RU68157U1 - COMBINED MEANS OF PROTECTING PERIMETERS OF OBJECTS - Google Patents

Abstract

A combined facility perimeter security facility containing a warning fence, a seismomagnetometric device for burglar alarms, vibration detection means, a television monitoring device, a precinct cabinet, cable power and communication networks, an engineering obstruction, is designed to build long, closed boundaries for the facility perimeters protection. This tool is characterized in that it is equipped with a seismic magnetometric device for burglar alarm, used as the first signaling line of protection, which provides a covert (masked) signaling blocking of the line of protection, detects the presence of ferromagnetic objects (weapons, tools, etc.) in the intruder, and determines the direction of movement of the offender at the turn of protection.

Description

The proposed utility model relates to technical means of protecting the perimeters of objects, and can be used for physical protection and signaling blocking of the perimeters of objects and extended borders on plain and rough terrain.

Known technical means of protecting the perimeters of objects - "Combined means of protecting the perimeters of objects" (Application No. 2007120362 dated 06/01/2007), containing a warning fence, an engineering barrier, a trellised fence of a combined detection means, a radio beam detection means, vibration detection means, a television monitoring device, precinct cabinet, cable power and communication networks.

The operation of the combined facility perimeter security facility is based on the formation of detection zones by each means of detection, at the intersection of which an intruder or a group of intruders transmits a response signal to the information collection and processing system. The radio-beam detection means creates a detection zone between the warning and trellised boom of the combined detection means, in the exclusion zone, in a vertical plane, from the top of the trellised boom to the ground level. Detection zone width - (5 ÷ 6) m. Vibration means

Detection creates a detection zone on the trellised fence. A warning fence protects against accidental, inadvertent crossing by people and animals of the detection area of the radio-beam detection means.

An engineering obstacle provides a physical delay for the intruder who has overcome the trellised fence of the combined detection means until the arrival of response forces.

Signs of an analogue that match the features of the proposed utility model:

1. The presence of warning barriers, trellised barriers, vibration detection means, television control devices, precinct cabinet, cable power and communication networks, engineering obstacles.

The disadvantages of this prototype device include:

1. Low signaling reliability of the device due to the use of radio-beam detection means as the first signaling line. The radio-beam detection means reduces the reliability of the security equipment under the influence of climatic factors, industrial and radio interference, power lines, thunderstorms, and can be suppressed when intruders use countermeasures. The presence of grass or snow, ground irregularities in the detection zone of the radio beam means significantly increases the number of false positives, which is explained by the interference of radio waves from the transmitter and radio waves reflected from these objects (non-optimal addition at the receiver). The equipment of the radio-beam detection means requires constant adjustment during operation.

2. This device does not detect the presence of ferromagnetic objects (weapons, tools, etc.) in the intruder.

3. This device registers only the intruder crossing the detection zone and does not determine the direction of its movement.

4. A radio beam is an active means of detection and unmasks the security line.

The objective of the utility model is to create a combined means of protecting the perimeters of objects, which would eliminate the above disadvantages.

The technical result obtained by the implementation of the utility model:

- increasing the signaling reliability of a combined facility perimeter security facility;

- the possibility of detecting the intruder ferromagnetic objects (weapons, tools, etc.);

- the ability to determine the direction of movement of the offender at the first line of guard;

- providing a secretive (masked) alarm blocking of the first line of guard.

The problem is solved due to the fact that in the combined facility perimeter protection facility containing a warning fence, vibration detection means, a television control device, a precinct cabinet, cable power and communication networks, an engineering obstruction, the following difference is provided - it is equipped with a seismic magnetometric device for burglar alarm .

Between the set of essential features of the claimed object and the achieved technical result there is a causal relationship, namely:

1. The equipment of the first signaling line of the combined facility perimeter protection facility with a seismomagnetometric device with enhanced functional and tactical reliability provides a higher signaling reliability

compared to the prototype device. This device is operable under the influence of industrial and radio interference, power lines, thunderstorms, and is resistant to the influence of countermeasures. Insulated copper conductors of the cable sensor 1 are connected in series, forming a distributed induction coil of ten turns. The coil formed in this way is a magnetometric sensor and is elongated along the security section in the form of a long “eight”, which allows tens of times to reduce (compensate) external electromagnetic interference from remote sources (with a small spatial gradient). Useful signals, unlike interference, are practically not attenuated due to the close distance from the loop to ferromagnetic objects moving in the controlled detection zone. The interference sensor provides the detuning of the device from electromagnetic fields of natural (thunderstorm) and industrial origin, increasing the noise immunity of the product.

