baber/WOPTO huggingface dataset:
Patent WO-2021248937-A1 (WO)
Inventor: ZHOU CHI
IPC: G06F21/62
Filed: 2021-02-22
Abstract: Disclosed are a geographically distributed graph computing method and system based on differential privacy. The method comprises: performing, by using a preset processing model, graph computing on a geographically distributed graph on the basis of differential privacy, and according to an index allocation mechanism, allocating a budget for each round of iteration; adding an aggregator to a DC to collect data that needs to be sent to adjacent DCs, adding all of the data and adding noise corresponding to the present round of iteration, dividing the data evenly, and sending same to the adjacent DCs; each DC receiving data sent by other DCs after the previous round of iteration, and updating an effective value of a vertex, and repeating the step of adding an aggregator to the DC to collect the data that needs to be sent to the adjacent DCs, adding all of the data and adding noise corresponding to the present round of iteration, dividing the data evenly and sending same to the adjacent DCs, and the iteration ending until a convergence condition is satisfied; and each DC performing data transmission between distributed graphs according to a processing model that satisfies the convergence condition. In the present application, the introduction of noise is reduced without affecting a protection effect, thereby improving the convergence capability of iteration, and also greatly improving the availability of data.
Patent WO-2022057208-A1 (WO)
Title: Information processing apparatus and display device
Inventor: TANOUE SHINGO
IPC: H04N21/431
Filed: 2021-02-24
Abstract: In embodiments of the present application, an acquisition unit acquires an audio-visual quantity in a reference range and an audio-visual quantity in a comparison object range compared with the reference range, and a calculation unit calculates an audio-visual quantity difference between the acquired audio-visual quantity in the reference range and audio-visual quantity in the comparison object range. Moreover, a generation unit generates difference value information indicating the audio-visual quantity difference. According to the embodiments of the present application, audio-visual quantities and the like can be efficiently analyzed.
Patent WO-2022178779-A1 (WO)
Inventor: LI MINGJU
IPC: H04W72/04
Filed: 2021-02-25
Abstract: 本申请提出了一种波束指示方法及装置，涉及通信技术领域。该方案为：接收第一控制信令，其中，所述第一控制信令用于确定目标通用波束，所述目标通用波束用于第一目标通用波束组内的成员的传输；采用所述目标通用波束传输所述至少一个成员。本申请中，终端设备可根据第一控制信令，确定目标通用波束对应的第一目标通用波束组，目标通用波束用于第一目标通用波束组内的成员的传输，即终端设备可根据第一控制信令确定目标通用波束与第一目标通用波束组的对应关系，从而有助于提高基于通用波束传输的信号质量。
Patent WO-2022183438-A1 (WO)
Inventor: SUN XUEFEI
IPC: G06F3/044
Filed: 2021-03-04
Abstract: 一种触控电极结构、显示面板和电子设备。该触控电极结构包括多个第一触控电极和多个第二触控电极；第一触控电极沿第一方向排列且沿第二方向延伸；第二触控电极沿第二方向排列且沿第一方向延伸；第一触控电极包括沿第二方向排列的多个第一触控子电极；第一触控子电极包括由多个金属网格形成的网格状结构，网格状结构包括第一网格部分和多个第二网格部分，第一网格部分用于传输触控信号，第二网格部分与第一网格部分之间彼此间隔且彼此绝缘；在各第一触控子电极中，第二网格部分沿第一触控子电极的至少一个边缘的延伸方向呈周期排布。由此，实现对触控电极结构的电学性能和光学性能的同步优化。
Patent WO-2022213390-A1 (WO)
Inventor: LIU XIAOFEI
IPC: H04W48/16
Filed: 2021-04-09
Abstract: 一种适用于终端的信息发送方法，方法包括：确定小区所支持的切片的相关信息（S101）；通过接入层将相关信息发送至非接入层（S102）。终端可以确定小区支持的切片的相关信息，例如切片的标识、支持切片的小区标识、支持切片的小区的信号质量等，进而可以通过接入层将相关信息发送至非接入层，使得非接入层可以参考相关信息来确定切片并提供给接入层，以便终端能够接入支持非接入层所提供的切片的小区，有利于保证较好的通信效果。
Patent WO-2021208836-A1 (WO)
Inventor: ZHOU HUAN
IPC: H04L1/00
Filed: 2021-04-12
