baber/WOPTO huggingface dataset:
Patent WO-2022027880-A1 (WO)
Title: Electric anastomat
Inventor: YAO DAQIANG
IPC: A61B17/072
Filed: 2020-11-30
Abstract: An electric anastomat, comprising a trigger button (1), an adjusting assembly (4), an elastic member (5), a force sensor (11) and a controller. The controller is respectively connected to the force sensor (11) and the adjusting assembly (4), and the elastic member (5) is abutted between the trigger button (1) and the adjusting assembly (4). The force sensor (11) is used for sensing the current acting force of a cartridge assembly (3). When the force sensor (11) sends a signal to the controller, the controller controls the adjusting assembly (4) to slide along the trigger button (1) to enable the adjusting assembly (4) to stretch or compress the elastic member (5), so that the elastic force of the elastic member (5) is adjusted till the elastic force matches the current acting force. Therefore, real-time adjustment of the triggering strength for the trigger button (1) in accordance with the acting force of the cartridge assembly (3) is achieved, facilitating the improvement of operating precision of the cartridge assembly (3); and operation safety thus is improved.
Patent WO-2022140886-A1 (WO)
Inventor: PENG WEITING
IPC: G02F1/13357
Filed: 2020-12-28
Abstract: 一种发光基板及其制备方法、发光模组、显示模组。发光基板包括：衬底，位于所述衬底一侧的驱动电路层、位于所述驱动电路层远离所述衬底的一侧的至少一个发光元件以及设置在所述发光元件远离衬底的一侧的第一反射层；所述驱动电路层包括多条交叉设置的第一走线和第二走线，所述第一走线与所述第二走线形成至少一个透光区。
Patent WO-2021139639-A1 (WO)
Title: Acoustic wave testing device for shallow water flow
Inventor: WANG HUANHUAN
IPC: G01N29/22
Filed: 2021-01-05
Abstract: An acoustic wave testing device for a shallow water flow comprises: a reactor (1) provided with a testing chamber (2), wherein a side surface of the reactor extending in a length direction is capable of applying a confining pressure to the testing chamber (2); an acoustic wave testing component provided within the testing chamber (2) and comprising a transmission member (3) and a receiving member (4), wherein a line connecting the transmission member (3) and the receiving member is perpendicular to the length direction; a temperature and pressure testing component (5) provided within the testing chamber (2); a pushing force component (6) provided at an end of the reactor (1) extending in the length direction, at least a portion of the pushing force component (6) extending into the testing chamber (2); a liquid injection component (7) communicated with the testing chamber (2); and a control portion (8) electrically connected to the transmission member (3), the receiving member (4), the temperature and pressure testing component (5), the pushing force component (6), and the liquid injection component (7), and used to acquire acoustic wave information transmitted by the transmission member (3), acoustic wave information received by the receiving member (4), and pressure and temperature information acquired by the temperature and pressure testing component (5). The acoustic wave testing device for a shallow water flow is capable of testing acoustic responses of a shallow water flow under different pressure changes, and facilitates studying an impact pattern of the shallow water flow on acoustic features.
Patent WO-2021139810-A1 (WO)
Title: Recombinant viruses expressing alpha-1, 3-galactosyltransferase and uses thereof
Inventor: POON LIT MAN
IPC: C12N7/01
Filed: 2021-01-11
Abstract: Disclosed are viruses, and vaccines comprised of and made from such viruses, that include a heterologous nucleic acid segment encoding α-1, 3-galactosyltransferase (α-1, 3-GT) such that the nucleic acid segment expresses α-1, 3-GT when the virus infects a host cell. Such viruses produce proteins having α-1, 3-galactose. The presence of α-1, 3-galactose on proteins of infected cells can powerfully stimulate the immune response of the host against the viral proteins of the virus, thus enhancing the effect of the virus as a vaccine. Also disclosed are vaccines that include and/or are produced by such viruses. Also disclosed are methods of making and using such viruses and vaccines, such as administering to a subject in need thereof a vaccine as disclosed and such as making a vaccine that includes one or more viral proteins expressed by a virus as disclosed.
