Obtain a labeled location from a WiFi fingerprint using a FIND server.
Additional documentation for the FIND API is at https://www.internalpositioning.com/api/ The basic unit in FIND for a map or a set of users is a group. This accessor will only work if the group is set to the same string as used in training.
The username input provides a consistent label for a user who wishes to be tracked by the FIND server. If you don't care about tracking, the default value is fine.
The wifi-fingerprint input should be a JSON array of the form "wifi-fingerprint":[ { "mac":"AA:AA:AA:AA:AA:AA", "rssi":-45 }, { "mac":"BB:BB:BB:BB:BB:BB", "rssi":-55 } ]
Documentation for setting up a FIND (FRAMEWORK FOR INTERNAL NAVIGATION AND DISCOVERY) server is available at https://www.internalpositioning.com/server/. The default parameters for this accessor connect to a server on terra.eecs.berkeley.edu. The developers for the FIND project also manage a publicly available server at https://ml.internalpositioning.com.
- Version:
- $$Id: GeoCoder.js 1804 2017-06-02 19:23:00Z cxh $$
- Source:
Inputs:
| Name | Type | Description |
|---|---|---|
wifiFingerprint |
JSON | An array of RSSI values for accesspoint mac addresses. Triggers a request to the FIND server. See format above. |
server |
string | The address of the FIND server. |
port |
integer | The port for the FIND server. |
group |
string | The group corresponding to the set of users and training data to be used for localization. |
username |
string | The username this user will have associated with the history of their positions on the server. This value only matters if you are interested in tracking users on the server. |
Outputs:
| Name | Type | Description |
|---|---|---|
location |
string | The location estimate corresponding to the wifiFingerprint, for example "Office 123". This value will be set to null if the location could not be found. |
response |
JSON | An object containing the full response from the FIND server. |
Methods
(static) filterResponse()
Filter the response, extracting the addresses
(static) setup()
Set up the accessor by defining the inputs and outputs.