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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 46. Отображено 46.
30-03-2018 дата публикации

Hard X radiographic inspection photocathode of multichannel

Номер: CN0207165513U
Автор: YANG JING, SHAN LIANQIANG, WU YUCHI, ZHOU WEIMIN, YU MINGHAI, ZHANG TIANKUI, YUAN ZONGQIANG, BI BI, YANG LEI, YAN YONGHONG, DONG KEGONG, WANG SHAOYI, ZHU BIN, TAN FANG, YANG YUE, GU YUQIU
Принадлежит: LASER FUSION RES CT CHINA ACADEMY ENGINEERING PHYSICS, LASER FUSION RESEARCH CENTER, CHINA ACADEMY OF ENGINEERING PHYSICS

The utility model discloses a hard X radiographic inspection photocathode of multichannel, thus solve the hard X of prior art and penetrated the not enough problem of actual demand that does not reachof detection line photocathode temporal resolution. The utility model discloses a can produce elementary photoelectronic negative pole basement and equidistance and display negative pole passageway in the negative pole basement, negative pole passageway inner wall plates establishes alkali metal cladding material, and electron ionization alkali metal cladding material smooth elementarily producesmentally deficient second grade electron, enlargies the back through the snowslide in this second grade electron entering negative pole passageway and is received the detection at propagation to equipment at the back, is the diameter of negative pole passageway 3 mu m 30 mu m, is the interval of adjacent negative pole passageway 5 mu m 35 mu m, is the contained angle 0.1 between negative pole passageway ...

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Номер записи: 1
12-02-2014 дата публикации

Information feedback method

Номер: CN103580821A
Автор: ZHU YUTAO, ZHANG TIANKUI, ZHOU LE, HU ZHIRUI
Принадлежит:

The invention discloses an information feedback method. The information feedback method comprises the steps that according to WCIs fed back by primary cell terminals, a primary cell base station integrates the WCIs into an interference matrix set in relation to every secondary cell base station, and the interference matrix set is sent to each secondary cell base station; according to the received interference matrix set, any one secondary cell base station calculates the interference level of each corresponding secondary cell terminal, and an instruction of not conducting information feedback is sent to the secondary cell terminal comparatively calculating that the interference level is greater than a preset interference threshold value; thus, threshold judgment is not conducted on the corresponding secondary cell terminal; an instruction of conducting threshold judgment is sent to the secondary cell terminal calculating that the interference level is not greater than the preset interference ...

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Номер записи: 2
29-10-2014 дата публикации

Lifting lug

Номер: CN104118315A
Автор: ZHANG TIANKUI, DAI JUWEI, JIAN YUYANG
Принадлежит:

The invention discloses a lifting lug which is used for lifting a second component on a first component. The lifting lug comprises a metal framework and an elastic rubber block fixed in the metal framework. A first installation hole connected with the first component is formed in the upper portion of the elastic rubber block, a second installation hole connected with the second component is formed in the lower portion of the elastic rubber block, a cavity penetrating through the front and the back of the elastic rubber block is formed in the middle of the elastic rubber block, and a vertical spoke is arranged in the cavity and connected with the upper cavity wall and the lower cavity wall of the cavity. The lifting lug has the main advantages of keeping good damping performance, having stable work characteristics in various work conditions and improving work reliability. The lifting lug can serve as a device for connecting a gas exhausting pipe with a car body in a car gas exhausting system ...

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Номер записи: 3
23-06-2023 дата публикации

Double-time X-ray backlight photographing system and method based on single laser beam

Номер: CN116300293A
Автор: YU MINGHAI, LU FENG, WANG SHAOYI, YAN YONGHONG, ZHANG TIANKUI, TIAN CHAO, YANG YUE, ZHU BIN, TAN FANG, ZHANG XIAOHUI, ZHANG JIE, WEN JIAXING, XIN JIANTING, WU YUCHI, ZHOU WEIMIN, GU YUQIU
Принадлежит:

The invention relates to the field of laser fusion research and the technical field of X-ray detection, in particular to a double-moment X-ray backlight photographing system and method based on single-beam laser, and the backlight photographing method comprises the steps: generating a primary X-ray source by a primary target based on the primary focusing effect of the single-beam laser; transmission laser which does not act on the primary target is transmitted to a focusing optical device from the outer side of the primary target, secondary focusing is conducted through the focusing optical device, and focal spots of the transmission laser are reduced; a secondary X-ray source is generated based on the effect of the transmission laser after secondary focusing on the secondary target; and the image acquisition device is used for realizing backlight photographing. The objective of the invention is to solve the technical problem that only one X-ray source can be generated once when a single-beam ...

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Номер записи: 4
14-09-2011 дата публикации

Power distribution mechanism for decode-and-forward relay system

Номер: CN0102186231A
Автор: TIANKUI ZHANG, WEI WANG, SONG ZHAO, ZHIMIN ZENG, ZHANG TIANKUI, WANG WEI, ZHAO SONG, ZENG ZHIMIN
Принадлежит:

The invention provides a power distribution mechanism for a decode-and-forward relay system. The decode-and-forward relay system comprises i sending ends, i receiving ends and a relay R. The sending ends Si (i is equal to 1, 2, ...) respectively send two parts of information, wherein each part of the sending information is limited by the corresponding sending power; and the relay R receives and decodes the information and transfers the information to the receiving ends Di (i is equal to 1, 2, ...), and the information is limited by the sending power of the relay R. The power distribution mechanism of the invention distributes an index to the sending power of each part of the information in the decode-and-forward relay system, so that the power of each part is an index function of the total power and corresponds to a power index distribution factor; and the power index distribution factor in the method is used for representing the speed rate and multiplexing gain of the decode-and-forward ...

