Indoor localization based on acceleration events

A computer-implemented method, comprising:

• receiving an indication of an acceleration event associated with a device at a building having multiple floors;
• triggering a timer to start in response to the indication of the acceleration event;
• receiving an indication of a deceleration event associated with the device following the acceleration event as it travels between the floors;
• triggering the timer to stop in response to the indication of the deceleration event;
• determining a traveled distance of the device between the acceleration event and the deceleration event based at least on an amount of time elapsed as measured by the timer;
• obtaining sensor data collected during the elapsed time and associated with the device;
• determining a direction of travel of the device during the elapsed time based at least on the sensor data;
• determining distances between the floors;
• and
• identifying a floor level corresponding to the position of the device at the end of the elapsed time based at least on:
• the position of the device at the beginning of the elapsed time,
• the distances between the floor levels,
• the traveled distance of the device, and
• the direction of travel of the device.

A system, comprising:

• one or more non-transitory storage media configured to provide stored computer-readable instructions, the one or more non-transitory storage media coupled to one or more processors, the one or more processors configured to execute the computer-readable instructions to cause the one or more processors to:
• receiving an indication of an acceleration event associated with a device at a building having multiple floors;
• triggering a timer to start in response to the indication of the acceleration event;
• receiving an indication of a deceleration event associated with the device following the acceleration event as it travels between the floors;
• triggering the timer to stop in response to the indication of the deceleration event;
• determining a traveled distance of the device between the acceleration event and the deceleration event based at least on an amount of time elapsed as measured by the timer;
• obtaining sensor data collected during the elapsed time and associated with the device;
• determining a direction of travel of the device during the elapsed time based at least on the sensor data;
• determining distances between the floors;
• and
• identifying a floor level corresponding to the position of the device at the end of the elapsed time based at least on:
• the position of the device at the beginning of the elapsed time,
• the distances between the floor levels,
• the traveled distance of the device, and
• the direction of travel of the device.