Wireless Outdoor Security Camera Systems

Outdoor Security Camera System | Cam.ly™ - Wireless Security Cameras


Wireless Outdoor Security Camera Systems News:


ZMODO 4CH NVR System Featuring 4 Indoor/Outdoor Wireless IP Cameras w/ Night Vision

http://www.homesecurity361.com/new-arrival-nvr It is a True Revolution in Surveillance Systems. This NVR system features a compact and elegant appearance. Op…


Q&A:

batstooge asked I would like to buy a wireless outdoor camera security system. Any suggestions?

I don’t want to spend a fortune, but I’m not cheap either. Does anyone know of some decent wireless systems with about 4 cameras that I can mount outside and view from either my TV, Computer, or a monitor that comes with the system? Any help is appreciated.

And got the following answer:

First of all, if you are looking for a good usable image you probably want to stay away from the offshore gunk being schlepped off on the geeknet and big-box stores.

There are a number of ways you can go, as for viewing camera’s on TV there are channel inserters available which will superimpose your video onto a channel on your CATV. Another method is wireless UHF transmitters, however the neighbours will also be able to see snippits of your video (Which may or may not be a good thing, depending on your openness)

Another method is to use a networkable DVR which you can access through your Local network (could also be accessable remotely if you have a static IP). If you don’t already have one, you will have to get a multi-port router for this to work. Cheap only 30 to 150 bucks.

You could also get a stand-alone surveillance system with a video switcher / sequencer or quad display. This will only record if you attach a recorder, but if you are looking to view only this could be the solution for you. If you take a look back in my answer history there was a similar question where I went into more detail on the differences between Switchers, Mux’s, Quad’s and DVR’s. I also wrote an article on camera’s awhile back, it is fairly old, however most of it still applies. There is more information which may help on my website at http://www.keepsafesystems.ca.

I hope this helps you out in your endevour.

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The starting point of any C.C.T.V. system is the camera. Simply stated, a camera is a light sensitive device that converts particles of light into electrical impulses, however, there is a vast difference in the quality of cameras available to the consumer. Factors that differentiate the various cameras include whether they are color, black and white, light sensitivity, image resolution and image transfer technology. The consumer must also consider the inherent advantages and disadvantages in each of these different camera technologies and decide which features best fit their individual needs and goals.

In the past, color cameras have been both very expensive and lack-luster in their image performance, when compared to black and white cameras. New technology is now bringing the innovative technologies closer together in both the price and performance scale. The current differences between the two technologies are almost entirely limited to light sensitivity and light reactivity.

Light sensitivity is measured in LUX. The lower the LUX rating, the higher the sensitivity to light. It is important to keep in mind that even the best-rated cameras are limited by the technology of the day, as well as the visibility conditions present at the time of the surveillance. Although great advancements in low light surveillance continue to be ongoing, the image quality in a low light situation will rarely be up to the standards of daylight surveillance.

Color cameras, although much more appealing on the outside when compared to their black and white counterparts, generally offer less low light sensitivity than a black and white camera. The other advantage of black and white cameras over color cameras is its ability to “see” infrared light, which is invisible to the human eye. You can test this by aiming a standard television remote at a black and white camera while watching the monitor, the flashes you see are bursts of infrared light. The advantage of this becomes apparent in the ability to light up a dark area with infrared light, thus making images visible in almost pure darkness. With the color camera the area will appear unlit, however, to a black and white camera, the area will appear almost like daylight.

The black and white camera‚s reactivity to the invisible light spectrum can also pose a disadvantage in certain applications. Infrared light, although not visible to the human eye, is found in abundance in many everyday situations. For example, when aiming a black and white camera at hot pavement, it will “confuse” the camera resulting in an unbalanced image. Professional grade black and white cameras often incorporate infrared cut-filters. These cut-filters inhibit the infrared light spectrum in turn decreasing the cameras low light sensitivity.

The C.C.T.V. Industry measures image resolution in horizontal lines. The higher the line rating, the clearer the image will appear. With this fact in mind, consider that all electronic components within a C.C.T.V. System, from the camera, to the VCR, to the monitor. These items are all rated in the same way. The actual resolution of the entire system will only be as high as the lowest rated item. For example, if you have a camera rated at 450 lines and a monitor rated at 300 lines, then the result will be 300 visible lines of resolution because the monitor is the lowest rated item in this example. Another point to keep in mind is that the line rating is “Total lines” not lines per inch. Therefore a 12″ monitor with a 300 line rating has a far better clarity than a 17″ monitor with the same line rating.