Patent WO-2021147930-A1 (WO)
Inventor: CHEN DANIAN
IPC: H04L12/58
Filed: 2021-01-21
Abstract: 本申请的目的是提供一种拼接消息的方法与设备，该方法包括：响应于应用中关于第一会话消息的拼接触发操作，从所述第一会话消息所属的目标会话中确定与所述第一会话消息相关联的一个或多个第二会话消息；通过对所述第一会话消息与所述一个或多个第二会话消息执行拼接操作，生成所述第一会话消息对应的联合会话消息，并在所述应用的应用窗口中呈现所述联合会话消息。本申请能够极大地减少用户操作，为用户提供了极大的便利，能够极大地提高用户体验。
Patent WO-2022170654-A1 (WO)
Title: 一种适用于动态分布式物联网系统的数据加密学习方法
Inventor: YU DONGXIAO
IPC: G16Y40/50
Filed: 2021-03-10
Abstract: 本发明公开了一种适用于动态分布式物联网系统的数据加密学习方法，包括以下步骤：初始化物联网络相关的全局参数；梯度计算过程；加噪处理过程；边缘物联设备间信息传递过程；计算权重矩阵过程；参数更新过程。本发明首次将数据加密方法用于动态分布式物联网系统，该方法可以在去中心化的动态网络模型下，每个边缘物联设备单独训练数据实现学习算法最终的收敛，并且每个边缘物联设备所存储的训练集会有差异，同时通过拉普拉斯加噪阶段在一定程度上保证网络中每个边缘物联设备的本地数据的安全。
Patent WO-2021223523-A1 (WO)
Title: Robot for detecting and cleaning insulator, and control method therefor
Inventor: ZHENG JUN
IPC: B08B1/04
Filed: 2021-03-19
Abstract: Disclosed are a robot for detecting and cleaning an insulator, and a control method therefor. The robot comprises a cruising device, a cleaning device and a detection device, wherein the cleaning device is arranged on an upper side of the cruising device, the detection device is connected to the cleaning device, the cruising device is used for the automatic navigation and inspection of the robot to complete fixed-point positioning work of the cleaning device and the detection device, the cleaning device is used for cleaning an insulator (100), and the detection device is used for detecting a resistance value of the insulator (100). In the control method, a control center establishes a data connection with a cruising device, a cleaning device and a detection device, and automatic navigation and inspection of a robot are achieved, such that the degree of automation of the robot is increased; the cleaning device moves in a longitudinal direction and a transverse direction, while a cleaning brush head performs an encircling cleaning action around an insulator column, such that the cleaning efficiency and quality are improved; and resistance detection is carried out by means of the detection device before and after cleaning the insulator, and thus, the safety and reliability are improved.
Patent WO-2022041709-A1 (WO)
Inventor: CHEN JIANWU
IPC: G06F3/041
Filed: 2021-03-23
Abstract: A touch screen (20) and an input device (1) having said touch screen (20). The input device (1) comprises an active pen (10), a touch screen (20) and a touch chip (30). The touch screen (20) comprises a driving layer (22) and a sensing layer (21), wherein the driving layer (22) comprises a plurality of driving channels (220), the sensing layer (21) comprises a plurality of sensing channels (210), the sensing channels (210) and the driving channels (220) are provided in an intersecting manner, branches (2100) are provided on sides of each sensing channel (210), and the branches (2100) on two adjacent sensing channels (210) are arranged alternately. The touch screen (20) is provided with branches (2100) on the sensing channels (210), reducing the size of a blind area between electrode structures of the touch screen (20), increasing the amount of change in touch sensing generated by coupling the electrodes (102, 103) of the active pen (10) and the electrodes of the touch screen, improving the accuracy of recognition of the inclination angle of the active pen (10), and thus improving the touch accuracy and linearity of the active pen (10).
Patent WO-2022088596-A1 (WO)
Inventor: ZHANG XIANGCHAO
IPC: G01B11/25
Filed: 2021-03-24
Abstract: An apparatus and method for achieving simultaneous focusing of a screen and a workpiece in deflection measurement, relating to the field of precision manufacturing. The apparatus comprises a camera (1), a screen (2), a measured workpiece (3), and a focusing mirror (4); the focusing mirror (4) is a concave reflecting mirror, and the focusing mirror (4) is used for imaging the screen (2) at the measured workpiece (3); the positions of the camera (1), the measured workpiece (3), the focusing mirror (4) and the screen (2) are suitable so that a second image (image 2) of the screen (2) reflected on the measured workpiece (3) by the focusing mirror (4) can be reflected again by the measured workpiece (3) into a first image (image 1), and the first image (image 1) coincides with the measured workpiece (3) so that the camera (1) simultaneously focuses on the screen (2) and the measured workpiece (3). The apparatus is simple in structure and easy to use, so that the problem of angle-position uncertainty in deflection measurement can be overcome and a phase resolution error caused by out-of-focus of a screen can be reduced, and thus the measurement accuracy of a complex optical curved surface by the phase measuring deflectometry is significantly improved.
