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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 18. Отображено 18.
22-08-2023 дата публикации

Line protection method and device for direct current overhead line interelectrode short circuit fault

Номер: CN116632794A
Автор: KONG FEI, LI JIE, DING XIAOBING, YU JIANG, LIU ZHIJIANG, ZHANG CHI, LI SHUYONG
Принадлежит:

The invention relates to the technical field of line protection, and discloses a line protection method and device for a direct current overhead line interelectrode short circuit fault. The method comprises the following steps: collecting direct-current voltage and direct-current at the same side of a pole 1 line and a pole 2 line in a direct-current overhead line; judging whether the direct current voltage and the direct current meet preset line protection criteria for the direct current overhead line interelectrode short circuit fault or not, and if yes, sending out a protection action signal; wherein the preset line protection criteria include that the direct-current voltage and direct-current break variables of the pole 1 line and the pole 2 line are greater than corresponding fixed values, the sum of the direct-current voltage break variables of the pole 1 line and the pole 2 line is smaller than the corresponding fixed value, and the difference of the direct-current break variables ...

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Номер записи: 1
12-05-2023 дата публикации

Transformer longitudinal differential protection error prevention method, device, equipment and medium

Номер: CN116111557A
Автор: KONG FEI, LI JIE, DING XIAOBING, YU JIANG, CHEN DEYANG, ZHANG CHI, LI SHUYONG, LIU ZHIJIANG
Принадлежит:

The invention discloses a transformer longitudinal differential protection error prevention method, device and equipment and a medium, and the method comprises the steps: calculating a differential current value through employing a primary side current and a secondary side current when the primary side current and the secondary side current are detected; if the absolute value of the differential current value is greater than a preset current threshold value, recording a starting moment, and calculating a plurality of action current absolute values in a preset criterion period from the starting moment according to a preset sampling period by adopting the primary side current and the secondary side current; calculating a plurality of corresponding action current slope absolute values according to the plurality of action current absolute values; whether the action current absolute value and the action current slope absolute value meet preset protection outlet locking conditions or not is judged ...

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Номер записи: 2
25-08-2023 дата публикации

Detection method and device for position signal abnormity of switch knife switch

Номер: CN116643160A
Автор: CHEN QINLEI, LI SHUYONG, LIN XUEHUA, LIU ZHIJIANG, GUO QI, TU LIANG, HUANG LIBIN, LIAO MENGJUN, DENG LIJUN
Принадлежит:

The invention provides a method and device for detecting position signal abnormity of a switch disconnecting link of a direct-current power transmission system, and the method comprises the steps: determining a reference signal value according to the number of first signal collection values and the number of second signal collection values; determining a plurality of comparison results according to the reference signal value and the plurality of acquisition signal values; and determining an abnormal flag bit according to a comparison result. Judging the collection value corresponding to the maximum value in the number of the first signal collection values and the number of the second signal collection values as the actual value of the switch knife switch position signal, and comparing the judged actual value of the switch knife switch position signal with the switch knife switch position signal collection values collected by each set of control protection device one by one; therefore, the ...

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Номер записи: 3
08-08-2023 дата публикации

Automatic shunt vehicle for changing pools of bean paste tedding equipment

Номер: CN116553180A
Автор: WAN PAN, HE YUNCHUAN, XIE YE, YANG GUANGQIANG, WANG ZHOUBO, REN WEI, HOU ZHAOQUAN, ZHANG JINGTAO, FU BAILING, LIU HANYANG, CHASSI, TANG YUHENG, SONG KAI, LIU ZHIJIANG, GAO QUANYE, LU RUI, PENG YA, WANG XIAOLONG, TAO KAI, LONG LING, YANG RUI, ZHANG HUIHUA, CHEN JIAFAN, ZHANG LIANG, WANG RUI
Принадлежит:

The invention discloses an automatic shunt car for changing pools of bean paste tedding equipment. The automatic shunt car comprises a car body, a rotating mechanism, a car body walking positioning module, a safety sensing module and a control system, the vehicle body is used as a mounting carrier; the rotating mechanism is mounted on the vehicle body and is used for switching the turning direction of the tedding equipment in different tedding pools; the rotating mechanism comprises a base fixed to the vehicle body, a rotating driving assembly is arranged on the base, and a rotating panel is arranged at the output end of the rotating driving assembly; the vehicle body walking positioning modules are installed on the two sides of the walking direction of the vehicle body. The safety sensing modules are installed at the two ends of the vehicle body in the walking direction. And the control system is used for performing signal transmission with the vehicle body, the rotating mechanism, the ...

