JP2019113950A - Sensor management device and method and program therefor, and matching device and method and program therefor - Google Patents

Abstract

To enable a user-side device to efficiently acquire sensor data corresponding to purposes of analysis neither too much nor to little.SOLUTION: A data provision-side sensor management device 1 generates, for each purpose of analysis corresponding to a purpose of use of a sensor, provision-side analysis purpose meta data AM and static meta data SM corresponding to each of sensors needed to achieve the purpose of analysis, and transmits those data to a data mediation device. Consequently, the data mediation device then performs matching between analysis purpose meta data transmitted from a user side as well, and the provision-side analysis purpose meta data AM and the static meta data SM.SELECTED DRAWING: Figure 1

Description

  An embodiment of the present invention relates to a sensor management device and its method and program, a matching device and its method and program, which are used, for example, in a system for distributing sensing data.

  In recent years, for example, a system has been proposed that promotes the utilization of sensing data by distributing sensing data collected from various sensor devices in the data market and acquiring and analyzing the sensing data according to the purpose by the user. There is. For example, in Patent Document 1, sensor data measured by a sensor is associated with a data item, a user ID, and a sensor ID, stored in a sensor data management table, and included in a data acquisition request transmitted from an analyst server Techniques for transmitting sensor data corresponding to data items and data accuracy to an analyst server are described.

JP, 2014-241098, A

  According to the technology described in Patent Document 1, the analyst can acquire corresponding sensor data by specifying data items such as “sex”, “age”, and “position information”. However, the analyst needs to specify data items corresponding to the analysis purpose without omission, and also needs to confirm whether many sensor data acquired correspond to the analysis purpose or not. It takes a lot of time and effort to check. In addition, if the designation of data items is restricted in order to reduce the amount of sensor data to be acquired, sensor data necessary for analysis may be insufficient, which may lead to a decrease in analysis accuracy.

  The present invention focuses on the above-mentioned circumstances, and one of the objects thereof is a sensor management apparatus, a method thereof and a program which enable a user of sensing data to efficiently acquire sensor data according to an analysis purpose without excess or deficiency. It is an object of the present invention to provide a matching device and its method and program.

  In order to solve the above problems, according to a first aspect of the present invention, there is provided a sensing data storage processing unit for storing in a memory sensing data representing a state of an observation target measured by the sensor management device; A first generation unit that generates a first metadata including information related to a state analysis purpose; and a second generation unit that generates second metadata including attribute information of the sensor or sensing data related to the analysis purpose And a metadata management unit that manages a generation unit, sensing data stored in the sensing data storage unit, the first metadata, and the second metadata in association with each other. is there.

  According to the first aspect of the present invention, the sensor management apparatus includes, for each analysis purpose, first metadata including information on the analysis purpose and attribute information of a sensor or sensing data related to the analysis purpose. Second metadata is generated, and the first and second metadata are managed in association with the sensing data stored in the memory.

  Therefore, in the apparatus for matching metadata, the first metadata including the analysis purpose generated by the sensor management apparatus, and the metadata including the analysis purpose on the user side generated similarly on the user side Between them, it is possible to perform matching processing between analysis purposes. For this reason, the user simply acquires the sensing data of all the sensors related to his / her analysis purpose without designating the sensor as the data acquisition target or the sensing data thereof simply by specifying the analysis purpose. As a result, it is possible to significantly reduce the labor and time involved in acquiring sensing data. In addition, accurate sensing processing can be performed by acquiring sensing data that is suitable for the analysis purpose without excess or deficiency.

  According to a second aspect of the present invention, in the first aspect, the first generation unit relates, as the first metadata, information on the analysis purpose and the analysis purpose for each of the analysis purposes. Metadata including the list information of the second metadata corresponding to the sensor or sensing data to be generated.

  According to the second aspect of the present invention, the first metadata includes the list information of the second metadata corresponding to the sensor or sensing data related to the analysis purpose. Therefore, it is possible to specify sensor or sensing data related to the analysis purpose by the first metadata.

  According to a third aspect of the present invention, in the first or second aspect, the first or second generation unit functions as the first or second metadata, the sensing data related to the analysis purpose Metadata that further includes information representing distribution conditions of

  According to the third aspect of the present invention, the information representing the distribution condition of the sensing data is added to the first or second metadata, so that the matching device matches the data distribution condition in addition to the matching process for analysis purpose. Processing can also be performed together.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a metadata transmitting unit and a sensing data transmitting unit are further provided. Then, the metadata transmission unit transmits the first metadata to a matching device that performs metadata matching processing. When the sensing data transmission instruction including the identification information of the first metadata and the destination information indicating the provision destination of the sensing data is received from the matching device by the sensing data transmission unit, the metadata management The sensing data associated with the first metadata included in the sensing data transmission command is read out from the memory with reference to the section, and the readout sensing data is included in the sensing data transmission command. It transmits to the said provision destination based on destination information.

  According to the fourth aspect of the present invention, when a transmission instruction of sensing data is received from the matching device, the sensing data associated with the first metadata is referred to as the first by referring to the metadata management unit. It becomes possible to deliver directly from the device to the second device as the transmission destination.

  According to a fifth aspect of the present invention, a matching device includes a first acquisition unit, a second acquisition unit, a determination unit, and a sensing data transmission command unit. A first acquisition unit, from a first device that provides sensing data representing a state of an observation target measured by a sensor, first metadata including information on an analysis purpose of the state of the observation target, and the analysis Acquiring second metadata including attribute information of the sensor or sensing data related to the purpose. A second acquisition unit includes a third device including information on a purpose of the analysis from a second device on the user side that analyzes the state of the observation target based on the sensing data acquired from the first device. Get metadata The determination unit compares the first metadata and the third metadata to determine whether to provide the sensing data. The sensing data transmission command unit is configured to use the sensing data related to the analysis purpose based on the second metadata with respect to the first device on the providing side when it is determined that the provision unit can provide the sensing data transmission command unit. It is intended to instruct transmission.

  According to the fifth aspect of the present invention, in the matching device, the first metadata generated by the first device on the data providing side and the third metadata generated by the second device on the data user side By comparing the metadata with each other, matching between analysis purposes is performed. Then, when it is determined that the analysis purpose matches and provision of the sensing data is possible, transmission of sensing data related to the analysis purpose is instructed to the first apparatus on the provider side. For this reason, the data user side simply designates the analysis purpose, without individually designating the sensor as the data acquisition target or the sensing data thereof, and without any excess or deficiency of the sensing data of all the sensors regarding the analysis purpose. It becomes possible to acquire, and it becomes possible to reduce the effort and time concerning acquisition of sensing data significantly by this. In addition, accurate sensing processing can be performed by acquiring sensing data that is suitable for the analysis purpose without excess or deficiency.

  According to a sixth aspect of the present invention, in the fifth aspect, the first or second metadata and the third metadata represent information related to the analysis purpose and a circulation condition of the sensing data. When the information is included, the determination unit compares the first metadata and the third metadata to determine whether the analysis purpose is the match / mismatch, and the first or the first The success or failure of the distribution condition of the sensing data is determined by comparing the second metadata with the third metadata.

  According to the sixth aspect of the present invention, in the matching device, when the analysis purpose is in agreement and the data circulation condition is established, a transmission instruction of sensing data is output. Therefore, it is possible to distribute sensing data in consideration of not only the analysis purpose but also the data distribution condition.

  That is, according to each aspect of the present invention, a sensor management device, its method and program, a matching device, and its method enabling a user of sensing data to efficiently acquire sensor data according to the purpose of analysis without excess or deficiency. And programs can be provided.

FIG. 1 is a block diagram for explaining an application example of a sensor management device according to the present invention. FIG. 2 is a view exemplifying the entire configuration of a sensing data distribution system provided with a sensor management apparatus according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating the hardware configuration of a sensor management device according to an embodiment of the present invention. FIG. 4 is a block diagram illustrating a software configuration of a sensor management device according to an embodiment of the present invention. FIG. 5 is a block diagram illustrating the configuration of an application apparatus used in the sensing data distribution system shown in FIG. FIG. 6 is a block diagram illustrating the configuration of a network server used in the sensing data distribution system shown in FIG. FIG. 7A is a view exemplifying a configuration of a provider-side analysis purpose catalog and a provider-side data catalog generated by the sensor management device shown in FIG. 4. FIG. 7B is a diagram exemplifying the configuration of a user-side analysis purpose catalog generated by the application apparatus shown in FIG. FIG. 8 is a diagram showing an example of the flow of processing in the sensor management device shown in FIG. FIG. 9 is a flow chart exemplifying the processing procedure and processing contents of the providing side catalog generation / transmission processing by the sensor management device shown in FIG. 4. FIG. 10 is a flow chart showing an example of the processing procedure and processing contents of the SDTM meta conversion processing in the providing side catalog generation / transmission processing shown in FIG. FIG. 11 is a flow chart exemplifying a processing procedure and processing contents of sensing data generation / transmission processing by the sensor management device shown in FIG. 4. FIG. 12 is a flowchart showing an example of the processing procedure and the processing content of the application apparatus shown in FIG. FIG. 13 is a flowchart showing an example of the processing procedure and processing contents of the network server shown in FIG. FIG. 14 is a diagram for describing an example of performing health monitoring of a bridge using the sensing data distribution system according to an embodiment of the present invention. FIG. 15 is a view showing an example of a provider side analysis purpose catalog generated by the sensor management device when analysis of the bridge health monitoring shown in FIG. 14 is performed. FIG. 16 is a diagram showing an example of a provider-side data catalog generated by the sensor management device when analysis of the health monitoring of the bridge shown in FIG. 14 is performed.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
[Example of application]
First, one application example of a sensor management device according to an embodiment of the present invention will be described.
FIG. 1 schematically shows a configuration example of a sensor management device in this application example.
The sensor management apparatus 1 includes a sensing data generation unit 2, a sensing data transmission unit 3, an analysis purpose metadata generation unit 4 as a first generation unit, and a static metadata generation unit 5 as a second generation unit. , A metadata transmission unit 6, and a metadata management unit 7.

