Improvement and Utilization of Auxiliary Radio Communication System

An auxiliary radio communication system is a fire extinguishing system necessary for smooth radio communication between a fire brigade and the ground command departments performing fire extinguishing and rescue activities at disaster sites such as basements, tunnels, and high-rise buildings. The ability to provide smooth communication between the command and field personnel at the disaster site determines the success of the operation. However, the reinforced concrete structures used in modern buildings reflect, refract, and diffract radio waves. Thus, they represent the largest obstacles to transmission and reception. To compensate for this aspect, leaky coaxial cables and antennas can be installed to enable stable radio communication between fire departments. Nevertheless, at most fire and rescue sites, auxiliary radio communication systems are rarely used. This is because the existing connection terminal box method is inconvenient for firefighters, as the range of transmission and reception is limited and communication is substandard. In general, fire safety standards were revised after converting firefighting radios to digital transmission owing to the revision of the Radio Act, but the problems in areas such as design, supervision, and inspection did not improve. In this study, fire and rescue activities are performed with smooth communication at disaster sites by analyzing and addressing the problems of auxiliary radio communication systems.