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Concepts:

Envision 5-50 years out in the future...


Choose one ordinary activity:

Go to school...Carry the school bag...The schoolbags seem too heavy! 


Consider everyday contexts:

Parents worry that the bag is too heavy to affect the child's health & check the contents of the bag


focus on a plausible use:

connecting Bluetooth to send the information to phone app


Design for fun in-doing, unpredictable interactions, use metaphors:

If bag too heavy the bag will stick on the ground. Don't let you take it away.


Communicate feedback, attention and status...

If bag too heavy:

straining of the muscles, direct injury to the spine, and overall fatigue

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Weight of the school bag:

not good for children to carrying anything that is more than 20 percent of their body weight.

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Two straps, wide and padded:

Comfortable to avoid shoulder imbalance

The phones app:

The 3D scanner scans what is brought, what is necessary to bring what is not needed.

 

Good to organize the bag.

 

Parents to check the package easier, whether there are items that should not be there

Powerful sucker:  

If the bag's weight more than 20 percent of their body weight it will sucker on the ground (Use APP to record child weight then it will know the max weight it could be).

Green light:  

All good

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Yellow light:  

Something forgets​

Detected drug or food spoilage in the backpack 

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Red light:  

too heavy  

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Parents can check the status of your bag through the App to understand your status.

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For example: Have you eaten lunch?/Something that should not be put in the bag (such as drugs.

Diagram of the interaction:
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