JP5965791B2 - Information management system - Google Patents

Description

The present invention collects and manages operation information of devices such as electric vehicles (EVs) and provides the information to the service provider so that the service provider provides the service to the user of the device. It is related with the system which enables.

The CEMS (Community Energy Management System), which effectively uses renewable energy by adjusting local energy supply and demand, holds operation information collected from equipment owned by local customers. In addition to using this operation information for energy supply and demand, by providing third-party service providers other than energy suppliers and consumers, service providers provide customers with services that use operation information. It is also considered to do. However, device operation information is information related to the privacy of consumers who are users of the device, such as power on / off and EV travel position. Only a service provider contracted by a consumer can refer to the operation information of the customer's equipment from the CEMS, and a mechanism is required for the CEMS so that the service provider who is not contracted cannot refer to it. As described above, there is a data access control technique as a mechanism for filtering data to be provided in accordance with a predetermined access authority when other services refer to the stored data. For example, in the technology described in Patent Document 1, by defining to whom the creator of information is to disclose the information, whether or not there is a reference authority at the time of access by a reference person such as a service according to the definition Is determined for each public information provided to the service. Thereby, access control to data is realized.

JP 2002-269092 A

  In CEMS, in addition to the case where all the operation information of the owned device can be referred to for the contracted service, the operation information can be referred to in certain situations depending on the status of the device represented by the operation information from the viewpoint of privacy protection. It is assumed that it is possible to refer to it otherwise. For example, in the case of EV, when contracting with a navigation service to a charging station as a service, there is a case where the SOC (State of Charge) of the EV battery is reduced and only operation information when charging is required can be referred to . In addition, when contracting with an advertisement information distribution service such as a local store as a service, only when the EV user is traveling on an unknown land or a destination tourist destination, the operation information is provided to the service by providing the service to the service. There may be a case where advertisement information of a store suitable for a location is distributed. In these cases, the conditions under which the service can refer to the operation information vary depending on the SOC value of the EV and the range of the travel position.

  In the technology described in Patent Document 1, when an access request is received from a service, the policy defined by the information creator is referred to, and whether or not the policy condition is satisfied for each public information provided to the service To do. Information that can be set as a policy is fixed information such as the ID of the reference service. When this technology is applied to the above CEMS, it is not assumed that the range of operation information data items such as SOC and travel location is defined as accessibility conditions. It is only possible to refer to the operation information or not to reference any operation information, and it is difficult to implement access control according to the status of the device.

Therefore, the first object of the present invention is to define access control conditions not only for data items whose values such as IDs are fixed, but also for time-series data items whose values change every moment, such as SOC and driving position. Thus, an object is to provide an information management system that can determine whether or not the information can be referred to the service according to the status of the device.
In addition, since the public information assumed in the technology described in Patent Document 1 is assumed to be attribute information of a member to join, the number of public information is considered to be about the number of members to join and not so much. However, in CEMS, especially when collecting EV operation information, the driving position changes instantaneously, such as during high-speed driving, so at least once every few minutes and once every few tens of seconds when trying to grasp the position accurately Information needs to be collected. In this case, the operation information stored in the CEMS may become enormous depending on the number of target EVs. When the service refers to the operation information, the operation information to be referred to, such as referring to the operation information for any day or day, or searching for the operation information corresponding to the specified condition from the past one year Become a large amount. Even in this case, if it is determined whether or not reference is possible for each piece of operation information compared to the access control definition, the processing time also becomes enormous.
Accordingly, a second object of the present invention is to provide an information management system capable of realizing determination of whether or not the operation information requested by the service can be referred to, that is, whether or not the content corresponds to the definition of the access control, with as few processes as possible. Is to provide.
Further, the definition of the access control condition is generated and defined based on the contents of the contract between the service and the EV user. As the number of services and EV users increases, the number of combinations increases. Therefore, definitions should be automatically generated based on the contract contents in order to simplify the work of information management system operators. In the automatic generation of this definition, it is required to automatically generate the information necessary for satisfying the service level contracted between the service and the user and the definition of an appropriate providing means. At the same time, since the contents of the service are various, the conversion process from the contract contents to the definition is not a fixed process, and versatility that can be converted into an appropriate definition corresponding to various contract contents is required.

  Accordingly, a third object of the present invention is to provide information that can be converted into definitions by general-purpose processing that can handle various service contents in the process of converting service and user contract contents into information management system definitions. To provide a management system. In the above description, a plurality of objects of the present invention have been described for easy understanding of the invention. However, it is not necessary to simultaneously achieve the plurality of objects. It suffices if one of the goals can be achieved.

  Further objects of the invention will become clear from the description of embodiments described later.

  The present invention relates to an information management device provided for each predetermined area including a plurality of infrastructure supply and demand devices, and operation information of the infrastructure supply and demand devices held by the information management device, with permission from the owner or user of the devices. An information management system including an information utilization device that refers to the information and provides a service utilizing the operation information to the owner or the user, and the information management device is transmitted from the device Whether the operation information is within the same operation range between the start and end of the operation based on the operation status of the device, which means that the operation information including time series information is accepted and the operation start and end of the device included in the operation information is included. If it is within the same operation period, the operation information within the same operation range in the past and the received operation information are compared with the value of the time series information included in the operation information, and the same earning is performed. The maximum value and the minimum value of the time series information within the period are calculated and retained as the period unit operation information, and if not within the same operation range, the maximum value is calculated from the time series information of the operation information received as a new operation range. Similarly, the minimum value is extracted and held as period-unit operation information, and the information management apparatus is configured to store the operation information of the information utilization apparatus and the device defined in the range of time-series information included in the operation information. When the reference permission condition is held, the operation information reference request from the information utilization apparatus is received, and the maximum value and the minimum value of the time series information held by the period unit operation information and the reference permission condition are defined When the range of the series information is compared, and if both the maximum value and the minimum value are included in the range as a result of the comparison, all the operation information included in the period can be referred to, and the range Wherein when the maximum value and the minimum value does not contain any, characterized in that the all operation information is referenced not included in the period.

  According to the present invention, it is possible to define whether or not a service can be referred to not only by fixed information such as an ID but also by time-series information such as a sensor measurement value. It becomes possible. In addition, the determination process can be reduced as compared with a method for determining whether or not all operation information corresponding to the reference request can be referred. In addition, the definition can be generated by general-purpose processing that does not depend on the contents of the service.

It is a block diagram which shows the whole structure of a server. It is an example of the operation information table which the operation information DB holds. It is an example of the period unit operation information table held in the operation information DB. It is an example of the access authority table for pulls which an access control definition DB holds. It is an example of a pull access condition table held in the access control definition DB. It is an example of the access authority table for pushes which access control definition DB holds. It is an example of the access condition table for pushes which access control definition DB holds. It is a processing sequence figure at the time of server definition conversion. It is an example of a contract information registration screen in the case of EV charge amount monitoring. It is an example of the data which the definition conversion dictionary file in the case of EV charge amount monitoring hold | maintains. It is an example of the data which a period definition file hold | maintains. It is an example of a contract information registration screen in the case of EV regional advertisement distribution (other than near home). It is an example of the data which the definition conversion dictionary file in the case of EV area advertisement distribution (except near home) holds. It is a processing sequence figure at the time of server operation information registration reception. It is a flowchart of a process of a push transmission determination program. It is a flowchart of a process of a period determination program. It is an example of the data which an operation information cache hold | maintains. It is a processing sequence figure at the time of the operation information reference reception of a server. It is a flowchart of a process of the access authority determination program.

