baber/WOPTO huggingface dataset:
Patent WO-2020001292-A1 (WO)
Inventor: ZHANG TAO
IPC: H02N15/00
Filed: 2019-06-14
Abstract: La présente invention concerne un moteur asynchrone sans palier à trois degrés de liberté, comprenant un rotor et un stator, le rotor est constitué d'un arbre tournant et d'un noyau de fer de rotor, et des barres conductrices de rotor sont montées au niveau de la circonférence extérieure du noyau de fer de rotor. Le stator comprend un noyau de fer de stator et un anneau à aimants permanents de stator, tous deux étant connectés successivement radialement vers l'extérieur le long du noyau de fer de rotor, et des noyaux de fer de commande axiaux et des enroulements de suspension axiaux qui sont disposés symétriquement de deux côtés du noyau de fer de stator ; les bords extérieurs des noyaux de fer de commande axiaux sont en butée contre la paroi extérieure de l'anneau à aimants permanent de stator et s'adaptent à cette dernière, et les bords intérieurs des noyaux de fer de commande axiaux s'étendent en direction du noyau de fer de rotor et sont pourvus d'entrefers de travail axiaux ; les enroulements de suspension axiaux s'adaptent aux parois internes des bords extérieurs des noyaux de fer de commande axiaux et sont espacés du noyau de fer de stator ; et des enroulements de couple de moteur et des enroulements de suspension radiaux situés respectivement au niveau de couches intérieures et de couches extérieures sont enroulés autour du noyau de fer de stator.
Patent WO-2020252666-A1 (WO)
Inventor: MENG XIANTAO
IPC: H04L12/803
Filed: 2019-06-18
Abstract: Disclosed are an edge computing device and method for an industrial Internet of Things, and a computer-readable storage medium. The edge computing device comprises: a model generation module adapted to generate, based on a historical load value of an industrial device, a load prediction model of the industrial device; a prediction module adapted to determine, based on the load prediction model, a load prediction value of the industrial device at a future edge operation time point; and an edge operation module adapted to determine, based on the load prediction value, a strategy for executing an edge operation at the future edge operation time point. The implementation mode of the present invention does not need to use a sensor to detect an operating environment, and can save on cost, and a task plan of an edge computing device is maintained in coordination with an operating state of the industrial device.
Patent WO-2020011096-A1 (WO)
Inventor: YUE RAN
IPC: H04W72/12
Filed: 2019-07-04
Abstract: 本公开公开了一种上行传输方法及终端，其方法包括：在第一信道与第二信道的资源发生重叠的情况下，按照信道类型和/或信道传输的业务类型，在重叠资源上发送第一信道和/或第二信道。
Patent WO-2020020377-A1 (WO)
Title: Fused ring derivative used as fgfr4 inhibitor
Inventor: YANG HONGWEI
IPC: C07D519/00
Filed: 2019-07-29
Abstract: A compound represented by formula I or a pharmaceutically acceptable salt thereof and a use thereof in preparing a drug for treating, stopping, or preventing a disease or disorder mediated by FGFR4 activity.
Patent WO-2020078067-A1 (WO)
Title: Rapid screw thread matching mechanism for motor checking
Inventor: Wei Kankan
IPC: G01B21/16
Filed: 2019-07-30
Abstract: A rapid screw thread matching mechanism for motor checking used for rapidly linking an output shaft (11) of a motor to be checked (1) to a tightening and driving mechanism, comprising a platform. The platform is provided with a motor positioning base (2) for positioning the motor to be checked (1) and a tightening and driving mechanism for tightening the output shaft (11) of the motor to be checked. The platform is also provided with a support panel (3), said support panel (3) having a support groove (31) that penetrates the left side and right side of the panel. The inside of the support groove (31) is used for matching with a linking block (4), said linking block (4) having a matching hole (40) that penetrates the left side and the right side of the linking block. The plane of lower edge of the linking block (4) forms an included angle with the plane of the upper edge of the linking block (4). The linking block (4) is a structure of which the thickness gradually decreases from left to right. The height between the upper and lower edges at the left most side of the support groove (31) is greater than the thickness between the upper and lower edges of the right most side of the linking block (4). The lower left side of the hole wall of the matching hole (4) forms an internal screw thread structure (400) that matches the external screw thread structure on the output shaft (11).
