Abstract: A dispensing and accountability system for assuring washing of a person's hands includes at least one passive infrared detector adapted to detect the presence of the person having a requirement of washing the hands. Further, the dispensing and accountability system includes a controller having a scalable processor architecture operatively coupled to each passive infrared detector of the at least one passive infrared detector. Furthermore, the dispensing and accountability system includes at least one audio signal unit operatively coupled to the controller. The at least one audio signal unit is adapted to generate an audio signal to remind the person to wash the hands. In addition, the dispensing and accountability system includes at least one dispensing unit operatively coupled to the controller. Because of the scalable processor architecture of the controller, the system may be expanded or contracted depending on the needs of the institution using it.

Abstract: A CW radar (10) is used to detect motion of objects (22) behind a wall (20) by projecting a radar beam through the wall and by measuring the returns from the objects behind the wall, with a change in the phase difference between the transmitted and received CW signals providing an indication of motion behind the wall and thus the presence of an individual.