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A wireless network path switching method

A path switching and routing technology, which is applied in wireless communication, electrical components, etc., can solve the problems that the path quality cannot be evaluated, the path cannot be determined, the fault point has been bypassed, and the fault point cannot be located. Reliable, easy maintenance results

Active Publication Date: 2015-09-02
SUPER TELECOM CO LTD
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  • Summary
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  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to solve the problem that the wireless routing algorithm in the prior art needs to dynamically obtain the path plus a backup path for switching, the quality of the path after switching cannot be evaluated, and the fault point cannot be located, and the path after switching cannot be determined to have bypassed the fault Point problem, provide a line network path switching method

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  • A wireless network path switching method
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  • A wireless network path switching method

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Concrete steps of the present invention are as follows:

[0027] 1. Path reliability collection, the wireless transmission process is compatible with the two mechanisms of single-hop retransmission and application retransmission to achieve the robustness of the transmission process; single-hop retransmission is when the sender does not receive the confirmation packet sent by the receiver. If it still fails, it will report a node failure information to the central node, so that the central node can clearly know the location of the failure, and the path error counter records the failure of the relationship between the child node and the parent node once; the application retransmission mechanism is that the sender sends Finally, there is no need to wait for the confirmation packet from the receiver. The task is over after the sending is c...

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Abstract

The invention discloses a path switching method of a wireless network. The method comprises the steps as follows: 1, path reliability collection: if a fault occurs in a transfer process, a path error counter records one fault of all father and child nodes in the path; and if communication is completed successfully, a path success counter records success times of all father and child relations by accumulating one; 2, reliable data zeroing: when success times or failure times are accumulated to a maximum value of the path error counter or the path success counter, a center node returns the smaller value to zero, and the larger value is changed to an absolute value of a difference between the success times and the failure times; and 3, node fault conversion: if the failure times increase fast and the difference between the success times and the failure times exceeds an error permit threshold value, the father node is shifted to a next father node, if the current father node is the last one, the current father node is shifted to a first father node, after the father node is shifted, the accumulating times of the success times and the failure times are required to return to zero.

Description

technical field [0001] The invention relates to a wireless communication technology, and in particular discloses a wireless network path switching method, which is applicable to wireless collection, wireless internet of things, smart home and wireless sensor networks. Background technique [0002] Wireless ad-hoc network (mobile ad-hoc network) is a multi-hop mobile peer-to-peer network composed of dozens to hundreds of nodes, using wireless communication, and dynamically networking. Its purpose is to transmit multimedia information streams with quality of service requirements through dynamic routing and mobility management techniques. Usually nodes have a continuous energy supply. [0003] Since the Adhoc network has many requirements such as node power saving, reduced bandwidth consumption, rapid topology changes, and adaptation to the one-way channel environment, the existing IP routing protocols, such as RIP (Routing Information Protocol) and OSPF (Open Shortest Path Fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W40/36
Inventor 孟繁鼎聂光义
Owner SUPER TELECOM CO LTD
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