Dual-system synchronous safety computer platform

Abstract

The invention provides a dual-system synchronous security computer platform, which is composed of a main control layer and an execution layer, wherein the main control layer is composed of a main control module, and is divided into main and standby systems, that is, is divided into a main control module A and a main control module B; the execution layer consists of a certain number of expandable execution modules, each of which is further divided into a security-related module and a non-security-related module, and the design of power supply isolation and bus isolation is carried out for the security function modules and the non-security function modules; the security computer platform adopts a double 2-vote-2 security redundancy architecture; all modules of the platform are connected by means of internal redundant CANFD buses; and the main control modules of the main and standby systems in the main control layer adopt Ethernet buses to implement main and standby machine synchronization and data interaction communication of the main and standby systems. The dual-system synchronous security computer platform has the technical advantages that the expansibility is excellent, the independent and redundant bus architecture is adopted between the main and standby systems, the security modules and non-security modules adopt the power supply isolation and bus isolation security design,and the reliability and security are higher.

Description

Technical field [0001] The invention relates to the field of railway signals, in particular to a new type of safety computer platform, which has a more complete safety system architecture and a safer protection design, as well as better usability and scalability. Background technique [0002] With the development of railway transportation, safety equipment in the field of railway signaling is constantly updated and improved. In the information age, computers and network technologies are rapidly popularized and applied, and secure computers are used in more and more fields and industries that have strict security requirements. In the field of railway signals, safety computers play an extremely important role in ensuring reliable signal transmission. [0003] In the railway signal field, the traditional safety computer is generally based on a single set of internal communication bus, and adopts the main and standby structure. The functional unit modules are often connected in a fixe...

AI Technical Summary

Problems solved by technology

[0003] In the field of railway signaling, traditional safety computers are generally based on a single set of internal communication buses, and adopt a master-standby structure. Each functional unit module is often connected in a fixed way, resulting in a single communication method between the master and backup machines, which is not safe and is not conducive to Disadvantages such as function expansion and system upgrade

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