ES2701506T3 - Automatic exterior portal with at least one scanner that detects the presence of at least one object near the portal - Google Patents

Abstract

External automatic portal (1, 1a) presenting at least a movable portion (3, 3a) that slides in a movement zone from an open position to a closed position through a passage of a delimited space and vice versa, the outer automatic portal (1, 1a) comprising means (2) for detecting the presence of at least one object in the movement zone, the detection means comprising at least one scanner (2) disposed at an upper end of the passage, the scanner (2) generating at least one scanning plane (8) that at least partially borders the displacement zone of said at least one movable portion (3, 3a) being substantially vertical or forming an acute angle with respect to a vertical plane containing the movable portion (3, 3a), in which the scanner (2) is a laser scanner comprising a sending cell and a receiving cell, a light beam being deviated leaving the emitting cell in different positions angular by a rotating mirror to form a scanning plane (8), and comprising several scanning planes (8) that intersect at the level of said at least one scanner (2), the rotating mirror having several inclined faces, each corresponding a scanning plane (8), in which the at least one scanning plane (8) defines at least two distinct and predefined detection zones that are successive according to a passage width dimension and comprising a high security zone (16, 18) and a security zone (17, 19), the default high security zone (16, 18) being an area where the risks of collision or portal jamming (1, 1a) are greatest, the portal further comprising automatic actuation means of the at least one mobile portion (3, 3a), the scanner (2) comprising a microprocessor having control means of the actuating means, the control means being configured to generate and to apply to the drive means different commands between a detection in the high security zone (16, 18) and the safety zone (17, 19), the portal comprising a first and second fixed uprights (4a, 4b) that frame the less partially the passage of the delimited space, the at least one movable portion (3, 3a) of the outer automatic portal (1, 1a) comprising at least one panel (3a), and in which the area (16, 18) high security is in the vicinity of the fixed upright (4a, 4b) through which the panel (3a) penetrates or slides transversely on the side of said fixed upright (4a, 4b) in front of the other fixed upright (4a, 4b).

Description

DESCRIPTION

External automatic portal with at least one scanner that detects the presence of at least one object near the portal The present invention relates to an exterior automatic portal with at least one scanner as a means of detecting the presence of at least one object near the portal. The word portal should be taken in its broad sense as an element of closure of an access located outside (outside buildings), for example, in a road for cars, pedestrians, or private land and also include elements such as barriers or various forms of exterior doors.

It is known that external automatic portals that have one or more mobile portions, called leaves. The movable portion, blocking in the closed position the passage in a delimited space that is to be closed by the portal, can be moved in an area of movement from an open position to a closed position and vice versa.

For example, such automatic portals can have various aspects that are sliding or that have, at least, a leaf that opens by pivoting about an axis. There are numerous applications of such portals, such as residence portals, factory entrance portals or various forms of barriers.

The opening and closing of such automatic portal are usually automated to facilitate the entry of vehicles or people inside the enclosed space that closes, this for reasons of convenience. The opening of the portal can be done by remote control without the driver descending from his vehicle to manually open the portal by maneuvering it.

However, this implies the presence of detection means that can detect the presence of at least one object in the displacement zone of said at least mobile portion of the portal both when it is opened and when it is closed, so that the portal can not collide with said at least one object. There are also risks of the portal clogging during its displacement, in which case it is necessary to stop the means of actuating the portal or reverse the direction of its displacement so as not to damage it.

Usually, the automatic portals are equipped with at least one emitting photoelectric cell that emits a light beam towards a receiving photocell. A break of the beam indicates a presence and prevents the closing of the portal at least when stopping the closing movement.

For the sliding door portals, for which the risk of portal clogging during their displacement is greater than for other types of portals, these can be provided with such photoelectric cells in addition to contact sensors and / or torque limiters of the means of drive to avoid jams between sheets and a fixed amount of portals. This is illustrated in particular in EP 2112316 and FR-A-2731741.

The disadvantage of such measures is that the supervised travel zone is narrow. For example, this zone is limited to a line at low altitude that does not exclude non-detections, for example, for vehicles with ground clearance. Quite often, the detection zone is limited to a line that extends substantially horizontally in the closed or open passage through the portal, this line not allowing this line to detect above or below possible collisions of the portal with at least one object that is in the step.

Document E-A1-1619469 discloses a system for automatic doors. The scanning planes of the scanner are defined for the detection of objects in the detection field.

The problem underlying the present invention is to provide an automatic exterior portal of improved detection means of an object that can be found in the area of displacement of the portal during its opening or closing. In particular, the invention proposes to solve this problem detection means that can substantially cover the area of displacement of the portal over the entire height of the portal and advantageously over its entire width, for example, more than 10 meters or even more.

