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FAQ FAQ- Видеонаблюдение - Video- Видеорегистратор - Video - Домофон - Intercom - Видеодомофон - Video - Сигнализация - Alarm - Контроль доступа - Access Control - HikVision - HikVision - GeoVision - Geovision - DigiNet - DIGINET - ILDVR - ILDVR - Axis - Axis - Jablotron - Jablotron - Optex - Optex - Infinity - Infinity - Твист - Twist - EverFocus - EverFocus - Commax - Commax - Dori - Dori - Texe - Texe - Spotter - Spotter Ссылки Linksнаша ссылка Our reference |
. Directory of security systems and video surveillance. . Ukraine."" . The "Chestnut" for several years now occupies a leading position in the market of security systems and video surveillance. , , () . The main directions of our activity is the sale and installation of video surveillance systems, access control, alarm and intercom (video). , . We are constantly improving methods of work with clients, finding a compromise between the needs and interests of our customers. . For every client we have an individual approach. , , . Our experts pick the best options for solving the problem, both in terms of price, and in terms of functionality and quality. ILDVR , HikVision , Spotter , GeoVisio n We recommend that video surveillance systems ILDVR, HikVision, Spotter, GeoVisio n DigiNet / . DigiNet as the best option for price / quality ratio.
, 90% , - . - , , , . It is known that 90% of the information perceived by man runs through the eye, video surveillance system - is no exception. Videoonablyudenie - this is an area where in recent years, the most significant changes are being introduced modern scientific methods of analyzing video data, increases the speed and quality video recording. , , - , . Video surveillance is a digital system is a hardware-software complex intended for the organization of technology and television. , - . Allows you to organize the video as a local as well as the geographically distributed sites. () Video surveillance is an electronic device - capture card (ottsifrovki) PC ( DVR ) . () . video signal, and mounted on a PC compatible computer or video (DVR). Surveillance is based on one basic principle - the digitization hardware (software) compression coming from video cameras and microphones for an analog signal into digital code, and its further processing program. , . Today, digital video presents a number of features that make a difference against the background of its aging analog systems. , , . Modular construction of video surveillance system allows it to freely build up, thus ensuring the connection of additional cameras. , , , . Due to this, video is able to operate unlimited number of cameras that are very important for the global video surveillance systems based in large enterprises. . Another feature of digital video surveillance system is its high productivity. 25 704 576 . Video allows you to record video from an unlimited number of cameras at speeds up to 25 frames per second with a resolution of 704 x 576 pixels. , . In addition, video provides high speed access to video and high quality video playback. - , , , . The software system allows a network of distributed local surveillance systems for their further centralized administration and control - the operator of video surveillance system can simultaneously display on any monitor, client location, an image with any of the cameras connected to a digital video surveillance system. , , . Depending on the requirements for the video surveillance system, consisting of, and may include other devices on the alarm and access control. , . Another important feature of the system is that the video surveillance system can be controlled in Russian. : Video includes such devices:
Audio intercom, , , . , , , . Audio intercom is the most simple, but effective enough devices to ensure safety of apartment, porch house, office or country house. Audio intercom is a two-way intercom device consists of calling the panel, which is mounted, usually on the outside of the door and the tube inside the subscriber premises. . When you click on the calling panel tube produces melodic trill twice. , . That is, when using the intercom audio is no longer necessary in the usual traditional elektrozvonke. , , . : All audiotrubkah installed inside the houses, there is a button opening elektrozamkov. For multi-system characteristic feature is: Call the number of apartment . opening access doors. Video, , "", , . Video will help you protect yourself, your family and your house from bad to you people, unwanted "guests" of suspicious persons, as well as make some comfort in your daily life and perfectly fits into the interior of your home or apartment. , , .. It is possible the use of video in the office, agencies, high-security facilities, etc. - , / . Video - This kit, which consists of calling the monitor and audio / video panels. / - , () ( ), , , , ( "" ). Audio / Video panel - a device body which is made of metal (vandalozaschischenny) or plastic (office version), containing a miniature TV, call button, microphone, speaker and infrared lights (to be able to "see" in the dark). / (""), . Design features of some audio / video panels allows them to install on wall or door as the mortise (utaplivaemym "), and way overhead. - , 4" (10 . ) - , , , . . - . , . / 4- . : - ( ). . "", , , , . "" , , . , , , , , , . Monitor video - this device has a 4 "inch (10 cm diagonal) flat black and white screen, the receiver for the negotiations, the