baber/WOPTO huggingface dataset:
Patent WO-2020094099-A1 (WO)
Inventor: MAO JUNWEI
IPC: A61B8/08
Filed: 2019-11-07
Abstract: A housing, a probe, and a detection device. The housing comprises a sealing member, an integral housing (1), and a cable sleeve (9). The sealing member is connected to a first end of the integral housing (1), and the sealing member is provided with a through hole (2) allowing an ultrasonic transducer (8) to pass through. The cable sleeve (9) is connected to a second end of the integral housing (1), and the second end of the integral housing (1) is provided with a cable lead-out hole (3) corresponding to the cable sleeve (9). The housing (1) in the housing structure is an integral structure, thereby avoiding seams generated during assembly of multiple housings, and having good sealing performance.
Patent WO-2020177382-A1 (WO)
Title: 锆合金的处理方法及应用
Inventor: SHEN YU
IPC: C23C8/10
Filed: 2019-11-13
Abstract: 一种锆合金的处理方法，包括对锆合金表层进行氧化和去除表层的处理，氧化和去除表层的处理包括：对锆合金表层进行氧化处理得到氧化物表层（41），然后去除氧化物表层（41），露出金属基底（30）。还包括一种锆合金的表面氧化陶瓷层（10）的制造方法和一种用于医用植入物的材料。
Patent WO-2020151329-A1 (WO)
Title: 基于目标检测的识别框确定方法、装置及终端设备
Inventor: XU RUIJIE
IPC: G06T7/246
Filed: 2019-11-13
Abstract: 一种基于目标检测的识别框确定方法、装置、终端设备以及计算机非易失性可读存储介质，方法包括：获取包含目标的待检测图像，并对所述待检测图像进行识别框分析，得到至少一个待检测识别框；根据每个所述待检测识别框对所述待检测图像进行截取得到截取图像；将所述待检测图像和所有所述截取图像依次输入预先训练好的识别框优化模型，得到目标识别框，其中，所述目标识别框用于指示所述目标所在的区域。该方法结合待检测图像的图像特征生成目标识别框，提升了确定目标识别框的准确性，从而提升了目标检测的准确性。
Patent WO-2021102861-A1 (WO)
Title: 一种加热导体胚料的方法和设备
Inventor: DAI SHAOTAO
IPC: H05B6/06
Filed: 2019-11-28
Abstract: 一种加热导体胚料的方法和设备，应用于高温超导直流感应加热系统中，所述加热系统中设置有多个包括磁导部分(6)和磁阻部分(7)的磁场调节单元，该方法包括：根据所述导体胚料(4)的目标轴向温度分布和预设对应关系确定目标轴向磁场分布(S101)；根据所述目标轴向磁场分布和当前轴向磁场分布确定权函数(S102)；基于所述权函数和预设映射关系表确定各所述磁场调节单元的调节量(S103)；基于所述调节量对所述磁导部分和所述磁阻部分的占比进行调节，以建立与所述目标轴向磁场分布对应的工作气隙磁场(S104)；将所述导体胚料(4)放入所述工作气隙磁场中的预设位置并进行旋转，以达到所述目标轴向温度分布，从而实现更加灵活准确地按目标轴向温度分布加热导体胚料(4)。
Patent WO-2020211398-A1 (WO)
Title: Portrait attribute model creating method and apparatus, computer device and storage medium
Inventor: YAO XUFENG
IPC: G06V10/25
Filed: 2019-12-05
Abstract: A portrait attribute model creating method. The method comprises: obtaining face detection data, determining a face area of interest, randomly labeling some of portrait attributes of the face area of interest to obtain training samples, training a portrait attribute model according to the training samples, and optimizing the trained portrait attribute model by means of an active learning algorithm to obtain an optimized portrait attribute model.
Patent WO-2020119766-A1 (WO)
Title: Procédé à base de nanoparticules pour cribler une enzyme ou un micro-organisme
Inventor: DU WENBING
IPC: A61K9/14
Filed: 2019-12-12
Abstract: La présente invention concerne une nanoparticule comprenant une matrice polymère insoluble dans l'eau et un(des) constituant(s) indicateur(s), le(s) constituant(s) indicateur(s) étant libéré(s) depuis la nanoparticule uniquement lorsque la matrice polymère est dégradée ou rompue, et ensuite un effet indicateur est déclenché ou amélioré. L'invention concerne également un procédé à base de nanoparticules pour cribler une substance bioactive et un système de criblage à base microfluidique.