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Номер записи: 5
02-07-2014 дата публикации

User scheduling method, user scheduling device and user scheduling system

Номер: CN103906253A
Автор: ZHANG TIANKUI, ZHAO JINGJING, HU ZHIRUI, GAO QIUBIN, SUN SHAOHUI
Принадлежит:

The invention discloses a user scheduling method, a user scheduling device and a user scheduling system, and relates to communication technology. A suitable coordination area is determined for each user; frequency band resource used by each coordination area is determined; scheduled users are determined according to the proportional fair priority of the users in the coordination areas; and base stations in the coordination areas carry out coordinated multi-point multi-user multi-input multi-output (CoMP-MU-MIMO) transmission on the determined users. As frequency band resource used by each coordination area is determined after the coordination area of each user is determined, coordination among the coordination areas is reduced, and the processing complexity is lowered. Meanwhile, as the coordination area of each user is a coordination area suitable for the user, the user transmission rate is improved.

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Номер записи: 6
16-07-2014 дата публикации

Interference suppression method and device in cellular network

Номер: CN103929224A
Автор: ZHANG TIANKUI, NIU QIN, ZENG ZHIMIN, HU ZHIRUI
Принадлежит:

The invention provides an interference suppression method and device in a cellular network. The method includes the steps that a useful signal and a first interference signal sent by a first base station and a second interference signal sent by a second base station are received by a first terminal; the front of the useful signal, the front of the first interference signal and the front of the second interference signal are multiplied by an interference suppression matrix corresponding to the first terminal through the first terminal, so that inter-cell interference (ICI) generated on the first terminal by the second base station is eliminated. Data sent to the terminal are multiplied by a fixed precoding matrix and an interference aligning precoding matrix through the base stations, dimensionality of ICI is reduced, speed of all terminals in a cell are kept the same, and fairness among users is ensured; the data received by the terminals are multiplied by the interference suppression matrix ...

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Номер записи: 7
26-01-2011 дата публикации

Uplink multiuser multi-access interference elimination method and device of multi-input multi-output (MIMO) system

Номер: CN0101958770A
Автор: ZENG ZHIMIN, LU XIANGYOU, ZHANG TIANKUI, FENG CHUNYAN, WANG LI, ZHIMIN ZENG, XIANGYOU LU, TIANKUI ZHANG, CHUNYAN FENG, LI WANG
Принадлежит:

The invention discloses a multi-access interference elimination method of an uplink multiuser MIMO system, which relates to an advanced long term evolution system (LTE-Advanced). At the reception end of a base station, a null space matrix is obtained by utilizing the channel state information of the paired users and then constructed into a transformation matrix which does not reduce the channel multiplexing degree; and the transformation matrix is utilized to process a received signal so as to eliminate the multi-access interference between the paired users. When the users are scheduled, the different users using the same codebook are restricted from occupying a same time frequency resource and the probability that the users with relatively larger channel relativity are paired with each other is decreased, so as to minimize the influence of the transformation matrix on the effective signal strength. Simulation shows that the invention can remarkably reduce the multi-access interference ...

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Номер записи: 8
09-04-2021 дата публикации

Proton absolute energy spectrum measuring device

Номер: CN212932973U
Автор: TENG JIAN, DENG ZHIGANG, ZHOU WEIMIN, SHAN LIANQIANG, HE SHUKAI, ZHU BIN, WANG WEIWU, TIAN CHAO, ZHANG TIANKUI, ZHANG FENG, YUAN ZONGQIANG, 滕建, 邓志刚, 周维民, 单连强, 贺书凯, 朱斌, 王为武, 田超, 张天奎, 张锋, 袁宗强
Принадлежит: LASER FUSION RES CT CHINA ACADEMY ENGINEERING PHYSICS, LASER FUSION RESEARCH CENTER, CHINA ACADEMY OF ENGINEERING PHYSICS, 中国工程物理研究院激光聚变研究中心

The utility model discloses a proton absolute energy spectrum measuring device. The proton absolute energy spectrum measuring device comprises a Thomson ion spectrometer and a radiochromic membrane stack which are sequentially arranged from an aiming laser emitting end to an experimental target placing end; a central through hole is formed in the center of the radiation color-changing membrane stack; the axis of the central through hole is overlapped with the axis of an inlet/outlet hole of the Thomson ion spectrometer; the Thomson ion spectrometer is used for receiving the aiming laser and enabling the laser to penetrate through the central through hole of the radiation color-changing membrane stack to reach the experimental target point; the experimental target is used for receiving the experimental target laser and accelerating the experimental target laser to generate protons, the protons generated by laser acceleration irradiate the radiation color-changing membrane stack to realize ...

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Номер записи: 9
14-09-2011 дата публикации

Intercell cooperation scheduling method, system and user equipment

Номер: CN0102186212A
Автор: RUYUE LI, YONG LI, MIN REN, CHENCHEN ZHANG, FEI WANG, TIANKUI ZHANG, CHUNYAN FENG, LI RUYUE, LI YONG, REN MIN, ZHANG CHENCHEN, WANG FEI, ZHANG TIANKUI, FENG CHUNYAN
Принадлежит:

The invention provides an intercell cooperation scheduling method, comprises the steps as follows: a preferred base station selects N users with the highest priority according to the proportional fair factors, and sends a user set (U1, j, j=1...N) and the cooperation interference parameter sequence of all edge users in the set to all corresponding base stations; and after a next base station receives the user set, the weighted and scheduled priority is calculated, pair users are selected according to the weighted and scheduled priority to form paired user groups, and the selected paired user set is sent to the next base station till the preferred base station selects one paired user group from N paired user groups as a multi-cell cooperation scheduling user group after a final base station selects the paired user set. The invention further provides an intercell cooperation scheduling system and user equipment. The information quantity of interaction among the base stations can be reduced ...