Abstract: 本申请实施例公开了一种HARQ-ACK反馈方法及装置，包括如下步骤：终端在满足预设条件时，采用联合反馈方式发送半静态性调度物理下行共享信道SPS PDSCH HARQ-ACK；所述终端配置有2个控制资源集合池索引CORESETpoolIndex；所述SPS PDSCH HARQ-ACK的比特顺序为：每服务小区索引且每CORESETpoolIndex，按SPS配置索引内HARQ-ACK的升序排列；每CORESETpoolIndex按服务小区索引内HARQ-ACK的升序排列；将CORESETpoolIndex按HARQ-ACK升序排列。本申请的技术方案具有提高网络性能的优点。
Patent WO-2021213487-A1 (WO)
Inventor: KEH EDWIN YEE-MAN
IPC: D06M101/10
Filed: 2021-04-23
Abstract: Disclosed in the present application is a method for reducing fuzzing and pilling of an animal textile. The method comprises the following steps: 1) detecting the water content of an animal textile, 2) regulating and controlling the water content of the animal textile, and 3) carrying out a plasma treatment on the animal textile, such that a difference between forward and reverse scale friction coefficients of animal wool fibers is reduced, thereby achieving the effect of resisting fuzzing and pilling.
Patent WO-2021227881-A1 (WO)
Inventor: CHANG NINGJUAN
IPC: H04W76/19
Filed: 2021-04-28
Abstract: The present invention provides a method for recovering a link failure during handover and a corresponding user equipment (UE). The method executed in the UE comprises: after a handover process of a dual active protocol stack configured for the UE is successful, if a radio link failure (RLF) of a main cell group occurs in the UE, the UE performs, in a radio resource control reestablishment process for connection recovery or when an RLF occurs in a source link, an operation of returning to a single active protocol stack from the dual active protocol stack and releases a protocol stack and configuration associated with a source base station; when the link quality of the source base station is good, the UE releases a protocol stack and configuration associated with a target base station, recovers a single connection state with the source base station, and reports failure information to a base station.
Patent WO-2022183590-A1 (WO)
Title: Flow guide control system
Inventor: LI XIAOKUN
IPC: A61M1/16
Filed: 2021-05-08
Abstract: A flow guide control system, comprising a catheter (2), an adjustment device (3), a monitoring device (6), and a controller (7). The catheter (2) is provided with an outlet (24), an inlet (23) and a side hole (25). The adjustment device (3) comprises a movable member (4) and a driving member (5). The movable member (4) is arranged inside the catheter (2). The driving member (5) connects the movable member (4) and the controller (7). The controller (7) is used for controlling the driving member (5) according to an activity cycle, so that the driving member (5) drives the movable member (4) to switch between a first state and a second state, thereby ensuring the flow direction of fluid inside a channel matches the activity cycle of a target object, and achieving the effect of flexible adjustment of flow direction and flow rate on the basis of the activity cycle of the target object.
Patent WO-2022022001-A1 (WO)
Inventor: WU TAIYI
IPC: G06T3/00
Filed: 2021-05-12
Abstract: Disclosed are a method for compressing a style transfer network, and a style transfer method, apparatus and system. The style transfer method comprises: after content feature maps corresponding to a content image and style feature maps corresponding to a style image are obtained, respectively sorting the content feature maps and the style feature maps channel by channel; acquiring order statistic information of the sorted content feature maps, and resorting the sorted style feature maps according to the order statistic information; and generating a style transfer image according to the content feature maps before sorting and the resorted style feature maps.
