Research on the Architecture of Cloud GNSS Based on Hadoop

According to the challenges of storage and computation faced by massive, multi-source and heterogeneous GNSS data, the design objective of cloud GNSS is analyzed, then the architecture of cloud GNSS from infrastructure, data management, service management to application is designed, the deployment model including service management platform, Web server cluster and multiple Hadoop clusters is provided, and its’ characteristics such as strong expansibility, high reliability, loose coupling, are summarized. Cloud GNSS platform is built in the experiment, the storage model of massive GNSS data and the parallel computing model of GNSS network are built, distributed storage, parallel retrieval, sub-network division distributed computing and data publication are achieved. The result shows that the architecture proposed by the paper can be applied in the storage, processing and service publication of large-scale GNSS network.