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Method and device for data communication and comparison of high-reliability system

A data communication and reliable technology, applied in the data communication and comparison fields of high-reliability systems, can solve the problems of unguaranteed quality, manual installation, connection, large system scale, etc., to achieve easy mass production and processing, ensure correctness, high The effect of reliability

Inactive Publication Date: 2013-04-03
BEIJING CONTROL TECH
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Problems solved by technology

Between two pairs of computers, and between two computers in each pair, data exchange is required. Traditional methods generally use network communication to exchange data. The network adopts a dual-network form to avoid single-point failures, so the system is large in scale and complex in structure. , not easy to miniaturize, and manual installation and connection, the quality cannot be guaranteed

Method used

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  • Method and device for data communication and comparison of high-reliability system
  • Method and device for data communication and comparison of high-reliability system

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Embodiment Construction

[0027] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0028] The present invention provides a data communication and comparison method for a highly reliable system, which effectively reduces the complexity of the system, reduces the production cost, and improves the reliability of the system, such as figure 1 As shown, it is realized through the following steps:

[0029] Step 1: Obtain the data processed by the first CPU unit and the second CPU unit respectively through the first bus transceiver and the second bus transceiver;

[0030] Step 2: The first bus transceiver sends the obtained data processed by the first CPU unit and the second CPU unit to the first FPGA for storage; the second total transceiver processes the first CPU unit and the second CPU unit The acquired data is sent to the second FPGA for storage. Both the first FPGA and the second FPGA have comparison units.

[0031] Step 3: compare...

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Abstract

The invention relates to a method and a device for data communication and comparison of a high-reliability system. The device comprises two bus transceivers, two relay charge / discharge control units, two relays and two FPGAs (Field Program Gate Array) with comparison units, and is further provided with a dynamic circuit, wherein the two bus transceivers are respectively used for communication between the two FPGAs and two CPUs (Central Processing Units), and data processed by the two CPUs are sent into the two FPGAs; the comparison units in the two FPGAs are respectively used for comparing data which are processed by the two CPUs and are stored in the FPGAs; if a comparison result indicating correctness is obtained, the comparison units send inverse square wave signals to the dynamic circuit, and the dynamic circuit controls one relay to be started and the other relay to be closed through the two relay charge / discharge control units; and if the comparison result indicating fault is obtained, the comparison units send error signals to the dynamic circuit, and the dynamic circuit controls the two relays to be closed through the two relay charge / discharge control units. The method and the device, disclosed by the invention, have the advantages of effectively reducing system complexity and improving system reliability.

Description

technical field [0001] The invention relates to the field of high-reliability computer systems, specifically, a data communication and comparison method and device for high-reliability systems. Background technique [0002] The computer system with the highest reliability at present is the two-by-two system, which has two pairs (four) of computers, which serve as hot backups for each other. When one pair of computers fails or an error occurs, it will switch to the other pair of computers to continue working. Each pair (two) computers are responsible for processing the same task, and perform data verification with each other to ensure that the calculation data obtained by the two computers for the same task are the same, and if they are different, it will be regarded as a failure. [0003] In order to avoid a single point of failure, each device in the high-reliability computer system is the same two, and performs the same task. Between two pairs of computers, and between tw...

Claims

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Application Information

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IPC IPC(8): G06F15/17
Inventor 岳世锋王东尧王迎春叶剑波魏勇王军鹰祝君冬张新李菲江宏
Owner BEIJING CONTROL TECH
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