Method for dynamically adjusting topology update period of wireless sensor network
A wireless sensor and network topology technology, applied in network topology, wireless communication, electrical components, etc., can solve problems such as network congestion of routing announcement information, untimely topology update, and failure to take into account accidental changes in the environment, reducing network jitter, Speed up topology construction, speed up the effect of construction
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[0021] In the RPL routing protocol, the route announcement message sending module will be called in three situations: in the topology establishment phase, the route announcement message is used to establish the topology; the periodic route announcement message is sent for network maintenance; in the case of local repair, to obtain the route announcement After requesting information, respond.
[0022] Such as figure 2 As shown, the DIO in the figure is a routing announcement information packet. The present invention introduces a consistent information redundancy parameter and a non-uniform redundancy parameter to dynamically adjust the sending cycle of routing announcement information, speed up topology construction, and reduce routing switching caused by network jitter. . Dynamically adjust the WSN (Wireless Sensor Network) topology update period, including the following steps: when each terminal node of the WSN is turned on, the time slot for initially sending the route ann...
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