WO2016046861A1

WO2016046861A1 - Control apparatus, server apparatus, control system, control method, and control program

Info

Publication number: WO2016046861A1
Application number: PCT/JP2014/004856
Authority: WO
Inventors: 武曾根田
Original assignee: 富士通株式会社
Priority date: 2014-09-22
Filing date: 2014-09-22
Publication date: 2016-03-31

Abstract

[Problem] To ensure safety of home appliances in cloud-type HEMS. [Solution] A control apparatus characterized by comprising: a reception means that receives a first signal via a network at a different timing from a control instruction directed to an electronic device that is to be operated and controlled; and a control means that, upon determination that no first signal has been received for a predetermined time period since the timing when the first signal was received, controls the power supply of the electronic device.

Description

Control device, server device, control system, control method, and control program

The present technology relates to a control device, a server device, a control system, a control method, and a control program.

In order to realize residential energy management called HEMS (Home Energy Management System), a system for acquiring the state of home appliances and operating instructions via a network has been proposed. In such a system, the user can control the operation of the home appliance from outside the house.

There is the Electrical Appliance and Material Safety Law as a regulation concerning the safety at the time of remote operation of home appliances, and the following interpretation is made. “Even if the communication line is interrupted due to a failure, etc., the remotely operated device will remain in a safe state, and if the communication line is not expected to be restored, the safety function of the remotely operated device can ensure a safe state.” For example, in an air conditioner that is a home electric appliance, the operation of the air conditioner main body in a safe state is requested to be stopped within 24 hours after the communication is interrupted.

In the case of home appliance operation in a house, the user can immediately notice and take action when there is an abnormality in the home appliance, so do not automatically stop the operation of the home appliance such as an air conditioner and maintain the state Can do. However, in the case of remote operation to home appliances using HEMS, if communication is interrupted, the user cannot acquire the status information of the home appliances in the house with the mobile terminal. In this case, since the user is not in the house, he / she cannot recognize the abnormality of the home appliance and cannot cope with it. Further, since communication is interrupted, it is impossible to perform operations such as operation stop of home appliances from the user or the HEMS service platform on the network. For this reason, it is required to automatically control the home appliances in a certain time after the communication interruption. The certain time is a time during which the home appliance can guarantee safety even when the home appliance is continuously operated at the time of communication interruption regardless of whether or not the vehicle is actually operating normally.

As a method for monitoring the disruption of communication between electronic devices, a technique is disclosed in which a keep-alive signal generated by a keep-alive transmission / reception unit is transmitted to a terminal device between terminal devices in a network system to monitor whether the terminal device is active or not. (Patent Document 1).

As a method for realizing energy management of an electronic device, a technique for turning off nighttime illumination after a predetermined time has been disclosed in a vehicle-mounted device when it is determined that communication is interrupted (Patent Document 2).

JP 2012-248927 A Japanese Patent Laid-Open No. 2007-126036

The inventor of the present invention thought that it was necessary to ensure the above safety in HEMS.

Investigate HEMS that has already been realized and that has a HEMS controller in the house. A HEMS that installs a HEMS controller in a house and realizes remote home appliance operation is a mobile terminal for which a user gives an operation instruction, and a server that receives an operation instruction from the mobile terminal via a network and provides a HEMS service And a HEMS controller that is in a house and receives an operation instruction from a server via a network, and a home appliance that is connected to the HEMS controller and operates based on the operation instruction from the HEMS controller.

Thus, in the case of a system in which a HEMS controller is provided in the house, the HEMS controller in the house and the server outside the house can communicate via the gateway by using a common communication method. The HEMS controller and the server can determine the communication interruption by mutually monitoring the communication state. When the HEMS controller determines that communication has been interrupted, it can send an instruction to control the home appliances connected in the house to a safe state.

However, it has been found that there is a problem in the case of a system in which a HEMS controller that gives an operation instruction to home appliances is provided outside a house (referred to as cloud-type HEMS in this case).

