METHOD FOR MONITORING MANUFACTURING DEVICE

摘要

PROBLEM TO BE SOLVED: To accurately evaluate the influence of an operation stop of a manufacturing device on the manufacturing state of a product. SOLUTION: A 1st influence degree is calculated from the value obtained by subtracting the number of products in a processing wait state at a manufacturing device at a specific point of time before the manufacturing device stops operating from the number of products in a processing wait state at the manufacturing device at a specific point of time after the manufacturing device restarts operating after stopping operating and a 2nd influence degree is calculated from the value obtained by subtracting the time of the processing wait of products having been processed by the manufacturing device in a specific period before the manufacturing device stops operating from the time of the processing wait state of produces having been processed by the manufacturing device for a specific period after the manufacturing device restarts operating after stopping operating. The influence of the stop is evaluated according to the 1st influence degree and 2nd influence degree.