WO2012060100A1 - ゲートウェイ装置、通信装置、機器連携ネットワークシステム、及び機器連携方法 - Google Patents
ゲートウェイ装置、通信装置、機器連携ネットワークシステム、及び機器連携方法 Download PDFInfo
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- WO2012060100A1 WO2012060100A1 PCT/JP2011/006136 JP2011006136W WO2012060100A1 WO 2012060100 A1 WO2012060100 A1 WO 2012060100A1 JP 2011006136 W JP2011006136 W JP 2011006136W WO 2012060100 A1 WO2012060100 A1 WO 2012060100A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Definitions
- the present invention relates to a gateway device, a communication device, a device cooperation network system, and a device cooperation method for linking a plurality of devices on a network.
- HEMS home energy management system
- future home appliances will be connected to at least two networks: a device cooperation network connected for the purpose of network AV control and a power management network connected for the purpose of power saving. .
- a device cooperation network system that uses a high-performance mobile terminal having a wireless LAN function such as SmartPhone as a controller in network AV control of TVs, recorders and the like represented by DLNA (Digital Living Network Alliance) has also appeared.
- the mobile terminal is connected to the device cooperation network and controls a television, a recorder, and the like. Therefore, the user can reproduce any content from any device by operating the mobile terminal.
- IP-based communication technology is mainly used. Therefore, in most cases, the device needs to be in a state capable of interpreting at least the IP protocol. However, it is not preferable from the viewpoint of power consumption that the device is always activated so that the IP protocol can be interpreted. For this reason, for example, in a state where the power of the television is OFF or in a standby state at a level where the IP protocol cannot be interpreted, there is a practical problem that the mobile device cannot control the television at all.
- a server device monitors a message for a sleeping device flowing on a home network, responds to the message on behalf of the server device, and activates the sleeping device. It is disclosed (for example, see Patent Document 1). This makes it possible to start control of the target device using the device cooperation network without the user starting each target device that is not completely activated.
- a user may control a device in an invisible place through a device operated by self-confidence.
- the activation time of the target device becomes long, the user becomes very uneasy because the current state is unknown, and there is a possibility that an erroneous operation is performed. As a result, the device cooperation may be failed.
- An object of the present invention is to provide a gateway device, a communication device, a device cooperation network system, and a device cooperation method.
- a gateway device for linking a plurality of devices on a first network, and monitors messages flowing on the first network.
- a message monitoring unit for detecting a device discovery message for discovering a device satisfying an arbitrary requirement, and at least one satisfying the requirement indicated in the detected device discovery message among the plurality of devices.
- An activation state management unit for confirming whether the target device is in an activated state in which communication is possible on the first network, and a time estimated to be necessary for the target device to be in the activated state
- a predicted startup time determining unit that determines a predicted startup time; and the predicted startup time determined when the target device is not in the startup state.
- a response message including to information, and a proxy response unit to transmit on behalf of the target device.
- a response message including information indicating the predicted activation time can be returned on behalf of the target device. Therefore, the device that has received the response message can execute various processes based on information indicating the activation time of the target device included in the response message, and can stably cooperate with the target device.
- the gateway device further includes a time at which the target device starts to start and a time at which the target device receives a network join message indicating that the target device is ready to communicate on the first network. And a startup time collection unit that collects the startup time of the target device, wherein the predicted startup time determination unit determines the predicted startup time based on startup times of the target device collected in the past. Is preferred.
- the predicted startup time can be determined based on the startup times of the target devices collected in the past, and the accuracy of the predicted startup time can be improved.
- the predicted activation time determination unit further calculates a prediction accuracy of the determined estimated activation time based on the number of times the activation time of the target device is collected by the activation time collection unit, and the response message is Furthermore, it is preferable that information including the calculated prediction accuracy is included.
- the device that has received the response message can further perform various processes based on the prediction accuracy, and can stably cooperate with the target device. It becomes possible.
- the gateway device further includes a remote activation control unit that remotely activates the target device via a second network when the response message is transmitted, and the activation time collection unit includes the target device. It is preferable that the activation time of the target device is collected using the time at which the remote activation is started as the time at which the target device starts activation.
- the target device can be remotely activated, and the time at which the target device has been remotely activated can be used as the time at which the target device has been activated. Therefore, more accurate startup time can be collected.