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Номер записи: 10
30-05-2023 дата публикации

Resource optimization method and system based on mobile edge computing

Номер: CN116192635A
Автор: YANG DINGCHENG, YU FAN, WU FAHUI, XIAO LIN, ZHANG TIANKUI
Принадлежит:

The invention discloses a resource optimization method and system based on mobile edge computing. The resource optimization method based on mobile edge computing specifically comprises the following steps of performing simulation of a radio map of an intelligent factory; setting an initial track of the automated guided vehicle and the position of each user, and generating channel state information corresponding to the initial track; optimizing the motion trail of the automated guided vehicle according to the simulated radio map of the intelligent factory and the initial trail of the automated guided vehicle, and generating optimized channel state information corresponding to accumulation; establishing a neural network model, and generating an unloading decision by using channel state information; carrying out resource allocation to obtain an optimal unloading action; and updating an unloading strategy according to the obtained optimal unloading action to obtain an optimal unloading strategy ...

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Номер записи: 11
10-02-2010 дата публикации

Grade wireless resource management method base on dynamic cell group in cellular system

Номер: CN0100589666C
Автор: ZHANG TIANKUI, XIAO LIN, ZENG ZHIMIN, FENG CHUNYAN, WANG KANG, TIANKUI ZHANG, LIN XIAO, ZHIMIN ZENG, CHUNYAN FENG, KANG WANG
Принадлежит:

The invention discloses a classification wireless resource management method based on a dynamic district group, suitable for cellular communication system. Adjacent districts constitute a district group according to interference relationships between adjacent districts, a plurality of districts belonging to the same district group are joined up to perform wireless resource management, reducing interference between the districts and increasing performance of the edge users, ensuring requirement of service quality. Structure of the district group is updated periodically according to the interference change between the districts. The wireless resource management method in the invention is a classification method. The district group may unifiedly manage the resource distribution of a pluralityof districts inwards, also manage the resource distribution of the edge of the district. The districts in the district group are joined up in a centralized mode, also in a distributing mode. The wireless ...

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Номер записи: 12
10-08-2011 дата публикации

Bandwidth allocation method, base station and relay

Номер: CN0102149196A
Автор: FENG CHUNYAN, CAO LU, ZHANG TIANKUI, LI ZHONGFENG, CHUNYAN FENG, LU CAO, TIANKUI ZHANG, ZHONGFENG LI
Принадлежит:

The embodiment of the invention discloses a bandwidth allocation method, a base station and a relay. The method comprises the steps as follows: the bandwidth demands of a direct link, an access link and a relay link in one bandwidth allocation period are acquired; available bandwidths are allocated for each link in each subframe of each link according to the bandwidth demands of each link in one bandwidth allocation period, wherein each subframe comprises two time slots of equal length. The invention is suitable for allocating the bandwidths of a relay cellular network.

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Номер записи: 13
15-10-2014 дата публикации

Nuclear radiation shielding material

Номер: CN104103330A
Автор: HU HUASI, HU GUANG, ZHANG TIANKUI, WU YUELEI, ZHENG XIANGYANG, JIA QINGGANG
Принадлежит:

The invention discloses a nuclear radiation shielding material, which uses epoxy resin as a base material, is complemented by acid anhydride or polyamide resin as a curing agent, and is assisted with a diluent to complete the curing of material. The material component is calculated by an optimized algorithm for neutron-gamma rays, and the shielding effect of material is the best under the compound condition. The polymeric interlayer material is easily molded by a process due to low density, and the polyamide composite shielding material is convenient for mass production because of being cured under normal temperature conditions; the acid anhydride composite shielding material is molded under high temperature conditions, and has temperature tolerance of higher than 200 DEG C and excellent mechanical properties.

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Номер записи: 14
09-02-2011 дата публикации

Semi-static interference coordination method based on void cell in OFDMA cellular system

Номер: CN0101404800B
Автор: ZHANG TIANKUI, FENG CHUNYAN, ZENG ZHIMIN, ZHENG JIEYING, LIU YINLONG, XIA LU, TIANKUI ZHANG, CHUNYAN FENG, ZHIMIN ZENG, JIEYING ZHENG, YINLONG LIU, LU XIA
Принадлежит:

The invention provides a semi-static interference coordination method based on a virtual subdistrict and is suitable for a broadband honeycomb mobile communication system based on OFDMA. The method uses strong mutual interference characteristics between sectors in the virtual subdistrict, takes the virtual district as a basic interference coordination unit, and uses a soft frequency reuse method of an edge frequency bank and a center frequency band being orthometric between the sectors in the virtual subdistrict; the reuse factor frf=1 of a component channel of the center district of each sector and the reuse factor frf of the component channel of the edge district are determined according to the average verge of each sector in the virtual subdistrict and the duty factor of the center district; frf is more than one; the component channel quantity allocation of the centre and the edge of each sector in the virtual subdistrict is determined according to the duty factor of the center ...

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Номер записи: 15
31-12-2014 дата публикации

Automobile exhaust muffler

Номер: CN104251151A
Автор: JIAN YUYANG, ZHANG CHENG, ZHANG TIANKUI, DAI JUWEI
Принадлежит:

The invention discloses an automobile exhaust muffler. The automobile exhaust muffler comprises a shell (2), front and rear end covers (1, 3), a spoiler (4), a splitter plate (6), an air inlet pipe (9), a pressure regulation pipe (10) and an air outlet pipe (11), wherein the front and rear end covers (1, 3) are used for closing the front and rear ends of the shell (2); the space in the shell is partitioned into second and first expansion chambers (3, 7) and a flow choke chamber (5) by the spoiler (4) and the splitter plate (6) in sequence; air holes (15) are uniformly distributed in the spoiler (4) and the splitter plate (6); the air inlet pipe (9), the pressure regulation pipe (10) and the air outlet pipe (11) are arranged in the shell in parallel; the flow choke chamber is filled with sound-absorbing cotton (14); the automobile exhaust muffler is characterized in that a steady flow plate (13) in which air holes are distributed is additionally arranged among the end covers and the spoiler ...

