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CCTV system - determination, purpose, structure system

CCTV system

CCTV system (video surveillance) is for organizations to obtain information about the current state of the protected object (process) by collecting, processing, archiving, storage, display and analyze this information.

Surveillance equipment can be ordered and purchased at a discount to catalog pages:

equipment for IP video surveillance systems,

equipment for HD video surveillance systems,

equipment for analog video surveillance systems.

Application for the calculation of surveillance can be issued for free at:


The purpose of installing CCTV is usually review places that are important to monitor in terms of preservation of property (parking, supermarket shelves, storage, etc.), control the penetration of an object (checkpoints, fences, doors, gates and so on. n.), tracking the movement of objects (stations, offices, businesses, etc.). CCTV (video surveillance, video surveillance) in the modern world, including in Ukraine, has been successfully used to monitor and control processes in manufacturing, in services.

In our practice for the selection of equipment for video surveillance are historically conditioned criteria of quality video surveillance systems:

identification acquaintance - as a familiar person or object can be identified in many circumstantial evidence (pace, type of clothing, the shape of the object), then the low-cost HD cameras and inexpensive video processing device - Digital Video Recorder (DVR);

identification of a stranger - for identification a stranger or object need more videoinformation, as used HD camera with a resolution 1.3-2MP or IP cameras, as well as processing devices - HD DVR or NVR (Network Video Recorder);

read car number - the term "reading car number" we mean characters, alphanumeric characters, and get very detailed video of the object - in this case it is advisable to use IP cameras with a resolution of 3MP and more, as processing systems and record IP video recorders (NVR), and in some cases apply cameras HD-SDI and HD-SDI DVR.

CCTV Camera OutdoorAn important point in the construction of CCTV - define goals and its installation tasks that must decide CCTV system, then the customer and the designer is much easier to define the quality criteria and choose the equipment for video surveillance systems. Naturally, when calculating the CCTV inspection of facilities necessary technical and drafting. Thanks to our experience and the use of modern methods of calculation and modeling, in most cases, we make a preliminary estimate and pick up equipment before the test object, and usually, these calculations do not require significant adjustments after examining the object specialist.

Modern surveillance systems are generally not quite CCTV - (closed circuit television - closed-circuit television system), that have long been not "closed", but rather seek to the outside world through the exchange of data via the Internet and allow not only to observe the object and record the information, and more recently can handle it with the use of pattern recognition algorithms and automatically independently influence the management of the system.

New surveillance systems are built using IP cameras and digital processing systems (NVR) and / or the servers and related software. As devices for viewing video can use smartphones and tablets, laptops, conventional computers are also widely used cloud.

For a smooth transition from legacy CCTV systems using analog cameras HD surveillance technology used (TVI or HD Turbo HD, HDCVI, AHD), which can on existing communications (coaxial cable) significantly improve the quality of video (from 0,3MP go to 2MP).

Often using HD cameras and HD DVR building a new surveillance system - is in many cases a little less than fully digital system based on IP technology.

Equipment for video surveillance systems regardless of the system (analog, hybrid or digital) consists of video cameras (ensure collection of video), processing devices and recording - DVR, NVR, boards video capture, server of application software, hardware for archiving and display units of video (monitor).

Video camera in the enterpriseVideo camera - a device that creates a video stream of light that passes through the lens and it gets on the CCD. Recently used color video cameras with the ability to switch to black and white mode ( "day-night").

 By design, the video cameras can be divided into:

  • Mini video cameras: modular, in the square case, in the cylindrical case, in the non-standard case.
  • Case (standard, professional) video cameras.
  • Dome video cameras.
  • Type Video cameras "speed dome".

Processing and recording devices - video recorders (DVR, NVR), video capture boards, video server - can handle video streams received from several video cameras to analyze video streams, record them and publish in a given format to monitor and LAN or WAN for remote viewing. They also allow you to record (with playback) image (either directly from the camera and from processing devices). Current surveillance systems are usually used for the accumulation and storage of conventional video storage on hard disk drives (HDD), and when a large amount of information - drives combined into RAID. 

Video surveillance - in the computer, tablet, smartphoneAs information displays for video surveillance is used for computer monitors, as well as by the application or web-browser organized viewing video on a computer screen, mobile phone. The most popular applications for video surveillance for Android and iOS.

A very important component of any surveillance environment is the signal - cable network and power subsystem. When building a surveillance system using IP technology cabling system is built on the principles of local area network (LAN) and can use different physical environment for information transfer - a copper cable of the type "twisted pair" optical cable, wireless network WiFi etc. To power the cameras can be used traditionally power cable, but recently gaining popularity technology POE (power ower ethernet), where nutrition and data is transmitted over a single cable type twisted pair. Transfer video from analog or HD camcorder to the device processing traditionally held coaxial cable with characteristic impedance of 75 ohms, such as RG-6 or RG-59, but the most progressive cable is the use of "twisted pair" with devices video transmission over twisted pair. 

Often the quality of the components and materials used cabling and equipment supply depends on the quality surveillance system as a whole, as end devices - cameras, DVR, NVR (unless, of course not to use equipment such "noname") have very good options - such applicable we equipments such famous brands like Hikvision and Dahua. And in fact in the video transmission over a distance and there are engineering problems in building high-quality video surveillance system that is at the forefront in the design and implementation of surveillance systems comes the choice of transmission medium, competent calculating wired or wireless network using the ever-increasing resolution cameras and processing devices CCTV systems .

Our Company ELVIS offers a full complex of services in realization CCTV projects. Engineers of our company will pick up the system optimum approaching your enterprise, and the price range and working indicators of the equipment offered by us will satisfy the most pretentious customer.

We hope that the customer, regardless of the volume of work performed appreciate the competence of our company, professionalism and individual approach.

Application for the calculation of surveillance can be issued for free at:

The system of surveillance can complement access control system.