Patent WO-2021109234-A1 (WO)
Inventor: CHEN JIANGCHUAN
IPC: G02F1/1335
Filed: 2019-12-17
Abstract: 一种液晶显示装置，其包括：背光模组（30）、第一液晶面板（10），以及第二液晶面板（20）。其中第二液晶面板（20）用于液晶显示装置的画面显示面板。通过第一液晶面板（10）的第一像素结构层驱动第一液晶层（103）的偏转方向，进而控制背光模组（30）的光线的偏振特性，从而使得第二液晶面板（20）实现绝对的黑态，提高液晶显示装置的对比度。
Patent WO-2021120078-A1 (WO)
Title: 癫痫发作预警方法及系统
Inventor: ZHU LICHEN
IPC: G16H50/30
Filed: 2019-12-19
Abstract: 一种癫痫发作预警方法及系统，涉及人工智能技术领域，方法包括：获取用户的健康数据（S110）；根据获取到的健康数据提取第一特征参数（S120）；将提取到的第一特征参数输入至预设的癫痫发作概率估算模型，得到癫痫发作概率（S130）；癫痫发作概率估算模型为通过多个患者的历史健康数据训练分类模型所生成；患者的历史健康数据包括患者癫痫发作前的健康数据；根据癫痫发作概率确定是否发出癫痫发作预警通知（S140）。系统是配置为执行该方法的系统。采用上述技术方案能够实现癫痫发作预警。
Patent WO-2021134362-A1 (WO)
Title: Loudspeaker
Inventor: HU HOMGJIAN
IPC: H04R9/02
Filed: 2019-12-30
Abstract: The present application provides a loudspeaker, comprising a basin frame with an accommodation space, a vibration system and a magnetic circuit system accommodated in the accommodation space; the magnetic circuit system comprises a lower splint, a main magnet steel and a secondary magnet steel fixed on the lower splint, and an upper splint fixed on the secondary magnetic steel, the secondary magnet steel and the main magnet steel are spaced apart to form a magnetic gap; the upper splint comprises a fixed part fixedly connected to the secondary magnetic steel, a connecting part connected to the fixed part, an extension arm extending from the connecting part toward the direction close to the main magnetic steel, and a magnetic permeability enhancement arm bending and extending from the extension arm toward the direction close to the lower splint. The magnetic permeability reinforcement arm provided in the present application can increase the magnetic permeability between the upper splint and the lower splint, improve the performance of the entire magnetic circuit system, thereby improving the performance of the loudspeaker.
Patent WO-2020143529-A1 (WO)
Inventor: XING YANPING
IPC: H04W72/14
Filed: 2020-01-02
Abstract: 本公开提供一种调度处理方法、装置及设备，涉及通信领域。该方法包括：接收第一PDCCH和第二PDCCH；在第一PDCCH的接收时间早于第二PDCCH的接收时间，且所述第一PDCCH调度的数据信道的结束时间晚于所述第二PDCCH调度的数据信道的起始时间的情况下，若所述第一PDCCH调度的数据信道满足第一预设条件，则停止或跳过所述第一PDCCH调度的PDSCH的解码或PUSCH的发送；若所述第一PDCCH调度的数据信道满足第二预设条件，则执行所述第一PDCCH调度的PDSCH的解码或PUSCH的发送。
Patent WO-2020151510-A1 (WO)
Inventor: LU JING
IPC: H04N21/422
Filed: 2020-01-13
Abstract: The present invention provides a video playback control method and a terminal. The terminal comprises a first touch screen and a second touch screen provided opposite to the first touch screen. The video playback control method comprises: under the condition that the first touch screen displays a video playback interface, if the terminal satisfies a preset condition, activating a video playback control function of the second touch screen, wherein the preset condition at least comprises that the second touch screen is in a screen lock state; receiving a first input on the second touch screen; and in response to the first input, adjusting the playback state of the video.
