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An iBeacon is a Bluetooth beacon that can be used to determine proximity.
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iBeacon detection in iOS is performed by registering interest in the proximityUUID of a beacon. When the beacon with that UUID is detected, the range can be measured. Multiple beacons can have the same proximityUUID (typically assigned by the manufacturer), but will have different major and minor integer values that identify the individual beacon object.
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Ted Goddard
added a comment - iBeacon detection in iOS is performed by registering interest in the proximityUUID of a beacon. When the beacon with that UUID is detected, the range can be measured. Multiple beacons can have the same proximityUUID (typically assigned by the manufacturer), but will have different major and minor integer values that identify the individual beacon object.
Region detection can be performed in the background, whereas region ranging is a foreground function.
The web application can register a list of UUIDs for region detection.
Since Ranging is a foreground task, when BridgeIt is brought to the foreground, the nearby beacons will be displayed for a short time (3 seconds) with a "Keep Scanning" button. If the user presses "Keep Scanning" ranging will be performed until they press "Done", which will return the range data for all beacons to the web application.