For this purpose, there is provided, according to the invention, an exterior automatic portal according to claim 1 and having at least one movable portion that slides in an area of movement from an open position to a closed position through a passageway. of a delimited space and vice versa, the exterior automatic portal comprising means for detecting the presence of at least one object in the displacement zone, characterized in that the detection means consist of at least one scanner disposed toward an upper end of the passage, generating the scanner at least one scanning plane at least partially bordering the displacement zone of said at least one movable portion being substantially vertical or at an acute angle with respect to a vertical plane containing the movable portion.

According to the invention, the scanner is a laser scanner comprising a transmitting cell and a receiving cell, a light beam is diverted leaving the emitting cell at different angular positions advantageously by a rotating mirror to form a scanning plane, and the portal comprises several scanning planes that intersect at the level of said at least one scanner; in the case of a rotating mirror, it has several inclined faces, each one corresponding to a scanning plane.

Advantageously, four scanning planes are provided respectively on each side inside or outside the space, the scanning planes delimiting four detection zones.

Advantageously, said at least one scanner has means for varying the speed of rotation of the rotating mirror for scanning at different speeds of the scanning planes or portions of scanning plane and / or scanning frequency variation means in at least one plane or at least a portion of a scanning plane.

According to the invention, the portal is provided with means for automatically activating said at least one mobile portion of the portal, said at least one scanner comprising a microprocessor having means for controlling the means for actuating said at least one mobile portion of the portal and the portal comprises first and second fixed posts that at least partially enclose the passage of the delimited space, the mobile portion of the exterior automatic portal comprising at least one panel or a door connected to a fixed post.

In an embodiment of the invention, said at least one scanner is arranged in at least one fixed portal post.

Advantageously, said at least one post has the shape of a hollow post, passing the electrical connections of at least one scanner inside said post.

Advantageously, the portal is a sliding portal having at least one panel as a mobile portion of the portal, the portal having means for moving said at least one panel towards the first post during the opening of the portal, said at least one portal panel penetrating during opening it in the first pillar or sliding transversely with respect to said pillar, with the first pillar bringing the first scanner to the level of the upper edge of the panel, scanning the first and second scanners the part of the panel located between the first pillar and the second pillar, respectively, inside and outside the delimited space, scanning a third and a fourth scanner the part of the panel that has passed through or slid transversely to the first upright.

Advantageously, the portal has two panels as a mobile portion of the portal, said at least one second portal panel penetrating during its opening in the second post or sliding transversely with respect to said post, the second post presenting four scanners arranged symmetrically with respect to the latter. scanners of the first stile.

In another embodiment of the invention, said at least one scanner is arranged in said at least one panel or leaf in the vicinity of its part connected to a fixed post.

The invention also relates to a method for detecting at least one object in the displacement zone when opening or closing at least one mobile portion of said external automatic portal.

Possibly said at least one scanning plane bordering at least partially the displacement zone of said at least one mobile portion comprises, at least, a high security zone. According to a preferred case, the speed and / or frequency of the scan is greater in the zone of high security than the speed and / or frequency, respectively, in the rest of the scanning plane. Preferably, the high security zone is predetermined as being an area where the risks of collision or clogging of the portal are greater.

The invention also relates to a control of the opening or closing movement of at least one mobile portion of an external automatic portal for which the detection of at least one object in the displacement area when opening or closing the portal is performed in accordance with such detection procedure. The control of the opening or closing movement of said at least one mobile portion of the portal in a different manner according to whether the detection of at least one object that is in the displacement zone of said at least one mobile portion of the portal is performed in a high security zone or in the rest of the exploration plane.

Advantageously, the opening or closing movement of said at least one mobile portion of the portal is reversed and stops after stopping, after a pre-defined stroke movement phase according to the situation considered, the race being able to be total or not, after the detection of at least one object that is in a high security zone.

Other features, objectives and advantages of the present invention will become apparent upon reading the following detailed description and with respect to the accompanying drawings which are given by way of non-limiting examples and in which:

- Figure 1 is a schematic representation of a front view of an exterior automatic portal that does not form

part of the invention,

- figure 1a is a schematic representation of a side view of the external automatic portal shown in figure 1, the scanning planes of the scanner associated with the portal shown in this figure 1a being

Figure 2 is a schematic representation of a top view of the external automatic portal shown in Figure 1, the scanning planes of the scanners associated with the portal shown in this Figure 2 being

- Figure 3 is a schematic representation of a front view of a first embodiment of a portal

external automatic according to the present invention provided with four scanners as detection means, this portal having the form of a sliding portal,

- figure 3a is a schematic representation of a side view of the external automatic portal shown in figure 3, the scanning planes of the scanners associated with the portal shown in this figure 3a being - figure 4 is a schematic representation of a top view of the exterior automatic portal shown in figure 3, the scanning planes of the scanners associated with the portal being shown in this figure 4.