  The sensing data generation unit 2 takes in sensing signals SS representing the state of the observation target from a plurality of sensors respectively installed at desired positions of the observation target. Then, the sensing data generation unit 2 generates the sensing data SD by sampling each of the sensing signals SS in accordance with the sampling rate set by the specification of the sensor or the like. Furthermore, the sensing data generation unit 2 associates the generated sensing data SD with an identification code (Identification Code: ID) (hereinafter referred to as sensing data ID) for individually identifying the sensing data SD (not shown). Remember to

  The static metadata generation unit 5 includes, for example, the attribute information SZ for each sensor based on the sensor including the specification of the sensor and the attribute information SZ related to the sensing data input by the sensing data provider at the input unit. Generate static metadata SM as second metadata. Then, the static metadata generation unit 5 gives an identification code (hereinafter referred to as a static metadata ID) for identifying the static metadata SM to the generated static metadata SM, The static metadata SM to which the static metadata ID is added is output to the metadata transmitting unit 6. Note that the static metadata SM may include information indicating trading conditions of sensing data and the like.

  The analysis purpose metadata generation unit 4 generates the first meta information including the attribute information AZ for each analysis purpose based on the attribute information AZ indicating the analysis purpose of the observation target input by the sensing data provider in the input unit, for example. Generate analysis purpose metadata AM as data.

  The analysis purpose metadata AM includes, for example, identification information of analysis purpose and information indicating a list of all sensors necessary to achieve the analysis purpose. The analysis purpose is, for example, information indicating what kind of analysis the sensor was installed on the observation target, and as identification information, for example, a name such as “vibration mode analysis” or “dangerous driving analysis” or an identification number Is used. The purpose of analysis is not limited to the above. Information indicating the list of sensors is generated, for example, as a list of static metadata IDs based on the static metadata SM of all the sensors necessary to achieve the analysis purpose.

  In the analysis purpose metadata AM, in addition to the identification information of the analysis purpose and the information indicating the list of sensors, for example, information indicating the installation place (measurement place) of the sensor and specifications of event data to be analyzed May be included. These pieces of information can also be included in the analysis purpose metadata AM by the sensing data provider inputting through the input unit.

  Further, the analysis purpose metadata generation unit 4 assigns an identification code (hereinafter referred to as analysis purpose metadata ID) for individually identifying the analysis purpose metadata AM to the generated analysis purpose metadata AM. . Then, the analysis purpose metadata AM to which the analysis purpose metadata ID is added is output to the metadata transmission unit 6.

  The metadata transmission unit 6 transmits the analysis purpose metadata AM generated by the analysis purpose metadata generation unit 4 to a data distribution management device (not shown). Further, the metadata transmission unit 6 is a static metadata in which a static metadata ID is described in the sensor list of the analysis purpose metadata among the static metadata SM generated by the static metadata generation unit 5 The SM is sent to the data distribution management device together with the analysis purpose metadata AM.

  At this time, the metadata transmitting unit 6 converts the analysis purpose metadata AM and the static metadata SM into an analysis purpose catalog and a data catalog respectively according to a predetermined format, and converts the converted catalog into a data distribution management device. You may make it transmit. These catalogs are also a type of metadata.

  In order to associate the sensing data, the analysis purpose metadata, and the static metadata, the metadata management unit 7 associates the respective IDs and stores them as metadata management information. When the analysis purpose catalog and the data catalog are generated, the numbers of these catalogs are associated with the ID of the sensing data and stored as the metadata management information.

  On the other hand, analysis purpose metadata corresponding to the purpose of analysis is also generated in the user side apparatus that desires to use the sensor data. The analysis purpose metadata on the user side includes identification information for analysis purpose and information on data trading conditions and the like. As the analysis purpose, similar to the analysis purpose metadata generated by the sensor management device 1, for example, “vibration mode analysis”, “dangerous driving analysis” or the like is assumed. Also in the user side apparatus, the analysis purpose metadata may be converted into the analysis purpose catalog as in the sensor management apparatus 1 on the providing side. Then, the user side device transmits the generated user side analysis purpose metadata or analysis purpose catalog to the data distribution management device.

  The data distribution management device stores the analysis purpose metadata AM and the static metadata SM on the provider side transmitted from the sensor management device 1 in the memory. When the data distribution management device receives the analysis purpose metadata on the user side from the user side device, the analysis purpose metadata on the provider side stored in the memory is the analysis purpose metadata on the user side. Match with AM and static metadata SM. Then, among the analysis purpose metadata AM and the static metadata SM on the provider side stored in the above memory, the analysis purpose metadata AM and static data that match the analysis purpose on the user side and satisfy the data trading conditions etc. When the target metadata SM is found, a sensing data transmission command (data flow control signal) is transmitted to the sensor management device 1.

  When the sensor management device 1 receives the sensing data transmission instruction, the sensor management device 1 refers to the metadata management information stored in the metadata management unit 7 and copes with the analysis purpose metadata designated by the sensing data transmission instruction. The sensor data SD of the sensor to be read is read from the memory, and the sensor data SD is transmitted to the user side device.

  With the above configuration, in the sensor management apparatus 1 serving as a provider of sensing data, analysis including identification information for analysis purpose and a list of sensors necessary for achieving the analysis purpose for each analysis purpose The object metadata AM is generated, and the analysis object metadata AM is transmitted to the data distribution management device together with the static metadata corresponding to each sensor described in the sensor list.

  Therefore, in the data distribution management apparatus, when the analysis purpose metadata is sent from the user side, the analysis purpose metadata of the user side and the analysis purpose metadata of the provider side provided from the sensor management apparatus 1 It is possible to perform a matching process between analysis purposes. Then, when the analysis purpose matches and the data distribution condition such as the data trading condition is satisfied, the sensor data SD of the plurality of sensors defined in the sensor list of the analysis purpose metadata is the user from the sensor management apparatus 1 It is distributed to the device at once.

  Therefore, the user simply specifies the analysis purpose and the data distribution condition, and does not individually specify the sensor for which data is to be acquired or its sensing data, and all sensors necessary for achieving his / her analysis purpose. The sensing data SD can be acquired without excess or deficiency, and the time and time required to acquire the sensing data SD can be greatly reduced. In addition, since it is possible to acquire the sensing data SD suitable for the analysis purpose without excess or deficiency, it becomes possible to perform analysis processing with high accuracy.

[One embodiment]
Next, an embodiment of the present invention will be described.
(Example of configuration)
(1) System FIG. 2 is a diagram showing an example of the entire configuration of a sensing data distribution system provided with a sensor management apparatus according to an embodiment of the present invention. The sensing data distribution system realizes the Sensing Data Trading Market (SDTM).

  The sensing data distribution system includes a network server 10 operating as a data distribution management device (also referred to as a data intermediary device or a match maker), a plurality of sensor management devices 21 to 2 n, and a plurality of application devices 41 to 41 as user side devices. It is equipped with 4m.

(2) Sensor Management Device The sensor management devices 21 to 2 n are operated by the provider of sensing data, and sensor groups 31 to 3 n are connected to the sensor management devices 21 to 2 n, respectively. Each of the sensor groups 31 to 3 n includes a plurality of sensors 311 to 31 k. These sensors 311 to 31 k are dispersedly installed at predetermined positions necessary to achieve the analysis purpose of the observation target.

  The sensor groups 31 to 3 n may be configured to include a plurality of one type of sensors, or may be configured to include a plurality of types of sensors in combination. As types of sensors, when the observation target is a structure, a manufacturing facility, a vehicle, etc., for example, an acceleration sensor or tilt sensor for measuring vibration or movement, a temperature sensor for measuring an environmental condition, humidity A sensor, an air pressure sensor, a wind force sensor, a position sensor using a GPS (Global Positioning System) for measuring a position, a monitoring sensor using a camera, or the like is used. In the case where the observation target is a person, various biometric sensors, position sensors, acceleration sensors, environment sensors, and the like are used. The number and type of sensors installed in the observation target, the installation position, and the like are not limited to those described above, and can be arbitrarily selected according to the purpose of analysis.

  The sensor management device 21 is configured of, for example, an information terminal device such as a personal computer or a smartphone, a network device such as a gateway, or a dedicated controller integrally configured with a sensor.

  FIG. 3 is a block diagram showing an example of the hardware configuration of the sensor management devices 21-2n. In FIG. 3, only the sensor management device 21 is illustrated for simplicity, and illustration of the other sensor management devices 22 to 2 n is omitted.

