JP6031377B2 - Equipment monitoring system, monitoring device and electrical equipment - Google Patents

Description

  The present invention relates to a system for monitoring the operation of an electrically controllable device.

  In recent years, in the home energy management system (hereinafter, HEMS) technology, not only the so-called “visualization” of the electric energy, but also the HEMS-GW, the remote control server, using that information to efficiently adjust the electric energy. Systems that automatically control the energy of home appliances using remote management servers (hereinafter collectively referred to as energy control devices) have begun to be introduced. Further, a system for remotely controlling home appliances from a mobile phone or a tablet terminal via the Internet has begun to be introduced on a trial basis (see, for example, Patent Documents 1 and 2).

JP 2011-254229 A Japanese Patent No. 4455170

  In systems via the Internet, there are always threats related to Internet security. In the conventional technology, measures are taken with firewalls on networks and security software on personal computers, but new approaches, hijacking or new viruses are rampant one after another, and no complete measures exist.

  Even in a system that uses HEMS technology to control the amount of power of home appliances via the Internet, there are threats related to Internet security such as unauthorized access to the energy control device from the Internet, hijacking, and viruses. In the control from home appliances to home appliances, there is a risk that normal control cannot be performed, the power supply of the home appliances suddenly goes down, the malfunction of the home appliances becomes faster or slower, or a runaway operation occurs Has become an issue.

  In order to solve the above-described problems, the present invention provides an equipment monitoring system including an electrical device connected to a network and a monitoring device connected to the network, and the electrical device is connected to the network. A first interface connected to the first interface, and a first memory connected to the first processor, wherein the first memory stores identification information of the monitoring device. The monitoring device has a second interface connected to the network, a second processor connected to the second interface, and a second memory connected to the second processor, The second memory holds appropriate index information indicating appropriate control information for controlling the electric device, and the electric device receives the input control information. Is transmitted from the monitoring device, and if the input control information is transmitted from the monitoring device, the operation of the electric device is performed according to the input control information. And when the input control information is not transmitted from the monitoring device, the input control information is transmitted to the monitoring device via the network according to the identification information of the monitoring device, and the monitoring When the apparatus receives the control information from the electrical device, the apparatus determines whether the received control information is appropriate based on the appropriate index information, and if the received control information is appropriate, The received control information is transmitted to the electrical device, and when the received control information is not appropriate, the received control information is not transmitted to the electrical device.

  According to one embodiment of the present invention, it is possible to prevent inappropriate operation of home appliances.

It is a block diagram which shows the outline of a structure of the apparatus monitoring system of Example 1 of this invention. It is a block diagram which shows the hardware constitutions of the appropriate operation | movement monitoring apparatus of Example 1 of this invention. It is a block diagram which shows the hardware constitutions of the household appliances of Example 1 of this invention. It is a sequence diagram of the appropriate operation monitoring process performed in the apparatus monitoring system of Example 1 of this invention. It is explanatory drawing of the format of the control information transmitted / received in the apparatus monitoring system of Example 1 of this invention. It is a flowchart of the transfer process which an information origin judgment / transfer part performs, when the household appliances of Example 1 of this invention receive control information. It is explanatory drawing of the user setting appropriate parameter | index table referred when the appropriate operation | movement monitoring apparatus of Example 1 of this invention performs an aptitude determination process. It is a flowchart of the aptitude determination process which the proper operation | movement monitoring apparatus of Example 1 of this invention performs. It is a block diagram which shows the outline of a structure of the apparatus monitoring system of Example 2 of this invention. It is a sequence diagram of the proper operation | movement monitoring process performed in the apparatus monitoring system of Example 2 of this invention.

  FIG. 1 is a block diagram showing an outline of the configuration of the device monitoring system according to the first embodiment of the present invention.

  The device monitoring system of the present embodiment includes a control device 105, a home appliance 106, and a proper operation monitoring device 107 connected to a network.