The device hardware does not require adjustment during operation.

2. The magnetometric channel of the seismomagnetometric device ensures the detection of ferromagnetic objects (weapons, tools, etc.) at the intruder. The intruder is detected by the changes he makes to the existing magnetic field of the Earth, which are recorded in the detection zone using a cable sensing element located in the ground. The cable sensing element of the device is configured in such a way that its conductors form a spatially distributed induction loop that is sensitive to a change in magnetic flux caused by an intruder, which, by the principle of electromagnetic induction, is converted into a voltage signal.

3. The seismic channel of the seismomagnetometric device determines the direction of movement of the intruder across the border of protection. The device contains a cable sensitive element in the form of three cable segments of a special design located in the ground in

one plane at an equal distance from each other along the guarded line, external and shielding conductors, which form three distributed seismic sensors. Analysis of the time sequence of the signals of seismic sensors, when the intruder crosses the detection zone of the device, allows you to determine the direction of movement of the intruder.

4. The seismic magnetometer device provides a secretive (maskable) alarm blocking of the first line of guard due to the fact that it is a passive detection tool, and its cable sensitive element, amplifier unit and electronic unit are located below the ground.

The utility model allows you to:

1. To increase the signaling reliability of the facility perimeter security facility.

2. Detect the presence of ferromagnetic objects (weapons, tools, etc.) in the intruder.

3. Determine the direction of movement of the offender at the first line of guard.

4. Provide secretive (masked) alarm blocking of the first line of guard.

The technical essence and principle of operation of the proposed tool are illustrated in the drawing, which shows a cross section of a combined means of guarding the perimeters of objects.

The drawing shows the following notation:

1 - cable sensing element of a seismomagnetic device for burglar alarm;

2 - connecting cable of the amplifier block with a cable sensitive element of a seismomagnetometric device for burglar alarm;

3 - mesh cloth warning fence;

4 - rack warning barriers;

5 - power cable camera and spotlight;

6 - cable sensing element of vibration detection means;

7 - exclusion zone;

8 - a television camera;

9 - rack lattice boom vibration detection means;

10 - connecting cable of the processing unit with the sensitive element of the vibration detection means;

11 is a section of the trellis fence of the vibration detection means;

12 - communication cable of the camera with the peripheral controller;

13 - brackets for fastening power and low-current boxes;

14 - power box;

15 - low-current box;

16 - trunk communication cable of the peripheral controller with a system for collecting and processing information;

17 - cable remote power;

18 - a rack for attaching a precinct cabinet;

19 is a block of amplifiers of a seismic magnetometric device for burglar alarm;

20 - spotlight;

21 - a precinct cabinet;

22 - communication cable of an electronic seismomagnetometric device for burglar alarm with a peripheral controller;

23 - block electronic seismomagnetometric device for burglar alarm;

24 - container;

25 - peripheral controller;

26 - bracket engineering obstruction;

27 - communication cable of the processing unit of the vibration detection means with a peripheral controller;

28 - processing unit of the vibration detection means;

29 - spiral security barriers engineering obstruction;

30 - communication cable of the amplifier block with the block of the electronic seismic magnetometric device for burglar alarm;

31 - mesh web engineering obstruction;

32 - rack engineering obstruction.

The proposed combined facility perimeter security facility consists of:

- a warning fence designed to protect against accidental, unintentional crossing by people and animals of the detection zone of the seismic magnetometric device for burglar alarm;

- a seismomagnetometric device for burglar alarm, designed to organize a secretive (into the ground) alarm blocking of the land line of protection from 20 m to 500 m long;

- vibration detection means, designed to organize the alarm blocking of the land line of protection with a length of 5 m to 500 m, and the physical delay of the intruder;

- television control devices designed to transmit video information from an alarming area;

- the precinct cabinet, designed to protect against atmospheric influences and mechanical damage to the equipment of the detection means;

- cable networks of power supply and communication;

- an engineering obstruction designed to physically delay the intruder until the arrival of response forces.

The above structural elements are made as follows:

1. The warning fence is a single-row fence with a mesh web 3 on metal load-bearing posts 4 installed in the ground at a distance of (3 ÷ 4) meters from each other. As a mesh cloth 3, a welded, galvanized mesh of the SSCP type is used. The mesh web 3 is attached to the supporting posts 4 with washers, bolts and trims. The support column 4 consists of a perforated, U-shaped profile (56 × 33 × 3) mm, length 2800 mm. Perforation on the supporting racks 4 allows the use of various types of nets, simplifies installation with a complex perimeter relief with a large number of differences in height. The warning fence is 1.7 meters high, from ground level, and is deployed up to 250 meters long. The build-up is ensured by connecting the barriers in series with each other for organizing an extended, closed line of guard of the perimeter of the object.

