Unattended vehicle passenger detection system

摘要

A system detects the presence of a living being within a vehicle and triggers an alarm should the temperature rise above or fall below a predetermined threshold limit. The system uses a carbon dioxide monitor to determine for the living being's presence, which is backed up by one or more subsystems that include a motion sensor that senses motion, a sound sensor that senses sounds, especially those made by distressed living beings, and a camera that uses facial recognition software to detect a face within the vehicle. The alarm can be staged so that a lower level of alarm is triggered when the hazardous temperature is approaching, but has not yet reached critical levels, and one of the subsystems has detected a living being within the vehicle, but the others have not yet activated, and a higher level alarm once critical temperatures have been reached.

主权项

1. A detection system for detecting the presence of a living being within an interior compartment of a vehicle, the detection system comprising:
a control unit adapted to be mounted within the vehicle; a temperature sensor that senses temperatures, adapted to be mounted within the interior compartment of the vehicle, the temperature sensor communicatively coupled to the control unit; a carbon dioxide sensor that senses carbon dioxide levels, adapted to be mounted within the interior compartment of the vehicle, the carbon dioxide sensor communicatively coupled to the control unit; an alarm system communicatively coupled to the control unit; and wherein the temperature sensor senses the temperature within interior compartment and if the temperature crosses a first predetermined threshold temperature which is outside a safe temperature range, the carbon dioxide sensor senses the carbon dioxide level within the interior compartment of the vehicle and this carbon dioxide level is stored by the control unit as a baseline carbon dioxide level, and thereafter the carbon dioxide sensor senses at least one subsequent carbon dioxide level within the interior compartment of the vehicle and the control unit compares each of the at least one subsequent carbon dioxide levels against the baseline carbon dioxide level in order to obtain a differential, and if the differential is positive and exceeds a predetermined amount, the control unit commands the alarm system to trigger at least one first alarm event.