Survey Techniques for Generating Location Fingerprint Data

A method, comprising:

• providing a user interface for display on a mobile device, the user interface comprising a map of a venue, the venue comprising a space accessible by a pedestrian and one or more constraints of movement of the pedestrian in the space, the map configured to receive a first placement input placing an origin marker on the map and to receive a second placement input placing a destination marker on the map, wherein a location of each of the origin marker and the destination marker on the map respectively indicates a user-estimated starting point and a user-estimated ending point of movement of the mobile device at the venue;
• recording first measurements from a sensor of the mobile device while the mobile device moves from the starting point to the ending point along a path defined by the starting point and the ending point, the first measurements comprising measurements of one or more signals received by the sensor;
• recording second measurements from a sensor while the mobile device moves from the ending point to the starting point along the path;
• determining a location on the path that is associated with at least one of the first measurements and at least one of the second measurements;
• and
• providing the location, the at least one first measurements, and the at least one second measurements, to a location server for determining, using interpolation, a signal fingerprint of the location.

A method comprising:

• providing a map user interface for display on a mobile device, the map user interface comprising a map of a venue, the map representing constraints of pedestrian movements at the venue, the map user interface being configured to receive a location input specifying a location of the mobile device at the venue, the location being relative to the venue;
• upon receiving the location input, providing for display on the mobile device an orientation user interface, the orientation user interface comprising a first orientation user interface item and a second user interface item, each of the first orientation user interface item and second user interface item indicating a respective orientation of the mobile device, each orientation being a direction a surveyor carrying the mobile device faces;
• recording, by the mobile device, a first measurement of a signal from a signal source at a first orientation in response to an input received through the first user interface item;
• recording, by the mobile device, a second measurement of the signal from the signal source at a second orientation in response to an input received through the second user interface item, wherein attenuation of the signal caused by the surveyor carrying the mobile device in the first orientation is different from attenuation of the signal caused by the surveyor carrying the device in the second orientation;
• and
• providing the first measurement and the second measurement in association with the location to a location server for determining location fingerprint data for the venue.

A storage device storing computer instructions operable to cause one or more processors to perform operations comprising:

• providing a user interface for display on a mobile device, the user interface comprising a map of a venue, the venue comprising a space accessible by a pedestrian and one or more constraints of movement of the pedestrian in the space, the map configured to receive from a user an input placing a marker at a location on the map, wherein the location indicates a user-estimated location of the mobile device at the venue;
• recording, by the mobile device, a first reading of a sensor of the mobile device and a second reading of the sensor, the first reading being associated with a first orientation of at least one of the user or the mobile device, the second reading being associated with a second orientation of at least one of the user or the mobile device, the first reading and the second reading of the sensor each measuring one or more signals received by the sensor at the location;
• and
• determining a signal fingerprint of the location based on the first reading and the second reading, including controlling an effect of a body of the user on the signal fingerprint based on a difference between the first reading and second reading and a difference between the first orientation and the second orientation.

A storage device storing computer instructions operable to cause one or more processors to perform operations comprising:

• providing a user interface for display on a mobile device, the user interface comprising a map of a venue, the venue comprising a space accessible by a pedestrian and one or more constraints of movement of the pedestrian in the space, the map configured to receive a first placement input placing an origin marker on the map and to receive a second placement input placing a destination marker on the map, wherein a location of each of the origin marker and the destination marker on the map respectively indicates a user-estimated starting point and a user-estimated ending point of movement of the mobile device at the venue;
• recording first measurements from a sensor of the mobile device while the mobile device moves from the starting point to the ending point along a path defined by the starting point and the ending point, the first measurements comprising measurements of one or more signals received by the sensor;
• recording second measurements from a sensor while the mobile device moves from the ending point to the starting point along the path;
• determining a location on the path that is associated with at least one of the first measurements and at least one of the second measurements;
• and
• providing the location, the at least one first measurements, and the at least one second measurements, to a location server for determining, using interpolation, a signal fingerprint of the location.

