WO2015055873A1

WO2015055873A1 - Device for detecting intrusion on security fences

Info

Publication number: WO2015055873A1
Application number: PCT/ES2014/070341
Authority: WO
Inventors: César SALLEN ROSELLÓ
Original assignee: Proytecsa Security, S.L.
Priority date: 2013-10-16
Filing date: 2014-04-22
Publication date: 2015-04-23
Also published as: ES2536027A1; EP3059716A1; EP3059716A4; ES2536027B1

Abstract

The invention relates to a device for detecting intrusion on security fences, which is especially designed to be mounted on already existing security fences used to protect transportation infrastructure, although it can also be applied to other types of security fence, and allows detection of the site where the intrusion occurs, with the advantage of a practically zero percentage of false alarms. The device basically consists of: a plurality of multimodal fibre optic cables camouflaged by the metal mesh of the security fence, a series of signal analysts housed in tight casings, with which at least a pair of fibre optic cables is associated; a variety of concentrators having a similar technology to that of the signal analysts, housed in tight casings, with which at least a pair of fibre optic cables is associated, and provided with a connectivity module; a communication line for the signal analysts and the concentrators; and a control centre with which the communication line communicates.

Description

INTRUSION DETECTOR DEVICE IN SECURITY VALVES.

DESCRIPTION. OBJECT OF THE INVENTION

The following invention, as expressed in the statement of the present specification, refers to an intrusion detection device in security fences, whose security fences delimit a perimeter to be protected, with the object of detecting any intrusion attempt with total reliability. or destruction of the fence and, in addition, to detect the specific place where it occurs, for which the device is based on a continuous check of a plurality of transmission lines of an optical signal.

An important advantage of the device is that it is immune to vibrations, strong wind, shock, noise and adverse weather conditions, including electrical phenomena, avoiding false alarms.

To this end, along the protective fence incorporates a plurality of multimodal fiber optic cables mimicked with the structure of the metal meshes that configure the perimeter to be protected, whose plurality of multimodal fiber optic cables are mounted associated with a series of analyzers of signal and concentrators, said concentrators being based on the same technology as the signal analyzers with the addition of a connectivity module for communication with a control center or other places, so that the plurality of fiber optic cables form a Redundant communication ring for punctual breaks of the multimodal optical fiber.

Another important object of the invention is that the intrusion detection device can be installed both in those security fences to be installed new and in those already existing that are formed by a plurality of posts anchored to the ground and between which it is arranged and fixed , mainly, simple torsion metal meshes, although they can be other types of metal meshes and whose fences lack added elements that provide real security.

SCOPE. In this report, an intrusion detection device is described in security fences, which is applicable for mounting both those new security fences and existing ones constituted by a plurality of posts anchored to the ground and on the that metal meshes are arranged and fixed for the protection of long perimeter paths, enclosures and roads that must have a certain level of safety and whose detector device is of special application in the protection of long-distance and high-track railways speed.

BACKGROUND OF THE INVENTION

As is known, in today's society, there are multiple and varied threats to which both people and property are exposed. That is why, both society and today's industry, demand security systems that allow them to protect, control and supervise their facilities in a simple and efficient way, both locally and remotely.

To protect property and / or people, within a delimited area, the first threat to avoid is intrusion attempts.

On the other hand, we can indicate that perimeter protection solutions are defined as the set of systems and equipment that, acting in a coordinated manner, allow minimizing the possibility of an intrusion in the confinement zone, protecting the people and / or goods that are inside of the perimeter. Perimeter protection solutions are mainly based on:

Define the zone of confinement of the installation (define the perimeter).

Ensure a high level of security throughout the enclosure, providing the perimeter of detection areas that alert us to a possible intrusion.

Have vision, both locally and remotely, of the entire perimeter zone.

Control and supervise the entire implanted system both locally and remotely,

Efficiently and easily manage the set of systems, guaranteeing quick and easy access to the information they generate. To solve the problem of detection of intrusion attempts, sensors of different types and technologies are used depending on the installation to be protected and the type of intrusion to be avoided.

On the other hand, it must be taken into consideration that one of the main problems of the current sensors is their behavior in the face of external phenomena, whether of animals, vegetation or weather, which cause a high number of "false alarms". Thus, for example, sensors based on microphone or microwave cables are very sensitive to external phenomena, so that to discriminate when it is a real alarm or a false alarm they use complex algorithms, which analyze and discriminate the signals obtained by the sensor , to compare it with a pattern and find out if it is a real alarm or not.

