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公开(公告)号：EP0426677B1
公开(公告)日：1994-03-09
申请号：EP89905133.8
申请日：1989-04-17
发明人： TRETT, John
IPC分类号： G01V9/04
CPC分类号： G01V8/20
摘要： Detection circuitry is described in which the range and signal to noise ratios are improved. The circuitry includes a plurality of light emitting diodes (12, 14, 16, 18) connected in series and a plurality of photodiodes (22, 24, 26, 28). Each photodiode (22) has its own separate detection circuit (42, 62) which is AC decoupled by capacitors (52). Summing means (70) are connected to sum the outputs of the detection circuits and the resultant signal is fed to an output device (10). The magnitude of the output signal is increased by a factor equal to the product of the number of light emitting diodes (12, 14, 16, 18) and the number of photodiodes (22, 24, 26, 28), over the situation where only one diode of each type is used.
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公开(公告)号：EP0328562A1
公开(公告)日：1989-08-23
申请号：EP88904994.0
申请日：1988-06-10
发明人： TRETT, John
CPC分类号： H03K17/955 , B66B13/26 , E05F15/43 , E05F15/46 , E05F2015/434 , E05Y2400/664 , E05Y2900/104 , H03K17/941
摘要： Une cabine d'ascenseur porte une paire de portes coulissantes (4 et 5) susceptibles de se rapprocher ou de s'éloigner synchroniquement l'une de l'autre afin d'ouvrir ou de fermer l'entrée de l'ascenseur. Une bande allongée de détection (8 et 10) est montée sur la face extérieure des portes respectives (4 et 6) de l'ascenseur, adjacente à leur bord antérieur. Une paire de parois palières opposées (12 et 16) supportent des portes palières coulissantes respectives (14 et 18). Les portes palières (14 et 18) s'ouvrent et se ferment en synchronisme avec les portes (4 et 6) de l'ascenseur, commandées par des circuits (non illustrés). Les bandes de détection (4 et 6) définissent ensemble trois zones séparées de détection d'obstruction, notamment une zone (20) en forme de colonne qui s'étend entre les bords antérieurs de la porte (4) de l'ascenseur et la porte palière (14), une zone (22) en forme de colonne qui s'étend entre les bords antérieurs de la porte (6) de l'ascenseur et la porte palière (18), et une région planaire (24) qui s'étend verticalement entre les bandes de détection (8 et 10).
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3.发明公开CONTROL SYSTEMS AND METHODS FOR CONTROLLING CONTROLLED SEMICONDUCTOR SWITCHING DEVICES 失效控制系统和控制应税半导体电路装置的方法。
公开(公告)号：EP0310663A1
公开(公告)日：1989-04-12
申请号：EP88904995.0
申请日：1988-06-10
发明人： TRETT, John
IPC分类号： H03K17
CPC分类号： H03K17/06 , H03K17/136
摘要： Le système décrit sert à commander un dispositif de commutation à semi-conducteur commandé (12) qui alimente une charge (8) en courant alternatif. Ledit système comprend un détecteur de courant (10) destiné à contrôler le courant qui passe par le dispositif (12). Un circuit de déclenchement (16) réagit au détecteur de courant (10) pour exciter la gâchette (14) du dispositif (12) juste avant le moment où le courant traversant le dispositif (12) tombe au-dessous du courant d'accrochage et interrompt l'excitation de la gâchette (14) lorsque le courant prélevé dépasse le niveau de courant d'accrochage.
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公开(公告)号：EP0257055A1
公开(公告)日：1988-03-02
申请号：EP87901089.0
申请日：1987-02-04
摘要： Un système de détection pour porte coulissante d'ascenseur ou de monte-charges comprend au moins deux capteurs (24, 26) destinés à contrôler l'ouverture de la porte. Lesdits capteurs (24, 26) sont destinés à détecter la présence de toute forme irrégulière en déplacement (par exemple une forme humaine) dans le passage de la porte, afin d'inverser l'action d'ouverture de la porte ou, si celle-ci est déjà ouverte, d'empêcher la fermeture de la porte. Un circuit de compensation de signaux est destiné à traiter les signaux de sortie provenant des capteurs de manière à égaliser les sorties en permanence, dans des conditions stables. Cette opération est effectuée en utilisant la sortie d'un premier capteur (26) comme signal de quasi-référence. Un comparateur (113) compare la sortie d'un second capteur (24) avec un signal de quasi-référence et modifie, à travers une boucle de réaction (139), la sortie du second capteur (24) de manière à égaliser la sortie du premier capteur (26). La boucle de réaction (139) contient un circuit de temporisation (117, 122, 123, 126) pouvant être commuté entre une temporisation longue et une temporisation courte. La temporisation longue est efficace pour des changements longs intervenant dans la sortie du second capteur (24). Quant aux changements rapides, une temporisation courte est obtenue par commutation du circuit de temporisation (117, 122, 123, 126). Le circuit de compensation est insensible aux erreurs dues à la dérive et à l'influence d'autres facteurs à variation lente.
