US Patent 8994556 Threat detection system and method

A data multi-hop sensing and threat detecting network, including modular sensor devices, smart plug and portable sensor devices, and low power sub-sensor devices. A determination is made to alert when a sensed value is either (1) greater than a predetermined upper threshold value or the running average baseline value (whichever is greater) plus the upper fluctuation buffer value, or (2) less than a predetermined lower threshold value or the running average baseline value (whichever is less) less the lower fluctuation buffer value. The running average baseline is smoothed by applying large number numerology to the sensed values.