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Номер записи: 16
12-08-2015 дата публикации

Coverage hole repair method and system for failed nodes in Internet of Things (IOT)

Номер: CN104837158A
Автор: XIAO LIN, JIAO JINNING, YANG DINGCHENG, ZHANG TIANKUI, ZHOU LE
Принадлежит:

The invention discloses a coverage hole repair method and system for failed nodes in Internet of Things (IOT). The method comprises the steps that a sink node conducts roll poling for remaining energy Erj of all sensor nodes in a network every T seconds; the sink node determines whether each sensor node is effective or not based on preset conditions; the sink node removes an ineffective sensor node based on determination results, and re-clusters the effective sensor nodes in the network according to the remaining energy Erj and the hill climbing algorithm based on topology potential; and the ineffective sensor node calculates the topology potential (img file shown in the description) between the ineffective sensor node and each redundant sensor node, and selecting the matched redundant sensor node to replace the ineffective sensor node according to the maximum topology potential, the principle of first come first served, or a combination of both. According to the invention, the topology ...

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Номер записи: 17
24-12-2014 дата публикации

Limited information feedback method and device

Номер: CN104243008A
Автор: CAO GEN, LU YAO, HAN XIAO, FAN BIN, SUN LEI, YU LU, ZHANG TIANKUI
Принадлежит:

An embodiment of the invention provides a limited information feedback method and device, relates to the field of communications and solves the problem that low feedback performance is caused due to same feedback-ratio bits being distributed to horizontal and vertical dimensions in the prior art. The method includes: determining a feedback bit distribution set meeting preset conditions according to antenna array configuration information of a base station and channel state information of the horizontal and vertical dimensions; generating a horizontal-dimension first codebook and a vertical-dimension codebook according to the feedback bit distribution set; determining a horizontal-dimension pre-coding matrix indicator PMIh and a vertical-horizon pre-coding matrix indicator PMIv, and transmitting the feedback bit distribution set, the pre-coding matrix indicator PMIh and the pre-coding matrix indicator PMIv to the base station. The limited information feedback method and device is applicable ...

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Номер записи: 18
08-10-2014 дата публикации

Content central multi-hop cellular network routing method and device

Номер: CN104093181A
Автор: ZHANG TIANKUI, ZHOU LE, XU XIAOGENG, ZENG ZHIMIN
Принадлежит:

The embodiment of the invention provides a content central multi-hop cellular network routing method and device. The method comprises the steps that a first node broadcasts content identifiers to nodes in the i-hop range of the first node, and therefore a second node in the i-hop range of the first node determines first routing information of a forwarded interest package, and a first directory node broadcasts content identifiers and a first directory node identifier to a second directory node and nodes within the coverage range of the first directory node. According to the method, forwarding nodes which are located in the same area with the position of target content are determined through the position of the target content, a forwarding node forwards the interest package in the direction of the position of the target content, and compared with the mode that the nodes inform all nodes in the network of cache content, consumption of wireless spectrum resources in the network is reduced, ...

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Номер записи: 19
25-06-2014 дата публикации

Interference deleting method for relay cooperative system

Номер: CN103888393A
Автор: ZHANG TIANKUI, ZHANG YINGHUI, GE ANMENG, NIU QIN, ZENG ZHIMIN
Принадлежит:

The invention discloses an interference deleting method for a relay cooperative system. The method comprises the steps that a terminal receives mixed information y[k] sent by relays R1 and R2, and the mixed information y[k] comprises two pieces of information which are completely identical and have the delay of delta; and the terminal carries out front-direction decoding and back-direction decoding on the mixed information y[k] respectively, according to the delay delta, front-direction interference deleting processing and back-direction interference deleting processing are carried out, and information yf[k] and yb[k] with front-direction and back-direction interference deleted is obtained. According to the method, good diversity gain can be obtained under the situation of large delay, signals do not need to be transmitted after segmentation, and meanwhile system error rate is lowered.

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Номер записи: 20
04-07-2023 дата публикации

Wireless access network load balancing method and device, and storage medium

Номер: CN116390159A
Автор: QIAO YANG, SHEN HONG, YE YUKAI, ZHANG TIANKUI
Принадлежит:

The invention provides a wireless access network load balancing method and device and a storage medium, and relates to the technical field of wireless communication. The wireless access network load balancing method comprises the following steps: determining an access base station covered by a network slice corresponding to each user of the network slice; determining slice configuration resources obtained by the network slice from each corresponding base station according to the optimal access base station; determining a user configuration resource obtained by each user of the network slice according to the first configuration resource; and performing iterative solution on the step of determining the access base station, the obtained slice configuration resource and the obtained user configuration resource to obtain the optimal load balancing performance.

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Номер записи: 21
24-12-2014 дата публикации

Content-oriented network system and layering method thereof

Номер: CN104244364A
Автор: ZHANG TIANKUI, XU XIAOGENG, ZHOU LE, LUO HUAN
Принадлежит:

The invention discloses a content-oriented network system and a layering method thereof. The method includes: a base station acquiring topological information of a cell multi-hop network at the beginning of each update circle; the base station dividing virtual communities by the aid of a preset rule according to the topological information of the cell multi-hop network and selecting one virtual community management node and a spare node of the virtual community management node; if a newly-added node enters the multi-hop relay cellular network, and the base station assisting the newly-added node to complete topological updating of the newly-added node and establishing a forwarding information base (FIB) of the newly-added node. The concept of a content-oriented network is introduced into the multi-hop relay cellular network, content is distributed and shared by the aid of decoupling content and position of the content-oriented network and the characteristics of ubiquity of the content, management ...

