No. tt2 is generally quite lightweight for modern devices. 

Yes. The tt2 Engine generates about 3-4 positions per second and typically uploads generated positional data to data servers every 20 seconds.

1. Finish the three steps in “Getting started”
a) Server set-up
b) Map generation
c) tt2 SDK integration

2. Initiating the tt2 positioning
There are several ways you can initiate the positioning. In essence, all tt2 needs is a starting position and angle of the device and the system will take it from there. The more precise the starting position is, the more precise the system will be from the start.
Cannot deliver an accurate starting point? No worries, tt2 can handle insecure starts as well. An insecure start will lead to an insecure position to begin with, but the tt2 positioning engine will narrow it down over time and find the most probable position for the user.
Below are some common methods of starting the tt2 positioning:

a) Cradle start
In some instances, e.g., retail hand scanners, the devices always start from cradles with a known position and angle. This information is used to give tt2 an accurate starting point and tt2 will deliver accurate positioning from the start.

b) Start by scan
When creating the digital representation of your map you can choose to add barcodes and QR codes to locations throughout your map. This information can be used for starting the system. As the user scans a barcode or QR code of known position, you can choose to deliver that position as a starting point to the system, and tt2 will handle the rest from there.

c) Start by GPS
Although the GPS generates subpar positioning in indoor venues, it can be enough to give tt2 an approximate starting position. The algorithms powering the positioning will narrow the position down with time, and eventually catch up with the user.

d) Any other input
We have made the SDK as open and adjustable as possible, meaning that you can use any set of coordinates you like for starting the system. If you have a better starting option for your use case than the examples mentioned above, nothing is stopping you from using it!

Unlike most other IPSs, tt2 can determine the direction of the user’s device. The tt2 system is generally very reliable when it comes to direction. The exact reliability depends on a plethora of factors, e.g., the certainty of the start angle, the quality of the device’s sensors, and the user behaviour.

MapGen, tt2’s map creation tool, that takes a floor plan in PDF format as input and generates a digital representation of that map. MapGen allows you to edit and design your map freely, position barcodes throughout the venue, create zones, and much more. Contact us to get a 1-on-1 guide on MapGen and how to create a map.

The floor plan needs to be to scale and have a known distance marked out. Ideally, the floor plan should only include structural elements and physical obstacles that the user cannot pass through. Don’t have a map without clutter? No worries, unnecessary clutter can easily be removed from the map in the MapGen editor after creation.