Optical detector IO 212-2 «VORON-2M-S-RX»: the choice is obvious.
Modern perimeter protection is a key element of the overall security system, which is usually implemented using various types of security systems. Currently, radio beam and radio wave systems, systems with fiber optic cables, vibration-sensitive systems with sensor cables, active beam IR sensors, passive IR sensors are widely used for perimeter protection. The perimeter security system must meet such requirements as reliability, noise immunity, low visibility and cost-effectiveness.
It should be kept in mind, however, that radio beam and radio wave systems create significant electromagnetic radiation, which can be detected using technical means. Active beam IR sensors can also be easily detected using special technical means.
Among vibration-sensitive systems, detectors operating using an electric cable (for example, with a triboelectric effect) have found wide application. However, perimeter systems with fiber optic cables are now becoming increasingly widespread.
Compared with electrical analogues, systems with fiber-optic cables have a number of undeniable advantages: absence of electromagnetic radiation, insensitivity to electromagnetic and electrostatic interference, possibility of using extended lines, high reliability of equipment due to impossibility of burnout from electrical interference, no need for power supply, longer service life of sensors. One of the strengths of perimeter systems with fiber-optic cables is the possibility of their use where high requirements are imposed on fire and explosion safety of protected facilities. The use of sensors based on fiber-optic cable and optical reed switches allows using them without power supply, thereby eliminating the possibility of sparking. Insensitivity to electromagnetic and electrostatic fields makes it possible to use them at facilities with strong electromagnetic radiation, such as electrical facilities (power plants, electrical substations, overpasses with electric cables), and at facilities with strong radio radiation (radio transmitting centers, etc.). The sensitivity of such systems is high due to the use of interference effects in the fiber.
A relative disadvantage of a system with fiber-optic cables is the complexity of installation, but due to the rapid development of the telecommunications sector, the equipment required for installation is widely available. In addition, there is already trained qualified personnel for working with fiber-optic cable lines.
There are several types of systems with fiber optic cables:
a) zonal type systems, in which one core of the fiber cable is an element sensitive to vibration and mechanical impacts, while the length of the sensitive section is selected based on the requirements for the size of the protected zones and is 250-1000 m;
b) distributed type systems, in which, in addition to information on vibration impact, there is the possibility of localizing the impact point with an accuracy of up to a few meters.
Zonal fiber-optic sensing elements typically use dual-arm or multimode speckle interferometers. Multimode fiber detectors are proven and fairly simple in terms of hardware. However, as the length of the protected perimeter increases, the number of zones increases, and, consequently, the number of fibers. Therefore, with a perimeter length of more than 10 km, the installation of the linear part of the system becomes more complicated.
In the second type of fiber-optic detectors, only one fiber core of a single-mode cable is used to protect the entire perimeter. At the same time, due to the reflectometric principle of operation, it is possible to localize the impact point with an accuracy of up to several meters with a maximum line length of up to 60 km. This system is complex in terms of hardware, but it does not require an increase in equipment with an increase in the perimeter length and is economically justified for several kilometers. The system has one significant drawback: damage to the fiber-optic cable actually leaves the perimeter section after the damage point unprotected.
For reliable operation of fiber-optic systems, complex signal processing algorithms are used, the main part of which is the module for classification and detection of alarm events. At the same time, the software must be able to train the system on test events during initial setup and provide a mode of additional training during regular operation at the facility.
Of the many perimeter security systems, it is difficult to single out one that would be universal, meet these requirements and take into account the specifics of Russian operating conditions associated with significant daily and seasonal temperature fluctuations, strong winds and snowfalls, heavy rains, etc.
One of the best today in terms of price-quality ratio is the new perimeter detection device with a sensitive element based on fiber-optic cable — optical detector IO 212-2 «VORON-2M-S-RH» manufactured by ZAO «NPC» Optika». The detector not only combines all the advantages of fiber-optic systems, but is also sold at an affordable price. By choosing «VORON-2M-S-RH» , the customer will receive a reliable, scalable system that does not require large expenses for maintaining operability and technical service. The detector is designed to protect remote, especially important, potentially dangerous and other objects, perimeters, their local zones and controlled areas of various sizes and lengths, including multi-border ones. The detector is also used as part of integrated physical protection systems (IPPS) of complex objects. When using the detector as part of PPPS systems, it is supplied with a set of software and hardware for integrated control. «VORON-2M-S-RH» generates an alarm notification using the principle of changing the light flux passing through a sensitive fiber-optic element (cable) under mechanical impacts caused by the detection object.
The VORON-2M-S-RH detector consists of:
1. A linear part located on the protected perimeter, consisting of the following:
optical communication cable;
optical sensor cable;
coupling couplings;
optical-mechanical locking devices;
optical-magnetic sensors for opening gates and doors.
2. The stationary part, located in the security room in the equipment cabinet, with special components, consisting of the following:
signal processing unit;
data collection and processing system;
uninterruptible power supply unit.
«VORON-2M-S-RX» is manufactured on the basis of patent No. 2311687 dated 07.03.2008 and has a certificate of conformity No. POCC RU. ML17.B00098. Production complies with the requirements of ISO 9001:2008 (GOST R ISO 9001 — 2008).
The detector in autonomous mode ensures the following main functions:
— detection of penetration events through the protected perimeter boundaries;
— detection of penetration events into protected buildings, structures and their interiors;
— detection of unauthorized opening of the detector's protective shells;
— detection of technical malfunctions and failures of the detector;
— sound (tone) and light notification of alarm events and detector states;
— registration and logging of all information on events and detector states;
— control of operator actions when working with the detector;
— display of all events and detector states on the alarm signal panel and at the operator's automated workstation;
— constant monitoring of the integrity and completeness of the detector during operation.
By order of the head of the 12th Main Directorate of the Ministry of Defense of the Russian Federation dated July 2, 2007 No. 140, the IO 212-2 linear fiber-optic detector was accepted for supply to the Armed Forces of the Russian Federation.
Various modifications of the detector have been installed:
— in Baranovichi (space forces);
— in Kozelsk, Noginsk, Izhora, Arkhangelsk, Goryachy Klyuch, Kyrgyzstan, Primorsky Krai, Kamchatka (Navy);
— at 18 oil and gas facilities in Tyumen Oblast;
— at the border service facilities of the Republic of Belarus;
The composition of the detector (completeness) is variable, which allows implementing systems of various configurations with remote monitoring and control functions and outputting information to a computer for territories (open areas, various objects, premises) with different perimeters (including multi-boundary) in conditions of I, II, III wind and icy regions of moderate and cold climate according to SNiP 2.01.07-85.
The detector has a high probability of detecting an intruder with a low level of false alarms in conditions of exposure to natural sources of interference.
Technical specifications:
maximum number of protected zones by one information collection and processing system — 56. Maximum perimeter length (maximum distance of the addressable zone from the hardware and software part) — 50,000 m;
length of the protected zone — up to 1000 m;
climatic zones of application: from +50 °C to -50 °C;
the detector is not susceptible to electromagnetic interference;
power supply voltage: 170–250 V;
power consumption — no more than 350 W;
service life — at least 10 years;
warranty period — 3 years.
The detector can be connected to the software and hardware of detectors of other types, included in other complexes of technical security equipment (TSE), or a TSE complex can be built on its basis with the connection of TSE complexes of other types to it.