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Номер записи: 22
08-03-2017 дата публикации

Remove statistics of flow ware case

Номер: CN0206004680U
Автор: CHEN PU, SUN YONG, FENG WEIDONG, XU JIE, ZHAO TING, LI NI, ZHANG TIANKUI, LU YUN, CAO BO, ZENG YURONG, ZHOU ZHENG, RAO QIANG, ZHANG CHENG, JIAO YAOYI, ZHANG MINGZHAO, CHEN KAIMAO, YANG ZHENYU
Принадлежит: STATE GRID CORP CHINA, STATE GRID HUBEI ELECTRIC POWER COMPANY INFORMATION & TELECOMMUNICATION COMPANY, BEIJING MEASURE & CONTROL TECH CO LTD, UNIV BEIJING POSTS & TELECOMM, STATE GRID CORPORATION OF CHINA, BEIJING MEASURE & CONTROL TECHNOLOGY CO., LTD., BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS

The utility model provides a remove statistics of flow ware case, remove statistics of flow ware case, including the case body, case body the inside is equipped with power, transformer and statistics of flow ware in proper order, wherein, transformer and statistics of flow ware are connected to the power, the one side of case body be equipped with first chamber door and the one side that first chamber door is relative is equipped with the second chamber door, the statistics of flow ware includes microprocessor, signal monitor, package counter, power and display, microprocessor connects signal monitor, package counter, power and display respectively. This application can provide the statistics of flow ware that has removal form case, realizes the flow with the mobilizable statistics network node of hardware form.

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Номер записи: 23
07-01-2015 дата публикации

Content-oriented network content acquisition method

Номер: CN104270323A
Автор: ZHANG TIANKUI, ZHOU LE, XU XIAOGENG, LUO HUAN
Принадлежит:

The invention discloses a content-oriented network content acquisition method which includes the steps that a node sends a content request interest package, the node sending the content request interest package is received, and the type of the content request interest package is judged; if the content request interest package is a content request interest package in a community, a processing method for the content request interest package in the community is started, and if the content request interest package is a content request data package among communities, a processing method for the content request interest package among the communities is started. According to the content-oriented network content acquisition method, interest package forwarding is limited in the community and among the communities, the flooding range and the forwarding times of the interest package are reduced, the wireless frequency spectrum resource utilization efficiency is improved, the content is divided into ...

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Номер записи: 24
22-04-2015 дата публикации

Limiting feedback method and device for large-scale antenna system

Номер: CN104539335A
Автор: ZHANG TIANKUI, GE ANMENG, NIU QIN, HU ZHIRUI
Принадлежит:

The invention provides a limiting feedback method and device for a large-scale antenna system. The method comprises the steps that a receiving terminal feeds back low-dimensional channel status information obtained through a principal component analytical method to a transmitting terminal in each short cycle; the receiving terminal continues channel estimation, obtains a dimensionality reduction matrix through the principal component analytical method and feeds back the dimensionality reduction matrix to the transmitting terminal in each long cycle; the transmitting terminal receives the dimensionality reduction matrix fed back by the receiving terminal at the beginning of each long cycle, multiplies a transpose of the dimensionality reduction matrix and the low-dimensional channel information and restores high-dimensional status information; the transmitting terminal receives the low-dimensional channel status information fed back by the receiving terminal in each short cycle. By means ...

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Номер записи: 25
04-04-2023 дата публикации

Solar temperature control system for vehicle

Номер: CN115891575A
Автор: ZHANG TIANKUI, JIAN YUYANG
Принадлежит:

The invention provides a solar temperature control system for a vehicle. The solar temperature control system comprises a whole vehicle refrigerant circulation system and a whole vehicle battery. The foldable solar thin film reel is assembled at the position close to the whole vehicle glass, and when the solar thin film reel is unfolded, the solar thin film reel is laid on the inner side of the whole vehicle glass at the corresponding position and shields external light at the corresponding position; the whole vehicle electric energy distribution center is connected with the solar film reel and is used for processing the electric energy which is absorbed and converted when the solar film reel is unfolded according to the temperature of a passenger compartment in the vehicle; the semiconductor refrigeration module is connected with the whole vehicle electric energy distribution center through a wire harness and comprises a refrigeration plate which is driven by the whole vehicle electric ...

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Номер записи: 26
07-05-2014 дата публикации

Switching method under heterogeneous cellular network

Номер: CN103781133A
Автор: ZHANG TIANKUI, ZHANG XIAOLAN, FENG CHUNYAN, ZENG ZHIMIN
Принадлежит:

The invention discloses a switching method under a heterogeneous cellular network, which comprises the steps of: calculating a switching active threshold HAT by user equipment (UE) according to an effective switching threshold EHT and an active index AH which are transmitted by a macro base station, and determining a coverage area of the switching active area HAA of the macro base station according to the acquired HAT value; determining movement direction by the current UE according to reference signal receiving power RSRP values of the macro base station and a micro base station; if movement from the macro base station to the micro base station is determined, determining whether the UE enters the HAA area of the macro base station according to the reference signal receiving power RSRP value and HAT value of the macro base station, thereby determining whether switching from the macro base station to the micro base station is required; and if movement from the micro base station to the macro ...

