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1. 发明授权

US07336346B2 Distance measuring device and method thereof 有权
标题翻译：距离测量装置及其方法
公开(公告)号：US07336346B2
公开(公告)日：2008-02-26
申请号：US11435284
申请日：2006-05-17
申请人： Akihiro Aoki , Yutaka Nakamura , Koji Sasaki , Toshihiro Uchimura , Futoshi Osada , Hayami Kikawa
发明人： Akihiro Aoki , Yutaka Nakamura , Koji Sasaki , Toshihiro Uchimura , Futoshi Osada , Hayami Kikawa
IPC分类号： G01C3/08
CPC分类号： G01S17/36
摘要： A distance measuring device is provided that reduces the time required for a distance measurement without degrading accuracy of the measured value. The distance measuring device includes a reference signal oscillator (26) that generates a reference signal (K), a light source (20) that emits a distance measuring light (L) modulated based on the reference signal, a light receiving element (28) that receives the distance measuring light reflected from a target (22) and converts the distance measuring light to a distance measuring signal (M), a frequency converter (37) that converts the distance measuring signal to an intermediate frequency signal, an A/D converter (42) that samples the intermediate frequency signal in synchronization with the reference signal, a memory (46) that stores data of the sampled intermediate frequency signal, and a CPU (44) that calculates a distance based on the intermediate frequency signal data, the CPU calculates amplitude of each frequency of the intermediate frequency signal based on the intermediate frequency signal data, determines an average of the amplitude, and ends sampling to calculate a distance when the number of pieces of the intermediate frequency signal data is equal to or more than a minimum required number and the average has become equal to or more than a predetermined value.
摘要翻译：提供了一种距离测量装置，其减少测量所需的时间，而不降低测量值的精度。测距装置包括产生基准信号（K）的参考信号振荡器（26），发射基于参考信号调制的测距光（L）的光源（20），光接收元件（28）接收从目标（22）反射的距离测量光并将距离测量光转换成距离测量信号（M），将测距信号转换为中频信号的变频器（37），A / D 转换器（42），与参考信号同步地采样中频信号;存储器（46），存储采样的中频信号的数据;以及CPU（44），其基于中频信号数据计算距离， CPU基于中频信号数据计算中频信号的每个频率的幅度，确定幅度的平均值，并将采样结束为ca 当中频信号数据的数量等于或大于最小所需数量并且平均值已经变得等于或大于预定值时，计算距离。

2. 发明申请

US20060285102A1 Distance measuring device and method thereof 有权
标题翻译：距离测量装置及其方法
公开(公告)号：US20060285102A1
公开(公告)日：2006-12-21
申请号：US11435284
申请日：2006-05-17
申请人： Akihiro Aoki , Yutaka Nakamura , Koji Sasaki , Toshihiro Uchimura , Futoshi Osada , Hayami Kikawa
发明人： Akihiro Aoki , Yutaka Nakamura , Koji Sasaki , Toshihiro Uchimura , Futoshi Osada , Hayami Kikawa
IPC分类号： G01C3/08
CPC分类号： G01S17/36
摘要： A distance measuring device is provided that reduces the time required for a distance measurement without degrading accuracy of the measured value. The distance measuring device includes a reference signal oscillator (26) that generates a reference signal (K), a light source (20) that emits a distance measuring light (L) modulated based on the reference signal, a light receiving element (28) that receives the distance measuring light reflected from a target (22) and converts the distance measuring light to a distance measuring signal (M), a frequency converter (37) that converts the distance measuring signal to an intermediate frequency signal, an A/D converter (42) that samples the intermediate frequency signal in synchronization with the reference signal, a memory (46) that stores data of the sampled intermediate frequency signal, and a CPU (44) that calculates a distance based on the intermediate frequency signal data, the CPU calculates amplitude of each frequency of the intermediate frequency signal based on the intermediate frequency signal data, determines an average of the amplitude, and ends sampling to calculate a distance when the number of pieces of the intermediate frequency signal data is equal to or more than a minimum required number and the average has become equal to or more than a predetermined value.
摘要翻译：提供了一种距离测量装置，其减少测量所需的时间，而不降低测量值的精度。测距装置包括产生基准信号（K）的参考信号振荡器（26），发射基于参考信号调制的测距光（L）的光源（20），光接收元件（28）接收从目标（22）反射的距离测量光并将距离测量光转换成距离测量信号（M），将测距信号转换为中频信号的变频器（37），A / D 转换器（42），与参考信号同步地采样中频信号;存储器（46），存储采样的中频信号的数据;以及CPU（44），其基于中频信号数据计算距离， CPU基于中频信号数据计算中频信号的每个频率的幅度，确定幅度的平均值，并将采样结束为ca 当中频信号数据的数量等于或大于最小所需数量并且平均值已经变得等于或大于预定值时，计算距离。

