lc technology ol sample design folder. assessment design folder: 40% artefact: 60% project 50% exam...
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LC Technology
OL Sample Design Folder
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Assessment
Design Folder: 40%
Artefact: 60%
Project 50% Exam Paper 50%
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Sample Design Folder
1. Analysis, research and investigation
2. Overall management of project
3. Design ideas & selection of optimum solution
4. Sketches & drawings for manufacture
5. Environmental impact
6. Materials and production planning
7. Product realisation
8. Evaluation and critical reflection
9. Presentation and ICT
NCCA advice document to DES
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• Choose an area for research.
• Research existing solutions.
• Statement of candidate’s brief and specifications.
Analysis, Research and Investigation
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I will research the following topics:
• Personal Alarms
• Burglar Alarms
Analysis, Research and Investigation
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Analysis, Research and Investigation
Research existing solutions
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PersonalSafety
Children Elderly
Handicapped
Single People
Analysis, Research and Investigation
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HearingDisabilit
y
Elderly
Wheelchair Bound
Handicapped
Analysis, Research and Investigation
Visually Impaired
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Associated Problems for Hearing Impaired:
• awareness of caller - door bell / knocking! • telephone ringing• television / radio• cooker alarm• smoke alarm• intruder• dog barking
Analysis, Research and Investigation
All sound based
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Alarm integrated into TV Remote Control
Analysis, Research and Investigation
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My Design Brief
Design and manufacture a device which will
signal to a hearing impaired person that
someone is at the door. An output light will
indicate when someone is at the door. The
device will also include an alarm to indicate
that an intruder has entered the house.
Analysis, Research and Investigation
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My Specifications
Analysis, Research and Investigation
1. The device should be operated by a normal door-bell push button
2. When the button is pressed the LED will flash until the device is reset
3. It should be easy to change the battery
4. The product / device should also hold a TV remote control
5. I should be able to make the project in the Technology room
6. The electronic parts should be visible and accessible to the examiner
7. The product should be strong and withstand sudden shocks
8. The product should be environmentally friendly
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Overall Management of the Project
• Analysis of available resources
• Time and budget constraints
• Proposed timeframe/Gantt chart etc.
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Overall Management of the Project
Gantt Chart
Class Periods: 5 5 5 5 5 5 5 5 5 5 5
Analysis, research & investigation
Overall management of project
Design ideas & selection of optimum solution
Sketches & drawings for manufacture
Environmental impact
Materials and production planning
Product realisation
Evaluation & critical reflection
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Design Ideas & Selection of Optimum Solution
•Three design ideas
•Annotated sketches
•Select one of the three ideas
•Justify selection
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Design Ideas & Selection of Optimum Solution
Design Idea 1
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Design Ideas & Selection of Optimum Solution
Design Idea 2
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Design Ideas & Selection of Optimum Solution
Design Idea 3
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Optimum SolutionI have decided to select idea 1 as the design I will make. I will make the last version where there is a housing to contain the circuit as shown below in the sketch.
Design Ideas & Selection of Optimum Solution
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I chose this idea because:• It does not have too many parts • All the parts are quite big so they will be easy to make• Acrylic is easy to shape and bend• A light will flash if an intruder enters the house• Another light will flash to show someone is at the door• It contains an electronic system• It will hold a remote control
Design Ideas & Selection of Optimum Solution
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Circuits
• Outline how circuit works
• Pros
• Cons
Design Ideas & Selection of Optimum Solution
Circuit 1
Circuit 2 Circuit 3
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Design Ideas & Selection of Optimum Solution
Optimum Solution
My circuit design will use a combination of circuit 2 and circuit 3.
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Design Ideas & Selection of Optimum Solution
I chose this circuit because:•It will show when someone is at the door & when the door is open.•All the components are in the technology room.•I can use the CNC router to make the PCB board so soldering this circuit will be easier than using strip-board.•I have used push to make and push to break switches before so I am familiar with how they operate.
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Sketches & Drawings for Manufacture
CAD Drawings
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Sketches & Drawings for Manufacture
Drawing Instruments
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Environmental Impact
• Impact of materials and production processes
• Product use
• Suitability for re-cycling.
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Materials & Production Planning
Components Quantity
LEDs 2
10k resistor 1
Push to make switch 2
Push to break switch 1
Battery 1
Thyristor 1
On/Off switch 1
Part Material Measurements Classes
Housing base Acrylic 110 x 80 x 3 5
Housing top Acrylic 110 x 80 x 3 5
Housing Clear acrylic 270 x 25 x 3 5
Swivel bracket Acrylic 1130 x 13 x 3 3
PCB board Copper clad board
4
Soldering circuit
5
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Materials & Production Planning
Work Breakdown Structure Diagram
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Production Realisation
• Sequence of manufacture
• Photographic evidence
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Production Realisation
• Sequence of manufacture
• Photographic evidence
P.C.B. Layout
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Evaluation & Critical Reflection
• Testing of final artefact.
• Evaluation against brief and specifications.
• Comparison of planned schedules and actual schedules.
• Suggested modifications with justification.