  The sensor management device 21 has a hardware processor 211A such as a CPU (Central Processing Unit) as hardware, and the hardware processor 211A includes a program memory 211B, a data memory 212, an input / output interface 213, and a sensor interface. 214 and the communication interface 215 are connected via a bus.

  The input / output interface 213 takes in the data input by the sensing data provider and outputs the display data to the display device 62 between the input device 61 and the display device 62 attached to the sensor management apparatus 21. Do the processing. The input device 61 and the display device 62 may use devices incorporated in the sensor management device 21, and may use input devices and display devices of other information terminals that can communicate via a network. .

  The sensor interface 214 receives the sensing signals SS1 to SSk measured by the sensors 311 to 31k constituting the sensor group 31, and converts the received sensing signals SS1 to SSk into digital signals by the A / D converter. Do. Communication between the sensor groups 31 to 3 n and the sensor interface 214 employs, for example, a wired interface such as a LAN (Local Area Network) or a low power wireless data communication standard such as a wireless LAN or Bluetooth (registered trademark). It can be performed using a wireless interface.

  The communication interface 215 performs data transmission between the network server 10 and the application devices 41 to 4 m via the network 50. As a communication protocol, although what is prescribed by network 50, such as TCP / IP (Transmission Control Protocol / Internet Protocol), is used, for example, it is not limited to this.

  The data memory 212 uses, as a storage medium, a combination of a non-volatile memory such as a hard disk drive (HDD) or a solid state drive (SSD) that can be written and read as needed, and a volatile memory such as a RAM. It consists of

FIG. 4 is a block diagram showing a software configuration in addition to the hardware configuration of the sensor management device 21 shown in FIG.
In the storage area of the data memory 212, a static metadata storage unit 2121, an analysis purpose metadata storage unit 2122, a sensing data storage unit 2123, a metadata management information storage unit 2124, and a providing side catalog storage unit 2125. It is provided. The storage units 2121 to 2125 are used to store static metadata, analysis purpose metadata, sensing data, metadata management information, analysis purpose catalog, and data catalog, which are output from the control unit 211, respectively.

  The control unit 211 includes the hardware processor 211A and the program memory 211B, and as a processing function unit by software, a static metadata generation unit 2111, an analysis purpose metadata generation unit 2112, and a sensing data generation unit A metadata management unit 2114, an SDTM meta conversion unit 2115, and a transmission control unit 2116 are provided. These processing function units are all realized by causing the hardware processor 211A to execute the application program stored in the program memory 211B.

  The static metadata generation unit 2111 takes in, from the input / output interface 213, the sensors 311 to 31k constituting the sensor group 31 and the attribute information related to the sensing data, which are input by the sensing data provider at the input device 61. Then, static metadata including the attribute information is generated for each of the sensors 311 to 31 k based on the acquired attribute information.

  For example, the static metadata generation unit 2111 indicates the specifications of the sensor and sensing data, the sensing data provider, the sensing data measurement location (the installation position of the sensor), and the sensing data provision period, and sensing data trading conditions. Generate static metadata, including information. The specifications of the sensor and sensing data include, for example, sensor sensitivity, dynamic range, spatial resolution, sampling rate, and the like.

  The static metadata generation unit 2111 stores the generated static metadata in the static metadata storage unit 2121 in association with a static metadata ID for individually identifying the static metadata. Let

  In addition, as a method of acquiring attribute information related to the sensor and sensing data, in addition to the method in which the sensing data provider inputs from the input device 61, the sensor manufacturer's website or the like is accessed to acquire the sensor specification or It is possible to use a method of accessing a web site managed by a provider and acquiring attribute information necessary for generating static metadata SM.

  The analysis purpose metadata generation unit 2112 takes in, from the input / output interface 213, attribute information regarding the analysis purpose of the observation target input by the sensing data provider at the input device 61. Then, based on the acquired attribute information, provider side analysis purpose metadata for each analysis purpose including the attribute information is generated.

  The provider side analysis purpose metadata includes, for example, information indicating an analysis purpose, information indicating a list of all sensors necessary to achieve the analysis purpose, and information indicating a sensor installation location (sensing data measurement location). , And information representing the specification of event data to be analyzed.

  The information representing the analysis purpose is information representing what kind of analysis the sensor has been installed on the observation target, and, for example, “vibration mode analysis” or “dangerous driving analysis” may be considered.

  Information indicating a list of sensors is generated based on static metadata of sensors necessary for achieving the analysis purpose among the static metadata of each sensor generated by the static metadata generation unit 2111. Be done. For example, information indicating the list of sensors is generated as a list of static metadata IDs of sensors necessary to achieve the analysis purpose.

  The analysis purpose metadata generation unit 2112 assigns, to the generated provider side analysis purpose metadata, an analysis purpose metadata ID for individually identifying the analysis purpose metadata. Then, the analysis purpose metadata storage unit 2122 stores the analysis purpose metadata to which the analysis purpose metadata ID is added.

  The sensing data generation unit 2113 takes in, from the sensor interface 214, each sensing signal obtained by measurement by each of the sensors 311 to 31k constituting the sensor group 31. Also, the sensing data generation unit 2113 reads static metadata corresponding to each of the sensors 311 to 31k constituting the sensor group 31 from the static metadata storage unit 2121, and the specifications of the sensors included in the static metadata Set the sampling rate based on. The sensing data generation unit 2113 generates sensing data by sampling each of the sensing signals received from the sensors 311 to 31 k according to the corresponding sampling rate.

  The sensing data generation unit 2113 adds a time stamp indicating the measurement date and time to the sensing data, generates a unique sensing data ID for each sensing data, and assigns the sensing data ID to the corresponding sensing data. . Then, the sensing data storage unit 2123 stores the sensing data to which the time stamp and the sensing data ID are given.

  The metadata management unit 2114 is configured to associate each analysis purpose metadata ID with each analysis purpose metadata ID to associate the analysis purpose metadata, the static metadata and the sensing data generated by the respective generation units 2111, 2122, and 2113 with each other. The target metadata ID and the sensing data ID are associated with each other and stored in the metadata management information storage unit 2124 as metadata management information.

  The SDTM meta-conversion unit 2115 refers to the metadata management information (SDTM meta-control signal) stored in the metadata management information storage unit 2124 and analyzes the analysis purpose metadata storage unit 2122 and the static metadata storage unit 2121. Load the analysis purpose metadata and static metadata that are associated with each other. Then, based on each of the read metadata, a provider-side analysis purpose catalog and data catalog are generated.

  FIG. 7A shows an example of the configuration of the analysis purpose catalog ACp and the data catalogs DCp1 to DCpk on the providing side. The analysis purpose catalog ACp on the provider side includes, as information elements, “analysis purpose”, “sensing data measurement place”, “event data specification” and “data catalog list”. Among them, in the "data catalog list", the numbers of data catalogs DCp1 to DCpk corresponding to the respective sensors 311 to 31k necessary to achieve the analysis purpose are described. Also, the analysis purpose catalog ACp on the provider side is assigned a unique analysis purpose catalog number for each catalog. Note that the analysis purpose catalog ACp on the provider side does not have to include all the above information elements, and the information elements to be included in the provider analysis purpose catalog ACp can be arbitrarily selected.

  The provider side data catalogs DCp1 to DCpk have, as information elements, "sensing data provider", "sensing data provision period", "sensing data measurement place", "sensing data target", "event data specification" and "data trading conditions" "including. Further, a unique data catalog number is assigned to each of the sensors 311 to 31k in the provider-side data catalogs DCp1 to DCpk. The provider data catalogs DCp1 to DCpk do not have to include all the above information elements, and the information elements included in the provider data catalogs DCp1 to DCpk can be arbitrarily selected.

  The SDTM meta conversion unit 2115 causes the providing side catalog storage unit 2125 to store the generated provider side analysis purpose catalog and the provided side data catalog. At the same time, the SDTM meta-conversion unit 2115 corresponds to the analysis purpose metadata ID corresponding to the analysis purpose catalog number given to the providing side analysis purpose catalog and the data catalog number given to the providing side data catalog. And in association with the static metadata ID, are stored in the metadata management information storage unit 2124.

  The transmission control unit 2116 reads out a providing side analysis purpose catalog and a providing side data catalog generated by the SDTM meta conversion unit 2115 from the providing side catalog storage unit 2125 every time a new providing side analysis purpose catalog and a providing side data catalog are generated. Then, these catalogs are sent from the communication interface 215 to the network server 10 together with the catalog registration request.

  Further, when the transmission control unit 2116 receives a data transmission instruction addressed to the own device from the network server 10, the analysis purpose catalog number included in the data transmission instruction and the metadata stored in the metadata management information storage unit 2124 Based on the management information, a sensing data ID to be transmitted is identified. Then, based on the sensing data ID, the corresponding sensing data is read from the sensing data storage unit 2123, and the sensing data is communicated based on the destination information of the user-side application device included in the sensing data transmission command. It is transmitted from the interface 215 to the application device of the request source.

(3) Application Device FIG. 5 is a block diagram showing an example in which the software configuration is added to the hardware configuration of the application devices 41 to 4m. In FIG. 5, only the application device 41 is shown for simplicity, and the illustration of the other application devices 42 to 4m is omitted.

