EP1500006A2 - Datenverarbeitungssystem mit diensten zur bereitstellung von funktionalitäten - Google Patents
Datenverarbeitungssystem mit diensten zur bereitstellung von funktionalitätenInfo
- Publication number
- EP1500006A2 EP1500006A2 EP03747390A EP03747390A EP1500006A2 EP 1500006 A2 EP1500006 A2 EP 1500006A2 EP 03747390 A EP03747390 A EP 03747390A EP 03747390 A EP03747390 A EP 03747390A EP 1500006 A2 EP1500006 A2 EP 1500006A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- services
- service
- data processing
- processing system
- web
- 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- Withdrawn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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
Definitions
- the invention relates to a data processing system with services for providing functionalities.
- services for providing functionalities can be implemented as so-called web services.
- Web service technology is becoming increasingly widespread on the Internet and is helping to convert it from a user-centered information medium to an information and web service landscape that can be used directly by applications.
- Standard internet technologies HTTP, SOAP, WSDL, ÜDDI
- the web services of the web service technology defined today are designed statically.
- the object of the invention is to improve the provision of services in a data processing system.
- a data processing system with services for providing functionalities, in which at least one first service is provided for activating at least one second service, the services being designed as web services.
- the invention is based on the knowledge that the current static design of the provision of services on data processing systems has serious disadvantages. So far, there are no dynamic services that can be started or stopped explicitly, for example, to make them available depending on a current system status or to prevent their service. Directory services are about existing services in the data processing system today typically built centrally and statically. Information about services that are offered on a particular computer is also only available today as static, rudimentary and local information. By using a first service according to the invention to activate at least one second service, dynamic services are realized. In this way, generic applications can be created that use the services of the data processing system. These applications configure themselves dynamically from existing services. The services provided can vary at runtime of the data processing system. They can be activated dynamically, depending on their environment.
- WebServices use standard Internet protocols and mechanisms such as B. HTTP (HyperText Transfer Protocol), SOAP (Simple Object Access Protocol), WSDL (Web Service Description Language).
- the first service is also provided for loading, deactivating and / or updating at least one second service.
- the activation and deactivation of the at least one second service is advantageously carried out as a function of a current state of the data processing system.
- the state of the data processing system is also to be understood here as information present within the data processing system. So z. B.
- Alarm services can only be activated depending on certain criteria, runtime-intensive services can only be activated outside of peak hours.
- Extended diagnostic services can only be activated dynamically after payment for the service (e.g. via micropayment).
- Previously known directory services provide a central static solution for the discovery of services, e.g. B. WebServices, and their functionalities.
- the means proposed here for providing status information for the services can be designed as a decentralized directory service for functions / services.
- the respective data processing system can thus provide information about its services and their functionalities. The information can be requested at different granularity levels.
- Possible status information of the services include e.g. B. the following information:
- the proposed means for providing status information of the services deliver a defined, clear error message if a service is (temporarily) not available or has been stopped.
- Services can not only be started or stopped dynamically internally (in the data processing system), but also explicitly from the outside if, according to a further embodiment of the invention, at least one application interface is provided for the data transfer between the data processing system and external communication partners.
- This application interface can be designed as a web service (e.g. as a so-called administration web service).
- Such an update is bumpless - even during operation - if the service itself does not maintain a state, but only uses the state of the data processing system.
- this mechanism enables the replication of services on a variety of data processing systems. It thus allows system updates to be processed automatically using a program, in contrast to the manually initiated download of updates that is common today.
- the data processing system according to the invention and its configurations described above are advantageously used as part of an automation system, the services being provided for providing automation functionality.
- services provided by an automation device have so far not been able to adapt dynamically to changing circumstances. This would be necessary e.g. B. to differentiate between commissioning and productive operation. Part of the device functionality may not be called up directly in productive operation. Therefore, these functions should only be available in a commissioning phase.
- dynamic services according to the invention other services can be offered during commissioning than in normal operation.
- a white Another advantage arises from the fact that information about the device and the services it provides can be obtained on all devices via the same application interface.
- An automation device describes itself with "identical" means. Particularly in the world of automation technology, this similar, uniform access to the automation device and its similar access scheme have extreme advantages.
- FIG. 1 shows a schematic representation of a data processing system with services for providing functionalities
- FIG. 2 shows the use of web services in a distributed automation system.
- FIG. 1 shows a schematic representation of a data processing system 40 with services 41 to 43 for providing functionalities.
- a first service 41 can activate and deactivate a second and / or a third service 42 or 43 via the active connection 49.
- the data processing system 40 of the exemplary embodiment in FIG. 1 also has an application interface 44 for the data transfer between the data processing system 40 and external communication partners 45 to 47.
- the application interface is provided, for example, for loading services 42, 43. Services 41 to 43 can be addressed externally via connections 48, 39.
- FIG. 2 shows the use of web services in a distributed automation system.
- the distributed system contains distributed Different operator control and monitoring systems 51 to 53 and distributed automation systems 54 to 57. Communication between operator control and monitoring systems 51 to 53 and automation systems 54 to 57 takes place via an Internet and / or intranet 50.
- the different automation systems 54 to 57 can be spatially arbitrarily wide be spaced apart from each other.
- the components 70 to 78 of the automation systems 54 to 57 are accessed via web services 60 to 68.
- the operating and monitoring systems 51, 52 and 53 are part of a control room or a mobile personal digital assistant (PDA) of a service technician executed.
