KEYWORDS: Video, Cameras, Databases, System integration, Video surveillance, Imaging systems, Signal processing, Information security, Software development, Video processing
The article presents selected results of research conducted by the consortium under the implemented project for national defense and security on “Video Signals Integrator" Acronym – VSI. Project Leader: Warsaw University of Technology. The consortium: Police Academy in Szczytno, Atende Software Ltd., VORTEX Ltd. No. DOB-Bio7/01/02/2015 funded by the National Centre for Research and Development. The essence of the Video Signals Integrator is to acquire and process signals from multiple sources: existing monitoring systems based on analog cameras, modern systems based on IP cameras, different types of individual cameras. The efficient functioning of the device depends on the properly prepared Configuration Database of the Central Video Integrator System. The configuration database contains information necessary to operate the system by users, both in the scope of authorizations (data of users who can use consoles of particular types) as well as sources of streams processed by the system. It also creates the possibility of grouping streams according to their source. This option allows the user to identify the sources of a given signal and the corresponding response. The functional requirements were taken into account in the development of the concept of Configuration Database. As a result of the research, a design of the pilot version of the VSI system will be created, along with complete server software and a full-sized user console.
The Video Concentration Device (VCD) is the component of the Video Signals Integrator (VSI). The whole VSI is a complex hybrid system containing hardware, firmware, and software components and can integrate and serve video signals from many sources. The VCD is a portable device capturing video signals in various formats from different sources, and transmitting them to the VSI server. Due to high complexity, VCD is equipped with a diagnostic system providing the possibility to remotely manage it. Its functions include the update of the firmware and software, starting the special diagnostic version of the firmware and the software, low-level expert access. In most cases it should eliminate the necessity of the on-site expert’s intervention, except in case of hardware failure
The paper describes the prototype implemetantion of the Video Signals Integrator (VSI). The function of the system is to integrate video signals from many sources. The VSI is a complex hybrid system consisting of hardware, firmware and software components. Its creation requires joint effort of experts from different areas. The VSI capture device is a portable hardware device responsible for capturing of video signals from different different sources and in various formats, and for transmitting them to the server. The NVR server aggregates video and control streams coming from different sources and multiplexes them into logical channels with each channel representing a single source. From there each channel can be distributed further to the end clients (consoles) for live display via a number of RTSP servers. The end client can, at the same time, inject control messages into a given channel to control movement of a CCTV camera.
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