baber/WOPTO huggingface dataset:
Patent WO-2022151378-A1 (WO)
Inventor: CUI JIE
IPC: H04W74/00
Filed: 2021-01-15
Abstract: L'invention concerne un procédé pour un équipement utilisateur (UE) basé sur une communication associée à une nouvelle radio (NR) dans un spectre sans licence (NR-U). Le procédé comprend l'obtention d'informations comprenant une synchronisation de référence, l'établissement d'une configuration de mesure de données cibles en fonction de la synchronisation de référence ; et la réalisation d'une mesure de données cibles conformément à la configuration de mesure de données cibles.
Patent WO-2021160126-A1 (WO)
Title: Interplay between in-loop filtering and video slices
Inventor: ZHANG KAI
IPC: H04N19/70
Filed: 2021-02-09
Abstract: Methods, apparatus and systems for processing video are described. One example method includes performing a conversion between a video unit of a video and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a syntax element indicating whether an in-loop filtering operation is performed across slice boundaries is selectively included in the bitstream responsive to whether or how the video unit is partitioned into slices.
Patent WO-2021169879-A1 (WO)
Title: 可拉伸的显示面板及显示装置
Inventor: YANG QIAN
IPC: G09F9/30
Filed: 2021-02-20
Abstract: 一种可拉伸的显示面板，具有多个岛区和多个桥区，所述多个岛区阵列式布置，每相邻的两个岛区之间连接有桥区。所述显示面板包括多个子像素和多个信号线组。每个岛区内设置有至少一个子像素。多个信号线组位于同一导电层，每个信号线组沿所述桥区延伸至该桥区连接的岛区。所述信号线组包括多条并行且相间隔的信号线，每条信号线与所述岛区内的各子像素电连接。
Patent WO-2021169950-A1 (WO)
Inventor: FAN ZHENTAO
IPC: G02B27/00
Filed: 2021-02-23
Abstract: A method for designing a phase-type diffraction suppression optical component (12) for a transparent display screen (11). The method comprises: acquiring a light field complex amplitude distribution U(x 2 , y 2 , d)=A(x 2 , y 2 , d)exp(iφ 20 (x 2 , y 2 , d)) of a plane wave, which passes through the transparent display screen (11), on a plane at a distance d from the screen; and designing the diffraction suppression optical component (12) to enable the optical component to have a transmittance function t 2 (x 2 , y 2 )=exp(iφ 21 (x 2 , y 2  ) )and satisfy φ 20 (x 2 , y 2 , d)φ 21 (x 2 , y 2  )=C, C being a constant. The diffraction suppression optical component (12) and an under-screen camera apparatus (1) comprising same. The phase-type diffraction suppression optical component (12) suppresses the diffraction effect in the under-screen camera apparatus (1) by providing phase modulation, thereby improving the quality of under-screen imaging.
Patent WO-2022160455-A1 (WO)
Inventor: YANG LI
IPC: A61P29/00
Filed: 2021-03-30
Abstract: La présente invention relève du domaine des médicaments naturels, et concerne en particulier un composé pour la prévention et le traitement d'une inflammation. Le composé a une structure, telle que représentée dans les formules I-VIII, et appartient à un composé de 2-(2-phénéthyl) chromone. Une évaluation d'activité anti-inflammatoire est effectuée au moyen d'une RAW 264.7 induite par LPS pour générer du NO en tant que modèle, et le composé, tel que représenté dans les formules I-VIII, peut inhiber la génération de NO, qui reflète l'activité anti-inflammatoire. Par conséquent, le composé peut être utilisé pour préparer des aliments et/ou des médicaments pour prévenir, traiter et/ou soulager une inflammation.
Patent WO-2022205022-A1 (WO)
Inventor: QU BINGYU
IPC: H04L5/00
Filed: 2021-03-30
Abstract: 提供了传输参考信号的方法和装置，适用于无线通信领域。该方法可以包括：通过设计长度不同的校验序列用于区分原有端口和新增端口，在不增加时频资源的情况下，复用半正交或低互相关特征的DMRS端口，实现DMRS端口的扩容，且最大限度地降低了协议中原有端口和新增端口之间的干扰，保证信道估计的质量。提供的传输参考信号的方法和装置，满足了天线数目骤增时系统对端口数量的需求，提高了信息传输的灵活性和高效性。
Patent WO-2022205490-A1 (WO)
Inventor: YANG LUANXIA
IPC: H04B7/14
Filed: 2021-04-03
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a node may receive a first control channel associated with a multiple relay based communication. The node may identify a target node of a payload of the first control channel based at least in part on at least one of: information included in the payload, or an identifier associated with the first control channel. The node may transmit a second control channel carrying the payload toward the target node if the node is not the target node. The node may decode the payload, if the node is the target node. Numerous other aspects are described.
