baber/WOPTO huggingface dataset:
Patent WO-2020107798-A1 (WO)
Inventor: WANG YADONG
IPC: F25B43/00
Filed: 2019-04-26
Abstract: Disclosed is a liquid storage tank applied to a compressor. The liquid storage tank comprises a shell (1) with an air inlet pipe (2) and an air outlet pipe (3), wherein the air outlet pipe (3) comprises an extending section (31), and the extending section (31) extends into the shell (1); and the liquid storage tank further comprises a separator (4) used for separating out a liquid refrigerant, and a sleeve (32), wherein the separator (4) is arranged between the air inlet pipe (2) and the extending section (31), the sleeve (32) is sleeved on the outside of the extending section (31), the end of the sleeve (32) that is away from the separator (4) is closed, the end of the sleeve that is close to the separator (4) is used for receiving the liquid refrigerant separated out by the separator (4), a first liquid storage space (61) is formed between the sleeve (32) and the extending section (31), an oil return hole (310) is formed in a pipe wall of the extending section (31), and the oil return hole (310) communicates with the first liquid storage space (61). The liquid storage tank applied to the compressor can ensure the flow power of the liquid refrigerant and a lubricating oil mixture, regardless of whether same is under a high-temperature working condition with less refrigerant or a low-temperature working condition with more refrigerant, the oil return amount remains stable, and requirements of a heat pump system running across a wide range of ambient temperatures are met.
Patent WO-2019218915-A1 (WO)
Title: Neutron capture therapy system and placement table
Inventor: LIU YUAN-HAO
IPC: A61N5/10
Filed: 2019-05-08
Abstract: The present application provides a neutron capture therapy system. The neutron capture therapy system is provided with a neutron generating device for generating a neutron beam, an irradiation chamber for irradiating an irradiated body with a neutron beam, and a placement table housed in the irradiation chamber and used for placing the irradiated body. The placement table comprises a placement member for placing a patient, an adjustment device for adjusting the spatial position of the placement member, a driving rod connected between the adjustment device and the placement member, and a first shielding member wrapping the adjustment device, the first shielding member preventing the adjustment device from being radiated by radioactive rays. The adjustment device drives the driving rod to move so as to adjust the spatial position of the placement member, and the first shielding member is provided with a through slot for providing a receiving space for the movement of the driving rod. The adjustment device is disposed inside the basically-sealed first shielding member, so that the radiation damage on the adjustment device caused by neutrons and gamma rays is greatly reduced, and the service life of the adjustment device is prolonged.
Patent WO-2019218962-A1 (WO)
Inventor: KIM TAIRONG
IPC: G09G5/00
Filed: 2019-05-13
Abstract: 一种亮度补偿方法及装置（500），涉及显示技术领域。亮度补偿方法包括：采集曲面区域的像素在形成曲面区域前的原始亮度数据；采集曲面区域的像素在形成曲面区域后的当前亮度数据（101）；根据原始亮度数据和当前亮度数据，确定曲面区域的像素的亮度补偿系数（102）；以及根据亮度补偿系数对原始亮度数据进行补偿，得到曲面区域的像素的目标亮度数据（103）。
Patent WO-2020010945-A1 (WO)
Title: Image processing method and apparatus, electronic device and computer-readable storage medium
Inventor: CHEN YAN
IPC: G06T7/80
Filed: 2019-05-28
Abstract: Disclosed is an image processing method, comprising: acquiring a calibrated image; testing the calibrated image to obtain a bevel edge area; acquiring a first modulus transfer function of the bevel edge area; reading a second modulus transfer function of a central area of the calibrated image; acquiring the ratio of the first modulus transfer function to the second modulus transfer function; and when the ratio exceeds a threshold value, determining that the definition of the calibrated image meets a preset condition.
