Object tracking method and object tracking device

An object tracking device, comprising:

• a storage;
• and
• a processor, which is coupled to the storage;
• wherein the storage is configured to store computer executable instructions, which when executed by the processor, cause the processor to perform operations of:
• receiving an object tracking request and characteristic information of an object to be tracked sent from an object management server;
• determining a search area indicating a potential position area of the object based on the received characteristic information and establishing a search terminal group within the search area, the search terminal group comprising one or more search terminals located within the search area;
• performing an object position information acquisition process thereby acquiring object position information indicating a position of the object from object information sent from the search terminal in the search terminal group;
• and
• determining a trace of the object based on the acquired object position information.