公开(公告)号：US20020149759A1

公开(公告)日：2002-10-17

申请号：US10119678

申请日：2002-04-11

申请人： Canon Kaubshiki Kaisha

发明人： Hideo Taka

IPC分类号： G01C003/00 ,  G01C003/08 ,  G01C005/00

CPC分类号： G02B7/34 ,  G01C3/08 ,  G01C3/18

摘要： A distance/defocus device has a plurality of areas in an observing frame, and time sequentially determines the distance to an object or an amount of defocus for each area by performing a correlation calculation while shifting images of the object with respect to each other. The calculation time can be reduced by determining a shift range of the correlation calculation for subsequent areas on the basis of the result of the correlation calculation for a previous, predetermined area.

摘要翻译： 距离/散焦装置在观察帧中具有多个区域，并且通过在相对于彼此移动对象的图像的同时执行相关计算来时间顺序地确定与对象的距离或散焦量。 可以通过基于先前的预定区域的相关计算的结果确定后续区域的相关计算的移位范围来减少计算时间。

公开(公告)号：US20020140924A1

公开(公告)日：2002-10-03

申请号：US09981292

申请日：2001-10-16

发明人： Richard J. Wangler ,  John T. Myers ,  Robert L. Gustavson ,  Robert E. McConnell II

IPC分类号： G01C003/08 ,  G01P003/36 ,  G01B011/24 ,  G01B011/30

CPC分类号： G01S17/89 ,  G01S7/4802 ,  G01S7/4817 ,  G01S17/88 ,  G08G1/015 ,  G08G1/04

摘要： A vehicle detection and classification sensor provides accurate 3D profiling and classification of highway vehicles for speeds up to 100 mph. A scanning time-of-flight laser rangefinder is used to measure the distance to the highway from a fixed point above the road surface and then measure the distance to the surfaces of any vehicle that is viewed by the sensor. The beam is pulsed at a high repetition rate for determining vehicle speeds with a high accuracy and uses the calculated speed and consecutive range measurements as the vehicle moves past the sensor to develop a three-dimensional profile of the vehicle. An algorithm is applied to the three-dimensional profile for providing a vehicle-classification. A laser is also used to count the number of axles associated with the vehicle.

摘要翻译： 车辆检测和分类传感器提供公路车辆的精确3D轮廓和分类，速度可达100 mph。 扫描飞行时间激光测距仪用于测量从路面上方固定点到高速公路的距离，然后测量与传感器观察到的任何车辆表面的距离。 光束以高重复率被脉冲以用于以高精度确定车辆速度，并且当车辆移动经过传感器以开发车辆的三维轮廓时，使用所计算的速度和连续的距离测量值。 将算法应用于三维轮廓以提供车辆分类。 激光也用于计算与车辆相关联的轴的数量。

公开(公告)号：US20020131035A1

公开(公告)日：2002-09-19

申请号：US10087758

申请日：2002-03-05

发明人： Takamoto Watanabe ,  Hirohumi Isomura ,  Katsuhiro Morikawa

IPC分类号： G01C003/08

CPC分类号： G01S17/32 ,  G01S7/4915 ,  G01S7/493

摘要： In a shift clock signal generating apparatus, a delay line includes a plurality of unit delay elements connected in cascade. A reference clock signal propagates in the delay line while being successively delayed by the unit delay elements. Switches have first ends connected with output terminals of the unit delay elements respectively, and second ends connected with a shift clock signal output path. When specified one among the switches is in its on position, a delayed clock signal which results from delaying the reference clock signal by a prescribed time interval is transmitted via the specified switch to the shift clock signal output path as a shift clock signal. The specified one among the switches is determined on the basis of data representing a phase difference of the shift clock signal from the reference clock signal. The specified switch is set in its on position.

摘要翻译： 在移位时钟信号发生装置中，延迟线包括级联连接的多个单位延迟元件。 参考时钟信号在延迟线中传播，同时被单位延迟元件连续延迟。 开关具有分别与单元延迟元件的输出端相连的第一端，第二端与移位时钟信号输出路径连接。 当开关中指定的一个处于其接通位置时，将基准时钟信号延迟指定时间间隔所产生的延迟时钟信号通过指定的开关传送到移位时钟信号输出路径作为移位时钟信号。 基于表示来自基准时钟信号的移位时钟信号的相位差的数据来确定开关中指定的开关。 指定的开关设置在其开启位置。

公开(公告)号：US20020118352A1

公开(公告)日：2002-08-29

申请号：US10055175

申请日：2002-01-25

申请人： Japan Atomic Energy Research Institute

发明人： Akira Ohzu ,  Yoichiro Maruyama ,  Masaaki Kato

IPC分类号： G01C003/08

CPC分类号： G01S17/107 ,  G01S17/89 ,  G01S17/95 ,  Y02A90/19

摘要： A fast gate scanning three-dimensional laser radar apparatus operating on such principles as fluorescence scattering, Raman scattering and differential absorption scattering, which uses a high-sensitivity, two-dimensional imaging CCD camera, an image intensifier or other two-dimensional photodetector suitable for use as a laser echo light signal receiver and detector that is designed to have a gating feature with short time slot, a fast gate scanning feature and a high frame (image capture) repetition rate so that a two- or three-dimensional spatial density distribution of fine particles, environmental pollutants, aerosols and other targets suspended in the atmosphere is acquired instantaneously whereas temporal changes in the direction, speed and flow of the distribution can be remotely monitored.

