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公开(公告)号：EP1350126B1
公开(公告)日：2006-07-26
申请号：EP01987403.1
申请日：2001-12-13
申请人： Prospects, Corp.
IPC分类号： G01V8/10
CPC分类号： G01V8/12
摘要： An object detection system (100) employs a photo-emitter (102) and photo-detector (104) for synchronously detecting and processing an optical signal (105) reflected from an object in a pinch zone of a window or door opening (101). A photo-emitter light signal (103) is modulated by a modulation signal (109) having an active phase and an inactive phase. The optical detector (104) provides an optical detector signal (107) that is a function of the intensity of the received light (105). The detected light (107) signal is synchronously detected using a switching amplifier (108) that multiplies the reflected modulated light signal by a first gain during the active phase and by a second gain during the inactive phase. The duration of the active and inactive phases and the first and second gains are selected such that the system gain will average to zero for ambient light when integrated over a predetermined measurement period. The synchronously detected signal is substracted (118) from a predetermined offset voltage, and this difference is then integrated over the measurement period. The output of the integrator (114) in then compared to a predetermined threshold value.
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公开(公告)号：EP1350126A4
公开(公告)日：2005-09-21
申请号：EP01987403
申请日：2001-12-13
申请人： PROSPECTS CORP
CPC分类号： G01V8/12
摘要： An object detection system (100) employs a photo-emitter (102) and photo-detector (104) for synchronously detecting and processing an optical signal (105) reflected from an object in a pinch zone of a window or door opening (101). A photo-emitter light signal (103) is modulated by a modulation signal (109) having an active phase and an inactive phase. The optical detector (104) provides an optical detector signal (107) that is a function of the intensity of the received light (105). The detected light (107) signal is synchronously detected using a switching amplifier (108) that multiplies the reflected modulated light signal by a first gain during the active phase and by a second gain during the inactive phase. The duration of the active and inactive phases and the first and second gains are selected such that the system gain will average to zero for ambient light when integrated over a predetermined measurement period. The synchronously detected signal is substracted (118) from a predetermined offset voltage, and this difference is then integrated over the measurement period. The output of the integrator (114) in then compared to a predetermined threshold value.
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公开(公告)号：EP1232557A4
公开(公告)日：2004-06-30
申请号：EP00953867
申请日：2000-08-04
申请人： PROSPECTS CORP
CPC分类号： G01V8/12 , E05F15/431 , E05Y2900/55
摘要： A hybrid obstacle detection system for a power driven closure (12) including a non-contact obstacle detection system (14) and a contact-based obstacle detection system (100). The hybrid system combines the beneficial aspects of contact and non-contact systems while avoiding the deficiencies characteristic of the constituent systems when employed alone. In the non-contact system, the closure itself may interfere with and degrade performance. In the contact-based system, physical contact with an obstacle is required before the obstacle can be detected and corrective action can be taken. Inputs from both the contact-based system and the non-contact system may be utilized over the entire closure travel path, or may be invoked only within a specific portion of the closure travel path. Either or both of the constituent systems may be used to ascertain the location of the closure. A central controller (202) may be used for coordinating the inputs from the two systems, or a controller associated with one of these systems may be adapted for this purpose. If the central controller is employed, it may be a controller dedicated to this function, or one which is already utilized in the environment of the aperture for another purpose.
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公开(公告)号：EP0642706A4
公开(公告)日：1995-12-20
申请号：EP94911641
申请日：1994-03-17
申请人： PROSPECTS CORP
发明人： LU MICHAEL Y , PAN PETER J , CHUANG CLIFF L , ZHANG JAINJUN , ZHANG JOHN , LI JAMES S , CHEN ZIQIANG , WANG CHONGTIAN , SHAO YONGBO
IPC分类号： E05F15/16 , B60J1/00 , B60J1/17 , B60J7/057 , E05F15/00 , F16P3/14 , H02P7/06 , H02P1/22 , B60L1/00 , E05F15/02 , E05F15/10 , G05B1/02 , G05B5/00 , H02P5/16 , H02P5/165
CPC分类号： E05F15/431 , E05Y2400/358 , E05Y2400/452 , E05Y2400/664 , E05Y2800/40 , E05Y2900/55 , F16P3/141 , F16P3/144
摘要： An obstruction detection apparatus (44) is provided for use in closing a power driven vent, such as a window, that is located in an opening. The vent includes a first closing edge that moves as the vent is closed and the opening includes a second closing edge that is contacted by the first closing edge when the vent is in a fully closed position. The apparatus includes a detector (52) configured to detect an obstruction at points all along the second closing edge without requiring contact between the obstruction and the vent and to deliver a detection signal when an obstruction is detected. A controller (46) is connected to the detector for receiving the detection signal and delivering a corresponding alarm signal (48).
