Back in 1980, it is believed that the first intelligent electronic sensor was proposed (by S. Middelhoek and J.B. Angell). Their idea was to combine a MEMS sensor, an analog-to-digital convertor, and ...
State energy codes in the United States, which must be at least as stringent as the ASHRAE/IES 90.1-1999 standard, require automatic shutoff of lighting in commercial buildings greater than 5,000 ...