Development of warning system for preventing collision accident on construction site: Fid-Bau Portal

Development of warning system for preventing collision accident on construction site

Chae, Soungho

Several types of vehicles and heavy equipment, such as cranes and excavators, are used on construction sites to increase labour efficiency. This kind of equipment plays a crucial role in planning the work processes of building structures. The construction manager is required to plan vehicle zones and safety facilities. However, the number of accidents in which workers are struck by heavy equipment caused by negligence is increasing. A method is necessary to complement accident prevention techniques such as Toolbox Safety Talk and Hazard Identification, which are conventionally performed to assist in avoiding accidents. The author has designed a Collision Accident Prevention System (CAPS) that uses an RFID device based on accident issues. The objective of this study was to develop a warning system as a part of the CAPS. The required functions were established on the basis of a past accidents model. The system was designed to send a warning via wireless from a server computer to a worker and relevant parties according to estimation of distance between worker and equipment. RFID technology was used to estimate the distance. A warning message was defined as a means of sending information about danger to the worker and relevant parties. Parties receiving a warning were set up for each case, and the contents of the warning message were prepared accordingly. An experimental prototype device for sending a message from a server computer to a smart-phone was made under a wireless local area network, and it was clarified that to accept a warning message and to send a response. The results show that the warning system optimized for individual people is efficient in reducing a worker's inadvertent error, recognizing warning information sharing by concerned parities, and confirming avoidance.