CONSTRUCTION MACHINE MANAGEMENT SYSTEM

摘要

Provided is a construction machine management system with which it is possible to perform failure analysis and failure/predictor diagnosis of a machine with high accuracy and at low cost. In a construction machine group that comprises at least one representative machine (construction machine 1a) including an engine control unit 104 for detecting a cumulative stress value of a diesel engine 21 of the construction machine and a crank case pressure sensor 308 for detecting the crank case pressure, and at least one general machine (construction machines 1b, 1c) including an engine control unit 104 but not including a crank case pressure sensor 308, a center server 105 performs predictor diagnosis of a failure state related to the crank case pressure of the general machine on the basis of correlation information between the cumulative stress value and the crank case pressure obtained from the representative machine, and the cumulative stress value of the general machine.