| IPC 6 English version | G05-G05B02404 |
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SECTION G | – PHYSICS |
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CONTROLLING; REGULATING (specially adapted to a particular field of use, see the relevant place for that field, e.g. A 62 C 37/00, B 03 B 13/00, B 23 Q) |
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CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (fluid-pressure actuators or systems acting by means of fluids in general F 15 B; valves per se F 16 K; characterised by mechanical features only G 05 G; sensitive elements, see the appropriate subclasses, e.g. G 12 B, subclasses of G 01, H 01; correcting units, see the appropriate subclasses, e.g. H 02 K) |
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Notes |
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(1) | This subclass covers features of control systems or elements for regulating specific variables, which are clearly more generally applicable. |
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(2) | This subclass does not cover applications of such systems or elements, which are covered by subclass G 05 D or G 05 F. |
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(3) | In this subclass, the following terms or expressions are used with the meanings indicated: |
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– | "automatic controller" means a system, circuit, or device in which a signal from the detecting element is compared with a signal representing the desired value and which operates in such a way as to reduce the deviation. The automatic controller generally does not include the sensitive element, i.e. that element which measures the value of the condition to be corrected, or the correcting element, i.e. that element which adjusts the condition to be corrected; |
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– | "electric" includes "electromechanical", "electrohydraulic" or "electropneumatic". |
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(4) | In this subclass, details of specific control systems are classified in the group relevant to the system, if not otherwise provided for. |
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1/ | 00 | Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values (comparing phase or frequency of two electric signals H 03 D 13/00) |
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1/ | 01 | . | electric [2] |
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1/ | 02 | . . | for comparing analogue signals [2] |
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1/ | 03 | . . | for comparing digital signals [2] |
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1/ | 04 | . . | with sensing of the position of the pointer of a measuring instrument |
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1/ | 06 | . . . | continuous sensing |
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1/ | 08 | . . . | stepwise sensing |
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1/ | 11 | . | fluidic [2] |
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5/ | 00 | Anti-hunting arrangements |
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5/ | 01 | . | electric |
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5/ | 04 | . | fluidic [2] |
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6/ | 00 | Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral, differential (in automatic controllers G 05 B 11/00) |
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6/ | 02 | . | electric |
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6/ | 05 | . | fluidic [2] |
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7/ | 00 | Arrangements for obtaining smooth engagement or disengagement of automatic control |
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7/ | 02 | . | electric [2] |
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7/ | 04 | . | fluidic [2] |
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9/ | 00 | Safety arrangements (G 05 B 7/00 takes precedence; safety arrangements in programme-control systems G 05 B 19/048, G 05 B 19/406; safety valves F 16 K 17/00; emergency protective circuit arrangements in general H 02 H) |
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9/ | 02 | . | electric |
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9/ | 03 | . . | with multiple-channel loop, i.e. redundant control systems [2] |
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9/ | 05 | . | fluidic [2] |
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11/ | 00 | Automatic controllers (G 05 B 13/00 takes precedence) |
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11/ | 01 | . | electric |
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11/ | 06 | . . | in which the output signal represents a continuous function of the deviation from the desired value, i.e. continuous controllers (G 05 B 11/26 takes precedence) |
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11/ | 10 | . . . | the signal transmitted being dc |
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11/ | 12 | . . . | the signal transmitted being modulated on an ac carrier |
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11/ | 14 | . . | in which the output signal represents a discontinuous function of the deviation from the desired value, i.e. discontinuous controllers (G 05 B 11/26 takes precedence) |
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11/ | 16 | . . . | Two-step controllers, e.g. with on/off action |
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11/ | 18 | . . . | Multi-step controllers |
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11/ | 26 | . . | in which the output signal is a pulse-train |
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11/ | 28 | . . . | using pulse-height modulation; using pulse-width modulation |
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11/ | 30 | . . . | using pulse-frequency modulation |
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11/ | 32 | . . | with inputs from more than one sensing element; with outputs to more than one correcting element |
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11/ | 36 | . . | with provision for obtaining particular characteristics, e.g. proportional, integral, differential |
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11/ | 38 | . . . | for obtaining a proportional characteristic |
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11/ | 40 | . . . | for obtaining an integral characteristic |
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11/ | 42 | . . . | for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D. |
