Abstract: An automatic reproduction test device in an embedded system to which external equipment (10) is connected. It includes a history storage unit (information storage 20) for storing operation events of the embedded system and events including state variations of the external equipment in a time series, and a reproduction test unit (reproduction test device 2) for reading out contents stored in the history storage unit in response to a reproduction instruction from outside, for reproducing an internal state of the embedded system in accordance with the contents read out, and for carrying out a reproduction test of the embedded system a prescribed number of times repeatedly.

Abstract: A program executing apparatus such as a programmable controller has a re-structureable address conversion section restructuring an address to generate a new address for specifying bit data that corresponds to each bit position in a physical memory or an I/O memory. Further, a program development supporting apparatus, such as a control program development supporting apparatus, has a conversion tool that generates configuration data describing a detailed restructure indication to enable the program executing apparatus to restructure the address, and a program making access to the restructured address.

Abstract: A simulation device is provided with a speed ratio determining portion and a speed determining portion for calculating the maximum feeding speed of an operative part from an interference detecting distance and an interpolation period, and replacing the feeding speed of the operative part, which is read out by a program analyzing portion, with the maximum feeding speed; and an interpolating portion for determining interpolated points of a moving path of the operative part from the feeding speed of the operative part, which is replaced by the maximum feeding speed by the speed ratio determining portion and the speed determining portion, and the interpolation period. An interference check on the operative part is made at an interpolated point determined by the interpolating portion.

Abstract: A simulation device is provided with a speed ratio determining portion and a speed determining portion for calculating the maximum feeding speed of an operative part from an interference detecting distance and an interpolation period, and replacing the feeding speed of the operative part, which is read out by a program analyzing portion, with the maximum feeding speed; and an interpolating portion for determining interpolated points of a moving path of the operative part from the feeding speed of the operative part, which is replaced by the maximum feeding speed by the replacing means, and an interpolation period. An interference check on the operative part is made at an interpolated point determined by the interpolating portion.

Abstract: A numerically controlled apparatus for a machine tool has a tool and machining condition automatically controlling function, and stores standard data of tools and machining conditions in a standard database. The input device of the apparatus inputs the users data of tools and machining conditions other than the contents of the standard database, and the apparatus stores the data inputted with the input device in one or more user databases. The tool and machining condition automatically determining function of the apparatus determines tool and machining condition data by utilizing both of the standard database and one or more the user databases.

Abstract: A machine tool is controlled in response to a numerical control program that is indicative of tool path data. A user selects a working region on which the machine tool will operate. A portion of the tool path data that corresponds to the selected working region is determined, so that both the selected working region and the portion of the tool path data may be displayed on a display. Such a display may also include a grid so that the user may select grid areas. Grid areas may be selected so that only data associated with the selected grid areas is modified, or to allow the user to modify a visible outline of the area to be worked, or to allow the user to select non-workable regions for which the original tool path data will not be modified. Further magnification may be based upon a predetermined magnification rate or a magnification rate selected by the user.

Abstract: A method of displaying on a graphic display a representation of a rotary body to be machined according to a machining program, the rotary body having a rotation axis about which the body rotates, in which an external cross-sectional shape of the body in a plane of the rotation axis is displayed in accordance with stored point data representing an external, closed line denoting the cross-sectional shape. Projected surfaces of the body and recessed surfaces of the body along the external line are represented by predetermined shading data dependent on the location of the respective surfaces with respect to the rotation axis and intervening surface lines.

Abstract: In a display apparatus equipped with a plurality of frame memories for keeping data to be used for display on a display section and an output logic for outputting the display data on the frame memories to the display section, for effective use to various CAD/CAM graphic applications, a switching operation for connection of the frame memories to the output logic is selectively effected through a software among a mode for connecting one of the frame memories to the output logic, a double-buffer mode for switching two of the frame memories at the timing of vertical retrace intervals and a mode for switching the plurality of frame memories at the timing of horizontal retrace intervals.

Abstract: A three-dimensional model displaying method of displaying on a display screen a three-dimensional model expressed in a computer in the field of CAD or CAM. The quadrangular patches of the upper interface of a three-dimensional model is approximated with rectangular regions along the x-axis and y-axis of a two-dimensional coordinate system on the display screen. Accordingly, it is unnecessary to perform the operation of painting quadrangles irregular in configuration, and therefore the patch painting process can be achieved at high speed and with high accuracy.

Abstract: A lathe cutting simulation method comprises the steps of preparing workpiece shading drawing data from workpiece shape data, displaying the shape of the workpiece by using the drawing data, computing the positions of the workpiece and tools on the basis of the input workpiece and tools information and updating workpiece shape data, updating the drawing data on the basis of the updated shape data, and displaying the entire workpiece based upon the updated drawing data.

Abstract: A dynamic simulation system in which an internal model is dynamically changed according to input data. The status of variation of the internal model is inputted, and the display and/or sound output of the internal model is dynamically changed according to the status of variation thus inputted. In the dynamic simulation, not only the state of a model is displayed, but also the status of variation of the model is outputted as display data or sound data. Accordingly, the operator can readily recognize the amounts of variation calculated during simulation.

Abstract: A method of detecting an interference in an apparatus such as a machining tool or robot which performs the asynchronous control of a plurality of mechanical systems. According to the detecting method, the highest degree of risk in a predetermined period of time and the highest risk position corresponding to the highest degree of risk can be detected so that figures are displayed as a motion simulation in such a manner that the mutual positions of the systems are moved with the advancement of the simulation while the highest degree of risk occurring in the predetermined period of time. As a result, the control of the mechanical systems can be achieved with high accuracy and ease.

Abstract: In a control device for writing data for a multi-window display system having a function to simultaneously display a plurality of pictures on a display surface, there are provided a write controlling mapping buffer storing at corresponding addresses numbers of window display regions for the data to be written into a display frame memory, and a window identification number register provided with a window identification number for the data to be written. The data can be written into the display frame memory only when output of the write controlling mapping buffer and output of the window identification number register agree with each other.