Patent WO-2020042969-A1 (WO)
Title: 拖擦件、拖擦装置、清洁机器人及清洁机器人的控制方法
Inventor: ZHANG JUNBIN
IPC: A47L11/283
Filed: 2019-08-20
Abstract: 本申请涉及一种拖擦件、拖擦装置、清洁机器人及清洁机器人的控制方法。该拖擦件包括第一拖布和第二拖布，第一拖布具有第一旋转中心，第二拖布具有第二旋转中心，第一旋转中心与第二旋转中心的距离为旋转中心距。第一拖布及第二拖布旋转时，其中一块拖布的短径边缘会相对应到另一块拖布的长径边缘，在第一旋转中心与第二旋转中心的连线处，其中一块拖布的短径边缘与另一块拖布相对应的长径边缘之间形成第一拖布和第二拖布之间的缝隙。
Patent WO-2020232874-A1 (WO)
Inventor: MA XINJUN
IPC: G06N20/00
Filed: 2019-08-27
Abstract: 一种基于迁移学习的建模方法，包括：将待学习标签样本和目标标签样本进行核主成份分析，得到与待学习标签样本对应的第一降维特征，与目标标签样本对应的第二降维特征；将第一降维特征和第二降维特征输入已训练的通用特征获取模型中，得到通用列特征；将第一降维特征输入与目标标签样本对应的基础模型进行测试，得到与第一降维特征对应的权重信息，将权重信息高于预设权重阈值的第一降维特征作为通用行特征；将通用列特征和通用行特征输入与目标标签样本对应的基础模型中进行模型训练，得到目标模型。
Patent WO-2021068274-A1 (WO)
Inventor: LIU MIN
IPC: G05B19/418
Filed: 2019-10-16
Abstract: 基于操作完工时间快速预测的集成电路生产线调度方法，属于先进制造、自动化和信息领域，其特征在于，针对以最小化平均流经时间为调度目标的集成电路生产线调度问题，首先通过松弛不可中断约束，提出一种基于机器负载的操作完工时间快速预测(CTP-ML)方法对操作完工时间进行预测，之后，根据各个操作的完工时间预测值，将集成电路生产线调度问题迭代分解为多个连续交迭的子调度问题，在每次迭代中，采用一种基于双信息素的蚁群算法(ACO-D)求解当前迭代阶段的子调度问题，并固定该子调度问题解的开始加工时间，将其余操作滚动到下一迭代子调度问题中。使用该调度方法可有效改善集成电路生产线的平均流经时间调度指标。
Patent WO-2020088337-A1 (WO)
Title: Ultrasonic atomizing sheet
Inventor: GUO XIAOYI
IPC: B05B17/06
Filed: 2019-10-24
Abstract: An ultrasonic atomizing sheet, comprising a piezoelectric substrate (2021), a first electrode layer (2022) fixedly provided on one side surface of the piezoelectric substrate, and a second electrode layer (2023) fixedly provided on the other side surface of the piezoelectric substrate, a first protective layer (2024) being fixedly provided on the outer surface of the first electrode layer, and a second protective layer (2028) being fixedly provided in the central region of the first protective layer. The central region of the ultrasonic atomizing sheet is not easily damaged and not easy to burn out, having a long service life.
Patent WO-2021062918-A1 (WO)
Title: Dynamic resource indication method and apparatus
Inventor: LIU FENGWEI
IPC: H04W72/00
Filed: 2019-11-08
Abstract: A dynamic resource indication method and an apparatus, which are used for realizing dynamic resource indication in the case of an MT multi-carrier DU multi-cell. The method comprises: a first node determining, according to first indication information sent by a second node or a host node, semi-persistent resource configuration of first resources corresponding to D carriers and second resources corresponding to F cells; and the first node determining, according to second indication information sent by the second node or the host node, an available state of an available resource of the first resources corresponding to the D carriers and an available state of a dynamic resource of the second resources corresponding to the F cells.
