WO2018142598A1 - Système de gestion de réseau de capteurs et procédé de gestion de réseau de capteurs - Google Patents

Système de gestion de réseau de capteurs et procédé de gestion de réseau de capteurs Download PDF

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Publication number
WO2018142598A1
WO2018142598A1 PCT/JP2017/004109 JP2017004109W WO2018142598A1 WO 2018142598 A1 WO2018142598 A1 WO 2018142598A1 JP 2017004109 W JP2017004109 W JP 2017004109W WO 2018142598 A1 WO2018142598 A1 WO 2018142598A1
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sensor
application
information
data
physical sensor
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PCT/JP2017/004109
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English (en)
Japanese (ja)
Inventor
法子 中嶋
将幸 柿田
智也 太田
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株式会社日立製作所
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Priority to JP2018565212A priority Critical patent/JP6677828B2/ja
Priority to PCT/JP2017/004109 priority patent/WO2018142598A1/fr
Publication of WO2018142598A1 publication Critical patent/WO2018142598A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Definitions

  • the present invention relates to a sensor network management system and a sensor network management method.
  • IoT Internet of Things
  • the above-mentioned IoT is a sensor that has a sensing function and a communication function in various places and industrial facilities, and manages a large amount of sensor data obtained from the sensor as big data. It is what you use. Therefore, in order to collect, manage, and use sensor data seamlessly, the mainstream is a network of sensors installed in various locations, and centralized management of the sensor data on a cloud platform. It is coming.
  • sensor-side metadata acquisition means that acquires sensor-side metadata that is information related to a sensor that outputs sensing data, and application-side metadata that is information related to an application that provides a service using the sensing data.
  • App-side metadata acquisition means matching means for extracting the sensor capable of providing sensing data that satisfies the application requirements by matching the sensor-side metadata and the application-side metadata, and managing the sensors
  • a data flow control command generating device comprising: an instruction unit that transmits a data flow control command specifying the sensor extracted by the matching unit and the application to a sensor management device that performs the processing (Patent Document 1) See) It is draft.
  • an object of the present invention is to provide a technique that enables appropriate data interpolation for a virtual sensor linked to a physical sensor in the event of a failure of the physical sensor in the sensor network.
  • the sensor network management system of the present invention that solves the above problems includes mapping information that defines a relationship between a virtual sensor that uses a physical sensor and an application that uses the virtual sensor in the sensor network, and each of the physical sensor and the application.
  • mapping information that defines a relationship between a virtual sensor that uses a physical sensor and an application that uses the virtual sensor in the sensor network, and each of the physical sensor and the application.
  • a storage device that holds information, and an alternative physical sensor that identifies an application that uses a failed physical sensor that has failed via a virtual sensor based on the mapping information and satisfies data supplementation requirements that are defined in advance for the application
  • an arithmetic unit that executes a predetermined data complementing process related to the virtual sensor based on the alternative physical sensor, based on each information of the physical sensor and the application.
  • the sensor network management method of the present invention includes mapping information that defines a relationship between a virtual sensor that uses a physical sensor and an application that uses the virtual sensor in the sensor network, each piece of information on the physical sensor and the application, An information processing system including a storage device that stores a failure identifies an application that uses a failed physical sensor through a virtual sensor based on the mapping information, and satisfies data supplementation requirements defined in advance for the application An alternative physical sensor is specified based on each information of the physical sensor and the application, and a predetermined data complementing process related to the virtual sensor based on the alternative physical sensor is executed.
  • FIG. 1 is a diagram showing a configuration example of a sensor network 5 including a sensor network management system 1 of the present embodiment.
  • a sensor network management system 1 shown in FIG. 1 is a computer system for enabling appropriate data complementing for a virtual sensor 30 linked to a physical sensor 10 when a physical sensor 10 in the sensor network 5 fails.
  • the sensor network 5 in the present embodiment is not particularly limited, but an IoT system is assumed as an example.
  • the sensor network 5 that is an IoT system the virtual sensor 20 appropriately selects and processes the data of the physical sensor 10 installed in a person, a device, a station, etc., and provides the output data as the processing result to the application 30. It is a system to be used.
  • the physical sensor 10 that actually performs sensing, the sensor network management computer 100 that acquires output data of the physical sensor 10 via the network 400, and the data supplement requirement of the application 30 are defined as the sensor network management computer 100.
  • the application mediation management computer 200 that converts the information into information that can be understood by the application management computer 300 that implements the application 30 is capable of data communication via the network 400.
  • the output data of one physical sensor 10 may be used by a plurality of applications 30 via one or a plurality of virtual sensors 20, respectively.
  • each output data of the plurality of physical sensors 10 may be used by one application 30 via one or a plurality of virtual sensors 20.
  • the sensor network management computer 100 virtualizes output data from a certain sensor, that is, a virtual sensor, by appropriately selecting, aggregating, or processing the output data of the physical sensor 10.
  • the sensor network management computer 100 provides the output data of the virtual sensor 20 to the application 30.
  • the application 30 can define and use a plurality of physical sensors 10 as one virtual sensor 20 according to the application.
  • One virtual sensor 20 can also be used in a plurality of applications having similar uses.
  • the application manager 40 inputs application requirements on the application management computer 300 on which the application 30 operates.
  • the application mediation management computer 200 appropriately converts the application requirement and notifies the sensor network management computer 100 of it.
  • the application management computer 300 also plays a role of converting information received from the sensor network management computer 100 for the application manager 40.
  • the application manager 40 described above is a person who has the authority to determine the requirements of the application 30 and may be a developer of the application 30 or a provider of the application 30.
  • FIG. 2 is a diagram illustrating a configuration example of the sensor network management computer 100 according to the present embodiment.
