baber/WOPTO huggingface dataset:
Patent WO-2021174592-A1 (WO)
Inventor: Zou Xixi
IPC: H02K37/14
Filed: 2020-03-17
Abstract: Provided in the present application is a stepper motor, the motor comprising: a housing and a stator and a rotor that are accommodated within the housing; the stator is disposed surrounding the rotor; the rotor comprises a magnetically conductive housing and a rotor pole that is sleeved on the magnetically conductive housing and that is an annular shape; the magnetically conductive housing comprises a circular bottom wall, a side wall that extends upward from an edge of the bottom wall, and a top wall that extends from a top end of the side wall toward the center near to an end cap, and a rotary shaft; and the rotor pole is disposed on the side wall. By providing a hollow rotor, the goal of reducing the rotor moment of inertia, increasing self-starting frequency, improving work frequency reverse drive (locked-rotor performance), and reducing costs may be attained while not reducing the output torque of a motor.
Patent WO-2021184208-A1 (WO)
Inventor: TSAI HSIUNG-YU
IPC: G02B13/06
Filed: 2020-03-17
Abstract: 本申请涉及一种摄像镜头、取像装置、电子装置及驾驶装置。摄像镜头沿着光轴由物侧至像侧依序包括具有负屈折力的第一透镜，第一透镜的物侧面近光轴处为凸面，像侧面近光轴处为凹面；具有屈折力的第二透镜，第二透镜的物侧面为凹面；具有正屈折力的第三透镜；具有负屈折力的第四透镜；具有正屈折力的第五透镜；具有屈折力的第六透镜；以及光阑，光阑设于摄像镜头的物侧或第一透镜与第四透镜之间。上述摄像镜头在满足特定关系时，具备高像素、大视角以及景深范围广的特点。
Patent WO-2021189331-A1 (WO)
Title: 显示基板和显示装置
Inventor: YANG LULU
IPC: H01L27/32
Filed: 2020-03-25
Abstract: 一种显示基板（100）和显示装置（400）。显示基板（100）包括衬底基板（110）、第一栅极层（130）、第二栅极层（140）和第一导电层（150）；第一栅极层（130）包括沿第一方向延伸的复位信号线（131）和第一电极块（CE1），第二栅极层（140）包括第二电极块（CE2），第二电极块（CE2）被配置为与第一电极块（CE1）形成存储电容，第一导电层（150）包括沿第二方向延伸的电源线（151），复位信号线（131）与电源线（151）具有第一交叠区域（351），第二电极块（CE2）与电源线（151）具有第二交叠区域（352），位于第一交叠区域（351）的电源线（151）的宽度小于位于第二交叠区域（352）的电源线（151）的宽度，第一方向与第二方向相交。由此，显示基板（100）可降低复位信号线（131）的负载，从而可提高像素驱动电路的充电时间，进而提高该显示基板（100）的显示效果。
Patent WO-2020192746-A1 (WO)
Inventor: LIU SIHU
IPC: B60H1/32
Filed: 2020-03-27
Abstract: A roof-mounted unit for a roof-mounted air conditioner. The roof-mounted unit is provided on an outer wall surface of a roof. The roof-mounted unit comprises an upper cover and a base plate assembly (1), the base plate assembly (1) comprising a base plate (2) and a covering member (3). When the upper cover is mounted on the base plate assembly (1) and the roof-mounted unit is provided on the roof, the covering member (3) covers at least a part of the surface of the base plate (2) exposed outside the upper cover and the roof. The roof-mounted unit uses a new base plate assembly (1), i.e. the combination of the base plate (2) and the covering member (3) covered thereon, so that the base plate which uses a non-metallic material, such as an EPP foam material, can pass a ball pressure test due to the presence of the covering member, thereby realizing the light weight of the base plate so as to reduce the weight of the roof-mounted unit for cases which are in compliance with the safety rules, which is beneficial to the mounting of the roof-mounted unit on the roof. The present invention also relates to a roof-mounted air conditioner, which is a roof-mounted air conditioner for a vehicle.