  The application devices 41 to 4m are used by a user of sensing data, and are configured by, for example, personal computers. The application devices 41 to 4m are not limited to personal computers, and may be portable information terminals possessed by users or server computers.

  The application device 41 includes, for example, a hardware processor, a program memory, a data memory 412, an input / output interface 413, and a communication interface 414 as hardware, and these are connected via a bus (not shown). It has become.

  An input device 415 and a display device 416 are connected to the input / output interface 413. The input / output interface 413 performs processing for capturing data input by the user from the input device 415 and outputting display data generated by the control unit 411 to the display device 416 for display. The input device 415 and the display device 416 may use input devices and display devices of other information terminals that can communicate via the network 50, in addition to the devices incorporated in the application device 41.

  The communication interface 414 transmits data between the network server 10 and the sensor management devices 21 to 2 n through the network 50 under the control of the control unit 411. A communication protocol defined by the network 50 is used.

  The data memory 412 uses, as a storage medium, a non-volatile memory such as a hard disk drive (HDD) or a solid state drive (SSD) that can be written and read as needed, and a volatile memory such as a RAM. In the area, a catalog storage unit 4121 and a sensing data storage unit 4122 are provided.

  The catalog storage unit 4121 is used to store the user-side analysis purpose catalog ACu that the user intends to transmit to the network server 10. The sensing data storage unit 4122 is used to store sensing data transmitted from the sensor management devices 21 to 2 n.

  The control unit 411 includes a hardware processor such as a central processing unit (CPU), a program memory, and a working memory for temporarily storing data being processed, and inputs attribute information as a processing function unit by software. A reception unit 4111, a user-side analysis purpose catalog generation unit 4112, an analysis purpose catalog transmission control unit 4113, and a data / message reception control unit 4114 are provided. These processing function units are all realized by causing the hardware processor to execute the application program stored in the program memory.

  The attribute information input reception unit 4111 takes in, via the input / output interface 413, attribute information related to the analysis purpose on the user side input by the user via the input device 415.

  The user-side analysis-purpose catalog generation unit 4112 generates user-side analysis-purpose metadata for each analysis purpose based on the acquired attribute information on the analysis purpose. Then, the user side analysis purpose metadata is edited into a predetermined format to generate a user side analysis purpose catalog, and the generated user side analysis purpose catalog is stored in the catalog storage unit 4121.

  FIG. 7B shows an example of the configuration of the user side analysis purpose catalog ACu. The user side analysis purpose catalog ACu includes, as information elements, “analysis purpose”, “sensing data user”, “sensing data usage period”, “sensing data measurement place”, “event data specification” and “data trading condition” including. In addition, a unique analysis purpose catalog number is assigned to each user-side analysis purpose catalog ACu. Note that the user-side analysis purpose catalog ACu does not necessarily include all the above-mentioned information elements, and the information elements included in the user-side analysis purpose catalog ACu can be arbitrarily selected.

  The analysis purpose catalog transmission control unit 4113 completes the user side analysis purpose catalog generation process, and when the catalog transmission instruction is input from the input device 415, the corresponding user side analysis purpose catalog from the catalog storage unit 4121 Read out. Then, the user side analysis purpose catalog is transmitted from the communication interface 414 to the network server 10 together with the data provision request.

  After transmitting the data provision request, the data / message reception control unit 4114 receives sensing data transmitted from the sensor management apparatuses 21 to 2 n through the network 50 by the communication interface 414 and stores the sensing data in the sensing data storage unit 4122. . When the data / message reception control unit 4114 receives a notification message indicating that the corresponding sensing data does not exist from the network server 10 in response to the data provision request, the data / message reception control unit 4114 causes the display device 416 to display the notification message. .

(4) Network Server FIG. 6 is a block diagram showing an example of a configuration in which a software configuration is added to the hardware configuration of the network server 10.
The network server 10 is operated by a sensing data distributor as a data distribution management apparatus, and is configured by, for example, a server computer installed on the Web or on a cloud.

  The network server 10 includes, for example, a hardware processor, a program memory, a data memory 102, and a communication interface 103, and these are connected via a bus (not shown).

  The communication interface 103 performs data transmission between the sensor management devices 21 to 2 n and the application devices 41 to 4 m via the network 50. As the communication protocol, one defined by the network 50 is used.

  The data memory 412 uses, as a storage medium, a non-volatile memory such as a hard disk drive (HDD) or a solid state drive (SSD) that can be written and read as needed, and a volatile memory such as a RAM. A catalog storage unit 1021 and a matching result storage unit 1022 are provided in the area.

  The catalog storage unit 1021 is used to store the provider side analysis purpose catalogs and data catalogs sent from the sensor management devices 21 to 2 n. The matching result storage unit 1022 stores the matching result between the user side analysis purpose catalog sent from the application devices 41 to 4 m and the provider side analysis purpose catalog and data catalog stored in the catalog storage unit 1021. Used.

  The control unit 101 includes a hardware processor such as a CPU (Central Processing Unit), a program memory, and a work memory for temporarily storing data being processed. The control unit 101 also includes a request reception control unit 1011, a matching processing unit 1012, and a transmission control unit 1013 as a processing function unit based on software. These processing function units are all executed by causing the hardware processor to execute the application program stored in the program memory.

  When the request reception control unit 1011 receives a catalog registration request from the sensor management device 21-2n, the request reception control unit 1011 causes the catalog storage unit 1021 to store the provider analysis purpose catalog and the data catalog received together with the catalog registration request. When the request reception control unit 1011 receives a data provision request from the application devices 41 to 4 m, the request reception control unit 1011 notifies the matching processing unit 1012 of the user-side analysis purpose catalog received together with the data provision request.

The matching processing unit 1012 performs the following processing.
(1) The user side analysis purpose catalog received from the application devices 41 to 4m is compared (matching process) with the provider side analysis purpose catalog and data catalog stored in the catalog storage unit 1021 for each information element . Then, when the analysis purpose of the user matches the analysis purpose of the provider and the data distribution condition such as the data trading condition, the data transmission instruction is generated and passed to the transmission control unit 1013.

  (2) If, as a result of the matching process, no analysis purpose of the provider matching the analysis purpose of the user is found, or if the analysis purpose is found but the data distribution conditions such as the data trading conditions are not satisfied, A notification message indicating that there is no corresponding sensing data is generated and passed to the transmission control unit 1013.

  When the transmission control unit 1013 receives a data transmission instruction from the matching processing unit 1012, the transmission control unit 1013 transmits the data transmission instruction and the provider side analysis purpose catalog number to the sensor management devices 21 to 2 n of the provider. When the transmission control unit 1013 receives a notification message indicating that the corresponding sensing data does not exist from the matching processing unit 1012, the transmission control unit 1013 returns the notification message to the application devices 41 to 4 m of the request source.

(Operation example)
Next, an operation example of the sensing data distribution system configured as described above will be described.
(1) Generation and transmission of provider side analysis purpose catalog and data catalog FIG. 8 is a diagram showing an example of the flow of data in each part in the sensor management device 21-2n, and FIG. 9 is a processing procedure of the sensor management device 21-2n It is a flow chart which shows an example of processing contents.

(1-1) Generation of static metadata When each sensor 311 to 31 k is installed at a position corresponding to the analysis purpose in the observation target, the sensing data provider uses the input device 61 to specify the specifications and the like of each sensor 311 to 31 k. The attribute information SZ regarding the contained sensor and sensor data is input.

  Under the control of the static metadata generation unit 2111, the sensor management device 21 monitors the input of the above-described sensors 311 to 31k and the attribute information SZ related to the sensor data in step S10. Then, when the attribute information SZ is input, the attribute information SZ is taken in via the input / output interface 213, and static metadata SM is generated in step S11.

  The static metadata includes, for example, specifications representing the sensor and sensing data, the sensing data provider, the sensing data measurement location, the sensing data provision period, the sensing target, the sensing target, and the event specification, and further sensing data Contains information representing trading conditions. Among these, the specifications of the sensor and sensing data include, for example, the sensitivity of the sensor, the dynamic range, the spatial resolution, the sampling rate, and the like.

  The information representing the sensing data provider relates to an organization (individual or business entity) providing the sensing data, and includes the name of the organization providing the sensing data (organization name), the contact information of the organization (contact information), etc. .

  The information representing the sensing data measurement location relates to the location at which the observation target is sensed, and includes, for example, the type of the measurement location, the measurement location, and the like. The type of measurement location indicates either a fixed type in which the measurement location does not change for each sensing of the observation target, or a mobile type in which the measurement location changes for each sensing of the observation target. The measurement location is described when the type is fixed.

  The information representing the sensing data provision period relates to a period for providing the sensing data, and includes, for example, the date and time to start providing the sensing data, and the date and time to finish the provision of the sensing data.

  Information representing a sensing target relates to sensing data, and for example, the name of sensing data (sensing data name), brief description of sensing data (sensing data description), genre (genre name) using sensing data, observation target Contains information representing Among them, the information representing the observation object is constituted of, for example, the name of the observation object, the description of the observation object, and the information representing the attribute of the observation object. The attribute of the observation target also includes information indicating the name of the observation target attribute, the description of the observation target attribute, the unit of the observation target attribute, and the observation date and time type (intermittent type or regular type) of the observation target attribute.