Patent WO-2020237515-A1 (WO)
Inventor: LEI YONG
IPC: B65D90/12
Filed: 2019-05-29
Abstract: La présente invention concerne un matériau de SMC à indice de résistance au feu élevé comprenant un corps de réservoir d'eau (A01), des fers d'angle de renforcement (A05) et des bielles (A10). Des plaques de réservoir d'eau (A02) sont disposées à l'intérieur du corps de réservoir d'eau. En outre, des blocs saillants (A03) sont agencés sur l'intérieur des plaques de réservoir d'eau. Des dissipateurs de trop-plein (A04) sont disposés au niveau de la droite supérieure des saillies. Les fers d'angle de renforcement sont raccordés à l'intérieur des plaques d'eau. En outre, les extrémités avant des fers d'angle de renforcement sont dotées de rainures de mise en prise (A06). Les rainures de mise en prise sont raccordées sur l'extérieur à des nervures de renforcement (A07). En outre, des plaques de nervure d'étanchéité (A08) sont montées au niveau des extrémités avant des nervures de renforcement. Des boulons de fixation (A09) s'étendent à travers l'intérieur des plaques de nervure d'étanchéité. Pour le matériau de SMC à indice de résistance au feu élevé, les fers d'angle de renforcement et les nervures de renforcement constituent une structure en prise par l'intermédiaire des rainures de mise en prise, les rainures de mise en prise et les nervures de renforcement s'ajustent en termes de taille, les fers d'angle de renforcement peuvent être fixés par les boulons au niveau desquels les plaques de réservoir d'eau sont raccordées, les nervures de renforcement sont en prise de façon coulissante et raccordées aux fers d'angle de renforcement par l'intermédiaire des rainures de mise en prise, et les nervures de renforcement augmentent l'étanchéité et la robustesse des fers d'angle de renforcement, ce qui permet d'augmenter la stabilité des raccordements de ceux-ci et permet d'obtenir une meilleure résistance à la pression de l'eau.
Patent WO-2020119042-A1 (WO)
Inventor: LU HAICHAO
IPC: B61D37/00
Filed: 2019-06-12
Abstract: 提供一种轨道车辆及其行李架安装结构（1）。该行李架安装结构（1）包括：安装支架（11），固定连接在车体（2）上，在安装支架（11）与车体（2）之间的空间内设置有线槽（4）；行李架（12），固定安装于安装支架（11）；上盖板（13），其顶面形成风道（3）的底壁，用于在车顶（21）和上盖板（13）之间形成风道（3）；照明支架（14），安装于车体（2）上，用于安装照明装置（5）；下盖板（15），用于密封行李架与照明支架（14）之间的开口。该行李架安装结构（1）能够充分利用上盖板（13）与车体（2）之间的空间形成风道（3），并将线槽（4）布置在安装支架（11）与车体（2）之间的空间内，能够提高车顶部分空间的利用率。
Patent WO-2020252803-A1 (WO)
Inventor: ZHU YAN
IPC: H01M50/547
Filed: 2019-06-25
Abstract: A single cell battery, a power battery pack and a vehicle, the single cell battery comprising: a housing and a pole piece located in the housing; the housing has a plurality of sides, and is at least provided with two electrode terminals which are provided on the sides, are electrically connected to the pole piece and extend outside of the housing for use in leading out a current, wherein there are at least two electrode terminals on each side. The pole piece is provided with a pole tab, the electrode terminals are electrically connected to the pole piece by means of the pole tab, 600mm<L, and L is the length of the single cell battery.
Patent WO-2021000073-A1 (WO)
Title: Élément d'antenne, réseau d'antennes et station de base
Inventor: LIU JIANCHUAN
IPC: H01Q1/52
Filed: 2019-06-29
Abstract: La présente invention concerne le domaine technique des communications, et en particulier un élément d'antenne, un réseau d'antennes et une station de base. L'élément d'antenne comprend un couvercle conducteur, une partie de rayonnement et une partie d'alimentation ; une rainure de réception est disposée sur le couvercle conducteur, et la partie de rayonnement et la partie d'alimentation sont chacune disposées dans la rainure de réception ; la partie d'alimentation est utilisée pour alimenter en électricité la partie de rayonnement, et la partie d'alimentation et la partie de rayonnement sont agencées à distance l'une de l'autre. Le réseau d'antennes comprend au moins l'un des éléments d'antenne décrits. La station de base comprend le réseau d'antennes décrit. L'élément d'antenne, le réseau d'antennes et la station de base de la présente invention présentent les avantages d'une bonne directivité d'ondes électromagnétiques pour un rayonnement et d'une bonne isolation entre l'élément d'antenne et d'autres éléments.
