EP1573211A1 - Vorrichtung zur zustandsdiagnose einer fluidtechnischen komponente, insbesondere eines fluidikzylinders - Google Patents
Vorrichtung zur zustandsdiagnose einer fluidtechnischen komponente, insbesondere eines fluidikzylindersInfo
- Publication number
- EP1573211A1 EP1573211A1 EP03789082A EP03789082A EP1573211A1 EP 1573211 A1 EP1573211 A1 EP 1573211A1 EP 03789082 A EP03789082 A EP 03789082A EP 03789082 A EP03789082 A EP 03789082A EP 1573211 A1 EP1573211 A1 EP 1573211A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- diagnostic module
- control
- lines
- line
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
Definitions
- the invention relates to a device for diagnosing the condition of a fluid technology component, in particular a fluidic cylinder, which is connected to a fluid source via at least one fluid channel, with an electronic diagnostic module for diagnosing the condition of the component at least by detecting the fluid flow by means of a flow meter.
- the diagnostic module has at least one integrated fluidic passage line, which is provided with a flow meter for diagnosis and which, together with at least one fluid line arranged in series, forms the fluid channel, that at least one of the fluid lines with at least two integrated electrical or optical lines for data and / or energy transmission and that the diagnostic module is electrically connected to a control and / or monitoring center receiving diagnostic data.
- the diagnostic module is arranged in a simple manner simply by plugging one or two fluid lines between the fluid source and the fluid technology component.
- the integrated electrical or optical lines e.g. fiber optic cables
- the simple plugging together enables very quick and easy assembly, which also avoids errors due to incorrect wiring.
- the diagnostic module is arranged directly on the fluid technology component and is connected to the fluid source via a fluid line, the electrical or optical lines of the fluid line being transmission lines for data and supply energy. It is therefore only necessary to simply plug the diagnostic module together with the fluid technology component and to insert a fluid line between the diagnostic module and the fluid source.
- the diagnostic module is arranged directly on the fluid source and connected to the fluid technology component via a corresponding fluid line.
- the installation effort is correspondingly low here.
- Another advantage is the use of the common fluid source and a common communication interface (e.g. fieldbus connection).
- the diagnostic module is neither arranged on the fluid technology component nor on the fluid source, but is connected to the fluid source via a first fluid line and to the fluid technology component via a second fluid line.
- the electrical or optical and fluidic assembly can be carried out by simply plugging the two fluid lines together.
- the electrical lines of the second fluid line are control and / or transmission lines for supply energy, that is, for example, supply energy for a control valve on the fluid technology component, which is preferably designed as a fluidic cylinder.
- the control and / or monitoring center can either locate the fluid source in a pointing device or be arranged externally.
- an electrical branching or tapping element is expediently provided in the first fluid line for connecting an electrical cable leading to the externally arranged control and / or monitoring center.
- the diagnostic module can also be connected directly to the externally arranged control and / or monitoring center via a cable.
- the fluid technology component is designed as a fluidic cylinder, in particular provided with a control valve, wherein the device having the fluid source can also be provided with valve arrangements, for example a valve battery or a component thereof.
- the diagnostic module is preferably additionally provided with a pressure sensor and / or a temperature sensor.
- a sensor for detecting the electrical current to the fluid power component can also be included.
- the diagnostic module expediently has a microcomputer for evaluating the diagnostic data and transmitting it to the control and / or monitoring center, the microcomputer being designed in particular for receiving control data for controlling the fluid technology component.
- a switch that can be controlled by the microcomputer is suitable for switching the control and / or supply energy line leading to the fluid power component.
- Figure 1 shows a first embodiment with a in the
- FIG. 3 shows a third Embodiment in which the electrical lines to the control and monitoring center go directly from the diagnostic module
- FIG. 4 shows a fourth exemplary embodiment with a diagnostic module arranged on the fluid technology component
- FIG. 5 shows a fifth exemplary embodiment with a diagnostic module arranged on the fluid source.
- a fluid source 10 is connected via a fluid channel 11 to a fluidic component 12, which in the exemplary embodiment is designed as a fluidic cylinder 13 with an integrated control valve 14.
- the fluidic cylinder 13 can be designed as a single- or double-acting cylinder, but of course other fluid technology components or actuators are also possible, such as linear motors, valves, rotary actuators and the like.
- the fluid source 10 can be a simple branch 15 from a supply channel 16, but the fluid source 10 can also be used, for example, as a fluidic tion unit or valve battery can be formed, which has a control and / or data bus 17 which is connected to an internal or external control and / or monitoring center, not shown in Figure 1.
