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公开(公告)号：US20090079954A1
公开(公告)日：2009-03-26
申请号：US11860211
申请日：2007-09-24
申请人： Alton Smith , Gregory Carras , David Jones , Chris Johnson
发明人： Alton Smith , Gregory Carras , David Jones , Chris Johnson
IPC分类号： G01C3/02
CPC分类号： G01C15/002 , G01S7/4811 , G01S7/483 , G01S17/10 , G01S17/36 , G01S17/48 , G01S17/87
摘要： Described are systems/devices and methods for measuring distances using a laser distance meter. The device may include a range finder measuring a distance; and a processor receiving the distance from the range finder and performing a calculation based on the distance. The method may include steps of determining, using a range finder included in a mobile device, a distance; and calculating, using a processor of the mobile device, one of an area and a volume based on the distance.
摘要翻译： 描述了使用激光测距仪测量距离的系统/设备和方法。 该装置可以包括测量距离的测距仪; 以及处理器，其接收距离测距器的距离，并且基于该距离执行计算。 该方法可以包括以下步骤：使用包括在移动设备中的测距仪来确定距离; 以及基于所述距离来计算使用所述移动设备的处理器的区域和体积之一。
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公开(公告)号：US07466359B2
公开(公告)日：2008-12-16
申请号：US11087506
申请日：2005-03-24
申请人： Kazuhito Enomoto , Nobuaki Fujimura
发明人： Kazuhito Enomoto , Nobuaki Fujimura
IPC分类号： H04N5/222
摘要： An image-pickup apparatus for capturing an object includes a distance calculating unit for measuring a phase difference (time difference) from the emission of light from a light emitting unit to the reception of reflected light by a light receiving unit for each unit composed of a predetermined number of adjacent pixels of the object to calculate a distance from the image-pickup apparatus to each corresponding pixel unit of the object, and an image processing unit for corresponding the distance calculated in units of the predetermined number of pixels to the image captured by the light receiving unit. The image processing unit supplies a display unit with only pixels corresponding to a predetermined range in the image generated by the distance calculating unit to display the pixels in units of the predetermined number of pixels on the display unit.
摘要翻译： 用于拍摄对象的图像拾取装置包括距离计算单元，用于测量由发光单元发出的光的相位差（时间差）到由每个单元组成的光接收单元的反射光的接收 计算物体的预定数量的相邻像素，以计算从图像拾取装置到对象的每个相应像素单元的距离;以及图像处理单元，用于对应于以预定像素数为单位计算的距离与由 光接收单元。 图像处理单元仅向显示单元提供与由距离计算单元生成的图像中的预定范围相对应的像素，以在显示单元上以预定像素数为单位显示像素。
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公开(公告)号：US20080304043A1
公开(公告)日：2008-12-11
申请号：US11721977
申请日：2005-12-09
申请人： Paul Benz , Jurg Hinderling , Martin De-Lang
发明人： Paul Benz , Jurg Hinderling , Martin De-Lang
IPC分类号： G01C3/08
CPC分类号： G01S17/36 , G01S7/4861 , G01S7/4865 , G01S13/227 , G01S17/10
摘要： According to the invention, high precision distance measurement may be carried out by the broadcast of pulsed electromagnetic radiation (ES) with at least two pulse repetition frequencies, whereby the pulse repetition frequencies are selected such that the corresponding pulse separations do not have a common multiple in the range of the order of magnitude of a maximum external measurement range. The radiation is hence transmitted both to a target for measurement over the measurement path outside the device and also over a reference path inside the device, whereby the radiation (IS) passing along the reference path defines at least one start pulse and the radiation (ES) passing along the measurement path defines at least one stop pulse.
摘要翻译： 根据本发明，可以通过以至少两个脉冲重复频率的脉冲电磁辐射（ES）的广播来执行高精度距离测量，从而选择脉冲重复频率使得相应的脉冲间隔不具有公共倍数 在最大外部测量范围的数量级范围内。 因此，辐射被传输到设备外部的测量路径上的测量目标以及设备内部的参考路径上，由此通过参考路径的辐射（IS）限定了至少一个起始脉冲和辐射（ES ）通过测量路径定义至少一个停止脉冲。
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124.发明授权Method and device for redundant distance measurement and mismatch cancellation in phase-measurement systems 有权相位测量系统中冗余距离测量和失配消除的方法和装置公开(公告)号：US07462808B2
公开(公告)日：2008-12-09
申请号：US11500266
申请日：2006-08-07
摘要： The method serves for canceling errors caused by mismatch of different signal paths in a photodetector with a plurality (k) of storage elements for the photogenerated signals, as typically used in phase-measurement systems. The signal-capturing process is performed in at least two measurement cycles (j) . A first cycle (j=1) is executed with the conventional setup with no phase delay in the control signals. It is followed by further measurement cycles (j=2, 3, 4) which use control signals shifted by a constant phase shift (90°). Corresponding signals are read out through different signal paths. At the end, the signals corresponding to a certain phase (Φ) are added, thus canceling possible offset values.
