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Embedded real-time control system of industrial ethernet

A real-time control system, Ethernet technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problem of information response time not having certainty and repeatability, and achieve the effect of improving reliability

Active Publication Date: 2007-04-25
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Suitable for transferring large data blocks, but the message response time is not highly deterministic and repeatable

Method used

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  • Embedded real-time control system of industrial ethernet
  • Embedded real-time control system of industrial ethernet
  • Embedded real-time control system of industrial ethernet

Examples

Experimental program
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Embodiment Construction

[0015] As shown in FIG. 1 , the specific embodiment of the control system of the present invention adopts a 6U-sized control cabinet based on the VME bus. The control boards include CPU boards, shared memory boards, profibus boards, etc. The CPU boards use two x86 series single-board computers and run the vxWorks operating system in parallel. Each CPU control board has the same architecture and functions. It forms a complete embedded control system with other functional boards, and they are mutually backed up to improve the reliability of the control system.

[0016] As shown in Fig. 2, the two CPU control boards A and B of the real-time control system of the present invention, which are mutually backup, store the control information through the shared memory board and perform synchronization. It and the host computers 1 and 2 of the central control system are dual IP, and each host computer is cross-connected to two CPU control boards A and B through a switch. Set as the mai...

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Abstract

This invention relates to a industry Ethernet imbed real time control system, which comprises two pieces of CPU boards with same frame and function through two network gates and central control system communication to accept orders and feedback information; wherein, when there is fault, message is rapidly switched into redundant channel without impact on work to re-establish connection; two boards are connected to vxWorks operation system to realize communications between boards to test CPU board to judge whether or not normal to trigger CPU and switch between main and assistant without gap.

Description

technical field [0001] The invention relates to industrial Ethernet communication, in particular to an embedded real-time control system of industrial Ethernet. Background technique [0002] vxWorks is an embedded real-time operating system widely used in communication, military, aviation, transportation and other fields. It has high real-time and reliability. [0003] The VME bus is a bus standard launched by Motorola, and it is an industrial bus standard formed by combining with the European board electrical specification. Parallel processing of multiple CPU boards, excellent interrupt processing mechanism, high-speed real-time response capability, and strong earthquake resistance of the template structure. [0004] Industrial Ethernet is a local area network technology that applies Ethernet to industrial control and management. It is suitable for transmitting large data blocks, but its message response time does not have high determinism and repeatability. Contents o...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 刘洪池葛琼璇张树田
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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