JP2019152925A - Apparatus management system, gateway, server, and operation method and program thereof - Google Patents

Abstract

To provide a server with information on an apparatus, without updating a program of a gateway, when a position of the information recorded on a memory of the apparatus is changed.SOLUTION: An apparatus management system 1 comprises a server 2 and a gateway 3. Apparatuses 4a-4c have a memory 41 including a previously determined service data area. The server 2 records request property data which specifies a position of data required for the apparatuses 4a-4c. The gateway 3 includes: a request property data acquisition unit 31; an acquisition property data acquisition unit 32 which acquires acquisition property data including information specifying the position of the data provided by the apparatuses 4a-4c; a data acquisition unit 33 which acquires the data recorded on the position indicated by the request property data and the acquisition property data from the memory 41 of the apparatuses 4a-4c; and a data transmission unit 34.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a data acquisition technique in a device management system in which a server acquires information from a device via a gateway.

  Conventionally, a device management system for monitoring a plurality of devices in a facility such as a house with a server has been proposed. For example, Patent Document 1 discloses a home energy management system (HEMS) that includes a display device that is connected to a plurality of electrical devices provided in a house via a communication network and controls the plurality of electrical devices. Has been.

JP 2014-165998 A

  For example, in a system such as HEMS, a gateway is provided between communication paths between a server and a device. That is, the server communicates with the device via the gateway. Communication between the gateway and the device is performed based on a predetermined standard. The standard may determine what information is recorded in which location in the device memory. In this case, the gateway accesses the memory location determined by the standard, and acquires device information. The gateway transmits information acquired from the device to the server.

  The above standards are expected to change. For example, the standard can be changed when an item of information recorded in the memory of the device needs to be newly added. In this case, it is necessary to update the program for operating the gateway in accordance with the change of the standard.

  Therefore, the present application discloses a technique for providing device information to a server without updating the gateway program when the position of information recorded on the device memory is changed.

  The device management system in one embodiment of the present invention includes a server, a gateway that can communicate with both the server and the device. The device includes a memory including a predetermined provision data area for recording data to be provided to the outside. The server includes a memory that records request property data including information for specifying a position in the provided data area of data requested to the device. The gateway acquires, from the server, a request property data acquisition unit that acquires the request property data from the server, and acquires acquisition property data including information that specifies a position of the data provided by the device in the provided data area An acquisition property data acquisition unit; a data acquisition unit that acquires the data recorded at the position indicated by the request property data and indicated by the acquisition property data from the memory of the device; and the data acquisition A data transmission unit that transmits data acquired by the unit to the server.

  According to the disclosure of the present application, in the device management system, when the position of information recorded on the device memory is changed, the device information can be provided to the server without updating the gateway program. It becomes possible.

It is a figure which shows the structural example of the apparatus management system in Embodiment 1. FIG. It is a figure which shows the modification of the apparatus management system shown in FIG. It is a table | surface which shows an example of the property recorded on a provision data area. It is a table | surface which shows the correspondence of the position in a provision data area | region, and the bit in a bitmap. It is a sequence diagram which shows the operation example of an apparatus management system. It is a figure which shows the example of application of the apparatus management system shown in FIG.

  The device management system in one embodiment of the present invention includes a server, a gateway that can communicate with both the server and the device. The device includes a memory including a predetermined provision data area for recording data to be provided to the outside. The server includes a memory that records request property data including information for specifying a position in the provided data area of data requested to the device. The gateway acquires, from the server, a request property data acquisition unit that acquires the request property data from the server, and acquires acquisition property data including information that specifies a position of the data provided by the device in the provided data area An acquisition property data acquisition unit; a data acquisition unit that acquires the data recorded at the position indicated by the request property data and indicated by the acquisition property data from the memory of the device; and the data acquisition A data transmission unit that transmits data acquired by the unit to the server.

  In the device management system, device information is recorded in a predetermined provided data area of the device memory. The gateway acquires data from the provided data area and transmits it to the server. In this configuration, what information is recorded at which position in the provided data area of the memory of the device may be determined in advance by a standard. In this case, the gateway can acquire necessary information by reading out data at a position defined by the standard of the provided data area of the device memory, and can provide the information to the server.

