User Manual Part 1

IS-900 User Guide Page 19 of 159
The SoniDiscs’ acoustic pulses are detected by miniature microphones integrated in the Tracked
Stations.
Details of the assembly and set up of the SoniFrame and SoniWing are found in a supplemental
manual in your IS-900 product CD.
1.6. Acoustic Constellation Mounting Considerations
The IS-900 product family offers a wide range of options to meet the needs of many different
tracking environments.
SoniStrips are normally mounted from the ceiling over the desired tracking workspace. To
increase the flexibility of this system, the IS-900 has been designed with different sized SoniStrips
for mounting in a variety of immersive environments (CAVE®/CAVE-like, Reality Center, iCenter,
ImmersaDesk, ReaCTor, PowerWall, CUBE, etc.). The user is able to position SoniStrips in most
environments, including confined spaces such as virtual workbenches, automobiles, and cockpit
simulators. Once installed, the user must calibrate the SoniStrip Constellation by measuring the
Cartesian x, y, z coordinates of each SoniStrip and enter this information using the Constellation
Configuration Utility Program provided with the system. A trained technical representative should
perform the process of calibration. InterSense provides installation and training upon request.
Adjusting the tracking volume is easily accomplished by selecting the appropriate ultrasonic
Constellation components. Options include different sized SoniStrips, discrete SoniPods and pre-
calibrated SoniFrame or SoniWing structures.
1.6.1. SoniFrame & SoniWing Fixed Constellations
The fixed frame SoniFrame assembly provides up to a 2 x 2 x 3 meter tracking volume with no
special sighting or calibration of the SoniStrips. The three SoniStrips easily mount to the
SoniFrame assembly to produce a repeatable rigid structure that is portable and convenient to
use. The SoniFrame provides a quick and convenient method for setting the IS-900’s tracking
area that does not require optical sighting for calibration.
The aluminum frame is made from a standard extrusion product that when assembled properly
will provide an accurate mounting platform for InterSense’s ultrasonic SoniStrip and SoniDisc
tracking referencing components.
The design of the Fixed Frame provides mechanical mounting options for all InterSense
SoniStrips in all lengths (2-foot, 4-foot and 6-foot) and combinations. Figure 6 shows a typical
SoniFrame fully assembled and ceiling mounted with three 6 ft. SoniStrips.
Interconnect bars are available to assemble multiple SoniFrames together as one structure.
NOTE: When using multiple SoniFrames connected with InterSense’s interconnect bars, the fully
assembled & interconnected frames must be mounted to a rigid structure (i.e. a lighting grid or
ceiling structure). Furthermore, the mounted SoniFrames must be leveled and co-planer in order
to achieve accurate tracking.
The SoniWing is a smaller fixed frame assembly ideal for cockpit simulators or desktop tracking
applications. The SoniWing, like the SoniFrame, does not require special measurement or
calibration. The exact location of the SoniDiscs is measured by InterSense and included in the
ISDEMO Constellation configuration utility program provided with the system. As with
SoniFrames, multiple SoniWings can be utilized with a single system (i.e. a dual cockpit flight
simulator configuration can use two SoniWings to simultaneously track two pilot head positions).