The signals are analyzed according to their intensity or vibration pattern, which necessitates a calibration in the field itself to adapt the sensor to the terrain and environmental conditions of the place where it will be installed. Even so, the false alarm rate can become high.

On the other hand, as is known, the optical fiber is immune to the weather, and is not affected by the action of external elements, so that once installed, it does not need calibration or learning patterns, providing a series of advantages in the installation as: Flexibility

Lightness

Immunity to electromagnetic disturbances Do not cause interference

Ease of repair before an intentional cut

Great distance to cover

In addition, the installation of the optical fiber is extremely simple and fast since it is stapled on the simple torsion mesh and its sabotage is not possible since it cannot be cut to make a bridge. Likewise, and in accordance with the above, we can refer to the fact that there is currently a great variety and number of areas protected by a simple security fence based on a plurality of posts anchored to the ground and on which are available and fix some metal meshes to cover the entire perimeter to be protected, so that these fences provide a minimum security by not having any means of detecting the minimum intrusion, so that the control of the fence can only be carried out visually . Thus, these types of fences are very widespread in the protection, for example, of terrestrial communication roads such as roads, highways and railways, presenting the inconvenience of not being able to detect any type of intrusion if not visually, so, In practice, there is a lack of security, having, in addition, the added disadvantage that these types of fences cover large extensions, so that it becomes increasingly necessary to have a stricter control with which any intrusion in the area can be detected. time and place to occur.

DESCRIPTION OF THE INVENTION In order to solve the aforementioned drawbacks, an intrusion detection device in security fences is described herein, which is of special application for mounting in those security fences, already existing, for the protection of communication paths, although, logically, it can also be applied in another type of security fences, so that by means of the device object of the invention, of low economic cost, it is possible to detect the place where the intrusion occurs with the great advantage of having, practically , 0% of false alarms, which is a very important advantage.

In this way, an intrusion detection device in security fences is described herein, whose security fences are of the type constituted by:

> a plurality of posts anchored to the ground defining the security perimeter, and;

> metal meshes fixed between the posts having the corresponding tension wires; so that the device to be incorporated is useful to detect possible intrusion attempts by cutting or pressing on the metal meshes and it is constituted by:

> a plurality of multimodal fiber optic cables mimetized with the metal meshes that conform the security fence, according to their entire length;

> a series of signal analyzers housed in sealed boxes, which are associated with at least one pair of fiber optic cables;

> a diversity of technology concentrators similar to that of the signal analyzers, also being housed in watertight boxes, to which at least one pair of fiber optic cables is associated and provided with a connectivity module;

> a communication line of the signal analyzers and the concentrators laid along the perimeter to be protected, and;

> a control center with which the communication line communicates; so that the signal analyzers comprise: an electronic detection module with the corresponding electronic control unit and connections of the fiber optic cable pairs and digital inputs and outputs;

a data communication module with the corresponding control unit, communicated with the electronic detection module, as well as with the adjacent analyzers and / or concentrator;

a climate management module with the corresponding control unit, communicated with the data communication module, and which controls the elements of climate control, and;

an energy supply management module that receives power from the general network or from an alternative source and supplies power to the different modules of the analyzer. Thus, due to the plurality of multimodal fiber optic cables, a data stream is transmitted which, due to its simple interruption, is indicative of breakage of the multimodal optical fiber and, consequently, of intrusion. The climate control elements are defined by a temperature sensor and a humidity sensor associated with a resistance, an automatic internal pressure relief valve and a fan, controlling the rapid drops and rises of the temperature inside the box waterproof, in order to maintain an adequate temperature for the perfect functioning of the elements housed in the waterproof boxes.

On the other hand, each determined number of signal analyzers will have a concentrator, which is the signal interface between the whole sector of signal analyzers associated with it and the control center or communication place. Thus, in the event of a break in a multimodal fiber optic cable, the signal analyzer or concentrator with which it is associated detects the interruption of the flow, and with its communication to the control center the breakpoint of the data transmission flow is determined by breakage. of the multimodal optical fiber to allow acting accordingly. For the energy supply of the components of the signal analyzers and concentrators, along the security perimeter, there is a corresponding power supply for the general network or an alternative energy source, such as solar panels. Likewise, in each of the watertight boxes of the signal analyzers and the concentrators, at least one battery may be available, so that in the event of a power failure of the general network or of the source of Alternative energy is provided with energy supply and continues to function properly, also allowing said power to come from individual solar panels per analyzer channel, in cases where it is needed.

