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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 40. Отображено 40.
09-05-2023 дата публикации

Mobile robot path planning method

Номер: CN116088515A
Автор: ZHENG HUANNAN, WANG ZHIFENG, CHEN YOUPENG, LI GUONIAN, WANG PEIZHOU, XU WENYAN, DU YUXIANG, TONG JUN, FAN JINWEI, CAO JIAN
Принадлежит:

The invention provides a mobile robot path planning method, which comprises the following steps of S100, scanning all boundary points in a grid map, and adding the boundary points into a to-be-traversed endpoint list according to levels; s200, defining a certain point as a starting point according to work needs; s300, the starting point is added into the closed sequence, and it is indicated that the point is traversed; s400, checking whether non-traversed endpoints exist in the to-be-traversed endpoint list or not; s500, if all traversal is completed, the closed sequence is a robot traversal path, and map traversal can be completed only by traversing endpoints in sequence; if the traversal is not complete, calculating a nearest endpoint distance S1 from the current layer and a nearest endpoint distance S2 from the next layer; s600, if S1 < 1lt >; s2, taking the nearest end point of the current layer as the starting point, otherwise, taking the nearest end point of the next layer as the ...

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Номер записи: 1
07-04-2023 дата публикации

Spare part management system and method and computer storage medium

Номер: CN115936662A
Автор: GUO HUA, WANG ZHIFENG, HU XINXIN, TANG JIN'AI, LIAO XUEMOU
Принадлежит:

The invention provides a spare part management system, a spare part management method and a computer readable storage medium. The spare part management system comprises: a spare part demand acquisition module, wherein the spare part demand comprises a spare part demand quantity and spare part demand time; the inventory management module is used for identifying the number of inventory spare parts; the spare part demand calculation module is used for calculating the purchase quantity and purchase time of spare parts according to the spare part demand and the inventory spare part quantity; and the purchasing management module is used for forming a purchasing order according to the purchasing quantity and the purchasing time of the spare parts. According to the spare part management system, the demand, the inventory and the purchase are closely connected through the spare part demand calculation module, so that the calculation of accurate prediction of the spare part demand is realized, and ...

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Номер записи: 2
27-06-2019 дата публикации

STORAGE QUANTITY DETECTION METHOD AND DEVICE, COOKING APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM

Номер: WO2019119838A1
Автор: OU, Dali, WANG, Zhifeng, FENG, Jiangping, LIU, Zhicai, LIU, Jingsheng, YANG, Baomin
Принадлежит:

A storage quantity detection method comprises: generating a supplementary light radiation, and transmitting the same to an accommodation portion; and after transmission of the supplementary light radiation, controlling a storage quantity detection assembly to detect a storage quantity of a material. Also provided are a storage quantity detection device, a cooking apparatus, and a computer readable storage medium.

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Номер записи: 3
18-04-2023 дата публикации

Pre-cooling system and air separation device

Номер: CN115978911A
Автор: ZOU YONGHUI, WANG LENG, WANG ZHIFENG, GONG BIN
Принадлежит:

The invention relates to the technical field of air separation equipment, in particular to a pre-cooling system and an air separation device.The pre-cooling system comprises a water chilling unit, a water cooling tower, an air cooling tower and a cold storage part, and the cold storage part is arranged to be capable of inputting, outputting and storing cold energy; the cold storage part communicates with the water chilling unit, the water cooling tower and the air cooling tower, so that cold energy can move between the cold storage part and the water chilling unit, between the cold storage part and the water cooling tower and between the cold storage part and the air cooling tower. According to the pre-cooling system and the air separation device provided by the invention, the cold storage part stores and releases cold energy, so that the water chilling unit and the water cooling tower can operate under efficient load no matter in a high-temperature environment or a low-temperature environment ...

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Номер записи: 4
12-09-2019 дата публикации

FOOD PROCESSOR AND ROTATIONAL SPEED INCREASE CONTROL METHOD AND APPARATUS THEREFOR

Номер: WO2019169831A1
Автор: XU, Shaocheng, WANG, Zhifeng, FENG, Jiangping, LIANG, Xiantang, LEI, Jun, WANG, Shuai, LIU, Chuanlan
Принадлежит:

A food processor (200) and a rotational speed increase control method and apparatus therefor. The rotary speed increase control method comprises the following steps: when the food processor (200) is idle or in a light load state, obtain a rotational speed instruction (S1); analyze the rotational speed instruction to acquire a target rotational speed for a drive motor (100), and generate a PWM control signal according to the target rotational speed so as to control the drive motor (100) (S2); during the process of controlling the drive motor (100), gradually increase the duty cycle of the PWM control signal according to a progressive increment mode until the duty cycle of the PWM control signal reaches 1; and carry out weak magnetic control on the drive motor (100) so as to quickly increase the rotational speed of the drive motor (100) (S3); thus, the rotational speed of the drive motor (100) may be very high within a maximum threshold range allowed by the drive motor (100).

