Team2_VFood_Block Diagram & SW Flowchart 23.11

8/3/2019 Team2_VFood_Block Diagram & SW Flowchart 23.11

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GE401- Innovative Product Design & Development I

Block Diagram & SW Flowchart

11/23/2011

VFood

Team 2Seydi Afin nlEmirhan Akdemir

Cansu Acar

Melodi TrkiliOnur entre

Engin yidoan

Version 1.1


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Table of Contents

Introduction ..............................................................................................2

Block Diagram of MacQuick.....................................................................2

SW Flowchart of MacQuick......................................................................4


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Introduction

In this document, we will explain working principle of our system by using software

flowchart and block diagram. In software flowchart, steps show progress of program for

different cases which are explained in each box. Software flowchart is closed loop. In block

diagram instead, connection of hardware systems is shown independent from responses.

Block diagram is open loop system and its end point becomes output. We used Microsoft

Visio in designing of block diagram.

Block Diagram of MacQuick

Bill validator: It takes money form user and read money as input. Then, it sends the amount

of money to arduino uno as output.

Keypad: User enters his/her choices which are inputs for keypad. Then, keypad sends

information to arduino uno as output. Arduino ps2 keyboard library will be used.

LCD: Arduino sends information to the LCD for displaying. Information which is coming

from arduino is input and displaying message is output for LCD. HD44780 protocol is used in

connection between microcontroller and LCD.

Presence Sensor: Sensor detects the presence of plastic bowl and sends information to

arduino about the presence. Detection result is input for sensor and information about

presence is output. Output is binary.

Arduino uno: Works as microcontroller in this product.

Motor driver: It takes command from arduino uno and sends them to stepper motor.

Stepper motor: It works after command of motor driver and they make helical mixer to run.

Helical mixer: Helical mixer turning with stepper motor.

Ingredients Check Leds: Ingredients check leds are controlled by arduino uno. Ingredients

amounts are kept in memory.

Temperature Sensor: It measures temperature and send temperature level to control card.

Output send to control card by using ADC.

Control Card: It controls temperature and give command to compressor to open/close system.

Compressor: It takes information from control card and works accordingly by changing

temperature level. Gas compressor is used in this product.


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Bill Validator Keypad LCD

Arduino Uno

(Microprocessor)

Presence

Sensor

Motor

Driver

A4983

I

Motor

Driver

A4983

VI

Motor

Driver

A4983

II

Stepper

Motor I

(14W,

Stepper,DC)

Hellical

Mixer

I

Hellical

Mixer

II

Hellical

Mixer

VI

Temperature

Sensor

Gas

CompressorControl Card

Block diagram of Cooling System

. . .

. . .

Ingredients

Check Leds

(RED)

Ingredients

Check Leds

(GREEN)

To understand the

presence of plastic bowl

To take and count money

To show

absence of

ingredients

To show presence

of ingredients

To measure

temperature

Enable cooling of

system

Check temperature

level

Block diagram of MacQuick

ADC

Digital

output

HD4478

0

Protoc

ol

Stepper

Motor II

(14W,

Stepper,DC)

Stepper

Motor VI

(14W,

Stepper,DC)

. . .

Power

Supply

220V AC

24V DC

Voltage

Regulator

35V DC

Voltage

Regulator

12V DC

Voltage

Regulator

7V DC

Voltage

Regulator


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Software Flowchart of MacQuick

In this section the software flow chart of MacQuick is explained. The complete vending

process is given step by step in following.

1. When the ingredients are filled and the MacQuick is plugged in the machine starts.When it is filled, the amount of ingredients is set to full.

2. First, ingredients in each slot are checked. If there is a missing ingredient, the status isset to missing and a specific LED is turned to red. If not, it writes Ready to LCD.

3. And start to wait for someone to come and pay for the macaroni. When the sufficientamount of money is paid it moves to step 4 given below.

4. MacQuick starts to wait user to push the specific ingredient button or done buttonwhich means the user finished to choose ingredients and s/he wants the macaroni.

5. If ingredient button is pushed, the ingredient is displayed in LCD. Increase thecounter of the ingredient. And if user wants any more ingredients, s/he just presses

the button of it and the same process repeats. If user pushes Give me my macaroni

button, program moves to the step 6.

6. Presence sensor checks whether there is an empty bowl is placed into the output boxor not. If not wait until the bowl is placed. If it is placed, the macaroni preparation

process begins.

7. Write Preparing in LCD until the preparing process is completed. When it is donethe process is repeated from the beginning. And again checks ingredients.

The cooling system will be controlled separate from Arduino Uno which is our main

controller card. It basically starts the compressor when the temperature is above 15 degree

Celsius and stops the compressor when the temperature is below 15 degree Celsius.


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Team2_VFood_Block Diagram & SW Flowchart 23.11