Patent ID: 9147013
Filing Date: 2015-09-29
Classification: G06F,H04W,Y02D

Abstract:
1. A method for operating a wireless sensor module, the method comprising: collecting sensor data in a periodic manner with a first time period; logging the sensor data in a non-volatile ferroelectric random access memory (FRAM) within the sensor module; placing the sensor module in a reduced power idle mode between sensor data collection periods, wherein the logged sensor data is preserved by the FRAM during the idle mode; and transmitting a representation of the logged sensor data over a radio channel to a remote receiver in a periodic manner with a second time period, wherein the second time period is longer than the first time period; aggregating the logged sensor data during the second time period to form the representation of the logged sensor data, wherein aggregating comprises processing the logged sensor data in the FRAM by using the FRAM as a scratchpad memory during the processing; wherein aggregating the logged sensor data further comprises using a hash table stored in the FRAM to perform duplicate packet suppression.