EP2428941A1 - Fencing panel protected by an alarm and fence assembly - Google Patents

Abstract

The alarmed piece fence section (100) has a frame and a lattice mat (20). The lattice mat is formed by wave-like mold pipes or filling rods. The pipes and filling rods are merged with each other and are arranged horizontal and vertical manner. The lattice mat is enclosed with three edge area in the frame. An independent claim is also included for a fence system with a fence post.

Description

The invention relates to an alarm-secured fence panel having the features of the preamble of claim 1.

Such fence panels are used for outdoor security. The incorporated signal cables should detect intrusion attempts and report to an alarm center.

Grid bars mats are known in which horizontal and vertical filler bars intersect and are welded together at the points of intersection. At least a subset of the filler rods is formed hollow inside, so tubular, so that a signal cable can be fed. These signal cables can detect a severing of the filler rods or, depending on the design, also a strong deformation. The grid mats have proven themselves in principle.

The disadvantage, however, is that with the known fence field adaptation to terrain slopes is difficult. If the terrain rises along the intended fence line, fence fields made of lattice rod mats can only be arranged in a stepped way. This requires, on the one hand, that the height of the fence posts above the floor level must be higher than that of the fence fields, so that the staircase-shaped arrangement is even possible. Also, the fence fields must be correspondingly higher than when installed in a level railing, so that in a lower area of the lower edge no gap is created, which allows a Unterkriechen. On the higher side of the fence field, however, the area of the grid mat must be buried in the ground. In addition, the stair-shaped guide of the upper edge of the fence field disturbs.

Object of the present invention is thus to provide a fence panel that allows adaptation to terrain inclinations.

This object is achieved in that the grid mat is formed by wave-shaped tubes and / or filler rods, wherein the horizontally or vertically arranged tubes and filler rods are intertwined.

Due to the interweaving can be dispensed with spot welds in the crossing areas, which facilitates the production and it also allows, for example, to use finished coated tubes and filler rods without having to subsequently destroy the surface coating and rework. For example, in the intended Color powder coated aluminum tubes are used.

The grid mat in a fence panel according to the invention is thus formed in the manner of a textile fabric with warp and weft threads. The braided structure, together with the great inherent rigidity of the tubes and filler rods, in particular made of metal, having a diameter of, in particular, 4 mm to 10 mm, provide a high strength of the overall composite, but within certain limits also allow partial deformation. According to the invention, it is possible to obtain from the initially formed as a rectangle fence panel by shifting the parallel, in particular vertical edges a diamond-shaped contour and thereby allow the adaptation of the fence panel to a slope of the terrain.

As far as the area to be secured is level, the fence panel according to the invention is used in a conventional rectangular configuration, and also the edges of the frame, in which the grid mat is bordered, abut each other at right angles.

In a rising terrain section, the lateral, vertical edges of the fence panel are shifted against each other, so that results in a slightly diamond-shaped configuration. Accordingly, then include vertical and horizontal frame sections at an angle not equal to 90 °. As a result, the fence panel according to the invention then runs with its upper and lower edges parallel to the terrain surface. The same applies to the horizontal tubes and filler rods within the fence, which also run parallel to the terrain. At the same time stay but the vertical tubes and filler bars of the grid mat perpendicular, and thus aligned parallel to the fence posts, so that an appealing visual appearance results, without affecting the security function of the alarm-secured fence field somehow. In this way, the fence fields on terrain inclinations of up to 20 ° can be adjusted.

It is furthermore essential to the invention that the grid mat is bordered at least with at least three of its edge regions in the frame formed by an in particular U-shaped frame profile, wherein the edge region of the horizontal and vertical tubes or filler rods is fixed in the frame profile.

In any case, must be enclosed in a profile, the vertical edge areas, which serve for connection to fence posts. Depending on whether further securing devices are connected to the lower edge or upper edge, it may possibly be possible to dispense with bordering of a horizontal edge region by means of a frame profile. In order to increase the overall stability of the fence panel, however, the grid mat is preferably bordered on all four edges in an edge profile.

