Production plan management device, production plan management method, and production plan management system

A production plan management method for generating, in real time, a production plan of a product, the production plan management method comprising:

• a step of acquiring product order information including a customer request specifying an item, quantity, and a delivery date of a first product;
• a step of acquiring cost criterion information specifying a cost criterion for costs required to manufacture the first product;
• a step of acquiring structural constraint information specifying a structural constraint defining a condition for manufacturing processes to manufacture the first product;
• a step of generating, in real time, a production plan that satisfies the customer request, the cost criterion, and the structural constraint and defines manufacturing processes for manufacturing the first product;
• a step of acquiring information regarding failure probability of a failure occurring for each of the manufacturing processes and determining a probability of a failure occurring in each of the manufacturing processes included in the production plan by using the information regarding failure probability;
• a step of determining, in a case that the probability of a failure occurring with respect to a first manufacturing process included in the production plan exceeds a predetermined failure probability criterion, a first alternate manufacturing process to be executed instead of the first manufacturing process in the production plan;
• and
• a step of changing, in a case that a failure occurs in the first manufacturing process, the first manufacturing process to the first alternate manufacturing process in the production plan.

A production plan management system for generating, in real time, a production plan of a product, the production plan management system comprising:

• a customer terminal used by a customer requesting a first product;
• a distribution terminal configured to manage information regarding distribution of the first product;
• a delivery terminal configured to manage information regarding delivery of the first product;
• a management terminal used by an administrator of a factory;
• and
• a production plan management device configured to generate a production plan, wherein:
• the customer terminal, the distribution terminal, the delivery terminal, the management terminal, and the production plan management device are connected to each other via a communication network;
• and
• the production plan management device includes
• a communication unit configured to
• receive, from the customer terminal, product order information including a customer request specifying an item, quantity, and a delivery date of the first product,
• receive, from the management terminal, cost criterion information specifying a cost criterion for costs required to manufacture the first product, and
• receive, from the distribution terminal and/or the delivery terminal, distribution and delivery status information that indicates a respective status of distribution and delivery,
• a storage unit configured to store a structural constraint database including structural constraint information specifying a structural constraint defining a condition for manufacturing processes to manufacture the first product in the factory, and
• a production plan generating unit configured to generate, in real time, a production plan that satisfies the customer request, the cost criterion, and the structural constraint and defines manufacturing processes for manufacturing the first product, calculate an estimated delivery date on which the first product is deliverable to the customer based on the production plan thus generated and a lead calculated from the delivery status information, and transmit the estimated delivery date to the customer terminal.