How to evaluate
an Indoor Positioning Technology
Indoor Positioning Technologies
Usually most infrastructure-free technologies use also fixed beacons to increase accuracy, so most of them are semi-free infrastructure based. Also IPS technologies can be differentiated based on the accuracy and ease of installation/maintenance. The ease of installation/maintenance practically depends on the fact that a particular technology uses fingerprinting process or not.
Follows a grid with technologies comparison and differentiation based on scalability (number of users simultaneously localizing), ease of setup and maintenance, power consumption, hardware cost, special hardware required (user side).
As you can notice, Nextome main competitive advantages are accuracy and ease of use/maintenance because no fingerprinting is necessary.
|TECHNOLOGY||ACCURACY||SCALABILITY(*)||EASY OF SETUP (1=easy, 5=difficult)||POWER CONSUMATION||HARDWARE COST||SPECIAL HARDWARE|
|BLE + MLV3 + IntelliWalk + Particle= Nextome||1,5-2m||Unlimited users||2 Need to install BT Beacons at suggested positions||Low||Low||Not required|
|WiFi Fingerprinting (with SLAM)||5-10m||Limited / depends on infrastructure||2 Needs to relocate wifi access points||Medium||No (Uses existing)||Not required|
|WiFi AoA/TDoA||40cm-1m||Limited / depends on infrastructure||4 Needs Fingerprinting||Medium||No (Uses existing)||Yes|
|Bluethoot Low Energy Only trilateration||3-4m||Unlimited users||2 Needs to install BT Beacons||Low||Low||Not required|
|Visual Ligth Communication||10cm-1m||Unlimited users (theoretically)||3 Needs installation of special led laghts||High||High||Not required|
|Magnetic Fingerprinting||2,5-5m||Limited / depends on infrastructure||4 Needs Fingerprinting||Medium (continuous internet polling)||No - Low (praticaly uses also beacon)||Not required (theoretically)|
|Ultra Wide Band||10cm-1m||Limited / depends on infrastructure||3 Needs to install UWB Routers||Low||High||Yes|
|WiFi Trilateration||5-10m||Limited / depends on infrastructure||2 Needs to relocate wifi access points||Medium||No (Uses existing)||Not required|
(*) in terms of simultaneous users
Solution Design Drivers
What are the problems that we have faced on our installations? Retail, Exhibitions, Fairs, Trade Shows.
The ceiling is usually higher than 5-6 meters height and the place is very crowded.
We solved these problems by mounting BLE Beacons on booths (on isles and columns). Thanks to our signal filtering algorithm and thanks to the crowd sourcing beacons technology integrated in Nextome, our technology still delivers great accuracy even in very crowded places.
Manufacturing (Car Producing Company)
Here the problem is the extreme noise of the beacons signals caused by robots (in metal) moving. We have solved this problem with our strong non linear multipath mitigation filter, patented and integrated by default in Nextome Technology.
Here the problem is the thickness of the walls, causing signal to not pass from one room to another (especially in Italian’s old museums and buildings). Thanks to the flexibility of the beacon technology, we have solved this problem by simply add few more beacons when necessary and reference their positions on Nextome Content Management System all in a matter of seconds.
Metro Stations / Airports
The problems with Metro Stations and Airport are very similar to Exhibitions: the crowding level and ceiling height. We have solved these problems by mounting beacons on walls and columns when present, and thanks to our signal filtering algorithm and thanks to the crowdsourcing beacons technology integrated in Nextome, our technology still delivers great accuracy even in very crowded places.
Logistic Services / Industry
The problem here is the amount of iron that causes bouncing of signals all around . We solved this problem with our strong non linear multipath mitigation filter, patented and integrated by default in Nextome Technology.
Health / Hospitals
The problem is the coexistence of Nextome with health devices. Nextome uses only low energy bluetooth 4.0 (5.0 in future) beacons which are demonstrated to coexist with medical devices.
Generally, for optimum installation beacons are required to be installed at a high not over 6 meters and can illuminate an area not greater than 100 square meters, therefore attach point must be available to reach the required density of deployed beacons.