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System fault detection and recovery method based on Master-Slave basic framework

A system failure and recovery method technology, applied in the field of aerospace computers, can solve problems such as increased volume and weight costs, inability to recover, and limited self-recovery means, so as to save development costs, prolong service life, and improve system reliability and safety. Effect

Active Publication Date: 2020-09-18
XIAN MICROELECTRONICS TECH INST
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Problems solved by technology

[0003] Such a design puts the upper computer itself in an isolated position, because there is no equipment to monitor and recover from failures, the upper computer can only rely on enhancing its own reliability and design limited means of self-recovery to deal with the adverse effects of the hostile cosmic environment on its
Enhancing the reliability of the computer will lead to a substantial increase in its volume and weight costs, while self-recovery means are very limited and there are some unrecoverable failures

Method used

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  • System fault detection and recovery method based on Master-Slave basic framework

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Embodiment Construction

[0034] The invention provides a system fault detection and recovery method based on the Master-Slave basic framework, improves the traditional Mater-Slave structure, and allows the lower computer to monitor certain states of the upper computer to perform fault recovery on it. The traditional Mater-Slave The structure is one-way control, the upper computer (Master) controls the lower computer (Slave), and the improved structure is two-way n-to-n control.

[0035] see figure 1 , a system failure detection and recovery method based on the Master-Slave basic framework of the present invention, including a host computer and a slave computer, the host computer sends health information such as a heartbeat signal, partial partition voltage telemetry, and complete machine current telemetry to a designated slave computer. The lower computer judges its status, and when the upper computer is found to have failures such as crash, single event lock, short circuit, etc., the lower computer w...

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Abstract

The invention discloses a system fault detection and recovery method based on a Master-Slave basic framework, and the method comprises an upper computer and a lower computer, the upper computer transmits health information to a specified lower computer, the lower computer judges the state of the upper computer, and the lower computer transmits a reset or switching instruction when a fault of the upper computer is found. According to the method, the traditional Master-Slave framework space navigation computer mode is improved, the improved Master-Slave framework is applied to the space navigation computer, the cost of the space navigation computer can be reduced, the reliability and safety of the space navigation computer are improved, and the service life of the space navigation computer is prolonged.

Description

technical field [0001] The invention belongs to the technical field of aerospace computers, and in particular relates to a system failure detection and recovery method based on a Master-Slave basic framework. Background technique [0002] Different from ground applications, computers on satellites, rockets or spacecraft have little opportunity to manually intervene in their working status. Traditional aerospace computers use the Master-Slave structure to solve the problem of system failure detection and recovery, that is, use a high-reliability host The computer monitors the working status of all relatively low-reliability lower computers. When the lower computer fails, the upper computer issues instructions to reset, switch, power off and restart. [0003] Such a design puts the upper computer itself in an isolated position, because there is no equipment to monitor and recover from failures, the upper computer can only rely on enhancing its own reliability and designing lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/07
CPCG06F11/0757
Inventor 王旭
Owner XIAN MICROELECTRONICS TECH INST
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