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Номер записи: 4
22-06-2016 дата публикации

Solar refrigeration, warm two economizer system

Номер: CN0205332598U
Автор: ZHANG XISHUN, LIU ZHIJIANG, ZHANG PENG
Принадлежит:

... 本实用新型公开了一种太阳能制冷、暖双节能系统，利用太阳能发电板通过光伏发电控制器将产生的电能储存到储电设备组，再通过全自动逆变电源将电输送给空气能制冷机，从而带动冷库的排管蒸发器和风机蒸发器，达到制冷，交换器可以有效降低蒸发器供液管道的温度，使制冷系统更节能，同时又可以使蒸发器回气管道的温度升高，使制冷产生的液态制冷剂蒸发，避免损坏压缩机组，也使余热增加，冷库所产生的余热可以供地暖管和中央空调使用，太阳能发电与市电可以交换使用，本实用新型通过太阳能发电来带动冷库和中央空调的制冷系统，所产生的余热供地暖、洗澡及照明等，减少了常规能源的使用，更节能环保，节约成本，符合现代人们生活的要求。 ...

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Номер записи: 5
06-06-2023 дата публикации

Energy supply chain simulation deduction method and device and electronic equipment

Номер: CN116225628A
Автор: LIU ZHIJIANG, BAI ZHIJUN, MA CHANGLU, KIM CHUL, MIAO LIANG, ZHANG ZHIJIE, HAO DAYU
Принадлежит:

The invention provides an energy supply chain simulation deduction method and device and electronic equipment, and relates to the technical field of computers. The method is applied to an energy supply chain model and comprises the steps that a model library file corresponding to the energy supply chain model is loaded through a simulation engine, initialization of the energy supply chain model is completed, a task event list is generated, and the task event list is used for representing tasks actually needing to be completed in the method; and starting a simulation cycle processing process through the simulation engine, and processing according to the task event list until the task does not exist in the task event list. According to the method, for the requirements of group integrated energy supply chain simulation deduction, a foundation is laid and guidance is provided for deepening research and application of a real-time scheduling intelligent decision-making technology by providing ...

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Номер записи: 6
01-08-2023 дата публикации

Equivalent modeling method and device of direct current transmission simulation model and storage medium

Номер: CN116522644A
Автор: GUO TIANYU, GUO QI, LU YUANHONG, LIU ZHIJIANG, HUANG LIBIN, GUO HAIPING
Принадлежит:

The invention provides an equivalent modeling method and device for a direct-current transmission simulation model and a storage medium, and the method comprises the steps: obtaining a first voltage and a first current after inputting a preset alternating-current voltage signal to an alternating-current end of a converter model in the direct-current transmission simulation model, and determining an equivalent parameter according to the first voltage and the first current; establishing a first transmission line equivalent model based on the equivalent parameters; replacing a transmission line model in the DC power transmission simulation model with the first transmission line equivalent model to obtain a first equivalent DC power transmission simulation model; and simulating the direct-current power transmission system by adopting the first equivalent direct-current power transmission simulation model to obtain a simulation result, and debugging an element model in the first equivalent direct-current ...

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Номер записи: 7
18-07-2023 дата публикации

Moisture-conducting fabric performance tester, tester assembly and testing method

Номер: CN116448622A
Автор: LI WENBIN, LIU ZHIJIANG, RAO YU, HE JIAHAO, XU WEILIN
Принадлежит:

The invention discloses a tester assembly which comprises a moisture-conducting fabric performance tester, a base, a positioning sliding rod and a lifting device, the moisture-conducting fabric performance tester comprises an upper moisture-conducting sensor, a lower moisture-conducting sensor, a water adding device and a processing unit, the upper moisture conducting sensor is used for detecting the diffusion state of moisture on the first end face of the fabric along the first diffusion face, and the upper moisture conducting sensor has fixed pressure on the fabric; the lower moisture conducting sensor is used for detecting the diffusion state of moisture on the second end face of the fabric along the first diffusion face; the water adding device is used for dropwise adding water to the fabric; the processing unit obtains moisture diffusion data of the upper moisture conduction sensor and the lower moisture conduction sensor and calculates the diffusion rate of moisture on the first diffusion ...

