EP2956399A1 - Verfahren zum kalibrieren eines beweglichen kranteils eines krans - Google Patents
Verfahren zum kalibrieren eines beweglichen kranteils eines kransInfo
- Publication number
- EP2956399A1 EP2956399A1 EP13798980.2A EP13798980A EP2956399A1 EP 2956399 A1 EP2956399 A1 EP 2956399A1 EP 13798980 A EP13798980 A EP 13798980A EP 2956399 A1 EP2956399 A1 EP 2956399A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crane
- transmitter
- measuring device
- distance measuring
- receiver element
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- 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
- B66C13/46—Position indicators for suspended loads or for crane elements
-
- 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
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Program control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- 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
- B66C2700/085—Control actuators
Definitions
- the present invention relates to a method for calibrating a first movable crane part. Furthermore, the present invention relates to a method for operating a crane and a crane.
- a crane with a supporting structure, a crane bridge movable with respect to the supporting structure and a crane trolley movable with respect to the crane bridge.
- a crane is used, for example, in a material warehouse in order to transport material between different stations in the material store. Coordinates, for example in the x and y directions, thereby define the exact location of a respective station in a reference system, which has its origin at the supporting structure. The directions x, y are oriented perpendicular to each other.
- a control device of the crane controls the crane bridge and the crane trolley, in particular electric motors thereof, such that the trolley approaches a respective station.
- the control device receives data from a distance measuring system which monitors the position of the crane bridge and the crane trolley.
- the crane bridge and the trolley Before commissioning the crane, the crane bridge and the trolley must be calibrated so that the actual positions of the crane bridge and the trolley can be correctly calculated from the data provided by the distance measuring system.
- An object of the present invention is to provide an improved method for calibrating a first mobile crane part of a crane. Accordingly, a method for calibrating a first movable crane part of a crane is proposed.
- the first crane part is positioned above a calibration point with a first predetermined coordinate in a reference system.
- a first distance between a first transmitter / receiver element of a first distance measuring device attached to the first movable crane part and a second transmitter / receiver element of the first distance measuring device fixedly arranged in the reference system is measured.
- an orientation of the first transmitter / receiver element of the first distance measuring device in the reference system is determined as a function of the first known coordinate, the measured first distance and a first environment information.
- a transformation is formed as a function of the determined orientation of the first transmitter / receiver element of the first distance measuring device.
- the transformation is suitable for transforming a distance measured during operation of the crane by means of the first and second transceiver elements of the first distance measuring device to determine a position of the first movable crane part in the reference system.
- the orientation of the first transmitter / receiver element is determined using a first environment information, only one calibration point needs to be approached for the calibration. In that regard, therefore, no complex sequence of procedures must be observed.
- the orientation can be selected as needed, in particular space-dependent. That is, the first transmitter / receiver element can measure in both the positive and negative coordinate directions as needed. In that regard, there is also independence with respect to the reference system. Another advantage is that the orientation is automated, that is, without intervention of an operator, can be determined.
- a "transmitter / receiver element” is understood to mean an element which is designed as a transmitter and / or receiver, the only factor being that the first and second transmitter / receiver elements interact to measure a distance
- the reference system may, for example, be stationary with respect to a support structure with respect to which the first movable crane part is movable
- the support structure of the crane may, for example, be in the form of double T-beams fixedly mounted on a wall or ceiling Crane bridge can for example be mounted on the supporting structure such that it can move in a rolling translationally movable manner.
- the calibration point can be identical to the origin of the reference system, but the calibration point will regularly deviate from the origin of the reference system Calibration point in an outer margin I chose an axle along which the crane bridge or the crane trolley is movable.
- the calibration point is determined in particular according to
- a "transformation” is understood to be an equation, a data set or a transformation matrix, which during operation of the crane (that is to say, for example various stations of a material store anaide) allows the determination of the position of the first movable crane part in the reference system in response to a measured by the first receiver-measuring device distance.
