• International Journal of Internet, Broadcasting and Communication
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• 제13권2호
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• pp.136-144
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• 2021

Railroad Systems, which are national infrastructure industries, cause unexpected property and human damage if they fail to function while operating. Accordingly, railroad facilities supporting the railroad system are areas where high reliability and safety are required. However, it is time for systematic and scientific maintenance to be taken away from the traditional maintenance methods, as the nation's railroad facilities are now aging seriously. The purpose of this study was to secure the safety and reliability of the aging railroad communication facilities and to improve their performance. The research subjects were selected as a precision diagnosis process for railroad communication facilities, and improvement points were derived through detailed precision diagnosis process analysis. It is deemed that this study can contribute based on securing stability, improving reliability, and continuous improvement of railroad communication facilities should be conducted in the operation of the entire railroad system.

• 한국정보통신학회논문지
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• 제25권2호
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• pp.334-337
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• 2021

Recently, the necessity of rapid response to social problems such as disasters and quarantine arising from the complex and diverse social structures has emerged. As the number of large buildings increases, large-scale human damage is expected in the event of a disaster such as fire. To solve this problem, efficient control must be achieved through interfacing with various equipment and facilities installed inside the building. In this paper, we intend to study the interface method for various facilities in the building for efficient control. In detail, the facility standard model is defined by examining the status and specification of building. In addition, we intend to design and propose a standard facility communication data frame to support the protocol applicable to this model.

• 한국지리정보학회지
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• 제9권4호
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• pp.105-118
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• 2006

도면과 대장정보를 데이터베이스화하여 구축한 기존의 시설물 관리시스템은 시설물의 2차원 또는 3차원 관리가 가능하도록 하였으나 현장에서 발생하는 다양한 정보를 실시간으로 수집할 수 없고 이를 종합적으로 운용하지 못하였다. 이러한 단점을 보완하기 위하여 유비쿼터스 기반의 시설물 관리시스템의 구축이 필요하다. 본 연구에서는 기존의 지형지물 전자식별자를 개량하여 시설물 관리에 적용 가능하도록 관리기관과 일련번호 부여방법이 개량된 UFID 체계를 제안하였다. 또한 제안한 UFID를 이용하여 유비쿼터스 기반의 시설물 관리를 위한 프로세스를 정립하였다. 본 연구의 적용성은 가로수를 대상으로 한 사례연구를 통하여 평가되었으며, 이는 유비쿼터스 기반의 다양한 시설물 관리에 적용될 수 있을 것으로 사료된다.

• 한국정보전자통신기술학회논문지
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• 제11권6호
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• pp.711-717
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• 2018

The purpose of this study is to identify the relationship between psychological wellbeing of social welfare facility workers and their organizational commitment. The subjects of this study were 230 social welfare facility workers in OO city, Gyeongsangbuk-do, Korea. Analysis was conducted using the SPSS program, including frequency analysis, reliability analysis and correlation analysis, and regression analysis on the causal relationship between variables. The results of the study showed that the psychological wellbeing of social welfare facility workers had a meaningful effect on their emotional commitment, continuous commitment and normative commitment. These results confirmed that the higher the psychological wellbeing of social welfare facility workers, the higher the sub-factors of organizational commitment, such as emotional, continuous, normative commitment, resulting in positive effects on the achievement of goals and values that are pursued by the welfare facilities. This study aims to become foundational data for the improvement of working conditions to improve psychological wellbeing of social welfare facility workers to increase organizational commitment.

• Architectural research
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• 제7권2호
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• pp.35-45
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• 2005

This study discusses "mechanisms" in a research facility, specifically focusing on the question of how we can understand what happens in the physical environment and the communication between researchers. This study attempts to address this question by examining two physical settings, before and after the move of one research-educational facility, the Institute of Paper Science and Technology. The objective of the study is to suggest conceptual models to comprehend the relationships between spatial layouts and communication. The study examines the underlying mechanism of how the levels of communication meet the layers of spatial structure. The paper has four parts. First, the preceding studies will be reviewed evoking some issues of communication and physical setting in research facilities. Second a conceptual typology in office plan will be developed providing a theoretical framework to review the spatial organization of the subject research facility, the Institute of Paper Science and Technology (IPST). Third, the spatial organization of the former building (before the move) and the present building (after the move) of IPST will be analyzed. Finally, conceptual models of the mechanism between the communication and the spatial organization will be drawn up.

