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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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Форма поиска

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 15. Отображено 15.
09-06-2023 дата публикации

Passive temperature control-based method for improving generating capacity of single-sided solar cell module

Номер: CN116248044A
Принадлежит:

The invention provides a passive temperature control-based single-sided solar cell module generating capacity increasing method, which comprises the following steps of: carrying out annual dynamic simulation calculation on the generating capacity of a solar cell module under different dependent variable values by taking a phase change temperature, a phase change material consumption and a heat pipe quantity as dependent variables; the total generating capacity of the set time period under different dependent variable values is obtained; drawing a pareto graph in the form of a two-dimensional scatter diagram by taking the total generating capacity as an abscissa and the cost increment as an ordinate to obtain a leading edge of the pareto graph, and taking a dependent variable value of a working condition corresponding to the pareto leading edge as an optimal dependent variable parameter; arranging the single-sided solar cell module according to the optimal dependent variable parameters so ...

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21-07-2023 дата публикации

Photovoltaic power probability prediction method and system based on copula function

Номер: CN116470491A
Принадлежит:

The invention discloses a copula function-based photovoltaic power probability prediction method and system. The method comprises the steps of obtaining historical photovoltaic power data and historical meteorological data of centralized and distributed photovoltaic power stations; different weather types are obtained through clustering; according to historical photovoltaic power data under different weather types, accumulative distribution of photovoltaic power is obtained, and optimal copula function models for quantitatively and dynamically representing centralized photovoltaic and distributed photovoltaic power spatial correlation are respectively constructed; according to the obtained photovoltaic power data of the centralized photovoltaic power station, a distributed photovoltaic power point prediction value is obtained in combination with the corresponding optimal copula function model; based on a quantile regression method, a conditional probability model is constructed, and a conditional ...

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07-07-2023 дата публикации

Wind power generation project construction multi-process flow optimization method and system

Номер: CN116402193A
Принадлежит:

The invention provides a wind power generation project construction multi-process flow optimization method and system. By analyzing constraint relations in the working procedures and among the working procedures, the working procedures are optimized one by one based on working procedure decoupling by taking minimization of the construction cost as an optimization target under the condition that the construction period requirement is met. According to the method, all equipment of multiple procedures is scheduled to achieve the optimal target, the optimal target can be achieved, planning of the construction sequence of road construction, fan foundation pouring and fan hoisting can be achieved, and the optimal number of fan hoisting equipment (cranes) and the entering time of the fan hoisting equipment (cranes) are determined.

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13-06-2023 дата публикации

Direct-current bus variable-structure doubly-fed strong excitation converter

Номер: CN116260179A
Принадлежит:

The invention discloses a direct current bus variable structure double-fed strong excitation converter which is composed of a network side two-level converter, four sets of DAB converters, two sets of series-parallel switching circuits and a rotor side NPC type three-level inverter, and the four sets of DAB converters and the two sets of series-parallel switching circuits jointly input direct current voltage to form two sets of output voltage capable of being switched in a series-parallel mode. The rotor side NPC type three-level inverter is connected to a positive direct current bus and a negative direct current bus of the NPC type three-level inverter, and the rotor side NPC type three-level inverter carries out closed-loop control on the rotor current of the DFIG. According to the forced excitation converter, a variable-structure direct-current bus is constructed by using a dual-active bridge converter and a series-parallel switching circuit, so that the voltage of the rotor-side direct-current ...

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30-05-2023 дата публикации

Rapid demolding structure for T-beam formwork and using method of rapid demolding structure

Номер: CN116175762A
Принадлежит:

The invention relates to a T-beam formwork rapid demolding structure which comprises a bottom plate used for supporting the whole device, a T-shaped bin used for loading concrete, a supporting assembly used for supporting the T-beam formwork, a demolding mechanism used for demolding of the T-beam formwork, a vibration mechanism used for removing bubbles in the concrete and a buffering assembly used for supporting the T-shaped bin. The T-shaped bin is formed by integrally forming a first table body and a second table body, the second table body is arranged above the bottom plate, and the first table body is perpendicularly fixed to the lower end face of the second table body and communicates with the second table body. According to the quick demolding structure for the T-beam formwork and the using method of the quick demolding structure, two threaded rods are driven to rotate under the driving action of a rotating motor, that is, two threaded seats are driven to move downwards when the ...