Patent WO-2022141918-A1 (WO)
Inventor: LU PUFEI
IPC: G09F9/33
Filed: 2021-04-02
Abstract: 本申请公开一种显示屏和终端设备，该显示屏包括具有相对的两面的显示层（1）、与显示层（1）的其中一面相对设置的光源层组（2），以及与显示层（1）的另一面相对设置的防眩光层组（3）；防眩光层组（3）具有第一防眩光结构，第一防眩光结构能够覆盖显示层(1)的背对光源层组(2)的一面；光源层组(2)具有第二防眩光结构，第二防眩光结构能够覆盖显示层(1)的与光源层组(2)相对的一面。
Patent WO-2021204262-A1 (WO)
Title: Pure electric available power determination method and system, and vehicle
Inventor: WU MAIQING
IPC: B60L15/20
Filed: 2021-04-09
Abstract: A pure electric available power determination method and system, and a vehicle. The method and system are applied to a vehicle comprising a fuel cell. The vehicle further comprises a battery pack and a motor, and both the fuel cell and the battery pack are electrically connected to the motor. The method comprises: monitoring the current traveling state of the vehicle and the current start-stop state of the fuel cell; obtaining the maximum peak power outputted by the motor, the maximum output power of the battery pack, and the startup power of the fuel cell; and determining pure electric available power according to the current traveling state, the current start-stop state of the fuel cell, the maximum peak power, the maximum output power, and the startup power. The method and system can quickly determine the pure electric available power without complex logic operations, and also take into account the working states of the vehicle, the fuel cell system, the motor, and the battery pack, so that the determined pure electric available power is closer to the actual available power.
Patent WO-2021213241-A1 (WO)
Title: 目标检测方法及装置、电子设备、存储介质及程序
Inventor: ZHOU HUI
IPC: G06T7/00
Filed: 2021-04-15
Abstract: 本公开涉及一种目标检测方法及装置、电子设备、存储介质及程序。其中，该方法的一个示例包括：获取点云信息，所述点云信息至少包括目标对象及待检测对象对应的点云信息，所述待检测对象为所述目标对象周围人或物；根据所述点云信息，得到网格信息，所述网格信息至少包括指示所述待检测对象的障碍点信息；根据所述网格信息，识别出所述待检测对象中对所述目标对象的移动造成影响的障碍物。
Patent WO-2021244156-A1 (WO)
Inventor: HUANG XIAOSHAN
IPC: H02N2/00
Filed: 2021-04-16
Abstract: Disclosed in embodiments of the present invention is a leveling device. In the present invention, the leveling device comprises: a base; a housing which is cylindrical and connected to the base, and an accommodation area being formed between the housing and the base; an end cover arranged opposite to the base and provided on the side of the housing facing away from the base; a flexible hinge provided in the accommodation area, clamped between the base and the end cover, and configured to be elastically deformed between the base and the end cover; and at least three ceramic stacks provided in the accommodation area and clamped between the base and the end cover, each ceramic stack being configured to be deformed in the axial direction of the end cover after being powered on; wherein at least three of the ceramic stacks are arranged in the circumferential direction of the end cover; the housing is used for limiting the end cover to move in a preset range in the axial direction thereof, and is further used for limiting the end cover to move in a preset range in the radial direction thereof. Compared with the prior art, the leveling device can meet the requirements of bearing a high load and a large tangential force.