Patent WO-2021258888-A1 (WO)
Inventor: XIE YONGXIAN
IPC: G11C19/28
Filed: 2021-05-12
Abstract: A shift register, a gate driving circuit, and a display panel. In the shift register, a forward input module (1) is used for providing a signal of a forward power supply voltage end (VNN) to a first node (PU) by means of a first transistor (M1) and a second transistor (M2) in sequence under the control of a forward input end; a reverse input module (2) is used for providing a signal of a reverse power supply voltage end (VBB) to the first node (PU) by means of a third transistor (M3) and a fourth transistor (M4) in sequence under the control of a reverse input end; an output module (4) is used for providing a signal of a clock signal end (CLK) to an output end under the control of the first node (PU), or providing a signal of a first reference signal end (VGL) to the output end under the control of a second node (PD); a node control module (3) is used for controlling potentials of the first node (PU) and the second node (PD) to be opposite; and a leakage prevention module (5) is used for transmitting the signal of the first reference signal end (VGL) to the position between the first transistor (M1) and the second transistor (M2) and the position between the third transistor (M3) and the fourth transistor (M4) respectively under the control of the clock signal end (CLK).
Patent WO-2021238775-A1 (WO)
Inventor: LIN HAO
IPC: G06F3/0484
Filed: 2021-05-21
Abstract: 本申请公开了一种显示方法、显示装置及电子设备，属于通信技术领域。该方法包括：若电子设备在目标状态下接收到第一应用的第一消息，则显示第一应用的图标；该目标状态为锁屏状态或熄屏状态；接收第一输入；若第一输入为预设输入，则响应于第一输入，在目标状态下显示第一消息的第一内容；其中，该第一内容包括以下至少一项：第一消息的发件人信息、第一消息的消息内容中符合预设类型的部分消息内容。
Patent WO-2022095437-A1 (WO)
Inventor: YANG WEI
IPC: G06Q10/02
Filed: 2021-06-03
Abstract: 提供了一种非免疫规划疫苗智能化预订的方法，包括：疫苗终端管理平台在家长发起对儿童疫苗预定终端的疫苗进行预定时，采集儿童疫苗预定终端的当前疫苗预定参数信息；家长根据实际需要对儿童疫苗预定终端获取到的当前非免疫规划疫苗的预定参数信息进行配置预定，并将提交配置预定内容发送给疫苗终端管理服务器；疫苗终端管理服务器利用接收到的配置预定内容产生并存储配置预定信息，发送给疫苗终端管理平台；疫苗终端管理平台接收到配置预定信息后，通过疫苗接种配置模块对儿童疫苗预定终端的提交配置预定内容进行疫苗预定配置。解决了以往非免疫规划疫苗供需双方信息不畅通、服务不协调的问题。
Patent WO-2022001958-A1 (WO)
Inventor: SUN FEI
IPC: H04W24/02
Filed: 2021-06-28
Abstract: 本申请实施例提供一种计算服务的实现方法和装置，该方法包括：第一无线接入网RAN设备获取第一通信设备的计算能力信息；第一RAN设备向第一通信设备发送第一请求，第一请求用于请求第一通信设备执行第一RAN设备的计算服务；第一RAN设备接收来自第一通信设备的第一响应，第一响应用于指示所述第一通信设备接纳的所述第一RAN设备的计算服务；以及第一RAN设备与第一通信设备交互第一通信设备接纳的第一RAN设备的计算服务的数据。通过该方法和装置，使得第一RAN设备利用第一通信设备执行其计算服务，有效利用网络资源。
Patent WO-2022002042-A1 (WO)
Title: Access request distribution method, and server, computer-readable storage medium and cluster system
Inventor: ZHU JINGFEI
IPC: G06F8/71
Filed: 2021-06-29
Abstract: An access request distribution method, and a server, a computer-readable storage medium and a cluster system. The method comprises: in response to an access request sent by a user terminal which is about to perform access, determining a target system corresponding to said user terminal, wherein the target system is one of an Nth generation system and an Mth generation system, N > M, and both N and M being positive integers (S100); and according to the determined target system, distributing the access request to a target server, wherein the target server is one of at least one server on which the target system is deployed, such that the user terminal, which sent the access request, accesses the target server; and some of a plurality of user terminals access a server on which the Mth generation system is deployed, and the remaining user terminals access a server on which the Nth generation system is deployed (S200).
