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Initial Prototype Design
The lower delivering box is the promote one comparing to the initial sketch. And the upper box is used to contain electricity connecting staffs.
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The Prototype Requirement
6. “The box is powered by electricity’‘: it allows the delivery box to run efficiently and conveniently. And the Box also needs to run in a constant electricity power, which, in the testing, should be around 9v.
7.“Stability on the track”: it ensures that the prototype will run smoothly and be able to deliver items securely. It relates to the user need of reliability, which is very important to the users on a flight.