In recent years, there is a movement to realize a cloud-type HEMS in which a HEMS controller is provided outside a house. The cloud-type HEMS transmits an operation instruction to a home electric appliance in a house from a HEMS controller provided on the service base side such as a server via a network. In this cloud-type HEMS, even if there is no HEMS controller in the house, it is necessary to determine the interruption of communication by the home appliances in the house.

This invention aims at providing the control apparatus, electronic device, control system, control method, and control program which can ensure the safety | security of household appliances also in cloud type HEMS.

According to one aspect of the disclosed technology, a receiving unit that receives a first signal at a timing different from a control instruction for an operation-controlled electronic device via a network, and a timing at which the first signal is received And a control unit that controls a power source of the electronic device when it is determined that the first signal has not been received for a predetermined period.

According to one aspect of the disclosed technology, a cloud-type HEMS can provide a control device, a server device, a control system, a control method, and a control program that can ensure the safety of home appliances.

FIG. 1 is a diagram illustrating an example of a configuration of a device remote control system according to the first embodiment. FIG. 2 is a block diagram illustrating an example of a hardware configuration of the HEMS controller 200. FIG. 3 is a block diagram illustrating an example of a functional configuration of the HEMS controller 200. FIG. 4 is a block diagram illustrating an example of a hardware configuration of the home appliance 100. FIG. 5 is a block diagram illustrating an example of a functional configuration of the home appliance. FIG. 6 is a block diagram illustrating an example of a hardware configuration of the mobile terminal 4. FIG. 7 is an explanatory diagram showing an example of the record layout of the device status DB 208. FIG. 8 is an explanatory diagram showing a message format related to communication between the HEMS controller 200 and the home appliance 100. FIG. 9 is an explanatory diagram illustrating an example of a communication sequence when the home appliance 100 is controlled by remote control. FIG. 10 is a diagram illustrating an example of a communication sequence when it is determined that communication is interrupted by the home appliance. FIG. 11 is a flowchart of processing performed by the HEMS controller 200 when the home appliance 100 determines a communication interruption. FIG. 12 is a flowchart of home appliance processing when it is determined that communication is interrupted by the home appliance. FIG. 13 is a diagram illustrating an example of a Keep Alive signal. FIG. 14 is a diagram illustrating an example of a Keep Alive signal.

The inventor of the present case, in the cloud-type HEMS, “Even if the communication line is interrupted due to a failure or the like, the remotely operated device maintains a safe state, and if the communication line is not expected to be restored, Focusing on a new issue when realizing "A safe function can ensure a safe state." New issues are described below.

Unlike a system with a HEMS controller in a house, the cloud-type HEMS provides a HEMS service by receiving operation instructions from a mobile terminal through which a user performs an operation instruction and a mobile terminal via a network. And a HEMS controller that transmits an operation instruction from the server to the home appliance via a network, and a home appliance that is in the house and operates based on the operation instruction.

ECHONET Lite (registered trademark) is used as a communication method used when remotely controlling home appliances in HEMS. ECHONET Lite is certified as a standard protocol of HEMS.

A new problem in the case of cloud-type HEMS arises in the cloud-type HEMS because home appliances and a HEMS controller are separated into a house and a house via a network.

In a conventional HEMS in which a HEMS controller is provided in a house, since the HEMS controller is provided in the house, the HEMS controller determines the communication state between the HEMS controller and the server using a unique communication method with the server. In addition, it was possible to give operation instructions to home appliances using ECHONET Lite. However, in the cloud-type HEMS, home appliances in a house must be able to determine a communication interruption and control it to a safe state.

In the cloud-type HEMS, in order to monitor the communication interruption between the home appliance and the server storing the HEMS controller, it is conceivable to transmit a monitoring signal for inquiring the communication state from the home appliance to the server storing the HEMS controller. .

Conventionally, ECHONET Lite used for communication between home appliances and the HEMS controller does not define a communication procedure for monitoring the communication status by accessing the server from the home appliances. Cannot access and monitor the server where the controller is stored. Therefore, in order to access the server from home appliances and monitor the communication disruption, a monitoring communication method that can access and instruct the server separately from the ECHONET Lite, that is, the original proprietary method used between the HEMS controller and the server. It is necessary to use this communication method.

However, it is problematic to disclose this unique communication method for use in home appliances.