Patent WO-2021204231-A1 (WO)
Title: Information determination method and apparatus, device, and storage medium
Inventor: SHI JING
IPC: H04W72/04
Filed: 2021-04-09
Abstract: Provided in the present application are an information determination method and apparatus, a device, and a storage medium, wherein the information determination method comprises: determining a span pattern between multiple cells of a candidate information pair of a subcarrier spacing; and on the basis of the span pattern, determining a first value of each span, wherein the first value is an upper limit M_total of the number of physical downlink control channel candidate sets or an upper limit C_total of the number of non-overlapping control channel units of a subcarrier spacing, or an upper limit M_total of the number of physical downlink control channel candidate sets or an upper limit C_total of the number of non-overlapping control channel units of a candidate information pair of a subcarrier spacing, and the span pattern between multiple cells is span alignment or span misalignment.
Patent WO-2021218942-A1 (WO)
Inventor: LIANG XUEYU
IPC: H01L21/677
Filed: 2021-04-27
Abstract: Provided are a wafer processing device and a wafer transferring method capable of improving production speed and productivity. The wafer processing device comprises: a first machine; a second machine comprising a mechanical arm (104), the mechanical arm transferring a wafer to the machine by means of a communication port (201), and the communication port being provided between the first machine and the second machine; a door plate (200) arranged on the first machine and used for sealing the communication port; a detector (103) for detecting the current position of the door plate; a driver (105) connected to the door plate and used for driving the door plate to move so as to open the communication port or close the communication port; and a controller (102) connected to the detector, the driver and the mechanical arm and used for controlling the door plate to move according to the current position of the door plate detected by the detector so as to open or close the communication port, and controlling the mechanical arm to transfer the wafer.
Patent WO-2022105124-A1 (WO)
Inventor: FENG DECAI
IPC: C08K13/04
Filed: 2021-04-28
Abstract: 本发明公开了一种聚酰胺组合物及其制备方法和应用。所述聚酰胺组合物包括如下组分：脂肪族聚酰胺，半芳香族聚酰胺，扁平玻璃纤维，抗氧剂，成核剂，添加剂；其中脂肪族聚酰胺的酰胺键和端羧基中碳原子数量占脂肪族聚酰胺的总碳原子数量比例≤17％，半芳香族聚酰胺的酰胺键和端羧基中碳原子数量占半芳香族聚酰胺的总碳原子数量比例≤15％；扁平玻璃纤维具有扁形横截面，且横截面的长径与短径之比为2.2～4.5。本发明通过选择特定缩聚类型和酰胺键密度的聚酰胺以及特定形状的玻璃纤维，并控制聚酰胺、玻璃纤维的加入量，获得了具有高刚性和低翘曲的聚酰胺组合物，并且在高温高湿环境下，该聚酰胺组合物能够维持良好的刚性和翘曲性能。
Patent WO-2022183589-A1 (WO)
Inventor: LI XIAOKUN
IPC: A61M1/16
Filed: 2021-05-08
Abstract: A flow guide control device, comprising a catheter (1) and a control assembly (2), wherein the catheter (1) comprises a catheter wall (12), a channel (11) defined by the catheter wall (12), and a side hole (13) provided in the catheter wall (12); the control assembly (2) comprises a valve (21), an elastic member and a traction cable; a connection side of the valve (21) is connected to an edge of the side hole (13) by means of the elastic member; a movable side of the valve (21) is connected to the traction cable; when the traction cable is in a tightened state, the movable side of the valve (21) is deflected inward to the channel (11), so as to at least partially block the channel (11) and in turn increase the amount of fluid discharged via the side hole (13); and when the traction cable is in a relaxed state, the elastic member drives the movable side of the valve (21) to deflect towards the side hole (13), so as to at least partially block the side hole (13) and in turn increase the amount of fluid discharged via an outlet of the channel (11). The flow guide control device achieves the technical effect of adjusting a flow direction and a flow rate of fluid in the catheter (1), by means of controlling the opening and closing of the valve (21).