  The control device 105 is a device that transmits control information for controlling the home appliance 106. This may be an energy control device in HEMS, that is, a device that transmits control information for energy control such as ON / OFF of the power supply of the home appliance 106, but further, control of items other than energy. Control information may be transmitted. The format of the control information to be transmitted will be described later (see FIG. 5).

  The home appliance 106 is a so-called home appliance such as an air conditioner (air conditioner), a television receiver (TV), a refrigerator, a personal computer (PC), a microwave oven, or a lighting fixture. The home appliance 106 is a target of control by the control device 105 and a target of monitoring by the proper operation monitoring device 107. Although only one home appliance 106 is shown in FIG. 1, a plurality of home appliances 106 may actually be connected to the network, controlled by the control device 105, and monitored by the proper operation monitoring device 107.

  Moreover, although the household appliance 106 was shown as an example of the object of control and monitoring in a present Example, this invention is applicable to all the electric devices containing a household appliance. Here, the electrical device to which the present invention can be applied may be a device that uses energy other than electric power (for example, an electronically controlled oil heater) as long as the device can be electrically controlled. Details of the configuration and operation of the home appliance 106 will be described later.

  The proper operation monitoring device 107 determines whether or not the home appliance 106 is going to perform an appropriate operation. Details of the configuration and operation will be described later.

  The network to which the control device 105, the home appliance 106, and the proper operation monitoring device 107 are connected is, for example, an IP (Internet Protocol) network having a layer 2 switch (L2SW) 104 and a home router 103.

  The L2SW 104 has a plurality of ports 117 and transfers data received by each port 117 based on the data of the second layer (layer 2) of the OSI reference model. In the example of FIG. 1, each of the plurality of ports 117 is connected to the home router 103, the control device 105, the home appliance 106, and the proper operation monitoring device 107. Although only one L2SW 104 is shown in FIG. 1, a plurality of L2SWs 104 may actually be used.

  The home router 103 transfers the received data based on the second layer data of the OSI reference model. The home router 103 is connected to the Internet 102. A terminal device 101 is connected to the Internet 102 via a wireless or wired communication channel. The terminal device 101 may be any terminal as long as it is a terminal that can be connected to the control device 105 via the Internet 102, for example, in addition to a mobile phone or a tablet terminal. The flow of information exchanged among the terminal device 101, the control device 105, the home appliance 106, and the proper operation monitoring device 107 will be described later.

  The home router 103, the L2SW 104, the control device 105, the home appliance 106 and the proper operation monitoring device 107 are supplied with power from the power source 109 via the power measuring device / distribution panel 108. The power source 109 may include a solar power generation device or a storage battery installed in each household in addition to the power company.

  Next, the hardware configuration of each unit constituting the device monitoring system of the present embodiment will be described.

  Since the hardware configurations of the terminal device 101, the home router 103, the L2SW 104, and the power measurement device / distribution panel 108 may be the same as those of the conventional one, description thereof is omitted. Moreover, since the hardware configuration of the control apparatus 105 may be the same as that of the energy control apparatus in HEMS, description is abbreviate | omitted.

  FIG. 2 is a block diagram illustrating a hardware configuration of the proper operation monitoring apparatus 107 according to the first embodiment of this invention.

  The proper operation monitoring apparatus 107 according to the present embodiment includes a CPU 201, a LAN (Local Area Network) interface 202, a proper judgment unit 203, a user setting proper index table 204, a control information storage unit 205, and a log / history storage memory that are connected to each other. 206. The CPU 201 is a processor that realizes various functions by controlling each part of the proper operation monitoring device 107 as necessary in accordance with a program stored in a memory connected to the CPU 201. The LAN interface 202 is connected to the port 117 of the L2SW 104 and realizes communication between the proper operation monitoring device 107 and the home appliance 106 and the like.

  The appropriateness determination unit 203 executes appropriateness determination processing described later (see FIG. 8). The appropriateness determination unit 203 may be realized by a dedicated logic circuit or may be realized by a memory that holds a program executed by the CPU 201.