Patent WO-2021017286-A1 (WO)
Inventor: ZHAO MOYAN
IPC: G06K9/00
Filed: 2019-11-12
Abstract: 本申请是关于一种人脸识别方法、装置、电子设备及计算机非易失性可读存储介质，属于人脸识别技术领域，该方法包括：当接收到第一人脸图像，进行关键点检测；获取每个可检测关键点的识别分数及缺失关键点的编号；获取部分人脸特征被遮挡区域对识别人脸的影响分数；当影响分数高于预定分数阈值时，获取多个可检测关键点中与缺失关键点具有预定人脸特征关联关系的多个目标关键点；获取与多个目标关键点的位置结合度大于预定结合度阈值的目标人脸特征模板；将所述目标人脸特征模板与所述第一人脸图像缝合，得到第二人脸图像，以根据第二人脸图像检测所有关键点后进行人脸识别。本申请在人脸特征缺失时，进行特征准确补充，进而可以高效、准确地进行人脸识别。
Patent WO-2020224221-A1 (WO)
Title: Tracking method and apparatus, electronic device, and storage medium
Inventor: CHE HONGWEI
IPC: G06K9/00
Filed: 2019-11-13
Abstract: A tracking method and apparatus, an electronic device, and a storage medium. The tracking method comprises: when a tracking instruction is received, obtaining an image comprising a human body (S10); preprocessing the image to obtain an image to be identified (S11); inputting the image to be identified into a pre-trained neural network model to obtain a labeled image having a key point label (S12); using a vertical perception salient region detection algorithm, segmenting the labeled image on the basis of the key point label to obtain a character image (S13); extracting a feature vector of the character image (S14); and processing the feature vector by using a support vector machine learning algorithm, and identifying a target character in the character image (S15), thereby realizing accurate tracking for a character on the basis of an image processing technology, and effectively avoiding environmental interference.
Patent WO-2021077548-A1 (WO)
Inventor: WANG SHENGQI
IPC: G01N21/01
Filed: 2019-12-02
Abstract: 本申请提供了一种量子点荧光探测装置、量子点荧光监测仪及其监测方法，涉及生物科学研究与医学检验应用技术领域。该量子点荧光探测装置包括基座、导向柱和探测模块；导向柱竖立于基座上，探测模块活动设置在导向柱上，探测模块能够相对于基座沿导向柱的长度方向移动；探测模块包括出射光源和荧光探头；出射光源配置成照射试纸条，荧光探头配置成收集试纸条上产生的荧光。本申请的量子点荧光探测装置，将出射光源和荧光探头集成设置为探测模块，控制探测模块的上下升降可分别获取试纸条上T线和C线产生的荧光，通过对荧光强度的计算和比对，准确测定试纸条上的被检分析物。
Patent WO-2021103096-A1 (WO)
Title: 一种无隔片圆管及其应用
Inventor: SHI LINCHONG
IPC: C08K5/101
Filed: 2019-12-05
Abstract: 本发明涉及肠衣加工领域，提供了一种无隔片圆管，包括圆管本体1；靠近所述圆管本体1的一端的两侧分别设置有第一压片2，靠近所述圆管本体1另一端的两侧分别设置有第二压片3；所述第一压片2的两侧边缘通过第一连接块2-1与圆管本体1连接；所述第二压片3的两侧边缘通过第二连接块3-1与圆管本体1连接。
Patent WO-2020135502-A1 (WO)
Inventor: LI SONG
IPC: F24F13/15
Filed: 2019-12-25
Abstract: 一种空调器的导风组件及具有该导风组件的空调，所述导风组件包括有风道（1）和导风门（2），所述风道（1）设置于空调器内、且该风道（1）上设有沿其长度方向延伸的出风口（11），所述导风门（2）转动设置在所述风道（1）的出风口（11）处，所述导风门（2）的背部设置有扫风格栅（3），所述导风门（2）与扫风格栅（3）同步转动，还包括有防止扫风格栅（3）在转动的过程中脱离风道的旋转限位结构；该旋转限位结构使得导风门（2）和扫风格栅（3）相对风道（1）同步转动的过程中，扫风格栅（3）始终与风道（1）定位在一起，防止扫风格栅（3）相对风道（1）沿着出风方向移动，从而使其在转动过程中，其运动更加地顺畅，在一定程度上改善了导风门的变形。
Patent WO-2020140827-A1 (WO)
Title: Procédé et appareil utilisés dans un nœud destiné à une communication sans fil
Inventor: ZHANG XIAOBO
IPC: H04W74/08
Filed: 2019-12-26
Abstract: L'invention concerne un procédé et un appareil utilisés dans un nœud de communication destiné à une communication sans fil. Le procédé comprend les étapes suivantes : un premier nœud envoie une première séquence et un premier signal sans fil ; reçoit une première signalisation ; et reçoit un second signal sans fil, le second signal sans fil transportant un premier bloc d'informations et un second bloc d'informations, le premier bloc d'informations étant utilisé pour déterminer X séquences caractéristiques, X étant un nombre entier positif ; le second bloc d'informations comprend X sous-blocs d'informations de second type, et les X Sous-blocs d'informations de second type correspondent aux X séquences caractéristiques selon une base biunivoque ; et si la première séquence est une séquence caractéristique des X séquences caractéristiques, au moins l'une de la première signalisation et du premier bloc d'informations est utilisée pour déterminer un format d'informations d'un sous-bloc d'informations de second type, correspondant à la première séquence, dans les X sous-blocs d'informations de second type. Selon le procédé de la présente invention, la réinterprétation d'une signalisation existante évite des surdébits de signalisation supplémentaires, et une commutation flexible entre un accès aléatoire en deux étapes et un accès aléatoire en quatre étapes est également prise en charge.
