EP1911238A1 - Distributor system as part of an ethernet network - Google Patents
Distributor system as part of an ethernet networkInfo
- Publication number
- EP1911238A1 EP1911238A1 EP06778038A EP06778038A EP1911238A1 EP 1911238 A1 EP1911238 A1 EP 1911238A1 EP 06778038 A EP06778038 A EP 06778038A EP 06778038 A EP06778038 A EP 06778038A EP 1911238 A1 EP1911238 A1 EP 1911238A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ethernet
- dialects
- ethernet interface
- distributor
- modules
- 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- Withdrawn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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/403—Bus networks with centralised control, e.g. polling
Definitions
- the invention relates to a distribution system according to the preamble of claim 1.
- distributor modules In the field of automation technology, distributor modules have found widespread use in the SAI standard (sensor-actuator interface). These distributor modules are available in a wide variety of designs.
- each of the splitter modules is a cable for connection, e.g. connected to a higher-level unit such as a control computer. They furthermore have a plurality of connections for sensors, actuators, initiators and the like, which are typically designed in the so-called "M" standard as "M5, M8, M12 etc. connections”.
- distributor modules Often a part of the distributor modules is designed as a so-called bus slaves, which are provided with a hardware and firmware, which makes it possible to communicate with the parent bus system - referred to below as fieldbus.
- the invention has the task of reducing this effort.
- the invention achieves this object by the subject matter of claim 1 and by the subject matter of claim 4.
- the Ethernet interface module is designed to recognize different Ethernet dialects or it has a switching device for switching between the different dialects. Since the module can now be adjusted automatically or by hand to the desired Ethernet dialect (eg with the aid of jumpers), the outlay for producing and maintaining various bus slave modules for various Ethernet dialects, in particular "Profmet I / O RT", “module bus TCP “or” Ethernet / IP “(see eg" www.hms-networks.de/Technologies/Profinet_IO.shtml ";” www.hms- networks.de/Technologies/modbustcp.shtml “and” www.hms- networks. de / Technologies / EthernetIP.shtml "because only one single, automatically or manually switchable I / O distributor module is required.
- Ethernet interface module is designed to detect differences in the software of the Ethernet dialects, which are reflected in the seventh layer of the ISO seven-layer model.
- the distributor has a plurality of Ethernet interface modules as well as a switching device for switching between the various modules. This solution also reduces the number of distributors to be provided for different dialects.
- FIG. 1 shows an exemplary representation of a bus system according to the invention
- Fig. 2 is a schematic representation of the hardware structure of an inventive
- FIG. 3 shows a representation of the seven-layer model of an Ethernet system.
- Fig.l shows a schematic representation of a distribution system 1, which is part of a parent - not shown here - other bus system.
- This distribution system 1 consists of first distribution modules 2, one of which is shown here by way of example schematically, each with cables 3, for example with a übergege- ordered component of the system as a computer unit (not shown here) are connected.
- cables 3 for example with a übergege- ordered component of the system as a computer unit (not shown here) are connected.
- SAI sensor lines are used in a conventional manner in a known manner.
- the distributor modules 2 have connections 6, which are formed, for example, as M 12 connections.
- These first distributors 2 are preferably followed by further cables 5 further Ethernet S AI distributor 4 or the like, which in turn initiators and sensors are connected downstream (not shown).
- the hardware structure of the distributor module 2 is shown in FIG.
- the exemplary eight terminals 6 - here referred to as E / l to E / A8 - are connected to an I / O interface module, which is connected to a microcontroller and connected to a power supply device.
- the microcontroller is in turn connected to an Ethernet interface module which is connected to a fieldbus connection.
- Such a structure is known per se.
- the Ethernet interface module is now designed according to the invention - in particular programmed - that it can detect differences in the Ethernet dialect.
- it is programmed to recognize differences reflected in the seventh layer of the ISO seven-layer model (at the user process level) and then automatically switch to processing that dialect.