  FIG. 1 shows a block diagram when the information management system of the present invention is applied to information management in a smart city. The server 1 in FIG. 1 is a server that manages information on devices such as the EV 2 in a certain area. A smart city is a next-generation city that combines the effective use of resources, the preservation of the global environment, and the convenience and comfort of citizens, such as adjusting the demand and supply of energy and water infrastructure using IT. Mean concept. The server 1 is a system that collects and holds operation information related to energy supply and demand in the city from equipment and facilities and provides the information to infrastructure applications such as energy supply and demand adjustment. In the present embodiment, EV is taken as an example of equipment / equipment. The EV 2 and the server 1 are connected directly via a network such as a carrier network such as M2M or via one or more EV management systems 3 operated by an EV manufacturer or the like. The server 1 receives operation information periodically transmitted from one or a plurality of EVs 2 and stores it in its own database (DB). In addition, the server 1 provides operation information to the infrastructure application 4, and also provides the operation information to the application 4 of a third-party service provider after obtaining permission from the user of the device or facility. The application 4 and the server 1 are also connected via the network, and the one or more applications 4 transmit an operation information reference request to the server 1 periodically or at some timing. The server 1 returns operation information that can be provided to the application 4 as a response. Alternatively, the operation information received from the EV 2 by the server 1 may be transmitted to the application 4 as it is. As will be described later, the server 1 is configured as a computer including at least a memory 11 as a storage unit used when performing arithmetic processing, and an arithmetic processing device that performs the arithmetic processing. The memory 11 is constituted by a RAM (Random Access Memory) or the like. Arithmetic processing is realized by an arithmetic processing device configured by a CPU (Central Processing Unit) 12 executing a program on the memory 11. The computer includes a network interface for communication.

  The EV 2 incorporates a CPU, memory, and other network interfaces as the in-vehicle terminal 21. The in-vehicle terminal of EV2 starts / stops operation, cumulative mileage, SOC indicating remaining charge, speed, operation mode, GPS driving position (latitude / longitude), etc. as operation information periodically from various devices that make up EV To collect. Furthermore, the in-vehicle terminal transmits the obtained operation information to the server or EV management system as appropriate.

  The driving mode is selected by the EV2 driver. There are two modes: "ECO mode" that consumes less power but has low driving power, and "DRIVE mode" that consumes much power but has high driving power. .

  These pieces of information are periodically transmitted to the server 1 or the EV management system 3. When the server 1 is installed separately for each region, the in-vehicle terminal 21 determines which server 1 should be transmitted based on the traveling position of the own vehicle, or the M2M server that manages M2M communication from the EV 2 The transmission destination server 1 is determined based on the base station that has received the information, or the EV management system 3 to be described later determines based on the travel position of each EV 2 to transmit to the server 1 in an appropriate region. To do. Although the transmission interval depends on the bandwidth of the network, it is assumed that it is at least once every few minutes and once every tens of seconds if there is enough bandwidth. This is because the EV 2 is a moving body, and if the interval is increased, the error between the position of the EV 2 grasped by the server 1 and the position where the EV 2 actually travels increases, which affects the accuracy of the service provided by the application 4 to the EV user. Therefore, it is desirable that the transmission interval is narrow. In addition, it is possible to receive information distributed to the EV 2 from the server 1 or the EV management system 3 and display it on the screen of the in-vehicle terminal to notify the driver of the contents. Information to be distributed is created for each EV 2 by the application 4 connected to the server 1 according to the contents of the service. The EV 2 is assumed to be directly connected to the server 1 and connected to the EV 2 via the EV management system 3.

  The EV management system 3 is operated by an EV manufacturer or the like for providing services such as providing information to users of its own EV2. Operation information is collected from one or a plurality of EVs 2 of the company, and the contents are transmitted to the server 1. In this embodiment, it is assumed that there is no significant difference between the case where the server 1 and the EV 2 are connected via the EV management system 3 and the case where the server 1 and the EV 2 are directly connected. In the following description, the EV management system 3 is interposed. The case will be described on the assumption that EV2 and server 1 are directly connected.

  The application 4 is connected to the server 1 via a network or the like, and acquires the operation information of the EV 2 from the server 1 and distributes the information to the EV 2 via the server 1. The application 4 is roughly divided into two applications. The first application is an infrastructure provider application (core application) such as a power company that operates as a smart city infrastructure, such as adjusting the balance between local demand and supply by demand response. Refer to the operation information of EV2 stored in the server 1 in order to grasp the energy demand, and schedule the charging of EV2 according to the local energy supply and demand forecast and the reservation status of the charging station. Processing such as distribution via the server 1 is performed. This application can refer to the operation information stored in the server 1 unconditionally. The second application is an application (commercial application) operated by a third-party service provider that is not directly involved in infrastructure supply and demand.

  The service provider concludes an individual service provision contract with the EV2 user, references the operation information of the user's EV2 registered in the server 1 based on the contents of the contract, and the EV2 via the server 1 Distribute information to This application can refer only to the information of EV2 of the user who has made a contract among the operation information stored in the server 1, and only the operation information corresponding to the permitted range based on the contents of each contract. . In the present embodiment, the latter application (commercial application) of these two applications will be described below.

  As specific applications 4 assumed in the present embodiment, charging station navigation and regional advertisement distribution are assumed. The charging station navigation is an application that distributes navigation information to a charging station that can be immediately charged and that exists in the vicinity of the traveling position for the EV 2 with a small amount of charge. However, in order to select a charging station to navigate in consideration of the EV user's preferences for the operating company of the charging station, the travel history (= operation information) when that EV2 has the same amount of charge as in the past is selected. A charging station to be navigated with reference to the information obtained from the server 1 is selected. A contract is made in advance between the service that operates this application 4 and the EV user to permit the reference of the operation information and the distribution of the navigation information when the SOC of EV2 falls below. Can refer from the server 1 only to the operation information below the SOC value of the contract.

  Another application 4, regional advertisement distribution, is an application that distributes advertisement information of stores near the EV2 travel position to EV2. This application also obtains a travel history when the EV 2 has traveled in the same area in the past in order to select a store advertisement to be distributed in consideration of the preferences of the EV user and the like, and distributes it with reference to the information. Select the advertisement you want. A contract is made in advance between the service that operates this application 4 and the EV user that allows the user to refer to the operation information and to distribute the advertisement if the user is traveling in a region other than the user-specified region or is traveling in the specified region. Tie to. This is because, for example, a store near the user's home is known because the user is known, so that advertisement distribution is not necessary, or only when driving a designated sightseeing spot, the user wants to receive distribution. Based on this contract, the application 4 can refer from the server 1 only to the operation information whose travel position is outside or within the contract area (specified in four areas represented by four latitudes / longitudes). .