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27-08-2021 дата публикации

Vehicle key and vehicle control system

Номер: CN214057468U

The utility model relates to the technical field of vehicles, and discloses a vehicle key which comprises a first shell, a second shell, an acquisition module, a control module and a vehicle control signal transmitting module, the first shell is rotatably connected to the second shell, the acquisition module is arranged in the first shell and the second shell, signals acquired by the acquisition module are adjusted by rotating the first shell, and a pulse signal output end of the acquisition module is connected with an acquisition input end of the control module. Therefore, the control module can detect the signal collected by the collection module, and the trigger signal output end of the control module is connected with the input end of the vehicle control signal transmitting module to transmit the corresponding vehicle control signal to the vehicle, so that the vehicle is triggered to execute the corresponding operation. The vehicle key mistaken touch caused by accidental key extrusion ...

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02-05-2023 дата публикации

Deviation rectifying and reinforcing device and method for connecting structure of foundation ring type fan foundation and tower drum

Номер: CN116043934A
Принадлежит:

The invention belongs to the technical field of fan foundations, and provides a deviation rectifying and reinforcing device and method for a connecting structure of a foundation ring type fan foundation and a tower drum. An upper flange is arranged at the top of the foundation ring, the foundation ring is connected with the tower drum through the upper flange, the deviation rectifying and reinforcing device comprises a plurality of jacking devices and a plurality of reinforcing structures, the jacking devices are arranged on the inner side of the foundation ring, and the reinforcing structures are arranged on the outer side of the tower drum; the reinforcing structure comprises a tower tube supporting steel member and a stand supporting steel member, the tower tube supporting steel member is fixed to the outer side of a tower tube, and the stand supporting steel member is fixed to a draught fan foundation. The jacking device is used for correcting the deviation of the foundation ring, and ...

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07-04-2023 дата публикации

Photovoltaic output power prediction method and system based on neural network

Номер: CN115936177A
Принадлежит:

The invention discloses a photovoltaic output power prediction method and system based on a neural network, and relates to the technical field of photovoltaic power generation. Photovoltaic power prediction models under different weather types are formed through combination of a convolutional neural network and a multi-layer perceptron; according to the photovoltaic output power prediction method based on the convolutional neural network, the original data is divided into a plurality of subsets by using the convolutional neural network, the data with the same weather condition are concentrated together, and the prediction precision of the model is improved by using the characteristic that the photovoltaic power of similar days has relatively strong relevance. According to the method, regression analysis is carried out on the meteorological influence factors, identification optimization is carried out on input variables of the photovoltaic power prediction model, and model performance evaluation ...

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12-05-2023 дата публикации

Bridge machine for repairing bridge antirust paint

Номер: CN116099689A
Принадлежит:

The invention relates to the technical field of bridges, and discloses a bridge machine for repairing bridge antirust paint, which comprises a cart, a support frame is fixedly mounted on the cart, a storage barrel is mounted in the center of the top of the support frame, a side plate is fixedly connected to the side edge of the support frame, and a rust removal assembly is arranged on the side edge of the side plate. A paint spraying assembly is arranged on one side of the rust removal assembly. The rust removal assembly comprises a second handle, the bottom of the second handle is fixedly connected with a second shell, a sliding groove is formed in the middle of the interior of the second shell, a sliding block is slidably mounted in the middle of the sliding groove, second racks are fixedly connected to the two sides of the sliding block correspondingly, and a first spring is fixedly mounted at the top of the sliding block; according to the guardrail paint repairing device, the rust removing ...

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30-06-2023 дата публикации

Switching structure and mounting process

Номер: CN116357526A
Принадлежит:

The invention belongs to the technical field of wind power generation, and provides a switching structure and a mounting process. The switching structure comprises a first annular plate and a second annular plate which are oppositely arranged at a certain interval, the first annular plate and the second annular plate are connected through a cylindrical web plate, and the first annular plate, the second annular plate and the web plate are coaxial; the first annular plate is connected with a tower barrel, and the second annular plate is connected with a fan foundation. The switching structure is designed between the foundation and the tower drum, so that the same fan foundation is matched with different wind generating sets, the utilization efficiency of the fan foundation is improved, and the period and cost for dismantling and newly building the foundation are saved.