- the network participation message includes information indicating whether the target device has been remotely activated by the gateway device, and the activation time collection unit indicates that the network participation message has been remotely activated. It is preferable to collect the activation time of the target device only.
- the remote activation control unit remotely activates the target device when there is one target device, and does not remotely activate the target device when there are a plurality of target devices.
- the gateway device further includes an activation time collection unit that collects activation time of the target device based on a power consumption value of the target device, and the predicted activation time determination unit is configured to collect the estimated activation time in the past.
- the predicted activation time is determined based on the activation time of the target device.
- the startup time of the target device can be easily collected based on the power consumption value of the target device.
- a communication apparatus is a communication apparatus that cooperates with an apparatus on a first network, and transmits an apparatus discovery message for discovering an apparatus that satisfies an arbitrary requirement to the first network.
- a device cooperation processing unit that transmits to the device above and receives a response message to the device discovery message, and the communication device predicts that the target device that satisfies the requirements indicated by the device discovery message is in an activated state
- the estimated activation time which is the time to be executed, is included in the received response message, at least one predetermined process is executed based on the estimated activation time.
- the information processing apparatus further includes a notification unit that executes a process of notifying the user of the predicted activation time as the predetermined process when the received response message includes the estimated activation time.
- the user when the predicted activation time is included in the response message, the user can be notified of the estimated activation time, and the user's erroneous operation can be suppressed.
- the device cooperation processing unit is a target indicated by the response message after the estimated activation time has elapsed from the time when the response message is received. It is preferable to execute, as the predetermined process, a process for transmitting a message for cooperation with the target apparatus to the apparatus.
- the message can be transmitted to the target device after the predicted activation time included in the response message has elapsed, it is possible to stably cooperate with the target device.
- the device cooperation processing unit when the device cooperation processing unit receives a plurality of response messages, the device cooperation processing unit further discovers one target device selected from a plurality of target devices indicated by the plurality of response messages. Preferably, a device discovery message is transmitted to the devices on the first network.
- a device discovery message for discovering one selected target device can be transmitted.
- the gateway device does not have to activate all the target devices, so that it is possible to suppress an increase in power consumption.
- the gateway device may be configured as an integrated circuit.
- the present invention can also be realized as a device cooperation network system including such a gateway device and a communication device.
- the present invention can also be realized as a device cooperation method in which the operation of a characteristic component included in such a gateway device is a step.
- the present invention can also be realized as a program that causes a computer to execute each step included in the device cooperation method.
- Such a program can be distributed via a non-temporary recording medium such as a CD-ROM (Compact Disc Only Memory) or a transmission medium such as the Internet.
- the target device on the network when the target device on the network is not activated, the target device is remotely activated and a response message including the predicted activation time of the target device is returned on behalf of the target device. can do. Therefore, the device that has received the response message can execute various processes based on the predicted activation time of the target device, and can stably cooperate with the target device.
- FIG. 1 is a diagram showing an outline of a device cooperation network system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a functional configuration of the gateway device according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram showing an example of an activation state list according to Embodiment 1 of the present invention.
- FIG. 4 is a diagram showing an example of a device information list according to Embodiment 1 of the present invention.
- FIG. 5 is a block diagram showing a functional configuration of the client device according to Embodiment 1 of the present invention.
- FIG. 6 is a block diagram showing a functional configuration of the server device according to Embodiment 1 of the present invention.
- FIG. 1 is a diagram showing an outline of a device cooperation network system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a functional configuration of the gateway device according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram showing
- FIG. 7 is a sequence diagram showing a flow of information in the device cooperation network system according to Embodiment 1 of the present invention.
- FIG. 8 is a flowchart showing a processing flow of the gateway device according to the first embodiment of the present invention.
- FIG. 9 is a flowchart showing the flow of processing of the client device according to Embodiment 1 of the present invention.
- FIG. 10 is a diagram showing an example of information displayed by the client device according to Embodiment 1 of the present invention.
- FIG. 11 is a diagram showing a flow of activation processing of the server device according to Embodiment 1 of the present invention.
- FIG. 12 is a diagram showing a flow of stream transmission processing of the server device according to Embodiment 1 of the present invention.
- FIG. 13 is a diagram showing an overview of a device cooperation network system according to Embodiment 2 of the present invention.
- FIG. 14 is a sequence diagram showing a flow of information in the device cooperation network system according to the second embodiment of the present invention.
- FIG. 15 is a flowchart showing a processing flow of the gateway device according to the second embodiment of the present invention.
