Abstract: A method of transforming a G-code type part program into a STEP-NC language type part program is provided and more particularly, a method is provided for enabling a G-code type part program mainly used in the field to be easily applied to a STEP-NC controller without a troublesome correction. A STEP-NC language type part program is automatically created, which is composed of machining operation information, manufacturing feature information, machining strategy information and the like, through a process of analyzing G-codes from the G-code type part program and tool information. A method of transforming a G-code into a STEP-NC part program includes receiving a G-code part program, tools and a numerical controller; creating G-code block information, and partitioning the entire part program on a workingstep basis. The method further includes creating machining strategy information and creating the STEP-NC part program by arranging the machining workingsteps.

Abstract: Provided are a computer-aided design (CAD)/computer-aided engineering (CAE) system and a method for designing and analyzing a ubiquitous system. The CAD/CAE system includes: a design system which generates a system model in a 3-layer structure including an environment layer defining environmental elements and physical structures of the ubiquitous system, a component layer defining devices constituting the ubiquitous system, and a scenario layer representing behaviors of components of the ubiquitous system, and re-defines the system model in order to define a plurality of design alternatives; a simulator which is connected to the design system to simulate the system model designed by the design system; and an analysis system which is connected to the simulator to analyze results of the simulation performed by the simulator and recommend an optimal design alternative.

Abstract: A product lifecycle information management system using ubiquitous technology is provided. The system includes a service manager that comprises a service repository for registering a service using product information in a product lifecycle and multiple interface agents (IAs) for providing an interface for the service registered in the service repository. The system further includes multiple neighboring units that are connected to the service manager in order to register the service in the service manager and provide the service or that use the service registered in the service manager. The neighboring units include an integrated data storage for storing an integrated product lifecycle data model and ontology data, a Device to Ubiquitous (D2U) interface unit for providing an interface with a ubiquitous apparatus, and an external system interface unit for providing interfaces with a user terminal and an external application system.

Abstract: A product recovery management system is provided for assisting a worker who lacks professional knowledge or experiences of related products to efficiently, easily perform a product recovery work. The system includes a Device to Ubiquitous (D2U) interface module, a product recovery management system (PRMS) database (DB) that stores product information and various types of information related to product recovery, a product recognizing module that refers to one of the PRMS DB and the product lifecycle information infrastructure for information of a corresponding information using an identification (ID) of the product transmitted from the D2U interface module. The system further includes a recovery plan making module provides a user terminal of a worker with steps and related information necessary for a product recovery process through the user interface module using the product information collected from the product lifecycle information infrastructure.

Abstract: The present invention relates to a method of creating a non-linear process plan and an Internet-based STEP-NC system using the same, and more particularly, to a method of creating a non-linear process plan, wherein the non-linear process plan including information on a variety of alternative processes and machining sequences is established in consideration of situations in the field, thereby autonomously dealing with abnormal situations while executing optimal machining, and to an Internet-based STEP-NC system, wherein a STEP-NC part program in an XML format is created based on the established process plan so that process information can be easily exchanged with other systems via the Internet. Since the present invention provide a plurality of machining alternatives to the field, and thus, allow a STEP-NC machine tool to execute machining optimized depending on field situations and to autonomously deal with abnormal situations that may occur during machining.

Abstract: A method of transforming a G-code type part program into a STEP-NC language type part program is provided and more particularly, a method is provided for enabling a G-code type part program mainly used in the field to be easily applied to a STEP-NC controller without a troublesome correction. A STEP-NC language type part program is automatically created, which is composed of machining operation information, manufacturing feature information, machining strategy information and the like, through a process of analyzing G-codes from the G-code type part program and tool information. A method of transforming a G-code into a STEP-NC part program includes receiving a G-code part program, tools and a numerical controller; creating G-code block information, and partitioning the entire part program on a workingstep basis. The method further includes creating machining strategy information and creating the STEP-NC part program by arranging the machining workingsteps.

Abstract: An intelligent STEP-NC (Standard for the Exchange of Produce model-Numerical Controller) overcomes short-comings of conventional NCs with a closed structure The intelligent STEP-NC intelligently performs a machining process based on ISO 14649 data while autonomously coping with an emergency at a shop-floor. Thus, the discontinuity of information in a CAD-CAM-CNC chain where the current NCs are operated can be overcome and the concept of “design-to-manufacture” can be realized.

Abstract: An intelligent STEP-NC (Standard for the Exchange of Produce model-Numerical Controller) overcomes short-comings of conventional NCs with a closed structure The intelligent STEP-NC intelligently performs a machining process based on ISO 14649 data while autonomously coping with an emergency at a shop-floor. Thus, the discontinuity of information in a CAD-CAM-CNC chain where the current NCs are operated can be overcome and the concept of “design-to-manufacture” can be realized.

Abstract: A profile of a finished part is recognized based on an inputted CAD data. A delta volume for the finished part is decomposed based on information on cutting tools and the profile. Thereafter, a dependency graph representing precedence relation between the decomposed delta volumes is generated. And then, a process sequence graph representing process plans is generated based on the dependency graph. The delta volume decomposition is performed based on information on cutting tools and a machine configuration as well as part geometry, such that the decomposed delta volumes are suitable to be cut away from a raw stock by the cutting tools.

Abstract: A method for automatically generating a part program for us in a STEP-NC (STEP-Compliant Data Interface for Numerical Controls) controller in a SFP (shop-floor programming) system based on an ISO 14649 data model is provided. First, geometric kernel data is generated by interpreting a STEP physical file or an ISO 14649 part program. Then, manufacturing features are recognized from the geometric kernel data and a process plan according to the ISO 14649 is established. Thereafter, the process plan is edited and an ISO 14649 part program is generated. Subsequently, a tool path is created based on manufacturing feature information specified in the ISO 14649 part program and the produced tool path is verified in a CNC (computer-based numerical control) apparatus. By including functions of a CAD/CAPP/CAM system, the present invention makes it possible to readily generate a part program for use in the STEP-NC on the CNC controller.

Abstract: A method for automatically generating a part program for use in a STEP-NC (STEP-Compliant Data Interface for Numerical Controls) controller in a SFP (shop-floor programming) system based on an ISO 14649 data model is provided. First, geometric kernel data is generated by interpreting a STEP physical file or an ISO 14649 part program. Then, manufacturing features are recognized from the geometric kernel data and a process plan according to the ISO 14649 is established. Thereafter, the process plan is edited and an ISO 14649 part program is generated. Subsequently, a tool path is created based on manufacturing feature information specified in the ISO 14649 part program and the produced tool path is verified in a CNC (computer-based numerical control) apparatus. By including functions of a CAD/CAPP/CAM system, the present invention makes it possible to readily generate a part program for use in the STEP-NC on the CNC controller.