  • the sensor network management computer 100 combines the meta information of the physical sensor 10 and the meta information of the application 30, provides the virtual sensor 20 to the application 30, and provides an appropriate provision from an appropriate provider. Data flow control is performed so that data is distributed to the destination.
  • the sensor network management computer 100 includes a management communication interface 110, an input interface 120, an output interface 130, a magnetic storage device 160, a data input / output cache memory 170, an arithmetic device 180, and a program memory 1000, and a communication bus 190. It is the structure mutually connected through this. That is, the hardware configuration of the sensor network management computer 100 shown in this example can be realized by a general-purpose computer (PC).
  • PC general-purpose computer
  • the management communication interface 110 is an interface for inputting and outputting appropriate information.
  • the input interface 120 is, for example, a keyboard or a mouse for an operator to input information.
  • the output interface 130 is, for example, a general-purpose display for outputting information to the operator.
  • the magnetic storage device 160 is a storage device that stores basic software such as an operating system and applications.
  • the data input / output cache memory 170 is a storage device that accumulates frequently used data and realizes high processing speed.
  • the arithmetic device 180 is a CPU that performs various calculations.
  • the program memory 1000 is a storage space that stores programs necessary for the operation of the management computer 100.
  • program memory 1000 is a memory space implemented by a magnetic storage device or a volatile semiconductor memory. This program memory 1000 is used for the purpose of holding basic programs and information necessary for the operation of the sensor network management computer 100.
  • control program and control information stored in the program memory 1000 will be described. Details of the control information, that is, physical sensor meta information 1001, application meta information 1002, physical virtual mapping information 1003, physical sensor operation information 1004, and missing data complementing method management information 1005 will be described later.
  • the path control program 1010 the physical virtual sensor matching program 1011, the physical sensor monitoring program 1012, the missing data complementing method switching program 1013, the data complementing program 1014, the alternative sensor search program 1015, the complementing value calculation program 1016 and a sensor information management program 1017 are included.
  • the path control program 1010 generates a data flow control command for distributing sensing data from the physical sensor 10 from an appropriate provider to an appropriate provider managed by the physical virtual mapping information 1003, and the physical sensor 10. Or it is a program transmitted to the predetermined management apparatus which manages it.
  • the physical virtual sensor matching program 1011 is a program that manages the correspondence between the physical sensor 10 and the virtual sensor 20 in the physical virtual mapping information 1003.
  • the physical sensor monitoring program 1012 is a program that monitors the physical sensor 10 and detects an operating state such as a failure or re-operation due to replacement.
  • the missing data complementing method switching program 1013 compares the data complementing requirements input from the application mediation management computer 200 or the application management computer 300 with the characteristics of the physical sensor 10 indicated by the physical sensor meta information 1001, and the physical sensor 10. This is a program for determining a data complementing method to be applied to the corresponding virtual sensor 20 and updating the missing data complementing method management information 1005 at the time of failure.
  • the data complementing program 1014 is a program that performs data complementing for the corresponding virtual sensor 20 based on the missing data complementing method management information 1005 when the physical sensor 10 fails.
  • the physical sensor 10 recorded in the data acquisition destination physical sensor identification information 10052 shown in the missing data supplement method management information 1005 is stopped (the operation state 10042 of the physical sensor operation information 1004 is In this case, the physical sensor 10 closest to the physical sensor 10 is updated as data acquisition destination physical sensor identification information 10052 based on the physical sensor meta information 1001.
  • the processing in this alternative sensor search program 1015 may be performed collectively when the missing data complementing method switching program 1013 updates the missing data complementing method management information 1005.
  • complement value calculation program 1016 is a program that calculates a predicted value by applying past output data of the physical sensor 10 to an appropriate algorithm when the physical sensor 10 fails, and supplements missing data with the predicted value. is there.
  • the sensor information management program 1017 is a program for updating the configuration information stored in the sensor network management computer 100.
  • FIG. 3 is a diagram illustrating a configuration example of the application mediation management computer 200 according to the present embodiment.
  • the application mediation management computer 200 is interposed between the sensor network management computer 100 and the application management computer 300, thereby converting the internal processing of the sensor network management computer 100 into information that can be understood by the application manager 40. Is. Conversely, it also plays a role of converting the input of the application manager 40 into a format that can be processed by the sensor network management computer 100.
  • Such a sensor network management computer 200 includes a management communication interface 210, an input interface 220, an output interface 230, a magnetic storage device 260, a data input / output cache memory 270, an arithmetic device 280, and a program memory 2000. 290 are connected to each other via 290. That is, the hardware configuration of the application mediation management computer 200 shown in this example can be realized by a general-purpose computer (PC).
  • PC general-purpose computer
  • the management communication interface 210 is an interface for inputting and outputting management information.
  • the input interface 220 is, for example, a keyboard or a mouse for an operator to input information.
  • the output interface 230 is, for example, a general-purpose display for outputting information to the operator.
  • the magnetic storage device 260 is a storage device for storing basic software such as an operating system and applications.
  • the data input / output cache memory 270 is a storage device for accumulating frequently used data and realizing high-speed processing.
  • the arithmetic unit 280 is a CPU that performs various calculations.
  • the program memory 200 is a storage space for accumulating programs necessary for the operation of the management computer 200.
  • the program memory 2000 described above is a memory space implemented by a magnetic storage device or a volatile semiconductor memory, and is used for the purpose of holding basic programs and information necessary for the operation of the management computer 200.
  • control program and control information stored in the program memory 2000 will be described.
  • details of the missing data supplement method management information 1005, the application requirement management information 3001, and the supplement requirement management information 2001, which are control information, will be described later.
