Load balancing method suitable for WIA-PA network

A load balancing and network technology, applied in the direction of network traffic/resource management, energy-saving ICT, advanced technology, etc., can solve the problems of inaccurate and reliable transmission of wireless information, communication congestion, etc., to avoid uneven energy consumption and ensure reliable transmission , to ensure the effect of rationality

Active Publication Date: 2014-04-16
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] However, in practical applications, because wireless nodes consume energy evenly, the communication betw

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  • Load balancing method suitable for WIA-PA network
  • Load balancing method suitable for WIA-PA network
  • Load balancing method suitable for WIA-PA network

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[0025] The present invention will be further described in detail below with reference to the drawings and specific examples.

[0026] figure 1 It is a schematic diagram of the WIA-PA wireless network structure. The WIA-PA wireless network of the present invention includes a network manager, at least one gateway, and several wireless nodes. The gateway and wireless nodes form the underlying wireless network of WIA-PA and are responsible for information collection and centralized transmission. The network manager is responsible for analyzing and sorting out the WIA-PA underlying network data received from the gateway, and controlling the operation of the entire underlying network.

[0027] The reasons for the changes in the network topology include the joining of wireless nodes during the networking process and load changes caused by interference, device operating conditions, or changes in the location of wireless nodes. figure 2 It is the overall flowchart of the operation steps o...

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Abstract

The invention provides a load balancing method suitable for a WIA-PA network. When a network topology changes, all the nodes report the load information of all the neighbor nodes in the communication range to a network manager, the network manager compares the loads of all the wireless nodes, if the load capacity difference value between the node with the largest load and the node with the smallest load is larger than a preset threshold value, the network manager starts a load balancing adjustment process, namely a balance object list is created, and the network manager controls the wireless nodes in the network to transmit the loads until the load balancing conditions of the entire WIA-PA network are met. By means of the load balancing method suitable for the WIA-PA network, on the premise that the reliable communication among the wireless nodes is guaranteed, the load balance when a router in the network changes is achieved, uneven energy consumption of the wireless nodes is avoided, communication blockage among the nodes in the network is controlled, and reliable transmission of wireless information is guaranteed.

Description

technical field [0001] The invention relates to the industrial wireless sensor network technology in the communication field, in particular to a load balancing method applicable to the WIA-PA network. Background technique [0002] With the development of wireless communication technology, industrial wireless sensor network technology is gradually being applied to industrial sites. The introduction of industrial wireless sensor network technology solves the problems of difficult industrial field wiring and high installation and maintenance costs. With its low power consumption and low cost, industrial wireless sensor network has become another development trend in the field of industrial automation. It has become an urgent need to establish a wireless sensor network with high reliability in the industrial environment. [0003] Industrial wireless network WIA-PA technology (Wireless Networks for Industrial Automation-Process Automation, wireless network for industrial proces...

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Application Information

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IPC IPC(8): H04W28/08
CPCY02B60/50Y02D30/70
Inventor 李德威曾鹏肖金超
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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