  As will be described later (see FIG. 7), the user setting appropriate index table 204 includes information that is referred to when the appropriateness determination unit 203 executes appropriateness determination processing. The control information storage unit 205 stores the control information received by the proper operation monitoring device 107. The log / history storage memory 206 stores log / history information as a result of the appropriateness determination process executed by the appropriateness determination unit 203.

  The appropriateness determination unit 203, the user setting appropriateness index table 204, the control information storage unit 205, and the log / history storage memory 206 may be realized by a plurality of memory devices that hold each, or a single that holds all of them. The memory device may be realized.

  FIG. 3 is a block diagram illustrating a hardware configuration of the home appliance 106 according to the first embodiment of the present invention.

  The home appliance 106 of the present embodiment includes a CPU 301, a LAN interface 302, an information source determination / transfer unit 303, a home appliance control unit 304, an IP address 305 of the proper operation monitoring device 107, and a control information storage unit 306 that are connected to each other. Have. The CPU 301 is a processor that implements various functions by controlling each part of the home appliance 106 as necessary according to a program stored in a memory connected to the CPU 301. The LAN interface 302 is connected to the port 117 of the L2SW 104, and realizes communication between the home appliance 106 and the proper operation monitoring device 107 or the control device 105.

  As will be described later (see FIG. 6), the information source determination / transfer unit 303 refers to the IP address 305 of the proper operation monitoring device 107 to determine the transmission source of the received control information, and performs control according to the result. Transfer information. The home appliance control unit 304 controls the home appliance 106 according to the control information transferred from the information source determination / transfer unit 303. Each of the information source determination / transfer unit 303 and the home appliance control unit 304 may be realized by a dedicated logic circuit, or may be realized by a memory that stores a program executed by the CPU 201.

  The control information storage unit 306 stores control information received by the home appliance 106. The information source determination / transfer unit 303, the home appliance control unit 304, the IP address 305 and the control information storage unit 306 of the proper operation monitoring device 107 may be realized by a plurality of memory devices that hold each of them, or all of them. May be realized by a single memory device that holds

  FIG. 4 is a sequence diagram of proper operation monitoring processing executed in the device monitoring system according to the first embodiment of the present invention.

  The terminal device 101 accesses the control device 105 via the Internet 102, the home router 103, and the L2SW 104 to perform remote login (step 110), and transmits control information to the home appliance 106 connected to the L2SW 104. The control device 105 is instructed. The control device 105 transmits control information to the home appliance 106 in accordance with an instruction from the terminal device 101 (step 111). The format of the control information to be transmitted will be described later (see FIG. 5).

  The home appliance 106 transmits the control information transmitted from the control device 105 to the proper operation monitoring device 107 connected to the L2SW 104 (step 112). Details of the processing executed by the home appliance 106 at this time will be described later (see FIG. 6). The proper operation monitoring device 107 performs a determination (appropriateness determination) as to whether or not the received control information matches a preset index (step 401), whereby the control information transmitted from the control device 105 is obtained. Determine whether it is appropriate. Details of the appropriateness determination in step 401 will be described later (see FIGS. 7 and 8).

  If the result of the determination in step 401 is appropriate, the proper operation monitoring device 107 transmits the appropriateness determination result to the home appliance 106 (step 113). The appropriateness determination result transmitted here includes the content of the control information received by the appropriate operation monitoring device 107. On the other hand, if the result of the determination in step 401 is inappropriate, the proper operation monitoring apparatus 107 does not execute step 113 but transmits a shutdown command to the L2SW 104 (step 114). The L2SW 104 that has received the shutdown command shuts down the port 117 to which the control device 105 is connected, and blocks all communication between the control device 105 and the rest. Further, the proper operation monitoring device 107 transmits a suitability determination result to the terminal device 101 (step 115). This appropriate determination result includes information indicating that it is determined that the control of the home appliance 106 instructed by the terminal device 101 is inappropriate.