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Номер записи: 5
07-02-2019 дата публикации

FOOD PROCESSOR

Номер: WO2019024233A1
Автор: CHEN, Liancheng, LIANG, Xiantang, LIU, Chuanlan, WANG, Zhifeng, TANG, Yan, MA, Zhihai, LIU, Yunxiang, YAN, Ping
Принадлежит:

A food processor, comprising: a cup body (1) and a base (2); a stirring member (3) that is disposed in the cup body (1); a motor (4) that is disposed on the base (2), the motor (4) comprising a motor body and a rotor (41), and the motor (4) being used to drive the stirring member (3) for stirring; a magnetic component (5), the magnetic component (5) being disposed on the rotor (41), and the magnetic component (5) being used to provide a magnetic field conversion signal; a magnetic field sensor (6), the magnetic field sensor (6) being provided in correspondence with the magnetic component (5), and the magnetic field sensor (6) outputting an alternating level signal according to the magnetic field conversion signal; a control module (30), the control module (30) being connected to the magnetic field sensor (6), and the control module (30) obtaining the rotational speed of the motor (4) according to the alternating level signal.

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Номер записи: 6
11-07-2019 дата публикации

UPPER COVER ASSEMBLY, COOKING APPLIANCE, COOKING METHOD AND COMPUTER READABLE STORAGE MEDIUM

Номер: WO2019134371A1
Автор: LIU, Chuanlan, WANG, Zhifeng, MA, Zhihai, XU, Qiyang, YAN, Ping
Принадлежит:

An upper cover assembly (100), a cooking appliance (200), a cooking method and a computer readable storage medium, the upper cover assembly (100) comprising: an upper cover body (102) for forming an accommodating portion with a pot body (202) in a snap-fitted manner; an anti-overflow detection assembly (104) provided on a lower bottom plate of the upper cover body (102) and connected to a communication assembly (106), for detecting whether an overflow signal is generated in the accommodating portion; a temperature sensor (108) provided on the upper cover body (102) and connected to the communication assembly (106), for acquiring a temperature signal in the accommodating portion after the anti-overflow detection assembly (104) receives the overflow signal; and the communication assembly (106) provided on the upper cover body (102), for sending the overflow signal and the temperature signal to a heating control assembly of the pot body (202), so that the heating control assembly adjusts the ...

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Номер записи: 7
07-02-2019 дата публикации

FOOD PROCESSOR, AND CONSTANT SPEED CONTROL METHOD AND DEVICE THEREFOR

Номер: WO2019024227A1
Автор: LIU, Chuanlan, WANG, Zhifeng, YAN, Ping, LIANG, Xiantang, LIU, Yunxiang, TANG, Yan, MA, Zhihai, FENG, Jiangping, CHEN, Yifan
Принадлежит:

A food processor, and a constant speed control method and device therefor. The method comprises the following steps: detecting a zero-crossing signal of alternating current input to a motor (50) (S1); obtaining a zero-crossing point of the alternating current according to the zero-crossing signal, and after delaying the zero-crossing point for a first preset time, outputting an ON pulse signal to a thyristor module (10), and outputting an ON pulse signal to the thyristor module (10) every second preset time, so as to drive the motor (50) to operate by means of the thyristor module (10) (S2); detecting, by means of a Hall sensor (301), a magnetic field change signal provided by a magnetic ring (302) so as to output an alternating level signal, and obtaining the rotational speed of the motor (50) by using a periodic speed measurement method according to the alternating level signal (S3); and adjusting the first preset time according to the rotational speed of the motor (50) so as to control ...

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Номер записи: 8
30-05-2023 дата публикации

Multi-modal learning level mining method and system under small sample condition and medium

Номер: CN116186250A
Автор: WANG ZHIFENG, LU ZIXIN, DONG SHI, LUO HENG, ZUO MINGZHANG, WANG JIXIN, TIAN YUAN, MIN QIUSHA, XIA DAN
Принадлежит:

The invention belongs to the technical field of personalized learning, and discloses a multi-modal learning level mining method and system under a small sample condition, and a medium, and the method comprises the steps: extracting the content features and attribute features of test questions and the test question performance features of students, introducing BERT and VGG-16 pre-training models to represent the image-text features, and extracting the content features and attribute features of the test questions; fusing the image-text features based on the tensor to obtain test question heterogeneous fusion semantic features; estimating a learning state vector based on a bidirectional recurrent neural network and an attention weight between questions by combining a question heterogeneous fusion semantic feature and a student question performance feature; and predicting the test question performance of the student and analyzing and predicting the knowledge mastering matrix of the student ...

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Номер записи: 9
02-05-2013 дата публикации

RECORD PLAYBACK ATTACK DETECTION METHOD AND SYSTEM BASED ON CHANNEL MODE NOISE

Номер: WO2013060079A1
Автор: HE, Qianhua, WANG, Zhifeng, LUO, Haiyu, CHEN, Fen
Принадлежит:

The present invention relates to the technical field of intelligent voice signal processing, mode recognition and artificial intelligence, and particularly to a record playback attack detection method and system based on channel mode noise in a speaker recognition system. Disclosed is a more simple and highly-efficient record playback attack detection method in a speaker recognition system. The steps of the method are as follows: (1) inputting a voice signal to be recognized; (2) preprocessing the voice signal; (3) extracting channel mode noise in the preprocessed voice signal; (4) extracting long-term statistic features based on channel mode noise; and (5) classifying the long-term statistic features based on a channel noise classification decision model. The present invention performs record playback attack detection using channel mode noise, and the extracted features have low dimension number, the calculation complexity is low, and the recognition error rate is low. Therefore, the security ...

