×

Data logging device

  • US 10,365,127 B2
  • Filed: 06/18/2014
  • Issued: 07/30/2019
  • Est. Priority Date: 06/28/2013
  • Status: Expired due to Fees
First Claim
Patent Images

1. A portable system for logging sensor data and creating energy consumption patterns in an area comprising:

  • a low-power and/or low accuracy clock; and

    a processor in communication with a memory, the processor;

    receiving data items from each of a plurality of sensors;

    associating a time stamp generated by the low-power and/or low accuracy clock with each data item received from each of the plurality of sensors;

    storing the received data items for a predetermined period of time; and

    processing the stored data items to determine a high accuracy clock time stamp for each of the stored data items, wherein determining said high accuracy clock time stamp comprises;

    determining a time usage pattern of the area during a period of receiving the data items;

    approximating a correction of the time-stamp associated with the low-power and/or low accuracy clock based on the time usage pattern;

    determining an occupancy pattern during a period of receiving the data items;

    refining the correction based on the occupancy pattern associated with a second known time usage pattern; and

    applying the correction to the time-stamp associated with the low-power and/or low accuracy of the stored data.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×