3. PROBLEM DEFINITION - P-Div-Engg-Exploration-Odd-2026-27/Repo-09 GitHub Wiki

NEED STATEMENT : AUTOMATIC CUP DISPENSER

3.1 Question and answer

S_no Questions Answers
1 What is the basic function of cup dispenser Dispense the cup
2 How much time does it takes to dispense the cup? 2 seconds
3 How many cups it should store? 15 cups
4 what should be the size the model? 50 cms
5 What type of cup do we need to use? Cornstarch cup
6 What should be the distance to sense the Hand? 10 cms
7 Should we need socket one or battery dispenser? Adapter type
8 Do you need Alert sound before dispensing the cup? Yes
9 Do you need Alert sound before cup holder getting empty? Yes
11 Do you need any activity done by model other than dispensing the cup? No
12 Where will this system be deployed? On table
13 Do you also need a manual button to dispense ? no
14 What is the Budget? Rs10,000
15 what should dispenser detect and dispense the cup Hand

3.2 Basic survey and requirements

2.1 For concept design 1

Sl. No. Components or Parts used: Electronics Components or Parts used: Mechanical Mechanism / Working Principle Identified Links
1 DC motor belt,wheels cup separator Mechanism https://youtube.com/shorts/oz-Vs6NazOU?si=hLHOMFWPZXR7gzQ1
2 Servo motor Linkage Slider Mechanism https://youtube.com/shorts/DCz2ErHpJgg?si=-uYUCAcoE9CMG5y7
3 Buzzer Alert
4 Arduino UNO As a Brain of system
5 Adapter Power supply
6 IR sensor Hand Detection

2.2 For concept design 2

Sl. No. Components or Parts used: Electronics Components or Parts used: Mechanical Mechanism / Working Principle Identified Links
1 Servo motor Strings Claw Griper Mechanism https://youtube.com/shorts/TWap2EUefBA?si=3BBdIp5DM54NHl0Y
2 DC Motor Wheels Rotatary Indexing Mechanism
3 LED light Alert https://youtube.com/shorts/b5nQ08eCd3E?si=uAZa5e_O9Adne8XK
4 9V Battery Power Supply
5 Arduino Nano Microcontroller logic execution https://youtu.be/ofYLsAwj5Go?si=OpQV6U8KmkAo1KMv
6 Photoelectric Sensor Hand detection

2.3 For concept design 3

SI NO. Components or Parts Used:Electronics Components or Parts used:Mechanical Mechanism/Working Principle identified Links
1 Geared Motor Rotating Disc Rotary Dispensing Mechanism https://youtube.com/shorts/QLicch6hSak?si=Y4rS34Fi5_kSCvaR
2 Stepper Motor BallScrew,linear rail,slider Lead Screw Mechanism https://youtube.com/shorts/s_Nxd_A9Aao?si=iXFv_cK5_iJFu40q
3 ESP32 Automatic Control System  
4 USB Power Banks   Power Supply  
5 Ultrasonic Senser   Detect Hand  

2.4 For concept design 4

Sl. No. Components or Parts used: Electronics Components or Parts used: Mechanical Mechanism / Working Principle Identified Links
1 Strepper Motor Sliding frame,spring,cam wheel Reciprocating mechanism https://youtube.com/shorts/HWDkaef7mZE?si=RKlu7m3Fzqzvwvkl
2 DC motor Belt Belt Mechanism https://youtu.be/o7VVmtX7SKs?si=thTHLIzzmb3nLoCY
3 Screen Alert
4 Arduino micro As a Brain of system https://youtu.be/mvv1BRjswew?si=lXCN5yuOzjDVNjV_
5 12v adapter Power supply
6 Capacitor sensor Hand Detection

3.3 Identifying client's objectiives

S.no Objective
1 Runs on Adapter
2 Cylindrical holder and Cuboidal Base
3 It should be deployed on table
4 Reduce human effort
5 Ensure safety

PROBLEM DEFINITION VERSION 1.1

The design of Automatic Cup Dispenser, which should be simple, convenient, hygienic and easy to use. The cups used in the dispenser is cornstarch cup. The cup dispenser should be kept on the table. The cup holders should be in cylindrical and the base should be in cuboidal form. The Design runs with power adapter. it should ensure safety.

3.4 Identify constraints

S_no Constraint
1 Time taken to dispense the cup is 2 sec
2 15 cups in Holder
3 The size of holder should be 40cm and the size base should be at least 5cm tall and 30cm wide
4 It should detect the hand within 10cm
5 Approx Rs.10000 Budget
6 the cornstarch cup of dimensions 80mm upper diameter, 60mm lower diameter, 107mm Height

PROBLEM DEFINITION VERSION 1.2

The design of the Automatic Cup Dispenser should be able to dispense one cup at a time within a 2 seconds of sensing the hand. The dispenser should hold at least 15 cups in the holder. It should detect the hand within 10cm and dispense the cup. The size of holder should be 40cm, The size base should be at least 5cm tall and 30cm wide. The budget of project can be up to Rs 10,000 and the cornstarch cup of dimensions 80mm upper diameter, 60mm lower diameter, 107mm Height.

3.5 Establish Functions

S_no Function
1 Hold the cup
2 Detects hand
3 Separate one cup from the stack
4 Dispense the cup
5 Detect low stock of cups
6 Alert sound

PROBLEM DEFINITION VERSION 1.3

The design of Automatic Cup Dispenser, which should be simple, convenient, hygienic and easy to use. The cups used in the dispenser is cornstarch cup. The cup dispenser should be kept on the table.It should ensure safety. The cup holder should be in cylindrical and the base can be cuboidal form and the design runs with power adapter. The cup dispenser should dispense the cup automatically when the hand is detected.The dispenser should be splash resistant and dust resistant. it should alert the user before the cups run out in the cup holder. It should dispense one cup at a time within 2 seconds of sensing the hand.it should alert before dispensing the cup through sound . It should detect the hand within 10cm and dispense the cup. The dispenser should hold at least 15 cups . The size of holder should be 40 cm. The size of the base should be at least 5cm tall and 30cm wide. The budget of project can be up to Rs 10,000and the cornstarch cup of dimensions 80mm upper diameter, 60mm lower diameter, 107mm Height.

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