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A control frame precompression method based on as6802 protocol

A control frame and pre-compression technology, applied in the field of communication, can solve the problems of not taking into account the simultaneous solidification of multiple solidification points of a single port, the system not counting member vectors, and the inability to apply synchronous clients, so as to improve flexibility and reliability. The effect of scalability, optimization of internal logic structure, and high security

Active Publication Date: 2020-12-01
成都光航信科技有限公司
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Problems solved by technology

This method has the following disadvantages: 1) it does not take into account the fact that there are multiple solidification points in a single port; CM) connection, but cannot be applied to the synchronization client (Synchronization Client, SC), so the system flexibility is insufficient; 3) The correct solidification point may be discarded during the pre-integration process, resulting in the system not counting the complete member vector , thus jumping to the asynchronous state

Method used

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  • A control frame precompression method based on as6802 protocol
  • A control frame precompression method based on as6802 protocol
  • A control frame precompression method based on as6802 protocol

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Embodiment 1

[0051] refer to figure 1 As shown, the embodiment of the present invention provides a control frame pre-compression method based on the AS6802 protocol, comprising the following steps:

[0052] S101. The current device obtains the PCF frame from the Ethernet frame sent by other devices in the network;

[0053] S102. Analyze the PCF frame, and preprocess the PCF frame based on the source address field, member vector field, synchronization domain field and type field extracted from the PCF frame, to obtain a preprocessed PCF frame;

[0054] S103. Using a parallel curing algorithm on the preprocessed PCF frame to obtain multiple curing points that are cured simultaneously;

[0055] S104. Perform a pre-compression operation on multiple curing points of a single port to obtain an optimal curing point;

[0056] S105. Perform pre-compression calculation on the optimal solidification points extracted from all ports again to obtain a final solidification point, and send the final sol...

Embodiment 2

[0083] Embodiment 2 of the present invention is mainly based on a transceiver device in the TTE network to realize the pre-compression process of the control frame. In a practicable manner, the device is a switch in the TTE network, and the switch has four receiving ports with port numbers 0-3 respectively. The switch in the embodiment of the present invention can perform parallel solidification and two pre-compression processing on the protocol control frame PCF frame sent by the terminal equipment to realize parallel data serialization, and finally send the serial data to the compression function mapping module.

[0084] refer to Figure 5 In Embodiment 2 of the present invention, the implementation steps of pre-compressing the protocol control frame PCF frame sent by the terminal device are as follows:

[0085] Step 1. The Pcf_receiver module of the four ports of the four-port switch will filter out the protocol control frame PCF frame sent by the terminal device.

[0086...

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Abstract

The invention discloses a control frame pre-compression method based on an AS6802 protocol, and relates to the technical field of communication, and the method comprises the following steps: obtaininga PCF frame from Ethernet frames sent from other equipment in a network by current equipment; analyzing the PCF frame, and preprocessing the PCF frame based on a source address field, a member vectorfield, a synchronization domain field and a type field extracted from the PCF frame to obtain a preprocessed PCF frame; adopting a parallel curing algorithm for the preprocessed PCF frame to obtain aplurality of curing points which are cured at the same time; carrying out pre-compression operation on a plurality of curing points of a single port to obtain the optimal curing point; and performingpre-compression operation on the optimal curing points of all the ports again to obtain a final curing point, and sending the final curing point to the compression function mapping module. Accordingto the method, the problem that correct curing points are omitted during pre-compression of multiple curing points is solved, the flexibility, expandability and error-tolerant rate of a protocol system are improved, and the protocol system has good compatibility with all TTE devices.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an AS6802 protocol-based control frame precompression method. Background technique [0002] In recent years, distributed networks have been widely used in industrial systems. Each device in the system communicates through a specific network, which requires the network to have good indicators in terms of real-time data, delay, bandwidth, fault tolerance, and conflict rates. . Traditional Ethernet (Ethernet) is widely used because of its high bandwidth, high flexibility and low cost. Time Triggered Ethernet (TTE), derived from Ethernet, not only inherits the above-mentioned advantages of traditional Ethernet, but also makes up for the real-time performance, low delay, fault tolerance and It has better application prospects because of the lack of conflict. [0003] The AS6802 protocol is a kind of TTE network protocol. Compared with the IEEE1588 protocol of the traditional ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/126H04L69/04H04L69/22H04L69/26
Inventor 张金国谢军涂晓东孟中楼陈昌祯王阳硕
Owner 成都光航信科技有限公司
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