  • the above-mentioned control programs include a missing data complementing method management program 2010 and an application requirement mediation management program 2011.
  • the missing data complementing method management program 2010 is a program for updating the complementing requirement management information 2001 based on the complementing requirements of the application 30 input by the application administrator 40.
  • the application requirement mediation management program 2011 is a program that converts the information on complementary requirements received from the application management computer 300 into a form that can be processed by the sensor network management computer 100.
  • the application requirement mediation management program 2011 is a program that converts update information from the sensor network management computer 100 into an application viewpoint representation and notifies the application management computer 300 of the update information.
  • FIG. 4 is a diagram illustrating a configuration example of the application management computer 300 according to the present embodiment.
  • the application management computer 300 manages supplementary requirements for the application 30 that operates using the output data of the physical sensor 10.
  • the application management computer 300 may be a server on which the application itself operates, or may be a computer different from the server on which the application is operating as a management computer.
  • the supplementary requirement for the application 30 is input by the application manager 40.
  • the application management computer 300 includes a management communication interface 310, an input interface 320, an output interface 330, a magnetic storage device 360, a data input / output cache memory 370, an arithmetic device 380, and a program memory 3000, and a communication bus 390.
  • a management communication interface 310 an input interface 320, an output interface 330, a magnetic storage device 360, a data input / output cache memory 370, an arithmetic device 380, and a program memory 3000, and a communication bus 390.
  • PC general purpose computer
  • the management communication interface 310 is an interface for inputting / outputting management information.
  • the input interface 320 is, for example, a keyboard or a mouse for an operator to input information.
  • the output interface 330 is, for example, a general-purpose display for outputting information to the operator.
  • the magnetic storage device 360 is a storage device that stores basic software such as an operating system and applications.
  • the data input / output cache memory 370 is a storage device for accumulating frequently used data and realizing high-speed processing.
  • the arithmetic unit 380 is a CPU that performs various calculations.
  • the program memory 3000 is a storage space that stores programs necessary for the operation of the management computer 300.
  • the program memory 3000 is a memory space implemented by a magnetic storage device or a volatile semiconductor memory, and is used for the purpose of holding basic programs and information necessary for the operation of the management computer 300.
  • control program and control information stored in the program memory 3000 will be described. Details of the application requirement management information 3001 and the application meta information 1002 that are control information will be described later.
  • the above-described control program includes an application requirement management program 3010.
  • the application requirement management program 3010 is a program that receives an input of a complementary requirement from the application manager 40 and updates the complementary requirement to the application requirement management information 3001.
  • the program notifies the application manager 40 by displaying an alert on the application requirement input screen.
  • 5A and 5B show a configuration example of physical sensor meta information 1001 stored in the sensor network management computer 100 according to this embodiment.
  • the physical sensor meta information 1001 manages the installation location and usage of the physical sensor 10.
  • the physical sensor meta information 1001 is updated when the physical sensor 10 is newly installed.
  • the meta information 1001a (FIG. 5A) of the physical sensor 10 itself and the detailed information 1001b (FIG. 5B) of an attribute of one item of the physical sensor 10 are shown together.
  • the detailed information 1001b described above may be included in the meta information 1001a.
  • the detailed information 1001b may be stored in an external device of the sensor network management computer 100 and referred to by the sensor network management computer 100 as necessary.
  • the identification information of the physical sensor 10 managed by the sensor network management computer 100 is registered in the physical sensor identification information 1001a1. Further, the installation location 1001a2, the usage 1001a3, and the data type 1001a4 to be handled regarding the physical sensor 10 are also managed by the meta information 1001a. In addition, the price of sensing data of each physical sensor 10, that is, the price of output data may be managed by the meta information 1001a.
  • the information on the installation location 1001a2 is composed of information of type 1001a5, installation location identification information 1001a6, and position information 1001a7.
  • the type 1001a5 attributes of installation targets such as “person”, “personal home”, “turbine” and the like are recorded.
  • information for identifying the type 1001a5 is recorded in the installation location identification information 1001a6. For example, “user A”, “user B”, and the like are recorded as information for identifying a person.
  • the position information 1001a7 is information indicating a position where the physical sensor 10 is installed.
  • the position information 1001a7 may be a longitude or latitude value or an address.
  • the usage 1001a3 is a value indicating the data usage usage of the physical sensor 10. For example, “commercial use” and “analysis use” are recorded in the use 1001a3.
  • the type of output data in the physical sensor 10 is recorded.
  • the output data itself output from the physical sensor 10 may be recorded, or the data format may be recorded.
  • the detailed information 1001b shown in FIG. 5B shows details of one item of the physical sensor meta information 1001a described above.
  • the information is a collection of various attributes of the user whose identification information is recorded in the wearer identification information 1001b1.
  • This attribute is information such as age 1001b2, gender 1001b3, and residence 1001b4.
  • each user's preference, purchase history of a predetermined product, and the like may be managed.
  • FIG. 6 shows a configuration example of the application meta information 1002 stored in the sensor network management computer 100 according to this embodiment.
  • the application meta information 1002 manages sensor data required by the application 30, that is, information on output data of the virtual sensor 20.
  • the identification information of the application 30 that uses the output data of the physical sensor 30 via the virtual sensor 20 is registered in the application identification information 10021.
  • the application name 10022 of the application 30 and the sensor information 10023 required by the application 30 are managed in association with the application identification information 10021.
  • the application name 10022 records the name of the application such as “generator monitoring application”.
  • the sensor information 10027 includes information on an installation location 10024, an application 10025, and a data type 10026. In these pieces of information, contents corresponding to the type 1001a5, the usage 1001a3, and the data type 1001a4 of the physical sensor meta information 1001a are recorded.
