EP0937965A1 - Positioniersystem - Google Patents
Positioniersystem Download PDFInfo
- Publication number
- EP0937965A1 EP0937965A1 EP99102219A EP99102219A EP0937965A1 EP 0937965 A1 EP0937965 A1 EP 0937965A1 EP 99102219 A EP99102219 A EP 99102219A EP 99102219 A EP99102219 A EP 99102219A EP 0937965 A1 EP0937965 A1 EP 0937965A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- code
- positioning system
- rail
- area
- positioning
- 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
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000003550 marker Substances 0.000 claims description 7
- 239000011888 foil Substances 0.000 abstract 2
- 238000005259 measurement Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/021—Measuring and recording of train speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/026—Relative localisation, e.g. using odometer
Definitions
- the invention relates to a positioning system for positioning at least one along a positioning unit movable unit, the Position of the unit to be positioned a code rail along the positioning path is arranged and the unit to be positioned is a code rail has reading reading device.
- Such a positioning system is known for example from EP-A1 209 076.
- the code rail which is designed for example as a slotted plate
- an incremental code i.e. there are regularly spaced marks on it in the form of openings provided by means of a light barrier on both Sides of the slotted plate is arranged to be scanned.
- Relative values can be specified as target values for the position. Disadvantageous the fact is that the absolute values of the position are not always reliably available stand. For example, in the event of malfunctions, such as a power failure, get lost.
- the object of the invention is to provide a positioning system in which in addition to Relative values also absolute values of the position are recorded, the system should be inexpensive and the elements required to capture the position one should have as little space as possible.
- the code rail has first areas with a Has incremental code and second areas with an absolute code.
- a reading device for such a busbar advantageously has at least one front transducer and one rear transducer pointing towards the code rail are so far apart that at least one of the Transducer always lies in an area of the code rail that has an incremental code having.
- Two front and two rear sensors are advantageously provided, so that the direction of movement can also be determined.
- the units to be positioned become self-propelled Carriage units 1 formed, which along a positioning path in the form of a Rail 2 are movable.
- the self-driving wagon units a motor 30 controlled by a car controller 3.
- the energy supply takes place via power supply lines 5 and for controlling the carriage control 3
- a system control 4 provides one or more control lines 6.
- the power supply lines 5 and the control lines 6 are as conductor lines trained and are made by sliding contacts of the self-propelled carriage unit 1 scanned.
- Such systems for transporting loads are, for example, from Production lines known in the automotive industry, and in DE-GM 297 18 597.7 describes a control device for such a system, which a Transmission of control signals from the system controller 4 to a car controller 3 using only a single additional control line 6 enables.
- the Bar code can be read by a reading device 8, such a reading device 8 on each of the self-propelled carriage units 1 at the level of the code rail 7 is arranged.
- the data read from the code rail 7 are used in the Reading device 8 actual values of the position or the speed formed, which via serial interfaces in the reading device 8 and the carriage control 3 and a data line 9 to the car control 3 are transmitted.
- the car control 3 are the actual values of the positions or speeds of the self-propelled Carriage units with the setpoints specified by the system control 4 compared and from the deviations in the respective car control Adjustment and control processes for the drive motor triggered.
- the running rail 2 has the shape of a double T-beam, the top of which is the tread for the wheels of the self-propelled car units forms.
- a busbar holder 10 attached on one of the side surfaces of the running rail 2 .
- This has latching elements 11, between which the power supply lines 5 and the control line 6 can be snapped.
- the Locking elements 11 of the busbar bracket 10, the code rail 7 attachable. How 4 shows, for this purpose the code rail has latching elements 12 which on the Rear of the carrier 13 are arranged. These locking elements 12 of the code rail 7 can be snapped into the locking elements 11 of the busbar holder 10.
- a retroreflective film 14 is glued to the front of the carrier 13. This film 14 throws light rays upon it in the manner of a cat's eye the direction they came from.
- the film 14 is with a bar code provided, as can be seen from Fig. 3.
- the individual code lines 15 are thereby formed by applying a black (light absorbing) color, for example by printing in a roll screen printing process.
