Certains contenus de cette application ne sont pas disponibles pour le moment.
Si cette situation persiste, veuillez nous contacter àObservations et contact
1. (WO2018081160) APPAREIL ET PROCÉDÉ DE SUIVI DE LA POSITION D'UNE ÉTIQUETTE WI-FI UTILISABLE DE MANIÈRE INTERMITTENTE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

In the claims:

1. A server, comprising:

a processor; and

a memory connected to the processor, the memory storing instructions executed by the processor to:

collect scan lists from client devices, wherein each scan list specifies a Wi-Fi access point identifier collected by a client device and geographic coordinates of the client device when the Wi-Fi access point identifier was collected,

form a cluster of geographic coordinates around a designated Wi-Fi access point,

identify a centroid within the cluster,

ascribe the location of the centroid as the geographic position of the designated Wi-Fi access point,

add the geographic position of the designated Wi-Fi access point to a Wi-Fi access point location database,

process a Wi-Fi tag scan list to form a tag path listing known geographic locations of Wi-Fi access points observed by the Wi-Fi tag, and

supply the tag path in response to a request.

2. The server of claim 1 further comprising instructions executed by the processor to rank the scan lists.

3. The server of claim 2 wherein the instructions executed by the processor to rank the scan lists is based upon a mobile device value, a signal value and a measure of geographic accuracy.

4. The server of claim 3 wherein the mobile device value is a function of whether global positioning data is enabled on the mobile device.

5. The server of claim 3 wherein the signal value is a measure of signal strength from the designated Wi-Fi access point.

6. The server of claim 3 wherein the measure of geographic accuracy is derived from geographic accuracy information from the mobile device and a measure of the age of the geographic information.

7. A tag, comprising:

a Wi-Fi interface,

a processor connected to the Wi-Fi interface,

a memory connected to the processor, the memory storing instructions executed by the processor to:

periodically determine whether to place the tag in a wake state, collect from the Wi-Fi interface a scan list during the wake state, wherein the scan list includes identifiers of Wi-Fi access points observed during the wake state,

store the scan list, and

enter a sleep mode.

8. The tag of claim 7 further comprising instructions executed by the processor to utilize the Wi-Fi interface to connect to a free Wi-Fi access point.

9. The tag of claim 8 further comprising instructions executed by the processor to upload session details to a server.

10. The tag of claim 9 further comprising instructions executed by the processor to upload the scan list to the server.

11. The tag of claim 10 further comprising instructions executed by the processor to wait for an acknowledgement from the server.

12. The tag of claim 11 further comprising instructions executed by the processor to take an action specified by the server.