In order to monitor the disruption of communication between the home appliance and the HEMS controller, the problem of using the original communication method that has been used between the HEMS controller and the server will be described.

In the cloud-type HEMS, communication between home appliances and the HEMS controller is realized by ECHONET Lite, but it is limited to control within the range of the ECHONET Lite standard. The method must be disclosed to the home appliance side.

In the case of a system in which a conventional HEMS controller is installed in a house, the HEMS controller and the server are often provided by the same manufacturer that provides the HEMS service. There is no need to disclose. However, since it is conceivable that the HEMS controller and the home appliance are different, it is necessary to disclose the communication method used for monitoring the communication state to the outside.

This communication method may be a security hole if the original communication method that can access and instruct the server (using the original communication method of the server provider) is disclosed to the outside. Opening the method to the outside is not preferable in terms of server security.

Therefore, in this case, if a unique communication method is known to a third party, it becomes possible to give instructions to the server, which becomes a security problem in providing the HEMS service. Focused on the issues. Therefore, a method of shifting to a safe state after a certain time without accessing the HEMS controller from home appliances inside the house has been devised.

In this case, a cloud-type HEMS provides a control device, a server device, a control system, a control method, and a control program that can ensure the safety of home appliances on the HEMS without reducing the security of the HEMS.

Hereinafter, a device remote control system (control system) disclosed in the present application will be described in detail with reference to the drawings. In addition, in the following description, although the control object apparatus controlled remotely is demonstrated as household appliances, it is not restricted to it. For example, a telemeter including a smart meter, a gas water heater, a gas floor heating device, and the like that have a communication function, can receive an operation control command from the outside, and can notify a change in its state to the outside are included. The HEMS controller is an example of a control device, and can be configured by a PC (Personal Computer) in addition to the dedicated device. Furthermore, although a house will be described as an example of a facility, the present invention is not limited thereto, and a building that is not used as a house such as a tenant building or an office building may be used. In addition, the building is not an indispensable condition. If a user in the vicinity of the control target device performs an operation in a facility where the control target device capable of remote control is installed, it may be necessary to suppress remote control. The device remote control system disclosed in the present application is applicable.

(First embodiment)
The control device (home appliance) in the first embodiment keeps a network alive signal periodically transmitted from the HEMS controller at a timing different from the control instruction for the home appliance to be operated via the network. The receiving means for receiving (first signal) and the timing at which the first signal is received as a starting point, if there is no reception of the first signal for a predetermined period, it is determined that communication is interrupted, Control means for controlling the power supply is provided.

This makes it possible to ensure the safety of home appliances on the HEMS without degrading the security of the HEMS even in the cloud type HEMS.

FIG. 1 is a diagram illustrating an example of a configuration of a device remote control system according to the first embodiment. The device remote control system includes a home appliance 100 that is a device to be controlled, a broadband router 2, a cloud service platform 3, a mobile terminal 4, and a network N. The home appliance 100 and the broadband router 2 are installed in a house. The broadband router 2 and the cloud service platform 3, and the mobile terminal 4 and the cloud service platform 3 are connected by a network N (communication path).

The cloud service platform 3 communicates with the home appliance 100 via the broadband router 2 via the network N, controls the operation of the home appliance 100, and collects the status of the home appliance 100. The home appliance 100 has a communication function and accepts operation control from other devices via the broadband router 2. The home appliance 100 notifies the external device of its current state and state change via the broadband router 2. The broadband router 2 mediates communication between the home appliance 100 and the cloud service platform 3 outside the house. The mobile terminal 4 has a communication function, and is, for example, a mobile phone, a smartphone, or a tablet terminal. The cloud service platform 3 provides a cloud service, and includes, for example, a server computer. The cloud service platform 3 includes a HEMS service unit 5, a cloud cooperation unit 6, and a HEMS controller 200. The cloud cooperation unit 6 provides a service for the HEMS controller 200 and other devices to operate in conjunction with each other. For example, the cloud cooperation unit 6 authenticates the mobile terminal and mediates communication between the mobile terminal and the HEMS controller 200.

