EP4042062A1 - Dispositif de sécurité pour sécuriser une zone dangereuse, procédé de commande d'un dispositif de sécurité, produit programme informatique et support d'enregistrement lisible par ordinateur - Google Patents

Dispositif de sécurité pour sécuriser une zone dangereuse, procédé de commande d'un dispositif de sécurité, produit programme informatique et support d'enregistrement lisible par ordinateur

Info

Publication number
EP4042062A1
EP4042062A1 EP20739336.4A EP20739336A EP4042062A1 EP 4042062 A1 EP4042062 A1 EP 4042062A1 EP 20739336 A EP20739336 A EP 20739336A EP 4042062 A1 EP4042062 A1 EP 4042062A1
Authority
EP
European Patent Office
Prior art keywords
control device
sensor
safety device
transport path
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20739336.4A
Other languages
German (de)
English (en)
Inventor
Roland Stehr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duecker Conveyor Systems GmbH
Original Assignee
Duecker Conveyor Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Duecker Conveyor Systems GmbH filed Critical Duecker Conveyor Systems GmbH
Publication of EP4042062A1 publication Critical patent/EP4042062A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids

Definitions

  • Safety device for securing a danger point for controlling a safety device, computer program product and computer-readable recording medium
  • the invention relates to a safety device for securing a danger point, comprising at least one sensor grid with a sensor arrangement.
  • the invention also relates to a method for controlling a safety device.
  • the invention also relates to a computer program product which, when executed, causes a computer to carry out such a method.
  • the invention also relates to a computer-readable recording medium with a computer program product.
  • Safety devices occur, for example, in production, assembly and order-picking lines or in other systems or machines, as can often be found in industrial or commercial operations. Such production, assembly and order-picking lines or other systems or machines often have danger areas that are not allowed to be entered by the personnel. For this purpose, safety devices are provided in front of such areas to prevent personnel from entering the danger area during operation. Usually, the production, assembly or order-picking lines or the system or machine are stopped in the event of unauthorized access.
  • light grids which have a plurality of transmitter and receiver pairs in order to monitor a monitoring area, for example around a machine tool or a system, and to prevent people from going unnoticed in this monitoring area can enter.
  • a light grid is known from document DE 10 2007 033 766 A1 which has an ammunition sensor that is connected directly to the light grid and by means of which the light grid is muted when the muting sensor is triggered.
  • a workpiece can be fed to a machine without the machine interrupting the processing.
  • the light grid can thus be passed without triggering an emergency stop.
  • the disadvantage is that muting is controlled by muting sensors that are part of the light curtain and are connected directly to it. There is no longer any feedback and there can be no verification of what is happening through the light curtain.
  • the invention is based on the object of creating a safety device which enables improved safety with fewer process interruptions.
  • a safety device for securing a danger point.
  • the safety device comprises at least one sensor grid with a sensor arrangement, at least one transport path for transporting transport goods with at least one optical sensor for determining the position of the transport goods, and a control device.
  • the control device is operationally connected to the at least one optical sensor and the sensor arrangement, the control device being designed to receive a first signal from the sensor arrangement and to receive a second signal from the at least one optical sensor.
  • the control device is designed to determine the occupancy of the transport path as a function of the first and the second signal and is designed to provide a gating signal for controlling the sensor grid as a function of the occupancy of the transport path.
  • Safety device has at least one sensor grid with a sensor arrangement, at least one transport path for transporting goods to be transported with at least one optical sensor
  • the method according to the invention comprises the following steps: receiving a first signal from the sensor arrangement by the
  • Control device receiving a second signal from the at least one optical sensor by the control device; Determining the occupancy of the transport path as a function of the first and the second signal by the control device; Providing a gating signal for controlling the
  • a computer program product which is in a computer of a control device of a safety device with at least one sensor grid with a sensor arrangement, at least one transport path for transporting goods with at least one optical sensor for
  • the computer program product causes the computer to carry out the above or further developed method for controlling a safety device.
  • a computer-readable recording medium on which a computer program product is recorded is provided.