- FIG. 16 is a flowchart showing a processing flow of the client device according to the second embodiment of the present invention.
- FIG. 17A is a diagram showing an example of information displayed by the client device according to Embodiment 2 of the present invention.
- FIG. 17B is a diagram showing another example of information displayed by the client device according to Embodiment 2 of the present invention.
- FIG. 18 is a diagram illustrating an example of a device information list according to an aspect of the present invention.
- FIG. 19 is a block diagram illustrating a functional configuration of a gateway device according to an aspect of the present invention.
- FIG. 1 is a diagram showing an overview of a device cooperation network system 1000 according to Embodiment 1 of the present invention. As illustrated in FIG. 1, the device cooperation network system 1000 includes a gateway device 1003, a client device 1004, and a server device 1005.
- the gateway device 1003, the client device 1004, and the server device 1005 are connected to the first network 1001 by radio.
- the first network 1001 is, for example, a LAN (Local Area Network) that is a communication network using IP (Internet Protocol).
- gateway device 1003, the client device 1004, and the server device 1005 are not necessarily connected to the first network 1001 by radio.
- the server device 1005 and the gateway device 1003 are connected to the second network 1002.
- the gateway device 1003 can remotely activate the server device 1005 via the second network 1002.
- the second network 1002 is preferably a specific power saving wireless network such as ZigBee, for example. Accordingly, since the server device 1005 communicates via the second network 1002, it is possible to reduce the power that must be supplied even when the server device 1005 is in the non-activated state. That is, the server device 1005 can reduce standby power.
- the second network 1002 may be, for example, a unique dedicated network.
- the second network 1002 may be realized by a signal line that can be activated by a power switch, for example. That is, the second network 1002 may be the same as the first network 1001 as long as the connected target device can be changed from the activated state to the non-activated state as a minimum function.
- the activated state indicates a state in which communication is possible on the first network 1001.
- the non-activated state indicates a state where communication on the first network 1001 is not possible.
- FIG. 2 is a block diagram showing a functional configuration of the gateway device 1003 according to Embodiment 1 of the present invention.
- the gateway device 1003 corresponds to a gateway device.
- the gateway device 1003 includes a first communication unit 1101, a second communication unit 1102, an activation state management unit 1103, a remote activation control unit 1105, and a message monitoring unit. 1106, an activation time collection management unit 1107, a proxy response unit 1109, and a storage unit 1110.
- the first communication unit 1101 is a communication interface for communicating with a device on the first network 1001 (here, the client device 1004 or the server device 1005).
- the second communication unit 1102 is a communication interface for communicating with a device (here, the server device 1005) on the second network 1002.
- the activation state management unit 1103 uses the second communication unit 1102 to confirm whether or not the devices on the second network 1002 are in the activation state.
- the activation state management unit 1103 stores the confirmation result in the activation state list 1104 in association with the device ID for identifying the device. Details of the activation state list 1104 will be described later with reference to FIG.
- the remote activation control unit 1105 instructs the devices on the second network 1002 to activate or terminate, and controls the activation state of the devices. That is, the remote activation control unit 1105 changes the device from the non-activated state to the activated state by remotely activating the device via the second network 1002. Further, the remote activation control unit 1105 notifies the activation time collection management unit 1107 of the time when the remote activation of the device is started.
- the message monitoring unit 1106 detects a device discovery message by monitoring messages flowing on the first network 1001. In addition, when the device monitoring message is detected, the message monitoring unit 1106 requests the activation state management unit 1103 to confirm whether the target device is in the activation state.
- the device discovery message is a message for discovering a device satisfying an arbitrary requirement from devices on the first network 1001. Specifically, the device discovery message is a message requesting a response message to be returned to the target device that is a device that satisfies the requirements indicated by the device discovery message.
- the target device is a device that is the target of the device discovery message.
- the target device is a device that satisfies the requirements indicated by the device discovery message among the devices on the first network.
- the message monitoring unit 1106 does nothing when the target device is activated, and requests the proxy response unit 1109 for a proxy response when the target device is not activated.
- the message monitoring unit 1106 receives a network participation message such as Notify, the message monitoring unit 1106 notifies the activation time collection management unit 1107 to that effect together with the time.
- the network participation message is a message indicating that communication on the first network 1001 is possible. That is, the network participation message is a message indicating that the device has been activated.
