Posts Tagged ‘ multi functioning security camera ’

Security Cameras with Night Vision

Written By:
Thursday, May 17th, 2012

night camerasAll about Night Vision Cameras

A night vision security camera is probably one of the best choices that you can make for your new security system. The vast majority of criminals are not going to stand right in front of any type of security system in the middle of the day, but night vision cameras will allow you to get a great look at the criminals when they are more than likely to attempt to strike and commit a crime. These cameras are more affordable than what you may think and now that there is the option of having wireless technology you will be able to install the system yourself, without the assistance of a professional. Even though night vision cameras work best on the inside of your home, when you take the proper measure you will be able to install the night vision camera on the outside of your home. You will be able to see whether or not anyone has tried to break into your home or business. When you have the night vision cameras installed, you are going to have the peace of mind you are looking for.

You should never leave the security of your home or business in the dark. Night vision security cameras can bring you the solution you are looking for to solve the problem. There are a lot of different models in night vision cameras, but the main thing to remember is that these security cameras are going to operate on one of the two key principles, either thermal imaging or image enhancement. The thermal imaging works through collecting wavelengths of heat from the various objects and then transmits them into a picture. Image enhancements work through amplifying minimal amounts of light to be able to make the image appear. You don’t have to make the decision in night vision security cameras any more difficult than it needs to be.

The whole decision process of your night vision security camera is going to depend largely on what you are planning to use the camera for. The LEDs are going to emit a light that will not be able to be seen by the human eye, but instead it reflects from an object that will then in turn be amplified by the camera. The higher the amount of LEDs that are sent out from the night vision cameras, the brighter the images are going to be and the greater the amount of distance that will be covered. Picture clarity is going to depend on the number of pixels, as well as the television lines that are available.

Some of the other options that need to be considered when choosing your night vision camera include: motion detectors, day and night operating capabilities, and fixed versus an adjustable lens. The day and night operation allows the camera to be able to switch from a limited operation during the day, which is typically in color, to a low-lighting condition for the evening operation, thus eliminating the need for two separate cameras. Motion detectors are going to reduce the amount of power that is being used by only turning the camera on whenever there is movement detected. Lens types need to be determined from whether the camera will remain fixed or of there is going to be a need for it to be moved or zoom in on an object in its line of sight.

Night Vision Cameras and How They Work

Whenever light strikes an object you will find that the atoms are going to react and emit a low amount of frequency that is an infrared wavelength, which is more similar to regular heat than it is to visible light. Night vision security cameras are very sensitive to the thermal-infrared emissions and it will amplify them so that they are converted to the measurement of an invisible wavelength that is an image that appears on your monitor. This particular type of night vision can be referred to as thermal imaging. Thermal imaging is an excellent way for detecting people or movement when you are near complete darkness. The majority of the cameras are going to have a more practical approach to night vision known as image enhancement.

This particular type of device is going to contain a lens that will be able to sense light at a higher frequency than the infrared cameras. It can sense light from anywhere for the most reflective infrared wavelengths all the way to the almost invisible red wavelengths. The light has photons that are going to be converted to electrons that are amplified through a component that is known as photocathode. Those same electrons are then converted once again into photons that are going to produce a strong image that will be highly visible on your camera’s screen.

What is the Purpose of Infrared Illumination?

When you choose to saturate the area with a reflective light it allows your night vision camera to be able to draw in the image with a more enhanced detail. It is the same concept as if you were to shine a spotlight into something that you need to see with your own eyes. This whole process will make the object more visible as the area is lit up with the invisible light to greatly improve your chance of night vision.

How Do I Select a Night Vision Camera?

Night vision security cameras are going to have a Lux rating applied to them. This Lux rating actually refers to the minimum amount of illumination for which the camera is going to be able to pick up and detect an image. Thesecurity cameras with night vision camera will have the best amount of performance for nighttime and low-lighting conditions, if you can get your rating as close to 0 as possible. The night vision security cameras are going to have the assistance of infrared LEDs, which also have a Lux rating of the bare minimum. This means that the security cameras are going to be able to see when there is absolutely no light and complete darkness. When you have a color day and night camera you will automatically be able to switch to the black and white shades in the evening for the best possible performance when you are faced in a low lighting situation and then it will switch back to color as soon as the lighting levels are acceptable enough for it to do so.