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Номер записи: 27
07-07-2023 дата публикации

Surface fusion blanking method and device based on BIM model, equipment and medium

Номер: CN116401741A
Автор: PENG LIJUAN, HUANG LIANWEI, ZHANG TIANKUI, ZHAO ZHONGJI
Принадлежит:

The invention provides a surface fusion blanking method and device based on a BIM model, equipment and a medium. The method comprises the steps of obtaining a first component and a second component which have a geometrical relationship in the BIM model; extracting a first boundary representation body corresponding to the first component and a second boundary representation body corresponding to the second component; respectively updating the first boundary representation body and the second boundary representation body based on coplane overlapped edges of the two boundary representation bodies to obtain a first overlapped edge pair which is completely overlapped; and rendering and drawing the first overlapped edge pair based on the display attributes of the first component and the second component. According to the method, boundary representation bodies with blanking requirements in the rendering process are screened through coplane coincident edge pairs to obtain completely coincident ...

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Номер записи: 28
09-02-2011 дата публикации

Asymmetric seamless switching method for large and small base stations in broadband wireless multimedia system

Номер: CN0101969678A
Автор: CHUNYAN FENG, MIN WANG, ZHIMIN ZENG, TIANKUI ZHANG, FENG CHUNYAN, WANG MIN, ZENG ZHIMIN, ZHANG TIANKUI
Принадлежит:

The invention provides an asymmetric seamless switching method for large and small base stations and is applicable to the large and small base station mode of a broadband wireless multimedia system. Cells of a plurality of small cell base stations are simultaneously in the service coverage of a large broadcast base station; when the point-to-multipoint mode of large broadcast base station fails to assure the required service quality of a broadcast service, the large broadcast base station needs to be seamlessly switched to the small station of the cells so as to provide the broadcasting service in a point-to-point mode; once that the service quality of broadcasting service provided by the large base station for the user in the point-to-point mode restores to be normal is monitored, the small base station is switched to the large station immediately; and the continuity of service quality of broadcasting service can be guaranteed, and the use ratio of wireless resources can be improved. The ...

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Номер записи: 29
11-07-2023 дата публикации

Task unloading, resource allocation and trajectory planning method and system for cooperative computing of multiple unmanned aerial vehicles

Номер: CN116419325A
Автор: ZHANG TIANKUI, CHEN CHAOBIN, LIU YUANWEI, XU WENJUN
Принадлежит:

The invention discloses a task unloading, resource allocation and trajectory planning method and system for cooperative computing of multiple unmanned aerial vehicles, and the method specifically comprises the following sub-steps: initializing all state information, and determining a target function; obtaining a calculation task unloading result of cooperation of multiple unmanned aerial vehicles; updating a target function according to the calculation task unloading result, and obtaining an unmanned aerial vehicle calculation resource allocation scheme according to the updated target function; updating the updated target function again according to the unmanned aerial vehicle computing resource allocation scheme, and obtaining the horizontal trajectory of the unmanned aerial vehicle; judging whether the maximum number of iterations is reached or not; and if the maximum number of iterations is not reached, adding 1 to the number of iterations, and repeating the steps. According to the method ...

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Номер записи: 30
05-05-2023 дата публикации

Laser-based high-energy CT imaging device and method

Номер: CN116067996A
Автор: WU YUCHI, GU YUQIU, WANG SHAOYI, ZHANG TIANKUI, ZHU BIN, YANG YUE, YU MINGHAI, YAN YONGHONG, DONG KEGONG, TAN FANG, BI BI, HE WEIHUA, LI GANG, ZHANG XIAOHUI, ZHANG JIE, WEN JIAXING, ZHAO ZONGQING, ZHOU WEIMIN
Принадлежит:

The invention provides a laser-based high-energy CT imaging device and method, and the device comprises a laser transmitter, a laser transmission system, a gas target, a vacuum chamber, a front collimator, a sample stage, a rear collimator, an imaging recording system, a conversion target, a metal film tape system, an energy spectrum measurement system, a beam spot measurement system, and a positioning mark. The gas target obliquely sprays gas to the rotary target disc of the conversion target in an inclined manner; the conversion target is used for allowing a high-energy electron beam to pass through during imaging; the metal film tape system is used for blocking residual laser during debugging; the energy spectrum measurement system is used for acquiring the energy spectrum of the high-energy electron beam during debugging; the beam spot measurement system is used for acquiring the beam spot size of the high-energy electron beam during debugging; the positioning mark is fixed around the ...

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Номер записи: 31
27-10-2010 дата публикации

Method for reducing feedback quantity during feeding back sequence consisting of a plurality of code words

Номер: CN0101873160A
Автор: ZHIMIN ZENG, TIANKUI ZHANG, SONG ZHAO, ZENG ZHIMIN, ZHANG TIANKUI, ZHAO SONG
Принадлежит:

The feedback quantity during feeding back a code word sequence is reduced by constructing a set with all sequences possibly formed by a plurality of code words and performing feedback by using the sequence number of a to-be-fed code word sequence in the set during feeding back a sequence consisting of the plurality of code words.

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Номер записи: 32
20-07-2011 дата публикации

Pre-coding processing method, user equipment and base station

Номер: CN0102130748A
Автор: ZHANG TIANKUI, SHEN XIAOCHEN, FENG CHUNYAN, LI ZHONGFENG, TIANKUI ZHANG, XIAOCHEN SHEN, CHUNYAN FENG, ZHONGFENG LI
Принадлежит:

The embodiment of the invention provides a pre-coding processing method, user equipment and a base station. The method comprises the following steps of: acquiring pre-coding vectors corresponding to at least two regulation factors respectively according to regulation vectors and the pre-coding vectors used by transmitting the previous frame of data by a cooperative node; acquiring the regulation factor corresponding to the pre-coding vector capable of obtaining the maximum cooperative receiving signal to noise ratio; and transmitting an identifier of the regulation factor to the cooperative node, wherein the identifier of the regulation factor is used for the cooperative node to acquire the pre-coding vector. In the embodiment of the invention, the user equipment (UE) is only required to feed the identifier of the regulation factor back to the cooperative node to make the cooperative node to adaptively regulate and acquire the pre-coding vectors of a current frame by adopting the regulation ...

