WO2016166393A1

WO2016166393A1 - Sensor system for protective fence

Info

Publication number: WO2016166393A1
Application number: PCT/ES2016/070218
Authority: WO
Inventors: César SALLEN ROSELLÓ; Roberto Torres Pueo
Original assignee: Proytecsa Security, S.L.
Priority date: 2015-04-15
Filing date: 2016-03-30
Publication date: 2016-10-20
Also published as: ES2549073B1; ES2549073A1

Abstract

The invention relates to a sensor system for a protective fence, being of the type of fence comprising a series of posts anchored to the ground, between which different types of mesh are disposed, including means for detecting an intrusion attempt, such that the sensor system comprises: at least one cable sensor, camouflaged on and/or embedded in the fence itself, having a variable number of fibre optics; shielded linking tubes continuing the cable sensor in entrances, tunnels, bridges, elevated paths etc.; fusion boxes in the fence for accommodating fibre optic fusions of the cable sensor and the shielded linking tubes; and concentrators for controlling zones, where sensor cables join together or via the shielded linking tubes, where the different events of the different zones joining there are determined, and from where same are transmitted to a control centre.

Description

SENSOR SYSTEM FOR PROTECTIVE FLUSHING DESCRIPTION OBJECT OF THE INVENTION

The following invention, as expressed in the statement of the present specification, refers to a sensor system for protective fencing, being of the type of protective fences of special utility for its assembly in the protection of road enclosures and long paths that require a certain level of security, with the purpose of detecting intrusion based on the cutting, breaking or forcing of the protective fence, based on different types of meshes, such as, for example, simple twist wire meshes. Thus, along the protective fence, a sensor cable, mimicked and / or embedded in the fence itself, of a variable number of optical fibers can be incorporated at various heights, reducing the detection capacity of an intrusive potential , and by means of the variable number of optical fibers that form it, it is possible to be able to differentiate the events of fence intrusion, fence accesses, overpasses, tunnels or bridges.

SCOPE

In this report a sensor system for protective fencing is described, which is of special application for mounting in the protection of long perimeter, enclosure and road paths that must have a certain level of safety.

BACKGROUND OF THE INVENTION Conventionally, different fencing means have been used in the protection of certain enclosures, so that among the structural systems used, in which no physical presence is required, we can consider what constitutes a wall or wall topped by a barbed wire, with no added element. Entering to consider different fences that are intended to prevent the passage to certain areas, we can consider that system that is constituted by a pair of fences, parallel to each other, installed throughout the area to be protected and whose fences are formed by use support profiles between which a metal network is arranged. Likewise, the support profiles, in a first practice, in their upper part, can be finished off in at least one inclined section, between whose inclined sections several rows of barbed wire are arranged.

In a second practical practice, the support profiles can be finished off according to two inclined sections, on both sides, several rows of barbed wire being left between them, while in their upper central part between the two inclined sections, which define a space in "V", a spiral roll of barbed wire can be placed.

Thus, on the barbed wires arranged between the inclined sections in which the fence support profiles are finished, stairs or other similar elements can be placed in order to access the upper part of the fence and by placing some protective element on barbed wires, such as simple cardboard, in order to avoid cuts, to pass the fence without suffering any damage.

Likewise, in relation to the inner face of the first protective fence, one or several spiral rolls of barbed wire can be arranged, the rolls of which can be arranged according to different arrangements. The barbed wires that define the spiral roll can have blades of different shapes, with the disadvantage of being able to cause wounds of different consideration to those people who try to pass the fence.

With this configuration, there is the disadvantage that, in addition to not being infallible, when it comes to "saving" the protection fence described, people who try it can suffer significant accidents, mainly as a result of serious cuts.

On the other hand, we can cite the utility model document ES 1 066 931 which describes a: "Protective fencing device", which is constituted by a plurality of posts anchored to the ground between which a mesh defined by a rectangular framework of steel wire is mounted; a plurality of angular plates, mounted on the upper part of the mesh by one of its wings, presenting its other wing, in an orthogonal position, a small orified lug; a serpent through the holes of the lugs of the angular plates, and a guide, of section in "U", integral to the mesh, between posts, which houses a sensor defined by a transducer cable that inside houses a fiber optic .