- the Ethernet interface module is programmed in such a way or has a program with a recognition routine that detects differences in the software of the Ethernet dialects and, after recognizing these differences, starts another program routine that corresponds to this Ethernet standard.
- the differences in the Ethernet dialects are documented in the literature on the individual dialects and are known per se.
- the recognition routine now knows at least two dialects (or more) and recognizes the dialects on the basis of marked differences - for example by comparing the signals entering the Ethernet interface module with prestored data. After recognizing a dialect, the detection routine then starts the actual processing of this dialect in a conventional manner.
- the Ethernet interface module it can be switched between the dialects with jumpers or the like, in particular if there are not only software differences between the dialects. The latter is of particular interest if the dialects differ from each other so much that not only software differences exist in the seventh level of the ISO seven-layer model, but also hardware differences (on a deeper layer of the seven-layer model) exist between the dialects.
Abstract
The invention relates to a distributor system (1) as part of a superordinate SAI bus system, which comprises distributor modules (2), configured as bus slaves, that can be connected to superordinate components of the system such as a computer unit and that comprise connections (6) for connecting preferably additional subdistributors or the like, and an electronic system which includes a microcontroller, an Ethernet interface component and at least one E/A interface component. The inventive system is characterized in that the at least one Ethernet interface component is adapted to identify various Ethernet dialects or in that the Ethernet interface component comprises a switching device for switching between the various dialects.
Description
Verteilersystem als Teil eines Ethernet-Netzwerkes Distribution system as part of an Ethernet network
Die Erfindung betrifft ein Verteilersystem nach dem Oberbegriff des Anspruchs 1.The invention relates to a distribution system according to the preamble of claim 1.
Im Bereich der Automatisierungstechnik haben Verteilermodule im SAI-Standard (Sensor-Aktor-Interface) eine weitgehende Verbreitung gefunden. Diese Verteilermodule werden in verschiedenster Auslegung angeboten.In the field of automation technology, distributor modules have found widespread use in the SAI standard (sensor-actuator interface). These distributor modules are available in a wide variety of designs.
An die Verteilermodule wird jeweils ein Kabel zur Verbindung z.B. mit einer übergeordneten Einheit wie einem Steuerungsrechner angeschlossen. Sie weisen ferner eine Mehrzahl von Anschlüssen für Sensoren, Aktoren, Initiatoren und dgl. auf, die typischerweise im sogenannten „M" Standard als „M5, M8, M12 usw. -Anschlüsse" ausgebildet sind.To each of the splitter modules is a cable for connection, e.g. connected to a higher-level unit such as a control computer. They furthermore have a plurality of connections for sensors, actuators, initiators and the like, which are typically designed in the so-called "M" standard as "M5, M8, M12 etc. connections".
Oftmals wird ein Teil der Verteilermodule als so genannte Busslaves ausgebildet, die mit einer Hard- und Firmware versehen sind, die es ermöglicht, mit dem übergeordneten Bussystem - nachfolgend Feldbus genannt - zu kommunizieren.Often a part of the distributor modules is designed as a so-called bus slaves, which are provided with a hardware and firmware, which makes it possible to communicate with the parent bus system - referred to below as fieldbus.
Auf der Feldbusebene haben sich im Ethernetstandard verschiedenste Dialekte verbreitet. Es ist notwendig, für jeden dieser Dialekte eigene I/O-Module bzw. Verteilermodule bereit zu halten, deren Elektronik jeweils auf den Dialekt (insbesondere auf die 7. Schicht im Mehrschichtenmodell) angepasst ist.At the field bus level, various dialects have become common in the Ethernet standard. It is necessary to have available for each of these dialects own I / O modules or distributor modules whose electronics are each adapted to the dialect (in particular to the seventh layer in the multilayer model).
Die Erfindung hat die Aufgabe, diesen Aufwand zu reduzieren.The invention has the task of reducing this effort.
Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruchs 1 und durch den Gegenstand des Anspruchs 4.The invention achieves this object by the subject matter of claim 1 and by the subject matter of claim 4.
