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Cell Phone with Sensor. ICS 280 1/10/2005 Kyoungwoo Lee. Contents. Cellular Phone Architecture BREW Power Consumption Cellular Phone with Sensors Sensor Roles of Cellular Phone. Mobile Handset. Cellular Phone => Convergent Mobile Device. Cellular Phone. Key Features of Motorola V710
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Cell Phone with Sensor ICS 280 1/10/2005 Kyoungwoo Lee
Contents • Cellular Phone • Architecture • BREW • Power Consumption • Cellular Phone with Sensors • Sensor • Roles of Cellular Phone
Mobile Handset Cellular Phone => Convergent Mobile Device
Cellular Phone • Key Features of Motorola V710 • MSM6100 chipset with ARM926EJ-S up to 150 MHz • 1.2 Megapixel Camera w/ Zoom • MP4 Video Capture & Playback • Integrated MP3 Player • Bluetooth • BREW 2.1 • MMS (Multimedia Messaging Service) • TransFlash Memory Expansion Slot up to 128 MB
BREW • Binary Runtime Environment for Wireless • End-to-end solution for : • Wireless application development • Device configuration • Application distribution • Billing & Payment • BREW includes : • BREW SDK for application developers • BREW client software & porting tools for device manufacturers • BDS(BREW Distribution System) for operator
Power Consumption • Power Measurement • Power Consumption • 3 hours talking and 165 hours standby with 750 mAh battery • Application level power measurement • Idle • Video Application • Talking • Define each status
Experimental Results • 1: IDLE_Nothing • 2: IDLE_Light • 3: IDLE_Browsing • 4: ACT_VideoCapture • 5: ACT_VideoPlay • 6: ACT_Talk • Output Video File • 170~180 KB • MP4 • 15 Seconds • ~96kbps Energy Overhead on Video Application(50~60%) and Backlight(81%)
Contents • Cellular Phone • Architecture • BREW • Power Consumption • Cellular Phone with Sensors • Sensor • Roles of Cellular Phone
Sensor • What it senses • Home Monitoring • Health Monitoring • Environment Monitoring • Habitat Monitoring • Earthquake Monitoring • Battlefield Monitoring Sensors exist everywhere Monitoring of physical world & its phenomena • Additional Features • Data Processing • Communication • within Low-Power Constraints
Cellular Phone • Main Function • Mobile Phone to connect people • Additional Features • Message Service • Camera and Camcorder • Multimedia Playback • with powerful computing and infrastructure-based network • Battery-operated • Roles for Sensors • A bunch of sensor nodes • A central node or a proxy server for sensor network • A terminal to human for sensing data
A. Cell Phone as a Sensor • To collect, to process, and to distribute data around people • Home Care • scan environmental data and forward it to care center • e.g.) check the gas leakage or poisonous material • Health Care • sense user’s health status and update/keep it. • e.g.) keep the heart rate or blood sugar rate for diabetics • Emergency Care • catch the emergent situation around people and scan/send data • e.g.) send rescue calls and captured data like picture
A-2. Health Care • People want to check their health simply • LG KP8400 : Diabetics Phone • Blood Sugar Testing Phone • place a strip of testing paper located near battery • place a drop of blood on the end of the strip • get a reading from the phone • upload to an online database for later retrieval Mobile Handset provides tools to check our health status and to keep or accumulate it
A-2. Health Care (cont’) • What else for heath care? • Very basic but important health care services • NONIN Onyx 9500 : Digital Finger Pulse Oximeter • Read data over fingertip • Real-time information on Heart-Rate and Blood Oxygen Saturation Level Simple devices for health care can be converged into mobile phones to check the health by user
A-3. Emergency Care • Cellular phone carries rescue button call for safe • Curitel PG-L5000 – SOS Phone • Emergency Button Call • Call at three saved numbers • Take two pictures and send them • Inform others of the position using GPS Mobile Handset senses emergent data
Sensor Network Cellular Network B. Cell Phone as a Proxy • To use computing power and communication ability of cell phones for sensor network like a Proxy or a central node • Offloading technology • CPU:1s MHz in Sensor VS 100s MHz in Cell Phone • e.g.) sensor captures images and cell phone encodes/encrypts them and transmits them.
C. Cell Phone as a Terminal • A terminal to human for sensing data • User can get information from sensor network immediately after requesting • An interface to human for information • User can collect preferred data through cellular phone
C–1. Security • Cellular phone scans user’s fingerprint • LG LP-3800 with Fingerprint Scanner • AuthenTech sensor for fingerprint recognition • Locked for unwanted user to use the phone Mobile Handset recognizes unique data for personal security
C-2. Code Interface 1 2 • Colorzip.com : "ColorCode" - an interface connecting you to online contents • Media provides ColorCode • User camera on phone recognizes it • Server provides contents to client • User enjoys the contents Mobile Handset provides an interface like camera to read and process data 4 3
Wrap-up • Cellular Network might be a huge-covering and very potential Sensor Network. • More Friendly and Closer to Human Being • Mobile Handset has an interface for sensing data and functionalities of computing and communication
References • [BREW2004Conf] http://brew.qualcomm.com/brew/brew_2004/ • [BREW] http://brew.qualcomm.com/brew/en/ • [Healthpia] www.healthpia.com • [Diabetic] http://www.mobileburn.com/news.jsp?Id=896&source=SIDEBAR • [SOS] http://www.curitel.com/html/product/lineup/feature.asp?serial_no=50 • [FingerPrint] http://www.3g.co.uk/PR/Sept2004/8318.htm • [Nonin] http://www.nonin.com/products/9500.asp • [ColorCode] http://www.colorzip.com • [Howard] Andrew Howard, Maja J Matari´c, and Gaurav S Sukhatme, “Mobile Sensor Network Deployment using Potential Fields: A Distributed, Scalable Solution to the Area Coverage Problem” the 6th International Symposium on Distributed Autonomous Robotics Systems (DARS02) • [AdHoc] http://www.acticom.de/fileadmin/data/publications/WWRF9_White_Slides.pdf • [Joseph] Anthony Joseph, B.R. Badrinath, and Randy Katz, "A Case for Services over Cascaded Networks", First ACM/IEEE International Conference on Wireless and Mobile Multimedia (WoWMoM'98), October 30, 1998. • [Rutgers] http://www.research.rutgers.edu/~mini/sensornetworks.html • [CENS] http://www.cens.ucla.edu • [Crossbow] http://www.xbow.com/