Estimation of number of tag trackers that can be scanned and sent at once
The capacity of the scanning infrastructure to scan BLE tag trackers at the same time is not
unlimited. The number of tags that can be sent depends on the scanning device capacity and the
bluetooth spectrum capacity.
The reason for this is that when very large amounts of BLE tags are present in the same
location, the advertised BLE ID signals will start to interfere with each other and create
'collision'. This collision causes the BLE anchor to miss seeing nearby BLE tags, resulting in
longer detection times or unreliable tag detection. Figure 1. Tag scanning capacity
The bluetooth spectrum capacity:
depends on the used scanning device.
the capacity for bluetooth signals at one location is limited, however only attained
when stacking lots of very small assets (many thousands).
The scanning device capacity:
Is a function of the bluetooth spectrum capacity and the capabilities of the scanning
device to process and send (scanned) tags.
Table 1. Tag capacity in relation to scanning device infrastructure
Scanning device
Communication network
Max #BLE tags scanned = scanning device capacity
TRACK 1200, TRACK 1201, TRACK 1202 or TRACK 1203
4G/2G
100
ZA 3500
LAN or WI-Fi or 4G
2000 (recommended limit)
ZA 3505
NB-IOT
100
Mobile device
Device communication network
1000
Note: For larger dimensioning of scanning BLE tags at once contact
Sensolus to make a project-specific investigation.
Note: 3rd party BLE tags can be used in the tag tracking solution, but
there are some constraints:
The tags should use the iBeacon format
The tags must be registered in the Sensolus platform (Sensolus intervention
required)
A platform subscription cost applies
there is maximum 1 UUID per organization (for all tags and must be configured for all
scanning devices)