Patent WO-2020200101-A1 (WO)
Inventor: SONG YANG
IPC: H04L5/00
Filed: 2020-03-27
Abstract: 本公开实施例公开了一种信道处理方法、装置、终端设备及介质。该方法包括：确定组公共group-common下行控制信息DCI指示信息对应的目标信息，目标信息包括发送接收点TRP或控制资源集CORESET；按照group-common DCI指示信息的指示以及目标信息，对信道进行处理。
Patent WO-2020192771-A1 (WO)
Title: Inner guide type rail switch and rail transit system having same
Inventor: XIAO XIAOBIN
IPC: E01B7/18
Filed: 2020-03-27
Abstract: Disclosed are an inner guide type rail switch (100) and a rail transit system (1000) having same. The inner guide type rail switch (100) comprises a fixed beam (1) and a movable beam (2). The fixed beam (1) defines four passages, the movable beam (2) includes six moving beams, and the four passages are switched through combined movement of the six moving beams.
Patent WO-2020211744-A1 (WO)
Inventor: ZHENG LIFENG
IPC: H01F5/00
Filed: 2020-04-14
Abstract: 一种膨胀阀线圈组件，包括线圈单元（10）以及外壳（20）；线圈单元（10）上设置有安装平台（110），安装平台（110）上局部凸出设有连接部（100），外壳（20）套设于连接部（100），并与安装平台（110）固定连接；连接部（100）的侧壁呈凹凸结构设置，外壳（20）的内侧与连接部（100）之间填充有密封材料。
Patent WO-2020233312-A1 (WO)
Inventor: ZHANG JIYI
IPC: F24F13/14
Filed: 2020-04-20
Abstract: 本发明涉及空调器技术领域，具体涉及一种空调器及用于空调器制冷的导风板控制方法。本发明的空调器包括壳体和导风板组，导风板组包括第一导风板，壳体上设置有出风口，第一导风板以可转动的方式设置于壳体上以便能够封堵或打开出风口；导风板组还包括第二导风板，第二导风板以嵌入的方式设置于第一导风板上且能够相对于第一导风板非同轴转动；本发明的控制方法包括：在空调器处于制冷工况的情形下，使第二导风板相对于第一导风板转动至闭合位置；使第一导风板转动至设定位置；使第一导风板在设定角度范围内来回转动。本发明的控制方法在保证了气流的强度和速度的同时，通过使第一导风板来回摆动以改变气流方向，从而扩大送风范围，保证制冷效果。
Patent WO-2021022842-A1 (WO)
Inventor: Xiang Shuyuan
IPC: B65H75/42
Filed: 2020-04-27
Abstract: Disclosed is a carrier trolley with a towed wire, the carrier trolley comprising a conveyor belt (1, 2) arranged at the top of the carrier trolley, with a length direction of the conveyor belt being parallel to a length direction of the trolley; a winder (7) arranged in the carrier trolley, wherein an opening of the winder is provided in the bottom of the carrier trolley, the orientation of the opening of the winder and a horizontal plane form an acute included angle therebetween, a fixed pulley (11) is further arranged at the bottom of the carrier trolley, a wire led out of the winder is externally tangential to the fixed pulley and then extends in a horizontal direction, the wire is redirected by the fixed pulley and then creates obtuse-angle bending, and the winder has elastic potential energy for retracting the wire; a ground groove (9) embedded in a ground surface, with the wire being horizontally accommodated in the ground groove, and the depth of the ground groove being greater than the diameter of the wire; and a traveling wheel arranged at the bottom of the carrier trolley, with the traveling wheel being in contact with the ground surface and driving the carrier trolley to travel in a direction parallel to the ground groove. According to the carrier trolley, a wire is automatically wound, thereby preventing the wire from being stuffed into a ground groove and preventing the wire from tangling or making other personnel stumble, and the pulling resistance of the wire is small.
Patent WO-2021217392-A1 (WO)
Title: 红外图像降噪方法、装置及设备
Inventor: YAN LEI
IPC: G06T5/00
Filed: 2020-04-28
Abstract: 一种红外图像降噪方法、装置及设备。该方法包括：获取红外拍摄装置拍摄得到的第一红外图像帧和第二红外图像帧，对第一红外图像帧进行空域滤波得到第一降噪图像，基于第一红外图像帧和第二红外图像帧进行时域滤波得到第二降噪图像，对第一降噪图像和第二降噪图像进行融合得到第三降噪图像，并根据第三降噪图像得到第一红外图像帧的降噪红外图像。本申请提高了红外图像的噪声滤除效果。
Patent WO-2021142972-A1 (WO)
Title: Blockchain-based rolling-ball lottery method and system, electronic device, and storage medium
Inventor: LIU ENKE
IPC: G06F7/58
Filed: 2020-04-29
Abstract: A blockchain-based rolling-ball lottery method and system, an electronic device, and a computer-readable storage medium, relating to the technical field of blockchains. In the rolling-ball lottery method, the inviter and participants each provide a random number, a sequence table of the participants is made, next, the random numbers are subjected to an XOR operation or a sum operation, and then, the operation results or hash values of the operation results and the number of participants in the sequence table are subjected to a remainder operation, the value obtained by the remainder operation being the serial number of the participant selected by the rolling-ball lottery method in a current round. The final results obtained by the rolling-ball lottery method are completely determined by random numbers, the change of any random number will lead to the change of the final selection results, and only by controlling all the random numbers can the final selection results be specified, such that the inviter can be prevented from tampering the results of a tender, thereby improving the fairness of the tender.