- the bar code of the code rail 7 has first areas 16 and second areas 17 on.
- the code attached to the code rail is a Incremental code
- an absolute code is attached in the second areas 17 .
- An incremental code is characterized by uniform distances 18 between the individual Codings (here code lines 15), however, are with an absolute code different distances between the individual codes.
- the same reference distance is also in the second areas 17 with the absolute code as the distance 18 between the code lines in the first areas 16 with uses the incremental code, with either a code line 15 or no code line 15 is present, making a logical 1 or a logical 0 is encoded.
- the code lines 15th of the second area 17 binary numbers are formed which represent the absolute position of the specify the respective area 17. For example, the length of such binary number is 10 bits.
- first areas 16 are area change markings 19 provided by code lines with a larger Width, preferably a width at least twice as large as the code lines are formed within the first and second areas.
- the lengths 20 of the first Regions 16 are greater than the lengths 21 of the second regions 17, preferably the first regions 16 are at least twice as long as the second regions 17.
- FIG. 5 schematically shows the front of a reading device 8 facing in the direction of the code rail.
- This has two front sensors 22, 23 and two rear sensors 24, 25.
- Each of these sensors 22, 23, 24, 25 is formed by an infrared transmitter 26 and an infrared receiver 27.
- the infrared ray is reflected by the retroreflective sheeting 14, with the exception of the locations at which a code line 15 is located, onto the infrared receiver 27 and is detected by the latter.
- the distance 28, by which the two front sensors 22, 23 are arranged offset from one another in the direction of the code rail, is approximately a quarter of the distance 18 between two code lines 15 in the first region 16. This allows the phase comparison between the pulsed signals of the infrared receiver to be used Sensor 22 and those of the infrared receiver of the sensor 23, the direction of movement can be determined.
- the two rear sensors 22, 23 also have the same distance 28, from whose signals the direction of movement can therefore also be determined.
- a Reference run of these units carried out.
- the unit moves with one defined speed.
- crossing an area change marker 19 this is recognized by the reading device on the basis of the length of the dark signal.
- Out the distance between two successive area change markings 19 determines whether the front pickups 22, 23 and the rear pickups 24, 25 are located in a first area 16 or a second area 17.
- the information, whether the front sensors 22, 23 or the rear sensors 24, 25 are in one first area or a second area is saved and subsequently updated every time a crossover marker is crossed. Will follow a second area 17 is traversed by the front or rear sensors, so the absolute position can be determined and the reference run is finished.
- the speed and direction of movement of the individual units can be varied as required.
- Either the front transducers are always located 22, 23 or the rear sensors 24, 25 in a first area 16 with a Incremental code and from the speed of the sequence of code lines 15 in first area 16, the speed of the carriage unit in the reading unit 8 be calculated. This speed value can be read by the reading unit 8 Carriage control 3 and on to system control 4 are transmitted.
- the functionality can be summarized as follows: After the Reference travel is known in which type of area there are front and rear sensors are located. There is always at least one of the sensor pairs (front or rear) in an incremental range, which is used to determine the speed can be used. Using the speed and pulse duration at A change of area marking can be recognized by crossing a code line become. If one of the sensor pairs has an area with an absolute code passes through, an absolute value of the position is determined, to which the Increments of motion are added.
- the positioning system according to the invention can be used for a large number of positioning tasks be used.
- positioning of loads is used in particular in determining the position in high-bay warehouses, when determining the current lifting height at lifting stations, when approaching loading and unloading stations in storage technology.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Wire Bonding (AREA)
- Eye Examination Apparatus (AREA)
- Die Bonding (AREA)
- Vehicle Body Suspensions (AREA)
- Paper (AREA)
- Body Structure For Vehicles (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Control Of Position Or Direction (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung eines Systems zum Transportieren und Positionieren von Lasten,
- Fig. 2
- einen Querschnitt durch eine Fahrschiene zusammen mit den daran angebrachten Elementen,
- Fig. 3
- eine Vorderansicht einer Codeschiene,
- Fig. 4
- einen Querschnitt durch die Codeschiene von Fig. 3 und
- Fig. 5
- eine Vorderansicht einer Leseeinrichtung.
