Patent ID: 8089896
Filing Date: 2012-01-03
Classification: H04L

Abstract:
1. A network system comprising a plurality of equipments and a client terminal device connected to said plurality of equipments via a network, and configured such that said plurality of equipments executes an object according to a service request input from said client terminal device, each of said plurality of equipments has at least one object, to which an object identifier is assigned; said client terminal device has an identifier specifying portion configured to specify said object identifier, and a function of sending the service request with said object identifier via the network, when said plurality of equipments comprise a specific equipment having plural objects, to which different object identifiers are assigned, and said client terminal device performs the service request by use of one of the different object identifiers specified by said identifier specifying portion, the specific equipment provides a service defined in said object having the specified object identifier, when said plurality of equipments comprise plural specific equipments having objects, to which a same object identifier is assigned, and when said client terminal device performs the service request by use of the same object identifier specified by said identifier specifying portion, the plural specific equipments provide same service, which is defined in said objects having the same object identifier, said object identifier comprises a unique identifier of said object of an equipment, and at least one interface identifier defined according to a function(s) of an equipment, when said client terminal device performs the service request by use of a same interface identifier assigned to plural objects of said plurality of equipments, said plurality of equipments provide same service corresponding to a definition content of the same interface identifier, when said client terminal device performs the service request by use of a combination of said unique identifier and said interface identifier, a specific one of said plurality of equipments provides a service corresponding to the definition content of said interface identifier, the network system further comprises a first object access server and a second object access server connected between said plurality of equipments and said client terminal device via the network, said first object access server is configured to detect said equipment connected to said first object access server, and prepare a first routing table showing a correspondence relation between combination information of said unique identifier and said interface identifier of said detected equipment and first connection address information for network communication for accessing said object, and send the combination information and second connection address information for network communication for accessing said first object access server to said second object access server, said second object access server is configured to receive the combination information and the second connection address information from said first object access server, and prepare a second routing table showing a correspondence relation between the combination information and the second connection address information, and send the combination information to said client terminal device, said second object access server is configured to, upon receiving the service request from said client terminal device via said network, refer to said second routing table, and select said first object access server associated with the combination information corresponding to said object identifier used for said service request, and send the service request to the selected first object access server, said first object access server is configured to, upon receiving the service request from said second object access server, refer to said first routing table, and select said equipment which corresponds to the combination information corresponding to said object identifier used for said service request, and send the service request to the selected equipment.