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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11. Отображено 11.
30-12-2015 дата публикации

Message read -write device based on RFID carries out optic fibre discernment

Номер: CN0204926134U
Автор: SA XINGJIE, LI YOU, XIONG CHENG, YANG YAO, LI BAISEN, LIU XIAOBO, ZHANG XIANGZHONG
Принадлежит:

The utility model provides a message read -write device based on RFID carries out optic fibre discernment, melting including optic fibre and joining in marriage the dish and melt the fiber connector who joins in marriage the port on the dish and dock mutually with optic fibre, optic fibre melts every port department of joining in marriage on the dish and all adds and be equipped with RFID identification module, and every RFID identification module divides equally do not be continuous with control module, all is provided with a RFID label that has only yard on every fiber connector. Join in marriage the dish to go up the port of seeking appointed customer from a large amount of ports very troublesome in order to solve to melt at current optic fibre, and make mistakes easily, inconvenient management and maintain the scheduling problem. The utility model belongs to the optic fibre field.

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Номер записи: 1
21-10-2015 дата публикации

Short distance stereoplasm rail intrusion detection device

Номер: CN0204719894U
Автор: XIONG CHENG, LUO JINGWU, ZHANG MENG, LU BIAO, REN YANGYANG, WANG LING, ZHENG YUANWEI, ZHANG HAN, LONG NUOYA, LI YOU, SA XINGJIE, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WU HUIJUAN, RAO YUNJIANG
Принадлежит:

The utility model discloses a short distance stereoplasm rail intrusion detection device, including OTDR system, sensitive optical cable and blade gill net, sensitive optical cable binds in the blade thorn on the net, a sensitive optical cable termination is in OTDR (Optical time domain reflectometer, optical time domain reflectometer ) system. The beneficial effect of the utility model: 1, because sensitive optical cable binds on the heliciform surface of blade gill net, so the optic fibre rail vibration signal who installs on the stereoplasm enclosure is detected easily. 2, because sensitive optical cable comes and goes the heliciform surface of binding at the blade gill net according to certain interval, has increased the length of optical cable disturbance for the improvement of the sensitivity of whole device.

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Номер записи: 2
27-05-2015 дата публикации

Network analog simulation system for large-scale integrated data network based on NS-3

Номер: CN104660463A
Автор: LU BIAO, ZHANG QIAN, CHEN LIMIN, SHAO DAXUE, LONG NUOYA, REN YANGYANG, YU FUCAI, ZHANG XIAO, LI YOU, XIONG CHENG, YANG YAO, ZHANG MENG, SA XINGJIE, ZHANG HAN, ZHENG YUANWEI, LIU YI
Принадлежит:

The invention discloses a network analog simulation system for a large-scale integrated data network based on NS-3. The network analog simulation system is characterized by comprising three subsystems: a visualization system (1), an analog simulation system (2) and a network operation analysis system (3). A framework used by the network analog simulation system compensates and perfects the defect of an existing NS-3 function module; 22 function modules systematically built based on an NS-3 platform and a parallel module provide an omnibearing function support for the simulation of the integrated data network. According to the network analog simulation system, technologies of route analysis, flow analysis, data network element analysis and the like can be integrated based on overall operating status data of the integrated data network; through the realization of the framework, a simulation platform for rapid fault location and diagnosis and network performance analysis can be provided at ...

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Номер записи: 3
05-08-2009 дата публикации

Multiplex audio/video compression transmission server

Номер: CN0101500169A
Автор: JINSHENG XIAO, QIUSHI LIN, XINGJIE SA, BENSHUN YI, XIAO JINSHENG, LIN QIUSHI, SA XINGJIE, YI BENSHUN
Принадлежит:

The invention relates to a compressed transmission server of multipath audio and video, comprising an audio encoder/decoder, a video encoder/decoder, a digital signal processor (DSP), an ARM micro-processor, an Ethernet port, a serial port, a hard disk interface, a power circuit, an external microphone, a camera and a tripod head. Independent DSP chip and ARM chip are adopted to assemble a DSP+ ARM framework on a board; the tripod head is controlled by the ARM micro-processor through the serial port so as to realize the rotation and zoom of the camera, the audio and video analog signals are collected on-site in real time and are sent to the digital signal processor after an A/D conversion carried out by the audio and video decoder, and then a compressed encoding is carried out; the video signal is compressed by H.264 arithmetic, the audio signal is compressed by G.264 arithmetic, the code stream data is read by a HPI interface of the digital signal processor, and local hard disk storage ...