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Номер записи: 8
28-04-2023 дата публикации

Sand receiving and washing device

Номер: CN116020797A
Автор: ZHANG HUIHUA, REN ZHENG, YANG RUI, CHEN JIAFAN, LONG LING, WANG CHONGJING, LIU YUN, HU CHANGPING, ZHU XIAO, SONG KAI, LIU ZHIJIANG, YANG YU, LU RUI, SHENG MIN, TANG TIANRUN, DU YIFAN, CHASSI, TAO KAI, LIU HANYANG, WANG FAN, WANG RUI, ZHANG LIANG, WAN PAN, CHEN XIAOCHUAN
Принадлежит:

The invention provides a sand receiving and washing device which comprises a support, a movable part and a sand receiving part. The movable part is arranged on the bracket; the sand receiving part is arranged on the movable part and is used for receiving materials falling from the parabola; the sand washing part is arranged below the sand receiving part and is used for washing the materials received by the sand receiving part; the movable part horizontally moves along a preset straight line relative to the bracket, and the preset straight line is an extension line of a connecting line of falling points of at least two material parabolas; the sand receiving part can move along the extension line of the connecting line of the parabola drop points of the materials, so that the materials at different drop points can be received, the material receiving range is expanded, and the waste condition of the materials is reduced; and meanwhile, the materials received by the sand receiving part are ...

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Номер записи: 9
26-04-2018 дата публикации

STEAM TURBINE OVERSPEED PROTECTION SYSTEM, AND STEAM TURBINE

Номер: WO2018072740A1
Автор: LI, Yanchao, WANG, Shumin, LIU, Zhijiang, WEI, Xing, WANG, Wei, LV, Zhijia, CAO, Lihua
Принадлежит:

The present invention relates to the technical field of power plant steam turbine safety, and discloses a steam turbine overspeed protection system and a steam turbine. The steam turbine overspeed protection system comprises: a drive gear (100) arranged to match the rotation speed of a steam turbine rotor (10); a rotating shaft (201) parallel to the axis of the drive gear (100) and capable of rotating at a critical rotation speed; a protective gear (200) arranged on the rotating shaft (201) and forming a lead screw nut mechanism with the rotating shaft (201), the protective gear (200) being arranged to be capable of engaging with the drive gear (100) when the rotation speed of the drive gear (100) exceeds a critical rotation speed; and an operating rod (202) connected to the protective gear (200); when the drive gear (100) engages with the protective gear (200), the protective gear (200) can move along the direction of rotation of the rotating shaft (201) and thereby drive the operating ...

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Номер записи: 10
22-08-2023 дата публикации

Preparation method of heavily doped ITO powder

Номер: CN116621575A
Автор: LIU HONGFU, YANG JIANXIN, LIU ZHIJIANG, WANG HAO
Принадлежит:

The invention discloses a preparation method of heavily-doped ITO (indium tin oxide) powder, which comprises the following steps: step 1, preparing In and Sn salt solutions according to the mass fraction of SnO2 of 6%, co-precipitating to prepare indium tin hydroxide, and calcining to obtain ITO powder in a complete solid solution state; step 2, adding SnO2 into the ITO powder in the step 1 according to the mass fraction of 4%, and mechanically and uniformly mixing; compared with the prior art, the method has the advantages that the Sn element of the prepared powder is uniformly distributed in an In2O3 phase solid solution and particles, the solid solution and segregation phenomena in the later sintering process are avoided, the uniformity and the electrical stability of the structure components of the ITO target material can be greatly improved, meanwhile, the chemical migration process in the sintering process is shortened, and the yield of the ITO target material is improved. And the ...