Claims (15)
- Positioniersystem zum Positionieren zumindest einer entlang einer Positionierstrecke verfahrbaren Einheit, wobei zur Erfassung des Istwertes der Position der zu positionierenden Einheit eine Codeschiene entlang der Positionierstrecke angeordnet ist und die zu positionierende Einheit eine die Codeschiene ablesende Leseeinrichtung aufweist, dadurch gekennzeichnet, daß die Codeschiene (7) erste Bereiche (16) mit einem Inkrementalcode und zweite Bereiche (17) mit einem Absolutcode aufweist.
- Positioniersystem nach Anspruch 1, dadurch gekennzeichnet, daß die ersten Bereiche (16) und die zweiten Bereiche (17) einander abwechseln.
- Positioniersystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Codeschiene (7) einen Träger (13) aufweist, auf dem eine retroreflektierende Folie (14) angeordnet ist, vorzugsweise aufgeklebt ist, welche mit einem Strichcode versehen ist.
- Positioniersystem nach Anspruch 3, dadurch gekennzeichnet, daß der Strichcode aufgedruckt ist.
- Positioniersystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Codeschiene (7) zwischen einem ersten Bereich (16) und einem zweiten Bereich (17) jeweils eine Bereichswechselmarkierung (19) aufweist.
- Positioniersystem nach Anspruch 5, dadurch gekennzeichnet, daß die Bereichswechselmarkierung (19) ein Codestrich (15) mit einer größeren Breite, vorzugsweise einer mindestens doppelt so großen Breite, als die Codestriche (15) innerhalb der ersten und zweiten Bereiche (16, 17) ist.
- Positioniersystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der erste Bereich (16) länger ist, vorzugsweise mindestens doppelt so lang ist, als der zweite Bereich (17).
- Positioniersystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Leseeinrichtung (8) zumindest einen vorderen Aufnehmer (22, 23) und zumindest einen hinteren Aufnehmer (24, 25) aufweist, die in Richtung der Codeschiene (7) voneinander beabstandet sind.
- Positioniersystem nach Anspruch 8, dadurch gekennzeichnet, daß zwei vordere Aufnehmer (22, 23) und zwei hintere Aufnehmer (24, 25) vorgesehen sind.
- Positioniersystem nach Anspruch 9, dadurch gekennzeichnet, daß die beiden vorderen Aufnehmer (22, 23) bzw. die beiden hinteren Aufnehmer (24, 25) in Richtung der Codeschiene (7) voneinander einen derartigen Abstand (28) aufweisen, daß sie bei einer Bewegung über einen Codestrich (15) der Codeschiene (7) zueinander versetzte Impulse erzeugen, aus deren Phasenvergleich die Bewegungsrichtung bestimmbar ist, wobei der Abstand (28) vorzugsweise etwa ein Viertel des Abstandes zwischen zwei Codestrichen im ersten Bereich beträgt.
- Positioniersystem nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß der vordere Aufnehmer bzw. die vorderen Aufnehmer (22, 23) vom hinteren Aufnehmer bzw. von den hinteren Aufnehmern (24, 25) einen Abstand (29) aufweist bzw. aufweisen, der größer ist als die Länge (20) des zweiten Bereiches.
- Positioniersystem nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß jeder Aufnehmer (22, 23, 24, 25) einen Infrarotsender (26) mit einer Linsenoptik und einen Infrarotempfänger (27) aufweist.
- Positioniersystem nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die zu positionierende Einheit eine selbstfahrende Wageneinheit (1) mit einem Antriebsmotor (4) ist, der von einer Motorsteuerung (3) ansteuerbar ist, welche über zumindest eine Steuerleitung (6) mit einer Systemsteuerung (4) verbunden ist.
- Positioniersystem nach Anspruch 13, dadurch gekennzeichnet, daß die Leseeinrichtung (8) über eine Datenleitung (9) mit der Motorsteuerung (3) verbunden ist.