Nach dem Kennzeichen des Anspruchs 1 ist der Ethernetschnittstellenbaustein dazu ausgelegt, verschiedene Ethernetdialekte zu erkennen oder er weist eine Umschalteinrichtung zum Umschalten zwischen den verschiedenen Dialekten aufweist.
Da das Modul nunmehr automatisch oder von Hand auf den gewünschten Ethernetdia- lekt einstellbar ist (z.B. mit Hilfe von Jumpern), kann der Aufwand zur Herstellung und Bereithaltung verschiedener Busslave-Module für verschiedene Ethernetdialekte wie insbesondere „Profmet I/O RT", „Modulbus TCP" oder „Ethernet / IP" (siehe z.B. „www.hms-networks.de/Technologies/Profinet_IO. shtml"; „www.hms- networks.de/Technologies/modbustcp.shtml" und „www.hms- networks.de/Technologies/EthernetIP.shtml" deutlich gesenkt werden, da nur noch ein einziges, automatisch oder manuell umschaltbares I/O-Verteilermodul notwendig ist.According to the characterizing part of claim 1, the Ethernet interface module is designed to recognize different Ethernet dialects or it has a switching device for switching between the different dialects. Since the module can now be adjusted automatically or by hand to the desired Ethernet dialect (eg with the aid of jumpers), the outlay for producing and maintaining various bus slave modules for various Ethernet dialects, in particular "Profmet I / O RT", "module bus TCP "or" Ethernet / IP "(see eg" www.hms-networks.de/Technologies/Profinet_IO.shtml ";" www.hms- networks.de/Technologies/modbustcp.shtml "and" www.hms- networks. de / Technologies / EthernetIP.shtml "because only one single, automatically or manually switchable I / O distributor module is required.
Nach einer vorteilhaften Weiterbildung ist der Ethernetschnittstellenbaustein dazu ausgelegt, Unterschiede in der Software der Ethernetdialekte zu erkennen, die sich in der siebten Schicht des ISO-Siebenschichtmodells widerspiegeln.According to an advantageous development of the Ethernet interface module is designed to detect differences in the software of the Ethernet dialects, which are reflected in the seventh layer of the ISO seven-layer model.
Es ist alternativ nach einer anderen Lösung auch denkbar, dass der Verteiler mehrere Ethernetschnittstellenbausteine aufweist sowie eine Umschalteinrichtung zum Umschalten zwischen den verschiedenen Bausteinen. Auch diese Lösung senkt die Anzahl für verschiedene Dialekte bereitzuhaltender Verteiler.Alternatively, according to another solution, it is also conceivable that the distributor has a plurality of Ethernet interface modules as well as a switching device for switching between the various modules. This solution also reduces the number of distributors to be provided for different dialects.
Zum technologischen Hintergrund werden die US 2003/0084112 Al und die DE 101 13 261 Al genannt.The technological background US 2003/0084112 Al and DE 101 13 261 Al called.
Vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.Advantageous embodiments can be found in the dependent claims.
Nachfolgend wird die Erfindung unter Bezug auf die Zeichnung anhand eines Ausfuh- rungsbeispiels näher beschrieben. Es zeigt:The invention will be described in more detail below with reference to the drawing with reference to an exemplary embodiment. It shows:
Fig. 1 eine beispielhafte Darstellung eines erfindungsgemäßen Bussystems;1 shows an exemplary representation of a bus system according to the invention;
Fig. 2 eine schematische Darstellung des Hardwareaufbaus eines erfindungsgemäßenFig. 2 is a schematic representation of the hardware structure of an inventive
Verteilers bzw. I/O-Moduls; undDistributor or I / O module; and
Fig. 3 eine Darstellung des Siebenschichtmodells eines Ethernetsystems.3 shows a representation of the seven-layer model of an Ethernet system.
