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Apparatus and methods for safety-critical applications

A security, device technology, applied in the field of devices and methods for safety-critical applications, capable of solving the problem of costly post-authentication

Active Publication Date: 2018-05-22
盈德克勒电控有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An operating system, which must also be executed, is usually provided here, and a change of the individual safety-relevant functions in this operating system would result in a complex post-certification process.
In the already mentioned DE 10 2005 007 477 A1 it has already been pointed out that a machine control with individually safety-certifiable safety modules offers advantages in the case of certification, but a defined PC-infrastructure is required here and the safety modules must pass Operating system and PCI-bus to combine

Method used

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  • Apparatus and methods for safety-critical applications
  • Apparatus and methods for safety-critical applications
  • Apparatus and methods for safety-critical applications

Examples

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Embodiment Construction

[0109] exist figure 1 A device 1 for safety-critical applications is shown in the figure, which has a central processing unit 10, the central processing instrument has a monitoring module 11 and / or a protection module 14, and the central processing unit is connected with a microcontroller 101 and a first storage module 12 communicates with the second storage module 13 or has these components. The central processing unit 10 communicates with a storage device 20 , which includes a data exchange device 21 and a storage area 22 . Furthermore, a hardware component 30 is shown, which is connected to a safe runtime system (LZS) 33 and a safe application program (AWP) 31 as well as a normal runtime system (LZS) 34 and a normal application program (AWP) 32 Or have these components. The illustrated configuration is part of a hardware architecture 300 or a runtime system architecture 301 . exist figure 1 Indicates the separation level T which extends between the normal LZS 34 or AWP ...

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Abstract

An apparatus and a method for the parallel and independent operation of a normal program and a secure program on the basis of a runtime system structure have all components that are relevant to the control integrated on a hardware component with a specific hardware architecture and be isolated from one another by a runtime system structure for two dual runtime systems for making changes to non-security-relevant components without restriction. The isolation can be provided by prioritizing one of the runtime systems. Such a runtime system structure or hardware architecture eliminates the need for follow-up certification of user-programmable controllers and the certification of the security-critical component is valid even when changes to the non-security-relevant components are made.

Description

technical field [0001] The invention relates to a device and a method for running normal programs and safe programs in parallel and independently in safety-critical applications, especially in machine environments. Background technique [0002] In the context of freely programmable electronic control units, the control unit is usually adapted by providing multifunctional inputs and outputs, for example for use in mobile working machines and in particular with customer-specific requirements to be satisfied by such machines Task aspect. For this purpose, a specific application program (AWP) is created by the manufacturer of the working machine on the basis of the programming system, which includes, for example, program creation, program testing, program compilation and / or uploading of the program into the control device. In this case, a runtime system (LZS) is implemented in many cases on the control unit, in the context of which runtime system the AWP generated with the prog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05G06F9/48
CPCG05B19/058G05B2219/14012G05B2219/24008G06F9/544G06F21/74G06F11/1479G06F11/1629G06F11/1654G06F11/1658G06F11/1675G06F2201/845G05B19/048
Inventor A·霍勒H-D·凯泽W·普菲斯特J·利韦H-J·埃梅林
Owner 盈德克勒电控有限公司
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