SUBJECT DETECTION

摘要

The application describes a child monitoring system and method for detecting and discriminating between children and adults passing under a sensor that is independent of the position of the sensor in relation to the subject. The system determines a distance to a surface on which a person can stand, and calculates a reference distance from this distance and a desired threshold. When a person enters the sensor range, the distance to the top of the person's head is compared with the reference distance to determine whether the person is an adult or a child. An alert can be provided when a child is detected as opposed to an adult, and alerts can be suppressed if an adult is in the vicinity.