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Cricket software based on Tiny OS Vinay Kumar Singh Dongseo University Outline Introduction. Beacon format. Cricket configuration. Beacon Configuration. Ultrasound control. CC1000 Radio Control. Conclusion References Introduction

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cricket software based on tiny os

Cricket software based on Tiny OS

Vinay Kumar Singh

Dongseo University

outline
Outline
  • Introduction.
  • Beacon format.
  • Cricket configuration.
  • Beacon Configuration.
  • Ultrasound control.
  • CC1000 Radio Control.
  • Conclusion
  • References
introduction
Introduction
  • In cricket software I studied about the radio transmission occurred during the distance estimation faze.
  • The cricket mote consist of CC1000(chipcorn) radio which transmits the RF signals at frequency of 300 - 1000 MHz MHz.
  • I studied the ultrasound application file how its working.
  • I also studied the BeaconMange.nc.
  • One thing I will explain how can we configure the coordinate of the beacons.
beacon rf format
Beacon RF Format

Cricket Beacon Format

slide5

SerialID

RandomLFSR

SerialM

Random

Serial

HardwareID

StdControl

HPLUARTC

AgeTimer

TimerC

Comm

StdControl

HPLUART

BeacMangeM

Main

StdControl

CricketM

BeaconManage

Radio

BeaconsControl

StdControl

RadioControl

Time

OnboardTemp

UltrasoundControl

SimpleTime

UltrasoundControlM

StdControl

RadioSend

ReadData

WriteData

RadioReceive

Internal EEPROMC

Leds

OnboardTemp

LedC

OnboardTempcontrolC

cc100radioint nc
CC100RadioInt.nc
  • All the operations controlled by CC1000Control.
  • It uses the Manchester coding for transmission of the RF signal.
  • It provide the multichannel facility such that it can be used for different application.
  • It works on the low power mode.
slide7

PowerMangament

HPLPowerMangement

HPLSim

PowerMangement

SpiByteFifo

GetClockLow

MacBackoff

HPLClock

Send

Receive

StdControl

CC1000Radio

CC1000RadioM

RSSIADC

ADCC

ADCControl

MacControl

CC1000StdControl

CC1000Control

CC1000ControlM

Leds

CC1000Control

LedsC

Random

HPLChipcon

SquelchTimer

TimerC

RandomLFSR

HPLCC1000M

TimerControl

WakeUpTimer

ultrasoundcontrol nc
UltrasoundControl.nc
  • Initialize the timer.
  • Reset the counter.
  • Start detecting the US pulse as it arrives.
  • Generate the event PulseDetected() as the rising edge of the pulse come.
  • Stops the timer.
  • Generate the event DetectorTimeout().
  • Determine the cycle count of the timer.
  • Generate the US pulse of 150 us for the beacon.
  • Send the ultrasonic pulse.
  • Send the time information.
coordinate configuration for the beacon node
Coordinate configuration for the beacon node.
  • There are various ways by which we can configure the coordinates of the beacons.
        • Listener Assisted Configuration.
        • Anchor-Free Localization
        • Robust Quadrilateral Configuration.
  • But for all the application we have to make the reference coordinate model.
  • There are other ways for configure by manually for smaller application.
conclusion
Conclusion
  • The cricket application can be configured from the remote.
  • For transmitting the signal the packet format will be same like the serial port format .
  • For smaller number of nodes we can use the manual configuration.
  • The configuration can be done manually but we have to make some reference coordinate system and putt all the beacons on the ceiling.
references
References.
  • Rapid Coordinate System Creation and Mapping Using Crickets Roshan Bantwal Baliga, M. Eng. Thesis, Massachusetts Institute of Technology, June 2004.
  • Cricket user manual.
  • Cricket software.
slide13
Thank you

Q and A?