A storage device storing computer instructions operable to cause one or more processors to perform operations comprising:

• providing a map user interface for display on a mobile device, the map user interface comprising a map of a venue, the map representing constraints of pedestrian movements at the venue, the map user interface being configured to receive a location input specifying a location of the mobile device at the venue, the location being relative to the venue;
• upon receiving the location input, providing for display on the mobile device an orientation user interface, the orientation user interface comprising a first orientation user interface item and a second user interface item, each of the first orientation user interface item and second user interface item indicating a respective orientation of the mobile device, each orientation being a direction a surveyor carrying the mobile device faces;
• recording, by the mobile device, a first measurement of a signal from a signal source at a first orientation in response to an input received through the first user interface item;
• recording, by the mobile device, a second measurement of the signal from the signal source at a second orientation in response to an input received through the second user interface item, wherein attenuation of the signal caused by the surveyor carrying the mobile device in the first orientation is different from attenuation of the signal caused by the surveyor carrying the device in the second orientation;
• and
• providing the first measurement and the second measurement in association with the location to a location server for determining location fingerprint data for the venue.

A system comprising:

• one or more processors;
• and
• a storage device storing computer instructions operable to cause the one or more processors to perform operations comprising:
• providing a user interface for display on a mobile device, the user interface comprising a map of a venue, the venue comprising a space accessible by a pedestrian and one or more constraints of movement of the pedestrian in the space, the map configured to receive from a user an input placing a marker at a location on the map, wherein the location indicates a user-estimated location of the mobile device at the venue;
• recording, by the mobile device, a first reading of a sensor of the mobile device and a second reading of the sensor, the first reading being associated with a first orientation of at least one of the user or the mobile device, the second reading being associated with a second orientation of at least one of the user or the mobile device, the first reading and the second reading of the sensor each measuring one or more signals received by the sensor at the location;
• and
• determining a signal fingerprint of the location based on the first reading and the second reading, including controlling an effect of a body of the user on the signal fingerprint based on a difference between the first reading and second reading and a difference between the first orientation and the second orientation.

A system comprising:

• one or more processors;
• and
• a storage device storing computer instructions operable to cause the one or more processors to perform operations comprising:
• providing a user interface for display on a mobile device, the user interface comprising a map of a venue, the venue comprising a space accessible by a pedestrian and one or more constraints of movement of the pedestrian in the space, the map configured to receive a first placement input placing an origin marker on the map and to receive a second placement input placing a destination marker on the map, wherein a location of each of the origin marker and the destination marker on the map respectively indicates a user-estimated starting point and a user-estimated ending point of movement of the mobile device at the venue;
• recording first measurements from a sensor of the mobile device while the mobile device moves from the starting point to the ending point along a path defined by the starting point and the ending point, the first measurements comprising measurements of one or more signals received by the sensor;
• recording second measurements from a sensor while the mobile device moves from the ending point to the starting point along the path;
• determining a location on the path that is associated with at least one of the first measurements and at least one of the second measurements;
• and
• providing the location, the at least one first measurements, and the at least one second measurements, to a location server for determining, using interpolation, a signal fingerprint of the location.

A system comprising:

• one or more processors;
• and
• a storage device storing computer instructions operable to cause the one or more processors to perform operations comprising:
• providing a map user interface for display on a mobile device, the map user interface comprising a map of a venue, the map representing constraints of pedestrian movements at the venue, the map user interface being configured to receive a location input specifying a location of the mobile device at the venue, the location being relative to the venue;
• upon receiving the location input, providing for display on the mobile device an orientation user interface, the orientation user interface comprising a first orientation user interface item and a second user interface item, each of the first orientation user interface item and second user interface item indicating a respective orientation of the mobile device, each orientation being a direction a surveyor carrying the mobile device faces;
• recording, by the mobile device, a first measurement of a signal from a signal source at a first orientation in response to an input received through the first user interface item;
• recording, by the mobile device, a second measurement of the signal from the signal source at a second orientation in response to an input received through the second user interface item, wherein attenuation of the signal caused by the surveyor carrying the mobile device in the first orientation is different from attenuation of the signal caused by the surveyor carrying the device in the second orientation;
• and
• providing the first measurement and the second measurement in association with the location to a location server for determining location fingerprint data for the venue.