2. The seismic magnetometric device for burglar alarm consists of a cable sensitive element 1, an amplifier block 19, and an electronic 23 block. The device operates on the basis of registration and combined processing of seismic and magnetometric useful signals caused by mechanical influences of intruders on the soil surface and the presence of ferromagnetic objects. The device detects and determines the direction of movement (conventionally “to us” and “from us”) of people crossing its detection zone, as well as the presence of ferromagnetic objects (weapons, tools, etc.). The detection zone, up to 10 m wide, is formed by a cable sensitive element 1, which is installed in the ground to a depth of 0.30 m along the guarded line.

Cable sensing element 1 performs the function of a seismic and magnetometric transducer, recording and

transforming into mechanical signals mechanical vibrations of the soil and local changes in the magnetic field.

Structurally, the cable sensing element 1 consists of three segments, installed at a distance of 1.0 m from each other, made on the basis of a special ten-pair cable KTPEDEP with internal copper conductors with a diameter of 0.5 mm with polyethylene insulation, two aluminum-lavsan (or aluminum-polyethylene) screens, separated dielectric, sheath made of light stabilized polyethylene. The special cable design allows organizing three independently working sensors in the cable sensing element 1: seismic, magnetometric, and interference, which form the corresponding signal recording channels.

A seismic sensor converts mechanical stresses on the ground caused by an intruder crossing the detection zone into electrical signals. Electrical signals during mechanical vibrations of the soil are formed between the external and internal screens of the segments of the cable sensor 1 due to the triboelectric properties of the cable during its deformation.

When moving through the detection zone, the intruder - the source of seismic vibrations - affects the soil surface and generates the corresponding useful seismic signals in all three segments of the cable sensor 1, the extrema of which correspond to the point of maximum proximity of the source to the segment.

The electronic unit 23 determines the maximum modulus signals from each segment, generates a temporal sequence of their samples, puts in accordance with this sequence the direction of the intended movement - “from us” or “to us”, giving a signal, respectively, at its first or second outputs.

The magnetometric sensor converts local disturbances of the magnetic field that occur in the detection zone into electrical signals

when it is crossed by a person carrying ferromagnetic objects (weapons, tools, etc.).

The interference sensor, which is an open circuit, provides detuning from electromagnetic fields of natural (thunderstorm) and industrial origin, increasing the noise immunity of the device. Electrical signals from seismic, magnetometric sensors and an interference sensor cable sensing element 1 are fed to the inputs of the corresponding channels of the amplifier block 19, in which they are amplified and analog processing.

The amplifier block 19 is designed to amplify, filter, and pre-process signals from 3 seismic sensors, from a magnetometric sensor and an interference sensor. Structurally, the amplifier unit 19 is based on the optical coupling 2179-CS, intended for use in the ground and providing complete sealing of the internal volume. Inside the housing of the amplifier unit 19, two shielded boards are installed:

- preamplifier of seismic signals;

- preamplifier of magnetic signals.

The clutch housing of the optical unit of the amplifier 19 consists of two covers, between which there is a rubber sealing gasket that protects the internal volume from moisture and dust. The covers are interconnected by two captive screws, and on the sides with special wedges. On the body of the amplifier block 19 there is a valve (closed in the normal state), designed to check for leaks under pressure. The connection of the amplifier unit 19 with the electronic unit 23 is carried out using a communication cable 30. A voltage is supplied to the amplifier unit 19 via a communication cable 30.

From the output of the amplifier block 19, the electrical signals are fed to the corresponding inputs of the electronic 23. The electronic 23

in accordance with the established functioning algorithm, in the case of signals matching the decisive rule, it generates triggering signals - “from us” or “to us”.

The electronic unit 23 is designed to provide the unit of amplifiers 19 with secondary power, analog and digital processing of signals from the unit of amplifiers 19 in accordance with the programmed algorithm, to generate operation signals, to monitor the health (operability) of the device. Structurally, the electronic unit 23 is made similarly to the amplifier unit 19 based on the optical coupling 2179-CS. Three boards are installed inside the electronic unit case:

- amplifier of magnetic signals;

- automatic seismic signal threshold regulator;

- processor.

The communication of the electronic unit 23 with the peripheral controller 25 is carried out using a communication cable 22. The communication cable 22 is supplied to the electronic unit 23 with a supply voltage, control signals and a remote control pulse.