- the activation time collection management unit 1107 corresponds to the activation time collection unit, and the time when remote activation of the target device obtained from the remote activation control unit 1105 (remote activation start time) and the network participation obtained from the message monitoring unit 1106 are performed.
- the activation time of the target device is collected based on the message reception time (network participation message reception time). That is, the activation time collection management unit 1107 collects the time from the remote activation start time to the network participation message reception time as the activation time.
- the start-up time is the time taken for the device state to change from the non-start-up state to the start-up state. That is, the activation time is the time until the state of the target device changes from a state where communication on the first network 1001 is impossible to a possible state.
- the startup time collection management unit 1107 corresponds to a predicted startup time determination unit, and determines a predicted startup time that is predicted to be necessary for the target device to be in the startup state.
- the activation time collection management unit 1107 is predicted to be necessary for the target device to be in the activated state when the target device is remotely activated in the future based on the activation time collected in the past. Determine the estimated activation time, which is the time. Specifically, the activation time collection management unit 1107 determines, for example, the latest activation time collected as the estimated activation time.
- the activation time collection management unit 1107 may predict an average value of activation times collected in the past as a predicted activation time. Further, for example, the activation time collection management unit 1107 may predict an average value of activation times excluding activation times greatly different from other activation times collected in the past as a predicted activation time.
- the average value may be a statistical average and does not necessarily have to be an arithmetic average value.
- the activation time collection management unit 1107 may predict the median value or the mode value as the estimated activation time instead of the average value. That is, the activation time collection management unit 1107 may determine a statistical representative value of activation times collected in the past as the predicted activation time.
- the activation time collection management unit 1107 does not necessarily have to determine the predicted activation time based on the activation times collected in the past. For example, the activation time collection management unit 1107 may determine the time preset by the user as the estimated activation time.
- the startup time collection management unit 1107 stores the predicted startup time of the target device determined here in the device information list 1108.
- the proxy response unit 1109 Based on the request from the message monitoring unit 1106, the proxy response unit 1109 refers to the address information of the target device and the predicted activation time stored in the device information list 1108, and transmits a response message transmitted on behalf of the target device. Is generated. Specifically, the proxy response unit 1109 generates a response message including information indicating the predicted activation time determined by the activation time collection management unit 1107. Then, the proxy response unit 1109 transmits the generated response message to the device that has transmitted the device discovery message.
- the information indicating the predicted activation time is not necessarily information indicating the predicted activation time itself.
- the information indicating the predicted activation time may be information indicating the extent of the predicted activation time.
- the information indicating the predicted activation time may be, for example, a classification symbol (for example, “large”, “medium”, or “small”) according to the length of the estimated activation time.
- the storage unit 1110 is, for example, a hard disk or a flash memory, and stores an activation state list 1104 and a device information list 1108.
- the activation state list 1104 and the device information list 1108 will be described with reference to FIGS.
- FIG. 3 is a diagram showing an example of the activation state list 1104 according to Embodiment 1 of the present invention. As illustrated in FIG. 3, the activation state list 1104 stores device IDs and state information in association with each other.
- the device ID is a unique ID managed between devices on the first network 1001. That is, the device ID is an identifier for identifying a device on the first network 1001. For example, the device ID is set by the user. For example, the device ID may be set in advance in the device.
- Status information indicates whether or not the device identified by the device ID is in an activated state.
- FIG. 3 shows that the device identified by the device ID “ID-001” is in the “non-activated state”.
- FIG. 4 is a diagram showing an example of the device information list 1108 according to Embodiment 1 of the present invention. As illustrated in FIG. 4, the device information list 1108 stores device information, address information, and estimated activation time in association with the device ID.
- Device information mainly indicates information related to services that the target device can provide.
- the device identified by “ID-001” is managed as a server device capable of streaming transmission of images or sounds.
- Address information is information for communication between devices on the first network 1001.
- an IP address (“192.168.1.10”) is stored as address information of the device identified by “ID-001”.
- the predicted activation time is the activation time predicted by the activation time collection management unit 1107. In FIG. 4, “20 seconds” is stored as the predicted activation time of the device identified by “ID-001”.
- FIG. 5 is a block diagram showing a functional configuration of the client device 1004 according to Embodiment 1 of the present invention.
- the client device 1004 corresponds to a communication device.
- the client device 1004 includes a device cooperation processing unit 1201, a stream reproduction unit 1202, a display unit 1203, and a communication unit 1204.