  • the computer program product is suitable when executed in a computer of a control device of a safety device with at least one sensor grid with a sensor arrangement, at least one transport path for transporting transport goods with at least one optical sensor for determining the position of the transport goods, and the control device which is operationally with the at least one optical sensor and the sensor arrangement is connected to cause the computer to carry out such a method or a method developed further as described below for controlling a safety device.
  • the occupancy of the transport track in the sense of the invention can include goods to be transported as well as foreign objects or people.
  • the shape and size of the goods to be transported can on the one hand be known in advance and stored in the control device or entered or fed into it. This can be done automatically with the help of a sensor or scanner as well as via other suitable technical means, so that the size and shape of the goods to be transported are known in advance.
  • the transport track can be, for example, a conveyor belt or a roller track.
  • a light button or light sensor can be used as the optical sensor.
  • the sensor grid in the sense of the invention is, for example, a light curtain, and the sensor grid can also be a plurality of other pairs of sensors which are arranged parallel to one another and are suitable for detecting an object.
  • the sensor grid spans a two-dimensional plane, which is monitored by it. If the sensor grid is interrupted in an impermissible manner, the process or the system in the danger area that harbors the potential danger is interrupted.
  • the sensor grid is controlled by a gating signal.
  • the control device is designed separately from the sensor arrangement.
  • the control device is in particular a programmable logic controller (PLC) and a computer.
  • PLC programmable logic controller
  • the computer-readable recording medium can be any common recording medium, such as, for example, a USB stick, a hard disk, a memory card, a CD, DVD, HD-DVD or Blu-ray disk.
  • the control device is operationally connected to the system, the process or the machine that is to be secured by the safety device in order to stop it if an inadmissible passage through the sensor grid is detected.
  • the embodiment according to the invention ensures that the gating function of the sensor grid is controlled by the control device.
  • the control device provides the gating signal through which the sensor grid can be passed temporarily without a process or a system in the danger zone being stopped. If no gating signal is provided by the control device and the sensor grid is passed, then the process or the system in the danger area is stopped.
  • the sensor grid is not completely deactivated or muted by the gating signal, but the sensor arrangement of the sensor grid continues to provide the first signal to the control device, so that the admissibility of a transport item can be verified.
  • the configuration according to the invention creates a process that is monitored over time and in sequence. This makes it possible both time-dependent and sequence-dependent to control passage through the sensor grid by the control device without stopping the process or the system in the danger area.
  • the occupancy of the transport path is evaluated by the at least one optical sensor for determining the position of the transported goods. Furthermore, the at least one optical sensor enables the minimum object size of the transported goods to be evaluated and the directional recognition of the transported goods.
  • the configuration according to the invention ensures that, in contrast to previous solutions, the safety device according to the invention can no longer be bypassed or otherwise overcome by operating personnel. Furthermore, since the sensor grid is still active while the gating signal is provided, it is possible to determine and / or verify whether the transported goods correspond to a predefined or previously detected shape and / or size.
  • muting sensors can be dispensed with according to the invention.
  • the configuration according to the invention makes it possible to reduce process interruptions, since the gating signal is controlled by the control device depending on the shape or size of the charge. In this way, for example, “holes in the load” can also be detected, for example when a stack of empty pallets passes the sensor grid. Furthermore, according to the invention, a long-term reliable system is provided, since no separate muting sensors are directly integrated into the sensor grids, which can cause errors.
  • the safety device is designed in such a way that the sensor arrangement of the sensor grid has a plurality of sensors, for example every 3 cm, and is designed to be able to detect when only one hand of an operator reaches through it, for example when only individual sensors Detect a foreign body a hand in the sensor grid at a certain height.
  • the system is not necessarily interrupted, but the control device can distinguish, depending on the duration or the size of the object, whether and when a system / process stop is necessary.
  • a web speed sensor is formed on the transport path.
