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申请号:201811410797.7 公开号:CN111220177A 主分类号:G01C25/00
摘要:【中文】本发明实施例公开一种星点像亚像元定位精度的验证方法。该验证方法包括确定地球自转360度的周期,待验证光学系统的焦距;将光学系统的主光轴对准赤纬为第一预设值的恒星进行积分,在预设时间间隔内进行多次观测并且在所述观测过程中所述光学系统保持静止不动;采用待验证的亚像元定位算法计算各个星点像的位置并采用距离公式计算相邻两个星像点之间的距离;求取第一次观测时所述恒星的入射光线与光线系统的主光轴的夹角;计算两次相邻观测时间点中地球转过的角度、视轴夹角,以及星像点在像面上的移动距离;计算所述待验证的亚像元定位算法的定位精度。该验证方法具有稳定性和高精度。 【EN】The embodiment of the invention discloses a method for verifying the positioning accuracy of star point image sub-pixels. The verification method comprises the steps of determining the period of the earth rotation by 360 degrees and the focal length of an optical system to be verified; aligning a main optical axis of an optical system to a fixed star with declination as a first preset value for integration, carrying out multiple times of observation within a preset time interval and keeping the optical system still in the observation process; calculating the position of each star point image by adopting a sub-pixel positioning algorithm to be verified, and calculating the distance between two adjacent star point images by adopting a distance formula; obtaining the included angle between the incident light of the fixed star and the main optical axis of the light system during the first observation; calculating the rotation angle of the earth, the included angle of the visual axis and the moving distance of the star image point on the image surface in two adjacent observation time points; and calculating the positioning precision of the sub-pixel positioning algorithm to be verified. The verification method has stability and high precision.
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申请号:201811414432.1 公开号:CN111220070A 主分类号:G01B11/00
摘要:【中文】本发明实施例公开一种星点像弥散斑的获取方法。该获取方法包括在光学仪器的入瞳前放置一片具有预设折射率的平板玻璃,所述平板玻璃的大小与所述光学仪器的入瞳的大小一致;将所述平板玻璃通过支撑结构连接至电机上,所述电机旋转带动所述平板玻璃移入或移出所述光学仪器的光路;当所述平板玻璃移出所述光路时,所述光学仪器所拍摄的图像定义为星点光源的合焦图像;当所述平板玻璃移入所述光路时,所述光学仪器所拍摄的图像定义为星点光源的离焦弥散斑。该星点像弥散斑的获取方法采用平板玻璃作为离焦机构,相比离焦机构,具有减小系统体积、重量和设计复杂度的优点。 【EN】The embodiment of the invention discloses a method for acquiring scattered spots of a star point image. The method comprises the steps of placing a piece of flat glass with a preset refractive index in front of an entrance pupil of an optical instrument, wherein the size of the flat glass is consistent with that of the entrance pupil of the optical instrument; connecting the plate glass to a motor through a supporting structure, wherein the motor rotates to drive the plate glass to move into or out of a light path of the optical instrument; when the plate glass moves out of the light path, an image shot by the optical instrument is defined as a focused image of a star point light source; when the plate glass moves into the light path, the image shot by the optical instrument is defined as the defocused diffuse spot of the star point light source. According to the method for acquiring the scattered spots of the star images, the flat glass is used as the defocusing mechanism, and compared with the defocusing mechanism, the method has the advantages that the system size, the weight and the design complexity are reduced.