By ensuring that at least some crossing points of the tubes or fill bars are secured in the frame profile so that they can not be pulled out, the entire grid mat is protected from being pulled out of the frame. Attempts to increase the mesh size by pushing apart the intertwined tubes and filler rods or to push the entire grid mat out of the frame by appropriate deformation, are at best using massive force, such as the use of vehicles, etc. possible, but then in any case at least individual tubes containing signal cables are destroyed and an alarm signal is detected.

In the braided composite, the ends of adjacent tubes or filler rods are slightly spread apart from each other below the last cross tube. If a free movement of the ends would be possible, the ends could be bent apart so far that they release the outermost cross bar. If the free mobility of the ends is prevented, however, then the withdrawal of the rod ends from the frame is possible only with massive violence, which in turn inevitably leads to an alarm signal.

The determination of the ends can be made such that in the frame profile profile areas are incorporated, which prevent deflection of the tube or rod ends.

It is also possible, at least the edge-side series of crossing points subsequently, so after alignment of the grid mat according to the terrain slope to weld together. It then suffice a few form-fitting elements such as hooks or cross-bolts in the frame profile to retain the grid mat on the at least one outer cross bar which is parallel to the tube profile and received in this.

It is particularly advantageous to provide a comb strip which can be inserted into the grid mat between two adjacent rows of intersection points, that is to say in a form-fitting manner there intervenes. The comb strip is inserted together with the grid mat in the longitudinal direction in the frame profile. In the frame profile preferably the comb strip is in turn set in grooves on the opposite legs of the frame profile so that they can not be pulled out of the frame profile in the plane of the fence panel, but only in the profile longitudinal direction.

Alternatively, it is possible to form one of the profile legs of the frame profile comb-like and then to hook the frame profile in the grid mat. The open side of the frame profile is then expediently aligned to the rear side, ie towards the object which is to be secured, and closed by suitable cover profiles.

Preferably, the signal cables are meandered through a subset of the vertical tubes and / or the horizontal tubes, as known per se. The distance of the equipped with signal cables tubes is chosen so that even when removing the intermediate, unsecured filler bars no sufficiently large opening can be created for a climb.

Advantageously, the signal cables between the ends of the tubes are guided in a loop which is received within the frame profile. The signal cable is protected there from environmental influences, so that false alarms are avoided.

It is also possible to stretch the signal cables taut by the loops are set in the frame profile, so that not only a violent severing detectable is, but possibly also a tearing in consequence to large deformation of parts of the fence field.

Furthermore, such signal cables can be provided, in which already by a stronger deflection or bending of the tubes in which they are guided, a change in property occurs, which is detectable by an evaluation. Modifiable properties include changes in electrical (ohmic) resistance, characteristic impedance of coaxial cables, or optical attenuation of a fiber optic cable.

The waveform of the individual tubes of the fence panel according to the invention is particularly advantageous in connection with the signal cable, because it comes very quickly to larger partial overstretching or buckling of the tubes by the wave-like pre-deformation of the individual tubes in an attack with large forces and then at least one signal cable so is changed that an alarm signal is detectable.

Finally, in addition to the electrical or optical signal cables in the same tube or in adjacent tubes and thin rods made of high-strength steel or steel cables can be fed. These offer increased resistance to sawing and cutting with pliers, and delay a breakthrough attempt with it at least.

To form the frame can be provided, the frame profile sections via corner connector elements, which are inserted into correspondingly formed profile chambers to connect. In particular, it is also possible to provide articulated connector elements with which it is possible is to compensate for angular misalignments of the abutting profile sections for the purpose of adaptation to a terrain surface.

The fence panels according to the invention can be combined to form an advantageous fencing system. Preferably, it is provided that the clear width between adjacent fence posts is smaller than the frame width of the respective fence panel and that the fence panels are pressed by means of a terminal strip to the fence post. In the overall composite of several fence posts, the fence fields are then each at the front of the fence posts and are positively fixed behind the terminal block.