FIG. 2 is a block diagram illustrating an example of a hardware configuration of the HEMS controller 200. The HEMS controller 200 includes a CPU (Central Processing Unit) 201, a RAM (Random Access Memory) 202, a ROM (Read Only Memory) 203, a mass storage unit 204, a communication unit 205, and a reading unit 206. Each component is connected by a bus. The CPU 201 controls each part of the hardware according to the control program 207 stored in the ROM 203. The RAM 202 is, for example, SRAM (Static RAM), DRAM (Dynamic RAM), or flash memory. The RAM 202 temporarily stores various data generated when the CPU 201 executes the program. The large-capacity storage unit 204 is configured by, for example, a hard disk or an SSD (Solid State Drive). The large-capacity storage unit 204 stores a device state DB (DataBase) 208. The control program 207 may be stored in a database. The communication unit 205 has a function of communicating with the home appliance 100 via the broadband router 2. The communication unit 205 has a function of communicating with the mobile terminal 4 via the broadband router 2 and the cloud service platform 3.

The reading unit 206 reads a portable storage medium including a CD (Compact Disk) -ROM and a DVD (Digital Versatile Disc) -ROM. The CPU 201 may read the control program 207 from the portable storage medium via the reading unit and store it in the large-capacity storage unit 204. Further, the CPU 201 may download the control program 207 from another computer via the network N and store it in the large capacity storage unit 204. Furthermore, the CPU 201 may read the control program 207 from the semiconductor memory.

FIG. 3 is a block diagram illustrating an example of a functional configuration of the HEMS controller 200. The HEMS controller 200 includes a UI (User Interface) 211, a home appliance control application 212, a communication control unit 213, a cloud cooperation control unit 214, a communication I / F 215, and a database 216. These functional units of the HEMS controller 200 are realized by the CPU 201 illustrated in FIG. 2 operating according to the control program 207.

The UI 211 includes an input unit used for inputting an instruction necessary for operating the HEMS controller 200 and a display unit for displaying a message to the user. The home appliance control application 212 is an application program for controlling the home appliance 100 that can communicate with the HEMS controller 200.

The communication control unit 213 operates in cooperation with the communication I / F 215, and communicates with the external device of the HEMS controller 200, the blow band router 2, and the home appliance 100 via the network N. The cloud cooperation control unit 214 operates in cooperation with the communication I / F 215 and communicates with the cloud cooperation unit 6. In addition, communication with the mobile terminal 4 is performed via the cloud cooperation unit 6.

The communication I / F 215 provides a communication function with an external device. The database 216 manages various data. The home appliance control application 212 transmits a Keep Alive signal. The process for transmitting the Keep Alive signal will be described later.

FIG. 4 is a block diagram illustrating an example of a hardware configuration of the home appliance 100. The home appliance 100 includes a CPU 101, a RAM 102, a ROM 103, and a communication unit 104. Each component is connected by a bus. The CPU 101 controls each part of the hardware according to the control program 105 stored in the ROM 103. The RAM 102 is, for example, SRAM, DRAM, or flash memory. The RAM 102 temporarily stores various data generated when the CPU executes the program. The communication unit 104 has a function of communicating with the cloud service platform 3 via the broadband router 2. The home appliance 100 includes a home appliance main body 106 that is hardware for realizing a home appliance function.

In this example, the home appliance 100 includes a CPU 101, a RAM 102, a ROM 103, a communication unit 104, and a home appliance main body 106. However, the CPU 101 is provided separately from the home appliance main body 106 and connected to the home appliance main body 106. An adapter including the RAM 102, the ROM 103, and the communication unit 104 may be provided.

FIG. 5 is a block diagram illustrating an example of a functional configuration of the home appliance 100. Household appliance 100 includes a control unit 111 and a communication I / F 112. The control unit 111 controls the home appliance 100. The communication I / F 112 communicates with the HEMS controller 200 via the broadband router 2 and the network N.

