wireless gas leakage detector

[venus]

i wish to build a wireless gas leakage detector..
anyone have idea about the wireless part?

 

[blueroomelectronics]

What range?

 

[rushi53]

i wish to build a wireless gas leakage detector..
anyone have idea about the wireless part?

There are many ways to go for Wireless part
some of them would be
1. FM module
2. RF module
3. Bluetooth
there are many more

but the simplest would be FM transmitter
Let me know if u want more info.

---------------------------------------------------------
Thanks,
Rushikesh
Projects of 8051 - AVR, Microcontroller projects - Electronics projects

 

[venus]

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]

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

 

[BrownOut]

I haven't seen DTMF in quite some time. Those things still around?

 

[rushi53]

I haven't seen DTMF in quite some time. Those things still around?

yeah... coz its simple and cheap...

 

[venus]

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]

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