11Team Task 3 Parker

11Team Task 3 Parker - Team 11 Memo To: Rob Silverstein...

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Team 11 Memo To: Rob Silverstein From: Ryan Freeman Devon Leong Darrin Mock Adam Parker Charity Quijano Sneha Ravikumar Joshua Robins Brian Yeh CC: Date: 10/3/2011 Re: Task 3 Design Objectives Tracker - battery charge/ alkaline batteries last > 1 day - weight is < 6 oz. - small enough to fit in your pocket - target price $100 - simple interface (or none at all) Website - easy account login - simple tracker-map interface - target subscription price $10/month Technical Requirements - type of battery - network security (only user can locate tracker) - EDGE vs 3G vs Wi-Fi Design Concept - trackers will be about the size of a pager (similar to picture)
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- one (green) LED to represent battery life (solid if >30% battery left, blinking otherwise) - one (yellow) LED to represent transmission of data (blinking while transmitting) - on/off switch on top - simple account creation - easy account login - list of all user’s tracking devices on left side of the page - clicking on tracker brings up most recently recorded location - simple large map on right (displaying most recent location and previously recorded locations) - ability to show relative distance to customer (through input of another address or a geo- location) Key Elements - LED light
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- Wi-Fi chip - EDGE/3G chip - GPS chip - Battery - Software program - Microprocessor LED light P393-ND Red LED by Panasonic For 10,000 units we can get it at 20 cents per unit. (Reference: digikey.com) <http://search.digikey.com/scripts/DkSearch/dksus.dll? On/off switch 563-1182-ND push button switch by Copal electronics For 10,000 units we can get it at $1.54 per unit. (Reference: digikey.com) <http://search.digikey.com/scripts/DkSearch/dksus.dll? Wi-Fi chip Wi-Fi will only work in proximity to a wireless router that is publicly accessible. Since most wireless networks are private networks that are confined to indoor spaces, Wi-Fi may not be sufficiently robust. 802.11n Wi-Fi single-chips will be roughly US $5-7 per unit. (Reference: asia.ru) <http://www.asia.ru/all/it_news/document19887_.shtml> 3G/Edge chip A 3G chip or an EVDO can access the Internet through a cellular phone network but this will involve a monthly fee with a service provider. According to a breakdown of all the components and pricing of the new Apple iPhone 3G S, the Infineon PMB8878 baseband chip will cost around US $13 or less, not including a monthly service fee. (Reference: isuppli.com) <http://www.isuppli.com/News/Pages/iPhone-3G-S-Carries-178-96-BOM- and-Manufacturing-Cost-iSuppli-Teardown-Reveals.aspx?> GPS chip TI has recently produced GPS chips with the bill of materials being under US $5, although the iPhone’s GPS chip only costs about $2.25. (reference: gpsbusinessnews.com)
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11Team Task 3 Parker - Team 11 Memo To: Rob Silverstein...

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