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1. 发明授权

EP0259445B1 OBJECT DETECTION METHOD AND APPARATUS EMPLOYING ELECTRO-OPTICS 失效
标题翻译：目标检测方法和使用电光学的装置
公开(公告)号：EP0259445B1
公开(公告)日：1993-08-04
申请号：EP87901889.3
申请日：1987-02-19
申请人： AUTO-SENSE, LTD.
发明人： BEGGS, George , SPECK, Richard
IPC分类号： G08G1/16
CPC分类号： G01S17/936 , G01S7/4811 , G01S2007/4975
摘要： Apparatus for detecting the presence of an object within an area under surveillance employs an electro-optical emitter for directing light into the area and an electro-optical receiver for sensing light reflected from the object which originates from the emitter. The emitter emits light energy of a preselected wavelength and is modulated at a preselected frequency to provide the emanating light energy with a characteristic signature. Light reflected by an object within the area under surveillance is filtered and converted to an electrical signal which varies in accordance with the magnitude of the filtered light having the preselected wavelength and modulation frequency. A selected portion of the electrical signal is amplified by a band-pass amplifier and is synchronously sampled in accordance with the modulation frequency to determine the magnitude of the filtered light which originated from the emitter. The sampled signal is compared with a threshold value to determine whether an object is present within the area under surveillance. The emitter and receiver are covered by a transparent shield to protect them against foreign matter. An electro-optical detector monitors the accumulation of foreign particulates on the shield. The apparatus may be desirably used in vehicles to detect the presence of adjacent objects, particularly within the vehicle's "blind spots" and thereby avoid collisions.

2. 发明公开

EP0998735A4 MULTI-FREQUENCY PHOTOELECTRIC DETECTION SYSTEM 失效
标题翻译： MEHRFREQUENTES PHOTOELEKTRISCHES DETEKTIONSSYSTEM
公开(公告)号：EP0998735A4
公开(公告)日：2000-11-22
申请号：EP98935871
申请日：1998-07-22
申请人： AUTO SENSE LTD
发明人： JUDS SCOTT , MATHEWS PAUL , LEWIS ROBERT
IPC分类号： G08G1/16 , B60Q1/00 , B60W30/00 , G01S17/36 , G01S17/87 , G01S17/93
CPC分类号： G01S17/936 , G01S7/4811 , G01S17/36 , G01S17/87 , G01S2013/9332
摘要： Collision avoidance apparatus (28, 30) is mounted on a host vehicle (20) to detect the presence of an adjacent vehicle (22) within a monitored zone (24, 26). A sensor module (30) includes a plurality of discrete sensor systems for monitoring unique portions of the monitored zone (24, 26), each of which comprises an emitter (52) emitting a fixed frequency modulated beam (58) of light energy (54) with a predetermined burst length into its unique portion of the monitored zone (24, 26), and a receiver (68) having a field of view (62), substantially aligned with the emitted beam (58) to produce a fixed optical overlap area (A), and for sensing light energy (66) and generating a received signal. A frequency generator (48) produces two or more predetermined different fixed frequencies for use by the emitter (52) to emit beams (58) at each frequency. A phase shifter (70) produces a phase shifted reference signal with a different predetermined phase delay relationship to each fixed frequency. A mixer (72) mixes each received signal and each phase shifted reference signal to produce demodulation signals from for each frequency. A processor (40) receives and processes accoupled logic level detection signals generated by a limiter amplifier (76) for each discrete sensor system at each of the fixed frequencies to determine the presence of a vehicle (22) in the monitored zone (24, 26). The fixed frequency and the predetermined phase delay are chosen to produce a null received signal resulting from reflections of the emitted beam from uniformly distributed atmospheric backscatter within the optical overlap area (A).
摘要翻译：碰撞避免装置（28,30）安装在主车辆（20）上以检测监控区域（24,26）内相邻车辆（22）的存在。传感器模块（30）包括多个分立的传感器系统，用于监测被监测区域（24,26）的独特部分，每个传感器系统包括发射光能（54）的固定频率调制光束（58）的发射器（52））与预定的突发长度一起插入到其被监测区域（24,26）的唯一部分中，以及具有视场（62）的接收器（68），其基本上与发射的光束（58）对准以产生固定的光学重叠区域（A），并用于感测光能（66）并产生接收信号。频率发生器（48）产生两个或多个预定的不同固定频率，供发射器（52）用于在每个频率发射波束（58）。移相器（70）产生具有与每个固定频率不同的预定相位延迟关系的相移参考信号。混频器（72）混合每个接收信号和每个相移参考信号以从每个频率产生解调信号。处理器（40）接收并处理由限幅放大器（76）为每个固定频率的每个离散传感器系统生成的耦合逻辑电平检测信号，以确定监测区域（24,26）中车辆（22）的存在）。选择固定频率和预定相位延迟以产生由光学重叠区域（A）内来自均匀分布的大气后向散射的发射光束的反射产生的零接收信号。