Patent WO-2021036139-A1 (WO)
Inventor: LIU LEI
IPC: B21J15/32
Filed: 2019-12-30
Abstract: Disclosed is a cartridge-clip rivet feeding mechanism of a flow-drill tightening device, the rivet feeding mechanism comprising: a rivet box; a cartridge (5) used for storing a rivet (2) from the rivet box; a rivet pulling mechanism comprising a rivet pulling block (10), a rivet pulling block guiding housing (11), and a linear driving unit (8, 9) connected to the rivet pulling block (10); and a blowing mechanism comprising a curved connection pipe (15) and a third air inlet (17), wherein the rivet pulling block (10) is provided with a T-shaped through hole that can accommodate the rivet (2), and is used for transferring the rivet (2) from a first connection pipe (3) to a second connection pipe (12); and a first air inlet (6) and a second air inlet (14) are both used for pushing the rivet (2) to move in the connection pipe towards one end of a riveter head. The cartridge-type rivet supply is provided, and the cartridge is mounted on a riveter so as to solve the problem of rivet blocking during the riveting and movement of a riveter body, and to solve the problem of an insufficient riveting airflow. Moreover, the cartridge is filled with rivets during artificial loading, tool clamping, etc., thereby greatly shortening the rivet feeding time in order to improve the production efficiency.
Patent WO-2021012654-A1 (WO)
Inventor: XIA ENPIN
IPC: F25D23/02
Filed: 2020-01-15
Abstract: A refrigerator comprises a container (10), a door (20) for opening and closing the container (10), and a hinge assembly (30) connecting the container (10) and the door (20). The container (10) comprises a rear wall and an opening arranged opposite to each other. A direction in which the rear wall faces the opening is a first direction. In a process of opening the door (20), the hinge assembly (30) drives the door (20) to move away from the container (10) in the first direction. The invention employs the hinge assembly (30) to facilitate opening of the door (20) relative to the container (10), thereby enhancing the smoothness of a door opening operation.
Patent WO-2020173238-A1 (WO)
Title: Train à unités multiples et dispositif d'intégration d'extrémité de châssis associé
Inventor: WANG CHENGQIANG
IPC: B61D35/00
Filed: 2020-01-16
Abstract: L'invention porte sur un train à unités multiples et un dispositif d'intégration d'extrémité de châssis de celui-ci, le dispositif d'intégration d'extrémité de châssis comprenant : une boîte à déchets (1) et des points de levage de la boîte à déchets (3), la boîte à déchets (1) étant une boîte à déchets de forme spéciale ; lorsque la boîte à déchets (1) est installée à une extrémité de châssis de véhicule (2), la boîte à déchets (1) peut être fixée à l'extrémité du châssis du véhicule (2) ; et les points de levage de la boîte à déchets (3) et une poutre de traction (201) à l'extrémité du châssis du véhicule (2) sont formés intégralement. La boîte à déchets (1) est installée à l'extrémité du châssis du véhicule (2) au moyen des points de levage de la boîte à déchets (3), ce qui permet d'élargir l'espace de réception de la boîte à déchets (1) et d'éviter une situation où la force de direction de la transmission des forces longitudinales du châssis du véhicule devient faible.
Patent WO-2021147077-A1 (WO)
Title: Method and apparatus for determining harq-ack codebook, and device and storage medium
Inventor: WU ZUOMIN
IPC: H04W72/04
Filed: 2020-01-23
Abstract: Provided are a method and apparatus for determining a HARQ-ACK codebook, and a device and a storage medium, which all relate to the technical field of communications. The method comprises: generating first feedback information, wherein the first feedback information comprises feedback information of a first physical channel, the first physical channel is a physical channel corresponding to a first hybrid automatic repeat request (HARQ) process on a first cell, the first cell supports a feedback mode based on a code block group (CBG), and the first physical channel does not correspond to a CBG-based transmission mode; and determining a target feedback sequence, wherein the target feedback sequence comprises feedback information sorted on the basis of a HARQ process number in N cells, the N cells comprise the first cell, the feedback information sorted on the basis of the HARQ process number in the N cells comprises the first feedback information, and the N is a positive integer. In the embodiments of the present application, a method for determining a HARQ-ACK codebook when a first physical channel does not correspond to a CBG-based transmission mode, but a first cell supports a CBG-based feedback mode.
