Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of Facility Management System for Indoor Space Based on ICBM Technology

ICBM기반 실내 공간 유지관리 시스템 개발

  • Jung, Yoo-Seok (Department of Future Technology and Convergence Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Kang, Tae-Wook (Department of Future Technology and Convergence Research, Korea Institute of Civil Engineering and Building Technology)
  • 정유석 (한국건설기술연구원 미래융합연구본부) ;
  • 강태욱 (한국건설기술연구원 미래융합연구본부)
  • Received : 2018.12.07
  • Accepted : 2019.03.08
  • Published : 2019.03.31
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Abstract

An open office or a shared office is emerging as the emphasis on the collaborative and communicative work environments is increasing. In the past, the user maintained the space, but the maintenance of indoor space became difficult because there is no fixed user. Indoor space information can be collected using the ICBM framework system. The facility management can achieve this with data. Therefore, this study proposed a framework based on ICBM (Internet of Things, Cloud, Big Data, and Mobile) for verifying the possibility of a smart facility management system for indoor space. IoT (Internet of Things) technology was used to measure the indoor temperature, humidity, occupancy, and brightness continuously, and provided the data to Web API via WiFi. Data acquired automatically via IoT, existing maintenance data, and spatial information were integrated through the Cloud. Big data collected by sensors were processed as meaningful spatial information for maintenance. Indoor space information and maintenance information can be delivered to the manager through the mobile. Based on the collected data, room occupancy recognition is limited due to a range of ultrasonic wave sensors. On the other hand, brightness represents the space conditions. The difference between lighting on/off, weekday and weekend can be shown. The temperature data and the relative humidity data were collected steadily to evaluate the comfort.

협업과 소통하는 업무 분위기가 중시되면서 개방형 사무실이나 공유사무실이 나타나고 있다. 기존에는 사용자가 공간 유지보수의 주체가 되었으나 정해진 자리가 없어지면서 실내공간의 유지관리가 어렵게 되었다. ICBM 프레임워크를 활용한다면 실내 공간에 대한 정보를 수집하고, 공간유지보수에 활용 할 수 있을 것이다. 따라서, 본 연구에서는 ICBM(Internet of Things, Cloud, Big Data, Mobile) 기반의 프레임워크를 제안하고 이를 활용한 실내공간 유지관리 시스템의 가능성을 검토 하였다. IoT(Internet of Things, 사물인터넷)기술을 이용하여 실내의 온도, 상대습도, 재실 여부, 밝기를 지속적으로 측정하고 WiFi를 통해 Web API 에 제공한다. 온습도센서, 조도센서, 초음파 거리센서와 와이파이 모듈로 구성된 IoT 디바이스를 설계하고 프로토타입을 제작하였다. IoT를 통해 자동으로 취득된 데이터와 기존 유지보수 데이터, 공간정보가 Cloud(클라우드)를 통해 통합된다. 센서로 수집한 Big Data(빅데이터)는 유지보수용으로 의미 있는 공간 정보로 가공할 수 있을 것이다. 실내 공간 정보 및 유지관리 사항을 모바일(Mobile)을 통해 관리자에게 전달할 수 있다. 데이터 수집결과, 사용된 초음파센서의 측정범위 한계로 인해 재실여부의 파악은 제한적이었다. 하지만 밝기 정보는 공간의 활용 행태를 충분히 나타내어, 조명의 켜짐/꺼짐여부와 주말, 주중의 차이를 확인할 수 있었다. 온도와 상대습도 정보 또한 안정적으로 수집되어 공간의 쾌적성을 평가할 수 있었다.

Keywords

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Fig. 1. Use case scenario

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Fig. 2. ICBM based Framework

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Fig. 3. flowchart of data acqusition

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Fig. 4. IoT device fabrication

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Fig. 5. Data aquisition by web API

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Fig. 6. Plot of temperature and humidity

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Fig. 7. Plot of relative brightness

Table 1. Framework Requirement for FM

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Table 2. Sensor modules for IoT device

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Table 3. Used library for micro-controller software

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