  • FIG. 7 shows a configuration example of the physical virtual mapping information 1003 stored in the sensor network management computer 100 of the present embodiment.
  • the physical virtual mapping information 1003 is information for managing the correspondence between the physical sensor 10 and the virtual sensor 20 and the allocation status of the virtual sensor 20 to the application 30.
  • the application identification information 10031 contains the identification information of the application 30. Further, identification information of the virtual sensor 20 assigned to the application 30 is recorded in the virtual sensor identification information 10032. In addition, information of the physical sensor 10 assigned to the virtual sensor 20 is recorded in the physical sensor information 10033.
  • the physical sensor information 10033 includes physical sensor identification information 10034 and an operation form 10033.
  • the operation form 1003 indicates “ “Normal operation” is recorded.
  • an alternative physical sensor 10 is assigned to the application 30 due to a failure of the originally assigned physical sensor 10 or the like, “alternative operation” is recorded in the operation mode 10033.
  • FIG. 8 shows a configuration example of physical sensor operation information 1004 stored in the sensor network management computer 100.
  • the physical sensor operation information 1004 is a table for managing the operation information of the physical sensor 10.
  • physical sensor identification information 10041 contains identification information of the physical sensor 10 managed by the sensor network management computer 100.
  • information on the operation state 10042 of the physical sensor 10, scheduled replacement date 10043, and replacement priority 10044 is recorded.
  • operation is recorded when the physical sensor 10 is operating, and “stop” is recorded when it is stopped due to a failure or the like.
  • the scheduled replacement date 10043 the scheduled replacement date of the failed physical sensor 10 is recorded. Note that, when performing periodic replacement, the scheduled replacement date is recorded even when the operating state 10042 is “operating”.
  • the exchange priority 10044 records the exchange priority. For example, when the number of physical sensors 10 to be replaced at a time is limited due to maintenance man-hours or the like, the sensor with the higher priority is replaced. Such replacement priority may be determined by, for example, the characteristics of the application 30 associated with the physical sensor 10.
  • the priority 10044 may be recorded as “high”.
  • FIG. 9 shows a configuration example of the missing data interpolation method management information 1005 stored in the sensor network management computer 100 of the present embodiment.
  • This missing data complementing method management information 1005 is information for managing the data complementing method when the physical sensor 10 corresponding to the virtual sensor 20 fails in each virtual sensor 20. Since the data complementing method varies depending on the requirements of the application 30, the complementing method may be different even for the same physical sensor 10.
  • the virtual sensor 20 in which the identification information is recorded in the virtual sensor identification information 10051 is associated with the physical sensor 10 in which the identification information is recorded in the physical sensor identification information 10052.
  • the physical sensor 10 recorded here is obtained by the physical virtual matching program 1011 of the sensor network management computer 100 collating the physical sensor meta information 1011 and the application meta information 1002 and assigning the physical sensor 10 to the application 30. is there.
  • the physical sensor 10 specified here is the most appropriate physical sensor 10 managed by the network management computer 100.
  • a complementing method when the sensor data cannot be acquired due to a failure of the physical sensor 10 is recorded in the data complementing method 10053.
  • the data complementing method 10053 includes information of a method 10054, alternative physical sensor identification information 10055, complementing data 10056, and a complementing value calculation method 10057.
  • identification information of the alternative physical sensor 10 used when “complemented with other sensors” is recorded in the method 10054 is recorded.
  • supplement data 10056 what data is used is recorded when “complement with the same sensor” and “complement with another sensor” are recorded in the method 10054. For example, values such as “data for the past month” and “real time data” are recorded.
  • the complementary value calculation method 10057 when the data is processed, the calculation method is recorded, and when the data is replaced as it is, “substitution” is recorded.
  • FIG. 10 shows a configuration example of the complementary requirement management information 2001 stored in the application mediation computer 200 of this embodiment.
  • This complementary requirement management information 2001 is created based on application requirement management information 3001 described later. However, if there is a blank in the application requirement management information 3001, the application mediation computer 200 complements the application 30 with reference to the characteristics of the application 30 and the configuration of the physical sensor 10, and determines a complementing method for each application 30.
  • complementary requirement management information 2001 information on the application type 20012, virtual sensor identification information 20013, and data supplement requirement 20014 corresponding to the application 30 whose identification information is recorded in the application identification information 20011 is managed.
  • the data supplement requirement 201414 includes a method 20015, alternative data 20061, and a supplement value calculation method 20017.
  • the method 20015 when the data supplement from the past output data of the failed physical sensor 10 is optimal, “complement with the same sensor” is recorded.
  • Examples of the application 30 recorded in this way include those that use personal data for commercial purposes, and those that analyze the long-term operating status of equipment.
  • Examples of the application 30 recorded in this way include an application analyzing a user in units of a group and an application that measures air pollution and temperature.
  • Examples of applications 30 recorded in this way include medical applications that require urgency, and those that monitor devices such as generators that are not allowed to stop. In such an example, since prediction from past data and substitution with other physical sensors cannot be performed, it is necessary to replace the failed physical sensor 10 with priority. Further, for example, in the case of medical use, when data cannot be acquired, other measures may be taken such as a doctor going to the user without waiting for replacement of the failed physical sensor 10.
  • acquisition data and alternative sensor requirements are recorded.
  • data requirements such as “data for the past month” are recorded in the alternative data 20061.
  • the alternative data 20061 includes “sensor data of users with similar attributes” and “sensor data of physical sensors within 200 meters from existing physical sensors”. The requirements of the alternative physical sensor 10 are recorded.
  • the complementary value calculation method 20017 when data is processed, the calculation method is recorded, and when the data is replaced as it is, “substitution” is recorded.