Patent WO-2021008146-A1 (WO)
Inventor: LI YUANYANG
IPC: F04B49/06
Filed: 2020-03-11
Abstract: A control method and apparatus for water pumps in an air conditioning system, and an air conditioning system. The control method comprises the following steps: obtaining the number of water pumps currently running in the air conditioning system, and the current speed ratios and the current running lift of the water pumps; calculating a control range of the speed ratios according to the number and the current running lift; determining whether the current speed ratios are in the control range of the speed ratios or not; and if the current speed ratios are not in the control range of the speed ratios, switching the number of water pumps so as to enable the speed ratios of the water pumps to fall within the control range of the speed ratios. According to the control method, the number of water pumps can be switched according to the running number of water pumps and the lift of the water pumps, so that it is guaranteed that the water pumps run in the high-efficiency interval under the full-load working condition, and the purposes of variable-frequency energy-saving control of the water pumps and reduction of running power consumption of the air conditioning system are achieved.
Patent WO-2021189354-A1 (WO)
Inventor: LI JU
IPC: H04B1/74
Filed: 2020-03-26
Abstract: An apparatus, method, and computer-readable recording medium restore functionality of a wireless device. Device settings are continuously stored as a plurality of data sets for the wireless device in a memory of the wireless device. A backup storing operation of the device settings is automatically performed at a predetermined time and on a periodic basis in the memory of the wireless device. When a failure of at least some function of the wireless device is detected, a restore mode is invoked from a user interface of the wireless device. The restore mode is implemented for restoring functionality of the at least some function of the wireless device by replacing device settings of the wireless device at the time of the detected failure with a data set of device settings in the memory stored during the backup storing operation during a previous time period when there was no failure detected.
Patent WO-2021195946-A1 (WO)
Inventor: KAMATA TETSUJI
IPC: H04N5/208
Filed: 2020-03-31
Abstract: An imaging device according to the embodiments of the present disclosure includes an optical lens, wherein an object to be imaged is located at a first side of the optical lens; and an imaging sensor located at a second side of the optical lens which is an opposite side of the first side of the optical lens, wherein a position of 100 percent of an image height H  100 of the object image is located at a corner of the imaging sensor.
Patent WO-2021196130-A1 (WO)
Title: Mise à l'échelle de blocs de transport de canal partagé de liaison descendante et de liaison montante physiques pour des bandes de fréquences choisies
Inventor: XU CHANGLONG
IPC: H04W72/04
Filed: 2020-04-02
Abstract: Des aspects de l'invention concernent la mise à l'échelle de blocs de transport (TB) dans le canal partagé de liaison montante physique (PUSCH) et le canal partagé de liaison descendante physique (PDSCH) pour des bandes de fréquences choisies, telles que des bandes de nouvelle radio sans licence (NR-U) où la puissance autorisée de densité spectrale peut être inférieure.
Patent WO-2021128658-A1 (WO)
Inventor: WENG XIAOLE
IPC: B01D53/70
Filed: 2020-04-14
Abstract: Procédé et dispositif à deux étapes d'hydrolyse-oxydation permettant la dégradation de composés organiques volatils chlorés. Le procédé comprend les étapes suivantes : (1) réalisation d'une hydrolyse et d'une déchloration catalysées sur des composés organiques volatils chlorés à 100-250 °C, de manière à produire HCl et des composés organiques volatils déchlorés ; (2) utilisation d'un agent de déchloration sur le HCl et les composés organiques volatils déchlorés pour éliminer le HCl de ces derniers ; et (3) réalisation d'une oxydation profonde catalytique sur les composés organiques volatils déchlorés à 200-500 °C. Le procédé peut éviter la perte d'activité catalytique résultant de l'empoisonnement au chlore pendant une oxydation à haute température, et peut empêcher le chlore de produire des sous-produits contenant du chlore toxiques dans des conditions de température élevée.