The amplifier unit 19 and the electronic unit 23 is located at the turn of the container 24. The container 24 is designed to protect the units from dirt, ease of maintenance when carrying out commissioning and checking the performance. Structurally, the container 24 is made in the form of a box of high-strength plastic, closed with a lid on top.

The container 24 has slots for laying connecting cables and a communication cable and is placed in the ground at a depth of 0.80 m, at a distance of no more than two meters from the end of the guard line.

3. The vibration detection means consists of a trellis fence, processing unit 28, and a cable sensing element 6.

The lattice fence is a special engineering structure and is a single-row lattice fence on

metal support racks installed in the ground at a distance of 2.5 meters from each other. The fence consists of steel racks 9 and lattice sections 11. Bearing racks 9 are made of square pipe (60 × 40) mm.

The grating section 11 is formed by steel vertical and horizontal rods with a diameter of 6 mm, interconnected at the intersection points by welding. Section cell size - (50 × 200) mm.

Section width - 2450 mm. Section height - 3100 mm.

The design of the fence provides stepless fastening of the lattice sections 11 to the racks 9 (in places of a sharp change in the terrain) using special steel brackets and self-tapping screws.

Structurally, the processing unit 28 is made on the basis of a unified metal case in the form of a removable unit with a bracket, with which it is installed on a perforated rail inside the precinct cabinet 21 to protect it from atmospheric influences and mechanical damage. Inside the housing of the processing unit 28 are located: a charge-sensitive amplifier, filters, a processor and an actuator based on a solid-state relay.

The sensing element 6 consists of two triboelectric cables. The use of two cables can improve noise immunity by subtracting common-mode noise at the input of the processing unit 28. The fastening of the sensing element 6 to the trellised sections 11 is carried out using light-resistant plastic ties.

The connection of the processing unit 28 to the sensing element 6 is carried out using a connecting cable 10, to the peripheral controller 25 - using a communication cable 27.

4. The television control device consists of a camera 8 and a searchlight 20.

The camera 8 and the searchlight 20 are fixed on the stand 9 with the help of bolts and nuts. The connection of the camera 8 to the peripheral controller 25 is carried out using a communication cable 12. The voltage of the AC power supply (220 V) is supplied to the camera 8 and the spotlight 20 via the power cable 5.

5. The precinct cabinet 21 is a metal cabinet with a door, inside of which horizontally perforated rails are mounted for mounting the peripheral controller 25 and the processing unit 28.

On the side walls of the cabinet of the precinct 21, ventilation shutters are provided. A protective visor is installed above it to prevent the cabinet from heating up from solar radiation. In the lower part of the enclosure 21, there are two openings for cable entry. To make internal and external connections in the cabinet precinct 21 installed terminal blocks.

The precinct cabinet 21 is fixed to the support 18 with bolts and nuts. The support 18 is fixed in the ground with concrete.

6. Cable power and communication networks are located on racks 9 in metal, galvanized boxes 14 and 15. The main communication cable 16 of the peripheral controller 25 with the information collection and processing system is located in the low-current box 15. The remote power cable 17 is located in the power box 14. Box 14 and 15 are equipped with compensators to compensate for the temperature effects of the environment. Boxes 14 and 15 are installed on the brackets 13. The brackets 13 are fastened to the posts 9 using self-tapping screws.

7. An engineering obstacle is a single-row mesh fence with a visor 26 and with a mesh web 31 on metal support racks 32 installed in the ground at a distance of (3 ÷ 4) meters from each other, equipped with four rows of a spiral safety barrier 29, with a diameter of 900 mm reinforced barbed

tapes. The visor 26 consists of a perforated, U-shaped profile. Perforation on the visor is intended for fastening two rows of steel galvanized wire with a diameter of 3 mm, to which, in turn, using wire segments, a spiral safety barrier 29 is attached. As a mesh cloth 31, a welded, galvanized mesh of the SSCP type is used. The mesh web 31 is attached to the support legs 32 with washers, bolts and trims. Bearing racks 32 are made of square tube (60 × 60) mm. An engineering obstruction has a height of 3.5 meters, from ground level, and unfolds up to 250 meters in length. The build-up is ensured by combining obstacle barriers in series with each other to organize an extended, closed line of guard for the perimeter of an object.

Due to the significant cutting effect and springing properties, the spiral safety barriers 29 of the engineering barrier are an especially insurmountable physical obstacle due to their volumetric design.

