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Fig1-1
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.
Fig.1-2 radiator coordinate illustration
1.4.2
The relation between the radiator 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
F.1-3. Installation with obstacles
Fig.1-4 installation without obstacles
Fig.1-5. Direct emission and reflect
Digital IR Language Distribution System User Manual
IR receiver ‘s best receiving range
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