Patent WO-2020007269-A1 (WO)
Title: Camera decoration frame and mobile terminal
Inventor: LI JIE
IPC: H04M1/02
Filed: 2019-07-01
Abstract: A camera decoration frame (100) may include a decoration portion (130) configured to fix and decorate a camera of the electronic device (10), a light guide portion (110) configured to be fixedly connected to the decoration portion (130) and a light emitting portion (120) configured to be located inside the electronic device (10) and emit light to illuminate the light guide portion (110). The light guide portion (110) may be a continuous structure, a first partial structure of the light guide portion (110) may be located inside the electronic device (10), and a second partial structure of the light guide portion (110) may be exposed to an outside of the rear cover (300) and have a part exposed out of an outer circumferential surface of the decoration portion (130). The light guide portion (110) may conduct the emitted light to outside of the rear cover (300).
Patent WO-2020007335-A1 (WO)
Inventor: LI XIANGYU
IPC: C11C3/10
Filed: 2019-07-04
Abstract: L'invention concerne un procédé d'abaissement de l'indice d'iode d'un glycéride, comprenant : l'activation d'un glycéride, d'un acide gras saturé et d'un alcali pour effectuer une réaction catalytique sous l'action d'une lipase de façon à obtenir un glycéride ayant un faible indice d'iode. Au moyen d'une quantité suffisante de résidus d'acides gras saturés fournis par un sel d'acide gras saturé formé in situ par un acide gras saturé correspondant et un alcali et l'action catalytique d'une lipase unidirectionnelle, les conditions de réaction sont douces ; une réaction secondaire est rare ; et l'indice d'iode du glycéride est efficacement abaissé.
Patent WO-2021003644-A1 (WO)
Inventor: PADULLAPARTHI BABU DAYAL
IPC: H01S5/18
Filed: 2019-07-08
Abstract: A semiconductor laser beam shaper includes a VCSEL device and a lens member. The VCSEL device includes a substrate, first-type and second-type doped distributed Bragg reflectors, an active layer, a surface relief layer, a confinement member, and first and second electrodes. The surface relief layer is formed on the second-type doped distributed Bragg reflector and has a thickness equaling to N*λ/4n, where λ is the wavelength of a laser beam generated by the active layer, n is the refractive index of the surface relief layer, and N is a positive integer not less than 3. The confinement member defines an aperture having an aperture width. The lens member has a lens width greater than the aperture width. The VCSEL device has a mesa structure.
Patent WO-2020181697-A1 (WO)
Inventor: LIU PENGFEI
IPC: H04W36/00
Filed: 2019-07-09
Abstract: 本发明实施例涉及通信技术领域，公开了一种基于可穿戴设备的网络优化方法及可穿戴设备，该方法包括：检测可穿戴设备是否处于乒乓切换网络环境；如果是，监控可穿戴设备的状态，获得可穿戴设备的状态信息，其中，状态信息包括通话状态信息、数据网络状态信息、屏幕状态信息和定位信息；根据状态信息调节网络制式，该网络制式为数据网络的类型；记录网络制式的调节信息，该调节信息包括调节时间和调节效果指示信息；根据调节信息动态调整可穿戴设备中与网络制式相关的调节参数组，获得目标调节参数组，以根据目标调节参数组调节网络制式。实施本发明实施例，能够在乒乓切换网络环境下降低功耗，延长可穿戴设备的续航时间。
Patent WO-2021022445-A1 (WO)
Inventor: PAN DEWANG
IPC: B27N3/04
Filed: 2019-08-05
Abstract: A wooden fireproof pressure-treated board, formed with a wooden powder material at a content of 50 wt% or more and additives being mixed evenly and pressure treated at 2-10 MPa at a cooled temperature; the additives comprise a metal oxide, a nonmetal oxide, a hydrochloride, a sulfate, a phosphate, a weak acid, and a strong acid. A manufacturing method for the wooden fireproof pressure-treated board comprises the following steps: a. controlling raw material fineness at 20-100 meshes, and mixing evenly; b. laying a board; c. pressing at room temperature, and controlling the pressure at 2-10 MPa; d. holding the pressure for 12-36 h; and, e. extracting the board, and balancing for 3-10 days at room temperature.
