baber/WOPTO huggingface dataset:
Patent WO-2020082299-A1 (WO)
Inventor: WANG SHUXIN
IPC: A61B17/00
Filed: 2018-10-25
Abstract: Provided is a surgical robot mechanism with single-port and multi-port minimally invasive operation functions, the surgical robot mechanism comprising: a support (200); and a slave manipulator mechanism (100) connected to the support (200), with the slave manipulator mechanism (100) being supported by the support (200). The slave manipulator mechanism (100) comprises: a supporting arm (140) capable of moving along the support (200); a function switching frame (110) fixed on the supporting arm (140) and used for switching the surgical robot mechanism between a single-port minimally invasive operation mode and a multi-port minimally invasive operation mode; multiple posture adjustment arm assemblies (120) connected to the function switching frame (110) and used for adjusting the position and posture of surgical tools; and multiple surgical tools (130) respectively connected to the multiple posture adjustment arm assemblies (120) and used for performing an operation.
Patent WO-2019242235-A1 (WO)
Title: 混音方法、装置及存储介质
Inventor: Wan Jingxuan
IPC: G10H1/00
Filed: 2018-11-27
Abstract: 一种混音方法、装置及存储介质，该方法包括：获取混音素材（101）；确定目标音频的节拍特征（102）；根据目标音频的节拍特征，对混音素材进行节拍调整（103）；根据节拍调整之后的混音素材，对目标音频进行混音处理（104）。由于节拍特征是指目标音频中采用的节拍和时间点信息之间的对应关系，由此该方法可以保留目标音频的原有旋律，有利于混音方法的推广。
Patent WO-2019114569-A1 (WO)
Title: 用于电子装置的虹膜识别组件及具有其的电子装置
Inventor: ZHOU YIBAO
IPC: G06K9/00
Filed: 2018-11-30
Abstract: 一种用于电子装置的虹膜识别组件(100)和具有其的电子装置(300)，虹膜识别组件(100)包括：主板(110)、红外灯(120)、虹膜摄像头(130)和盖板(140)，红外灯(120)与主板(110)连接且位于第一表面(111)；虹膜摄像头(130)与主板(110)连接，虹膜摄像头(130)位于第一表面(111)且与红外灯(120)间隔开设置；盖板(140)具有第一透光部(141)，第一透光部(141)与红外灯(120)相对，第一透光部(141)上设有贴纸(1410)，所述贴纸上具有第一涂层(1411)，第一涂层(1411)被构造成允许红外灯(120)发射的红外光线穿透且阻止可见光穿透。
Patent WO-2020113583-A1 (WO)
Inventor: TAN JIE
IPC: G06F1/16
Filed: 2018-12-07
Abstract: 一种智能支架以及模式启动的方法，用于实现简化智能支架的电路结构，提升模式启动的效率。智能支架包括第一接口(201)、第二接口(202)和通信芯片(203)；第一接口(201)连接终端，第二接口(202)连接供电设备；当供电设备通过第二接口(202)与第一接口(201)间的供电线路向终端供电时，通信芯片(203)接收终端发送的访问信号，访问信号用于终端获取智能支架的身份识别ID信息，以使得终端在ID信息和终端中的预置标识信息匹配时，启动目标模式。
Patent WO-2020082591-A1 (WO)
Inventor: PIAO YUANDE
IPC: C03B33/02
Filed: 2018-12-27
Abstract: Disclosed is panel cutting apparatus, comprising a cutting head (11) and air flotation guide rails (12), wherein the air flotation guide rails (12) enable the cutting head (11) to move in a predetermined direction. Since the air flotation guide rails (12) slide in a non-contact manner, the air flotation guide rails (12) are subjected to less abrasion, and the problem of a panel being cut unsatisfactorily by the cutting head (11) due to guide rail abrasion can be avoided. In addition, the air flotation guide rails (12) are subjected to less abrasion, so that the service life of the guide rails can be prolonged, the manufacturing accuracy of the guide rails can be maintained for a long time, and the maintenance work can be reduced.