  A conventional gateway is programmed to read data at a location defined by the standard in the provided data area. Here, for example, when it is necessary to increase the information provided by the device, the standard may be revised and new information data may be added to a new position in the provided data area. As described above, the standard indicating the position of information recorded in the provided data area may be changed. In the conventional gateway, it is necessary to rewrite the program in accordance with such a change in the standard.

  In the device management system configured as described above, the request property data acquisition unit of the gateway acquires the request property data from the server. The request property data includes information for specifying the position of the data requested by the server for the device in the data area provided in the memory of the device. The acquisition property data acquisition unit of the gateway acquires acquisition property data from the device. The acquired property data includes information for specifying in which position in the provided data area the data provided by the device is located. The data acquisition unit of the gateway acquires the data recorded at the position indicated by the requested property data and at the position indicated by the acquired property data from the memory of the device. In this configuration, the data that the gateway acquires from the device memory and transmits to the server is determined by the requested property data and the acquired property data. For example, when the standard is changed and the arrangement of information in the provided data area of the device memory is changed, it can be dealt with by updating the acquired property data and / or the requested property data. Therefore, it is not necessary to change the program that operates the gateway. That is, when the standard indicating the position of information recorded on the memory of the device is changed, the device information can be provided to the server without updating the gateway program.

  Note that the change in the arrangement of information in the provided data area of the device memory is not limited to a change in standard. For example, the manufacturer that provides the device may be different from the manufacturer that provides the gateway. Even if the manufacturer of the device changes the information arrangement in the data area provided in the memory of the device without notifying the manufacturer of the gateway, it is possible to cope without changing the program of the gateway. Even in the same category of equipment, the arrangement of information in the provided data area of the memory of the equipment may differ for each manufacturer. This case can also be handled without updating the gateway program.

  In the device management system, the data acquisition unit of the gateway acquires data recorded at a position indicated by the acquired property data, and further extracts data at a position indicated by the request property data from the acquired data. It may be configured as follows. In this case, the data transmission unit transmits the data extracted by the data acquisition unit to the server.

  In the device management system, the data acquisition unit of the gateway may be configured to access the memory of the device and acquire data at a position indicated by both the acquisition property data and the acquisition property data. Good. In this case, the data transmission unit transmits the data acquired by the data acquisition unit to the server.

  In the device management system, the gateway may include a memory that records the requested property data acquired from the server. In this case, the gateway acquires the data recorded at the position indicated by the request property data recorded in the memory of the gateway and at the position indicated by the acquired property data from the memory of the device. can do. This eliminates the need for the gateway to acquire the requested property data from the server every time data is acquired from the device. Request property data transmission processing from the server to the gateway can be reduced.

  In the device management system, the gateway receives update information of the request property data from the server and updates the request property data recorded in the memory of the gateway based on the received update information. May be. As a result, the request property data held by the gateway can be updated in response to reception of update information from the server. The server can update the request property data held in the gateway at a desired timing.

  In the device management system, the gateway requests update information of the request property data from the server, and is recorded in the memory of the gateway based on the update information transmitted by the server in response to the request. The request property data may be updated. Thereby, the request property data held by the gateway can be updated in response to a request from the gateway to the server. The gateway can update the request property data held by the gateway at a desired timing.

  In the device management system, the update information may include time information indicating an update time. The gateway can update the request property data recorded in the memory of the gateway at a time indicated by the time information. That is, the gateway can execute a process of acquiring data from the device using the updated request property data when the time indicating the time information comes.

  Thereby, the gateway can update the requested property data in the memory at the timing when the time indicated by the time information of the update information has arrived. The time information may be information indicating the date and time of update, for example. In this case, the gateway updates the requested property data when the date and time indicated by the time information arrives. Thereby, the update timing of the request property data in the gateway can be controlled. For example, when the standard is changed from what date, it is possible to simultaneously cope with each gateway from the date when the standard is changed. Alternatively, the request property of each gateway can be updated in advance before the standard is changed.