Likewise, associated with all or part of the watertight housing of the signal analyzers and concentrators, they can have respective spotlights and / or vision cameras allowing visually control the near space within a certain range of action. In short, an important advantage is that due to the plurality of multimodal fiber optic cables, whose mechanical resistance has been designed so that their breakage occurs in accordance with an intrusion condition, a data stream is transmitted which, due to its simple interruption, is indicative. of breakage of the multimodal optical fiber and, consequently, of intrusion, that is, it does not perform any analysis of the transmitted signal, which allows the number of false alarms to be reduced, practically, to 0%.

To complement the description that is going to be carried out below, and in order to help a better understanding of the characteristics of the invention, this descriptive report is accompanied by a set of drawings, whose figures are illustrative and not limiting , the most characteristic details of the invention are represented.

BRIEF DESCRIPTION OF THE DESIGNS.

Figure 1. It shows a view of a section of security fence in which there are some posts between which the corresponding metal mesh (not shown) is laid on which the plurality of multimodal fiber optic cables associated with signal analyzers and concentrators, defining a redundant communication ring along the fence.

Figure 2. Shows a view of a schematic block diagram related to signal analyzers. Figure 3. Shows a view of a scheme related to the protection of a section of fencing path on both sides of a railway line.

Figure 4. It shows a view of a schematic block diagram related to a concentrator, being able to observe how it incorporates a technology similar to signal analyzers with the addition of having a connectivity module.

DESCRIPTION OF A PREFERRED EMBODIMENT.

In view of the aforementioned figures and in accordance with the numbering adopted, we can observe how security fence 1 is of the type of the widely disclosed fences that are they constitute a plurality of posts 2 anchored to the ground between which metal meshes are laid, not shown, fixed to posts 2 with the corresponding tension wires delimiting the security perimeter, and which, in principle, lack any means of detecting possible actions in it, such as cuts to access the protected area.

These types of fences are widely disseminated and, for example, they are installed as security fences on land communication roads such as roads, highways and highways and railways but lacking means to detect possible actions on the fence to access the The area to be protected does not adequately fulfill its function, so that in order to solve this problem, an intrusion detection device that can be connected to said type of fences is described, which allows the detection of any intrusion or destruction of the fence with a number of false alarms, practically, 0%.

Thus, the intrusion detector device is based on a plurality of multimodal fiber optic cables 3 mimetized with the metal meshes forming the security fence, according to their entire length, as well as a series of signal analyzers 5, 5 ', 5 ", 5"', ... . and concentrators 6, 6 ', 6 ", 6"', ... whose concentrators are based on the same technology as the signal analyzers with the addition of being connected to a communication line 7 communicated with a control center 8, whose communication line 7 may be based on a fiber optic cable.

The signal analyzers 5, 5 ', 5 ", ... and the concentrators 6, 6', 6", ... will be housed in respective sealed boxes 4 and to which the plurality of fiber optic cables 3 are associated for Continuous check in order to control the continuous transmission of optical signal, since, otherwise, that there is a lack of signal transmission will be indicative of cut or breakage of the optical fiber. The aforementioned watertight boxes 4 that house the technology of the signal analyzers and the concentrators can be fixed on the posts 2 themselves.

The signal analyzers 5, 5 ', 5 ", .. and the concentrators 6, 6', 6", .. housed in the watertight boxes 4, receive power from the general electrical network 9 lying along the perimeter to be protected . Also, analyzers and concentrators could be powered by solar panels 10. Thus, the plurality of multimodal fiber optic cables 4 associated with the signal analyzers 5, 5 ', 5 ", 5"', ... and the concentrators 6, 6 ', 6 ", 6"', ... they define corresponding redundant communication rings throughout the security fence 1 detecting the point of a possible intrusion or destruction of the fence.

To have adequate control of the entire installation to be protected, which can cover many kilometers in length, each determined number of signal analyzers 5, 5 ', 5 ", 5"', ... will have a hub 6, 6 ', 6 ", 6"', ...

On the other hand, mentioning Figure 1 of the designs, it can be seen how four fiber optic cables 3 are associated to the signal analyzers and the concentrators forming a redundant ring that can cover a length of 500 meters, so that before any cut or breakage of one of them the signal analyzer or concentrator to which it is associated will detect that there has been an interruption in the data transmission, indicative of breakage, said information being communicated to the control center 8 locating the specific place of the same.