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Номер записи: 33
23-07-2014 дата публикации

Method for preparing nuclear radiation screening material

Номер: CN103937160A
Автор: HU HUASI, HU GUANG, ZHANG TIANKUI, ZHANG FENGNA, LIU WENHAO, JIA QINGGANG
Принадлежит:

The invention discloses a method for preparing a nuclear radiation screening material. Based on selected material samples, according to content of various components calculated in an optimizing design method, for the characteristic of the researched screening composite material, exact preparation processes including four stages of preparation of materials, curing pre-treatment, curing of the materials and demoulding are determined by preparing the composite materials for many times. The requirements on good screening effect, high thermo-mechanical performance and good anti-irradiation property of the screening material which can be used for screening neutron-gamma mixed fields with different energy and different fluxes can be met.

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Номер записи: 34
01-04-2009 дата публикации

Uplink (reverse link) power control method for radio communication system

Номер: CN0101399579A
Автор: YU QIU, CHUNYAN FENG, ZHIMIN ZENG, TIANKUI ZHANG, QIU YU, FENG CHUNYAN, ZENG ZHIMIN, ZHANG TIANKUI
Принадлежит:

The invention provides a power control method in an uplink (a reverse link) of a wireless communication system. The core of the method is as follows: a user (a mobile station ) dynamically carries out power control and adjusts transmission power by path loss (or large scale fading value comprising path loss, shadowing fading, serial gain, penetration loss)measured by a DwPTS and by the different value of path loss between the strongest interference zone and a service zone. The method provided by the invention dynamically adjusts power control parameters, carries out power control and adjusts emission power of the user (the mobile station) according to a position of the user, appropriately reduces emission power of marginal users, thus reducing interference generated by the marginal users (the mobile station), optimizes the resource efficiency of a system and improves the performance of the system under the premise of not losing fairness.

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Номер записи: 35
25-04-2023 дата публикации

Semantic communication method, electronic equipment and storage medium

Номер: CN116015537A
Автор: WANG FENGYU, WEI HAO, XU WENJUN, ZHANG TIANKUI, BIE ZHISONG, ZHANG PING
Принадлежит:

The invention provides a semantic communication method, electronic equipment and a storage medium, and aims to realize processing of real-time signals by controlling the extraction range of semantic features of transmission signals so as to realize real-time transmission of semantic communication.

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Номер записи: 36
01-04-2009 дата публикации

Staged wireless resource management method based on dynamic cell group in cellular system

Номер: CN0101400135A
Автор: ZHANG TIANKUI, ZENG ZHIMIN, FENG CHUNYAN, WANG KANG, TIANKUI ZHANG, ZHIMIN ZENG, CHUNYAN FENG, KANG WANG
Принадлежит:

The invention discloses a classification wireless resource management method based on a dynamic district group, suitable for cellular communication system. Adjacent districts constitute a district group according to interference relationships between adjacent districts, a plurality of districts belonging to the same district group are joined up to perform wireless resource management, reducing interference between the districts and increasing performance of the edge users, ensuring requirement of service quality. Structure of the district group is updated periodically according to the interference change between the districts. The wireless resource management method in the invention is a classification method. The district group may unifiedly manage the resource distribution of a plurality of districts inwards, also manage the resource distribution of the edge of the district. The districts in the district group are joined up in a centralized mode, also in a distributing mode. The wireless ...

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Номер записи: 37
30-09-2015 дата публикации

Self-adaptive adjusting method for duty ratio of wireless sensing network

Номер: CN104955107A
Автор: ZHANG TIANKUI, WANG SONG, YANG DINGCHENG, LUO HUAN, XIAO LIN
Принадлежит:

The invention provides a self-adaptive adjusting method for duty ratio of a wireless sensing network. On one hand, aiming at the problem that quick and optimal matching between the duty ratio and flow cannot be realized through linear adjusting of the duty ratio in a self-adaptive duty ratio adjusting method, a prediction method based on reinforced learning is adopted to directly predict optimal duty ratio matched with node flow; on the other hand, in order to reduce communication between cluster head nodes and common nodes as much as possible, a reinforced learning method is used for the common nodes, and optimal duty ratio of the next period is predicted by the common nodes directly according to own flow conditions.

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Номер записи: 38
29-10-2014 дата публикации

Bit allocation method, equipment and system thereof

Номер: CN104125044A
Автор: ZHANG TIANKUI, HU ZHIRUI, LIN QIUHUA, GAO QIUBIN, SUN SHAOHUI
Принадлежит:

The embodiment of the invention provides a bit allocation method, equipment and a system thereof. According to the invention, the method, the equipment and the system are used for carrying out bit allocation on feedback information of UE and raise feedback efficiency. The method contains the following steps: the UE determines bit number which is used for feedback information quantization and is allocated to each base station BS in a collaborative area; and the UE sends the bit number for feedback information quantization to a serve BS.

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Номер записи: 39
14-01-2015 дата публикации

Heterogeneous cellular network interference management method and device

Номер: CN104283828A
Автор: ZHANG TIANKUI, NIU QIN, HU ZHIRUI
Принадлежит:

The invention discloses a heterogeneous cellular network interference management method and device. The method comprises the steps that macrocell users and small cell users estimate channel state information and feed the channel state information back to a macro base station; the macro base station calculates a pre-coded matrix of the macro base station and eliminates inter-user interference of the macrocell users in the same cell; the macro base station calculates an interference suppression matrix of the macrocell users, eliminates the inter-flow interference of the macrocell users and notifies each macrocell user; the macro base station calculates an interference suppression matrix of the small cell users, eliminates the interference in the cross-layer inter-cell interference direction from the macro base station, and notifies each small cell user; the macro base station calculates a pre-coded matrix of each small cell, aligns same-layer inter-cell interference between the small cells ...

