baber/WOPTO huggingface dataset:
Patent WO-2021027789-A1 (WO)
Inventor: HUANG FEI
IPC: G06N3/04
Filed: 2020-08-10
Abstract: A method for optimizing the poses for photographing a user, relating to the technical field of artificial intelligence and in particular relating to the technical field of computer vision, and applied to electronic equipment. The method comprises: displaying the photographing interface of a camera of the electronic equipment (S310); acquiring a framing image of the photographing interface, and determining that the photographing interface includes a human figure according to the framing image (S320); entering a pose recommendation mode, and presenting body pose recommendation pictures to the user according to a predetermined preview manner, the body pose pictures being at least one picture selected from the picture library by means of measurement learning and having higher ranking of similarity with the framing image, and the similarity being an overall similarity taking both background similarity and foreground similarity into consideration (S330).
Patent WO-2022032540-A1 (WO)
Inventor: HONG WEI
IPC: G08G5/06
Filed: 2020-08-12
Abstract: 本公开实施例提供一种UAV飞行控制、管控策略处理方法及装置、电设备及存储介质。所述UAV飞行控制方法，可应用于会话管理功能SMF中，其中，包括：响应于检测到无人机UAV的控制设备切换需求，根据管控策略将所述UAV的控制设备从第一设备切换到第二设备。
Patent WO-2021027882-A1 (WO)
Title: 一种充电管理系统、方法、装置和存储介质
Inventor: QIN WEI
IPC: H02J7/00
Filed: 2020-08-13
Abstract: 本发明公开了一种充电管理系统、方法、装置和存储介质，该系统包括：微处理器用于获取至少两个待充电电池的当前电量参数；微处理器的控制端与至少两个充电回路开关的受控端连接，用于根据当前电量参数确定是否对至少两个待充电电池进行充电，并根据供电电源的工作状态控制至少两个充电回路开关中任一充电回路开关的通断状态。本发明实施例利用微处理器集中管理多路供电电源对多个待充电电池的充电情况，从而省去了繁琐的DC-DC电路，实现了在降低硬件成本的情况下，自动对多个待充电电池进行充电管理。
Patent WO-2021120659-A1 (WO)
Title: 自驾控制装置及具有其的无人驾驶装置
Inventor: WEN HAIJUN
IPC: B64C1/00
Filed: 2020-08-20
Abstract: 一种自驾控制装置(100)及具有其的无人驾驶装置，自驾控制装置(100)包括：安装座(120)、控制装置(30)、通信装置以及天线组件(60)，安装座(120)具有收容腔(21)，控制装置(30)设置于收容腔(21)内，通信装置设置于收容腔(21)内且与控制装置(30)电连接，天线组件(60)安装于安装座(120)且与通信装置电连接。
Patent WO-2022056781-A1 (WO)
Title: 调光装置及电子设备
Inventor: ZHANG XINGDE
IPC: H02M3/335
Filed: 2020-09-17
Abstract: 本公开实施例提供一种调光装置及电子设备，其中，调光装置包括LLC谐振变换电路、占空比调节电路、整流滤波电路、负载电路和控制电路。该LLC谐振变换电路、占空比调节电路、整流滤波电路、负载电路和控制电路依次连接形成一循环回路。该架构中，在LLC谐振变换电路之后、整流滤波电路之前，增加了占空比调节电路，利用占空比调节电路来调节有效占空比，进而调节输出个负载电路的能量，确保在开关频率变化较小的范围内也能实现负载能量的宽范围变化，解决了传统PWM调光的LLC背光驱动线路，对背光屏拍照时闪烁及调光异音的问题。
Patent WO-2021088538-A1 (WO)
Title: 一种轴控内燃机车及其主传动系统和方法
Inventor: WEN JIBIN
IPC: B61C5/00
Filed: 2020-09-21
Abstract: 一种轴控内燃机车及其主传动系统和方法。所述主传动系统包括主发电机（10），所述主发电机（10）包括多个定子输出绕组（101，102，103，104），每个定子输出绕组连接一个牵引电机回路。所述主传动系统中的每个定子输出绕组连接一个牵引电机回路，从主发电机（10）至牵引电机（14，24，34，44）都采用彼此独立的回路，保证每个牵引电机从电源至中间变流环节都电气隔离、彼此独立，保证了任何一个环节发生故障时，只会影响到该回路，机车只损失一个轴的动力，提高了机车的冗余性。
Patent WO-2021073414-A1 (WO)
Title: Task scheduling method and related apparatus
Inventor: LIANG JINYA
IPC: G06F9/48
Filed: 2020-09-28
Abstract: A task scheduling method and a related apparatus. The method is applied to a task scheduling system. The task scheduling system comprises a task scheduling platform and a task distribution component. The method comprises: acquiring a task flow submitted by a user (201); splitting the task flow by means of a task scheduling platform to obtain a plurality of tasks, determining a submission trigger condition of the plurality of tasks, and generating, according to the submission trigger condition of the plurality of tasks, a task queue that can be submitted (202); submitting tasks in said task queue to a task distribution component (203); and distributing the tasks in said task queue to a target distributed cluster by means of the task distribution component, and acquiring a task running result (204). The technical solution of the method embodiment is conducive to the simplification of a task establishment process, thereby improving task scheduling efficiency.
