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公开(公告)号：US08319949B2
公开(公告)日：2012-11-27
申请号：US12141282
申请日：2008-06-18
申请人： Daniel Cantin , Pascal Gallant , François Babin
发明人： Daniel Cantin , Pascal Gallant , François Babin
IPC分类号： G01C3/08
CPC分类号： G01S17/10
摘要： A method for detecting an object using visible light comprises providing a visible-light source having a function of illuminating an environment. The visible-light source is driven to emit visible light in a predetermined mode, with visible light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection/backscatter of the emitted visible light is received from an object. The reflection/backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.
摘要翻译： 使用可见光检测物体的方法包括提供具有照亮环境的功能的可见光源。 驱动可见光源以预定模式发射可见光，以预定模式的可见光被发射，使得光源保持照亮环境的功能。 从物体接收发射的可见光的反射/反向散射。 反射/反向散射在所选波长范围内作为来自光源的期望的检测范围的函数进行滤波以获得光输入。 物体的存在或位置用作为光输入和预定模式的函数的期望的检测范围来识别。
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2.发明授权公开(公告)号：US07917320B2
公开(公告)日：2011-03-29
申请号：US12604846
申请日：2009-10-23
申请人： Marc Levesque , François Babin , Daniel Cantin
发明人： Marc Levesque , François Babin , Daniel Cantin
CPC分类号： G01S7/484 , G01S7/4868 , G01S7/487 , G01S17/10
摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.
摘要翻译： 减少响应时间的方法和装置以及随着光学测距仪测距的可能性的增加，数字化从从不同类型的物体返回的脉冲回波获得的信号波形，脉冲回波太弱，不能从 在捕获脉冲回波期间，单个波形或物体可能运动。 在本发明的第一实施例中，通过使用信号平均处理来减少数字光学测距仪近距离处的响应时间，其中要平均的数据数量根据预定功能的距离而变化。 在本发明的第二实施例中，沿着数字光学测距仪的视线测量对象的运动概率增加，并且通过在平均之前执行每个获取的信号波形的范围偏移来测量对象速度。 在本发明的第三实施例中，在数字光学测距仪的视线中获取的信号波形在预定的区域上被扫描，并且移动和平均的范围，以允许早期检测和进入该区域的物体的测距。
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3.发明授权公开(公告)号：US07640122B2
公开(公告)日：2009-12-29
申请号：US11936502
申请日：2007-11-07
申请人： Marc Levesque , François Babin , Daniel Cantin
发明人： Marc Levesque , François Babin , Daniel Cantin
IPC分类号： G06F19/00
CPC分类号： G01S7/484 , G01S7/4868 , G01S7/487 , G01S17/10
摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.
摘要翻译： 减少响应时间的方法和装置以及随着光学测距仪测距的可能性的增加，数字化从从不同类型的物体返回的脉冲回波获得的信号波形，脉冲回波太弱，不能从 在捕获脉冲回波期间，单个波形或物体可能运动。 在本发明的第一实施例中，通过使用信号平均处理来减少数字光学测距仪近距离处的响应时间，其中要平均的数据数量根据预定功能的距离而变化。 在本发明的第二实施例中，沿着数字光学测距仪的视线测量对象的运动概率增加，并且通过在平均之前执行每个获取的信号波形的范围偏移来测量对象速度。 在本发明的第三实施例中，在数字光学测距仪的视线中获取的信号波形在预定的区域上被扫描，并且移动和平均的范围，以允许早期检测和进入该区域的物体的测距。
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公开(公告)号：US07554652B1
公开(公告)日：2009-06-30
申请号：US12040008
申请日：2008-02-29
申请人： François Babin , Daniel Cantin
发明人： François Babin , Daniel Cantin
IPC分类号： G01C3/08
CPC分类号： G01S17/107
摘要： A rangefinding device and a method for determining the range of an object from a rangefinding device are provided. A train of light pulses each having an emission time and a pulse duration is generated. The pulse duration is set to twice the round-trip time to a maximum range of the device. The light pulses are reflected back toward the device by the object and detected according to three time intervals, respectively determined by a background gate, a ranging gate and a pulse energy gate. The light energy received during each interval is integrated and the integrated light value corresponding to the ranging gate is normalized using the values from the other two intervals. The range of the object is determined from the normalized ranging measurement and calibration data.
