Abstract: In a network system, an own subsystem recognition unit is provided in each of subsystems, and holds a state and a function of the own subsystem. A shared information communication unit acquires states and functions of the subsystems. An objective acceptance unit accepts a setting of a target state. A shared storage unit stores knowledge regarding a combination structure of functions of the respective subsystems necessary for realizing the target state. A structure setting unit automatically sets a combination structure of functions of the respective subsystems, including determining whether the function of each of the subsystems is to be activated, based on the target state, states and functions of the subsystems, and the knowledge regarding a combination structure. A role determination unit determines functions to be executed by the respective subsystems based on the automatically set combination structure. A role notification unit notifies the subsystems of the determined respective functions.

Abstract: A provider-side metadata acquisition part acquires provider-side metadata regarding a sensing data providing terminal. The provider-side metadata includes a current position of the sensing data providing terminal. Also, the user-side metadata acquisition part acquires user-side metadata regarding sensing data using terminal. A matching part performs matching with the user-side metadata, using the current position of the sensing data providing terminal included in the provider-side metadata and the current time, and decides whether to request the sensing data providing terminal to provide the sensing data. A request part requires the sensing data providing terminal to provide the sensing data in accordance with the decision by the matching part.

Abstract: A sensor management unit includes a sensing data obtaining unit that obtains sensing data generated by a sensor, an output determination unit that determines whether the sensing data is allowed to be output to a user based on a data catalog storing an attribute of the sensing data and storing a first item allowed to be output to the user, and an output unit that outputs the sensing data to the user in accordance with a result of the determination by the output determination unit.

Abstract: A sensor management unit includes an obtaining unit that obtains sensing data from a sensing device to generate sensing data of a plurality of sensing items, a detection unit that detects an overloaded state of the sensing device, a retrieval unit that determines, based on a detection result obtained by the detection unit, at least one sensing item to be retrieved from of the plurality of sensing items and retrieves the determined sensing item, and an output unit that outputs the retrieved sensing item to an external device.

Abstract: A sensor management unit receives, from at least one sensor device installed external to the sensor management unit, sensing data generated by the sensor device monitoring a target. The sensing data includes background noise data representing noise from a cause other than the target. The sensor management unit includes a background noise data obtaining unit that obtains the background noise data, a reliability determination unit that determines a reliability of the sensing data based on the background noise data, and a determination result output unit that outputs a result of the determination by the reliability determination unit.

Abstract: A sensor device transmits, to an external device installed external to the sensor device, sensing data generated from monitoring a target, and includes a sensor unit that generates sensing data including background noise data. The background noise data represents noise from a cause other than the target. The sensor device further includes an extraction unit that extracts the background noise data from the sensing data, and a transmission unit that transmits the background noise data extracted by the extraction unit to the external device.

Abstract: A sensing device management apparatus easily and appropriately generates a data catalog corresponding to sensor metadata. A device information obtaining unit obtains, based on data obtained by a sensing device for performing sensing on a measurement target, an address for obtaining device information about the sensing device, and obtains the device information by accessing the address. A data catalog generation unit generates a data catalog using the device information about the sensing device obtained by the device information obtaining unit.

Abstract: One mode of the present invention is configured to acquire sensor-side metadata including a first label corresponding to a label showing a name given in order to identify event data, to acquire app-side metadata including a second label that is an event condition showing a condition of an event and corresponds to the label, to determine, in a case where sensing data satisfies a requirement of an application, whether the first label and the second label are identical, and to transmit, in the case where these labels are identical, a dataflow control command including information specifying a sensor, information specifying the application and the event condition included in the app-side metadata.

Abstract: A provider-side metadata acquisition part acquires provider-side metadata regarding a sensing data providing terminal. The provider-side metadata includes a current position of the sensing data providing terminal. Also, the user-side metadata acquisition part acquires user-side metadata regarding sensing data using terminal. A matching part performs matching with the user-side metadata, using the current position of the sensing data providing terminal included in the provider-side metadata and the current time, and decides whether to request the sensing data providing terminal to provide the sensing data. A request part requires the sensing data providing terminal to provide the sensing data in accordance with the decision by the matching part.

Abstract: First and second data catalogs each indicate sensing data attributes. The first and second data catalogs each include a first word indicating an observation object of a sensor that generated sensing data and a second word indicating an observation characteristic of the sensor. A score calculation unit includes a first weight determination part, a second weight determination part, and a score calculation part. The first weight determination part determines a first weight value relating to the observation object, based on the relationship between the first words included in the first and second data catalogs. The second weight determination part determines a second weight value relating to the observation characteristic, based on the relationship between the second words included in the first and second data catalogs . The score calculation part calculates a score relating to the coincidence of the first and second data catalogs, using the first and second weight values.

