Aid device for inspection system and display method therefor
A technology for supporting devices and display methods, applied in measuring devices, instruments, measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problems of complex genetic algorithm control, difficult to incorporate exploration methods, and judgment of qualified and unqualified.
Inactive Publication Date: 2005-11-23
ORMON CORP
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[0020] Moreover, the control of the genetic algorithm itself is complicated, so it is difficult to incorporate a search method corresponding to the degree of influence between parameters.
As a result, even if the method of Patent Document 2 is used, it is difficult to efficiently find the optimal parameters in a short time
[0021] In addition, in the case of the genetic algorithm, even if the characteristic quantities and parameters finally used in the actual abnormal sound inspection system are determined, it is still unknown on what grounds they are determined, and it is not possible to confirm whether they are the optimal characteristic quantities and parameters
Therefore, if the optimization of the condition setting is not sufficiently carried out, the correct pass / fail judgment cannot be made, and the abnormal sound inspection can only be carried out by trusting the determined characteristic quantity and parameters.
Method used
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[0062] First, a brief description will be given of the abnormal sound inspection device that is the object of setting feature quantities and parameters in the embodiment of the present invention. The abnormal sound inspection device calculates a plurality of specified feature quantities after preprocessing the waveform data obtained by the vibration sensor or the sound microphone, and uses the effective calculation results from the calculation results to determine whether the qualified product / rejected product / Uncertain judgment as the basic structure. As such a pre-processing filter, a plurality of types of filters such as a band-pass filter, a low-pass filter, and a high-pass filter are prepared, and a plurality of feature quantities to be calculated are also prepared.
[0063] Effective pre-processing, feature quantities, etc., which are approximately determined for pass / fail judgment by inspection objects, may include processes that uselessly calculate feature quantities ...
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This invention provides an intelligent preparation support system allowing a user to determine efficiently a feature quantity and / or a parameter optimum to an inspection device. A computed result found by computing the feature quantity as to a prescribed combination of the set feature quantity and parameter is acquired in a waveform data acquired from an inspection object. Then, a graph using the set feature quantity and parameter as an ordinate and an abscissa is displayed based on the acquired computed result. Each area on the graph is indicated by a concentration corresponding to the computed result in every combination of the ordinate and the abscissa. The user is able to find easily the area of high concentration, by indicating the concentration, and a condition such as the combination of the feature quantity and the parameter optimum to the waveform data acquired from the inspection object is easily found by observing the combination of the feature quantity and the parameter corresponding to the area.
Description
technical field [0001] The present invention relates to a knowledge formation support device and a display method. Background technique [0002] Rotary devices incorporating motors are often used in automobiles, home appliances, and the like. For example, if we look at a car as an example, a rotating device is installed on the engine, power steering device, electric seat, gearbox and other parts. Home appliances include refrigerators, air conditioners, washing machines and other products. When such a rotary device is actually operated, sound is generated accompanying the rotation of a motor or the like. [0003] Such sounds include those that are inevitable with normal actions, and those that are accompanied by abnormalities. The causes of abnormal noise accompanying defects include abnormality of the bearing, abnormal contact inside, imbalance, foreign matter, etc. For example, the causes of abnormal noise generated at a frequency of one rotation of a gear include gear ...
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Inventor 堀正树
Owner ORMON CORP