The fact that the fence panels are not arranged in a line with the fence posts, but before, it is possible to move the frame slightly in the space between the terminal block and the front surface of the fence post and thereby both minor differences in fence post spacing as well as smaller angular misalignments of the fence post and / or the fence field before the fence panel is finally fixed by means of terminal block on the fence post.

An inventively designed fence system is designed for the detection of breakthrough attempts, but can also be added to detect people in the run-up to the fence.

It is known in the field or apron surveillance to monitor fence systems by cameras and illuminate the apron area, possibly by infrared lighting to get clear camera images even at night. It is also known to couple sensors in a fence with camera surveillance systems such that cameras are automatically pivoted to a position reported by a sensor in the fence and focused on the fence section from which the signal originates. This monitoring technology for the apron monitoring requires high investment, as appropriate expensive cameras with high-resolution sensors, precise lenses and an equally precise motor control for the pivoting of the cameras are required by at least two axes. In addition, there is a computer unit that performs the coupling with the sensors and the mechanical control of the camera. Another disadvantage of known near-field monitoring systems is the poor image quality in rain and especially in fog. Due to the light scattering of a camera, which is usually further away to monitor a greater length of the fence, no more evaluable images to obtain.

In a further development of the fencing system according to the invention is therefore proposed to use the modular design and in the present invention used frame profiles cable management such that in many, so for example in every second or even in each fence post or frame profile, a camera module is installed by a relatively inexpensive CCD camera can be formed. With a suitable wide-angle lens, it is possible to detect a large sector on both sides of the mounting location. Since only attacks on the fence to be detected, so the presence of people or property in the immediate near field of a maximum of five to eight meters in front of the fence are detected cheap and in the construction of small CCD cameras can be used with correspondingly inexpensive lenses. The short range does not present a disadvantage in good visibility, as a complete monitoring of the entire length is still possible, but this is still given even in the case of heavy rain and fog on the distance to be monitored, while greater visibility in these cases is no longer possible are. The connection of the individual camera modules can be made via a bus system, which is either laid parallel to the sensor lines of the fence field or shared with them.

Surprisingly, the integration of a large number of closely spaced camera modules does not lead to an increase, but even to a reduction in the monitoring effort: large cameras with a wide field of view capture a correspondingly large image field and / or have a large depth of focus, so that the probability that the image in the monitored area is already changing due to natural influences, is great. Evaluation via automatic image recognition methods for state changes is therefore susceptible to errors, so that such images then have to be activated very frequently for subsequent inspection by the operating personnel. On the other hand, many small inexpensive cameras with a short view can be mounted and adjusted in such a way that the image in the field of vision really only changes when persons or larger animals arrive directly in front of the fence. Thus, a continuous computerized monitoring of the plurality of integrated cameras in the fence system can be made, the number of generated from the automatic image recognition Alarm messages, which result in a manual visual inspection, decrease.

A further advantageous embodiment of the fence system provides to integrate spotlights in the fence post. These serve to illuminate the near field, improve the image quality of the cameras used in the dark and also serve to deter people if white light is used. For illumination, however, infrared emitters can also be used in order to obtain sharp black and white images, especially in the dark in conjunction with the cameras used.

The radiators are preferably designed as so-called power LEDs, which generate a high luminous flux with very low power consumption and, moreover, enable a miniaturized design. The normal profile widths of a fence post or of the frame profile are in any case sufficient to integrate at least one LED spotlight directly at the front of the post, at the top of which is placed on the cantilever or on the border profile of the fence panel.

It is advantageous to mount the spotlight and camera under a common protective glass. If the spotlight simply shuts off or does not switch off when the protective glass is clear, the camera image in the dark is just dark and out of focus. If, on the other hand, the fence system is sabotaged from the outside by, for example, spraying the camera opening, but also in the case of heavy soiling, the camera and spotlight are simultaneously covered. This creates in the dark on the back of the protective glass, a strong light scattering in the Camera is visible as a bright but contourless image, so that control by the guards is indicated.

