WSAN energy supplementing method combining charging path and partial charging

Abstract

The invention discloses a WSAN energy supplementing method combining a charging path and partial charging. The method comprises the following steps: firstly, obtaining a shortest moving path of a mobile charging device (MC) for charging all sensor nodes in a network; approximating the actuator position to the sensor node position closest to the actuator position based on an approaching principle;secondly, enabling the MC to determine an initial charging path for the sensor and actuator request nodes in the service pool according to the shortest path sequence; for a node whose survivable timeis less than that of the node which can obtain the MC charging opportunity at the earliest time, inserting the node into a front appropriate position on the initial path, and if the node which cannotobtain the charging opportunity in time still exists on the adjusted charging path, further adjusting the charging upper limit of the node on the path. The method solves the problem of mobile energy supplement in the wireless sensor and actuator network, and is a method for effectively prolonging the life cycle of the wireless sensor and actuator network.

Description

technical field [0001] The invention relates to the field of wireless sensors and actuators of the Internet of Things, in particular to a WSAN energy replenishment method combining charging paths and partial charging. Background technique [0002] The wireless sensor actuator network is a new network model derived from the introduction of several actuator nodes on the basis of the wireless sensor network; it can not only perceive environmental information and process data, but also actively interact with the monitoring environment and perform corresponding tasks. However, wireless sensor and actuator networks, like wireless sensor networks, also face serious energy constraints. [0003] At present, the breakthrough of wireless charging technology provides a new major opportunity to solve the energy limitation problem of wireless sensor networks, and many fruitful results have emerged. However, the existing energy replenishment schemes do not consider the importance of actua...

AI Technical Summary

Problems solved by technology

If the previous research method is adopted, fully charging the actuator every time the MC runs may face the risk of increased sensor node failure rate

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