was analyzed. The 3D RMS (Root Mean Square) differences between the results from I-second integration step and 300-second integration step was about 3 cm, but the processing time was one hundred times less for the I-second integration time case. For trials of different integration times, the 3D RMS errors were 8.3 m, 187.3 m, and 661.5 m for 30-, 150-, and 300-minutes of integration time, respectively. Though this integration-time analysis, we concluded that the accuracy gets higher with a shorter integration time. Thus we suggest forward and backward integration methods to improve GLONASS positioning accuracy, and with this method we can achieve a 5-meter level of 3-D orbit accuracy.

A Study on Logistics Information System Integration: in case of Korea Post (물류정보시스템 통합에 관한 연구 : 한국우정사업본부의 사례를 중심으로)

  • Han, Young-Soo;Jung, Hae-Yong
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.3
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    • pp.217-226
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    • 2009
  • In this paper, we analyze process of implementing and successful enabler of Postal Logistics Integrated Information Systems(PostNet) through a case study on Korea Post. PostNet was integrated by considering contingently organizational integration (organizational structure redesign), strategical integration (business process reengineering), and technical integration(data integration, application integration, and integrated platform implementation). And also integration was implemented for supporting three aspects. PostNet has implication for advanced integration with business mission and operational efficiency by comparing integration with physical level and hardware level. Korea Post has the biggest logistics network, organization, and service in logistics industry area. The results of this paper will suggest theoretical framework for the future information system integration, and will be utilized as a practical guideline for the information system integration.

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An Empirical Study on the Effect of International Standards Management System Integration on Business Performance - Focused on Quality, Environment and Health & safety management system- (국제표준 경영시스템 통합이 경영성과에 미치는 영향에 대한 실증적 연구 - 품질, 환경 및 안전·보건 경영시스템 중심으로 -)

  • Kim, Yeun Sung;Suk, Ho Sam;Sung, Do Kyong
    • Journal of the Korean Society for Quality Management
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    • v.45 no.4
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    • pp.781-810
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    • 2017
  • Purpose: This paper studied about the integration for management system of representative international standard related to sustainable development. The well-known International standards such as ISO 9001, ISO 14001 and OHSAS 18001 (ISO 45001) can be operated in accordance with the organizational situation individually, or in a variety of ways of integration. It can be applied to help organizations utilizing the newly established "ISO IEC Directive Part1 Annex SL", when integrating quality, environmental and safety & health management systems based on international standards. Methods: We conducted an empirical survey of management executives and experts to study how three factors (management systems, organizational capabilities and integration methods) could affect business performance. Results: The questionnaire was analyzed using AMOS structural equation model. Quality, environmental and safety and health management systems affected management performance, and integration methods of management system affected business efficiency, risk performance and financial performance. Integration method is also important because organizational competence affects various aspects of integrated management. However, factors that affect integration should also be considered in terms of organizational capabilities. This is because organizational capacity influences the integration plan. Conclusion: To integrate the document system at the strategic level, management should actively participate in integrated operations to integrate organizations, eliminate duplicate tasks, and foster document integration experts to reflect the characteristics of individual standard. In the case of document integration, quality management is focusing, but once ISO 45001 is issued, the use of Annex SL is increasing, and Quality, environment and safety & health integration will also be expanded. It is possible to increase the effect of integration by strategically approaching and establishing organization document system rather than simple integration according to management system standard arrangement.

Using Canadian Occupational Performance Measure - On the Effects of Sensory Integration Treatment to the Daily-Life Task Performance of a Child with a Cerebral Palsy (감각통합치료가 뇌성마비 아동의 일상생활 기능에 미치는 효과 - 캐나다 작업수행 측정을 이용하여 -)

  • Kwon, Boon-Jung;Park, Ji-Young
    • The Journal of Korean Academy of Sensory Integration
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    • v.1 no.1
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    • pp.53-59
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    • 2003
  • Objective : The objective of this case study is to search the effects of sensory integration treatment. First we have taken a child with a cerebral palsy and given him/her sensory integration treatment. Then, we intended to look into whether the child performed his daily-life tasks and how satisfactory the parents were with the treatment. Methods : We have chosen a child with a cerebral palsy and tested his sensory integration functions. Applying the 30 minutes-sensory integration treatment twenty times to the child, we compared the result of the treatment using Canadian Occupational Performance Measure. We counseled the parents of the child before and after the treatment. Results : We have rated the problems with the degrees of importance referring to the parents. Important problems include controlling eliminations, having meals, moving by self, interacting with peer groups, and performing delicate hand-movements. The score of the in the performance is 1.2 and the score of the degree in the satisfaction is 1.4 compared with the total score. Conclusion : We have concluded that the sensory integration treatment has the effective result to the daily-life task performances of a child with a cerebral palsy, a kind of sensory integration dysfunction and satisfies the child's parents after this case study.

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