  Next, details of the server 1 will be described with reference to FIG. The communication unit 13 of the server 1 receives operation information transmitted from the EV 2 to the server 1 and distributes information to the EV 2. Also, the operation information reference request from the application 4 is received, the corresponding operation information is returned, the distribution information request from the application 4 to the EV 2 is received, and the operation information is transmitted to the application 4. Information transmitted by the communication unit 13 is transferred from the CPU 12, and information received by the communication unit 13 is transmitted to the CPU 12. In the following description, only contents related to collection of operation information from EV2 and provision to application 4 will be described, and delivery of information from application 4 to EV2 will be omitted.

  The CPU 12 expands the information received from the communication unit 13 in the memory 11 and executes various programs on the memory 11 to process the information and register / update the information in the cache, DB, and file in the memory 11. Similarly, various programs on the memory 11 are executed to retrieve and acquire information from caches, DBs, and files in the memory 11, expanded in the memory 11, processed as necessary, and transmitted to the communication unit 13. Etc. As a program executed by the CPU 12, an operation information registration program 11a that registers operation information received from the EV 2 in the DB, a period determination program 11b that is called from the operation information registration program 11a and determines a “period” described later of the operation information, An access that is called from the operation information reference program 11c or the operation information reference program 11c that searches the operation information corresponding to the operation information reference request from the application 4 and creates a reply message, and determines whether the operation information of the application 4 is accessible. An authority determination program 11d, a definition conversion program 11f for generating an access control definition, which will be described later, from contract information entered between a user of the EV 2 and a service provider operating the application 4 and the service provider, and an operation information registration program 11a Call from And a push transmission determination program 11g for transmitting operation information to the application 4 as needed. These programs are normally stored in a storage such as a hard disk as files, and are expanded on the memory 11 as necessary. Details of the operation of each program will be described later. The memory 11 holds an operation information cache 11e, which will be described later, as cache information.

  The information that the server 1 holds as a DB is mainly as follows. The operation information DB 14 is a DB that holds EV2 operation information. The operation information DB 14 stores an operation information table 14a that stores operation information transmitted from EV2, and a maximum value and a minimum value of some items of operation information within a period for a set of operation information included in a period. The period unit operation information table 14b is held.

  An example of the operation information table 14a is shown in FIG. In this table, one record represents one piece of operation information, EV_ID 14a0 that uniquely identifies the EV 2 that transmitted the operation information, TIMESTAMP 14a1 that represents the date and time when the operation information was measured, TOTAL_DIST 14a2 that represents the cumulative travel distance, and the remaining charge of the battery POS_X14a4 representing the latitude of the traveling position, POS_Y14a5 representing the longitude of the traveling position, STATUS 14a6 representing the start / end of operation, VEL14a7 representing the speed, MODE14a8 representing the operation mode, and PERIOD14a9 representing the period to which the operation information belongs Hold, etc.

An example of the period unit operation information table 14b is shown in FIG. In this table, one record represents one period, PERIOD14b0 which is an ID for uniquely identifying the period, TOTAL_DIST_MAX14b1 / TOTAL_DIST_MIN14b2, which represents the maximum / minimum value of TOTAL_DIST of all the actual information in the period, and the maximum / minimum value of SOC SOC_MAX14b3 / SOC_MIN14b4 representing the value, POS_X_MAX14b5 / POS_X_MIN14b6 representing the maximum / minimum value of POS_X, POS_Y_MAX14b7 / POX_Y_MIN14b8 representing the maximum / minimum value of POS_Y, and the like are held. Of the items held in the operation information, the items holding the maximum value / minimum value in the period unit operation information table 14b match the items specified in the COLUMN 15b2 in the pull access condition table 15b of the access control definition DB 15 described later. To do.
The access control definition DB 15 is a DB that holds information defining a range in which the operation information can be referred to based on the contract contents between the service provider providing the application 4 and the EV user.

  The access control definition DB 15 holds a pull access authority table 15a, a pull access condition table 15b, a push access authority table 15c, and a push access condition table 15d. Note that “pull” and “push” here indicate the type of operation information provided from the server 1 to the application 4, and “pull” is a trigger of the application 4, and a search condition for information to be acquired from the application 4 to the server 1. This means that a request including the request is transmitted, and the operation information held by the server 1 is transmitted to the application 4 in the form of a response. The push is a trigger of the server 1 and means that the operation information desired to be provided by the server 1 is transmitted to the application 4 in the form of a request from the server 1 to the application 4.

  FIG. 3A shows an example of the pull access authority table 15a. In this table, one record represents a set of one application 4 and EV 2 for which the application 4 is permitted to refer to the operation information, AC_PV_ID 15a0 for uniquely specifying the access right, App_ID 15a1 for uniquely specifying the application 4, Holds EV_ID 15a2, etc. For example, if the access authority is AC_PV_ID 15a0 “p000002,” the application whose App_ID 15a1 is “App002” has the authority to refer to the operation information whose EV_ID 15a2 is “EV001” (however, only the operation information that satisfies the conditions specified in the access conditions described later). Represent.

  FIG. 3B shows an example of the pull access condition table 15b. This table shows the conditions when one record can be accessed, AC_CD_ID15b0 that uniquely identifies the access condition, AC_PV_ID15b1 that represents the access authority associated with the access condition, and the column name of the operation information that is subject to access permission determination , COLUMN 15b2 that represents the value of COLUMN 15b2 that is a boundary value for determining whether access is possible, CONDITION 15b4 that represents the condition of VALUE 15b3 of COLUMN 15b2 when access is possible, and the like. In this embodiment, the term “link” is used synonymously with the term “related”. CONDITION 15b4 is represented by an inequality sign or a combination of an equal sign and an inequality sign. For example, an access condition in which AC_PV_ID 15a0 (15b1) is associated with p000002 is as follows. AC_CD_ID 15b0 is “c000001”, and this access condition is “SOC” for COLUMN 15b2, “50” for VALUE 15b3, and “<=” for CONDITION 15b4. In this case, it means that the operation information whose SOC value is 50% or less can be referred. One or a plurality of access conditions are associated with the access authority, and the access conditions associated with the same access authority are AND conditions. Also, it is possible to register a plurality of records with the same App_ID 15a1 and EV_ID 15a2 pair, and in this case, the access authority is an OR condition.

  FIG. 3C shows data items held in the push access authority table 15c. As described here, it is the same as the data item in the pull access authority table 15a. The data items AC_PV_ID 15c0, App_ID 15c1, and EV_ID 15c2 of the push access authority table 15d match 15a0, 15a1, and 15a2, respectively.

  FIG. 3D shows data items held in the push access condition table 15d. As described here, it is the same as the data item of the pull access condition table 15b. The data items AC_CD_ID15d0, AC_PV_ID15c1, COLUMN15c2, VALUE15d3, and CONDITION15d4 in the push access condition table 15d match 15b0, 15b1, 15b2, 15b3, and 15b4, respectively.