Patent WO-2019144768-A1 (WO)
Title: Network registration mode switching method and terminal
Inventor: SUN XIBO
IPC: H04W60/00
Filed: 2018-12-29
Abstract: Disclosed in the embodiments of the present application is a network registration mode switching method, which is used by a terminal to reduce interoperation time delay and save system resources. The method in the embodiments of the present application comprises: when a terminal detects a first communication network, the terminal sends a first registration request to a core network device of the first communication network; the terminal receives a first registration result sent by the core network device of the first communication network, the first registration result comprising indication information about whether a network interface exists between the core network device of the first communication network and a core network device of a second communication network; the terminal completes switching between a single registration mode and a dual registration mode according to the indication information, the single registration mode being a mode in which the terminal is registered in the first communication network or in the second communication network, and the dual registration mode being a mode in which the terminal is registered in at least one of the first communication network and the second communication network.
Patent WO-2019144786-A1 (WO)
Title: Wireless information subscription method, related devices and system
Inventor: ZHANG BIAO
IPC: H04W8/20
Filed: 2019-01-03
Abstract: The embodiments of the present application provide a wireless information subscription method, related devices and system. The method mainly comprises: a call session control function (CSCF) obtains the identifier of a management function device at the location of a user equipment, and then sends a wireless information subscription message to the management function device by means of a servitization interface, said message being used for subscribing wireless information of the user equipment, and the wireless information subscription message carrying the identifier of the user equipment. The CSCF receives, by means of the servitization interface, the wireless information of the user equipment sent by the management function device, so that the CSCF can provide a related IMS service (such as an IP voice service) or billing for the user equipment accessing a 5G core network according to the received wireless information.
Patent WO-2019144906-A1 (WO)
Title: Information conversion method and device, storage medium and electronic device
Inventor: XIE JUN
IPC: G06F17/28
Filed: 2019-01-24
Abstract: An information conversion method and device, a storage medium and an electronic device. The method comprises: a hardware device acquiring a source information vector sequence corresponding to source information to be converted; the hardware device determining, successively according to the source information vector sequence and historical conversion result information, a target source information object to be converted; the hardware device querying a pre-configured mapping list for a target source information object combination contained in the source information; where the target source information object combination is found, the hardware device acquiring, from a mapping table, target combination conversion result information corresponding to the target source information object combination; and the hardware device acquiring target conversion result information corresponding to the target source information object according to the target combination conversion result information. The method solves the technical problem of poor information conversion flexibility in the relevant art.
Patent WO-2019149143-A1 (WO)
Title: Link bandwidth utilization rate acquisition method and device, and terminal
Inventor: ZHANG HEFENG
IPC: H04L12/26
Filed: 2019-01-25
Abstract: Disclosed in an embodiment of the application is a link bandwidth utilization rate acquisition method and device, and a terminal, the method comprising: acquiring service data in a link; determining, on the basis of the service data, a service type of a service; and, on the basis of a preset bandwidth inspection rule and the determined service type, calculating a link bandwidth utilization rate.
Patent WO-2020062744-A1 (WO)
Title: 视频水印添加方法以及装置、电子设备及存储介质
Inventor: GUO HE
IPC: H04N19/467
Filed: 2019-01-25
Abstract: 公开了一种视频水印添加方法、装置、电子设备及存储介质，其中，所述方法包括：将目标视频帧的图像数据从RGB格式转换到YUV格式；在所述YUV格式下，为所述目标视频帧上与待添加水印的形状对应的像素点的像素值叠加预设数量的偏移值；将叠加所述偏移值后的目标视频帧进行编码。
Patent WO-2020037956-A1 (WO)
Title: Window air conditioner
Inventor: LIU YU
IPC: F24F13/32
Filed: 2019-01-31
Abstract: Disclosed is a window air conditioner (100). The window air conditioner (100) is mounted at a mounting port (201) of a wall body (200), and a movable window (300) is provided at the mounting port (201). The window air conditioner (100) comprises: a housing (1), wherein the housing (1) comprises a box body (10); the box body (10) comprises an outdoor part (11) and an indoor part (12); the outdoor part (11) and the indoor part (12) are arranged at an interval so as to define an accommodation groove (a); and the window (300) is adapted to be placed in the accommodation groove (a); and a positioning device (2), wherein the positioning device (2) has a locking state and an unlocking state; and when in the locking state, the positioning device (2) is extended into the accommodation groove (a), and cooperates with the window (300) to position the window (300), and when in the unlocking state, the positioning device (2) is disengaged from the window (300).
