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The method for supporting the mobile Zifeng radio sensor network system and node mobility

A coordinator node, Zigbee technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as network paralysis, mobile nodes cannot join the network, full-featured node device memory is full, etc., to achieve Effects of mobility, increased capacity and flexibility

Inactive Publication Date: 2007-08-15
UNIV OF SCI & TECH BEIJING
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  • Summary
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AI Technical Summary

Problems solved by technology

If there are a large number of mobile nodes, it is easy to make the memory of the full-function node device full, so that other mobile nodes cannot join the network, and even cause the network to be paralyzed

Method used

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  • The method for supporting the mobile Zifeng radio sensor network system and node mobility

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Experimental program
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Embodiment Construction

[0012] Figure 1 is a schematic diagram of the system of the Zigbee network. The movable terminal node consists of a movable terminal node, a Zigbee routing node with a known location, and a coordinator node of the Zigbee network.

[0013] When the network adjacency table is almost full, if another reduced-function node device joins, after the addition succeeds, the full-function node device starts the dynamic management process of the adjacency table. First, the full-function node establishes a state table, which includes the sequence number of the reduced-function node device in the current adjacency table in the adjacency table, and an identifier indicating whether the corresponding reduced-function node device is in the network. Then the full-function node broadcasts a message asking each reduced-function node device, and only the reduced-function node device associated with it can receive the message. After receiving the message, the reduced-function node device immediatel...

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Abstract

The mobile ZigBee wireless sensor network system comprises: a mobile terminal node, a known-position ZigBee route node, and a coordinator node of ZigBee network. Wherein, the coordinator node initiates to form a self-networking ZigBee network, the mobile node accesses into the network through near ZigBee route node or coordinator node, and every fullfunctional node adds connected device information into adjacency list. This invention adds dynamic management function for adjacency list, benefit to update excessive mobile nodes in limited memory, and improves capacity and flexibility for ZigBee network.

Description

technical field [0001] The invention belongs to the fields of data collection of mobility equipment and management of mobile personnel, and in particular provides a method for supporting a mobility Zigbee wireless sensor network system and node mobility. Background technique [0002] Zigbee is a wireless network communication technology standard that has only emerged in recent years. Wireless networking communication is a hot spot in the technological development of industrial control, computer application, home automation, etc., and the low power consumption and low-cost wireless network requirements make Zigbee come into being; Zigbee has super vitality and advantages, The application prospect is very promising. According to the current protocol announced by the Zigbee Alliance, the Zigbee network adopts the form of an ad hoc network. [0003] The specification of the ZigBee Alliance (ZigBee Alliance, ZigBee Specification version 1.0, June 27, 2005) prioritizes the power...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L12/24
Inventor 周贤伟杨裕亮王丽娜杨文星李杰张明东
Owner UNIV OF SCI & TECH BEIJING
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