- a second crane part movable relative to the first crane part is positioned above the calibration point with the first and a second predetermined coordinates.
- a second distance is measured between a first transmitter / receiver element of a second distance measuring device attached to the second movable crane part and a second transmitter / receiver element of the second distance measuring device attached to the first movable crane part.
- an orientation of the first transmitter / receiver element of the second distance measuring device in the reference system is determined as a function of the second coordinate, the second measured distance and a second environmental information.
- the transformation is further dependent on the determined orientation of the first transmitter / receiver element of the second distance measuring device for transforming a measured during operation of the crane by means of the first and second transmitter / receiver element of the second distance measuring device distance to determine a position of second movable crane part formed in the reference system.
- the first crane part can be calibrated in a first direction of the reference system and the second crane part in a second direction of the reference system.
- a position of the first transmitter / receiver element of the first and / or second distance measuring device is determined in the reference system. After this, the transformation is formed as a function of the determined position and the determined orientation.
- the determination can also include a read-out.
- the coordinates of the calibration point can be stored in a memory, in particular of the crane. In applications where the exact position of the first transmitter / receiver element relative to the first movable crane part does not exactly matter, the coordinate of the
- Calibration point can be set equal to the position of the first transmitter / receiver element of the first distance measuring device. Consequently, it may be sufficient to read only one memory containing the coordinate. The same applies to a position of the first transmitter / receiver element of the second distance measuring device. If, however, the position of the first transmitter / receiver element of the first and / or second distance measuring device is not read from a memory, but determined using the measurement results provided by the first and / or second distance measuring device, the mounting position of the first Transmitter / receiver element of the first and / or second distance measuring device on the first and second crane part in the formed transformation miteinf crawl.
- the position of the first transmitter / receiver element of the first ranging device in the reference system is dependent on the first predetermined coordinate, the first measured distance and determines the determined orientation of the first transmitter / receiver element of the first distance measuring device.
- the position of the first transmitter / receiver element of the second distance measuring device in the reference system can be determined as a function of the second predetermined coordinate, the second measured distance and the determined orientation of the first transmitter / receiver element of the second distance measuring device. Thereby, the position of the first transmitter / receiver element of the first and / or second distance measuring device can be easily determined.
- forming the transformation comprises forming a rotation matrix in dependence on the determined orientation of the first transmitter.
- Forming the transformation may include forming a transformation matrix.
- the transformation matrix may comprise a translational component, that is to say the mentioned translation matrix, and a rotational component, that is to say the mentioned rotation matrix.
- the transformation matrix can for example be stored on a memory of the crane. By means of the transformation matrix during operation of the crane, the first and / or second measured distance can be simply converted into the position of the first and / or second crane part in the reference system.
- the position of the calibration point is selected in dependence on the accuracy of the first and / or second environmental information. For example, if the environmental information is very accurate, ie only subject to a low tolerance, then the calibration point can be chosen very close to an average of the environmental information. On the other hand, if the environmental information is blurred, that is to say subject to a high tolerance, then the positi- be selected on the calibration point far apart from the mean of the environment information. Otherwise, the orientation of the first transmitter / receiver element of the first and / or second distance measuring device can not be determined unambiguously.
- the calibration point is selected outside a tolerance range around an average of the environmental information.
- not excluded values for the calibration point can be automatically calculated by a device of the crane and displayed, for example, an operator. For example, the operator may then attach a mark corresponding to the calibration point to the bottom of the material store.
- the calibration point is selected as a function of the accuracy of position information of the first transmitter / receiver element of the first and / or second distance measuring device with respect to the first and / or second crane part.
- Calibration point and the accuracy of the position information decide, among other things, whether the orientation of the first transmitter / receiver element of the first and / or second distance measuring device can be determined uniquely.
- a non-excluded range for the position of the calibration point can be calculated by a device of the crane and displayed, for example, an operator person. The operator then takes this information into account when attaching a mark corresponding to the calibration point.