3. 发明公开

EP0998735A1 MULTI-FREQUENCY PHOTOELECTRIC DETECTION SYSTEM 失效
标题翻译： MEHRFREQUENTES光电管检测系统
公开(公告)号：EP0998735A1
公开(公告)日：2000-05-10
申请号：EP98935871.8
申请日：1998-07-22
申请人： Auto-Sense, Ltd
发明人： JUDS, Scott , MATHEWS, Paul , LEWIS, Robert
IPC分类号： G08G1/16
CPC分类号： G01S17/936 , G01S7/4811 , G01S17/36 , G01S17/87 , G01S2013/9332
摘要： Collision avoidance apparatus (28, 30) is mounted on a host vehicle (20) to detect the presence of an adjacent vehicle (22) within a monitored zone (24, 26). A sensor module (30) includes a plurality of discrete sensor systems for monitoring unique portions of the monitored zone (24, 26), each of which comprises an emitter (52) emitting a fixed frequency modulated beam (58) of light energy (54) with a predetermined burst length into its unique portion of the monitored zone (24, 26), and a receiver (68) having a field of view (62), substantially aligned with the emitted beam (58) to produce a fixed optical overlap area (A), and for sensing light energy (66) and generating a received signal. A frequency generator (48) produces two or more predetermined different fixed frequencies for use by the emitter (52) to emit beams (58) at each frequency. A phase shifter (70) produces a phase shifted reference signal with a different predetermined phase delay relationship to each fixed frequency. A mixer (72) mixes each received signal and each phase shifted reference signal to produce demodulation signals from for each frequency. A processor (40) receives and processes accoupled logic level detection signals generated by a limiter amplifier (76) for each discrete sensor system at each of the fixed frequencies to determine the presence of a vehicle (22) in the monitored zone (24, 26). The fixed frequency and the predetermined phase delay are chosen to produce a null received signal resulting from reflections of the emitted beam from uniformly distributed atmospheric backscatter within the optical overlap area (A).

4. 发明授权

EP0938722B1 DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE 失效
标题翻译：具有增强的噪声容限检测系统
公开(公告)号：EP0938722B1
公开(公告)日：2006-01-11
申请号：EP97946652.1
申请日：1997-11-13
申请人： Auto-Sense, Ltd
发明人： JUDS, Scott
IPC分类号： G01S13/93 , G08G1/16 , G01S7/483 , G08B13/181 , G01S7/497
CPC分类号： G01S17/936 , B60Q9/008 , G01S7/4873 , G01S17/87 , G01S2007/4975
摘要： An electro-optical detection system for detecting objects within the boundaries of a monitored zone, comprises a plurality of LED emitter and photodetector pairs. Each emitter (12) emits a beam of pulses of light energy into the monitored zone, and its paired photodetector (14) detects light energy including light energy from the beam that is reflected from an object within the monitored zone and generates light detection signals. A controller (10) operates the emitter and photodetector pairs and evaluates the light detection signals to discriminate between light energy of beams reflected from an object within the monitored zone and other light energy. The controller can selectively adjust the evaluation of the light detection signals to adjust the effective boundaries of the monitored zone.