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申请号:201911316843.1 公开号:CN111008301A 主分类号:G06F16/71
申请人:【中文】新华智云科技有限公司【EN】XINHUA ZHIYUN TECHNOLOGY Co.,Ltd. 申请日:2019.12.19 公开日:2020.04.14
摘要:【中文】本发明涉及视频搜素技术领域,具体地说,涉及一种以图搜视频的方法。包括创建数据索引阶段和搜索视频阶段,创建数据索引阶段包如下步骤:读取视频帧图片;计算图片帧的数字指纹;将指纹按16位为一段位分成多段;循环遍历所有分段,将指纹放入分段对应的索引目录下;指纹数据追加到索引文件中;搜索视频阶段包括如下步骤:读取待搜索视频截图数据;计算截图指纹;循环获得不同指纹分段下数据索引;通过数据索引搜索到指纹;通过搜索到的指纹获得视频信息以及对应的帧。该以图搜视频的方法中,通过帧图像指纹的分段,来有效缩小搜索范围,提升搜索速度,同时通过多节点的分布式处理的方式,快速定位到最终结果。 【EN】The invention relates to the technical field of video searching, in particular to a method for searching videos by pictures. The method comprises a data index creating stage and a video searching stage, wherein the data index creating stage comprises the following steps: reading a video frame picture; calculating the digital fingerprint of the picture frame; dividing the fingerprint into a plurality of sections according to 16 bits as a section; circularly traversing all the segments, and placing the fingerprints into index directories corresponding to the segments; the fingerprint data is added to the index file; the video searching stage comprises the following steps: reading video screenshot data to be searched; calculating screenshot fingerprints; circularly obtaining data indexes under different fingerprint segments; searching the fingerprint through a data index; and obtaining video information and a corresponding frame through the searched fingerprint. In the method for searching the video by the image, the searching range is effectively reduced through the segmentation of the frame image fingerprints, the searching speed is improved, and meanwhile, the final result is quickly positioned in a multi-node distributed processing mode.
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申请号:201811410799.6 公开号:CN111220178A 主分类号:G01C25/00
摘要:【中文】本发明实施例公开了一种遥感器光轴指向精度在轨矫正的方法。该方法包括根据必要条件公式计算,分析遥感器是否满足观测目标恒星的必要条件;通过调整调焦机构,使得像面处于预设焦面距离;在像面处于预设焦面距离后,采用带阈值的矩心法确定目标恒星的像点位置;根据所述目标恒星的像点位置,按照像偏移距离公式、方位距离公式、俯仰距离公式和偏移角公式分别计算获得目标恒星的实际成像点位置与观测仪焦点之间的距离、方位距离、俯仰距离和偏移角;将获得的偏移角作为遥感器当前光轴指向的固定误差,并根据所述固定误差修正遥感器的当前光轴指向位置。该方法能够在轨矫正光轴指向,从而有效地提高遥感器的光轴指向精度。 【EN】The embodiment of the invention discloses an on-orbit correction method for pointing accuracy of an optical axis of a remote sensor. The method comprises the steps of calculating according to a necessary condition formula, and analyzing whether a remote sensor meets the necessary condition for observing a target fixed star; adjusting a focusing mechanism to enable an image plane to be at a preset focal plane distance; after the image surface is at the preset focal plane distance, determining the image point position of the target fixed star by adopting a centroid method with a threshold; according to the image point position of the target fixed star, respectively calculating and obtaining the distance, the azimuth distance, the pitching distance and the offset angle between the actual imaging point position of the target fixed star and the focal point of the observation instrument according to an image offset distance formula, an azimuth distance formula, a pitching distance formula and an offset angle formula; and taking the obtained deviation angle as a fixed error of the pointing direction of the current optical axis of the remote sensor, and correcting the pointing position of the current optical axis of the remote sensor according to the fixed error. The method can correct the optical axis pointing on the track, thereby effectively improving the optical axis pointing accuracy of the remote sensor.