- the accuracy of the position information may be considered in addition to the accuracy of the environmental information in the choice of the calibration point.
- the first and second distances are measured along mutually perpendicular axes.
- the vertical axes may correspond in a width and length direction of a material store. AI However, an axis could also extend in the vertical direction of a material store.
- first movable crane part as a crane bridge and / or the second movable
- Crane part designed as a crane.
- the crane bridge and the trolley are along each other along vertical axes
- the axes can extend in particular in the length and width direction of a material store.
- the first and / or second distance measuring device uses a radio signal for measuring the first and / or second distance.
- the first and / or second transmitter / receiver elements may, for example, be designed as transponders.
- the first and / or second distance measuring device could also make use, for example, of an optical distance measuring method, for example by means of a laser.
- the first and / or second environmental information is embodied as a dimension of a material store having the first and / or second crane part.
- the dimension can also be that of a supporting structure, which or which the first and / or second
- the first environmental information may be embodied as the length of a material store and the second environmental information as the width of the material store.
- the dimension defines maximum positions of the first and / or second crane part along an axis.
- the dimension (first environmental information) may be formed as the length of a supporting structure along which the crane bridge is movable.
- the dimension (second environment information) may be formed as the length of the crane bridge, along which the crane trolley is movable.
- the dimension of the latitude and longitude of the correspond Supporting structure which also corresponds to that of the material store, which is approachable by means of the crane.
- a method for operating a crane is provided.
- a position of a first and / or second movable crane part is determined in a reference system in dependence on the transformation described above.
- a crane with a first movable crane part of a device for positioning the first movable crane part via a calibration point with a first predetermined coordinate in a reference system a first distance measuring device with a first and second transmitter / receiver element, wherein the first transmitter -/Receiver-
- the distance measuring device is adapted to measure a first distance between the first and second transmitter / receiver element, a device for Determining an orientation of the first transmitter / receiver element of the first distance measuring device in the reference system as a function of the first predetermined coordinate, the first measured distance and a first environment information, and a device for forming a transformation depending on the determined orientation of the first transmitter Receiver / receiver element of the first distance measuring device for transforming a distance measured during operation of the crane by means of the first and second transmitter / receiver element to determine a position of the first movable crane part in the reference system.
- the device for positioning the first movable crane part can be used, for example, as a control and evaluation be device with a controlled by this electric motor.
- the device for determining the orientation as well as the device for forming the transformation can likewise be embodied in the form of the named control and evaluation device of the crane.
- Fig. 1 in a plan view of a material storage with a
- Fig. 2 is a flowchart according to an embodiment
- Fig. 3 is a view of Figure 1 in a simplified and partially supplemented representation.
- FIG. 1 shows a plan view of a material store 1 with a crane 2.
- the crane 2 is designed as a ceiling crane and includes, for example, a supporting structure 3 of the crane 2 forming double-T-beams 4, 5.
- the double-T-beams 4, 5 are parallel to each other and, for example, below a ceiling, not shown one shown building comprising the material storage 1, arranged.
- the crane 2 comprises two first movable crane parts in the form of crane bridges 6, 7.
- the crane bridges 6, 7 are mounted at their opposite ends, for example by means of rollers on the double-T-beams 4, 5 and thus in the direction indicated by x ( Longitudinal) of the double-T-carrier 4, 5 movably mounted.
- An electric motor not shown, drives a respective crane bridge 6, 7 accordingly.
- a designated 11 control and evaluation of the crane 2 in turn controls the electric motors.
- the control and evaluation device 11 is embodied, for example, in the form of a computer device, in particular in the form of a microprocessor.
- the crane 2 comprises two second movable crane parts in the form of crane racks 12, 13.
- a respective crane rake 12, 13 is mounted on a respective associated crane bridge 6, 7 movable in a direction designated y direction (longitudinal direction) of a respective crane bridge 6, 7.
- the crane bridges 6, 7 may each also be designed in the form of double-T carriers, on which a respective crane trolley 12, 13 is movably mounted, for example by means of rollers.