- the control and / or data bus 17 also has additional power lines, all lines being represented by a single line for simplicity.
- a coupling element 18 is connected to the control and / or data bus 17 as well as to the corresponding power lines via a bus connection element 19. Data and energy are then coupled in the coupling element 18 and fed to a common data / energy line 20.
- the fluid channel 11 between the fluid source 10 and the fluidic component 12 consists of the series connection of a first fluid line 21, a through line 22 through a diagnostic module 23 and a second fluid line 24.
- the two fluid lines 21 and 24 each have electrical lines integrated on or in the walls for data and / or energy transmission. These are generally two lines, although the number can also be higher. Instead of electrical lines, optical lines can also be provided, e.g. Light guide.
- the coupling element 18 in the fluid source 10 is electrically connected to a coupling element 25 in the diagnostic module 23 via the data / energy line 20.
- the data / energy line 20 is formed along the first fluid line 21 by its integrated electrical conductor in the wall.
- the coupling element 25 serves to decouple the received electrical or optical signals in data and energy.
- the data are fed to a microcomputer 26, while the decoupled energy via a circuit breaker 27, a current measurement sensor 28 and the integrated lines in the second Fluid line 24 is supplied to the control valve 14 of the fluidic component 12.
- a flow sensor 29 a pressure sensor 30 and a temperature sensor 31
- the corresponding parameters of the fluid in the through line 22 are detected and fed to the microcomputer 26.
- the fluid source 10, the diagnostic module 23 and the fluid technology component 12 are connected to one another by simply plugging them together with the two fluid lines 21, 24.
- the fluidic and electrical or optical connections are made at the same time.
- the fluid lines 21 and 24 preferably have the same design.
- a control signal for the control valve 14 is transmitted from the control and / or data bus 17 to the microcomputer 26. This converts the data into control signals for the circuit breaker 27, by which the control valve 14 is actuated. In the case of multi-way valves, several circuit breakers can also be provided, which control the various valve positions via several electrical lines. By detecting the fluidic flow in conjunction with its pressure and temperature, the respective states and positions of the fluidic cylinder 13 are recorded in the microcomputer 26 by comparison with stored characteristic curves or characteristic values. This is described in more detail in DE 19628221 C2 specified at the outset.
- the status data recorded in this way can be transmitted to the control and / or data bus 17 via the coupling element 25, the data / power line 20, the coupling element 18 and the bus connecting element 19, from where it is transmitted to a control and / or monitoring center can be, which is not shown.
- the microcomputer 26 can of course also have its own control intelligence have so that it controls the circuit breaker according to a predefined program depending on the state data determined.
- the current to the valve coil of the control valve 14 measured by means of the current measurement sensor 28 can also act in addition to the formation of the status data and also to control the circuit breaker 27.
- the second exemplary embodiment shown in FIG. 2 shows many similarities with the first exemplary embodiment, the same or equivalent components and assemblies being provided with the same reference symbols and not being described again.
- the data / energy line 20, starting from the coupling element 25 in the diagnostic module 23 is not connected to electronics in the fluid source 10, but rather directly to an external control and / or monitoring center 32.
- a branch member 33 is provided in the first fluid line 21, through which the data / energy line 20 branches off from the first fluid line 21 and leads to the control and / or monitoring center 32.
- first fluid line 21 with integrated electrical lines
- first fluid line 34 between the fluid source 10 (not shown here) and the diagnostic module 23, which does not contain any electrical lines.
- the microcomputer 26 is connected directly via an electrical interface 35 and at least one data line 36, which is used, for example, as an I / O control line or fieldbus line. device can be formed, connected to the external control and / or monitoring center, not shown here.
- the circuit breaker 27 is connected to a supply voltage source via a supply line 37.
- the diagnostic module 23 is arranged directly on the fluid power component 12 or is connected to it or integrated in it.
- the second fluid line 24 is therefore omitted.
- this exemplary embodiment corresponds to the first exemplary embodiment shown in FIG.
- the diagnostic module 23 is arranged directly on the fluid source 10 or connected to it.
- the first fluid line 21 or 34 is therefore omitted.
- the microcomputer 26 of the diagnostic module 23 is connected directly to the control and / or data bus 17 of the fluid source 10 via the bus connection element 19.
