1 / 18

Collaborative Processing in Sensor Networks Lecture

Explore the Mobile Sensor Platform (MSP) history, design, system facts, sensing units, processing, motor control, software, projects, demos, testing procedures, power consumption, and future work. Get valuable insights on MSP and its functionalities.

virginie-michel
Télécharger la présentation

Collaborative Processing in Sensor Networks Lecture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Collaborative Processing in Sensor Networks Lecture 8 – MSP 101 Mahmut Karakaya, Graduate Assistant Electrical Engineering and Computer Science University of Tennessee, Knoxville http://www.ece.utk.edu/~mkarakay Email: mkarakay@utk.edu Lecture Series at ZheJiang University, Summer 2008

  2. What is MSP? Mobile Sensor Platform • Mobility • Integrated capabilities of sensing • On-board processing capability • Wireless communication • Cost-effective

  3. History of MSP Design • MSP v1.0 - Spring 2004 • ECE491 Design Project (Visionaries) • MSP v2.0 - Fall 2005 • MS thesis by Chris Beall • Adding Ranging Sensor • MSP v2.5 - Spring 2006 • ECE692 Design Project by Austin Albright • Adding a Servo for the range Sensor • MSP v3.0 - Summer 2008 • Standardized all works • Adding a Servo for the camera

  4. History of MSP Design

  5. System Facts • Dimension: 300x400x200 cm • Cost: ~ $500 each • Battery Life: ~ 3 hours • 1.5 GHz processor • 1 GB of RAM • 30 GB Harddisk • Operating system: Linux

  6. Sensing Units • MSP is equipped with two kinds of sensors • Imaging sensor • Logitech Pro 5000 • Range sensor • Ultrasonic rangefinder SRF05

  7. Processing • Mini-ITX (7x7in) form factor motherboard - VIA CN700 • 1.5GHz processor • Room for one memory module • Integrated video, audio, ethernet • PCI expansion slot (used for wireless) • Needs an external Power Supply

  8. MotorControl • The parallel port is used to send a PWM signal to the H-Bridge IC which directly drives two motors

  9. Range Sensor & Servo Control • SRF05 Ultrasonic Ranger • The parallel port is used. • Input: Power & Trigger signal • Output: Echo signal • Range: 3cm - 4m • HITEC HS-311 Servo • Turns: 180 degree • Servo Controller Circuit • Digital Potentiometer • 556 dual timer IC

  10. Software • Operating System: Linux • Ubuntu 7.04  Ubuntu 8.04 • Wireless Card Driver • To be supported by Linux, or • use Ndiswrapper • Remote Access protocol: SSH Secure Shell • Log into a remote machine and execute commands • File transfer • Camera • To be supported by Linux, • Use Logitech, DO NOT use Microsoft

  11. Projects & Demos • Component testing • Motortest • Range Sensor Test • Self-localization demo • Using ARTool Kit • Parallel dancing demo • Class project demo from ECE453, Fall 2005 • Target recognition demo • Class final project demo from ECE692, Spring 2004 • Self-deployment demo - Distributed vs. Centralized • Chris Beall's MS defense demo, Summer 2006

  12. Component Testing • Motor Test • Range Sensor Test

  13. Self-localization demo • Using ARTool Kit

  14. Parallel dancing • Class project demo from ECE453, Fall 2005

  15. Target recognition • Class final project demo from ECE692, Spring 2004

  16. Self-deployment • Centralized vs. Distributed • Chris Beall's MS defense demo

  17. Power Consumption of MSP • Power OFF (Sleep Mode) • 0.14-0.15 A (1.68-1.8 W) • Power ON (Idle Mode) • 1.82 A (21.84 W) • Data Send/Receive • 1.92 A (23.04 W) • Motors • Both: 2.22 A (26.64 W) • Left: 2.07 A (24.84 W) • Right: 2.01 A (24.12 W)

  18. Questions & Future Work • DC motors are not identical so feedback control is needed. • Can step motor be used? • Fix the problem in servo control circuit. • Can smaller battery be used? • Is MSP too big? Why not make it smaller? • More info: http://panda.ece.utk.edu/wiki/MSP

More Related