Patent WO-2021168680-A1 (WO)
Inventor: LIN CHI-CHIEN
IPC: H02K1/32
Filed: 2020-02-26
Abstract: Disclosed are a rotary motor and a rotor assembly thereof. The rotary motor comprises a stator assembly and a rotor assembly. The rotor assembly is arranged corresponding to the stator assembly. The rotor assembly comprises a rotor body, a first end cover, and a second end cover. The rotor body comprises a plurality of flow guide through holes penetrating along the axial direction of the rotor body. The first end cover corresponds to one end of the rotor body. The first end cover comprises a first cover body and a plurality of first flow guide structures disposed on the first cover body. The second end cover corresponds to the other end of the rotor body. The second end cover comprises a second cover body and a plurality of second flow guide structures disposed on the second cover body. When the rotor assembly rotates along a rotation direction, the first flow guide structures and/or the second flow guide structures can guide an airflow to flow in the plurality of flow guide through holes. Thus, the present invention achieves the effect of improving the heat dissipation efficiency of the rotary motor.
Patent WO-2020187011-A1 (WO)
Title: Speaker structure and display device
Inventor: ZHANG YONG
IPC: H04N5/64
Filed: 2020-03-03
Abstract: Provided are a speaker structure and display device; the speaker structure (2000) comprises a main speaker (100), an auxiliary speaker (200), a first drive mechanism (300), and a second drive mechanism (400); the auxiliary speaker (200) is connected to the main speaker (100) in such a manner that same can be displaced relative to the main speaker (100); the first drive mechanism (300) is used for driving the main speaker (100) to move reciprocatingly in a first direction, and the second drive mechanism (400) is used for driving the auxiliary speaker (200) to move reciprocatingly in a second direction relative to the main speaker (100); the first drive mechanism (300) is built into the main speaker (100), the second drive mechanism (400) is built into the main speaker (100), the output terminal of the second drive mechanism (400) extends out of the main speaker (100), and the auxiliary speaker (200) is connected to the output terminal.
Patent WO-2020182132-A1 (WO)
Inventor: HU XIAOBO
IPC: G01S17/02
Filed: 2020-03-11
Abstract: La présente invention concerne un circuit d'attaque et un procédé d'attaque de dispositif laser, et un système de radar laser. Le circuit d'attaque comprend au moins deux circuits de stockage d'énergie de charge, au moins deux premiers éléments de commutation et un circuit de commande, les extrémités de sortie des circuits de stockage d'énergie de charge étant électriquement connectées aux premières extrémités des premiers éléments de commutation de manière biunivoque, et les secondes extrémités des premiers éléments de commutation étant toutes électriquement connectées à un dispositif laser ; les extrémités d'entrée des circuits de stockage d'énergie de charge et les extrémités de commande des premiers éléments de commutation sont toutes électriquement connectées au circuit de commande ; le circuit de commande charge chaque circuit de stockage d'énergie de charge pendant une première durée prédéfinie, et commande séquentiellement la conduction de chaque premier élément de commutation pendant une deuxième durée prédéfinie ; et il y a un intervalle d'une troisième durée prédéfinie entre un moment de début de charge d'un circuit de stockage d'énergie de charge ultérieur et un moment de conduction d'un premier élément de commutation correspondant, ou des heures de début de charge de tous les circuits de stockage d'énergie de charge sont les mêmes.
Patent WO-2021008159-A1 (WO)
Title: 一种适用于提拉法的线圈可移动式温场结构与单晶生长方法
Inventor: DING YUCHONG
IPC: C30B15/14
Filed: 2020-03-23
Abstract: 本发明公开了一种适用于提拉法的线圈可移动式温场结构与单晶生长方法，温场结构包括由保温材料构成的生长腔室，在生长腔室内设有坩埚，在生长腔室外部环设有感应线圈，还包括后加热筒、支撑架和升降装置，后加热筒设置在生长腔室内并位于坩埚上方，后加热筒可在感应线圈作用下发热，支撑架设置在升降装置上，感应线圈放在支撑架上，升降装置通过支撑架可带动感应线圈升降。本发明通过移动感应线圈的相对位置来调节坩埚与后加热筒的发热量，既可以保证在晶体生长阶段能在固液界面处构置较大的温度梯度，又可以在降温阶段对晶体的头部和尾部同时进行热量补偿，减弱了晶体尾部与头部的温度差异，达到抑制晶体开裂的目的。
Patent WO-2021189203-A1 (WO)
Inventor: WANG JIN
IPC: G06F12/0873
Filed: 2020-03-23
Abstract: Provided are a bandwidth equalization method and apparatus. The method comprises: monitoring the frequency of access to a plurality of caches; determining a cold spot cache and a hot spot cache from among the plurality of caches; determining hot spot information in the hot spot cache; and recording first index information of the hot spot information and identification information of the cold spot cache in a target table entry, with the target table entry being a table entry in a redirection data table. In the present application, the problem of uneven distribution of requests is greatly alleviated, thereby improving the problem of serious imbalances in bandwidth acquisition, and improving the performance of information acquisition.