- the device cooperation processing unit 1201 transmits a device discovery message for discovering a device satisfying an arbitrary requirement to devices on the first network 1001.
- the device cooperation processing unit 1201 sends a device discovery message described so as to return a response message if it is a server device in order to discover the server device 1005 on the first network 1001. Transmission is performed by multicast using the communication unit 1204.
- the device cooperation processing unit 1201 receives a response message to the transmitted device discovery message. When a response message to the device discovery message is received, the device cooperation processing unit 1201 notifies the stream reproduction unit 1202 to that effect.
- the device cooperation processing unit 1201 determines whether or not the response message includes information indicating a predicted activation time that is a time predicted to be necessary for the target device satisfying the requirement indicated by the device discovery message to be activated. judge.
- information indicating the predicted activation time is included in the response message, information indicating the estimated activation time is notified to the display unit 1203.
- the stream playback unit 1202 transmits a stream transmission request message to the target device (here, the server device 1005) indicated by the response message to the device discovery message using the communication unit 1204. To do. If the response message includes information indicating the predicted activation time, the stream playback unit 1202 transmits the stream transmission request message after the estimated activation time has elapsed from the time when the response message is received.
- the stream playback unit 1202 plays back a stream transmitted from the server device 1005 via the first network 1001.
- the target device indicated by the response message is a device that is the source of the response message or a device that is a proxy for the response message.
- the target device indicated by the response message is the server device 1005.
- the display unit 1203 is an example of a notification unit, such as a liquid crystal display or a plasma display.
- a display unit 1203 displays moving image data reproduced by the stream reproduction unit 1202.
- the display unit 1203 displays the predicted activation time notified from the device cooperation processing unit 1201. That is, when the received response message includes information indicating the estimated activation time, the display unit 1203 notifies the user of information indicating the estimated activation time.
- the communication unit 1204 is a communication interface for communicating with a device (here, the gateway device 1003 or the server device 1005) connected to the first network 1001.
- FIG. 6 is a block diagram showing a functional configuration of the server device 1005 according to Embodiment 1 of the present invention.
- the server device 1005 includes a remote activation accepting unit 1301, an activation unit 1302, a device cooperation processing unit 1303, a stream transmission unit 1305, a first communication unit 1307, and a second communication unit. 1308 and a storage unit 1309.
- the remote activation accepting unit 1301 uses the second communication unit 1102 to receive a remote activation request from the gateway device 1003 via the second network 1002. Then, the remote activation accepting unit 1301 notifies the activation unit 1302 of the received remote activation request.
- the activation unit 1302 activates the server device 1005 in response to the notification from the remote activation acceptance unit 1301. That is, the activation unit 1302 changes the state of the server device 1005 from the non-activated state to the activated state.
- the device cooperation processing unit 1303 receives a device discovery message from the client device 1004 via the first network 1001 when the server device 1005 is activated. Then, the device cooperation processing unit 1303 confirms whether or not the own device (server device 1005) is a target device that satisfies the requirements indicated by the device discovery message by referring to the device information 1304. If the device itself is the target device, the device cooperation processing unit 1303 transmits a response message to the transmission source of the device discovery message.
- the device information 1304 includes information on the own device. Specifically, the device information 1304 includes information indicating whether the own device functions as a server.
- the device cooperation processing unit 1303 further broadcasts a network participation message to devices on the first network 1001 using the first communication unit 1307 when the server device 1005 changes from the non-activated state to the activated state. Send.
- the stream transmission unit 1305 reads the content 1306 from the storage unit 1309 according to the stream transmission request message received from the client device 1004, and transmits the content 1306 to the client device 1004 as a stream.
- the first communication unit 1307 is a communication interface for communicating with a device (here, the gateway device 1003 or the client device 1004) connected to the first network 1001.
- the second communication unit 1102 is a communication interface for communicating with a device (here, the gateway device 1003) connected to the second network 1002.
- Storage unit 1309 for example, hard disk or flash memory.
- the storage unit 1309 stores device information 1304 and content 1306.
- FIG. 7 is a sequence diagram showing a flow of information in the device cooperation network system 1000 according to Embodiment 1 of the present invention.
- a case where the server device 1005 is in a non-activated state will be described as an initial state.