  The information representing the event specification includes, for example, a label name (event data identification name) at the time of describing in the event condition, and information representing the meaning of data of event data and data representation (event data explanation).

  Information representing sensing data trading conditions relates to trading of sensing data, information indicating usage (for profit / not-for-profit / no limitation) of sensing data, and provision range indicating whether or not sensing data can be provided to a third party Information indicating that the transaction conditions such as data copying impossible / data copying possible / data modification possible / data processing possible etc. personal information showing whether or not personal information is included in the sensing data, anonymous processing information in the sensing data Anonymity processing information indicating whether or not it is included, information indicating a data validity period limitation indicating a start date and an expiration date of a validity period of sensing data, a payment type indicating a method of paying an expense for using sensing data, etc. .

  Then, the static metadata generation unit 2111 associates the generated static metadata SM1 to SMk with a static metadata ID for individually identifying the static metadata SM1 to SMk, and generates a static meta data. It is stored in the data storage unit 2121.

(1-2) Generation of Analysis Purpose Metadata Next, at the input device 61, the sensing data provider inputs attribute information AZ related to the analysis purpose of the observation target. The sensor management device 21 monitors the input of attribute information AZ related to the analysis purpose in step S12 under the control of the analysis purpose metadata generation unit 2112. Then, when the attribute information AZ related to the analysis purpose is input, the attribute information AZ is taken in via the input / output interface 213, and the analysis purpose metadata AM is generated in step S13.

  The analysis purpose metadata AM includes, for example, information indicating an analysis purpose, information indicating a list of all sensors necessary to achieve the analysis purpose, information indicating a sensing data measurement location, and event data to be analyzed And information representing the specification.

  The information representing the analysis purpose is information representing what kind of analysis the sensor has been installed on the observation target, and, for example, “vibration mode analysis” can be considered when the observation target is a bridge. In addition, the Example in the case of making the "vibration mode analysis" of this bridge into analysis object is demonstrated in detail later.

  Information indicating a list of sensors is a list of static metadata IDs of static metadata of sensors necessary for achieving the analysis purpose based on the static metadata SM1 to SMk of each of the sensors 311 to 31k. Generated by

  Then, the analysis purpose metadata generation unit 2112 assigns an analysis purpose metadata ID for individually identifying the analysis purpose metadata AM to the generated analysis purpose metadata AM. Then, the analysis purpose metadata storage unit 2122 stores the analysis purpose metadata AM to which the analysis purpose metadata ID is assigned.

(1-3) SDTM Meta-Conversion Processing The sensor management device 21 confirms that the generation of the static metadata SM1 to SMk and the analysis purpose metadata AM is completed in step S14. Under control, in step S15, SDTM meta conversion processing is performed as follows.

  FIG. 10 is a flowchart illustrating the processing procedure and the processing content of the SDTM meta conversion processing. That is, the SDTM meta-conversion unit 2115 first reads static metadata SM1 to SMk from the static metadata storage unit 2121 with reference to the SDTM meta-ized control signal MC in step S151. Then, in step S152, data catalogs DCp1 to DCpk are generated by editing the static metadata SM1 to SMk into respective predetermined formats.

  For example, as shown in FIG. 7A, the data catalogs DCp1 to DCpk have “sensing data provider”, “sensing data provision period”, “sensing data measurement place”, “sensing data target”, “event data specification” as information elements. And “data trading conditions”, and is further assigned a “data catalog number”. The details of each information element described above have been described in the static metadata generation process of (1-1), and thus the description thereof is omitted here.

  Next, in step S153, the SDTM meta conversion unit 2115 reads the analysis purpose metadata AM from the analysis purpose metadata storage unit 2122 according to the SDTM metathesis control signal MC. Then, in step S154, the analysis purpose catalog AMp is generated by editing the analysis purpose metadata AM into a predetermined format.

  For example, as shown in FIG. 7A, the analysis purpose catalog ACp includes “analysis purpose”, “sensing data measurement place”, “event data specification” and “data catalog list” as information elements, and further “analysis purpose catalog number”. "" Is given. In the "data catalog list", the numbers of data catalogs DCp1 to DCpk corresponding to the respective sensors 311 to 31k necessary to achieve the analysis purpose are described.

  Finally, in step S155, the SDTM meta conversion unit 2115 stores the data catalogs DCp1 to DCpk generated in step S122 and the analysis purpose catalog ACp generated in step S154 in the provider catalog storage unit 2125.

(1-4) Transmission of Providing-Side Catalog When the sensor management apparatus 21 finishes the generation of each catalog, the sensor management device 21 generates the above-mentioned information from the providing-side catalog storage unit 2125 in step S16 under the control of the transmission control unit 2116. Read the provider's analysis purpose catalog ACp and data catalogs DCp1 to DCpk. Then, the read analysis purpose catalog ACp and the data catalogs DCp1 to DCpk are transmitted from the communication interface 215 to the network server 10 together with the catalog registration request.

(2) Generation and Storage of Sensing Data The sensor management device 21 monitors the input of the operation start instruction in step S20. In this state, when an operation start instruction is input from the input device 61, under control of the sensing data generation unit 2113, the sensor management device 21 first detects the sensing signals SS1 to SS1 measured by the respective sensors 311 to 31k in step S21. SSk is taken from the sensor interface 214 at regular time intervals. The sensing signals SS1 to SSk are converted to digital signals that can be handled by the control unit 211 in the sensor interface 214.

  The sensing data generation unit 2113 generates sensing data SD1 to SDk as follows in step S22 each time the sensing signals SS1 to SSk are taken.

  That is, the sensing data generation unit 2113 first reads static metadata SM1 to SMk corresponding to the sensors 311 to 31k from the static metadata storage unit 2121. Then, the sampling rate is set based on the specifications of the sensors included in the static metadata SM1 to SMk.

  Next, the sensing data generation unit 2113 generates sensing data SD1 to SDk by sampling each of the sensing signals SS1 to SSk acquired from the sensor interface 214 according to the corresponding sampling rate. Then, the generated sensing data SD1 to SDk are stored in the sensing data storage unit 2123 in association with a unique sensing data ID for each sensing data.

  Thereafter, similarly, the sensing data generation unit 2113 generates sensing data and stores the sensing data in the sensing data storage unit 2133 every time the sensing signals SS1 to SSk are taken in at a constant time interval.

(3) Management of metadata Further, each time the sensor data generation unit 2113 generates the sensing data SD1 to SDk, the sensor management apparatus 21 performs control of the metadata at step S23 under the control of the metadata management unit 2114. Perform processing to generate management information.

  That is, the metadata management unit 2114 is a sensing data ID attached to the sensing data SD1 to SDk from the sensing data storage unit 2123, the static metadata storage unit 2121, and the analysis purpose metadata storage unit 2122, respectively. The static metadata ID given to the metadata SM1 to SMk and the analysis purpose metadata ID given to the analysis purpose metadata AM are read out. Then, these IDs are linked to each other, and each linked ID is stored in the metadata management information storage unit 2124 as metadata management information.

  In addition, the metadata management unit 2114 includes an analysis purpose catalog number of the analysis purpose catalog ACp stored in the provider side catalog storage unit 2125, a data catalog number described in the data catalog list of the analysis purpose catalog ACp, and the data catalog number. The sensing data IDs corresponding to the data catalogs DCp1 to DCpk to which the data catalog numbers are assigned are linked and managed by the above-mentioned metadata management information.

  Thus, the sensing data SD1 to SDk generated by the sensing data generation unit 2113 are correlated with the static metadata SM1 to SMk and the analysis purpose metadata AM, and the analysis purpose catalog ACp and the data catalogs DCp1 to DCpk. It is also correlated with each other.

(4) Generation and Transmission of User-Side Analysis Purpose Metadata When using the sensing data, the user uses the input device 415 attached to the application apparatus 41 to use attribute information on the analysis purpose and usage conditions of the sensing data. Enter information that represents

  FIG. 12 is a flowchart showing the processing procedure and the processing content of the application apparatus 41. Under the control of the attribute information input acceptance unit 4111, the application apparatus 41 performs, in step S30, the attribute information on the analysis purpose input by the input device 415 and information representing the use conditions of the sensing data as the input / output interface 413. Capture through.

  Next, under control of the user-side analysis purpose catalog generation unit 4112, the application device 41 first performs the input attribute information on the analysis purpose and the information representing the use condition of the sensing data in step S31. Generate user side analysis purpose metadata. Then, the user-side analysis purpose catalog ACu is generated by editing the user-side analysis purpose metadata into a predetermined format.

  For example, as shown in FIG. 7B, the user side analysis purpose catalog generation unit 4112 has “analysis purpose”, “sensing data user”, “sensing data use period”, “sensing data measurement place”, “event data specification”. User-side analysis purpose catalog ACu including “and“ data trading conditions ”. Then, a unique analysis purpose catalog number is assigned to this user side analysis purpose catalog ACu for each catalog, and the user side analysis purpose catalog ACu to which this catalog number is assigned is temporarily stored in the catalog storage unit 4121.

