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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.
04-01-2012 дата публикации

Communication protocol conversion device and method based on embedded multiple MCU

Номер: CN0101420435B
Автор: LI HUI, ZHENG LUJUN, XIA FEI, YANG LI, ZHANG HAO, MAO DAJUN, PENG DAOGANG, XU LONGHU, HUI LI, LUJUN ZHENG, FEI XIA, LI YANG, HAO ZHANG, DAJUN MAO, DAOGANG PENG, LONGHU XU
Принадлежит:

The present invention relates to a communication protocol converter based on embedded type multi-MCU and a method thereof, wherein the communication protocol converter adopts an embedded type multi-MCU and a real-time multiple task operating system Uc/OS-II. The communication protocol converter realizes the communication to the data collecting I/O module of a device layer through protocols of Nodbus/RTU or ASCII, etc. The measuring data of industrial field is obtained, and then the data is transmitted to remote monitoring systems of upper DAS, DCS, etc. through the protocols of Modbus/TCP, TCP/IP, etc. with an Ethernet communication interface. The functions of relaying and protocol converting in industrial communication network are realized. The serial interface device of the device layercan be easily connected to a monitoring layer network. The embedded type multi-MCU and high-speed RAM data sharing technology are adopted for simplifying circuit design, increasing the reliability and real-time ...

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Номер записи: 1
07-07-2010 дата публикации

High speed communicating method based on mu C/OS-II

Номер: CN0101770392A
Автор: ZHAO HAIYAN, ZHENG LUJUN, HAIYAN ZHAO, LUJUN ZHENG
Принадлежит:

The invention relates to a high speed communicating method based on mu C/OS-II. The core of the mu C/OS-II manages two tasks, namely a communication task and an idle task. The method comprises a communication task execution step, a communication interrupt service step and an external zero interrupt service step, wherein the communication interrupt service step is triggered by external hardware. The invention solves the problems that frame data in communication is incomplete and the communication reliability does not meet the requirement, thereby quite easily realizing the high speed communicating method based on the mu C/OS-II on an 8051 core.

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Номер записи: 2
13-04-2011 дата публикации

Dual-constant current source temperature measurement system for thermal resistor

Номер: CN0102012279A
Автор: Mao Dajun, Zheng Lujun
Принадлежит:

The invention discloses a dual-constant current source temperature measurement system for a thermal resistor, which comprises a first electronic switch, a second electric switch, a thermal resistor, a resistor, a computing amplifier, a first constant current source and a second constant current source, wherein the input end of the first electronic switch is electrically connected with the first constant current source, and the output end of the first electronic switch is connected with the input end of the thermal resistor; the output end of the thermal resistor returns to the reference ground through the resistor; the input end of the second electronic switch is electrically connected with the second constant current source, and the output end of the second electronic switch is connected with the output end of the thermal resistor; and one input end of the computing amplifier is connected with the first constant current source, and the other input end of the computing amplifier is connected ...

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Номер записи: 3
10-09-2008 дата публикации

Thermal resistor three-wire system, four wire system dual temperature measuring process

Номер: CN0101261163A
Автор: MAO DAJUN, ZHENG LUJUN, DAJUN MAO, LUJUN ZHENG
Принадлежит:

The invention relates to a method for thermal resistance three-wire system and four-wire system multiplex temperature measurement, which can be used for the multiplex measurement of thermal resistance three-wire system and four-wire system; furthermore, the precision of four-wire system can be achieved by the three-wire system measurement; a plurality of cables can be saved in industrial sites, thus achieving the aim of saving cost.

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Номер записи: 4
25-06-2008 дата публикации

Method for measuring frequency of single-chip

Номер: CN0101206235A
Автор: ZHENG LUJUN, LUJUN ZHENG
Принадлежит:

The invention discloses a method for measuring the frequency of a singlechip. The method can realize precise measurement of frequency and includes the two steps of initial setting and measurement, wherein, a time threshold T is set at first; the input realtime time t of pulse and the number N of input pulses are recorded within time m x T; finally, practical time threshold T is obtained through subtracting the input realtime time of a first pulse from that of the last pulse. Because the measurement error of the method comes from the error of clock frequency, the method has high measurement precision; moreover, the method is also suitable for low-frequency and high-frequency measurement.

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Номер записи: 5
22-06-2011 дата публикации

Thermal resistor three-wire system, four wire system dual temperature measuring circuit and process

Номер: CN0101261163B
Автор: ZHENG LUJUN, MAO DAJUN, LUJUN ZHENG, DAJUN MAO
Принадлежит:

The invention relates to a method for thermal resistance three-wire system and four-wire system multiplex temperature measurement, which can be used for the multiplex measurement of thermal resistance three-wire system and four-wire system; furthermore, the precision of four-wire system can be achieved by the three-wire system measurement; a plurality of cables can be saved in industrial sites, thus achieving the aim of saving cost.

