Use of offline algorithm to determine location from previous sensor data when location is requested

A non-transitory computer readable medium having stored therein instructions, that when executed by one or more processors, cause the one or more processors to perform functions comprising:

• determining sensor data at a plurality of intervals over a time period, wherein determining the sensor data includes using one or more sensors and a sensor processor while a main application processor is in an inactive state in relation to determining the sensor data, wherein the sensor processor is configured to determine the sensor data using less power than the main application processor is configured to use to determine the sensor data;
• storing the sensor data in memory as the sensor data is determined;
• receiving, by the main application processor, a request to determine a geographic location associated with the stored sensor data;
• and
• in response to receiving the request, performing, by the main application processor, a simultaneous localization and mapping (SLAM) algorithm optimization using the stored sensor data to determine the geographic location associated with the stored sensor data.

A system comprising:

• one or more processors;
• and
• data storage configured to store instructions that, when executed by the one or more processors, cause the system to perform functions comprising:
• determining sensor data at a plurality of intervals over a time period, wherein determining the sensor data includes using one or more sensors and a sensor processor while a main application processor is in an inactive state in relation to determining the sensor data, wherein the sensor processor is configured to determine the sensor data using less power than the main application processor is configured to use to determine the sensor data;
• storing the sensor data in the data storage as the sensor data is determined;
• receiving, by the main application processor, a request to determine a geographic location associated with the stored sensor data;
• and
• in response to receiving the request, performing, by the main application processor, a simultaneous localization and mapping (SLAM) algorithm optimization using the stored sensor data to determine the geographic location associated with the stored sensor data.