  The time information may be information indicating the hour and minute in addition to or instead of the date and time. Further, the information included in the update information is not limited to the time information. For example, information indicating that the requested property data has been updated in the server, information indicating an update content of the requested property data, or the like may be included in the update information. In this case, the gateway can update the requested property data in the memory with the content indicated by the update information. The update information may be updated request property data.

  In the device management system, the gateway receives a control instruction for the device from the server, and updates the data in the memory of the device based on the control instruction, thereby controlling the device. A part may be further provided. Thus, the server can control the device via the gateway.

  For example, the gateway can control the state or operation of the device by updating data at a predetermined position in the provided data area of the memory of the device. In this case, the gateway can receive, as a control instruction from the server, data indicating a target position in the provided data area and control property data indicating the content of data to be written in the target position.

  The gateway in the device management system is also included in the embodiment of the present invention. Also included in the embodiments of the present invention are a gateway program for causing the gateway to execute processing for realizing the above functions, and a gateway operating method for realizing the above functions.

  A server in the device management system is also included in the embodiment of the present invention. In addition, a server program for causing a server to execute processing for realizing the above function and a server operation method for realizing the above function are also included in the embodiments of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. In addition, in order to make the explanation easy to understand, in the drawings referred to below, the configuration is shown in a simplified or schematic manner, or some components are omitted. Further, the dimensional ratio between the constituent members shown in each drawing does not necessarily indicate an actual dimensional ratio.

[Embodiment]
(System configuration example)
FIG. 1 is a diagram illustrating a configuration example of a device management system according to the first embodiment. The device management system 1 includes a server 2 and a gateway 3. The server 2 and the gateway 3 can communicate with each other via the network N. The gateway 3 can communicate with a plurality of devices 4a to 4c. The server 2 acquires information from the devices 4 a to 4 c through the gateway 3. Thereby, the server 2 can acquire information for managing the devices 4a to 4c from the devices 4a to 4c. Hereinafter, when the devices 4a to 4f are not particularly distinguished, they are collectively referred to as a device 4.

  The gateway 3 and the device 4 communicate with each other based on a predetermined communication standard (communication method). The communication method between the gateway 3 and the devices 4a to 4c and the communication method between the gateway 3 and the server 2 may be different.

  The device 4 has a memory 41. The memory 41 includes a predetermined provision data area for recording data to be provided to the outside. The memory 41 includes a predetermined provision data area. This provided data area is an area for recording data to be provided to the outside. The gateway 3 can access the provided data area of the memory 41 of the device 4. Thereby, the information of the data recorded in the provided data area is shared with the external devices such as the gateway 3 and the server 2. In the provided data area, what information data is recorded at which position is determined by the standard. This standard may be a communication standard between the gateway 3 and the device 4, for example.

  The gateway 3 designates a position in the provided data area, and requests the device 4 for data at the designated position. Thereby, the gateway 3 can acquire the data at the designated position from the provided data area of the memory 41 of the device 4. The gateway 3 transmits data acquired from the device 4 to the server 2. The gateway 3 can acquire data from the device 4 and transmit it to the server 2 when the request for the data of the device 4 is received from the server 2. Alternatively, the gateway 3 can periodically acquire data from the device 4 and transmit it to the server 2.

  In the example illustrated in FIG. 1, the gateway 3 includes a request property data acquisition unit 31, an acquisition property data acquisition unit 32, a data acquisition unit 33, a data transmission unit 34, and a memory 35.

  The request property data acquisition unit 31 acquires request property data from the server 2. The requested property data is recorded in the memory 21 of the server 2. The request property data is data for specifying data that the server 2 requests from the device 4. Specifically, the requested property data includes information indicating where the data requested by the server 2 is located in the provided data area of the memory 41 of the device 4. For example, the request property data includes information that directly or indirectly indicates one or more addresses in the provided data area. In this case, for example, data of one or a plurality of addresses indicated by the request property data is read from the provided data area and transmitted to the server 2 via the gateway 3.