Patent WO-2021168958-A1 (WO)
Inventor: LI TINGHUA
IPC: A24F40/00
Filed: 2020-03-25
Abstract: A molecular resonance composite smoking set, comprising a host (1), a molecular resonance atomizer (2), and a molecular resonance heater (3). The molecular resonance atomizer (2) and the molecular resonance heater (3) are provided in the upper part of the host (1), an isolation plate (4) is provided in the middle of the molecular resonance atomizer (2) and the molecular resonance heater (3), and the molecular resonance atomizer (2) and the molecular resonance heater (3) are conducted by means of an airflow channel (5). The molecular resonance composite smoking set fully mixes the e-liquid atomized smoke generated on the basis of the molecular resonance energy with the cigarette roasting smoke for smoking by a user, and has advantages of cotton-free design, non-contact atomization, good heat uniformity, high heat utilization rate, fast heating rate, etc.
Patent WO-2020211696-A1 (WO)
Inventor: XUE RONGSHENG
IPC: F16H59/02
Filed: 2020-04-09
Abstract: A dual-overrunning clutch shaft sleeve output adaptive automatic transmission main shaft assembly, a gearbox, and a drive system, comprising a main shaft (1), and a transmission system and a power output sleeve on the main shaft (1), the transmission system comprising a low-speed gear power input member, a reverse gear power input member, and an adaptive transmission assembly; the reverse gear power input member has a transmission ratio I and the low-speed gear power input member has a transmission ratio II, transmission ratio I being greater than or equal to transmission ratio II; using the rational engagement of two overrunning clutches, the transmission ratios of the reverse gear structure and the low-speed gear mechanism are set rationally so that the entire structure is simple and compact and interference does not occur, ensuring overall performance and transmission stability; using the output power of the shaft sleeve, the output part can be selected according to requirements, being applicable to the field of electric vehicles and also applicable to the field of other variable torque mechanical transmissions; in addition, the shaft sleeve output can also ensure a large output torque.
Patent WO-2021207973-A1 (WO)
Title: Systems and methods for recognizing objects and removing contaminants therefrom
Inventor: WANG MINGYU
IPC: G06K17/00
Filed: 2020-04-15
Abstract: Systems and methods for removing contaminants from an object are provided. The system can comprise a container (110) having an interior space configured to receive therein at least the object; at least one imaging sensor (310, 410) configured to capture an image of at least a portion of the object; one or more processors (320, 420) individually or collectively configured to recognize the object based on the image; and a contaminant removal unit (340, 440) configured to remove the contaminant from the object based at least in part on the recognized object. The object to be cleaned can be recognized by an imaging sensor (310, 410), and the property of the object can be determined by using an auxiliary sensor and/or accessing a database (330, 430) with less or no user input. Therefore, the object can be cleaned with an optimized cleaning procedure having customized parameters which are capable of removing the contaminants with improved efficiency and thoroughness.
Patent WO-2021057019-A1 (WO)
Title: Electronic expansion valve
Inventor: ZHAN SHAOJUN
IPC: F16K1/00
Filed: 2020-04-23
Abstract: An electronic expansion valve, comprising: a housing (10); a guide sleeve (20) and a screw (50) provided in the housing (10); a rotor (40) rotatably provided in the housing (10), the rotor (40) being in drive connection with the screw (50); a valve needle assembly (60) movably provided in the housing (10), one end of the screw (50) being connected to the valve needle assembly (60) so as to drive the valve needle assembly (60) to move axially by means of the screw (50); a guide segment and a press-fit segment which are in communication with each other are provided between an inner wall of the housing (10) and an outer wall of the guide sleeve (20), the spacing between the guide sleeve (20) and the housing (10) located on the guide segment is greater than the spacing between the guide sleeve (20) and the housing (10) located on the press-fit segment, a welding ring groove (213) is also provided between the inner wall of the housing (10) and the outer wall of the guide sleeve (20), and the welding ring groove (213) is in communication with the guide segment. The electronic expansion valve can solve the problem of low coaxiality in the prior art.