As a further embodiment, instead of the cameras or in addition to this, ultrasonic sensors can be integrated into the fence posts and / or the frame profile. These are also inexpensive, so that a complete monitoring of the whole fence on the approach of people is easily possible.

In such a further developed fence system, the linking of the individual modules is advantageous, for example in such a way that in a detection of persons in the near field, which is possible by said automated image analysis, the emitters are switched on to signal a possible attacker that his Stay in the near field of the fence was captured.

Fig. 1

eine erfindungsgemäße Zaunanlage in Ansicht von vorn;

Fig. 2

eine Gittermatte mit eingesetzter Kammleiste von vorn;

Fig. 3

eine Gittermatte im Randbereich in perspektivischer, teilweise geschnittener Darstellung;

Fig. 4

eine Gittermatte im Randbereich in perspektivischer Darstellung;

Fig. 5

eine Gittermatte im Randbereich in perspektivischer Darstellung;

Fig. 6

ein Profilquerschnitt eines Rahmenprofils;

Fig. 7

eine Übersteigsicherungsanlage in seitlicher Ansicht und

Fig. 8

ein alternatives Rahmenprofil in perspektivischer Ansicht.

The invention will be explained in more detail with reference to the drawing. The figures show in detail:

Fig. 1

a fencing system according to the invention in front view;

Fig. 2

a grid mat with inserted comb strip from the front;

Fig. 3

a grid mat in the edge region in perspective, partially sectioned representation;

Fig. 4

a grid mat in the edge region in perspective view;

Fig. 5

a grid mat in the edge region in perspective view;

Fig. 6

a profile cross-section of a frame profile;

Fig. 7

a Übersteigsicherungsanlage in lateral view and

Fig. 8

an alternative frame profile in perspective view.

Fig. 1 shows a finished fence system consisting of three fence posts 40 and two intervening fence panels 100th

The fence panels 100 each consist of a grid mat 20, which is bordered with its edge regions in a frame 10. The fence panel abuts against a front surface of a fence post 40 and is pressed against it via a clamping strip 41.

The terminal strip 41 can be secured against sabotage by a so-called cover contact, so that the loosening of the terminal strip leads to alarm triggering.

The fence 200 according to the in Fig. 1 illustrated embodiment also has a Übersteigsicherungsanlage 50. This in turn includes base elements 53 which are placed on the tops of the fence posts 40. At this boom 51 are hinged. The brackets 51 serve as a holder for a plurality of parallel wires 54, which may be barbed wire, but also to other signal wires. The construction and assembly a fence panel 100 according to the invention are described below with reference to the FIGS. 2 to 6 explained in more detail.

Fig. 2 shows a grid mat 20 consisting of interwoven horizontal tubes 21 and vertical tubes 22. The hollow tubes 21, 22 serve to receive signal cables. For reasons of cost and stability, a plurality of filler rods made of solid material can be provided in each case between them.

In particular, tubes or fill bars made of aluminum are used. On the one hand, they have good corrosion resistance. On the other hand, they can be deformed well to produce from a first elongated, smooth tube or a rod corrugated pipe sections, which make it possible to be interlaced with transversely arranged further tubes or fill bars.

In the area of the lower edge of in Fig. 2 fence panel 100 shown is a comb strip 30 is shown. This is in this embodiment, a flat profile which is slotted at regular intervals, so that therebetween projecting prongs 31, which engage in the mesh between the individual vertical filler rods or tubes 22.

In Fig. 3 It is shown how the fence panel 20 is inserted with the comb strip 30 inserted in the lower area in a frame section 10. As in particular the cross-sectional drawing in Fig. 6 shows, the frame profile 10 has in its upper region opposing grooves 11 which are matched to the comb profile 30 to the inclusion of the comb profile 30 by inserting to allow from the side in the longitudinal direction. Transverse to the comb profile is then set.