FIG. 6 is a block diagram illustrating an example of a hardware configuration of the mobile terminal 4. The portable terminal 4 includes a CPU 401, a RAM 402, a storage unit 403, an input unit 404, a display unit 405, and a communication unit 406. The CPU 401 controls each part of the hardware according to the device control program 407 stored in the storage unit 403. The RAM 402 is, for example, SRAM, DRAM, or flash memory. The RAM 402 temporarily stores various data generated when the CPU 401 executes the program. The storage unit 403 is, for example, a flash memory. For example, the input unit 404 receives an operation input for remotely controlling the device. For example, the display unit 405 displays the state of the device in the house. The communication unit 406 has a function of communicating with the cloud service platform 3 via the network N and the broadband router 2.

Next, data stored in the HEMS controller 200 will be described. FIG. 7 is an explanatory diagram showing an example of the record layout of the device status DB 208. The device status DB 208 includes an address column, an operation status column, an installation location column, an abnormality occurrence status column, and a device name column. The address column stores an address that can uniquely identify the device. The device address is a network address of ECHONET Lite described later. The operation state column stores the state of the device. ON indicates that the device is powered on and operating. OFF indicates that the device is turned off and is not operating. The abnormality occurrence state column stores whether or not an abnormality has occurred in the device. If an abnormality has occurred, the presence of abnormality is stored. If no abnormality has occurred, “no abnormality” is stored.

Next, a communication protocol between the HEMS controller 200 and the home appliance 100 will be described. In this embodiment, a case where ECHONET Lite is used as an example of communication between the HEMS controller 200 and the home appliance 100 will be described. FIG. 8 is an explanatory diagram showing a message format related to communication between the HEMS controller 200 and the home appliance 100. A shows the format of the entire message. B shows the format of the data body included in the message.

The EHD1 and EHD2 of the message are message headers. EHD1 sets a value indicating that the message is an ECHONET Lite message. EHD2 sets a value indicating a message format. The format of the message is an arbitrary message format or a specified message format. Here, the specified message format is used. TID is a transaction ID. The TID is a parameter for associating the request transmitted by the request transmission side with the received response when receiving the response.

As shown in B, the data body includes an area labeled SEOJ, DEOJ, ESV, OPC, EPC, PDC, EDT. In SEOJ, the address of the transmission source device is set. The address of the transmission destination device is set in DEOJ. In ESV, a value indicating which service of ECHONET Lite is supported is set. OPC sets the number of parameters handled by one message. EPC sets detailed parameters. The PDC sets the parameter value for the EDT used in the message.

In this embodiment, three values are used as ESV values. The property value write request is 0x61, the property value write response is 0x71, and the property notification is 0x73.

FIG. 9 is an explanatory diagram showing an example of a communication sequence when the home appliance 100 is controlled by remote control. The mobile terminal 4 is authenticated by the cloud cooperation unit 6 of the cloud service platform 3 (not shown). For example, authentication is performed using an ID and a password. If the mobile terminal 4 is a mobile phone, authentication may be performed using a terminal identification number (solid identification information). The portable terminal 4 will transmit a remote household appliance control command, if the cloud cooperation part 6 receives authentication. The cloud cooperation unit 6 transmits the received remote home appliance control command to the HEMS controller 200. The HEMS controller 200 transmits a remote home appliance control command to the home appliance 100. This home appliance control instruction uses a property value write request message. Home appliance 100 controls itself according to the request, and transmits a remote home appliance control command response to HEMS controller 200. The HEMS controller 200 transmits a remote home appliance control command response to the cloud cooperation unit 6. The cloud cooperation unit 6 transmits a remote home appliance control command response to the portable terminal 4, and the series of communication sequences is completed.

Next, processing for determining the interruption of communication by the home appliance will be described. FIG. 10 is a diagram illustrating an example of a communication sequence when it is determined that communication is interrupted by the home appliance.

When the Keep Alive signal transmitted from the HEMS controller 200 at regular intervals cannot be received for a certain period or when a predetermined number of times cannot be received, the control unit 111 of the household appliance 100 stops the function of the household appliance main body 106 or Turn off the power.

