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Virtual In-situ Sensor Calibration and the Application in Unitary Air Conditioners

유닛형 공기조화기 센서의 가상보정 방법 및 적용 특성 분석

  • Yoon, Sungmin (Division of Architecture and Urban Design, Incheon National University) ;
  • Kim, Yong-Shik (Division of Architecture and Urban Design, Incheon National University)
  • 윤성민 (인천대대학교 도시건축학부) ;
  • 김용식 (인천대대학교 도시건축학부)
  • Received : 2018.12.03
  • Accepted : 2018.12.20
  • Published : 2018.12.30

Abstract

Since data-driven building technologies have been widely applied to building energy systems, the accuracy of building sensors has more impacts on the building performance and system performance analysis. Various building sensors, however, can have typical errors including a random error (noise) and a systematic error (bias). The systematic error is indicated by the difference between the mean of measurements and their true value. It may occur due to the sensor's physical condition, measured phenomena, working environments inside the systems. Unfortunately, a conventional calibration method has limitations in calibrating the systematic errors because of the difference between working environments and calibration conditions. In such situations, a novel sensor calibration method is needed to handle various sensor errors, especially for systematic errors, in building energy systems having various thermodynamic environments. This study proposes a building sensor calibration method named Virtual In-situ Calibration (VIC) and shows how it is applied into a real building system and how it solves the sensor errors.

Keywords

References

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