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 contact material mainly composed of an Ag alloy, includes: an Ag alloy; and at least one main additive existing as a phase different from the Ag alloy and selected from the group consisting of tin oxide, nickel, nickel oxide, iron, iron oxide, tungsten, tungsten carbide, tungsten oxide, zinc oxide, and carbon, wherein when a metal atom constituting the main additive or the main additive is carbon, the Ag alloy contains a solid solution element having a vacancy binding energy lower than a vacancy binding energy that is a binding energy between the metal atom included in the main additive and a vacancy in an Ag metal, or a binding energy between carbon included in the main additive of carbon and a vacancy in an Ag metal, in an amount of 0.01 wt. % or more.

Abstract: A sensor management unit transmits first sensing data obtained by a first sensor monitoring a target to an external device external to the sensor management unit. The sensor management unit includes a processor, and a memory storing a program. The memory stores obtaining condition information that defines obtaining conditions for obtaining a plurality of candidate items of metadata to be associated with the first sensing data. The program causes the processor to implement obtaining at least one of the candidate items of metadata in accordance with the obtaining conditions and transmitting, to the external device, the obtained first sensing data and the obtained metadata in a manner associated with each other.

Abstract: An environment sensor includes a heat generation component, a first sensor and a second sensor disposed such that conductive heat resistances between the first sensor and the heat generation component and between the second sensor and the heat generation component are different from each other, and a controller. The first sensor and the second sensor are capable of measuring a predetermined physical quantity. The first sensor and the second sensor obtain a measured value from the predetermined physical quantity. The measured value fluctuates depending on ambient temperature. The controller is configured to correct the measurement value of one of the first sensor and the second sensor based on the measurement value of the first sensor and the measurement value of the second sensor when the predetermined physical quantity is measured.

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: 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: 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 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: 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: 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: A sensor management unit transmits first sensing data obtained by a first sensor monitoring a target to an external device external to the sensor management unit. The sensor management unit includes a processor, and a memory storing a program. The memory stores obtaining condition information that defines obtaining conditions for obtaining a plurality of candidate items of metadata to be associated with the first sensing data. The program causes the processor to implement obtaining at least one of the candidate items of metadata in accordance with the obtaining conditions and transmitting, to the external device, the obtained first sensing data and the obtained metadata in a manner associated with each other.

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 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: 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: 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 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 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 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 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: 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.