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公开(公告)号：EP0234775A1
公开(公告)日：1987-09-02
申请号：EP87300977.3
申请日：1987-02-04
摘要： A detection system for a sliding lift or elevator door comprises at least two sensors (24,26) for monitoring the door opening. The sensors (24,26) are arranged to detect the presence of moving irregular shape (e.g. the human form) in the doorway to reverse the opening action of the door or, if already open, to prevent the door from closing. A signal compensation circuit is provided to process the output signals from the sensors in a sense to maintain the outputs equal under steady state conditions. This is achieved by using the output of a first sensor (26) as a quasi reference signal. A comparator (113) compares the output of a second sensor (24) with a quasi reference signal and through a feedback loop (139) modifies the output of the said second sensor (24). The feedback loop (139) contains a delay circuit (117,122,123,126) which is switchable between a long and short delay. For slow changes in the output of the second sensor (24) the long delay is effective but for fast changes the delay circuit (117,122,123,126) is switched to provide a short delay. The compensation circuit is effectively desensitised against errors due to drift and other slow varying influences.
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公开(公告)号：EP0226322A2
公开(公告)日：1987-06-24
申请号：EP86308646.8
申请日：1986-11-06
CPC分类号： H04B3/54 , B66B13/26 , E05F15/43 , E05F15/611 , E05F15/73 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , G01S15/88 , G01S17/026 , G01S17/87 , H04B2203/5466
摘要： A movable door incorporates a proximity detection system for sensing obstructions in the path of the door. The system comprises an array of transmitter/receiver pairs (21, 22 and 23), each pair comprising a transmitter (1) for transmitting an energy pulse, a receiver (2) located adjacent the transmitter and directed to receive any reflected transmitter pulses, and a shielding (3) for shielding the receiver (2) from receiving energy pulses directly from the transmitter (1). At least two transmitter/receiver pairs (21, 23) are mounted on a leading edge or face of the door (12) to transmit energy pulses in a direction which is not at right angles to the leading surface or edge of the door, to monitor for obstructions in the path of the door (12). Another two transmitter/receiver pairs (26 and 28) are mounted on the leading edge or surface of the door (12) to transmit energy pulses at right angles to the surface or edge of the door (12). One of the latter two receiver pairs (26) has a different response to the other pair (27) so that when the door (12) approaches a stationary object the one pair (26) detects the object ahead of the other pair (27). Means are provided to respond to the output of the one pair (26) indicating the detection of an object to inhibit the output of the other pair (27). Different transmitter/receiver pairs may transmit on different frequencies, and means for suppressing unwanted reflected signals is provided. Means for transmitting data signals on a two conductor power supply cable for the system is also disclosed.
摘要翻译： 可移动门包括用于感测门的路径中的障碍物的接近检测系统。 该系统包括一组发射机/接收机对（21,22和23），每对包括用于发送能量脉冲的发射机（1），位于发射机附近并被引导以接收任何反射的发射机脉冲的接收机（2） 以及用于屏蔽接收器（2）的屏蔽（3）不直接从发射器（1）接收能量脉冲。 至少两个发射器/接收器对（21,23）安装在门（12）的前缘或表面上，以将能量脉冲沿与门的前导表面或边缘成直角的方向传递到 监视门（12）路径中的障碍物。 另外两个发射器/接收器对（26和28）安装在门（12）的前缘或表面上以将能量脉冲以与门（12）的表面或边缘成直角的方式传输。 后两个接收器对（26）中的一个对另一对（27）具有不同的响应，使得当门（12）接近静止物体时，一对（26）检测另一对（27）之前的物体， 。 提供装置以响应指示对象的检测的一对（26）的输出以禁止另一对（27）的输出。 不同的发射机/接收机对可以在不同的频率上传输，并且提供用于抑制不需要的反射信号的装置 还公开了用于在系统的双导体电源电缆上传输数据信号的装置。
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公开(公告)号：EP0234775B1
公开(公告)日：1992-01-08
申请号：EP87300977.3
申请日：1987-02-04
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公开(公告)号：EP0380187A2
公开(公告)日：1990-08-01
申请号：EP90200586.7
申请日：1986-11-06
CPC分类号： H04B3/548 , E05F15/43 , E05F15/73 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2900/132 , G01S15/88 , G01S17/026 , G01S17/87 , H04B2203/5466
摘要： In elevators or lifts, sensing systems are mounted on two doors which move towards and away from sone another to detect obstructions in the opening between them. This ensures the safety of persons using the lifts. The two systems are electrically linked to receive a power supply and to effect data transfer between them. Because the doors are continually in motion the conductors concerned are subject to continual flexure. The more conductors there are, the higher the risk of damage to at least one of them. The present invention relates to a two conductor transmission system for transmitting power and data between two stations. The system comprises first station linked to a second station by only first and second conductors (75A,75B). The first station includes a DC source (72) for supplying the first and second conductors (75A,75B) with DC power, a synchronisation pulse generator (69), a first modulator for modulating the DC power fed to the conductors with the synchronisation pulses, a data terminal connected to said first conductor for receiving data transmitted from the second station, and first inhibiting means (70) responsive to the synchronisation pulses to inhibit the passage of data to the data terminal during the transmission of synchronisation pulses. The second station comprises data signal generating means connected to the first and second conductors (75A,75B) to receive DC power and synchronisation signals therefrom, the data signal generating means being arranged to generate data signals indicative of a monitored condition, a second modulator for modulating the DC power flowing along the first conductor (75A) in response to the generated data signals, and second inhibiting means responsive to the data signals generated to render the data signal generating means insensitive to the data signals appearing on the first conductor (75A).
