Looking back, Pan Tilt Zoom (PTZ) cameras have come a long way. As technology as has advanced, PTZ cameras have decreased in size and weight while offering even better features and functions.
These high-quality PTZ cameras are ideal for monitoring large, open spaces both indoors and outdoors. Some examples include casino, malls, airports, and stadiums, where effective and efficient surveillance is necessary.
As with any security system, selecting the right PTZ camera system comes down to individual security needs. Here are some important features to consider when choosing PTZ cameras.
Now nearly all PTZ systems are equipped with video analytics which provide numerous benefits:
Arguably one of the most valuable features of PTZ cameras, auto-tracking controls the PTZ actions of a camera to automatically track (keep in field of view) an object in motion. This can be triggered manually or automatically by defined rules. Once a rule is triggered, the camera automatically zooms in and tracks the defined target.
Advanced Video Compression
The H.265 compression standard enables much higher compression ratios with lower bandwidth and storage requirements than before, providing higher resolution images and deeper systems integration. However, optimized implementations of the H.265 codec are emerging, like the Smart H.265+. In comparison to the standard h.265 video compression, Smart H.265+ reduces bit rate and storage requirements by up to 30 percent.
High-Definition Video Over Coax
Legacy coax systems can be easily upgraded to HD video using existing analog infrastructure thanks to HD video over coax. With this option, there is no latency in system responsiveness and no video compression, so the images maintain a high level of detail without stretching or distortion. In addition, there is no need to install a separate cable to control PTZ since coaxial cable allows for bidirectional data transfer. Overall, this is a cost-effective way to upgrade PTZ cameras.
Infrared (IR) Illumination
With PTZ cameras, IR illumination is applied as needed. There is usually an array of three distinct areas of infrared illuminators – each with a different angle of dispersion for the IR light: wide angle, telephoto, and interim angle.
As an example, when an operator optically zooms in from wide angle to telephoto, IR illuminator LEDs will turn on and off to provide the appropriate illumination. And when the camera is in zoom mode, it adjusts the IR illumination so that the system is not flooding the entire 120-degree view. These automatic modifications illuminate the area in view, producing better video and reducing the amount of power required.
Video Quality Expectations
Zoom Factor vs. Focal Length – Keep in mind that a higher zoom factor does not always provide a better video image. The focal length of the lens will provide a better indication of what is appropriate for an application.
Plastic vs. Glass – Remember not all lower domes (the protective housing at the bottom of a PTZ camera) are the same. While most manufacturers use a plastic lower globe to protect the camera and optics, this can offer a lower degree of optical clarity. As the camera pans up toward the horizon, it begins to view through the globe in areas where it has the least uniformity (where most optical distortions can occur).
Glass lower globes (or a flat piece of glass, as provided by some companies) are more optically pure and consistent in comparison. These glass coverings enable dome systems to feature higher resolution sensors and longer optical zooms thanks to their clear and consistent nature.
Some modified lower dome designs allow for above-the-horizon viewing – ideal for those who need to monitor rough terrain or scenes on different planes of view.
Thinking about installing a PTZ system on your property? We carry a great collection of quality PTZ security cameras. Browse our stock online or call 888-203-6294 to request a site survey, free quote, or inquire about our installation services. Connect with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Shopping for security camera systems may seem like a one-size-fits-all deal, but, unfortunately, it is not. Because there are a plethora of security camera types and surveillance features to be considered, it will take some time to decide. Evaluate your security needs, do some research and weigh your options. To make it easier, we will break down the different types, housing, and common features of security cameras.
The following are the advantages and disadvantages of common security camera types.
For zoom capabilities, 32X is fairly common, although some higher end cameras may have a greater zoom range. While a greater zoom range is helpful when covering a large area, it is not always necessary.
However, there are some downfalls. Because PTZ cameras can adjust its viewing range, there are chances that they may miss something. Also, zoom decreases the size of the area being covered, and the camera can only be facing one direction at a time.
Unfortunately, these cameras are often oversold as a universal solution, despite the fact that very few rooms allow for an unobstructed view in all directions. In applications where this camera is necessary, it often does wonderfully. However, a standard fixed camera can be paired with a lens to give it a 120-degree to 140-degree view. Also, many rooms are better monitored with cameras in corners (which only require a 90-degree field of view).
Once you have chosen the camera type, housing will come into play.
All types of housing can be made to be vandal resistant, which is a step up from weather resistant. These types of housings are most commonly dome shaped and are designed to withstand unfriendly environments while still providing a usable image.
The selection of features for your security cameras will depend on the application and your individual needs.
To demonstrate the differences in resolution, an old analog camera is about ¼ megapixel, an HDTV screen is just over 2 megapixels, and the highest resolution projected image in movie theaters (4K) is 8.8 megapixels.
While higher resolution cameras may be appealing, these do not respond as well as lower resolution cameras in low light situations. Thus, it is possible to buy more resolution than you need, unnecessarily increasing storage costs while decreasing performance.
There are also cameras with infrared illuminators, which provide their own light source to obtain better images in low light settings. As mentioned, in order to improve low light performance, you will need to sacrifice some resolution.
No matter what the application, there’s likely a perfect security solution thanks to the comprehensive options available. And while the selection process may seem overwhelming, we are here to help. Feel free to browse our CCTV surveillance systems online at SecurityCamExpert.com or call 888-203-6294 to speak with a representative.
From simple cameras that captured video of the area in front of them to advanced cameras that offer exceptional features, our security camera systems have come a long way. The security industry has embraced the high-tech boom, offering sophisticated solutions and attracting more interest from consumers, thus driving home security system sales up over the years. We can only expect this to continue thanks to these security camera innovations, as well as those yet to come.
Video quality was once the defining factor of how advanced your camera was. Since high-definition and improved resolutions have taken care of that aspect, focus has now turned to the range and extent of camera views. Currently, most cameras can offer about 130-degree views, but 360-degree views are already being offered by newer security cameras.
This type of biometric technology enables your security cameras to distinguish strangers from members of the household. By doing so, home owners can be alerted to when members arrive home, as well as when unwelcome guests try to enter.
What was once a special feature has now become a standard function for security cameras. Night vision cameras can see almost as well as they can during the day and are often built to withstand extreme weather conditions, making them ideal for both indoor and outdoor use.
The security room, dedicated to numerous monitors and feeds, is becoming obsolete. Modern technology is now allowing security cameras to be integrated with smart phones, sending the live feed directly to these devices. Users are even able to change the angle of the camera from their device to investigate the area in question further.
Solar Power Integration
Solar-powered camera systems are much more energy efficient and can cut out the complications and vulnerabilities of hard-wired camera systems. A broader range of businesses are able to access security solutions thanks to solar-powered security cameras paired with wireless systems.
This feature is especially convenient for parents and pet owners to check in on their loved ones. Users are able to communicate through the camera to check in with kids or scold unruly pets. This feature can also be used to scare off intruders remotely, avoiding any immediate danger.
Voice commands and voice control has become a staple in our everyday lives, so bringing it into the security realm only makes sense. With voice control technology, you are able to manage your security systems completely hands-free. For example, you can turn on a camera, lock the house, or close the garage by simply activating voice command.
For a great selection of security cameras and CCTV surveillance systems, visit SecurityCamExpert.com. For more information about free CCTV quotes, site surveys, and installation services, please call 888-203-6294.