Next Generation Wireless Sensing Applications, Moving Forward

Transcription

1 October, 2009 Next Generation Wireless Sensing Applications, Moving Forward Vincent Ko Freescale Technical Sales Manager of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

2 Motion Sensing at the Forefront Slick UI Reduced camera-shake 3D Motion Point-to-control Freefall disk protection In-device Sensors Body Area Sensor Network Sensor Enabled Sports Equipment low energy SMART SENSOR Mp3 EEG EKG BP GPS Camera SpO2 PDA/phone Gateway Wireless Sensor Node Motion Sensor INNOVATION of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

3 Wireless Sensing Application Domains Sports Training Fitness Wireless Sensor Node Healthcare Immersive Gaming Industrial (personal activity monitoring: process and safety) of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

4 Sensors Provide.Context Awareness Personal (Body) Motion, reaction Posture, gait, cadence Biometrics Emotion Position Motion, velocity, trajectory Impact, power Entertainment Equipment and objects Ambient (Surrounding environment) Location, Altitude Temperature, humidity Light and Sound Knowledge about the body s movement and bio-status Our interaction with tools, equipment and objects Knowledge about, and interaction with the surrounding environment of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

5 Body Sensor Network Accessories Wireless sensing Some Use Cases Intelligent Objects, Tags Immersive gaming Real time animation Motion and fall detection Medical rehabilitation Industrial Sports training Fitness monitoring Health Standard wireless interface to multiple accessories low energy Object Tagging I ve dropped it! I left it behind! Where is it? Everyday objects with intelligence MEMS motion tracking Touch sensor of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

6 System Implementation: Truly Mobile Interaction/Context Personal Gateway Internet Services Motion Reaction Emotion Posture Biometrics Personal Virtual Fitness Coach Fitness Tracker Trajectory Impact Velocity Power Feedback Entertainment Equipment + objects low energy WLAN Cellular data Technique Coaching Weight-loss Manager Location Altitude Temperature Humidity Light Sound Ambient Group Statistics Virtual Sports of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

7 User Expectations Drive the Technical Challenges Mass appeal Ease of Use Experience Look & Feel Low cost Intuitive, Immediate, Low maintenance (battery) Immersive, Fast response, Accurate Small, Flexible, Non-intrusive, Cool Cost Size Performance Battery Life Processing Load Data quantity Response Time Functional Complexity Smart Technology Energy Conservation Techniques Smart Sensor Node Smart Sensor Fusion Software of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

8 MEMS Technology Evolution Inertial MEMS Evolution More Functionality - Smaller Size Upper Fixed Polysilicon Plate XYZ axis Center Moveable Polysilicon Plate Bottom Subtrate Polysilicon Plate XZ axis XY axis Sense Gap Moving Finger spring Anchor Z axis proof mass X axis Fixed Fixed Finger Finger Anchor + Sense -Sense 1 Smart Technology of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

9 Integration and Scale Integration Smaller Size, Greater Functionality, Lower Power Scale Drives Down Cost Control ASIC MEMS Sensing Cell 3,000 2,500 2,000 1,500 1, MEMS Sensors in consumer products and mobile phones (millions) Pressure P- 3-accelero 6 DOF 3-gyroscope Inertial Signal Conditioning Conditioning MCU MCU w/ Memory 3 DOF J & PicoRadio Software 1 Smart Technology Package Substrate of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

10 Energy Conservation Techniques Component and System Design Techniques Energy Harvesting Consider at component level and system level Sensor component: Optimized circuit design Low power modes Auto transition in/out of low power modes Adaptive Sampling Rate microwatts 10 1 Continuous Power / cm 3 vs. Life Several Energy Sources Lithium Alkaline Zinc air Lithium rechargeable NiMH Solar Kinetic System design: System-level wakeup/sleep mechanisms Interrupt design Distributed processing Duty cycling Years 20μW 20μW 40μW 20μW 2nJ/b Sensor CE-ADC Processor PicoRadio <10kb/s DSP & Storage Security RF 2 Energy Conservation Techniques MAC Power Manager Energy Sensor Kinetic of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

11 Example: Accelerometer with Built-In Sleep Control and Gesture Detection of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

12 Smart Sensor Node Smart Sensor Network Smart Sensor Node Local processing of sensor data streams Sensor MCU + memory RF Distributed processing more energy efficient Sensor Reduces comms traffic Improves response time Simplifies system integration Sensor 3 Smart Sensor Node 4 Smart Sensor Fusion Software Wireless Smart Sensor node: One or more sensors Signal conditioning, ADC MCU + memory Pico-radio in the same package of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

13 Gaming - The Road to Wireless Sensing Remotes Adding motion detection and control Built-in modem Internet support for online gaming Increased Memory Storage Optical discs storage HD DVD, Internet support for online gaming Nintendo Wii released: North America November 19, 2006 Japan December 2, 2006 Australia December 7, 2006 Europe December 8, 2006 Programmable ROM cartridge 1 st Home Video Game Console Magnavox Odyssey released Fall 1972 Fairchild Channel F released Aug 1976 Increased Processing Power 64-bit system Atari Jaguar released Select US cities Nov 1993 Entire NA early CD-based 32-bit system Sega Saturn released November 22, 1994 Japan May 11, 1995 North America July 8, 1995 in Europe Sony's PlayStation released Japan Dec 3, DO Interactive Multiplayer North America Sept 9, 1995 Atari 2600 produced by Panasonic in 1993 released Oct 1977 Sega Dreamcast released in late bit system Nintendo 64 released June 23, 1996 in JP, September 29, 1996 in NA, March 1, 1997 in EU December 10, 1997 in Brazil minidvd discs Sony's PlayStation 2 released North America October 26, 2000 Nintendo GameCube released JP September 14, 2001 NA November 18, 2001 EU May 3, 2002 AUS May 17, 2002 minidvd discs Xbox released November 15, 2001 NA February 22, 2002 JN, March 14, 2002 in AU and EU Microsoft Xbox 360 released November 22, Increased Graphics Capability PlayStation3 released: Japan November 11, 2006 North America November 17, 2006 Europe March 23, future of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

14 Body Area Smart Sensor Network z x y ω(x,y,z) a(x,y,z) Gaming Controller Coaching Service of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

15 z x y ω(x,y,z) a(x,y,z) Wireless Sensor Network Topology 3D Accelero 3D Gyro MCU + memory RF Right arm 6D smart sensor node 6D smart sensor node L-arm Cluster node R-arm Cluster node Left arm Head R-leg L-leg Cluster Master Torso of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

16 Software View of the Wireless Sensing Network Biomechanical Models Software ω(x,y,z) a(x,y,z) Sensor Fusion Algorithms Motion Vectors Motion Algorithms Motion Algorithms Abstracted motion data Right arm 6D smart sensor node 6D smart sensor node L-arm Cluster node R-arm Cluster node Left arm R-leg L-leg Head Cluster Master Torso Hardware of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

17 Sensors are transforming the way we interact with our electronic devices Conclusions Sensors will provide mobile applications and internet services with context awareness Low-energy wireless connectivity is enabling deployment of embedded sensors in clothing, sports and medical equipment and even everyday objects Cost and technical issues remain, driven by user experience and expectation, but are being addressed by Advances in MEMS technology, integration and packaging Smart sensor integration and distributed processing Rigorous design for energy conservation Energy harvesting Scale of sensor deployment in consumer products Context awareness using wireless sensors provides huge scope for product innovation of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

18 Freescale achieved 1 billion sensor units shipped milestone of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. Freescale Semiconductor, Inc

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