5. 发明公开

EP0938722A4 DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE 失效
标题翻译： DETEKTIONSSYSTEM MITERHÖHTERRAUSCHTOLERANZ
公开(公告)号：EP0938722A4
公开(公告)日：2004-05-06
申请号：EP97946652
申请日：1997-11-13
申请人： AUTO SENSE LTD
发明人： JUDS SCOTT
IPC分类号： G08G1/16 , B60Q1/52 , G01S7/32 , G01S7/487 , G01S13/93 , G01S17/00 , G01S17/87 , G01S17/93 , G01S7/483 , G01S7/497 , G08B13/181
CPC分类号： G01S17/936 , B60Q9/008 , G01S7/4873 , G01S17/87 , G01S2007/4975
摘要： An electro-optical detection system for detecting objects within the boundaries of a monitored zone, comprises a plurality of LED emitter and photodetector pairs. Each emitter (12) emits a beam of pulses of light energy into the monitored zone, and its paired photodetector (14) detects light energy including light energy from the beam that is reflected from an object within the monitored zone and generates light detection signals. A controller (10) operates the emitter and photodetector pairs and evaluates the light detection signals to discriminate between light energy of beams reflected from an object within the monitored zone and other light energy. The controller can selectively adjust the evaluation of the light detection signals to adjust the effective boundaries of the monitored zone.
摘要翻译：一种用于检测被监测区域边界内的物体的电光检测系统，包括多个LED发射器和光电探测器对。每个发射器（12）将光能脉冲发射到被监视的区域中，并且其成对的光电探测器（14）检测包括来自被监视区域内的物体反射的光束的光能的光能并产生光检测信号。控制器（10）操作发射器和光电检测器对并评估光检测信号以区分从被监测区域内的物体反射的光束和其他光能。控制器可以选择性地调整光检测信号的评估，以调整被监视区域的有效边界。

6. 发明授权

EP0998735B1 MULTI-FREQUENCY PHOTOELECTRIC DETECTION SYSTEM 失效
标题翻译： MEHRFREQUENTES光电管检测系统
公开(公告)号：EP0998735B1
公开(公告)日：2004-04-07
申请号：EP98935871.8
申请日：1998-07-22
申请人： Auto-Sense, Ltd
发明人： JUDS, Scott , MATHEWS, Paul , LEWIS, Robert
IPC分类号： G08G1/16
CPC分类号： G01S17/936 , G01S7/4811 , G01S17/36 , G01S17/87 , G01S2013/9332

7. 发明授权

EP0523185B1 METHOD AND APPARATUS FOR DETECTING OBJECTS 失效
标题翻译：方法和设备感知的物体构成
公开(公告)号：EP0523185B1
公开(公告)日：1997-03-12
申请号：EP91908592.8
申请日：1991-04-10
申请人： AUTO-SENSE, LTD.
发明人： JUDS, Scott , MATHEWS, Paul
IPC分类号： G01S17/87 , G01S17/88 , G01S7/48
CPC分类号： G01S17/936 , G01S7/4816 , G01S7/4918
摘要： A method and apparatus are disclosed which allow for the detection of an object (14) by the generation of a radiated beam (18) and a subsequent reflection by the object (14) of a portion (20) thereof. The detection of particulate object material (16) due to a reflection of a portion (22) of the generated beam (18) is minimized.