Patent WO-2019165927-A1 (WO)
Inventor: WANG XI
IPC: D06F39/08
Filed: 2019-02-21
Abstract: The present invention belongs to the field of washing machine and specifically relates to a washing tub and a washing machine having the same. The washing tub con contain washing water; a side wall of the washing tub has a drainage outlet for discharging the washing water in the washing tub during dehydrating process, and the drainage outlet has a water guiding portion for guiding the washing water in the drainage outlet to be quickly discharged. The beneficial effect of the present invention is that by providing a water guiding portion, the washing water entered into the drainage outlet can be quickly discharged, under the guidance of the water guiding portion, along the drainage outlet, and there is no need to reduce the revolving speed of the washing tub to discharge the washing water. Therefor, the water is discharged smoothly, which reduces the loss of the motor that drives the rotation of the washing tub and decreases the vibration and noise of the whole machine.
Patent WO-2020155282-A1 (WO)
Inventor: SONG YAJIE
IPC: A61J15/00
Filed: 2019-03-01
Abstract: 一种营养泵、输液器、控制阀及液体控制方法。营养泵包括泵体（1）和输液器，所述输液器包括控制阀（10），所述泵体（1）上安装有泵轮（34）；所述控制阀（10）包括阀体和能够与该阀体配合连接的阀芯（100），所述阀体包括用于与待输液体连接的第一输入管（113）和第二输入管（114）、筒状结构（111）以及用于将待输液体输出的输出管（115），所述转接轴（27）的一端与电机（35）连接，另一端与所述阀芯（100）连接以使电机（35）通过转接轴（27）带动阀芯（100）转动。本营养泵可以实现两种液体的自由切换，消除营养泵喂养过程中的串液风险，且成本低、精度高。
Patent WO-2019185008-A1 (WO)
Title: Multiplexing ul transmissions with different reliabilities
Inventor: SALIM UMER
IPC: H04W72/14
Filed: 2019-03-29
Abstract: A method for enabling dynamic control of uplink transmission resources by the base station BS, the method comprising the steps of transmitting a grant signal from the BS to a first user equipment UE indicating a set of resources for an uplink transmission, subsequently receiving a scheduling request for an uplink transmission at the BS from a second UE, transmitting a grant signal from the BS to the second UE indicating a second set of resources for the second UE's uplink transmission, wherein the second set of resources overlaps with the first set of resources, and transmitting a suspension indication from the BS to the first UE cancelling its scheduled uplink transmission, wherein the suspension indication identifies the first UE explicitly.
Patent WO-2019218910-A1 (WO)
Inventor: YANG YU
IPC: H04W16/28
Filed: 2019-05-08
Abstract: 本公开实施例提供一种多载波系统中的波束失败恢复方法及装置，涉及通信技术领域。该方法应用于UE，包括：在确定第一小区对应的载波发生波束失败事件且满足触发发送波束失败恢复请求的条件的情况下，通过第一资源向网络侧设备发送第一波束失败恢复请求消息，第一波束失败恢复请求包括：第一指示信息，所述第一指示信息用于指示第一小区；从所述网络侧设备接收波束失败恢复请求应答消息。
Patent WO-2020237427-A1 (WO)
Inventor: SIT TAN LAM
IPC: H05B47/00
Filed: 2019-05-24
Abstract: Disclosed are an LED soft light strip circuit with which the brightness and color temperature are adjusted simultaneously and a soft light strip. The circuit comprises: a positive electrode bus (26), a negative electrode bus (27), and several LED light-emitting components (22). Each LED light-emitting component comprises: a first LED light string (23) and a second LED light string (24) connected in parallel, a voltage-controlled semiconductor switch transistor (5) connected in the second LED light string, and a delay circuit (25) connected to a control end of the switch transistor. LEDs in either LED light strings are identical in number but different in color temperature. The soft light strip comprises a tape-like substrate and the soft light strip circuit. The positive electrode bus and the negative electrode bus respectively are provided on the rear side of the substrate in the lengthwise direction of the substrate. The several LED light-emitting components are provided on the front side of the substrate in the lengthwise direction of the substrate. A power supply for the present circuit is easy to match, no chromatic aberration is produced with an increase in the length of the light strip, and the consistency of color temperature adjustments is great.
