BSV-PAGS: Blockchain-based special vehicles priority access guarantee scheme

Abstract

Traffic jams often occur, with the increasing number of private cars. Special vehicles (e.g. police cars, ambulances and fire trucks) often encounter traffic jams when carrying out emergency tasks, which may lead to unexpected consequences (e.g. causing serious damage to our routine and property). In order to ensure that special vehicles can quickly pass through crowded road and arrive at the accident scene in time, this paper proposes a blockchain-based special vehicles priority access guarantee scheme (BSV-PAGS). In BSV-PAGS, we introduce blockchain into the Internet of Things (IoT), and construct a decentralized distributed edge node network based on blockchian, which guarantees the information sharing among the edge nodes as well as processing the data efficiently. The intelligent terminal device will upload the special vehicle information to the edge node in the blockchain, and then the uploaded information will sync to each edge node through the information sharing smart contract, realizing the information sharing among the edge nodes. In addition, we use machine learning method (e.g. Bag of Visual Words and Support Vector Machine) to design and train special vehicle detectors to improve the recognition accuracy of special vehicles. We design a special vehicle priority access smart contract to achieve real-time scheduling of vehicles and ultimately ensure the priority of special vehicles. Then, we carried out a security analysis of BSV-PAGS. Finally, we test a large number of simulation experiments based on Ethereum clients. The experimental results show that our scheme is feasible and effective.