面向区块链溯源应用的可信数据采集机制

A trusted data acquisition mechanism for blockchain traceability application

提高物联网设备采集数据的安全性和真实性,是区块链溯源应用面临的重要问题。文章设计并实现了一种物联网终端数据安全可信的采集、记录方法。该方法设计多采集设备减少数据缺失风险,使用认证和加密方法来保障安全传输,利用采集设备和IOT网关完成数据的筛选,对异常设备统计并进行警告。同时,通过移动均值计算完成误差约减的功能,减少不稳定设备造成的数据偏差、数据错误、数据冗余等问题。另外,该机制还包含基于序号的同步策略,保证数据的正确传输顺序。最后系统通过实验,验证该机制的可行性。

Improving the authenticity and security of data collected by Internet of Things devices is an important problem in the application of blockchain traceability.This paper designed and implemented a safe and reliable method to collect and record data from the Internet of Things terminals.This method utilizes multi-device collection to reduce the risk of data missing,employs certification and encryption technologies to ensure secure transmission,uses collected equipment and IOT gateway to select data,calculates and gives warnings for the abnormal equipment.Data deviation,data errors,data redundancy and other problems caused by unstable equipment are reduced through the moving average method at the same time.In addition,the mechanism also includes a synchronization policy based on sequence numbers to ensure the correct data transmission Finally,the feasibility of the mechanism was verified through experiments.