Data query method and device

The invention provides a data query method and device.The data query method comprises the steps that illumination data of at least one block within a set range is obtained according to initial coordinates of a target object, the block comprises at least one illumination probe arranged at equal intervals, and the illumination probes are used for collecting the illumination data; filling the illumination data of at least one block into an illumination probe in a query carrier; current coordinates of a to-be-queried object are obtained, a corresponding target illumination probe is determined from the query carrier according to the current coordinates, and the to-be-queried object is an object in a set range; and determining current illumination data of the to-be-queried object based on the target illumination data on the target illumination probe. The current illumination data of the to-be-queried object in the set range is obtained from the illumination data of the at least one block filled in the query carrier