Method and system for optimizing quality and integrity of location database elements
View Patent ↗A location server may be operable to refine a location for a RF node based on a weight applied to one or more location samples that are received from one or more mobile devices. The received location samples may be weighted based on a manufacturer and/or a model information of each of the mobile devices, properties and/or conditions of a RF environment associated with each of the mobile devices, a GNSS dilution of precision, motion sensors used by each of the mobile devices and/or a geometrical population condition associated with each of the mobile devices within range of the RF node. A valid location for the RF node may be generated utilizing the weighted location samples. The location server may update location information for the RF node, which may be stored in a location database, utilizing the valid location for the RF node.
1. A method for determining a location of an RF node, the method comprising:
performing by one or more processors and/or circuits in a location server:
receiving a first location for the RF node from a first mobile device;
receiving a second location for the RF node from a second mobile device, the second mobile device being different from, the first mobile device; and
calculating a valid location for the RF node based on the first location and the second location.
2. The method according to claim 1 , further comprising:
receiving first additional information from the first mobile device;
receiving second additional information from the second mobile device; and
weighting the first location and the second location based on the first additional information and the second additional information,
wherein the calculating of the valid location for the RF node is based on the weighted first location and the weighted second location.
3. The method according to claim 2 , further comprising updating location information of the RF node based on the valid location for said RF node, wherein said location information is stored in a location database in said location server.
4. The method according to claim 2 , wherein the first additional information includes at least one of a manufacturer and a model identification information of the first mobile device, and
wherein the second additional information includes at least one of a manufacturer and a model identification information of the second mobile device.
5. The method according to claim 2 , wherein the first additional information and the second additional information each includes at least one property of an RF environment that is associated with the first and second mobile devices.
6. The method according to claim 5 , wherein the at least one property of the RF environment includes at least one of an indoor environment, an outdoor environment, an urban environment, a rural environment, a multipath channel with a power delay profile (PDP) a velocity of the first mobile device, and a velocity of the second mobile device.
7. The method according to claim 2 , wherein the first additional information includes a dilution of precision (DOP) associated with a global navigation satellite system (GNSS) which is generated by the first mobile device, and
wherein the second additional information includes a DOP associated with a GNSS which is generated by the second mobile device.
8. The method according to claim 2 , wherein the first additional information includes motion information generated by one or more motion sensors of the first mobile device,
wherein the second additional information includes motion information generated by one or more motion sensors of the second mobile device, and
wherein the one or more motion sensors of the first mobile device and the one or more sensors of the second mobile device each include at least one of an accelerometer, a gyroscope and an altimeter.
9. The method according to claim 2 , wherein the first additional information includes a geometrical population condition associated with the first mobile device, and
wherein the second additional information includes a geometrical population condition associated with the second mobile device.
10. The method of claim 2 , wherein the first additional information includes a reliability indication calculated by the first mobile device that indicates a reliability of the first location, and
wherein the second additional information includes a reliability indication calculated by the second mobile device that indicates a reliability of the second location.
11. The location server of claim 2 ,
wherein the calculation of the valid location of the RF node includes an average of the weighted first location and the weighted second location.
12. A location module, comprising:
one or more processors and/or circuits configured to:
receive a first location for the RF node from a first mobile device;
receive a second location for the RF node from a second mobile device, the second mobile device being different from the first mobile device; and
calculate a valid location for the RF node based on the first location and the second location.
13. The location module according to claim 12 , wherein said one or more processors and/or circuits are further configured to:
receive first additional information from the first mobile device;
receive second additional information from the second mobile device; and
weight the first location and the second location based on the first additional information and the second additional information,
wherein the calculating of the valid location for the RF node is based on the weighted first location and the weighted second location.
14. The location server according to claim 13 , wherein said one or more processors and/or circuits are further configured to update location information of the RF node based on the valid location for said RF node, wherein said location information is stored in a location database in said location server.
15. The location server according to claim 13 , wherein the first additional information includes at least one of a manufacturer and a model identification information of the first mobile device, and
wherein the second additional information includes at least one of a manufacturer and a model identification information of the second mobile device.
16. The location server according to claim 13 , wherein the first additional information and the second additional information each includes at least one property of an RF environment that is associated with the first and second mobile devices.
17. The location server according to claim 16 , wherein the at least one property of the RF environment includes at least one of an indoor environment, an outdoor environment, an urban environment, a rural environment, a multipath channel with a power delay profile (PDP), a velocity of the first mobile device, and a velocity of the second mobile device.
18. The location server according to claim 13 , wherein the first additional information includes a dilution of precision (DOP) associated with a global navigation satellite system (GNSS) which is generated by the first mobile device, and
wherein the second additional information includes a DOP associated with a GNSS which is generated by the second mobile device.
19. The location server according to claim 13 , wherein the first additional information includes motion information generated by one or more motion sensors of the first mobile device,
wherein the second additional information includes motion information generated by one or more motion sensors of the second mobile device, and
wherein the one or more motion sensors of the first mobile device and the one or more sensors of the second mobile device each include at least one of an accelerometer, a gyroscope and an altimeter.
20. The location server according to claim 13 , wherein the first additional information includes a geometrical population condition associated with the first mobile device, and
wherein the second additional information includes a geometrical population condition associated with the second mobile device.