In addition to the above DB, a period definition file 16 and a definition conversion dictionary file 17 described later are held as server definition information. The contents of this file are loaded into the memory 11 when the server 1 is activated. When the content of the period definition file 16 is updated, the updated content is loaded into the memory 11 each time.
In addition to the above, although not shown, the server 1 holds a DB that holds attribute information of each EV 2 and application 4.

  Next, the operation of each program of the server 1 will be described.

  The operation of the definition conversion program 11f will be described with reference to FIG. This program operates when the server 1 receives input of contract information related to service provision between the service provider operating the application 4 and the user of the EV 2.

  First, the service provider of the application 4 or the user of the EV 2 inputs contract information to the server 1 through the contract content registration screen provided by the server 1.

  FIG. 5 shows an example of a contract content registration screen 1000 when the service content is EV charge amount monitoring. This screen can be referred to and input of information via a network by a browser or the like, and an input person (service provider or EV2 user) inputs a corresponding value to each input field based on the contract contents. In the example of FIG. 5, first, a contract category (here “EV charge amount monitoring”) is selected from the candidate values in the contract selection field 1001. When the value in the contract selection field 1001 is selected, the other input fields in the screen are updated to the configuration of the input field according to the value selected in the contract selection field 1001. In the case of EV charge amount monitoring, there are only two input fields, an application ID input field 1002 and a target device ID input field 1003. The former inputs the application ID (App_ID) of the application 4 that can acquire the operation information held by the server 1. In the latter case, an EV ID (EV_ID) that is a target of information provided to the application 4 input in the application ID input field 1002 is input. The input person presses the registration button 1004 after entering values in all the input fields. When this button is pressed, the input content is transmitted as an argument to the definition conversion program 11f, and the definition conversion program 11f receives the content (S301).

  The definition conversion program 11f searches the contents of the definition conversion dictionary file 17 corresponding to the category in the contract selection field 1001 received in S301 (S302).

  FIG. 6 shows an example of the definition conversion dictionary file 17. This file is generated for each service content (= the category) of the service provider contracted between the service provider and the server 1 operator, and is generated and registered by the service provider or the server 1 operator. The Therefore, when the same service provider additionally provides another service, this file is generated separately. The contents held in this file will be described in sequence. In S302, the “CATEGORY” value representing the service category is searched for the same definition conversion dictionary file 17 as the selected value (EV charge monitoring), and the file is searched. Get the content held by. The value of “PRIORITY” is confirmed from the contents of the acquired definition conversion dictionary file 17 (S303). In the example of this embodiment, the value is either NORMAL or HIGH. If NORMAL, the process proceeds to S305. If HIGH, the process proceeds to S304. If the value of PRIORITY is HIGH, the service is of a high degree of urgency and importance. When the operation information is transmitted from EV 2 to server 1, if the operation information corresponds to the definition, the server 1 sends it to the designated application 4. Push to send. However, information transmission by pulling is also possible. In the case of NORMAL, the service is not so urgent or important and only the information is sent to the application 4 by pull.

  If the value of PRIORITY is HIGH, definitions are first added to the push access authority table 15c and the push access condition table 15d (S304). The newly assigned AC_PV_ID and the values in the application ID input field 1002 and target device ID input field 1003 input in S301 are registered in AC_PV_ID 15c0, App_ID 15c1, and EV_ID 15c2, respectively. Further, the “CHECK_COLUMN” portion of the access definition conversion dictionary file 17 is referred to. This part describes a determination condition for information to be provided to the application, and is composed of a monitoring target item COLUMN_NAME that is a target item name of the condition and BORDER of the condition content. BORDER is further composed of BORDER_VALUE indicating the boundary value of COLUMN_NAME value and BORDER_VALUE_CONDITION indicating the condition (match, above, less than, etc.). The AC_CD_ID 15d0 in the push access condition table 15d includes the newly assigned AC_CD_ID and the AC_PV_ID that was assigned at the time of registration in the push access authority table, the COLUMN_NAME value, the BORDER_VALUE value in the “BORDER” portion, and the BORDER_VALUE_CONDITION value. , AC_PV_ID 15d1, COLUMN 15d2, VALUE 15d3, and CONDITION 15d4. In the example of FIG. 6, when the value of the item name SOC14a3 is 40 or less, this means that the information is notified to the application 4.

  Whether PRIORITY is HIGH or NORMAL, definitions are added to the pull access authority table 15a and the pull access condition table 15b (S305). The content to be added is the same as that described in S304. Therefore, if PRIORITY is HIGH, definitions are added for both push and pull.

Next, it is confirmed whether or not the contents of the definition conversion dictionary file 17 are described in the “PERIOD_COLUMN” portion. This is described when there is information to be added to the period definition file 16 described later, and can be omitted when there is no information to be added. If there is, the process proceeds to S307, and if not, the process of the definition conversion program 11f is terminated as it is (S306).
If there is a description in the “PERIOD_COLUMN” part, a definition is added to the period definition file 16 as necessary (S307). The period definition file 16 is a file that holds the definition of the period necessary for holding the operation information collected from the EV 2 for each period. This file is referred to by the period determination program 11b (the description at the time of reference will be described later), and only additional registration of definitions is performed here.

FIG. 7 shows an example of the contents of the period definition file 16. The contents of this file are the items that define the period among the items held in the operation information, the item name, and the value / condition to divide the period with “=”, and one or more pairs Multiple definitions. In the example of FIG. 7, the item name “STATUS” means that the values “START” and “STOP” are set as different periods, and the period determination program 11b receives the status information STATUS14a6 of the previous TIMESTAMP14a1 operation information. This means that the value of STATUS14a6 in the information is compared, and if the status is changed from START to STOP or vice versa, the previous and received operation information is set as another period. Similarly, in the item name “TIMESTAMP”, when the value of TIMESTAMP14a1 of the received operation information exceeds 10 minutes from the value of TIMESTAMP14a1 of the previous operation information, it means that another period is set. When multiple lines are specified, another period is set if any of the conditions is met.
The PERIOD_COLUMN portion of the definition conversion dictionary file 17 will be described. PREIOD_COLUMN holds the definition contents to be added to the period definition file 16 described above, COLUMN_NAME means the item name (before “=”) of the contents of the period definition file 16, and values / conditions for which the period should be divided (period definition) It is composed of a plurality of PERIOD_COLUMN_BORDER representing “after” of the content of the file 16. In the example of FIG. 5, two PERIOD_COLUMN_BORDER are defined, and when the value of the item name MODE compares the previous operation information of TIMESTAMP14a1 with the received operation information, if ECO changes to DRIVE or vice versa Means a different period. The same applies when three or more are defined. The PERIOD_COLUMN item, as will be described later in the description when referring to the period definition file 16, selects an item that greatly affects the change in the value of the monitoring target item depending on its value.

  In the processing of S307, the content of PERIOD_COLUMN is acquired, the value is compared with the content of the period definition file 16, and the item name (before “=”) and the value / condition (after “=”) are the same. If there is not, additional registration of a new line is performed, and if there is, additional registration is not performed. In the example of FIG. 7, “MODE =“ ECO ”/“ DRIVE ”;” on the third line is added by this processing.

