Method for achieving dual-network hot standby redundancy of blank pipe automatic system

The invention discloses a method for achieving dual-network hot standby redundancy of a blank pipe automatic system. The method comprises the steps of establishing network hardware connecting topology, establishing network state monitoring process in an application layer of a control procedure of each machine, establishing a working net switching control procedure in a network monitoring procedure of each machine, establishing a redundancy sending operation procedure at the data sending end of each machine, establishing a data filtering control procedure at the receiving end of each machine, establishing a network state monitoring terminal and the like. The method has the advantages that a distributed network monitoring mechanism is adopted, the network state is monitored in real time, and the automatic switching speed of a network is high; two three-layer exchangers are in cascade connection so that when one of the networks of each machine is normal, communication between the two sides can be conducted and t