Patent WO-2020252880-A1 (WO)
Title: 反向图灵验证方法及装置、存储介质、电子设备
Inventor: GAO CHAO
IPC: G06F21/31
Filed: 2019-08-19
Abstract: 一种反向图灵验证方法及装置、存储介质、电子设备，属于计算机技术领域，该方法包括：获取当前设备的设备标识(S210)；若所述当前设备访问验证码页面，则根据所述设备标识查询所述当前设备的历史验证信息(S220)；根据所述历史验证信息确定是否在所述验证码页面显示验证码(S230)。该方法通过历史验证信息来确定是否需要在验证码页面显示验证码，提高了反向图灵验证的可靠性和易用性。
Patent WO-2020052538-A1 (WO)
Title: Method for treating cancer related to activation of ras gene in subject
Inventor: LI QINGHUA
IPC: A61P35/00
Filed: 2019-09-10
Abstract: A method of treating a type of cancer related to activation of an RAS gene in a subject is disclosed, involving administering to the subject a therapeutically effective amount of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, a pharmaceutically acceptable salt thereof, or a solvate thereof. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine was found to reduce the level of RAS mRNA. 24 mM of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine is capable of reducing RAS mRNA level by 3.5 folds. The compound also has a significant tumor suppressive effect on a Drosophila tumor model.
Patent WO-2020258524-A1 (WO)
Title: 阵列基板及液晶显示装置
Inventor: LIU FANCHENG
IPC: G02F1/1333
Filed: 2019-09-11
Abstract: 一种阵列基板及液晶显示装置，阵列基板（10）包括形成于驱动电路层（101）上的加热电极层（103）；基于该加热电极层（103），可以实现对液晶加热，从而加快液晶响应速度，同时该加热电极层（103）设置在驱动电路层（101）上，且位于反射区域（RA），在不影响液晶显示装置正常显示的同时，又可以对所有的液晶进行均匀加热。
Patent WO-2021051281-A1 (WO)
Title: Point-cloud noise filtering method, distance measurement device, system, storage medium, and mobile platform
Inventor: WU TESI
IPC: G01S7/487
Filed: 2019-09-17
Abstract: Provided are a point-cloud noise filtering method, distance measurement device, system, storage medium, and mobile platform, the method comprising: obtaining feature information of each point-cloud point in point cloud data collected by a ranging device within a preset continuous time window (S501), the feature information comprising at least one of the following: depth, scan angle, spatial curvature, pulse waveform features, reflectivity, and echo energy; according to whether the change of the feature information of the continuous point-cloud points within the preset continuous time window is continuous, determining the noise points in the point cloud data collected within the preset continuous time window (S502), the noise points comprising at least one point-cloud point that is not continuous with the feature information of other point-cloud points within the preset continuous time window. The timing information and original sampling data inherent to the point-cloud points in the point cloud data collected by the ranging device is fully utilized, can effectively filter light noise points, rain and fog noise points, crosstalk noise points, and wire-drawing noise points, etc., significantly improving the quality of the point cloud.
Patent WO-2020069656-A1 (WO)
Inventor: KUO TSUN-YUNG
IPC: C12Q1/6888
Filed: 2019-09-27
Abstract: L'invention concerne un procédé de détection d'un pathogène de poisson, et une paire d'oligonucléotides permettant de détecter un pathogène de poisson.
Patent WO-2021062778-A1 (WO)
Inventor: HUANG QUFANG
IPC: H04W72/08
Filed: 2019-09-30
Abstract: Disclosed is a data transmission method, wherein same is used for the flexibility of MBMS data sending and also reducing the implementation difficulty thereof. The data transmission method comprises: firstly, a first network device receiving indication information from a second network device, wherein the indication information is used to indicate candidate physical time-frequency resources and corresponding physical parameters thereof, and the candidate physical time-frequency resources are used to send multimedia broadcast multicast service (MBMS) data; secondly, the first network device acquiring, from the candidate physical time-frequency resources, first physical time-frequency resources and physical parameters corresponding to the first physical time-frequency resources; and finally, the first network device using the physical parameters corresponding to the first physical time-frequency resources to send, on the first physical time-frequency resources, the MBMS data to a terminal device.