  The acquired property data acquisition unit 32 acquires acquired property data from the device 4. Acquired property data is recorded in the memory 41 of the device 4. The acquired property data is data for specifying data that the device 4 can provide to an external device such as the server 2. Specifically, the acquired property data includes information indicating where the data that can be provided to the external device is located in the provided data area of the memory 41 of the device 4. For example, the acquired property data includes information that directly or indirectly indicates one or more addresses in the provided data area. In this case, for example, the gateway 3 can acquire the data of one or more addresses indicated by the acquired property data from the device 4.

  The data acquisition unit 33 acquires data from the provided data area of the memory 41 of the device 4 based on the requested property data and the acquired property data. Specifically, the data recorded at the position in the provided data area indicated by the requested property data and at the position in the provided data area indicated by the provided property data is acquired. The gateway 3 acquires the data recorded at the position indicated by both the requested property data and the acquired property data from the device 4.

  In the example of FIG. 1, for easy understanding, the provided data area is simplified and expressed in a matrix of 4 rows and 4 columns. Further, the request property data and the acquired property data indicate the positions in this matrix by circles and triangles, respectively. That is, the circles in the requested property data and the triangles in the acquired property data in FIG. 1 indicate the positions in the provided data area, respectively. The same applies to FIG.

  In the example illustrated in FIG. 1, the data acquisition unit 33 of the gateway 3 acquires the data at the position indicated by the acquisition property data acquired from the device 4a from the provided data area of the memory 41 of the device 4a. For example, for example, the data acquisition unit 33 requests the device 4a for data at a position indicated by the acquisition property data. The data acquisition unit 33 extracts the data at the position indicated by the requested property data from the data acquired from the provided data area as data to be transmitted to the server 2. For example, the data acquisition unit 33 compares the requested property data with the acquired property data to determine the position indicated by the requested property data and the position indicated by the acquired property data. The data acquisition unit 33 extracts the data at the determined position from the data acquired from the provided data area.

  In the memory 35 of FIG. 1, the data indicated by the position indicated by both the requested property data and the acquired property data, that is, the position where the circle mark and the triangle mark overlap is extracted. The data transmission unit 34 transmits the extracted data to the server 2. As described above, in the example illustrated in FIG. 1, all of the data at the position indicated by the acquired property data is transmitted from the device 4 a to the gateway 3. Of the data transmitted to the gateway 3, the data at the position indicated by the request property data is transmitted to the server 2.

  FIG. 2 is a diagram illustrating a modification of the data acquisition unit 33 illustrated in FIG. In the example illustrated in FIG. 2, the data acquisition unit 33 accesses the memory 41 of the device 4 a and moves from the provided data area to the position indicated by both the requested property data and the acquired property data, that is, the position where the circle mark and the triangle mark overlap. Get some data. As a specific example, the data acquisition unit 33 requests the device 4a for data at a position indicated by both the requested property data and the acquired property data. For example, the data acquisition unit 33 compares the requested property data with the acquired property data to determine the position indicated by the requested property data and the position indicated by the acquired property data. The data acquisition unit 33 requests the data of the determined position from the device 4a. For example, the data acquisition unit 33 transmits request data including information specifying the determined position in the provided data area to the device 4a.

  The device 4 reads the data at the position indicating the requested property data and the acquired property data in the provided data area of the memory 41 and transmits the data to the gateway 3. The data transmission unit 34 of the gateway 3 transmits the data received by the gateway 3 from the device 4 a to the server 2. As described above, in the example illustrated in FIG. 2, the data at the position indicated by both the acquired property data and the requested property data is transmitted from the device 4 a to the gateway 3. The data transmitted to the gateway 3 is transmitted to the server 2.

  The data format of the provided data area transmitted from the device 4a to the gateway 3 and the data format of the provided data area transmitted from the gateway 3 to the server 2 may be different. For example, the format of these data can be a format according to the communication standard between the device 4a and the gateway 3 and the communication standard between the gateway 3 and the server 2. In this case, the gateway 3 can convert the data acquired from the provided data area of the memory 41 of the device 4 a into a format according to the communication standard between the server 2 and the gateway 3 and transmit the data to the server 2.

