| 摘要 |
PROBLEM TO BE SOLVED: To solve the conventional problem that a system for counting the number of persons is not obtained, where, even when some persons enter or exits to or from a space such as a conference room where the persons can enter or exit, the system for counting the number of the persons can exactly count, at all times for each time, the number of the persons in the space with a simple structure.SOLUTION: A system for counting the number of persons comprises: a human sensor for detecting the persons who enter or exit to or from a space disposed near an entrance door of the space where the persons enter or exit; a COsensor for detecting COconcentration in the space; and calculation means for calculating the number of the persons in the space on the basis of a detection signal of the human sensor and the COconcentration detected by the COsensor. |