The combination means for protecting perimeters of objects described above are used as follows:

Prepare a combined security equipment for operation. Carry out an external inspection of the equipment for proper installation and reliability of electrical circuits when the power is off. A peripheral controller 25 is connected to a data acquisition and processing system. The power supply of the vibration detection means and the seismomagnetometric device for burglar alarm are turned on, and the health of their equipment is monitored. To check the operability of the seismic magnetometric device for burglar alarm, control actions are performed by crossing the detection zone of the seismomagnetometric device by people with and without ferromagnetic objects in any three areas

security zones. To check the operability of the vibration detection means, control actions are made by climbing over the barrier in any three parts of the protection zone, with the simulation of destructive effects on the trellised section 11.

A combined facility perimeter security facility is used as follows:

Organize round-the-clock duty of shift operators at the control panel of the information collection and processing system. The operation of the combined security equipment is based on the formation of a seismic magnetometric device for security alarm and vibration detection means for detecting detection zones, at the intersection of which an intruder or a group of intruders sends a response signal to the information collection and processing system.

The seismomagnetometric device creates a detection zone between the warning and trellised barriers of the vibration detection means, in the exclusion zone 7. Vibration detection means creates a detection zone on the trellised sections 11 of the barrage.

After overcoming the warning fence, the intruder enters the detection zone of the seismomagnetometric device.

When crossing the detection zone of a seismomagnetometric device by a person who does not have ferromagnetic objects, soil vibrations are transmitted to three segments of the cable sensor 1 and cause the appearance of electrical signals (due to the triboelectric effect) at their outputs. The electrical signals from the segments of the cable sensing element 1 to the amplifier block 19 are amplified, filtered and transmitted through the communication cable 30 to the electronic block 23. The electronic block 23 determines the maximum modulo signals from each segment of the cable sensitive element 1, forms the time sequence of their readings , associates with this sequence the direction of the alleged

movement - "from us" or "to us", and gives a signal to the peripheral controller 25 in the form of opening normally closed relay contacts, respectively, at its first or second outputs. The response signal of the seismic channel of the seismomagnetometric device from the peripheral controller 25 is supplied via the main cable 16 to the information collection and processing system.

When crossing the detection zone of a seismomagnetometric device by a person carrying ferromagnetic objects, local changes in the magnetic flux are introduced into the existing magnetic field of the Earth, which, according to the principle of electromagnetic induction, are converted in the magnetometric sensor of the cable sensor 1 to voltage signals. These signals, together with the signals of the seismic sensor of the cable sensing element 1, are supplied to the amplifier unit 19. The electrical signals coming from the magnetometric and seismic sensors of the sensing element 1 to the amplifier unit 19 are amplified, filtered and transmitted through the communication cable 30 to the electronic unit 23. These signals are processed by the electronic unit 23 in such a way that, in accordance with the distinguishing features, the interference is eliminated and the signals initiated by the intruder are isolated. The electronic unit 23 generates the response signals of the magnetometric and seismic sensors of the sensing element 1, and issues them to the peripheral controller 25 in the form of opening normally closed relay contacts. The triggering signals of the seismomagnetometric device from the peripheral controller 25 are received via the main cable 16 to the information collection and processing system.

When triggering signals from the seismomagnetometric device for burglar alarm appear, the television monitoring device transmits video information from the alarm section to the collection system and

information processing, which allows the system operator to objectively assess the alarming situation.

When you try to climb through the trellised section 11, and deformation or destruction of its canvas by the intruder, the deformation and vibrations of the trellised section 11 are transmitted to the cable sensitive element 6 of the vibration detection means. The deformation and vibration of the cable sensing element 6 cause the appearance of electrical signals (due to the triboelectric effect) at its output. The electrical signals coming from the cable sensing element 6 through the connecting cable 10 to the processing unit 28 are amplified, filtered and processed by the processing unit 28 so as to distinguish, in accordance with the distinctive features, the signals initiated by the intruder's exposure to the trellised fence. The processing unit 28 provides a response signal through the communication cable 27 to the peripheral controller 25, in the form of opening normally closed relay contacts. The response signal of the vibration detection means from the peripheral controller 25 is supplied via the trunk cable 16 to the information collection and processing system.

The source of information:

1. "Combined facility perimeter security." Application No. 2007120362 dated 06/01/2007.

2. "Seismomagnetometric device for burglar alarm." Patent No. 2210116, 10.22.2001.

Claims (1)

A combined facility perimeter security facility containing a warning fence, vibration detection means, a television monitoring device, a precinct cabinet, cable power and communication networks, an engineering obstruction, characterized in that it is equipped with a seismomagnetometric alarm device.