Patent WO-2021226801-A1 (WO)
Title: Imaging apparatus and mobile terminal
Inventor: YANG CHENGSIOU
IPC: G02B5/20
Filed: 2020-05-11
Abstract: Provided in the present application is an imaging apparatus, comprising: a circuit board; at least one camera module arranged on one side of the circuit board; a switching module arranged on the side of the camera module furthest from the circuit board, the switching module comprising at least one optical element; a stepper motor connected to the switching module and used for driving the switching module to rotate; and a motor drive circuit electrically connected to the circuit board and used for driving the stepper motor to thereby control the relative position of the at least one optical element relative to the at least one camera module. The present imaging module can precisely control the angle of rotation of the stepper motor and improve the diversification of image effects. Also provided in the present application is a mobile terminal comprising the imaging apparatus.
Patent WO-2021042791-A1 (WO)
Inventor: STEVE SAAD
IPC: A61M16/06
Filed: 2020-06-05
Abstract: 一种采用用独特方法制成的气囊作为气垫的麻醉面罩及其制作方法。麻醉面罩包括上盖(1)、气垫(2)、气阀(3)；气垫(2)是由吹塑工艺制成的薄而柔软的A、B两片塑料薄膜(5,6)叠加，用预制的内圈轮廓与人脸口鼻轮廓相符的不规则圆环形气垫模具将A、B两片薄膜(5,6)熔接在一起，形成环形气囊(20)再充气后制成的；气垫模具的截面形状根据环状气囊(20)的形状设计制作，环状气囊(20)的内圈轮廓根据人脸部口鼻轮廓设计而成；A片薄膜(5)的上表面与上盖(1)底部粘接，气阀(3)安装在上盖(1)的气阀安装孔(4)中，A片薄膜(5)上设与气阀(3)相通的小孔。环形气囊(20)充气后形成环形圈气垫，该环形圈气垫与病人接触的一圈可与病人面部紧密贴合。该麻醉面罩具有高气密性、可快速安装、高舒适性、高经济型的特点。
Patent WO-2021017672-A1 (WO)
Title: Bandwidth increasing and reducing method and apparatus, storage medium, and electronic apparatus
Inventor: ZHAN ZHIGUO
IPC: H04W28/20
Filed: 2020-06-16
Abstract: Provided in the present disclosure are a bandwidth increasing and reducing method and apparatus, a storage medium, and an electronic apparatus, the bandwidth increasing method comprising: each node acquires a time slot increase request according to a first specified rule, the time slot increase request being used for instructing each node to start a time slot adjustment of a section layer within a predetermined period of time; when each node can process the time slot increase request, each node sends a time slot increase confirmation message according to a second specified rule; on the basis of the time slot increase confirmation message, each node increases the first section layer time slots between each two nodes; after the increase of first section layer time slots is complete, each node increases the bandwidth of the entire path layer corresponding to each node. The aforementioned solution solves the problems in the prior art of imperfect bandwidth adjustment methods and being unable to implement lossless bandwidth adjustment in metropolitan area transmission networks.