Patent WO-2022160477-A1 (WO)
Title: 防盗夹紧装置
Inventor: FAN PETER
IPC: G08B13/12
Filed: 2021-04-20
Abstract: 一种防盗夹紧装置，包括第一夹持件（1）、第二夹持件（2）及报警线（3），其中第一夹持件（1）和第二夹持件（2）均设置有安装部和夹持部，两夹持部之间夹持有被夹持体，两安装部之间设置有用于调节被夹持体夹持力的调节件；报警线（3）一端的导线形成回路后设置于两个安装部之间。
Patent WO-2021223647-A1 (WO)
Inventor: HUANG JIAN-DONG
IPC: A61K39/125
Filed: 2021-04-28
Abstract: L'invention concerne des polypeptides antigéniques comprenant un fragment de protéine de spicule (S) du SARS-CoV-2. Typiquement, le fragment comprend un ou plusieurs sites immunodominants (ID) de la protéine S, mais est inférieur à la pleine longueur de la protéine S. Le site ID peut être un site d'identification linéaire. Le fragment comprend un épitope de lymphocyte B, un épitope de lymphocyte T, ou une combinaison de ceux-ci. Le polypeptide antigénique comprend un, deux ou trois sites d'identification. L'invention concerne également des antigènes constitués du polypeptide antigénique ou comprenant en outre une molécule hétérologue fusionnée ou conjuguée à celui-ci. L'antigène comprend une protéine porteuse. L'invention concerne également des compositions immunogènes comprenant un ou plusieurs antigènes seuls ou en combinaison avec un adjuvant, et des procédés d'utilisation de ceux-ci pour, par exemple, traiter et/ou prévenir des infections par le SARS-CoV-2 et des maladies associées à celles-ci telles que COVID-19.
Patent WO-2022110641-A1 (WO)
Inventor: CHEN TINGAI
IPC: G02B13/18
Filed: 2021-04-29
Abstract: 一种广角镜头及终端设备。该广角镜头可以应用于摄像头，或者，应用于手机、平板电脑或摄像机等终端设备。该广角镜头从物侧至像侧的光轴方向依次包括：具有负屈折力的第一透镜组，第一透镜组包括至少一个透镜；具有正屈折力的第二透镜组，第二透镜组沿光轴的方向依次包括第一透镜、可变光圈结构和第二透镜，第一透镜朝向物侧的面为凸面，第二透镜朝向像侧的面为凸面，可变光圈结构用于改变进入广角镜头的光量；具有屈折力的第三透镜组，第三透镜组包括至少三个透镜，紧邻像侧的透镜包括至少一个反曲点；广角镜头满足：0.5≤f2/f≤2，f2为第二透镜组的焦距，f为广角镜头的焦距。如此，既可以实现广角成像，又可以调整光圈的孔径。
Patent WO-2021249071-A1 (WO)
Inventor: CAI XINYUE
IPC: G06K9/00
Filed: 2021-05-07
Abstract: Embodiments of the present application disclose a lane line detection method and a related apparatus, applicable to the field of artificial intelligence-based computer vision. The method comprises: fusing features extracted from different layers of a neural network to obtain a second feature map from the fusing, wherein the second feature map obtained from the fusing has features from multiple layers, including features related to lower-layer receptive fields, which facilitate accurate regression of lane lines, and features related to higher-layer receptive fields, which facilitate lane line detection; and grouping output predicted lane line sets, wherein predicted lane lines in each group have individual optimal prediction intervals due to restrictions of the receptive fields. The embodiments of the present application integrate lane lines by selecting an optimal prediction interval for each predicted lane line, and combine advantages of the different predicted lane lines to form a final predicted lane line output, thereby improving the accuracy of lane line detection.
Patent WO-2022105148-A1 (WO)
Inventor: XU ZHENWU
IPC: A46B7/08
Filed: 2021-05-10
Abstract: L'invention concerne une brosse à dents comprenant une tête (20), un manche (10), et une première structure rotative (30), la tête (20) présentant un axe de rotation (C1) s'étendant dans le sens de la longueur ; la première structure rotative (30) comprend une pièce rotative (31) reliée à la tête (20) et une pièce de liaison (32) reliée au manche (10), la surface de la pièce de liaison (32) faisant face à la tête (20) est pourvue d'une rainure d'insertion (321) s'étendant le long de l'axe de rotation (C1), et l'extrémité de la pièce rotative (31) opposée à la tête (20) est insérée dans la rainure d'insertion (321) et est reliée de manière rotative à la pièce de liaison (32) ; et la pièce rotative (31) est pourvue de premières pièces de serrage (311), la pièce de liaison (32) est pourvue de secondes pièces de serrage (322), il y a de multiples premières pièces de serrage (311) et/ou secondes pièces de serrage (322), et n'importe quelle première pièce de serrage (311) peut tourner conjointement avec la pièce rotative (31) pour passer à travers chaque deuxième pièce de serrage (322) en séquence et limiter la rotation de la pièce rotative (31) lorsqu'elle est opposée à une seconde pièce de serrage (322).