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Номер записи: 10
01-06-2017 дата публикации

ELECTROMAGNETIC HEATING DEVICE

Номер: WO2017088244A1
Автор: MAO, Hongjian, LIU, Zhicai, WANG, Zhifeng, CHEN, Yifan, FENG, Jiangping, MA, Zhiha, QU, Dali
Принадлежит:

Disclosed is an electromagnetic heating device, comprising: an electromagnetic heating unit, an infra-red heating unit (11) and an MCU (8). The MCU (8) is connected to the electromagnetic heating unit and the infra-red heating unit (11), and is used for controlling heating using either or both of the electromagnetic heating unit and the infra-red heating unit (11). Since the electromagnetic heating device comprises the electromagnetic heating unit and the infra-red heating unit (11), heating utensils of various materials can be heated, and the application range thereof is wide with little restriction. Moreover, because the electromagnetic heating device comprises the infra-red heating unit (11), the maximum heating power of the electromagnetic heating device is not limited by the maximum heating power of coil disks (130, 240).

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Номер записи: 11
11-08-2016 дата публикации

ELECTROMAGNETIC HEATING CONTROL CIRCUIT AND ELECTROMAGNETIC HEATING DEVICE

Номер: WO2016123897A1
Автор: LIU, Zhicai, WANG, Zhifeng, WENG, Wenfeng, QU, Dali, MA, Zhihai, WU, Shirun, CHEN, Yifan, WANG, Xinyuan
Принадлежит:

Disclosed is an electromagnetic heating control circuit, comprising a control chip, a rectifier filter circuit, a resonant capacitor, a switching transistor, a drive circuit, and a synchronous voltage detection circuit. The switching transistor comprises a first end, a second end, and a control end. The first end is connected to a positive output end of the rectifier filter circuit by using the resonant capacitor. The second end is connected to a negative output end of the rectifier filter circuit by using a current limiting resistor. The control chip comprises a positive phase voltage input end, a negative phase voltage input end, a voltage detection end, and a signal input end. The positive phase voltage input end and the negative phase voltage input end detect voltages at two ends of the resonant capacitor by using the synchronous voltage detection circuit. The signal output end is connected to the control end by using the drive circuit. The voltage detection end is connected to the ...

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Номер записи: 12
23-07-2020 дата публикации

BLOCKCHAIN-BASED SAFE TRANSACTION METHOD, DEVICE AND APPARATUS, AND STORAGE MEDIUM

Номер: WO2020147384A1
Автор: WANG, Zhifeng
Принадлежит:

The present invention relates to the technical field of blockchains. Provided are a blockchain-based safe transaction method, device and apparatus, and a storage medium. The method comprises: receiving a transaction request triggered by a user, and acquiring, according to the transaction request, an object to be signed and a locally installed first digital certificate (S10); determining, according to a preset first mapping relationship table, a blockchain transaction private key corresponding to the first digital certificate (S20), the first mapping relationship table indicating correspondence relationships between first digital certificates installed in respective user terminals and blockchain transaction private keys possessed by respective users; and affixing a signature to the object according to the blockchain transaction private key (S30).

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Номер записи: 13
12-09-2019 дата публикации

TOUCH BUTTON STRUCTURE AND ELECTRICAL DEVICE

Номер: WO2019169839A1
Автор: LIU, Xiaokai, SUN, Yi, HE, Baifeng, WANG, Zhifeng, OU, Dali, CAO, Dahua, WANG, Qi, HUANG, Yuhua
Принадлежит:

Provided is a touch button structure (100) and electrical device; said touch button structure (100) comprises a touch panel (1), a circuit board (2), and a conductive medium (3); the front side of the touch panel (1) has a button area for a user to touch; the circuit board (2) is disposed at the rear of the touch panel (1); a sensing electrode (21) is disposed on the circuit board (2) corresponding to the button area; the conductive medium (3) is disposed between the button area and the sensing electrode (21).

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Номер записи: 14
27-02-2020 дата публикации

PRESSURE COOKING UTENSIL, AND CONTROL METHOD AND DEVICE THEREFOR

Номер: WO2020038209A1
Автор: HUANG, Shufeng, WANG, Zhifeng, LIU, Wenhua, REN, Xiangxi, LUO, Feilong
Принадлежит:

A pressure cooking utensil (100) and a control method and device therefor. The control method comprises: acquiring a temperature in a pressure utensil (100) (S11); determining whether the temperature in the pressure cooking utensil (100) is greater than a first preset temperature threshold (S12); if so, further determining whether the temperature in the pressure cooking utensil (100) is within a first preset temperature range; if so, controlling the pressure in the pressure cooking utensil (100) to be within a first pressure range; if the temperature of the pressure cooking utensil (100) is greater than the first preset temperature range, further determining whether the temperature in the pressure cooking utensil (100) is within a second preset temperature range; and if so, controlling the pressure in the pressure cooking utensil (100) to be within a second pressure range (S13). In the present invention, boiling is able to be achieved at a low temperature, while achieving an optimum boiling ...

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Номер записи: 15
12-09-2019 дата публикации

FOOD PROCESSOR AND ELECTRIC MOTOR FOR FOOD PROCESSOR

Номер: WO2019169828A1
Автор: LIANG, Xiantang, CHEN, Liancheng, PANG, Congshan, WANG, Zhifeng, XIAO, Lei, YANG, Zhenfeng
Принадлежит:

Disclosed are a food processor (200) and an electric motor (100) for the food processor (200). The electric motor (100) comprises: a stator core (10), the stator core (10) comprising an annular stator yoke portion (11) and a plurality of stator toothed portions (12) provided on an inner peripheral surface of the stator yoke portion (11), wherein a stator toothed groove (101) is formed between two adjacent yoke toothed portions (12), the plurality of stator toothed portions (12) define a stator bore (102) coaxial with the stator yoke portion (11), and the outer contour of the radial section of the stator yoke portion (11) is substantially circular and has a maximum radial dimension D; and a rotor core (20), the rotor core (20) being rotatably arranged inside the stator bore (102) and coaxial with the stator bore (102), and the rotor core (20) having a maximum radial dimension d, wherein D and d satisfy: 0.4 ≤ d/D ≤ 0.55.

