Implementing low power and reliable methods of detecting users as they approach presents many factors to account for. We will need to adjust the light intensity of the keypad based off ambient light and track accurate sensor(s) readings to distinguish between a user and “ false detections”. Objects passing by must not alert the system that a user is approaching. Asthis is poised to be used on security applications, a serial prompt alerting the user will also be generated for homeowners to review. This entire system is to be packaged as a low-power product suitable for long-lasting outdoor use, necessitating the use of power-saving components and appropriate weatherproofing to keep the system safe while not obstructing the sensor(s).
Team 17 is designing a user presence detection system for an Allegion door lock that can meet power and weatherproofing requirements. This system has an adjustable backlit keypad that lights when a user approaches the door.