Operation area presentation device and operation area presentation method

An operation area presentation device comprising:

• a plurality of detectors that:
• calculate a position of a swing body of a work machine in a site coordinate system and an azimuth direction in which the swing body faces;
• measure an acceleration and an angular velocity of the swing body and detects the inclination of the swing body with respect to a horizontal plane based on the measurement result;
• detect acceleration related to traveling of the work machine;
• and
• detect swing angles of the work machine undercarriage and the swing body, and
• a processor, the processor being configured to:
• receive history data of a position of an operation site in which the work machine is present;
• receive warning history data related to a predetermined incident risk of the work machine;
• calculate a staying time of the work machine for each of a plurality of areas of the operation site;
• calculate magnitude of the predetermined incident risk of the work machine for each of the plurality of areas;
• generate an operation area map obtained by mapping the staying time for each of the plurality of areas to a map of the operation site;
• generate the operation area map by mapping the staying time and the magnitude of the predetermined incident risk for each of the plurality of areas to the map of the operation site;
• and
• output the generated operation area map,
• wherein the work machine is controlled for a plurality of time periods to acquire data history of the work machine wherein the historical data acquisition is accomplished by:
• calculating a position of the swing body in a site coordinate system;
• measuring the angular velocity of the swing body;
• and
• detecting acceleration related to the traveling of the work machine.