- a respective electric motor drives the crane pawls 12, 13 as a function of control signals of the control and evaluation device 11 in the longitudinal direction y.
- the crane 2 further comprises two first distance measuring devices 14, 15 and two second distance measuring devices 16, 17.
- the structure and operation of the distance measuring devices 14, 15, 16, 17 will be described in more detail below with reference to the distance measuring devices 14, 16 for the crane bridge 6 and the trolley 12 explained, but applies accordingly also for the distance measuring devices 15, 17, which are assigned to the crane bridge 7 and the trolley 13.
- the first distance measuring device 14 comprises a first
- the first distance measuring device 14 comprises a second transmitter Receiver element in the form of a transponder 22.
- the transponder 22 is fixedly attached to the outermost end 23 of the double-T carrier 4.
- the transponders 21, 22 are opposite each other.
- the transponders 21, 22 exchange a radio signal, by means of which the distance measuring device 14 can determine a first distance E x between the transponders 21, 22.
- the second distance measuring device 16 comprises a first transmitter / receiver element in the form of the transponder 21, which is equipped for this purpose with an additional antenna 24. Furthermore, the second distance measuring device 16 comprises a second transmitter / receiver element in the form of a transponder 25.
- the transponder 25 is firmly attached to the trolley 12 and lies opposite the transponder 21 or the antenna 24.
- the transponders 21, 25 also exchange a radio signal, on the basis of which the second distance measuring device 16 can determine a second distance E y between the two transponders 21, 25.
- the transponder 25 may be part of a base station of the first and second distance measuring devices 14, 16, which transmits the measured first and second distances E x , E y to the control and evaluation device 11.
- the material store 1 has an origin U.
- a reference system comprising the x and y directions. From the origin U, the stations to be approached by a respective crane trolley 12, 13 are defined in the material store 1. The origin U and the reference system are also stored on the control and evaluation device 11 in electronic form, for example as a table, on a memory. The origin U corresponds to the [0,0] position of a respective crane trolley 12, 13. Typically, however, the origin U can not be approached by means of the crane trolleys 12, 13.
- a method for calibrating the crane bridge 6 of the trolley 12 is explained in more detail below. These embodiments apply mutatis mutandis to the crane bridge 7 and the trolley 13.
- the calibration is required to ensure that the approached by the trolley 12 position coincides with a desired position.
- the desired position can be provided to the control and evaluation device 11, for example by means of an input device, not shown.
- the input to the input device may be made by an operator.
- a first step 200 is now a suitable
- the choice of the calibration point KP in step 200 may depend on several pieces of information. Once a first and second environmental information in the form of a length L and a width B of the ma- teriallagers 1 is taken into account. This will be explained in more detail below with reference to FIG. 3 as an example for the length L, and this also applies to the width B.
- FIG. 3 shows a simplified illustration of the material store 1 and of the crane 2 from FIG. 1, wherein the crane bridge 6 on the
- the length L of the material store is for example 100 m and is known with a certain tolerance, for example ⁇ 1 m.
- An average value MW of length L is shown as a dot-dash line in FIG.
- the mean value MW now yields a tolerance range TB of, for example, ⁇ 1 m. If the calibration point KP is within this tolerance range TB, the orientation of the transponder 21 can no longer be determined unambiguously, as will be explained in more detail below.
- orientation of the transponder 21 is meant whether it points in the positive or negative x direction of the reference system. In other words, it is then no longer possible to determine on which side of the material store 1 the transponder 22 is arranged so that it is not defined between which two points the distance E x is measured. Another information from which the choice of the choice of the
- Calibration point KP is a position information with regard to the attachment of the transponder 21 on the crane bridge 6.
- the position information may include a width of the crane bridge KB.
- the calibration point KP now results in a permissible range within which the calibration point KP can be selected.
- This permissible area can be displayed to an operator, for example on a display device, not shown, of the crane 2.
