会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Fault diagnosis and preliminary location system and method for transformer core looseness
    • 变压器铁芯松动故障诊断及初步定位系统及方法
    • US09404957B2
    • 2016-08-02
    • US14128603
    • 2012-07-19
    • Kai ChenChunning WangHongzhong MaKai LiYiming WuYing ZhangHongtao LiuPeng GaoTaotao Chen
    • Kai ChenChunning WangHongzhong MaKai LiYiming WuYing ZhangHongtao LiuPeng GaoTaotao Chen
    • G01R31/02G01H1/00
    • G01R31/027G01H1/00
    • This invention publishes a fault diagnosis and location system for transformer core looseness, consists of vibration sensors, data collection and computer. It is of power transformer fault intelligent diagnosis technology technical field. Fault diagnosis and location method uses three vibration sensors positioned on the top of transformer tank, to obtain vibration signal, uses signal processing to analyze the signal, and obtains fault characteristics of the transformer core looseness. The characteristics respectively are 50 Hz, 150 Hz and 300 Hz frequency components, in which 300 Hz is main feature. When they reach a certain value at one position, it suggests that transformer core looseness near this position. By the comparison of differences among signals of three positions, fault location can be done. This invention manifests fault characteristics accurately and detects core looseness efficiently.The invention uses the electricity grid frequency of 50 Hz for example, for 60 Hz power system, above 50 Hz, 150 Hz, 300 Hz characteristic frequencies are 60 Hz, 180 Hz and 360 Hz.
    • 本发明公布了变压器磁芯松动故障诊断定位系统,由振动传感器,数据采集和计算机组成。 是电力变压器故障智能诊断技术技术领域。 故障诊断和定位方法采用位于变压器箱顶部的三个振动传感器,获得振动信号,采用信号处理分析信号,获得变压器磁芯松动的故障特征。 特性分别为50Hz,150Hz和300Hz频率分量,其中300Hz为主要特征。 当它们在一个位置达到一定值时,表明变压器芯在这个位置附近松动。 通过比较三个位置的信号之间的差异,可以进行故障定位。 本发明精确表现了故障特征,有效地检测了磁芯的松动。 本发明使用例如50Hz的电网频率,对于60Hz电力系统,高于50Hz,150Hz,300Hz特征频率为60Hz,180Hz和360Hz。
    • 7. 发明授权
    • Signal processing apparatus, signal processing method and storage system
    • 信号处理装置,信号处理方法和存储系统
    • US08472563B2
    • 2013-06-25
    • US11524566
    • 2006-09-21
    • Atsushi EsumiKai LiHidemichi Mizuno
    • Atsushi EsumiKai LiHidemichi Mizuno
    • H04L25/06
    • H03K5/007H03K5/082
    • A signal processing apparatus includes a first baseline wander correcting unit, provided in a processing path in which a predetermined processing is performed on an input signal, which corrects baseline wander by a feedforward and a second baseline wander correcting unit, provided anterior to the first baseline wander unit, which corrects the baseline wander by a feedback control. The first baseline wander correcting unit derives an amount of baseline wander. Further, it calculates a value corresponding to an average value of the amount of derived baseline wander and fine-adjusts a correction amount of baseline. Then it corrects the baseline wander by using the fine-adjusted baseline amount. The second baseline wander correcting unit calculates a value corresponding to an average value of the amount of baseline wander derived by the baseline wander derivation unit and coarse-adjusts a correction amount of baseline, and corrects the baseline wander by using the coarse-adjusted baseline amount. The fine correcting by the first baseline wander correcting unit and the coarse correcting by the second baseline correcting unit ensure efficient correction of baseline wander.
    • 信号处理装置包括:第一基线漂移校正单元,设置在对输入信号执行预定处理的处理路径中,该输入信号通过前馈和第二基线漂移校正单元校正基线漂移,该第一基线漂移校正单元设置在第一基线之前 漂移单元,其通过反馈控制校正基线漂移。 第一个基线漂移校正单元导出基线漂移的量。 此外,它计算与导出的基线漂移量的平均值相对应的值,并且精细地调整基线的校正量。 然后通过使用精细调整的基线量来校正基线漂移。 第二基线漂移校正单元计算与基线漂移导出单元导出的基线漂移量的平均值对应的值,并且粗略地调整基线的校正量,并且使用粗调基线量来校正基线漂移 。 通过第一基线漂移校正单元的精细校正和由第二基线校正单元的粗略校正确保了基线漂移的有效校正。
    • 8. 发明授权
    • Method and apparatus for calibrating video camera
    • 校准摄像机的方法和装置
    • US08436904B2
    • 2013-05-07
    • US12757211
    • 2010-04-09
    • Kai LiJing WangYuan LiuPing Fang
    • Kai LiJing WangYuan LiuPing Fang
    • H04N13/02H04N17/00
    • G06T7/80G06T2207/30208
    • A method for calibrating the video camera includes: obtaining the internal and external parameters of the video camera according to a reference template; recording data of a reference object in the scene; obtaining images of the reference object from at least two perspectives; and obtaining the internal and external parameters of the video camera according to the recorded data of the reference object. An apparatus for calibrating the video camera includes: a preliminary calibration unit, configured to obtain the internal and external parameters of the video camera according to a reference template, and record the data of a reference object in the scene; a recalibration unit, configured to obtain images of the reference object from at least two perspectives, and obtain the internal and external parameters of the video camera according to the recorded data of the reference object. The invention is applicable to various scenes and features simple operations.
    • 用于校准摄像机的方法包括:根据参考模板获得摄像机的内部和外部参数; 在场景中记录参考对象的数据; 从至少两个角度获取参考对象的图像; 以及根据参考对象的记录数据获得摄像机的内部和外部参数。 用于校准摄像机的装置包括:初步校准单元,被配置为根据参考模板获得摄像机的内部和外部参数,并将参考对象的数据记录在场景中; 重新校正单元,被配置为从至少两个角度获得参考对象的图像,并且根据参考对象的记录数据获得摄像机的内部和外部参数。 本发明适用于各种场景和功能简单的操作。
    • 9. 发明授权
    • Image stitching method and apparatus
    • 图像拼接方法和装置
    • US08345961B2
    • 2013-01-01
    • US13045281
    • 2011-03-10
    • Kai LiYuan Liu
    • Kai LiYuan Liu
    • G06K9/00
    • G06T7/593G06K2009/2045G06T7/33
    • The present invention relates to an image processing technology, and discloses an image stitching method and apparatus to solve the problem of severe ghosting of an image stitched in the prior art. In the embodiments of the present invention, the overlap region of two images is found, a depth image of the overlap region is obtained, and the two images are stitched together according to the depth image. In the stitching process, the 3-dimensional information of the images is obtained by using the depth image to deghost the image. The method and apparatus under the present invention are applicable to multi-scene videoconferences and the occasions of making wide-view images or videos.
    • 本发明涉及一种图像处理技术,并且公开了一种图像拼接方法和装置,以解决现有技术中拼接图像的严重重影问题。 在本发明的实施例中,找到两个图像的重叠区域,获得重叠区域的深度图像,并且根据深度图像将两个图像拼接在一起。 在缝合处理中,通过使用深度图像来获得图像的三维信息,以消除图像的晕影。 本发明的方法和装置适用于多场景视频会议和制作广视图或视频的场合。