Reduce SWaP and Centralize Control in a Video-Centric System
January 30, 2015 | BY: Paul DavisDownload PDF
Video-centric systems are used to capture specific video data and switch the video data to displays for viewing, and store for later analysis. The basic video-centric system consists of multiple video sensors (typically cameras), multiple operator displays and storage to capture the video. A video-centric system may be stationary or mobile. This paper gives a brief introduction to stationary systems with further focus on mobile applications.
A Stationary Video-centric System
Stationary video-centric systems can be found in fixed locations like police stations, airport or train station security. The environment of stationary systems is modest temperature and virtually no shock or vibration. We have all seen an example of these systems on TV, the Web, or first-hand.
These systems are often quite complex. For example, think of all the cameras at an airport, observing customers and employees in multiple locations. All those video inputs from many different types of cameras may have different video formats (HDSDI, DVI, and CVBS) and different cabling (copper vs. optical, multi-wire, single wire). Different camera types have different functions and hence come in different video formats and physical cabling. These differences must be accommodated. Once the wiring is accommodated, the video format must be converted to a suitable format for the available displays. To do this, a switch is needed to distribute the converted video to various displays for event monitoring by security personnel.
Since a person monitoring events cannot look at everything at once, the video feeds must be quickly and easily switched from location to location as needed. Different video feeds may also be combined together to monitor various events and locations at once. All this data must then be available for post event analysis, especially at times when evidence is later required.
Mobile Video-Centric Systems
All of these video functions and features are also often needed in mobile platforms, including helicopters, fixed-wing aircraft, ground vehicles, and ships. These vehicles can be military or law enforcement oriented. In any case, their mobile video-centric systems must endure harsh environments with wide temperature ranges, high shock and vibration, and other difficult parameters like sand & dust, salt fog, high humidity, and EMI constraints.
Download the white paper to learn more about size, weight and power (SWaP) and control considerations as well as Video-Centric system configurations.