BIM for Smart Engineering Centre
Jointly established by Cardiff University, Dalian University of Technology, China Communications Construction Company
Jointly established by Cardiff University, Dalian University of Technology, China Communications Construction Company

The combination of Blockchain and the Internet of Things (IoT) has appeared as one of the most exciting use cases for the technological era.  

The basic principle of the Internet of Things is that objects or devices can become smarter by being connected to the internet. Blockchain technology is based on the concept of a decentralized network that records and processes transactions transparently and securely.  It is a chain of blocks that contain time-stamped digital records which cannot be altered or deleted once added to the Blockchain. 

As the number of IoT devices increases, the number of interactions between the server and devices increases the cost.  That is the reason why current systems cannot support large IoT networks. Also, cloud servers are vulnerable to a single point of failure which means the failure at one point can affect the entire ecosystem. Therefore, using a peer-to-peer model instead of a client/server model can be the right solution that IoT industry needs today. With decentralization in place, storage needs and computation can be distributed across millions of IoT devices and central failure cannot have an impact on the whole network. 

Integrating the Blockchain in IoT devices can also reduce the costs of installing and managing servers for an IoT network.  Blockchain uses cryptographic algorithms which ensure the confidentiality and security of the data on the IoT network. 

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