NEED STATEMENT

Urea(DAP) dispenser for crops in the field

• The university of Agriculture Sciences in Dharwad is in need of carriable backup urea dispenser for farmers to throw urea in different patterns to fields.

3.1 Question and answers

sl no	QUESTION	ANSWER	OBJECTIVE/CONSTRAINT/FUNCTION
1	What should be the size of the machine?	(2×2×2) ft	CONSTRAINT
2	What should be the capacity?	upto 3kg	CONSTRAINT
3	What should be the budget?	less than ₹5000	CONSTRAINT
4	Mode of mobility?	Portablity	OBJECTIVE
5	Mode of Charging?	Hybrid( Adapter or Solar power )	OBJECTIVE
6	Range of dispensing?	(2×4)ft	CONSTRAINT
7	What should be the weight of the machine?	less than 5kg	CONSTRAINT
8	What about durability?	Low cost maintenance	OBJECTIVE
9	any extra features?	Alert for low level of urea,with good sensors,dust proof,water proof and rust Proof.	FUNCTION
10	What about length of dispenser pipe?	1-1.5 meters	CONSTRAINT
11	Should the machine be automatic or manual?	Semi-automatic	OBJECTIVE
12	how the spreader should be designed?	It shoud spread urea uniformly and efficiently	OBJECTIVE
13	How to protect this machine from rain.?	We use a protective cover to protect it	FUNCTION
14	What should be the quality of machine parts?	Use of standard parts	OBJECTIVE
15	How machine should be used?	Ease of use	OBJECTIVE
16	How should be the seafty?	User friendly	OBJECTIVE
17	How can controlled distribution of urea in farming system be applicable to maximise crop fertilization?	By urea dispensing	FUNCTION

3.2 BASIC SURVEY AND REQUIREMENTS

SL NO	Observation from survey	Requirements
1	Weight of the machine	portable and easy to carry
2	cost	it should be less than Rs.5000
3	Rate of dispensing	It should cover (2*4)ft
4	Materials to be used	lightweight, acid resistant and rustproof
5	Urea storage capacity	Upto 3kg

3.3 IDENTIFYING CLIENT'S OBJECTIVES

SL no	Objectives
1	Portablity
2	Hybrid( adapter or solar power)
3	Low cost maintenance and user friendly
4	Semi automatic
5	It shoud spread urea uniformly and efficiently
6	Use of standard parts
7	Ease of use
8	User friendly

Problem definition version 1.1

Design an urea dispensing machine which works on DC adapter. It should be portable, should have low cost maintenance should be user friendly. It is semi automatic device. The spreader should spread the urea uniformly and efficiently. The quality of machine parts should be standard. The machine should be easy to use. It should be user friendly.

3.4 IDENTIFY CONSTRAINTS

Sl no	Constraints
1	(222)ft should be the size of the machine
2	Capactity to store urea should be upto 3kg
3	budget should be less than Rs.5000
4	range of dispensing should be (2*4)ft
5	weight of the machine should be less than 5kg
6	Length of the dispensing pipe should be 1-1.5m

Problem definition version 1.2

Design an urea dispensing machine which works on DC adapter. It should be portable and should have low cost maintenance. It is semi automatic device. The spreader should spread the urea uniformly and efficiently.(2x2x2)ft should be the size of the machine and it should be less than Rs.5000. The machine should weigh around 5kg and the capacity to store the urea should be 3kg. The range of dispensing should be (2x4)ft with the length of the pipe being 1-1.5m. The quality of machine parts should be standard. The machine should be ease of use. It should be user friendly.

3.5 ESTABLISH FUNCTIONS

Sl no	Functions
1	Alert for low level of urea,with good sensors,dust proof,water proof and rust Proof.
2	We use a protective cover to protect it
3	Urea dispensing to maximize crop growth

Problem definition version 1.3

Design an urea dispensing machine which works on DC adapter. It should be portable and should have low cost maintenance. It is semi automatic device. The spreader should spread the urea uniformly and efficiently. the size of the machine should not exceed (2×2×2) ft. the capacity to store urea should be up to 3 kg and the weight of the machine should we after 5 kg. the range of dispensing of urea should (2×4) ft. in the length of dispenser pipe should be 1 to 1.5 m. effective cost of the machine should be less than 5000 rupees. the extra features included are alertness for low level of urea.It should have good sensors and is dustproof, waterproof and rust proof. Adapting a protective cover to protect it. The quality of machine parts should be standard. The machine should be ease of use. It should be user friendly. By urea dispensing we can control distribution of urea to maximize the crop growth.