  The reason why the control device 105 transmits inappropriate control information is that a legitimate user of the home appliance 106 tried to perform an incorrect operation, and that a non-legitimate user illegally accessed the control device 105. There may be an attempt to perform an operation, or the control device 105 has runaway due to virus infection or the like. As described above, since there is a possibility that the control device 105 itself has a problem, as described above, when the control information is determined to be inappropriate, the port 117 to which the control device 105 is connected is shut down. Thus, the home appliance 106 is protected from control information from the control device 105 thereafter.

  When the control information is inappropriate, the appropriate determination result is transmitted to the terminal device 101, so that the user of the terminal device 101 can immediately know that an inappropriate operation has been attempted. When the user identifies the cause of inappropriate control information and confirms that the cause has been resolved, the user can cancel the shutdown of the port 117.

  The memory of the proper operation monitoring device 107 holds the identification information (for example, IP address or MAC address) of the control device 105 or the identification information of the port 117 of the L2SW 104 to which the control device 105 is connected. Information may be transmitted to the L2SW 104. Furthermore, the memory (for example, the user setting appropriate index table 204) of the appropriate operation monitoring device 107 stores identification information (for example, an IP address, a telephone number, or an e-mail address) of the terminal device 101 used by the user who manages the home appliance 106. In step 115, the determination result may be transmitted with the identification information as a destination. As a result, even if an unauthorized user tries to operate the home appliance 106, the appropriate determination result is transmitted to a legitimate manager.

  Alternatively, the control information received by the proper operation monitoring device 107 may include the identification information of the port 117 of the L2SW 104 to which the control device 105 is connected and the identification information of the terminal device 101 that is the transmission source of the control information. An example of this will be described later with reference to FIG.

  FIG. 5 is an explanatory diagram of a format of control information transmitted / received in the device monitoring system according to the first embodiment of this invention.

  The control information includes an IP header 501, an operation parameter unit 502, and a user setting unit 503. The IP header 501 identifies the home appliance 106 or the control device 105 that is the transmission source of the control information. In the present embodiment, an example is shown in which an IP address is used as information for identifying the home appliance 106 or the like. For example, the IP header 501 of the control information transmitted in step 111 includes the IP address of the control device 105 that is the transmission source, and the IP header 501 of the control information transmitted in step 112 is the home appliance 106 that is the transmission source. IP address. However, information other than the IP address (for example, a MAC (Media Access Control) address) may be used as information for identifying the transmission source of the control information.

  The operation parameter unit 502 identifies the operation content of the control of the home appliance 106. The user setting unit 503 identifies a set value for controlling the home appliance 106.

  The format of the appropriateness determination result (that is, control information) transmitted in step 113 may be the same as that shown in FIG. However, the IP header 501 includes the IP address 305 of the proper operation monitoring apparatus 107 that is the transmission source.

  Note that the control information transmitted in step 111 may further include identification information (for example, an IP address, a telephone number, or an e-mail address) of the terminal device 101 that has instructed control of the home appliance 106, and is transmitted in step 112. The control information to be processed may further include the identification information of the terminal device 101 and the identification information of the control device 105. In that case, the appropriate operation monitoring device 107 transmits the appropriate determination result using the identification information of the terminal device 101 included in the received control information (step 115), and the identification information of the control device 105 included in the received control information. Can be sent to the L2SW 104 (step 114).

  FIG. 6 is a flowchart of the transfer process executed by the information source determination / transfer unit 303 when the home appliance 106 according to the first embodiment of the present invention receives control information.

  When the home appliance 106 receives the control information (step 601), the information source determination / transfer unit 303 obtains the transmission source IP address from the IP header 501 of the received control information (step 602), and the IP address operates properly. It is determined whether or not the IP address 305 of the monitoring device 107 is the same (step 603).

  If the acquired transmission source IP address is not the same as the IP address 305 of the proper operation monitoring device 107, the control information received by the home appliance 106 is not transmitted from the proper operation monitoring device 107 (for example, in step 111 of FIG. 4). Therefore, the information source determination / transfer unit 303 changes the transmission source IP address included in the IP header 501 of the received control information to the IP address of the home appliance 106 and sets the control information appropriately. It transmits to the operation | movement monitoring apparatus 107 (step 604).

