Abstract:
A safety observation signal apparatus for maintaining and managing a large facility and a method for controlling the same are provided to maintain and manage facilities without installing a safety observation system, and to easily install at a large facility such as a bridge and a tunnel. A safety observation signal apparatus for maintaining and managing a large facility includes a sensor(12) detecting whether a facility is in a normal state. A controlling unit amplifies and processes a signal applied from the sensor, and outputs a controlling signal to a displaying unit(14) according to an algorism displaying a danger information. The displaying unit displays whether a large facility is in a normal state according to the controlling signal applied from the controlling unit. The controlling unit includes an amplifier(15) amplifying a sensing signal, a digital signal processor(16) processing an amplified signal, and a danger information processing unit(17).