摘要翻译： 提供了一种测距装置和用于确定来自测距装置的物体的距离的方法。 产生具有发射时间和脉冲持续时间的一串光脉冲。 脉冲持续时间设置为设备最大范围的往返时间的两倍。 光脉冲被对象反射回设备，并根据三个时间间隔进行检测，分别由背景门，测距门和脉冲能量门决定。 在每个间隔期间接收的光能被积分，并且使用来自其它两个间隔的值来对应于测距门的积分光值被归一化。 对象的范围由归一化的测距和校准数据确定。
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5.发明授权公开(公告)号：US07388662B2
公开(公告)日：2008-06-17
申请号：US11241634
申请日：2005-09-30
申请人： Daniel Cantin , François Babin , Marc Lévesque
发明人： Daniel Cantin , François Babin , Marc Lévesque
IPC分类号： G01N15/02
CPC分类号： G01N21/53 , A01M7/0096 , G01N15/0205 , G01N15/0211 , G01N2021/1793 , G01N2021/4709 , G01S17/88
摘要： An optical system for measuring in real-time the spatial distribution of aerosol particles, such as pesticides or the like, sprayed from a vehicle over an agricultural field. An optical sensor is mounted directly on the vehicle and sends an excitation light beam through the aerosol as it is being sprayed. The resulting scattered light is received and analyzed to deduce therefrom information on the spatial distribution of the particles. This information is relayed to a processing unit, which in turn provides spraying instructions, for example a warning signal, to the operator of the system. The spraying of the aerosol can therefore be controlled in real-time to avoid contamination of sensitive areas.
摘要翻译： 一种用于实时测量车辆在农田上喷洒的气溶胶颗粒（如农药等）的空间分布的光学系统。 光学传感器直接安装在车辆上，并且在喷雾时将激发光束通过气溶胶。 所得到的散射光被接收和分析，从而推导出关于颗粒的空间分布的信息。 该信息被中继到处理单元，处理单元又向系统的操作者提供喷射指令，例如警告信号。 因此可以实时控制气雾剂的喷雾，以避免敏感区域的污染。
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公开(公告)号：US07895007B2
公开(公告)日：2011-02-22
申请号：US12604824
申请日：2009-10-23
申请人： Marc Levesque , François Babin , Daniel Cantin
发明人： Marc Levesque , François Babin , Daniel Cantin
IPC分类号： G01R13/00
CPC分类号： G01S7/484 , G01S7/4868 , G01S7/487 , G01S17/10
摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.
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公开(公告)号：US20100039637A1
公开(公告)日：2010-02-18
申请号：US12604824
申请日：2009-10-23
申请人： Marc Levesque , François Babin , Daniel Cantin
发明人： Marc Levesque , François Babin , Daniel Cantin
IPC分类号： G01C3/08
CPC分类号： G01S7/484 , G01S7/4868 , G01S7/487 , G01S17/10
摘要： Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging. In a third embodiment of the invention, the signal waveforms acquired in the line of sight of a digital optical rangefinder are scanned over a predetermined zone and range shifted and averaged to allow for early detection and ranging of objects that enter in the zone.
