Techniques and devices for motion detection

A non-transitory computer-readable medium having stored thereon instructions for causing a processing circuitry to execute a process, the process comprising:

• identifying a plurality of stationary periods based on a plurality of sample groupings including a plurality of acceleration values, wherein each stationary period is a sample grouping of the plurality of sample groupings having an acceleration magnitude value below a threshold, wherein each sample grouping includes a subset of samples from among a plurality of samples of sensor data;
• determining a plurality of velocity values by integrating a portion of the plurality of acceleration values, wherein the portion of the plurality of acceleration values which is integrated in order to determine the plurality of velocity values excludes the plurality of stationary periods, wherein excluding the plurality of stationary periods having acceleration magnitude values below the threshold when integrating the portion of the plurality of acceleration values removes noise and drift;
• and
• determining a plurality of positions by integrating at least a portion of the plurality of velocity values.

A system for position detection, comprising:

• a processing circuitry;
• and
• a memory, the memory containing instructions that, when executed by the processing circuitry, configure the system to:
• identify a plurality of stationary periods based on a plurality of sample groupings including a plurality of acceleration values, wherein each stationary period is a sample grouping of the plurality of sample groupings having an acceleration magnitude value below a threshold, wherein each sample grouping includes a subset of samples from among a plurality of samples of sensor data;
• determine a plurality of velocity values by integrating a portion of the plurality of acceleration values, wherein the portion of the plurality of acceleration values which is integrated in order to determine the plurality of velocity values excludes the plurality of stationary periods, wherein excluding the plurality of stationary periods having acceleration magnitude values below the threshold when integrating the portion of the plurality of acceleration values removes noise and drift;
• and
• determine a plurality of positions by integrating at least a portion of the plurality of velocity values.