Patent WO-2021036539-A1 (WO)
Title: 实木地板电热系统及其安装方法
Inventor: ZHOU ZHAOBING
IPC: E04F15/18
Filed: 2020-07-10
Abstract: 本发明公开一种结构设计简单，制造工艺简单，安装便捷，质量稳定，安全环保的实木地板电热系统及安装方法，实木地板电热系统包括实木地板、发热体、发热体槽、导热连接条、隔热材料；实木地板下表面开有横向凹槽，两侧有向上且向地板中心部延伸的三角榫槽；纵向端部加工有平口榫头和平口榫槽；导热连接条上部中间低，两侧上翘部分伸入横向相邻的两块实木地板上的三角榫槽内；导热连接条底部嵌入发热体槽中，并与位于发热体槽中的发热体接触；实木地板下部和发热体槽下部有隔热材料。安装方法的步骤：地面找平、隔热材料铺放、发热体槽固定、发热体布设、实木地板纵向预对接成实木地板条、导热连接条嵌入实木地板条的一侧、四联固定、外接电源。
Patent WO-2022016386-A1 (WO)
Title: Camera device
Inventor: LIN CHIAYI
IPC: G03B17/56
Filed: 2020-07-21
Abstract: A camera device (50), comprising a camera body (52), a fixed frame (54), and an orientation adjusting mechanism (100). The orientation adjusting mechanism (100) connects the camera body (52) to the fixed frame (54), and adjusts the camera body (52) to a required orientation relative to the fixed frame (54). The orientation adjusting mechanism (100) comprises a joint housing (101), a pressing member (102), a ball joint (103), an adjusting member (104), and a connecting member (105). The joint housing (101) is fixedly connected to the camera body (52) and has a stop surface (101a). The pressing member (102) is movably provided within the joint housing (101). The ball joint (103) is located between the stop surface (101a) and the pressing member (102). The adjusting member (104) is coupled to the joint housing (101) and the pressing member (102), and drives the pressing member (102) to move towards the stop surface (101a) relative to the joint housing (101) to limit the rotation of the ball joint (103) relative to the stop surface (101a). One end of the connecting member (105) is fixedly connected to the ball joint (103), and the other end of the connecting member (105) is connected to the fixed frame (54).
Patent WO-2021128822-A1 (WO)
Title: 一种中性双线笔芯
Inventor: XU YAPING
IPC: B43K27/08
Filed: 2020-07-22
Abstract: 一种中性双线笔芯，包括依次连接的墨水管（1）、连接件（2）和笔头（3），连接件（2）内设置左通道（4）和右通道（5）双墨水通道，左通道（4）和右通道（5）间通过隔层（8）隔开，左通道（4）和右通道（5）的前端分别连通有墨水管（1），左通道（4）和右通道（5）的末端分别连通有笔头（3）。
Patent WO-2022021012-A1 (WO)
Inventor: XU QIANG
IPC: G16H70/40
Filed: 2020-07-27
Abstract: A computer-implemented method of determining effects of drug combinations on treatment outcomes. A plurality of genomic and clinical variables are generated from the combination of comprehensive genomic data, EHR data, and clinical treatment data. Based on Cox Proportional Hazards model, independent risk factors, cumulative hazard-ratios, and p-values for the combination of a first drug and a second drug (or a biomarker) are calculated to determine the nature of the combination of the first drug and the second drug (or the biomarker) with respect to treating the disease.
Patent WO-2021018191-A1 (WO)
Inventor: SUN PIAOYANG
IPC: C12N15/13
Filed: 2020-07-29
Abstract: 本公开涉及IL-17拮抗剂治疗自身免疫疾病的方法。本公开中涉及一种IL-17A结合物在制备治疗自身免疫系统疾病，如类风湿关节炎、强直性脊柱炎、银屑病的药物中的用途，具体而言，提供一种治疗炎症或自身免疫系统疾病的方法，包括向患者施用有效量的IL-17结合物，给药频率低于一周一次。
Patent WO-2021237936-A1 (WO)
Title: Ims registration method, storage medium, and electronic terminal
Inventor: DU KAI
IPC: H04W60/00
Filed: 2020-08-04
Abstract: Disclosed in the present application are an IMS registration method, a storage medium, and an electronic terminal. The method comprises: sending an IMS registration request to a core network, so that the core network detects, according to the IMS registration request, whether an electronic terminal has activated an IMS service, and feeds back a detection result; receiving the detection result fed back by the core network; and determining, according to the detection result, whether to trigger an IMS registration process.