  Next, the application device 41 reads the user side analysis purpose catalog ACu from the catalog storage unit 4121 in step S32 under the control of the analysis purpose catalog transmission control unit 4113, and senses the user side analysis purpose catalog ACu. It transmits to the network server 10 from the communication interface 414 with a data provision request.

(5) Intermediary control of sensing data in the network server 10 (5-1) Acquisition and storage of analysis purpose catalog and data catalog on the provider side FIG. 13 is a flowchart showing the processing procedure and process contents of data intermediation control by the network server 10. is there.

  The network server 10 monitors the reception of the catalog registration request from the sensor management device 21-2n in step S40 under the control of the request reception control unit 1011. Then, when the catalog registration request is received by the communication interface 103, the providing side analysis purpose catalog ACp and the providing side data catalogs CDp1 to DCpk received together with the catalog registration request are stored in the catalog storage unit 1021 in step S41. .

  The above-described providing side catalog registration processing is performed each time the sensor management devices 21 to 2 n send the providing side analysis purpose catalog and the providing side data catalog. Therefore, the providing side analysis purpose catalog and the providing side data catalog transmitted from the sensor management devices 21 to 2 n are accumulated in the catalog storage unit 1021 without leak.

  In addition, whenever the network server 10 receives a new provider side analysis purpose catalog and a provider side data catalog, the provider side analysis purpose already stored in the catalog storage unit 4121 is the catalog number assigned to the catalog. Match catalog number of catalog and provider data catalog. When the new provider side analysis purpose catalog and the provider side data catalog having the same catalog number are received, the new provider side analysis purpose catalog and the above-mentioned new provider side analysis purpose catalog are substituted for the old catalog stored in the catalog storage unit 1021. Store the provider data catalog. That is, the old provider catalog stored in the catalog storage unit 1021 is updated to a new catalog.

(5-2) Reception of User-side Analysis Purpose Catalog In addition, the network server 10 monitors the reception of the sensing data provision request in step S42 under the control of the request reception control unit 1011. Then, when the sensing data provision request is received by the communication interface 103, the user side analysis purpose catalog ACu received together with the sensing data provision request is temporarily stored in the catalog storage unit 1021.

(5-3) Matching between the user side analysis purpose catalog and the provider side catalog When the user side analysis purpose catalog ACu is received, the network server 10 first controls the matching processing unit 1012, in step S43, The newly received user side analysis purpose catalog ACu is matched with each of a plurality of provider side analysis purpose catalogs ACp stored in the catalog storage unit 1021. The matching process between the analysis purpose catalogs ACu and ACp is performed, for example, in the example of FIG. 7A and FIG. 7B for three items of “analysis purpose”, “sensing data measurement place” and “event data specification”.

  In addition, as a method of matching, for example, binomial operation of data is performed for each of the items to calculate the degree of coincidence, and the result is scored, or the content of the information is associated in advance for each of the items. Although what is represented by the above-mentioned identification number, the above-mentioned identification numbers are compared for each item, the degree of coincidence is determined, and the result may be scored may be considered, but it is not limited thereto.

  The matching processing unit 1012 determines in step S44 whether or not all the three items match as a result of the matching process of the analysis purpose catalogs ACu and ACp. Then, when all the three items match, the data catalog number is extracted from the data catalog list of the analysis purpose catalog ACp in step S45. Then, in step S47, one provider data catalog DC1 to DCk is selected based on the extracted data catalog number, and the selected provider data catalog (for example, DCp1) and the user side analysis purpose catalog are selected. Each item regarding the data circulation condition is matched with ACu in step S48. For example, in the example of FIG. 7A and FIG. 7B, matching is performed for each of the “data provision period” and the “data use period” and the “data trade condition”.

  The matching processing unit 1012 determines in step S49 whether or not both of the two items related to the data distribution condition match. As a result of this determination, if both of the above two items match, the data catalog number is stored in the working memory.

  Similarly, until it is determined in step S46 that the unselected data catalogs DCp1 to DCpk have disappeared in step S46, the matching processing unit 1012 selects the unselected providing side data catalogs DCp2 to DCpk one by one in step S47. A matching process is performed between the provider-side data catalogs DCp2 to DCpk and the user-side analysis purpose catalog ACu to determine whether the data distribution conditions match or not. Then, the determination results are stored in the working memory.

(5-4) Transmission of sensing data transmission command or non-corresponding message The matching processing unit 1012 provides all of the above as a result of the matching process between the user side analysis purpose catalog ACu and all the provider side data catalogs DCp1 to DCpk. If the item related to the data distribution condition of the side data catalog DCp1 to DCpk matches the item related to the data distribution condition described in the user side analysis purpose catalog ACu, the process proceeds to step S50.

  In step S50, the network server 10 generates a sensing data transmission instruction Ru under the control of the transmission control unit 1013, and becomes the transmission source of the provider side analysis purpose catalog ACp from the communication interface 103. Transmit to the sensor management device 21. At this time, the sensing data transmission command Ru includes the analysis purpose catalog number of the provider side analysis purpose catalog ACp and the destination information (address information) of the application apparatus used by the user of the sensing data.

  If the provider side analysis purpose catalog which matches the user side analysis purpose catalog is not found as a result of the matching process in steps S43 and S44, the network server 10 performs control of the transmission control unit 1013 in step S51. A message indicating that there is no corresponding sensing data is generated, and the message is returned to the application device 41 as the data provision request source. Further, as a result of the matching process between the user side analysis purpose catalog and the provider side data catalog in the above steps S48 and S49, even if there is only one provider side data catalog, the item regarding the data distribution condition described in the user side analysis purpose catalog ACu Also in the case where the network server 10 does not match the above, the network server 10 generates a message indicating that there is no corresponding sensing data in step S51 under the control of the transmission control unit 1013, and the message is used as the application device 41 of the data provision request source. Return to.

(6) Distribution of Sensing Data As shown in FIG. 11, the sensor management devices 21 to 2 n perform processing of generating and storing sensing data at steps S21 to S23, and under the control of the transmission control unit 2116, step S24. In the above, the reception of the sensing data transmission command Ru from the network server 10 is monitored. In this state, when the sensing data transmission instruction Ru is received, the transmission control unit 2116 executes sensing data distribution processing as described below in step S25.

  That is, the transmission control unit 2116 reads out the metadata management information stored in the metadata management information storage unit 2124, refers to the metadata management information, and analyzes the purpose included in the received sensing data transmission instruction Ru. Identify the sensing data ID linked to the catalog number. Then, the sensing data associated with the specified sensing data ID is read out from the sensing data storage unit 2123, and the sensing data is transmitted from the communication interface 215 to the application device 41 of the data provision request source. The information indicating the data provision request source uses the destination information (address information) of the application apparatus included in the sensing data transmission instruction Ru.

  The sensor management apparatus 21 receives the above-mentioned sensing data according to the procedure shown in FIG. 11 until the operation termination of the sensor management apparatus 21 or cancellation of the contract related to provision of sensing data is input by the input device 61 and detected in step S26. Execute generation, storage, and delivery process repeatedly.

(7) Processing when there is no corresponding sensing data When the application device 41 receives from the network server 10 a message indicating that there is no corresponding data at the communication interface 414, the application device 41 controls the data / message reception control unit 4114. Below, in step S35 shown in FIG. 12, the received message is output from the input / output interface 413 to the display device 416. As a result, the display device 416 displays the above message. Note that the above message may include information indicating the reason for the mismatch as a result of the matching.

  The user can recognize from the displayed message that there is no sensing data corresponding to the analysis purpose requested by the user. Then, for example, it is possible to ease the data distribution condition of the user side analysis purpose catalog (for example, raise the acquisition desired price of information) and retransmit the user side analysis purpose catalog ACu after the data distribution condition change. Become.

[Example]
Next, one example of the sensing data distribution system according to the embodiment described above will be described. In this embodiment, the above-mentioned sensing data distribution system is used to perform health monitoring of a bridge as an observation target.

  14 to 16 are views for explaining this embodiment. FIG. 14 (a) shows an example of a bridge, which has a structure in which both ends of the bridge girder portion BR are supported by bridge leg portions C12 and C13.

  In a bridge having such a structure, for example, when an earthquake occurs and vibration is added, the bridge girder portion RB has a primary mode as exemplified in FIGS. 14 (b), (c), (d) and (e), It is assumed that vibrations in the second order mode, the third order mode and the fourth order mode occur. By monitoring these vibration modes, health monitoring of the bridge can be performed.

  Therefore, when the central part of the bridge girder part BR and a predetermined position between the central part and both ends, specifically, when the total length of the bridge girder part BR is L, L from the both ends of the bridge girder part R toward the center The acceleration sensors Ga, Gb and Gc are respectively installed at the position of / 6. These acceleration sensors Ga, Gb, Gc measure the vibration generated in the bridge beam portion RB, and output a sensing signal indicating the measured waveform to the sensor management device 21.

