Management Device and Management System for Work Machine

Abstract

The present invention provides a management device and management system for work machine that can improve the accuracy of determining oil abnormalities. The management server manages the oil used in the drive device of a hydraulic excavator. Additionally, the management server has an oil change detection unit that obtains measurement values of the properties of the target oil from an oil sensor mounted on the hydraulic excavator and detects the exchange of the target oil based on changes in the properties of the target oil. Furthermore, the management server has an oil type candidate selection unit that selects multiple oil type candidates for the exchanged target oil based on the properties measured by the oil sensor after detecting the exchange of the target oil. Additionally, the management server has an oil type acquisition unit that outputs a command to select the type of the target oil from the multiple oil type candidates and acquires the type of the target oil by accepting the selection input of the type of the target oil. Then, the management server has an oil abnormality judgment unit that determines abnormalities in the target oil by comparing the properties measured by the oil sensor with a threshold corresponding to the type of the target oil.

Dependencies are inferred from the claim text.