Patent WO-2022160500-A1 (WO)
Title: 一种细胞分析仪的细胞分析方法、装置和细胞分析仪
Inventor: YI YONG
IPC: G01N33/49
Filed: 2021-05-08
Abstract: 一种细胞分析仪的细胞分析方法，首先依据细胞分析仪检测血液样本时输出的电压信号获取电脉冲信号数据，并按检测的时间顺序依次获取电脉冲信号数据中每个脉冲信号的脉宽W n 。再对获取的每个脉冲信号的脉宽W n 进行补偿，并对补偿后的补偿脉宽W符合一预设值的脉冲信号进行计数。然后依据计数结果获取细胞分析仪的检测结果。由于对脉宽W n 进行补偿的补偿系数与细胞分析仪检测时驱动血液样本流动的电机的转速相关，使得依据电机转速不为定值时的检测数据，也可以输出正确的检测结果，进而提升项目的检测速度，提高单位时间内样本的检测数量，和提高细胞分析仪的产品性能。
Patent WO-2021228086-A1 (WO)
Title: Method and drug for treating spinal muscular atrophy
Inventor: LI JINAN
IPC: A61K38/46
Filed: 2021-05-11
Abstract: Disclosed in the present invention is a method for treating spinal muscular atrophy (SMA). The method comprises administering a therapeutically effective amount of a plasminogen pathway activator to a subject. Further disclosed in the present invention are a pharmaceutical composition, an article and a kit containing the plasminogen pathway activator and used for treating spinal muscular atrophy.
Patent WO-2022236692-A1 (WO)
Title: 信息处理及装置、通信设备及存储介质
Inventor: LI YANHUA
IPC: H04W68/12
Filed: 2021-05-11
Abstract: 一种信息处理方法及装置、通信设备及存储介质。由用户设备UE执行的信息处理方法包括：上报UE的辅助信息，其中，辅助信息至少用于确定寻呼UE的寻呼分组。
Patent WO-2021233200-A1 (WO)
Title: Method and apparatus for device-to-device communication
Inventor: FU ZHANG
IPC: H04W8/00
Filed: 2021-05-13
Abstract: Various embodiments of the present disclosure provide a method for direct device-to-device communication. The method which may be performed by a first device comprises generating an Internet protocol address of the first device. The Internet protocol address of the first device may be applicable for direct device-to-device communication between the first device and a second device via a third device. The method further comprises transmitting the Internet protocol address to the third device. According to various embodiments of the present disclosure, the relaying for direct device-to-device communication may be implemented efficiently and flexibly.
Patent WO-2021244287-A1 (WO)
Inventor: MANZER ALI DANISH
IPC: G06F17/40
Filed: 2021-05-19
Abstract: The disclosure provides methods and system for instant sharing of media. The method creates a group of at least two users for instant sharing of the media. Next, the method captures the media based on an input of one of the at least two users of the group. Next, the method analyses the media using Face Recognition techniques. The Face Recognition technique facilitates in detecting the number of faces present in the media. Next, the method shares the media with other users of the group based on the number of faces detected in the media. The media is instantly shared with other users of the group using one or more data sharing mechanism.