- PDA mobile personal digital assistant
- communication via the Internet and / or intranet 50 takes place not only between the operating and monitoring systems 51 to 53 and the automation systems 54 to 57 but also between the individual automation systems 54 to 57 or between the components 70 to 78 of the automation systems.
- a query service is offered which dynamically manages services, in particular web services, and can provide information about currently available and "currently running" services or web services.
- a device personal computer, web server, automation device, ...
- An administration service is used to manage the services provided by the device.
- the query service is to be viewed in the same way as the query interface from the COM world How the query interface method can be used to determine which interfaces a COM object has can be queried with the help of the query service function, which services a device provides, which in particular allows clients to react dynamically to the existing functionality or to the device / Server only provide the functionality, ie e can currently be used and may be used. Possible application scenarios of the invention are described below, in particular in automation technology.
- the information function of a device can e.g. B. used for diagnostic purposes. In a system, all existing devices are addressed via the query service and asked about the services or web services they offer. This function therefore uses a generic diagnostic application to determine which devices offer a corresponding diagnostic function. The application automatically includes the devices found when diagnosing the system. The application can use the diagnostic functions to read out and process the current device status or diagnostic buffer.
- a controller in a manufacturing cell that controls the cell functionality.
- Maintenance work is to be carried out on the cell.
- the cell must be "logically removed from the network", ie put into the maintenance state. This is done by temporarily stopping the services for the acceptance of production order data and starting additional maintenance services. Now the manual maintenance work can be carried out. the corresponding services are started again and the cell registers as "ready for production orders".
- a new device is to be put into operation. It is now connected to an intranet. The device is configured and parameterized via the commissioning services offered by the device. Then these services are explicitly deactivated so that no changes can be made in productive operation. Only the services for productive operation are available. If the transition to the commissioning phase is necessary again, this can be done by a special "Administration Service”. This is typically password-protected. The positive side effect is that this "Administration Service" also makes demands on the subsequent traceability of changes can be met (e.g. by the American Food and Drug Administration).
- this update can be done from a central location using a program.
- a program checks the software versions currently available in the system (e.g. by turning directly to the device or by searching a database of the system) and determining which devices require an update / bug fix. The update is then imported into the device via the corresponding web services of the devices.
- runtime-intensive services can only take place outside of peak times.
- dynamic web services allow certain very time-consuming services, e.g. B. create more detailed protocols of a manufacturing / production process and evaluations about it, only be activated outside of peak times, but not in normal operation.
- This technology allows both direct communication between applications (the so-called services) as well as the construction of applications from distributed components (again services), ie loosely connected web services can work together to fulfill a task.
- standards such as XML and SOAP
- the WebService technology scales from local communication to communication via the intranet / Internet. It is the basis for distributed and integrated Internet applications, using existing standards (e.g. W3C, IETF standards such as HTTP, XML, XML Schema, XML Data Types, etc.) or new ones, together with W3C, IETF defines standards such as SOAP, WSDL, UDDI.
- WebServices are easy to access, blurring the lines between local APIs and WebServices ("Web APIs"). Access is just as easy as when creating and using a local object.
- WebService technology is the basis for loosely coupled applications. It is characterized by message-based communication and scalability through statelessness. The loose coupling (e.g. with SOAP) offers the advantages of good compatibility with changes in the implementation of the client and server and robust communication (port-based, message-based, asynchronous).
- a client packs messages into self-describing packets (messages) and sends them over the respective communication connection.
- the sender and receiver only have an agreement with regard to the message format used on the line. The only assumption is that the recipient understands the message. No assumptions are made about what happens after the message is received or between the sender and recipient.
- Common web services have the following properties: They are accessible via a communication network such as the Internet / intranet and have an XML interface. Information about WebServices is stored in a registry so that the WebServices can be localized via it. They communicate using XML messages via web protocols and support loosely coupled connections between systems.
- the invention thus relates to a data processing system 40 with improved provision of services. ten 40, 41, 42 to provide functionalities.
- the data processing system 40 has at least one first service 41 for activating at least one second service 42, the services 40, 41, 42 being designed as web services.
- An advantageous embodiment of the invention allows dynamic web services to be made dynamic by means of dynamic services, which allow web services to be handled explicitly in a closed system.
- the system is self-describing with regard to the services it provides and their current status.
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
- Multi Processors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10219094 | 2002-04-29 | ||
| DE10219094 | 2002-04-29 | ||
| DE10229879 | 2002-07-03 | ||
| DE10229879A DE10229879A1 (de) | 2002-04-29 | 2002-07-03 | Datenverarbeitungssystem mit Diensten zur Bereitstellung von Funktionalitäten |
| PCT/DE2003/001289 WO2003094045A2 (de) | 2002-04-29 | 2003-04-16 | Datenverarbeitungssystem mit diensten zur bereitstellung von funktionalitäten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1500006A2 true EP1500006A2 (de) | 2005-01-26 |
Family
ID=29403564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03747390A Withdrawn EP1500006A2 (de) | 2002-04-29 | 2003-04-16 | Datenverarbeitungssystem mit diensten zur bereitstellung von funktionalitäten |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1500006A2 (de) |
| WO (1) | WO2003094045A2 (de) |
-
2003
- 2003-04-16 WO PCT/DE2003/001289 patent/WO2003094045A2/de not_active Ceased
- 2003-04-16 EP EP03747390A patent/EP1500006A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03094045A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003094045A2 (de) | 2003-11-13 |
| WO2003094045A3 (de) | 2004-02-12 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20040927 |
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| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
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| 17Q | First examination report despatched |
Effective date: 20090817 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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| 18W | Application withdrawn |
Effective date: 20160907 |