类别 全部 - electronics - materials - safety - plastics

作者:Joe Nicholls 10 年以前

435

Task Analysis - Olympic Theme

The text outlines various considerations and methodologies for crafting electronic products, focusing on materials, safety, and customer requirements. Different materials like wood and plastics are evaluated for their suitability, with specific attention to their properties, pros, and cons.

Task Analysis - Olympic Theme

Task Analysis

Efficiency
Measurements (Also linked with 'Environment')

Need to be precise to stop wastage

LED light used to symbolise current flowing through curcuit if switch is on or off. This is used to stop battery wastage, as battery replacement is costly.
Don't waste wire with too much. Measure correctly. Also with soldering - don't use too much tin. This will waste energy (power outlet) & Materials
Components
Switch
LED light for on/off
Jack Wire
PCB (Printed Circuit Board)
Screws (Need Drill (Need power outlet)) (To secure PCB to wood)
Soldering (With Components & PCB)

Materials

Tools
Possible Dangers

Electric Drills

Saw

Solution = Care

Other
Vinyl (Need Vinyl Cutter)

Used to print words, images, symbols, e.c.t onto most materials.

Metals

Wire mesh for speaker cover

Thermoplastics

Acrylics

Used for protection against damage to speaker

Negative

Extremely Brittle

Easy To mold

Colour variation - wide

Electronics (see electronics section)
Softwood

Pine

Uses electric and normal saw for cutting & electric drill for drilling

Negatives

Dents and Scratches Easily

Hard To shape

Positives

Easy To customize

Strong join when glueing

Easy To work With

Drilling

Cheap

Environment

Volume limit 75db

Noise pollution unwanted

Wider World
Efficiency vital

Less waste = less demand for materials = less factory fumes or more trees

LED light

Symbolises power, good for environment - battery doesn't waste and less batterys need to be produced

Rechargable batterys - reduces cost also
Safe

No debris

Clean

Customer

Can be gift or product
Requirements
MONEY for purchase
needs an output on their phone/ iPod
Citizen
Portable optional - can be non portable
Athlete
Needs to be light and portable
Any age

Safety

Product
No easy access to electronics
No open wires
No sharp edges
Workshop
Danger hazards

Debris across floor

Awareness

Machinery

Proper conduct around machines

Caution

Tight seal around PCB and battery for water resistant guarantee
Need To be careful with tools that could cause danger (Already Linked)

Joining Methods

Mesh
Glue
Vinyls
Subtopic
Has it's own self adhesive
Plastics
Acrlic

Transparent or Translucent

Glue or electric drill + nails

Opaque

Glue or electric drill + nails

Electronics
Battery
PCB

Electric Drill + Screws

Speaker

Thin layer of glue needed

Woods
Finger joints

Need accuracy & steady hand

Electric Drill & screws

Energy efficiency needed

Air drying wood adhesive

Theme

Sports
Olymics

Various: Cyclling, Wrestling, Swimming, Diving, e.c.t

Olympic London 2012 Logo

Vinyl printing or paint on wood

Olympic Rings