I'm going to design an artefact that will alert me whenever my brother enters my room without permission. I will have it flashing and beeping. My mum and dad will know that the noise is my brother entering into my room and they can also worn him off.

Problem 1

When I went into town with my mates recently, I noticed that the majority of the shop had plain boring, static displays. Any shop that did have a moving display such as the gadget shop definitely drew more attention.

I spoke to one shop owner about window displays and he told me that while the moving displays are more attractive and noticeable they are extremely expensive, therefore many shop owners can’t afford them.

Perhaps those shops that have had to close down due to lack of customers would have had more interest shown had they use a more effective window display.

Problem 2

My brother and I are fortunate enough to have are own rooms but unfortunately my younger brother doesn’t respect my privacy and often enters my room without permission. He has borrowed my CD’s and on occasions they have been returned damaged. My parents will not let me fit a lock as it is a safety hazard in case of a fire. Something is needed to alert me or deter him whenever he enters my room.

Problem 3

All over United Kingdom the number of car thefts is going up. Our local area is no different and over recent months there have been a number of thefts reported in the area in which I live.

Most cars seem to be taken from people’s driveways during the night. Cars are expensive to buy and it is very inconvenient if they were stolen therefore it would be sensible to have an alarm fitted. Many people choose not to buy an alarm, as they are expensive.

Chosen Problem

My brother and I are ...

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Problem 3

All over United Kingdom the number of car thefts is going up. Our local area is no different and over recent months there have been a number of thefts reported in the area in which I live.

Chosen Problem

My brother and I are fortunate enough to have are own rooms but unfortunately my younger brother doesn’t respect my privacy and often enters my room without permission. He has borrowed my CD’s and computer games and on occasions they have been returned damaged. My parents will not let me fit a lock as it is a safety hazard in case of a fire. Something is needed to alert me or deter him whenever he enters my room.

Problem Analysis

My brother of often enters my room without permission. My parents will not let me fit a lock as it is a safety hazard in case of a fire. These are the reason for wanting a lock on my door:

Enters my room without permission
Borrows CDs and computer games
Doesn’t return them
Sometimes damages and loses them
Messes up my room

Design Brief

I’m going to design an artefact that will alert me whenever my brother enters my room without permission. I will have it flashing and beeping. My mum and dad will know that the noise is my brother entering into my room and they can also worn him off. I hope this will work and he will not try to enter my room again.

Specification

Primary Function- To deter my brother from entering my bedroom.

Secondary Function- This device has to be easily seen, light and compact.

Safety- This device must be safely secured above my bedroom door.

Sharp Corners- I will have no sharp corners therefore it will not harm the user in anyway.

Stability- This must be an extremely stable device, as it will be attached above my bedroom door.

Fire Hazards- The device will be made from MDF and finished with a fine resistant paint. Energy source will be from a 9volt battery therefore creating no fire hazard.

Electrical Safety- This device will operate of a 9volt battery and therefore presents no electrical hazards.

Ease Of Use- This device will be easy to use and install so that anyone can operate it.

Storage- Storage is not applicable to this device as it will be permanently secured above my bedroom door.

Maintenance- Other than replacing the battery the maintenance will be very limited. Occasional cleaning will be required.

Materials- I will be using Medium Density Fibre (MDF), High Impact Polystyrene and the necessary electronic components and circuit board

Cost- The budget of this project is £10, as this would make it affordable to most of the public.

Weight- The weight factor is important. My artefact will weigh no more than 1.5kg to ensure it is easily mounted and safely secured to the doorframe.

Appearance- The appearance (form) is extremely important, as it will always be in view.

Size- It must not be to big as it would take up too much space above my bedroom door so my artefact will measure 270mm (length) by 180mm (width) by 70mm (depth).

Environment- It will be environmentally friendly as it will be made mostly out of recycled materials and will operate from a 9volt battery.

Chosen Material

I have decided to manufacture my artefact using a combination of Medium Density Fibre (MDF), High Impact Polystyrene and the necessary electronic components and circuit board. The reason I have chosen these materials is because they ate relatively inexpensive and readily available in the school workshop.