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Analogue Systems Analogue systems are the most common system in the market and can be installed and maintained as a cost effective solution for basic requirements. Recording and monitoring on such a system is either done on a computer based platform, or by an embedded recorder, ranging between 4 and 32 channels. Even though analogue systems is cost effective, it is extremely limited on performance, with the average high resolution camera providing resolutions between 700 and 750 tv lines (calculate to about 0.56 mega pixels). The communications infrastructure (cables used to transmit signals between) normally consist of co-axial copper cables, transmitting the video signal of only the camera connected to it. All other services, such as power, audio and control features requiring additional cables such as power ripcord, multi-core, or mylar cables for full operation. Analogue systems can also use communication media such as CAT cable or fiber cable to transmit video over further distances, or to prevent surge damage in lightning prone areas.
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IP Network Based Systems IP systems are much more versatile than analogue systems, and can be custom designed for optimum performance in any given condition and for any requirement. There is a wide selection of cameras and communication media, with cameras starting at 720P (1 Megapixel) and currently at 12 Megapixel. Better cameras are continuously developed with ever increasing features and performance, allowing for more specialised use by various industries, such as security, mining and manufacturing. Communication media can consist of one, several or all applications such as CAT5, CAT5e, CAT6, fiber or wireless systems. Ip systems also allow for in depth system engineering, such as routing of video, audio or integration signals between input, output and recording devices, as may be required.  Ip furthermore allows for all services to be provided over one copper connection (CAT cable), such as video, audio and control signals, together with power supply (PoE). The downside with ip systems, in comparison with analogue, is that ip is much more costly to purchase, and maintain. Ip also require a higher qualified (and paid) technician to install, setup and maintain such a system, as all devices require an ip address, correct network settings, and sometimes protocol settings to become, and stay operational. Should an existing analogue system be upgraded to an ip system, such ip system cannot work on the old co-axial infrastructure, and will require a completely new network based communication infrastructure.
HDTVI Systems HDTVI technology  was cleverly developed to allow for digital (”megapixel”) communication over a copper co-axial infrastructure. This means an existing analogue system can simply be upgraded by replacing all, or some of the analogue cameras with digital HDTVI units. When doing a complete or partial upgrade, the recorder needs to be upgraded to an HDTVI device. HDTVI currently provide cameras delivering 1, 1.3 and 2 Megapixel images, with new models under development. More advanced models in the HDTVI range also allow for transmission of video, audio and control signals over the same co-axial cable. Due to the HDTVI range communicating over a co-axial infrastructure, it is extremely cost effective to upgrade an existing analogue system to digital technology. Simply remove the old camera, install the new camera and switching on. (we propose for old cables and power supplies to be tested before upgrading an existing system). Such systems can also be imported into monitoring or control room infrastructures and video walls.
Hybrid Systems Hybrid technology allows for integration of analogue and ip into one system. This means you will be able to connect a limited amount of ip cameras to a analogue dvr, which is ideal for general monitoring with one or two high resolution cameras as required.
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POS Overlay & LPR Text Overlay: When working with point of sales, scales or any device with a serial output (output for a printer), transaction data can be displayed over the video footage of the camera. This will allow for an operator to compare the products monitored with the cameras against what is being recorded by the system or the cash point attendant. License Plate Recognition: The LPR function of a cctv system will allow for all license plates passing the capture area to be logged into a data system. This can assist in monitoring access into the secure area, and as advanced warning, should there be an alert on any one registration number. Both these systems allow for data mining and tracing of transactions.
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Monitoring Solutions Most dvr & nvr systems allow for network communication, and can therefore be monitored remotely or be integrated into a control room. Such monitoring or control room interface can be done locally on site, or remotely from anywhere in the world.
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