Cell control system

A cell control system, comprising:

• at least one manufacturing cell including at least one manufacturing machine;
• and
• a cell controller for transmitting an operation instruction to the manufacturing machine based on a manufacturing plan received from a production planning device,
• wherein
• the cell controller includes:
• a machine operation instruction unit for transmitting the operation instruction to the manufacturing machine based on the manufacturing plan,
• a noise value collection unit for collecting a noise value related to noise detected by the manufacturing machine,
• an operation information collection unit for collecting operation information of the manufacturing machine,
• a learning unit for creating a learning model by performing machine learning using the operation information collected by the operation information collection unit as an input signal and the noise value collected by the noise value collection unit as an instruction signal,
• an estimation unit for analyzing the learning model created by the learning unit to estimate operation information corresponding to a cause of the noise detected by the manufacturing machine, the estimation unit being configured to estimate a trend in a change of the noise value due to a change of the operation information, and
• an operation instruction change unit for instructing the machine operation instruction unit to change instruction content of the operation instruction, based on the operation information corresponding to the cause of the noise estimated by the estimation unit,
• the at least one manufacturing machine includes a plurality of manufacturing machines, and
• the estimation unit is configured to estimate a manufacturing machine having a low noise immunity among the plurality of manufacturing machines by:
• selecting one piece of the operation information collected by the operation information collection unit,
• inputting the selected piece of the operation information as an input value to the learning model,
• calculating a slope of the input value at which each output value increases,
• varying each input value in a direction of the calculated slope, the varying comprising increasing or decreasing,
• repeating the inputting, the calculating and the varying until one of output values exceeds a predetermined threshold value, and
• estimating the manufacturing machine corresponding to the output value exceeding the predetermined threshold value as the manufacturing machine having the low noise immunity.