Compact integrated redundancy controller and control method thereof

Abstract

The invention provides a compact integrated redundancy controller and a controlling method thereof. The controller is provided with two controllers which have identical structure and can be used alternatively by displacing. Each controller is provided with a storage chip, a flash memory chip, a firmware chip and a programmable apparatus which are respectively connected with a main control chip; the controller is also provided with a first serial port transceiver, a second serial port transceiver, a PCI bridge piece and a network card controller. The serial port transceivers are connected with a CPCI connector by a RS422 serial port; the network card controller is connected with the CPCI connector by an Ethernet port; the PCI bridge piece is connected with the CPCI connector by a CPCI bus; the serial port transceivers are also connected with a maintenance serial port; a programmable apparatus PLD is also connected with the CPCI connector by a HA control signal. The methods comprise the starting method of main/standby controllers, the method that a standby controller is upgraded into a main controller automatically and a check point protocol control method when the main controller and the standby controller are switched in a system. The controller and the method can upgrade the system controller of a traditional CPCI system into a double-redundancy standby system, which solves the hidden trouble that single-point failure can easily occur in a CPCI system controller.

Description

technical field [0001] The present invention relates to a redundant controller system. In particular, it involves a system controller that can upgrade the traditional CPCI system to a dual-redundancy backup system. The two physical controllers monitor and back up each other, thereby solving the hidden danger that the CPCI system controller is prone to single-point failure, thereby greatly A compact integrated redundant controller for improving the availability of a CPCI system and a control method thereof. Background technique [0002] Such as figure 1 As shown, the traditional redundant controller system adopts a 6U CPCI structure, which consists of two system controllers and two hot-swap controllers, occupying four CPCI slots. Mainly have the following deficiencies: [0003] 1. The plate type is large and requires a large space, which is not conducive to miniaturization and cannot be used in industrial environments with strict space requirements [0004] 2. The system ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a system controller that can upgrade the traditional CPCI system to a dual-redundancy backup system. The hidden danger of point failure, thereby greatly improving the availability of the compact integrated redundant controller of the CPCI system and its control method

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