Patent WO-2021027704-A1 (WO)
Title: 多肽或其衍生物的应用
Inventor: WEI DE
IPC: A61P35/00
Filed: 2020-08-07
Abstract: 一种多肽或其衍生物的应用，具体提供了抗肿瘤多肽类药物(如SEQ ID No.1所示的氨基酸序列，如SEQ ID No.1所示的氨基酸序列经缺失、替换、添加和/或修饰一个或多个氨基酸获得的氨基酸序列)，在药物靶点特异性、药物生物活性、药物毒副反应、治疗成本等各方面均具有显著优势。基于对肿瘤微环境形成与稳态维持涉及的细胞因子，设计可以抑制肿瘤细胞的活性和肿瘤的转移的多肽或其衍生物，并进一步将该多肽或其衍生物应用于制备抗肿瘤药物。
Patent WO-2021139155-A1 (WO)
Title: Electromagnetically driven liquid atomization apparatus
Inventor: HAN YI
IPC: A24F40/42
Filed: 2020-08-12
Abstract: An electromagnetically driven liquid atomization apparatus, comprising an atomization core (2) and an electromagnetic driving unit (31); the atomization core (2) comprises a liquid storage chamber (21) and an electric heating component (22); the electric heating component (22) is disposed above a droplet release hole (2121) such that the electric heating component surface (221) is opposite to and kept at a certain distance from the droplet release hole (2121); the electromagnetic driving unit (31) is disposed at the bottom of the atomization core (2). The present electromagnetically driven liquid atomization apparatus is small in size, provides metered liquid, and allows for small volume liquid atomization. The droplet forming process and the liquid surface are controllable and the problem of liquid leakage is avoided.
Patent WO-2022011768-A1 (WO)
Title: Intelligent livestock farm management system and intelligent livestock farm management method
Inventor: HUANG MINKAI
IPC: G05B19/418
Filed: 2020-08-13
Abstract: An intelligent livestock farm management system and method. The intelligent livestock farm management system comprises a plurality of device controllers (30), a network connection device (20) and a system processor (10), wherein the device controllers (30) are configured to control a livestock farm device (100) on the basis of a control instruction; the network connection device (20) and each device controller (30) form a network, and the network connection device (20) is in a communication connection with each device controller (30) by means of the network; and the system processor (10) is in a communication connection with the network connection device (20), and the system processor (10) transmits, to the device controller (30) and by means of the network connection device (20), the control instruction corresponding to the livestock farm device (100), and controls the working state of the livestock farm device (100) by means of the device controller (30).
Patent WO-2022040954-A1 (WO)
Title: Ar spatial visual three-dimensional reconstruction method controlled by means of gestures
Inventor: CHEN YU
IPC: G06F3/01
Filed: 2020-08-26
Abstract: An AR spatial visual three-dimensional reconstruction method controlled by means of gestures, comprising the following steps: 1: an AR glasses camera and a depth camera C1 are jointly calibrated; 2: a bounding box surrounding a target object is determined by means of gesture interaction; 3: three-dimensional reconstruction is started; 4: a client performs visualization while implementing virtual reality registration; 5: a user pauses the three-dimensional reconstruction process by means of a gesture, and views current three-dimensional reconstruction progress. 6: the target object is moved and rotated to a new observation angle, and then a three-dimensional reconstruction algorithm is re-started by means of a gesture; and 7: the three-dimensional reconstruction algorithm is terminated by means of a gesture, and a virtual model is outputted. In the described method, the current result of three-dimensional reconstruction can be seen at an AR end in real time by means of an AR spatial visual three-dimensional reconstruction method controlled by means of gestures, and a natural human gesture motion on the basis of a gesture sensor is used to control a reconstruction flow.
Patent WO-2021077902-A1 (WO)
Title: Fan speed regulation system and method
Inventor: ZHANG YUANJIA
IPC: F04D27/00
Filed: 2020-08-31
Abstract: A fan speed regulation system and method. The system comprises a monitoring board (10), a signal back board (20), at least one temperature sensor array (30), at least one fan collection board (40), and at least one fan array (50), the monitoring board (10), the temperature sensor arrays (30), and the fan collection boards (40) are in communication connection with the signal back board (20), the fan collection boards (40) are in communication connection with the fan arrays (50), the monitoring board (10) or the fan collection boards (40) are used for calculating the rotating speeds of the fan arrays (50) according to temperature information and a preset speed regulation manner and generating corresponding rotating speed control information, the signal back board (20) is used for transmitting information, the temperature sensor arrays (30) are used for acquiring temperature information of a single board in a network device, the fan collection boards (40) are further used for adjusting the rotating speed of each fan in the fan arrays (50) according to the rotating speed control information, and the fan arrays (50) are used for dissipating heat of the network device.
