Working-state cable protection monitoring system, working-state cable protection monitoring method, and storage medium having stored therein working-state cable protection monitoring program

A working-state cable protection monitoring system comprising:

• a work apparatus configured to work or install a wire cable-shaped construction material including an optical fiber having at least one core;
• an interrogator configured to acquire environment information in each location of the construction material being sensed by the optical fiber;
• an abnormal event detector configured to detect, when the environment information acquired in the location satisfies an abnormal pattern, an abnormal event in the location;
• and
• a power supplier configured to supply power from outside to the construction material, wherein
• the work apparatus stops movement and installation of the wire cable-shaped construction material when the abnormal event is detected,
• the construction material includes a repeater including an optical amplifier having an optical amplification repeater function, and
• the optical fiber included in the construction material
• is not connected to the optical amplifier and
• is connectable to the interrogator by being drawn to outside at a connector to the repeater.

A working-state cable protection monitoring method comprising:

• acquiring, by an optical fiber having at least one core being included in a wire cable-shaped construction material being moved or installed, environment information in each location of the construction material;
• previously storing, as a non-abnormal pattern, previous environment information acquired when a work apparatus appropriately moves or installs the construction material,
• detecting, when the environment information acquired in the location satisfies an abnormal pattern, an abnormal event in the location, wherein the abnormal event is not detected when the environment information satisfies the non-abnormal pattern;
• stopping, when the abnormal event is detected, movement and installation of the wire cable-shaped construction material;
• and
• determining, based on the environment information and the non-abnormal pattern, a location making contact with the work apparatus among locations of the construction material.