As reflected by the plurality of multimodal fiber optic cables 3, a data stream is transmitted which, by its simple interruption, is indicative of breakage, and, consequently, of intrusion, that is, it does not perform any analysis of the signal obtained, but, only, the signal analyzers and the concentrators with the control electronics associated with them, detect if the data flow arrives or not, communicating any incident through the communication line 7 connected to the signal analyzers 5 , 5 ', 5 ", .. and with the concentrators 6, 6', 6", ... to the control center 8.

Mentioning the technology of the analyzers 5, 5 ', 5 ", .., and according to figure 2 of the designs, they are based on:

> an electronic detection module 1 1 with the corresponding electronic control unit and, basically, with: fiber optic connections 12 capable of eight detection rings based on the redundant rings of fiber optic cable pairs 3, and; digital inputs and outputs 13 for receiving commands or events, such as temperature and humidity, and acting on other installed elements, such as video surveillance cameras, external lights, etc.

> a data communication module 14, with the corresponding control unit, communicated with the electronic detection module 12, as well as with the adjacent signal analyzer and / or concentrator and whose data communication module 14 transmits: the events produced ;

the status of each module of the signal analyzer or concentrator, and;

all data collected inside the signal analyzer or concentrator (for example, temperature and humidity).

> a climate management module 15, with the corresponding control unit, communicated with the data communication module 14 and which controls the climate control elements 16 inside the waterproof case 4, and; > an energy supply management module 17 that receives power from the general power grid 9 or from the alternative energy source and that supplies power to the electronic detection module 1 1, the data communication module 14 and the management module Climate 15. Regarding the technology of concentrators 6, 6 ', 6 ", .., as we have indicated, it corresponds to the technology related to signal analyzers 5, 5', 5", ... with the addition of a connectivity module 21 that allows communication with the control center 8 or other places such as alarm centers or infrastructure centers. Thus, in figure 4 of the designs a block diagram of a concentrator is observed, being able to observe how the connectivity module has a plurality of outputs 22 for communication, and, likewise, the bidirectional transmission line 23 is observed of data, for example, with a central alarm. Thus, according to what has already been indicated, the electronic detection module 1 1 checks the continuity of the eight fiber optic loops, so that each fiber optic line travels a round-trip layout of a maximum of one thousand meters offering protection, as it is a loop or ring of 500 linear meters, with two fiber lines optics. In addition, in each of the watertight boxes 4 of the signal analyzers 5, 5 ', 5 ", 5"', .. and of the concentrators 6, 6 ', 6 ", 6"', .. it can be arranged of, at least, a battery, which will allow to maintain the energy supply in possible circumstances in which there is no power from the general network or from the solar panels. On the other hand, the climate management module 15 controls the climate control elements 16, which may be based on a temperature and humidity sensor associated with a resistor and a fan, allowing rapid temperature rises and rises to be can maintain an adequate temperature inside the watertight boxes 4.

This execution is of great importance in those places where there are sudden changes in temperature such as desert areas with temperature changes between day and night varying from more than 65 ° C to -20 ° C, whose temperature changes they make the components housed inside the watertight boxes cease to function properly, so that by maintaining the ideal temperature inside the components are allowed to function properly.

Likewise, associated with all or part of the watertight housing 4 of the signal analyzers and the concentrators, they can have respective vision cameras and / or spotlights allowing to have in the control center 8 a vision of what happens in their proximities

On the other hand, in figure 3 of the designs a possible plot protection scheme is represented relative to a section of sector, so that we can observe how on each side of a railway track 18 the corresponding security fence 1 and V, so that each of the signal analyzers 5, 5 ', 5 ", ... and the concentrators 6, 6', 6", .. are connected, by means of a cable 19, channeled under the railway layout 18, with respective distribution boxes 20 of redundant fiber optic rings or loops 3 '. Thus, it is appreciated how to each analyzer and to each concentrator eight redundant loops or rings of breakage detection are associated, although the number could be variable

In this way, the signal analyzers 5, 5 ', 5 ", .. and the concentrators 6, 6', 6", .. are arranged only on one side of the path, in the practical example in security fence 1 , and the associated fiber optic cables 3-3 'in a ring or redundant loop for detecting breakage, are arranged in such a way that two loops or rings are arranged on one side and another and on the security fence V on the other side of the railway track 18, likewise, the associated distribution boxes 20, have two loops or rings on one side and another, thus controlling each signal analyzer and each concentrator eight zones of up to 500 meters.

Thus, the security fences arranged on one side and another of the railway track 18 are mounted, symmetrically, in the image and likeness of each other.

