home security thermal camera

home security thermal camera

There are a lot of variables that affect what you see on the monitor when viewing video playback files from a CCTV security camera system. Frames per second (FPS) are usually one of the first and main considerations when making a system purchase, but there are a few things you should know before running out and buying a surveillance system that simply boasts “30FPS!”.

Frame rate is defined by how many still images per second are being displayed, and affects how smooth a video appears. If you have a low frame rate of say 7 FPS, you are going to see images that appear to jerk through motion. In some cases, this slightly jerky video is acceptable, but, if you are going for maximum clarity and detail, it may not be. As the FPS increases, so does the smoothness of the video. The maximum FPS you are going to see in the surveillance industry is 30 FPS, which is about the same number that the human eye can register. Most people will not be able to tell the difference in 30 and 15 FPS, though, because they both produce relatively smooth video.

On most digital video recorder (DVR) systems, whenever you pump up one setting, you are going to lose something in another area. DVRs that advertise 30 FPS per channel are basing that figure on a set image size. For instance, if you get a GeoVision GV800 card that has 30 FPS per channel, that number is based on an image size of 320×240 pixels. On that Geo card, if you increase the recording resolution from 320×240 pixels to 640×480 pixels, your FPS per channel will drop by about half. You would then be viewing recorded video at about 15 FPS. If you increase the resolution again, to 720×480 pixels, the FPS will drop again by about half, leaving you with about 7 FPS, which may be undesirable.

Some of the newer, high end DVR cards are now using hardware to compensate for the loss of frame rate when increasing image size. These are not, however, inexpensive systems. The GeoVision GV-1480A capture card, for example, will allow you to increase the image size to 720×480 and lose only 1 or 2 FPS.

The technology is continuing to advance, and hopefully we will see more affordable, real time recording solutions in the near future. Until then, you have to look at your application, determine what level of detail and clarity you need, and go from there. Remember to always check the maximum FPS per channel and at what resolution that records at. It may be hard to make out subjects at 320×240 or 640×480 pixels, especially at 7 FPS, so if you want a truly effective security camera system, you probably want to up your expectations on pricing, etc, and go ahead and spend the extra money to be truly protected. If you have had experiences where buying higher quality equipment has saved you in the long run, or vice-versa, please let us! Real world applications provide the true value that allows people to make educated decisions about future projects and purchases, and we really appreciate them.

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VideoSecu Pinhole Lens PIR Covert 3.7mm wide view angle 420 TV Lines Security Camera Body Heat Motion Sensor DVR CCTV Surveillance Recording 1N1 $139.99 This device offers IR Covert Camera and DVR all-in-one solution. Multiple components or tricky wiring are no longer required. With this new generation Sentry Eye video camera and digital video recorder which is equiped with human body heat detection technology, you can install greater peace of mind for a fraction of the cost. The Sentry Eye Mini camera DVR added security and ultimate control for w...

SecureShot Fake Rock Hidden Camera & DVR - Color $599.95 Introducing SecureShot "Yard Guard". Our new line of covert, weatherproof digital video recorders designed to protect outdoor assets and property. This is fake "rock" that will look natural in a multitude of outdoor environments. It blends is with almost any "garden or lawn" unnoticed. With our exclusive copyrighted micro PIR motion activation system, there is virtually no battery drain while on ...

Panasonic BL-C111A Network Camera Wired $199.00 MPEG-4 Pan/Tilt Network Camera with Preset Modes, up to 30 Frames per Second CMOS, Full-Screen Monitoring and Remote Monitoring from Cell Phone....

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IP Outdoor Fixed Network Camera, splash proof, built in lights $562.44 Do you sometimes worry about things at home while you're at work or on vacation? Panasonic BL-C160A camera let you monitor the entrance or garage of your house over the Internet from wherever you are. Let Panasonic BL-C160A network camera keep an eye on things anytime, anywhere so you can relax and enjoy yourself....

Axis Surveillance/Network Camera - Color. AXIS Q1921-E 10MM 30FPS THERMAL IP66 384X288 H.264 POE NV-CAM. Wired Manufacturer: Axis Communications Manufacturer Part Number: 0389-001 Brand Name: Axis Product Name: Q1921-E Thermal Outdoor Network Camera Marketing Information: AXIS Q1921/-E Thermal Network Cameras are a perfect complement to any network video system that needs to secure an area 24 hours a day, seven days a week. The cameras use thermal imaging, which allows users to detect people, objects and i...

DEWALT DCT410S1 12-Volt Max Inspection Camera Kit $259.00 WIRELESS SCREEN VIDEO & PHOTO CAPTURE 3X ZOOM MICRO SECURE DIGITAL CARD(TM) SLOT HOOK & MAGNET TOOLSUPC : 885911231312Shipping Dimensions : 20.70in X 14.20in X 5.00inEstimated Shipping Weight : 8.8536...

System Sensor 2WT-B 2-wire Photoelectric i3 Smoke Detector with a 135°F Fixed Thermal Sensor $28.45 System Sensor i3 series smoke detectors represent signifcant advancement in conventional detection. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection....

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