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Redundant computer arrangement

A computer and computer system technology, which is applied in computing, hardware redundancy for error detection of data, redundancy in computing for data error detection, etc., can solve problems such as unreliability cannot be ruled out

Inactive Publication Date: 2009-12-23
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unreliability before driving past Balise cannot be ruled out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Via the external residual memory connected to each computer, the required reliability standard is guaranteed in the event of a restart of another computer (approximately a partner computer). In addition, data on reliability-critical events required to update the operating state of the partner computer is fed into the external residual memory. Certain measures must only be introduced in the case of reliability-critical events occurring during the disconnection phase of the computer to be restarted. If instead of storing the content of reliability-critical events, but only their occurrence, the start-up of the partner computer is either prevented or permitted with corresponding reliability-critical restrictions. However, an external residual memory is preferably provided to store the contents of reliability-critical events. In this way, the memory contents are used to update the operating state of the partner computer, so that the partner computer can then be completely ...

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PUM

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Abstract

The computer arrangement contains at least two secure computers or at least three channels that process identical input data and each computer is connected to an external remanent memory that stores the on / off state of a partner computer and security-critical events or their existence. Starting the partner computer is either inhibited or allowe4d with restrictions if it is off and there is at least one security-critical event.

Description

technical field [0001] The invention relates to a redundant computer arrangement with at least two reliable computers processing the same input data. The redundancy of the reliable computers is preferably achieved by a doubling of the computer structure (2x2 of 2 computers), wherein both computers process the same input data and get the same output when the data is processed correctly. However, an at least three-channel configuration of the computer configuration (two three-channel computers) is also conceivable. Background technique [0002] In the following, without limiting the invention to a computer configuration with two two-channel computers, it basically relates to a 2x2 configuration of two computers. [0003] Write to the memory parts of two computers in parallel without failure. These memory components store identical, securely stored data using signaling technology. This means that both computers have the same current operating state. In the case of an on-boa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/16G06F11/00G06F11/14G06F11/20
CPCG06F11/004G06F11/1417G06F11/165G06F11/1658
Inventor 迈克尔·温格尔
Owner SIEMENS AG