In a general manner, the present invention relates to an external automatic portal 1, 1a provided with at least one scanner 2 to ensure the opening and closing of the external automatic portal, said at least one scanner 2 being arranged in height in a portion 3 mobile portal 1 or a fixed part that frames the portal 1, 1a, for example, their uprights 4, 4a, 4b fixed (also can be called porches) that delimit the passage of the space defined that the portal 1, 1a opens or closes .

In figures 1, 1a and 2, the exterior automatic portal is a swing portal 1 that does not form part of the invention, while in figures 3, 3a and 4, the exterior automatic portal is a sliding portal 1a. The mobile portion 3, 3a of the portal 1, 1a is mobile in a zone of movement from an open position to a closed position of a passage in a delimited space closed by the portal 1, 1a and vice versa.

Without this being limiting, as shown in Figures 1 and 3, the exterior automatic portal 1, 1a may consist of a series of vertical bars, only one of which is referenced 13. In these figures, the bars 13 extend between an upper beam 14 and a lower beam 15 delimiting the external automatic portal 1, 1a at the top and bottom.

With respect to Figures 1, 1a and 2, the illustrated swing portal 1 comprises two hinges 3 which are joined together aligned with each other in the closed position of the portal 1, the hinges then forming the mobile portion of the portal 1. At each end of the wings 3 pointing towards each other, a limit stop 5 is provided which allows to check the alignment of the wings 3 in the closing position of the portal 1.

Each leaf 3 is attached to a fixed post 4 at its end that is adjacent to it, this fixed post 4 being able to have the shape of a post 4. Each fixed post 4 is substantially vertical and at least partially forms the side frame of the portal 1 of swing on each of its sides.

Each leaf 3 can pivot automatically around its fixed post 4, pointing the two wings 3 towards the inside or towards the outside of the space closed by the portal 1. This can entail a risk of collision with an object located in the passage of at least a swing 3 during its turn, this also when opening or closing the swinging portal 1.

The rotation around the respective fixed post 4 of each leaf 3 is obtained under the action of an arm 6 motorized by pivoting means that serve as means for actuating the leaf 3. These pivoting means pull each leaf 3 during the opening and push it when closing portal 1 of swing.

Advantageously, lower and upper ball bearings 7a are provided between each leaf 3 and the lower or upper part respectively of the fixed post 4 associated therewith. These bearings 7, 7a allow the rotation of each leaf 3 in relation to its associated fixed post 4.

With respect to figures 3, 3a and 4, the embodiment of a sliding portal 1a comprises a panel 3a as a mobile portion of the portal 1a mounted on wheels, in figures 3 and 4 two wheels, which is not limiting. These wheels cooperate advantageously with a guide surface, for example, a rail arranged on the ground to open or close the portal 1a.

In closed position, the portal 1a is delimited by two fixed uprights 4a, 4b forming the lateral frame of the sliding portal 1a on each of its sides, these uprights 4a, 4b being advantageously fixed in the form of posts. During its displacement for opening the portal 1a, the panel 3a automatically slides towards one of the fixed posts 4a, 4b, in figures 3 and 4, the first post 4a, and passes through the first post 4a to be completely retracted along a closed surface on this side of the first fixed post 4a, this surface being closed, hereinafter referred to as a wall, which is not limiting. The panel 3a also can not pass through the first post 4a as a fixed post, but slide on the outside of this post transversely thereto.

This displacement is achieved by the means 11 for actuating the portal 1a, which advantageously comprise a rack carried laterally towards the lower part of the portal 1a along the entire length of the portal 1a cooperating with the actuating means 11. The cooperation of the drive means 11 with the rack makes it possible to actuate the external automatic portal 1a both during opening and closing of the portal 1a.

In the following, for a sliding portal 1a, reference will be made to the front end so that its lateral end first penetrate along the wall through or transversely to the first fixed post 4a and to the rear end for the other lateral end that bears against the second fixed post 4b during the closure of the sliding portal 1a.

