Real-time communication optimizing method and equipment orienting to cyber-physical system

An optimization method and a technology of physical fusion, applied in the transmission system, data exchange through path configuration, electrical components, etc., can solve the problems of not forming a closed loop, collision phenomenon, etc., to improve performance, improve GTS distribution performance, and improve Effect of GTS Utilization

Active Publication Date: 2011-06-22
海安汇珏网络通信设备有限公司
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Problems solved by technology

In addition, the application of the current GTS mechanism is mostly studied in the star topology, while in the network application of the tree topology, due to the particularity of the topology, the topology is an extension of the bus structure. It is formed by adding br...

Method used

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  • Real-time communication optimizing method and equipment orienting to cyber-physical system
  • Real-time communication optimizing method and equipment orienting to cyber-physical system
  • Real-time communication optimizing method and equipment orienting to cyber-physical system

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Embodiment Construction

[0082] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0083] figure 1 The workflow of the superframe mechanism for node devices includes the following steps:

[0084] Step 101: within a superframe duration, the node device first receives the beacon frame broadcast by the coordinator, and enters the CAP phase after completing device association with the coordinator node.

[0085] Step 102: Judging whether the CAP phase of the superframe is over, if it is over, then go to step 106; otherwise, go to step 103 to judge the state of the data to be sent in the cache area of ​​the node device.

[0086] Step 103: Determine whether there is data waiting to be sent in the buffer area of ​​the node device, if so, then proceed to step 104, compete for the use of the channel under the CSMA / CA mechanism, and then enter the frame priority setting module; otherwise, proceed to step 105 , to enter idle mode.

[0087] St...

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Abstract

The invention relates to a real-time communication optimizing method and equipment orienting to a cyber-physical system. The method comprises the following steps of: reading a beacon frame and entering a CAP (Contention Access Period); judging whether the CAP of a superframe is finished or not; judging whether a node equipment cache region has data ready to transmit or not; setting frame priority; when no data needs to be transmitted in the cache region, turning to the idle mode; after the CAP is finished, entering a CFP (Contention Free Period) of the superframe; switching the node equipment into GTS (Guarantee Time Slot) allocation with collision avoidance; judging whether data transmission is successful or not; leading a node to enter a dormancy period and wait for the next superframe; and transmitting alarm information to a coordinator by the node and informing a message of transmission failure. The equipment comprises a frame priority setting module and a collision avoidance allocating module. The invention improves the expression performance of a GTS mechanism again by solving the problem of collision, finally improves the utilization ratio of GTS and meets the application with higher real-time requirement.

Description

technical field [0001] The present invention relates to a technology related to a time slot guarantee mechanism for information acquisition and real-time communication in an information-physical fusion system, especially for a time slot guarantee mechanism for sensor node communication in an information-physical fusion system with high implementation requirements ( GTS) time slot performance optimization method and device. Background technique [0002] With the State Council (2010) No. 32 Document "The Decision of the State Council on Accelerating the Cultivation and Development of Strategic Emerging Industries", the new generation of information technology industries such as the Internet of Things are listed as national strategic emerging industries, and there are more and more information-physical fusion systems be applied to social production and life. On the one hand, the application of information-physical fusion system can improve economic benefits and greatly save co...

Claims

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Application Information

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IPC IPC(8): H04L12/44H04L29/08
Inventor 丁晓峰徐立中陈功樊棠怀王慧斌严锡君
Owner 海安汇珏网络通信设备有限公司
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