Patent WO-2021047179-A1 (WO)
Inventor: Liu Xuanlu
IPC: G09B23/00
Filed: 2020-04-26
Abstract: 一种长度视错觉实验仪及使用方法。长度视错觉实验仪包括半圆环结构的底壳（1），两侧面分别安装透明板（2）和侧板（3），透明板（2）内侧面转动安装活动板（5），活动板（5）通过定位销（52）相对于透明板（2）固定；活动板（5）上开有贯通的条形槽口（51），位于条形槽口（51）两侧的活动板（5）上均安装导向块（61），两个导向块（61）共同安装抽条（6），使得抽条（6）沿着导向块（61）相对于活动板（5）移动；活动板（5）与侧板（3）之间安装测试板（4），测试板（4）包括径向设置多条黑色线段（411）的第一测试板（41），和纯色的第二测试板（42）。被试者观察透明板（2）上的条状贴纸（22）和从条形槽口（51）处透出的测试板（4），主观判断其长度的一致性，并与实际长度比较，从而获得平行错觉、角度干扰以及颜色对视觉判断的影响，进而展示视错觉的神奇效果和魅力。
Patent WO-2020233625-A1 (WO)
Inventor: LIU QI
IPC: G06Q40/04
Filed: 2020-05-20
Abstract: 一种结合用户类型和判断条件的收据存储方法和节点，该方法包括：第一区块链节点接收经过加密的交易（202）；第一区块链节点在可信执行环境中解密所述交易并执行获得的交易内容，得到收据数据（204）；第一区块链节点存储所述收据数据，当交易发起方属于预设用户类型时，所述收据数据中满足预设条件的收据字段以明文形式存储、其余收据字段以密文形式存储，当交易发起方不属于所述预设用户类型时，所述收据数据以密文形式存储（206）。
Patent WO-2020238731-A1 (WO)
Title: Bicyclic ammonium ion polybenzimidazole, anion exchange membrane, preparation method therefor and use thereof
Inventor: ZHU XIULING
IPC: H01M8/1072
Filed: 2020-05-21
Abstract: Disclosed are a bicyclic ammonium ion polybenzimidazole, an anion exchange membrane, and a preparation method therefor and the use thereof, which belong to the technical field of polyelectrolytes and ion exchange membranes. The method involves firstly synthesizing a halogenated spiro ammonium salt, then introducing halogenated spiro ammonium into the molecular chain of polybenzimidazole by means of a grafting reaction, so as to synthesize bicyclic ammonium ion polybenzimidazole, which is subjected to basic ion exchange to prepare a bicyclic ammonium ion polybenzimidazole anion exchange membrane. The bicyclic ammonium ion polybenzimidazole anion exchange membrane prepared according to the method has a good polymer film formation property, a high ionic conductivity, significantly improved mechanical properties and alkali resistance stability, and a good dimensional stability, and can be widely used in fields related to ion exchange membranes, such as fuel cells, flow cells, water electrolysis and electrodialysis, seawater desalination, etc.
Patent WO-2021109492-A1 (WO)
Inventor: ZHAO DEZHI
IPC: G05F1/56
Filed: 2020-05-26
Abstract: 电压调节电路及超声设备。电压调节电路包括DC‑DC转换电路（1）、正线性稳压器（2）、负线性稳压器（2）及压差调控电路（4）。本申请的电压调节电路可以抑制DC‑DC转换电路（1）的输出电压中的干扰信号，以为超声设备中的发射芯片提供稳定电源，从而提升超声设备成像效果。
Patent WO-2021004185-A1 (WO)
Inventor: ZHOU WENCHAO
IPC: B22F3/105
Filed: 2020-05-28
Abstract: Provided is a method for gradient regulation and control of a technological parameter in an additive manufacturing process. The method comprises the following steps: slicing a model and layering same, filling a laser scanning path of each layer, and completing additive manufacturing of a first layer of the model at a power P1 to obtain the temperature T1 of a point A1; completing additive manufacturing of a second layer of the model at a power P2, wherein P2 = P1, and the temperature T2 of a point A2 is obtained; determining the temperature value between the two adjacent layers, wherein if T2 ≠ T1, the laser power is adjusted to enable P3 = P2-(T2-T1)*△P, and then carrying out a printing procedure of a next layer at a power P3, wherein △P is an interlayer laser power increment; and repeating the above-mentioned steps until T(n) = T(n-1), and obtaining a stable laser power parameter Pn at that moment, wherein Pn = P(n-1)-(T(n-1)-T(n-2))*△P, and Pn is used as the final laser processing parameter to complete workpiece printing. The method provided can solve the problem of unstable formation brought about by the cumulative effect of heat in a layer-by-layer printing process in the existing laser additive manufacturing technology.