Patent WO-2022047670-A1 (WO)
Title: Method for processing data packet, and communication apparatus
Inventor: LIU CHENGWEI
IPC: H04W28/02
Filed: 2020-09-02
Abstract: The present application provides a method for processing a data packet, and a communication apparatus. A reorder buffer duration threshold is set in a PDCP layer; during operation of a reorder timer, once a reorder duration exceeds the reorder buffer duration threshold, the PDCP layer is triggered to execute a delivery process of a data packet within a receive window. In addition, after the reorder timer expires, the PDCP layer receives the data packet falling outside the receive window, and does not discard the data packet any more but directly delivers same to an application layer. In addition, the PDCP layer separately maintains state variables RX_NEXT of two paths in a DC scenario, and updates a state triggering reorder to a smaller value of RX_NEXT on the two paths when the reorder timer is started. By optimizing reordering of the PDCP layer and a sequential delivery function, a packet loss rate outside the receive window of the PDCP layer and a transmission delay of the data packet can be reduced.
Patent WO-2022052068-A1 (WO)
Inventor: ZHOU XIAOZHOU
IPC: G06F30/28
Filed: 2020-09-11
Abstract: 一种基于目标可用模型的环境预测方法、装置、程序及其电子设备。基于预先确定的环境数据生成训练样本，采用训练样本基于流体力学模型和高斯模拟模型进行训练，获得目标可用模型（S101）。在污染扩散发生时，只需要在目标可用模型中直接输入当前实际的环境数据，就可以确定出在标定位置（B1-B4，S1-S5）下的与时间相关的污染浓度序列的实际预测值（S102），从而实现快速且准确的污染扩散预测。
Patent WO-2021063291-A1 (WO)
Inventor: ZHAO FENGYU
IPC: H04W4/08
Filed: 2020-09-27
Abstract: Disclosed are a method, device, and system for updating a user-plane path, related to the field of communications, for implementing the transmission of data of a one-to-many communication service in an efficient, accurate, and system resource-saving manner for group terminals having moved, ensuring the effectiveness of the one-to-many communication service, and increasing the communication quality of the one-to-many communication service. The method comprises: a first session management functional network element acquires information of a first service area; acquires an identifier of a first user-plane functional network element on the basis of the information of the first service area, the first user-plane functional network element being used for providing a data transmission service of a one-to-many communication service to the first service area; and transmits the identifier of the first user-plane functional network element to a first network element, for use by the first network element in updating a user-plane path.
Patent WO-2021023314-A1 (WO)
Inventor: OUYANG LIUZHANG
IPC: B01J31/12
Filed: 2020-09-29
Abstract: The present invention relates to the technical field of clean energy, and discloses a method for using a hydride at room temperature to convert a carbonate to produce methane. Specifically, the following steps are comprised: in a protected atmosphere, placing a carbonate and a hydride in a ball mill, and at room temperature, using the ball mill to perform a ball milling reaction and then obtaining a methane gas. The present invention achieves the goal of conversion of a carbonate into methane at room temperature. By means of the reaction between the hydride and the carbonate, methane is generated and stored, providing a novel method for reasonable usage of carbonates. The hydride is used to substitute H2, thus simultaneously avoiding the the problem of H2 being unsafe. A solid product nanoscale Ni produced in situ in the process of reacting the hydride in the ball mill has a smaller grain size, and can be compared to traditional catalysts as a catalyst for the carbonate methanation reaction. Said catalyst has a higher catalytic activity in the conditions of a room temperature ball mill, and at the same time, a metal hydride can be re-obtained from the solid product by means of hydrogen absorption by hydrogenation, thus allowing for cyclical usage of the hydride.
Patent WO-2022073213-A1 (WO)
Title: Mechanism for dynamic authorization
Inventor: ADAM IRIS
IPC: H04W4/44
Filed: 2020-10-09
Abstract: Example embodiments of the present disclosure relate to dynamic authorization. According to embodiments of the present disclosure, a solution for dynamic access control to data is proposed. On receiving data registration from a data source, a first device checks the data types to be produced by the data source and adds policies for the data or updates existing policies for the data according to its property. It also serves as access control decision point to determine consumers'access rights based on centrally managed policies. Authorization for data access is granted/denied according to local attributes/policies. In this way, it achieves a dynamic, context-aware and risk-intelligent access control to different kind of data from various data sources (i.e., service producers).