Likewise, we can consider document ES 1 068 493 in which an "anti-intrusion fence" is described, so that at least one conductive wire is integrated in the network of the modules, which defines a prestressing truss detector, and / or, superiorly, to the fencing forming modules incorporates an anti-skip sensor, according to its entire length, defined by a pair of hinged profiles held in position by a plurality of springs, leaving a first profile integral to the fence and the second profile is left with the possibility of turning with respect to both sides of the vertical plane to the axis of rotation and incorporating between both profiles a plurality of sensors detecting the rotation of the second profile.

Finally, we can consider the document ES 1 068 893 in which an "anti-intrusion fence" is described, in which it presents some posts anchored to the ground with a "U" section attached and fixing to its soul a side of the frame that It forms the two adjacent modules that converge in it, leaving the fixing screws inside its soul inaccessible from the fenced area.

In addition, the profile that defines the sides of the frame that forms the modules has a quadrangular general section with a projection with respect to its front face towards the inside of the shaped frame.

DESCRIPTION OF THE INVENTION A sensor system for protective fencing is described herein, whose fencing is based on a series of posts anchored to the ground between which different types of meshes are arranged, such as, for example, single-twisted wire meshes, in order to close the space to be protected and in whose fencing intrusion detection means are incorporated based on the cut, breakage or forcing, so that it comprises: at least one sensor cable, mimicked and / or embedded in the fence itself, formed by a variable number of optical fibers, arranged at least one height of the protective fence,

armored link hoses, formed by a variable number of optical fibers, giving continuity to the sensor cable in accesses, tunnels, bridges and overpasses; fusion boxes mounted on the protective fence for housing the fusions of the optical fibers of the sensor cable and the optical fibers of the associated armored link hose, and;

zone control concentrator where sensor cables converge in themselves or through armored link hoses and where the events of the confluent areas are elucidated and from where they are transmitted to a control center, also detecting whether the attempted intrusion It occurs in:

> a fence section;

> an access, or;

> an overpass, a tunnel or a bridge.

In this way, being the mesh of the simple twist wire type, the sensor cables, of a variable number of optical fibers, are mimicked as tensile wires of the protective mesh of the protective fence itself, hindering its detection in possible intrusion attempts .

Between each pair of contiguous zone control concentrators the sensor cables are arranged along two detection lines in both directions and, at least, at a height, detecting a possible intrusion attempt at two different points between contiguous control concentrators in the zone corresponding, leaving the rest active, which minimizes dark detection areas.

The fusion boxes are fixed to the forming posts of the protective fence by means of plastic flanges, whose fusion boxes are made of suitable polyester to withstand desert environments without affecting salinity, ultraviolet (UV) radiation, or extreme temperatures, Not the abrasion of the sand.

On the other hand, from the control concentrators, the intrusion attempt alarm and its location point are sent, via a communication protocol, to the control center, so that the identification of the intrusion point is detected with an accuracy of +/- 2m.

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 an area of railway track to be controlled, being able to observe a protective fence, on both sides of the track, as well as the control areas "A" between control concentrators contiguous zone.

Figure 2. Shows a detailed view of a zone control concentrator in which two pairs of fiber optic sensor cables converge, having represented four optical fibers in each of them and whose zone control concentrator is connected to a center of control.

Figure 3. It shows a front view of a section of protective fencing in which different control zones "A" are observed every certain distance, such as every 25Km, being able to observe how the fiber optic cable sensors are arranged according to two heights .

Figure 4. It shows a front view of a section of protective fencing in which different control zones are observed, each determined distance, as it can be every 25Km, being able to observe how the sensors by fiber optic cable are anchored to the metal mesh and the posts.

Figure 5. It shows a front view of a fence section in which there is a pedestrian access consisting of a door with a swinging leaf, giving continuity to the sensor by fiber optic cable, as well as fusion boxes and sensor continuity by fiber optic cable under the access door.

Figure 6. Shows a perspective view of a tunnel area, being able to observe the points of attachment of the sensor by fiber optic cable with the armored link hose, at whose junction points the corresponding fusion box will be available.

