Electric border gateway device and method for chaining and storage of sensing data based on the same
The present disclosure discloses an electric border gateway device which adopts the blockchain technology to implement communication authentication and data transmission encryption at the gateway. As a device for sinking and processing local information, the border gateway device may build not only a local blockchain network with a variety of local electric sensing terminal devices, but also a regional blockchain network with other border gateways and electric management platforms. As a critical node of these two types of blockchain, the border gateway may enable the authentication of identity legality between electric sensing terminal devices, the critical data storage in the blockchain ledger, the deployment and implementation of blockchain transaction by control and coordinated functions, and the safe and reliable data interaction. The present disclosure also discloses a method for chaining and storage of sensing data based on the electric border gateway device.
1. A method for chaining and storage of sensing data of an electric border gateway device, wherein, in a device of an electric sensing data blockchain, only the border gateway device is used as a master device for storing an aggregated electric sensing data ledger while other slave devices are involved only in the blockchain identity verification to verify the chaining application legality of the block, and adopt a PBFT consensus mechanism to synchronize the data to be chained into the electric sensing data blockchain, including steps of:
(i) after sorting and organizing the sensing data received from the chain, using the master device to generate a block, fill data into the block, add a signature and hash to the block, and broadcast the block to the electric sensing data blockchain network;
(ii) after receiving a new block from the master device, a slave device adds a block header contained in the block to a latest block ledger of its own to add a block record, performs a hash audit on the block, and broadcasts a verification result information to the electric sensing data blockchain if the resultant hash is consistent with that sent by the master device;
(iii) transmitting verification results to each device from a plurality of nodes while verifying the block broadcast by a master node, deeming the block to be valid after collecting messages confirming the correctness sent by nodes of more than half of all slave devices, and submitting the block to a locally owned ledger of the electric sensing data blockchain; such that, all slave devices have completed the ledger synchronization of electric sensing data.