Beneath the grooves 11 webs 12 are provided which serve in particular to prevent lateral deflection of the obliquely set ends of the vertical filler rods 22 below the lowermost cross bar 21.

Below this, in turn, profile webs 14 are provided, which form a fixed stop for the end faces of the pipe ends. This prevents the ends of the tubes and filler rods 21, 22 from slipping down to the bottom of the frame profile 10. In this way forms below the ends of a protected chamber 13, which is provided for the reception of signal cables. It is thus prevented that pipe ends press on signal cable and it could come through a constant movement of the fence panel as a result of wind and the like to a chafing of the cable.

In Fig. 3 not shown are elastomeric damping elements 17, but in Fig. 6 are indicated. These serve to fix the accommodated within the frame profile 10 end portions of the tubes 21, 22 and filler rods in position and to prevent striking of the metal tubes or filler rods to the metal profile frame 10 also, so that possible noise during movement of the grid mat 20 are prohibited in the frame 10.

After a first frame profile 10 has been pushed from the side onto the grid mat 20 with the comb profile 30, as in Fig. 3 is now displayed on a at a right angle thereto arranged further edge of the grid mat 20, a further comb strip 30 is inserted, as in Fig. 4 shown.

The comb strip 30 is here again arranged between the last and the penultimate row of crossing points 26, so that the grid mat 20 can be fixed positively in the frame profile 10, as soon as another frame profile 10 has been postponed, as in Fig. 5 shown.

Since there is no fixed connection between horizontal and vertical tubes 21, 22 and filler bars at the crossing points of the grid mat 20 and since the profile sections 10 hold themselves on the grid mat 20 via the comb bars 30, a non-rectangular configuration of the fence panel 100, ie one Diamond-shaped configuration, possible at any time, by simply opposing edges of the fence panel are moved against each other.

As long as the frame profiles 10 are not directly connected to each other, but only via their positive engagement in the grid mat, a special adaptation of the frame to the diamond-shaped configuration is not essential. A certain divergence of the frame profile sections 10 in the corner has no security-related disadvantages.

However, it is also possible, the vertical frame profile 10, which in Fig. 5 bottom left, with a miter angle of less than 90 ° cut, so that it exactly to a mitred upper profile section 10, the in Fig. 5 from left to right right over the entire length of the grid mat 20 runs to create.

Fig. 10 shows a section of a fully assembled fence system 100 in a section slightly above a stand. Clearly visible is the trapezoidal profile contour of the fence post 40. At the front two grid mats 20 are applied and fixed by the terminal block 41. Comb strips 30 engage in the grid mat 20 and at the same time fixed in the frame profile 10. Pulling out the grid mat 20 from the frame is thus effectively prevented.

As FIG. 7 shows, the clamping bar 41 preferably runs at least at its upper end, possibly also at the lower end, in an arc that extends to the mounting surface on the front of the fence post 40 so that there is no starting point for lever tools or the like.

Incidentally, shows Fig. 7 a patch on the head of a fence post 40 Übersteigsicherungsanlage 50, which consists essentially of a post head 53 and arms 51, 52.

In the illustrated embodiment, two apart spread arms 51, 52 are provided, which are connected to a common bearing 55 hingedly connected to the post head 53. Below the bearing 55 congruent recesses 56 are present both in the areas belonging to the post head 53 areas, as well as in the end portions of the two arms 51, 52. Through the recess 56, a signal cable can be passed through. When trying the On the other hand, due to the weight of the person hanging on the boom 51 or 52, a deflection relative to the post head 53 is effected, so that the cable guided in the recesses 56 is sheared off and a corresponding alarm signal is triggered.

The boom 50 is with all the details mentioned in FIG. 9 shown again in a perspective view.

