System and method for status diagnosis of construction machinery

A system for status diagnosis of construction machinery to determine the abnormality of the construction machinery, comprising:

• a sensor unit including at least one or more oil property sensors for detecting oil property information and at least one or more equipment sensors for detecting operating status information of the construction machinery;
• a control unit configured to determine a basic status of the construction machinery through the oil property information and determine an overall status of the construction machinery based on the operating status information of the construction machinery and the basic status of the construction machinery;
• and
• a display unit configured to display a notification according to the determination of the control unit,
• wherein the operating status information of the construction machinery detected through the equipment sensor includes a first factor including operating time information, operating condition information, and parts maintenance information of the construction machinery and a second factor including operating specification information of the construction machinery by the change in the properties of the oil,
• wherein the basic status of the construction machinery is determined based on kinematic viscosity and permittivity for each temperature section of the oil, and
• wherein the control unit calculates a score for the first factor by summing numeric scores of operating time information, operating condition information, and parts maintenance information of the construction machinery and determines a qualitative grade for the first factor based on the score for the first factor.