Jay
During the daytime, the image quality is great, but nighttime viewing is impossible since the reflection from the night-vision IR lights reflect off the window the camera is pointed out of. Any suggestions as to how I can coat the small portion of window to block the reflection while allowing the camera to see through it?
Answer
Depending on the camera angle, you could get some nast glare.
Depending on the camera angle, you could get some nast glare.
Is there an outdoor rated trip wire that would remain silent outdoors but alert me indoors?
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.
'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.
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