Next, the presence / absence of PERIOD_COLUMN_BORDER with “EFFECT = HIGH” in PERIOD_COLUMN is confirmed (S308). If there is, the process proceeds to S309, and if not, the process of the definition conversion program 11f ends. If EFFECT = HIGH is described, the item name and condition are additionally registered in the pull or push access authority table and access condition table (S309). The item specified by COLUMN_NAME affects the change of the monitoring target item depending on the value, but the value that increases the displacement amount of the monitoring target item is set to “EFFECT” in the PERIOD_COLUMN_BORDER part of the definition conversion dictionary file 17. = HIGH ”.
This description means that items that are not monitored items but have a large effect on changes in their values and operation information that holds values are subject to information provision to the application. To do. For example, in the example of FIG. 6, when the value of the item name MODE14a8 is DRIVE, the amount of decrease in the value of SOC14a3 increases, so even if the value of SOC14a3 is larger than 40, the operation information to be provided to the application 4 It means that. Therefore, additional registration to the access authority table 15a / 15c for pull / push and the access condition table 15b / 15d is necessary. When PRIORITY is HIGH in the processing of S303, registration is performed only in both the push and pull tables, and in the case of NORMAL, registration is performed only in the pull table. Number the AC_PV_ID again, register additional records in the access authority table 15a / 15c, and additionally register the contents of PERIOD_COLUMN_BORDER with EFFECT = HIGH in the access condition table 15b / 15d. When the above processing ends, the processing ends.
The above is the flow of processing of the definition conversion program 11f.

  In the above description, EV charge amount monitoring is taken as an example of the service category. Next, a case where “EV regional advertisement distribution” is taken as an example will be described. It should be noted that the description overlapping with the EV charge amount monitoring process is omitted, and only the difference is described.

  FIG. 8 shows an example of the contract information registration screen 1000 when “EV regional advertisement distribution (other than near home)” is selected in the contract selection column 1001 on the contract information registration screen 1000 of S301. As shown in this figure, when “EV regional advertisement distribution (except near home)” is selected, a home latitude input field 1005 and a home longitude input field 1006 are displayed in addition to 1002 and 1003. The input person inputs the latitude and longitude of the home of the user of EV2. If the latitude / longitude is unknown, the latitude / longitude is calculated and input from the user's address.

  FIG. 9 shows an example of the definition conversion dictionary file 17 corresponding to EV regional advertisement distribution (other than near home). In this service, PRIORITY is NORMAL (because advertisement delivery is neither urgent nor important), so the processing of S304 is not performed and the access authority table for pulling 15a and the access condition table for pulling 15b are accessed in S305. Only additional registration is performed.

  Here, as shown in FIG. 9, two CEHCK_COLUMN exist in this file example. When defining multiple CHECK_COLUMNs, define CHECK_COLUMN_CONDITION to indicate whether they are OR conditions or AND conditions. A plurality of BORDERs in CHECK_COLUMN are also defined. Similarly, when multiple BORDERs are defined, BORDER_CONDITION defines whether they are OR conditions or AND conditions. As shown in FIG. 9, when CHECK_COLUMN_CONDITION is OR and BORDER_CONDITION is OR, each BORDER is defined as a separate access authority. Accordingly, in this case, four records are additionally registered in the pull access authority table 15a, and one record of the pull access condition table 15b associated with each record is registered. When CHECK_COLUMN_CONDITION is OR and BORDER_CONDITION is AND, two records are additionally registered in the pull access authority table 15a, and two records in the pull access condition table 15b associated with each are registered.

When CHECK_COLUMN_CONDITION is AND and BORDER_CONDITION is AND, one record is additionally registered in the pull access authority table 15a, and four records are registered as the records in the pull access condition table 15b to be linked.
Also, as shown in FIG. 9, there is a description of PARAM_1 or PARAM_2 such as “PARAM_1 + 0.1” as the value of BORDER_VALUE. PARAM_1 and PARAM_2 correspond to the home latitude input field 1005 and the home longitude input field 1006 of the contract content registration screen shown in FIG. 8, respectively, and the value entered in the home latitude input field 1005 plus one minute or one minute. The subtracted value is calculated, and the calculation result is registered in the pull access condition table 15b. In the example shown in FIG. 9, when the EV 2 is located in a place (outside ± 1 minute) that is not within ± 1 minute from the latitude and longitude of the home, it means that the application 4 can refer to the operation information. .

  In the processing of S307, since the value of the operation information item VEL14a7 is a continuous value in the case of FIG. 9, the definition of whether the period should be separated or the same should be registered in the period definition file 16 depending on the range. In the example of FIG. 9, three cases are defined: 30 or less, greater than 30 and 80 or less, and greater than 80, and a transition is detected when a transition across them is detected. This means that as the speed of EV2 increases, the moving distance also increases, and the position of EV2 is likely to change greatly. With this description, the definition added to the period definition file 16 is as shown in the fourth line of FIG. In the example of FIG. 9, since there is no BORDER with EFFECT = HIGH, the process of S309 is not performed.

  In the above processing, the contract information registration screen 1000 needs to be prepared for each category. However, since the difference between categories is only the input parameters such as PARAM_1 and PARAM_2 in the example of FIG. 9, the contract is selected in S301. When the value in the column 1001 is selected, the presence of PARAM_1 or PARAM_2 is detected from the contents of the corresponding conversion definition dictionary file 17, and the correspondence between the text displayed on the contract information registration screen 1000 and the input parameter is set in a separate setting file. By holding and referring to it, it is possible to automatically generate the contract information registration screen 1000 from the conversion definition dictionary file 17.

  With the above processing, even when the service category of the application 4 connected to the server 1 is various, only the number of definition conversion dictionary files 17 are prepared, and the definition from the contract contents to the access conditions to the operation information is defined. Conversion to and registration of them can be performed automatically. Thereby, even when an application to be connected is added / extended, it is possible to create / register a definition relating to provision of operation information to the application 4 without bothering the operator of the server 1.

  Next, operations of the operation information registration program 11a, the period determination program 11b, and the push transmission determination program 11g will be described. The operation information registration program 11a operates when receiving operation information from the EV 2 (this operation information does not include PERIOD 14a9) and registering it in the operation information DB 14 as described above.

  FIG. 10 shows the processing sequence at that time. Hereinafter, it demonstrates along this figure. First, an operation information registration request message including one or more pieces of operation information to be registered is transmitted from the EV 2 to the server 1 via the network. The case where a plurality of pieces of operation information are included occurs when the operation information cannot be transmitted to the server 1 due to a poor communication state of the EV 2 and transmitted to the server 1 at the next cycle. When the operation information registration program 11a receives the message via the communication unit 13, two threads are woken up. One is a thread for performing a process of determining whether or not the received operation information should be push-transmitted to the application 4, and calls the push determination program 11g. The other thread transmits the operation information to the period determination program 11b and calls it to determine the period of the received operation information. These threads are executed in parallel. FIG. 11 shows a flowchart when the push transmission determination program 11g performs the push transmission determination process for the received operation information and the push transmission process to the application 4 as necessary.

  Based on the EV_ID 14a0 of the received operation information, a record (access authority record) in the push access authority table 15c whose EV_ID matches the EV_ID 15a2 is searched (S401). If there is even one corresponding record in S401, the process proceeds to S403. If there is none, the process is terminated because there is no need for push transmission (S402).

