Using RVi IP video servers in IP video surveillance systems.
Using RVi IP video servers in IP video surveillance systems An IP video server is a device designed to digitize and compress an image received from an analog video surveillance camera and transmit this image over networks using the TCP/IP protocol. RVi's product range includes two IP video servers: single-channel — RVi-IPS125 and four-channel — RVi-IPS4100.
There are two main areas of application of IP video servers in projects. IP video servers are used when it is impossible to select an IP camera for a specific task at the facility when designing an IP video surveillance system. For example, among IP cameras you cannot find such a unique camera as RVi-65Magic, which provides color video transmission even in poor lighting conditions. Or among IP cameras there are currently no solutions for perimeter video surveillance with ultra-long IR illumination, such as the RVi-169LR and RVi-169SLR cameras. In this case, analog cameras can be used together with IP cameras, digitizing the video signal via an IP video server. This will allow you to create a single hybrid video surveillance system with a single control interface and a single video archive. The second area of application of IP video servers is the modernization of an existing analog video surveillance system that suits the customer in terms of quality, but it needs to be supplemented with IP cameras. At the same time, the entire video surveillance system must have a single video archive and a single control interface. IP video servers will also help solve this problem, with the help of which signals from analog cameras will be digitized and transmitted to IP camera processing and control servers.
RVi IP video servers digitize analog video surveillance cameras at a speed of 25 fps and with the maximum resolution for analog cameras — 720×576. At the same time, RVi IP video servers support the ability to locally record to an SD memory card, which will allow you to restore events that occurred in the camera's field of view even if the communication channel between the IP video server and the recording server was broken.
From the point of view of installation and design, RVi IP video servers are also very convenient. Firstly, both the single-channel (RVi-IPS125) and four-channel (RVi-IPS4100) video servers support power supply via a network cable (PoE), which significantly simplifies the installation of these video servers and reduces the number of required cables due to the fact that video and audio are sent to the surveillance post from the IP video server via one network cable, and power is supplied to the IP video server. At the same time, RVi IP video servers comply with the ONVIF standard, which allows them to be used in any projects (including those that have been implemented but require expansion), where the control software also complies with the ONVIF standard.
The use of IP video servers has a rather limited scope of application, but it is IP video servers that are in great demand among customers during the transition period from analog to digital video surveillance, when many projects are made «hybrid». RVi IP video servers today have sufficient functionality and ease of use for using them in projects of any complexity and any scale.