Patent WO-2020078410-A1 (WO)
Title: Sample treatment device and method, and digital pcr system comprising treatment device
Inventor: LI ANG
IPC: C12M1/36
Filed: 2019-10-17
Abstract: Disclosed are a sample treatment device and method, a digital PCR system comprising the treatment device. The sample treatment device comprises a sample treatment consumable, a drive module connected thereto, and a control module. The sample treatment consumable comprises a substrate, multiple extraction cavities, a sample cavity, a transfer channel provided between the sample cavity and the extraction cavity and used for communicating with both, and an agent consumable having an agent storage cavity. The multiple extraction cavities are communicated with each other on the bottom by means of a micro-channel. The agent storage cavity is communicated with the sample cavity by means of the micro-channel. The sample treatment device in the present invention can have multiple functions such as extracting a nucleic acid and mixing an agent, and is applicable for obtaining a sample directly used for digital PCR detection. Moreover, the device is simple and compact in structure, is small in size, can be performed modular design, and is applicable for constructing an integrated droplet-type digital PCR system.
Patent WO-2020088290-A1 (WO)
Inventor: CHEN GUOQIAO
IPC: G06T7/55
Filed: 2019-10-21
Abstract: 本申请实施例提供一种获取深度信息的方法及电子设备，应用于图像处理技术领域，可以提高电子设备获取的目标对象的深度信息的准确度。具体方案包括：电子设备包括第一摄像头、第二摄像头和红外投射器；电子设备接收用于触发电子设备获取目标对象的深度信息的第一指令；响应于第一指令，通过红外投射器发射带光斑的红外光，通过第一摄像头采集目标对象的第一图像信息，通过第二摄像头采集目标对象的第二图像信息，第一图像信息和第二图像信息包括目标对象的特征和带光斑的红外光照射在目标对象上形成的纹理特征；根据第一图像信息、第二图像信息、第一长度、以及第一摄像头的镜头焦距和第二摄像头的镜头焦距，计算目标对象的深度信息。
Patent WO-2021081749-A1 (WO)
Inventor: WANG PENG
IPC: F01L1/344
Filed: 2019-10-29
Abstract: A camshaft phaser and a working method therefor. An oil storage part (P) and controllable oil paths (P1, P2) are formed inside a rotor (20) of the camshaft phaser, and each first oil cavity (A) and each second oil cavity (B) can be controllably communicated/closed with the oil storage part (P) via different controllable oil paths (P1, P2). When the controllable oil paths (P1, P2) are communicated, the controllable oil paths (P1, P2) can be in a first communication mode, and in this case, oil pressure is utilized to only allow oil to flow from the oil storage part (P) into the corresponding oil cavities (A, B) via the controllable oil paths (P1, P2); and when the controllable oil paths (P1, P2) are communicated, the controllable oil paths (P1, P2) can also be in a second communication mode, and in this case, a torque of a camshaft (CS) can be utilized to enable oil to flow from the corresponding oil cavities (A, B) into the oil storage part (P). Thus, the desired flowing of oil between the two oil cavities (A, B) can be implemented by only utilizing the torque of the camshaft (CS), so that the camshaft phaser can obtain a desired phase modulation function. Therefore, compared with a camshaft phaser of the prior art, the camshaft phaser does not need to consume extra fuel, is simpler in structure, and is lower in cost.
Patent WO-2021081909-A1 (WO)
Title: Focusing method for photographing device, photographing device, system, and storage medium
Inventor: MA NING
IPC: H04N5/232
Filed: 2019-10-31
Abstract: The embodiments of the present application provide a focusing method for a photographing device, a photographing device, a system and a storage medium. Said method comprises: detecting a first distance between a target focus object and a second photographing device by means of the second photographing device of which the calculation processing speed is faster than that of the first photographing device, acquiring a second distance, determined on the basis of the first distance, between the target focus object and the first photographing device, and photographing, on the basis of the second distance, the target focus object in a second image acquired by the first photographing device. In this way, the present invention achieves the purpose of using a second photographing device with a higher calculation processing speed to assist a first photographing device with a slower calculation processing speed, so as to perform focusing, improving the focusing speed of the first photographing device.