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Номер записи: 4
17-06-2015 дата публикации

Distributed network traffic abnormity detection method based on multi-variable sequential analysis

Номер: CN104717106A
Автор: CHEN LIMIN, HU HANGYU, MA TAO, REN YANGYANG, LU BIAO, WANG WEI, ZHANG XIAO, YU FUCAI, LI YOU, XIONG CHENG, LIU YI, YANG YAO, LONG NUOYA, ZHANG MENG, SA XINGJIE, ZHANG HAN, ZHENG YUANWEI
Принадлежит:

The invention discloses a distributed network traffic abnormity detection method based on multi-variable sequential analysis. The distributed network traffic abnormity detection method is characterized in that the network traffic information of links in a distributed network is obtained, and the data packet size value of the network traffic information is extracted; a network traffic information sequence is built; a multi-variable sequential probability ratio detection method is adopted; likelihood ratio sudden change value sequences are built; distributed network abnormity is detected by detecting the correlation of the likelihood ratio sudden change value sequences of two or more network links in the distributed network. The method has the advantages of being high in detection speed, high in instantaneity and the like; the DDOS attack can be detected, and a good detection effect can be obtained for the DDOS attack.

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Номер записи: 5
21-10-2015 дата публикации

Distributed optical fiber temperature alarm

Номер: CN0204718707U
Автор: ZHANG MENG, LI YI, ZHENG YUANWEI, LU BIAO, LI YOU, SA XINGJIE, XIONG CHENG, REN YANGYANG, ZHANG HAN, LONG NUOYA, WANG LING, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WANG ZINAN, RAO YUNJIANG
Принадлежит:

The utility model discloses a distributed optical fiber temperature alarm, including first light source, secondary light source, polarization beam splitter, circulator, heat sensitive optical fiber, wavelength division multiplexer, photoelectric detector, signal acquisition module, communication module and data processing module, change based on the radial refringence of optic fibre. First light source and secondary light source signals light utilize the rayleigh scattering who produces among the heat sensitive optical fiber, through the specific pilot light of wavelength division multiplexer separation, because the radial refringence of optic fibre obtains sensing district temperature information, data processing alarm module handles assay to the signal, when dividing the temperature of appearing to be higher than default temperature, realizes alarming function. The utility model discloses a long distance distributing type temperature monitoring can be realized to the high wide range of ...

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Номер записи: 6
27-05-2015 дата публикации

Network anomaly detection method based on non-extensive entropy

Номер: CN104660464A
Автор: REN YANGYANG, ZHANG HUANNA, ZHOU LINGHUI, WU ZHONG, CHEN LIMIN, LU BIAO, WANG WEI, XIONG CHENG, LI YOU, LONG NUOYA, HU HANGYU, YU FUCAI, ZHANG XIAO, YANG YAO, ZHANG MENG, SA XINGJIE, ZHANG HAN, ZHENG YUANWEI, LIU YI
Принадлежит:

The invention discloses a network anomaly detection method based on non-extensive entropy. The method comprises the following steps: through storing 9 attribute network data information, performing non-extensive entropy calculation and normalization processing on four attributes, namely a source IP address, a destination IP address, a source port number and a destination port number as well as the number of bytes of a data packet to obtain a non-extensive entropy value; then building a non-extensive entropy value map; performing non-extensive entropy symbolic processing; matching through a non-extensive entropy mode; outputting anomaly detection results. According to the network anomaly detection method based on the non-extensive entropy, disclosed by the invention, through the introduction of the non-extensive entropy, the change of network flow can be directly expressed, the moment at which a suspected anomaly is generated and the degree of the generated suspected anomaly can be obviously ...

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Номер записи: 7
21-10-2015 дата публикации

High sensitivity optic fibre temperature measurement system

Номер: CN0204718706U
Автор: ZHENG YUANWEI, FAN MENGQIU, CHEN LIMIN, LU BIAO, YANG YAO, LI YOU, XIONG CHENG, REN YANGYANG, ZHANG MENG, ZHANG HAN, LONG NUOYA, SA XINGJIE, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WANG ZINAN, RAO YUNJIANG
Принадлежит:

The utility model discloses a high sensitivity optic fibre temperature measurement system, including multi -wavelength brillouin raman fiber laser and detection demodulation processing module, multi -wavelength brillouin raman fiber laser includes brillouin's pumping laser source, optical circulator, first coupler, wavelength division multiplexer, chromatic dispersion compensated fiber, single mode fiber and raman pumping laser source, survey demodulation processing module optical isolator, optical filter, adjustable light source, second coupler, photoelectric detector and signal processing unit. Produce cascaded brillouin's multi -wavelength laser signal at random through multi -wavelength brillouin raman fiber laser, carry out the beat frequency demodulation to specific high -order stokes light again and survey, it is more sensitive to the frequency displacement of optic fibre brillouin based on high -order stokes light to and can select same order stokes is smoothless, realize the wide ...

