Patent ID: 11874855
Assignee: COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A parallel data access method based on data stored by the method according to claim 1, comprising:
1) receiving, by the back-end data service, a reading and writing request of a client, and retrieving each data block related to the reading and writing in a metadata base according to the data identifier dataid in the reading and writing request and a spatial range to be read and written, each data block being provided with a grid number; wherein the reading and writing request parameters comprise the data identifier dataid, the spatial range, projection transformation and resampling information of target data;
2) performing, by the back-end data service, the projection transformation and the resampling on the retrieved remote-sensing image according to the parameters in the reading and writing request; and
3) cutting, by the back-end data service, the target data according to the spatial range in the reading and writing request, and finally returning the processing result to the client.