  When the acquired transmission source IP address is the same as the IP address 305 of the proper operation monitoring device 107, the control information received by the home appliance 106 is the one transmitted from the proper operation monitoring device 107 (for example, step in FIG. 4). Therefore, the information source determination / transfer unit 303 sends the received control information to the home appliance control unit 304 (step 605).

  FIG. 7 is an explanatory diagram of the user setting appropriate index table 204 that is referred to when the appropriate operation monitoring apparatus 107 according to the first embodiment of this invention executes the appropriateness determination process.

  The user setting appropriate index table 204 includes, as elements for executing aptitude determination processing, a home appliance 701 indicating the type of the home appliance 106 to be monitored, an IP address 702 of the home appliance, an operation parameter 703, and user setting information 704. .

  The home appliance 701 is the name of the home appliance 106 to be monitored, and may include information indicating the type. Although FIG. 1 shows only one home appliance 106, FIG. 7 shows an example in which there are a plurality of remotely controllable home appliances 106 and they are registered in the user setting appropriate indicator table 204. The home appliance IP address 702 is an IP address for identifying each home appliance 106 and is used to determine the home appliance 106 that is the transmission source of the control information received by the proper operation monitoring device 107.

  The operation parameter 703 indicates an item of control information to be determined as to whether it is appropriate, and the user setting information 704 indicates an index for determining whether the control information is appropriate.

  The user of each household electrical appliance 106 has the items of operation for each household electrical appliance 106 for the purpose of suppressing power consumption, risk, or ensuring convenience / comfort due to the use of each household electrical appliance 106. An index for determining whether or not the operation resulting from the operation is appropriate can be determined, and these can be set as the operation parameter 703 and the user setting information 704.

  For example, in the user setting appropriate index table 204 shown in FIG. 7, “temperature adjustment” and “power ON / OFF” are registered as the operation parameters 703 of the refrigerator, and “0 to 0” as the user setting information 704 corresponding thereto, respectively. "5" and "NG" are registered. In this case, the control information for setting the refrigerator temperature within the range from 0 degrees to 5 degrees is appropriate, and the control information for setting the refrigerator temperature outside the range from 0 degrees to 5 degrees and the refrigerator is turned on. Or, it means that the control information to be turned off is inappropriate.

  FIG. 8 is a flowchart of aptitude determination processing executed by the proper operation monitoring apparatus 107 according to the first embodiment of this invention.

  When the proper operation monitoring device 107 receives the control information (step 801), the appropriateness determination unit 203 acquires the IP address of the transmission source from the IP header 501 of the control information (step 802). Next, the proper operation monitoring apparatus 107 determines whether or not the acquired IP address is registered in the home appliance IP address 702 of the user setting appropriate index table 204 (step 803).

  When the corresponding IP address is not registered in the user setting appropriate index table 204, the home appliance 106 that has transmitted the control information is not the target of monitoring by the proper operation monitoring device 107. For this reason, the proper operation monitoring device 107 transmits the suitability determination result to the terminal device 101 (step 806). On the other hand, when the corresponding IP address is registered in the user setting appropriate index table 204, the appropriateness determination unit 203 acquires the contents of the operation parameter unit 502 and the user setting unit 503 included in the control information (step 804), These are compared with the contents of the operation parameter 703 and user setting information 704 corresponding to the corresponding IP address, and it is determined whether or not the control information is appropriate (step 805).

  For example, the home appliance 106 is a refrigerator, its identification information (IP address in this embodiment) is “192.168.100.4”, and the temperature is set within a range of 0 to 5 degrees from the refrigerator. When the control information to be transmitted is transmitted, it is determined that the control information is appropriate. When the control information for turning on or off the power is transmitted, the control information is determined to be inappropriate. (See FIG. 7).