Patent WO-2022246672-A1 (WO)
Inventor: YANG ZIWANG
IPC: G06F3/044
Filed: 2021-05-26
Abstract: 本发明公开一种电容触控组件、电容屏及触控设备，电容触控组件包括载体基板和设置于载体基板上的多条第一电极和多条第二电极，第一电极包括多个依次连接的第一电极块，第二电极包括多个依次连接的第二电极块，第一电极块的内部被挖空，形成第一挖空区域，然后在与挖空的第一电极块耦合的第二电极块上设置第一延伸电极，该第一延伸电极与第二电极块连接，且第一延伸电极在载体基板上的垂直投影，位于第一挖空区域在载体基板上的垂直投影范围内，使得第一延伸电极与被挖空的电极块之间形成新的电场，增加了整体的电场分布，使电场分布的更加均匀，进而提高了触控灵敏度，提高了书写线性度。
Patent WO-2022068228-A1 (WO)
Title: Lesion mark verification method and apparatus, and computer device and storage medium
Inventor: ZHENG QIUFANG
IPC: G06T7/00
Filed: 2021-05-27
Abstract: A lesion mark verification method and apparatus, and a computer device and a storage medium. The method comprises: receiving medical image data, in which lesion marks have been added, from a user terminal, and obtaining two lesion marks of any image in the medical image data as mark information to be verified (S110); determining whether type information of the two lesion marks in said mark information is the same (S120); if the type information of the two lesion marks is the same, determining whether marking curves in the two lesion marks are closed curves, so as to obtain curve type determination results (S130); if the marking curves in the two lesion marks both are non-closed curves, determining, according to a preset curve determination rule, whether the two marking curves are similar, so as to obtain a result of verifying whether said mark information is consistent, the curve determination rule being a determination rule based on a dynamic time warping algorithm (S140); if the marking curves in the two lesion marks both are closed curves, determining, according to a preset overlap ratio determination rule, whether closed areas corresponding to the two marking curves overlap, so as to obtain a result of verifying whether said mark information is consistent (S150); and if the marking curves in the two lesion marks are respectively a closed curve and a non-closed curve, determining, according to a preset proportion threshold, whether pixels corresponding to the two marking curves overlap, so as to obtain a result of verifying whether said mark information is consistent (S160). The present method is based on an intelligent decision-making technology, relates to the field of artificial intelligence, can verify the consistency of the lesion marks by using a unified standard, and can greatly improve the verification efficiency and quality of the lesion marks.
Patent WO-2021249383-A1 (WO)
Inventor: XIE FANG
IPC: H04W4/06
Filed: 2021-06-08
Abstract: L'invention concerne un procédé et un dispositif de commutation de services de diffusion et de multidiffusion (MBS). Le procédé comprend les étapes suivantes : une station de base source obtient les informations de support d'au moins une station de base cible candidate pour un premier service MBS, le premier service MBS étant un service MBS effectué par un terminal à commuter ou intéressant celui-ci ; et la station de base source sélectionne une station de base cible commutée par le terminal à commuter.
Patent WO-2022110789-A1 (WO)
Title: Entry recommendation method and apparatus, and apparatus for recommending entries
Inventor: LI XIN
IPC: G06F16/33
Filed: 2021-06-24
Abstract: An entry recommendation method and apparatus, and an apparatus for recommending entries. The method comprises: recalling a plurality of word lists on the basis of a multi-path recall policy, wherein entries in each word list have original scores; for each word list, respectively performing normalization processing on the original scores so as to obtain target scores of the entries in each word list, and respectively determining the weights of the entries in each word list; and on the basis of the target scores and the weights, selecting a target entry from the plurality of word lists, and pushing the target entry to a target client. By the means of the method, entries recommended to a user can satisfy input requirements of the user to a greater extent, and the accuracy of the entries recommended to the user is improved.
Patent WO-2022028532-A1 (WO)
Inventor: LIU SIQI
IPC: H04W76/14
Filed: 2021-08-05
Abstract: 本申请公开了一种信息确定方法、装置及终端。具体实现方案包括：终端获取目标配置下的第一资源，基于所述第一资源，执行第一操作；所述第一操作包括以下至少一项：进行目标监测、确定目标量；所述目标配置包括：活动时间和/或非活动时间。
Patent WO-2023015437-A1 (WO)
Title: Electrochemical apparatus and electronic apparatus
Inventor: JIANG BING
IPC: H01M10/0525
Filed: 2021-08-10
Abstract: The present application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises a first pole piece, a second pole piece which is electrically different from the first pole piece, and a separation film disposed between the first pole piece and the second pole piece. The first pole piece comprises a current collector, a tab, and an active layer. The tab is electrically connected to the current collector and extends out from the current collector. The active layer is disposed on a surface of the current collector, and the active layer comprises a first active layer and a second active layer. Along a first direction, the first active layer is located at a side of the second active layer facing the tab, and is adjacent to or partially overlapping with the second active layer. Along a second direction, the first active layer and the second active layer extend in a strip shape. A cohesion of the first active layer is greater than that of the second active layer. By making the cohesion of the first active layer greater than that of the second active layer, the first pole piece is less prone to powder falling from the edge.