DESCRIPTION OF A PREFERRED EMBODIMENT In view of the aforementioned figures and in accordance with the numbering adopted we can observe how on both sides of a railroad a protective fence 1 has been mounted, whose protective fence 1 is based on a series of anchored posts 2 to the ground between which different types of meshes 3 can be arranged, in order to close the space to be protected and in whose protective fence 1 intrusion detection means for cutting, breaking or forcing the mesh 3 are incorporated, so comprising, at least, a fiber optic sensor cable 4, mimicked and / or embedded with the protective fence itself, formed by a variable number of optical fibers, arranged at least one fence height, although in a preferred embodiment of the invention will be arranged at two heights. It also incorporates armored link hoses 5 formed by a variable number of optical fibers, giving continuity to the sensor cables 4 in accesses, tunnels, bridges and overpasses.

Likewise, it incorporates fusion boxes 6 in the protective fencing 1 for housing the fusions of the optical fibers of the sensor cables 4 and of the optical fibers of the armored link hoses 5, and, control concentrators 7 in the area where sensor cables 4 converge on themselves or through the armored link hoses 5, where the different events of the different areas there are elucidated, and from where they are transmitted to a control center.

In addition, said control concentrators 7 house the control electronics that control the integrity of the fiber optic sensor cables 4 and identify the intrusion point, detecting whether the intrusion attempt occurs in a fence section; an access, or; an overpass, a tunnel or a bridge.

We understand by fencing section those areas of the protective fence 1 that remain between posts 2 with the meshes 3 with the fiber optic sensor cables 4, we understand by access those areas in which there is a door 8 of pedestrian crossing or vehicles, logically, The high pass, tunnel or bridge means those areas of the protective fence 1 in which said elements are located. In order to obtain a perfect mimicry and when it comes to protective fences 1 based on simple torsion wire meshes, the fiber optic sensor cables 4 act as tensors of the mesh itself, making it difficult to detect possible intrusion attempts.

Between each pair of contiguous zone control concentrators 7 the optical fibers of the corresponding sensor cable 4 are arranged, according to a preferred embodiment, according to two heights, as observed in different figures of the designs, and also, by means of a pair of optical fibers, an intrusion detection is allowed in both directions, since one optical fiber is connected to a control hub and the other optical fiber is connected to the other control hub and at least at a height, and, thus, by detecting a possible intrusion attempt at two different points between adjacent control concentrators 7 of the corresponding "A" zone, the remainder being active, thereby minimizing the dark detection zones.

The fusion boxes 6 are fixed to the posts 2 forming the protective fence 1 by means of plastic flanges, whose fusion boxes 6 are made of suitable polyester to withstand desert environments without affecting salinity, ultraviolet (UV) radiation, or extreme temperatures, or sand abrasion.

On the other hand, from the control concentrators 7, the intrusion attempt alarm and its location point are sent, via a communication protocol, to the control center 9, so that the identification of the intrusion point is detected with an accuracy of +/- 2m, and the area having a length of 25Km.

In figure 2 of the designs, by way of example, the fiber optic sensor cables 4 with four optical fibers have been shown, although they, as indicated, can incorporate a variable number of optical fibers, so that The upper sensor cable 4 incorporates two optical fibers 4 'for cut detection or the like in any section of the protective fence and two other optical fibers 4 "for intrusion detection in access doors 8.

On the other hand, the lower sensor cable 4 incorporates two optical fibers 4 'for cutting detection or the like in any section of the protective fence and two other optical fibers 4 "for intrusion detection in bridges, overpasses or tunnels.

In short, there are two sensor cables 4, each consisting of a variable number of optical fibers, so that, by way of example, a first sensor cable 4 is installed at the bottom of the protective fence and detects the following:

2 optical fibers 4 'for detection of upper mesh cutting, one connected to a zone control concentrator 7 and the other to the other zone control concentrator 7, between whose concentrators the corresponding zone "A" is controlled and which can comprise a length of 25Km;

2 optical fibers 4 "to detect cut in access (doors 8), one connected to a zone control hub 7 and the other to the other zone control hub 7, which control the corresponding zone" A ";

?! a variable number of free optical fibers, one half connected to a control hub 7 of zone "A" and the other half to the other control hub

7 of zone "A", and can be used when necessary for other types of control;

The second fiber optic sensor cable 4 is installed on top of the protective mesh and, by way of example, detects the following:

?! 2 optical fibers 4 'for detecting lower cut of the mesh, one connected to a zone control concentrator 7 and the other to the other zone control concentrator 7, between which they control the corresponding zone "A";

2 optical fibers 4 "'to detect cutting in high passages, tunnels and bridges, one connected to a zone control concentrator 7 and the other to the other zone control concentrator 7, between which they control the corresponding zone" A ";

s a variable number of free fibers, one half being connected to a zone control hub 7 and the other half to the other zone control hub 7, which can be used when necessary for other types of control.

