EP0549649B1 - Verfahren zum überprüfen der güte eines gegenstandes oder zustandes - Google Patents

Verfahren zum überprüfen der güte eines gegenstandes oder zustandes Download PDF

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Publication number
EP0549649B1
EP0549649B1 EP91916560A EP91916560A EP0549649B1 EP 0549649 B1 EP0549649 B1 EP 0549649B1 EP 91916560 A EP91916560 A EP 91916560A EP 91916560 A EP91916560 A EP 91916560A EP 0549649 B1 EP0549649 B1 EP 0549649B1
Authority
EP
European Patent Office
Prior art keywords
value
sensed
quality
reference value
values
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 - Lifetime
Application number
EP91916560A
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German (de)
English (en)
French (fr)
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EP0549649A1 (de
Inventor
Bernd Brandes
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Individual
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Individual
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems

Definitions

  • the invention is based on a method according to the preamble of claim 1.
  • the comparison value may appear too high for one person responsible for quality, while another person which could have the damage, the comparison value still seems too low. It was therefore possible that exactly the same circumstances led to the accusation of a late notification for another user and the accusation of an early notification for another user.
  • the invention has for its object to provide a method for checking the quality of an object or condition that largely avoids such discretions and discrepancies and adapts better to practical circumstances in the quality check.
  • the initial quality value is initially accepted as normal.
  • the comparison value is set, for example, somewhat below the actual initial quality value. This can happen automatically. If the actual quality now changes in the course of the monitoring, the comparison value also changes automatically in the sense that it is constantly a certain absolute or relative distance below the actual quality value. However, the method or the device for carrying out the method is designed in such a way that the comparison value may increase, but it cannot easily decrease again. If the actual quality value remains constant, the comparison value also remains constant. However, if the quality drops, the comparison value does not drop, but also remains constant.
  • the quality value thus drops by a certain amount, it finally falls below the quality comparison value.
  • a lack of goodness is indicated.
  • the comparison value is therefore always automatically adapted to the actual quality value and not a constant variable.
  • One advantage is that in many cases the human being is no longer required as a constant monitor.
  • reports about a lack of quality, which does not exist per se, can be largely avoided.
  • a sudden drop in quality, which can cause later damage, is detected very quickly, so that appropriate measures can be initiated. It is therefore also possible to monitor a condition that is bad per se with regard to its further course.
  • the threshold is on a still acceptable qualitative condition.
  • the process or the device then works on the premise: the condition may not be optimal. However, if it doesn't get worse than it is now, it can still be called good.
  • the method thus opens up new fields of application for previously existing devices for checking the quality of objects or states.
  • the "GOOD" state is defined as the manually confirmed value or a better value that occurred later.
  • Fig. 1 shows the curve for the course of the quality G of an object or state as a function of time t.
  • a constant comparison value GV is effective. If the constant comparison value GV is undershot at time t1, poor quality is indicated. In any case, a lack of quality is assumed if the quality G is below the comparison value GV, ie also if the initial quality GA is already below the comparison value GV.
  • the quality has the initial quality value GA at the beginning t0.
  • the comparison value GV automatically adapts to this quality value and lies a distance A below the initial quality value GA.
  • the actual quality increases at time t1.
  • the comparison value GV now changes accordingly such that the distance A with which the GV is below G remains approximately constant. If a slight drop in quality G occurs at time t2-t3, but the comparison value GV is not undercut, the quality value is still indicated as normal.
  • the actual quality value G drops.
  • the comparison value GV does not drop now, but remains constant.
  • the corresponding device or circuit contains means that prevent a drop in GV.