If there is a corresponding record in S401, the following processes from S404 to S407 are repeated for the number of access authority records acquired (S403).
Using the AC_PV_ID as a key, a record of the push access condition table 15d associated with the access authority record to be processed is acquired (S404). The received operation information is compared with the contents of the access condition acquired in S404, and it is determined whether the condition is met (S405). When a plurality of pieces of operation information are included, determination processing is performed for all of them. If the access condition is satisfied, the process proceeds to S407. If not, the process proceeds to S408, and the process after S404 is performed on the next access authority record (S406). In this case, since the operation information requires push transmission from the server 1 to the application 4, the operation information corresponding to the push transmission list prepared in the memory 11 is added for each App_ID of the application 4 serving as the transmission destination (S407). ). If there is no applicable App_ID push transmission list, prepare a new one and add operation information. When the processing up to S407 is completed, the processing from S404 on on the next access authority record is performed. When the processing for all access authority records is completed, the process proceeds to S409 (S408). The processing of S410 is performed for the number of transmission destinations in the push transmission list generated in S407 (S409). Based on App_ID of the push transmission list, the URL of the transmission destination held as the attribute information of the application 4 is acquired. A transmission message is generated based on the contents of the push transmission list, and the message is transmitted to the acquired URL (S410). When the processing of S410 is completed, the processing of S410 for the next transmission destination is performed. When the processing for all transmission destinations is completed, the processing is terminated (S411). The above is the process flow of the push transmission determination program 11g.

  Returning to the processing sequence of FIG. The period determination program 11b performs a period determination process on the received operation information.

  FIG. 12 shows a flowchart of the processing at this time. Hereinafter, it demonstrates along this figure.

If there is a plurality of received operation information, the operation information is sorted in ascending order of the TIMESTAMP 14a1 of the operation information (S101).
Next, the contents of the period definition file 16 loaded in the memory 11 are acquired (S102). An example of the contents of the period definition file 16 is shown in FIG. This definition file represents a delimiter condition when delimiting the operation information of EV2 by a period. Again, in the example of FIG. 7, in the first line, the stored value of STATUS 14a6 of the operation information is compared with the previously received operation information (in the case of multiple operation information, the operation information processed before, the same applies hereinafter). This means that the period is divided when transitioning from START to STOP or vice versa. In the second line, if the TIMESTAMP 14a1 of the received operation information is a value that has passed 10 minutes or more from the previously received operation information, it means that the period is divided. The third line means that the period is divided when the stored value of the operation information MODE 14a8 is changed from “ECO” to “DRIVE” or vice versa as compared with the previously received operation information. In the 4th line, VEL14a7 indicating the speed of operation information is divided into three categories of less than 30km / h, 30km / h or more and less than 80km / h, and 80km / h or more. This means that the period is separated. When multiple lines are specified as in this example, it means that the period is divided if any one of them is applicable. This definition can be freely defined at the time of construction of the server 1 as long as it is an item held as operation information, and may be any of the examples in FIG. 7 or other items of operation information. Separation boundary values and character strings can be freely set as long as they can be collected by operating information. The example in the first row of the example in Fig. 7 assumes that there are many personal use EV2s that are frequently operated / stopped, and the example in the second row assumes that there are many EV2s that continue to operate for a long time, such as trucks and buses. Yes. The examples of the third and fourth lines are as described above.

  Next, the contents of the operation information cache 11e of the memory 11 are acquired based on the EV_ID 14a0 included in the received operation information (S103).

FIG. 13 shows an example of the contents of this operation information cache 11e. This cache includes two types of information. One is a period unit cache 11e0 and the other is a period determination cache 11e1. The former holds period unit operation information of the period processed last time. The latter holds the corresponding value of each item of operation information processed last time for each item of operation information defined in the period definition file 16. These caches are held for each EV_ID 14a0. When EV_ID 14a0 of the transmission source EV2 is “EV001”, the contents shown in FIG. 13 are acquired.
Thereafter, the processing up to S115 is repeated for each operation information received by the period determination program 11b (S104).

  Thereafter, the processing up to S113 is repeated for each item of operation information defined in the period definition file 16. In the example of FIG. 7, there are four items of “STATUS”, “TIMESTAMP”, “MODE”, and “VEL” (S105).

  For the items in the period definition file 16 to be processed, the value of the period determination cache 11e1 is compared with the value of the corresponding item in the operation information to be processed (S106). As a result of the comparison, if the period definition file 16 falls within the definition period delimiter, the process proceeds to S108, and if not, the process proceeds to S111 (S107). For example, when the STATUS cache value is START and the STATUS 14a6 of the operation information is START or no value, it does not correspond to the period separator. If the VEL cache value is 30-80 and the VEL14a7 value of the operation information is 16 km / h, it corresponds to a period break.

  If the period falls, the loop processing of S105 to S113 is exited. In order to register a new period, the period ID 14b0 (14a9), which is the ID of the new registration period, is assigned (S108). Further, both the period unit cache 11e0 and the period determination cache 11e1 of the operation information cache 11e are rewritten with the contents of the operation information (S109). The period unit cache 11e0 is updated with the contents of the operation information (the maximum value and the minimum value are the same value), and the period determination cache 11e1 is updated with the corresponding value or the value of the period definition for each item of the operation information. Then, a record is newly registered in the period unit operation information table 14b of the operation information DB 14 with the same contents as the contents updated in the period unit cache 11e0 (S110). For example, when the period value of the period unit cache 11e0 is “E001P010”, “E001P011” is assigned as a new period, and the period unit cache 11e0 is used as the period unit operation information corresponding to this period with the contents of the operation information to be processed. And new record registration of the period unit operation information table 14b.

  If it does not fall within the period separator, the item that needs to be updated is updated in each item of the operation information cache 11e (S111). In the example of FIG. 13, for the period unit cache 11e0, the maximum value / minimum value of the corresponding item is updated when each item of the operation information is larger / smaller than the maximum / minimum value of the cache. In the case of the period determination cache 11e1, only the value of TIMESTAMP is updated. Further, when the period unit cache 11e0 is updated, the value of the period unit operation information table 14b of the operation information DB 14 is also updated (S112). After performing the above processing, the processing of S106 is performed again with the next item defined in the period definition file 16 as the processing target. For example, when the SOC_MIN value of the period unit cache 11e0 is “45” and the SOC 14a3 value of the operation information to be processed is “43”, the value of “SOC_MIN” of the period unit cache 11e0 is updated to 43.

When the processing from S108 to S110 or the processing up to S113 is performed for all items defined in the period definition file 16 and does not fall under the period delimiter, the value of PERIOD 14a9 is set in the operation information to be processed (S114). If it falls under the period break, the PERIOD (eg: EV001P011) numbered in S108 is set. If not, the PERIOD (eg: EV001P010) of the period unit cache 11e0 is set.
When the processing up to S115 has been performed for all the received operation information, the operation information for which PERIOD has been set is returned to the operation information registration program 11a as a return value (S116), and the processing ends.