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11/ | 44 | . | pneumatic only |
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11/ | 46 | . . | without auxiliary power |
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11/ | 48 | . . | with auxiliary power |
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11/ | 50 | . . . | in which the output signal represents a continuous function of the deviation from the desired value, i.e. continuous controllers |
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11/ | 52 | . . . | in which the output signal represents a discontinuous function of the deviation from the desired value, i.e. discontinuous controllers |
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11/ | 54 | . . . . | Two-step controllers, e.g. with on/off action |
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11/ | 56 | . . . . | Multi-step controllers |
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11/ | 58 | . . | with inputs from more than one sensing element; with outputs to more than one correcting element |
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11/ | 60 | . | hydraulic only |
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13/ | 00 | Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion (G 05 B 19/00 takes precedence; details of the computer G 06 F 15/18) |
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13/ | 02 | . | electric |
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13/ | 04 | . . | involving the use of models or simulators [3] |
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15/ | 00 | Systems controlled by a computer (G 05 B 13/00, G 05 B 19/00 take precedence; automatic controllers with particular characteristics G 05 B 11/00; computers per se G 06) |
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15/ | 02 | . | electric |
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17/ | 00 | Systems involving the use of models or simulators of said systems (G 05 B 13/00, G 05 B 15/00, G 05 B 19/00 take precedence; analogue computers for specific processes, systems or devices, e.g. simulators, G 06 G 7/48) |
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17/ | 02 | . | electric |
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19/ | 00 | Programme-control systems (specific applications, see the relevant places, e.g. A 47 L 15/46; clocks with attached or built-in means operating any device at a preselected time interval G 04 C 23/00; marking or sensing record carriers with digital information G 06 K; information storage G 11; time or time-programme switches which automatically terminate their operation after the programme is completed H 01 H 43/00) |
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19/ | 02 | . | electric |
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19/ | 04 | . . | Programme control other than numerical control, i.e. in sequence controllers or logic controllers (G 05 B 19/418 takes precedence; numerical control G 05 B 19/18) |
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19/ | 042 | . . . | using digital processors (G 05 B 19/05 takes precedence) [6] |
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19/ | 045 | . . . | using logic state machines, consisting only of a memory or a programmable logic device containing the logic for the controlled machine and in which the state of its outputs is dependent on the state of its inputs or part of its own output states, e.g. binary decision controllers, finite state controllers [6] |
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19/ | 048 | . . . | Monitoring; Safety [6] |
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19/ | 05 | . . . | Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts [5] |
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19/ | 06 | . . . | using cams, discs, rods, drums, or the like (mechanical programme-control apparatus G 05 G 21/00) |
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19/ | 07 | . . . | where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors [6] |
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19/ | 08 | . . . | using plugboards, cross-bar distributors, matrix switches, or the like |
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19/ | 10 | . . . | using selector switches |
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19/ | 12 | . . . | using record carriers |
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19/ | 14 | . . . . | using punched cards or tapes |
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19/ | 16 | . . . . | using magnetic record carriers |
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19/ | 18 | . . | Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form (G 05 B 19/418 takes precedence) [6] |
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19/ | 19 | . . . | characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path [3,6] |
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Note |
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In this group, the measuring system for an axis is used to measure the displacement along that axis. This measurement is used as position-feedback in the servo-control system. [6] |
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19/ | 21 | . . . . | using an incremental digital measuring device [3] |
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19/ | 23 | . . . . . | for point-to-point control [3] |
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19/ | 25 | . . . . . | for continuous-path control [3] |
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19/ | 27 | . . . . | using an absolute digital measuring device [3] |
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19/ | 29 | . . . . . | for point-to-point control [3] |
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19/ | 31 | . . . . . | for continuous-path control [3] |
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19/ | 33 | . . . . | using an analogue measuring device [3] |
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19/ | 35 | . . . . . | for point-to-point control [3] |
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19/ | 37 | . . . . . | for continuous-path control [3] |
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19/ | 39 | . . . . | using a combination of the means covered by at least two of the preceding groups G 05 B 19/21, G 05 B 19/27 and G 05 B 19/33 [3] |
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19/ | 40 | . . . . | Open loop systems, e.g. using stepping motor [3] |
