BLE (Bluetooth Low Energy) Beacons are a power-friendly version of the Bluetooth Wireless technology. These devices use a short-range radio frequency (in the spectrum of 2.4ghz). MOCA can use this short range frequency to infer the distance between a receiver (a mobile phone) and the emitter (an iBeacon compliant BLE Beacon).
The distances below are approximations of the distances which the MOCA SDK uses. The distances may vary depending on the obstacles near the beacon which, for example, absorb part of the signal.
|On Immediate||Between 0m and 2m|
|On Near||Between 2 and 7m|
|On Far||More than 7m|
Environment effect on distances
MOCA's SDK converts the beacon's signal intensity or RSSI into distances. These distances are an approximation and may vary greatly from device, beacon and environment. Some surfaces provide more range due to a surface that facilitates the RF to rebound, some materials provide a degree of RF shielding (which hinders the ranges greatly) and some devices and/or beacons have a high powered antenna and/or sensitivity. Please refer to the manufacturer documentation per device, and also take into consideration the environment where the beacons are going to be placed (materials, structure and effective distances).