摘要翻译： 一种快速扫描三维激光雷达装置，其工作原理如荧光散射，拉曼散射和差分吸收散射，其使用高灵敏度二维成像CCD相机，图像增强器或其他二维光电探测器，适用于 用作激光回波光信号接收器和检测器，其被设计为具有短时隙的门控特征，快速门扫描特征和高帧（图像捕获）重复率，使得二维或三维空间密度分布 瞬时获得悬浮在大气中的细颗粒，环境污染物，气溶胶和其他目标，而远程监测分布方向，速度和流量的时间变化。

公开(公告)号：US20020101575A1

公开(公告)日：2002-08-01

申请号：US10101965

申请日：2002-03-21

申请人： Fuji Photo Optical Co., Ltd.

发明人： Hideo Yoshida

IPC分类号： G01C003/08

CPC分类号： G01C3/08 ,  G01S7/4912 ,  G01S17/46 ,  G02B7/32

摘要： A distance-measuring apparatus is arranged to project light toward an object to be measured, receive reflected light from the measured object, and detect the distance to the measured object through arithmetic operation and integral operation. In the distance-measuring apparatus, a capacitance of an integrating capacitor 6 is set so as to discharge/charge the integrating capacitor 6 to the maximum when a time necessary for the first integral is minimum. In the detection of the distance to the measured object, when the time necessary for the first integral is longer than the minimum time, the first integral and second integral of the integrating capacitor are carried out repeatedly.

摘要翻译： 距离测量装置被布置成将光投射到待测物体，接收来自测量物体的反射光，并通过算术运算和积分运算来检测到被测物体的距离。 在距离测量装置中，积分电容器6的电容被设定为当第一积分所需的时间最小时对积分电容器6进行放电/充电。 在检测与测量对象的距离时，当第一积分所需时间长于最小时间时，积分电容器的第一积分和第二积分被重复执行。

公开(公告)号：US20020067475A1

公开(公告)日：2002-06-06

申请号：US10032672

申请日：2001-10-25

发明人： Reinhard Waibel ,  Torsten Gogolla ,  Andreas Winter

IPC分类号： G01C003/08

CPC分类号： G01C3/08 ,  G01S7/481 ,  G01S7/497 ,  G01S7/4972 ,  G01S17/08 ,  G01S17/89

摘要： An optoelectronic laser distance-measuring instrument (1) with preselectable or sensitive reference points (3a, 3b, 3c) arranged on the outer edge of a portable housing (2) and having a radiation source (4), an associated radiation receiver (5) for a laser beam (6), a microcontroller (9), keypad (10), a display (11), which can be read off from the handling distance, for the depiction of a measured result (14), a camera lens (7) that is aimed in the direction of the laser beam (6) and has a image sensor (8), whose detected target area (12) can be graphically depicted on the display (11) at least partially together with a virtual measuring spot (13) calculated by the microcontroller (9) as well as with the measured result (14).

摘要翻译： 一种光电激光距离测量仪器（1），其具有布置在便携式外壳（2）的外边缘上并且具有辐射源（4），相关联的辐射接收器（5）的可选择或敏感的参考点（3a，3b，3c） ），用于描绘测量结果（14）的激光束（6），微控制器（9），键盘（10），可以从处理距离读取的显示器（11），相机镜头 （7），其针对激光束（6）的方向并且具有图像传感器（8），其检测到的目标区域（12）可以在显示器（11）上至少部分地与虚拟测量 微控制器（9）计算的点（13）以及测量结果（14）。

公开(公告)号：US20020036765A1

公开(公告)日：2002-03-28

申请号：US09772361

申请日：2001-01-30

发明人： Nathaniel Joseph McCaffrey ,  Robert James Andreas ,  Peter Alan Levine ,  Ramon Ubaldo Martinelli

IPC分类号： G01C003/08

CPC分类号： G01S17/89 ,  G01S7/4873 ,  G01S17/105

摘要： A three-dimensional imaging range finder is disclosed using a transmitted pulse reflected from a target. The range finder includes a pixel sensor for receiving light from the target and the reflected pulse. A global counter is provided for determining a time-of-flight value of the transmitted pulse. A processing circuit, which is coupled to the pixel sensor and the global counter, extracts the reflected pulse received by the pixel sensor, and stores the time-of-flight value upon extracting the reflected pulse. The pixel sensor provides a luminance signal and the processing circuit includes a high pass filter to extract the reflected pulse from the luminance signal.

