In the wake of the tragic collapse of the multifamily highrise in Miami, this article about new digital risk detection and prevention technology is timely. The Seoul, South Korea Metropolitan Government (SMG) is introducing a “Blockchain-based Safety Checkup Platform for Risky Structures” in December 2021 for 824 public and privately owned buildings that are more than 30 years old or designated as facilities prone to disasters. This is the very first case of converging blockchain technologies with IoT.

The SMG, the district office, and the owners will be able to monitor current status and other data 24/7 via computers and smartphones.

How does it work?

IoT sensors attached to the wall measure the slope and cracks of a building. Then, blockchain networks save and analyze the data to prove the accuracy of such information and abnormal changes to the structure. Once risks are detected, safety alert text messages are sent to the district office and the building owner so that they can take preventive measures.

Seoul expects to identify dangerous situations, take preemptive measures, and secure data more effectively once it kickstarts the platform. In addition, objective data is expected to allow the city government to determine the cause of various safety accidents. Such data can also be used to settle conflicts related to safety incidents and establish better safety management measures. Blockchain technologies, in particular, guarantee transparent history management. Building data accuracy and security will be enhanced as well.