Patent WO-2022028160-A1 (WO)
Title: Start control method and apparatus, and vehicle
Inventor: ZHOU MINGWANG
IPC: B60W20/00
Filed: 2021-06-30
Abstract: A start control method, applied in a hybrid vehicle. The hybrid vehicle comprises a power battery. The start control method comprises: obtaining the state of charge value of a power battery; determining a target start mode according to the state of charge value of the power battery; and controlling to complete the whole vehicle start according to a start process corresponding to the target start mode, the target start mode comprising a pure electric start mode, an engine start mode, and a fuel start mode. According to the start control method, in the whole vehicle start process, starting can be respectively made according to start processes corresponding to the pure electric start mode, the engine start mode, and the fuel start mode, which can improve the accuracy and timeliness of vehicle control, and improve the user vehicle experience. Also disclosed are a start control apparatus, a vehicle, a computing device, a computer program, and a computer readable medium.
Patent WO-2023272705-A1 (WO)
Inventor: WU ZHIBIN
IPC: H04W74/08
Filed: 2021-07-01
Abstract: The present application relates to devices and components including apparatus, systems, and methods for secure random access in wireless communication systems.
Patent WO-2022100133-A1 (WO)
Inventor: BAO HUJUN
IPC: G06K9/62
Filed: 2021-07-16
Abstract: 一种场景识别方法、装置、智能设备及存储介质，所述场景识别方法包括：获取待处理图像以及待处理图像对应的语义掩码图；其中，待处理图像包括查询图像及待识别图像（S11），所述待处理图像对应的语义掩码图包括所述查询图像的语义掩码图和所述待识别图像的语义掩码图；根据语义掩码图对待处理图像进行特征聚合处理，得到待处理图像的特征向量（S12）；利用待处理图像的特征向量从待识别图像中确定与查询图像的场景匹配的图像（S13）。如此，能够通过语义掩码图降低干扰因素特征对特征识别的干扰，进而提高场景识别的鲁棒性。
Patent WO-2022042161-A1 (WO)
Title: Central coupler applicable to collision energy management system and locomotive having same
Inventor: ZHANG JIANGTIAN
IPC: B61G7/10
Filed: 2021-07-23
Abstract: The present disclosure relates to the technical field of railway locomotives, and provides a central coupler applicable to a collision energy management system and a locomotive having same. The central coupler applicable to a collision energy management system comprises a coupler buffering device, a coupler box body and a follower plate base; the coupler buffering device comprises a buffer, the coupler box body is mounted on a chassis of the locomotive, the coupler buffering device is connected to the follower plate base, the follower plate base is connected to the coupler box body, and when an impact force borne by the coupler buffering device is greater than a connection force between the follower plate and the coupler box body, the follower plate base is separated from the coupler box body, and the coupler buffering device drives the follower plate base to move relative to the coupler box body. The collision resistance and safety of the locomotive can be improved by means of the coupler buffering device, the coupler box body and the follower plate base.