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19/ | 401 | . . . | characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes (G 05 B 19/19 takes precedence) [6] |
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19/ | 402 | . . . | characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position (G 05 B 19/19 takes precedence) [6] |
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19/ | 403 | (transferred to G 05 B 19/402, G 05 B 19/414, G 05 B 19/4155, covered by G 05 B 19/41) |
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19/ | 404 | . . . | characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia (G 05 B 19/19, G 05 B 19/41 take precedence) [6] |
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19/ | 405 | (transferred to G 05 B 19/406, G 05 B 19/408, G 05 B 19/409) |
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19/ | 406 | . . . | characterised by monitoring or safety (G 05 B 19/19 takes precedence) [6] |
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19/ | 4061 | . . . . | Avoiding collision or forbidden zones [6] |
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19/ | 4062 | . . . . | Monitoring servoloop, e.g. overload of servomotor, loss of feedback or reference [6] |
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19/ | 4063 | . . . . | Monitoring general control system (G 05 B 19/4062 takes precedence) [6] |
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19/ | 4065 | . . . . | Monitoring tool breakage, life or condition [6] |
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19/ | 4067 | . . . . | Restoring data or position after power failure or other interruption [6] |
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19/ | 4068 | . . . . | Verifying part programme on screen, by drawing or other means [6] |
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19/ | 4069 | . . . . | Simulating machining process on screen (G 05 B 19/4068 takes precedence) [6] |
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19/ | 407 | (transferred to G 05 B 19/416) |
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19/ | 408 | . . . | characterised by data handling or data format, e.g. reading, buffering or conversion of data [6] |
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19/ | 409 | . . . | characterised by using manual data input (MDI) or by using control panel, e.g. controlling functions with the panel; characterised by control panel details, by setting parameters (G 05 B 19/408, G 05 B 19/4093 take precedence) [6] |
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19/ | 4093 | . . . | characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine [6] |
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19/ | 4097 | . . . | characterised by using design data to control NC machines, e.g. CAD/CAM (G 05 B 19/4093 takes precedence; CAD in general G 06 F 17/50) [6] |
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19/ | 4099 | . . . . | Surface or curve machining, making 3D objects, e.g. desktop manufacturing [6] |
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19/ | 41 | . . . | characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path (G 05 B 19/25, G 05 B 19/31, G 05 B 19/37, G 05 B 19/39, G 05 B 19/40 take precedence) [3,6] |
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19/ | 4103 | . . . . | Digital interpolation [6] |
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19/ | 4105 | . . . . | Analog interpolation [6] |
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19/ | 413 | (transferred to G 05 B 19/4105) |
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19/ | 414 | . . . | Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller [6] |
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19/ | 415 | (transferred to G 05 B 19/4103) |
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19/ | 4155 | . . . | characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme [6] |
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19/ | 416 | . . . | characterised by control of velocity, acceleration or deceleration (G 05 B 19/19 takes precedence) [6] |
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19/ | 417 | (transferred to G 05 B 19/418) |
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19/ | 418 | . . | Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM) [6] |
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19/ | 42 | . . | Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine |
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19/ | 421 | . . . | Teaching successive positions by mechanical means, e.g. by mechanically-coupled handwheels to position tool head or end effector (G 05 B 19/423 takes precedence) [6] |
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19/ | 423 | . . . | Teaching successive positions by walk-through, i.e. the tool head or end effector being grasped and guided directly, with or without servo-assistance, to follow a path [6] |
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19/ | 425 | . . . | Teaching successive positions by numerical control, i.e. commands being entered to control the positioning servo of the tool head or end effector [6] |
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19/ | 427 | . . . | Teaching successive positions by tracking the position of a joystick or handle to control the positioning servo of the tool head, master-slave control (G 05 B 19/423 takes precedence) [6] |
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19/ | 43 | . | fluidic [3] |
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19/ | 44 | . . | pneumatic [3] |
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19/ | 46 | . . | hydraulic [3] |
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21/ | 00 | Systems involving sampling of the variable controlled (G 05 B 13/00 to G 05 B 19/00 take precedence; transmission systems for measured values G 08 C; electronic switching or gating H 03 K 17/00) |
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21/ | 02 | . | electric |
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23/ | 00 | Testing or monitoring of control systems or parts thereof (monitoring of programme-control systems G 05 B 19/048, G 05 B 19/406) |
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23/ | 02 | . | Electric testing or monitoring |
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24/ | 00 | Open-loop automatic control systems not otherwise provided for [2] |
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24/ | 02 | . | electric [2] |
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24/ | 04 | . | fluidic [2] |
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