The above is the flow of the period determination process of the period determination program 11b.
The operation information registration program 11 a registers the operation information received as a return value in the operation information table 14 a of the operation information DB 14. When all the operation information is registered, a return value indicating completion of registration is returned to EV2, and the process is terminated. When the EV 2 receives the registration completion return value, the operation information transmitted to the server 1 is discarded. If the registration completion return value is not received, it is sent again at the next operation information transmission timing.

  The above is the process flow of the operation information registration program 11a. In the above example, the contents of the period definition file 16 are common definitions for all EVs 2, but may be defined for each EV_ID 14a0 when the operation mode that can be selected for each EV2 vehicle type is different.

  Next, operations of the operation information reference program 11c and the access authority determination program 11d will be described. These programs operate when an operation information reference request is received from the application 4 as described above.

FIG. 14 shows a processing sequence of the operation information reference process and the access authority determination process. Hereinafter, it demonstrates along this figure.
First, an operation 4 reference request message is transmitted from the application 4 to the server 1 via the network. This message includes the App_ID of the transmission source application 4, the EV_ID to be referred to, and the search condition (here, the date and time range of the operation information TIMESTAMP). When the operation information reference program 11c receives the message via the communication unit 13, the operation information table 14a of the operation information DB 14 is searched based on the EV_ID and the search condition, and a list of operation information corresponding to these is acquired.

  Next, the access authority determination program 11d is called in order to determine whether the reference request source (message transmission source) application 4 can refer to the obtained operation information. At the time of calling, App_ID, EV_ID, and the operation information list of search results are passed to the access authority determination process.

FIG. 15 is a detailed flowchart of the access authority determination process. Hereinafter, it demonstrates along this figure.
The access authority determination program 11d searches the pull access authority table 15a of the access control definition DB 15 based on the received App_ID 15a1 and EV_ID 15a2 (S201). If there is a corresponding access right, the pull access condition table 15b is further searched based on the AC_PV_ID 15a0 of the access right to obtain the corresponding access condition. For example, when App_ID 15a1 is “App002” and EV_ID 15a2 is “EV001”, the access authority is AC_PV_ID 15a0 “p000002”. Further, in the pull access condition table 15b, the access condition in which AC_CD_ID 15b0 is “c000001” is applicable.

  If there is a record with the corresponding access authority, the process proceeds to S204, and if not, the process proceeds to S203 (S202). If there is no corresponding access authority record, the reference request source application 4 assumes that there is no reference authority for the operation information of the specified EV_ID, and sets an empty return value (S203). If there is a record of the corresponding access authority, a list of operation information corresponding to the search condition received when the access authority determination program 11d is called is set as a return value (S204).

Thereafter, the processing up to S215 is repeated for each access condition acquired in S201 (S205).
Those PERIODs 14a9 are acquired from the operation information list set as the return value (S206). For example, assume that PERIODs of “EV001P009”, “EV001P010”, and “EV001P011” are acquired.

Thereafter, the processing up to S214 is repeated for each PERIOD acquired in S206 (S207).
The maximum value and the minimum value of the record corresponding to the processing target PERIOD 14b0 in the period unit operation information table 14b of the operation information DB 14 corresponding to the column name of the operation information specified in the COLUMN 15b2 of the access condition to be processed are acquired. Compare the acquired maximum value and minimum value with the values specified in VALUE15b3 and CONDITION15b4 of the access condition, and whether the maximum value and minimum value are both applicable or not applicable It is not classified, but the other one is classified (S208). For example, when AC_CD_ID 15b0 is c000001, COLUMN 15b2 is “SOC”, so SOC_MAX 14b3 and SOC_MIN 14b4 of period unit operation information are acquired. Since access values VALUE15b3 and CONDITION15b4 are <= 50, neither PERIOD: EV001P009 is applicable to the condition, PERIOD: EV001P010 is applicable to only one, and PERIOD: EV001P011 is applicable to both. Become.

  As a result of the comparison in S208, the process proceeds to S210 if both are applicable, to S211 if none is applicable, and to S212 if only one is applicable (S209). When both the maximum value and the minimum value are applicable, all the operation information corresponding to the PERIOD is set as referenceable operation information corresponding to the access condition, and is left in the return value (S210). In the above example, PERIOD 14a9 can refer to all the operation information of EV001P011. If neither the maximum value nor the minimum value is applicable, all the operation information corresponding to the PERIOD is regarded as operation information that does not correspond to the access condition and cannot be referred to, and is deleted from the return value (S211). In the above example, PERIOD 14a9 cannot refer to all the operation information of EV001P009. When only one of the maximum value and the minimum value is applicable, it means that operation information for the period includes a mixture of information that can be referred to and information that cannot be referred to. In this case, it is necessary to determine whether or not the access condition is satisfied for each piece of operation information. In the above example, PERIOD 14a9 is the operation information corresponding to EV001P010. In order to finish the determination process early, the operation information corresponding to PERIOD 14a9 is sorted by the operation information item corresponding to COLUMN 15b2 of the access condition (S212), and the values of the operation information are sequentially compared with the values of the operation information VALUE 15b3 and CONDITION 15b4. Access accessibility determination is performed. The processing is terminated when the corresponding operation information is changed to the non-applicable operation information, or when the operation information is not changed to the corresponding operation information, and the non-applicable operation information is deleted from the return value (S213).

  The processing from S207 to S214 is performed for the number of PERIODs acquired in S206. If there are a plurality of access conditions, the process from S205 to S215 is performed again under the next access condition. When all access conditions have been processed, the finally remaining return values are returned to the operation information reference program 11c as a referenceable operation information list (S216), and the processing is terminated.

  The above is the flow of the access authority determination process of the access authority determination program 11d. The operation information reference program 11c returns the operation information received as a return value to the application 4 as a search result, and ends the processing. The above is the process flow of the operation information reference program 11c. In the above example, only one record in the pull access authority table 15a corresponds to the processing of S201. However, when a plurality of records correspond, the OR condition is satisfied, so the processing from S204 to S215 is performed. Are performed in parallel for each access authority, and the operation information list of the remaining return values is collected under the OR condition as the return value of the final access determination process.

  In the above example, the access authority determination process is performed after the application 4 searches the operation information using the specified EV_ID and search conditions. However, only the presence / absence determination of App_ID 15a1 and EV_ID 15a2 corresponding to the pull access authority table 15a is searched. It may be performed earlier. In this case, if there is no specified App_ID 15a1 and EV_ID 15a2 in the pull access authority table 15a, it can be determined that there is no corresponding operation information without performing the operation information search process.

  In the above example, the application 4 designates EV_ID together with the search condition and makes a reference request. However, EV_ID may not be designated. In this case, after the search of the operation information DB 14 is executed using only the search conditions in the process of FIG. 14, the EV_ID 14a0 is obtained from the corresponding operation information, and one or a plurality of EV_IDs are used to obtain the steps after S201 shown in FIG. Processing will be performed.