(Example of data format)
Next, an example of the expression format of the requested property data and the acquired property data will be described with reference to FIGS. 3 and 4. FIG. 3 is a table showing data items recorded in the provision data area of the memory 41 of the device 4a, the positions (addresses) of the data items in the provision data area, and the bit positions in the property map. In this example, the requested property data and the acquired property data are represented by a bitmap called a property map. FIG. 4 is a table showing the correspondence between the position (address) in the provided data area of the memory 41 of the device 4a and the bit in the bitmap. Hereinafter, the data items shown in FIG. 3 are referred to as properties.

  Each of the data items in FIG. 3 corresponds to a circle in the property map shown in FIG. The property list shown in FIG. 3 is a list of data items provided externally by the device 4a. Each of these properties is associated with the position (address) of the provided data area. For example, in the table of FIG. Property 1 is data indicating the “operation state” of the device 4a, and is recorded at a position indicated by an address “0x50” in the provided data area. The presence of a property at the address “0x50” is expressed by setting bit 3 of the second byte to “1” in the property map shown in FIG. Thus, in the property map, “1” indicates that there is a property and “0” indicates that there is no property. For example, in the property map of the acquired property, if bit 3 of the second byte is “1”, data including information provided to the outside by the device 4a is recorded at the address “0x50” of the provided data area. Show. In the request property map, if bit 3 of the second byte is “1”, this indicates that the server 2 is requesting data at the address “0x50” in the provided data area.

  The bit string of the second byte in FIG. 4 is “00001011” in binary number, and “0B” in hexadecimal number. Therefore, in the bit string of the second byte in FIG. 4, the description format of the request property data and the acquired property data can be, for example, “0x0B”. In this case, in the example shown in FIG. 4, the description format of the property map is “0x16, 0x0B, 0x01, 0x09, 0x00, 0x01, 0x01, 0x03, 0x03”. Here, the first byte omitted in FIG. 4 is set to “0x16”. As described above, the requested property data and the acquired property data can be expressed by an example of bits indicating the property map.

  As in the above example, the data format of the requested property data and the data format of the acquired property data can be made the same. Thereby, the comparison process between the requested property data and the acquired property data in the gateway 3 can be simplified.

  In the above example, the property data is the information at each position, that is, the data indicating the presence or absence of the property, depending on whether the bit corresponding to the address of each position in the provided data area is 1 or 0. Note that the data formats of the requested property data and the acquired property data are not limited to specific ones. For example, in the example shown in FIG. 4, the property map is represented by an 8-byte bit string. However, the property map is not limited to 8 bytes, and may be 16 bytes or any other number of bytes. In addition to the property map, the property data may include other information such as the number of properties and update information related to property map updates.

(Operation example)
FIG. 5 is a sequence diagram illustrating an operation example of the device management system. FIG. 5 shows an example in which the gateway 3 transmits data collected from the device 4 a to the server 2. The gateway 3 downloads the requested property data from the server 2 in advance (S1). This download of S1 may be executed in response to an update request from the server 2, or may be executed in response to an inquiry from the gateway 3.

  Further, the gateway 3 may receive update information including time information indicating the time of update from the server 2. In this case, the gateway 3 downloads the requested property data from the server 2 when the time indicated by the time information has arrived. Note that the gateway 3 may download data indicating the updated portion of the requested property data from the server 2 as update information. Further, the gateway 3 may record the updated request property data and the time information in association with each other. In this case, when the time indicated by the time information has arrived, the gateway 3 can operate using the updated request property data. Thereby, the update time of the request property data used for processing in the gateway 3 is controlled using the update information provided from the server 2.

  The gateway 3 acquires provided property data from the device 4a (S2). The acquisition process of S2 may be executed in response to an update request from the device 4a, or may be executed in response to an acquisition request from the gateway 3.

