A Hot Standby Redundant System Using Hardware Memory Migration Synchronization

Abstract

The invention discloses a hot standby redundant system based on hardware memory movement synchronization. The system is respectively set on a local machine or an opposite machine. The system is connected with a master controller through a PCI bus. The system comprises a master FPGA chip, an auxiliary FPGA chip and an optical fiber conversion module. The master FPGA chip is equipped with a dual-machine data synchronization module, a master control logic module, a dual-machine hot standby redundant module and an FIFO cache area and is used for receiving a control instruction of the master controller, finishing storing and synchronizing synchronization data, transmitting and receiving heartbeat pulse signals with the opposite machine mutually and finishing switching a master / slave state. Theauxiliary FPGA chip is equipped with a transmitting module and a receiving module and is used for identifying, classifying, coding and decoding input / output signals and communicating with the oppositemachine through the optical fiber conversion module and an optical fiber. According to the system, local machine state parameter information and heartbeat communication are integrated in an FPGA processor, the integration degree of a redundant control module is improved, and an integrated size of a measurement and control device is reduced.

Description

technical field [0001] The invention belongs to the technical field of data transmission and transmission control, in particular to a hot standby redundant system adopting hardware memory transfer synchronization. Background technique [0002] With the demand for high reliability and miniaturization of missile ground test equipment, the performance of the test equipment dual-machine system, dual-machine hot standby redundant control logic, and dual-machine data synchronization speed has been further improved. At present, the heartbeat information and parameter information communication of the two-machine hot standby of the missile test equipment is realized by using different types of functional boards and the synchronization of the two-machine data is completed in the form of CAN bus. The functional modules required by the control logic are complicated, the functions are scattered, and the synchronization time is limited by the software Latency limitations. In order to ach...

AI Technical Summary

Problems solved by technology

At present, the heartbeat information and parameter information communication of the two-machine hot standby of the missile test equipment is realized by different types of functional boards and the synchronization of the two-machine data is completed in the form of CAN bus. The functional modules required by the control logic are complicated, the functions are scattered, and the synchronization time is limited by the software Latency limitations

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