• 한국전자통신학회논문지
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• 제16권5호
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• pp.835-844
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• 2021

본 논문에서는 스마트 그리드 전력설비 간 통신을 통해 고장구간을 자율적으로 판단, 분리하기 위한 기반기술인 통신제어장치를 설계하였다. 통신제어장치에서 제어모듈은 3상 전압, 전류를 계측할 수 있도록 DSP, 통신모듈은 전력설비 간 통신을 통해 고장구간을 판단, 고장구간 분리를 실현할 수 있도록 라즈베리 파이로 설계되었다. DSP와 라즈베리 간 통신은 SPI 통신방식을 기반으로, 반면에 라즈베리 간 통신은 Wi-Fi 기반으로 설계되었다. 끝으로, 3개의 전력설비 통신제어 장치로 구성되는 성능 평가 시스템을 구축하였으며, 선로 상의 다양한 고장 이벤트들에 대한 모의 검증을 실시하였다. 평가 결과, 모든 시험경우들에 대해서 통신제어장치가 요구된 응답을 보임으로서 통신제어장치 설계 방법론의 유효성을 확인할 수 있었다.

• International journal of advanced smart convergence
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• 제4권2호
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• pp.14-19
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• 2015

Recently, water sewage disposal facilities are able to manage real-time data collection and record management through compact broadband modem LAN switching technology. Therefore, it needs more stable and efficient facility management. So, we required practical use of environmental facilities convergence based on broadband integrated modem. In this paper, we proposed short distance wireless communication network of compact broadband modem for sewage disposal facilities. And it received data inside of water treatment facility using the two communication methods (IEEE802.11x and IEEE802.15.4x). Then, our proposed an data-flow control algorithm of wireless network technology will prioritize processing data when emergency happen through collecting data, analysis data and processing. Lastly, we proved usefulness by experiment and simulation analysis.

• 한국전자통신학회논문지
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• 제11권11호
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• pp.1061-1068
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• 2016

테마파크는 사용자에게 휴식과 오락을 제공하기 위하여 여러 프로그램을 운영하고 있으며 이 중에서 놀이시설을 사용자가 가장 많이 사용하고 있다. 그러나 증가된 사용자의 수로 인하여 놀이시설의 대기 시간이 길어지기 때문에 사용자의 만족도가 떨어지는 문제가 있다. 이 논문에서는 이를 해결하기 위하여 NFC를 이용한 놀이시설 예약 시스템을 제안한다. 사용자가 스마트폰에 내장된 NFC를 이용하여 놀이시설을 예약하면 서버는 사용자를 놀이시설의 대기열에 추가한다. 그리고 사용자의 이용 시간이 가까워졌을 때 사용자에게 이용 준비가 되었음을 알려준다. 구현된 시스템은 사용자가 대기 시간동안 다른 프로그램을 이용할 수 있는 장점이 있다.

• Nuclear Engineering and Technology
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• 제30권4호
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• pp.298-307
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• 1998

In order to design mutual communication between a distributed control system and a function test facility, we used the Inter-Process Communication(IPC) in two systems and Transmission Control Protocol/Internet Protocol(TCP/IP) protocol. The data from the function test facility are put in the shared memory using an IPC, which is then accessed by the distributed control system through an Application Program Interface(API). The server in the function test facility includes two processes(one for sending and one for receiving), which are generated by the fork function from the client signal. The client in the distributed control system includes two separate programs(one for receiving and one for sending).

• 한국정보전자통신기술학회논문지
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• 제11권5호
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• pp.556-564
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• 2018

The purpose of this study is to investigate the difference in social support and job satisfaction of disabled facility workers according to their general characteristics and job characteristics, and to understand the effect of social support on job satisfaction. A questionnaire was conducted against 143 disabled facility workers in D metropolitan city, from 5 January to 29 February 2016. The results of the study are as follows: first, no significant difference was found in the social support of disabled facility workers according to their general characteristics, and only the factor of job area showed significant difference in social support according to job characteristics. Secondly, there was no significant difference in job satisfaction of disabled facility workers according to their general characteristics or job characteristics. Thirdly, support of the superior, as a sub-factor of social support recognised by the disabled facility worker, was found to have a significant positive effect on job satisfaction. This study seeks to become foundational data for the development of plans to improve the job satisfaction of disabled facility workers.