In this paper, we propose a blockchain-based cold chain technology for vaccine cooling track. The COVID-19 pandemic has caused the death of millions of people. An important step towards ending the pandemic is vaccination. Vaccines must be kept under control temperature during the whole process, from fabrication to the hands of the health professionals who will immunize the population. However, there are numerous reports of vaccine loss due to temperature variations, and, currently, people getting vaccinated have no control if their vaccine was kept safe. Blockchain is a technology solution that can provide public and verifiable records. We review the World Health Organization (WHO) cool chain and Blockchain technology. Moreover, we describe current IoT temperature monitoring devices and propose Blockcoldchain to track vaccine cold chain using blockchain, thus proving an unalterable vaccine temperature history. Our experimental results using smart contracts demonstrate the system's feasibility.
翻译:在本文中,我们建议为疫苗冷却轨道提供以链为主的冷链技术。COVID-19大流行已造成数百万人死亡。结束这一流行病的一个重要步骤是接种疫苗。疫苗在整个过程中必须保持在控制温度之下,从制造到卫生专业人员对人口进行免疫。然而,有许多报道说,由于温度变化造成疫苗损失,而目前,如果疫苗是安全的,接种疫苗的人就没有控制权。封锁是能够提供公开和可核查的记录的技术解决方案。我们审查了世界卫生组织(世卫组织)的冷链和链链技术。此外,我们描述了目前的IOT温度监测装置,并提议用链子跟踪疫苗冷链,从而证明疫苗温度历史不易变。我们使用智能合同的实验结果证明了系统的可行性。