For such a sliding portal 1a, a closing stop 10 can be provided which indicates the closure of the portal 1a and is carried by the second fixed post 4b that does not pass through the panel 3a of the portal 1a. An opening stop 10a indicating the opening of the portal 1a can also be provided, the panel 3a being traversed or slid along the first fixed post 4a and also having slid along the wall bordering the side side of the portal frame 1a which has the first fixed post 4a. The opening stop 10a is advantageously arranged in the wall at the end of the stroke of the panel 3a, the panel 3a having completely retracted along the wall.

As an example of another embodiment of a sliding portal 1a, if in Figures 3, 3a and 4, the sliding portal 1a is of a single part, presenting only one panel and that is opened by sliding the panel towards only one lateral side of the portal frame, it is also possible that the sliding portal consists of two substantially equivalent panels that are opened by landslides in the opposite direction.

These two panels are in the middle of the passage of the portal in its closed position, while each panel enters its associated lateral side while moving away from each other, the fixed uprights, advantageously in the form of fixed posts, then being symmetrical and traversed respectively by one of the two panels. This embodiment is not shown in the figures.

For the embodiment of the invention shown in FIGS. 3 and 4 and for the derived modes related to the opening and closing of an external automatic portal, it is provided to have at least one scanner 2 for the portal 1, 1a, either in its mobile portion 3, 3a, or else, in a fixed element, for example, a fixed upright 4, 4a, 4b, advantageously a vertical fixed post forming one side of the portal frame 1, 1a. Said at least one scanner 2 is advantageously arranged in height at the upper edge of the portal 1, 1a or a fixed vertical post 4, 4a. Therefore, the scanner is located so as to produce a projection of the detection beam (s) downward, in the direction of a portion of the ground in the vicinity of the moving portion. Advantageously, the scanner is located at or near the high point of the portal, to provide full height detection of the moving parts of the portal. For the same reasons, it is preferred that the scanner be placed at a lateral end of the movable portion, to cover its entire width. In this way, the scanner is advantageously at an upper end of the portal.

Advantageously, said at least one post 4, 4a has the shape of a hollow post, passing the electrical connections of said at least one scanner 2 inside said post 4, 4a. This allows to restrict the wiring and protect it by placing it inside the post 4, 4a. In this way, the exposure time is reduced with the elimination of many cables and electrical sleeves and the need to cut for the passage of cables. This reduces the assembly cost of the portal 1, 1a and facilitates the possible search for faults in the after-sales service.

Said at least one scanner 2 is, therefore, arranged in height towards one end of the passage that closes or opens the portal 1, 1a, the scanner 2 generating at least one scanning plane 8 at least partially bordering the displacement zone said at least one movable portion 3, 3a being substantially vertical or forming an acute angle with respect to a vertical plane containing the movable portion 3, 3a.

With reference to figures 3 and 4, said at least one scanner is a laser scanner 2. Conventionally, such a scanner 2 comprises as a diode a diode, advantageously a laser diode emitting a light beam, advantageously intermittent.

The emitted light beam is directed towards a specific area where there is a risk of collision of the portal 1, 1a when opening or closing with one or more objects. If the light beam meets an object, this light beam is reflected by the object.

The scanner 2 also comprises a receiving cell, advantageously in the form of a photodiode receiving the light then reflected. Depending on the distance between the scanner 2 and the object, the travel time of the light beam can vary and this travel time can be measured by a microprocessor integrated or associated with the scanner 2. It can be deduced that the light beam has found an object in his journey.

The travel time of the beam can make it possible to calculate the distance between the object and the scanner 2 and, therefore, calculate the distance between the object and the external automatic portal 1, 1a. The scanner 2 is able to scan a predefined surface thanks to a rotating mirror that deflects the luminous pulse emitted in different angular positions, which makes it possible to obtain at least one scanning plane.

Such a mirror can also have several faces slightly inclined to each other, which also makes it possible to cover not only a single two-dimensional plane, but several planes slightly inclined to each other.

For example, in Figures 3 and 4, for each scanner 2, four scanning planes 8 are illustrated which define three different detection zones 9 between them. However, this is not limiting and there may be more or less than three detection zones 9 for each scanner 2.

The scanning plane 8 that is closer to the portal 1, 1a, for example, the panel 3a of the sliding portal 1a may have a higher scanning speed than the scanning plane that is farthest from the portal 1, 1a and / or a higher scan frequency.

In fact, the detection zone 9 closest to the portal 1, 1a is the most favorable for collisions of the portal 1, 1a with one or more objects. Detections of objects in this area should, therefore, be done as quickly as possible. This also applies to the so-called high security zones 16, 18, which will be described later. In general, there may be an increasing scanning speed in the detection zones 9 the closer they are to the automatic portal 1, 1a. The scanning planes 8 of the same scanner 2 coincide with the scanner 2 diverging from the scanner 2 at an angle comprised of a few degrees at 30 °, as can be seen in figures 1a and 3a.

