|
|
|
UER Store
|
|
order your copy of Access All Areas today!
|
|
|
|
Activity
|
|
885 online
Server Time:
2024-05-15 03:27:46
|
|
|
Explorer Zero
Total Likes: 2027 likes
| | | | Re: Security Camera < Reply # 66 on 6/8/2019 3:48 PM > | Reply with Quote
| | | I wont bother quoting all the topics where clarification is necessary. Trail cams. Typical Walmart variety camo deer hunter bubba special $59 cameras, are SD card only, however in the $300 and up range there are trail cams, cell phone enabled, web enabled that not only show up real time on Bubba's smart phone but leave a recording of ___ bytes on his home computer's hard drive. Some genius hillbillies out here where I live started stealing them. Soon as they powered them up the cell provider located them for the sheriff's office. Busted!
Most " un" security cams historically have been tied by wire to a local DVR, of unspecified quality and capacity. However nowadays for about the same cost you can have IS cams, linked to the Internet, accessible by mobile device through the building's WiFi. They are dirt cheap, they have 2 or 3 terabyte DVRs (Im using my former skills to protect our church from prowlers and vandals and radical jihadis etc) I know because I just installed some mid-priced ones in that church. IR cams are just "night vision" cams the ring of LEDs is for illumination only and has nothing to do with motion detection capability. They come on after dark and stay on. You cant always see the glow either some are 99% invisible to humans and deer. The motion detect feature may or may not exhibit a visible or blinking light anywhere but the monitor. I have them in the church previously mentioned. The only way you can tell the motion detect is on is by a little icon displayed on the monitor screen. So don't confuse IR illuminated with IR motion detect two separate features. Facial recognition? Well it will undoubtedly come down to Walmart level cams, some day, software included but as of now the cost makes this viable only for high value high security locations only, and municipal street cams like some cities already have.
| |
| blackhawk This member has been banned. See the banlist for more information.
Location: Mission Control Total Likes: 3996 likes
UER newbie
| | | | Re: Security Camera < Reply # 69 on 6/9/2019 9:51 PM > | Reply with Quote
| | | Posted by Dee Ashley If you don’t see the IR motion cams in time, you can oftentimes hear their distinctive “click,” if you set them off (oops). By then it’s too late for stealth, but I have yet to set one off that was actually hooked up to anything live or I just got lucky. For the record, I’ve tried the reflective emergency blanket idea to trick the infrared motion sensors, but that attempt to avoid setting off the IR sensor was not successful when I attempted it.
| IR alarm sensors see the heat of objects in their field of view. They detect changes in the temperature of these. More elaborate ones further break this area into zones and looks for temp shifts across the zone areas. Most in use now are probably zoned. A reflective blanket would be at ambient air temp which may not be that of the objectives it's surveying. It will keep your body heat from tripping it, but not the former. One tactic is to cross as far from the sensor and as slow as possible. Response is time/intensity based. Pass between the zones slow enough and you won't trigger it. The closer you are, the greater the temperature difference and the faster you move between zones, the more likely you will trip it. At 3 feet out on one I had it was nearly impossible to move slow enough, at 10 feet away if you moved very slow you could.
[last edit 6/9/2019 9:52 PM by blackhawk - edited 1 times]
| Just when I thought I was out... they pulled me back in. |
| |
This thread is in a public category, and can't be made private. |
|
All content and images copyright © 2002-2024 UER.CA and respective creators. Graphical Design by Crossfire.
To contact webmaster, or click to email with problems or other questions about this site:
UER CONTACT
View Terms of Service |
View Privacy Policy |
Server colocation provided by Beanfield
This page was generated for you in 187 milliseconds. Since June 23, 2002, a total of 741777272 pages have been generated.
|
|