3. Problem Definition - J-division-2020-2021-even/Repo-07 GitHub Wiki
AUTOMATIC PETRI PLATE LOADING MACHINE
GROUP NUMBER-7
Need statement :
Biotechnologists need to prepare media on Petri plates for culturing of microorganisms or animal cell lines. On average, for the fermentation process, a person needs to prepare 100 plates per day. Automatic Petri plate filling machine loads sterilized media into it. The machine has to move Petri plates to and from the loading site continuously
3.1 Question and answer
| Sl.no | Question | Answer | objective/Function/constraints |
|---|---|---|---|
| 01 | How many petri plate do you need to culture in one hour? | 100 petri plates | Constraints |
| 02 | What must be the dimensions of the petri plate holder? | 60mm in diameter | Constraints |
| 03 | What is your budget? | 10,000 rupees | Constraints |
| 04 | How many carousels do you need? | 220 | Constraints |
| 05 | Do you need the machine to be semi-automatic or fully automatic? | Semi-automatic | objective |
| 06 | What should be the weight of the machine? | 50 kg | Constraints |
| 07 | What should be the source Electricity based or battery based? | Electricity | objective |
| 08 | Do you need the cooler unit to solidify the medium? | Yes | Function |
| 09 | Do you need the machine to be user-friendly | Yes | objective |
3.2 Basic Survey And Requirement
| Sl.no | Observation From Surveys | Requirements |
|---|---|---|
| 01 | weight of the machine | The weight should range between 50 to 55 kg |
| 02 | Number of operations | The machine should work fine for at least 5 to 6 attempts |
| 03 | Cost | Machine should be built with minimum budget |
| 04 | Number of petri plates to be loaded in a hour | The machine should load at least 85 to 90 petri plates in a hour |
| 05 | Materials to be used | Materials used to build, must be non toxic and light weight. |
3.3 Identifying client’s objectives
| Sl.no | objectives |
|---|---|
| 01 | Machine should be Semi-automatic |
| 02 | Machine should be Hygienic |
| 03 | Machine should be smooth and quite |
| 04 | Machine should be user-friendly |
Problem definition version 1 :-
Design a semi-automated petri plate loading machine, which is Hygienic, smooth and quite (i.e. minimum noise emission). The machine should be semi-automatic.
3.4 Identify constraints
| Sl.no | Constrains |
|---|---|
| 01 | Machine should not cost more than 15000/- |
| 02 | It’s speed must be minimum 100 plates/hour |
| 03 | There must at least be 220 carousels |
| 04 | The diameter of carousels must be 60mm |
Problem definition version 2 :-
Design a semi-automated petri plate loading machine, which is Hygienic, smooth and quite (i.e. minimum noise emission). The machine should be user-friendly. The machine should not cost more than 15,000/- and its speed must be minimum 100 plates/hour. The number of carousels (petri plate holder) should at least be 220 and of size 60mm diameter.
3.5 Establish functions
| Sl.no | Functions |
|---|---|
| 01 | Dispense the media into the petri plates |
| 02 | Should have a cooling unit to solidify the medium |
| 03 | Display the number of petri plates which are filled with media and time taken |
| 04 | Move the petri plates |