  • the web speed sensor can be operatively coupled to the control device.
  • the control device can be designed to receive a track speed signal which embodies the track speed of the transport track and the control device is designed to control the duration of the gating signal as a function of the track speed.
  • the web speed signal is preferably provided by the web speed sensor. This can for example be formed directly on the transport path or on a drive of the transport path.
  • the duration of the gating signal can be adapted to the web speed.
  • a shorter duration of the gating signal is necessary for a transport material of a given size than for a low path speed of the transport path in order to enable a consistently large gating sequence window to be generated around the transport material. This ensures that no Inadmissibly large gaps or inadmissibly small distances before or after the transported goods are provided, in which the transported goods can pass the sensor grid.
  • the safety device can also provide that the control device is designed to control the duration of the gating signal as a function of the type, shape and / or size of the goods to be transported and as a function of the path speed in such a way that a gating sequence Window is created.
  • the gating sequence window ensures that a specific area is defined around the transported goods, in which the sensor grid can be passed without the control device providing for a system or process stop.
  • a gating sequence window is understood to be a virtual area that extends beyond the previously known dimensions of the goods to be transported and thus defines a window around the goods to be transported within which permissible passage through the sensor grid is possible.
  • the gating sequence window generated by the control device is smaller than 0.2 m before, above and / or after the goods to be transported.
  • the gating sequence window should be smaller than 0.2 m, since such a distance is selected to be correspondingly small, so that it is prevented that a person can position himself directly in front of, above or behind the transported goods and with this unnoticed by the system can drive into the danger area.
  • this can happen as described below:
  • the web speed is chosen, for example, so that it does not exceed 0.2 m / s.
  • the duration of the gating signal is selected, for example, so that 1s after the transported goods have passed the sensor grid, the gating signal ends and the gating sequence window defined thereby ends 0.2 m behind the transported goods.
  • the sensor grid must be interrupted within 4 seconds of the generation of the first signal in order to avoid an impermissible possibility of passing through the sensor grid without interrupting the process or system. This is to avoid that also with very slow speeds of the transport path an inadmissible passage is prevented.
  • a synchronization beam - an uppermost and / or lowermost beam of the sensor grid - is permanently free.
  • the safety device can provide that a web travel sensor is formed on the transport path, which is operatively coupled to the control device, wherein the control device is designed to receive a web travel signal and, depending on the web travel signal, the control device is designed to provide the gating signal only when the conveyor is in motion.
  • the web travel sensor can, for example, be provided in the drive of the transport path.
  • a gating signal is only provided when a web travel signal signals that the transport web is in motion.
  • the aim is to prevent the sensor grid from being able to pass when the transport path is not moving.
  • control device is designed to determine the occupancy of the transport path at least on the basis of the received first and second signals and to distinguish transport goods of a previously known shape and size from foreign objects and / or people and, depending on this, the gating signal for controlling the Provide sensor grid.
  • the safety device has at least one fence arranged parallel to the transport path and the fence is attached directly to a post of the sensor grid. This ensures that unauthorized entry of the danger area past the fence is not possible.
  • the posts of the sensor grid are arranged laterally spaced from the transport path and between the transport path and the respective posts of the sensor grid, in an area in which the sensor arrangement is not attached, an anti-creep protection is arranged.
  • the sensor grid is a light curtain.
  • a web speed sensor is formed on the transport path, which is operatively coupled to the control device, the method further comprising the following steps: receiving a web speed signal, which embodies the web speed of the transport path, by the control device; Controlling a duration of the gating signal as a function of the web speed by the control device.
  • step can be provided in the embodiment of the method: Control the duration of the gating signal depending on the type, shape and / or size of the goods being transported and depending on the path speed by the control device in such a way that a gating sequence window is generated around the goods being transported .