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Номер записи: 16
05-03-2020 дата публикации

COOKING CONTROL METHOD AND APPARATUS, COOKING UTENSIL, AND COMPUTER-READABLE STORAGE MEDIUM

Номер: WO2020042510A1
Автор: LIU, Jingsheng, WANG, Zhifeng, LIU, Zhicai, FENG, Jiangping, OU, Dali, MA, Zhihai, LIU, Chuanlan
Принадлежит:

Provided are a cooking control method and apparatus, a cooking utensil, and a computer-readable storage medium. The cooking control method comprises: during the execution of a cooking process, if it is detected that a power supply signal is switched from a mains signal to a battery signal, recording the time when the power supply signal is switched as a power-down time; if it is detected that the power supply signal is recovered from the battery signal to the mains signal, recording the time when the power supply signal is recovered as a power-on time; and determining, according to a time interval between the power-down time and the power-on time, whether the cooking process is continuously executed. By means of the technical solution of the present disclosure, the problem of the termination of an automatic cooking process caused by powering-down can be effectively solved. In addition, determining whether the automatic cooking process is continuously executed in combination with the power-down ...

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Номер записи: 17
18-04-2023 дата публикации

Mobile robot tracking method based on IC smart card

Номер: CN115981335A
Автор: CHEN YOUPENG, WANG ZHIFENG, LI GUONIAN, LIU ZHANMEI, WANG PEIZHOU, ZHENG HUANNAN, XU WENYAN, DU YUXIANG, TONG JUN, CAO JIAN
Принадлежит:

The invention discloses a mobile robot tracking method based on an IC intelligent card. The mobile robot tracking method comprises the following steps: selecting M fixed point positions in a moving area; an IC card wafer is correspondingly arranged at each fixed point position; a target path is planned in the moving area, all fixed point positions where the target path needs to pass are selected from the M fixed point positions to serve as target positions, and the storage information of each IC card wafer comprises path guiding information from the current target position to the next target position; the radio frequency reader-writer of the mobile robot starts to acquire the path guiding information of the IC card wafers from the starting point position, and the mobile robot moves to the next target position based on the path guiding information, acquired by the radio frequency reader-writer, of each IC card wafer until the mobile robot reaches the ending point position. The target guiding ...

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Номер записи: 18
26-05-2023 дата публикации

Material lifting equipment for building engineering construction

Номер: CN116163519A
Автор: WANG ZHIFENG, LI FENG
Принадлежит:

The material lifting equipment for building engineering construction comprises a carrying platform, two shear type lifting platforms with the distance adjustable are installed in the carrying platform, and a bearing mechanism is installed at the position, corresponding to the position between the two shear type lifting platforms, of the middle of the carrying platform; traction mechanisms connected with the bearing mechanism are installed on the surfaces of the two shear type telescopic frames, the bearing mechanism comprises two symmetrically-arranged side hanging plates and a material carrying table arranged between the two side hanging plates, a buffering bag cushion is installed between the opposite surfaces of the material carrying table and the carrying platform, and an electromagnetic exhaust valve is installed at the bottom of the buffering bag cushion. According to the building material lifting device, through the arrangement of the double-shear type lifting platform and the traction ...

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Номер записи: 19
07-05-2020 дата публикации

OPERATION CONTROL METHOD AND DEVICE FOR LIQUID INLET VALVE, COOKING UTENSIL AND STORAGE MEDIUM

Номер: WO2020087932A1
Автор: LIU, Jingsheng, WANG, Zhifeng, ZHOU, Zhongbao, MA, Zhihai, LIU, Chuanlan, LIU, Zhicai, ZHOU, Ya, FENG, Jiangping, OU, Dali
Принадлежит:

Disclosed is an operation control method for a liquid inlet valve. The method comprises: controlling, in response to a liquid supply instruction, a liquid inlet valve to open, so that a fixed amount of liquid enters a cooking section through the liquid inlet valve; during the opening of the liquid inlet valve, measuring whether the opening duration is greater than or equal to a timed duration, and measuring whether the liquid amount in the cooking cavity is greater than or equal to the target liquid amount corresponding to the liquid supply instruction; and according to the measurement results during the opening of the liquid inlet valve, controlling the liquid inlet valve to remain closed and power off, or controlling the liquid inlet valve to open again to supply liquid. The operation control method can effectively reduce the occurrence of burnout by heating of the liquid inlet valve due to long-time operation. Also disclosed are an operation control device for a liquid inlet valve, a ...