In figure 3 of the designs it is observed that although in a fiber optic sensor cable 4 there are, for example, two cuts 10 and 10 ', by incorporating two lines of optical fibers 4' for their detection only remains as a dark area of detection of the space between said cuts and the rest is active, since, by means of a 4 'optical fiber, a side and by means of the other optical fiber 4 'the other side will be controlled, up to the adjacent concentrators 7 to which each one of them is connected.

On the other hand, in the case of cuts in both sensor cables 4, total sensorization can be maintained, since one of the optical fibers 4 'will still be connected to the corresponding zone control concentrator 7.

In figure 5 of the designs, it can be seen that before a door 8 of access to the sensor cable 4 of the cut-off optical fiber or similar in section, continuity is given by means of an armored link hose 5 that passes below the same, while the sensor cable 4 is given continuity to the fusion box 6 in order to obtain the detection in the access door 8.

In figure 6 of the designs it can be seen that before a tunnel by means of armored link hoses 5 continuity is given to the fiber optic sensor cable 4, connecting them to the corresponding fusion boxes 6 (not shown but indicating their point of location) and introducing the armored link hoses 5 inside the tunnel, to the next fusion box for connection. In the case of an overpass or bridge, similar actions will be taken.

In this way, it can be detected that in the, for example, point "B" an intrusion attempt has occurred.

The sensor cables 4 and the armored link hoses 5 are anti-rodent, withstand high and low temperatures and have excellent characteristics against traction, torsion, etc.

Through the described means it is possible to: avoid false alarms;

minimize dark areas;

intrusion detection whether it is by cutting, breaking or forcing;

fence intrusion detection along it differentiating the place where it occurs (fence section, access or bridges, overpasses or tunnels);

low installation cost and low maintenance cost; > immunity to disturbances of electromagnetic origin;

> immunity to climatic factors, vegetation or animal actions;

> does not produce interference;

> ease of repair before an intentional cut;

> sensor not sabotaged;

> great distances to cover.

Claims

1 .- PROTECTOR FENCE SYSTEM FOR SENSOR whose fencing is based on a series of posts anchored to the ground between different types of stitches, in order to close the space to be protected and in which are arranged fenced detecting means are incorporated attempted intrusion based on cutting, breaking or forcing, characterized in that it comprises: at least one sensor cable (4), mimicked and / or embedded in the protective fence itself (1), formed by a variable number of optical fibers, arranged at least one height of the protective fence (1),

shielded link hoses (5), formed by a variable number of optical fibers, giving continuity to the sensor cables (4) in accesses, tunnels, bridges and overpasses;

fusion boxes (6) mounted on the protective fencing (1) for accommodation of the fusions of the optical fibers of the sensor cables (4) and the optical fibers of the shielded connecting hose hoses (5), and;

control hub (7) of zone where sensor cables (4) converge in themselves or through shielded link hoses (5) and where the events of the different areas there are elucidated and from where they are transmitted to a control center , also detecting if the intrusion attempt occurs in:

> a fence section;

> an access, or;

> an overpass, a tunnel or a bridge.

2 - SENSOR SYSTEM FOR GATED PROTECTOR according to 1 claim, wherein being the mesh (3) of wire type single torsional sensor cables (4), a variable number of optical fibers, blend as tension wires of the mesh (3) forming the protective fence (1).

3 .- PROTECTOR FENCE SYSTEM FOR SENSOR according to claim 1, characterized in that between each pair of concentrators control (7) of adjacent cables area sensors are arranged along two lines detection in both directions and, at least, at a height, detecting a possible intrusion attempt at two points different between control concentrators (7) contiguous of the corresponding zone, the remainder being active.

4 ^a - SENSOR SYSTEM FOR PROTECTIVE FLUSH, according ^to claim 1, characterized in that the fusion boxes (6) are fixed to the posts (2) forming the protective fence (1) by means of plastic flanges.

5 ^a - SENSOR SYSTEM FOR PROTECTIVE FLUSH, according ^to claim 1, characterized in that the intrusion attempt alarm and the location point thereof are sent from a control protocol (7) to the control protocol (7). control center.