3.0 NEED STATEMENT:

A commercial businessman who runs a cafe situated in outdoors wants to have an automatic rain sensing umbrella for each table which are situated in outskirts because of increasing Popularity and Vogue.

3.1 QUESTION AND ANSWERS :-

QUESTION	ANSWER	OBJECTIVE/CONSTRINT/FUNCTION
Why we need a rain sensing unit?	To get shelter in rainy season	Objective
Where do need a rain sensing device?	Commercial areas like resorts,cafes..etc	Objective
How will it work?	It's Automatic	Objective
what is the budget?	3000 rs	Constraint
what is the space required?	2ft X 2ft X 2ft	Constraint
What kind of material is required?	doesn't leak and water proof	Constraint
Time required for setting up the device	2-3 mins	Constraint
How does the umbrella functions ?	Piston-Crank+penumatic telescopic cylinder	Function
Is the device portable?	Yes ,easily shifted	Objective
How does it senses rain	Rain sensors	Function
how does it indicates ?	Alarm	Function
how long does it work ?	2-3 hours	Constraint
How does the umbrella close ?	Mobile Application(blue-tooth)	Function
Time required to build a protoype	About 3 months	Constraint
power consumption	less power consumption	Objective
Use of standard parts?	Yes	Objective

3.2 Objectives:

Sl.No.	Objectives
1	Automatic
2	Less power consumption
3	Portabilty
4	User-Friendly
5	safety
6	less expensive
7	use of standard parts

Objectives Problem definition:

Design an automatic rain sensing unit that will detect rain and be able to protect people from rain. The unit should be designed to be portable and easy to use, it should also have the ability to connect to the internet for additional data and be able to connect to other system for monitoring and control.. The unit should be easily to maintain and have a low cost of ownership.Designed unit shoul have standard parts for creating the unit and user friendly.

3.3 Functions

sl.no	Questions	Answers
1	Opening of Umbrella mechanism	Piston & Crank + Penumatic Telescopic cylinder
2	Sensing of rain	water sensor
3	Closing of umbrella	mobile app (Blue-tooth)
4	Indication of Rain	Alarm (Buzzer)
5	Display of temperature	LED Display

Functions problem defintion:

Design a affordable automatic rain sensing umbrella which senses the rain and provide shelter against it , it should also sense and display temperature , it should cover a decent area ,able to work for sufficient time , user friendly and can be controlled by other means .

3.4 Constraints:-

Sl.No	Constraints
1	Budget should be Rs.3000/-
2	Space required is 2ft2ft2ft
3	Amount of Power Required is 10-20W
4	Time required for setting up device is 2-3 minutes
5	Rain and Temperature Sensors are used
6	Time required to prototype model is 3 months
7	Battery backup available for 2-3 hrs

Constraints problem definition :-

Design an automatic automatic rain sensing umbrella, which can sense rain, display temperature, it should be portable and user friendly. Machine must not exceed the volume of 2 cubic feets , should have at least 2-3 hours of backup available, budget to build should not exceed Rs. 3000 /- and it should work for 3 hours continuously. It should take 2-3 minutes for opening and setting up of the device

Final problem definition:

Design a affordable automatic rain sensing umbrella which senses the rain and provide shelter against it , it should also sense and display temperature , it should cover a decent area ,able to work for sufficient time , user friendly. The unit should be designed portable and easy to use, it should also have the ability to connect to the blue-tooth for additional data and be able to connect to other system for monitoring and control. Device must not exceed the volume of 2 cubic feet , should have at least 2-3 hours of backup available, budget to build prototype should not exceed Rs. 3000 /- and it should work for 3 hours continuously, low cost maintenance is must. It should take 2-3 minutes for opening and setting up of the device .