Patent WO-2020249067-A1 (WO)
Inventor: ZHANG YE
IPC: H03B5/02
Filed: 2020-06-12
Abstract: La présente invention concerne un procédé d'étalonnage d'un oscillateur à quartz, comprenant : la collecte d'au moins deux ensembles de valeurs de température dans un intervalle de temps prédéfini et de la valeur d'écart de fréquence d'un oscillateur à quartz au niveau des au moins deux ensembles de valeurs de température, le premier intervalle de temps étant supérieur à un premier seuil ; sur la base des au moins deux ensembles de valeurs de température et de la valeur d'écart de fréquence de l'oscillateur à quartz au niveau des au moins deux ensembles de valeurs de température, déterminer une première constante ; et, sur la base de la première constante, calculer l'écart de fréquence de l'oscillateur à quartz afin de mettre en œuvre l'étalonnage de l'écart de fréquence. La présente invention concerne également un appareil de calibration d'un oscillateur à quartz, un dispositif terminal, et un support de stockage.
Patent WO-2021068556-A1 (WO)
Inventor: LIU ZHU
IPC: A01N63/20
Filed: 2020-06-23
Abstract: 一种耐硼赖氨酸芽孢杆菌(Lysinibacillus boronitolerans)在抑制稻瘟病菌(Magnaporthe oryzea)生长的应用。耐硼赖氨酸芽孢杆菌(Lysinibacillus boronitolerans)不仅可以很大程度上降低稻瘟病的发生和危害，而且对生态环境没有影响，有望作为合成生物学研究的优质底盘微生物，为稻瘟病的防治带来新的方向。
Patent WO-2021012951-A1 (WO)
Inventor: LIN SHANGBO
IPC: H02J50/00
Filed: 2020-07-08
Abstract: Disclosed are a wireless charging apparatus, method and system. The wireless charging apparatus comprises: a charging interface; a wireless transmitting circuit, configured to convert electric energy output by a power supply apparatus into an electromagnetic signal for transmission to wirelessly charge a device to be charged; and a control module, configured to communicate with said device by means of the wireless transmitting circuit to determine a first wireless charging mode or a second wireless charging mode as a wireless charging mode to be employed, and further configured to periodically detect, in the first wireless charging mode, whether an exit from the first wireless charging mode occurs. When an exit from the first wireless charging mode is detected, the current wireless charging mode is adjusted to be the second wireless charging mode.
Patent WO-2021253527-A1 (WO)
Title: Hfo2-based ferroelectric capacitor and preparation method therefor, and hfo2-based ferroelectric memory
Inventor: LUO QING
IPC: H01L49/02
Filed: 2020-07-09
Abstract: An HfO 2 -based ferroelectric capacitor and a preparation method therefor, and an HfO 2 -based ferroelectric memory, relating to the technical field of microelectronics. The purpose of enlarging a storage window of the ferroelectric memory is achieved by inserting an Al 2 O 3  intercalation layer having a coefficient of thermal expansion smaller than TiN between a dielectric layer and an upper electrode (TiN) of the ferroelectric capacitor. The HfO 2 -based ferroelectric capacitor comprises a substrate layer (1), a lower electrode (2), a dielectric layer (3), an Al 2 O 3  intercalation layer (4), an upper electrode (5) and a metal protection layer (6) from bottom to top. The size of the storage window can be increased, information misreading is effectively prevented, and therefore, the reliability of the memory is improved.