In a general manner, for each scanner 2, the detection of an object in the area closest to the portal 1, 1a (or another zone) is transmitted to the microprocessor of or each scanner 2 that can be connected to the control of opening or closing of the scanner 2. portal 1, 1a to be able to revert the movement of portal 1, 1a if the presence of at least one object is detected in the vicinity of portal 1, 1a. Several degrees of risk of jamming or collision of the portal 1, 1a, which involve different movements of the portal 1, 1a in response to the presence of said at least one object, can be predetermined. This will be described more precisely later. A scanner can offer several detection zones, in different planes, as indicated above, but also in the same plane, for example, at different levels of the width of the passage defined by the movement of the mobile portion (s). In all these cases, differentiated controls can be generated in case of detection, such as a complete stop for an area, detention and reversal of movement in another area ...

In a possible embodiment of the present invention, at least one scanning plane forming a higher angle can be provided with the other scanning planes, therefore, they are separated from other scanning planes 8. Said at least one plane The scanner separated from the other scanning planes 8 does not serve to secure the portal 1, 1a against collision with an object, 1a but at the opening of the portal 1, 1a when an object approaches, for example, a vehicle, the vehicle far enough from portal 1, 1a so there is no risk of collision between it and portal 1, 1a.

The microprocessor of one or more scanners 2 is advantageously programmed to act on the actuating means of the portal 1, 1a in order to open the portal when the presence of an object downstream or upstream of the portal is detected in this scanning plane separated from others for opening control. This can also be applied to close the portal when the presence of the object is detected on the other side upstream or downstream of the portal.

A scanner 2 as a detection means presents a high precision in the measurement of distance and the detection of objects, at the same time that it is easily adaptable to various working conditions that are imposed on it.

With reference to figures 1 and 2, for a swinging portal 1, which does not form part of the invention, in its opening, the risk of collision of the portal 1 with an object resides in the fact that the one or the wings 3 protrude inside or outside the space that closes or opens portal 1, the most frequent inside this space. Likewise, when closing the portal 1, the risk of collision with an object can be between the position in which the flap or flaps 3 protrude inside or outside the space and the position in which the flaps are in closed position . It is necessary to ensure the collision risk for each casement 3 of portal 1.

For a swing portal 1, therefore, it is provided on the upper edge of each leaf 3 near the fixed post 4 associated with a pair of scanners 2, a scanner located inside the space closed by the portal 1 and the other scanner located outside the closed space. Therefore, there are four scanners 2 for a two-door portal, all scanners 2 being advantageously mobile, with the portal 1 placed in pairs at the top of each leaf 3 and being advantageously close to the fixed post 4 associated with the leaf 3.

The main advantage of such positioning of the scanners 2 in pairs in each case 3 of the casement portal 1 is that they follow the movement of the casement (s) 3 of the portal 1. The exploration planes 8, therefore, follow the movement of the portal 1 of the roof and the protection zones 9 that they define are always closer to the portal 1. Thus a perfect safety against collisions is obtained, this for the two interior and exterior faces of the portal 1.

During the opening of the doorway 1, the scanners 2 are placed on the side through which the wings 3 protrude and are more susceptible to detect collision risks. During this opening, it is possible to provide control means associated with the microprocessor of at least one scanner 2 located on the side of the portal 1 towards which it points out the wing (s) 3 that proceed to invert the direction of operation of the actuating means automatic that carry out the operation of the door opener 3. If necessary, this investment is followed by the total stop of the movement of the portal 1.

On the other hand, during the closing of the swinging portal 1, the scanners 2 are placed on the other side of the swinging portal 1, that for which the swinging or jutting 3 protrude the most favorable to prevent the collision risks. During this closing, the control means associated with the microprocessor of at least one scanner 2 located on the other side of the portal 1, they reverse the operation direction of the driving means that effect the operation of the door or of the doors 3. If necessary, this inversion is followed by the total arrest of the movement of the portal 1 .

Therefore, it is possible to define a zone 17 for each flap 3 which is a closing safety zone with complete reversal of the movement of the portal 1 and a zone 16 for each flap 3 which is an opening safety zone with full inversion of the movement of portal 1 and detention of the portal, with zone 16 being an area of greater security than security zone 17.