  The gateway 3 reads out the data at the position indicated by the provided property data acquired in S2 from the provided data area of the device 4a, that is, reads (S3). The read timing of S3 can be set in advance by a parameter or the like, for example. As an example, the gateway 3 can acquire data based on the provided property data from the provided data area of the device 4a periodically at a predetermined cycle. Alternatively, the gateway 3 can also acquire data from the data area provided by the device 4a in response to a request for data from the server 2.

  The gateway 3 refers to the request property data acquired in S1 (S4), and determines data to be transmitted to the server 2 among the data acquired in S3 (S5). For example, the gateway 3 can extract data corresponding to the position indicated by the request property data from the data acquired in S3 as data to be transmitted to the server. The data to be transmitted to the server can be in the form of comma-separated values (CSV), for example, but is not limited to a specific format.

  The gateway 3 transmits the data determined in S5 to the server 2 (S6). The timing of transmission of data to the server 2 can be set in advance by, for example, parameters. As an example, the gateway 3 can transmit the data acquired from the device 4a to the server 2 periodically at a predetermined cycle. Further, the gateway 3 may distribute data to the server 2 in a cycle shorter than a preset cycle. Thereby, the load of the server 2 can be distributed.

  With the operation illustrated in FIG. 5, the server 2 can collect data from the device 4 a via the gateway 3. Thereby, for example, information regarding the operation, state, abnormality, and environment of the device 4a can be provided to the server 2. Here, when the information required by the server changes, or when the position of the data provided by the device 4a in the provided data area is changed or added, the request property data and the provided property data are updated. be able to. Therefore, it is possible to cope with these changes without updating the program (software) of the gateway 3.

  In the example illustrated in FIG. 5, the timings of request property data acquisition (S1), acquisition property data acquisition (S2), and processing from data acquisition to data transmission (S3 to S6) may be independent of each other. For example, the process of acquiring data from the device 4a and transmitting data to the server 2 is not necessarily synchronized with the process of acquiring requested property data and acquired property data.

  The gateway 3 can execute S1 and S2 in advance to acquire the requested property data and the acquired property data and store them in the memory 35. In this case, when the request property data is updated in the server 2, the request property data in the memory 35 of the gateway 3 may be updated in synchronization therewith. Further, when the acquired property data is updated in the device 4a, the acquired property data in the memory 35 of the gateway 3 may be updated in synchronization therewith.

  In the example shown in FIG. 5, in S3, the gateway 3 acquires all data at the position indicated by the acquired property data from the provided data area of the device 4a. As a modified example, in S3, the gateway 3 may acquire data at a position that also indicates the requested property data among the positions indicated by the acquired property data from the provided data area of the device 4a. In this case, the process of S4 is omitted. The gateway 3 converts the data format acquired in S3 as necessary in S5, and transmits it to the server in S6.

  In the above example, the communication between the device 4a, the gateway 3, and the server 2 has been described. However, similar communication can be performed in each of the other devices 4b and 4c. In this case, provided data areas are provided in the memories of the devices 4b and 4c. The gateway 3 acquires acquired property data from each of the devices 4a, 4b, and 4c. Further, the gateway 3 acquires request property data corresponding to each of the devices 4a, 4b, and 4c from the server 2. The gateway 3 can manage individual devices 4a, 4b, and 4c to be communicated by assigning individual identifiers (for example, numbers) to the plurality of devices 4a, 4b, and 4c.

  The gateway 3 may acquire, from the server 2, data indicating information on the target device 4 for which data is requested, in addition to the information indicating the position of the requested data. For example, information regarding the device 4 such as the installation location of the device 4, the version of the standard supported by the device 4, identification information of the device 4, manufacturer information, product information, serial number, and manufacturing date is acquired from the server 2. May be. The information regarding the device 4 may be included in the request property data, or may be included in another data different from the request property data. Further, the update information of the request property data received by the gateway 3 from the server 2 may be included in the request property data, or may be included in another data different from the request property data.

