Blockchain and smart contract for IoT enabled smart agriculture

TL;DR

This paper explores integrating blockchain, smart contracts, and IoT devices to automate and secure pre- and post-harvest agricultural processes, enhancing transparency, trust, and efficiency.

Contribution

It proposes a novel system combining blockchain, smart contracts, and IoT for agricultural data management, with implementation details and cost analysis.

Findings

Blockchain ensures data immutability and transparency.

The system reduces transaction costs and enhances trust.

Challenges and advantages of the integrated approach are discussed.

Abstract

The agricultural sector is still lagging behind from all other sectors in terms of using the newest technologies. For production, the latest machines are being introduced and adopted. However, pre-harvest and post-harvest processing are still done by following traditional methodologies while tracing, storing, and publishing agricultural data. As a result, farmers are not getting deserved payment, consumers are not getting enough information before buying their product, and intermediate person/processors are increasing retail prices. Using blockchain, smart contracts, and IoT devices, we can fully automate the process while establishing absolute trust among all these parties. In this research, we explored the different aspects of using blockchain and smart contracts with the integration of IoT devices in pre-harvesting and post-harvesting segments of agriculture. We proposed a system that uses blockchain as the backbone while IoT devices collect data from the field level, and smart contracts regulate the interaction among all these contributing parties. The system implementation has been shown in diagrams and with proper explanations. Gas costs of every operation have also been attached for a better understanding of the costs. We also analyzed the system in terms of challenges and advantages. The overall impact of this research was to show the immutable, available, transparent, and robustly secure characteristics of blockchain in the field of agriculture while also emphasizing the vigorous mechanism that the collaboration of blockchain, smart contract, and IoT presents.