ENGINEERING TEAM PROJECT GROUP 28
PROGRESS REPORT: AUTOMATIC CLOTHES SHADE Prepared by: Project Director: Noor Azima Binti Sharim
9615 CVE
Members: Andrey Walter Muti Juin
10078 EE
Nurul Nadhira Binti Idris
11730 PE
Fairuz Asyika Binti Rosli
10349 CHE
Mohd Fauzi Bin Yean
10044 CHE
Muhammad Syafiq Bin
Mohamad Puad
Prepared for: Assoc. Prof. ABC (Supervisor of Group 28) Approved for Submission: ____________________ (Assoc. Prof. ABC) Date: 9 September 2009
10289 ME
TABLE OF CONTENTS 1. PROJECT DEFINITON ………………………………………………………………………..
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2. POTENTIAL PROBLEM IDENTIFICATION ….………………………………………….
4
3. DESIGN CONCEPT AND JUSTIFICATION • • • •
PRELIMINARY ANALYSIS ………………………………………………………… DETERMINING THE DESIGN FEATURE ……………………………………... DETAILED DESIGN OF AUTOMATIC CLOTHES SHADE …………………. DETAILED DESIGN OF CIRCUIT …………………………………………………. 3. PROJECT PLANNING • • •
TASK LISTING AND DISTRIBUTION ………………………….………………. LOGIC SEQUENCE OF TASK …………………………………………………….. FEASIBILITY OF PLAN ……………………………………………………………..
5‐6 6 7 7
8 9‐11 12
4. HARDWARES/TOOLS & SOFTWARES ………………………………………………….
12‐13
5. COST ANALYSIS ………………………………………………………………………………..
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6. ALTERNATIVE MATERIALS …………………………………………………………………
15
7. PROGRESS AND FINDINGS ………………………………………………………………..
16
8. NEXT PLAN OF ACTION ……………………………………………………………………..
17
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PROJECT DEFINITION In our daily lives, washing clothes is one of the important house chores. Clothes that have been washed need to be directly dried since piling of wet clothes can produce uncomfortable odour and can be unhygienic as well. The clothesline is probably the oldest method of drying clothes. It is also the cheapest and most ecological. Malaysia is located in tropical region and surrounded by South China Sea and Straits of Malacca, thus sudden rainfall is a normal phenomenon. Most people are too busy to look after their clothes at all times and do not realize when their clothes are already wet. This situation is very bothersome especially for busy housewives. Even though this problem seems simple, but everyone would love to have the solution. Thus, our team project aspires to overcome this weakness with our product, branded as Automatic Clothes Shade. Technically, it will provide an automatic shade for the clothes line in order to avoid the clothes getting wet from the rain. Several benefits of using this product are listed below. 1. Time: The users do not have to look after their clothes at all times and can do other works without any worries about rainy weather. 2. Cost: The product’s price is far lower than dryer machine and slightly higher than the existing common clothes shade. 3. Design: This product does not have weather constraint. It can be used whether it is raining or not.
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POTENTIAL PROBLEM IDENTIFICATION The potential problems of Automatic Clothes Shade have been identified in order to prepare further steps to overcome them. The potential problems of the project are caused by constraints that will limit the project in many aspects. These constraints are divided into three major parts:•
Task Constraint This team project consists of all engineering disciplines. Therefore, there are some
difficulties in evenly assigning the tasks that need to be done. Electrical and Mechanical Engineering discipline is needed most in accomplishing this project. The other team members from other engineering disciplines are assigned with tasks which are related to them. Knowledge limitation is also a problem since not all the team members have extensive knowledge and experience in engineering. The project requires knowledge beyond the current level of education of the project team members. Therefore, thorough learning needs to be done before attempting the project. •
Resources Constraint The ETP budget is set at maximum RM 200 for all teams. We went from shop to shop
to get lower price for some of our equipments. Extensive demonstration using expensive equipment is impossible so other alternatives must be identified. •
Time Constraint We have time constraint since we are taking other subjects. We have to cope with
other subjects and the Engineering Team Project (ETP). Assignments and tests for other subjects consume a significant amount of time causing less time for the ETP. Besides that, the components of the system are technically complex causing the team to have difficulties understanding and incorporating the components. Therefore, extensive amount of time is needed to learn and understand the system.