Patent WO-2021058029-A1 (WO)
Inventor: YU YOUYANG
IPC: H04W28/02
Filed: 2020-09-29
Abstract: Embodiments of the present application provide a service flow transmission control method, a device, and a system, pertaining to the technical field of communications. The invention is used to meet a QoS parameter control requirement required by a first access technique in the scenario of defining a TMBR for a session. The solution comprises: a session management network element acquiring a first total maximum bit rate (TMBR) for a service flow transmitted by means of a first access technique in a session and a guaranteed bandwidth of a first guaranteed bit rate (GBR) service flow, wherein the TMBR is used to indicate a TMBR for all service flows transmitted by means of the first access technique in the session; and the session management network element sending first information to a data plane network element, wherein the first information is used by the data plane network element to determine one or more of the following information of the session: a first AMBR, and a second aggregate maximum bit rate (AMBR) and a second TMBR corresponding to the first access technique, and the second AMBR is used to indicate an AMBR of a non-GBR service flow transmitted by the first access technique in the session.
Patent WO-2021189811-A1 (WO)
Inventor: CAI LIANGBAO
IPC: H01R13/11
Filed: 2020-10-12
Abstract: A fuel pump, comprising a housing (1) and a cover (2) which fit with one another. A fuel pump core (7) is arranged in the housing (1). Conductive pieces (8) extend from the fuel pump core (7). Wiring columns (10) are arranged on the cover (2) and achieve electrical contact with the conductive pieces (8) when the housing (1) and the cover (2) are fitted. Portions of the wiring columns (10) extending from the cover (2) are bent laterally, and a wiring base (21) covering the wiring columns (10) is arranged on the cover (2), the wiring base (21) having a lateral opening. The fuel pump prevents rainwater or dust from entering into the wiring base (21) and ensures reliable power supply via a power source connection.
Patent WO-2022077234-A1 (WO)
Inventor: ZHU YAJUN
IPC: H04W72/12
Filed: 2020-10-13
Abstract: La présente demande concerne un procédé et un appareil de programmation d'informations de commande de liaison descendante, et un support de stockage. Le procédé de programmation d'informations de commande de liaison descendante consiste : à déterminer des informations de commande de liaison descendante conjointes, les informations de commande de liaison descendante conjointes étant déterminées sur la base d'au moins deux éléments d'informations de commande de liaison descendante de membre, chaque élément d'informations de commande de liaison descendante de membre programmant de manière correspondante un canal de données, et les informations de commande de liaison descendante conjointes étant utilisées pour programmer une pluralité de canaux de données correspondant aux au moins deux éléments d'informations de commande de liaison descendante de membre. Au moyen de la présente invention, par programmation, au moyen des informations de commande de liaison descendante conjointes, de la pluralité de canaux de données programmés par les au moins deux éléments d'informations de commande de liaison descendante de membre, les surcharges de ressources peuvent être réduites.
Patent WO-2022094843-A1 (WO)
Title: Temperature sensing device for a high voltage disconnecting switch and high voltage disconnecting switch including a temperature sensing device
Inventor: DENG JUNTAO
IPC: G01K11/32
Filed: 2020-11-05
Abstract: A sensing device for a high voltage disconnecting switch comprises a light emitting element, which is configured to align its temperature with a temperature of the high voltage disconnecting switch, and an optical fiber, which is configured to receive a light emission from the light emitting element and configured to guide the light emission. Further, a deriving unit is configured to receive the light emission from the optical fiber and derive information about the temperature of the high voltage disconnecting switch based on a duration of the received light emission.