- Codeschiene eines Positioniersystems zumindest einer entlang einer Fahrschiene verfahrbaren selbstfahrenden Wageneinheit, wobei an der Fahrschiene eine Stromschienenhalterung angeordnet ist, welche Rastelemente aufweist, in die die Schleifleitungen zur Stromversorgung und Steuerung der selbstfahrenden Wageneinheit einschnappbar sind, insbesondere nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Codeschiene (7) Rastelemente (12) zum Einschnappen in die Rastelemente (11) der Stromschienenhalterung (10) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29802933U | 1998-02-19 | ||
DE29802933U DE29802933U1 (de) | 1998-02-19 | 1998-02-19 | Positioniersystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0937965A1 true EP0937965A1 (de) | 1999-08-25 |
EP0937965B1 EP0937965B1 (de) | 2003-05-02 |
Family
ID=8052941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99102219A Expired - Lifetime EP0937965B1 (de) | 1998-02-19 | 1999-02-01 | Positioniersystem |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0937965B1 (de) |
AT (1) | ATE239208T1 (de) |
DE (2) | DE29802933U1 (de) |
ES (1) | ES2198796T3 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1216910A1 (de) * | 2000-12-20 | 2002-06-26 | EISENMANN MASCHINENBAU KG (Komplementär: EISENMANN-Stiftung) | Förderanlage, insbesondere Elektrohängebahn |
WO2003022619A1 (fr) * | 2001-09-11 | 2003-03-20 | Societe D'etudes Et De Realisations Industrielles Lyonnaises S.E.R.I.L. | Rail d'alimentation electrique avec chariot collecteur |
EP1577188A2 (de) * | 2004-03-12 | 2005-09-21 | Murata Kikai Kabushiki Kaisha | System mit bewegendem Körper |
US7529604B2 (en) | 2003-07-23 | 2009-05-05 | Murata Kikai Kabushiki Kaisha | Moving body system and moving body |
DE102016103721A1 (de) * | 2016-03-02 | 2017-09-07 | Jungheinrich Aktiengesellschaft | Zylinder mit einem optischen Positionssensor |
CN113613983A (zh) * | 2019-03-20 | 2021-11-05 | 索尤若驱动有限及两合公司 | 具有轨道、编码系统和能沿轨道运动的移动部件的轨道系统和运行轨道系统的方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004901A1 (de) * | 2012-03-09 | 2013-09-12 | Carl Zeiss Microscopy Gmbh | Einrichtung zur Positionierung optischer Komponenten an einem Mikroskop |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180283A2 (de) * | 1984-11-02 | 1986-05-07 | Pees Steuer- und Regelanlagen GmbH | Leseeinrichtung für vorbeibewegte, mit einem Datenträger versehene Transportgüter oder -behälter |
DE3818044A1 (de) * | 1988-05-27 | 1989-11-30 | Christoph Dipl Phys Kuehne | Praezisions-messeinrichtung fuer grosse verschiebungen |
EP0425772A2 (de) * | 1989-11-01 | 1991-05-08 | ELECTROMOTIVE SYSTEMS, Inc. | Vorrichtung und Verfahren zur Bestimmung eines oder mehrerer Betriebsdaten eines schienengebundenen Fahrzeuges |
EP0490206A1 (de) * | 1990-12-10 | 1992-06-17 | Tesa S.A. | Positionskodierer für Linear- oder Winkelmessapparat |
WO1993020403A1 (en) * | 1992-04-07 | 1993-10-14 | Partek Cargotec Oy | Location scale and optical reading sensor for reading said location scale |
DE4436784A1 (de) * | 1993-10-26 | 1995-04-27 | Zeiss Carl Fa | Absolutes Positionsmeßsystem |
