Creator Wireless IR Interpretation System Manual de usuario descargar pdf (Pagina 11)

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Digital IR Language Distribution System User Manual

1.4.3 The surface of the walls, ceiling, floor

and curtain

IR is just like visible light, and can be

reflected by shining, smooth surface and

absorbed by dark, rough surface. The reflected

light generally can help by transmitting signals,

and won’t cause any damaging interference. In a

room with shining, smooth surfaces, the required

power of the radiating panel is lower than the

room with dark, rough surfaces, as curtain and

carpet.

Otherwise, the reflecting effect can be very

different when the texture of the floor is different:

the shadow of the walls and furniture can interfere

the IR transmitting. But if we use enough radiating

panels and allocate them properly, this problem

can be solved. At the same time, it should be

noticed that the radiating panels cannot

positioned to face the windows without curtains,

which can reduce the radiating effect. As shown

in Fig. 1-7, there is difference in the reflection

effects for floors of different texture.

100% 100%

40% 80%

Fig. 1-7 there is difference in the reflection

effects for floors of different texture.

1.4.4 The coverage of the radiating panel

In the system, the coverage is decided by

radiating controller’s carrier wave and the

radiating panel’s output power, and the coverage

will be enlarged when there are more radiating

panels. The radiating panels’ total radiant

intensity is allocated in the controller according to

the amount of the carrier wave, and when the

used carrier wave increase, the coverage’s

percentage will decrease accordingly.

As shown in the following figure (the white

part),the crossing area of the radiation

allocation area and the receiving area of the

people’s receiver is the coverage. Within the

coverage area, if the radiating signal can reach

the receiver directly, the intensity of the direct

signal can be enough to be received. Here the

following are some illustration figures for

installation for your reference:

15°installation figure

45°installation figure

90°installation figure

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 27 28

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Creator Wireless IR Interpretation System Manual de usuario Pagina 11

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