  • the method can provide that the gating sequence window generated by the control device is smaller than 0.2 m before, above and / or after the transported goods.
  • a web travel sensor to be formed on the transport path, which is operatively coupled to the control device, the method further comprising the following steps: receiving a web travel signal by the control device; and providing the gating signal as a function of the web travel signal by the control device only when the transport web is in motion.
  • the following steps can also be provided: determining the occupancy of the transport path at least on the basis of the received first and second signals by the control device; Differentiating between transport goods of a previously known shape and size from foreign objects and / or people; and providing the gating signal for controlling the sensor grid in dependence thereon.
  • a possible area of application for the solutions according to the invention is, for example, the corrugated cardboard industry.
  • FIG. 1 shows a schematic perspective view of a safety device according to the invention
  • FIG. 2 shows a schematic plan view of the safety device according to the invention
  • FIG. 3 shows a schematic perspective side view of the safety device according to the invention
  • FIG. 5 shows a schematic front view of the safety device according to the invention
  • FIG. 6 shows a schematic perspective side view of the safety device according to the invention with a piece of transported goods in front of the sensor grid;
  • FIG. 7 shows a schematic perspective side view of the safety device according to the invention with a piece of goods to be transported between the sensor grid.
  • FIG. 1 shows a schematic perspective view of a safety device 10 according to the invention.
  • the safety device 10 is a Safety device 10 for securing a danger point. According to FIG. 1, this danger point is located in an area surrounded by a fence.
  • the safety device 10 comprises at least one sensor grid 20 with a sensor arrangement 25 and at least one transport path 30 for transporting goods 5 to be transported. Only one of the sensor grids 20 is shown here. However, for example, two sensor grids 20 can be formed, which are arranged in the transport direction T before and after the danger point G.
  • optical sensors 35i ... n for determining the position of the transport goods 5 are arranged.
  • the safety device 10 has a control device 100 which is operationally connected to the multiple optical sensors 35i... N and the sensor arrangement 25.
  • the control device 100 is designed to receive a first signal S1 from the sensor arrangement 25 and to receive a second signal S2 from the at least one optical sensor 35 1... N.
  • the control device 100 is connected to each of the optical sensors 35 1 ... n and receives a second signal S2 from each of the sensors 35 1 ... n.
  • the control device 100 is designed to determine the occupancy B of the transport path 30 as a function in particular of the first and second signals S 1, S2.
  • the control device 100 is also designed to provide a gating signal S 3 for controlling the sensor grid 20 as a function of the occupancy B of the transport path 30.
  • the transport track 30 is driven by at least one drive 32.
  • the transport track 30 is designed as a conveyor belt system, which is divided into several sections lengthwise, which are arranged one behind the other in the transport direction T.
  • two bands 31 are arranged next to one another in each section.
  • the at least one optical sensor 35 1 , 35 2 , 35 n is arranged between the individual bands.
  • a web speed sensor 36 is also formed on the transport path 30.
  • the web speed sensor 36 is arranged in the area of the drive 32.
  • the web speed sensor 36 is also operatively coupled to the control device 100, the control device 100 being designed to receive a web speed signal S 5 which embodies the web speed v of the transport web 30.
  • the control device 100 is designed to control the duration of the gating signal S 3 as a function of the web speed v.
  • the control device 100 is designed to control the duration of the gating signal S 3 as a function of the type, shape and / or size of the transported goods 5 and as a function of the path speed v in such a way that a gating sequence window GSF is generated around the transported goods 5 .
  • a gating sequence window GSF is shown by way of example in FIG. 1 by the dotted lines around the goods to be transported 5.
  • the size of the gating sequence window GSF is selected so that no person can position himself in front of, behind or on the transported goods 5 without this being detected by the safety device. If, for example, a foreign body or a person protrudes from the gating sequence window GSF, this is detected by the sensor grid 20 and the transport path 30 and / or the process or the system in the danger area is stopped.
  • the distance between the gating sequence window GSF is less than 0.2 m from the goods to be transported 5 act. Thus, no person can position themselves in front of, over and / or after the goods 5 to be transported on the transport path 30 in order to bypass the safety device 10.
  • the safety device 10 has a web travel sensor 34 which is formed on the transport path 30. In the present case, this is arranged in the area of the drive.
