CREATOR Wireless IR Interpretation System - Manual (Page 10)

CREATOR CORPORATION (CHINA) 2010-04 WWW.CREATOR1997.COM
3 Digital IR Language Distribution System User Manual
Fig.1-2 radiating panel coordinate illustration
1.4.2 The relation between the radiating panel
and the seats arrangement
If the receiver is accurately directed to the
radiating panel, the receiver can get the best
effect signal. If the radiating panel or the receiver
gets off the light axe, the received energy will
descend. But within, as long as there is no direct
screen between the receiver and the radiating
panel (for example screened by the delegate’s
body or other objects), the energy can still be
sufficient.
To ensure the best signal transmission, the
allocation of the radiating panels has to be suited
to the seats’ positions. The ideal way is to have
the radiating panel emit directly onto the seats.
This is one way of designing the installation
solution.
Obviously, we should prefer the way of
installation shown in Fig.1-4. But in actual
installation, the way shown in Fig.1-4 can hardly
be achieved, and then, we need employ the help
of reflection to achieve the full cover of the signal.
In Fig. 1-5, this delegate’s receiver can not
only receive the direct emit from the radiating
panel but also the reflected signal from all
directions. In this situation, the reflected signal
can strengthen the signal. In Fig.1-6, this
delegate receives only reflected signals, and the
signal he gets in this situation is relatively weaker,
but sufficient enough. In order to avoid people’s
screening of the IR signal, the installation height
of the radiating panel should be higher than 2.5m.
F.1-3. Installation with obstacles
Fig.1-4 installation without obstacles
Fig.1-5. Direct emission and reflect
Fig. 1-6 Reflect