Fig.l zeigt eine schematische Darstellung eines Verteilersystems 1, das einen Teil eines übergeordneten - ansonsten hier nicht dargestellten - Bussystems darstellt. Dieses Verteilersystem 1 besteht aus ersten Verteilermodulen 2, von denen hier eines beispielhaft schematisch dargestellt ist, die jeweils mit Kabeln 3 z.B. mit einer überge-
ordneten Komponente des Systems wie einer Rechnereinheit (hier nicht dargestellt) verbunden sind. Als Kabel 3 werden in an sich bekannter Weise so genannte SAI- Sensorleitungen in geschirmter Ausfuhrung genutzt. Die Verteilermodule 2 weisen Anschlüsse 6 auf, die z.B. als M 12- Anschlüsse ausgebildet sind. Diesen ersten Vertei- lern 2 sind über weitere Kabel 5 vorzugsweise weitere Ethernet- S AI- Verteiler 4 oder dgl. nachgeschaltet, denen wiederum Initiatoren und Sensoren nachgeschaltet sind (nicht dargestellt) .Fig.l shows a schematic representation of a distribution system 1, which is part of a parent - not shown here - other bus system. This distribution system 1 consists of first distribution modules 2, one of which is shown here by way of example schematically, each with cables 3, for example with a übergege- ordered component of the system as a computer unit (not shown here) are connected. As a cable 3 so-called SAI sensor lines are used in a conventional manner in a known manner. The distributor modules 2 have connections 6, which are formed, for example, as M 12 connections. These first distributors 2 are preferably followed by further cables 5 further Ethernet S AI distributor 4 or the like, which in turn initiators and sensors are connected downstream (not shown).
Der Hardwareaufbau des Verteilermoduls 2 ist in Fig. 2 dargestellt. Die beispielhaft acht Anschlüsse 6 - hier als E/l bis E/A8 bezeichnet -, sind an einen E/A- Interfacebaustein angeschlossen, der mit einem MikroController verbunden und an eine Stromversorgungseinrichtung angeschlossen ist. Der MikroController ist wiederum mit einem Ethernet-Schnittstellenbaustein verbunden, der mit einem Feldbusanschluss verbunden ist. Ein derartiger Aufbau ist an sich bekannt.The hardware structure of the distributor module 2 is shown in FIG. The exemplary eight terminals 6 - here referred to as E / l to E / A8 - are connected to an I / O interface module, which is connected to a microcontroller and connected to a power supply device. The microcontroller is in turn connected to an Ethernet interface module which is connected to a fieldbus connection. Such a structure is known per se.
Der Ethernet-Schnittstellenbaustein wird nun erfindungsgemäß so ausgelegt - insbesondere programmiert - dass er Unterschiede im Ethernet-Dialekt erkennen kann. Insbesondere wird er derart programmiert, dass er Unterschiede, die sich in der siebten Schicht des ISO-Siebenschichtenmodells (auf der Ebene der Anwenderprozesse) wi- derspiegeln, erkennt und dann automatisch zur Verarbeitung dieses Dialektes umschaltet. Hierzu wird der Ethernetschnittstellenbaustein derart programmiert bzw. weist ein Programm mit einer Erkennungsroutine auf, die Unterschiede in der Software der E- thernetdialekte erkennt und die und nach einem Erkennen dieser Unterschiede eine weitere Programmroutine startet, welche diesem Ethernetstandard entspricht.The Ethernet interface module is now designed according to the invention - in particular programmed - that it can detect differences in the Ethernet dialect. In particular, it is programmed to recognize differences reflected in the seventh layer of the ISO seven-layer model (at the user process level) and then automatically switch to processing that dialect. For this purpose, the Ethernet interface module is programmed in such a way or has a program with a recognition routine that detects differences in the software of the Ethernet dialects and, after recognizing these differences, starts another program routine that corresponds to this Ethernet standard.