Patent WO-2022142309-A1 (WO)
Title: Station de base et système de nettoyage
Inventor: ZHOU WEI
IPC: A47L11/40
Filed: 2021-07-28
Abstract: L'invention concerne une station de base (100) et un système de nettoyage. La station de base (100) comprend : un boîtier (1), une partie de nettoyage (2) et un canal d'écoulement de ventilation. Le boîtier (1) comprend en outre une cavité de nettoyage (11) et un espace de réception (12). L'espace de réception (12) est disposé sur la partie inférieure du boîtier (1). La cavité de nettoyage (11) est disposée en dessous de l'espace de réception (12), et est en communication avec l'espace de réception (12). La partie de nettoyage (2) est disposée dans la cavité de nettoyage (11), et est utilisée pour nettoyer un organe de nettoyage d'un dispositif à nettoyer situé dans l'espace de réception (12). Le canal d'écoulement de ventilation est disposé dans le boîtier (1). Une extrémité d'entrée d'air du canal d'écoulement de ventilation est reliée à un dispositif d'entraînement, et une extrémité de sortie d'air du canal d'écoulement de ventilation s'étend dans l'espace de réception (12) et est disposée en direction de la cavité de nettoyage (11). La station de base (100) étant pourvue du canal d'écoulement de ventilation, une fois que la partie de nettoyage (2) a nettoyé le dispositif à nettoyer, la cavité de nettoyage (11) et l'organe de nettoyage dudit dispositif peuvent être simultanément séchés au moyen du canal d'écoulement de ventilation.
Patent WO-2023010407-A1 (WO)
Inventor: MU QIN
IPC: H04W48/08
Filed: 2021-08-05
Abstract: 本公开提供了一种接收或发送系统消息的方法、装置及可读存储介质，应用于无线通信技术领域，接收系统消息的方法包括：接收专用系统消息；其中，所述专用系统消息包含终端接入小区所需的系统参数，所述系统参数包括以下中的至少一种：用于确定是否允许接入小区的第一参数、用于进行小区接入的第二参数。本公开中，可以将终端接入小区所需的系统参数作为终端的小区级参数，并且为终端接入小区所需的系统参数设置专用系统消息，由此使用此专用系统消息只承载终端接入小区所需的系统参数，从而可以根据终端接入小区所需的系统参数的信息量确定专用系统消息的容量，使得该此专用的承载消息的容量更合理，防止了浪费空口资源。
Patent WO-2022033475-A1 (WO)
Inventor: YANG KUN
IPC: H04W74/00
Filed: 2021-08-10
Abstract: 本申请公开了一种随机接入的信号传输方法、终端及网络侧设备，属于通信技术领域。该方法包括：向网络设备发送N次第一消息，N为大于1的整数；在接收窗口内接收网络设备发送的响应信息，接收窗口是在发送N次第一消息中的第n次发送第一消息后开启的，n为整数，且1≤n≤N。
Patent WO-2022068492-A1 (WO)
Inventor: ZHAO HUIZHU
IPC: H04N21/45
Filed: 2021-08-27
Abstract: Disclosed herein are a video recommendation method and apparatus. The video recommendation method comprises: acquiring a video identifier of a target account historical operation, and determining the tag weight of each video tag among a plurality of video tags contained in a video corresponding to the video identifier; on the basis of the tag weight of each video tag, determining the video weight of each candidate video among a plurality of candidate videos in a preset candidate set; according to the video weight of each candidate video, selecting a target video from the candidate set for recommendation; and detecting a video tag that meets set conditions in an issued video, and according to the tag weight of the video tag that meets the set conditions, performing a weight reduction process on the candidate videos in the candidate set that contain the video tag that meets the set condition and that are not issued.