11 it is possible to decompensate these protection zones 16 and 17 into sub-zones with a reinforced scan or with different instructions transmitted to the control means of the portal 1. For example, during the opening of portal 1, a sub-zone can be defined in the vicinity of the end of each door 3 pointing to the interior or exterior of the space closed by the portal 1 in the opening.

With reference to figures 3 and 4, for a portal 1a sliding in its opening or closing, the risk of collision of the portal 1a with an object is no longer in front of or behind the closing plane of portal 1a, therefore, inside or outside the space that can be closed by portal 1a.

For such a sliding portal 1a, the risk of collision lies in the plane of the sliding portal 1a between a lateral edge of the sliding portal 1a and one of the posts 4a, 4b as fixed posts. This post is, for example, in the opening of the sliding portal 1a, the first fixed post 4a traversed by the front of the portal 1a or in relation to which the front of the portal 1a slides transversely. In the vicinity of this first post 4a, there are risks of jamming of portal 1a in relation to this first fixed post 4a, in addition to the risk of collision with a different object of portal 1a.

At the closing of the sliding portal 1a, such a risk of jamming of the sliding portal 1a with the first fixed post 4a still exists, while there may also be collision risks with at least one object located between the second post 4b against which the end is directed rear side of the portal 1a leaning against this second post 4b during the complete closing of the door 1a.

In the case of such sliding portal, the risk of collision is advantageously ensured by four scanners 2 carried by at least one of the fixed posts 4a, 4b, advantageously, the first fixed post 4a traversed by the sliding portal 1a, these scanners being 2 arranged at the top of the first fixed post 4a.

Alternatively, it is also possible to provide the second fixed post 4b, advantageously, the second fixed post 4b is not traversed by the sliding portal 1a and serves as a limit stop to close the sliding portal of at least two scanners. It is also possible to provide two scanners 2 in a first post 4a and two other scanners 2 in the other second post 4b.

For a group of four scanners 2 carried by the first fixed post 4a which serves to slide the panel 3a of the sliding portal 1a during its opening, two scanners 2 are arranged on each inner and outer side of the sliding portal, the object susceptible of being able to enter collision with portal 1a come from inside or outside the space that can close portal 1a.

On each inner or outer side of the sliding portal 1a, a scanner 2 is arranged on the side of the wall bordering the portal 1a scanning at least one detection zone flush with the wall and the other scanner 2 is disposed towards the other second post 4b fixed, said at least one detection zone bordering the part of the panel 3a of the portal 1a not yet having slid along the wall.

As mentioned above, it is also possible to provide the other fixed panel 4b with at least two scanners, each of which is respectively disposed on an inner or outer side of the sliding portal 1a and scanning at least one detection area bordering respectively inside or externally panel 3a of portal 1a. This can be done as a complement or replacement of the two scanners 2 carried by the first fixed post 4a and by scanning the inner and outer portion, respectively, of the portal panel 3a without having been slid along the wall. Since the sliding portal does not skirt the wall along the second fixed post 4b, scanners scanning the wall adjacent the second fixed post 4b are not necessary. The scanners 2 carried by the second fixed post 4b can be advantageous during the closing of the sliding portal 1a.

In the case of a sliding portal 1a, in addition to the risk of collision with at least one object that is in the plane of the portal, this especially during its closure, there is also the risk that it will get stuck between portal 1a and the first post 4a fixed through which penetrates or against which the panel 3a of the portal 1a slides during its opening. To take into account the collision risk, security zones 17 are defined that extend along the panel 3a of the portal 1a, respectively, inside and outside the space closed by the portal 1a.

To take into account the risks of traffic jams, high security zones 16 are also defined which extend close to the first post 4a through which the panel 3a of the portal 1a is penetrated or pushed against and which is located near the first post 4a on its side facing the second post 4b. On the other side of the first post 4a oriented toward the wall against which the portal 1a slides during its opening, high security zones 18 are defined in the vicinity of the first post 4a being symmetrical to the above-mentioned high security zones 16 and, therefore, substantially the same dimensions.

Then, along the wall, security zones 19 are defined on each side of the portion of the panel 3a of the entrance portal 1a along the wall. In these safety zones, the risk of clogging is relatively low, while the risk of collision persists.

Thus, in the embodiment of the invention, the method for detecting at least one object in the displacement zone when opening or closing at least one mobile portion 3, 3a of an automatic portal 1, 1a provides that said at least a scanning plane 8 bordering at least partially the displacement zone of said at least one mobile portion 3, 3a comprises at least one high security zone 16, 18 in which, possibly, the speed and / or frequency of the The scan is greater than the speed and / or the frequency, in the rest 17, 19 of the scanning plane 8.