  • FIG. 11 shows a configuration example of the application requirement management information 3001 stored in the application management computer 300 of this embodiment.
  • This application requirement management information 3001 manages requirements related to a complementary method for the application 30.
  • Such application requirement management information 3001 is configured based on requirements input by the application manager 40 from an application requirement input screen described later.
  • the application manager 40 is not always familiar with the data supplement method. Since it is recorded within a range that the application manager 40 is aware of, there may be a blank.
  • the missing data supplement requirement 30014 includes a method 30017, alternative data 30018, and a complement value calculation method 20019.
  • the urgency when data cannot be acquired is recorded in the urgency 30015 when data cannot be acquired, and “high” is recorded when the importance of the application is high.
  • the update date 30016 the date and time when the requirement input from the application requirement input screen is updated is recorded.
  • the application requirement mediation management program 2010 of the application mediation management computer 200 which shows an example of generating the complement requirement management information 2001 from the application requirement management information 3001, is blank when the data of the complement requirement management information 2001 should exist. Make up for it.
  • the missing data supplement requirement 30014 of “AP2” in the application requirement management information 3001 is recorded as “Null”, but “analysis usage” is recorded in the usage usage 30013.
  • “AP3” it is determined that “complementation with other sensors” is possible.
  • the alternative data and the complementary value calculation method are also supplemented, and data of the data supplement requirement 201414 method, alternative data 20061, and complementary value calculation method 20017 of the supplement requirement management information 2001 are created.
  • FIG. 12 is a diagram showing a flow example 1 of the sensor network management method in the present embodiment, and more specifically, is an example of a flowchart corresponding to the setting procedure of the data complementing method.
  • This flow is executed for each application 30. For example, when a new application 30 is released to the application management computer 300 or even when the application 30 is in operation, the flow changes according to a predetermined instruction from the application developer 40. Start.
  • the application developer 40 inputs application requirements from, for example, a screen 1300 as shown in FIG. 13, and the application requirement management program 3010 updates the application requirement management information 3001 based on the application requirements.
  • FIG. 13 shows an example of an application requirement input screen in the application management computer 300 of this embodiment.
  • the requirements for the application 30 are set for each application.
  • the application administrator 40 who operates the application management computer 300 uses the application name, usage, complement method when data is lost, data complement method, and emergency response when the data cannot be acquired. Enter the degree.
  • the screen 1300 in FIG. 13 shows an example of information input related to a new application 30, but an example in which information is input in other situations such as when editing information related to a registered application 30 can also be assumed.
  • the application mediation management computer 200 inquires about the requirement when a physical sensor fails (described later in FIG. 15), the previously input items are displayed in the input space.
  • the name of the application 30 is input as the application name.
  • the usage field the usage field of the corresponding application is input. This field may be a pull-down format, and the application administrator 40 may specify from the displayed items.
  • the complement method when data cannot be acquired is input as the complement method when data is missing. Since the complement method is fixed, this field may be a pull-down format.
  • the data complementing method may switch the display contents based on the method specified in the complementing method when data is missing. For example, when “data complement from other sensors” is input as a complement method when data is missing, items related to the data complement method are output to the data complement method.
  • the urgency level of response when data cannot be acquired is entered in the urgency level when data cannot be acquired.
  • the mechanism of the sensor network 5 (IoT system) shown in FIG. 1 is provided as a service
  • the price may be set according to the degree of urgency when data cannot be acquired. That is, the application 30 that has purchased a high-priced service is preferentially dealt with when data acquisition is impossible.
  • the application requirement input screen that is, the content input from the screen 1300 is reflected in the application requirement management information 3001.
  • the application requirement management program 3010 notifies the application mediation management computer 200 of the updated contents of the application requirements (step s101).
  • the application mediation management program 2011 of the application mediation management computer 200 receives the update of the application requirement from the application management computer 300 and updates the application requirement management information 3001 (FIG. 11) (step s102).
  • the missing data complementing method management program 2010 of the application mediation management computer 200 determines a complementing method for the application 30 based on the application requirements input by the application management computer 200, and updates the complementing requirement management information 2001 ( Step s103).
  • the above-mentioned missing data complementing method management program 2010 records the usage requirement 30013 and the emergency level 30015 when data cannot be acquired even if some information of the missing data supplementing requirement 30014 is blank in the application requirement management information 3001. Based on the missing information supplement requirement of the other application 30 having similar attributes, the data necessary for the data supplement requirement 200214 of the supplement requirement management information 2001 is supplemented from the obtained information.
  • the missing data complementing method management program 2010 designates the virtual sensor 20 of the updated virtual sensor identification information 20012 in the complementing requirement management information 2001, and designates the virtual sensor 20 and its data complementing requirement as a sensor network management computer. 100 is notified (step s104).
  • the alternative sensor search program 1015 of the sensor network management computer 100 that has received the notification from the application mediation management computer 200, if the complement method of the virtual sensor 20 is a requirement to be complemented by another physical sensor 10, the received requirement is The physical sensor 10 that satisfies and is in operation in the operation state 10042 of the physical sensor operation information 1004 is searched.
  • the alternative sensor search program 1015 refers to the physical sensor meta information 1001 and has the most similar characteristics to the physical sensors 10 currently associated with each other. A thing is selected (step s105).
  • the similarity of the physical sensor refers to the similarity of the installation location, application, and data type recorded in the physical sensor meta information 1001 and the similarity of the mounting destination indicated in the detailed information 1001b. If the application mediation management computer 200 designates “data with similar location information” or the like recorded in the substitute data 20061 of the supplementary requirement management information 2001, the selection is made according to the requirement.
  • the physical sensor 10 is set as the alternative physical sensor 10. Note that processing for updating physical sensor information after replacement of the physical sensor 10 will be described later with reference to FIG.