摘要翻译： 该方法用于消除由具有用于光生信号的多个（k）个存储元件的光电检测器中不同信号路径引起的误差，如通常在相位测量系统中使用的那样。 信号捕获处理在至少两个测量周期（j）中进行。 第一个周期（j = 1）在传统的设置中执行，在控制信号中没有相位延迟。 随后进一步的测量周期（j = 2,3,4），其使用以恒定相移（90°）移位的控制信号。 相应的信号通过不同的信号路径读出。 最后，添加与特定相位（Phi）对应的信号，从而取消可能的偏移值。
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公开(公告)号：US07453554B2
公开(公告)日：2008-11-18
申请号：US11704840
申请日：2007-02-09
申请人： Shou-Qing Yang , Yin-Long Luo , Song Li
发明人： Shou-Qing Yang , Yin-Long Luo , Song Li
IPC分类号： G01C3/08
摘要： A phase measurement method is disclosed, which includes inputting a predetermined voltage to the photodiode; receiving an optical signal and transforming into an electrical signal; generating a sampled signal with a signal transforming process; determining whether the amplitude value of the sampled signal in a predetermined range or not; if the amplitude of the sampled signal is not in the predetermined amplitude range, adjusting the predetermined voltage and receiving the optical signal and judging again until the amplitude value falls into the predetermined amplitude range; if the amplitude of the sampled signal is in the predetermined amplitude range, calculating the first phase value; and judging whether the predetermined voltage adjusted or not. If the predetermined voltage has been adjusted, calculating the compensating phase value and the second phase value in accordance with the adjusted predetermined voltage.
摘要翻译： 公开了一种相位测量方法，其包括向光电二极管输入预定电压; 接收光信号并转换成电信号; 用信号变换处理产生采样信号; 确定采样信号的振幅值是否在预定范围内; 如果采样信号的振幅不在预定幅度范围内，则调整预定电压并接收光信号并再次判断，直到振幅值落入预定幅度范围内; 如果采样信号的幅度在预定幅度范围内，则计算第一相位值; 并判断是否调整了预定电压。 如果已经调整了预定电压，则根据调整的预定电压来计算补偿相位值和第二相位值。
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公开(公告)号：US20080239281A1
公开(公告)日：2008-10-02
申请号：US12058904
申请日：2008-03-31
申请人： Robert E. Bridges
发明人： Robert E. Bridges
IPC分类号： G01C3/08
摘要： An absolute distance meter for measuring a distance to a target may include a synthesizer including a first quadrature modulator and structured to receive a reference signal having a reference frequency and output a first signal having a first frequency and a second signal having a second frequency, a laser structured to output a laser beam, wherein the laser beam is modulated by the second signal, an optical system for directing the laser beam toward the target, a reference phase calculating system structured to calculate a reference phase based on signals having the first frequency and the second frequency, a target optical detector structured to receive at least a portion of the laser beam returned from the target and structured to output a measured electrical signal having the second frequency based on the at least a portion of the laser beam, and a measure phase calculating system structured to calculate a measure phase based on the measured electrical signal and the first signal.
摘要翻译： 用于测量到目标的距离的绝对距离计可以包括合成器，其包括第一正交调制器，并被构造为接收具有参考频率的参考信号，并输出具有第一频率的第一信号和具有第二频率的第二信号， 用于输出激光束的激光器，其中激光束被第二信号调制，用于将激光束引向目标的光学系统;基准相位计算系统，被构造为基于具有第一频率的信号来计算参考相位;以及 第二频率，目标光学检测器，其被构造为接收从目标物返回的激光束的至少一部分，并被构造为输出基于激光束的至少一部分的具有第二频率的测量电信号，以及测量 相位计算系统被构造为基于所测量的电信号和第一信号来计算测量相位。
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公开(公告)号：US20080239280A1
公开(公告)日：2008-10-02
申请号：US12066318
申请日：2006-09-01
申请人： Claude Watgen , Laurent Lamesch
发明人： Claude Watgen , Laurent Lamesch
IPC分类号： G01C3/08
摘要： “A method for 3D imaging of an actively illuminated target region includes emitting intensity-modulated light at a variable modulation frequency into the target region, the emitted light is scattered/reflected in the target region depending on the optical properties of the objects or beings present therein, a scattered and/or reflected fraction of the light is detected during an integration time interval by phase-sensitive integration in each pixel of an imaging sensor, the modulation phase between the emitted and the detected light is determined and spatially resolved, and distance information is calculated based on the spatially resolved modulation phase and an average frequency of the modulation frequency.”
