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wireless gas leakage detector

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rushi53

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venus

New Member
blueroomelectronics,
i wish that the wireless range can be in a multilevel building

rushi53,
i think i would try the simplest fm transmitter


but i plan to use PIC to control the output..
anyone have any idea on that part??
 

rushi53

Member
blueroomelectronics,
i think i would try the simplest fm transmitter
For Transmitter side
give the output of gas sensor to microcontroller.
then give output of microcontroller to DTMF encoder
DTMF encoder output is given to FM transmitter

For Receiver side
FM receiver output is given to DTMF decoder
then give output of decoder DTMF to microcontroller
give the output of microcontroller to buzzer or display
or else you can give output of decoder directly to buzzer

Please let me know if you need any more help
 

venus

New Member
For Transmitter side
give the output of gas sensor to microcontroller.
then give output of microcontroller to DTMF encoder
DTMF encoder output is given to FM transmitter

For Receiver side
FM receiver output is given to DTMF decoder
then give output of decoder DTMF to microcontroller
give the output of microcontroller to buzzer or display
or else you can give output of decoder directly to buzzer

Please let me know if you need any more help

i have found some transmitter and receiver module in the market ..
but the max frequency is 433Mhz..
i scared that it will be blocked by the object in between the distance..
any advice for me??
 

superfrog

New Member
Sorry in advance for the bad taste,

I have a single component, low cost, solution using sound wave trough the building structure for transmission of lower level leaks, and a physical high intensity signal for more critical ones.

A candle.
Any open flame generation apparatus could be used, but would probably not be as reliable. A large, parafin, slow burning model could last for several month at a time between inspections/replacement for a really low price. Functionality is guaranteed with a clear and esthetically pleasing visual indicator at the top of the sensor.

If the place vibrates, or gets structuarally challenged, users would be informed there was a gas leak.

My bad,
sorry :)
 
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