  • the quality value G falls below the comparison value GV.
  • a constant distance A is useful for measuring tasks with a linear measured variable (for example, for the level of a container, which may rise, but may never decrease by more than the height x). With other measured variables, logarithmic characteristic curves often result, which are accordingly considered better as a proportion.
  • curve G shows alternatively a proportional behavior of the value GV with, for example, 50% G, as is useful with logarithmic characteristics.
  • the corresponding relative distance between the curves G and GV to be compared is denoted by A '.
  • curve GV of the comparison value follows curve G of the actual quality only in the direction of an improvement. Therefore, curve G intersects curve GV with a correspondingly strong drop in quality at time t5.
  • the comparison value GV can be reduced to such a value (set) or set that the comparison curve GV is again at a desired distance A (FIG. 2) or A '(FIG. 3) below curve G begins.
  • the object O to be checked is connected via a measuring device M for measuring the instantaneous value to the comparator C, the output of which is connected to a display device A, for example an indicator or a facility for evaluating statements.
  • the comparative value GV is also applied to the comparator C and is controlled via the or another measuring circuit M as a function of the actual quality value G of the object O. If, for example, the measurement and checking of object O begins, the operator can actuate a handle 1, for example a "set" key. By means of this deliberate setting or actuation, the comparison value GV can be adapted to the current quality value G of the object O.
  • the device can be dimensioned such that at any time the comparison value GV for the actual quality value is defined as a normal value by actuating the handle 1, for example, when the handle 1 is actuated, the comparison value GV according to FIG. 2 or 3 is predetermined a little below the actual value Sets quality values.
  • the handle 1 can thus be designed as a set key for executing a predetermined preset command and / or for setting the distance A, A '. Key 1 or another key can also be used to switch off an automatic update of comparable GV be formed. A corresponding curve is labeled GVs in FIG. 6.
  • the handle 1 is assigned to a memory which is adjustable and of the measured quality value G. deductible base amount.
  • the memory is dimensioned such that it only allows a reduction of the comparison value by means of the handle 1.
  • the circuits F1, F2 are preferably based on characteristic curves and gains, e.g. Factor 1, 2 or the like can be set.
  • Fig. 5 shows a modification of Fig. 4, in which a microprocessor performs the comparison.
  • a flow chart for such a microprocessor is shown in FIG.
  • the statement G less than GV yes could trigger an alarm.
  • the handle 1 in FIG. 5 (set), actuated as a key, is actuated by the alarm, the "bad value” that has just been measured is defined as a "quality value” and used as the basis for the further measurement.
  • FIG. 7 summarizes the curve of the actual quality value G and curves of comparison values GVa and GVv according to FIGS. 2, 3 and a curve for a non-automatically adjusted comparison value GVs (s for static).
  • curves Go and Gu are also drawn.
  • the curves Go and Gu form a limitation of the bandwidth for the comparison value GV.
  • All curves GV shown in FIG. 7 lie below the curve of the actual quality value G if, for example, there is a deterioration in the direction of an increase in moisture. It is but it is also possible to carry out the measurement in such a way that dehydration is detected as "worse". Then a check for minimum values would take place, in which the comparison value curve runs above the instantaneous value curve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Paper (AREA)
EP91916560A 1990-09-22 1991-09-17 Verfahren zum überprüfen der güte eines gegenstandes oder zustandes Expired - Lifetime EP0549649B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4030108 1990-09-22
DE4030108A DE4030108A1 (de) 1990-09-22 1990-09-22 Verfahren zum ueberpruefen der guete eines gegenstandes oder zustandes
PCT/EP1991/001763 WO1992005522A1 (de) 1990-09-22 1991-09-17 Verfahren zum überprüfen der güte eines gegenstandes oder zustandes

Publications (2)

Publication Number Publication Date
EP0549649A1 EP0549649A1 (de) 1993-07-07
EP0549649B1 true EP0549649B1 (de) 1994-07-20

Family

ID=6414809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91916560A Expired - Lifetime EP0549649B1 (de) 1990-09-22 1991-09-17 Verfahren zum überprüfen der güte eines gegenstandes oder zustandes

Country Status (14)