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DESIGN CONCEPT AND JUSTIFICATION •
Preliminary Analysis (Surveying)
For design purpose, we decided that the prototype of Automatic Clothes Shade will be base on the real clothesline. Therefore, a research has been conducted in order to find the popular type of clothes line. It is to ensure that our design can relate to varieties of people. We have done surveys on three populations (housewife, student and working people) about the most common clothes line used. Below are types of most common clothes line:
A) Stand clothesline
B) Glue or wall clothesline
C) Portable clothesline Figure 1: Types of Clothes Line Types of Clothes Line by Percentage %
60
40 Percentage % 20
0 By Percentage %
A
B
C
55
20
25
Types of Clothes Line
Chart1: Survey result on types of clothes line. Based on the result, clothes line which has the similar design and outdoor concept as clothes line A was chosen. This clothes line will function as the base and the Automatic Clothes Shade will be attached to it. The detailed dimensions are as followed; 5
Height = 58cm Width= 26cm Length= 90cm
Figure 2: The chosen clothes line for base of the design. •
Determining the Design Feature (Evaluation)
Our group has come up with two designs for the project and characteristics evaluation was conducted in order to justify the chosen design. First Design (Total=13 marks)
The hook concept is used. (Efficiency in handling=3) •
The rain sensor and temperature sensor will detect rain and trigger the motor which will release the hook attached to the shade.
•
To fold it back to its original position, it needs to be hooked manually.
Portability=4 Aesthetic value=3 Effectiveness in clothes drying=3 Second Design (Total=17 marks)
The turning shaft concept is used (Efficiency in handling=5) •
The rain sensor and temperature sensor will detect rain/no rain and cause the motor to turn the shaft. The moving nut will then move up or down in order to close or open the shade accordingly.
•
Both the closing and opening the shade will be automatic.
Portability=3 Aesthetic value=4 Effectiveness in clothes drying=5 *Range of marks given is 1 to 5. Table 1: List of comparisons for design 1 and 2. The second design is chosen since our priorities are to provide easiness in handling the Automatic Clothes Shade and effectiveness in clothes drying.
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•
Detailed Design of Automatic Clothes Shade Once the second design concept and the base clothes line are chosen, we then draw out
our detailed design. The basic materials used will be steel rod, shaft and polyester sheet.
Figure 3: Side view I.
Figure 4: Side view II.
• Detailed Design of Circuit
Figure 5: Circuit design using PSPICE. 7
PROJECT PLANNING •
Task Listing and Distribution
There are four main departments in this ETP group, which are: 1. Electrical & Electronic The main task is to do some research on the electrical & electronic materials and mechanism of the materials such as motor and sensor that will be used for the prototype. This department needs to ensure the circuit for the sensor is working when the rain is coming and the motor can rotate in clockwise and counter clockwise direction in order to open and close the roof. Besides that, this department also needs to determine the cost effectiveness of the project. 2. Process and Prototype Design These department main concerns are about the design of the layout and flow of the process, resources management and usage of appropriate tools or software to draw the schematic diagram such as Autocad software. The schematic diagram will be the guideline in order to make a complete prototype of our project. 3. Civil Department This department does research on the materials needed in making the frame of roof and to ensure the materials like steel rods and nuts are fixed in the best way so that the roof can stand strong and align with the clothes line. Furthermore, this department also needs to choose the suitable clothes line based on the survey done around UTP and in UTP. 4. Research and Experiment This department is more on observation, research handling and conducting test on project reliability. The chemical part related to this project is the selection of the polyester sheet to enwrap the roof. This department also needs to determine the estimation of height, length and width of the clothesline and roof as well as the suitable amount of electric energy needed by considering HSE aspect in the project.
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•
Logic of Sequence of Task a) Research and Design the Product There are several things that have been done for this project. First of all, a survey about
a various type of clothes line has been done at home, hostel, shops and super market during weekend. Based on that, some basic ideas and information are obtained before proceeding to further researches. Some action and researches that have been done are: •
Take some pictures of the clothesline that commonly used: to survey and estimate the height, length and width of the clothes line which has the possibility to be selected for the prototype and further research will be conducted.
•
Do a research on how the clothes line is commonly placed and its problems. Thus, it can be used as the references and guidelines in order to solve the problem encountered. Possible improvements on product can also be analyzed.
