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Sun Spots And Mantis A Comparative Study
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Sun Spots And Mantis A Comparative Study

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Transcript

  • 1. SUN SPOTS AND MANTIS OS
  • 2.
    • Sun SPOTs
    • Squawk JAVA VM
    • Features of Sun Spot
    • Mantis OS
    • Architecture
    • Features of Mantis OS
  • 3.
    • Sun S mall P rogrammable O bject T echnology.
    • Small and Wireless device developed at Sun labs.
    • Java platform wireless devices.
    • Programmed purely in Java .
  • 4.
    • Device for deploying Sun SPOTs.
    • Java VM “Squawk”
    • eSPOT-rechargeable Li-Ion battery
    • Programmed using native Java tools.
  • 5.
    • Atmel AT91RM9200 processor.(180 MHz)‏
    • 512KB RAM/4MB ROM
    • Chipcon CC2420 802.15.4 radio
    • 3.7V rechargeable Li Battery
    • power:40-100mA
    • 35x25 mm in size
  • 6.
    • 8-tri colour LED's.
    • 3D accelerometer
    • 5-I/O pins
    • Temperature & Light sensor.
    • 1 A/D converter.
    • 4 high current O/P pins.
  • 7.
    • Open source VM for Java language.
    • Mainly written in Java.
    • Interpreter is written in C.
    • Compact byte code(35-45% of J2ME Program).
    • Green threading module.
  • 8.  
  • 9.
    • Easy to program
    • Powerful and Secure (ECC)‏
    • Low power consumption (40-100mA)‏
    • Only device to have JVM with garbage collector
  • 10.  
  • 11.
    • M ultimod A l system for N e T works of I n-situ wireless S ensors
    • WSN project at the University of Colarado
    • MOS uses a multithreaded kernel with priority-based round robin scheduling
    • Written in standard C Library
    • Ported across multiple hardware platforms
  • 12.  
  • 13.
    • Portable multi-threaded kernel
    • Threads share address space
    • Small memory footprint(<500 bytes of RAM)
    • Energy-efficient OS(<20 mA)‏
    • Supports dynamic reprogramming
  • 14.