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申请号:202010025592.8 公开号:CN111231294A 主分类号:B29C63/02
摘要:【中文】本发明实施例涉及电子设备外表面的保护方法,公开了一种电子设备的产品表面覆膜保护方法。本发明中,电子设备的产品表面覆膜保护方法,包括以下步骤:提供电子设备的壳体和待贴附的保护膜,壳体上开设有按键孔;将保护膜贴附到壳体的待保护面,且覆盖按键孔;将按键安装入按键孔内,保护膜覆盖至按键朝向壳体的待保护面的一侧。与现有技术相比,使得精简了工序,缩短产品制造周期,减少了人力成本,且降低产品成本,提高市场竞争力。 【EN】The embodiment of the invention relates to a method for protecting the outer surface of electronic equipment, and discloses a method for protecting the surface of a product of the electronic equipment by coating. The invention discloses a product surface coating protection method of electronic equipment, which comprises the following steps: providing a shell of the electronic equipment and a protective film to be attached, wherein the shell is provided with a key hole; attaching a protective film to the surface to be protected of the shell and covering the key hole; the key is arranged in the key hole, and the protective film covers one side of the key, which faces the surface to be protected of the shell, of the key. Compared with the prior art, the method simplifies the working procedures, shortens the manufacturing period of the product, reduces the labor cost, reduces the product cost and improves the market competitiveness.
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申请号:201911107486.8 公开号:CN110887445A 主分类号:G01B11/14
摘要:【中文】本发明公开了一种中低速磁浮转向架间隙检测方法,包括以下步骤:S1、将激光位移计以任意角度α对准转向架进行测量得到第一测量间隙值a;S2、然后将激光位移计旋转90度,再次测量得到第二测量间隙值b;S3、根据第一测量间隙值a和第二测量间隙值b计算出实际间隙值。本技术方案无需将激光位移计垂直对准转向架,以任意角度测量转向架被测面得到第一测量间隙值,再将激光位移计激光位移计转动90度测量得到第二测量间隙值,经过计算即可得到实际间隙值,可以节约现场调试对准时间,同时保证了测量精度。 【EN】The invention discloses a method for detecting a gap of a medium-low speed magnetic suspension bogie, which comprises the following steps of S1, aligning a laser displacement meter to the bogie at any angle α for measurement to obtain a first measurement gap value a, S2, rotating the laser displacement meter by 90 degrees, measuring again to obtain a second measurement gap value b, and S3, calculating an actual gap value according to the first measurement gap value a and the second measurement gap value b.
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申请号:201911224948.4 公开号:CN110922889A 主分类号:C09D183/04
摘要:【中文】本发明公开了一种热力管道内壁耐磨防腐涂料,所述涂料包含A组分和B组分,所述A组分包括:酚醛环氧树脂、有机硅环氧杂化树脂、甲基异丁基酮、无机填料和助剂;所述B组分包含改性脂环族胺和氨基烷氧基硅烷;其中,所述无机填料包括改性磷酸锌、三聚磷酸铝、云母粉、碳化硅、碳纤维和钛白粉。本发明还公开了一种热力管道内壁耐磨防腐涂料的制备方法。本发明的热力管道内壁耐磨防腐涂料不仅具有高的耐温耐高压性能、保护管道不受热水介质的腐蚀,而且还具有良好的耐磨性能及耐玷污性能,涂覆本发明涂料降低了管道在输送热水中夹杂的铁屑焊渣及其它杂质对管道的摩擦损伤,大大延长了热力管道的使用寿命。 【EN】The invention discloses a wear-resistant anticorrosive coating for the inner wall of a heat distribution pipeline, which comprises a component A and a component B, wherein the component A comprises the following components: phenolic epoxy resin, organic silicon epoxy hybrid resin, methyl isobutyl ketone, inorganic filler and auxiliary agent; the B component comprises modified alicyclic amine and amino alkoxy silane; wherein the inorganic filler comprises modified zinc phosphate, aluminum tripolyphosphate, mica powder, silicon carbide, carbon fiber and titanium dioxide. The invention also discloses a preparation method of the wear-resistant anticorrosive coating for the inner wall of the heat distribution pipeline. The wear-resistant anticorrosive coating for the inner wall of the heat distribution pipeline has high temperature resistance and high pressure resistance, protects the pipeline from being corroded by hot water medium, has good wear resistance and stain resistance, reduces the friction damage of scrap iron welding slag and other impurities mixed in the pipeline during hot water conveying to the pipeline by coating the coating, and greatly prolongs the service life of the heat distribution pipeline.