Patent WO-2023029065-A1 (WO)
Inventor: MA YING
IPC: G06F16/215
Filed: 2021-09-08
Abstract: 本发明公开了一种数据集质量评估方法、装置、计算机设备及存储介质，涉及信息技术领域，主要在于能够提高数据集质量的评估精度和评估效率。其中方法包括：获取数据集中的待评估数据；分别统计所述待评估数据在多个评估维度下的属性特征；基于所述多个评估维度下的属性特征，对所述待评估数据进行质量评估，得到所述待评估数据分别在所述多个评估维度下的质量评估结果。本发明适用于数据集质量的评估。
Patent WO-2022105398-A1 (WO)
Inventor: TENG WANXIU
IPC: G01L5/00
Filed: 2021-09-15
Abstract: Provided by the present invention are a dynamic force measuring system and force measuring method for rail vehicle collision. The dynamic force measuring system for rail vehicle collision comprises: a first flat plate, at least one sensor group and a uniform force plate, wherein each sensor group comprises at least two sensors, and the sensors are arranged at preset positions on one side surface of the first flat plate. The uniform force plate is located on the side of the sensors away from the first flat plate. As can be seen, in the present solution, the uniform force plate is arranged on one side surface of the sensor group, and impact stress is dispersed by means of the uniform force plate, so that the impact force acting on the sensors is reduced, thereby improving the impact resistance of the sensors. In addition to the foregoing, in the present solution, due to the existence of the uniform force plate, the sensors may also be distributed in some regions of the uniform force plate, so that the total number of sensors in the entire dynamic force measuring system is less than that in existing methods for tiling the sensors in sequence. Hence, the present solution may reduce system costs.
Patent WO-2022174585-A1 (WO)
Inventor: ZHUANG JIAN
IPC: H01M4/73
Filed: 2021-09-22
Abstract: The present application relates to the technical field of lead storage batteries and discloses a method for preparing a positive plate and a lead storage battery. The method for preparing a positive plate comprises the following steps: (1) preparing a positive plate grid; (2) soaking of the positive plate grid: soaking the positive plate grid in a cobalt phosphate suspension containing 100 parts of pure water and 3-5 parts of cobalt phosphate; (3) drying and cooling of the positive plate grid: first putting the soaked positive plate grid in an environment having a relative humidity of 70%-80% and a temperature of 50-60°C for standing for 3-5 h, then putting same in an environment having a relative humidity of 30%-40% and a temperature of 50-60°C for standing for 5-8 h, and finally putting same in an environment having a relative humidity of 30%-40% for lowering the temperature to room temperature within 2 h; (4) preparing a paste; and (5) coating. The positive plate grid prepared in the present application is more corrosion-resistant, and the discharge cycle service life of the prepared lead storage battery is prolonged.
Patent WO-2022078244-A1 (WO)
Title: Outbound delivery method and device for articles
Inventor: YANG WENXIANG
IPC: B65G1/04
Filed: 2021-10-08
Abstract: The present application discloses an outbound delivery method and device for articles. One specific embodiment of said method comprises: in response to receipt of a task set comprising a plurality of outbound delivery tasks, determining, in a plurality of storage regions, storage positions of articles to be subjected to outbound delivery in each outbound delivery task in the task set; according to the storage positions of said articles in each outbound delivery task, determining, from the plurality of storage regions, a target storage region corresponding to the task set; determining, in the target storage region, target storage positions for said articles in each outbound delivery task; and classifying said articles, the target storage positions of which belong to the same shelf in the same storage region, in the task set into the same pick-up task, and performing outbound delivery processing. Thus, with regard to a complex storage environment of a plurality of storage regions, the invention provides an outbound delivery method for articles, increasing the outbound delivery efficiency of the articles.
