GB1075036A - Digital control device - Google Patents

Digital control device

Info

Publication number
GB1075036A
GB1075036A GB20328/65A GB2032865A GB1075036A GB 1075036 A GB1075036 A GB 1075036A GB 20328/65 A GB20328/65 A GB 20328/65A GB 2032865 A GB2032865 A GB 2032865A GB 1075036 A GB1075036 A GB 1075036A
Authority
GB
United Kingdom
Prior art keywords
gates
reverse
actual value
output
value
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
GB20328/65A
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
Priority claimed from DE1964D0045046 external-priority patent/DE1206509C2/en
Application filed by Demag Zug GmbH filed Critical Demag Zug GmbH
Publication of GB1075036A publication Critical patent/GB1075036A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/02—Comparing digital values
    • G06F7/026—Magnitude comparison, i.e. determining the relative order of operands based on their numerical value, e.g. window comparator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34062—Comparator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1066—Mechanical or optical alignment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mechanical Engineering (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Logic Circuits (AREA)
  • Control Of Stepping Motors (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

1,075,036. Electric selective signalling. DEMAG-ZUG G.m.b.H. May 13, 1965 [July 24, 1964], No. 20328/65. Addition to 1,074,336. Heading G4H. In a digital control device, a counter with five two-state stages supplies actual value signals to AND gates which also receive desired value signals via diodes, the outputs of half the AND gates being connected to a " forward " output and half to a " reverse " output, the "reverse" AND gates being closed to all actual value 1-states corresponding to a numerical value less than or equal to the desired value and the " forward " AND gates being closed to all desired value 1-states corresponding to a numerical value less than or equal to the actual value. A feedback positioning system incorporates the above arrangement for one decimal order, similar arrangements being provided for the other orders. The direction of the positioning motor is controlled by the " forward " and " reverse " outputs of the highest decimal order in which the desired and actual value digits are unequal, by means of inverters and OR gates (e.g. Fig. 2, not shown). Triggers (T1, T2, T3, Figs. 1A, 1B, not shown) respond to the number of AND gates producing a 1- output, and, together with " forward " and " reverse " signals, control logic circuitry (e.g. Fig. 3, not shown) to allow the positioning motor as the end-point is approached.
GB20328/65A 1964-07-24 1965-05-13 Digital control device Expired GB1075036A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED45032A DE1260012B (en) 1964-07-24 1964-07-24 Numerical comparator working decimally
DE1964D0045046 DE1206509C2 (en) 1964-07-25 1964-07-25 Numerical comparator

Publications (1)

Publication Number Publication Date
GB1075036A true GB1075036A (en) 1967-07-12

Family

ID=7048723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20328/65A Expired GB1075036A (en) 1964-07-24 1965-05-13 Digital control device

Country Status (4)

Country Link
CH (1) CH419291A (en)
DE (1) DE1260012B (en)
FR (1) FR88083E (en)
GB (1) GB1075036A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101581B (en) * 1959-07-30 1961-03-09 Siemens Ag Process for digital position control
DE1147665B (en) * 1960-05-20 1963-04-25 Westinghouse Electric Corp Digital position control device for machines

Also Published As

Publication number Publication date
CH419291A (en) 1966-08-31
FR88083E (en) 1966-12-02
DE1260012B (en) 1968-02-01

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