FIG. 8 shows an alternative frame profile 10 '. A comb strip for engagement in the grid mat 20 is given here in the form of the upper profile leg 11 '. The edge region of the grid mat 20 is inserted for mounting obliquely in the slot 12 'and then pivoted so high that the vertical tubes 22 are guided in the slots in the profile leg 11' and at least one transverse tube 21 is fixed positively.

Claims (15)

An alarm-secured fence panel (100), comprising a frame (10, 10 ') and at least one grid mat (20) inserted therein, which is formed at least partially from thin tubes (21, 22) and / or filler rods, wherein at least in a subset of Tubes (21, 22) electrical and / or optical signal cable (25) are retracted.
characterized,
in that the grid mat is formed by wave-shaped tubes (21, 22) and / or filler rods, wherein horizontally and vertically arranged tubes and / or filler rods (21, 22) are intertwined with each other; and
in that the grid mat (20) is bordered in at least three of its edge regions in a frame (10, 10 '), wherein a plurality of ends and / or a plurality of crossing points (26) of the horizontal and vertical tubes (21, 22) and / or filler rods in the Frame profile (10, 10 ') is fixed. Fence panel (100) according to claim 1, characterized in that the frame profiles (10) are U-shaped and are open to the grid mat (20) and that a comb strip (30) is provided,
insertable between two adjacent rows of crossing points (26) in the grid mat (20) is and engages with their prongs (31) between adjacent tubes (21, 22) or filler rods, and which is fixed in the frame profile (10) transversely to the plane of the grid mat positively. Fence panel according to claim 1, characterized in that a lattice mat facing profile leg (11 ') of the frame profile (10') is formed comb-like. Fence panel (100) according to one of claims 1 to 3, characterized in that the signal cable meandering at least through a subset of the vertical tubes (21) and / or the horizontal tubes (22) is guided, wherein between the ends of the tubes (21, 22) a signal cable loop is formed, which is guided within the frame profile (10; 10 '). Fence panel (100) according to one of claims 1 to 4, characterized in that the frame profile (10, 10 ') has stop elements (12) for the lateral fixing of the tube and / or rod ends Fence panel (100) according to claim 5, characterized in that the signal cable loops (26) in a below the stop elements (12) arranged profile chamber (13) are guided. Fence panel (100) according to at least one of claims 1 to 6, characterized in that on both outer legs of the frame profile (10; 10 ') elastomeric damping elements (17) are arranged, between which the edge region of the grid mat (20) is enclosed. Fence panel (100) according to one of claims 1 to 7, characterized in that in the frame profile stop elements (15) for limiting the lateral deflection of the ends of the tubes (21, 22) and / or filler rods are provided transversely to the plane of the grid mat (20). Fence panel (100) according to any one of claims 1 to 8, characterized in that changes by mechanical deflection of a signal cable contained tube of the ohmic resistance, the characteristic impedance or the optical attenuation of the retracted signal cable. Fence panel (100) according to one of claims 1 to 9, characterized in that the signal cable is fixed in each case in both end regions of the tubes. Fence panel (100) according to one of claims 1 to 10, characterized in that at right angles to each other employed frame profile sections (10) are interconnected via an inserted corner connector element. Fencing system (200), comprising at least two fence posts (40) and a fence panel (100) bordered therebetween according to at least one of claims 1 to 11. Fencing system (200) according to claim 12, characterized in that the clear width between adjacent fence posts (40) is smaller than the frame width of the fence panel (100) and that the fence panels (100) with their frame (10, 10 ') via a terminal block (41) are pressed against the fence post (40). Fencing system (200) according to claim 12 or 13, characterized by a Übersteigsicherungsanlage (50) formed by a plurality of parallel tensioned wires (54) is, which are guided on arms (51, 52), which are each placed on the fence posts (40). Fence system (200) according to claim 14, characterized in that the arms (51, 52) are articulated to a post head (53) and between the cantilever (51, 52) and the post head (53) at least one sensor element is arranged.

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