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08-08-2023 дата публикации

Sleeve valve trepanning design method and sleeve valve

Номер: CN116561930A
Принадлежит:

The invention relates to the technical field of sleeve valves, discloses a sleeve valve trepanning design method and a sleeve valve, and aims to meet the design of sleeve valve orifices with different flow characteristics in order to solve the problem that in the prior art, the layout design of orifices with different flow characteristics can only be realized through multiple experiments. A corresponding mathematical model is selected according to a needed flow equation and flow characteristics, the number of the throttling holes in each layer and the distance between every two adjacent layers are determined through the mathematical model, and therefore layout design of the throttling holes is achieved. Due to the fact that the mathematical model is established according to the corresponding relation of the flow, the overflowing area and the stroke of the sleeve valve, different layout designs can be generated according to different flow characteristics, and different flow requirements ...

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27-06-2023 дата публикации

Carbon neutralization data processing system and method based on electric power data

Номер: CN116341941A
Автор: HOU ZHEN, WEN DAIYANG
Принадлежит:

The invention discloses a carbon neutralization data processing system and method based on electric power data. The system comprises a data acquisition unit, an enterprise carbon accounting unit, a scientific carbon target analysis unit, a carbon neutralization calculation analysis display unit and a server. According to the technical scheme provided by the embodiment of the invention, the difficulty of enterprise carbon emission data acquisition is reduced by using the automatic power data acquisition equipment, and the data acquisition quality can be improved, so that the enterprise carbon emission is monitored at the lowest cost, and the enterprise is helped to set a scientific carbon target for carbon neutralization annual score prediction by automatically performing carbon accounting; the carbon neutralization efficiency of enterprises is improved.

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18-08-2023 дата публикации

Power management method, device and equipment in off-vehicle state and vehicle

Номер: CN116605166A
Автор: CUI SHUCHAO, HOU ZHEN
Принадлежит:

The invention provides a power management method, device and equipment in an off-vehicle state and a vehicle, specifically, the method comprises the steps that in response to the situation that the vehicle is in a user off-vehicle state, a vehicle key signal is periodically obtained; in response to the situation that the car key signal is not obtained within the first preset time period, prompt information is sent to a user terminal; controlling the vehicle to be powered off based on feedback information of the user terminal; according to the method, the vehicle can be controlled to be powered off according to the feedback information of the user under the condition that the vehicle detects that the vehicle does not carry the vehicle key signal, the problem that the vehicle cannot be controlled to be powered off due to the fact that the vehicle cannot receive the vehicle key information is solved, the vehicle can be locked in time, the flexibility and safety of the vehicle are improved, ...

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05-05-2023 дата публикации

Shield tunneling machine performance prediction method based on LSTM neural network

Номер: CN116070363A
Принадлежит:

A shield tunneling machine performance prediction method based on an LSTM neural network is characterized by comprising the following steps of 1, selecting parameters related to shield tunneling machine performance prediction as shield tunneling machine performance prediction reference data; step 2, based on the parameters selected in the step 1, collecting and constructing a monitoring data sample library and constructing a neural network, and adjusting the parameters through training to optimize the network; and step 3, predicting the performance of the shield tunneling machine by using the neural network, so as to predict the performance change condition of the shield tunneling machine, thereby guiding the opportunity of setting, adjusting and maintaining related parameters of the shield tunneling machine, and realizing smooth tunneling of the shield tunneling machine.

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23-05-2023 дата публикации

Control method of DAB-based H-bridge series-parallel switching type strong excitation converter

Номер: CN116154845A
Принадлежит:

The invention provides a control method for an H-bridge series-parallel switching type strong excitation converter based on a DAB, and the structure of a grid-side converter is the same as that of a conventional two-level voltage source inverter, and the grid-side converter is directly connected with a power grid through an inductor. The rotor side converter is composed of a DAB, an H-bridge module and a switching circuit. According to the technical scheme, in order to solve the problem that induced electromotive force generated by a rotor side during low voltage ride-through of a DFIG is too large, the DAB-based H-bridge series-parallel switching type doubly-fed forced excitation converter is provided according to the idea of constructing the forced excitation converter in order to ensure that the DFIG is always controllable when a power grid breaks down; a DAB + H bridge series-parallel topology is used for replacing a traditional rotor side converter. When the voltage of the power grid ...

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