- the operator now selects an arbitrary point within the permissible range and marks it, for example, at a bottom of the material store 1. Thereafter, the operator person determines the coordinates of the calibration point KP with respect to the origin of the reference system.
- the calibration point is thus given, for example, the coordinates x KP and y K p, see FIG. 1.
- a solder is now fastened to the trolley 12, and the trolley 12 is moved by means of control by the control and evaluation device 11 as a function of an input on the part of the operator to the calibration point KP, so that the lot hangs over the dot KP.
- the solder can be attached to a crane-paw reference point KR.
- the operator informs the control and evaluation device 11 that the calibration point KP has been approached.
- the control device 11 stores the coordinates x K p, Y KP on a memory (not shown) of the same.
- the distance E x is measured.
- the control and evaluation device 11 uses the measured distance E x , the stored coordinate x K p and the environment information L to determine the orientation of the transponder 21.
- the coordinate x k p and the length L can be used to determine the control and evaluation device 11 namely determine on which side (with respect to the mean value MW, see FIG. 3) of the material store 1 with respect to the x direction the transponder 21 is located. If the measured distance E x is taken into account further, then the control and evaluation device 11 can determine in which direction the transponder 21 is "looking" or where the corresponding transponder 22 is located.
- the evaluation and control device 11 determine that the transponder 21 is oriented in the positive x direction Furthermore, the evaluation and control device 11 can determine the position of the transponder 21 in the x direction in a step 204. In a simplified embodiment of the method this position can be assumed to be Xk P , since they are only insignificantly affected by the position of the crane bridge 6 in the case of a small crane width KB (see FIG. 3)
- Calibration point KP is different. Accordingly, the coordinate X KP is read out of the memory of the evaluation and control device 11 as the position of the transponder 21. In another embodiment, in which the position of the transponder 21 is to be determined more accurately, it can be determined on the basis of the coordinate x K p and the measured distance E x as well as the orientation of the transponder 21.
- the orientation of the transponder 25 of the second distance measuring device 16 as a function of the coordinate yk P , the measured distance E y and the width B of the material store 1 is also determined in step 203.
- the Ori- The transponder 25 can be in the positive or negative y direction.
- step 204 the position of the transponder 25 in the y-direction is determined. This is done according to the position determination for the transponder 21 in the x direction.
- Calibration point KP, the crane reference point KR and the transponder 25 connecting arrows illustrates - formed.
- the transformation can be formed in particular in the form of a transformation matrix. This can have a rotational component and a translational component.
- the rotational component can in turn be described by the orientation of the transponders 21, 25 describing rotation matrices.
- the translational component can in turn be described by the position of the transponders 21, 25
- the transformation matrix formed in this way can be stored, for example, on the memory (not shown) of the control and evaluation device 11.
- the distances E x , E y measured by the first and second measuring devices 14, 16 are converted into a position XKR, Y KR by means of the transformation matrix.