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Номер записи: 20
13-06-2023 дата публикации

Intelligent food unfreezing machine

Номер: CN116250607A
Автор: WANG DAIJIE, WANG ZHIFENG, ZHANG LING
Принадлежит:

The invention discloses an intelligent food unfreezing machine which comprises a machine body, one side of the machine body is connected with a machine door, a controller is installed on the machine door, a circulating pipeline is installed on one side in the machine body, a circulating air opening is formed in the bottom of the circulating pipeline, the top of the circulating pipeline communicates with a first fan, the first fan is connected with a condensing coil, and the condensing coil is connected with a second fan. The first fan is connected with the condensing coil, the second fan is connected with the evaporating coil, the evaporating coil is connected with the air outlet, the first fan, the condensing coil, the second fan and the evaporating coil are all connected with the controller, a temperature sensor and a vacuum degree sensor are installed in the machine body, and a vacuum degree adjusting device is installed on one side of the machine body and communicated with the interior ...

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Номер записи: 21
25-08-2023 дата публикации

Purification and recovery system for cutting fluid

Номер: CN116638367A
Автор: WU YIXIN, WU YURONG, CAI MAOJUN, LIN ZHONGFENG, WANG ZHIHONG, WANG ZHIFENG, WU JIANCHENG
Принадлежит:

The invention relates to the field of automobile part production and machining, in particular to a cutting fluid purification and recovery system which comprises a machining machine table, a recovery flow channel and a rough filtration sedimentation tank. A cutting fluid output port is formed in the bottom of the machining machine table, one end of the recycling flow channel is connected with the cutting fluid output port, and the other end of the recycling flow channel obliquely extends downwards and is connected with the rough filtration sedimentation tank. The cutting fluid purification and recovery system has the beneficial effects that in the provided cutting fluid purification and recovery system, the multiple machining tables can be arranged, and due to the fact that the recovery flow channel is inclined, cutting fluid output from the machining tables can automatically flow downwards to flow through the rough filtration sedimentation tank due to the dead weight; cutting fluid of ...

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Номер записи: 22
18-04-2023 дата публикации

Preparation method and application of organic dye based on dihydroindene-1, 3-diketone derivative

Номер: CN115975394A
Автор: GONG TAO, SUN KE, WANG ZHIFENG, ZHAO LUN, ZHANG LIANG, LI XIAOLIN, JI JIANCHENG, CHEN WEI
Принадлежит:

The invention discloses a preparation method and application of an organic dye based on a dihydroindene-1, 3-diketone derivative, and relates to the technical field of photocuring. The compound of the organic dye prepared by the invention has photochemical properties such as high absorbance and high oxidation-reduction property, can emit fluorescence of different colors, is pure organic fluorescent small molecules, and can achieve high light initiation efficiency while part of organic dye molecules have an uncommon photobleaching phenomenon. The dye molecule is combined with an iodized salt and an ammonium salt to be directly used as a three-component photo-initiation system in photocuring, and under illumination of a 405nm LED, a resin monomer trimethylolpropane triacrylate TMPTA (or monomers such as hexanediol diacrylate HDDA and the like) can be polymerized to obtain a photo-polymerization product with smooth and flat surface, high color purity and high fluorescence; the method has important ...

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Номер записи: 23
25-07-2023 дата публикации

Automatic centering method for high-precision treatment head

Номер: CN116474278A
Автор: LI YANFEI, MA WENLONG, GAO XUELIANG, CAO XUE, CHOI KYUNG-WON, YU XINGCHUN, WANG ZHIFENG
Принадлежит:

The invention discloses an automatic centering method for a high-precision treatment head. The automatic centering method comprises the following steps: 1, calibrating an image pickup system of a camera; 2, a camera Cam1 obtains the texture of a third identification ring, the position of an identification disc is determined, and a treatment head preliminarily positions planning of a motion track; thirdly, the mechanical arm moves to enable the treatment head to move to an alignment preparation position, and preliminary centering of the treatment head is achieved; 4, the camera CAN2 and the camera CAN3 obtain the texture of the first identification ring and the third identification ring on the identification disc, the relative position of the treatment head and the identification disc is determined, and the treatment head precisely positions the movement track; and 5, the processor controls the mechanical arm to move, so that the treatment head and the light limiting cylinder are accurately ...

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Номер записи: 24
13-04-2021 дата публикации

Combined kit with multi-reagent bottle storage structure

Номер: CN212951792U
Автор: WANG ZHIFENG, CAI MINGHUI, 王志锋, 蔡名辉
Принадлежит: SHANGHAI JIANGLAI IND CO LTD, SHANGHAI JIANGLAI INDUSTRIAL CO., LTD., 上海将来实业股份有限公司

The utility model discloses a combined kit with a multi-reagent bottle storage structure, which is characterized in that a storage assembly is arranged in the kit, a top plate is arranged in the middle of the kit, a movable box is arranged between the top plate and an end box, C-shaped clamping rings are uniformly arranged in the movable box, and T-shaped sliding blocks are fixedly arranged at the bottoms of two ends of the side surface, far away from the top plate, of the movable box; pins are installed at the positions, corresponding to the limiting rings, of the top ends of the front face and the back face of the kit in a penetrating mode, the kit is provided with a connecting assembly, and a guiding opening is formed in the position, close to the middle of the embedding opening, of the bottom face of the kit. The top plate is limited through the limiting rings and the pins, fixing is stable, a box cover is not needed, after the pins are pulled out, the ejection springs push the top ...