- the circuit breaker 27 is connected directly to corresponding power lines of the control and / or data bus 17.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10259394 | 2002-12-19 | ||
DE10259394A DE10259394A1 (de) | 2002-12-19 | 2002-12-19 | Vorrichtung zur Zustandsdiagnose einer fluidtechnischen Komponente, insbesondere eines Fluidikzylinders |
PCT/EP2003/013264 WO2004057197A1 (de) | 2002-12-19 | 2003-11-26 | Vorrichtung zur zustandsdiagnose einer fluidtechnischen komponente, insbesondere eines fluidikzylinders |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1573211A1 true EP1573211A1 (de) | 2005-09-14 |
EP1573211B1 EP1573211B1 (de) | 2007-05-30 |
Family
ID=32519104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03789082A Expired - Lifetime EP1573211B1 (de) | 2002-12-19 | 2003-11-26 | Vorrichtung zur zustandsdiagnose einer fluidtechnischen komponente, insbesondere eines fluidikzylinders |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1573211B1 (de) |
AT (1) | ATE363603T1 (de) |
DE (2) | DE10259394A1 (de) |
DK (1) | DK1573211T3 (de) |
WO (1) | WO2004057197A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007010115A1 (de) | 2007-02-28 | 2008-09-04 | Robert Bosch Gmbh | Pneumatikantrieb mit Zylinderschalter |
WO2010022746A1 (en) * | 2008-08-26 | 2010-03-04 | Navalimpianti S.P.A. | Measuring device for the measure of the position of fluid-driven actuators with regulation |
DK2567102T3 (en) * | 2010-05-06 | 2019-01-28 | Scancon Encoders As | Method and apparatus for determining the position of a piston in a hydraulic or pneumatic cylinder |
ITPR20120042A1 (it) * | 2012-07-02 | 2014-01-03 | Dvg Automation S P A | Apparecchio di comando e controllo delle funzioni di un attuatore |
DE202015006675U1 (de) | 2015-09-25 | 2015-11-09 | Aventics Gmbh | Hilfsvorrichtung zur Einstellung der Endlagendämpfung pneumatischer Zylinder |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0803653B1 (de) * | 1996-04-26 | 2000-08-02 | Hygrama Ag | Pneumatische Betätigungsanordnung |
DE19628221C2 (de) * | 1996-07-15 | 2000-05-31 | Festo Ag & Co | Verfahren und Vorrichtung zur Bestimmung von Betriebspositionen einer Arbeitseinrichtung |
US20010037689A1 (en) * | 2000-03-08 | 2001-11-08 | Krouth Terrance F. | Hydraulic actuator piston measurement apparatus and method |
WO2001066956A2 (en) * | 2000-03-08 | 2001-09-13 | Rosemount Inc. | System for controlling hydraulic actuator |
US6748968B1 (en) * | 2000-06-16 | 2004-06-15 | Arichell Technologies, Inc. | Method and apparatus for combined conduit/electrical-conductor junction installation |
DE10048049A1 (de) * | 2000-09-28 | 2002-05-02 | Festo Ag & Co | Fluidtechnische Einrichtung mit einer Diagnoseeinrichtung |
DE10049958B4 (de) * | 2000-10-10 | 2004-12-02 | Festo Ag & Co | Fluidtechnische Anordnung sowie Ventilanordnung und Aktuator hierfür |
DE20120609U1 (de) * | 2001-12-20 | 2002-03-21 | Festo Ag & Co | Diagnoseeinrichtung für eine fluidtechnische Einrichtung sowie damit ausgestattete fluidtechnische Einrichtung |
-
2002
- 2002-12-19 DE DE10259394A patent/DE10259394A1/de not_active Ceased
-
2003
- 2003-11-26 EP EP03789082A patent/EP1573211B1/de not_active Expired - Lifetime
- 2003-11-26 DK DK03789082T patent/DK1573211T3/da active
- 2003-11-26 WO PCT/EP2003/013264 patent/WO2004057197A1/de active IP Right Grant
- 2003-11-26 DE DE50307396T patent/DE50307396D1/de not_active Expired - Lifetime
- 2003-11-26 AT AT03789082T patent/ATE363603T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004057197A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE363603T1 (de) | 2007-06-15 |
WO2004057197A1 (de) | 2004-07-08 |
EP1573211B1 (de) | 2007-05-30 |
DE10259394A1 (de) | 2004-07-15 |
DK1573211T3 (da) | 2007-10-01 |
DE50307396D1 (de) | 2007-07-12 |
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