  The gateway 3 may acquire data indicating information on the device 4 from the device 4 in addition to the information indicating the position of the requested data. For example, information regarding the device 4 such as the installation location of the device 4, the version of the standard supported by the device 4, identification information of the device 4, manufacturer information, product information, serial number, date of manufacture, etc. is acquired from the device 4. May be. The information regarding the device 4 may be included in the acquired property data, or may be included in another data different from the acquired property data.

  In the above configuration, the gateway 3 can control the device 4 based on a control instruction from the server 2. In this case, the gateway 3 receives a control instruction for the device 4 from the server 2. The control instruction includes, for example, information for specifying a position in the provided data area of the memory 41 of the device 4 and information indicating the content of control. In this case, the gateway 3 updates the data at the position indicated by the control instruction in the provided data area of the memory 41 of the device 4 based on the control instruction. The gateway 3 may include a device control unit that updates data in the memory 41 of the device 4 based on a control instruction from the server 2.

  The gateway 3 may acquire setting property data specifying the location of data that can be updated in the provided data area from the device 4. In this case, for example, the gateway 3 updates the data at the position indicated by the control information received from the server 2 and the position indicated by the setting property in the provided data area of the memory 41 of the device 4. 4 can be controlled. That is, the gateway 3 may control the device 4 by updating the data in the provided data area at the position indicated by both the setting property data and the control instruction. Note that, in the memory 41 of the device 4, an area in which data for controlling the device 4 is recorded may be an area different from the provided data area.

(System configuration example)
FIG. 6 is a diagram illustrating an application example of the device management system 1 illustrated in FIG. 1 or 2. In the example shown in FIG. 6, the gateway 3 is connected to the Internet N <b> 1 via the router 5. A server 2 is connected to the Internet N1. The server 2 and the gateway 3 can communicate with each other via the Internet N1 and the router 5. The router 5 and the gateway 3 are connected via, for example, a local area network (LAN). Devices such as the power conditioner 6 and the user terminal 8 connected to the solar panel 7 are connected to the LAN. For example, the router 5, the gateway 3, and the power conditioner 6 are connected by wire. The router 5 and the user terminal 8 are connected wirelessly. For wired communication in the LAN, for example, a communication standard such as Ethernet can be used. For wireless communication in the LAN, for example, a communication standard such as WiFi can be used.

  In the example shown in FIG. 6, the gateway 3 can communicate with devices such as the smart meter 4d and the multi-sensor 4e. The gateway 3 and these devices 4d and 4e are connected by radio, for example. For communication between the gateway 3 and these devices 4d and 4e, for example, a communication standard such as Wireless Smart Utility Network (Wi-SUN) can be used. For example, ECHONET Lite or the like can be used as a communication standard for the upper layer of the Wi-SUN. In addition, as a communication standard of communication between the gateway 3 and the apparatus 4, it is not restricted to the said example, For example, SEP2.0 (Smart Energy Profile2.0), KNX etc. may be used.

  As shown in FIG. 6, a HEMS that manages a plurality of devices can be constructed using the server 2 and the gateway 3. That is, FIG. 6 can be said to be an example in which the device management system 1 is applied to HEMS. The form of HEMS is not limited to the example shown in FIG. For example, the HEMS may be a system that monitors the power supply amounts of a plurality of devices that receive power supply from the grid power grid, solar cells, and power storage system in a house, and controls these devices. In addition to HEMS, the device management system 1 shown in FIG. 1 can be applied to other energy management systems such as BEMS (Building Energy Management System) and FEMS (Factory Energy Management System).

1 Device management system 2 Server 3 Gateway

Claims (14)