  • the web travel sensor 34 is operatively coupled to the control device 100, the control device 100 being designed to receive a web travel signal S4 and, depending on the web travel signal S4, the control device 100 being designed to provide the gating signal S 3 only when the transport path 30 is in motion is.
  • the control device 100 is also designed to determine the occupancy B of the transport path 30 in particular on the basis of the received first and second signals S 1 , S 2 and to distinguish transport goods 5 of a previously known shape and size from foreign objects and / or people and, depending on this, the Provide gating signal S 3 for controlling the sensor grid 20.
  • the safety device 10 has at least one fence 40 arranged parallel to the transport path 30, and the fence 40 is attached directly to a post 22 of the sensor grid 20.
  • a fence 40 is sufficient. If this is free, however, as shown in FIG. 1, a fence 40 is arranged on each longitudinal side.
  • FIG. 2 shows a schematic top view of the safety device 10 according to the invention.
  • the transport path is divided into two sections A1, A2.
  • the first section Ai of the transport path 30 lies in front of the sensor arrangement 25 of the sensor grid 20.
  • the second section A2 of the transport path 30 lies behind the sensor arrangement 25 of the sensor grid 20.
  • In the transport direction T in front of the sensor grid 20 in the first section A 1 are three optical sensors 35 1 , 35 2 , 35 3 arranged.
  • three optical sensors 35 4 , 35 5 , 35 n are arranged.
  • FIG. 3 shows a schematic perspective side view of the safety device 10 according to the invention.
  • the distance between the sensor 353, which is arranged directly in front of the sensor grid 20 in the transport direction T, is 280 mm from the sensor grid 20.
  • the sensor grid 20 is a light curtain.
  • the sensor grid 20 has two posts 22 on which a sensor arrangement 25 is arranged.
  • the posts 22 are arranged on both sides of the transport path 30.
  • the sensor grid 20 is arranged above the transport path 30.
  • the sensor arrangement 25 is positioned on the post 22 in such a way that the lowermost part of the sensor grid 20 is arranged directly above the transport path 30.
  • the lowest beam is the Sensor grid 20, for example 30mm or 50mm above the transport path. This ensures that a sensor grid is prevented from crawling under and reaching under.
  • the resolution of the sensor grid 20 is 30mm, i.e. That is, every 30 mm a beam of the sensor grid 20 extends from one post 22 to the other post 22.
  • FIG. 4b shows a schematic front view of a post 20 of the sensor grid 20.
  • the height of the post 22 is 1900 mm.
  • operating elements 26 are arranged on the outside of the post. These can be push buttons or an acknowledgment button, for example. It is important that these operating elements 26 are arranged, accessible from the outside, outside the danger point or the area of the safety device 10 that is shielded around the danger point.
  • the securing device 10 has various means in the area of the posts 22 which prevent crawling under.
  • a crawl-under protection 24 is arranged between the post 22 and the transport path 30, which prevents crawling under in an area between the post 22 and the transport path 30 that is not monitored by the sensor arrangement 25.
  • a central anti-creep protection device 28 is arranged under the transport path 30, by means of which the personnel can be prevented from reaching the danger point without the sensor grid 20 being able to perceive this. Both the anti-creep protection 24 and the central anti-creep protection can be designed as metal sheets.
  • the safety device 10 has an angled plate 21 that can be attached to the side of the transport path 30 and can extend horizontally along a floor.
  • a plurality of holes in the form of a drilling pattern are prefabricated in the angled plate 21, which are positioned such that they can be used as a drilling template for drilling into the hall floor, and then the post 22 is connected to the hall floor through these holes can be. This ensures that the posts 22 are given a defined orientation relative to the transport path 30.
  • FIG. 6 shows a schematic perspective side view of the safety device 10 according to the invention with a piece of goods to be transported 5 in front of the sensor grid 20.
  • the goods to be transported 5 have not yet entered the sensor grid 20, but are located directly in front of the sensor grid 20.
  • FIG. 7 shows a schematic perspective side view of the safety device 10 according to the invention with a piece of goods 5 to be transported between the sensor grid 20.
  • the goods to be transported 5 are now located between the sensor grid 20 and are detected by the latter.
  • the gating signal S 3 is fed to the sensor grid 20 by the control device 100, so that the sensor grid 20 is not completely muted or deactivated, but rather detects whether the transported goods 5 have the previously known shape and size.
  • the process is therefore not controlled via muting sensors but rather via the control device 100 and in particular the gating signal S 3 provided by the control device.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)