One such high security zone 16, 18 is predetermined as being an area where the risks of collision or jamming of the portal 1, 1a are greater, according to the invention, the area in the vicinity of the fixed post 4a through which it penetrates. or the panel 3a of the sliding portal 1a slides transversely. There can be more than two degrees of security zones 16 to 19. An interest to differentiate zones is to be able to apply different controls depending on the case. Due to the connection of the microprocessor of the scanners 2 with the control means of the actuating means of the portal 1, 1a, when a risk of collision or jamming is detected in the high security zone 16 during the opening or closing of the portal 1a, in particular, during the opening, the investment is made in a given run, for example, 15 cm, of the movement of the portal 1a and during the arrest of the portal 1a.

When a risk of collision or jam is detected in the high security area 18 during the opening or closing of the portal 1a, in particular, during the closing, the portal 1a movement is completely reversed.

When a collision risk is detected in the security zone 17 during the opening or closing of the portal 1a, in particular, during the closure, the portal 1a movement is completely reversed.

When a collision risk is detected in the security zone 19 during the opening or closing of the portal 1a, in particular, during the opening, the portal 1a is completely inverted and during the arrest of the portal 1a.

In this way, the control of the opening or closing movement of said at least one mobile portion 3, 3a of the portal 1, 1a is modified differently according to whether the detection of at least one object that is in the displacement zone said at least one mobile portion 3, 3a of the portal 1, 1a is made in a high security zone 16, 18 or in the remainder 17, 19 of the scanning plane 8.

Therefore, it is possible to differentiate security by applying different controls, depending on the location of the detection; the detection zones can easily be predefined during installation, for example, depending on the operating situation of the portal. The security zones are followed according to the width dimension of the passage and / or of the movable portions. They can be rectangular profile or not. Therefore, its contour can be adapted to the situation. In one embodiment, applicable to sliding portals, the scanner (s) are carried by a stanchion or gantry related to a pre-existing installation. In this context, the invention also aims to modify the portals already installed, adding a safety part characteristic of the invention.

It should be borne in mind that the invention preferably guarantees a security of the integrity of the entire portal so that no unattended area remains. In fact, it is not necessary to have to resort to other securities, such as motor torque limitations. Therefore, it is possible to use the same motor parameters for all installations, which previously was impossible, in particular, according to the wind classification zones.

References

1. Portal of swing

1a. Sliding portal

. Scanner

. Swing

to. Panel

. Upright

to. First stile

b. Second amount

. End of career limit

. Arm

. Ball rolling inferior to. Superior ball rolling. Plane of exploration

. Detection zone

0. Closing stop

0a. Opening stop

1. Drive means 2. Wheel

3. Barrote

4. Upper beam

5. Lower beam

6. High security zone 7. Security zone

8. High security zone 9. Security zone

Claims (14)