Likewise, it is observed how the installation presents the corresponding power supply line 9 of the signal analyzers and the concentrators, as well as the communication line 7 between the signal analyzers and concentrators, as well as with the control center 8.

Emphasizing the fiber optic cable we can indicate that it has enough resistance so that it does not break before manipulation of the fence, (blows, traction, thrust, while the fence does not break or yield, so that its breakage occurs when either it is cut as an action to cut the mesh, or it is broken when the acting forces are already breaking the mesh. On the other hand, as for the mimetization of the fiber optic cable it can be indicated that the appearance of the sheath outside of the fiber, that is, diameter and appearance as well as the touch, are equal to that of the wire rods that make up the fence, and, in addition, the color is also equal to that of the wire rods. That is, if the wire rods are Galvanized fiber cable is placed whose outer appearance is that of galvanized wire rods, and, if the wire rods are painted, the fiber cable has the same color as the wire rods.

Finally, indicate that the watertight boxes that contain the elements related to both the analyzers and the concentrators, have a microswitch to detect that they have been opened, as protection against possible sabotage.

Claims

1 .- DEVICE intrusion detector guardrails, fences being of the type consisting of:

> a plurality of posts anchored to the ground defining the perimeter to be protected, and;

> metal meshes fixed between the posts having the corresponding tension wires;

being useful to prevent the passage to the area to be protected, characterized in that the security fence (1) incorporates:

> a plurality of multimodal fiber optic cables (3) mimicked with the metal meshes forming the security fence, according to their entire length;

> a series of signal analyzers (5, 5 ', 5 ", ..) housed in sealed boxes (4), which are associated with at least one pair of fiber optic cables (3), each mounted of them, forming a redundant ring;

> a variety of concentrators (6, 6 ', 6 ", ..) of technology similar to signal analyzers with the incorporation of a connectivity module (21), being also housed in respective sealed boxes (4) and those associated with at least one pair of fiber optic cables (3), mounted each of them, forming a redundant ring;

> a communication line (7) of the signal analyzers and concentrators laid along the perimeter to be protected;

> a control center (8) with which the communication line (7) communicates, so that the signal analyzers (5, 5 ', 5 ", ..) comprise:

• an electronic detection module (1 1) with the corresponding electronic control unit and connections (12) of the pairs of fiber optic cables (3) and digital inputs and outputs (13);

• a data communication module (14) with the corresponding control unit, communicated with the electronic detection module (1 1), as well as with the adjacent signal analyzers and / or concentrator;

· A climate management module (15) with the corresponding control unit, communicated with the data communication module (14), and which controls the climate control elements (16);

• an energy supply management module (17) that receives power from the general network (9) or from an alternative source (10) and supplies power to the different modules of the analyzer. 2 - DEVICE intrusion detector guardrails, according to claim 1, wherein the plurality of fiber optic cables (3) a data stream by simple interruption is transmitted indicative of breakage of the optical fiber .

3 - DEVICE intrusion detector guardrails, according to claim 1, characterized in that the elements climate control (16) are defined by a temperature sensor and a moisture sensor associated with a resistance to an automatic valve discharge of internal pressure and a fan, controlling the rapid drops and rises in temperature inside the watertight boxes (4).

4 - DEVICE intrusion detector guardrails according ^to claim 1, wherein each number signal analyzer (5, 5 ', 5 ", ..) there will be a hub (6, 6', 6 ", ..).

5 - DEVICE intrusion detector guardrails according ^to claim 1, characterized in that the energy supply for the signal analyzer (5, 5 ', 5 ", ..) and concentrators (6, 6', 6 ", ..), along the security perimeter, the corresponding supply of the general network (9) or an alternative energy source is available.

6 - DEVICE intrusion detector guardrails according ^to claim 6, wherein the alternative source of supply of each of the analyzers and energy concentrators is defined by some solar panels (10).

7 - DEVICE intrusion detector guardrails according ^to claim 1, characterized in that in each of the cofferdams (4) for housing the signal analyzer (5, 5 ', 5 ", ..) and of the concentrators (6, 6 ', 6 ", ..), at least one battery is available.

8 ^a - INTRUSION DETECTOR DEVICE IN SECURITY VALVES, according to claim 1, characterized in that associated with all or part of the watertight boxes (4) for housing the signal analyzer (5, 5 ', 5 ", ..) and concentrators (6, 6', 6", ..), you can have respective spotlights and / or vision cameras.