The most recent and predominant advances in the C.C.T.V. Industry are the changes in image transfer technology. This technology deals with how the camera takes light particles and converts them into electronic images. Without going into too much detail, image transfer technologies include the following:

Phosphorus Tube Cameras – This camera has low quality, old technology and is susceptible to “image burn”. Image burn is when intense light sources will burn themselves into the camera‚s light receptor resulting in the image appearing “memorized”. Although this is not a problem with modern day cameras, image burn can still occur on monitors. Tube cameras are also known for poor low light sensitivity.

C.C.D – Also known as “Chip cameras”. This camera is the most standard of cameras in the professional realm. C.C.D. cameras do not suffer from the problem of image burn and can incorporate various methods of signal processing, which offers a high level of flexibility to the installer.

CMOS Transfer Cameras – These cameras are very small and continue to get smaller as the technology advances. Although very attractive in their size, CMOS cameras generally do not offer the signal processing, image quality or low light sensitivity of the higher priced C.C.D. camera models. However, the technologies are slowly growing closer together to the point where CMOS cameras may eventually take over the Surveillance Industry.

The Surveillance Industry has continued to move towards the implementation of color cameras that switch to black and white, or even infrared in low light conditions. Although there are some models currently available on the market, the technology is not at a point where it is affordable enough to be manufactured on a large scale.

Gary asked What is a good home security camera system?

I am looking for an home security camera sytem that I could link with my tv on it’s own channel.

Any suggestions?
Trying to stay below $400, I could do any wiring myself. I live in South Florida so it gets to be around 90 degrees on average. Just a standard resolution in color. Night vision would be a big plus but not needed. If it could be directed to the video input on a receiver that could work also. Would want it to store recordings.

And got the following answer:

Analog, composite video? There are lots.

On its own channel? Some RF modulators can be expensive, especially if you want to select the channel. Easier if you just use one of the other video inputs that are not in use.

What is your budget?
What resolution are you looking for?
Will the video need to be recorded and stored? If yes, what surveillance DVR are you looking at?
Only one camera?
Is night vision required? If yes, how far does the camera need to see in darkness?
Does the camera need to be outdoor rated?
Does it snow where you live? If yes, you may need a housing with a heater unit.
Does it get REALLY hot where you live? If yes, you might need a housing with a cooling system.
Is the video signal to be wired or wireless?
Is there power available where you plan to install the camera?
Is the camera going to stay in one position or is pan/tilt/zoom control required?

You have not provided enough information for anyone to provide you a good recommendation.

herringchip asked what are the best security camera systems for businesses with warehouses & large property to secure?

would like info on the best and affordable wireless security camera systems. Need at least 4-5 cameras. Need wireless, outdoor use, night vision, and zoom features for plate and face identification. a large area needs to be covered (about 3 acres). However, I mainly need to survelence for parking entrance/exit, Cash register, and 2 locations of shipping and receiving. need to know how to relay feed to central computer which in some cases is over 1200 feet away from the camera feed. thanks!

And got the following answer:

It sounds like you have fairly specific needs. If you are looking for licence plate recognition, night vision and zoom features it is not going to be cheap and you should probably stay away from wireless solutions – particularly inexpensive ones.
As for connection to a central computer, this is typically done with a DVR (Digital video recorder) Through IP. Although there are some IP specific camera’s out there. Be careful on the equipment you choose as there is some pretty crappy offshore equipment out there. What looks good on a monitor locally may not look so good once the image is compressed and sent over the internet or LAN.

When you look at a system it is best to look at it as a whole. There is a term we use in the industry – crap in crap out. You may have the best the best camera but it doesn’t matter one biut if your recorder is crap. Same goes for the recorder, if you have a great recorder and really bad spystore camera’s you might as well be looking at a black and white TV in the middle of the bush with no cable.

I don’t know what area you are in, but there is some basic info on my website at www.keepsafesystems.ca you may want to contact a professional in your area.

ExtremeCCTV just came out with a licence plate night camera. It is quite impressive but by no means a Costco / home depot unit.