Interaction method and interaction apparatus

An interaction apparatus, applied to a server, the interaction apparatus comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
• receive first feature information and first local identification information of a traffic participant from a first roadside device, wherein the first feature information is for identifying the traffic participant, and the first local identification information indicates a first local identifier of the traffic participant on the first roadside device;
• and
• send first global identification information to the first roadside device based on the first feature information, wherein the first global identification information indicates a global identifier corresponding to the first local identifier.

An interaction apparatus, applied to a first roadside device, and the interaction apparatus comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
• obtain first feature information of a first traffic participant, wherein the first feature information is for identifying the first traffic participant;
• obtain trajectory information of the first traffic participant;
• receive second feature information and first global identification information of a second traffic participant from a second roadside device, wherein the second feature information is for identifying the second traffic participant, the first global identification information indicates a global identifier of the second traffic participant, and the second roadside device is located upstream in a moving direction of the first traffic participant relative to the first roadside device;
• compare the first feature information with the second feature information, to determine that the first traffic participant and the second traffic participant are a same traffic participant;
• and
• send a trajectory transfer message, wherein the trajectory transfer message comprises the trajectory information and the global identifier.