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Номер записи: 25
13-06-2023 дата публикации

Multi-modal knowledge level evaluation and learning performance prediction method and system, and medium

Номер: CN116258056A
Автор: WANG ZHIFENG, LU ZIXIN, ZUO MINGZHANG, WANG JIXIN, DONG SHI, LUO HENG, TIAN YUAN, MIN QIUSHA, XIA DAN
Принадлежит:

The invention belongs to the technical field of personalized learning, and discloses a multi-modal knowledge level evaluation and learning performance prediction method and system and a medium, and the method comprises the steps: collecting the learning behavior characteristics and learning resource characteristics of a learner, introducing a recurrent neural network and a convolutional neural network, and carrying out the prediction of the learning behavior characteristics and learning resource characteristics; performing representation learning on the text semantic features and the image semantic features of the test questions, and obtaining test question fusion semantic features through feature fusion; constructing a learning state tracking model based on gating, and predicting a common knowledge increment to be acquired by the student; the general knowledge increment representing the learner and the test question fusion semantic features are fused, the answer response of the learner ...

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Номер записи: 26
14-07-2023 дата публикации

Low-load energy-saving mud scraper

Номер: CN116422026A
Автор: MENG QINGYU, LIU QICHENG, QIN CHUNYU, YING MEIJUAN, GAO BAOHUA, LI YAN, WANG ZHIFENG, ZHANG HENG, WU BIAO, ZHOU GUOLI, LYU MINGYANG
Принадлежит:

The invention provides a low-load energy-saving sludge scraper, which is used for scraping sludge at the bottom of a sedimentation tank and/or scum on the surface of the sedimentation tank, and comprises at least two pairs of chain wheels, each pair of chain wheels is oppositely arranged on a pair of inner side walls of the sedimentation tank; each non-metal chain is wound on all the chain wheels on one inner side wall; the plurality of scrapers are uniformly distributed on the outer edges of the pair of non-metal chains, a pair of rolling wheels is arranged at each of the two ends of each scraper, and the inner sides of the pair of rolling wheels of each scraper are respectively connected with a pair of non-metal chains; and the pair of tank surface rails are oppositely arranged on the tank surface areas of the pair of inner side walls of the sedimentation tank and are used for supporting the pair of non-metal chains to drive the plurality of scrapers to circularly rotate on the tank surface ...

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Номер записи: 27
09-06-2023 дата публикации

Device capable of stably storing liquid instrument air

Номер: CN116241795A
Автор: FAN XIAOHUA, SUN XITANG, WANG ZHIFENG
Принадлежит:

The invention provides a device capable of stably storing liquid instrument air, and relates to the field of instrument air storage. The device capable of stably storing the liquid-state instrument air comprises a feeding assembly and a liquid-state instrument air storage assembly, wherein raw material air is discharged from an outlet of the feeding assembly; the heat exchanger is communicated with an outlet of the feeding assembly so as to cool the raw material air into liquid air to be discharged; the vacuum storage tank is provided with a storage part and a vacuum part wrapping the outer side of the storage part; an outlet of the heat exchanger is communicated with the storage part so as to guide the liquid air into the storage part; and the upper gas phase layer of the storage part forms a helium environment.

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Номер записи: 28
09-05-2023 дата публикации

Map construction method of mobile robot

Номер: CN116086434A
Автор: ZHENG HUANNAN, WANG ZHIFENG, CHEN YOUPENG, LI GUONIAN, WANG PEIZHOU, XU WENYAN, DU YUXIANG, TONG JUN, FAN JINWEI, CAO JIAN
Принадлежит:

The invention provides a map construction method of a mobile robot, which comprises the following steps: S100, scanning an unknown area closest to a current position in a raster map, and planning a nearest path by using an A star algorithm; s200, scanning the surrounding environment through a sensor carried by the mobile robot, and recording the surrounding environment in a grid map; s300, detecting whether a closed boundary exists in the grid map or not, returning to the step S100 if the closed boundary is not detected, and executing the step S400 if the closed boundary is detected; and S400, detecting whether an unknown region exists in the closed boundary of the grid map, if the unknown region is detected, returning to the step S100, and if the unknown region is not detected, indicating that the map construction is completed. According to the method, the mobile robot accurately constructs the grid map in an unknown environment so as to guide the mobile robot to work in the environment ...

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Номер записи: 29
18-04-2023 дата публикации

Synthetic method and application of organic dye fluorescent small molecule material

Номер: CN115974846A
Автор: GONG TAO, SUN KE, WANG ZHIFENG, JI JIANCHENG, ZHANG LIANG, LI XIAOLIN, ZHAO LUN, GAN ZENGKANG, CHEN WEI
Принадлежит:

The invention discloses a synthetic method of an organic dye fluorescent small molecular material, which is based on 2-(N-ethyl carbazole)-2-styryl, and comprises the following steps: preparing (Z/E)-3-(9-ethyl-9H-carbazole-3-yl)-3-phenylacrolein, and reacting the (Z/E)-3-(9-ethyl-9H-carbazole-3-yl)-3-phenylacrolein with organic molecules to obtain the organic dye fluorescent small molecular material. The organic dye fluorescent molecular material provided by the invention has photochemical properties of high absorbance and high oxidation-reduction property, can emit fluorescence of different colors, and can achieve high light initiation efficiency and effectively avoid the photobleaching phenomenon of organic dye molecules. The dye molecules are combined with iodized salt and ammonium salt to be directly used as a three-component photo-initiation system in photocuring, under illumination of a 405nm LED, a photopolymerization product with a smooth and flat surface, high color purity and ...

