2. Problem Definition. - m-division-2018-2019/Team-17 GitHub Wiki
PROBLEM DEFINITION
Designers:
1.Shivani Nazare
2.Keerti Yadgir
3.Tushar Gupta
4.Rahul Chougule
Clients: Ms.Jyoti Gadad
Users: Arcades
Need statement:
Gesture based robot is slowly gaining its momentum in industrial application. A science museum is interested in showcasing this new trend.
| SR.NO | QUESTIONS | ANSWERS | |
|---|---|---|---|
| 1. | How will the gesture controlled robot be helpful? | Gestured Bots can be used in games in which the objective is to sort the blocks of different colours. | Objective |
| 2. | What can be the dimensions of the bot? | The bot can be 1ft*1ft in length and breadth and height 1-3ft approximately. | Objective & Constraint |
| 3. | How should the gesture based machine work? | It should work based on gestures made by the user remotely. | Objective |
| 4. | How must be the appearance of the bot? | Should be stable, structurally strong. | Objective |
| 5. | Where should the bot be used? | It is to be used in arcades and gaming zones. | Objective |
| 6. | How responsive should the bot be? | The bot should react to the gestures as quickly as possible. | Objective |
| 7. | What is the minimum weight of the objects the bot will be able to pick? | It should be able to pick 20-25 gms. | Constraint |
| 8. | How many objects can it pick in a minute? | It should able to pick 7-8 objects per minute. | Constraint |
| 9. | What should be the approximate cost of the bot? | The cost should be approximately 4000/- to 6000/- | Constraint |
| 10. | What can be the approximate weight of the bot? | The weight should be less than 5kg | Constraint |
| 11. | Upto what range will the bot be able to sense the gestures? | It should sense gestures upto 1-2 meters. | constraint |
| 12. | Do we have a deadline to deliver the bot? | Yes, we need the bot delivered by 25th April,2019. | Constraint |
| 13. | How will the bot respond when there are no objects ahead? | It should give an indication that there is no object around. | Function |
| 14. | How will the bot be operated? | The user should be able to operate remotely by hand gestures. | Function |
| 15. | How freely should the bot be able to move? | It should be able to bend, turn around, and move forward. | Function |
| 16. | Should the bot sense any obstacle around? | Yes, it should sense the obstacles around it. | Function |
| 17. | How does the bot react to the game winner? | It should be able to give an indication to the user if he wins. | Function |
| 18. | How many different size boxes should the bot be able to grab? | The bot should provide the user with the function of controlling the size of the gripper such that he can stop the contraction and expansion of the gripper. | Function |
| 19. | What should the limit be upon surpassing which the user wins? | 4 blocks | Function |
1.1 Identify Client's objectives
Step 1: Prepare a list of design objectives
| SR.NO | OBJECTIVES |
|---|---|
| 1. | Picking and Placing |
| 2. | Compact Size |
| 3. | Remote operation |
| 4. | Stability |
| 5. | Quick Reaction |
Prioritize the identified design objectives
Priority among various objectives is set through a technique called Pair-wise Comparison Chart(PCC).
| OBJECTIVES | Picking and Placing | Compact Size | Remote operation | Stability | Quick Reaction | SCORE |
|---|---|---|---|---|---|---|
| Picking and Placing | * | 1 | 0 | 1 | 1 | 3 |
| Compact Size | 0 | * | 0 | 0 | 0 | 0 |
| Remote operation | 1 | 1 | * | 1 | 1 | 4 |
| Stability | 0 | 1 | 0 | * | 1 | 2 |
| Quick Reaction | 0 | 1 | 0 | 0 | * | 1 |
Rank the objectives in order of decreasing value of the importance and the list is:
1.Remote operation
2.Picking and Placing
3.Stability
4.Responsive
5.Size
Based on the information gathered through interaction with client, initial survey and completing phase 1.1 the problem definition is formulated as follows
Problem definition version 1.1
To design a bot controlled remotely by gestures which can pick and place blocks and sort the blocks based on colours . It should be stable enough and respond as quickly as possible. The bot should be 1ft*1ft in length and breadth and height 1-3ft approximately.
Identify constraints:
1.It should be able to pick 20-25 gms.
2.It should able to pick 3-4 objects per minute.
3.The cost should be approximately 4000/- to 6000/-.
4.The weight should be less than 5kg.
5.It should sense gestures upto 1-2 meters.
6.Yes, we need the bot delivered by 25th April,2019.
Problem definition version 1.2
To design a bot controlled remotely by gestures which can pick and place blocks and sort the blocks based on colours. It should be stable enough and respond as quickly as possible.The bot should be 1ft*1ft in length and breadth and height 1-3ft approximately. It should weigh less than 5 kg and should able to pick and place 3-4 objects of 20-25 grams in one minute. It should be able to sense the gestures made by the user upto a range of atleast 1-2 meters. It should cost approximately 4000/- to 6000/- rupees. It should be ready by 25th April,2019.
Establish Functions:
1.It should give an indication when there is no object around.
2.The user should be able to operate it remotely by hand gestures.
3.Yes, it should sense the obstacles around it.
4.It should be able to bend, turn around and move forward.
5.The bot should provide the user with the function of controlling the size of the gripper such that he can stop the contraction and expansion of the gripper.
6.It should be able to give an indication to the user if he wins.
Problem definition version 1.3
To design a bot controlled remotely by gestures which can pick and place blocks and sort the blocks based on colours. It should be stable enough and respond as quickly as possible.The bot should be 1ft*1ft in length and breadth and height 1-3ft approximately. It should weigh less than 5 kg and should able to pick and place 3-4 objects of 20-25 grams in one minute. It should be able to sense the gestures made by the user upto a range of atleast 1-2 meters. It should cost approximately 4000/- to 6000/- rupees.It should be ready by 25th April,2019. The user should able to operate it by making hand gestures and should be able to bend, turn around and move forward. It should give an indication when there is no object around and should sense if there's any obstacle around. The bot should provide the user with the function of controlling the size of the gripper such that he can stop the contraction and expansion of the gripper. It should be able to give an indication to the user if he wins.