Patent WO-2021258884-A1 (WO)
Inventor: SHANG JIANXING
IPC: H01L27/146
Filed: 2021-05-12
Abstract: Provided are a detection substrate and a ray detector. The detection substrate comprises: a base substrate; and a plurality of detection pixels located on the base substrate, wherein at least one detection pixel serves as a detection marking pixel. The detection marking pixel comprises: a storage capacitor, a first electrode plate of the storage capacitor being coupled to a bias voltage end; a discharge circuit, the discharge circuit being configured to write a signal of the bias voltage end into a second electrode plate of the storage capacitor under the control of a first scanning signal end; and a reading circuit coupled to an external reading circuit, the reading circuit being configured to write the voltage of the second electrode plate of the storage capacitor into the external reading circuit and write a reference signal of the external reading circuit into the second electrode plate of the storage capacitor under the control of a second scanning signal end.
Patent WO-2021244314-A1 (WO)
Title: 钕铁硼磁体材料、原料组合物及其制备方法和应用
Inventor: WANG JINLEI
IPC: C22C38/04
Filed: 2021-05-21
Abstract: 本发明公开了一种钕铁硼磁体材料、原料组合物及其制备方法和应用。该钕铁硼磁体材料的原料组合物包括：LR，LR包括Nd；Ho，0～10mas％、且不为0；Gd，0～5mas％；Dy，0～3mas％；Tb，0～3mas％；且Gd、Dy和Tb不同时为0；C，0.12～0.45mas％；Cu，0.12～0.6mas％；Ga，0～0.42mas％，且不为0；Co，0～0.5mas％；Al，0～0.5mas％；X，0.05～0.45mas％；B，0.9～1.05mas％；余量为Fe；Dy和/或Tb，0.2～1mas％。该钕铁硼磁体材料晶界连续性好，具有高剩磁、高矫顽力、良好高温性能和良好的耐腐蚀性。
Patent WO-2021238875-A1 (WO)
Title: Colletotrichum transcription factor csatf1 and use thereof
Inventor: LIN CHUNHUA
IPC: A01N47/44
Filed: 2021-05-24
Abstract: Provided are a colletotrichum transcription factor CsATF1 and the use thereof. The gene contains two introns, codes 536 amino acids, contains three Aft1 domains and one BRLZ (a basic leucine zipper) domain, and is an ATF transcription factor in the bZIP transcription factor family. Experiments demonstrate that the transcription factor participates in regulating the sensitivity of fungi to pyrrole medicaments such as fludioxonil, thus indicating that CsATF1 can be used in the preparation of a bactericidal enhancer.
Patent WO-2022033130-A1 (WO)
Inventor: SHAO MENG
IPC: G06F16/16
Filed: 2021-06-01
Abstract: 一种JSON配置文件的编辑保存方法，对JSON配置文件的可编辑部分进行标记（S1）；根据标记，调取可编辑部分以供用户编辑生成用户编辑内容（S2）；根据标记，将用户编辑内容保存到JSON配置文件，以更新可编辑部分的对应内容（S3）。解决下载和保存整个JSON配置文件体积较大，文件内容复杂，保存性能和网络传输性能都有一定的缺陷的技术问题。达到降低用户保存JSON配置文件的体积和复杂度，提升保存效率、编辑效率以及网络传输性能的技术效果。
Patent WO-2022134502-A1 (WO)
Inventor: MA CHAO
IPC: G05B23/02
Filed: 2021-06-22
Abstract: 一种基于云平台的车辆远程诊断系统，通过与车辆诊断端口（2）连接的第一车联网设备（110）接入诊断云平台（120）请求远程诊断，同时，通过多个第二车联网设备（130）分别将多个诊断仪（3）接入诊断云平台（120），形成诊断资源池，第一车联网设备（110）和第二车联网设备（120）可以经诊断云平台完成接口的映射，实现商用车场景的镜像、实车环境的模拟，诊断云平台（120）可以根据远程诊断请求从诊断资源池中分配相应的诊断仪（3）进行诊断，维修方不需要购买不同型号或不同厂家的诊断设备，只需要购买物联网设备，大大降低了开展诊断业务的成本以及复杂程度，也可以得到更全面的诊断功能。
Patent WO-2022160578-A1 (WO)
Inventor: JIANG DI
IPC: G06F21/62
Filed: 2021-06-24
Abstract: La présente demande divulgue un procédé, un appareil et un dispositif de traitement de données basés sur une optimisation de noyau de transition d'état, ainsi qu'un support. Ledit procédé consiste à : lorsqu'un premier participant entraîne des paramètres de modèle local à chaque fois, déterminer de manière dynamique un algorithme d'échantillonnage d'état de données d'échantillon local prédéfinies en fonction d'informations d'attribut de ressource du premier participant, pour obtenir des informations d'état d'identification des données d'échantillon local prédéfinies, de façon à déterminer des informations d'état combinées de tous les paramètres de modèle local prédéfinis du premier participant ; déterminer, en fonction des informations d'état combinées, des paramètres de modèle cible à fédérer ; et effectuer un entraînement de fédération avec chaque second participant sur la base desdits paramètres de modèle cible, de façon à obtenir un modèle de prédiction prédéfini du premier participant.
