GB1074500A - Digital direction transmitter, especially for cranecontrolling apparatus - Google Patents

Digital direction transmitter, especially for cranecontrolling apparatus

Info

Publication number
GB1074500A
GB1074500A GB1685765A GB1685765A GB1074500A GB 1074500 A GB1074500 A GB 1074500A GB 1685765 A GB1685765 A GB 1685765A GB 1685765 A GB1685765 A GB 1685765A GB 1074500 A GB1074500 A GB 1074500A
Authority
GB
United Kingdom
Prior art keywords
output
gates
backward
flip
marks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1685765A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Demag Zug GmbH
Original Assignee
Demag Zug GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Demag Zug GmbH filed Critical Demag Zug GmbH
Publication of GB1074500A publication Critical patent/GB1074500A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2451—Incremental encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—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
    • G05B19/19—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 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
    • G05B19/21—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 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 using an incremental digital measuring device
    • G05B19/23—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 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 using an incremental digital measuring device for point-to-point control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence

Abstract

1,074,500. Electric Selective Signalling. DEMAG-ZUG G.m.b.H. April 21, 1965 [Sept. 1, 1964], No. 16857/65. Heading G4H. In a digital direction transmitter, in which marks provided along a path to be measured are scanned, the marks giving pulses to a forward or backward output, these are two tracks each consisting of a sequence of marks, the marks of one track partially overlapping the marks of the other so that signal pair sequences 10, 11, 01 and 01, 11, 10 are produced for forward and backward movements. The circuit, Fig. 1 (not shown), comprises a flip-flop (B1 which is controlled by the track signals (A and B) through inverters (II-14) and gates (K1, K2) so that output (4) gives a signal following the (B) track during forward movement and following the (A) track during backward movement. The output (3) has signals the inverse of these, i.e. (B) for forward and (A) for backward motion. These signals are delayed and made into a short pulse by capacitor (C) and inverted (at 15) to set a flip-flop (B2), reset by (A, B) via gate (K2). The output of this is (B) for forward and (A) for backward. Gates (K5 and K6) receive the output (3) from (B2) and output (4) from (B1). The output (4) of flip-flop (B2) is gated with the (A) signal at (K3) and with the (B) signal at (K4). Flip-flop-(B4) produces (A, B) for forward motion on output (3) and for backward motion on output (4). These are also connected to gates (K5 and K6). A further flip-flop (B3) is set by (A) and reset by (B). Corresponding outputs (3 and 4) are applied to gates (K5 and K6). The outputs of gates (K5 and K6) are inverted to apply " forward " and " backward " pulses respectively to counter inputs (E and F). The simultaneous control of gates (K5 and K6) by flip-flops (B3 and B4) ensures that no miscounting takes place upon reversal of direction between marks. The outputs of (B4) control gates (K7, K8) also receiving a signal (D) indicating equality between the desired position and the actual position. The outputs (G and H) allow movement of the controlled member back to the desired position if this position has been overrun.
GB1685765A 1964-09-01 1965-04-21 Digital direction transmitter, especially for cranecontrolling apparatus Expired GB1074500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0045323 1964-09-01

Publications (1)

Publication Number Publication Date
GB1074500A true GB1074500A (en) 1967-07-05

Family

ID=7048922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1685765A Expired GB1074500A (en) 1964-09-01 1965-04-21 Digital direction transmitter, especially for cranecontrolling apparatus

Country Status (2)

Country Link
CH (1) CH424148A (en)
GB (1) GB1074500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089511A1 (en) * 1982-03-09 1983-09-28 Siemens Aktiengesellschaft Method of evaluating output pulse trains of an incremental displacement sensor, and circuit arrangement for carrying out this method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089511A1 (en) * 1982-03-09 1983-09-28 Siemens Aktiengesellschaft Method of evaluating output pulse trains of an incremental displacement sensor, and circuit arrangement for carrying out this method

Also Published As

Publication number Publication date
CH424148A (en) 1966-11-15

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