Abstract

L'invention concerne un dispositif de sécurité (10) destiné à sécuriser une zone dangereuse comprenant au moins une grille de détection (20) dotée d'un agencement de capteurs (25), au moins un chemin de transport (30) destiné à transporter des produits (5) ayant au moins un capteur optique (351, 352, 35n) permettant de déterminer la position des produits (5), et une unité de commande (100), qui, pendant le fonctionnement, est connectée au ou aux capteurs optiques (35) et à l'agencement de capteurs (25), l'unité de commande (100) étant conçue pour recevoir un premier signal S1 en provenance de l'agencement de capteurs (25) et pour recevoir un second signal S2 à partir du ou des capteurs optiques (351, 352, 35n), l'unité de commande 100 étant conçue pour déterminer l'occupation B du chemin de transport (30) en fonction des premier et second signaux S1, S2 et pour fournir un signal de déclenchement S3 pour commander la grille de capteur (20) en fonction de l'occupation B du chemin de transport (30).
EP20739336.4A 2019-10-10 2020-07-08 Dispositif de sécurité pour sécuriser une zone dangereuse, procédé de commande d'un dispositif de sécurité, produit programme informatique et support d'enregistrement lisible par ordinateur Withdrawn EP4042062A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019127373.0A DE102019127373A1 (de) 2019-10-10 2019-10-10 Sicherheitsvorrichtung zur Sicherung einer Gefahrenstelle, Verfahren zur Steuerung einer Sicherheitsvorrichtung, Computerprogrammprodukt und computerlesbares Aufzeichnungsmedium
PCT/EP2020/069266 WO2021069119A1 (fr) 2019-10-10 2020-07-08 Dispositif de sécurité pour sécuriser une zone dangereuse, procédé de commande d'un dispositif de sécurité, produit programme informatique et support d'enregistrement lisible par ordinateur

Publications (1)

Publication Number Publication Date
EP4042062A1 true EP4042062A1 (fr) 2022-08-17

Family

ID=71575387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20739336.4A Withdrawn EP4042062A1 (fr) 2019-10-10 2020-07-08 Dispositif de sécurité pour sécuriser une zone dangereuse, procédé de commande d'un dispositif de sécurité, produit programme informatique et support d'enregistrement lisible par ordinateur

Country Status (3)

Country Link
EP (1) EP4042062A1 (fr)
DE (1) DE102019127373A1 (fr)
WO (1) WO2021069119A1 (fr)

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DE10233258B4 (de) * 2002-07-23 2006-07-13 Leuze Lumiflex Gmbh + Co. Kg Lichtgitter
DE10329881A1 (de) * 2003-07-02 2005-01-20 Sick Ag Lichtgitter
DE102004038906B4 (de) * 2004-08-11 2007-10-25 Sick Ag Verfahren zur Erfassung beweglicher Objekte in einer Überwachungseinrichtung und Überwachungseinrichtung
ITBO20050700A1 (it) * 2005-11-18 2007-05-19 Datasensor Spa Sistema e metodo per il controllo automatico della disattivazione temporanea di una barriera fotoelettrica
DE102006059322B4 (de) * 2006-12-15 2009-03-26 Leuze Lumiflex Gmbh + Co. Kg Verfahren zur Erfassung von Objekten in einem Überwachungsbereich mittels eines Lichtgitters
DE102007033766B4 (de) * 2007-07-18 2009-11-26 Leuze Lumiflex Gmbh + Co. Kg Lichtgitter
DE102008004941B4 (de) * 2008-01-18 2009-10-22 Sick Ag Sicherheitsanordnung und Verfahren
DE102008050943B4 (de) * 2008-10-10 2016-07-07 Leuze Lumiflex Gmbh + Co. Kg Optischer Sensor
JP6291993B2 (ja) * 2014-04-18 2018-03-14 オムロン株式会社 多光軸光電センサ
US9910186B2 (en) * 2015-08-17 2018-03-06 Rockwell Automation Safety Ag Dynamic light curtain muting system and method
DE102016005854A1 (de) * 2016-05-12 2016-12-01 Daimler Ag Vorrichtung und Verfahren zur Überwachung eines Schutzbereichs
DE102016116350B3 (de) * 2016-09-01 2017-12-14 Sick Ag Überwachungseinrichtung
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IT201800002494A1 (it) * 2018-02-08 2019-08-08 Omron Europe B V Dispositivo di monitoraggio per monitorare un settore limite di una zona di sicurezza.

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Publication number Publication date
WO2021069119A1 (fr) 2021-04-15
DE102019127373A1 (de) 2021-04-15

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