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| CLICK HERE FOR INDEX PAGE |
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| SYSTEMS PREPARATION QUESTIONS 2008 - 9 |
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| V. Ryan © 2008-2017 |
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| PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET |
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| The theme park has invested heavily in animatronics as
a form of entertainment whilst people are queuing for rides. What is
animatronics? |
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| ANSWER |
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| An animatronic system is usually a device that has
moving parts, involves sound and lights. The movement, sound and lights
are controlled by programmed electronics or a computer system. A good
example is a life size character that moves. lights up and makes sounds
automatically. |
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| A range of mechanisms can be used to produce movement
in animatronic systems. In the space below draw three different types of
mechanisms and explain how they could be used in an animatronic system. |
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| ANSWER |
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| The animatronic system (a clown) seen below is composed
of two arms that move, a bow tie that revolves and a hat with three ultra
bright LEDs. The LEDs light in sequence. It is controlled by a PIC
Microcontroller. |
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| What does PIC mean? |
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| ANSWER |
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| Peripheral Interface Controllers |
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| Why are bulbs being replaced by LEDs? |
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| ANSWER |
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| Light Emitting Diodes are more efficient that bulbs and
only require three volts whereas bulbs consume more electricity. LEDs last
on average three thousand hours of constant use. Bulbs need replacing
regularly and often only last a few hours. LEDs come in a range of colours
and are cheaper to purchase. |
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