Die Unterschiede in den Ethernetdialekten sind in der Literatur zu den einzelnen Dialekten dokumentiert und an sich bekannt. Die Erkennungsroutine kennt nun wenigstens zwei Dialekte (oder mehr) und erkennt die Dialekte anhand markanter Unterschiede - beispielsweise durch Vergleich der in den Ethernetschnittstellenbaustein eingehenden Signale mit vorgespeicherten Daten. Nach dem Erkennen eines Dialektes startet die Erkennungsroutine dann die eigentliche Verarbeitung dieses Dialektes in an sich bekannter Weise. Gegenüber Lösungen des Standes der Technik ergibt sich der Vorteil, dass ein- und derselbe Verteiler zur Verarbeitung verschiedener Dialekte geeignet ist.
Es ist auch denkbar, den Ethernet-Schnittstellenbaustein so auszulegen, dass er zwischen den Dialekten mit Jumpern oder dgl. umschaltbar ist, insbesondere dann, wenn nicht nur Softwareunterschiede zwischen den Dialekten bestehen. Letzteres ist insbesondere dann von Interesse, wenn die Dialekte soweit voneinander unterscheiden, dass nicht nur Softwareunterschiede in der siebten Ebene des ISO-Siebenschichtenmodells bestehen sondern auch Hardwareunterschiede (auf einer tieferen Schicht des Siebenschichtenmodells) zwischen den Dialekten bestehen.The differences in the Ethernet dialects are documented in the literature on the individual dialects and are known per se. The recognition routine now knows at least two dialects (or more) and recognizes the dialects on the basis of marked differences - for example by comparing the signals entering the Ethernet interface module with prestored data. After recognizing a dialect, the detection routine then starts the actual processing of this dialect in a conventional manner. Compared to solutions of the prior art, there is the advantage that one and the same distributor is suitable for processing various dialects. It is also conceivable to design the Ethernet interface module such that it can be switched between the dialects with jumpers or the like, in particular if there are not only software differences between the dialects. The latter is of particular interest if the dialects differ from each other so much that not only software differences exist in the seventh level of the ISO seven-layer model, but also hardware differences (on a deeper layer of the seven-layer model) exist between the dialects.
Es ist auch möglich, mehrere der Schnittstellenbausteine in das Verteilermodul 2 zu integrieren, zwischen denen dann manuell oder automatisch umgeschaltet wird.
It is also possible to integrate several of the interface modules in the distributor module 2, between which then is switched manually or automatically.
Bezugszeichenreference numeral
Verteilersystem 1Distribution system 1
Verteilermodule 2Distribution modules 2
Kabel 3Cable 3
Subverteilermodul 4Sub-distribution module 4
Kabel 5Cable 5
Anschlüsse 6
Connections 6
Claims
1. Verteilersystem (1) als Teil eines übergeordneten S AI-Bussystems, mit als Busslave ausgebildeten Verteilermodulen (2), die mit übergeordneten Kom- ponenten des Systems wie einer Rechnereinheit verbindbar sind und Anschlüsse (6) zum Anschluss vorzugsweise von weiteren Subverteilern oder dgl. aufweisen und eine Elektronik, die einen MikroController, einen Ether- netschnittstellenbaustein und wenigstens einen E/A-Interfacebaustein enthält, dadurch gekennzeichnet, dass der wenigstens eine Ethernetschnittstel- lenbaustein dazu ausgelegt ist, verschiedene Ethernetdialekte zu erkennen oder dass der Ethernetschnittstellenbausteine eine Umschalteinrichtung zum Umschalten zwischen den verschiedenen Dialekten aufweist.1. distribution system (1) as part of a superordinate S AI bus system, formed as a bus slave distributor modules (2), which are connectable to higher-level components of the system such as a computer unit and terminals (6) for connection preferably from further subdistributors or the like and an electronic system which contains a microcontroller, an Ethernet interface module and at least one I / O interface module, characterized in that the at least one Ethernet interface module is designed to recognize different Ethernet dialects or that the Ethernet interface modules have a switching device for switching over between the different dialects.
