The present disclosure is intended to provide a technique which enables a direct visual comparison between a computationally-machined surface profile determined based on motor position information and a machined surface profile obtained by actual measurement of a machined surface. A display unit includes: a motor position information acquirer that acquires motor position information including at least one of a command position or a real position of a motor; a machine information acquirer that acquires machine information including a drive shaft configuration, a tool geometry, and a shape of an unmachined workpiece; a machined surface profile simulator that performs a simulation of machining a workpiece based on a machining program, and determines a computationally-machined surface profile of the workpiece simulated to be machined, based on the motor position information and the machine information; a machined surface profile measurer that measures a machined surface profile of a machined workpiece that has actually been machined based on the machining program; and a machined surface profile display that displays the computationally-machined surface profile determined by the machined surface profile simulator, in parallel with the machined surface profile measured by the machined surface profile measurer.

An estimating device includes a storage unit that stores in association with each other state history information showing, as a history, a state of electrical equipment in which an abnormality has occurred, and cause history information showing, as a history, a cause of the abnormality, an acquisition unit that acquires state information indicating the state of the electrical equipment in which the abnormality has occurred, a detection unit that detects, from among a plurality of the state history information stored in the storage unit, at least one of the state history information that is similar to the state information acquired by the acquisition unit, and a notification unit that issues a notification concerning the cause of the abnormality, on the basis of the cause history information that is associated with the state history information detected by the detection unit.

The present disclosure is intended to provide a technique which enables a direct visual comparison between a computationally-machined surface profile determined based on motor position information and a machined surface profile obtained by actual measurement of a machined surface. A display unit includes: a motor position information acquirer that acquires motor position information including at least one of a command position or a real position of a motor; a machine information acquirer that acquires machine information including a drive shaft configuration, a tool geometry, and a shape of an unmachined workpiece; a machined surface profile simulator that performs a simulation of machining a workpiece based on a machining program, and determines a computationally-machined surface profile of the workpiece simulated to be machined, based on the motor position information and the machine information; a machined surface profile measurer that measures a machined surface profile of a machined workpiece that has actually been machined based on the machining program; and a machined surface profile display that displays the computationally-machined surface profile determined by the machined surface profile simulator, in parallel with the machined surface profile measured by the machined surface profile measurer.

An estimating device includes a storage unit that stores in association with each other state history information showing, as a history, a state of electrical equipment in which an abnormality has occurred, and cause history information showing, as a history, a cause of the abnormality, an acquisition unit that acquires state information indicating the state of the electrical equipment in which the abnormality has occurred, a detection unit that detects, from among a plurality of the state history information stored in the storage unit, at least one of the state history information that is similar to the state information acquired by the acquisition unit, and a notification unit that issues a notification concerning the cause of the abnormality, on the basis of the cause history information that is associated with the state history information detected by the detection unit.