Patent WO-2021013193-A1 (WO)
Inventor: XIA HAN
IPC: G06K9/00
Filed: 2020-07-22
Abstract: 本申请公开了人工智能领域中涉及自动驾驶技术的一种交通灯的识别方法及装置，识别装置根据车辆当前的定位信息、图像传感器的标定参数以及预先存储的地图数据，确定n个第一交通灯在第一图像中的位置信息，以及采用图像检测方法对第一图像进行检测，得到m个第二交通灯在第一图像中的位置信息，以及m个第二交通灯的指示信息，指示信息包括颜色和语义指示信息中的至少一个；后续，识别装置根据n个第一交通灯在第一图像中的位置信息和m个第二交通灯在第一图像中的位置信息，基于预设的误差约束，确定相互匹配的第一交通灯和第二交通灯，并获取与第一交通灯匹配的第二交通灯的指示信息，有效地降低了识别交通灯的误差，提高了识别的准确度。
Patent WO-2021135192-A1 (WO)
Title: User curiosity-based bayesian personalized ranking recommendation method
Inventor: CAI YI
IPC: G06F16/9535
Filed: 2020-07-28
Abstract: A user curiosity-based Bayesian personalized ranking recommendation method, comprising the following steps: using a data set with a friend relationship, and traversing historical data of each user in the data set; for each user u in the data set, constructing a positive user-item set P u  of the user u, and a curiosity user-item set C u  of the user u and a negative user-item set N u  of the user u; providing an optimized ranking criterion, and acquiring a user matrix P and an item matrix Q; for each user u, randomly selecting items from P u , C u , and N u  to form item pairs (positive, negative) and (curiosity, negative) for training, and continuously updating the user matrix P and the item matrix Q during each training iteration; and performing predictive scoring on all the items having no feedback from the user u, and selecting top N items having the highest scores for recommendation.
Patent WO-2022021142-A1 (WO)
Inventor: LIU JIANHUA
IPC: H04W4/70
Filed: 2020-07-29
Abstract: The present application relates to the field of communication technology and discloses a QOS parameter configuration method and apparatus, a communication device, and a storage medium. Said method is applied in a first terminal, and comprises: according to a correspondence relationship, determining first quality of service (QoS) information corresponding to a service, the correspondence relationship comprising: a correspondence relationship between first information and the first QoS information, the first information comprising access scenario information, and the access scenario information being used for indicating an access scenario of the first terminal; and sending the first QoS information to a peer device, the first QoS information being used for configuring a QoS parameter between the first terminal and the peer device.
Patent WO-2021027602-A1 (WO)
Inventor: LIANG TAO
IPC: H01M10/0587
Filed: 2020-07-31
Abstract: Disclosed are an electrode assembly (1), a secondary battery, and an apparatus using the battery. The electrode assembly (1) comprises a negative plate (11), a positive plate (12), and an isolating membrane (13), with the negative plate (11), the isolating membrane (13) and the positive plate (12) being arranged in a superposed manner and being wound around a winding center, wherein the negative plate (11) is provided with a first inner layer section (111), the positive plate (12) is provided with a second inner layer section (121), the first inner layer section (111) and the second inner layer section (121) are next to the winding center, the first inner layer section (111) is provided with a notch portion (111A), and the first inner layer section (111) is arranged opposite the second inner layer section (121) by means of the notch portion (111A).
Patent WO-2021023190-A1 (WO)
Inventor: QIU CHANGPING
IPC: G06F17/18
Filed: 2020-08-04
Abstract: Disclosed in the embodiments of the present application are a proximity sensor-based noise floor adjustment processing method and apparatus, and a computer device. Said method comprises: identifying a working environment of a proximity sensor; when the working environment is an unlit environment, acquiring a variety of raw data acquired by the proximity sensor; generating a raw data set by using the variety of original data acquired within a preset time period; comparing the variety of raw data in the raw data set to obtain target raw data; and adjusting the current noise floor corresponding to the proximity sensor by using the target raw data that satisfies a preset condition.
Patent WO-2022032571-A1 (WO)
Inventor: FU TING
IPC: H04W24/02
Filed: 2020-08-13
Abstract: 本公开实施例是关于资源配置方法、装置、通信设备和存储介质，基站配置基于帧的设备(FBE)参数，其中，所述FBE参数，包括：指示进行空闲信道评估(CCA)的频域资源的频域参数。
Patent WO-2022011783-A1 (WO)
Title: Boom, boom assembly and work machine
Inventor: XIE SHIHUI
IPC: E04G21/02
Filed: 2020-08-24
Abstract: A boom (1), a boom assembly (2), and a work machine (3). The work machine (3) comprises a boom support structure (30) and the boom assembly (2) connected to the boom support structure (30); the boom assembly (2) comprises a plurality of first booms (20) hinged to one another, at least one first boom (20) being the boom (1); the boom (1) has a box-shaped structure and comprises a body (10), the body (10) comprising a first body portion (100) and a second body portion (102), the first body portion (100) and the second body portion (102) overlapping each other to enclose and form the box-shaped structure. The boom (1) can be designed to have a light weight, and a split-type design facilitates simplifying a mold, improving the versatility of a mold, alleviating the inconsistency of thermal deformation of the boom (1), and facilitating later maintenance.