Blending agent access control method capable of facing wireless industrial network

An industrial wireless network and mixed medium technology, applied in the field of mixed medium access control for industrial wireless networks, can solve problems such as lack of flexibility and real-time performance, and achieve improved flexibility and scalability, low energy consumption, and low energy consumption. Effect

Inactive Publication Date: 2010-06-23
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In view of the defects of lack of flexibility and poor real-time performance in the medium access control method in the prior art, the technical probl

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  • Blending agent access control method capable of facing wireless industrial network
  • Blending agent access control method capable of facing wireless industrial network
  • Blending agent access control method capable of facing wireless industrial network

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Experimental program
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Embodiment Construction

[0045] The inventive method comprises the following steps:

[0046] Build various devices in the industrial wireless network into a mesh and star hybrid topology;

[0047] On the basis of the hybrid topology, define a structured superframe;

[0048] For the above-mentioned mesh and star hybrid topology and superframe structure, the communication resources are scheduled in two stages from the gateway to the routing device and from the routing device to the field device;

[0049] For the superframe structure and communication resource scheduling scheme defined above, a strategy combining fixed channels (good compatibility) and frequency hopping (increasing reliability) is used for communication.

[0050] The present invention adopts such as figure 1 The mesh and star (mesh+star) hybrid topology is shown, which has two layers:

[0051]The first layer is a mesh network, which is composed of routing device nodes, gateway device nodes and host computer; the routing device node co...

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Abstract

The invention relates to a blending agent access control method capable of facing wireless industrial network, comprising the following steps: building various kinds of equipment in the wireless industrial network into reticular and star-shaped mixed topology structure; on the basis of the mixed topology structure, defining structuring superframe; according to the above reticular and star-shaped mixed topology structure and the superframe structure, scheduling communication resources according to two stages characterized by being from a gateway to the route equipment and from the route equipment to the site equipment; according to the above defined superframe structure, adopting the strategy combining a fixed channel and frequency hopping to communicate. The invention adopts reticular and star-shaped mixed topology structure to simplify network structure, lower maintenance and management difficulty, improve system flexibility and improve network reliability, has favourable real-time and low energy consumption and improves network compatibility; on the other hand, adaptive channel allocation and frequency hopping improve the reliability of the network and improve the flexibility and the expandability of the network.

Description

technical field [0001] The invention relates to wireless communication technology, and is specifically described as a mixed medium access control method for industrial wireless networks. Background technique [0002] Compared with wired networks, wireless networks have the characteristics of no wiring, easy maintenance, high flexibility, and fast implementation, which is undoubtedly a huge advantage for industrial applications. With the maturity of wireless communication technology and the reduction of cost, wireless industrial network has become one of the trends. A typical industrial wireless measurement and control network is attached figure 1 As shown, a large number of wireless sensor or actuator nodes are distributed at various monitoring points in the industrial site. These nodes form a network with nodes with routing functions, and transmit the field monitoring data back to the gateway node in a multi-hop manner. While the wirelessization of industrial networks bri...

Claims

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Application Information

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IPC IPC(8): H04W84/18H04W16/30H04W72/12H04W72/04
CPCY02D30/70
Inventor 梁炜于海斌曾鹏张晓玲臧传治徐皑冬杨志家
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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