Lamp control node time synchronization method and system based on Internet of Things

The invention discloses a lamp control node time synchronization method and system based on the Internet of Things, and relates to the technical field of illumination control, and the method comprises the steps: generating a lamp control instruction through a landscape illumination control terminal; obtaining to-be-controlled node information according to the lamp control instruction; performing initiating node analysis on the to-be-controlled node information, and determining a lamp control initiating node; traversing other nodes in the to-be-controlled node information according to the lamp control initiating node, and judging whether the correction node is synchronized for the first time or not; if the synchronization is the first time, performing correction synchronization on the correction node based on an RBS algorithm to obtain a synchronization time result; when the synchronization is not the first time, storing a synchronization time error and solving an error average value; and performing time compe