对MOPA中流的判别问题进行了探讨。首先对流判别时所应考虑的各种因素进行归纳 ,然后提出了基于Hopfield神经网络的判别方法。实验表明 ,该方法可有效地考虑流和ATM网络两方面的因素 ,最终结果令人满意。 The problem of discriminating MOPA middle stream is discussed. Firstly, the various factors that should be considered in the determination of convection are summed up, and then the discriminant method based on Hopfield neural network is proposed. Experiments show that this method can effectively consider both the flow and ATM network factors, the final result is satisfactory.