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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 11. Отображено 11.
25-03-2015 дата публикации

Hot rolling production economic load scheduling method used under time-of-use power price

Номер: CN104463414A
Автор: TAN MO, DUAN BIN, SU YONGXIN, YAO ZILI, YI LINGZHI
Принадлежит:

The invention discloses a hot rolling production economic load scheduling method used under time-of-use power price. The method includes the following steps of (1) loading time-of-use power price rate data and data of plate blanks to be scheduled and produced, (2) determining objective functions and constraint conditions of hot rolling production economic load scheduling, (3) obtaining hybrid chromosome codes of batch plan formulation and rolling production idle waiting time, (4) obtaining selection operators, crossover operators and mutation operators of the hybrid chromosome codes and operations of the selection operators, the crossover operators and the mutation operators, (5) executing a non-dominated sorting multi-objective genetic algorithm to optimize the objective functions of hot rolling production economic load scheduling, and (6) outputting multi-objective decisions and recommended schemes of a solution set. The method is suitable for hot rolling production scheduling method ...

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Номер записи: 1
23-05-2023 дата публикации

Internet of Things equipment identification method based on locality sensitive hashing in smart home

Номер: CN116150632A
Автор: LU HONGWEI, XU ZEHUA, DENG XIANJUN, YI LINGZHI, LIU SHENGHAO, NIE XIN, XIA YUNZHI, GENG YIXUAN
Принадлежит:

The invention discloses an Internet of Things equipment identification method based on locality sensitive hashing. The method comprises the following steps: (1) acquiring equipment traffic at a gateway, and classifying the equipment traffic according to physical addresses of specific equipment; (2) carrying out feature packet filtering, slicing and recombination on the classified equipment traffic to create an equipment signature; (3) generating an abstract for each signature by using a locality sensitive hashing algorithm, and storing the abstract and the equipment label in an abstract database; (4) generating an abstract of the flow to be identified, comparing the abstract with all examples in the database, and calculating four indexes; and (5) fitting a similarity score of 10 signature aggregation by using a ternary linear regression model trained by a multi-index evaluation method, and returning the equipment with the highest fitting score as a predicted value of the equipment. According ...

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Номер записи: 2
25-03-2015 дата публикации

Integrating device of EMI filter and boost inductor in bridgeless PFC circuit

Номер: CN104467398A
Автор: DENG CHENG, ZHONG YEYU, YI LINGZHI, GUO YOUGUI
Принадлежит:

The invention discloses an integrating device of an EMI filter and a boost inductor in a bridgeless PFC circuit. The integrating device of the EMI filter and the boost inductor in the bridgeless PFC circuit comprises a first PCB integrating winding and a second PCB integrating winding. The first PCB integrating winding is wound on a first E type magnetic core, and the second PCB integrating winding is wound on a second E type magnetic core and a third E type magnetic core. The input end of a fourth winding is connected with one end of a power grid, the output end of the fourth winding is connected with the input end of a first winding, and the output end of the first winding is connected with one input end of a rectifying and load device. The input end of a fifth winding is connected with the other end of the power grid, the output end of the fifth winding is connected with the input end of a second winding, and the output end of the second winding is connected with the other input end ...

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Номер записи: 3
02-06-2023 дата публикации

UHPC-CSW wet joint structure of prefabricated bridge deck slab and construction method of UHPC-CSW wet joint structure

Номер: CN116201008A
Автор: SHI XIONGWEI, XU BING, WANG YUE, YI LINGZHI, YUAN ZHUOYA, MIAO JIANBAO, LIU JIAN, LIU YANTAO, ZHAO TING, LI JING
Принадлежит:

