LOCATION BASED SERVICE SYSTEM AND METHOD FOR PERFORMING INDOOR NAVIGATION
First Claim
1. A location based service system, comprising:
- a plurality of access points installed in an indoor environment and configured to send Wi-Fi signals including access point identification information;
a mobile terminal configured to receive a Wi-Fi signal from at least one of the access points and form a first Wi-Fi fingerprint based on the received Wi-Fi signal; and
a navigation service server in communication with the mobile terminal, the navigation service server being configured to construct a plurality of Wi-Fi radio maps based on a plurality of second Wi-Fi fingerprints acquired at locations of the indoor environment, select a Wi-Fi radio map for estimating a location of the mobile terminal among the plurality of Wi-Fi radio maps, estimate the location of the mobile terminal by using a second Wi-Fi fingerprint corresponding to the first Wi-Fi fingerprint based on the selected Wi-Fi radio map, and form location information including the estimated location,wherein the first and second Wi-Fi fingerprints include received signal strength of the Wi-Fi signal and the access point identification information of the access point that sends the Wi-Fi signal.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments for performing an indoor navigation are disclosed. The location based service system includes: a plurality of access points installed in an indoor environment and configured to send Wi-Fi signals including access point identification information; a mobile terminal configured to receive a Wi-Fi signal from at least one of the access points and form a first Wi-Fi fingerprint based on the received Wi-Fi signal; and a navigation service server configured to construct a plurality of Wi-Fi radio maps based on a plurality of second Wi-Fi fingerprints acquired at locations of the indoor environment, select a Wi-Fi radio map for estimating a location of the mobile terminal among the plurality of Wi-Fi radio maps, estimate the location the mobile terminal by using a second Wi-Fi fingerprint corresponding to the first Wi-Fi fingerprint based on the selected Wi-Fi radio map, and form location information including the estimated location.
-
Citations
58 Claims
-
1. A location based service system, comprising:
-
a plurality of access points installed in an indoor environment and configured to send Wi-Fi signals including access point identification information; a mobile terminal configured to receive a Wi-Fi signal from at least one of the access points and form a first Wi-Fi fingerprint based on the received Wi-Fi signal; and a navigation service server in communication with the mobile terminal, the navigation service server being configured to construct a plurality of Wi-Fi radio maps based on a plurality of second Wi-Fi fingerprints acquired at locations of the indoor environment, select a Wi-Fi radio map for estimating a location of the mobile terminal among the plurality of Wi-Fi radio maps, estimate the location of the mobile terminal by using a second Wi-Fi fingerprint corresponding to the first Wi-Fi fingerprint based on the selected Wi-Fi radio map, and form location information including the estimated location, wherein the first and second Wi-Fi fingerprints include received signal strength of the Wi-Fi signal and the access point identification information of the access point that sends the Wi-Fi signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A method of performing an indoor navigation in a location based service system including a plurality of access points, which are installed in an indoor environment and configured to send Wi-Fi signals including access point identification information;
- a mobile terminal and a navigation service server, the method comprising;
a) at the navigation service server, constructing a plurality of Wi-Fi radio maps based on a plurality of first Wi-Fi fingerprints acquired at a plurality of locations of the indoor environment; b) at the mobile terminal, receiving a Wi-Fi signal from at least one of the access points and forming a second Wi-Fi fingerprint based on the received Wi-Fi signal; c) at the navigation service server, selecting a Wi-Fi radio map for estimating a location of the mobile terminal among the plurality of Wi-Fi radio maps; and d) at the navigation service server, estimating the location of the mobile terminal by using a first Wi-Fi fingerprint corresponding to the second Wi-Fi fingerprint based on the selected Wi-Fi radio map, and forming position information including the estimated location, wherein the first and second Wi-Fi fingerprints include received signal strength of the Wi-Fi signal and the access point identification information of the access point that sends the Wi-Fi signal. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
- a mobile terminal and a navigation service server, the method comprising;
-
48. A method of performing an indoor navigation in a location based service system including a plurality of access points, which are installed in an indoor environment and configured to send Wi-Fi signals including access point identification information;
- a mobile terminal and a navigation service server, the method comprising;
a) at the navigation service server, constructing a plurality of Wi-Fi radio maps based on a plurality of first Wi-Fi fingerprints acquired at a plurality of locations of the indoor environment; b) assigning Wi-Fi fingerprint identification information to the first Wi-Fi fingerprints for each of the Wi-Fi radio maps; c) at the mobile terminal, receiving a Wi-Fi signal from at least one of the access points and forming a second Wi-Fi fingerprint based on the received Wi-Fi signal; d) at the navigation service server, estimating a location of the mobile terminal based on a Wi-Fi radio map for estimating the location of the mobile terminal among the plurality of the Wi-Fi radio maps and the second Wi-Fi fingerprint; e) at the mobile terminal, receiving input information for setting a final destination from a user; f) at the navigation service server, extracting the Wi-Fi fingerprint identification information of the first Wi-Fi fingerprints corresponding to an optimal route from the current location to final destination based on the estimated current location and the input information to thereby form the Wi-Fi fingerprint information; and g) at the mobile terminal, executing an indoor navigation based on the Wi-Fi fingerprint information, wherein the first and second Wi-Fi fingerprints include a received signal strength of the Wi-Fi signal and access point identification information of an access point that sends the Wi-Fi signal. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
- a mobile terminal and a navigation service server, the method comprising;
Specification