Next step is to select the best mechanism for producing the prototype. After doing some surveys, deeper researches and discussions with some people who have the knowledge about the various types of clothes line regarding their pattern, design and strength. We identified the best solution is by adding the roof on the clothes line in order to avoid the clothes getting wet due to rain. Based on that, several mechanisms have been identified on how to make the roof operate during raining and the designs of the roof have been considered as well so that the outcome product will be more effective. Furthermore, we also conducted a survey about the circuit, electronic materials and power supply to some shops around Pasir Puteh. Based on that, we concluded that one circuit for the sensor is designed to detect the rain and another one circuit is designed for the motor to control the motion of roof. We used the power window motor that connected to the circuit in order to make the treaded turning shaft to rotate clockwise and counter clockwise for our prototype. The materials such as steel rods, nuts and screws which are suit the design of the frame have been found in a shop in Tronoh. Then, we will go through with the fabrication process of the project as sketched in schematic diagram.
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b) Fabrication and Analysis Further researches and analysis need to be done to ensure the product meet the design specification. Below is the list of analyses that will be done: i) Mechanical Type of Analysis
Description
Material selection
To ensure all the materials that have been chosen comprise good properties and safe to be used.
Design selection
To ensure the design that has chosen is stable, strong and balance at all parts which is in front, rear, left and right.
Weighted analysis
To evaluate all the listed designs by ranking the design with weighting factors and safety level to which each design concepts meet the criterion needed. Table 2: Type of Analysis
ii) Electrical The things that need to be done are: 1. Understand how the circuit woks and identify the limitations of the circuit. 2. Do research and experiments on how to change the rotation of the motor. 3. Use and test the usage AC voltage. 4. Ensure switches connection to the motor and make sure that the motor rotation direction changes. iii) Chemical For the chemical part, the research for the selecting the best cover for the roof is still in progress. For the time being, we select the polyester sheets to enwrap the roof. iv) Civil In this department, a detail analysis about all the required materials been accomplished especially for mechanical parts. One of it is to determine the materials properties whether it can be welded or not.
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c) Finalizing Figure 6: Project Flow Process Finalizing the design drawing - Can start building the body and the components of
Find and buy the parts and materials which have been determined during analysis and evaluation process Fabrication of circuit
Fabrication of the roof - Still need to do some improvement in frame design
- Still need to search for suitable, rechargeable and portable power
Test the strength of roof
Test the circuit Combining the circuit and roof
Full test of the prototype - Determine whether the model meets the requirement
Re-evaluate and do the changes if any problems occur.
Completion of the final report for project evaluation
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•
Feasibility of Plan
a) Gantt chart For the time being, the project is running smoothly and following what we have planned in the Gantt chart schedule and everything is within the time frame. All details information will be explained in this progress report. We have started purchasing and building the electrical components of the prototype. We will proceed towards fabrication and project completion. b) Budget Most of the budgets are used to purchase frame materials and the motor. Most of the materials are easy to get at low prices and only a few materials are pricey. For the time being, the sample clothesline that we have decided to use in this project is borrowed from one of UTP’s student. We will decide whether to buy the clothesline using excess fund after making sure that the prototype properly. Thus, the budget for the clothesline can be used for other materials first. The project cost is still within the given budget of RM 200.
HARDWARES / TOOLS & SOFTWARES SOFTWARES •
MICROSOFT WORDS This software used to complete job on documentation.
•
MICROSOFT POWER POINT Power point used in presentation slides
•
MICROSOFT VISIO Use for making Gantt chart.
•
AUTOCAD Perform job for engineering drawing and descriptive geometry for the model design.
•
PSPICE Designing and simulating a circuit in the project that uses electronic devices.
