Security Camera Systems
Providing security solutions to a high risk world.
Adelaide Home Control is an accredited partner with Dahua Technology, providing the backing of one of the fastest growing security technology companies in the world. Our team of technicians receive the latest training direct from Dahua, to ensure we maximise the experience from every Dahua product installed.
Providing up to 12 megapixel solutions for residential, commercial, retail and corporate customers, with an extensive range of products to suit all budgets and applications.
Security Camera Technologies
The primary platform for security camera installations is internet protocol (IP)
Image Resolution – All analog video cameras use the NTSC analog video standard, which was created in the 1950s. No matter what the camera’s manufacturer claims the image quality is, it is still being transmitted and recorded using this standard. It is an absolute cap on image resolution that you can’t get around. On the other hand, IP cameras come in a broad range of resolutions (measured in megapixels, or MPs) from which to choose depending on your specific requirements. For example, a 1.3 MP IP camera (generally the lowest resolution camera on the market) has almost 4 times the resolution of an analog camera. With this added resolution, faces become clearer, license plates become easier to read and larger areas can be covered by a single camera.
Scalability – Generally, analog cameras run a coax cable transmitting the video to a VHS recorder, which records straight to video tape or a DVR (Digital Video Recorder), which turns the analog signal into a digital signal for storage and review. The problem with this is that the VHS or DVR has a finite number of ports that cameras can be plugged into. Once you max out that number of ports, you would need to either buy a new VHS or DVR with more ports or a second, separate machine to run the additional cameras. IP video networks have the clear advantage when it comes to adding new video cameras. First, since IP cameras connect to the IT network, there is no limit to the number of cameras that can be connected. Second, the need to run a cable from the camera to the DVR is eliminated – you only need to run a cable to the nearest network switch. In addition, in IP-based systems the video is recorded using NVRs (Network Video Recorders), which use multiple hard drives and often employ a backup technique know as RAID (Redundant Array of Independent Disks) to disperse the data across multiples hard drives for data safety and efficiency. Finally, since the data is being transmitted digitally, it can be transmitted across the internet, allowing for multiple locations to utilize the same NVR, meaning that a new video system does not need to be set up at each site, allowing for scaling beyond your existing facility.
Ease of Installation – Many find it hard to believe but at this point IP video security systems are actually quite easy to install. Today, most IP cameras are actually plug-and-play, the same way your computer’s webcams are. In addition, the cabling is easier as well. With an analog camera, which has a single cable that can only transmit its video signal, it will also require a separate power cable and, if you want added functionality such as PTZ (Pan, Tilt, Zoom) controls for the camera you’ll need another cable for that. However, IP cameras use a single cable that can be used for everything. Using PoE (Power over Ethernet), IP cameras can be powered through the same cable that transmits the video signal and any PTZ commands. Finally, as mentioned above, since IP cameras run on the network, you don’t have to run the cable all the way back to the DVR. Instead, you only need to run it to the nearest network switch.
Analytics – Historically, analog CCTV systems were very reactionary. They used human monitoring to catch events in real time and stored past video feeds for review to reconstruct events after they have happened. When monitoring, someone would have to sit at a bank of monitors and watch the screens for any situations developing. This was a very time and labor-intensive activity and was dependent on human infallibility, which we know doesn’t exist. Occasionally the person watching the monitors would miss something because he or she was looking at the wrong screen at the wrong time or just suffering from fatigue after staring at the screens for hours and hours. Then, with the advent of Video Management Systems (VMS), video security became pro-active. Software was introduced that could monitor all the video feeds simultaneously, using analytics to detect potential situations developing before they actually occur and trigger alarms that humans can respond to accordingly. These analytics include facial recognition, loitering, line crossing, object taken and many more.
Zooming on a HD image allows much more scope to achieve a higher level of detail, which allows any particular camera to cover a wider area, knowing that the ability to zoom on playback, is now available, whilst maintaining quality.
All CCTV applications rely on detail for any images to be useful, whether is be facial recognition, a number plate or sign writing on a car or van.
Hybrid recorders are also available. This allows for camera inputs to be allocated as analogue or SDI, allowing for a scaled approach to upgrading existing analogue CCTV systems.
HD-IP CCTV Systems (High Definition – Megapixel)
HD-IP CCTV is an emerging technology that is providing a number of benefits to users, operating on a standard network infrastructure using ethernet cable.
As with HD-SDI, it is HD, but is capable of much higher image resolutions. Full high definition (1080p) has a resolution of 190 x 1080 pixels, IP cameras are capable of 10 megapixel images equivalent to 3648 x 2752 and higher.
There are some limitations including quality of images at night and latency, however, there are other major benefits that give IP CCTV the thumbs up, of course, depending on your application.
Major benefits of high definition or megapixel systems include :
incredible images allowing for zooming, maintaining quality
the ability to utilise existing network infrastructure, reducing installation costs
POE is used, eliminating power supplies, reducing maintenance costs
access to 180 and 360 degree cameras
remote accessibility for viewing and configuration
less cameras required to cover a larger field of view or viewing area
future proofed installation
ability to integrate with 3rd party devices for powerful control over your system, not only for security
no need to purchase additional recorders to be able add additional cameras when maximum inputs have been exceeded
distance issues are eliminated, IP cameras work just like a computer on your network, so multiple sites are not a problem
capabilities for reliable wireless where cabling can be an issue
IP cameras are more intelligent including video analytics
The image on the left shows the car travelling along the road in a raw image. The image on the right shows the variance between the analogue camera (VGA) and a series of megapixel cameras with a variety of resolutions. The images speak for themselves.
The image on the above is taken from a 180 degree HD-IP camera, covering a car park. The smaller image of the truck with the signage wallmart is the zoomed in version of the same image. This demonstrates the zoom in capability of the higher megapixel cameras.
The image to the left demonstrates the actual capabilities of each type of technology, comparing analouge, HD-SDI and a 4 Megapixel HD-IP camera
Verint Nextiva - Actionable Intelligence
As a leader in networked video security, Verint® provides a single source for end-to-end video surveillance solutions. From cameras, encoders and intelligent NVRs, to video management, analytics and PSIM software, we help cover your security operations.
Large, small, analog, IP, wired or wireless, Verint video solutions can help improve video networks. As the trusted name in video surveillance, Verint solutions help protect investments, enhance security and reduce operational costs. Multi-tiered support programs, expert services and the award- winning Nextiva® video portfolio represent just the beginning of ways Verint transforms video into value.
Companies across the globe trust their vital video surveillance operations to Verint. This reinforces the fact that Verint offers the right solutions and the peace of mind you need, knowing that when you choose Verint, you have one less thing to worry about.
Nextiva, the industry’s most comprehensive IP video security portfolio, features a flexible, open architecture for rapid deployment, reliable operation and lower cost of ownership.
Video encoders, IP cameras, and intelligent NVRs that capture images from practically any stationary or mobile location, industry-leading wired and wireless devices, and unprecedented analytics- enabled edge device technology are just part of the Nextiva suite of products.
With Verint, you can create comprehensive video surveillance solutions that meet the needs of virtually any industry, in any location. Retail, Banking, Transportation, Corporate Enterprises, Hospitals, Government Buildings, Military Bases, Ports, Airports, Tunnels and Bridges.
Where there’s a surveillance need, there’s a Verint solution.