User's Manual

InterSense Doc. No. 072-00105-0I07 Rev. 4.2
IS-900 User Guide Page 18 of 177
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 coplanar 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 has been pre-measured by InterSense and is
included in the ISDEMO Constellation Tool 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).
1.4.2. SoniPods
The SoniPod is a discrete SoniDisc packaged in its own enclosure with mechanical and electrical
interfaces. SoniPods provide the most flexible Constellation configuration option for closed
spaces, cockpits, or spaces that do not offer simple mounting spaces for fixed frames or
SoniStrips. Each SoniPod is connected by “daisy chain” to the next with one cable from the IS-
900 processor. It is highly recommended that InterSense installation engineers are consulted for
configuration, installation and calibration of an IS-900 SoniPod Constellation array.
1.5. Tracking Station Description
For InterSense motion tracking systems, a “station” is the tracked object or device, which by
industry jargon may also be called a sensor or tracker. An IS-900 tracks all stations in a 6-DOF
mode, meaning each tracked device outputs X, Y, Z position information along with a pitch, yaw
and roll orientation information. In addition, the Wand Tracking Station output joystick and button
information for use with the immersive environment software. Figure 8 summarizes InterSense’s
IS-900 Tracking Stations.
Tracked Station
Function
MicroTrax Wand w/ Joystick Tracking
Station
Five button with center push button joystick
MicroTrax Head Tracking Station
Stereo glasses and Head Mounted Display
(HMD) mounted
MicroTrax Hand Tracking Station
Mounted to user’s hand
MicroTrax OEM Tracking Stations
Specific to OEM application
Figure 8 - IS-900 Tracked Stations
Each tracked station sends inertia measurement unit (IMU) data (angular & acceleration rates)
with Ultrasonic Receiver Module (URM) acoustic range data for transmission to IS-900 base
processor via wired or wireless links.
InterSense provides the different types of tracked stations listed above for use in immersive
environments. All of these tracked stations use InterSense’s advanced inertial MicroTrax
technology combined with miniaturized digital acoustic position referencing components.