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公开(公告)号：US07855376B2
公开(公告)日：2010-12-21
申请号：US11612678
申请日：2006-12-19
申请人： Daniel Cantin , Yvan Mimeault , Pascal Gallant
发明人： Daniel Cantin , Yvan Mimeault , Pascal Gallant
CPC分类号： G08G1/095 , B60W40/04 , G01P13/00 , G01S7/481 , G01S7/4814 , G01S17/06 , G01S17/42 , G01S17/936 , G08G1/04
摘要： An object-detecting lighting system comprises a light source emitting visible light. A source controller is connected to the light source to drive the light source into emitting the visible light in a predetermined mode. An optical detector is positioned with respect to the light source and is adapted to detect the visible light as reflected/backscattered by an object. A data/signal processor is connected to the source controller and the optical detector to receive detection data from the optical detector. The data/signal processor produces a data output associated to the object as a function of the predetermined mode and the detection data.
摘要翻译： 物体检测照明系统包括发射可见光的光源。 源极控制器连接到光源以驱动光源以预定模式发射可见光。 光学检测器相对于光源定位，并且适于检测被物体反射/反向散射的可见光。 数据/信号处理器连接到源控制器和光检测器以接收来自光检测器的检测数据。 数据/信号处理器根据预定模式和检测数据产生与对象相关联的数据输出。
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公开(公告)号：US20080309914A1
公开(公告)日：2008-12-18
申请号：US12141282
申请日：2008-06-18
申请人： Daniel Cantin , Pascal Gallant , Francois Babin
发明人： Daniel Cantin , Pascal Gallant , Francois Babin
CPC分类号： G01S17/10
摘要： A method for detecting an object using visible light comprises providing a visible-light source having a function of illuminating an environment. The visible-light source is driven to emit visible light in a predetermined mode, with visible light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection/backscatter of the emitted visible light is received from an object. The reflection/backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.
摘要翻译： 使用可见光检测物体的方法包括提供具有照亮环境的功能的可见光源。 驱动可见光源以预定模式发射可见光，以预定模式的可见光被发射，使得光源保持照亮环境的功能。 从物体接收发射的可见光的反射/反向散射。 反射/反向散射在所选波长范围内作为来自光源的期望的检测范围的函数进行滤波以获得光输入。 物体的存在或位置用作为光输入和预定模式的函数的期望的检测范围来识别。
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10.发明授权LED object detection system and method combining complete reflection traces from individual narrow field-of-view channels 有权LED物体检测系统和方法组合来自各个窄视野通道的完整反射迹线公开(公告)号：US08242476B2
公开(公告)日：2012-08-14
申请号：US12949212
申请日：2010-11-18
申请人： Yvan Mimeault , Daniel Cantin , Pascal Gallant
发明人： Yvan Mimeault , Daniel Cantin , Pascal Gallant
CPC分类号： G01S7/4814 , G01S17/42 , G01S17/936
摘要： A multi-channel LED object detection system and a method for detecting an object are provided. The method includes providing and orienting a light source having a wide field-of-illumination to encompass the width of the environment; providing and orienting a detector having a wide field-of-view to encompass the width of the environment, the detector having a plurality of sub-detectors with individual narrow field-of-views, driving the LED source into emitting light to illuminate the width of the environment; receiving and acquiring an individual complete trace of a reflection/backscatter of the emitted light on the object at each sub-detector; converting the acquired individual complete trace into an individual digital signal; and detecting and identifying a presence of an object, a position of the object, a distance between the object and the LED source and/or a visibility, using the emitted light waveform and an individual digital signal.
摘要翻译： 提供了一种多通道LED物体检测系统和用于检测物体的方法。 该方法包括提供和定向具有宽的照明场所的光源以包围环境的宽度; 提供和定向具有宽视场的检测器以包围环境的宽度，检测器具有多个具有单个窄视场的子检测器，将LED源驱动为发射光以照亮宽度 的环境; 在每个子检测器处接收和获取在物体上发射的光的反射/反向散射的单独完整迹线; 将所获取的单个完整轨迹转换为单独的数字信号; 并使用所发射的光波形和单独的数字信号来检测和识别物体的存在，物体的位置，物体和LED源之间的距离和/或可见度。
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