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Номер записи: 11
14-07-2023 дата публикации

Power plant-oriented safety production risk intelligent management system and method

Номер: CN116433416A
Автор: LIU ZHIJIANG, LI DECAI, CHEN ZIYU, ZHU LIN, WANG ZHE, ZHANG SHOUHUA, AI YANKE
Принадлежит:

The invention discloses a power plant-oriented safety production risk intelligent management system and method, and relates to the technical field of power plant safety management. The system comprises a risk management system, the risk management system comprises a safety management system, a network system and a monitoring management system, and a terminal of the safety management system is connected with a personnel management module, an equipment management module, a vehicle management module and a management training module. The safety management system carries out video, infrared, temperature and positioning monitoring on operating personnel, equipment and operating vehicles in a power plant area, the monitoring management system receives monitoring information in the plant area, carries out classification processing on the received monitoring information, converts the received monitoring information into digital information, and displays the classified digital information at the ...

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Номер записи: 12
04-04-2023 дата публикации

Ultrasonic radar automatic detection device and method

Номер: CN115902851A
Автор: LIU ZHIJIANG, LIN QINGMING, CHEN YANJIE, HE YANYI
Принадлежит:

The invention relates to an ultrasonic radar angle deviation automatic detection device and method, the device comprises a detection box body, the detection box body is a closed box body, the detection box body is provided with a detection position, and the detection position is used for installing an ultrasonic radar probe needing to be detected. Sound-absorbing cotton is arranged in the detection box body and is used for isolating external noise from being mistakenly received by the ultrasonic radar probe. An angle obstacle and a calibration obstacle are further arranged in the detection box body, and sound absorption cotton is arranged between the angle obstacle and the calibration obstacle, so that mutual influence of reflected waves of the calibration obstacle and reflected waves of the angle obstacle is prevented. Wherein the calibration obstacle is arranged in the detection range of the vertical position of the ultrasonic radar probe. The angle obstacle is arranged outside the detection ...

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Номер записи: 13
04-08-2023 дата публикации

Flexible control method, system and equipment for output power of photovoltaic power generation system

Номер: CN116540830A
Автор: CHEN QINLEI, ZHANG LI, LI SHUYONG, LI SHENGNAN, GUO QI, XING CHAO, TU LIANG, CHEN YONG, HUANG LIBIN, DAI YUNHANG, ZHU YIHUA, LI JUNPENG, LIN XUEHUA, JIA KE, LIAO MENGJUN, LUO CHAO, LIU ZHIJIANG, DENG LIJUN, SU MINGZHANG
Принадлежит:

The invention relates to the technical field of photovoltaic power generation, and discloses a method, a system and equipment for flexibly controlling the output power of a photovoltaic power generation system. The method comprises the following steps: determining a value of a direct current bus voltage deviation flag bit according to a deviation between a direct current voltage on a direct current bus of the grid-connected inverter and a direct current bus voltage reference value; an improved MPPT control algorithm is adopted to control the output power of the photovoltaic power generation system; according to the improved MPPT control algorithm, the duty ratio of a switching device of the Boost circuit is changed through a corrected step length, and the corrected step length is obtained by correcting a fixed step length in the MPPT control algorithm by taking a value of a direct current bus voltage deviation flag bit as a correction coefficient. According to the method, the output of ...

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Номер записи: 14
30-05-2023 дата публикации

Coal allocation route optimization method and system under supply chain perspective

Номер: CN116187505A
Автор: LIU ZHIJIANG, ZHANG YANSHENG, ZHANG MIN, SHI PENGFEI, ZHU YONGJUN, HUANG WEIYONG, CHEN XIAOHUI, WANG HANZHONG, HUANG XIANHUA
Принадлежит:

The embodiment of the invention provides a coal allocation route optimization method and system under a supply chain perspective, and belongs to the technical field of coal supply chains. The method comprises the following steps: acquiring allocation and transportation plan information of current coal allocation and transportation, and identifying all candidate allocation and transportation route information based on the allocation and transportation plan information; based on all candidate dispatching route information, collecting preset reference item information on each dispatching route; evaluating each piece of preset reference item information on each dispatching route based on an improved Topsis algorithm, and evaluating each dispatching route based on an evaluation result of each preset reference item; and comparing the evaluation results of the dispatching routes, screening out an optimal dispatching route, and taking the dispatching route as a final dispatching route. According ...