- the control and evaluation device 11 can control the trolley 12 exactly to start any station in the material storage 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013202413.4A DE102013202413A1 (de) | 2013-02-14 | 2013-02-14 | Verfahren zum Kalibrieren eines beweglichen Kranteils eines Krans |
| PCT/EP2013/074441 WO2014124714A1 (de) | 2013-02-14 | 2013-11-22 | Verfahren zum kalibrieren eines beweglichen kranteils eines krans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2956399A1 true EP2956399A1 (de) | 2015-12-23 |
Family
ID=49683700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13798980.2A Withdrawn EP2956399A1 (de) | 2013-02-14 | 2013-11-22 | Verfahren zum kalibrieren eines beweglichen kranteils eines krans |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9511983B2 (de) |
| EP (1) | EP2956399A1 (de) |
| CN (1) | CN105008263A (de) |
| DE (1) | DE102013202413A1 (de) |
| WO (1) | WO2014124714A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015006992B4 (de) * | 2014-06-10 | 2021-04-15 | Liebherr-Werk Ehingen Gmbh | Verfahren und System zur Berechnung von Daten für den Betrieb eines Krans |
| WO2016009457A1 (en) * | 2014-07-16 | 2016-01-21 | Politecnico De Torino | Mobile unit for measuring running paths for handling means, system and process for measuring through such mobile unit |
| DE102016104358B4 (de) * | 2016-03-10 | 2019-11-07 | Manitowoc Crane Group France Sas | Verfahren zum Ermitteln der Tragfähigkeit eines Krans sowie Kran |
| US10096219B1 (en) * | 2016-12-08 | 2018-10-09 | Alarm.Com Incorporated | Outdoor furniture monitoring |
| US10585179B2 (en) * | 2017-06-13 | 2020-03-10 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Systems, methods, and apparatuses for determining the distance between two positions |
| EP3699136A1 (de) * | 2019-02-25 | 2020-08-26 | ABB Schweiz AG | Containerkran mit referenzmarker |
| US12221325B2 (en) * | 2019-09-18 | 2025-02-11 | Stellar Industries, Inc. | Device and method of calculating crane capacity |
| DE102020104603B4 (de) | 2020-02-21 | 2024-05-08 | Johannes Hübner Fabrik elektrischer Maschinen Gesellschaft mit beschränkter Haftung | Steuereinheit und Verfahren zum Betrieb eines Fördermittels |
| US12195306B2 (en) | 2021-04-12 | 2025-01-14 | Structural Services, Inc. | Systems and methods for identifying and locating building material objects |
| AU2022258326A1 (en) | 2021-04-12 | 2023-11-23 | Structural Services, Inc. | Systems and methods for assisting a crane operator |
| CN119976664B (zh) * | 2025-02-13 | 2025-12-12 | 法兰泰克重工股份有限公司 | 一种联动组合式起重系统及其控制方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL111701A (en) | 1993-12-01 | 1997-11-20 | Autorobot Finland | Equipment and method in vehicle alignment work |
| US6057777A (en) | 1997-07-31 | 2000-05-02 | Laser Technology | Industrial position sensor |
| JP2000143151A (ja) * | 1998-11-10 | 2000-05-23 | Hitachi Ltd | 搬送装置および搬送装置を備えた荷出し入れ処理施設 |
| US6415208B1 (en) * | 1999-11-18 | 2002-07-02 | Mannesmann Ag | Apparatus and method for surveying rails, in particular running rails for cranes, shelf handling units, running wheel block |
| DE10136398A1 (de) | 2001-07-26 | 2003-03-06 | Siemens Ag | Betriebsverfahren für einen Containerkran und hierfür bestimmte Komponenten |
| US7428781B2 (en) * | 2006-01-23 | 2008-09-30 | John C Wickhart | Method and apparatus for performing overhead crane rail alignment surveys |
| SE530490C2 (sv) | 2006-12-21 | 2008-06-24 | Abb Ab | Kalibreringsanordning, metod och system för en containerkran |
| DE102008019373A1 (de) * | 2007-07-03 | 2009-01-22 | Siemens Aktiengesellschaft | Messvorrichtung und Verfahren zum Kalibrieren einer Messvorrichtung eines Krans |
-
2013
- 2013-02-14 DE DE102013202413.4A patent/DE102013202413A1/de not_active Withdrawn
- 2013-11-22 EP EP13798980.2A patent/EP2956399A1/de not_active Withdrawn
- 2013-11-22 US US14/767,236 patent/US9511983B2/en not_active Expired - Fee Related
- 2013-11-22 CN CN201380073077.5A patent/CN105008263A/zh active Pending
- 2013-11-22 WO PCT/EP2013/074441 patent/WO2014124714A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014124714A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014124714A1 (de) | 2014-08-21 |
| US9511983B2 (en) | 2016-12-06 |
| US20150375970A1 (en) | 2015-12-31 |
| CN105008263A (zh) | 2015-10-28 |
| DE102013202413A1 (de) | 2014-08-14 |
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