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5.发明公开
公开(公告)号：EP1183556A4
公开(公告)日：2008-02-27
申请号：EP00939436
申请日：2000-05-31
申请人： PROSPECTS CORP
CPC分类号： G01V13/00 , E05F15/431 , E05Y2400/452 , E05Y2900/55 , G01V8/12
摘要： Monitoring system for use in detecting the presence of an obstacle in or proximate to an aperture (20). Materials are applied to one or more reflecting surfaces adjacent the aperture, enabling the improvement of the signal-to-noise ratio in the system without requiring tuning the system for the particular environment. The choice of specific material depends upon the type of radiation used for aperture monitoring and whether an obstacle is detected as an increase or decrease in reflected radiation. A calibration LED within the monitoring system enables predictable performance over a range of temperatures. The monitoring system is also provided with the capacity to adjust to variations in the background-reflected radiation, either automatically by monitoring trends in system performance or by external command. The latter case includes the use of a further element for communicating to the monitoring system directly or indirectly.
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公开(公告)号：EP1346331A2
公开(公告)日：2003-09-24
申请号：EP01992252.5
申请日：2001-12-20
申请人： Prospects, Corp.
IPC分类号： G08B21/00 , G08B23/00 , G08G1/16 , B60Q1/00 , H02P3/00 , E05F15/00 , G01S13/00 , H01J40/14 , G01C5/00 , G06F7/00
CPC分类号： G01S7/4813 , B60R11/02 , B60R2011/0021 , G01P13/00 , G01S7/4972 , G01S17/026 , G01S17/88
摘要： An obstacle detection system for vehicular environments including a monitoring sensor system and a mounting system enables an installer to make aiming adjustments, in the factory or field, to account for tolerance stack-up. The system includes a housing for mounting the monitoring sensor system to minimize cross-talk and interference between transmitter and receiver sections, to limit sensor system movement, and to enable gross and fine amining adjustments. In one embodiment, a circuit board (120) is disposed within a cradle assembly (62) which, in turn, is mounted in (110) or integral to the housing (60) to position the sensor as necessary. The cradle in one embodiment is an enclosure for the circuit board. The sensor housing is mounted to the interior vehicle trim, door panel, and/or door sheet metal and ensures consistent mounting regardless of interior trim or factory installation variations. Integral adjustment mechanisms are incorporated for adjusting the orientation of the sensor system.
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公开(公告)号：EP0620891A4
公开(公告)日：1995-03-01
申请号：EP93924901
申请日：1993-09-28
申请人： PROSPECTS CORP
发明人： LU MICHAEL YUAN , CHUANG CLIFF L
CPC分类号： E05F15/431 , E05Y2900/55
摘要： An obstruction detection system (10) for a vehicle window (30) includes a shade and/or a filter, and/or a dual channel monitoring system to prevent interference with the monitoring beam (18) by ambient noise; a transducer (48, 50 and 52) at either end and one at an intermediate apex monitors obstructions relative to nonlinear, rectilinear or curvilinear edges (40); a wide angle transducer, closely aligned pair of transducers, or a mechanical interrupter is used to ensure tripping the beam (18) by even small obstacles (86), and a camming surface (72) guides small obstacles into the path of the beam driven by the monitored window edge.
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公开(公告)号：EP0556312A4
公开(公告)日：1994-09-07
申请号：EP92900770
申请日：1991-09-04
申请人： PROSPECTS CORP
发明人： CHUANG CLIFF L
CPC分类号： B60H1/00742 , B60H1/00735 , B60R25/00 , B62D1/065 , E05F15/41 , E05F15/695 , E05F15/71 , E05Y2400/44 , E05Y2800/42 , E05Y2900/55
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公开(公告)号：EP1546760A2
公开(公告)日：2005-06-29
申请号：EP03759338.1
申请日：2003-09-19
申请人： Prospects, Corp.
IPC分类号： G01S17/02
CPC分类号： G01S17/026 , E05F15/40 , E05F15/43 , E05F2015/434 , E05Y2900/531 , E05Y2900/542 , E05Y2900/55 , G01J5/06 , G01S7/4868 , G01S7/487 , G01V8/12
摘要： An infrared obstruction detection system apparatus (100) is used to detect the presence of ambient light and initiate compensation to minimize the effects of the ambient light on the performance of the system in detetecting an obstacle (101). The magnitude of the ambient light is measured and an offset (112) proportional to that magnitude is fed to the obstruction detection system such that the data indicative of an obstacle from an evaluating detector (116) are not obscured. The apparatus continually monitors the effect of ambient light and adjusts the obstacle detection information during the changing state of the ambient light detected.
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公开(公告)号：EP1350126A1
公开(公告)日：2003-10-08
申请号：EP01987403.1
申请日：2001-12-13
申请人： Prospects, Corp.
IPC分类号： G01V8/00
CPC分类号： G01V8/12
摘要： An object detection system (100) employs a photo-emitter (102) and photo-detector (104) for synchronously detecting and processing an optical signal (105) reflected from an object in a pinch zone of a window or door opening (101). A photo-emitter light signal (103) is modulated by a modulation signal (109) having an active phase and an inactive phase. The optical detector (104) provides an optical detector signal (107) that is a function of the intensity of the received light (105). The detected light (107) signal is synchronously detected using a switching amplifier (108) that multiplies the reflected modulated light signal by a first gain during the active phase and by a second gain during the inactive phase. The duration of the active and inactive phases and the first and second gains are selected such that the system gain will average to zero for ambient light when integrated over a predetermined measurement period. The synchronously detected signal is substracted (118) from a predetermined offset voltage, and this difference is then integrated over the measurement period. The output of the integrator (114) in then compared to a predetermined threshold value.
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