8. 发明公开

EP0938722A1 DETECTION SYSTEM WITH IMPROVED NOISE TOLERANCE 失效
标题翻译：具有增强的噪声容限检测系统
公开(公告)号：EP0938722A1
公开(公告)日：1999-09-01
申请号：EP97946652.0
申请日：1997-11-13
申请人： Auto-Sense, Ltd
发明人： JUDS, Scott
IPC分类号： G08G1 , B60Q1 , G01S7 , G01S13 , G01S17
CPC分类号： G01S17/936 , B60Q9/008 , G01S7/4873 , G01S17/87 , G01S2007/4975
摘要： An electro-optical detection system for detecting objects within the boundaries of a monitored zone, comprises a plurality of LED emitter and photodetector pairs. Each emitter (12) emits a beam of pulses of light energy into the monitored zone, and its paired photodetector (14) detects light energy including light energy from the beam that is reflected from an object within the monitored zone and generates light detection signals. A controller (10) operates the emitter and photodetector pairs and evaluates the light detection signals to discriminate between light energy of beams reflected from an object within the monitored zone and other light energy. The controller can selectively adjust the evaluation of the light detection signals to adjust the effective boundaries of the monitored zone.

9. 发明授权

EP0530307B1 METHOD OF DETERMINING OPTIMAL DETECTION BEAM LOCATIONS USING REFLECTIVE FEATURE MAPPING 失效
标题翻译：优化探测器梁本地化的具有反射制图功能演示检测方法
公开(公告)号：EP0530307B1
公开(公告)日：1998-07-08
申请号：EP91910885.2
申请日：1991-04-10
申请人： AUTO-SENSE, LTD.
发明人： JUDS, Scott , MATHEWS, Paul
IPC分类号： G08B29/00 , G08G1/16 , G01S7/40 , G01S17/88
CPC分类号： G08G1/166
摘要： A method of determining the optimal positions of a plurality of detection energy beams (28) within a volume (26) of space under surveillance and used to detect the presence of an object (38) within such space comprises generating a set or map of reflection data corresponding to the points in said space where there is a high probability of detection. Each of a plurality of objects, such as vehicles (38), are successively displaced through the area under surveillance, and a set of sampling beams are trained on the object at each of a plurality of incremental positions to determine the distances, equatorial angle and azimuthal angle at which reflections from the object can be obtained. The recorded data provides a reflective feature map which can be used to determine the optimal number, placement and range of beams needed to reliably detect any of a plurality of objects, as in a collision avoidance system for vehicles.

10. 发明公开

EP0259445A4 OBJECT DETECTION METHOD AND APPARATUS EMPLOYING ELECTRO-OPTICS. 失效
标题翻译：检测方法的商品和电光装置。
公开(公告)号：EP0259445A4
公开(公告)日：1989-07-11
申请号：EP87901889
申请日：1987-02-19
申请人： AUTO SENSE LTD
发明人： BEGGS GEORGE , SPECK RICHARD
IPC分类号： G08G1/16 , G01S7/481 , G01S17/93
CPC分类号： G01S17/936 , G01S7/4811 , G01S2007/4975
摘要： Apparatus for detecting the presence of an object within an area under surveillance employs an electro-optical emitter for directing light into the area and an electro-optical receiver for sensing light reflected from the object which originates from the emitter. The emitter emits light energy of a preselected wavelength and is modulated at a preselected frequency to provide the emanating light energy with a characteristic signature. Light reflected by an object within the area under surveillance is filtered and converted to an electrical signal which varies in accordance with the magnitude of the filtered light having the preselected wavelength and modulation frequency. A selected portion of the electrical signal is amplified by a band-pass amplifier and is synchronously sampled in accordance with the modulation frequency to determine the magnitude of the filtered light which originated from the emitter. The sampled signal is compared with a threshold value to determine whether an object is present within the area under surveillance. The emitter and receiver are covered by a transparent shield to protect them against foreign matter. An electro-optical detector monitors the accumulation of foreign particulates on the shield. The apparatus may be desirably used in vehicles to detect the presence of adjacent objects, particularly within the vehicle's "blind spots" and thereby avoid collisions.

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