Confidence storage method and system for key data of safety-critical equipment

A technology of key data and equipment, applied in the field of safety-critical systems, can solve problems such as affecting the efficiency of system operation and hidden safety risks

Active Publication Date: 2020-12-11
卡斯柯信号(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up the application scenarios of safety-critical systems listed above, the current application scheme is carried out in the way of manual intervention. Due to manual intervention i...

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  • Confidence storage method and system for key data of safety-critical equipment
  • Confidence storage method and system for key data of safety-critical equipment
  • Confidence storage method and system for key data of safety-critical equipment

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Embodiment Construction

[0055] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0056] The embodiment of the present invention provides a method for trusted storage of key data of safety-critical equipment, such as figure 1 As shown, this method is to store key data in multiple secure computing devices in a security-critical system, in order to ensure the existence and security of key data without manual intervention after the initial device encounters unexpected downtime or restarts. Believe it, this embodiment of the pre...

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Abstract

The invention discloses a confidence storage method and system for key data of safety-critical equipment, relates to the technical field of safety-critical systems, and aims to ensure the existence ofthe key data and ensure the security confidence without manual intervention after initial equipment encounters unexpected downtime or restart. The main technical scheme is as follows: after the safety critical system is powered on for the first time and initialization confirmation is completed, the initial equipment generates key data, and the key data at least comprises line occupation conditioninformation in a jurisdiction range corresponding to the initial equipment; according to a preset sending period, the initial equipment multicasts key data frame messages to the multiple target devices, and the key data frame messages are obtained by processing key data on the initial equipment according to a predefined key data frame message structure; and the target device receives the key dataframe message and writes the key data frame message into a specific storage area pre-defined by the target device. The method and the system are applied to confidence storage of key data of safety-critical equipment.

Description

technical field [0001] The invention relates to the technical field of safety-critical systems, in particular to a method and system for trusted storage of key data of safety-critical equipment. Background technique [0002] Safety-critical systems (Safety-critical systems) refer to systems whose failures often cause major losses of life, environment, property, etc., and their typical application fields include aviation, aerospace, military, railway signals, automotive electronics, nuclear power plants, petrochemicals, etc. and medical fields. The safety-critical system represented by the railway signal system is moving towards the trend of reducing the arrangement of equipment along the line in the direction of system evolution. The representative is the introduction of positioning technology including Beidou or GPS to realize the position positioning of the train. Correspondingly, secondary detection equipment is no longer or reduced, including track circuits or axle coun...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/18B61L27/00B61L15/00
CPCH04L67/12H04L12/185B61L15/0063B61L27/20
Inventor 韩涛徐庆标张波
Owner 卡斯柯信号(北京)有限公司
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