Patent WO-2021218113-A1 (WO)
Title: Led箱体及卡扣结构
Inventor: HE JINFENG
IPC: F21V19/00
Filed: 2020-11-11
Abstract: 一种LED箱体及卡扣结构。LED箱体包括主体(1)、PCB板(2)和连接件，PCB板(2)通过连接件固定在主体(1)上，其中，连接件包括子扣(3)和母扣(4)，子扣(3)的端部上设有相连的第一锥形段(31)和台阶部(32)，母扣(4)上设有倒钩部(41)，第一锥形段(31)伸入母扣(4)的卡扣腔，倒钩部(41)锁止于台阶部(32)处。
Patent WO-2021232708-A1 (WO)
Inventor: GUO YILIN
IPC: G06T3/00
Filed: 2020-11-13
Abstract: 本申请关于一种图像处理方法及电子设备，以至少解决利用生成式对抗网络GAN，将形状与参考对象的形状差异大的待处理对象处理为参考对象的类型的图片时，准确性差的问题。该方法包括：获取原始图像；原始图像包括待处理对象；对待处理对象进行图像变形，将图像变形后的待处理对象的形状变换为参考对象的形状，得到中间图像；对中间图像中图像变形后的待处理对象进行纹理处理，将纹理处理后的待处理对象的纹理处理为参考对象的纹理，得到目标图像。
Patent WO-2021218139-A1 (WO)
Title: 连铸板栅网带结构
Inventor: YUE BAO
IPC: H01M50/541
Filed: 2020-11-26
Abstract: 一种连铸板栅网带结构，由两列多个串联的板栅（1）水平连接而成，两列所述串联的板栅（1）的极耳（2）相背设置在该结构的外侧；两列所述串联的板栅（1）的板栅底部边框（3）相对错位设置，且通过沿板栅涂片进料方向先后进料的错位连接块（4）水平连接在该结构的内侧。通过合理设计板栅网带上板栅（1）的排布和连接结构，有效提高了产品质量和合格率，实现了降本增效。
Patent WO-2021104362-A1 (WO)
Title: 一种加湿器
Inventor: LI HAISONG
IPC: F24F13/20
Filed: 2020-11-26
Abstract: 一种加湿器，包括机座、水箱、抽水泵和进水管，所述机座位于所述水箱上，所述机座包括设置在其内的雾化储水槽、上水座、控制座、雾化气道和雾化器；所述上水座包括具有位于上方的上水口和位于底部的第一流出口，所述第一流出口与所述水箱相连通；所述雾化储水槽设有进水口，在所述抽水泵的作用下，所述水箱中的水通过所述进水管进入所述雾化储水槽中；所述雾化器通过雾化口与所述雾化储水槽连通，所述雾化口设置在所述雾化储水槽，所述雾化器工作产生的水汽通过所述雾化气道底部的进气口进入到所述雾化气道中，沿着所述雾化气道流出到外界。
Patent WO-2022110306-A1 (WO)
Inventor: XU FEI
IPC: H02K1/12
Filed: 2020-12-09
Abstract: Noyau statorique, stator, moteur synchrone à aimants permanents (PMSM), compresseur et dispositif de réfrigération. Le noyau statorique comprend : un trou interne de stator (120), qui est destiné à passer à travers un rotor ; une pluralité de feuilles de poinçonnage de stator, chaque feuille de poinçonnage de stator ayant une épaisseur, la pluralité de feuilles de poinçonnage de stator étant empilées le long de la direction axiale du trou interne de stator (120), et les feuilles de poinçonnage de stator comprenant chacune une culasse de stator et une pluralité de dents de stator (110) réparties circonférentiellement le long de la culasse de stator ; et les dents de stator comprennent : des racines de dents (112) qui sont reliées à la culasse de stator, et des couronnes (114) qui sont reliées à une extrémité des racines de dents (112) à distance de la culasse de stator, chaque feuille de poinçonnage de stator ayant une épaisseur le long de la direction axiale du trou interne de stator, au moins une couronne (114) sur l'au moins une feuille de poinçonnage de stator est pourvue d'un trou traversant conducteur magnétique (1142), et la projection des trous traversants conducteurs magnétiques (1142) le long de la direction axiale des racines de dents (112) sur les couronnes (114) divise la surface des couronnes (114) à l'opposé des racines de dents (112) dans une première surface de couronne (1144) et une seconde surface de couronne (1146), la zone de la première surface de couronne (1144) étant plus petite que la zone de la seconde surface de couronne (1146). Le bruit de vibration de la bande de fréquence clé d'un moteur peut être considérablement amélioré, et l'expérience d'écoute du moteur et d'un compresseur peut être améliorée.
