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Integrated mobile surveillance

When it comes to mobile surveillance options, there are many product choices in the market, each with their own unique selling point. Unfortunately, an effective mobile solution is made up of many parts and all of these need to be seamlessly integrated if the solution is to deliver the value required.

With the development of 3G/4G and latest wireless networks, the era of truly mobile video surveillance is now possible. Kedacom, represented locally by Forbatt SA, is constantly incorporating new technologies into its products to expand the scope of mobile video surveillance. Some practical applications of Kedacom mobile video surveillance systems have been in crisis management, combat commands, public safety, security patrols, private security and in industrial sectors.

The Kedacom Vehicle Mobile System (KVMS) contains powerful video processing capabilities and robust mobile network ­adaptability. It incorporates in-vehicle NVR, PTZ cameras, fixed cameras, a control PAD, vehicle-mounted brackets with shock absorbers and a device box. This system can be deployed in any patrol car, fire truck, emergency vehicle, bus and similar vehicle. The video and audio can be viewed by those in the vehicle, or quickly and securely uploaded to a command centre.

Mobile cameras

There are three basic camera ranges Kedacom offers for mobile surveillance. The dual-sleeve vehicle PTZ IR camera can operate consistently with its shock-proof design. The 360° camera rotation function and 20x optical zoom allows for monitoring of vast areas. This camera is equipped with a super low illumination sensor with which it can acquire images in colour at only 0.003 lux. Further, 120 dB ultra WDR is supported for light distribution for consistent, high quality imaging. The Infrared functions at distances of up to 200 metres at night.

The Magnetic PTZ IR camera can be mounted on the top of vehicles via five powerful magnets in its base. The high capacity built-in battery delivers 8-hour long operation, while its embedded Wi-Fi module requires no cables. A conventional vehicle can be transformed for surveillance with high-quality video acquisition and transmission capability simply by attaching the magnetic camera. With four embedded IR light units and a super low illumination sensor, distances of up to 60 metres can be monitored at night.

There are also a variety of fixed cameras which can be installed within or outside vehicles. These fixed cameras feature IR and a wide Field of View (FOV) capability. They are rated IP66 for weather protection and have a vandal-proof design, among other characteristics. An embedded high-fidelity microphone allows the cameras to acquire sound signals within a 5-metre diameter.

Transmitting video and data

Conventional video surveillance systems frequently experience difficulties when transmitting data through 3G/4G and Wi-Fi networks because of issues like data packet loss, high latency and jitter. To overcome these shortcomings, Kedacom developed the Kedacom Wireless Transmission Protocol (KWTP).

This protocol constantly monitors the network and dynamically adjusts key internal settings, enhancing video streaming (data packet size and transmission frequency) in real time. This allows KVMS to provide continuous and stable real-time video streaming and keeping communication between the command centre and vehicle consistent and reliable.

Storing and viewing

The KDM2410M-V21 is a vehicle-mounted device which can either emulate an NVR to view IP-based camera streams, or it can be used as a wireless encoder for analogue camera access. It can connect, manage and record videos from up to 4 IP-based and analogue cameras simultaneously.

Cameras are connected either through its combined aviation plug or embedded Wi-Fi. A stable physical connection is assured with an aviation plug even when vehicle is being driven on bumpy roads. The combined aviation plug not only supports Ethernet and analogue cameras interfaces, but it can also feed power to all cameras.

The KDM2410M-V21 has a compact design which can be installed in the place of a vehicle CD player, which is also aesthetic and saves space.

These products are only the start of the full Kedacom mobile solution. The company also offers in-vehicle viewing and controlling of cameras. In addition, a full backend ­solution for command centres rounds out the Kedacom offering.

For more information, contact Forbatt SA, +27 (0)11 469 3958, sales@forbatt.co, www.forbatt.co

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