Computer vision application in automatic meter calibration

S. L.Pang Leo, Wai Lok Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

9 Citations (Scopus)


CLP Power Hong Kong Limited (CLP Power) is a leading electricity utility in Hong Kong. Instrument calibration is an important supporting service for the company. Under traditional practice, manual calibration is being performed. As one of the new performance improvement initiatives, computer-vision application in meter calibration was introduced in 2004. This paper summarised the application of an intelligent automatic calibration system for instruments without computer interface output. This system is designed to communicate with the high precision calibrator using General Purpose Interface Bus (GPIB) interface to give out pre-programmed test signals and connect to a camera through the PXI-1490 interface card to capture meter readings in image format and then convert to digital format for test data verification in computer automatically. Now, the company is enjoying the benefits from the system in terms of eliminated human calibration errors and reduced operating costs.
Original languageEnglish
Title of host publicationConference Record of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Number of pages5
Publication statusPublished - 1 Dec 2005
Event2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting - Kowloon, Hong Kong, Hong Kong
Duration: 2 Oct 20056 Oct 2005


Conference2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Country/TerritoryHong Kong
CityKowloon, Hong Kong


  • Automatic
  • Calibration
  • Computer vision
  • Meter

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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