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申请号:201911363154.6 公开号:CN110932630A 主分类号:H02P21/05
申请人:【中文】华中科技大学【EN】HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY 申请日:2019.12.25 公开日:2020.03.27
摘要:【中文】本发明公开了一种集成绕组双机械端口电机的内外转子解耦控制方法及系统,属于交流电机与驱动控制领域。本发明基于绕组变极理论的解耦供电技术,两套绕组通过采用灵活的电流分配系数m1,m2,n1,n2以辅助提高转矩输出或作为容错拓扑来运行;通过预测少极磁场将作用到外转子上的转矩,跳过外转子转速环,直接将补偿分量作用到外转子转矩上,从而实现了内转子转矩与外转子转速的解耦控制。本发明不仅实现了集成绕组双机械端口电机的灵活供电及内转子转矩与外转子转速解耦控制,而且所提出的解耦控制方法依赖于电机本身结构和参数特性,与负载大小无关,可以很好的适应于实际应用。 【EN】The invention discloses an internal and external rotor decoupling control method and system of an integrated winding double-mechanical-port motor, and belongs to the field of alternating current motor and drive control. The invention relates to a decoupling power supply technology based on a winding pole-changing theory, wherein two sets of windings adopt a flexible current distribution coefficient m1,m2,n1,n2To assist in increasing torque output or to operate as a fault tolerant topology; the torque acting on the outer rotor by the few-pole magnetic field is predicted, the outer rotor rotating speed ring is skipped, and the compensation component is directly acted on the outer rotor torque, so that the decoupling control of the inner rotor torque and the outer rotor rotating speed is realized. The invention not only realizes the double mechanical ports of the integrated windingThe motor is flexibly powered, the torque of the inner rotor and the rotating speed of the outer rotor are decoupled and controlled, and the decoupling control method is independent of the structure and parameter characteristics of the motor and the load, so that the decoupling control method can be well suitable for practical application.
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申请号:201811310829.6 公开号:CN111208807A 主分类号:G05D1/02
申请人:【中文】苏州艾吉威机器人有限公司【EN】Suzhou AGV Robot Co.,Ltd. 申请日:2018.11.06 公开日:2020.05.29
摘要:【中文】本发明公开了一种基于B样条曲线的AGV运动控制方法,包括如下步骤:(1)根据实际需求,规划AGV必须经过的行止站点;(2)通过行止站点反解控制点;(3)由控制点计算得到B样条参数方程,B样条为三阶B样条;(4)用B样条参数方程表示AGV的行驶路径;(5)采用自适应参数更新算法,进行参数更新,得到实时变化的参考点;(6)结合AGV的实际位姿与期望位姿的误差,得到位姿误差;(7)考虑到实际的AGV的转动惯量,根据AGV行进路径的曲率调节车速v,并根据小车的车速调节角速率ω;(8)采用PID控制方法,消除位姿误差,控制AGV按期望路径运动。本发明基于B样条曲线的AGV运动控制方法,使得AGV行驶路径更光滑;AGV舵轮摆角均匀,AGV运动更平稳。 【EN】The invention discloses an AGV motion control method based on a B spline curve, which comprises the following steps: (1) planning the running and stopping stations which must be passed by the AGV according to the actual requirements; (2) reversely solving the control point through the line stop station; (3) calculating by the control points to obtain a B spline parameter equation, wherein the B spline is a third-order B spline; (4) representing the driving path of the AGV by using a B spline parameter equation; (5) updating parameters by adopting a self-adaptive parameter updating algorithm to obtain a reference point which changes in real time; (6) combining the error of the actual pose and the expected pose of the AGV to obtain a pose error; (7) considering the actual rotational inertia of the AGV, adjusting the speed v according to the curvature of the travel path of the AGV, and adjusting the angular rate omega according to the speed of the trolley; (8) and a PID control method is adopted, so that the pose error is eliminated, and the AGV is controlled to move according to an expected path. According to the AGV motion control method based on the B spline curve, the running path of the AGV is smoother; the AGV steering wheel has even swing angle, and the AGV moves more stably.
