PD-20001-R1
Stagetracker II User Manual
6
3
Terms and definitions
3.1
Terms
In this document we use the following terms.
RE / RadioEye
This is the directional receiver. It contains 60 antennas that can be electrically tuned to function
as a high gain directional antenna.
Tag
Small black rechargeable transmitter that is positioned using the REs. These tags are assigned to
a Tracking Object, and typically worn hidden under the clothes.
Tracking Object
Person or object that are tracked. Each Tracking Object is assigned two Tags.
Output Position
The position that is transmitted to a Position Consumer.
Position Consumer
A
piece of SW / HW that shall receive position information from the Stagetracker II™ over an
ethernet connection.
Tracking Area
This term is used for the area / volume that we allow the objects to be positioned within. This
will typically cover a bit more than the actual stage area, such as the crossover and the technical
areas close to the actual stage area. Should not include the REs themselves.
Active Area
The area in which Stagetracker II shall supply position information to the Position Consumers.
The Active Area can be different for different actors and for different Position Consumers. The
Tracking Object position is still updated internally in the SW, but the Output Position is not
changed until the Tracking Object enters an Active Area again.
User
Person that installs, configures and operates the Stagetracker II™
.
3.2
Stagetracker II™ coordinates
In the world of lighting and sound systems there is a plethora of different coordinate systems and ways to specify a position
and direction. Internally, Sta
getracker II™ uses
X, Y and Z / height:
•
X is from stage right/house left to stage left/house right.
•
Y is from downstage towards upstage.
•
Height / Z is measured from the stage floor and upwards.
Thus, if you are seated in front of the stage:
•
X is pointing to the right.
•
Y is pointing away from you, towards the back of the stage.
•
Height / Z is up.
3.3
Output coordinates
The various output modules may (and will) have different coordinate systems. The
Stagetracker II™
system can convert
from internal coordinates to the output coordinates using a set of transformations. These are described under each of the
different output modules.