1. Automatic external portal (1, 1a) having at least one movable portion (3, 3a) that slides in an area of movement from an open position to a closed position through a passage of a delimited space and vice versa, the exterior automatic portal (1, 1a) comprising means (2) for detecting the presence of at least one object in the displacement zone, the detection means comprising at least one scanner (2) arranged at an upper end of the step, the scanner (2) generating at least one scanning plane (8) bordering at least partially the displacement zone of said at least one moving portion (3, 3a) being substantially vertical or forming an acute angle with respect to a vertical plane containing the mobile portion (3, 3a), in which the scanner (2) is a laser scanner comprising a transmitting cell and a receiving cell, a light beam being diverted leaving the emitting cell in different positions is angular by a rotating mirror to form a scanning plane (8), and comprising several scanning planes (8) intersecting at the level of said at least one scanner (2), the rotating mirror having several inclined faces, corresponding each one a scanning plane (8), in which the at least one scanning plane (8) defines at least two distinct and predefined detection zones that are successive according to a dimension of the width of the passage and which comprises a high area security (16, 18) and a security zone (17, 19), being the area (16, 18) of high security predetermined as it is an area where the risks of collision or jamming of the portal (1, 1a) are greater , the portal also comprising means for automatically activating the at least one mobile portion (3, 3a), the scanner (2) comprising a microprocessor having means for controlling the actuating means, the control means being configured for generate and pa to apply to the drive means different commands between a detection in the high-security area (16, 18) and the security area (17, 19), the portal comprising a first and second fixed posts (4a, 4b) framing at least partially the passage of the delimited space, the at least one moving portion (3, 3a) of the automatic exterior portal (1, 1a) comprising at least one panel (3a), and wherein the area (16, 18) of high security is in the vicinity of the stanchion (4a, 4b) fixed through which the panel (3a) penetrates or slides transversely on the side of said upright (4a, 4b) fixed in front of the other upright (4a, 4b) fixed . 2. Automatic external portal (1, 1a) according to the preceding claim, wherein the frequency and / or scanning speed of the scanner (2) is greater in the zone (16, 18) of high security than in the area ( 17, 19) of security. 3. External automatic portal (1, 1a) according to the preceding claim, comprising four scanning planes (8) on each of the sides, respectively, interior or exterior of the space, the exploration planes (8) delimiting four zones of detection. Automatic external portal (1, 1a) according to one of the preceding claims, comprising, on each side of the panel (3a), a high-security area (18) located in the vicinity of the first pillar (4a). Automatic external portal (1, 1a) according to one of the preceding claims, wherein said at least one scanner (2) is arranged in at least one fixed upright (4a, 4b) of the portal (1, 1a). 6. External automatic portal (1, 1a) according to the preceding claim, wherein said at least one upright (4a, 4b) has the shape of a hollow post, passing the electrical connections of at least one scanner (2) in the inside of said post. 7. External automatic portal (1, 1a) according to any one of the two preceding claims, portal (1, 1a) which is a sliding portal (1a) having at least one panel (3a) as a mobile portion (3, 3a) , the portal (1a) presenting means for moving said at least one panel (3a) towards the first pillar (4a) during the opening of the portal (1a), said at least one panel (3a) of the portal (1a) penetrating during its opening in the first upright (4a) fixed or sliding transversely with respect to said upright (4a), bringing the first upright (4a) to the level of the upper edge of the panel (3a) four scanners (2), exploring a first and a second scanners (2) the part of the panel (3a) located between the first upright (4a) and the second upright (4b), respectively, inside and outside the delimited space, exploring a third and a fourth scanners (2) the part of the panel (3a) that has passed through or slid transversely to the first upright (4a). 8. External automatic portal (1, 1a) according to the preceding claim, which has two panels (3a) as a mobile portion (3, 3a) of the portal (1a), said at least one second panel (3a) of the portal (1a) penetrating ) during its opening in the second pillar (4b) or sliding transversely with respect to said pillar (4b), the second pillar (4b) having four scanners (2) arranged symmetrically with respect to the scanners (2) of the first pillar (4a) ). 9. Automatic exterior portal (1, 1a) according to claim 1, wherein said at least one scanner (2) is arranged in said at least one panel (3a) in the vicinity of its part connected to a pillar (4a, 4b) fixed. 10. Automatic external portal (1, 1a) according to one of the preceding claims, wherein the detection zones have a contour of non-rectangular profile. 11. Automatic external portal (1, 1a) according to one of claims 1 to 9, wherein the detection areas have a contour of rectangular profile. Method for detecting at least one object in the displacement zone when opening or closing at least one sliding mobile portion (3, 3a) of an external automatic portal (1, 1a) according to any one of the preceding claims , wherein said at least one scanning plane (8) bordering at least partially the displacement zone of said at least one mobile portion (3, 3a), defines at least two predefined detection zones that are successive according to a dimension of the width of the step and comprising a zone (16, 18) of high security and a security zone (17, 19), and in which a control of the opening or closing movement of said at least a portion is generated and applied. (3, 3a) mobile portal (1, 1a) differently depending on whether the detection of at least one object that is in the area of displacement of said at least a mobile portion (3, 3a) of the portal (1, 1a) is carried out in a high security zone (16, 18) or in the zone (17, 19) of security of the scanning plane (8), the area (16, 18) of high security predetermined being that it is an area where the risks of collision or jamming of the portal (1, 1a) are greater, procedure wherein a portal is used comprising a first and second fixed uprights (4a, 4b) that frame at least partially the passage of the delimited space, the mobile portion (3, 3a) comprising the automatic exterior portal (1, 1a) integrates the less a panel (3a), and in which the high security zone (16, 18) is predefined in the vicinity of the fixed pillar (4a, 4b) through which the panel (3a) penetrates or slides on the side of said upright (4a, 4b) fixed in front of the other fixed upright (4a, 4b). Method according to the preceding claim, in which, in the high-security area (16, 18), the speed and / or frequency of the scan is greater than the speed and / or frequency, respectively, in the area ( 17, 19) of the scanning plane (8). The method according to the preceding claim, wherein the opening or closing movement of said at least one mobile portion (3, 3a) of the portal (1, 1a) reverses and stops after the detection of at least one object that is in the zone (16, 18) of high security.