摘要翻译： “用于主动照射的目标区域的3D成像的方法包括以可变的调制频率向目标区域发射强度调制的光，根据存在的物体或存在的物体的光学特性，发射的光在目标区域中被散射/反射 其中，通过在成像传感器的每个像素中的相敏积分在积分时间间隔期间检测光的散射和/或反射分数，确定发射光和检测光之间的调制相位并在空间上分辨距离 基于空间分辨的调制相位和调制频率的平均频率来计算信息。
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公开(公告)号：US20080151217A1
公开(公告)日：2008-06-26
申请号：US11911183
申请日：2006-06-28
申请人： Uwe Skultety-Betz , Bjoern Haase , Joerg Stierle , Peter Wolf , Kai Renz
发明人： Uwe Skultety-Betz , Bjoern Haase , Joerg Stierle , Peter Wolf , Kai Renz
CPC分类号： G01D11/245 , G01S7/481 , G01S17/36 , H05K5/069 , Y10T29/49002
摘要： The invention relates to measuring device, particularly a distance measuring device for contactlessly measuring distance, comprising a housing (12) made of at least one first material and with at least one electronic component (56), which is arranged inside an interior (48) of the housing (12), as well as with a second material that at least partially surrounds the housing (48). The invention provides that the second material also seals at least one opening (63) of the housing interior (48). The invention also relates to a method for producing a measuring device of the aforementioned type during which the second material is provided as a sealing element that seals at least one opening of the housing interior.
摘要翻译： 本发明涉及测量装置，特别是用于非接触式测量距离的距离测量装置，包括由至少一个第一材料制成的壳体和至少一个电子部件（56），所述至少一个电子部件布置在内部（48）内， 壳体（12）以及至少部分地围绕壳体（48）的第二材料。 本发明提供第二材料还密封壳体内部（48）的至少一个开口（63）。 本发明还涉及一种用于生产上述类型的测量装置的方法，其中第二材料被设置为密封壳体内部的至少一个开口的密封元件。
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公开(公告)号：US07388655B2
公开(公告)日：2008-06-17
申请号：US11723542
申请日：2007-03-20
申请人： Toshihiro Mori
发明人： Toshihiro Mori
IPC分类号： G01C3/08
摘要： The present invention provides a rangefinder that has a light source for outputting a measuring beam, an AM modulation unit that modulates the measuring beam with a modulation signal, a light receiving unit that detects a reflected beam that is part of the modulated measuring beam and reflected by a measurement object, a phase difference detection unit that finds a phase difference between the measuring beam and the reflected beam, a distance arithmetic unit that calculates a distance to the measurement object based on the detected phase difference, a burst drive unit for pulse-driving the light source to operate in burst emission, and a wave position detection unit that detects a wave position based on a delay time, wherein the distance arithmetic unit calculates the distance to the measurement object based on the detected wave position and the detected phase difference.
摘要翻译： 本发明提供了一种测距仪，其具有用于输出测量光束的光源，用调制信号调制测量光束的AM调制单元，检测作为调制测量光束的一部分并被反射的反射光束的光接收单元 通过测量对象，相位差检测单元，其找出测量光束和反射光束之间的相位差;距离算术单元，其基于检测到的相位差计算到测量对象的距离;脉冲串驱动单元， 驱动所述光源进行突发发生，以及波位置检测单元，其基于延迟时间检测波位置，其中所述距离运算单元基于所检测的波位置和所检测的相位差来计算到所述测量对象的距离 。
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公开(公告)号：US20080007709A1
公开(公告)日：2008-01-10
申请号：US11825582
申请日：2007-07-06
申请人： Cyrus Bamji , Hakan Yalcin
发明人： Cyrus Bamji , Hakan Yalcin
摘要： Rapid calibration of a TOF system uses a stationary target object and electrically introduces phase shift into the TOF system to emulate target object relocation. Relatively few parameters suffice to model a parameterized mathematical representation of the transfer function between measured phase and Z distance. The phase-vs-distance model is directly evaluated during actual run-time operation of the TOF system. Preferably modeling includes two components: electrical modeling of phase-vs-distance characteristics that depend upon electrical rather than geometric characteristics of the sensing system, and elliptical modeling that phase-vs-distance characteristics that depending upon geometric rather than electrical characteristics of the sensing system.
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