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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 ... -
New ethernet controller ENC28J60 and connection technology
Wednesday, October 22nd, 2008 at 02:38 | No commentsCategories: Communication NetworksShort Content: Introduction ENC28J60 is 28 pin independent ethernet controller which Microchip Technology (American micro core science and technology company) the near future will promote. Before then, the embedded system development may elect the independent ethernet controller is for the personal computer system design, like RTL8019, AX88796L, DM9008, CS8900A, LAN91C111 and so on. These component structure is not only complex, the volume is huge, and is quite expensive. At present in the market the majority of ethernet controller's seal surpasses ... -
Long distance correspondence S1513 mineral product safety system design
Monday, October 20th, 2008 at 17:18 | No commentsCategories: Communication NetworksTags: Correspondence, electronic tag, long distance, radio frequency recognition, S1513, Safe monitorShort Content: The abstract mining accident story sometimes occurs, causes the significant personnel casualty frequently, how to drop to the personnel casualty lowly, this article gives one kind of mineral product safety system design. In the article, first realizes the technology and the building block to the mineral product personal security observation system carries on the brief description. Then, introduction system's core part - - long distance correspondence S1513 structure principle and characteristic, by label S1255 structure and principle of work. Finally, ... -
Electric power carrier communication control terminal design - 51RD Chinese electronic net
Saturday, October 18th, 2008 at 20:52 | No commentsCategories: Communication NetworksShort Content: The power line carrier (PLC) corresponds refers to the use existing power line, will simulate or the digital signal through the carrier way carries on the transmission the technology. However, the following shortcoming causes PLC the main application - - "the electric power surfer" not to be able to apply massively. The distribution transformer has the iris action to the electric power intelligence signal; The three-phase electric power space has the very big signal to lose (10~30dB); The different ... -
P89LPC922 from arranges ISP the code the research
Sunday, September 14th, 2008 at 05:56 | No commentsCategories: SCMShort Content: Expands unceasingly along with the micro controller application domain and thorough, also gradually enhances to its various aspects performance's request. At present, more and more type's micro controllers have ISP (In System Programrning) namely in the system programming function. When ISP programming does not need to emigrate the micro controller from the target system, and only needs the limited several pins and the outside is connected, maximum limit reduced the extra part expenses and the circuit wafer area, causes ... -
Realizes DSP2407A and the S3C4480 correspondence with CPLD
Tuesday, September 9th, 2008 at 15:02 | No commentsCategories: EDA/PLDShort Content: In the modern automobile electron, has many micro controllers to be together coordinated generally works. The DSP controller uses the Harvard structure, the operating speed is quick, therefore widely uses the DSP chip in the automobile electron to realize the automobile dynamic system's control. ARM is one kind of 32 micro controllers, has rich outside to expand the connection, therefore realizes the big Rong Zui data storage and the man-machine interaction or the GPS global positioning system generally in ...
51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors
Electronic Design and Research - Electronic Engineers website
