Selasa, 29 Oktober 2013

Is there an outdoor rated trip wire that would remain silent outdoors but alert me indoors?

best nighttime security camera on The Lilin IPR-414ESX has a 40m infra red range and is ideal for ...
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MattLives


For instance, say I have this trip wire set up outside my house and something activates it. Ideally I would like the "subject" which activated it to remain unaware of my knowledge of their presence. Kind of like those car alarms that make your key fob vibrate or beep while remaining silent outdoors. Also, said trip wire would have to be outdoor rated. Rain/impact/cold proof.

I really don't know how to go about finding such an item but if anyone has any ideas they'd be much appreciated.



Answer
'Trip Wires' are not what you want.........50 years ago maybe. But today we have battery operated motion detectors, we have battery operated night vision cameras for under $29 and wireless battery operated cameras for under $40.

Instead of a trip wire - you simply put up a battery operated color daytime and IR nighttime camera with a wireless transmitter. Indoors you connect the wireless receiver to your tv or computer and use the software to view the picture...... the security cameras will have software that alerts you if a certain percentage of the image changes suddenly.

The internet is chock full of stores that sell this stuff. Most have cute web site names like spytown.com or can be found on ebay. They make some really powerful liner amps to boost the signal - and using directional or Yagi high db gain antennas you can push one of those little cameras up to 7 miles.

8 yeas ago I was able to mount a wireless camera on top of a Radio Shack 4x4 RC truck and we drove it all over the yard wile watching the camera image on the tv in our living room. I cabbaged that rig together from stuff bought off of ebay for under $90.

Many of these little cameras have an auxiliary contact. You mount the camera and attach a motion detector to the aux contacts. When the motion sensor detects something it triggers the contacts - the camera sends a signal to the receiver in your home and closes the aux contacts there - this will set off what ever light, bell, siren or what ever you want to alert you. This is the same signal usually used to jump a digital recorder from low fps to high fps (frames per second) or higher resolution.

Bottom line - there are tons of cheapo goodies out there. Start at ebay and take notes on what they are calling the different things - then hit the internet.

is this vandalism? what can i get them for?




blackie


one night a group of people went to my girlfriends house and piled EVERYTHING on there porch in front of the doors and windows on the porch. in the morning they couldn't get out and had to have their neighbor come over and start moving things from the outside.

repeatedly things like this have been happening, but not quite as extreme. this morning there was just a large traffic cone sitting at the top steps in the middle of the porch.

its obnoxious and makes me worried for her. she also lives with 3 other girls.

i plan on buying some basic nighttime security cameras. its clearly happening very late at night. cause i went there last night at 3am to take care of her cause she was getting sick and it was not there, but it was when we woke up.

so im thinking if i can get video proof it can be maybe vandalism? but im unsure of that since nothing was damaged.
and trespassing
harassment since its constant
and endangering the lives of others when they piled things in front of the doors and windows.
their reporting it today. but i doubt police are going to care much about a traffic cone on the porch.

so what do you all think?



Answer
yes




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