The home appliance control application 212 of the HEMS controller 200 periodically transmits a Keep Alive signal to the home appliance 100 via the network N. The transmission interval of the Keep Alive signal is set in the home appliance 100 based on a time during which the home appliance 100 can guarantee safety even when communication is interrupted. For example, in the case of an air conditioner, the time that the home appliance 100 can guarantee safety even when communication is interrupted is within 24 hours, so it is within 24 hours that the transmission interval of the Keep Alive signal is 10 minutes, 20 minutes, etc. Can be transmitted multiple times, and the interval at which communication interruption can be judged significantly.

The HEMS controller 200 periodically transmits a Keep Alive signal, and the home appliance 100 receives the Keep Alive signal. As shown in FIG. 10, when the fourth keep alive signal cannot be received and the fifth to seventh keep alive signals cannot be subsequently received, the control unit 111 of the home appliance 100 determines that the communication has been interrupted, The function of the home appliance main body 106 is stopped or the power supply of the home appliance 100 is stopped. This is a case where the predetermined number of times for determining the communication interruption is four consecutive times. As a result, it is possible to determine the communication interruption in the home appliance 100 in the house, and in the cloud type HEMS, the safety of the home appliance can be secured without impairing the security safety.

FIG. 11 is a flowchart of processing performed by the HEMS controller 200 when the home appliance 100 determines that communication is interrupted.

The home appliance control application 212 of the HEMS controller 200 sets the timer time T of the keep alive signal transmission interval to 0 at the timing when the operation instruction and the control instruction are transmitted to the home appliance 100 (S201). The home appliance control application 212 starts counting the timer time T of the Keep Alive signal transmission interval (S202), and determines whether or not the timer time T is equal to or longer than the Keep Alive signal transmission interval (S203).

In step S203, if the timer time T is smaller than the transmission interval of the Keep Alive signal, the counting is continued (S203: No). In step S203, when the timer time T is equal to or longer than the transmission interval of the Keep Alive signal (S203: Yes), the Keep Alive signal is transmitted to the home appliance 100 via the network N (S204).

At this time, when a response indicating that the user has performed an operation in the house is received from the home appliance 100, the count of the timer time T may be reset.

After sending the Keep Alive signal, the timer time T is set to 0 again and the count is started.

In the above description, the timer counts up the timer value. However, the timer may count down. In that case, a threshold is set for the timer value and the timer is started. The elapse of the guard time may be determined based on whether or not the timer value has become 0 or less.

FIG. 12 is a flowchart of processing performed by the home appliance when it is determined that communication has been interrupted by the home appliance.

When the control unit 111 of the household electrical appliance 100 receives the Keep Alive signal transmitted from the HEMS controller 200 (S101), the control unit 111 starts determining whether or not the communication is interrupted depending on whether or not the Keep Alive signal can be received.

The control unit 111 determines whether or not the Keep Alive signal has been received continuously N times (S102). The N times is set based on the transmission interval of the Keep Alive signal and the time that the home appliance 100 can guarantee safety even when communication is interrupted in the home appliance 100. For example, in the case of an air conditioner, the time that the home appliance 100 can guarantee safety even when communication is interrupted is within 24 hours, so it is within 24 hours that the transmission interval of the Keep Alive signal is 10 minutes, 20 minutes, etc. Can be transmitted multiple times, and the interval at which communication interruption can be judged significantly.

When it is determined whether or not the keep alive signal of the control unit 111 has not been received continuously N times, it is stored in advance since the determination of the communication interruption due to the availability of the keep alive signal is started in step S101. Determine based on the transmission interval of the Keep Alive signal. For example, if the transmission interval of the Keep Alive signal is 10 minutes and it is determined that the communication is interrupted at N = 4 times, the communication is not received when the Keep Alive signal cannot be received within 40 minutes from the start of the communication interruption determination. Judge that it is disrupted.

Furthermore, when it is determined that the communication is interrupted (S102: Yes), the control unit 111 determines whether the operation instruction to the home appliance 100 performed immediately before is from the HEMS controller 200 ( S103). An operation instruction from other than the HEMS controller 200 includes an operation instruction using an infrared remote controller.

If the operation instruction to the home appliance 100 performed immediately before is from the HEMS controller 200 (S103: Yes), the home appliance main body 106 is controlled (S104). For example, in an air conditioner, safety is ensured by turning off the power of the main body.

