Hello,
In my experience, I don't think the microphone is sensitive enough. If two
motes are far from each other (not more than 1 meter),
the microphone will not detect the sound. However, I feel the sound is
enough loud, I can hear it from further place.
so the single conclusion is the microphone is not as sensitive as peole's
ear.
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| | 马 峻岩 <[EMAIL PROTECTED]> |
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| | Sent by: |
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| | .EDU |
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| | 2004-05-12 10:42 AM |
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| To: [EMAIL PROTECTED]
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| cc: (bcc: Qinfeng Zhang/SHA/RESEARCH/PHILIPS)
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| Subject: [Tinyos-users] Need help about TinyOS
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Hello,
I am working on Acoustic Ranging.Recently I have some problem in the
reserch.
First,in the acoustic ranging experiment,which kind of method do you use to
detect the arriving of the sound? At the begining,I use the interface of
MicInterrupt provided by component MicC,but it failed.The "event
MicInterrupt.toneDetected()" doesn't work well.
If you konw the way to use the interface MicInterrupt,please teach
me.Thankyou.
Then I can only use the Mic.readToneDetector() command looping to detect
buzzer.
Second,about timing.Alos in the experiment of acoustc rainging,how do you
usually time the time flowing?
I really appreciate your help
Thank you again!
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