Patent WO-2020133913-A1 (WO)
Inventor: REN XIAOPING
IPC: E06B3/72
Filed: 2019-05-31
Abstract: 一种带铝合金造型结构的门扇，包括钢结构门体（5）和设置在钢结构门体（5）上的面板。其中，面板包括至少两个分离的装饰板（4、6），两个装饰板（4、6）的背面在同一高度上并通过连接钢片连接，其正面则通过铝合金装饰型材连接；该铝合金装饰型材包括两个将装饰板的相邻的边收口的收口边，方便门扇面板固定到钢结构门体（5）上，同时也起到了美观的作用。
Patent WO-2020237682-A1 (WO)
Inventor: YANG BING
IPC: G11C7/10
Filed: 2019-05-31
Abstract: Disclosed in embodiments of the present application are a content-addressable storage apparatus and method, and a related device, wherein the content-addressable storage apparatus may comprise: a memory used for storing data to be matched; a comparator comprising N comparison units, the N comparison units being respectively coupled to the memory; a scheduler used for acquiring K pieces of search data and for scheduling the K pieces of search data to K target comparison units among the N comparison units respectively, the target comparison units being comparison units in an idle state; a controller used for controlling the memory to read out the data to be matched and send same to the K target comparison units respectively; and each target comparison unit among the K target comparison units is used for comparing corresponding search data with the data to be matched, and outputting a corresponding matching result according to the comparison result. By employing the present application, the low power consumption and flexibility of a content-addressable storage device may be ensured.
Patent WO-2021000064-A1 (WO)
Title: Rc oscillator
Inventor: CHEN YANQIN
IPC: H03B5/04
Filed: 2019-06-29
Abstract: Disclosed in embodiments of the present application is an RC oscillator. The RC oscillator may use a first amplifier and a second amplifier to amplify the difference between a first voltage and a second voltage. The first amplifier may comprise a first amplifying circuit and a second amplifying circuit. The first amplifying circuit and the second amplifying circuit may multiplex the same voltage current conversion circuit. The RC oscillator disclosed in embodiments of the present application may not only prevent the first amplifier from introducing noise, but may also reduce noise at the interior of the RC oscillator, thereby reducing the jitter of a clock signal.
Patent WO-2020103466-A1 (WO)
Title: Phase contrast and differential interference contrast micro-imaging method based on light intensity transmission equation
Inventor: ZUO CHAO
IPC: G06F17/11
Filed: 2019-07-05
Abstract: A phase contrast and differential interference contrast micro-imaging method based on a light intensity transmission equation, the method comprising: firstly, collecting three intensity images along an optical axis; secondly, solving a light intensity transmission equation by using deconvolution so as to obtain a quantitative phase diagram; then obtaining, according to a differential interference contrast imaging principle, a light intensity diagram under an imaging mode; and finally, solving, according to a phase contrast imaging principle, a corresponding phase transfer function so as to obtain a light intensity diagram in the imaging mode. The method is capable of endowing a bright field microscope with a capability of realizing phase contrast and differential interference contrast imaging under the premise of not carrying out complicated transformation on a traditional bright field microscope, namely, the same imaging effect as a phase contrast microscope and a differential interference contrast microscope, which are high in cost, complicated in structure and strict in environment condition requirement, can be realized with the advantages of being quantitative, high in speed, low in cost, simple in structure and with less external interference by means of a phase contrast and differential interference contrast algorithm by using a common traditional bright field microscope without adding any complicated device.