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Номер записи: 40
14-01-2015 дата публикации

Method and device for user access to isomerous cellular network

Номер: CN104284399A
Автор: ZHANG TIANKUI, NIU QIN, HU ZHIRUI
Принадлежит:

The invention discloses a method and device for user access to an isomerous cellular network. The method comprises the steps of initializing the user access state of the isomerous cellular network, calculating the weighing frequency spectrum resource consumption for a new service requesting user to have access to different base stations when the new service requesting user requests to have access to the base stations, and making the new service requesting user have access to the base station with the smallest weighing frequency spectrum resource consumption value. By the adoption of the method and device for user access to the isomerous cellular network, the new service requesting user can have access to the base stations selectively based on the condition of remaining frequency spectrum resources according to the dynamic change of available quantity of clean renewable energy.

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Номер записи: 41
26-01-2011 дата публикации

Method and device for laying out distributive sites

Номер: CN0101959204A
Автор: TIANKUI ZHANG, CONGQING ZHANG, CUTHBERT LOWRY, ZHIMIN ZENG, SONG ZHAO, ZHANG TIANKUI, ZHANG CONGQING, LOWRY.CUTHBERT, ZENG ZHIMIN, ZHAO SONG
Принадлежит:

The invention provides a method and a device for laying out distributive sites. The method comprises the following steps of: acquiring first position information of users in a cell, wherein the first position information represents the position information of the users in a uniform distributive state; acquiring a distance function reflecting the users to distributive sites according to the first position information; and optimizing the distance function by taking the cell radius and the coverage range of the distributive sites as constraint conditions to acquire first layout positions of the distributive sites. The technical scheme of the invention does not depend on the antenna efficiency, thereby overcoming the dependence on the definition of the antenna efficiency. In the technical scheme, the distributive sites are laid out on the basis of the user positions and the cell information, which can guarantee that the distances between the users and the accessed distributive sites are the ...

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Номер записи: 42
25-06-2014 дата публикации

Management and control node selection method in content center wireless network

Номер: CN103888982A
Автор: ZHANG TIANKUI, XU XIAOGENG, ZHOU LE, FENG CHUNYAN
Принадлежит:

The invention discloses a management and control node selection method in a content center wireless network. The method comprises the steps that current network topology is abstracted into a weighted undirected graph G, and the topology potential of each node in the graph G is calculated; any initial node ni is selected, and searching is started based on the topology potential until the node with the maximum local topology potential is found out; then searching is started from the node with the maximum local topology potential in the descent direction of the topology potential until the tip node is reached; the nodes related in the searching process in the descent direction of the topology potential are divided into virtual network cells; after all the nodes in the graph G are divided, the nodes with the maximum local topology potential in all the virtual network cells are used as the management and control nodes in the virtual network cells. The management and control node selection method ...

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Номер записи: 43
04-03-2015 дата публикации

Content-oriented network caching method

Номер: CN104394545A
Автор: ZHANG TIANKUI, ZHOU LE, XU XIAOGENG, LUO HUAN
Принадлежит:

The invention discloses a content-oriented network caching method. The method comprises the following steps that: a base station defines virtual communities and selects virtual community management nodes in each update period; the base station selects an independent set by using a network topology formed by the virtual community management nodes; the base station randomly selects a virtual community corresponding to the independent set for performing content caching; the base station informs the selected virtual community to perform content caching, and transmits content to a corresponding virtual community management node; the virtual community management node receiving a content caching instruction selects a node for caching the content by using a generalized dominating set algorithm; the virtual community management node informs the selected node to cache the content, and transmits the content to the node; and the selected node caches the content.

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Номер записи: 44
08-04-2009 дата публикации

Semi-static interference coordination method based on void cell in OFDMA cellular system

Номер: CN0101404800A
Автор: ZHENG JIEYING, ZHANG TIANKUI, ZENG ZHIMIN, FENG CHUNYAN, LIU YINLONG, JIEYING ZHENG, TIANKUI ZHANG, ZHIMIN ZENG, CHUNYAN FENG, YINLONG LIU
Принадлежит:

The invention provides a semi-static interference coordination method based on a virtual subdistrict and is suitable for a broadband honeycomb mobile communication system based on OFDMA. The method uses strong mutual interference characteristics between sectors in the virtual subdistrict, takes the virtual district as a basic interference coordination unit, and uses a soft frequency reuse method of an edge frequency bank and a center frequency band being orthometric between the sectors in the virtual subdistrict; the reuse factor frf=1 of a component channel of the center district of each sector and the reuse factor frf of the component channel of the edge district are determined according to the average verge of each sector in the virtual subdistrict and the duty factor of the center district; frf is more than one; the component channel quantity allocation of the centre and the edge of each sector in the virtual subdistrict is determined according to the duty factor of the center ...

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Номер записи: 45
18-08-2023 дата публикации

Edge federal learning training method and system for heterogeneous data

Номер: CN116611535A
Автор: ZHANG TIANKUI, LIU TIANZE, YANG DINGCHENG, LIU YUANWEI, YANG YANG
Принадлежит:

The invention discloses an edge federated learning training method and system for heterogeneous data. The edge federated learning training method for the heterogeneous data comprises the following steps of S1, performing initialization; s2, in response to completion of initialization, each participant performs local model training; s3, performing local model training in response to each participant, performing personalized global model aggregation by the edge server, and sending the aggregated personalized global model parameters to each participant; s4, each participant performs adaptive local fine tuning according to the received personalized global model parameters; s5, judging whether the convergence precision or the maximum number of iterations is reached or not; and if the convergence precision or the maximum number of iterations is reached, ending the process, otherwise, re-executing the steps S2-S4. According to the edge federated learning system for data isomerism, the thought ...

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Номер записи: 46