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申请号:201911341302.4 公开号:CN111029123A 主分类号:H01F41/00
摘要:【中文】本发明公开了一种电流互感器生产工艺,属于压器制作的技术领域,其技术方案要点是S5:线圈灌封:S51:灌封料的选取与配制;S52:端封料的选取与配制;S53:灌封:安装外壳的壳口竖直向上设置,通过封料填充装置先将端封料涂抹于安装外壳背向安装外壳壳口的侧壁上,待封料固化后将灌封料灌入安装外壳中,先将灌封料灌至安装外壳的一半高度,当灌封料固化后再将安装外壳填充灌满直至与塑料外壳的开口齐平,具有提高电流互感器的质量的优点;还公开了一种用于上述电流互感器生产工艺及的生产设备,具有提高绝缘环氧灌封料和环氧密封粘接剂的搅拌混合效果,提高灌封料对于安装外壳的灌封效果。 【EN】The invention discloses a production process of a current transformer, belonging to the technical field of manufacture of transformers, and the technical scheme is that S5: coil potting: s51: selecting and preparing a potting material; s52: selecting and preparing an end sealing material; s53: encapsulating: the shell opening of the installation shell is vertically arranged upwards, end sealing materials are firstly coated on the side wall of the installation shell, which is opposite to the shell opening of the installation shell, through a sealing material filling device, the potting materials are filled into the installation shell after the sealing materials are solidified, the potting materials are firstly filled to the half height of the installation shell, and the installation shell is filled with the potting materials after the potting materials are solidified until the potting materials are flush with the opening of the plastic shell, so that the current transformer has the advantage of improving the quality; the production equipment for the production process of the current transformer has the advantages of improving the stirring and mixing effects of the insulating epoxy potting material and the epoxy sealing adhesive and improving the potting effect of the potting material on the installation shell.
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申请号:201911346702.4 公开号:CN111013684A 主分类号:B01L9/00
摘要:【中文】本发明公开了一种多功能可调节夹具装置。所述夹具装置包括支撑机构、角度调节机构、导轨机构和夹具机构,所述导轨机构通过所述角度调节机构与所述支撑机构相连,所述夹具机构设置于所述导轨机构上,所述角度调节机构可使所述导轨机构倾斜。本发明可自由调节夹具角度、或者夹具纵向横向间距、或者夹具类型,实现多种场景和功能应用,便于推广使用。 【EN】The invention discloses a multifunctional adjustable clamp device. The clamp device comprises a supporting mechanism, an angle adjusting mechanism, a guide rail mechanism and a clamp mechanism, wherein the guide rail mechanism is connected with the supporting mechanism through the angle adjusting mechanism, the clamp mechanism is arranged on the guide rail mechanism, and the angle adjusting mechanism can enable the guide rail mechanism to incline. The invention can freely adjust the angle of the clamp, or the longitudinal and transverse distance of the clamp, or the type of the clamp, realize various scenes and functional applications, and is convenient for popularization and use.
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申请号:201910941364.2 公开号:CN111016907A 主分类号:B60W30/20
摘要:【中文】本发明揭示了一种混合动力汽车、控制方法、计算机设备及可读存储介质,在第一驱动系统降低功率的过程中,将其分隔多个调整阶段,保障在每个阶段内第二驱动系统均根据车速的变化调整第二功率,使得每个阶段内车速尽量保持一致,从而使汽车的运行维持稳定,通过多个调整阶段重复上述步骤,使第一功率最终调整至需求值时,调整的整个过程车速均保持一致,调整的过程趋近于平滑,一方面不需要功率调整后再人为调整车速,另一方面车速调整的过程顺畅,减少了车辆的抖动,提高了驾驶体验,提高了驾驶的安全性。 【EN】The invention discloses a hybrid electric vehicle, a control method, computer equipment and a readable storage medium, wherein a first driving system is divided into a plurality of adjusting stages in the process of reducing power, a second driving system in each stage is ensured to adjust second power according to the change of vehicle speed, and the vehicle speed in each stage is kept consistent as much as possible, so that the running of the vehicle is kept stable.