button to open the lock if there is a remote controlled lock. Some models of video in addition have a button interkoma. Intercom - communication with more tube. interkoma Additional handset also has a button to control the castle. The link between video calling and audio / video panel is carried out using 4-wire cable. video works as follows: a visitor presses the call button - to display video are distributed melodic call and switches screen (in standby mode is turned off). On the screen the video image appears to your visitor. If the "guest" standing in front of the door, you sign, you will, without any obstacles to open the door to him. If the "guest" you are not familiar, then with the help of negotiating the tube, you can talk to come, constantly watching on-screen video for his actions. If you wish, at any time, you can assess the situation before the front door by pressing the corresponding button on the video monitor, and by lifting the handset negotiating more and hear what is happening. , , . There are many varieties and video equipment, differing from one another, different functionality. . Also, in some models of video monitors, it is possible to connect external video camera or memory block. - , . Access control systems - are complex and multifaceted, electronic security systems. , . , ( ) , , , . In fact, the conventional electro-mechanical door lock or a mechanical turnstile with porter are also a kind of access control systems. First of all, electronic access control systems allow you to access certain persons in certain facilities (monitoring of their movements), and restrict the access of persons not entitled access to appropriate buildings, floors, rooms. , , , , , . More complex systems including, as a rule, one or more computers that can control access based on the current time, day of week and holidays. : , .. Such a system could keep the minutes of all the events: a specific user passes through a door at a certain time, attempted unauthorized access, etc. , . The software provides various kinds of reports about events that occurred in the system for a certain period of time. , , , ( ) , .. In addition, different systems may have a wide range of additional functions, such as protection against unauthorized access to the premises through the transfer of the access card (Key TM) to another person, a graphical representation on a computer screen to display the plan object disturbing situations, etc. , , ( , ..) , . In addition to its direct function of computerized access control system can be used to automatically track time, control of passage given Route guard, control various devices (sirens, lights, etc.) depending on the events occurring in the system. . Many systems allow detectors security and fire alarm and generate an alarm or control system surveillance. , ( ) . For example, when attempting illegal entry to the premises user (presentation of a system of illegal access cards) to include your computer system and video record the actions of the attacker. ( ). For organizations with large numbers of staff and visitors in the access control system can be set up jobs on the operational statement Pass (card access). , - . Data on visitors or new employees are introduced to database access control system are determined by their credentials for access to certain premises and handed over the card-access. , , , . Duration of validity of the card access may be limited, and even in the case of forgetfulness visitors, after a certain time, the card becomes useless piece of plastic. . , , . In more complex systems can be manufactured photo holder card access, and together with the required text in one way or another be on the card. The image is stored in the database and can be plotted on a computer screen, for example, upon presentation of an appropriate card reader at the entrance turnstiles. : There are the following access control system:
, , . Often, the effects of fire and theft, as well as the loss falls heavily on the shoulders of not only the victim but also to society as a whole. , . That is why, no one doubts the usefulness of technical means for the security and fire alarm systems. - . The alarm system - designed to reliably detect unauthorized access to protected objects, and activate alarm systems. - , , , , , . ., . Fire alarm system - designed for rapid and reliable detection of incipient fire with the help of recognition of the phenomena that accompany a fire, such as heat, smoke and invisible products of combustion, infrared radiation, etc., and enhancing public address system. - - , . Fire alarm system - a universal electronic system, including system security and fire alarm systems. ( ) , , , GSM-. The main devices are Detectors (sensors), PPC, sirens, GSM-dialers. - , . Detector - a device, forming a specific signal for the measurement of a controlled parametray environment. , , . . These parameters can be heat, vibration, changing the characteristics of the electromagnetic field, etc. : Detectors structurally divided into:
- (, ). The sensor only monitors a parameter (eg, with increasing temperature magnetic properties of the material lost in the sensor). , . The detector contains a sensor or group of sensors and signal processing scheme and the decision on extradition signal anxiety. : Alarm sensors on the principle of action are divided into:
: There are the following components of security or fire alarm:
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