Patent WO-2021012288-A1 (WO)
Title: 用于油气套管井的液体炸药注入和层内爆炸压裂装置
Inventor: QU BO
IPC: E21B34/10
Filed: 2019-07-26
Abstract: 一种用于油气套管井的液体炸药注入和层内爆炸压裂装置，包括第一圆柱形筒体(1)、圆柱形联接器(2)、第二圆柱形筒体(3)、环形密封组件(4)、启爆组件(5)；第一圆柱形筒体(1)通过圆柱形联接器(2)与第二圆柱形筒体(3)连接；环形密封组件(4)套设在圆柱形联接器(2)、第二圆柱形筒体(3)外；启爆组件(5)固定设置在圆柱形联接器(2)内；第一圆柱形筒体(1)内依次设置有第一活塞(11)、第二活塞(12)；第二活塞(12)上设置有推杆(121)，推杆(121)的一端贯穿设置在第二活塞(12)的中心孔内，并且突出到中心孔外的第一活塞(11)和第二活塞(12)之间的区域，推杆(121)的另一端贯穿设置在圆柱形联接器(2)内；推杆(121)和圆柱形联接器(2)上配合设置有液体炸药注入通道。该装置够安全、可控、可靠实现这一系列过程。
Patent WO-2020134071-A1 (WO)
Inventor: CAI MIAO
IPC: H01H13/10
Filed: 2019-07-30
Abstract: 本申请提供了一种按键和按键的制作方法，按键包括：底座和焊脚，焊脚卡接于底座上，焊脚包括焊接部、连接部和固定部，焊接部与底座的下表面相贴合，固定部与底座的上表面相贴合，连接部的一端与焊接部相连接，另一端与固定部相连接。本申请所提供的按键，由于通过机械加工即可实现对焊脚的安装，加工按键时不需对焊脚的焊接面进行保护，并且可确保焊脚的焊接面无残留物残留，简化了按键的制作工艺，并且可降低按键的废品率；通过机械加工对焊脚进行安装，焊脚的位置、数量、形状、尺寸等不受按键成型工艺的影响，还使得焊脚的安装位置更加灵活，适合多种型号的按键的制作，提升了焊脚的通用性。
Patent WO-2021016967-A1 (WO)
Inventor: LIU YANG
IPC: H04W74/08
Filed: 2019-07-31
Abstract: 本申请涉及一种随机接入方法、接收方法、装置、设备及介质。所述方法包括：接收配置信息，所述配置信息用于指示启用随机接入过程的回退功能；当基于SSB的随机接入满足目标条件时，将两步随机接入回退为四步随机接入。
Patent WO-2020057312-A1 (WO)
Inventor: JIANG LEI
IPC: H04L5/00
Filed: 2019-08-21
Abstract: Des modes de réalisation de la présente invention concernent un procédé d'indication de temps de transmission pour une bande sans licence, un dispositif de réseau, et un terminal. Le procédé comprend les étapes consistant à : détecter un état de canal ; et au cas où l'état de canal serait vide, indiquer des premières informations de temps d'occupation de canal (COT), les premières informations COT étant utilisées pour indiquer le COT restant du dispositif de réseau.
Patent WO-2020038426-A1 (WO)
Inventor: CUI JIAN
IPC: C07D259/00
Filed: 2019-08-22
Abstract: Une forme cristalline A du composé de formule (I) et ses utilisations en médecine sont décrites. En particulier, l'invention concerne la forme cristalline A et des compositions pharmaceutiques de celle-ci. En outre, l'invention concerne les utilisations de la forme cristalline A de la présente invention et des compositions pharmaceutiques de celle-ci dans la fabrication d'un médicament, en particulier dans la fabrication d'un médicament pour la prévention, la gestion, le traitement ou la diminution d'une infection par le virus de l'hépatite C (VHC).
Patent WO-2020248376-A1 (WO)
Title: 情绪检测方法、装置、电子设备及存储介质
Inventor: Sheng Jianda
IPC: G06K9/62
Filed: 2019-08-27
Abstract: 一种情绪检测方法，所述方法包括：获取多个音视频样本；从所述音视频样本中抓取出多个图像样本以及与所述多个图像样本匹配的多个声音样本；将多个所述图像样本输入基于图像的情绪识别模型，获得多个图像特征，以及将多个所述声音样本输入基于声音的情绪识别模型，获得多个声音特征；将所述多个图像特征和多个所述声音特征进行融合，获得融合特征；将所述融合特征输入待训练模型进行训练，获得情绪检测混合模型；将处理后的待识别音视频输入所述情绪检测混合模型，获得情绪识别结果。本发明还提供一种情绪检测装置、电子设备以及存储介质。本发明能提高整个情绪预测的准确度，同时，也增加了模型的鲁棒性。
Patent WO-2020140473-A1 (WO)
Inventor: LV BAITAO
IPC: G01D5/12
Filed: 2019-09-11
Abstract: L'invention concerne un module de détection de rotation comprenant : un boîtier (10) dont le matériau constitue un matériau de blindage magnétique ; un composant rotatif (20) passant à travers le boîtier (10) ; un composant magnétique (30) situé dans le boîtier (10) et tournant d'un seul tenant avec le composant rotatif (20) ; un capteur magnétique (40) situé dans le boîtier (10), agencé par rapport au composant magnétique (30) et utilisé pour détecter l'angle de rotation du composant magnétique (30) et/ou détecter le déplacement du composant magnétique (30) le long de la direction axiale du composant rotatif (20). L'invention concerne en outre un dispositif électronique comprenant le module de détection de rotation.