The invention discloses a UHPC-CSW wet joint structure of a prefabricated bridge deck slab and a construction method thereof.The structure comprises CSWs embedded in the ends of two adjacent concrete prefabricated slabs and UHPC poured between the two adjacent concrete prefabricated slabs, shear nails are arranged on the CSWs, transverse steel bars and longitudinal steel bars are arranged in the concrete prefabricated slabs, and the transverse steel bars and the longitudinal steel bars are arranged in the concrete prefabricated slabs. The two ends of the longitudinal steel bars stretch out of the concrete prefabricated slab and stretch into the UHPC, annular steel bars used for connecting every two adjacent longitudinal steel bars are arranged in the UHPC, and reinforcing steel bars are arranged in the annular steel bars in a penetrating mode. The method comprises the following steps: 1, manufacturing a combined bridge deck slab; 2, bridge deck slab hoisting operation; and 3, wet joint ...

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Номер записи: 4
22-08-2023 дата публикации

Freight train speed tracking and anti-slip control based on unscented Kalman observer

Номер: CN116620364A
Автор: YI LINGZHI, YI YU, XIE CHENG, ZHANG DAKE, LAN YONGHONG, LAN ZHIYONG
Принадлежит:

The invention provides a freight train speed tracking and anti-skid control method based on an unscented Kalman observer. On the basis of a multi-mass-point model, the stress condition and the dynamic transfer process of the freight train in the running process are deeply analyzed, and a freight train dynamic model is established. Train running indexes such as energy consumption, punctuality and tracking precision during running of the freight train are fully considered, and optimal tracking of the target running speed is achieved by means of model prediction control. In order to enhance the adaptivity of the control system, a parameter adaptive adjustment mechanism is integrated in the MPC, and adaptive adjustment is performed on the optimization weight representing each driving index in combination with the driving condition of the freight train, so that adaptive model prediction control is formed. The parameter adaptive adjustment is realized through the Elman neural network, and the ...

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Номер записи: 5
11-07-2023 дата публикации

Intelligent voice forgery attack detection method based on attention mechanism

Номер: CN116416997A
Автор: DENG XIANJUN, HUANG YONGLING, YI LINGZHI, XIA YUNZHI, LIU SHENGHAO, YANG TIANRUO, ZHOU XINLEI
Принадлежит:

The invention discloses an attention mechanism-based intelligent voice forgery attack detection method, which comprises the following steps of: converting a voice sample from a time domain to a frequency domain for analysis, considering the influence of different filters on feature expression, filtering a frequency spectrum by using various filters, extracting a logarithmic power spectrum and a Mel-frequency cepstral coefficient, and extracting a voice forgery attack from the logarithmic power spectrum and the Mel-frequency cepstral coefficient; three different voice sample voiceprint features of a linear frequency cepstrum coefficient; training a forged voice attack detection model based on an attention mechanism and a residual network, performing adaptive feature selection by using the attention mechanism, enhancing discriminative effective features, suppressing noise and redundant features, and then performing advanced feature extraction and learning through the residual network; and ...

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Номер записи: 6
25-07-2023 дата публикации

High-precision contact network state sensing method based on data driving

Номер: CN116485226A
Автор: YI LINGZHI, DONG TENGFEI, WANG YAHUI, YU GUO, LIU JIANGYONG, LAN ZHIYONG
Принадлежит:

The invention relates to a high-precision contact network state sensing method based on data driving, and aims to solve the problems that the traditional contact network state sensing mostly adopts a single weighting method or a proportion of subjective and objective weights is artificially given when a combined weight is calculated, so that the calculated contact network index weight is not high in accuracy and is a static constant weight sensing model. When grey clustering is adopted to perceive the state of a contact network, the proportion of directly and fixedly dividing each health state in a membership function has great limitation. The ratio of the subjective weight to the objective weight is optimized by adopting a best-first search algorithm to obtain a constant weight of the index, and the constant weight is dynamically modified in real time based on a variable weight theory to obtain a variable weight more conforming to the actual situation. After each health level is divided ...