3. 发明授权

US07339655B2 Electric optical distance wavelength meter 失效
标题翻译：电光学距离波长计
公开(公告)号：US07339655B2
公开(公告)日：2008-03-04
申请号：US11252589
申请日：2005-10-19
申请人： Yutaka Nakamura , Hayami Kikawa
发明人： Yutaka Nakamura , Hayami Kikawa
IPC分类号： G01C3/08
CPC分类号： G01C3/08 , G01S7/497 , G01S17/36
摘要： It is an object of the present invention to provide an electric optical distance wavelength meter detecting the time when the switching is completed and shortening the time required for distance measurement by immediately starting the distance measurement when measurement light and reference light are switched by a light path switching device. An electric optical distance wavelength meter includes a light emitting element for emitting measurement light toward a target placed on a measurement point; a light receiving element for receiving the measurement light coming back after reflecting on the target; a CPU for calculating the distance to the target or the object based on light receiving signals from the light receiving element; and a light path switching device for switching the measurement light so that the measurement light passes through an internal light path from the light emitting element to the light receiving element.
摘要翻译：本发明的目的是提供一种电光学距离波长计，其检测切换完成的时间，并且当通过光路切换测量光和参考光时，通过立即开始距离测量来缩短距离测量所需的时间开关装置。电光学距离波长计包括：发射测量光的发光元件，朝向放置在测量点上的目标; 光接收元件，用于接收在目标上反射之后返回的测量光; CPU，用于基于来自光接收元件的光接收信号计算到目标或物体的距离; 以及光路切换装置，用于切换测量光，使得测量光通过从发光元件到光接收元件的内部光路。

4. 发明申请

US20060082758A1 Electric optical distance wavelength meter 失效
标题翻译：电光学距离波长计
公开(公告)号：US20060082758A1
公开(公告)日：2006-04-20
申请号：US11252589
申请日：2005-10-19
申请人： Yutaka Nakamura , Hayami Kikawa
发明人： Yutaka Nakamura , Hayami Kikawa
IPC分类号： G01C3/08
CPC分类号： G01C3/08 , G01S7/497 , G01S17/36
摘要： It is an object of the present invention to provide an electric optical distance wavelength meter detecting the time when the switching is completed and shortening the time required for distance measurement by immediately starting the distance measurement when measurement light and reference light are switched by a light path switching device. An electric optical distance wavelength meter includes a light emitting element for emitting measurement light toward a target placed on a measurement point; a light receiving element for receiving the measurement light coming back after reflecting on the target; a CPU for calculating the distance to the target or the object based on light receiving signals from the light receiving element; and a light path switching device for switching the measurement light so that the measurement light passes through an internal light path from the light emitting element to the light receiving element.
摘要翻译：本发明的目的是提供一种电光学距离波长计，其检测切换完成的时间，并且当通过光路切换测量光和参考光时，通过立即开始距离测量来缩短距离测量所需的时间开关装置。电光学距离波长计包括：发射测量光的发光元件，朝向放置在测量点上的目标; 光接收元件，用于接收在目标上反射之后返回的测量光; CPU，用于基于来自光接收元件的光接收信号计算到目标或物体的距离; 以及光路切换装置，用于切换测量光，使得测量光通过从发光元件到光接收元件的内部光路。

