Provision of services in a network comprising coupled computers

• US 20050198333A1
• Filed: 01/21/2005
• Published: 09/08/2005
• Est. Priority Date: 01/27/2004
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Schlereth, Michael, Dinges, Clemens, Gast, Christiane, Drinjakovic, Dino, Epple, Ulrich
• Granted Patent: US 7,668,910 B2
• Time in Patent Office: Days
• US Class Current: 709/229
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/0894 Policy-based network configuration management
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1068 Discovery involving direct consultation or announcement among potential requesting and potential source peers
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The invention relates to a system and a method for simplified provision of services (1, 2) within a network (3) comprising coupled computers (4, 5), wherein the computers (4, 5) have storage means (20) for storing objects (7, 8), with the objects (7, 8) having first means (21) for loading, storing and processing descriptions (11) of groups (9, 10), with the objects (7, 8) having second means (22) for loading, storing and executing services (1, 2) assigned by the respective groups (9, 10), with a group (9, 10) having associated with it in each case the objects (7, 8) that have stored the description (11) of the respective group (9, 10), with the description (11) of a group (9, 10) determining the semantics of the services (1, 2) assigned to the respective group (9, 10), with the objects (7, 8) having search means (33) for conducting parallel searches within different groups (9, 10) for objects (7, 8) having the services (1, 2) assigned to the respective group (9, 10) and executable by the respective objects (7, 8), and with the objects (7, 8) having third means (23) for initiating the execution of the services (1, 2) which can be executed by another object (7, 8) of the group (9, 10) and are assigned to the respective group (9, 10).

Claims

1-34. -34. (canceled)

35. A system for providing services within a network comprising coupled computers, wherein

the computers have storage mechanisms for storing objects, wherein

the objects have first mechanisms for loading, storing and processing descriptions of groups, wherein

the objects have second mechanisms for loading, storing and executing services assigned by the respective groups, wherein

a group has associated with it in each case the objects that have stored the description of the respective group, wherein

the description of a group determines a semantics of the services assigned to the respective group, wherein

the objects have search mechanisms for conducting parallel searches within different groups for objects having services assigned to the respective group and executable by the respective objects, and wherein

the objects have third mechanisms, for initiating the execution of the services which are executable by another object of the group and assigned to the respective group.

36. The system as claimed in claim 35, wherein the objects have fourth mechanisms for locating, reading and/or defining the descriptions of groups.

37. The system as claimed in claim 35, wherein the objects have fifth mechanisms for locating and/or defining the services assigned to the groups.

38. The system as claimed in claim 35, wherein the objects have sixth mechanisms for determining affiliations of the respective objects to the groups.

39. The system as claimed in claim 35, wherein the objects have seventh mechanisms for loading and executing a distance function, the distance function being provided for the purpose of determining a semantic distance between two objects.

40. The system as claimed in claim 39, wherein the objects have eighth mechanisms for generating a list of the objects with the least semantic distance to the respective object.

41. The system as claimed in claim 39, wherein the objects have ninth mechanisms for controlling the search mechanisms for the purpose of searching for objects as a function of the respective semantic distance.

42. The system as claimed in claim 35, wherein the objects have tenth mechanisms for processing descriptions of the services.

43. The system as claimed in claim 35, wherein the objects have eleventh mechanisms for forwarding search requests for services that are not executable by the respective object to further objects within the respective group.

44. The system as claimed in claim 35, wherein results of different searches can be combined.

45. The system as claimed in claim 35, further comprising twelfth mechanisms for recognizing new objects within a group.

46. The system as claimed in claim 35, wherein the objects of a group have a hierarchical relationship with one another.

47. The system as claimed in claim 35, wherein the services are used for providing information.

48. The system as claimed in claim 35, wherein an object within a group only partially knows further objects of this group, wherein all further objects of this group being communicatively accessible at least indirectly by the object.

49. The system as claimed in claim 35, wherein the objects have communication mechanisms for the transmission of messages, wherein the communication mechanisms having analytical mechanisms for analyzing the semantic content of the messages.

50. The system as claimed in claim 35, wherein each of the groups is related to another group.

51. The system as claimed in claim 35, wherein the network is an industrial automation system.

52. A method for providing services within a network having coupled computers, the method comprising:

storing objects by the computers;

loading, storing and processing descriptions of groups by the objects;

loading, storing and executing services assigned to the groups by the objects, wherein each group comprises such objects that have stored the description of the respective group, and wherein the description determines the semantics of the services assigned to the group;

searching in parallel by the objects within different groups for objects having the services adapted to execute by the services; and

initiating by the objects the execution of the services, the services executed by another object of the group.

53. The method as claimed in claim 52, further comprising locating, retrieving and/or defining the descriptions of groups by the objects.

54. The method as claimed in claim 52, further comprising locating and/or defining the services assigned to the groups by the objects.