一种移动充电器对无线传感器节点充电的调度模型

The limited energy of wireless sensor nodes is always the bottleneck of its stable operation. In order to ensure that the node has a stable energy supply, this paper uses wireless charging to supplement energy for the node. First, the linear programming method is used to define the scheduling problem of Wireless Charging Vehicle, and the time and space factors in the node charging process are comprehensively considered, and the improved gravity search algorithm is used to plan the service order of the nodes as needed. According to the planning of the node service sequence, a single Wireless Charging Vehicle is used to carry multiple detachable charging devices to concurrently serve the nodes in multiple locations. Finally, the proposed algorithm is simulated. The simulation results show that the proposed algorithm is significantly better than the existing FCFS algorithm, NJNP algorithm and classical gravity search algorithm in terms of charging delay.