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Data transfer between computing units that are secure with respect to signalling

A computing unit and technical technology, applied in the field of data transmission, can solve problems such as signal technology insecurity, and achieve the effect of simplifying synchronization, improving clock synchronization data transmission technology and real-time lossless data communication

Inactive Publication Date: 2019-04-16
SIEMENS MOBILITY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As input and output modules conventional components produced in series production are usually used (so-called COTS components, "commercial off-the-shelf commercial off-the-shelf"), which are not signal-safe

Method used

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  • Data transfer between computing units that are secure with respect to signalling
  • Data transfer between computing units that are secure with respect to signalling
  • Data transfer between computing units that are secure with respect to signalling

Examples

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Embodiment Construction

[0029]FIG. 1 shows a signaling-safe computing unit 10, which has already been briefly described above, according to the prior art, and which is designed for sending to / from another signaling-technically safe (not shown in FIG. 1 shown) computing unit to send / receive data. Computing unit 10 is designed as multi-channel and includes a multi-channel protected clock 16 . Computing unit 10 is designed to redundantly execute security protocols 18 for data transmission as well as application programs 12 . The data 14 generated by the application 12 is forwarded to the input and output memory 22 as data 20 protected by means of a security protocol 18 and provided with a time stamp generated by a secure clock, and from there by means of conventional input and output modules (eg serial UART or Ethernet controller) via a data line 26 (such as a bus, LAN, etc.) to another similarly constructed computing unit (not shown in FIG. 1 ) that is signal-safe.

[0030] in Figure 1, and in the su...

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PUM

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Abstract

The invention relates to an input and output module (50) for transmitting and receiving data via a data line (26). The input and output module comprises a protocol machine (118) for a security protocol for data transfer and a clock (16). The protocol machine and instructions for clock processing are stored as sequence control in a read-only memory (17) of the input and output module.

Description

technical field [0001] The invention relates to a system and a method for transmitting data between signaling-safe computing units. Background technique [0002] The term "signallingly safe" is to be understood in conjunction with the present invention to correspond to the corresponding term in railway technology. For example, the standard EN 50129 can be used as a reference. “Significantly safe” essentially means that the probability of occurrence of a defined hazard is below a predetermined threshold value. Safety in signaling technology is usually produced by performing calculations redundantly. Preferably, the calculations are performed diversely and redundantly. The terms "redundant" and "multi-channel" are subsequently used synonymously. For this purpose, for example, first hardware and different, ie diverse, second hardware are present in the computing unit. Calculations are then performed on the first hardware and the second hardware respectively and the corresp...

Claims

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Application Information

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IPC IPC(8): G06F11/16G06F11/07G06F11/30
CPCG06F11/0796G06F11/1616G06F11/1625G06F11/3041G06F11/1604
Inventor H-H.施韦斯塔尔
Owner SIEMENS MOBILITY GMBH
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