Redundancy management circuit and management method thereof
A technology of redundancy management and management method, applied in the direction of electrical components, digital transmission systems, and error prevention, etc., can solve the problems that Ethernet cannot meet the requirements of occasions with high reliability requirements, and achieve high reliability and improve reliability Effect
Active Publication Date: 2010-07-07
中国航空工业第一集团公司第六三一研究所
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[0004] The purpose of the present invention is to provide a redundancy management circuit and its management method that can meet high reliability requirements, which solves the technical problem that the Ethernet in the prior art cannot meet the requirements in occasions with high reliability requirements
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[0030] The application environment of the redundancy management circuit of the present invention is as follows figure 1 shown. The redundancy management circuit is on the network terminal, and is respectively connected to a mutual backup switch through two network interfaces to form a redundancy network.
[0031] The invention of the method is realized through two stages of sending and receiving respectively, see figure 2 and image 3 .
[0032] 1. For the sending process, see image 3 :
[0033] The registers related to sending and receiving in the control register include: queue head pointer register, queue tail pointer register, sending control register and receiving control register. The sending buffer memory adopts a dual-port memory, which is used to store data frames to be sent, and is organized in the form of a ring queue. The host controls the tail pointer, and the redundancy sending circuit controls the head pointer.
[0034] When sending, the host is respons...
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The invention relates to a redundancy management circuit and a management method thereof, which solves the technical problems that an Ethernet network in the prior art can not meet the occasion requirement which has high reliability; the redundancy management circuit comprises a control register, a send buffer memory, a redundancy transmission circuit, a redundancy receiving circuit, a receiving buffer memory and a receiving label FIFO, wherein the redundancy management circuit further comprises a queue head pointer register, a queue tail pointer register, a receiving control register and a transmission control register; the control register and the transmission buffer register are respectively connected with the redundancy transmission circuit, and the receiving buffer memory and the receiving label FIFO are respectively connected with the redundancy receiving circuit; the invention can meet high reliability requirements.
Description
technical field [0001] The invention relates to a redundancy management circuit and a management method thereof. Background technique [0002] Ethernet technology has the characteristics of low cost and versatility, and it is gradually applied to some real-time control fields to replace the original dedicated network. [0003] Ethernet itself has high reliability, and its communication bit error rate is 10 -10 . However, in occasions with high reliability requirements, or in harsh environments, or communication failures caused by transmission errors, partial equipment failures, and network connection failures, the system will also be unreliable. Therefore, in some specific occasions, it is necessary to further improve the reliability of the network. Contents of the invention [0004] The purpose of the present invention is to provide a redundancy management circuit and its management method that can meet high reliability requirements, which solves the technical problem ...
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Inventor 陈长胜王红春
Owner 中国航空工业第一集团公司第六三一研究所