Production management device, production management system, production management method, and storage medium

A production management device comprising processing circuitry,

• the processing circuitry being configured to:
• acquire a short-term plan generated based on a long-term plan, the long-term plan being of a plan of production in a prescribed period, the short-term plan being of a plan of production in a first period, the first period being shorter than the prescribed period, the first period including a first subperiod and a second subperiod after the first subperiod;
• during the first subperiod, acquire at least one of
• an image from an imaging device, the imaging device being configured to image a task performed according to a part of the short-term plan, or
• a time-series signal from a detector, the detector being configured to detect a signal generated by the task performed according to the part of the short-term plan;
• during the first subperiod, acquire a previous lead time in the task performed according to the part of the short-term plan, the previous lead time being calculated by at least one of the image or the time-series signal;
• before the second subperiod starts, predict, by using the previous lead time, a future lead time in the task performed according to an other part of the short-term plan in the second subperiod;
• revise the short-term plan based on the future lead time;
• predict a lead time in the task in the prescribed period by using a lead time in the task performed according to the revised short-term plan;
• and
• generate a new long-term plan in the prescribed period by using the lead time in the predicted prescribed period.

A production management method, comprising:

• acquiring a first short-term plan generated based on a first long-term plan, the first long-term plan being of a plan of production in a prescribed period, the first short-term plan being of a plan of production in a first period shorter than the prescribed period, the first period including a first subperiod and a second subperiod after the first subperiod;
• during the first subperiod, acquiring at least one of
• an image from an imaging device, the imaging device being configured to image a task performed according to a part of the first short-term plan, or
• a time-series signal from a detector, the detector being configured to detect a signal generated by the task performed according to the part of the first short-term plan;
• during the first subperiod, acquiring first progress data of a progress in the task performed according to the part of the first short-term plan, the first progress data being calculated by using at least one of the image or the time-series signal;
• before the second subperiod starts, acquiring first prediction data by using the first progress data, the first prediction data being of a prediction of a progress in the task performed according to an other part of the first short-term plan in the second subperiod;
• revising the first short-term plan based on the first prediction data;
• acquiring second prediction data by using second progress data, the second progress data being of a progress in the task in the first period, the second prediction data being of a prediction of a progress of the production in the prescribed period;
• and
• generating a second long-term plan in the prescribed period by using the second prediction data.

A production management device comprising processing circuitry, the processing circuitry being configured to:

• acquire a first short-term plan generated based on a first long-term plan, the first long-term plan being of a plan of production in a prescribed period, the first short-term plan being of a plan of production in a first period shorter than the prescribed period, the first period including a first subperiod and a second subperiod after the first subperiod;
• during the first subperiod, acquire at least one of
• an image from an imaging device, the imaging device being configured to image a task performed according to a part of the first short-term plan, or
• a time-series signal from a detector, the detector being configured to detect a signal generated by the task performed according to the part of the first short-term plan,
• during the first subperiod, acquire first progress data of a progress in the task performed according to the part of the first short-term plan, the first progress data being calculated by using at least one of the image or the time-series signal;
• before the second subperiod starts, acquire first prediction data by using the first progress data, the first prediction data being of a prediction of a progress in the task performed according to an other part of the first short-term plan in the second subperiod;
• revise the first short-term plan based on the first prediction data;
• acquire second prediction data by using second progress data, the second progress data being of a progress in the task in the first period, the second prediction data being of a prediction of a progress of the production in the prescribed period;
• update master data by using the second prediction data;
• and
• generate a second long-term plan in the prescribed period by using scheduling based on the updated master data.