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Assignment 1 - CAD
Assignment Description:
Find an interesting problem on thinkcycle.org. Design a solution to the problem and make it in CAD. Problem statement: Many a times, we will have to search for the required book in a library. Often the book will be misplaced in the library. Therefore, the idea is to paste an electronically coded small strip to every book in a library to contain unique information like accession number, etc. All that is required by anyone to locate a book is to have a hand-held device like a torch light that has to be carried through the book rakes of the library. The device should have an electronic chip to send and receive signals. The signal sent out from the hand-held device can be tuned according to the details of the book being searched. On reaching the book, which is most likely to be available in an unexpected location, the device may give a beep sound (or light up) to alert the reader. This will save considerable amount of time and also motivate the readers. http://www.thinkcycle.org/tc-notes/show-note?tc_note_id=35552 My solution: My device is a handheld, pistol-grip bookfinder. The library visitor will look up the ID number of the book they are interested in, and punch it into a standard 10-key keypad. For convenience, the keypad has a "backspace" and a "clear" key along with the 10 standard numerical ones. Above the keypad is an LCD showing the number being entered, and below the keypad is a "FIND" button that kicks the device into action. If the visitor mis-enters the number or the book is not within range, the LCD can display an appropriate error message. Once the library visitor presses the "FIND" button, the device swings into action, literally. The 2 arrows on the device go to work, pointing the way to the lost book.
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