  If it is determined in step 805 that the control information is appropriate, the proper operation monitoring device 107 transmits a suitability determination result to the home appliance 106 (step 807). This corresponds to step 113 in FIG. Specifically, the proper operation monitoring device 107 changes the transmission source IP address included in the IP header 501 of the received control information to the IP address of the proper operation monitoring device 107, and receives the changed control information. It transmits to the household appliance 106 which is a transmission source of control information.

  If it is determined in step 805 that the control information is inappropriate, the proper operation monitoring device 107 transmits a suitability determination result to the terminal device 101 (step 806). This corresponds to step 115 in FIG. As described with reference to FIG. 4, when the appropriate operation monitoring apparatus 107 determines that the control information is inappropriate, it further transmits a shutdown instruction for the port 117 to the L2SW 104 (step 114).

  In the first embodiment described above, an example in which the home appliance 106 receives the control information transmitted from the control device 105 has been described. However, the present invention is also applied when the home appliance 106 is controlled by other methods. Can do. For example, the terminal device 101 may directly transmit control information as illustrated in FIG. Even in that case, the home appliance 106 transmits the received control information to the proper operation monitoring device 107. Alternatively, the home appliance 106 is operated using an input unit (not shown) such as a button on the main body of the home appliance 106 or a remote control device (not shown) dedicated to the home appliance 106 (in other words, the input device or the remote control). When the control information is input from the device), the home appliance 106 transmits control information (see FIG. 5) indicating the performed operation to the proper operation monitoring device 107. In any case, the home appliance 106 operates according to the appropriateness determination result (step 113) received from the appropriate operation monitoring device 107.

  According to the first embodiment of the present invention described above, a system including the home appliance 106 (that is, the electric device to be controlled) and the devices that control it (the controlling side, the control device 105 in the first embodiment). In FIG. 5, a device or system (a proper operation monitoring device 107 in the first embodiment) having a third-party viewpoint different from them determines whether the control content is appropriate. In addition, when the appropriateness determination result is inappropriate, the proper operation monitoring device 107 shuts down the LAN port connected to the control device 105 and sends the inappropriate content to the remote user by e-mail or the like. Notification is made by communication means.

  As a result, for example, when control via the Internet 102 is performed from the terminal device 101 using the HEMS technology, it is determined whether the control information from the control device 105 is normal regardless of the security threat of the Internet 102. Thus, the home appliance 106 can perform an appropriate operation.

  In addition, the present embodiment is not limited to HEMS, but can be applied to any system that remotely controls the home appliance 106 such as a home network system, and further applied, for example, regardless of remote control on the Internet. It can be applied to various scenes such as a system that prevents a home appliance from running out of control by accidental operation of the home appliance by a child or an elderly person.

  Embodiment 2 of the present invention will be described below with reference to the drawings. Except for differences described below, each part of the device monitoring system according to the second embodiment has the same function as each part denoted by the same reference numeral as the first embodiment shown in FIG. Is omitted.

  FIG. 9 is a block diagram showing an outline of the configuration of the device monitoring system according to the second embodiment of the present invention.

  The configuration of the device monitoring system according to the second embodiment includes a management server 901 connected to the Internet 102 instead of the control device 105, and proper operation integrated with the L2SW instead of the L2SW 104 and the proper operation monitoring device 107. Except for having a monitoring device 902, the configuration of the device monitoring system of the first embodiment is the same.

  In the first embodiment, the control device 105 connected to the same L2SW 104 to which the home appliance 106 is connected transmits control information to the home appliance 106. However, in the second embodiment, the management server 901 includes the terminal device 101. The control information is transmitted to the home appliance 106 in accordance with the instruction from.

  The proper operation monitoring device 902 except for the addition of hardware required for the L2SW such as a plurality of ports 903 and software for controlling the hardware to realize the function as the L2SW. Since it is the same as the proper operation monitoring apparatus 107 (see FIG. 2, FIG. 7, etc.) of the first embodiment, a detailed description of its configuration is omitted.

  FIG. 10 is a sequence diagram of proper operation monitoring processing executed in the device monitoring system according to the second embodiment of the present invention.