Patent WO-2022002115-A1 (WO)
Title: Task pushing method and apparatus, and electronic device
Inventor: ZHANG YANAN
IPC: G06F9/451
Filed: 2021-06-30
Abstract: Embodiments of the present application provide a task pushing method and apparatus, and an electronic device. The method comprises: monitoring whether an external device is connected to a current device; when an external device is connected to the current device, determining whether there exists a device usage habit description corresponding to the external device; and when there exists the device usage habit description, generating a first task card display interface based on the device usage habit description, and displaying on the current device the first task card display interface or an interface used for entering into the first task card display interface. Compared with the prior art, a method of one embodiment of the present application greatly simplifies the use process of the external device, reduces the complexity when using the external device, and improves user experience.
Patent WO-2023272689-A1 (WO)
Inventor: HE SONGYAN
IPC: G09F9/30
Filed: 2021-07-01
Abstract: L'invention concerne un ensemble panneau d'affichage ultramince et son procédé de fabrication. L'ensemble panneau d'affichage ultramince comprend : un écran d'affichage (1) ; une plaque en acier-plastique (2) qui est utilisée pour supporter l'écran d'affichage (1) ; un adhésif en mousse (3) qui est utilisé pour relier l'écran d'affichage (1) et la plaque en acier-plastique (2) ; et un ensemble matériel (4, 5, 6). L'ensemble matériel (4, 5, 6) est fixé à la partie inférieure de la plaque en acier-plastique (2) ; la plaque en acier-plastique (2) est moulée de façon à former une bosse (21) et une structure de bridage et de taraudage (22) située sur la bosse (21) ; et un élément de fixation fixe l'ensemble matériel (4, 5, 6) au moyen de la structure de bridage et de taraudage (22). En retirant une plaque de support de matériel, un module de l'ensemble panneau d'affichage peut assembler et verrouiller l'ensemble matériel (4, 5, 6) requis par le module simplement au moyen de la plaque en acier-plastique (2), de telle sorte que le poids et le coût de l'ensemble panneau d'affichage sont réduits, et l'objectif d'amincissement est atteint.
Patent WO-2023283796-A1 (WO)
Inventor: TANG YONGFEI
IPC: F16M11/20
Filed: 2021-07-13
Abstract: The present invention relates to the technical field of computer supports, and in particular, to a computer support arm the angle of which can be freely adjusted. The computer support arm the angle of which can be freely adjusted comprises a VESA plate assembly, a ball head assembly, and a seat assembly, which are characterized in that: one end of the ball head assembly is connected to the VESA plate assembly, the other end of the ball head assembly is connected by means of an upper connector to one end of a power arm, the other end of the power arm is connected by means of a first lower connector to one end of a diagonal arm, and the other end of the diagonal arm is connected by means of a second lower connector to the seat assembly. Compared with the existing technology, a computer support arm the angle of which can be freely adjusted is provided. The computer support arm can be adjusted to multiple angles and ranges, which solves the problem that existing computer displays have a small adjustment amplitude in spatial position and it is difficult to satisfy the usage experience of most people.