Patent WO-2021159843-A1 (WO)
Inventor: FENG BOHAO
IPC: G06K9/20
Filed: 2020-12-11
Abstract: 一种对象识别方法和装置、电子设备、存储介质，涉及人工智能领域，包括：采集待识别对象（S101），根据与待识别对象对应的目标文本检测模型，从待识别对象对应的全量文本信息中筛选并识别得到兴趣点文本信息（S102），根据预设的文本识别模型对兴趣点文本信息进行识别（S103）。通过由目标文本检测模型从全量文本信息中筛选并识别得到兴趣点文本信息，避免了现有技术中对全量文本信息的识别，节约了识别的时间，提高了识别的效率。
Patent WO-2022126600-A1 (WO)
Inventor: HAN JING
IPC: H04W76/28
Filed: 2020-12-18
Abstract: La présente demande concerne un procédé et un appareil pour une transmission sur liaison latérale. Le procédé comprend : la transmission ou la réception d'informations SCI en direction ou en provenance d'un autre équipement utilisateur, les informations SCI comprenant un indicateur NDI et un indicateur de retour de demande HARQ ; et la détermination de l'initiation ou non d'un temporisateur d'inactivité en fonction de l'indicateur NDI et de l'indicateur de retour de demande HARQ.
Patent WO-2022088468-A1 (WO)
Title: Biodegradable adhesive tape and preparation method therefor
Inventor: WANG JUNXIANG
IPC: C09J7/20
Filed: 2020-12-28
Abstract: Disclosed are biodegradable adhesive tape and a preparation method therefor, the biodegradable adhesive tape comprising a release layer, a base material layer, a water-blocking adhesive film layer and an adhesive layer which are sequentially stacked; the base material layer is a cellulose film layer, the water-blocking adhesive film layer has a water-blocking effect, the adhesive layer is prepared from a water-based pressure-sensitive adhesive, and the water-blocking adhesive film layer is prepared from a water-blocking adhesive. In the biodegradable adhesive tape of the present invention, the biodegradability of the adhesive tape is greatly improved, and environmental pollution is minimized. The preparation method for biodegradable adhesive tape of the present invention has a simple process and is highly efficient; in addition, by coating a water-blocking layer on a cellulose film layer, the problem in which moisture in a water-based pressure-sensitive adhesive makes direct contact with a cellulose film causing the cellulose film layer to absorb the water and soften, such that the tape becomes soft and wrinkled and unable to be curled is prevented from occurring.
Patent WO-2021136551-A1 (WO)
Title: Rechargeable battery, electrode sheet thereof, and preparation method for electrode sheet
Inventor: ZHANG QIN
IPC: H01M50/536
Filed: 2021-01-04
Abstract: Provided are a rechargeable battery, an electrode sheet thereof, and a preparation method for an electrode sheet, which belong to the technical field of rechargeable batteries. A conductive layer of a current collector in an electrode sheet of the rechargeable battery comprises a first area and a second area, wherein the thickness of the first area is greater than the thickness of the second area. An active substance layer is arranged in the second area, and a portion of the first area that is relatively close to the second area. In the electrode sheet of the rechargeable battery, an area of the first area that is not coated with an active substance serves as a tab area, wherein the tab area has a relatively large thickness and is used for connecting a tab, and the second area and the portion of the first area that is relatively close to the second area serve as coated areas, which are are used for being coated with the active substance to form the active substance layer. The current-passing capability of the tab area and the tab can be enhanced, and the current-passing capability of the tab area and coated areas can also be enhanced, such that the overall electrical conductivity capability of the electrode sheet is improved, the internal resistance of a battery cell is reduced, and the 3C capacity retention rate of the battery cell is increased; and for battery cells of the same volume, more active substance layers can be coated, such that the energy density of the battery cells is improved.