  In steps 110 to 113 and 115 shown in FIG. 10, the terminal device 101 remotely logs in to the management server 901 via the Internet 102 (step 110), and the control information from the management server 901 is the Internet 102, the home router 103, and the appropriate Reaching the home appliance 106 via the operation monitoring device 902 (step 111), and transmitting / receiving information between the home appliance 106 or the terminal device 101 and the proper operation monitoring device 902 without going through the L2SW 104 Except for (Steps 112, 113, and 115), the steps are the same as Steps 110 to 113 and 115 of the first embodiment.

  The appropriateness determination process in step 401 in FIG. 10 is the same as that executed in the first embodiment (see FIG. 8). When the result of the appropriateness determination process is inappropriate, the proper operation monitoring device 902 sends the shutdown command for the port connected to the control device to the L2SW (step 114), and instead of the proper operation connected to the home appliance 106. The port 903 of the monitoring device 902 itself is shut down (step 116).

  According to the second embodiment of the present invention described above, the following effects are obtained in addition to the same effects as the first embodiment. That is, in the first embodiment, when the result of the proper determination process is inappropriate, the proper operation monitoring device 107 needs to shut down the port 117 in cooperation with the L2SW 104. However, in the second embodiment, the proper operation monitoring device 902 is used. However, by shutting down its own port 903 connected to the home appliance 106, communication between the home appliance 106 and the outside can be cut off. As a result, the same effect as when the port 117 connected to the control device 105 in the first embodiment is shut down can be obtained.

  In addition, this invention is not limited to above-described embodiment, Various modifications are included. Further, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  For example, the L2SW 104 and the proper operation monitoring device 107 of the device monitoring system shown in FIG. 1 can be replaced by a proper operation monitoring device 902 shown in FIG. In this case, the control device 105 is connected to any port 903 of the proper operation monitoring device 902. When the proper operation monitoring device 902 performs the appropriateness determination process (step 401) and determines that the control information is inappropriate, the proper operation monitoring device 902 shuts down the port 903 connected to the control device 105.

  Alternatively, the proper operation monitoring device 902 of the device monitoring system shown in FIG. 9 can be replaced by the L2SW 104 and the proper operation monitoring device 107 shown in FIG. In this case, when the appropriate operation monitoring device 107 performs the appropriateness determination process (step 401) and determines that the control information is inappropriate, it transmits a shutdown command for the port 117 connected to the home appliance 106 to the L2SW 104.

  Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Further, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function is stored in a non-volatile semiconductor memory, a hard disk drive, a storage device such as an SSD (Solid State Drive), or a computer-readable non-readable information such as an IC card, an SD card, or a DVD. It can be stored on a temporary data storage medium.

  In the drawings, control lines and information lines considered necessary for describing the embodiment are shown, and all control lines and information lines included in an actual product to which the present invention is applied are not necessarily shown. Not necessarily. Actually, it may be considered that almost all the components are connected to each other.

Claims (13)