In the input device 61, the sensing data provider inputs “analysis purpose =“ vibration mode analysis ”as the purpose of installing the sensors Ga, Gb and Gc on the bridge. Further, as attribute information AZ for analysis purpose, for example, measurement location = “bridge name (BR bridge)” and event specification = “data at the time of earthquake occurrence” are input. In addition, as the sensor Ga, Gb, Gc and attribute information SZ related to the sensing data, for example, sensing data provider = 株式会社 corporation, sensing data provision period = September 2017-August 1818, sensing data measurement location = Near the center and both ends of the bridge girder part, sensing data target (sensor specification) = acceleration data, measurement time 300 seconds, sampling rate 200 Hz, acceleration sensor type x, model number y, unit m / g ² , sensing event specification = Enter "Always". Further, as data trading conditions, for example, 1 data ○ yen, “redistribution prohibited” is input.

  The sensor management apparatus 21 first generates analysis purpose metadata including the input analysis purpose and attribute information thereof by the analysis purpose metadata generation unit 2112, and the static metadata generation unit 2111 causes the sensor Ga, For each of Gb and Gc, static metadata including the sensor Ga, Gb, and Gc and attribute information SZ related to sensing data, and information indicating data trading conditions is generated. Then, based on the analysis purpose metadata and the static metadata generated by the SDTM meta conversion unit 2115, the provider side analysis purpose catalog ACp and the data catalog DCpa defined in the data catalog list of the analysis purpose catalog ACp. , DCpb and DCpc respectively.

  FIG. 15 shows an example of the analysis purpose catalog ACp, and FIG. 16 shows an example of the data catalogs DCpa, DCpb and DCpc. In FIG. 16, only DCpa is shown for simplicity, and illustration of other data catalogs is omitted.

  On the other hand, the user side inputs “vibration mode analysis” in the application device 41 as an analysis purpose. In addition, for example, measurement location = "bridge name (BR bridge)" as attribute information for analysis purpose, "data at the time of earthquake occurrence" as event data specification, and further, sensing data user name, sensing data utilization period, data Enter trading conditions.

  The application device 41 generates analysis purpose metadata including the input information, and generates a user side analysis purpose catalog based on the analysis purpose metadata. Then, the application device 41 transmits the user side analysis purpose catalog to the network server 10.

  The network server 10 receives the provider side analysis purpose catalog and the data catalog transmitted from the sensor management devices 21 to 2 n and stores them in the catalog storage unit 1021. When the network server 10 receives the user-side analysis purpose catalog from the application device 41, the network server 10 receives the user-side analysis purpose catalog as all the provider-side analysis purpose catalogs and data catalogs stored in the catalog storage unit 1021. Match. Then, when a provider-side analysis catalog and a data catalog that match the user-side analysis purpose catalog, the information item and the data distribution condition are found, the network server 10 transmits a sensing data transmission command Ru to the corresponding sensor management device 21.

  When receiving the sensing data transmission command Ru, the sensor management device 21 receives sensing data corresponding to each sensor Ga, Gb, Gc associated with the analysis purpose catalog specified by the transmission command Ru in the sensing data storage unit 2133. , And transmitted to the application device 41 on the user side.

  Therefore, when analyzing the vibration mode of the bridge to be observed at the time of earthquake occurrence, the user side simply specifies the analysis purpose, the measurement location, the event data specification, and the data distribution condition to obtain the sensor to be acquired. It becomes possible to acquire sensing data by a plurality of sensors necessary for analysis without excess and deficiency without specifying. Therefore, it is possible to greatly reduce the time and effort on the user side when trying to acquire sensing data, and because it is possible to acquire sensing data necessary for analysis without excess or deficiency, high-precision vibration mode analysis It can be carried out.

(Effect of one embodiment)
As described above, in one embodiment, the sensor management apparatus 21 to 2n operated by the sensing data provider side provides the provider side analysis purpose catalog ACp and the analysis purpose for each analysis purpose corresponding to the purpose of use of the sensor. The data catalogs DCp1 to DCpk corresponding to all the sensors necessary for achieving are generated, transmitted to the network server 10, and registered. Further, in the application devices 41 to 4m used by the user side, a user side analysis purpose catalog ACu including the analysis purpose corresponding to the application of sensing data, its attribute information and data distribution conditions is generated and transmitted to the network server 10 . Then, the network server 10 matches the user side analysis purpose catalog ACu with the provider side analysis purpose catalog ACp and the data catalogs DCp1 to DCpk, and corresponds to the network server 10 when the analysis purpose and data distribution condition of both match. The sensor data transmission command Ru is transmitted to the sensor management device 21. The sensor management device 21 reads out all the corresponding sensing data according to the sensing data transmission command Ru, and distributes the data to the application device 41 on the user side.

  Therefore, in order to achieve the analysis purpose of the user without separately designating the sensor as the data acquisition target or the sensing data thereof simply by inputting and designating the analysis purpose, the attribute information, and the data distribution condition. It is possible to acquire all the sensing data necessary for the measurement without excess or deficiency, and it is possible to greatly reduce the labor and time involved in acquiring the sensing data. In addition, since it is possible to acquire the sensing data SD suitable for the analysis purpose without excess or deficiency, it becomes possible to perform analysis processing with high accuracy. In addition, since it is possible to acquire sensing data that is suitable for the analysis purpose without excess or deficiency, it is possible to perform analysis processing with high accuracy.

[Modification]
While the embodiments of the present invention have been described in detail, the above description is merely illustrative of the present invention in all respects. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. That is, in the implementation of the present invention, a specific configuration according to the embodiment may be appropriately adopted.

  (1) For example, in the one embodiment, each time the network server 10 transmits a new user side analysis purpose catalog from the application device 41 to 4m on the user side, the new user side analysis purpose catalog is Is matched with the provider catalog stored in the catalog storage unit. However, the present invention is not limited thereto, and the user side analysis purpose catalog is stored in the catalog storage unit, and in this state, when the new provider side analysis purpose catalog and data catalog are sent from the sensor management device 21-2n, the above user The side analysis purpose catalog may be matched with the new provider side analysis purpose catalog and data catalog.

  In this way, even when the provider side analysis purpose catalog that matches the user side analysis purpose catalog is not found when the application devices 41 to 4m transmit the user side analysis purpose catalog, the sensor management device 21 to thereafter If a new provider side analysis purpose catalog is transmitted from 2n and the user side analysis purpose catalog matches the new provider side analysis purpose catalog, the user side can receive sensing data.

  (2) In the above embodiment, the sensor management devices 21 to 2 n generate the analysis purpose catalog and the data catalog based on the analysis purpose metadata and the static metadata, and transmit these catalogs to the network server 10 I did it. However, analysis purpose metadata and static metadata may be associated with each other and sent to the network server as they are without generating a catalog. In this case, also in the application apparatuses 41 to 4m on the user side, analysis purpose metadata is transmitted without generating an analysis purpose catalog.

  (3) In the embodiment, the network server 10 first performs a matching process to determine whether the analysis purpose and attributes of the analysis purpose catalogs ACp and ACu match or not, and then the analysis purpose catalog ACu and data. Matching processing for determining matching / mismatching of data distribution conditions with catalogs DCp1 to DCpk is performed, and when the above analysis purpose and its attribute and the above data distribution conditions both match, sensing data transmission instruction Ru Was sent.

  However, the present invention is not limited thereto, and in the case of sensing data that does not require matching of data distribution conditions, only matching between analysis purpose catalogs ACp and ACu is performed, and if both match, sensing data transmission instruction Ru is transmitted. It is also good. In this way, the matching process between the analysis purpose catalog ACu and the data catalogs DCp1 to DCpk can be omitted.

  (4) If the data distribution conditions defined by the data catalogs DCp1 to DCpk are common, information representing the common data distribution conditions may be included in the provider side analysis purpose catalog ACp. In this way, the network server 10 simultaneously determines the match / mismatch of the analysis purpose and the data distribution condition only by the matching process between the analysis purpose catalogs ACp and ACu without referring to the data catalogs DCp1 to DCpk one by one. It is possible to

  (5) In the above-described embodiment, as one example, health monitoring of a bridge has been described as an example, but health monitoring of a vehicle, analysis of driver's operation concentration, manufacturing equipment such as a production line, etc. Other embodiments are also conceivable, such as analysis of operating conditions in

  (6) In the above embodiment, the matching process of the analysis purpose catalog and the data catalog is performed in the network server 10 as an example. However, the matching process may be performed in the sensor management devices 21 to 2n. That is, the function of the matching device is provided in the sensor management device. With such a configuration, the user-side application device needs to transmit the user-side analysis purpose catalog to all the sensor management devices targeted for data acquisition, but there is an effect that the network server can be made unnecessary. can get.

  Further, as another configuration, the data distribution server temporarily receives the user side analysis purpose catalog transmitted from the application apparatus, and the data distribution server transmits the user side analysis purpose to all sensor management devices to be data acquisition targets. A configuration is conceivable in which a catalog is distributed, and each sensor management device matches the distributed user-side analysis purpose catalog with a provider-side analysis purpose catalog stored in the own device.

  (7) In the above embodiment, the network server 10 performs the matching process of the analysis purpose catalog and the data catalog as an example. However, the matching process is performed by the application devices 41 to 4n on the user side. It is also good. That is, the function of the matching device is provided to the user side device. With such a configuration, the sensor management device needs to transmit the provider side analysis purpose catalog and the data catalog to all the user side application devices, but the effect that the network server can be eliminated can be achieved.

