运用snmp协议编程，迅速查找所在子网及相邻子网的网络拓扑结构，采用优化算法，速度快-use snmp programming agreement quickly identify where subnetworks and the adjacent subnet the network topology, using optimization algorithms, faster

针对基于粒子群优化算法的粒子滤波精度不高，容易陷入局部最优，难以满足目标跟踪的问题-For particle swarm optimization algorithm based on particle filter accuracy is not high, easy to fall into local optimum, it is difficult to meet the target tracking problem