With the advancement of digital twin in different fields,the traditional digital baseplate can no longer meet the more intelligent needs of spatio-temporal reduction and deduction.In this paper,the concept of spatio-temporal semantic digital baseplate(STSDB)is proposed,and its overall architecture and each module function are illustrated with a real scenario of logistics.Driven by data and knowledge,the data-driven portrait and spatio-tempord semantic?knonledge groph are constructed,and the key technologies such as address segmentation and fusion and spatio-temporal semantic knowledge graph are analyzed.Finally,this paper briefly introduces the application of STSDB in smart logistics,and shows its abilities of spatio-temporal restoration and spatio-temporal deduction.
spatio-temporal semanticknowledge graphdigital baseplatedigital twinspatio-temporal deductionlogistics field