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Номер записи: 30
04-04-2023 дата публикации

Security login method for enhancing weak password and server

Номер: CN115906054A
Автор: LONG FEI, GUO HAIWEI, WANG ZHIFENG, WANG HAIYANG, MENG YUPING, DU ZHIHONG, GENG HONGTAO, LIU LINGLING
Принадлежит:

The invention provides a secure login method for enhancing a weak password and a server, and belongs to the technical field of login verification. When a user inputs a user name and a password, the client obtains login information and generates a login information character string; meanwhile, obtaining a random character string, and combining the input password with the random character string; and combining with the login information character string to generate a character string to be verified. The client sends the user name and the to-be-verified character string to the server, and the server decrypts the to-be-verified character string to obtain a second intermediate character string; and continuing to obtain the random character string and the original password, and combining the original password with the random character string to generate a third intermediate character string. If the second intermediate character string is the same as the third intermediate character string, allowing ...

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Номер записи: 31
30-06-2023 дата публикации

Learner cognition tracking method and system oriented to learning process evaluation

Номер: CN116361744A
Автор: WANG ZHIFENG, LI LUYAO, ZENG CHUNYAN, ZUO MINGZHANG, LUO HENG, DONG SHI, TIAN YUAN, CHEN DI, MIN QIUSHA, XIA DAN
Принадлежит:

The invention belongs to the technical field of intelligent learning evaluation, and discloses a learning process evaluation-oriented learner cognition tracking method and system, and the method comprises the steps: collecting data, carrying out the multi-dimensional feature extraction based on a test question knowledge cognition tensor TKC, and generating an answer feature original tetrad; hyper-parameters are set, an original tetrad is processed into an isometric data format, answer features of different dimensions are coded respectively and then fused and embedded, and hierarchical embedding representation is obtained; the method comprises the following steps: constructing a cognitive tracking unit on the basis of four gate structures of Slip Gate, Guess Gate, Level Gate and Output Gate, and constructing a deep cognitive tracking model of a fusion gate structure; and tracking and outputting cognitive levels of the learner for each knowledge point at different moments, and predicting ...

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Номер записи: 32
08-08-2023 дата публикации

Speaker recognition method based on deep convolution encoder

Номер: CN116564340A
Автор: CHEN ZENGZHAO, ZHENG QIUYU, WANG ZHIFENG, LIU HAI, JIANG XINXING, WANG ZHUO, WANG ZHENG, LIU CHUAN
Принадлежит:

The invention discloses a speaker recognition method based on a deep convolutional encoder, and belongs to the technical field of speech recognition. The method comprises the following steps: firstly, receiving to-be-recognized voice of a speaker; segmenting the to-be-recognized voice according to a preset duration and performing data enhancement; extracting Mel spectrum features from each audio clip; and finally, inputting the Mel spectrum features into a pre-trained recognition model, and outputting the speaker identity of the to-be-recognized voice. Compared with a mainstream speaker recognition method, the speaker recognition method provided by the invention has the advantage that the accuracy is obviously improved.

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Номер записи: 33
11-07-2023 дата публикации

Plant community optimal configuration method for rapid carbon sequestration and sink increase of saline-alkali grassland

Номер: CN116415711A
Автор: GAO YANG, LIU JIAN, QU LUHAO, WANG DUOJIA, YU BOYANG, YU HONGZHU, LIU JUN, QI BAOLIN, GAO SHAN, YAN CHENGMING, JIANG TINGTING, LEE CHUNG-HWA, WANG ZHIFENG, GENG HUI, GUO XINGYU, LIU WENLIANG
Принадлежит:

The invention discloses a saline-alkali grassland rapid carbon sequestration and sink increase plant community optimal configuration method, which comprises the steps of target plot selection and plant community construction, and in the plant community construction, firstly, compositae, leguminous and gramineous functional group plants are selected as target plant groups; dividing a seed introduction zone and a propagule transplantation zone in the target land parcel, alternately arranging the seed introduction zone and the propagule transplantation zone, sowing leguminous plants and compositae plants in the seed introduction zone, and transplanting gramineous plants in the propagule transplantation zone; finally, in the first year of community construction, the plant density in unit area in the community is controlled to be 200-240 plants/m < 2 > in a removing or transplanting mode, and in the next year of community construction, the plant density in unit area in the community is controlled ...

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Номер записи: 34
16-05-2023 дата публикации

Preparation method and application of polyvinylidene fluoride/expanded graphite composite material

Номер: CN116120682A
Автор: TONG JUN, FAN JINWEI, WANG ZHIFENG, LI WEI, WANG PEIZHOU, CAO JIAN, GONG TAO, ZHU ZIMING, LIU ZHANMEI
Принадлежит:

The invention discloses a preparation method and application of a polyvinylidene fluoride/expanded graphite composite material, and relates to the field of composite materials. According to the method, the maleic anhydride, the expanded graphite and the polyvinylidene fluoride are added into the melting cavity of the internal mixer for mixing to promote dispersion of the expanded graphite in the polyvinylidene fluoride, the operation process is simple, convenient and easy to control, the processing period is short, the production cost is low, popularization is easy, and the application prospect is wide. In addition, the interaction between the polyvinylidene fluoride and the expanded graphite is enhanced by utilizing the hydrogen-bond interaction between the maleic anhydride and the polyvinylidene fluoride and the covalent bond interaction between negative electron active points at the edge of an expanded graphite sheet layer in the mixing process, so that the dispersion of the expanded ...