  • the alternative sensor search program 1015 may set the replacement priority level 10043 of the physical sensor operation information 1004 of the physical sensor 10 to “high” and replace it preferentially when the physical sensor 10 fails.
  • the missing data complementing method switching program 1013 of the sensor network management computer 100 performs missing data compensation based on the update information notified from the application mediation management computer 100 and the information of the alternative physical sensor 10 retrieved in step s105.
  • the system management information 1005 is updated (step s106).
  • the missing data complementing method switching program 1012 transmits the update contents of the missing data complementing method management information 1005 to the application mediation management computer 200 (step s107).
  • the missing data complementing method management program 2010 of the application mediation management computer 200 updates the missing data complementing method management program 1005 based on the update information received from the sensor network management computer 100 (step s108).
  • the application requirement mediation management program 2011 notifies the application management computer 300 that the input application requirement has been reflected in the complementary method of the physical sensor 10 (step s109), and ends the process.
  • FIG. 14 shows an example of a flowchart expressing the update of information related to the physical sensor in the present embodiment. This flow is assumed to be performed when the physical sensor monitoring program 1011 of the sensor network management computer 100 detects a new addition or restoration of the physical sensor 10. Moreover, you may perform regularly irrespective of it.
  • the physical sensor monitoring program 1012 of the sensor network management computer 100 detects restoration or new addition of the physical sensor 10 (step s201). This detection is performed, for example, by making an inquiry about the life / death status toward each physical sensor 10 of the sensor network 5 at predetermined intervals.
  • the sensor information management program 1017 designates the physical sensor 10 that has detected the change in the physical sensor operation information 1004, and updates the change content (step s202).
  • the sensor information management program 1017 acquires the meta information of the physical sensor 10 and updates the physical sensor meta information 1001.
  • the method 10054 of the data complementing method 10053 is recorded as “complemented with other sensors” in the missing data complementing method management information 1005, and the alternative physical sensor identification information 10055 is “ The virtual sensor 20 that is “Null” is searched (step s203).
  • the missing data complementing method switching program 1013 repeats the following for all virtual sensors 20 output by the above search (step s204).
  • the missing data complementing method switching program 1013 designates the virtual sensor 20 and requests the application intermediary management computer 200 to transmit the complementing requirements (step s205).
  • the application requirement mediation management program 2011 of the application mediation management computer 200 receives the request for the supplemental requirement transmission described above, refers to the supplementary requirement management information 2001, and reads the requirement recorded in the substitute data 20061 of the virtual sensor 20. And transmitted to the sensor network management computer 200 (step s206).
  • the missing data supplement method switching program 1013 of the sensor network management computer 100 receives the supplement requirement of the virtual sensor 20, refers to the physical sensor meta information 1001a and the detailed information 1001b, and is restored or added in the current physical sensor 10. Is determined to meet the requirements received from the application mediation management computer 200 (step s207).
  • the missing data supplement method switching program 1013 uses the identification information of the physical sensor 10 as the alternative physical sensor identification corresponding to the corresponding virtual sensor 20. Information is entered into information 10053 (step s208).
  • step s207: No the missing data complementing method switching program 1013 transitions to step s209.
  • the missing data complementing method management program 1013 notifies the application mediation management computer 200 of update information of the missing data complementing method management information 1005 (step s210).
  • missing data complementing method management program 2010 of the application mediation management computer 200 updates the missing data complementing method management information 1005 (step s211), and ends the processing.
  • step s205 may be performed before the repetitive processing in step s204. Further, the application intermediary management computer 200 may be inquired together with the supplementary requirements of the virtual sensor 20 searched in step s203.
  • FIG. 15 shows a flow of complementing missing data when the physical sensor 10 fails in the present embodiment.
  • the physical sensor monitoring program 1012 of the sensor network management computer 100 detects a failure of the physical sensor 10 (step s301).
  • the physical sensor monitoring program 1012 that has detected the failure records “stopped” in the operation state 10041 of the physical sensor 10 in the physical sensor operation information 1004.
  • the physical virtual sensor matching program 1011 of the sensor network management computer 100 refers to the physical virtual mapping information 1003, specifies the application 30 that uses the physical sensor 10, and acquires the sensor data in the application mediation management computer 200. It is notified that the state is disabled (step s302).
  • the application requirement mediation management program 2011 of the application mediation management computer 200 receives the sensor data non-acquisition notification, and determines whether a response to the physical sensor failure needs to be confirmed with the app administrator 40 by using a predetermined algorithm (step) s303).
  • the history of the update date 30015 of the application requirement management information 3001 is referred to.
  • the sensitivity of the application administrator 40 to data supplementation is high, and at that moment There is a possibility that the data supplement requirement has been changed, and it can be assumed that it is determined that notification to the application management computer 300 is necessary.
  • the application administrator 40 may determine the data complementing method on the spot. For example, it may be determined that notification to 300 is necessary.
  • step s304 when confirmation with the application administrator 40 is necessary (step s304: Yes), the application requirement mediation management program 2011 changes to the data supplement requirement of the application 30 for the application management computer 300. A confirmation request for whether there is any is made (step s305).
  • step s304 when it is determined that confirmation with the application administrator 40 is unnecessary (step s304: No), the application requirement mediation management program 2011 shifts the process to step s308.
  • the application requirement management program 3010 of the application management computer 300 receives the confirmation request described above, displays an alert for confirmation request on a predetermined screen for the application administrator 40, for example, and inputs the requirement input to the application administrator 40. Notify you to do it.
  • the application administrator 40 updates the data supplement requirement on the input screen shown in FIG.
  • the application requirement management program 3010 manages the information input by the application administrator 40 as application requirement management information 3001, and notifies the update information to the application mediation management computer 200 (step s306).