Next, an example of a Keep Alive signal is shown. FIG. 13 is a diagram illustrating an example of a Keep Alive signal.

As a Keep Alive signal, a message format for GET (Read) the property value of the control target supported by the ECHONET Lite compatible device is used. A value set different from the format value used for the normal remote home appliance control shown in FIG. 8 is used as the Keep Alive signal.

DEOJ sets the address of the destination device and indicates the class of the home appliance 100 to be controlled. In ESV, a value indicating which service of ECHONET Lite is supported is set. OPC sets the number of parameters (number of processing properties) handled by one message. EPC sets detailed parameters. The PDC sets the parameter value (number of bytes) used in the message. The DEOJ value is set to 0xXXXX, the ESV value is set to 0x62 corresponding to the property value read request, and the OPC value is set to 0x01. The value of EPC is set to 0x80 indicating the operation state. The value of EPC may be another value indicating an installation location or the like. The value of PDC is set to 0x01 indicating that the number of bytes is 1. EDT is not required for GET (Read).

By using this, it is possible to transmit and receive a Keep Alive signal without using a special communication protocol.

FIG. 14 is a diagram illustrating an example of a Keep Alive signal. FIG. 14 shows an example of a Keep Alive signal generated for determining communication interruption based on a format defined in ECHONET Lite, which is a standard for the Keep Alive signal.

ESV, OPC, PDC, and EDT values are set in the same manner as in FIG. By setting the value of DEOJ to 0x0FXXXX indicating that it is a user-defined class and the value of EPC to 0xFY that is user-defined, a signal different from the signal used for the control instruction of the target home appliance within the standard range It can be used as an Alive signal.

2: Broadband router 3: Cloud service platform 4: Mobile terminal 5: HEMS service unit 6: Cloud cooperation unit 100: Home appliance 101: CPU
102: RAM
103: ROM
104: Communication unit 105: Control program 106: Home appliance main body 111: Control unit 112: Communication I / F
200: HEMS controller 201: CPU
202: RAM
203: ROM
204: Mass storage unit 205: Communication unit 206: Reading unit 207: Control program 208: Device state DB
211: UI
212: Home appliance control application 213: Communication control unit 214: Cloud cooperation control unit 215: Communication I / F
216: Database 401: CPU
402: RAM
403: Storage unit 404: Input unit 405: Display unit 406: Communication unit 407: Device control program

Claims

Receiving means for receiving the first signal at a timing different from the control instruction to the operation-controlled electronic device via the network;
And a control unit that controls a power source of the electronic device when it is determined that the first signal has not been received for a predetermined period starting from the timing at which the first signal is received. .
The first signal is a signal using the same format as the control instruction,
The control means determines that the received first signal is not a control instruction based on information indicating the first signal, and starts the timing of the first signal for a predetermined period from the timing of receiving the first signal. The control device according to claim 1, wherein when it is determined that there is no reception, the electronic device is turned off.
The first signal is not received for a predetermined period of time starting from the timing at which the first signal is received at a timing different from the control instruction for the operation-controlled electronic device via the network. A server device comprising: a transmission unit that transmits, as a transmission destination, a control device having a control unit that controls a power source of the electronic device when determined.
A server device having a transmission means for transmitting the first signal at a timing different from the control instruction for the electronic device to be operated and controlled via the network;
A receiving means for receiving the first signal at a timing different from the control instruction for the electronic device via the network, and reception of the first signal for a predetermined period starting from the timing at which the first signal is received. A control system comprising: a control unit that controls a power source of the electronic device when it is determined that there is no power.
The first signal is transmitted via the network at a timing different from the control instruction for the operation-controlled electronic device.
The first signal is received via a network at a timing different from the control instruction for the electronic device,
A control method comprising: controlling the power supply of the electronic device when it is determined that the first signal has not been received for a predetermined period from the timing at which the first signal is received.
The first signal is transmitted via the network at a timing different from the control instruction for the operation-controlled electronic device.
The first signal is received via a network at a timing different from the control instruction for the electronic device,
A control program for controlling a power source of the electronic device when it is determined that the first signal has not been received for a predetermined period from the timing of receiving the first signal.