Real time closed-loop process control system for defect prevention
AssigneeSiemens Dematic Electronics Assembly Systems, Inc.
InventorTuan Nguyen
Life of this patent
Estimating the term…
Abstract
A method is provided for executing a monitoring process during a manufacturing process to produce products. The method measures, in real time, performance variables of an upstream portion of a present manufacturing process, analyzes, with a processor, trends in the performance variables of the present manufacturing process together with data that models a portion of a subsequent manufacturing process, that occurs after the present manufacture process, to predict performance of the subsequent manufacturing process, sends trend analysis information to the present manufacturing process, and sends information to the subsequent manufacturing process.
Claims15
A method of executing a monitoring process during a manufacturing process to produce products, the method comprising the steps of:
- measuring, in real time, performance variables of an upstream portion of a present manufacturing process,
- analyzing, with a processor, trends in the performance variables of the present manufacturing process together with data that models a portion of a subsequent manufacturing process, that occurs after the present manufacture process,
- sending trend analysis information to the present manufacturing process, and
- sending information to the subsequent manufacturing process.
A computer readable medium having stored thereon sequences of instruction for executing a monitoring process during a manufacturing process to produce products, the sequence of instructions including instructions for performing the steps of:
- measuring, in real time, performance variables of an upstream portion of a present manufacturing process,
- analyzing, with a processor, trends in the performance variables of the present manufacturing process together with data that models a portion of a subsequent manufacturing process, that occurs after the present manufacture process,
- sending trend analysis information to the present manufacturing process, and
- sending information to the subsequent manufacturing process.
A system for preventing defects in products produced during a manufacturing process, the system comprising:
- process equipment at an upstream portion of the manufacturing process,
- process equipment at a portion of the manufacturing process downstream of the upstream portion of the manufacturing process,
- means for measuring, in real time, performance variables of the upstream process equipment,
- means for analyzing trends in the performance variables and for analyzing data modeling a downstream portion of the manufacturing process,
- means for sending trend analysis information to the upstream process equipment, and
- means for sending information to the downstream process equipment.
Dependencies are inferred from the claim text.