PDA BASED VIRTUAL MEASURING SYSTEM FOR BROADBAND AIR QUALITY MONITORING |
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| O. Postolache, P. Silva Girão, M. D. Pereira |
- Abstract:
- The paper presents the implementation of a low cost, small size portable measuring system based on a personal digital assistant (PDA) for indoor air quality monitoring. The virtual system is based on a compact flash data acquisition board (CF-DAQ), plugged-in the PDA, that provides a set of analogue inputs used to read the voltages associated with temperature, humidity and broadband air quality sensors. The acquired voltages corresponding to the air conditions of individual rooms or vehicle cabins under observation are processed at the PDA level using the LabVIEW software that assures the voltage to air quantity conversion (VAQc) using techniques such as look-up tables and polynomial or neural network inverse modelling. A comparison between the above mentioned conversion techniques are considered. Information from the sensors can also be recorded in the PDA memory (quite limited) or in the building room air quality monitoring in a personal computer that are Wi-Fi connected to the PDA.
- Keywords:
- environmental measurement, mobile virtual instrumentation, air quality, humidity, temperature
- Download:
- PWC-2006-TC19-023u.pdf
- DOI:
- -
- Event details
- Event name:
- XVIII IMEKO World Congress
- Title:
Metrology for a Sustainable Development
- Place:
- Rio de Janeiro, BRAZIL
- Time:
- 17 September 2006 - 22 September 2006