Night vision technology has been around for a long time now and it continues to advance slowly as the year’s progress. It was around 50 years ago that the first night vision cameras consisted of nothing other than a simple infrared spotlight and a receiver that was photosensitive in order to be able to pick up the reflected beams of light. This whole process was not as effective as they thought it would be, so they ended up enhancing the reception on the passive IR emissions. The next generation of cameras saw the incorporation of a micro channel plate, which was then multiplied through the efficiency of the conversion of electron photon, thus another step in the advancement of night vision technology. Shortly after another generation was introduced to be used by the U.S. Military, which incorporated the use of improved resolution and sensitivity. Not to mention the exceptionally long life for the cameras. The last class of cameras are actually quite expensive, but they tend to be the best and the most powerful cameras to date.

Range of Night Vision Cameras

The night vision security cameras are only limited to the amount of light that it can detect through the IR light. If the camera is focused on thermal imaging, it is going to be able to pick up any movement or heat at a much farther distance than your typical static objects. When the conditions are right the night vision cameras are going to be able to view anywhere from 30 to 300 meters away. The different weather conditions are going to be able to affect the range the camera can view as well. You will be able to extend the range of your camera through saturating the area completely with some extra infrared illumination.

Night Vision Power Source

Most of the night vision security cameras are going to come equipped with an adapter that can be plugged directly into a wall socket. There are some of the models that offer the incorporation of a battery to provide an even greater mobility for your camera. You are going to need to feed the video and audio cables from your camera into your choice of monitoring device. You could always choose to have on-site installation performed, if you are unsure of how to hook up your camera correctly. The wireless models allow the transmitting of a frequency toward a receiving unit, which will then feed those cables into your choice of monitoring system. This particular type of camera is typically going to require some form of external power.


Day and Night Security Cameras

Written By:
Wednesday, May 16th, 2012

water proof day and night cameraIn your quest for finding the perfect security cameras for your residential or commercial security system, you have more than likely discovered day/night security cameras. Day/night security cameras might seem like the perfect solution for your security camera needs, since they claim to capture clear footage in bright light and in darkness. However, day/night security cameras offer different quality footage depending on the model, so it is important to take a closer look at these cameras before depending your entire security system on them.

What Are Day/Night Security Cameras?

As technology has improved, so have day/night security cameras. A day/night security camera can capture video footage in both bright lighting and in darker settings. Day/night security cameras automatically switch from full-color footage during the daytime to black and white, which is better for taping in the dark, in the evenings.

What Are The Pros and Cons Of Day/Night Security Cameras?

One of the best features of day/night security cameras is that they can function in a variety of lighting situations, and that they automatically adjust to color in bright light, and then to black and white when the lighting gets low. A color picture is often preferred during the day time, but black and white footage is best for video footage that is taken at night and in situations where the lighting is minimal.

Day/night security cameras can often provide an excellent picture in situations where there is low light, such as in the moonlight or by the light of a nearby street light. They also work just as well during the daylight, only in full color. Having cameras that are so versatile can be a benefit because no matter what time of day it is or how the weather is outside, you are sure to have a constant stream of reliable, clear video.

Although you should always check a specific model to be certain, you can pretty much rely on most day/night cameras to be weatherproof, meaning they can be used both indoors and out. Since day/night security cameras are so versatile for both indoor and outdoor and low lighting or full lighting situations, it is easy to understand why many people prefer day/night security cameras over other options for their security systems.

Many day/night security cameras do not have infrared technology, so they can not actually “see” in complete darkness. Typically, there will be enough light in the vicinity of your day/night camera for it to function, rather it be by the moonlight or a streetlight outside, or a dim light that is left on in your building or home at nighttime. In fact, you might be surprised how little lighting these cameras require in order to capture high quality video footage. However, in complete darkness, day/night security cameras that do not have infrared technology will not be able to capture video footage.