In the above example, an example in which there is an access condition associated with the access authority has been described. However, if there is only an access authority record and there is no access condition associated with it, the App_ID 15a1 specified by the access authority is the specified EV_ID 15a2. It means that all operation information can be referred. Therefore, it is possible to refer to operation information corresponding to EV_ID 15a2 (14a0) without performing the processing shown in FIG.
Since the registration request from the EV 2 and the reference request from the application 4 are performed in parallel, the processing of the operating information reference program 11c is started during the processing of the operating information registration program 11a, or conversely, the operating information reference program There is a possibility that the process of the operation information registration program 11a is started during the process of 11c. In these cases, the operation information registered in the process and the period unit operation information are committed only after the process of the operation information registration program 11a is completed. The reference process is performed not on the reference target of the information reference program 11c but on the record of the already-committed operation information and the period unit operation information.

  Through the above processing, the server 1 not only uses the access control method based on fixed information such as whether all operation information of the EV_ID can be referred to by the definition of the combination of App_ID and EV_ID, or whether all operation information can be referred to. Depending on the value of time-series information whose value changes from moment to moment, such as SOC and travel position, for example, allow reference to operation information only when the SOC is low, only allow reference to operation information when traveling in a specific area It is possible to determine whether the operation information can be referred to or not. In addition, when determining whether to refer to operation information based on SOC or travel position, the operation information is summarized by the “period” that is a set of operation information, and whether or not the contents of the access conditions are satisfied for each period is the maximum of the period. By using the value / minimum value to determine, the number of operation information to be determined can be reduced compared to the case of determining each operation information, and as a result, the determination processing time is reduced, resulting in a large amount of operation information. Even when referring to the application, it is possible to respond to the reference request of the application in a realistic processing time.

  Also, as described in the above example as a way of dividing the period, the period is divided when the value of the operation mode “MODE” or the range of the EV speed “VEL” changes. For example, in the case of MODE, SOC The period can be divided into the ECO mode with a small fluctuation range and the DRIVE mode with a large fluctuation range of SOC. As a result, there is less possibility of straddling the boundary value of the access condition within the period when the fluctuation range is small, and there is a possibility that the period when the fluctuation range is small is distributed to the processing of S210 or S211 in the comparison processing of S208 of FIG. Get higher. As a result, the number of pieces of operation information that can be distributed to the processes after S212 that require determination of each piece of operation information can be reduced. Similarly, in the case of “VEL”, the period can be divided into a low speed range where the travel position fluctuation range is small and a high speed range where the travel position fluctuation range is large. As a result, this contributes to further reduction in the access processing time.

Although the best mode for carrying out the present invention has been specifically described above, the present invention is not limited to this, and various modifications can be made without departing from the scope of the invention. For example, as described above, in this embodiment, EV is the target, and the SOC and the traveling position are the access condition items. However, the time series information that can be collected from other devices is the access condition item. It is possible to cope with this situation.
In the above embodiment, the server 1 is described as centrally managing operation information and access authority information. However, even when information and functions are distributed and held, the server 1 is virtually integrated and managed. As long as it can be used and referenced freely, the actual information / function location can be anywhere.

1 server 2 EV
3 EV management system 4 Application 11 Memory 11a Operation information registration program 11b Period determination program 11c Operation information reference program 11d Access authority determination program 11e Operation information cache 11f Definition conversion program 11g Push transmission determination program 12 CPU
13 Communication Department 14 Operation Information DB
15 Access control definition DB
16 Period definition file 17 Definition conversion dictionary file 21 In-vehicle terminal

Claims (7)

An information management method for setting access rights to information related to the target device according to the current status of the target device,
An accumulation step of accumulating state information about the target device in a database by an accumulation unit ;
A requesting step of receiving an information acquisition request regarding the target device by the receiving unit ;
A status information acquisition step of acquiring status information of the target device from the database by a status information acquisition unit ;
An access condition acquisition step of acquiring an access condition related to the target device by the determination unit ;
A determination step of determining whether or not a response to the information acquisition request is possible from the acquired state information and access conditions by the determination unit ;
An information transmission step of transmitting information about the target device to a transmission source of the information acquisition request based on a result of the determination by a transmission unit ;
The accumulation step accumulates the state information at a plurality of time points at predetermined time intervals,
The determination step determines whether a response to the information acquisition request is possible depending on whether any of the state information at the plurality of time points satisfies the access condition,
The information management method according to claim 1, wherein the state information at the plurality of time points is a maximum value and a minimum value of the state information at the predetermined time . The information management method according to claim 1 ,
The information management method, wherein the predetermined time is changed according to a change in the state information. An information management device that sets access rights to information related to the target device according to the current status of the target device,
An accumulator that accumulates status information about the target device in a database;
A receiving unit for receiving an information acquisition request regarding the target device;
A status information acquisition unit that acquires status information of the target device from the database;
A determination unit that acquires an access condition related to the target device and determines whether a response to the information acquisition request is possible from the acquired state information and access condition;
A transmission unit that transmits information on the target device to a transmission source of the information acquisition request based on the result of the determination ,
The storage unit stores the state information at a plurality of points in time for each predetermined time,
The determination unit determines whether a response to the information acquisition request is possible based on whether any of the state information at the plurality of times corresponds to the access condition,
The state information at the plurality of points in time is a maximum value and a minimum value of the state information at the predetermined time . In the information management device according to claim 3 ,
The information management apparatus according to claim 1, wherein the predetermined time is changed according to a change in the state information. Refer to the information management device provided for each predetermined area including a plurality of infrastructure supply and demand devices and the operation information of the infrastructure supply and demand devices held by the information management device after obtaining permission from the owner or user of the device And an information utilization system that provides a service utilizing the operation information to the owner or user, and an information management system comprising:
The information management device receives operation information including time-series information transmitted from the device, and based on the operation state of the device, which means operation start and end of the device included in the operation information, When the operation information is within the same operation range, and if it is within the same operation period, the operation information within the same operation range in the past and the received operation information are included in the operation information Compares the values of the series information, calculates the maximum and minimum values of the time series information within the same operating period and holds them as period unit operating information, and if not within the same operating range, accepts it as a new operating range Extract the maximum value and the minimum value from the time series information of the operation information and similarly hold as period unit operation information,
The information management device holds a reference permission condition of the operation information between the information utilization device and the device defined in a range of time series information included in the operation information,
The operation information reference request from the information utilization apparatus is received, the maximum value and the minimum value of the time series information held by the period unit operation information, and the range of the time series information defined by the reference permission condition If both the maximum value and the minimum value are included in the range as a result of the comparison, all the operation information included in the period can be referred to, and the maximum value and the minimum value are in the range. Is not included, all the operation information included in the period is not referable.
An information management system characterized by that. In the information management system according to claim 5 ,
The information management device is an arbitrary pre-designated time range from the operation information received at the previous timing from the date and time when the device measured the operation information, instead of the operation state of the device meaning the operation start and end of the device An information management system for determining whether or not the period is included in the same operation period based on whether or not the period has elapsed. In the information management system according to claim 5 ,
The information management device, in place of the operation status of the device that means the start and end of the operation of the device, the value of the other time series information included in the operation information matches or falls within the specified range The information management system is characterized in that it is determined whether or not it is included in the same operation period based on whether or not its value and range have changed.

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