Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Dual-core dual-lockstep two-out-of-two architecture and its security platform

A security platform and lock-step technology, applied in the direction of program control, instrument, computer control, etc., can solve the problem that the monitoring unit cannot guarantee the monitoring of the processing unit, and achieve the effect of reducing the common cause failure of the system

Active Publication Date: 2020-09-25
CRSC WANQUAN SIGNAL EQUIP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the improved two-out-of-two architecture realizes the monitoring of two processing units by adding a monitoring unit, it also has the function of cutting off the output of the two-out-of-two comparison unit when the monitoring data is inconsistent, but when the monitoring unit has a specific single point of failure , the monitoring unit cannot guarantee the monitoring of the two processing units, and the improved two-out-of-two architecture is almost downgraded to a general-purpose two-out-of-two security architecture
Therefore, the improved two-for-two architecture does not really solve the problems in the general two-for-two security architecture.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dual-core dual-lockstep two-out-of-two architecture and its security platform
  • Dual-core dual-lockstep two-out-of-two architecture and its security platform
  • Dual-core dual-lockstep two-out-of-two architecture and its security platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 , the functional block diagram of the dual-core dual-lockstep two-out architecture of the present invention, the security platform based on this architecture includes a main system and a backup system both of which are dual-core dual-lockstep two-out architectures, and the two systems form a two-by-two redundant architecture .

[0036] The main and backup systems both include three processing units, the first processing unit 1, the second processing unit 2, and the third processing unit 3; the main cores in the first processing unit 1 and the second processing unit 2 perform the same safety-critical business , to complete the main function of the system; the first processing unit 1 and the second processing unit 2 verify that the core executes the function of monitoring the comparator. The third processing unit 3 mainly completes the two-for-two voting of the first processing unit 1 and the second processing unit 2, receives the health signal of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a double-core double-lock-step two multiply two structure and a safety platform thereof. The structure comprises a main system and a standby system with the same structure, wherein each of the main system and the standby system adopts a double-core double-lock-step two multiply two structure. The double-core double-lock-step two multiply two structure comprises three processing units, specifically, a first processing unit, a second processing unit and a third processing unit. According to the structure, the double-lock step is realized on the basis of the two double-core processing units, a safe structure which is voted by two multiply two is realized through the third processing unit, the safety platform of the two multiply two structure is realized, and the platform meets the requirements of high safety and high reliability in the safety key field.

Description

technical field [0001] The invention belongs to the field of safety-critical related technologies, and in particular relates to a dual-core, dual-lockstep, two-out-of-two architecture and a security platform based on the architecture. Background technique [0002] The safety system based on the two by two architecture has been widely used in safety-critical fields (such as rail transit, nuclear power, etc., and its safety and reliability have been fully certified. The existing general two by two architecture consists of four hardware structures and It is composed of processing units with exactly the same functions, and every two processing units form a single-system two-out-of-two system (refer to figure 2 ), the structure and function of the two systems are exactly the same, and there is a two-by-two redundancy relationship between the two systems. The two processing units in a single system independently perform software data comparisons between the calculation results of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/24024
Inventor 桂爱刚张勇钟珅杨彩霞张永生李晶晶虞乾俪
Owner CRSC WANQUAN SIGNAL EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products