IoT device location information storage system based on blockchain

摘要

In recent years, with the development of technologies such as the Internet, sensors and RFID, the application of the Internet of Things in various industries has deepened, resulting in a large number of new technologies, new products and new applications. There are a large number of devices in the Internet of Things. The interconnection of location information of these devices brings convenience to people's lives, and there is also the problem of leaking location privacy. Therefore, effective management of the location information of the device is crucial to the development of the Internet of Things. At present, in the aspect of device location information supervision, the traditional encryption method or the location information is generally blurred, which improves the security of the location information, but also reduces the applicability of the location information. Aiming at these problems, based on the research on the equipment positioning of the Internet of Things and the key technologies of the blockchain, this paper designs a location chain storage system for IoT devices based on blockchain, and experiments the system. The results show that the number of transactions in the block has a significant impact on the time the system provides location services. The number of transactions in the block can be reasonably set by calculating the network nodes in the blockchain. The results show that the system can protect the device. Providing location information services to users under the premise of location privacy.