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Номер записи: 15
27-06-2023 дата публикации

Intelligent yeast turning machine

Номер: CN116333875A
Автор: LIU ZHIJIANG, FU BAILING, WAN PAN, YANG GUANGQIANG, CAO YIQIANG, PENG YA, HE YUNCHUAN, XIE YE, WANG ZHOUBO, REN WEI, HOU ZHAOQUAN, SONG KAI, LIU HANYANG, CHASSI, TANG YUHENG, GAO QUANYE, LU RUI, WANG XIAOLONG, TAO KAI, LONG LING, WANG RUI, YANG RUI, ZHANG HUIHUA, CHEN JIAFAN, ZHANG LIANG
Принадлежит:

The invention discloses an intelligent koji turning machine, which belongs to the technical field of koji turning equipment in a sauce food fermentation process, and comprises a vehicle body, a rack, a lifting mechanism, a koji turning auger assembly, an excess material collecting device and a control system, the vehicle body can walk along a track on the strip pool; the rack is fixed on the vehicle body and is used as a mounting carrier; the lifting mechanism is vertically fixed on the rack, and the output end of the lifting mechanism is connected with the koji turning auger assembly and can drive the koji turning auger assembly to lift; the excess material collecting device is located on the vehicle body, and the excess material collecting device receives excess materials dropping from the yeast turning auger assembly when the yeast turning auger assembly ascends to a safe position; the control system is used for controlling walking positioning of the vehicle body, execution of actions ...

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Номер записи: 16
23-06-2023 дата публикации

Underwater measuring equipment collecting and releasing system for unmanned detection ship and control method

Номер: CN116281440A
Автор: BA HUIBIN, ZHANG JINGTAO, XIE CONG, HUANG GANGLIN, ZHANG ZHIYU, LU HUI, LIU ZHIJIANG, WEI WEI, LIU SHANGJUN, XU JIAN, WANG LI, CAO FUQING, DUAN XIANKE, ZHANG WENBIN, LI SI
Принадлежит:

The invention discloses an underwater measurement equipment retracting and releasing system for an unmanned detection ship. The underwater measurement equipment retracting and releasing system comprises a power mechanism unit, an execution mechanism unit and a control mechanism unit, the control mechanism unit is connected with the power mechanism unit; one end of the actuating mechanism unit is rotationally connected with the edge of a ship deck, and the other end is provided with a fixed pulley; the power mechanism unit comprises a power assembly and a wire arrangement assembly connected with the power assembly, the wire arrangement assembly comprises a wire arrangement roller and a corresponding wire guide wheel, a cable on the wire arrangement roller is led out sequentially through the wire guide wheel and a fixed pulley on the executing mechanism unit, and underwater measuring equipment is arranged at the end of the led-out cable. The invention further discloses a corresponding control ...

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Номер записи: 17
11-07-2023 дата публикации

Application of YTHDC1 gene in preparation of medicine for treating myocardial infarction

Номер: CN116411026A
Автор: ZHAO YONGCHAO, HAN WEIYU, WANG YAN, XIONG WEIDONG, DENG YI, ZHANG WEI, LIU ZHIJIANG, ZHAO RANZUN, GE JUNBO, SHI BEI
Принадлежит:

The invention belongs to the technical field of biology, and discloses application of a YTHDC1 gene in preparation of a medicine for treating myocardial infarction. The application is characterized in that the YTHDC1 gene or a nucleotide sequence having at least 90% of homology with the nucleotide sequence of the YTHDC1 gene is overexpressed in the stem cell. The preparation method of the medicine comprises the following steps: transfecting bone marrow-derived mesenchymal stem cells by using a lentiviral vector of an overexpressed YTHDC1 gene to construct a YTHDC1-BMSCs stably transfected strain; the tolerance of the YTHDC1-BMSCs stably transfected strain to an ischemic and anoxic environment is improved compared with that of bone marrow-derived mesenchymal stem cells. Animal experiments also prove that the cardiac function of the myocardial infarction rat transplanted with the YTHDC1-BMSCs stably transfected strain is remarkably improved, and the myocardial fibrosis area is reduced.

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Номер записи: 18