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Номер записи: 7
04-07-2023 дата публикации

Wireless sensor network coverage reliability evaluation method based on credible information coverage

Номер: CN116390112A
Автор: DENG XIANJUN, JING DEJUN, LU HONGWEI, YI LINGZHI, LIU SHENGHAO, NIE XIN, XIA YUNZHI, GENG YIXUAN
Принадлежит:

The invention discloses a wireless sensor network coverage reliability evaluation method based on credible information coverage. The method comprises the following steps: deploying a wireless sensor network according to a monitoring scene; comprehensively considering the polymorphism of the nodes, the connectivity between the nodes, the network coverage rate and the root-mean-square error, and defining the credible information coverage reliability; state transition of the sensor nodes is evaluated based on a three-state node model; constructing a coverage table structure to uniformly describe the coverage reliability of each node in the network; evaluating the coverage reliability of each sub-region by setting a virtual reconstruction node and using a coverage table of the virtual reconstruction node; and calculating the overall coverage rate and the coverage reliability lower bound of the network by adopting a table combination mode. According to the invention, the coverage of the sensor ...

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Номер записи: 8
23-05-2023 дата публикации

Lightweight Internet of Things equipment identification method and device in smart home

Номер: CN116150688A
Автор: LU HONGWEI, ZHANG NING, DENG XIANJUN, YI LINGZHI, LIU SHENGHAO, NIE XIN, XIA YUNZHI, GENG YIXUAN
Принадлежит:

The method comprises the following steps: acquiring traffic generated by equipment in the smart home at a gateway, preprocessing traffic data, and identifying the type and model of each piece of equipment; aggregating the flow data packets according to a fixed time window to obtain a network flow of each device; calculating statistical information of the size of a data packet in the network flow to obtain a feature vector of the network flow; the obtained feature vectors and the corresponding device types and model labels are sent to a three-stage classifier for training, and a multi-stage fine-grained Internet of Things device identification model is obtained; and sending the traffic of the to-be-identified equipment into the trained Internet of Things equipment identification model, and obtaining the type and model of the to-be-identified equipment through a three-stage classifier. According to the invention, rapid and accurate fine-grained Internet of Things equipment identification ...

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Номер записи: 9
01-12-2017 дата публикации

Method for forecasting micro-grid load of intelligent building based on depth learning

Номер: CN0107423839A
Автор: YI LINGZHI, CHANG FENGMING
Принадлежит:

The invention provides a method for forecasting the micro-grid load of an intelligent building based on deep learning. A system for forecasting the micro-grid load of an intelligent building based on deep learning comprises a perception layer, a transport layer, a data layer and an application layer. The technology realization process includes the steps of firstly, collecting residential power consumption load big data through an intelligent building micro-grid residential electric equipment collecting platform and forming a residential power consumption load database; and carrying out load forecasting using a convolutional neural network forecasting model, sorting the obtained forecast information, and then feeding back the information to residential users so that the resident users can make reasonable power consumption decisions according to related parameters and suggestions. According to the invention, big data load forecasting can be carried out and good forecasting accuracy is gained ...

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Номер записи: 10
18-07-2023 дата публикации

Internet of Things reliability coverage reliability evaluation method based on D-S evidence theory

Номер: CN116455800A
Автор: DENG XIANJUN, CHEN SUNING, YI LINGZHI, XIA YUNZHI, LIU SHENGHAO, YANG TIANRUO, YI YUANYUAN
Принадлежит:

The invention discloses an Internet of Things reliability coverage reliability evaluation method based on a D-S evidence theory, and the method comprises the steps: setting related parameters of a network model according to the coverage demands and observation attributes of a target region, and building the network model; setting a classification reliability index and a credibility threshold according to the credibility coverage reliability meaning, and defining a reliable coverage area and the credibility coverage reliability; calculating the weight and root mean square error of each sensor under the credible information coverage model by using Kriging interpolation, judging credible information coverage according to the root mean square error, and calculating a predicted value; obtaining a plurality of evidences generated by the network model by using a Jousseline evidence distance and an evidence discount theory, and fusing the plurality of evidences according to a D-S evidence theory ...

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Номер записи: 11