Methods and apparatus for multimodal audience detection and identification

1. A proximity detection apparatus, the apparatus comprising:

a signal strength value selector to select a portion of a set of signal strength values associated with advertising packets from a device associated with a user, the advertising packets captured by a multi-axis receiver on a plurality of different signal polarizations, the multi-axis receiver to capture first ones of the advertising packets along a first axis polarity, second ones of the advertising packets along a second axis polarity transverse relative to the first axis polarity, and third ones of the advertising packets along a third axis polarity, the third axis polarity is transverse relative to the first axis polarity and the second axis polarity;

a signal strength calculator to calculate a first representative signal strength value based on the selected portion of signal strength values; and

a presence determiner to determine a presence of the user based on whether the first representative signal strength value satisfies a threshold.

2. The apparatus of claim 1 , wherein the set of signal strength values includes signal strength values from one or more advertising channels and the plurality of different signal polarizations.

3. The apparatus of claim 1 , wherein the presence determiner is further to determine demographics associated with the user based on the advertising packets, and further including a presence report generator to generate a report to indicate whether the presence of the user was detected.

4. The apparatus of claim 3 , wherein the presence is a first presence, and further including:

a presence detector to detect a second presence of the user based on a radar reading; and

a correlator to:

correlate the first presence and the second presence, the correlation associating the demographics of the user with the second presence; and

track the user via the second presence.

5. The apparatus of claim 3 , wherein the presence report generator is to transmit the report to a media meter, the media meter to conduct media monitoring based on the report.

6. The apparatus of claim 1 , further including:

an auxiliary device interface to receive a second representative signal strength value from an auxiliary device; and

the presence determiner to determine the presence based on the second representative signal strength value.

7. The apparatus of claim 1 , wherein the advertising packets are Bluetooth advertising packets and the signal strength values are received signal strength indicator (RSSI) values.

8. The apparatus of claim 1 , wherein the multi-axis receiver includes a first receiver configured to capture the first ones of the advertising packets along the first axis polarity, a second receiver configured to capture the second ones of the advertising packets along the second axis polarity, and a third receiver configured to capture the third ones of the advertising packets along a third axis polarity.

9. A method comprising:

selecting, via at least one processor, a portion of a set of signal strength values associated with advertising packets from a device associated with a user, the advertising packets captured by a multi-axis receiver on a plurality of different signal polarizations, the multi-axis receiver to capture first ones of the advertising packets along a first axis polarity, second ones of the advertising packets along a second axis polarity transverse relative to the first axis polarity, and third ones of the advertising packets along a third axis polarity, the third axis polarity is transverse relative to the first axis polarity and the second axis polarity;

calculating, via at least one processor, a first representative signal strength value based on the selected portion of signal strength values; and

determining, via at least one processor, a presence of the user based on whether the first representative signal strength value satisfies a threshold.

10. The method of claim 9 , wherein the set of signal strength values includes signal strength values from one or more advertising channels and the plurality of different signal polarizations.

11. The method of claim 9 , further including determining demographics associated with the user based on the advertising packets, and further including a presence report generator to generate a report to indicate whether the presence of the user was detected.

12. The method of claim 11 , wherein the presence is a first presence, and further including:

detecting a second presence of the user based on a radar reading; and

correlating the first presence and the second presence, the correlation associating the demographics of the user with the second presence; and

tracking the user via the second presence.

13. The method of claim 11 , further including transmitting the report to a media meter, the media meter to conduct media monitoring based on the report.

14. The method of claim 9 , further including:

receiving a second representative signal strength value from an auxiliary device; and

determining the presence based on the second representative signal strength value.

15. The method of claim 9 , wherein the advertising packets are Bluetooth advertising packets and the signal strength values are received signal strength indicator (RSSI) values.

16. A non-transitory computer readable medium including instructions which, when executed, cause a processor to at least:

select a portion of a set of signal strength values associated with advertising packets from a device associated with a user, the advertising packets captured by a multi-axis receiver on a plurality of different signal polarizations, the multi-axis receiver to capture first ones of the advertising packets along a first axis polarity, second ones of the advertising packets along a second axis polarity transverse relative to the first axis polarity, and third ones of the advertising packets along a third axis polarity, the third axis polarity is transverse relative to the first axis polarity and the second axis polarity;

calculate a first representative signal strength value based on the selected portion of signal strength values; and

determine a presence of the user based on whether the first representative signal strength value satisfies a threshold.

17. The non-transitory computer readable medium of claim 16 , wherein the set of signal strength values includes signal strength values from one or more advertising channels and the plurality of different signal polarizations.

18. The non-transitory computer readable medium of claim 16 , wherein the instructions further cause the processor to determine demographics associated with the user based on the advertising packets, and further including a presence report generator to generate a report to indicate whether the presence of the user was detected.

19. The non-transitory computer readable medium of claim 18 , wherein the presence is a first presence, and the instructions further cause the processor to:

detect a second presence of the user based on a radar reading; and

correlate the first presence and the second presence, the correlation associating the demographics of the user with the second presence; and

track the user via the second presence.

20. The non-transitory computer readable medium of claim 18 , wherein the instructions further cause the processor to transmit the report to a media meter, the media meter to conduct media monitoring based on the report.

21. The non-transitory computer readable medium of claim 16 , wherein the instructions further cause the processor to:

receive a second representative signal strength value from an auxiliary device; and

determine the presence based on the second representative signal strength value.