Abstract: This invention further enhances the possibility of sensing data being distributed in the case where matching of metadata determines that conditions do not coincide. A data intermediary server 3 performs matching of provider-side metadata transmitted from a sensor management apparatus and user-side metadata transmitted from a data user-side server 2 on an item-by-item basis, calculates scores according to the degree of matching therebetween, and, in the case where the total value of the scores (similarity) does not meet a predetermined first threshold but is greater than or equal to a second threshold, generates provider-side metadata to which the total value of the scores and information on unmatched items of the user-side metadata are appended, and notifies this provider-side metadata to the sensor management apparatus as notification information.

Abstract: This data-flow control device has: a device-side metadata acquisition means that acquires device-side metadata about each of a plurality of devices; an application-side metadata acquisition means that acquires application-side metadata about an application that uses data provided by a device; a storage means that stores each type of metadata; a matching means that extracts a combination of an application and a device that can provide data satisfying the specification required by the application; and a data-flow control means that generates a data flow control command specifying a device and an application. If there is an item in which a mismatch has occurred among the items in each type of metadata, the matching means acquires information indicating whether changing the item in which a mismatch has occurred is allowed, and, on the basis of the information, changes the item in which a mismatch has occurred.

Abstract: A communication unit acquires sensor-side metadata, which is information relating to a sensor, and application-side metadata, which is information relating to an application. A comparison unit extracts a sensor that can provide the sensing data through matching between the sensor-side metadata and the application-side metadata, and a notification unit transmits, based on a result of the extraction, a data flow control command to a sensor management device. The sensor-side metadata and the application-side metadata contain data that can be handled as dynamic data.

Abstract: An instruction device includes: an acquiring unit configured to acquire provided metadata, which is attribute information relating to one or more attributes of sensing data, the provided metadata having one or more hierarchy levels that contain information shared by a plurality of sensors; an acquiring unit configured to acquire usable metadata, which is attribute information relating to one or more attributes of an application; a matching unit configured to perform matching between the provided metadata and the usable metadata for each hierarchy level, calculate, for each hierarchy level, an inter-level matching degree that indicates a degree of matching in the hierarchy level, and extract a sensor capable of providing the sensing data that satisfies a request of the application, based on an overall matching degree; and an instruction unit configured to transmit a data flow control instruction that specifies the application and the extracted sensor.

Abstract: This data-flow control device has: a device-side metadata acquisition means that acquires device-side metadata about each of a plurality of devices; an application-side metadata acquisition means that acquires application-side metadata about an application that uses data provided by a device; a storage means that stores each type of metadata; a matching means that extracts a combination of an application and a device that can provide data satisfying the specification required by the application; and a data-flow control means that generates a data flow control command specifying a device and an application. If there is an item in which a mismatch has occurred among the items in each type of metadata, the matching means acquires information indicating whether changing the item in which a mismatch has occurred is allowed, and, on the basis of the information, changes the item in which a mismatch has occurred.

Abstract: A matching apparatus includes: a sensor-side metadata acquisition unit that acquires sensor-side metadata; an application-side metadata acquisition unit that acquires application-side metadata; a matching unit that performs matching between the sensor-side metadata and the application-side metadata in which a first related term that is related to a term in the acquired sensor-side metadata and a second related term that is related to a term in the acquired application-side metadata are in common with each other, and extracts a sensor candidate; and a dataflow control command instruction unit that transmits a dataflow control command that includes information that specifies the sensor extracted by the matching unit and an application.

Abstract: Provided are a dataflow control command generation apparatus, a dataflow control command generation method, and a dataflow control command generation program by which open data is distributed as appropriate and open data can be smoothly used by an application.

Abstract: The present invention is provided with a sensor-side metadata acquiring unit that acquires sensor-side test metadata, an application-side metadata acquiring unit that acquires application-side test metadata, a matching unit that determines matching of acquired sensor-side test metadata and acquired application-side test metadata, and a dataflow control command instructing unit that transmits a dataflow control command instructing test data flow to an opening test application from a sensor or network adaptor specified by matched sensor-side test metadata and the application-side test metadata.

Abstract: This data-flow control device has: a device-side metadata acquisition means that acquires device-side metadata for multiple devices; an application-side metadata acquisition means that acquires application-side metadata for an application that uses data provided by a device; a storage means that stores both types of metadata; a matching means that matches both types of metadata and extracts a combination; and a data-flow control means that, on the basis of the extracted combination, generates a data-flow control command specifying a device and an application. Each type of metadata includes permission information indicating whether to permit a combination with multiple pieces of other party metadata. On the basis of the permission information, the matching means decides whether to generate a combination with a single piece of other party metadata, or to generate a combination with multiple pieces of other party metadata.

Abstract: This data-flow control device has: a device-side metadata acquisition means that acquires device-side metadata about a plurality of devices; an application-side metadata acquisition means that acquires application-side metadata about an application that uses data provided by a device; a storage means that stores each type of metadata; and a temporary matching means that, when the device-side metadata or the application-side metadata is newly registered, determines and reports whether a temporary pair is present, said temporary pair comprising the newly registered device-side metadata or application-side metadata and counterpart device-side metadata or the application-side metadata that meets a matching condition and was registered prior to the newly registered device-side metadata or application-side metadata.