2. Verteilersystem nach Anspruch 1, dadurch gekennzeichnet, dass der Ether- netschnittstellenbaustein derart programmiert ist, dass er Unterschiede in der2. Distribution system according to claim 1, characterized in that the Ethernet interface module is programmed such that it differs in the
Software der Ethernetdialekte erkennt und nach einem Erkennen dieser Unterschiede eine Verarbeitungsroutine startet, welche diesem Ethernetstan- dard entspricht.Software detects the Ethernet dialects and after detecting these differences, a processing routine starts, which corresponds to this Ethernet standard.
3. Verteilersystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der3. Distribution system according to claim 1 or 2, characterized in that the
Ethernetschnittstellenbaustein dazu ausgelegt ist, Unterschiede in der Software der Ethernetdialekte zu erkennen, die sich in der siebten Schicht des ISO-Siebenschichtmodells widerspiegeln.Ethernet interface device is designed to detect differences in the software of the Ethernet dialects, which are reflected in the seventh layer of the ISO seven-layer model.
4. Verteilersystem nach dem Oberbegriff des Anspruchs 1, dadurch gekennzeichnet, dass der Verteiler mehrere Ethernetschnittstellenbausteine aufweist sowie eine Umschalteinrichtung zum Umschalten zwischen den verschiedenen Bausteinen. 4. Distribution system according to the preamble of claim 1, characterized in that the distributor has a plurality of Ethernet interface modules and a switching device for switching between the different components.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200520012013 DE202005012013U1 (en) | 2005-07-30 | 2005-07-30 | Distribution system as part of an Ethernet network |
| PCT/EP2006/064760 WO2007014905A1 (en) | 2005-07-30 | 2006-07-27 | Distributor system as part of an ethernet network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1911238A1 true EP1911238A1 (en) | 2008-04-16 |
Family
ID=37038499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06778038A Withdrawn EP1911238A1 (en) | 2005-07-30 | 2006-07-27 | Distributor system as part of an ethernet network |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1911238A1 (en) |
| DE (1) | DE202005012013U1 (en) |
| WO (1) | WO2007014905A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010030811A1 (en) * | 2010-07-01 | 2012-01-05 | Endress + Hauser Flowtec Ag | Automated adaptation to various Industrial Ethernet protocols |
| DE102011117083A1 (en) | 2011-10-27 | 2013-05-02 | Volkswagen Aktiengesellschaft | Slave controller and method for programming a slave controller |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020042857A1 (en) * | 2000-10-05 | 2002-04-11 | Jones Nicolas D.L. | Industrial multi-port data connector system |
| DE10104143A1 (en) * | 2001-01-31 | 2002-08-08 | Grieshaber Vega Kg | Multi-protocol capable data transmission devices and data communication systems |
| DE10113261C2 (en) * | 2001-03-16 | 2003-07-10 | Siemens Ag | Synchronous, clocked communication system with decentralized input / output modules and method for integrating decentralized input / output modules in such a system |
| US7447762B2 (en) * | 2001-04-02 | 2008-11-04 | Curray Timothy G | Ethernet communications for power monitoring system |
| US7058712B1 (en) * | 2002-06-04 | 2006-06-06 | Rockwell Automation Technologies, Inc. | System and methodology providing flexible and distributed processing in an industrial controller environment |
| DE10248843B4 (en) * | 2002-10-19 | 2005-01-20 | Daimlerchrysler Ag | Device for controlling a motor or gearbox |
| US20050228509A1 (en) * | 2004-04-07 | 2005-10-13 | Robert James | System, device, and method for adaptively providing a fieldbus link |
-
2005
- 2005-07-30 DE DE200520012013 patent/DE202005012013U1/en not_active Expired - Lifetime
-
2006
- 2006-07-27 WO PCT/EP2006/064760 patent/WO2007014905A1/en active Application Filing
- 2006-07-27 EP EP06778038A patent/EP1911238A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007014905A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007014905A1 (en) | 2007-02-08 |
| DE202005012013U1 (en) | 2006-12-14 |
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