A computer-implemented method for monitoring and controlling a controlled space. The method includes partitioning a controlled space into one or more regions; evaluating motion within the controlled space; determining occupancy within the one or more regions. The method may also include adjusting conditions within the controlled space based on whether the controlled space, or a specific region thereof, is occupied. Corresponding devices and systems are also disclosed herein.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH/DEVELOPMENT
 This invention was made with government support under Grant Number EE0003114 awarded by the U.S. Department of Energy. The government has certain rights in the invention.