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Номер записи: 6
23-09-2009 дата публикации

Production method of dense soda ash in high altitude localities

Номер: CN0101538055A
Автор: GUAN GUOXING, CUI SHENGYANG, LIU ZHAOLIN, WANG PEILONG, WANG XIANGZHAO, HE CHENGJUN, DONG LIGANG, CHEN CHUNGANG, YE FAMING, XIE LIANQING, ZHENG LUJUN, GAO WA, LIU CHUNHONG, GUOXING GUAN, SHENGYANG CUI, ZHAOLIN LIU, PEILONG WANG, XIANGZHAO WANG, CHENGJUN HE, LIGANG DONG, CHUNGANG CHEN, FAMING YE, LIANQING XIE, LUJUN ZHENG, WA GAO, CHUNHONG LIU
Принадлежит:

The invention belongs to the technical field of soda ash production, and particularly relates to a production method of dense soda ash in high altitude localities. The method comprises the process flows of hydration reaction, soda ash calcination, soda ash cooling and sieving, and inspection packing for obtaining the products; the method adopts the process conditions that the mass percent ratio of water to anhydrous sodium carbonate during the hydration reaction is 31 to 37:100; the temperature of the hydrate water is 45 to 60 DEG C; the temperature of the outlet air of a hydrator is 85 to 89 DEG C; during the soda ash calcination, self return soda ash calciner equipment is adopted for the soda ash calcination; and during the soda ash cooling and sieving, boiling soda ash cooling machine equipment is adopted for the soda ash cooling. The method is totally suitable for the production application of the soda ash calcination in high altitude localities, the production conditions of thermonatrite ...

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Номер записи: 7
29-04-2009 дата публикации

Communication protocol conversion device and method based on embedded multiple MCU

Номер: CN0101420435A
Автор: PENG DAOGANG, ZHANG HAO, MAO DAJUN, ZHENG LUJUN, LI HUI, XIA FEI, XU LONGHU, YANG LI, DAOGANG PENG, HAO ZHANG, DAJUN MAO, LUJUN ZHENG, HUI LI, FEI XIA, LONGHU XU, LI YANG
Принадлежит:

The present invention relates to a communication protocol converter based on embedded type multi-MCU and a method thereof, wherein the communication protocol converter adopts an embedded type multi-MCU and a real-time multiple task operating system Uc/OS-II. The communication protocol converter realizes the communication to the data collecting I/O module of a device layer through protocols of Nodbus/RTU or ASCII, etc. The measuring data of industrial field is obtained, and then the data is transmitted to remote monitoring systems of upper DAS, DCS, etc. through the protocols of Modbus/TCP, TCP/IP, etc. with an Ethernet communication interface. The functions of relaying and protocol converting in industrial communication network are realized. The serial interface device of the device layer can be easily connected to a monitoring layer network. The embedded type multi-MCU and high-speed RAM data sharing technology are adopted for simplifying circuit design, increasing the reliability and ...

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Номер записи: 8
18-02-2009 дата публикации

Remote I/O data acquisition system and method based on embedded type platform

Номер: CN0101369142A
Автор: ZHANG HAO, PENG DAOGANG, MAO DAJUN, ZHENG LUJUN, LI HUI, XIA FEI, XU LONGHU, HAO ZHANG, DAOGANG PENG, DAJUN MAO, LUJUN ZHENG, HUI LI, FEI XIA, LONGHU XU
Принадлежит:

The invention relates to a remote I/O data acquisition system based on an embedded platform as well as a method thereof, adopting a 32-bit embedded ARM microprocessor and a mu-C/OS-II real-time operating system kernel, and disclosing the remote I/O data acquisition system. The system and the method can be widely applied to industries such as power, petroleum, chemical, metallurgy, steel and traffic, and are mainly used for the on-site centralized acquisition and digital conversion of various analog signals such as voltage, current, hot resistance and thermocouple in production processes, the converted data can be directly used for monitoring on-site equipment through a liquid crystal display (LCD), and can also remotely transmit the acquired data to upper systems such as DAS and DCS through an RS485 or an Ethernet communication mode, and the data can be used for monitoring equipment parameters and as a basis for equipment control after being processed uniformly by the upper systems. The ...

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Номер записи: 9
25-07-2012 дата публикации

High speed communicating method based on mu C/OS-II

Номер: CN0101770392B
Автор: HAIYAN ZHAO, LUJUN ZHENG, ZHAO HAIYAN, ZHENG LUJUN
Принадлежит:

The invention relates to a high speed communicating method based on mu C/OS-II. The core of the mu C/OS-II manages two tasks, namely a communication task and an idle task. The method comprises a communication task execution step, a communication interrupt service step and an external zero interrupt service step, wherein the communication interrupt service step is triggered by external hardware. The invention solves the problems that frame data in communication is incomplete and the communication reliability does not meet the requirement, thereby quite easily realizing the high speed communicating method based on the mu C/OS-II on an 8051 core.

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Номер записи: 10
30-12-2009 дата публикации

Method for measuring frequency of single-chip

Номер: CN0100575965C
Автор: LUJUN ZHENG, ZHENG LUJUN
Принадлежит:

The invention discloses a method for measuring the frequency of a singlechip. The method can realize precise measurement of frequency and includes the two steps of initial setting and measurement, wherein, a time threshold T is set at first; the input realtime time t of pulse and the number N of input pulses are recorded within time m x T; finally, practical time threshold T is obtained through subtracting the input realtime time of a first pulse from that of the last pulse. Because the measurement error of the method comes from the error of clock frequency, the method has high measurement precision; moreover, the method is also suitable for low-frequency and high-frequency measurement.

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Номер записи: 11