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Load technology in antenna miniaturization design research
Thursday, December 11th, 2008 at 05:56 | No commentsCategories: Communication NetworksShort Content: 1 introduction Along with the modern military communications system in technical and so on frequency-hopping, wide frequency applications, the antenna takes communication facility's front end part, is playing the very important role to the correspondence quality. However the traditional antenna form and the function cannot follow the communications system miniaturization to a certain extent the development demand, seeks antenna's isotropic, the miniaturization, the wide band, to use in common turns into for the antenna research in an important topic. ... -
One kind based on TMS320C55x DSP UART correspondence design
Tuesday, December 9th, 2008 at 13:56 | No commentsCategories: Communication NetworksShort Content: Abstract: The full-duplex asynchronous serial communication usually realizes the way on TMS320C55xDSP is adds the external connection chip using the DSP McBSP connection to realize, this design method increased has realized the UART hardware cost and the circuit design order of complexity. Proposed one kind directly realizes the UART method using the DSP MCBSP connection and the DMA channel, gave has used the C language and the CSL programming method. Realizes the method with the tradition to compare, has realizes ... -
Based on monolithic integrated circuit’s program controlled switch many machine communication application
Monday, December 8th, 2008 at 09:02 | No commentsCategories: Communication NetworksShort Content: Abstract: This article introduced that monolithic integrated circuit's in program controlled switch application, uses five ATMEL Corporation's AT89C52 and AT89C51 takes the master-control unit and from the controller, many machine communications, the hardware architecture is clear, modularized program structure. Key word: AT series monolithic integrated circuit application, many machine correspondences, program controlled switch 0 introductions The domestic monolithic integrated circuit many machine correspondence direction technology development application had the quite long time, in intellectualized aspect and so ... -
Based on immunity invasion examination model and communication application research
Monday, December 8th, 2008 at 04:36 | No commentsCategories: Communication NetworksShort Content: Abstract: This article proposes one based on artificial immunization mechanism invasion examination model (IDS). This model may use in the computer network and the wireless communication network safety system. Simultaneously the article proposed one kind of recent data access and the analysis method, how and did describe specifically have withdrawn the humanity immune system's characteristic to apply in the invasion examination system's software package. This research results' remarkable merit was the enormous reduced invasion examination journal file capacity, thus enhanced ... -
Under Modbus agreement monolithic integrated circuit and eView touchscreen means of communication
Sunday, December 7th, 2008 at 08:35 | No commentsCategories: Communication NetworksShort Content: Because the abstract Modbus agreement it has openness, the transparency, the cost lowly, easy to develop and so on characteristics, has become now the industrial field communication protocol first choice. This article introduced one kind based on Modbus the communication protocol eView touchscreen and the commonly used 51 monolithic integrated circuit's means of communication. This method realizes the Modbus correspondence through the C51 programming, has the versatility on 51 series monolithic integrated circuits, has certainly certainly profits from the function.Key ... -
Realizes - 51rd based on the AVR ATmega128 industry gateway the Chinese electronic net
Monday, November 24th, 2008 at 17:39 | No commentsCategories: SCMShort Content: Abstract: Introduces one kind of bridge joint different field bus network the solution. This plan uses high performance AVR ATmega128 is its control core. AVR ATmega128 uses the ModBus/RTU agreement and the computer correspondence, controls the equipment correspondence through the multi-processor correspondence pattern with other minutes. This plan passes through moves in reality, proved that its design is feasible. Key word: AVR ATmega128, Modbus/RTU, AVR multi-processor correspondence pattern, CRC16 1 introduction Now, the electronic technology development is ... -
One kind of new MB-OFDM-UWB technical analysis and application
Friday, November 21st, 2008 at 08:19 | No commentsCategories: Communication NetworksShort Content: 1 introduction The ultra-wide band (UWB) communication has the high speed, the high performance, the low power loss, the low cost, the anti-multi-diameters to decline, the easy digitization and so on many merits. In the Internet, multimedia and wireless communication technology fusion today, it is realizes in the small scope the seamless cover wireless multimedia transmission demand popular technological means that regards as the new generation wireless territory net physics level standard technology. At present UWB has two big ... -
Based on GPRS mailing address street light monitor’s design
Wednesday, November 19th, 2008 at 00:45 | No commentsCategories: Communication NetworksShort Content: Abstract: This article described one kind based on the GPRS mailing address street light monitor design. Key word: GPRS; Street light monitoring IntroductionLive the enhancement which along with the urban night scene illumination facility's rapid development and the people savors, set a higher request regarding the urban light facility construction. The road lighting street light, decorated the colored lantern, the light eruptive fountain, the colored lantern lawn, the building spotlight and so on various characteristic light to constitute the beautiful ... -
Between MSP430 multi-processor’s mailing address and agreement
Tuesday, October 28th, 2008 at 05:23 | No commentsCategories: Communication NetworksShort Content: Abstract: The MSP430 function was already formidable, its internal peripheral device is rich, suits the numerous situation uses; But in the large-scale complex situation or the timely request high situation, uses processor processing all services, always appears some insufficiencies. The introduction multi-processor cooperation work's pattern, may enhance system's timeliness, the reliability and the serviceability; Using the MSP430 inherent characteristic, chooses the UART pattern, uses .ModBus the communication protocol, may carry on between the different processor's data exchange.Key word: Multi-processor UART ... -
Realizes the portable satellite equipment’s fast correspondence with the monolithic integrated circuit
Tuesday, October 28th, 2008 at 00:33 | No commentsCategories: SCMTags: Correspondence, GPSShort Content: The satellite communication takes corresponds now transmission domain one of three big props, is far by its transmitting range, coverage area Guang Er in domains and so on two-way communication transmission, television direct transmission is playing the influential role. The modern satellite communication ground station has the corresponding antenna tracking and the server, the antenna control device through the judgment satellite beacon's method, actuates the antenna alignment satellite. But regarding the home use satellite TV, the open country shoulders ...
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