I work in an aerospace museum and we keep having guests jumping over the barricade to jump inside our UH-1 Huey Helicopter Vietnam Exhibit to take a quick picture. They have done it so many times that the artifact is showing signs of excessive wear.
My IT director has tasked me with finding a friendly solution.
I was thinking about using RPi with Arduino and motion sensors that upon detection flashes a strobe light and plays an MP3 of Arnold Schwarzenegger shouting, "Get Back from Da Choppa!".
Does anyone have any recommendations on the boards and sensors that I should use?
You could use either a RPi or an Arduino but I don't see a need to use both. Both can be used with a camera and sensors. The RPi has a built in ethernet connector the Arduino does not.
Electric fence - simple and efficient, and more in style of the exhibit.
madskilz78:
I was thinking about using RPi with Arduino and motion sensors that upon detection flashes a strobe light and plays an MP3 of Arnold Schwarzenegger shouting, "Get Back from Da Choppa!".
You need to give a bit more description on this barrier, how far it is from the chopper, indoor or outdoor exhibit?
If it's just something to keep visitors at a distance, PIR won't work as it will detect visitors on the other side as well. It's not exactly precise. It also won't work in daylight, so it must be an indoor exhibit to even work well.
A few break beam sensors placed inside the fence - so anyone jumping over will break one or more - may work better. At least much more precise location.
Then an MP3 player such as DF Player Mini to play the sound, and some relay to switch on the strobe.
Of course the easiest solution would be to tell the security staff to do their job, that failing get more suitable security staff.
You can get a battery powered IR motion sensor alarm from Harbor Freight for $10 with a coupon that probably would work. It makes a medium or loud dee-doo sound when motion is detected. I think it would probably work well for the exhibit and out the trespassers.