5. 发明申请

US20100181469A1 ANGULAR CORRECTION METHOD FOR ROTARY ENCODER 有权
标题翻译：旋转编码器的角度校正方法
公开(公告)号：US20100181469A1
公开(公告)日：2010-07-22
申请号：US12663514
申请日：2007-10-17
申请人： Hayami Kikawa , Satoshi Yanobe
发明人： Hayami Kikawa , Satoshi Yanobe
IPC分类号： G01D5/34
CPC分类号： G01D5/2449 , G01D5/24452 , G01D5/3473 , G01D5/36
摘要： [Object] To provide an angular correction method with which angular skip does not occur in determining an angle between angular graduations of a dial of a rotary encoder by interpolation calculation.[Solution Means] Angular correction data are obtained by a residual curve determining step (S2) of determining a residual ri between a position computed from a model and an actually read position P, and of fitting the residual ri to a polynomial f(x) which is a function of an angular graduation image number x to determine a residual curve, r=f(x), a slope computing step (S4) of computing a tangential slope f′(xi) of the residual curve; an angular skip computing step (S5) of computing an angular graduation image position correction quantity Ci from a residual ri and the slope f′(xi), of determining a measured angle value θ0 by using the correction quantity Ci, of switching the combination of angular graduation images to a forward side and a backward side to determine measured angle values θ−1 and θ−1, and of computing the angular skip quantity; an order determining step (S7) of determining the order of the polynomial f(x) such that the angular skip quantity is minimized; and an angular correction data recording step (S8) of recording the residual and the tangential slope.
摘要翻译：提供一种角度校正方法，通过插值计算来确定旋转编码器的刻度盘的角度刻度之间不会发生角度跳跃。 [解决方案]角度校正数据是通过确定从模型计算出的位置与实际读取位置P之间的残差ri的残差曲线确定步骤（S2）获得的，并且将残差ri拟合为多项式f（x）其是角度分度图像数x的函数，以确定残差曲线，r = f（x），计算残差曲线的切向斜率f'（xi）的斜率计算步骤（S4）通过使用校正量Ci来确定测量的角度值＆amp; t; 0，通过使用校正量Ci来计算来自剩余ri的角度刻度图像位置校正量Ci和斜率f'（xi）的角度跳跃计算步骤（S5）将角度刻度图像组合到前侧和后侧，以确定测量的角度值和角度; -1和＆Theta; -1，并计算角度跳跃量; 确定多项式f（x）的顺序的顺序确定步骤（S7），使得角度跳跃量最小化; 以及记录剩余和切向斜率的角度校正数据记录步骤（S8）。

6. 发明授权

US08330097B2 Angular correction method for rotary encoder 有权
标题翻译：旋转编码器角度校正方法
公开(公告)号：US08330097B2
公开(公告)日：2012-12-11
申请号：US12663514
申请日：2007-10-17
申请人： Hayami Kikawa , Satoshi Yanobe
发明人： Hayami Kikawa , Satoshi Yanobe
IPC分类号： G03D3/02 , G01D5/244 , G01D5/36
CPC分类号： G01D5/2449 , G01D5/24452 , G01D5/3473 , G01D5/36
摘要： An angular correction method is provided for a rotary encoder in which angular skip does not occur in determining an angle at a position of switching a combination of successive angular graduation images used in interpolation calculation. An angular correction quantity Ci includes (1) a residual ri between a position computed from a model and an actually read position P, for each angular graduation image position and (2) a tangential slope f′(xi) of residual curve, r=f(x), determined by fitting the residuals to a polynomial f(x) which is a function of angular graduation image number x. The actually-read position P is corrected as P+Ci to perform interpolation calculation determining an angle without angular skip.
摘要翻译：为旋转编码器提供角度校正方法，其中在确定在插值计算中使用的连续角度刻度图像的组合的切换位置处的角度时不发生角跳。角度校正量Ci包括（1）对于每个角度刻度图像位置，从模型计算的位置和实际读取位置P之间的残差ri，以及（2）残差曲线的切向斜率f'（xi），r = 通过将残差拟合为作为角度刻度图像数x的函数的多项式f（x）来确定f（x）。实际读取位置P被校正为P + Ci，以进行无角度跳跃的角度的插值计算。

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