SELF-ACTIVATING SYSTEM AND METHOD FOR ALERTING WHEN AN OBJECT OR A PERSON IS LEFT UNATTENDED

摘要

A system and method uses a wireless tether comprising a transmitter (20) and a receiver (30) to alert a caregiver that an object or person has been left unattended. A detector (22) senses the presence of the object, usually a child (100), located in a position such as a safety seat. The detector (22) couples to the transmitter (20), which is located near the object. The transmitter transmits at least one wireless signal when the object (100) is in position. The receiver (30), which is remotely located from the transmitter, senses the at least one signal as long as the receiver (30) is within a prescribed range of transmission. By performing a timing function, the receiver (30) monitors the proximity of the caregiver (150) the transmitter. The system communicates an alarm to the caregiver when the caregiver ventures outside the rangeof transmission without having removed the object (100) from the position.