Server,
The server and a gateway capable of communicating with both devices,
The device has a memory including a predetermined provision data area for recording data to be provided to the outside,
The server includes a memory for recording request property data including information for specifying a position in the provided data area of data requested to the device,
The gateway is
A request property data acquisition unit for acquiring the request property data from the server;
An acquisition property data acquisition unit that acquires acquisition property data including information for specifying a position in the provided data area of data provided by the device from the device;
A data acquisition unit that acquires the data recorded at the position indicated by the requested property data and at the position indicated by the acquired property data from the memory of the device;
A device management system comprising: a data transmission unit that transmits data acquired by the data acquisition unit to the server. The device management system according to claim 1,
The device management system, wherein the data acquisition unit of the gateway acquires data recorded at a position indicated by the acquisition property data, and further extracts data at a position indicated by the request property data from the acquired data. The device management system according to claim 1,
The device management system, wherein the data acquisition unit of the gateway accesses the memory of the device and acquires data at a position indicated by both the acquired property data and the acquired property data. The device management system according to any one of claims 1 to 3,
The gateway has a memory for recording the request property data acquired from the server,
The gateway acquires the data recorded at the position indicated by the request property data recorded in the memory of the gateway and at the position indicated by the acquired property data from the memory of the device. Management system. The device management system according to claim 4,
The gateway receives the update information of the request property data from the server, and updates the request property data recorded in the memory of the gateway based on the received update information. The device management system according to claim 4 or 5,
The gateway requests update information of the request property data from the server, and updates the request property data recorded in the memory of the gateway based on the update information transmitted by the server in response to the request. A device management system. It is an equipment management system given in any 1 paragraph of Claims 4-6,
The update information includes time information indicating the time of update,
The gateway updates the request property data recorded in the memory of the gateway at a time indicated by the time information. The device management system according to any one of claims 1 to 7,
The gateway is a device management system that receives a control instruction for the device from the server and controls the device by updating data in the memory of the device based on the control instruction. A gateway having a memory including a predetermined provision data area for recording data to be provided to the outside, and a gateway capable of communicating with both of the servers,
A request property data acquisition unit that acquires request property data including information for specifying a position in the provided data area of data requested to the device from the server;
An acquisition property data acquisition unit that acquires acquisition property data including information for specifying a position in the provided data area of data provided by the device from the device;
A data acquisition unit that acquires the data recorded at the position indicated by the requested property data and at the position indicated by the acquired property data from the memory of the device;
A data transmission unit that transmits data acquired by the data acquisition unit to the server. A gateway program that causes a computer that can communicate with both a device including a memory including a predetermined provision data area for recording data to be provided to the outside, and a server,
Request property data acquisition processing for acquiring request property data including information for specifying a position in the provided data area of data requested to the device from the server;
Acquisition property data acquisition processing for acquiring acquisition property data including information for specifying a position in the provided data area of data provided by the device from the device;
Data acquisition processing for acquiring the data recorded at the position indicated by the requested property data and at the position indicated by the acquisition property data from the memory of the device;
A gateway program that causes a computer to execute data transmission processing for transmitting data acquired in the data acquisition processing to the server. The gateway program according to claim 10,
The gateway program which makes a computer perform further the process which updates the said request property data recorded on the said memory of the said gateway based on the update information of the said request property data received from the said server. A device having a memory including a predetermined provision data area for recording data to be provided to the outside, and a gateway operating method capable of communicating with both the server,
The gateway acquires request property data from the server to acquire request property data including information for specifying a position in the provided data area of data requested to the device; and
An acquisition property data acquisition step in which the gateway acquires, from the device, acquisition property data including information for specifying a position in the provided data area of data provided by the device;
A data acquisition step in which the gateway acquires the data recorded at the position indicated by the request property data and at the position indicated by the acquisition property data from the memory of the device;
A data transmission step in which the gateway transmits the data acquired in the data acquisition process to the server. A method for operating a gateway according to claim 12, comprising:
Receiving update information of the requested property data from the server;
Updating the requested property data recorded in the memory of the gateway based on the received update information. A server capable of communicating with a device having a memory including a predetermined provision data area for recording data to be provided to the outside via a gateway,
The memory of the device further records acquisition property data including information for specifying a position where data provided by the device is recorded in the provided data area,
The server
A memory for recording requested property data including information for specifying a position in the provided data area of data requested to the device;
A request property data supply unit for supplying the request property data to the gateway;
The gateway receives, from the gateway, data acquired from the memory of the device at the position indicated by the requested property data and the data recorded at the position indicated by the acquired property data from the device. A data receiving unit.

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