A device monitoring system comprising an electrical device connected to a network and a monitoring device connected to the network,
The electrical device includes a first interface connected to the network, a first processor connected to the first interface, and a first memory connected to the first processor,
The first memory holds identification information of the monitoring device,
The monitoring device includes a second interface connected to the network, a second processor connected to the second interface, and a second memory connected to the second processor,
The second memory holds appropriate index information indicating appropriate control information for controlling the electrical device,
The electrical equipment is
Determine whether the input control information is transmitted from the monitoring device;
If the input control information is transmitted from the monitoring device, control the operation of the electrical equipment according to the input control information,
If the input control information is not transmitted from the monitoring device, the input control information is transmitted to the monitoring device via the network according to the identification information of the monitoring device,
The monitoring device
When receiving the control information from the electrical device, based on the appropriate index information, determine whether the received control information is appropriate,
If the received control information is appropriate, the received control information is transmitted to the electrical device,
When the received control information is not appropriate, the received control information is not transmitted to the electrical device. The device monitoring system according to claim 1,
The control information is
Input to the electrical device via the network,
Including identification information of the transmission source of the control information,
The electrical device compares the input control information with the monitoring device by comparing the identification information included in the input control information with the identification information of the monitoring device held in the first memory. A device monitoring system for determining whether or not the information has been transmitted from a device. The device monitoring system according to claim 2,
A control device connected to the network and transmitting the control information to the electrical device via the network;
The network includes one or more switch devices each having a plurality of ports,
The electrical device, the monitoring device, and the control device are each connected to one of the ports,
When the received control information is not appropriate, the monitoring device transmits an instruction to shut down the port to which the control device is connected to the switch device having the port to which the control device is connected. Equipment monitoring system. The device monitoring system according to claim 2,
The monitoring device
A port connected to the network and a port connected to the electrical device;
When the control information received from the electrical device is not appropriate, the port connected to the electrical device is shut down. The device monitoring system according to claim 2,
A terminal device connected to the network; and a control device that is connected to the network and transmits the control information to the electrical device via the network according to an instruction received from the terminal device;
If the received control information is not appropriate, the monitoring device transmits information indicating that the received control information is not appropriate to the terminal device. The device monitoring system according to claim 1,
The control information transmitted by the electrical device includes identification information of the electrical device that is a transmission source,
The appropriate index information holds information associating identification information of the electric device with the appropriate control information applied to the electric device,
The apparatus monitoring system, wherein the monitoring device determines whether or not the received control information is appropriate based on the appropriate control information corresponding to the identification information included in the received control information. A monitoring device connected to a network,
The monitoring device includes an interface connected to the network, a processor connected to the interface, and a memory connected to the processor.
The memory holds appropriate index information indicating appropriate control information for controlling an electrical device connected to the network,
The monitoring device
When receiving control information from the electrical device, based on the appropriate index information, determine whether the received control information is appropriate,
If the received control information is appropriate, the received control information is transmitted to the electrical device,
When the received control information is not appropriate, the received control information is not transmitted to the electrical device. The monitoring device according to claim 7,
A control device that transmits the control information to the electrical device via the network is connected to the network,
The network includes one or more switch devices each having a plurality of ports,
The electrical device, the monitoring device, and the control device are each connected to one of the ports,
When the received control information is not appropriate, the monitoring device transmits an instruction to shut down the port to which the control device is connected to the switch device having the port to which the control device is connected. Monitoring device. The monitoring device according to claim 7,
The monitoring device
A port connected to the network and a port connected to the electrical device;
When the control information received from the electrical device is not appropriate, the port connected to the electrical device is shut down. The monitoring device according to claim 7,
A terminal device and a control device that transmits the control information to the electrical device via the network according to an instruction received from the terminal device are connected to the network,
If the received control information is not appropriate, the monitoring device transmits information indicating that the received control information is not appropriate to the terminal device. The monitoring device according to claim 7,
The control information transmitted by the electrical device includes identification information of the electrical device that is a transmission source,
The appropriate index information holds information associating identification information of the electric device with the appropriate control information applied to the electric device,
The monitoring apparatus determines whether or not the received control information is appropriate based on the appropriate control information corresponding to the identification information included in the received control information. An electrical device connected to a network,
The electrical device includes an interface connected to the network, a processor connected to the interface, and a memory connected to the processor.
The memory holds identification information of a monitoring device connected to the network,
The electrical equipment is
When control information is input, it is determined whether or not the input control information is transmitted from the monitoring device,
If the input control information is transmitted from the monitoring device, control the operation of the electrical equipment according to the input control information,
When the input control information is not transmitted from the monitoring device, the input control information is transmitted to the monitoring device via the network according to the identification information of the monitoring device. machine. The electric device according to claim 12,
The control information is
Input to the electrical device via the network,
Including identification information of the transmission source of the control information,
The electrical device transmits the input control information from the monitoring device by comparing the identification information included in the input control information with the identification information of the monitoring device held in the memory. It is judged whether it is what was done. Electric equipment characterized by the above-mentioned.