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申请号:202010133282.8 公开号:CN111277191A 主分类号:H02P21/14
申请人:【中文】华中科技大学【EN】HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY 申请日:2020.03.01 公开日:2020.06.12
摘要:【中文】本发明公开了一种无刷双机电端口电机的动态响应主动控制方法和装置,属于交流电机与驱动控制领域。本发明方法使用双三相绕组供电产生两个极对数的磁场,分别作用到磁齿轮MGM和永磁同步电机PMSM部分,实现了无刷双机电端口电机在电流闭环跟踪下的外转子驱动轴动态响应主动控制,具体为:基于少极磁场转矩预测方法,实现了内转子突加突减负载时的外转子驱动轴无差拍补偿控制,系统响应大大增强;通过外转子驱动轴上的负载转矩观测方法,实现了外转子驱动轴上突加突减负载时的前馈补偿控制,系统响应进一步增强。控制简单易于实现,能够有效抑制系统震荡,提高系统响应和使用寿命。 【EN】The invention discloses a dynamic response active control method and device for a brushless dual-electromechanical port motor, and belongs to the field of alternating current motor and drive control. The method of the invention uses double three-phase windings to supply power to generate two magnetic fields with the number of pole pairs, and the two magnetic fields are respectively applied to the magnetic gear MGM part and the permanent magnet synchronous motor PMSM part, thereby realizing the dynamic response active control of the outer rotor driving shaft of the brushless double-motor port motor under the current closed-loop tracking, and the method specifically comprises the following steps: based on a few-pole magnetic field torque prediction method, the dead-beat compensation control of the outer rotor driving shaft is realized when the load of the inner rotor is suddenly added and reduced, and the system response is greatly enhanced; through the load torque observation method on the outer rotor driving shaft, the feedforward compensation control when the load is suddenly added or reduced on the outer rotor driving shaft is realized, and the system response is further enhanced. The control is simple and easy to realize, the system oscillation can be effectively inhibited, the system response is improved, and the service life is prolonged.
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申请号:201911206265.6 公开号:CN110855172A 主分类号:H02M7/483
申请人:【中文】华中科技大学【EN】HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY 申请日:2019.11.29 公开日:2020.02.28
摘要:【中文】本发明公开了一种多电平功率放大系统及其PWM控制信号产生方法,属于电力电子、无线通讯技术领域,包括主控机箱、功率模块和级联变压器;主控机箱用于根据外部通讯设备传递的控制信号进行多电平调制,产生各功率单元对应的PWM控制信号;主控机箱还用于监控功率模块的Fault信号和电压电流信号是否正常,并向Fault信号和电压电流信号正常的功率单元发送对应的PWM控制信号;功率模块用于测量Fault信号和电压电流信号;接收到PWM控制信号的功率单元还用于产生对应的交流方波;级联变压器用于将交流电压方波串联后输出。本发明解决了传统迭代方法在求解电平数较多的消谐方程时,迭代速度慢或者不收敛的问题。 【EN】The invention discloses a multi-level power amplification system and a PWM control signal generation method thereof, belonging to the technical field of power electronics and wireless communication and comprising a main control case, a power module and a cascade transformer; the main control case is used for carrying out multi-level modulation according to control signals transmitted by external communication equipment and generating PWM control signals corresponding to each power unit; the main control case is also used for monitoring whether the Fault signal and the voltage and current signal of the power module are normal or not and sending corresponding PWM control signals to the power unit with the normal Fault signal and the voltage and current signal; the power module is used for measuring a Fault signal and a voltage current signal; the power unit receiving the PWM control signal is also used for generating a corresponding alternating-current square wave; the cascade transformer is used for outputting the alternating voltage square waves after the alternating voltage square waves are connected in series. The method solves the problem that the traditional iteration method is slow in iteration speed or not convergent when solving the harmonic elimination equation with more levels.
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申请号:201911218739.9 公开号:CN110943604A 主分类号:H02M1/38
申请人:【中文】华中科技大学【EN】HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY 申请日:2019.12.03 公开日:2020.03.31
摘要:【中文】本发明公开了一种多电平功率放大器的死区控制方法及系统,通过SHEPWM技术计算得到N个方波逆变器的开通角;通过移相调制,利用开通角得到任一个方波逆变器的四个开关管的导通波形;从开关管的导通波形中,确定死区插入时刻,记为θ1、θ2、θ3、θ4,其中,θ1、θ3为第一桥臂死区插入时刻,θ2、θ4为第二桥臂死区插入时刻;在θ1‑Δθ,θ2‑Δθ,θ3‑Δθ,θ4‑Δθ时刻对输出电流进行检测,根据电流方向判断死区的插入方式,得到插入死区的开关管的导通波形。相比于传统的固定死区插入方案会引入不同程度的低次谐波,本发明采用灵活的死区在线插入方案,可以在任意负载电流的情况下,在输出电流侧完全不引入额外的低次谐波,使得输出波形能够很好的符合理想波形。 【EN】The invention discloses a dead zone control method and a system of a multi-level power amplifier, wherein the turn-on angles of N square wave inverters are obtained through calculation by a SHEPWM (short pulse width modulation) technology; conducting waveforms of four switching tubes of any square wave inverter are obtained by phase shift modulation and utilizing a conducting angle; determining dead zone insertion time from the conduction waveform of the switching tube, and recording the dead zone insertion time as theta1、θ2、θ3、θ4Wherein, theta1、θ3For the first bridge arm dead zone insertion time, θ2、θ4Inserting time for the dead zone of the second bridge arm; at theta1‑Δθ,θ2‑Δθ,θ3‑Δθ,θ4And detecting the output current at the time of delta theta, and judging the insertion mode of the dead zone according to the current direction to obtain the conduction waveform of the switching tube inserted into the dead zone. Compared with the traditional fixed dead zone insertion scheme, the invention introduces low-order harmonics with different degrees, adopts the flexible dead zone online insertion scheme, and can completely not introduce extra low-order harmonics on the output current side under the condition of any load current, so that the output waveform can well accord with the ideal waveform.