  • the application requirement mediation management program 2011 of the application mediation management computer 200 receives the update information from the application management computer 300 and thereby updates the application requirement management information 3001 (step s307). Further, the application requirement mediation management program 2011 generates complementary requirement management information 2001 based on the updated application requirement management information 3001.
  • the missing data supplement method management program 2010 of the application mediation management computer 200 notifies the sensor network management computer 100 of the supplement method of the application 30 (step s308).
  • the missing data complementing method management program 2010 searches the substitute physical sensor identification information 1055 of the missing data complementing method management information 1005 for the failed physical sensor 10, and the physical sensor 10 is the substitute sensor. Notifies the sensor network management computer 100 together with the corresponding virtual sensor 20 and the requirement of the alternative data 20061 of the complementary requirement management information 2001.
  • step s304 when it determines with No by the above-mentioned step s304, ie, when confirmation to the application manager 40 is unnecessary, since there is no update from the application management computer 300, it is managed by the application requirement mediation management program 2011. Information on the current supplement method is transmitted.
  • the missing data complementing method switching program 1013 of the sensor network management computer 100 receives the complementing method from the application mediation management computer 200, and thereby updates the missing data complementing method management information 1005 (step s309).
  • the data supplement program 1014 performs data supplement based on the missing data supplement method management information 1005 (step s310).
  • the alternative sensor search program 1015 searches for the alternative sensor.
  • the complement value calculation program 1016 calculates the predicted value by the method recorded in the complement value calculation method 10057.
  • the sensor information management program 1017 uses the physical sensor 10 that has failed in the physical sensor identification information 10034 of the physical virtual mapping information 1003. And the identification information of the replaced physical sensor 10 is overwritten (step s311).
  • the alternative sensor search program 1015 uses the requirement information in the alternative physical sensor identification information 1055 of the missing data interpolation method management information 1005 based on the virtual sensor identification information and the requirement notified from the application mediation management computer 200 in step s308. And the physical sensor 10 whose operation state 10042 of the physical sensor operation information 1004 is “in operation” is searched and overwritten with the information of the physical sensor 10.
  • the missing data complementing method management program 1013 notifies the application mediation management computer 200 of update information of the missing data complementing method management information 1005 (step s312).
  • the missing data complementing method management program 2010 of the application mediation management computer 200 updates the missing data complementing method management information 1005 (step s313) and ends the processing.
  • step s305 when an inquiry is made to the application management computer 300 in step s305 and no response is received after a certain period of time, data cannot be provided to the application 30 during that period. In that case, the application mediation management computer 200 may cause the process to transition to step s308.
  • FIG. 16 shows a configuration example of the application management computer 300 in the second embodiment.
  • the application management computer 300 includes the missing data supplement method management program 2010, the application requirement mediation management program 2011, the supplement requirement management information 2001, and the data stored in the app mediation management computer 200 in the configuration of the first embodiment. Missing data complementing method management information 1005 is held.
  • the application management computer 300 converts the application requirement management information 3001 input from the application administrator 40 into the complementary requirement management information 2001 that manages an appropriate data complementing method at the time of failure of the physical sensor 10 for each application 30. Can be converted.
  • the application administrator 50 can appropriately input the application requirement management information 3001.
  • the application requirement mediation management program 2011 and the complementary requirement management information 2001 are not essential.
  • the sensor network management computer 100 can search for the alternative physical sensor 10 based on the application requirement management information 3001.
  • FIG. 17 shows a flow example corresponding to the missing data complementing procedure when the physical sensor 10 fails in the second embodiment.
  • the physical sensor monitoring program 1012 of the sensor network management computer 100 detects a failure of the physical sensor 10 (step s401).
  • the physical sensor monitoring program 1012 records “stop” in the operation state 10040 of the physical sensor 10 in the physical sensor operation information 1004.
  • the physical virtual sensor matching program 1011 of the sensor network management computer 100 refers to the physical virtual mapping information 1003, specifies the application 30 that uses the physical sensor 10, and acquires the sensor data to the application management computer 300. It is notified that the state is disabled (step s402).
  • the application requirement management program 3010 of the application management computer 300 displays a confirmation request alert on a predetermined screen for the application administrator 40, for example, and notifies the application administrator 40 to input supplementary requirements.
  • the application administrator 40 updates the supplemental requirement on the screen shown in FIG. 13 when the supplemental requirement needs to be changed.
  • the application requirement management program 3010 manages the supplementary requirement information input on this screen as application requirement management information 3001, and notifies the sensor network management computer 100 of the data supplementation requirement corresponding to the application 30 (step s403). .
  • the application mediation management program 2011 of the application management computer 300 when there is a blank in the data supplement requirement input from the application administrator 40, the application mediation management program 2011 of the application management computer 300 generates the supplement requirement management information 2001 by supplementing the necessary data in the blank portion.
  • the method described in connection with step s103 of the flow example 1 may be similarly adopted.
  • the missing data complementing method switching program 1013 of the sensor network management computer 100 receives the complementing requirement from the application management computer 300, and thereby updates the missing data complementing method management information 1005 (step s404).
  • the data supplement program 1014 performs data supplement based on the missing data supplement method management information 1005 (step s405).
  • the alternative sensor search program 1015 searches for the alternative sensor.
  • the complement value calculation program 1016 calculates the predicted value by the method recorded in the complement value calculation method 10057.
  • the sensor information management program 1017 searches the physical sensor identification information 10034 of the physical virtual mapping information 1003 for the failed physical sensor 10. Then, the identification information of the replaced physical sensor 10 is overwritten (step s406).