DE4438156A1 (de) * | 1993-12-08 | 1995-06-14 | Heidenhain Gmbh Dr Johannes | Längenmeßsystem |
DE29718597U1 (de) * | 1997-10-20 | 1997-12-18 | della Torre, Alfred, Ing., Kufstein | Steuereinrichtung |
-
1998
- 1998-02-19 DE DE29802933U patent/DE29802933U1/de not_active Expired - Lifetime
-
1999
- 1999-02-01 AT AT99102219T patent/ATE239208T1/de not_active IP Right Cessation
- 1999-02-01 DE DE59905264T patent/DE59905264D1/de not_active Expired - Fee Related
- 1999-02-01 ES ES99102219T patent/ES2198796T3/es not_active Expired - Lifetime
- 1999-02-01 EP EP99102219A patent/EP0937965B1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180283A2 (de) * | 1984-11-02 | 1986-05-07 | Pees Steuer- und Regelanlagen GmbH | Leseeinrichtung für vorbeibewegte, mit einem Datenträger versehene Transportgüter oder -behälter |
DE3818044A1 (de) * | 1988-05-27 | 1989-11-30 | Christoph Dipl Phys Kuehne | Praezisions-messeinrichtung fuer grosse verschiebungen |
EP0425772A2 (de) * | 1989-11-01 | 1991-05-08 | ELECTROMOTIVE SYSTEMS, Inc. | Vorrichtung und Verfahren zur Bestimmung eines oder mehrerer Betriebsdaten eines schienengebundenen Fahrzeuges |
EP0490206A1 (de) * | 1990-12-10 | 1992-06-17 | Tesa S.A. | Positionskodierer für Linear- oder Winkelmessapparat |
WO1993020403A1 (en) * | 1992-04-07 | 1993-10-14 | Partek Cargotec Oy | Location scale and optical reading sensor for reading said location scale |
DE4436784A1 (de) * | 1993-10-26 | 1995-04-27 | Zeiss Carl Fa | Absolutes Positionsmeßsystem |
DE4438156A1 (de) * | 1993-12-08 | 1995-06-14 | Heidenhain Gmbh Dr Johannes | Längenmeßsystem |
DE29718597U1 (de) * | 1997-10-20 | 1997-12-18 | della Torre, Alfred, Ing., Kufstein | Steuereinrichtung |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1216910A1 (de) * | 2000-12-20 | 2002-06-26 | EISENMANN MASCHINENBAU KG (Komplementär: EISENMANN-Stiftung) | Förderanlage, insbesondere Elektrohängebahn |
WO2003022619A1 (fr) * | 2001-09-11 | 2003-03-20 | Societe D'etudes Et De Realisations Industrielles Lyonnaises S.E.R.I.L. | Rail d'alimentation electrique avec chariot collecteur |
US7529604B2 (en) | 2003-07-23 | 2009-05-05 | Murata Kikai Kabushiki Kaisha | Moving body system and moving body |
EP1577188A2 (de) * | 2004-03-12 | 2005-09-21 | Murata Kikai Kabushiki Kaisha | System mit bewegendem Körper |
EP1577188A3 (de) * | 2004-03-12 | 2005-10-26 | Murata Kikai Kabushiki Kaisha | System mit bewegendem Körper |
US7426424B2 (en) | 2004-03-12 | 2008-09-16 | Murata Kikai Kabushiki Kaisha | Moving body system |
DE102016103721A1 (de) * | 2016-03-02 | 2017-09-07 | Jungheinrich Aktiengesellschaft | Zylinder mit einem optischen Positionssensor |
CN113613983A (zh) * | 2019-03-20 | 2021-11-05 | 索尤若驱动有限及两合公司 | 具有轨道、编码系统和能沿轨道运动的移动部件的轨道系统和运行轨道系统的方法 |
CN113613983B (zh) * | 2019-03-20 | 2023-08-04 | 索尤若驱动有限及两合公司 | 具有轨道、编码系统和能沿轨道运动的移动部件的轨道系统和运行轨道系统的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0937965B1 (de) | 2003-05-02 |
DE29802933U1 (de) | 1998-04-16 |
ATE239208T1 (de) | 2003-05-15 |
ES2198796T3 (es) | 2004-02-01 |
DE59905264D1 (de) | 2003-06-05 |
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