51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Wednesday, December 10th, 2008 at 03:16 | No comments

Categories: Communication Networks

Tags: CAN main line, ethernet, gateway

Short Content: Abstract: This article has studied the CAN main line and the ethernet interconnection technical point systematically, first analyzes the interconnection technique to realize the difficulty - - protocol conversion which in the process meets. Then proposed one kind of CAN main line and the ethernet system interconnection design proposal, and elaborated in detail its system's software and hardware realizes the method. In order to enhance system's performance, uses high speed micro controller SX52 to design the embedded transparent gateway, introduced ...

Tuesday, December 9th, 2008 at 05:02 | No comments

Categories: Communication Networks

Tags: blue tooth, connection, Embedded, family network, gateway, radio frequency

Short Content: Abstract: The blue tooth is one kind of short distance wireless communication technology, as a result of its low cost, the low power loss and the redundant reliable merit is widely accepted by the modern family network. In the article introduced the blue tooth technology and the family network basic concept which constitutes by each kind of information electrical appliances, as well as Motorola Corporation's embedded processor MCF5272 some key property characteristic, and elaborated realizes the family blue tooth gateway's ...

Sunday, December 7th, 2008 at 17:29 | No comments

Categories: Communication Networks

Tags: AT75C220, gateway, IP telephone, VoIP

Short Content: Picking   Wanting: This article proposed from the application angle one kind of new local area network IP telephone's software and hardware design proposal, namely takes the hardware platform by at75C220 development board, uses H.323 under the mClinux operating system the agreement stack development local area network IP telephone terminal, and has enumerated some highly effective processing method to the realization key question.Key word: IP telephone; Gateway; Real-time operating system; High-level simplification set of instructions computer;　　Foreword　　Because the computer network technological ...

Wednesday, October 29th, 2008 at 12:30 | No comments

Categories: Communication Networks

Tags: gateway, GM8123, tcp/ip

Short Content:     Along with enterprise size's expansion and the Internet technology's widespread popularization, the global each domain's different enterprise was already right "lets the equipment networking" achieve the mutual recognition, but in the industrial control and the communication facility, more actually conforms to the RS232 standard serial port equipment. To be how many a serial port the data to retransmit to the network, realized equipment's remote control, the data long-distance transmission then to become the question which urgently awaited to be ...

Wednesday, October 22nd, 2008 at 00:25 | No comments

Categories: Communication Networks

Tags: AT89C51CC01, CAN, field bus, gateway, LIN

Short Content: Introduction     Field bus technology already widespread application in industrial control, particularly CAN (Controler Area Nerwork) main line, because has the reliability to be high, the cost low, easy to realize and so on merits, held the big share in field bus's actual project application. Follows the bussing technique development, LIN (Local Interconnect Network) the main line is taking one kind of low cost the serial communication network, its goal is provides the auxiliary function for the existing field bus ...

Monday, October 20th, 2008 at 15:05 | No comments

Categories: Communication Networks

Tags: gateway, H.323; SIP, MC, protocol conversion, video frequency conference

Short Content: The abstract develops unceasingly along with the VOIP technology and mature, the video frequency conference system has become the computer communication the important aspect. This article in view of supported the multi-agreements the video frequency conference system's design and realizes, has analyzed present in visible correspondence domain two big mainstream agreement H.323 and the SIP characteristic and the difference, gave has solved between H.323 and the SIP protocol conversion gateway design proposal.  Key word H.323; SIP; MC; Video frequency ...