With the progress in industry architecture and complexity in the adaption of IoT system networks, the centralization of IoT networks becomes more expensive for the maintenance of cloud-based infrastructure. Most of the IoT devices installed in the physical world are to measure and connect to other tangible devices. Because of the constraints like measuring, computation, storage, and internet bandwidth, IoT devices have limitations in providing ownership and data privacy. To address these challenges, Integrating blockchain with IoT systems offer peer to peer networks integrated with cryptographic processes which can offer many new features that improve the existing IoT systems. A blockchain-based IoT device provides triple-layered integrated system networks, that provide immutable transmission of variable data between two parties. As blockchain is built in a redistributed system, it provides more scalable security systems and prevents rogue networks.
The blockchain-based IoT architecture uses blockchain as distributed from a ledger to record all the transactions of an IoT system. How blockchain uses IoT? The architecture of blockchain in IoT system has three different layers, the local IoT network, blockchain overlay IoT network and cloud infrastructure network. To flawlessly connect these three layers, the architectural design has two connectors- blockchain connector and cloud connectors. The blockchain connectors connect information to various blocks in the hierarchical model and the cloud connector detects the disconnection and resolves issues between the cloud and overlay networks in the blocks. The distributed architectural design of IoT has the following advantages for large IoT systems in an enterprise.
– Blockchain prevents the forging or modification of data by tracking the measurements of data transmitted through the IoT system.
– Track and Trace: Digital information stored in an IoT system can enable the location shipment and the circumstance for the occurrence of shipment. Automatically an IoT component data can trigger insurance claim or freight settlement based on the agreement signed. It helps reduce extra costs in supply chain and logistics system.
– Network integrity: IoT network integrating Blockchain can monitor the physical network components and critical networks. This guarantees the verification of data and manufacturing components, which is useful for predictive maintenance model.
– Blockchain removes technical bottlenecks and inefficiencies in peer to peer communications, individual identity, and data integrity via smart connect.
– Peer to peer communication: It enables the interaction between two or more internet participants for safe communication through different devices. It creates transparency of data regarding sales processes, production consumption, inventory storage by transmitting information through digital twins without human interventions.
– The configuration of IoT enabled devices is a complex task for seamless transmission of information where Blockchain can be adapted for an IoT device to identify, authenticate, and secure data transfer.
– Digital Lineage: By adding crypto hardware to the products, its network can detect the value of the product in the secondary product by providing value to various antique products ranging from art galleries to spare parts of the cars.
Industrial examples of IoT networks powered with Blockchain
- 1. Smart manufacturing: With the up-gradation in technology, the manufacturers are looking to smart manufacturing. Massive datasets are collected during the product life cycle and manufacturing cycle. These fragmented datasets are complicated to perform data accumulation and data analytics. The blockchain can interconnect the IoT systems for internal communications between different machines connected through peer to peer blockchain network.
- 2. Supply chain management: Implementing blockchain-powered IoT systems, suppliers and manufacturers can prevent the installation of damaged/ fraud parts in a product. With multiple suppliers supplying various parts of a single product, there is a chance of installation of faulty parts, as it is hard to apply fraud detection tech for every part. In the case of a faulty product, the IoT device can track the place from where the part has been supplied.
- 3. Healthcare: Healthcare is one of the socio-economic problems due to an increase in the world population. With blockchain, integrated IoT services provide an advantage over the limitation of health resources by providing virtual assistance of doctors accessible to every patient through an internet-enabled device.
- 4. Internet of vehicles: It defines vehicle-to-vehicle network, vehicle to roadside networks, vehicle-infrastructure network, vehicle to pedestrian networks. Due to heterogeneity, decentralization and not trustworthy, the security of transmission of communication and transaction is a main issue in the Internet of vehicles. Blockchain can provide a solution to these limitations.
- The recent appearance of blockchain technologies has addressed few enterprise problems in the incumbent of IoT like- interoperability, trust, security, heterogeneity, traceability, and reliability. In this article, we discussed how integration of blockchain in IoT can help up-gradation of its architecture, advantages, and opportunities for various industries like healthcare, manufacturing, automobile, etc. moreover the fully controlled blockchain also fulfills industry requirements for strategic systems like ERP, MES, PLM, and CRM.
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