摘要:
A bus connection system in which data transmission and reception between a central processing unit and a memory, an input/output control circuit or like peripheral circuit is performed via a bus. A plurality of buses are each connected to the central processing unit via a driver and a receiver, and the driver and the receiver are controlled by the central processing unit.
摘要:
A CPU card, a servo card and a display card are replaceably mounted on a CNC controller-printed circuit board which is fixed to the reverse side of a liquid crystal display unit, and execute a CNC control function. Further, a Programmable Machine Control, a spindle interface circuit and a memory means are mounted on the printed circuit board. These elements are connected with a bus. This arrangements provide a small-size and thin-type CNC controller. The CNC controller is connected to each of servo amplifiers for axes through a serial servo including an optical fiber.
摘要:
A high-speed machining system for executing a machining program for a numerical control apparatus at high speed, in which the numerical control apparatus incorporates a hard disk drive (20) for storing a machining program for numerical control, a hard disk control circuit (15), a direct memory access control circuit (14) for transferring the machining program from the hard disk control circuit (15) to a RAM (13), and a microprocessor (12).The microprocessor (12) converts the machining program stored in the RAM (13) into minute amounts of movement for each axis and transfers the resulting data to a numerical control apparatus CNC 2. Therefore, a high-speed data transfer is possible and high-speed machining can be performed with a simple structure.
摘要:
A picture processing apparatus inputs window data (W) to look-up tables (TBL) in which operators (G or F) to be applied to pixel data (x) are stored in correlation to the locations of the pixel data. By switching between the operators (G or F) contained in the look-up tables (TBL), window processing corresponding to a data address (i,j) is performed on input pixel data (x.sub.ij).
摘要:
The invention is a servomotor control apparatus for controlling the positioning of a movable element of an industrial robot or NC machine tool. An NC unit or a robot controller detects displacement from a movable element that is to be positioned, such as a table, forms a position command regarding a servomechanism, and has a correction circuit (A) which receives quadrant data (BLF) regarding a backlash correction command. When there is a quadrant reversal for each axis of the movable element, frictional torque corresponding to the axis is stored and a torque correction command (FR) corresponding thereto is outputted. A torque command of a fully-closed loop servo system for performing control based on a fed back position detection signal is corrected by the torque correction command. The servomotor control apparatus can be applied to semi-closed loop servo system in which a backlash correction is possible, and not just to a fully-closed loop servo system.
摘要:
A cathode ray tube (CRT) controller (6) reads out a predetermined picture from a frame memory (2) storing a picture to be processed, and generates a bit pattern with respect to a window memory (5), having a size corresponding to the frame memory (2) and storing a bit pattern which specifies the validity or invalidity of picture processing. The pattern output by the CRT controller (6) controls the processing of the frame memory (2), so that picture processing is executed solely with respect to picture data in an area of the frame memory (2) specified by the bit pattern.
摘要:
A servo control system has a first integrator to which the speed of a servomotor is fed back and a second integrator to which the speed of a mechanical load of low rigidity is fed back. The speed of the servomotor and the speed of the mechanical load driven by the servomotor are simultaneously reflected at a prescribed ratio on a transfer function of the servo control system, whereby appropriate servo control is made possible for the mechanical load to achieve speed control having a quick response and stability.
摘要:
A robot control apparatus according to the present invention includes a limiter, used to limit the operating range of each axis of a robot mechanism. The limiter includes a photo-interrupter where, if a light-interrupting disk, attached to one side of a movable element of the robot mechanism, arrives at a predetermined position and cuts off the luminous flux passing through an optical path provided on the other side of the movable portion then a limiting signal is provided to a control unit. Optical fiber cables couple the photo-interrupter with a light-emitting section and light-receiving section of the control unit, which is installed at a position remote from the robot mechanism.
摘要:
A servomotor drive control system in which current control of a servomotor is performed by a microprocessor on the basis of a current feedback signal of the servomotor an interrupt generating circuit interrupts the microprocessor a circuit for storing an interrupt period and a current command applied to the servomotor are also included in the system. The arrangement is such that an interrupt period is set in dependence upon the rating of the servomotor being driven and controlled.
摘要:
The present invention is directed to an arithmetic which calculates the spatial product sum of each of a plurality of picture element data stored in a frame memory, through utilization of load coefficients with N rows and N columns stored in a coefficient memory. The results of calculation for pieces of picture element data of one row of the frame memory and load coefficients of one row are added to the contents of shift registers corresponding to picture elements. This operation is repeated N times for different rows of the frame memory and different load coefficients. Thus, the spatial product sum calculation is performed at high speed using a small number of multipliers.