摘要:
A method and a system control just in time item production via kanban cards. The items are transformed according to a flow shop containing a raw material buffer followed by a sequence of production pairs containing one workstation and an assigned buffer. A local buffer threshold parameter is provided and denotes the desired safety stock of the items of the specific type in the buffer. A global demand threshold parameter is provided and denotes the quantity of items of the specific item type required along the downstream process to satisfy the estimated demand. Whenever a kanban card is associated to an item of a specific type switches status, it is assigned one of four priority levels indicating the priority level of the production request. At each production pair, an item is produced of a type whose priority level is the highest according to a given priority model.
摘要:
The batch size of materials required for each process within a workstation based on a given shipment schedule, as well as the values of several other workstation variables that are determinative of workstation and factory performance are determined. With this information, the user of the invention may schedule production for the factory or spot and prioritize workstations requiring the most improvement, and determine the character and quantity of improvement.
摘要:
A traceability management data creation apparatus for creating data for managing traceability for identifying parts, materials, products and unfinished products associated with one another in a kanban production system is provided with: a product record creation section which creates a product record including a product number of a product, a sequential number of a kanban accompanying the product, and a point in time of starting manufacture of the product, the product record being associated with one product or one group of the same kind of products; and a link record creation section which creates a link record which associates the product record of an unfinished product and the product record of a next-stage product manufactured with the use of the unfinished product as a material or a part.
摘要:
A process control method allowing an operator to readily confirm an order of operation processes includes steps of: reading magnetic data of a control card when the control card is inserted; transmitting completion data based on a lot number identified from read magnetic data to a host computer; receiving update data by the host computer; writing next process data in the received data as a visually recognizable image on the control card; and writing the next process data as a visually recognizable image based on process data identified by the read magnetic data when a predetermined time period passes without receiving update data.
摘要:
The invention determines the batch size of materials required for each process within a workstation based on a given shipment schedule, as well as the values of several other workstation variables that are determinative of workstation and factory performance. With this information, the user of the invention may schedule production for the factory or spot and prioritize workstations requiring the most improvement, and determine the character and quantity of improvement.
摘要:
A production system acquires a program list on the basis of Kanban information and switches programs of production facilities and a program switching method used in the production system are disclosed. The production system includes: program list acquisition means for acquiring a product name from a Kanban information management table and acquiring a program list corresponding to a combination of the acquired product name and a production line name from a product information management table; and program switching means for searching for a corresponding program from a program storage unit on the basis of the program list acquired by the program list acquisition means, transmitting the searched program to each production facility of a plurality of production lines, and switching the program.
摘要:
A production system acquires a program list on the basis of Kanban information and switches programs of production facilities and a program switching method used in the production system are disclosed. The production system includes: program list acquisition means for acquiring a product name from a Kanban information management table and acquiring a program list corresponding to a combination of the acquired product name and a production line name from a product information management table; and program switching means for searching for a corresponding program from a program storage unit on the basis of the program list acquired by the program list acquisition means, transmitting the searched program to each production facility of a plurality of production lines, and switching the program.
摘要:
A method for transporting a group of semiconductor wafers and a manufacturing system are provided. A semiconductor processing facility is provided. The semiconductor processing facility includes a first destination, a second destination, and a transport system configured to transport a group of semiconductor wafers from the first destination to the second destination. Real time information is collected, where the real time information includes information on a current process executing in the semiconductor processing facility and information on a transfer time. The information on the transfer time includes data that indicates an amount of time required to transport the group of semiconductor wafers from the first destination to the second destination. A request is issued to the transport system to effect the transportation of the group of semiconductor wafers from the first destination to the second destination. A timing of the request is based on the first and second data.
摘要:
A method for transporting a group of semiconductor wafers and a manufacturing system are provided. A semiconductor processing facility is provided. The semiconductor processing facility includes a first destination, a second destination, and a transport system configured to transport a group of semiconductor wafers from the first destination to the second destination. Real time information is collected, where the real time information includes information on a current process executing in the semiconductor processing facility and information on a transfer time. The information on the transfer time includes data that indicates an amount of time required to transport the group of semiconductor wafers from the first destination to the second destination. A request is issued to the transport system to effect the transportation of the group of semiconductor wafers from the first destination to the second destination. A timing of the request is based on the first and second data.
摘要:
The present invention relates to a system and methodology facilitating material-driven processing in an industrial controller environment. Various models supported by database objects are provided to automatically and dynamically map inventory systems/processes to control systems/process such as in batch or recipe operations. A material model is provided that tracks to an inventory database and includes such aspects as defining material types and containers to house such materials. An area model maps the material model to possible units and equipment modules to process the materials. These models include phased-based parameters that define amounts of material that flow into and out of a determined area for processing the materials. Before, during and/or after automated manufacturing operations, object binding operations occur between material-based servers associated with an inventory system and batch servers associated with a process-control system. Such binding includes Just-In-Time or on-demand binding at run time, and relates material requirements of a recipe (or batch) to the units and equipment that are available to produce the recipe.