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Номер записи: 35
06-07-2016 дата публикации

No linear heat generation rate transmitting circuit , electromagnetism stove, no linear heat generation rate receiving circuit and temperature measuring unit

Номер: CN0205377464U
Автор: LIU ZHICAI, WANG ZHIFENG, OU DALI, CHEN YIFAN, MA ZHIHAI, FENG JIANGPING, WU SHIRUN
Принадлежит:

... 本实用新型公开了一种无线功率发送电路、电磁炉、无线功率接收电路及测温单元，涉及电磁技术领域，所述无线功率发送电路包括：依次连接的微控制器、场效应管驱动器、半桥逆变电路和谐振电路，所述谐振电路包括：串联连接的发射线圈和电容。本实用新型通过PWM波来生成交流电，在无线功率传输过程中，能够通过调节PWM波来调节传输的功率，避免了无线功率接收电路因为功率过大而烧毁的可能，提高了测温单元的使用寿命。 ...

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Номер записи: 36
11-08-2023 дата публикации

Traditional Chinese medicine composition for treating prostatitis and preparation method and application thereof

Номер: CN116570696A
Автор: YANG JUN, SU HAIYAN, WANG ZHIFENG, WANG CHENDONG, WANG XUEQIN, TIAN JIALU, LIU HUINIAN, ZHANG JING
Принадлежит:

The invention discloses a traditional Chinese medicine composition for treating prostatitis as well as a preparation method and application thereof, and belongs to the technical field of medicines. The traditional Chinese medicine composition is prepared from the following raw materials: astragalus membranaceus, pseudo-ginseng, cortex phellodendri, herba violae, honey-processed aconitum sinomontanum, herba patriniae, radix angelicae, felwort, radix rubiae, semen coicis, polyporus umbellatus, phaseolus calcaratus, cassia twig, wine-processed radix paeoniae alba, radix bupleuri, curcuma zedoary, rhizoma cyperi, radix achyranthis bidentatae, semen litchi, raspberry, herba epimedii and liquorice. The traditional Chinese medicine composition disclosed by the invention is applied to preparation of medicines for preventing or/and treating prostatitis or/and improving immunity; the invention relates to application in preparation of drugs for relieving pain or/and urination problems caused by prostatitis ...

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Номер записи: 37
22-08-2023 дата публикации

Speech emotion recognition method based on multi-scale space-time attention mechanism

Номер: CN116631449A
Автор: WANG ZHIFENG, CHEN ZENGZHAO, LIN MENGTING, WANG BING, FENG ZIZUO, GONG BIN, HUANG WENKAI, ZHAO CHUANXU
Принадлежит:

The invention discloses a speech emotion recognition method based on a multi-scale space-time attention mechanism, and belongs to the technical field of speech analysis. The method comprises the following steps: firstly, respectively extracting frame-level features and utterance-level features from preprocessed voice segments; extracting frame-level depth space features and frame-level depth time features from the frame-level features; combining the frame-level depth space feature and the frame-level depth time feature to obtain a frame-level depth emotion feature; extracting utterance-level deep emotion features from the utterance-level features; fusing the frame-level depth emotion features and the utterance-level depth emotion features based on a multi-head attention mechanism; and finally, optimizing the model by utilizing a loss function, outputting sentiment classification of the voice segments through the model, and finally, deciding sentiment classification of the whole voice by ...

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Номер записи: 38
07-04-2023 дата публикации

Mathematical resource knowledge attribute extraction-oriented method, system and equipment

Номер: CN115935965A
Автор: DONG SHI, TAO XUEYUN, WANG ZHIFENG, TANG JIAYU, CHENG HAOZHEN, NIU XIAOBEI, TIAN YUAN, CHEN DI, ZUO MINGZHANG
Принадлежит:

The invention provides a mathematical resource-oriented knowledge attribute extraction method, system and device, and relates to the field of natural language processing and online learning, and the method comprises the steps: extracting knowledge attributes from mathematical expressions in mathematical learning resources; performing importance degree sorting on the knowledge attributes; judging whether the knowledge attribute number is greater than a given threshold; when the number is greater than the threshold value, fusing circulating knowledge attributes in the knowledge attributes, and judging whether the number of the knowledge attributes is greater than the threshold value again; if yes, eliminating the knowledge attributes with low redundancy importance degree; and when the knowledge attribute number is less than the threshold, returning to the superior judgment until the knowledge attribute number is less than or equal to the threshold, and ending the judgment. According to the ...

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Номер записи: 39
29-06-2016 дата публикации

Novel heavy automobile engine of section cover

Номер: CN0205345061U
Автор: SHI LEI, LIU TIANSHUN, MA JIANHUA, WANG ZHIFENG, KANG AIMIN, WANG TAO, QIN JINGZHEN, XIA TIAN, ZHAO WENXING
Принадлежит:

... 本实用新型公开了一种新型重型汽车发动机罩，属于车身覆盖件。主要是针对HOWO驾驶室的车身覆盖件，包括发动机罩前段、发动机罩中段、发动机罩后段。本实用新型降低了发动机罩前段的高度，扩展了驾驶室空间，与此同时，还在发动机罩前段底部设置了加强纵梁和加强横梁，以此保证发动机罩的强度及承载能力，提高了驾驶室的舒适性、安全性。另外在该实用新型发动机罩前段上加设了焊接方螺母，给内饰件提供了安装位置，为储物盒的安装固定提供了方便，储物盒的安装提高了驾驶室使用的便捷性。此款发动机罩设计在结构和实用性方面都是一种创新，能充分满足驾驶室的舒适性和安全性要求。 ...

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Номер записи: 40