Methods and apparatus for efficiently tracking activity using radio frequency identification

Abstract

A wearable data processing system includes a high power radio module and a low power radio module. The high power radio module may retrieve data from radio frequency identifier (RFID) tags. The low power radio module may transmit data to a base station data pertaining to the detected RFID tags. The low power radio module may also receive a power management signal from a gate radio. The gate radio may have an adjustable range. A power management engine in the wearable data processing system may determine whether the low power radio module is receiving the power management signal from the gate radio. The power management engine may also activate and deactivate the high power radio module, depending on whether the low power radio module is receiving the power management signal from the gate radio. Other embodiments are described and claimed.