The engine of data channel is DMA controller. We make use of the Chain ModeDMA strategy, and enhance the bandwidth performance of data.
DMA控制器是数据通道的引擎，这里我们采用了链式DMA的策略，大幅度地提高了硬件传输的带宽。
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Finally, this paper presents an improved model of the magnetic chain, using a single neural network PID controller to adjust the stator flux, and set up the corresponding flux estimation model.
Aiming at the volatility of demand in the supply chain, the feedback controller was used to maintain product inventory of each node, so that the supply chain reached stabilization.