Patent WO-2021031269-A1 (WO)
Title: Waterproof guardrail having garbage collection function for water engineering
Inventor: WANG ZHIJUN
IPC: E02B15/08
Filed: 2019-09-18
Abstract: A waterproof guardrail having a garbage collection function for water engineering, comprising a fixing device (1), a waterproof device (2) and a fastening device (3), the waterproof device (2) used for blocking water waves being movably inserted into the interior of the fixing device (1), and the fastening device (3) used for fixing the waterproof device (2) being fixedly mounted on the top of the fixing device (1). The waterproof device (2) comprises a movable plate (21), a connecting plate (22), a floating cylinder (23), a collecting plate (24), a connecting rod (25) and a collecting net (26). By means of arranging the fixing device (1) and the waterproof device (2), a fixing plate (12) is fixed to the river bank, and the impact of water waves enables the movable plate (21) to rise on the surface of the fixing plate (12) so as to block the water waves, solving the problem of poor protection effect of conventional fixed river bank. Said device uses the buoyancy of the floating cylinder to make the movable plate (21) block the water waves as the impact force of the water waves rises, avoiding crashing of the water waves into the shore to cause damage to public facilities and harm pedestrians on the shore, and improving the usability of said device.
Patent WO-2020155686-A1 (WO)
Inventor: WANG HAI
IPC: B05C5/04
Filed: 2019-10-24
Abstract: 一种防流挂加热胶枪，包括：气缸（1）、设置在气缸上方的胶室（4），以及穿透所述胶室与气缸连接的枪针（10），设置在胶室一侧的电气插头（3）、设置在胶室上方的枪头（5）以及设置在胶室内部的多组负载装置（14），设置在所述枪头上方的护套（6），以及设置在护套上方的锁紧螺母（7），套接所述枪针的球式阀杆（13），设置在球式阀杆端部的密封球（15），与所述密封球抵接的阀座（11），以及设置在阀座上方的枪嘴（12）。该胶枪设置有负载装置及电气插头实现可调式温度控制，设置球式阀杆使密封球导入性极佳，能迅速起到开合的动作，彻底解决密封不及时带来的流挂和粘接剂的浪费。
Patent WO-2020140589-A1 (WO)
Inventor: SONG WEI
IPC: H04R9/06
Filed: 2019-10-29
Abstract: The present application relates to the technical field of sounding devices and particularly relates to a micro sounding device. The micro sounding device comprises: a basin frame, and a vibrating system and a magnetic circuit system that are fixed onto the basin frame. The vibrating system comprises a vibrating diaphragm component and a voice coil component that are connected to each other; the voice coil component comprises: a voice coil framework connected to the vibrating diaphragm component, and a voice coil stuck to the voice coil framework. The magnetic circuit system comprises a magnetic bowl overturned on the basin frame and a magnetic steel disposed on the magnetic bowl. The basin frame comprises: a basin frame bottom wall abutted onto the magnetic bowl, a basin frame side wall extending from the side close to the magnetic steel of the basin frame bottom wall to the direction away from the magnetic bowl, and a magnetic blocking wall bending and extending from the side away from the magnetic bowl of the basin frame side wall to the direction close to the voice coil. The basin frame side wall and the magnetic steel form a magnetic gap, the voice coil is disposed in the magnetic gap, the side away from the vibrating diaphragm of the magnetic blocking wall is provided with a hollow annular magnetic conductive sheet, and the magnetic conductive sheet and the voice coil are disposed at an interval. The micro sounding device provided in the present application grantees a magnetic conductive property and has a low cost.
Patent WO-2021092745-A1 (WO)
Inventor: LIN HSIAO-YING
IPC: H04L29/08
Filed: 2019-11-12
Abstract: A device upgrade method and a related device, specifically capable of being used in smart vehicles and driverless vehicles, ensuring security of upgrading of a vehicle-mounted device in a vehicle. The method comprises: a server generating an access policy for a device to be upgraded according to an attribute set of the device to be upgraded; the server encrypting a target upgrade package according to the access policy, generating a target upgrade package ciphertext; the server sending the target upgrade package ciphertext to the device to be upgraded, the target upgrade package ciphertext being used for the device to be upgraded to perform decryption according to one or more attribute cryptographic keys corresponding to the attribute set, so as to obtain the target upgrade package. The present method may be used to ensure secure and efficient upgrade of a home device or vehicle-mounted device.