Patent WO-2022183747-A1 (WO)
Title: 空调器
Inventor: Lv Kelei
IPC: F24F13/22
Filed: 2021-10-25
Abstract: 一种空调器，所述空调器包括室内机（100）和室外机（200），还包括储水盒（1）和加湿单元，所述室内机（100）连接有室内机排水管（2），所述室外机（200）连接有室外机排水管（3），所述储水盒（1）分别与所述室内机排水管（100）和所述室外机排水管（200）相连通，使所述室内机排水管（100）和所述室外机排水管（200）内的水能够流入到所述储水盒（1）内，所述加湿单元与所述储水盒（1）相连。该空调器通过将室内机排水管（100）和室外机排水管（200）与储水盒（1）相连通，将室内机（100）和室外机（200）的冷凝水和化霜水收集到储水盒（1）内进行存储，以供加湿单元使用，无需频繁的补充加水，大大方便了用户对空调加湿功能的使用，提高了用户体验感。
Patent WO-2023070437-A1 (WO)
Inventor: HUNG HSUAN-YU
IPC: A61L2/26
Filed: 2021-10-28
Abstract: L'invention concerne un sac de désinfection et de stérilisation, comprenant : un corps de sac (100). Le corps de sac (100) présente une partie d'étanchéité (10), une partie de réception interne (20), deux bords latéraux (40), et une partie externe (30); la partie de réception interne (20) comprend une couche de protection (201), une couche réfléchissante (202), et une couche de circuit souple (203); la couche réfléchissante (202) étant disposée entre la couche de protection (201) et la couche de circuit souple (203); la couche de circuit souple (203) comprend une ou plusieurs sources de lumière (50) combinées à la couche réfléchissante (202) et à la couche de protection (201); et la partie d'étanchéité (10), la partie de réception interne (20) et les deux bords latéraux (40) forment un espace fermé de désinfection et de stérilisation.
Patent WO-2023070456-A1 (WO)
Inventor: LI MINGYUAN
IPC: G06T7/73
Filed: 2021-10-28
Abstract: A garage door state monitoring method and system, a monitoring device, and a storage medium. The garage door state monitoring method comprises the following steps: obtaining a current image, and determining whether the current image comprises an identification code image of a preset identification code (S101); if the current image comprises the identification code image, determining that a current state of a target garage door corresponding to the identification code image is a closed state (S102); if the current image does not comprise the identification code image, determining that the current state of the target garage door corresponding to the identification code image is an open state (S102); and generating a garage door event according to the current state, and performing an operation corresponding to the garage door event (S103). Thus, the safety of using the garage door is improved.
Patent WO-2022105738-A1 (WO)
Inventor: LATHAM JOSEPH WILSON
IPC: F04B49/06
Filed: 2021-11-16
Abstract: 一种用于操作压缩机（64, 100）的可变容量驱动电路（800）的方法包括：在第一状态中操作第一四象限开关（804）和第二四象限开关（806），在第一状态中，第一四象限开关（804）闭合并且第二四象限开关（806）断开（1202），使得电机（808）所经历的电压等于交流线路电压（802）；在第二状态中操作第一四象限开关（804）和第二四象限开关（806），在第二状态中，第一四象限开关（804）断开并且第二四象限开关（806）闭合（1204），使得电机（808）所经历的电压为零；提供正触发角（1010）和负触发角（1012）（1206）；基于正触发角（1010）和负触发角（1012）限定第一四象限开关（804）和第二四象限开关（806）何时在第一状态和第二状态的每一个中操作（1208）；使用正触发角（1010）和负触发角（1012）以由交流线路电压频率确定的开关频率在第一状态与第二状态之间转变（1210）。
Patent WO-2023273108-A1 (WO)
Title: 单目测距方法、装置及智能装置
Inventor: LI YIRUN
IPC: G01C11/00
Filed: 2021-11-18
Abstract: 一种单目测距方法、装置及智能装置，包括：通过单目相机(201)拍摄平视图；根据第一区域图像(203)的顶角像素坐标确定单应矩阵；从矩形区域的底边确定基准点，获取基准点与单目相机(201)之间的距离；确定基准点在第一区域图像(203)中对应的基准点像素坐标，获取基准点像素坐标对应的逆透视基准点坐标；对单目相机(201)拍摄的其他平视图进行目标物体(302)检测，得到目标物体边界框(301)，根据单应矩阵对目标物体边界框(301)的底边(3013)任一像素点坐标进行逆透视变换，获取底边任一像素点坐标对应的目标逆透视坐标；根据获取到的相关参数，确定目标物体(302)与单目相机(201)之间的距离。这样，可以通过单目相机(201)测量目标物体(302)的距离，降低测距条件，提高测距效率。