Patent ID: 8532865
Filing Date: 2013-09-10
Classification: E02F,G07C

Abstract:
1. A device diagnostic apparatus for a working machine including a body and a work device provided on the body, the device diagnostic apparatus diagnosing at least one of a plurality of components, as a target device, included in the working machine, the apparatus comprising: a data judgment unit configured to compare, when device information including operating condition information and internal state information is input, the operating condition information in the device information with operating condition information stored beforehand to judge whether or not both of the operating condition information agree with each other, and then output judgment result information, the operating condition information including external environment information of the target device and operation information of the target device that indicates operating conditions including environment and way under which the target device has been operated, and the internal state information including operation state information of the target device that indicates how the target device has been moved under the operating conditions of the operating condition information; and a state diagnosis unit configured to compare, when the judgment result information indicates that both of the operating condition information agree with each other, the internal state information in the device information with internal state information stored beforehand and associated with the stored operating condition information, and then output a result of the comparison.