Dongjak-gu Protects Construction Site Safety Using Internet of Things (IoT) Technology

Installation of 15 IoT Sensors Including Tilt and Crack Sensors at 5 Private Small and Medium Construction Sites... Efficiently Managed in Connection with Last Year's Established Smart Safety Management System

[Asia Economy Reporter Jongil Park] Dongjak-gu (Mayor Changwoo Lee) is installing and operating ‘Construction Site IoT Sensors’ to strengthen safety management for private construction workers.

This project utilizes Internet of Things (IoT) technology linked with a smart safety management system to detect safety accidents at construction sites in advance and notify of dangerous situations, aiming for thorough prevention and management of safety risks at construction sites.

Previously, last year, the district created and attached ‘management QR codes’ to hazardous facilities in the area and built a ‘smart safety management system’ that allows management anytime and anywhere by inputting information such as ▲construction site status and inspection ▲progress reports ▲hazardous facility management.

Along with this, 16 IoT sensors were pilot-installed and operated at four hazardous facilities in the area.

This year, the installation targets are five private small- and medium-sized construction sites designated as ‘high-level’ hazardous construction sites, with a total of three IoT sensors per site: two tilt sensors and one crack sensor installed on the site’s earth retaining structures and adjacent stone retaining walls or embankments.

The tilt sensors measure the tilt (±10 degrees) and temperature (-40~125℃) of buildings or civil engineering structures every hour, while the crack sensors measure the crack length (0~40mm) of the target facilities six times per hour.

The sensors are equipped with large-capacity batteries that operate for up to two years and are enclosed in waterproof cases to detect abnormalities without difficulty even in severe weather conditions.

The collected information is linked in real-time to the manager’s mobile phone, and if any abnormal signs appear, text messages are immediately sent to construction personnel and officials. Managers then check and take action on the risk factors.

The sensors are installed until the completion of underground framework work, and after the installation and operation end, the IoT sensors are retrieved and installed at other construction sites.

Im Changseop, the Safety and Disaster Officer, said, “Through this project, we will do our best to create a safe Dongjak by strengthening management of construction sites and adjacent aging facilities to prevent safety accidents at construction sites in advance.”