Patent WO-2021139789-A1 (WO)
Inventor: XIONG YOUHUI
IPC: G01N29/02
Filed: 2021-01-08
Abstract: 一种麻醉气体浓度测量系统，通过切换控制阀（9,16,17,18,19），仅使用一个超声波浓度传感器（11）即可测出混合气体中麻醉剂的浓度，降低了系统的体积和成本，消除了传感器差异造成的检测误差，并且根据流量传感器（8）实时测得的第一混合气体中各个成分的流量可以计算出第一混合气体的浓度，在每一次向病人通麻醉剂之前或者每间隔一段时间，利用浓度传感器（11）对根据流量传感器（8）输出的数据计算得到的浓度数据进行校准，校准之后浓度传感器（11）连续实时测量第二混合气体的浓度，根据第二混合气体的浓度以及校准之后得到的第一混合气体的浓度可以得到麻醉气体的浓度，兼顾了麻醉气体浓度测量的实时性和准确性，降低了由于频繁切换电磁阀导致的管道残余气体交叉混合的风险。
Patent WO-2022151005-A1 (WO)
Title: Reprise sur défaillance de faisceau pour équipement utilisateur communiquant avec de multiples points d'émission et de réception
Inventor: ZHANG YUSHU
IPC: H04W72/04
Filed: 2021-01-13
Abstract: Un équipement utilisateur (UE) peut établir une communication avec une pluralité de points d'émission et réception (TRP) et déterminer une ou plusieurs défaillances de faisceau associées à un premier ou un second TRP d'après les signaux de référence reçus des premier et second TRP. L'UE peut ensuite transmettre une demande de planification demandant des ressources pour indiquer les défaillances de faisceau associées au premier TRP ou au second TRP. Lors de la réception d'une réponse à la demande de planification attribuant des ressources, l'UE peut ensuite transmettre, à l'aide des ressources attribuées, une indication de défaillance de faisceau de la première ou des premières défaillances de faisceau associées au premier TRP ou au second TRP. Après avoir reçu une réponse de défaillance de faisceau du premier ou du second TRP, l'UE peut ensuite communiquer avec le premier TRP et le second TRP à l'aide d'un ou de plusieurs nouveaux faisceaux d'après l'indication de défaillance de faisceau et la réponse de défaillance de faisceau.
Patent WO-2022160127-A1 (WO)
Title: 控制方法和装置
Inventor: Song sida
IPC: G05D1/00
Filed: 2021-01-27
Abstract: 一种控制方法和装置及一种芯片、一种计算机可读存储介质和终端，应用于自动驾驶、智能驾驶或者无人驾驶领域。所述方法包括：确定第一状态提示，控制第一终端中的至少一个第一目标设备执行第一动作，第一动作用于指示第一状态提示。其中，第一动作对应于第一状态提示；获取至少一个第一目标设备的第一动作的信息，根据第一动作的信息，获取来自第一目标设备所在的第一终端的第一状态提示。其中，第一动作用于指示第一状态提示。这样，获取的第一状态提示是基于第一目标设备的第一动作指示的，可以减少环境能见度等的影响，基于所获取的第一状态提示可以相应调整驾驶策略，从而提高车辆驾驶的安全性和舒适性。
Patent WO-2022160332-A1 (WO)
Title: Negative electrode active material, negative electrode comprising same, electrochemical device and electronic device
Inventor: TANG JIA
IPC: H01M4/587
Filed: 2021-02-01
Abstract: The present application relates to a negative electrode active material, a negative electrode comprising same, an electrochemical device and an electronic device. The negative electrode active material includes graphite, wherein the half peak width of the (002) crystal plane diffraction peak of the graphite is within a range of 0.260° to 0.300° as measured by an X-ray diffraction method. The electrochemical device prepared according to the negative electrode active material in the present application has higher capacity retention and energy density and improved dynamic performance.
Patent WO-2022088544-A1 (WO)
Title: Following robot multi-target identification system and method based on coded thermal infrared marker
Inventor: ZHANG HUI
IPC: G06K9/00
Filed: 2021-02-02
Abstract: A following robot multi-target identification system and method based on a coded thermal infrared marker. The system comprises: a thermal radiation mark, which is arranged on a target to be identified, wherein a plurality of heating coils are arranged in the thermal radiation mark, and the heating coils are heated according to different coding rules; a thermal infrared image collection module, which is used for collecting a thermal infrared image of said target and transferring the thermal infrared image to a data processing module; and the data processing module, which is used for identifying a thermal radiation marker image from the thermal infrared image, identifying coding information of the thermal radiation marker according to the thermal radiation marker image, and identifying said target by means of the coding information. A thermal radiation mark worn by a target to be identified is identified, and coding information in the thermal radiation mark is extracted, such that the identification of different targets by a following robot is realized according to the coding information.
