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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 9. Отображено 9.
06-02-2020 дата публикации

PID CONTROLLER DESIGN METHOD

Номер: WO2020024548A1
Автор: ZHENG, Weijia, LUO, Ying
Принадлежит:

Provided is a PID controller design method. A control model of a PID controller is set to satisfy KD = aKI and u = bλ, wherein a and b are proportional coefficients. The control model of the PID controller is reset, and a transfer function of a controlled object in a control system is set. The method comprises: selecting a cut-off frequency and a phase margin of a control system; controlling an optimal proportional model of model parameters according to a fractional-order PID controller, and obtaining the values of proportional coefficients a and b according to the cut-off frequency and the phase margin of the control system; calculating amplitude information and phase information of a transfer function at the cut-off frequency; listing two equations related to an integral gain KI and a fractional order λ; solving the integral gain KI and the fractional order λ; solving a differential gain KD and a fractional order u; and calculating a proportional gain KP. In the method, the proportional ...

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Номер записи: 1
18-04-2023 дата публикации

Laser communication test method and test system

Номер: CN115987385A
Автор: LUO YING, WAN YI
Принадлежит:

The invention discloses a laser communication test method and test system. According to the invention, the position of the terminal causing the communication abnormity at present is judged through the data loss rate, the cause of the communication abnormity is determined according to the signal change trend, and the cause of the communication abnormity is fed back to each communication terminal, so that a tester can quickly determine the cause of the communication abnormity, and the test efficiency is improved. And interference factors of abnormal communication are eliminated according to related prompts.

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Номер записи: 2
06-02-2020 дата публикации

OPTIMAL PROPORTION MODEL ESTABLISHMENT METHOD FOR PID CONTROLLER PARAMETERS

Номер: WO2020024549A1
Автор: ZHENG, Weijia, LUO, Ying
Принадлежит:

An optimal proportion model establishment method for PID controller parameters. In a control model of a PID controller, let KD be equal to aKI and u be equal to bλ, wherein a and b are proportion coefficients. The method comprises: setting controlled objects of controlled objects in a control system; dividing the range of object model parameters; setting and dividing a cut-off frequency ωc and a phase margin φm of the control system; setting and dividing value ranges of a proportion coefficient a and a proportion coefficient b; calculating optimal values of the proportion coefficient a and the proportion coefficient b; establishing an estimation model of the proportion coefficient a; and establishing an estimation model of the proportion coefficient b. Designing a fractional order PID controller by using an optimal proportion coefficient estimation model enables a control system to achieve optimal dynamic response performance while ensuring the system to obtain excellent robustness; and ...

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Номер записи: 3
16-05-2023 дата публикации

Fractional order modeling and identification method for motor driving system and application of fractional order modeling and identification method

Номер: CN116131672A
Автор: LUO YING, GAN HE, WANG SHAOHUA
Принадлежит:

The invention belongs to the related technical field of motor modeling, and discloses a motor driving system fractional order modeling and identification method and application thereof, and the method comprises the following steps: (1) building a fractional order transfer function model of an electromagnetic link of a PMSM servo system; meanwhile, a nonlinear sigmoid function model of the inverter is established, and unknown parameters of the sigmoid function model are confirmed; performing preliminary compensation on nonlinearity of the inverter based on the sigmoid function model so as to obtain a new sigmoid function model, and then confirming parameters in the new sigmoid function model; and (2) obtaining a linear region of voltage and current of a d-q axis based on the obtained sigmoid function model, performing current sampling on the d-q axis in the obtained linear region, and calculating unknown parameters in the fractional order transfer function model based on data obtained by ...

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Номер записи: 4
21-04-2023 дата публикации

Light spot centroid determination method and system applied to laser communication

Номер: CN115994935A
Автор: LUO YING, WAN YI
Принадлежит:

The invention discloses a light spot centroid determination method and system applied to laser communication, and the method comprises the steps: carrying out the dynamic analysis of the gray change in a light spot region at different moments through the continuous monitoring of the gray change of each pixel point in a certain time period in a light spot movement process, and carrying out the dynamic analysis of the gray change in a light spot region at different moments; the stability of the gray scale of the pixel points in the light spot area and the similarity between the gray scale of the pixel points and the gray scale of adjacent pixel points are evaluated, the probability that a certain pixel point is the mass center of the light spot is obtained, and therefore the mass center point of the light spot is determined, and the method is particularly suitable for dynamic light spot mass center tracking and has important significance in the aspects of light spot tracking, light spot trajectory ...

