Arduino wireless project with a range of 1m

Using Arduino Project Guidance
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Hi, I plan to use my Arduino mega to solve a particular problem and I'll greatly appreciate any suggestions. Scan for an ibeacon device without using a smartphone/app.

Can you please suggest the right hardware I can use with Arduino Mega to accomplish this task?

Thanks

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You could also surround plants with IR beams. When they are broken, the alarm sounds. It is possible to build or buy such things.

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LMI:
You could also surround plants with IR beams. When they are broken, the alarm sounds. It is possible to build or buy such things.

Thanks for the idea.

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My main goal is to find a solution for the couch

Put a dog on it. That will keep the cat off.

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Was it in Australia they got problems with weeds, so they brought in rabbits to eat those weeds. Now they have two problems, rabbits and weeds. Nothing to do with anything of course. You have a cat and sofa, you bring a dog to chase the cat away. I wonder. Hint: dogs like sofas too.

If you want to have room in your pets sofa, buy more pillows or sofas. #pets<#sofas

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LMI:
Was it in Australia they got problems with weeds, so they brought in rabbits to eat those weeds. Now they have two problems, rabbits and weeds.

I don't think the rabbits were expected to eat the weeds. The one rabbit I had only used to eat the weeds if you picked them and offered them to him at his level. The moron who brought rabbits should rightly have been shot (as well as tarred, feathered, drawn and quartered). I think the idea was so that people with nothing better to do could hunt and eat them, something which once having tried to eat rabbit, I could never see the reason for.

But to really compound the mistake, they then introduced Cane Toads!

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Ok.

But then to a totally off topic issue of first poster.
OFFTOPIC:
I think there is no need for an Arduino in first posters problem. Unless your cat wants to tow a car battery, flat batteries will be a problem.
RFID or you may Google "proximity detector" or something similar may help too.
I would try putting an oscillator 100kHz-1MHz with a large coil under the sofa. The receiver is then a much smaller coil resonating at same frequency. That makes it more sensitive. Then an rectifier and a CMOS gate to trigger the sound. If this sounds simple, you need amplifiers and so on if voltage levels are not suitable. And you can't use large sound volume, or your battery will be flat or your cat deaf.
Perhaps Ebay or Chinese have something suitable allready (in theory atleast).
/OFFTOPIC
I am not sure that every cat does what you hope here or elsewhere. They surely are all different, dogs may be a little dim, but there are clever cats around.

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Thanks for the responses.

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