Patent WO-2021190179-A1 (WO)
Inventor: LI MAOCAI
IPC: G06F16/27
Filed: 2021-02-05
Abstract: Disclosed are a synchronous processing method, apparatus and device, and a medium, wherein the method is executed by a first node device in a blockchain network, the blockchain network comprises an alternative node set, and the alternative node set contains multiple alternative node devices connected to the first node device. The method comprises: acquiring a framework set and a synchronization task set (S501), wherein the framework set is used for storing M blocks to be synchronized by the first node device, the framework set contains P frameworks, the synchronization task set comprises P synchronization tasks, the P frameworks correspond to the P synchronization tasks on a one-to-one basis, and M and P are both positive integers; selecting a second node device from the alternative node set (S502); concurrently sending synchronization tasks in the synchronization task set to the second node device, such that the second node device executes the synchronization tasks and returns M blocks (S503); and filling each framework in the framework set with the M blocks (S504). Synchronous processing efficiency can be effectively improved.
Patent WO-2021179875-A1 (WO)
Inventor: YANG GUANNAN
IPC: B81C3/00
Filed: 2021-02-08
Abstract: The present invention provides a suspension directional migration and self-loading mass transfer method for single and multiple types of tiny objects. By means of surface treatment on tiny objects and a target carrier plate, target positions in the target carrier plate have different surface energies. The tiny objects and the target carrier plate are placed in a solution, gas is dissolved or introduced into the solution, and bubbles are separated out to wrap the tiny objects to suspend same to rise to get close to the target carrier plate. By utilizing the difference in surface energy of the target positions in the target carrier plate, the bubbles and chips are captured and stay at the target positions, and then degassing treatment is carried out, such that the bubbles are dissolved, and the tiny objects are combined with the target positions in the target carrier plate. Differentiated surface treatment is carried out on different target positions in the target carrier plate, such that suspension directional migration and self-loading mass transfer of multiple types of tiny objects can be further achieved in different solutions in sequence. The suspension directional migration and self-loading mass transfer method for single and multiple types of tiny objects provided by the present invention has the advantages of high efficiency, high positioning precision and easy operation.
Patent WO-2022170637-A1 (WO)
Inventor: XIA ZEYU
IPC: E01H1/14
Filed: 2021-02-15
Abstract: A subway metal foreign body cleaning robot, comprising a robot body (10) and an electromagnet (12), wherein a first electric motor (14) is mounted on the robot body (10), an output shaft (16) of the first electric motor (14) is connected to a support (18), the electromagnet (12) is mounted on the support (18), the electromagnet (12) is provided with an electrostatic generator (20), a roller (22) is arranged above the electromagnet (12), a thin film (24) is wound around the roller (22), and the roller (22) is driven by a second electric motor (26). The cleaning robot has a simple structure, and is convenient to use, and a metal foreign body is attracted by the electromagnet (12). In addition, under cooperation of the first electric motor (14), the electrostatic generator (20), the second electric motor (26) and the roller (22), the thin film (24) can be wound around the electromagnet (12), and the thin film (24) protects the electromagnet (12), thus avoiding contamination of the electromagnet (12).
Patent WO-2022062321-A1 (WO)
Title: Silicon-based negative electrode composite material and lithium secondary battery
Inventor: YIN YINGYING
IPC: H01M4/134
Filed: 2021-03-02
Abstract: A silicon-based negative electrode composite material and a lithium secondary battery. The silicon-based negative electrode composite material is a composite material composed of silicon-based particles and a carbon coating layer coated on the surface of the silicon-based particles; the silicon-based particles in a lithium insertion state are a composite material containing a Li x M y Si z  alloy, wherein 0<x<25, 0<y<5, and 0<z<6, and M is one or more of Ni, Cu, Zn, Al, Na, Mg, Au, N, and P; the silicon-based particles have an average particle diameter (D 50 ) of 0.1-40 μm and a specific surface area of 0.5 m 2 /g-40 m 2 /g; after lithium insertion, the Li x M y Si z  alloy is diffusely distributed in the whole silicon-based particles and has the crystallite dimension of 0.5 nm-100 nm, and the content of the Li  x M y Si z  alloy accounts for 5%-60% of the total mass of the silicon-based negative electrode composite material that is subjected to lithium insertion; and the carbon coating layer has a thickness of 1 nm-100 nm.