Algorithm 1 The basic algorithm
Input: scan interval and scan duration
Output: beacon with the highest measure RSSI signal strength
1:	set scan interval
2:	set scan duration
3:	functionbeacon_scanner
4:	loop
5:	if scan interval not over
6:	call listen_for_beacons
7:	functionlisten_for_beacons
8:	init results array
9:	while scan duration not over
10:	if beacon detected
11:	if beacon already detected
12:	override beacon data
13:	else
14:	push beacon data into the results array
15:	call beacon_scanner
16:	if results array not empty
17:	return beacon with the highest measured RSSI signal strength
18:	else
19:	return null;