• Need statement

In some companies the employees to be in formal dress code. So they have to be in tidy formals and well cleaned shoes. So they find difficulty in polishing thier own shoes. So they called us for to design a automatic shoe polishing machine which polishes their shoes quickly and get enough time to do their own work. So we are preparing our automatic shoe polishing machine which can be used by them and could be well treated.

3.1 Question and answer

                                                       Table 1: Question and answers

Sl.No	Questions	Answer	Objective/Function/Constraint
1	Should we fix same brushes for all colours for polishing?	No, we have to maintain the original look	Objective
2	Should we have to fix horsehair brush?	As it is long so depends on the shoes and polishing process	Objective
3	Should we need to fix drier to make wet polish dry	Yes, for good appearance	Objective
4	Do you need an extra space to keep new polish cream boxes?	Yes	Objective
5	How many brushes are needed to be fixed in machine?	Maximum 3, depends upon space	Constraint
6	Within how many seconds polishing process should complete for one pair?	Within 120 seconds	Constraint
7	What should be the holding capacity of polish cream or liquid?	Maximum 200ml	Constraint
8	Do we need to rotate shoes manually or automatically?	Semi automatic	Function
9	Should it indicate after completion of polishing process?	Yes	Objective
10	What must be the weight of the machine?	Less than 2.5 kg	Constraint

3.2 Basic survey and requirements

                                                   Table 2: Observation from the literature survey

Sl.No	Observation from surveys	Requirements
1	No of polishes to be done	Machine should polish a pair of shoes within 2 minutes
2	Price	Machine should be prepared with minimum budget
3	Performence	Machine should work properly for about 4 to 5 polishes without any manual corrections
4	Built in materials	Machine should not feel hard and are of more weight
5	Handling and size	Can be portable and can be fixed within 4ftx4ftx4ft

3.3 Identifying Client's Objectives

                                                 Table 3: Objectives identified

Sl.No	Objectives
1	Machine should work at good performance
2	Machine must be portable
3	Machine must be dust free and eco friendly
4	Machine should be attractive to spectators

Problem definition version 1.1

Design a low cost, unisex shoe polishing machine. The machine should be kids safe and light weight. The machine will be used by a single user at a time and I will not be more than 2ft x 2ft x 2ft of size.

3.4 Identifying constraints

sl no	Constraints
01	Machine should complete the process within 120secs
02	Machine should consist of 3 brushes
03	Machine Weight should be less than 2.5kg
04	Holding capacity of polish cream or liquid should be 200ml

Problem definition version 1.2

Design a low cost, unisex shoe polishing machine. The machine should be kids safe and light weight. The machine will be used by a single user at a time and I will not be more than 2ft x 2ft x 2ft of size. The machine should work on leather shoes and with black color polish. The polish storage capacity needed in the machine is of 1000 ml and dust tray size of 500cc.

3.5 Identifying functions

Sl no	Functions
01	Machine is semi automatic

Problem definition version 1.3

Design a low cost, unisex shoe polishing machine. The machine should be kids safe and light weight. The machine will be used by a single user at a time and it will not be more than 2ft x 2ft x 2ft of size. The machine should work on leather shoes and as well as formal shoes so as to polish. The polish is added to the brushes and the brushes will rotate with the help of dc motor and the mechanism used is gear mechanism. The bot is electric driven and be used of two channel relay connected with two DC motors and Arduino. The minimum budget to build complete bot will be within Rs.2000. It should run by a code as we executed in the Arduino. The bot is able to clean the shoes before polishing. The bot will have varying direction controls of dc motor. There is a presence of IR sensor, as it sense the shoes when it is placed in the place where it as to be. After the shoe being placed, the IR sensor is activated and then DC motor starts rotating in specific direction as specified. Then the brushes are rotated with the help of gear mechanism and starts the performance as we expected and it is able to polish the shoes and complete its process.