Detect petrol burglary

[gmphadte]

I had my car tank emptied by a burglar by cutting the rubber hose that leads to the filling point. This happened in my parking place below my apartment.
The motion detecting spy pens r very costly.

Now I want to make some sort of detection and sound an alarm.

I want to detect the petrol in air near the hose, with some simple means.

Can it be done using some ionizing chamber.

Thanks in advance.

Gajanan Phadte

 

[Mooly]

Probably you could given a suitable chamber... if they are exposed to the elements though they might not survive... quite fragile I think.

If the pipe would move physically when disturbed or cut maybe something like an optoisloator (the sort with a gap in the package) and a vane or something stuck on the pipe to block the IR but that move if disturbed.

 

[gmphadte]

That is a good idea. I am going to think on and implement.

Thanks

Gajanan Phadte

 

[gmphadte]

I have decided to go for a PIR sensor and a cctv camera. The PIR sensor will wake me up when the burglar arrives and then I will put on the camera and video shoot the picture from the TV using the mobile.

Gajanan Phadte

 

[Mooly]

Good luck

 

[cyclecamper]

1) New tank fill tube mounted behind hinged license plate, ala Pontiac Lemans or GTO.
2) Old fill tube goes to new small 2-gallon tank of gas/sugar mix.
3) Park in dark place to encourage theft.
4) Watch for neighbor with stuck rings.

 

[UKPD]

A1

 

[Aucosticraft]

I have decided to go for a PIR sensor and a cctv camera. The PIR sensor will wake me up when the burglar arrives and then I will put on the camera and video shoot the picture from the TV using the mobile.

Gajanan Phadte

yes.... same here.. We need to get the burglar caught, after all, Petrol is not cheap now.

 

[kevinahcc20]

1) New tank fill tube mounted behind hinged license plate, ala Pontiac Lemans or GTO.
2) Old fill tube goes to new small 2-gallon tank of gas/sugar mix.
3) Park in dark place to encourage theft.
4) Watch for neighbor with stuck rings.

Note that the old "sugar in gasoline" legend as a way to scrap engines has been thoroughly debunked. Because sucrose is essentially insoluble in gasoline it will not mix in and simply lies on the bottom undissolved. Google "sugar in gas tank myth".

 

[N Brock]

This or something like it could work well.

LPG Gas Sensor - MQ-6 - SparkFun Electronics

Let us know how it goes.

-Nelson