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申请号:201910941361.9 公开号:CN110979299A 主分类号:B60W10/06
摘要:【中文】本发明揭示了一种油电混合动力汽车、控制方法、计算机设备及可读存储介质,通过检测环境噪音值,得出车辆当前所在位置自身发出的噪音以及环境噪音叠加后的总噪音,比较总噪音是否符合预设噪音限定值的要求,当不符合要求时,调整油驱系统的内燃机的转速,减小车辆发出的噪音,使车辆的运行始终符合预设噪音限定值的要求,且内燃机降低转速以减小噪音时,电驱系统增大一定的功率,以维持车辆的正常行驶。 【EN】The invention discloses an oil-electricity hybrid electric vehicle, a control method, computer equipment and a readable storage medium, wherein the noise emitted by the current position of the vehicle and the total noise after the environmental noise is superposed are obtained by detecting the value of the environmental noise, whether the total noise meets the requirement of a preset noise limit value or not is compared, when the total noise does not meet the requirement, the rotating speed of an internal combustion engine of an oil drive system is adjusted, the noise emitted by the vehicle is reduced, the running of the vehicle always meets the requirement of the preset noise limit value, and when the rotating speed of the internal combustion engine is reduced so as to reduce the noise, the electric drive system increases certain power so as to maintain the normal running of the vehicle.
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申请号:201911219995.X 公开号:CN111046141A 主分类号:G06F16/33
申请人:【中文】新华智云科技有限公司【EN】XINHUA ZHIYUN TECHNOLOGY Co.,Ltd. 申请日:2019.12.03 公开日:2020.04.21
摘要:【中文】本发明披露了一种基于历史时间特征的文本库关键词精炼方法,包括:步骤1,预设历史时间段和当日时间;步骤2,提取一段时间内每篇文本的关键词并给每个关键词计算一个权重;步骤3,通过权重系数对筛选后的关键词进行权重处理,并存储得到历史候选关键词表;步骤4,利用历史候选关键词表的每个关键词在历史时间段内的频次波动情况对当日时间关键词权重进行调整。本发明引入了时间维度的特征,能够从海量关键词中高效地过滤泛词从而筛选出最能够代表文本库主旨内容的关键词。 【EN】The invention discloses a text base keyword refining method based on historical time characteristics, which comprises the following steps: step 1, presetting a historical time period and a current day time; step 2, extracting keywords of each text within a period of time and calculating a weight for each keyword; step 3, carrying out weight processing on the screened keywords through weight coefficients, and storing to obtain a historical candidate keyword list; and 4, adjusting the weight of the keywords at the time of the day by using the frequent fluctuation condition of each keyword of the historical candidate keyword list in the historical time period. The method introduces the characteristic of time dimension, and can efficiently filter the pan-word from a large number of keywords so as to screen out the keywords which can represent the main content of the text library most.
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申请号:202010015705.6 公开号:CN111150168A 主分类号:A43B3/00
摘要:【中文】本发明公开了一种新型防穿刺皮鞋及其制造方法,该皮鞋包括鞋面与鞋底,其特征在于,所述鞋面内部前端鞋头部位处嵌设有与鞋头形状相吻合的钢头,所述鞋底包括鞋内底与鞋外底,所述鞋内底从上至下为纤维织物层、耐温粘结纤维层和涤纶层,该三层结构粘接为一体;本发明一种新型防穿刺皮鞋的制造方法,步骤包括鞋面制作,鞋底制作,包边缝制而成,本发明一种新型防穿刺皮鞋由纤维织物、耐温粘结纤维、涤纶通过胶粘接贴合构成防穿刺的鞋内底,摒弃了传统的采用整块钢板的模式,因而工作鞋整体的重量减轻,穿戴更加舒适,将皮鞋与防穿刺工作鞋的优点相结合,提高了鞋子的柔软度和舒适度,使皮鞋具备了防穿刺的功能。 【EN】The invention discloses a novel puncture-proof leather shoe and a manufacturing method thereof, wherein the leather shoe comprises a vamp and a sole, and is characterized in that a steel head matched with the shape of the toe cap is embedded at the toe cap part at the front end inside the vamp, the sole comprises an insole and an outsole, the insole is a fiber fabric layer, a temperature-resistant bonding fiber layer and a polyester layer from top to bottom, and the three-layer structure is bonded into a whole; the invention relates to a method for manufacturing a novel anti-puncture leather shoe, which comprises the steps of vamp manufacturing, sole manufacturing and edge-covering sewing.
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