  In another configuration, the provider side analysis purpose catalog and data catalog transmitted from the sensor management device are temporarily received by the data distribution server, and the data distribution server receives the provider side analysis purpose catalog and data catalog for all application devices. A configuration is also conceivable in which the user side analysis purpose catalogs distributed to each application apparatus by the application apparatus are matched with the distributed provider analysis purpose catalogs and data catalogs distributed above.

  Furthermore, processing functions included in the matching device as the data distribution management device, such as metadata matching processing and data transfer control processing, may be executed in the application device. In this way, the following effects can be expected. That is, it is assumed that sensing data is provided and used in a state where the provider of sensor data and the user are opposed to each other without intervention of the matching device during the period before the operation of the sensing data distribution system is started. Be done. In such a case, if the application apparatus is provided with a metadata matching processing function, a data transfer control processing function, etc. as described above, the sensor data provider and the user can be used without relying on the matching apparatus. It becomes possible to distribute sensor data according to the purpose of analysis.

  In short, the present invention is not limited to the above embodiments as it is, and at the implementation stage, the components can be modified and embodied without departing from the scope of the invention. In addition, various inventions can be formed by appropriate combinations of a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, components in different embodiments may be combined as appropriate.

[Supplementary note]
A part or all of the above embodiment can be described as shown in the following appendices besides the claims, but is not limited thereto.
(Supplementary Note 1)
A sensor management device comprising a hardware processor and a memory, the sensor management device comprising:
The hardware processor is
Storing in the memory sensing data representing the state of the observation object measured by the sensor;
Generating first metadata including information on an analysis purpose of the state of the observation target;
Generating second metadata including attribute information of the sensor or sensing data related to the analysis purpose,
It is configured to manage the sensing data stored in the memory, the first metadata, and the second metadata in association with each other.
Sensor management device.

(Supplementary Note 2)
A matching device comprising a hardware processor and a memory, the matching device comprising:
The hardware processor is
It relates to the first metadata including information on the analysis purpose of the state of the observation target from the first device on the provider side which provides the sensing data representing the state of the observation object measured by the sensor, and the analysis purpose Acquiring second metadata including attribute information of the sensor or sensing data;
Acquiring third metadata including information related to the purpose of the analysis from the second apparatus on the user side that analyzes the state of the observation target based on the sensing data acquired from the first apparatus;
The first metadata and the third metadata are compared to determine whether to provide the sensing data.
The first device on the provider side is instructed to transmit sensing data related to the analysis purpose based on the second metadata when it is determined by the determination unit that the data can be provided. The
Matching device.

(Supplementary Note 3)
A sensor management method performed by a device having a hardware processor and a memory, comprising:
Storing the sensing data representing the state of the observation target measured by the sensor in a memory;
The hardware processor generating first metadata including information on an analysis purpose of the state to be observed;
The second hardware processor generating second metadata including attribute information of the sensor or sensing data related to the analysis purpose;
A sensor management method comprising: a process in which the hardware processor associates and manages sensing data stored in the memory, the first metadata, and the second metadata.

(Supplementary Note 4)
A method of matching metadata performed by a device having a hardware processor and a memory, the method comprising:
First metadata including information on an analysis purpose of the state of the observation target, from the first apparatus on the providing side which provides the sensing data representing the state of the observation target measured by the sensor by the hardware processor; Obtaining second metadata including attribute information of the sensor or sensing data related to the analysis purpose;
A third meta including information regarding the purpose of the analysis from a second device on the user side that analyzes the state of the observation target based on the sensing data acquired from the first device by the hardware processor. Process of acquiring data,
Determining the availability of the sensing data by comparing the first metadata and the third metadata by the hardware processor;
When it is determined that the hardware processor can be provided by the determination unit, transmission of sensing data related to the analysis purpose to the first apparatus on the provider side based on the second metadata is performed. A matching method comprising the steps of:

1 ... sensor management device, 2 ... sensing data generation unit, 3 ... sensing data transmission unit,
4 ... static metadata generation unit, 5 ... analysis purpose metadata generation unit, 6 ... metadata transmission unit,
7 ... metadata management unit, 50 ... network, 61 ... input device,
62: Display device, 10: Network server,
101: Control unit of network server 102: Data memory
103 ... communication interface, 1011 ... request reception control unit,
1012 ... matching processing unit, 1013 ... transmission control unit, 1021 ... catalog storage unit,
1022 ... matching result storage unit, 21 to 2 n ... sensor management device,
211: control unit of sensor management apparatus, 211A: hardware processor,
211 B: Program memory, 212: Data memory,
213 ... input / output interface, 214 ... sensor interface,
215 ... communication interface, 2111 ... static metadata generation unit,
2112 ... analysis purpose metadata generation unit, 2113 ... sensing data generation unit,
2114 ... metadata management unit, 2115 ... SDTM meta conversion unit,
2116 ... transmission control unit, 2121 ... static metadata storage unit,
2122 ... analysis purpose metadata storage unit, 2133 ... sensing data storage unit,
2124 ... metadata management information storage unit, 2125 ... provider catalog storage unit,
31 to 3 n: sensor group, 311 to 31 k: sensor,
41 ... 4 m ... application device, 411 ... control unit of application device,
412 ... data memory, 413 ... input / output interface,
414 ... communication interface, 415 ... input device, 416 ... display device,
4111 ... attribute information input reception unit, 4112 ... user side analysis purpose catalog generation unit,
4113 ... analysis purpose catalog transmission control unit, 4114 ... data / message reception control unit,
4121 ... catalog storage unit, 4122 ... sensing data storage unit.

Claims (10)

A sensing data storage processing unit that stores, in a memory, sensing data representing a state of an observation target measured by the sensor;
A first generation unit configured to generate first metadata including information on an analysis purpose of the state of the observation target;
A second generation unit generating second metadata including attribute information of the sensor or sensing data related to the analysis purpose;
A sensor management apparatus, comprising: a metadata management unit that manages sensing data stored in the memory, the first metadata, and the second metadata in association with each other. The first generation unit, as the first metadata, for each of the analysis purposes, information on the analysis purpose and a list of the second metadata corresponding to sensors or sensing data related to the analysis purpose Generate metadata including information and
The sensor management device according to claim 1. The first generation unit or the second generation unit further includes, as the first metadata or the second metadata, metadata further including information representing a distribution condition of the sensing data related to the analysis purpose. To generate
The sensor management apparatus according to claim 1. A metadata transmission unit that transmits the first metadata to a matching device that performs metadata matching processing;
When a sensing data transmission instruction including identification information of the first metadata and destination information indicating a provision destination of the sensing data is received from the matching device, the sensing is performed with reference to the metadata management unit. The sensing data associated with the first metadata included in the data transmission command is read from the memory, and the read sensing data is read based on the destination information included in the sensing data transmission command. The sensor management device according to any one of claims 1 to 3, further comprising: a sensing data transmission unit for transmitting data to the sensor management unit. It relates to the first metadata including information on the analysis purpose of the state of the observation target from the first device on the provider side which provides the sensing data representing the state of the observation object measured by the sensor, and the analysis purpose A first acquisition unit that acquires second metadata including attribute information of the sensor or sensing data;
Second metadata is acquired from the second device on the user side that analyzes the state of the observation target based on the sensing data acquired from the first device, and second metadata including information related to the purpose of the analysis And the acquisition department of
A determination unit that compares the first metadata and the third metadata to determine whether to provide the sensing data;
A sensing data transmission command that instructs the first apparatus on the provider side to transmit sensing data related to the analysis purpose based on the second metadata when it is determined by the determination unit that the data can be provided. A matching device comprising a part. When the first or second metadata and the third metadata include information related to the analysis purpose and information representing a distribution condition of the sensing data.
The determination unit compares the first metadata and the third metadata to determine whether the analysis purpose is the match / mismatch, and the first or second metadata and the third metadata. Determine whether the distribution condition of the sensing data is met or not by comparing with metadata.
A matching device according to claim 5. A sensor management method executed by a sensor management device, comprising:
Storing the sensing data representing the state of the observation target measured by the sensor in a memory;
The sensor management apparatus generates first metadata including information on an analysis purpose of the state of the observation target;
Generating, by the sensor management apparatus, second metadata including attribute information of the sensor or sensing data related to the analysis purpose;
A sensor management method comprising: a process in which the sensor management apparatus manages the sensing data stored in the memory, the first metadata, and the second metadata in association with each other. A metadata matching method performed by a matching device, comprising:
A first metadata including information on an analysis purpose of the state of the observation target, from the first device on the providing side which provides the sensing data representing the state of the observation target measured by the sensor; Obtaining second metadata including attribute information of the sensor or sensing data related to the analysis purpose;
Third metadata including information on the purpose of the analysis from the second device on the user side that analyzes the state of the observation target based on the sensing data acquired from the first device by the matching device Process of acquiring
A process of the matching device comparing the first metadata and the third metadata to determine whether to provide the sensing data;
When the determining unit determines that the matching unit can provide, the first apparatus on the provider side is instructed to transmit sensing data related to the analysis purpose based on the second metadata. A matching method comprising the steps of   The sensor management program which functions a computer as each part which the sensor management apparatus in any one of Claim 1 thru | or 4 comprises.   The matching processing program which functions a computer as each part which the matching apparatus of Claim 5 or 6 comprises.