•
MACROMEDIA FLASH This software use in presentation (animation)
•
EAGLE 5.1
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HARDWARES •
Workshop equipment. 1. STEEL ROD 2. ALUMINIUM HOLLOW 3. SHAFT 4. METAL CUTTER 5. MEASURING TAPE 6. SAW 7. WELDING MACHINE 8. TEST PEN 9. METAL SCRAP 10. SOLDERING GUN 11. SOLDER 12. DONUT BOARD 13. VERO BOARD 14. DIGITAL MULTIMETER
•
Clothes line or clothes hanging tools. 1. RAIN COAT
•
Basic circuit materials. 1. POWER WINDOW MOTOR 2. TEMPERATURE SENSOR 3. COMPARATOR 4. 6-V RELAY 5. DONUT BOARD 6. SWITCH 7. RAIN SENSOR
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COST ANALYSIS The materials and components used in our project are being considered in few aspects such as availability, durability as well as cost. We purposely use the components that easily found in the market and assemble it by ourselves. The total cost includes capital and operational cost. a) Capital Cost Consideration:
No
Item(s)
1
Basic Circuit Components
2
-
2 * Motor / Power Window
-
1 * Soldering board
-
2 * relay 5V
-
1 * 5V battery
-
1 * 12V adapter
33.00
Temperature sensor
8.00
Sensor -
3
Frames and Fabrics -
4
Price (RM)
15.00
Steels i)
4 * 90 cm (od = 2cm)
ii)
1 * 90 cm (od = 1cm)
iii)
1 * 50 cm
iv)
4 * 45 cm
v)
4 * 25 cm
-
Turning shaft (1 * 45 cm) with 2 nat
10.00
-
Nylon fabric
4.00
Clothes Line
(provided) RM 70.00
TOTAL Table 3: Cost evaluation sheet.
b) Operational Cost Consideration. -
Cost needed to assemble the gadget (machine, electricity and hand tools). Most of these equipments are provided in laboratory.
-
Transportation and petrol (around RM25).
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ALTERNATIVE MATERIALS No
Materials
Descriptions
1
Motor / Power Window New motor / power window cost We bought second-hand power RM40 each.
Alternative Materials
window which only cost RM 10 each.
2
Frame
Welded steels cost higher than We bought non-welded steels non-welded steels.
and weld them by ourselves at laboratory.
3
Nylon Fabric
Many types of “water-repel” We do research and choose the fabrics with variation of prices.
suitable fabric with reasonable price.
4
Clothes Line
New clothes line cost minimum We use our own clothes line. RM 35. Table 4: Description of alternative materials
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PROGRESS AND FINDINGS 1. Completed Work WEEK
PROGRESS
Week 1 and • First group meeting was held. Leader, assistant leader, secretary, and treasurer week 2 th
of the group were appointed. st
(19 July – 1
• Idea brainstorming was done and 5 from several ideas were pre-selected. All
Aug 2009)
group members did general researches about the ideas. • First official meeting with the group supervisor, AP Ahmad Mustafa was conducted. During the meeting, the idea had been finalized.
Week 4
• Project proposal was finished and submitted.
(9th – 15th Aug • Several schematic sketches of the project were designed and the feasibility of 2009) Week 5
the sketches was discussed. • The group had done a survey on the cost of the materials and equipment needed.
(16th – 22nd • Had a consultation with a technician from Offshore Laboratory, Mr. Idris. The Aug 2009) Week 6
discussion was more about the materials and equipment. • All group members obtained the laboratory safety passport.
(23rd – 29th • Electronic part of the project was done and tested. Aug 2009)
• The project design was finalized. • Some materials like motor and raincoat were bought at Pasir Puteh. Core materials which are steel and aluminum are still in survey. Table 5: Completed work
2. Work in Progress •
The aluminum and steel will be bought as soon as possible so that basic fabrication work can be started.
•
The group will see another technician from Offshore Laboratory to seek for more advice.
•
The laboratory booking is still in progress.
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NEXT PLAN OF ACTION WEEK
PLANS
Week 8
•
(6th – 12th Sept 2009)
Progress report of the project will be submitted, and the group will attend Seminar IV.
•
Materials such as steel and aluminum will be bought, so that fabrication works can be started. Fabrication works include welding work and some modifications to the steel rod.
Week 9 and 10 th
(13
Sept – 3
rd
•
Fabrication works will be continued until it is fully completed.
•
The prototype will be completed and evaluated.
•
Posters will be prepared so that it can be presented and the project
Oct
2009) Week 11 (4th – 10th Oct 2009) Week 12 th
(11
–
th
17
Oct
will be demonstrated.
2009) Week 13 and 14) th
(18
–
31
st
•
Preparation of final report.
•
Final report will be submitted.
Oct
2009) Week 15 (1st – 7th Nov 2009) Table 6: Works in plan
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