User assisted location devices
AssigneeHoneywell International Inc.
InventorsHaiyang Liu, Soumitri N. Kolavennu, Steve Huseth
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices are described herein. One method can include determining a cross validation model using a user input, estimating a movement of a device from a first location to a second location using the cross validation model and the user input, and determining the second location of the device using the estimated movement of the device.
Claims20
A method for determining a location of a user assisted location device, the method comprising:
- determining a cross validation model using a user input;
- estimating a movement of a device from a first location to a second location using the cross validation model and the user input;
- and
- determining the second location of the device using the estimated movement of the device.
A user assisted location device system, comprising:
- a memory resource;
- and
- a processing resource coupled to the memory resource, wherein the processing resource is configured to execute executable instructions stored in the memory resource to:
- identify a spatial probability distribution using a constraint of a first location of a location device and a received first signal;
- revise the spatial probability distribution using a received second signal and a user input to determine a cross validation model;
- determine a motion model using measurements from an inertial measurement unit (IMU) component;
- revise the motion model using the cross validation model;
- estimate a movement of the location device using the revised motion model;
- and
- determine a second location of the location device using the estimated movement.
The system of claim 15, wherein the speech-based description of movement includes at least one of a type of motion, a direction, and a lack of direction.
A user assisted location device, comprising:
- a Global Positioning System (GPS) component for sending and receiving GPS signals, including position data;
- a wireless component for sending and receiving wireless signals to perform wireless location estimation;
- an inertial measurement unit (IMU) component for tracking movement measurements;
- a user-interface component for receiving user inputs;
- and
- a computing component operable to:
- determine a zone in an environment a location device is in using position data and wireless location estimation;
- retrieve a map of the determined zone;
- determine constraints of the zone using the map to identify a spatial probability distribution;
- revise the spatial probability distribution using user inputs, GPS signals, and wireless signals to determine a cross validation model;
- determine a motion model using the measurements from the IMU component;
- revise the motion model using the cross validation model to filter anomalies;
- estimate a movement of the location device using the revised motion model based on dead reckoning principles;
- estimate reference point updates using the cross validation model;
- and
- determine a fusion model using the reference point updates and the estimated movement to identify a current location of the location device.
Dependencies are inferred from the claim text.