Abstract:
The subject matter of the invention is a process for controlling a multiplicity of spray tools for the surface coating of vehicles or parts thereof. With stored program control, the settings for the multiplicity of spray tools which determine the paint flow through each tool are issued centrally to the control elements associated with the spray tools. The trajectory points for the tools, which are stored with coarse spacing or obtained by coarse interpolation from already stored trajectory points, are applied as reference values to the attitude controllers serving each spray tool; from the said position controllers, additional trajectory points are determined by fine interpolation between the transmitted trajectory points and processed in the position controller by means of actual position values.
Abstract:
Elements/functions forming part of a textile machine are controlled and supervised with the aid of a central unit, for example a computerized unit. Each feeder supplies information regarding its yarn/weft consumption to the unit, which add the yarn consumption of the feeders. The maximum yarn consumption is calculated and independent of the calculation the maximum speed limitation is determined.
Abstract:
A programmable machine is provided with a programmed computer and a number of actuators, the operation of the latter being controlled by the computer in conformity with this computer program. The computer also includes an operating program which co-operates w ith a display device and a data input device for the input of instructions to the computer. The operating program responds to a sequence of the entered instructions displayed on the display device having a separate display field for each actuator or a group of actuators and enabling an operator to enter instructions with the data input device into each field to define the movement of the respective actuator and the relationship between actuators. The display device illustrates the operating sequence of the machine as a diagram. The operating program translates this information into a machine code program controlling the operation of the actuators.
Abstract:
Un système de robot comprend des mains facilement interchangeables (74). Le système est conçu de manière à être commandé généralement par un ordinateur relié aux servo-moteurs (406, 408, 410) dans chaque main par l'intermédiaire d'un générateur analogique de largeur d'impulsion (214, 215) monté sur le robot. Le contrôleur de l'ordinateur peut également utiliser des circuits associés au robot pour obtenir des informations directement de chaque main.
Abstract:
Die Erfindung betrifft ein Steuersystem und ein entsprechendes Steuerverfahren zur Steuerung eines Roboters mit mehreren beweglichen Roboterachsen (A1-An), insbesondere für einen Lackierroboter oder einen Handhabungsroboter in einer Lackieranlage für Kraftfahrzeugkarosseriebauteile, mit einer zentralen Robotersteuerung (4) zur Steuerung des Roboters entsprechend einem vorgegebenen Steuerprogramm, und mit mehreren Antriebsreglern (AR1-ARn) zur Ansteuerung der einzelnen bewegliehen Roboterachsen (A1-An), wobei jeder der Antriebsregler (AR1-ARn) einer der Roboterachsen (A1-An) zugeordnet ist, sowie mit einer Datenverbindung (5) zwischen der zentralen Robotersteuerung (4) und den einzelnen Antriebsreglern (AR1- ARn) zur Übertragung von Steuerbefehlen von der Robotersteuerung (4) an die einzelnen Antriebsregler (AR1-ARn). Es wird vorgeschlagen, dass zumindest einer der Antriebsregler (AR1) eine Überwachungseinheit aufweist, die eine Kollisionsüberwachung durchführt, um eine Kollision des Roboters mit Raumbegrenzungen oder Personen zu verhindern.
Abstract:
A control system is disclosed for controlling the movement of a limited rotation motor. The control system includes a computer system and a closed-loop motor controller. The computer system is for generating command digital data including digital input commands for controlling the movement of the limited rotation motor. The closed-loop motor controller includes an input circuit for receiving the command digital data synchronous with a data input signal, a digital control system for processing the command digital data, an output circuit for providing a motor drive signal to the limited rotation motor, and a feedback circuit for providing digital feedback data to said digital control processing circuit. The digital control processing circuit providing closed-loop motor control calculations on a computation cycle that is synchronous with the data input signal.
Abstract:
A coordinative operation system for a CNC (computerized numeric controller) used for a transfer line or the like. Each CNC (10, 20) comprises a CNC control section (11, 21), a switch circuit (12, 22) for switching input/output signals, a RAM (13, 23) connected to the switch circuit (12, 22) and used for storing the input/output signals, and a PMC (programmable machine controller) (16, 26) connected to the RAM (13, 23), and a serial tranfer control circuit (15, 25) which are connected to the RAMs (13, 23) and transfer the input/output signals with other CNCs. The PMC (16) is designed so that it can receive the input/output signals of other CNC (20) by the serial transfer control circuit (15) or can transmit them. The CNCs (10, 20) can input/output their input/output signals through the circuits (15, 25), respectively. Accordingly, the signal transfer speed is high and a high speed coordinative operation is possible. The PMC (16) can receive directly the input/output signals of the other CNC (20) through the circuit (15, 25) and complicated control is possible.
Abstract:
In a system for the performance of plurality of functions each of the functions is allocated its own function control member comprising a microprocessor with the associated peripheral equipment, and one or more actuating devices. Each control member is capable of providing the control for functions of two or more kinds, and the different control members are mutually interchangeable. The control members are connected in one or more first wiring loops (40), each of which is connected to a main computer. The signal transmission in the first loop is performed digitally and in series. The transmission of the signals includes first signals emanating from a basic or operative program in the main computer, said first signals are transmitted during a start-up phase for the system and comprising for each control member information in respect of its adjustment in relation to a function control which is applicable to the type of function and/or the variation in the type of function effected by the control member during an operating phase which follows the start-up phase. The signal transmission also includes second signals emanating from a user program entered in the main computer, which second signals are transmitted in a cyclical fashion and which contain continuous information for each microprocessor relating to the manner in which the function served by the microprocessor is to be controlled. The actuating organs are supplied with energy via one or more second wiring loops (40c), each of which is connected to an energy source.
Abstract:
A method of sliding mode control which decreases the steady deviation from the control target and which improves control stability by adapting the control system to a change in the system parameter. The processor in a digital servo circuit of the servo control system calculates position deviation (ε), speed deviation (ε), a value of the switch-over plane (s) and a value of an integration element (∫)((ε + C.ε)) on the switch-over plane (100 to 102, 107, 113) based on an instructed position (Υr) and an actual position (Υ). The processor further calculates a first term and a second term of switch-over quantity (T1) according to a calculation formula determined depending upon the switch-over plane, position deviation and positive or negative sign to which the value of the integration element is corresponded (103 to 115). Then, based on a calculated value of switch-over quantity (T1) that is equal to the sum of the first and second terms and that satisfies the Liapunov stabilization condition, a torque instruction (T) is calculated that is sufficient to converge the characteristics of the control system to the switch-over plane (s = 0). As a result, the control system does not lose stability even when the system parameters undergo a change.
Abstract:
A numerical controller having a control function which permits a main axis to be stopped at any absolute position by a drive motor to determine the position of the main axis that controls the positioning. The numerical controller has storage means (6) for storing data related to a motor stop position and the rotational direction included in a control instruction via transfer means (3) which transfers the control instruction to the corresponding drive means, and has calculation means (7) which calculates a drive signal for stopping the motor at a predetermined position based on the stored data and feedback signals related to the speed and position of the motor. With the absolute position such as an angle and the rotational direction up to that position being instructed from the numerical controller, the motor side determines its position by itself.