Country Link
US (1) US5372029A (ja)
EP (1) EP0549649B1 (ja)
JP (1) JPH06500875A (ja)
KR (1) KR930702732A (ja)
AT (1) ATE108921T1 (ja)
CA (1) CA2092095A1 (ja)
CZ (1) CZ42893A3 (ja)
DE (2) DE4030108A1 (ja)
DK (1) DK0549649T3 (ja)
FI (1) FI931262A0 (ja)
HU (1) HUT68348A (ja)
LT (1) LTIP583A (ja)
SK (1) SK21193A3 (ja)
WO (1) WO1992005522A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686378A5 (de) * 1992-10-12 1996-03-15 Rieter Ag Maschf Maschinenverwaltungssystem.
US5553479A (en) * 1993-03-24 1996-09-10 Flowline Inc. Threshold level calibration method and apparatus
US5736928A (en) * 1995-09-01 1998-04-07 Pittway Corporation Pre-processor apparatus and method
US7098669B2 (en) * 2003-10-01 2006-08-29 Flowline, Inc. Depth determining system
US9751056B2 (en) 2012-01-23 2017-09-05 Merit Medical Systems, Inc. Mixing syringe
US8834449B2 (en) 2012-01-23 2014-09-16 Ikomed Technologies, Inc. Mixing syringe

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE322288B (ja) * 1967-11-17 1970-04-06 Ericsson Telefon Ab L M
FR1599340A (ja) * 1968-03-29 1970-07-15
DE2212305A1 (de) * 1972-03-14 1973-09-20 Siemens Ag Schaltungsanordnung zur darstellung eines toleranzschemas und einer bildkurve auf der schreibflaeche eines zwei-koordinaten-sicht- oder -registriergeraetes
US3995478A (en) * 1972-06-09 1976-12-07 Industrial Nucleonics Corporation Plural interrelated set point controller
FR2404881A1 (fr) * 1977-10-03 1979-04-27 Commissariat Energie Atomique Procede et dispositif de detection de presence d'un phenomene physique
DE3127324A1 (de) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur erhoehung der ansprechempfindlichkeit und der stoersicherheit in einer gefahren-, insbesondere brandmeldeanlage
JPS59154321A (ja) * 1983-02-22 1984-09-03 Toshiba Mach Co Ltd モニタリングデ−タ表示装置
DE3624119A1 (de) * 1986-07-17 1988-01-21 Rhein Westfael Elect Werk Ag Vorrichtung zur simulation des betriebes einer druckwasserreaktoranlage
DE3624419A1 (de) * 1986-07-19 1988-01-28 Staudacher Horst Vorrichtung zur objektkontrolle
US5084825A (en) * 1988-03-07 1992-01-28 Bct Spectrum Inc. Process control with guard band and fault limit
DE3808128A1 (de) * 1988-03-11 1989-09-28 Wiedemann Gert Dipl Ing Fh Verfahren zur automatischen erarbeitung von grenzwerten und deren kombination bei der objektiven geraeuschpruefung durch iterative klassierung
US5084696A (en) * 1991-01-24 1992-01-28 Aritech Corporation Signal detection system with dynamically adjustable detection threshold
US5161405A (en) * 1991-06-03 1992-11-10 Ford New Holland, Inc. Clutch pedal positon sensor continuous calibration

Also Published As

Publication number Publication date
EP0549649A1 (de) 1993-07-07
DK0549649T3 (da) 1994-11-14
KR930702732A (ko) 1993-09-09
ATE108921T1 (de) 1994-08-15
DE4030108C2 (ja) 1993-07-01
US5372029A (en) 1994-12-13
SK21193A3 (en) 1993-07-07
JPH06500875A (ja) 1994-01-27
CZ42893A3 (en) 1993-07-14
LTIP583A (en) 1994-12-27
FI931262A (fi) 1993-03-22
HUT68348A (en) 1995-06-28
DE4030108A1 (de) 1992-04-02
DE59102289D1 (de) 1994-08-25
HU9300200D0 (en) 1993-04-28
FI931262A0 (fi) 1993-03-22
WO1992005522A1 (de) 1992-04-02
CA2092095A1 (en) 1992-03-23

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