Abstract
The estimation of the number of people is useful for various situations. In this paper, hybrid estimation method of the number of people in a room is proposed. This estimation method is achieved by using CO2 sensor and motion sensor. Adaptive adjusting method of hold time for motion sensor is also proposed for its self-calibration. Proposed method was implemented on an energy management system and evaluated in a classroom environment. This evaluation proves that proposed method can improve the precision from 0.9 in the previous method to 0.4 in the proposed method at the number of people.
| Original language | English |
|---|---|
| Pages (from-to) | 355-362 |
| Number of pages | 8 |
| Journal | Journal of Environmental Engineering |
| Volume | 75 |
| Issue number | 650 |
| DOIs | |
| Publication status | Published - 2010 Apr |
Keywords
- CO concentration sensor
- Energy management system
- Estimation method of the number of people
- Motion sensor
ASJC Scopus subject areas
- Environmental Engineering