Network switching method and system for deploy and control ball

The invention belongs to the field of deploy and control balls, and the method comprises the following steps: installing a communication card supporting a multi-operator network on a deploy and control ball, monitoring and comparing network signal intensity, selecting an optimal network as an alternative, periodically detecting a signal state for effective switching and recording, and finally evaluating feedback to optimize a switching strategy. According to the invention, through the communication card supporting three major operator networks of Mobile, Unicom and Telecom, automatic switching to other networks is realized when a single network signal is unstable, video monitoring continuity and definition are guaranteed, the method can be suitable for scenes with many electric power operation points and a wide range, remote video monitoring is realized, operation safety is ensured, and the method is suitable for popularization and application. By using one communication card, the management complexity and co