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申请号:201911355667.2 公开号:CN111021333A 主分类号:E02D3/12
申请人:【中文】西南交通大学【EN】SOUTHWEST JIAOTONG University 申请日:2019.12.25 公开日:2020.04.17
摘要:【中文】本发明公开了一种分段压力注浆的螺旋钢桩,包括螺旋钢桩和注浆器,所述螺旋钢桩包括第一中心钢轴和设于该第一中心钢轴外壁上的螺旋叶片,所述第一中心钢轴为中空且底部密封的结构,所述第一中心钢轴上还设有钢轴出浆口,所述注浆器的两端均设有碗形止浆塞,且所述注浆器上设有注浆器出浆口。本发明还提供了一种采用分段压力注浆的螺旋钢桩的注浆工艺,本发明能快速进行分段注浆,注浆前无需套壳料,无需钻孔,注浆后螺旋钢桩也能作为地基的一部分分担上部荷载,螺旋钢桩也能快速旋出,反复利用。 【EN】The invention discloses a spiral steel pile for segmented pressure grouting, which comprises a spiral steel pile and a grouting device, wherein the spiral steel pile comprises a first central steel shaft and spiral blades arranged on the outer wall of the first central steel shaft, the first central steel shaft is of a hollow structure with a sealed bottom, a steel shaft grout outlet is also formed in the first central steel shaft, bowl-shaped grout stop plugs are arranged at two ends of the grouting device, and a grouting device grout outlet is formed in the grouting device. The invention also provides a grouting process of the spiral steel pile by adopting segmented pressure grouting, the invention can carry out segmented grouting quickly, casing materials and drilling holes are not needed before grouting, the spiral steel pile can also be used as one part of a foundation to share upper load after grouting, and the spiral steel pile can also be screwed out quickly and recycled.
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申请号:201910694063.4 公开号:CN111027736A 主分类号:G06Q10/04
摘要:【中文】本发明公开了多目标优化下的微服务组合部署与调度方法,包括获取资源中心相关数据、微服务相关数据和用户相关数据;建立微服务组合部署与调度的多目标优化模型;采用多目标优化算法NSGA‑III对所述的多目标优化模型进行求解;计算出每一个资源中心需要启动的微服务数量向量;根据所述的微服务数量向量对资源中心的微服务进行部署和调度。本发明构建了详尽的微服务的组合调度问题的多目标优化模型,并通过改进的NSGA‑III算法对模型进行求解,对求解结果进行解码获得微服务的组合部署策略,实验证明本发明方法的微服务组合部署策略比传统部署策略在资源中心计算存储资源、负载均衡率以及服务实际使用率均有较大提升。 【EN】The invention discloses a micro-service combined deployment and scheduling method under multi-objective optimization, which comprises the steps of obtaining resource center related data, micro-service related data and user related data; establishing a multi-objective optimization model for micro-service combined deployment and scheduling; solving the multi-objective optimization model by adopting a multi-objective optimization algorithm NSGA-III; calculating the micro-service quantity vector required to be started by each resource center; and deploying and scheduling the micro-services in the resource center according to the micro-service quantity vector. The invention constructs a multi-objective optimization model of the detailed micro-service combined scheduling problem, solves the model through an improved NSGA-III algorithm, decodes the solved result to obtain the micro-service combined deployment strategy, and experiments prove that the micro-service combined deployment strategy of the method is greatly improved in resource center calculation storage resources, load balancing rate and actual service utilization rate compared with the traditional deployment strategy.
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