“World-class stadium security systems comprise a number of critical components, including realtime monitoring, alarm and event control, graphic mapping and recording and playback,” says John Loftus, MD of Norbain SA. “With the installation of Samsung’s SNR-32A/16A/9A Network Recorder and high-performance PTZ (point, tilt, zoom) SNP3300 cameras, this particular stadium is now geared up for optimal recording clarity and convenience.”
The SNM-64P Network Manager is an integrated management programme for multichannel purposes which, when integrated with Samsung Techwin’s DVR and network products, makes it possible for up to 64 cameras to be monitored simultaneously on one monitor. It supports various image division modes, allowing for easy screen configuration, screen security management, remote control supports, realtime screen surveillance and control of PTZs, bi-direction audio and the relay of each piece of equipment.
Further, says Loftus, it can control user management by group, using a range of authorisations.
The linking of the network manager’s alarm and event control feature to an alarm control station makes monitoring even simpler through the use of pop-up images and lists to flag events or alarm signals in realtime. Added to this is the graphic map image support facility, designed for the surveillance of remote and potentially risky areas, and you have a system that takes its place as one of the best in the world, he asserts.
Recording, playback, search and back-up
Not only is the system capable of recording up to 400 fps of high-resolution images in realtime, but through the use of MPEG-4 and JPEG compression, it allows users to select the compression algorithm best suited to resolution, picture quality and frame rate requirements. In keeping with the most exacting of surveillance requisites, it supports a selection of recording and simple search modes. To this end, it also boasts auto recover, external NAS (network attached storage), pre- and post-recording, user IP filtering and Login Packet Encryption capabilities.
Further, Loftus says the SNM-64P is easily able to locate and play back image data using calendar or timeline criteria. Data storage and backup is also simple, through a PC.
Cameras
The stadium’s eyes comprise six Samsung Techwin SNP3300 cameras which cover the main 100 m walkway into the stadium. According to Loftus, Samsung’s PTZ dome cameras were chosen by the client who elected to replace the stadium’s brands with products that would guarantee excellent picture quality and user-friendly software.
With a total zoom capability of up to 240X (optical = X30, digital = X8) and a focusing distance of 3,3~99 mm, the stadium has taken its ability to detect crowding and crowd congestion to a new level.
“The cameras have a high horizontal resolution of 520 TV lines, which ensures clear identification of subjects, even at a distance. Through the use of an intelligent filter-switching (ICR) Day & Night feature, they are able to enhance
low-light imagery into high-resolution colour or black and white, ensuring clear recognition and visualisation of objects even in the dark. This capability is supported by their ability to eliminate noise and ghosting.”
As a result of their sophisticated pixel-level histogram analysis technology, the SNP3300s are able to provide 52 dB of wide dynamic range (WDR) – according to Loftus, this is 126X better than conventional wide-dynamic ranges.
The expansion of the automatic white-balancing range makes it possible to view objects clearly in the most challenging places and lighting conditions, from building lobbies and airports renowned for backlighting interference to tunnels and motorways illuminated by sodium lights. What is more, the new domes allow the user to specify up to 128 settings of monitoring area as well as preferred times and methods for automatic monitoring. In the interests of increased monitoring convenience, the cameras’ image-hold feature makes it possible to maintain an image while moving in the preset area.
With the use of its motion detection feature, the SNP3300 enables automatic recognition of subjects under surveillance and the subsequent generation of warning message or alarms. In this regard, up to four detection areas can be specified. There is also a convenient OSD menu and handy digital flip component to enable the automatic tracking and monitoring of moving objects.
Additional benefits include its ability to save up to 70% recording capacity of a DVR (digital video recorder) – great news when it comes to cost-saving – and its hardiness. “Able to withstand fairly extreme degrees of heat, cold and humidity, this technology will satisfy the most stringent international stadium security requirements,” he concludes.
| Tel: | +27 87 802 2288 |
| Email: | [email protected] |
| www: | www.reditron.co.za |
| Articles: | More information and articles about Reditron |
© Technews Publishing (Pty) Ltd. | All Rights Reserved.
printer friendly version