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Shake and Bake:

Preliminary Design Report

October 12, 2011

The ingredient dispenser consists of four primary subsystems: the power supply, the user

interface, the control unit, and the dispensing unit. The relationships between these four

components are shown in Fig. 1. The power supply provides electrical power to the other three

units. The user interface communicates with the user, receiving commands and providing

information about the dispensing status. The control unit determines the ingredient and the

amount of that ingredient to be dispensed. The dispensing unit transfers the ingredients out of

the unit for use by the user.

Figure 1: Level 1 Functional Block Diagram for Device

These four units are further decomposed in level 2 block diagrams on the following

pages. For all diagrams, the inputs and outputs for each unit are indicated with arrows. Dotted

lines represent a signal, solid lines represent power, and bold lines represent materials.

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Adesso NUSCAN 3200 series Manuale Utente Pagina 6