摘要:
A context information collection and distribution system registers read identification information in a computer device that manages and controls an RFID tag reading device and is located in a lowest hierarchy in wide area network topology. The computer device located in the lowest hierarchy in the wide area network topology notifies a computer device located in a higher management domain hierarchy that the computer device located in the lowest hierarchy manages read identification information of a target. Further, the computer device located in the management domain hierarchy notifies a computer device located in much higher ID system hierarchy that the computer device located in the hierarchy just under the management domain hierarchy manages the read identification information of the target.
摘要:
A context information collection and distribution system registers read identification information in a computer device that manages and controls an RFID tag reading device and is located in a lowest hierarchy in wide area network topology. The computer device located in the lowest hierarchy in the wide area network topology notifies a computer device located in a higher management domain hierarchy that the computer device located in the lowest hierarchy manages read identification information of a target. Further, the computer device located in the management domain hierarchy notifies a computer device located in much higher ID system hierarchy that the computer device located in the hierarchy just under the management domain hierarchy manages the read identification information of the target.
摘要:
An application server receives presence information with anonymous identification information of a presentity client. The application server transmits a message to an information distribution proxy. The message is addressed not to the identification information of the presentity client, but to the anonymous identification information of the presentity client. The information distribution proxy converts the anonymous identification information into real identification information, and forwards the message to the presentity client. Therefore, the application server does not know the real identification information of the presentity client. That is, there is no need for the application server to directly treat personal information, thereby producing the effect of eliminating the need for strict management of presence information.
摘要:
A presence communication system capable of efficiently reducing the number of messages exchanged between presentities and watchers, thereby preventing lowering in communication quality. A presence server sets a group identifier as an identifier which is used to collectively look up a group of multiple pieces of presence information provided by presence information providers who have agreed to a use policy, aggregates and stores the presence information under the group identifier, and delivers the presence information requested to the group identifier. Each presentity provides the presence server with its presence information targeted to the group identifier. Each watcher requests the group identifier for the presence information provided by the presentities, and receives the presence information delivered from the presence server.
摘要:
A presence communication system capable of efficiently reducing the number of messages exchanged between presentities and watchers, thereby preventing lowering in communication quality. A presence server sets a group identifier as an identifier which is used to collectively look up a group of multiple pieces of presence information provided by presence information providers who have agreed to a use policy, aggregates and stores the presence information under the group identifier, and delivers the presence information requested to the group identifier. Each presentity provides the presence server with its presence information targeted to the group identifier. Each watcher requests the group identifier for the presence information provided by the presentities, and receives the presence information delivered from the presence server.
摘要:
A subscriber notifies a concentrator of a desired target identifier. An originator collects target identifiers received by a sensor which receives a target identifier transmitted from a target device. The originator transmits the collected target identifiers to the concentrator. The concentrator notifies the subscriber of the originator when the target identifiers transmitted from the originator includes the desired target identifier. The subscriber notifies the originator of a specification. The originator transmits a message to the subscriber in accordance with the specification, the message including the desired target identifier and other target identifiers received at about the same time as the desired target identifier.
摘要:
Communication terminals are provided with a short range wireless communication interface. Some communication terminals are also provided with a long range wireless communication interface. A communication terminal having both interfaces is determined to become a segment manager by a plurality of communication terminals. A segment manager and its neighboring communication terminals constitute a segment and communicate with each other via the short range wireless communication interface. A segment manager distributes segment information and collects terminal information from communication terminals that belong to its own segment. The segment managers communicate with each other via the long range wireless communication interface. The segment managers exchange the terminal information related to each segment. Communication within a segment is performed through that segment alone via the short range wireless communication interface. Communication toward the outside of that segment is performed via the short range wireless communication interface and the long range wireless communication interface.
摘要:
A network system which provides each terminal user with differentiated service, dynamically changing service profiles even in the middle of a communication session. A service control database maintains service profile definitions. When a mobile node registers with a foreign agent to initiate a conmiunication session, a service profile setting controller in the mobile node's home server sets up a service profile for the mobile user. When an event occurs within a service profile updating controller, it indicates that some control condition specified in the service profile is met. The service profile updating controller then makes access to the service control database to obtain a new service profile and the mobile node's foreign server forwards it to the foreign agent, to which the mobile node is attached. The service profile that has been established in relevant network nodes, including the home agent and foreign agent, is dynamically updated with the new one.
摘要:
A user system for a distributed network whereby a user system which is not provided with a distributed application platform can be connected to a distributed network. A user information unit incorporates therein physical points corresponding to stream and network flow endpoints, respectively. A flow endpoint control channel connects a user signaling unit to the user information unit. The user signaling unit includes distributed communication control means, distributed network service controller, and information unit controller for controlling the user information unit by means of a flow endpoint control signal. The user information unit includes physical point linking unit, and flow endpoint control signal processing unit which cooperates with the user signaling unit by means of the flow endpoint control signal.
摘要:
The forklift controller changes the speed of the actuator, corresponding to the operational angle of the lift lever, and then changes the vehicle speed, corresponding to the amount of depression of an accelerator. This allows the controller to control the throttle opening corresponding to the operational angle of the lift lever, and together controls the amount of depression of the accelerator. During running without being loaded, the forklift controller changes the vehicle speed, corresponding to the amount of depression of the accelerator, and together determines the number of revolutions of the engine to the throttle opening so that the optimum fuel consumption can be obtained. The controller controls the throttle opening and speed ratio so that the vehicle speed and number of revolutions of the engine can be controlled.