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In-Room Security System

By Buresh, Brian J.; Van Sickle, Austin R.; Maslowski, Seth L.; NSF 2004 Engineering Senior Design Projects to Aid Persons With Disabilities, pp. 122-123
Publication Date: 2004

Describes an alert system developed for a group home designed to alert caregivers if a resident has left his or her room. The system consists of four units: two sensors, a base station, and a pager. Sensors are attached to window or doors. When a magnetic sensor is activated, it transmits an alarm to a base station. After one minute, a back up alarm is sent to a pager. To prevent disrupting the house environment, all alarms are silent. Magnetic switches are used to activate the sensor circuits, which are composed of a microcontroller, a transmitter, and an antenna. Sensors and pagers use AAA batteries. The base unit uses an AC/DC converter. The approximate cost for the system as described is $700.
Published by: Creative Learning Press, Inc.   (Website:http://www.creativelearningpress.com)

Link to text: http://nsf-pad.bme.uconn.edu/2004/NorthDakotaState.pdf
ISBN: 1-931280-02-9
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