Construction Machinery and Evaluation Devices

Abstract

The construction machine (100) of the present invention includes: a lower traveling body (10); an upper rotating body (20) installed in a structure capable of rotating relative to the lower traveling body (10); a working device (30) configured to The upper slewing body (20) is installed with a structure capable of swinging in the up and down direction, and includes a plurality of attachment devices (31, 32, 33); the motion state acquisition part (71) acquires a plurality of attachment devices (31, 32, 33 ) of the motion state quantity of the synthetic center of gravity; the equivalent system generating unit (72) generates the transfer function as an equivalent system equivalently expressing the action of the working device (30), the transfer function is to drive the working device (30) The driving force is input and the motion state quantity is output; and the parameter estimation unit (73) estimates the system attenuation coefficient and the natural angular frequency of the transfer function as the operation skill evaluation value.

Description

technical field [0001] The present invention relates to a technique for evaluating the operational skill of an operator who operates a construction machine. Background technique [0002] In the recent construction industry, the amount of investment in construction has decreased and the working population of young people has declined significantly, leading to an aging population. On the other hand, in such a social environment, there is a tendency to realize a promising construction site where wages are high and vacations can be taken, and to increase productivity by creating an attractive construction site. Therefore, it is required to balance the originally contradictory increase in productivity and the creation of an attractive construction site. In various industries including the construction industry, "i-Construction (intelligent construction)" is being promoted under the national leadership as a measure to improve productivity and create attractive sites. In this "i-...

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