Travel and activity capturing
AssigneeRegents of the University of Minnesota
InventorsYingling Fan, Julian Wolfson, Gediminas Adomavicius
Life of this patent
Estimating the term…
Abstract
A mobile device includes a positioning module sampling at least a position of the mobile device at a sampling rate when active and a processor capable of determining whether a mobile device is travelling or dwelling based on at least the sampled position of the mobile device. The processor further identifies a travel mode for a trip segment for the mobile device based on at least the sampled position of the mobile device when the mobile device is travelling and identifies an activity when then the mobile device is dwelling.
Claims29
A mobile device comprising:
- a positioning module sampling at least a position of the mobile device at a sampling rate when active and providing values comprising at least the position of the mobile device;
- a processor generating features from the provided values, applying the features to a model to determine a travel mode for each of a collection of respective time points, and smoothing the travel modes for the collection of respective time points to identify a travel mode for a trip segment for the mobile device.
3-6. (canceled)
A memory having computer-executable instructions stored thereon, the computer-executable instructions causing a processor to execute steps comprising:
- collecting information comprising at least one of position information, speed information and acceleration information from a positioning module in a mobile device containing the processor;
- using the collected information to determine at least a travel mode for the mobile device;
- comparing the travel mode to a travel mode of at least one previous trip to identify a matching previous trip;
- and
- reducing a sampling rate of the positioning module based on identifying the matching previous trip.
(canceled)
A method on a mobile device, the method comprising:
- identifying a dwelling episode during which the mobile device is not considered to be traveling;
- determining a location for the dwelling episode;
- determining whether the user of the mobile device performed any activities in the past within a set distance of the location of the dwelling episode;
- when the user of the mobile device performed at least one activity in the past within the set distance of the location of the dwelling episode, classifying the dwelling episode as an activity type based on the at least one activity performed by the user in the past instead of using a more processor-intensive technique to classify the dwelling episode as an activity type.
(canceled)
A method of improving a computing system used to classify actions into travel modes and activity types, the method comprising:
- classifying an action as one of an activity type and a travel mode;
- displaying controls to allow a user to divide the action into two temporally shorter actions such that the controls allow the user to classify each of the shorter actions into one of an activity type and a travel mode;
- receiving selections of the controls indicating how the user has classified the shorter actions;
- based on how the user has classified the shorter actions, enhancing at least one method used by the computing system to classify actions into travel modes and activity types.
Dependencies are inferred from the claim text.