摘要翻译： 公开了使用从目标反射的发射脉冲的三维成像测距仪。 测距仪包括用于接收来自目标的光和反射脉冲的像素传感器。 提供一个全局计数器用于确定发射脉冲的飞行时间值。 耦合到像素传感器和全局计数器的处理电路提取由像素传感器接收的反射脉冲，并且在提取反射脉冲时存储飞行时间值。 像素传感器提供亮度信号，并且处理电路包括高通滤波器以从亮度信号中提取反射的脉冲。

公开(公告)号：US20020018198A1

公开(公告)日：2002-02-14

申请号：US09870124

申请日：2001-05-30

发明人： Hans-Werner Pierenkemper

IPC分类号： G01C003/08

CPC分类号： G01S17/36 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/487 ,  G01S7/497 ,  G01S17/10 ,  G01S17/42

摘要： A method is described for detecting the distance between a measuring device comprising a transmitter and a receiver and an object, in which a modulated light signal is emitted by the transmitter in the direction of the object, the light signal reflected at the object is received by the receiver and is converted into a reflection signal, and the distance between the measuring device and the object is determined from the light transit time of the light signal received. In addition to the light signal reflected at the object, at least a part of the light signal emitted is received as a reference light signal by a receiver without reflection at the object and is converted into a reference signal. Subsequently the phase shift between the reflection signal and the reference signal is determined for the determination of the light transit time. Moreover, a distance measuring device working in accordance with the method of the invention is described.

摘要翻译： 描述了一种用于检测包括发射器和接收器的测量装置与物体之间的距离的方法，其中发射器在物体的方向上发射调制的光信号，在物体上反射的光信号被 接收器并被转换为反射信号，并且从所接收的光信号的光通过时间确定测量装置与物体之间的距离。 除了在物体上反射的光信号之外，发射的光信号的至少一部分由接收器作为参考光信号被接收而不在物体处反射并被转换成参考信号。 随后，确定反射信号和参考信号之间的相移以确定光通过时间。 此外，描述了根据本发明的方法工作的测距装置。

公开(公告)号：US20020012114A1

公开(公告)日：2002-01-31

申请号：US09849311

申请日：2001-05-07

申请人： ASAHI KOGAKU KOGYO KABUSHIKI KAISHA

发明人： Masami Shirai ,  Shinichi Suzuki ,  Homu Takayama

IPC分类号： G01C003/00 ,  G01C005/00 ,  G01C003/08

CPC分类号： G01S7/4812 ,  G01S17/08 ,  G01S17/36

摘要： An electronic distance meter includes a sighting telescope having an objective lens for sighting an object; a reflection member positioned behind the objective lens; an optical distance meter which includes a light-transmitting optical system for transmitting a measuring light via the reflection member and the objective lens, and a light-receiving optical system for receiving light which is reflected by the object, subsequently passed through the objective lens and not interrupted by the reflection member; a beam-diameter varying device, provided in association with the light-transmitting optical system, for varying a beam diameter of the measuring light; and a controller which varies the beam diameter via the beam-diameter varying device in accordance with a distance from the object to the electronic distance meter.

摘要翻译： 电子距离计包括具有用于瞄准物体的物镜的瞄准望远镜; 定位在物镜后面的反射构件; 一种光学距离计，包括用于透射经由反射构件和物镜的测量光的透光光学系统和用于接收被物体反射的光的光接收光学系统，随后通过物镜， 不被反射构件中断; 与光透射光学系统相关联地设置的用于改变测量光束的光束直径的光束直径变化装置; 以及根据从物体到电子距离计的距离经由光束直径变化装置改变光束直径的控制器。

公开(公告)号：US20010050764A1

公开(公告)日：2001-12-13

申请号：US09877082

申请日：2001-06-11

申请人： ASAHI KOGAKU KOGYO KABUSHIKI KAISHA

发明人： Masami Shirai

IPC分类号： G01C003/08

CPC分类号： G01C3/08

摘要： A surveying instrument includes a distance-measuring optical system having an objective lens via which a distance from the surveying instrument to an object is measured; and an optical distance meter which includes a reflection member positioned behind the objective lens, a light-transmitting optical system for transmitting a measuring light toward the object via the reflection member and the objective lens, and a light-receiving optical system for receiving a portion of the measuring light which is reflected by the object, subsequently passed through the objective lens, and not interrupted by the reflection member. The light-receiving optical system includes a plurality of light-guiding optical systems, so that the measuring light which is reflected by the object is selectively incident on an end of one of the plurality of light-guiding optical systems in accordance with the distance from the surveying instrument to the object.

摘要翻译： 测量仪器包括具有物镜的距离测量光学系统，通过该距离测量光学系统测量到测量仪器到物体的距离; 以及光学距离计，其包括位于物镜后面的反射构件，用于经由反射构件和物镜将测量光透射到物体的光透射光学系统，以及用于接收部分的光接收光学系统 被物体反射的测量光随后通过物镜，不被反射构件中断。 光接收光学系统包括多个导光光学系统，使得被物体反射的测量光根据距离被摄体的距离选择性地入射到多个导光光学系统中的一个的一端 测量仪器对象。