Why Do I Need Day/Night Security Cameras?night security camera

A day/night security camera is a good addition to any security system because of its versatility. Even if you already have a sufficient set of security cameras in your home or business, you might find that adding a few day/night security cameras is a worthwhile investment, as you are then ensured maximum security, no matter what the lighting of the area is.

How Can I Determine The Best Day/Night Security Cameras?

The best day/night security cameras include infrared technology so that they can capture high quality video in complete darkness. If you are planning on using day/night cameras for your primary security footage, you will want to find a day/night security camera that has infrared technology. This ensures maximum security at all times, so you will never have to worry about what is going on in your home and business when you aren’t watching.

If the day/night security camera you are looking at does not include infrared technology, take a look at its Lux, or minimum illumination rating. This rating lets you know how much lighting is required for the camera to capture good footage in dark situations. If the number is very low, then very little lighting is required; for example, an infrared security camera has a Lux rating of 0.0, so the closer your Lux rating is to 0.0, the less light it requires to take high quality footage in the dark.

It is also important to assess the quality of color video that is taken during the daytime. A video that is in full color can still be blurry, making it difficult to identify people that are captured on camera.

Day/night security cameras are available in several styles, from your average mounted camera to a domed camera that mounts on the ceiling. People have different preferences when it comes to different camera styles, so you should choose the style that you prefer. Many retail stores choose domed cameras, as they are darkly tinted, making it difficult for customers to tell in which direction the camera is pointing. Bullet cameras and other cameras that mount on walls make it a bit more obvious where the camera is facing, but this does not have to be a problem. An adequate security system uses enough cameras that every square foot of the inside and outside of a business is covered by a security camera, so if one camera is not covering an area, another one should be.

How Will Day/Night Security Cameras Fit Into My Security System?

Depending on the day/night security cameras that you choose, you may be able to strictly use day/night security cameras. If you are planning on switching to day/night security cameras exclusively, it is important to make sure that these cameras do contain infrared technology and that they can still capture footage in complete darkness.

If your day/night security cameras can not see in complete darkness, they will still be very effective, but you will want to add a few infrared, or night vision, security cameras to your system to ensure full coverage of your property at all hours of the day and night. You could also consider adding more lighting to your property to accommodate your new day/night security cameras. Extra lighting helps in a security sense for a couple of reasons. Outdoor security lights will probably be enough to allow your day/night security cameras to take good surveillance footage, even if they do not include infrared technology. Also, having ample lighting is a known way to deter crime. A criminal will not feel as daring in the broad light that is provided by a security light or street light, and obviously prevention is even better than catching a criminal after he has already committed a crime. Also, security lights or street lights will make you, your employees and your customers feel much safer and more secure when walking through your parking lot at night. In fact, adding security lights to the parking lot of your business can increase your business, as customers who feel safe at your establishment are more likely to frequent it and to forgo the business with the dark, scary parking lot.

It is sometimes a good idea to mix and match your security cameras for maximum protection. Using several types of security cameras can help you to get different angles, different views and different pictures of the activity that goes on inside and outside of your home or business.

When purchasing security cameras of any type, including day/night security cameras, it is important to make sure that the cameras you are purchasing are compatible with your existing security system. You also want to make sure that you have a good quality monitor from which to view your security footage, because even if your cameras are capturing high quality, high resolution footage, you will not be able to view it if your monitor is not clear. A good quality monitor is one of the cheapest components that you will purchase for your security system, so it is worth your while to put a little extra money and consideration into this investment.

Last but not least, no matter what type of security cameras or system that you have, if you do not use it, it will not help you. Since you are spending the time to research the best security cameras, and since you are willing to spend the necessary money to purchase the best security cameras, it is important that you get your money’s worth. Many people become comfortable after realizing that no foul play or theft has occurred on their property or in their area, and when they do, they often stop turning on their security cameras or watching their surveillance footage. No matter how safe you think you are, it is important to allow your security cameras to do their job by keeping them on at all times and by routinely reviewing your surveillance footage.