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ARM embedded type control system and control method based on redundancy architecture

An embedded control and redundancy technology, which is applied in the direction of hardware redundancy for data error detection and response error generation, can solve problems such as system failure, reduce the probability of crashes, and improve reliability Effect

Inactive Publication Date: 2015-03-18
SHANGHAI INST OF ELECTROMECHANICAL ENG
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Problems solved by technology

[0004] The problem solved by the present invention is that the existing embedded control system will cause the entire system to fail to work normally due to CPU abnormal crash or bus communication failure; in order to solve the problem, the present invention provides an ARM based on CPU redundancy and bus interface redundancy Embedded control system and control method

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  • ARM embedded type control system and control method based on redundancy architecture
  • ARM embedded type control system and control method based on redundancy architecture
  • ARM embedded type control system and control method based on redundancy architecture

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with accompanying drawing

[0023] ARM (XScale PXA255 processor) embedded control system adopts the design with embedded microprocessor XScale as the core unit. 10 / 100M Ethernet bus interface, 289A board, CAN board, A / D board, digital input and output board (KGIO board) are expanded around the processor to complete the communication and control functions of external devices . Programmable Logic Device (FPGA) assists the processor in completing the redundant switching of the CPU system.

[0024] ARM (XScale PXA255 processor) embedded control system includes 7 kinds of interface boards, namely: KZ board (including KZ-A template, KZ-B template, KZ-C template), 289A board, CAN board, A / D board, KGIO board, RPOW board and SBUS backplane. KZ-A interface board contains 1 independent CPU system (master CPU), KZ-B interface board contains 1 independent CPU system (slave CPU), KZ-C interface board ...

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Abstract

The invention relates to an ARM (XScalePXA255 processor) embedded type control system based on CPU (central processing unit) redundancy design and bus interface redundancy design. The embedded type control system comprises a main CPU board, an assistant CPU board, a network board, a CAN board, a 289A board, a CAN board, an A / D board, a KGIO board, a power supply board and an SBUS baseboard. The redundancy of the CPU is achieved by the CPU board; the redundancy of the network bus interface is achieved by the network board; the redundancy of the CAN bus interface is achieved by the CAN board; and the redundancy of the 289A bus interface is achieved by the 289A board. The redundancy of the CPU, the redundancy of network bus interface, the redundancy of the CAN bus interface and the redundancy of the 289A bus interface can be achieved through the collaborative design of the hardware FPGA arbitration and drive and reentrant breakpoint of the software.

Description

[0001] technical field [0002] The invention relates to ARM (XScale PXA255 processor) embedded software and hardware development technology, specifically a design of an ARM embedded control system based on CPU redundancy and bus interface redundancy. Background technique [0003] The following faults may occur when the embedded control system is working: 1. CPU abnormal crash: CPU running temperature is too high or CPU program runs away, which will cause CPU abnormal crash; 2. Bus communication failure: for example, the communication cable is damaged, causing communication Interruption, or interfering signals into the communication bus lead to burning bus interface devices. Said failures can cause the entire system to fail to function properly. Contents of the invention [0004] The problem solved by the present invention is that the existing embedded control system will cause the entire system to fail to work normally due to CPU abnormal crash or bus communication failu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/16
Inventor 戴铮邹波赵伟忠吴洪波王家鑫李加宝陆荣国贺占庄朱飞
Owner SHANGHAI INST OF ELECTROMECHANICAL ENG
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