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Communication component and method used for bedirectional transmission data

A technology of communication components and data packets, which is applied in digital transmission systems, data exchange through path configuration, transmission systems, etc., and can solve problems such as access conflicts

Active Publication Date: 2011-10-05
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when different master units want to access the data of the communication component CC at the same time through their system bus interfaces, access conflicts may occur

Method used

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  • Communication component and method used for bedirectional transmission data
  • Communication component and method used for bedirectional transmission data
  • Communication component and method used for bedirectional transmission data

Examples

Experimental program
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Embodiment Construction

[0038] as available from image 3 As can be seen, the multiprocessor gateway 1 has a plurality of communication modules 2-i according to the invention which are each connectable to a serial bus 3-i. The serial bus 3-i is, for example, a field bus or an Ethernet bus. Data is transmitted via the serial bus 3-i in packets. The transmitted data packets DP contain management data or header data and payload data or payload data. The multiprocessor gateway 1 has a plurality of host units or processors 4-1, 4-2. These host units can take on various functions. exist image 3 In the example shown, the first master unit consists of a gateway unit 4-1 controlling the data transmission between the various communication components 2-i according to the invention. The other processor 4-2 is the main CPU for data processing of the internally transmitted data words DW. In addition, the multiprocessor gateway 1 has a plurality of system buses 5-1, 5-2. Each master unit 4-1, 4-2 preferably h...

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PUM

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Abstract

The invention relates to a communication component for connection of a serial bus which transmits data in a packet-oriented manner, to a plurality of system buses of a gateway which transmit data item by item. Said communication component comprises a communication protocol unit connected to the serial bus for conversion between data packets and messages which consist of respective pluralities of data items, a message forwarding unit for forwarding messages between at least one message memory and the communication protocol unit and buffer memories, and a plurality of interface units which are connected to respective system buses of the gateway. Every interface unit is connected to at least one respective buffer memory which temporarily stores a message. Data items are simultaneously transmitted from and to the buffer memories of the interface units via a plurality of system buses and their respective interface units associated therewith from and to the buffer memories of the interface units without waiting time.

Description

technical field [0001] The invention relates to a communication module for connecting a serial bus, in particular a communication module for a gateway connected to a plurality of serial field buses. Background technique [0002] The networking of controllers, sensors and actuators by means of networks or communication systems consisting of communication lines, especially buses and corresponding communication components, has grown rapidly in recent years in modern automobile manufacturing or mechanical manufacturing, especially in the field of machine tools and automation. Synergy is achieved by distributing functionality to multiple users, especially the controller. People call it a distributed system. Such a distributed system or network therefore consists of subscribers and one or more bus systems which connect these subscribers. Communication between different stations or users is therefore increasingly taking place via such communication systems, bus systems or network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/38H04L12/46H04L12/56H04L12/40
Inventor M·伊勒J·陶布T·洛伦茨
Owner ROBERT BOSCH GMBH