Patent WO-2023284059-A1 (WO)
Inventor: ZOU JUN
IPC: C07D401/04
Filed: 2021-08-16
Abstract: A preparation method for synthesizing S-nicotine from glutaric acid ester: nicotinic acid ester and glutaric acid ester are used to react under the action of a basic catalyst to obtain 5-carbonyl-5-(pyridin-3-yl)valeric acid; then, 5-carbonyl-5-(pyridin-3-yl)valeric acid is subject to a reaction with an amination reagent to obtain 5-oxo-5-(pyridin-3-yl)pentanamide; then, 5-oxo-5-(pyridin-3-yl)pentanamide is subject to Hoffmann rearrangement to obtain 4-amino-1-(pyridin-3-yl)butanone, and a carbonyl group of 4-amino-1-(pyridin-3-yl)butanone is reduced by using (+)-B- pinocampheyl chloroborane to obtain (S)-4-amino-1-(pyridin-3-yl)butan-1-ol; then, (S)-4-amino-1-(pyridin-3-yl)butan-1-ol is subject to chloro-ring closure to obtain S-desmethylnicotine; and finally S-desmethylnicotine is subject to amine methylation to obtain S-nicotine. The described method has the advantages of simple operations, easily available raw materials, high yield, a high ee value, etc., and has mild reaction conditions and simple treatment procedures for the reaction process, which is more suitable for industrial production.
Patent WO-2022088871-A1 (WO)
Title: Brosse à plancher et dispositif de nettoyage
Inventor: ZHANG YONGSHENG
IPC: A47L9/04
Filed: 2021-08-20
Abstract: L'invention concerne une brosse à plancher et un dispositif de nettoyage, la brosse à plancher comprenant une base (1), une brosse roulante (2) et un composant de réglage (3), la brosse roulante (2) étant reliée à la base (1). La brosse roulante (2) est utilisée pour nettoyer le sol, et le composant de réglage (3) est relié de manière rotative à la base (1) et utilisé pour régler la distance entre la base (1) et le sol afin de réduire la force appliquée par l'utilisateur lorsqu'il tire la brosse à plancher vers l'arrière. La distance entre la base (1) et le sol est réglée par le composant de réglage (3) pour réduire la force appliquée par l'utilisateur lorsqu'il tire la brosse à plancher vers l'arrière, améliorant ainsi l'expérience de l'utilisateur, et augmentant la flexibilité lors du retrait de la brosse à plancher. Le composant de réglage (3) peut être relié de manière rotative à la base (1), et lorsqu'il est en contact avec le sol, une friction de roulement est générée entre la base (1) et le sol pour réduire davantage la force appliquée par l'utilisateur lorsqu'il tire la brosse à plancher vers l'arrière.
Patent WO-2023004931-A1 (WO)
Title: 多模态可切换小车
Inventor: WEI JIDONG
IPC: B62D5/24
Filed: 2021-09-03
Abstract: 一种多模态可切换小车，包括车体（100）、转向架（200）、轮组件（300）、转向驱动模块（400）、转向锁止结构和锁止感应结构（500）；车体具有被预设了多种车轮驱动程序的控制模块；转向架转动连接于车体；轮组件包括轮毂电机（310）和轮式构件，轮毂电机连接于转向架或车体，轮式构件可拆卸地连接于轮毂电机，将不同的轮式构件连接于轮毂电机可实现车轮形式的切换；转向驱动模块用于驱动转向架；转向锁止结构处于锁止位置时能够锁止转向架；锁止感应结构用于获取转向锁止结构的位置，且与控制模块电连接，控制模块能够依据锁止感应结构所获取的位置信息切换车轮驱动程序。
Patent WO-2023029009-A1 (WO)
Title: Appareil et procédé de transmission
Inventor: XU YANCHAO
IPC: H04W52/02
Filed: 2021-09-03
Abstract: Les modes de réalisation de la présente demande concernent un procédé et un appareil de transmission. Le procédé comprend les étapes suivantes : un premier dispositif reçoit, sur une première liaison, une première trame envoyée par un deuxième dispositif, la première trame comprenant des premières informations d'intervalle, qui sont utilisées pour indiquer un intervalle de temps du deuxième dispositif envoyant un message de balise au moyen d'une deuxième liaison ; le premier dispositif reçoit, sur la deuxième liaison, un premier nombre d'intervalles restants qui est envoyé par le deuxième dispositif ; et le premier dispositif détermine, en fonction des premières informations d'intervalle et/ou du premier nombre d'intervalles restants, un TBTT correspondant pour le deuxième dispositif pour transmettre une balise DTIM sur une deuxième liaison. Après réception d'une première trame, un premier dispositif reçoit ensuite, sur une deuxième liaison, un premier nombre d'intervalles restants qui est envoyé par un deuxième dispositif, de telle sorte qu'il peut être efficacement assuré que le premier dispositif peut déterminer correctement un TBTT qui correspond à une balise DTIM sur la deuxième liaison.
