Multi-path routing judgment method for industrial wireless mesh network

A mesh network, industrial wireless technology, applied in wireless communication, electrical components, etc., can solve the problem of no on-site detection information and methods of controlling the transmission characteristics of instructions

Inactive Publication Date: 2012-12-05
WUHAN UNIV
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[0009] The above studies are all aimed at the transmission characteristics of general text or multimedia services, and

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  • Multi-path routing judgment method for industrial wireless mesh network
  • Multi-path routing judgment method for industrial wireless mesh network
  • Multi-path routing judgment method for industrial wireless mesh network

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[0071] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0072]The present invention first considers the constraints satisfied by the end-to-end transmission. This part is determined by the present invention by referring to the related research of the related theory of the network control system.

[0073] In a networked control system, the impact of the network environment usually includes: network bandwidth, transmission delay, data packet loss, multi-packet transmission, etc. These factors have a direct impact on the stability of a network-based control system. Since the object in the present invention is a wireless Mesh network, and is mainly aimed at building an application network environment based on the IEEE802.11 standard, the limitation of network bandwidth may not be considered; in addition, the present invention is mainly aimed at on-site detection and control applications, so Both ...

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Abstract

The invention discloses a multi-path routing judgment method for an industrial wireless mesh network. Three judging criteria are mainly taken into consideration: 1, constraint conditions required to be met during end-to-end transmission, based on control data which has requirements on timeliness and reliability of wireless Mesh network transmission; 2, a judging mechanism for judging the proper number of concurrent transmission paths between a source node and a target node under a given condition of wireless Mesh network topological structure; and 3, an evaluating criterion for evaluating the path attributes of an equivalent path on a logic formed by multiple concurrent paths between the source node and the target node. By the multi-path routing judgment method for the industrial wireless mesh network, a specific routing judgment method is provided for implementing a multipath concurrent routing mechanism in the wireless Mesh network, so that the timeliness and the reliability of the wireless Mesh network transmission can be improved easily.

Description

technical field [0001] The invention relates to the technical field of routing in wireless communication networks, in particular to a judging method for concurrent path selection in multi-path data transmission of an industrial wireless mesh network. Background technique [0002] Wireless Mesh Network (WMN), also known as Wireless Mesh Network, is based on wireless channels for network communication transmission. Due to the influence of fading, interference, multipath effect, blocking, etc., the wireless link often has a temporary increase in bit error rate or interruption [1]. This phenomenon sometimes lasts for a short time (tens of seconds), and sometimes lasts Long time (several minutes). The wireless network system will reduce the overall transmission performance of the network due to the instability of the wireless link, especially for some applications (such as industrial control networks) that have high requirements for transmission delay and reliability. Powerless...

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Application Information

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IPC IPC(8): H04W24/04H04W40/12
Inventor 杨剑峰徐俊李成义郭成城
Owner WUHAN UNIV
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