Patent WO-2021087875-A1 (WO)
Inventor: DENG JUN
IPC: H04W56/00
Filed: 2019-11-07
Abstract: Embodiments of the present disclosure provide methods and apparatuses for communication. A method performed by a first network device comprises reaching a synchronization state with a first communication device based on alignment information of a first interface of the first network device. The first interface of the first network device is connected with the first communication device and the alignment information of the first interface includes at least one of a line rate order for line rate iteration, an iteration time interval and an iteration start time. The method further comprises determining whether a second network device has reached the synchronization state with a second communication device at a same line rate as the first interface of the first network device, wherein the second network device includes a second interface connected with the second communication device, the second network device tries to reach the synchronization state with the second communication device based on the same alignment information as the first interface of the first network device. The method further comprises when both the first network device and the second network device have reached the synchronization state with respective communication devices at the same line rate, locking the same line rate at the first interface of the first network device.
Patent WO-2020134642-A1 (WO)
Inventor: CHANG CHUN SHENG
IPC: F25D31/00
Filed: 2019-11-08
Abstract: 一种液体冷却器，包括热液体容器（1）、冷液体容器（2）、冷却套管（3）、换热器（4）和多根连接管。热液体容器（1）通过连接管连通冷却套管（3）。冷却套管（3）为双层管结构，冷却套管（3）的内层管用于输送热液体而外层管用于输送冷却水，冷却水对内层的热液体进行一次冷却降温形成冷液体经连接管到达冷液体容器（2），换热器（4）循环对冷液体进行二次冷却降温形成冰液体，热液体经过两级冷却降温后制成符合温度要求的冰液体饮料。
Patent WO-2020103731-A1 (WO)
Inventor: YANG JIAN
IPC: H04R1/10
Filed: 2019-11-13
Abstract: The utility model provides an earbud, comprising a headset case, a housing, a circuit board, a speaker, and a magnetic member. The housing has an accommodation space therein; the circuit board and the speaker are both disposed in the accommodation space; the housing is at least partially sleeved with the headset case; the magnetic member is disposed between the headset case and the housing. By disposing the magnetic member between the housing and the headset case, for example, in an accommodation groove used for accommodating the magnetic member and formed by inwardly denting the side of the housing covered by the headset case, the magnetic member is placed outside the housing, so that the magnetic member is not blocked from the outside by the housing, and thus, the magnetic force is increased when the earbud is magnetically attracted, making the positioning more stable. The earbud provided by the utility model has a simple structure and strong practicability, and is easy to implement and suitable for promotion and application.
Patent WO-2020134677-A1 (WO)
Inventor: LIU MING
IPC: G06F16/51
Filed: 2019-11-14
Abstract: 一种野广告处理方法、装置以及计算机可读存储介质，该方法包括：获取数据库中已建立关联关系的图片的位置信息（S11）；根据所述已建立关联关系的图片的位置信息，确定张贴野广告的高发区域（S12）；获取所述张贴野广告的高发区域的视频数据（S13）；根据所述张贴野广告的高发区域的视频数据，确定张贴野广告的嫌疑人（S14）。
Patent WO-2021097874-A1 (WO)
Title: 激励器与屏幕贴合的屏幕发声模块化结构、移动通讯终端
Inventor: Ge huan
IPC: H04M1/02
Filed: 2019-11-26
Abstract: 本发明提供了一种激励器与屏幕贴合的屏幕发声模块化结构，其包括设备屏幕以及与设备屏幕电连接的设备主板，该屏幕发声模块化结构还包括与设备屏幕电连接的柔性电路板以及与柔性电路板电连接的激励器，柔性电路板具有与设备主板电连接的连接器以及与连接器电连接的激励器驱动电路，激励器通过激励器驱动电路与设备主板电连接。应用本发明技术方案解决了当前技术中屏幕发声设备存在的设备屏幕保护不足，且结构复杂导致装配效率低的问题。
Patent WO-2020155822-A1 (WO)
Title: 机械手装置控制方法及控制系统
Inventor: JIANG JIAN
IPC: B25J9/10
Filed: 2019-11-28
Abstract: 一种机械手装置的控制方法，机械手装置包括齿轮传动机构（100）；机械手装置的控制方法包括以下步骤：在机械手装置的一次停机时获取齿轮传动机构（100）所处的第一啮合位置（S110）；接收下一次停机信号(S120)；获取与下一次停机信号对应的齿轮传动机构（100）的当前啮合位置(S130)；计算下一次停机时齿轮传动机构（100）所处的第二啮合位置(S140)；判断第二啮合位置与第一啮合位置是否相同(S150)；若第二啮合位置与第一啮合位置相同，控制齿轮传动机构（100）转动第一预设角度(S160)。