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Номер записи: 5
05-05-2023 дата публикации

Forklift loading device and unmanned forklift

Номер: CN116062656A
Автор: ZHAO LEI, LI SHIHAO, LUO YING, SHEN XUEHUI
Принадлежит:

The invention discloses a forklift loading device and an unmanned forklift, relates to the technical field of forklifts, and aims to solve the problem that the gravity center of the forklift moves forwards excessively when large-size goods are carried. The forklift loading device comprises a door frame, a tipping oil cylinder, a fork arm carrier, a fork and a lifting assembly, the lower end of the door frame is provided with a door frame lug plate connected with a forklift body through a hinge, a piston rod of the tipping oil cylinder is connected with the middle of the door frame through a hinge, the fork arm carrier is arranged on the door frame in an up-down sliding mode, and the fork is fixed to the fork arm carrier. The lifting assembly comprises a supporting table and a driving mechanism, supporting wheels are arranged at the bottom of the supporting table, a lifting piece for lifting the pallet fork is arranged at the top of the supporting table, and the driving mechanism is used ...

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Номер записи: 6
25-04-2023 дата публикации

Forklift working device and unmanned forklift

Номер: CN116002578A
Автор: ZHAO LEI, WANG SHENGLI, LUO YING, XU NAN
Принадлежит:

The invention discloses a forklift working device and an unmanned forklift, relates to the technical field of forklifts, and is used for solving the problem that cargoes are easy to tip over left and right when long cargoes are carried. The forklift working device comprises a door frame, a pallet fork frame and a pallet fork, and further comprises blocking assemblies, the two blocking assemblies are arranged left and right, each blocking assembly comprises a large arm, a large arm unfolding driving piece, a small arm and a small arm unfolding driving piece, one end of each large arm is connected with the door frame in a hinged mode, and the other end of each small arm is connected with the pallet fork frame in a hinged mode. The large arm unfolding driving piece is arranged between the large arm and the side wall of the portal frame and used for driving the large arm to swing, and the swing plane of the large arm is the plane where the portal frame is located; one end of the small arm is ...

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Номер записи: 7
04-07-2023 дата публикации

Nonlinear modeling method and application of piezoelectric ceramic actuator

Номер: CN116382075A
Автор: LUO YING, XU YIFAN
Принадлежит:

The invention discloses a nonlinear modeling method and application of a piezoelectric ceramic actuator, and belongs to the technical field of electromechanical system modeling control. The constructed fractional order coupling model comprises a fractional order hysteresis model and a fractional order creep model which are cascaded; wherein the fractional order hysteresis model comprises a linear module and a non-linear module which are connected in parallel, and the non-linear module represents the non-linear relation between the displacement and the voltage by establishing the equal relation between the displacement and the weighted summation result of a plurality of voltage fractional order calculus operators. The fractional order hysteresis model can accurately reflect the rate-independent hysteresis effect and the main characteristics of the piezoelectric ceramic actuator only with fewer parameters; compared with a traditional piezoelectric hysteresis and creep model, under the condition ...

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Номер записи: 8
11-04-2023 дата публикации

Multi-machine cooperative control method and system applied to intelligent network connection engineering machinery

Номер: CN115951610A
Автор: LUO YING, YUAN LIANG, SHEN XUEHUI, LIU JIANHUA, ZHAO LEI, LIANG XICHANG, WANG SHUCHAO, ZHU JIE, DING HONGLEI
Принадлежит:

The invention discloses a multi-machine cooperative control method and system applied to intelligent network connection engineering machinery, relates to the field of intelligent network connection engineering machinery, and aims at quickly and remotely taking over target equipment, and when an operator in an intelligent cabin observes that the remote engineering machinery is abnormal and needs to take over corresponding equipment emergently, the operator can take over the corresponding equipment emergently. The communication connection between the intelligent cabin and the target equipment can be established only by completing the sliding operation in the same direction on the control panel according to the observed real direction of the target engineering machinery relative to the target engineering machinery, the takeover control of the target equipment is rapidly completed, and the operation is convenient and rapid. According to the method, the takeover efficiency is greatly improved ...

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Номер записи: 9