Method for transmitting data of dissimilar bus cooperative work and equipment thereof

A bus transmission and data transmission technology, which is applied in the field of data transmission, can solve the problems of no redundant backup, unsuitable data transmission, limitation of IEEE1394 bus data transmission speed, etc., to achieve the effect of ensuring normal communication and effective work

Inactive Publication Date: 2005-04-27
CENT FOR SPACE SCI & APPLIED RES
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Problems solved by technology

[0005] However, the current IEEE1394 bus has no redundant backup and does not have the characteristics for special working environments, so it is not suitable for data transmission in harsh environments (such as space environments, etc.)
In addition, the embedded system based on the 80186 processor is slower, such as the operating frequency of the 80186 is 16MHz
Such a system frequency is difficult to match with the very high data transmission rate of the IEEE1394 bus, which limits the data transmission speed of the IEEE1394 bus
[0006] Therefore, neither the data transmission equipment based on the MTL-STL-1553B bus nor the IEEE1394 bus can meet the needs of reliable transmission of key data and high-speed real-time transmission of general data in harsh environments at the same time.

Method used

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  • Method for transmitting data of dissimilar bus cooperative work and equipment thereof
  • Method for transmitting data of dissimilar bus cooperative work and equipment thereof
  • Method for transmitting data of dissimilar bus cooperative work and equipment thereof

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] see figure 1 , the schematic diagram of the heterogeneous bus cooperative data transmission device of the present invention, including an 80186CPU1, 512K SRAM memory 6 as data memory, and 256K EPROM memory 7 as program memory. CPU1, SRAM memory 6 and EPROM memory 7 together serve as the data processing center of the device, as the control and processing center of the entire device, and coordinate the work of each functional module in the device. However, it should be understood that, according to specific applications, the data processing center of the data transmission device of the present invention may also use other CPUs, or other processor chips integrated with memory without using independent data memory and program memory.

[0039] In the data transmission equipment of the present invention, the MTL-STL-1553B protocol i...

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Abstract

The present invention discloses data transmission method and equipment with synergetic hetero buses. The method has key data transmitted via MTL-STL-1553B bus and common data transmitted via IEEE1394 bus. The equipment includes CPU, MTL-STL-1553B bus interface chip, via IEEE1394 bus interface chip, program memory and data memory, connected via self-defined bus. The data transmission equipment of the present invention has both high reliability MTL-STL-1553B interface and high transmission rate IEEE1394 interface, and can realize high speed real-time data transmission and reliable network control and monitoring. At the same time, two kinds of buses back up mutually to ensure the normal and effective communication in the network.

Description

technical field [0001] The present invention relates to a data transmission method, more specifically, relates to a method and equipment for integrating MIL-STD-1553B bus interface and IEEE1394 bus interface for data transmission. Background technique [0002] The MIL-STD-1553B bus is a time-division command-responsive multiplexed data bus. The composition of the bus includes a bus controller, which is responsible for bus scheduling and management, and is the initiator and organizer of bus communication; several remote terminals and a bus monitor. The bus adopts command response mode to realize system communication, and adopts redundant channel, parity check and corresponding error handling to improve the reliability of system communication. 1553B strictly defines the electrical signal characteristics of the physical layer and the error detection method and instruction format of the data link layer and network layer. The 1553B bus has high reliability, so it has been succe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L12/40H04L29/02
Inventor 李慧军曹松惠平孙辉先陈小敏安军社汪大星
Owner CENT FOR SPACE SCI & APPLIED RES
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