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公开(公告)号：EP4431987A1
公开(公告)日：2024-09-18
申请号：EP23161947.9
申请日：2023-03-15
发明人： Feller, Bernhard , Sillge, Ray , Auer, Robert , Olbrich, Sebastian , Pychal, Martin , Heckmayr, Alexander
摘要： Die Erfindung betrifft einen Lichtvorhang (1) zur Erfassung von Objekten (O) in einem Überwachungsbereich. Der Lichtvorhang (1) umfasst eine Reihenanordnung von Lichtstrahlen (3) emittierenden Sendern (4a-4h) und eine Reihenanordnung von Lichtstrahlen (3) emittierenden Empfängern (7a-7h). Bei freiem Überwachungsbereich werden die Lichtstrahlen (3) der Sender (4a-4h) durch den Überwachungsbereich geführt und treffen auf einen zugeordneten Empfänger (7a-7h). Bei einem Objekteingriff im Überwachungsbereich sind die Lichtstrahlen (3) wenigstens eines Senders (4a-4h) unterbrochen. In einer Auswerteeinheit (8) wird abhängig von Empfangssignalen der Empfänger (7a-7h) ein Objektfeststellungssignal generiert. Erfindungsgemäß sind jedem Empfänger (7a-7h) wenigstens zwei parallel geschaltete Arbeitswiderstände (18a, 19a, 18b, 19b, ...) zugeordnet.
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5.发明公开
公开(公告)号：EP4375474A1
公开(公告)日：2024-05-29
申请号：EP23207613.3
申请日：2023-11-03
申请人： Nordic Door AB
发明人： HÅKANSSON, Ulf , FREDRIKSSON, Jonas
CPC分类号： E06B9/68 , E06B9/13 , E06B2009/684520130101 , E06B2009/687220130101 , E05F15/40 , F16P3/14 , G01V8/20 , E05Y2800/4020130101 , E05Y2400/5020130101 , E05Y2400/50420130101 , E05Y2400/50820130101 , E05Y2400/51420130101
摘要： Disclosed is a method and a control unit (10) of a roll door control system for controlling opening and closing of a roll door (1). The roll door control system comprises an inverter (20) connected to the control unit (10), a drive unit (30) for driving the roll door (1) for opening and closing, connected to the inverter (20) and an encoder (40) connected to the control unit (10) for monitoring a position of the roll door (1). The control unit (10) obtains from the inverter (20) information on first speed and first direction of the drive unit (30), and from the encoder (40) information on position of the roll door (1), which it uses to determine second speed and second direction of the drive unit. The control unit further stops the drive unit (30) in case any of first speed, second speed, first direction, second direction do not match an instruction sent to the inverter (20).
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公开(公告)号：EP3051320B1
公开(公告)日：2018-11-28
申请号：EP15152887.4
申请日：2015-01-28
IPC分类号： G01V8/20
CPC分类号： G01V8/20
摘要： The present invention relates to light curtains, in particular safety light curtains, for monitoring a protective field. Furthermore, the present invention relates to optical units which are part of such a light curtain. According to the present invention, an optical unit (105) comprises a plurality of radiation emitting and/or radiation receiving elements (116, 118, 120) for transmitting and/or receiving radiation beams forming said light curtain (100), and an elongated support element (160) forming an outer housing of said optical unit, said support element having two opposing peripheral regions which are formed to allow an abutting assembly with another identical optical unit. Said radiation emitting and/or radiation receiving elements are arranged within said support element to form a row, and wherein at least one peripheral one of said radiation emitting and/or radiation receiving elements is located directly adjacent to an outer wall of at least one of said peripheral regions of the support element.
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公开(公告)号：EP2461340B1
公开(公告)日：2018-11-07
申请号：EP10804389.4
申请日：2010-07-27
申请人： Omron Corporation
CPC分类号： G01V8/20
摘要： A casing 100 forms an outer shape of each of a projector and an optical receiver of a multi-optical axis photoelectric sensor. The casing 100 includes a frame body 3 having a front and both ends open, a pair of caps 4 and 4 to cover both ends of the frame body 3, and a light transmissive plate 6 to cover the open front of the frame body 3. In the inner surfaces of both side plates of the frame body 3, supports 31 and 31 which extend along the corresponding side edges of the opening of the front are formed. Both side edges of the light transmissive plate 6 are supported by the supports 31 and 31, and both ends thereof are supported by the caps 4 and 4. Portions of the caps 4 and 4 that support the light transmissive plate 6 include communication portions to communicate with the supports 31 and 31 of the frame body 3, and a string-shaped elastic member 7 is disposed around a closed loop formed by each support and each communication portion. The light transmissive plate 6 is held between the string-shaped elastic member 7 and at least one fixing member disposed for the frame body 3 and the caps 4 and 4. This configuration facilitates fixing of the light transmissive plate 6 and changing of a size of the frame body 3.
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