Patent WO-2023039781-A1 (WO)
Title: 一种遗留物检测方法、装置、电子设备及存储介质
Inventor: LIU WEIPING
IPC: G06V20/52
Filed: 2021-09-16
Abstract: 本申请实施例提供了一种遗留物检测方法、装置、电子设备及存储介质，用于提高遗留物检测的准确性，降低误检概率。所述方法包括：对采集的多帧图像进行目标检测；根据检测结果获取第一图像和第二图像；其中，所述第一图像为所述多帧图像中检测到目标对象的第一帧图像，所述第二图像为所述多帧图像中未检测到所述目标对象的第一帧图像，所述第一图像的拍摄时间早于所述第二图像的拍摄时间；对所述第一图像和所述第二图像的图像像素矩阵做差，得到第一差异图像；确定所述第一差异图像中像素值大于第一预设阈值的区域为遗留物区域。
Patent WO-2022160855-A1 (WO)
Inventor: TAN FUXING
IPC: G01M17/08
Filed: 2021-11-09
Abstract: 一种试验台反力横梁升降定位装置，包括立柱(3)以及能够沿立柱(3)的外侧面上下移动并定位的反力横梁(2)，反力横梁(2)的两端分别设有用于将反力横梁(2)固定在立柱(3)上的抱紧机构(5)，立柱(3)的外侧设有用于带动反力横梁(2)上升或下降的驱动机构(6)；驱动机构(6)包括悬吊丝杆(7)以及设于反力横梁(2)上表面的驱动电机(8)和丝母蜗轮升降机(9)，驱动电机(8)通过动力转向机构(10)和同步传动轴(11)与丝母蜗轮升降机(9)传动连接，悬吊丝杆(7)与丝母蜗轮升降机(9)的丝母相配合并穿过反力横梁(2)。定位装置结构简单、安全可靠，且方便拆装，能够为车辆或者转向架试验提供极大的辅助作用，可安全有效的缩短安装时间，为被试件试验争取更多的试验时间，显著提高试验效率。
Patent WO-2023082157-A1 (WO)
Inventor: You Xingyan
IPC: H01M4/36
Filed: 2021-11-11
Abstract: The present application provides a secondary battery and an electric device. The secondary battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector, a first negative electrode material layer, and a second negative electrode material layer. The first negative electrode material layer is located between the negative electrode current collector and the second negative electrode material layer. The first negative electrode material layer comprises a first negative electrode active material, and the second negative electrode material layer comprises a second negative electrode active material, wherein the first negative electrode active material comprises artificial graphite A and artificial graphite B, the artificial graphite A comprises secondary particles and the surface of the artificial graphite A is provided with an amorphous carbon coating layer, and the artificial graphite B comprises primary particles and the surface of the artificial graphite B does not have an amorphous carbon coating layer. The rate capability of the secondary battery can be improved, and the secondary battery has long service life.
Patent WO-2022160866-A1 (WO)
Inventor: ZHANG XIAOJIA
IPC: G02B21/24
Filed: 2021-11-12
Abstract: A microscopic device and a focusing method of the microscopic device. The microscopic device comprises: a stage (100), which is disposed to carry a transparent carrier (20) and drive the transparent carrier (20) to move horizontally in at least one direction, the transparent carrier (20) comprising at least two carrying positions (A1, A2, A3); a microscope objective (200) located on one side of the stage (100); a distance measuring module (300), which is located on the same side of the stage (100) as the microscope objective (200) and located at the same height relative to the stage (100), the distance measuring module (300) being configured to measure a distance between the surface of each carrying position (A1-A3) and the microscope objective (200); and a focusing module (400), the distance measuring module (300) and the microscope objective (200) both being connected to the focusing module (400), and the focusing module (400) being configured to adjust the position of the microscope objective (200) in a first direction (ZZ') according to a distance measured by the distance measuring module (300), wherein the first direction (ZZ') is perpendicular to a carrying face of the stage (100).