Architecture of BIoT

Directly using public blockchain in IoT, such as Bitcoin or Ethereum, is very expensive and inefficient. The IoT end-devices need to implement complex consensus algorithms, while all the data on chain are open to the public. In normal IoT system, the end-devices are only responsible for data sensing and uploading. To keep as long lifetime as possible, the end-devices need to be simple, and the operations must not consume too much resources and energy.