Patent ID: 8600652

Claim:
A crane operation evaluation device for evaluating an operation status of an operator of a crane performing a crane work by using drive power of an engine, the crane operation evaluation device comprising: a display device provided at a position of the crane that is visible to the operator and serving to display predetermined data; a detector for detecting a state of a given part of the crane; and a data control unit that, after a stopping operation of the engine, derives a first fuel consumption index for analyzing a fuel consumption efficiency of the crane work performed in the entire period between the most recent start of the engine before the stopping operation of the engine and a stop of the engine by the stopping operation, and a first work index for analyzing content of the crane work performed in the entire period between the most recent start of the engine before the stopping operation of the engine and the stop of the engine by the stopping operation, on the basis of detection data of the detector, and causes the display device to display the derived first fuel consumption index and first work index, wherein the first fuel consumption index includes a fuel consumption amount per unit interval of moment-time in the entire period, and the data control unit calculates a moment by multiplying a work radius of the crane by a suspension load of the crane, calculates the moment-time by multiplying the calculated moment by a corresponding work time, calculates an accumulated total moment-time in the entire period, and calculates the fuel consumption amount per unit interval of the moment-time by dividing a fuel amount consumed in the crane work performed in the entire period by the accumulated total moment-time.