3. PROBLEM DEFINITION - D-Division-2021-22-ODD/Repo-03 GitHub Wiki
NEED STATEMENT
The RBI produce coins and store them according to rupees wise. In order to save time and labour, the bank goes for coin counting machine.
3.1 Question and Answer
Table 1: Questions and answers
| SL.No | Questions | Answers | Objective | Function | Constraint |
|---|---|---|---|---|---|
| 1 | Should sorting be done by identification or based on size? | Based on size | Yes | ||
| 2 | What should be the dimensions of the machine? | Less than 1.5ft'2ft'1.5ft | Yes | ||
| 3 | What is the estimated budget for the machine? | Rs.3000 | Yes | ||
| 4 | Should the machine be automatic or manual | The machine should be semi-automatic | Yes | ||
| 5 | For the movement of coins,should electricity be used or a battery? | Battery | Yes | ||
| 6 | Should the machine be user friendly? | Yes | Yes | ||
| 7 | Should it notify the user when there is a problem with the machine? | Yes | Yes | ||
| 8 | What should be the weight of the machine? | Less than 2kg | Yes | ||
| 9 | Should the machine be fixed or portable? | The machine should be portable | Yes | ||
| 10 | What is the duration for the machine to be completed? | 2-3 weeks | Yes | ||
| 11 | How many types of coins should be considered? | 3 types (Denominations of 1,2,5) | Yes | ||
| 12 | How many coins should be sorted in a minute? | 20-30 | Yes | ||
| 13 | Should it detect the number of coins sorted? | Yes | Yes | ||
| 14 | Should the user get to know after coins are sorted | Yes | Yes | ||
| 15 | How should the movement of coins be done? | The coins should be moved with the help of the vibrating motor | Yes | ||
| 16 | For how long should the machine work in a day | 5-6 hours continuously | Yes |
3.2 Basic Survey and Requirements
Table 2: Observation from a literature survey
| SL.No | Observation from surveys | Requirements |
|---|---|---|
| 1 | Weight of machine | It should be easy to carry and transportable |
| 2 | Budget | Machine should be built with minimum budget |
| 3 | Nature of materials | Materials used should be non-toxic,light weight and non hazardous |
| 4 | Number of coins to be sorted | 20-30 per minute |
| 5 | Dimension of the machine | It should occupy minimum space and should be easily portable |
3.3 Identifying Client's Objectives
Table 3: Identified objectives
| SL.No | Objectives |
|---|---|
| 1 | Sorting is done based on size |
| 2 | The machine should be semi automatic |
| 3 | Battery is used for movement of coins |
| 4 | The machine should be user friendly |
| 5 | The machine should be portable |
Problem Definition Version 1.1:
Design a semi-automated coin counting machine which is user friendly,portable and effecient.The machine should sort and count the coins accurately.
3.4 Identify Constraints
Table 4: Identified Constraints
| SL.No | Constraints |
|---|---|
| 1 | The dimensions of the machine should be less than 1.5ft'2ft'1.5ft |
| 2 | The budget should be within Rs.3000 |
| 3 | The machine should be completed in 2-3 weeks |
| 4 | The machine should sort 20-30 coins per minute |
| 5 | The machine should weigh less than 2kg |
| 6 | 3 types of coins are considered |
| 7 | The machine should work for 5-6 hours continously |
Problem Definition Version 1.2:
Design a semi-automated coin counting machine which is user friendly,portable and effecient.The machine should sort and count the coins accurately.Machine should not exceed the volume of 1.5'2'1.5 cubic feets,should be lightweighted and budget friendly.The machine should work for 5-6 hours continuously in a day and should sort atleast 20-30 coins per minute.
3.5 Establish Functions
Table 5: Identified Functions
| SL.No | Functions |
|---|---|
| 1 | Sort the coins |
| 2 | Movement of coins |
| 3 | Detect number of coins sorted |
| 4 | Coins are placed in respective container |
| 5 | Motor is used for coins' movement |
| 6 | Holes of different dimensions is done |
| 7 | Notify the user if battery gets discharged |
| 8 | Alarm the user after coins are sorted |
Problem Definition Version 1.3:
Design a semi-automated coin counting machine which is user friendly,portable and effecient.The machine should sort and count the coins accurately.Machine should not exceed the volume of 1.5'2'1.5 cubic feets,should be lightweighted and budget friendly.The machine should work for 5-6 hours continuously in a day and should sort atleast 20-30 coins per minute.Vibrating motor is used for the movement of coins and holes 3 different dimensions should be done.The machine should notify if battery is discharged and should alarm after coins are sorted.