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Method for improving data transmission reliability in wireless mesh network and network system

A technology of wireless mesh network and data transmission, which is applied in the direction of digital transmission system, transmission system, network topology, etc., can solve the problem of Mesh network unable to transmit data, and achieve the effect of improving reliability

Pending Publication Date: 2020-11-13
HANGZHOU EZVIZ SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the existing Mesh network, an MPP node is usually connected to the external network, which leads to the fact that once the MPP node fails, the Mesh network where the MPP node is located will not be able to perform data transmission with the external network

Method used

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  • Method for improving data transmission reliability in wireless mesh network and network system
  • Method for improving data transmission reliability in wireless mesh network and network system
  • Method for improving data transmission reliability in wireless mesh network and network system

Examples

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Embodiment 1

[0065] In this embodiment, the switch is initiated by the MPP management node, that is, the MPP management node finds that its own network index is deteriorating or that there is an MPP node with better network index and triggers the switch to the target MPP node. For example, the MPP management node sends its external network Abnormal interruption or finding that there is an MPP node with better bandwidth and network conditions in the network, and then switch to the destination MPP node with better external network conditions. The above switching can be understood as active switching. For the convenience of description, the MPP management node that initiates the handover is called the first MPP management node, and the MPP management node that the target MPP node serves as is called the second MPP management node.

[0066] see Figure 4 as shown, Figure 4 It is a schematic flow chart of the active switching of the MPP management node in this embodiment. The switching meth...

Embodiment 2

[0085] In this embodiment, the switchover is automatically triggered when the MPP management node is offline, that is, when the MPP management node in the network is offline due to an abnormality (for example, the device is powered off), a passive switchover is triggered.

[0086] see Image 6 as shown, Image 6 It is a schematic flowchart of the passive switching of the MPP management node in this embodiment. Before switching, the first MPP management node has sent the node information and sorting results to all MPP nodes and MAP nodes. The switching method includes,

[0087] Step 601, when the MAP node and the MPP node except the management node find that the heartbeat with the MPP management node is unreachable, the MPP node and the MAP select an MPP with the best network index as the destination MPP node according to the network index sorting result,

[0088] Step 602, each MPP judges whether the destination MPP node is itself,

[0089] If the MPP finds that the select...

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Abstract

The invention discloses a method for improving data transmission reliability in a wireless mesh network. The wireless mesh network Mesh comprises more than two mesh entrance access nodes MPP accessedto an external network, wherein one MPP node is a first MPP management node. The method includes the steps of: any Mesh access node (MAP) supporting AP function is accessed to the node MAP: a switching command from a first MPP management node is received, the switching command carries information of a destination MPP node to be switched, the destination address of the received data stream of whichthe destination address is the first MPP management node is modified into the destination MPP node according to the information of the destination MPP node carried in the switching command, and the data stream is transmitted based on the modified destination address. In the Mesh network with multiple outlets, active switching and passive switching are provided, and the reliability of data transmission is improved.

Description

technical field [0001] The invention relates to the field of wireless mesh network Mesh, in particular to a method for improving the reliability of data transmission in the wireless mesh network. Background technique [0002] Mesh network, that is, "wireless mesh network", is a "multi-hop" network developed from an ad-hoc network. Each node in the ad-hoc network is mobile, and can dynamically maintain connection with other nodes in any way. In the process of network evolution, wireless network is an indispensable technology. Wireless Mesh can communicate with other networks to form a dynamic and continuously expandable network architecture, and wireless interconnection can be maintained between any two devices. . [0003] see figure 1 as shown, figure 1 It is a schematic diagram of the existing Mesh networking. The network includes a Mesh entry node (MPP, Mesh Portal Point), a Mesh node (MP, Mesh Point), and a Mesh access MAP node (MAP, Mesh Access Point) supporting the...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W84/18H04L12/24
CPCH04W24/04H04W84/18H04L41/0663
Inventor 金磊单志胜吴海丁吴倩倩凌伟金静阳
Owner HANGZHOU EZVIZ SOFTWARE CO LTD
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