Node dual-mode sensing method and communication system

Abstract

The invention provides a node dual-mode sensing method and a communication system. The communication system comprises a center node and at least a layer of node layer surrounding the center node; themethod comprises the following steps: the center node sends sensing information to a target node in a node layer through dual-mode communication; the target node receives sensing information and performs the logic operation processing, and forwards the sensing information after the logic operation processing to the next layer of target node to repeatedly perform logic operation processing and forwarding of the sensing information until the sensing information is forwarded to the outer layer node; the outer layer node returns the sensing information after the logic operation processing to the center node one layer by one layer, the center node analyzes the returned sensing information so as to determine a node online state of the communication system. Therefore, the node sensing is performed through the dual-mode communication, the normal node in the wireless island region can be sensed, the sensing capacity to the intranet node by the center node can be effectively improved, and the working state of the intranet node can be comprehensively mastered.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a node dual-mode sensing method and a communication system. Background technique [0002] The wireless MESH network (wireless mesh network) is a multi-hop (multi-hop) network, developed from the Ad-Hoc (point-to-point mode) network. A multi-hop network consists of multiple nodes (for example, a node combination of a central node + multiple common nodes). [0003] When the networking is completed, the central node needs to sense the online status of common nodes, so as to manage and control common nodes in the entire communication system. In the prior art, the central node usually senses common nodes in the communication system by sending wireless sensing frames. The disadvantage of using wireless communication sensing is that due to the influence of various factors such as unsatisfactory wireless communication status, unreasonable base station location setting, an...

AI Technical Summary

Problems solved by technology

The disadvantage of using wireless communication sensing is that due to the influence of various factors such as unsatisfactory wireless communication status, unreasonable base station location setting, and unreasonable antenna inclination setting, wireless islands will appear in the wireless network. Nodes cannot receive wireless signals sent by other nodes

Therefore, the central node cannot perceive the common nodes in the wireless island area

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