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Номер записи: 8
21-10-2015 дата публикации

Relevant OTDR device

Номер: CN0204718622U
Автор: SA XINGJIE, WANG SONG, WANG WEI, FANG JIYU, ZHENG YUANWEI, LI YOU, LU BIAO, XIONG CHENG, LONG NUOYA, REN YANGYANG, ZHANG MENG, ZHANG HAN, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WANG ZINAN, RAO YUNJIANG
Принадлежит:

The utility model discloses a relevant OTDR device, including computer, frequency synthesizer, mach - ceng deer modulator, laser instrument, wave form take place card, light driver, acoustic optic modem, EDFA, circulator, sensing fiber, 1: 99 the beam splitter, 50: 50 close and restraint ware, photoelectric detector, DWDM and capture card, after the computer sends the corresponding order of frequency f to frequency synthesizer through the serial ports at every turn, mach - ceng deer modulator all to the frequency for f0's narrow linewidth laser carries on moving down frequently on corresponding, produce the laser that the frequency be f0+f and f0 -f, the laser of two kinds of frequencies produces receive external corresponding frequency of modulating back to rayleigh light when propagating in optic fibre, pass through DWDM at last after, the frequency is f0+f and f0 -f's rayleigh light and will be isolated. The utility model discloses a OTDR device is when the same a plurality of frequencies ...

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Номер записи: 9
23-09-2015 дата публикации

Lift distribution formula light amplification gain flatness system

Номер: CN0204667024U
Автор: ZHANG HAN, FAN MENGQIU, WU ZHONG, ZHANG XIAO, ZHANG MENG, ZHENG YUANWEI, LONG NUOYA, LI YOU, SA XINGJIE, XIONG CHENG, REN YANGYANG, LU BIAO, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WANG ZINAN, RAO YUNJIANG
Принадлежит:

The utility model discloses a lift distribution formula light amplification gain flatness system, through setting up single mode fiber adjustment FBG position to the power distribution of change raman pumping light in optic fibre will swash power towards the optic fibre middle part propelling movement that shoots out, and the sharp first -order of penetrating of messenger laser power at random focuses on the 2nd single mode fiber, make the 1550nm signal obtain more gains in the middle part of optic fibre, can compensate partial following apart from the signal loss that increases like this, realize more smooth gain distribution, provide distributed rayleigh feedback through the 2nd single mode fiber, constitute the first -order optical -fiber laser structure at random of partly beginning to speak with FBG, reduced and swashed the lase threshold value at random, with the first -order at random laser power distribute and to push the optic fibre distal end to, obtain the more smooth gain distribution ...

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Номер записи: 10
09-09-2015 дата публикации

Distributed optical fiber temperature alarm

Номер: CN104897301A
Автор: ZHANG MENG, LI YI, ZHENG YUANWEI, LU BIAO, LI YOU, SA XINGJIE, XIONG CHENG, REN YANGYANG, ZHANG HAN, LONG NUOYA, WANG LING, LI BAISEN, LIU XIAOBO, YANG JIXIANG, LI HAO, LYU JIAN, ZHANG XIANGZHONG, WANG ZINAN, RAO YUNJIANG
Принадлежит:

The invention discloses a distributed optical fiber temperature alarm which comprises a first light source, a second light source, a polarizing beam splitter, a circulator, a temperature sensing optical fiber, a wavelength division multiplexer, a photoelectric detector, a signal acquisition module, a communication module and a data processing and alarm module. Based on radial refractive index difference change of the optical fiber, the first light source and the second light source transmit signal light. By means of Rayleigh scattering which is generated in the temperature sensing optical fiber, the specific signal light is separated through the wavelength division multiplexer. Sensing area temperature information is acquired based on the radial refractive index difference of the optical fiber. The data processing and alarm module processes and analyzes the signal. When an analyzed temperature is higher than a preset temperature, the data processing and alarm module performs an alarming ...

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Номер записи: 11