摘要翻译： 在电梯或升降机中，传感系统安装在两个门之间，两个门朝着另一个方向移动，以检测它们之间的开口中的障碍物。 这确保了使用电梯的人员的安全。 两个系统电连接以接收电源并且在它们之间实现数据传输。 因为门不断运动，所以相关导体会持续弯曲。 导体越多，其中至少有一个导致损坏的风险越高。 本发明涉及用于在两个站之间发送功率和数据的双导体传输系统。 该系统包括仅通过第一和第二导体（75A，75B）链接到第二站的第一站。 第一站包括用于向第一和第二导体（75A，75B）提供DC电力的DC源（72），同步脉冲发生器（69），用于通过同步脉冲调制馈送到导体的直流电力的第一调制器 连接到所述第一导体的数据终端，用于接收从第二站发送的数据，以及第一禁止装置（70），响应于同步脉冲，在同步脉冲传输期间阻止数据传送到数据终端。 第二站包括数据信号产生装置，连接到第一和第二导体（75A，75B）以从其接收DC电力和同步信号，数据信号产生装置被布置成产生指示被监视状态的数据信号，第二调制器 响应于所生成的数据信号，调制沿着第一导体（75A）流动的DC功率，以及第二禁止装置，响应于所生成的数据信号，使数据信号产生装置对出现在第一导体（75A）上的数据信号不敏感， 。
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公开(公告)号：EP0226322A3
公开(公告)日：1987-08-26
申请号：EP86308646
申请日：1986-11-06
CPC分类号： H04B3/54 , B66B13/26 , E05F15/43 , E05F15/611 , E05F15/73 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , G01S15/88 , G01S17/026 , G01S17/87 , H04B2203/5466
摘要： A movable door incorporates a proximity detection system for sensing obstructions in the path of the door. The system comprises an array of transmitter/receiver pairs (21, 22 and 23), each pair comprising a transmitter (1) for transmitting an energy pulse, a receiver (2) located adjacent the transmitter and directed to receive any reflected transmitter pulses, and a shielding (3) for shielding the receiver (2) from receiving energy pulses directly from the transmitter (1). At least two transmitter/receiver pairs (21, 23) are mounted on a leading edge or face of the door (12) to transmit energy pulses in a direction which is not at right angles to the leading surface or edge of the door, to monitor for obstructions in the path of the door (12). Another two transmitter/receiver pairs (26 and 28) are mounted on the leading edge or surface of the door (12) to transmit energy pulses at right angles to the surface or edge of the door (12). One of the latter two receiver pairs (26) has a different response to the other pair (27) so that when the door (12) approaches a stationary object the one pair (26) detects the object ahead of the other pair (27). Means are provided to respond to the output of the one pair (26) indicating the detection of an object to inhibit the output of the other pair (27). Different transmitter/receiver pairs may transmit on different frequencies, and means for suppressing unwanted reflected signals is provided. Means for transmitting data signals on a two conductor power supply cable for the system is also disclosed.
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公开(公告)号：EP0226322B1
公开(公告)日：1994-02-02
申请号：EP86308646.8
申请日：1986-11-06
CPC分类号： H04B3/54 , B66B13/26 , E05F15/43 , E05F15/611 , E05F15/73 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , G01S15/88 , G01S17/026 , G01S17/87 , H04B2203/5466
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