Production schedule change system, production schedule change method, and production schedule change program

A production schedule change method comprising:

• a production schedule acquisition step of acquiring a production schedule of a product in a case where the product is produced at an initial condition of production speed;
• a time information acquisition step of acquiring time information indicating a scheduled collection time;
• and
• a schedule candidate calculation step of:
• changing the production speed from the initial condition within a range defined by a quality standard of the product, based on the time information;
• and
• calculating at least one candidate of the production schedule,
• the at least one candidate satisfying a first condition that a time difference between a deliverable time of the product and the scheduled collection time is in an acceptable range,
• the at least one candidate further satisfying at least one of a second condition that the deliverable time is earlier than the scheduled collection time or a third condition that the scheduled collection time is earlier than the deliverable time.

A production schedule change program configured to cause a computer to function as:

• a production schedule acquisition unit configured to acquire a production schedule of a product in a case where the product is produced at an initial condition of production speed;
• a time information acquisition unit configured to acquire time information indicating a scheduled collection time;
• and
• a schedule candidate calculation unit configured to:
• change the production speed from the initial condition within a range defined by a quality standard of the product, based on the time information;
• and
• calculate at least one candidate of the production schedule,
• the at least one candidate satisfying a first condition that a time difference between a deliverable time of the product and the scheduled collection time is in an acceptable range,
• the at least one candidate further satisfying at least one of a second condition that the deliverable time is earlier than the scheduled collection time or a third condition that the scheduled collection time is earlier than the deliverable time.