  • the alternative sensor search program 1015 satisfies the requirements in the alternative physical sensor identification information 1055 of the missing data supplement method management information 1005 based on the application and its requirements notified from the application management computer 300 in step s403.
  • the physical sensor 10 in which the operation state 10042 of the physical sensor operation information 1004 is “in operation” is retrieved and overwritten with the physical sensor 10.
  • the missing data complementing method management program 1013 notifies the application management computer 100 of update information of the missing data complementing method management information 1005 (step s407).
  • the missing data complementing method management program 2010 of the application management computer 300 updates the missing data complementing method management information 1005 (step s408) and ends the process.
  • a physical sensor when a physical sensor fails, it is possible to perform appropriate data complementing according to application requirements for a virtual sensor associated with the physical sensor.
  • the failed physical sensor can be replaced efficiently.
  • the arithmetic device registers the alternative physical sensor in the mapping information as a virtual sensor usage target used by a corresponding application in the data complementing process. It is good.
  • the virtual sensor can obtain output data from each physical sensor as an input, and can provide an appropriate output to the application.
  • mapping information the virtual sensor can obtain output data from each physical sensor as an input, and can provide an appropriate output to the application.
  • the storage device further holds information related to the operation status of each physical sensor, and the arithmetic device, when specifying the alternative physical sensor, Based on the information and the information on the operation status, the physical sensor installation location and the installation target at least one of the attributes coincides with the failed physical sensor, and the active physical sensor is specified as an alternative physical sensor. There may be.
  • the arithmetic device when the data supplement requirement defines a supplement method using past output data in the fault physical sensor,
  • the alternative data may be calculated by applying the output data to a predetermined algorithm, and a predetermined data complementing process is executed for the virtual sensor using the alternative data.
  • the arithmetic device performs the data supplement processing when the data supplement requirement specifies that data supplement is impossible or when the alternative physical sensor cannot be specified.
  • the alternative physical sensor may be newly specified in response to the restoration of the failed physical sensor in the sensor network or the addition of a new physical sensor having the same specifications as the failed physical sensor, without executing.
  • the fault physical sensor since the fault physical sensor has a special specification and there is no substitute in the first place, it corresponds to the situation where data supplement is not desired, avoids unnecessary processing, and responds to recovery of the fault physical sensor, etc. Quick response. As a result, in the event of a physical sensor failure in the sensor network, appropriate data supplementation for the virtual sensor associated with the physical sensor can be performed more efficiently.
  • the computing device when the computing device identifies an application that uses a failed physical sensor that has failed via a virtual sensor, the virtual sensor becomes unusable for the application. It is also possible to further execute a process of notifying that.
  • the application side avoids the predetermined based on the output data from the virtual sensor in advance, and the sensor network management system side also performs unnecessary data conversion based on the association between the physical sensor and the virtual sensor. It can be avoided. As a result, in the event of a physical sensor failure in the sensor network, appropriate data supplementation for the virtual sensor associated with the physical sensor can be performed more efficiently.
  • the arithmetic device transmits a screen for accepting designation of the data supplementation requirement to the management terminal of the application, and acquires data supplementation requirement information from the management terminal. It is also possible to further execute the processing.
  • the information processing system may register the alternative physical sensor in the mapping information as a virtual sensor usage target used by a corresponding application in the data complementing process. Good.
  • the information processing system further holds information on the operation status of each physical sensor in the storage device, and when specifying the alternative physical sensor, the information on the physical sensor and Based on the operation status information, at least one of the attributes of the physical sensor installation location and the installation target may coincide with the failed physical sensor, and the active physical sensor may be identified as an alternative physical sensor.
  • the information supplementation system defines a complementation method using past output data in the faulty physical sensor
  • the data complementation requirement of the faulty physical sensor Alternative data may be calculated by applying past output data to a predetermined algorithm, and a predetermined data complementing process may be executed for the corresponding virtual sensor using the alternative data.
  • the data supplement processing The replacement physical sensor may be specified again according to the restoration of the failed physical sensor in the sensor network or the addition of a new physical sensor having the same specifications as the failed physical sensor.
  • the information processing system identifies an application that uses a faulty physical sensor in which a failure has occurred via a virtual sensor
  • the virtual sensor is unusable for the application. It is also possible to further execute a process of notifying that it has become.
  • the information processing system transmits a screen for accepting designation of the data supplementation requirement to the management terminal of the application, and the data supplementation requirement information is transmitted from the management terminal.
  • the acquisition process may be further executed.

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Abstract

Le problème décrit par la présente invention est de permettre de réaliser une interpolation de données appropriée par rapport à un capteur virtuel lié à un capteur physique dans un réseau de capteurs, lorsque le capteur physique est endommagé. La solution selon l'invention porte sur un système de gestion de réseau de capteurs (1) qui est configuré pour comprendre : un dispositif de stockage (1000) qui contient des informations de mappage (1003) spécifiant la relation entre, respectivement, un capteur virtuel (20) qui utilise un capteur physique (10) et une application (30) qui utilise le capteur virtuel (20), et des informations de capteur physique et d'application (1001, 1002) ; et un dispositif de calcul (180) qui identifie, sur la base des informations de mappage (1003), une application utilisant un capteur physique endommagé par l'intermédiaire d'un capteur virtuel, qui identifie, sur la base des informations (1001, 1002), un capteur physique de remplacement qui satisfait une condition d'interpolation de données prescrite (1005) relative à l'application, et qui effectue un traitement d'interpolation de données prédéterminé par rapport au capteur virtuel, sur la base du capteur physique de remplacement.
PCT/JP2017/004109 2017-02-03 2017-02-03 Système de gestion de réseau de capteurs et procédé de gestion de réseau de capteurs WO2018142598A1 (fr)

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