- the device cooperation processing unit 1201 of the client device 1004 transmits a device discovery message by broadcast to devices on the first network 1001 (gateway device 1003 and server device 1005) (step S101). Note that the server device 1005 cannot receive a device discovery message because it is in an inactive state.
- the activation state management unit 1103 of the gateway device 1003 confirms whether the target device that satisfies the requirements indicated by the device discovery message is in the activated state.
- the activation state management unit 1103 extracts a device ID (“ID-001”) in which the device information in the device information list 1108 shown in FIG. 4 is a server device.
- the activation state management unit 1103 refers to the activation state list 1104 illustrated in FIG. 3 and confirms whether the device with the extracted device ID is in the activation state.
- the device identified by “ID-001” is server device 1005.
- the remote activation control unit 1105 transmits a remote activation request for remotely activating the server device 1005 to the server device 1005 (step S102).
- the proxy response unit 1109 of the gateway device 1003 transmits, on behalf of the server device 1005, a proxy response message including information indicating the predicted activation time to the client device 1004 that is the transmission source of the device discovery message (step S103).
- the proxy response unit 1109 refers to the device information list 1108 illustrated in FIG. 4 and acquires the predicted activation time (“20 seconds”) of the server device 1005. Then, the proxy response unit 1109 transmits to the client device 1004 a proxy response message including information indicating the predicted activation time acquired in this way.
- the activation unit 1302 of the server device 1005 activates the server device 1005 in response to the remote activation request (step S104). Then, when the server device 1005 is activated, the device cooperation processing unit 1303 transmits a network participation message to the devices on the first network 1001 by multicast (step S105).
- the activation time collection management unit 1107 of the gateway device 1003 collects the time from the time when the remote activation request is transmitted to the time when the network participation message is received as the activation time of the server device 1005. Furthermore, the startup time collection management unit 1107 uses the startup time collected in this way to determine a predicted time required for startup when the server device 1005 is remotely started in the future as a predicted startup time, The predicted activation time is stored in the device information list 1108.
- the device cooperation processing unit 1201 of the client device 1004 transmits a stream transmission request message to the server device 1005 after the estimated activation time has elapsed from the time when the proxy response message is received (step S106).
- the stream transmission unit 1305 of the server device 1005 receives the stream transmission request message from the client device 1004, and transmits a stream transmission response message to the client device 1004 (step S107). Thereafter, the stream playback unit 1202 of the client device 1004 executes processing necessary for playing back the stream transmitted from the server device 1005 (hereinafter referred to as “stream playback processing”) (step S108).
- FIG. 8 is a flowchart showing a process flow of the gateway device 1003 according to the first embodiment of the present invention. Specifically, FIG. 8 is a flowchart showing the flow of processing from when the gateway device 1003 detects a device discovery message until it stores the predicted activation time in the device information list 1108.
- the activation state management unit 1103 uses the second communication unit 1102 to confirm whether the devices on the second network 1002 are in the activation state, and the confirmation result Is stored in the activation state list 1104.
- the activation state management unit 1103 of the gateway device 1003 may make an inquiry to the devices on the second network 1002 periodically or at an arbitrary timing.
- the message monitoring unit 1106 monitors a message flowing on the first network 1001 and detects that the first communication unit 1101 has received the message. Then, the message monitoring unit 1106 determines whether or not the received message is a device discovery message (step S1001). If the received message is not a device discovery message (No in step S1001), the process returns to the state where the message is monitored.
- the message monitoring unit 1106 refers to the device information list 1108 to set a device that satisfies the request indicated by the device discovery message as a target device. Extract.
- the activation state management unit 1103 refers to the activation state list 1104 to check whether the target device is in the activation state (step S1002).
- the state returns to the state where the message is monitored.
- the remote activation control unit 1105 remotely activates the target device (step S1004). At this time, the activation time collection management unit 1107 holds the time at which the remote activation is started.
- the proxy response unit 1109 creates a proxy response message with reference to the device information list 1108 (step S1005). Then, the proxy response unit 1109 transmits the generated proxy response message to the device that is the transmission source of the device discovery message using the first communication unit 1101 (step S1006).
- the message monitoring unit 1106 monitors a message flowing on the first network 1001 (step S1007).
- the message received by the first communication unit 1101 is a network participation message from the target device remotely activated in step S1004 (Yes in step S1007)
- the activation time collection management unit 1107 proceeds to step S1004.
- the activation time is collected from the time held in step S3 and the time when the network participation message is received (step S1008). Then, based on the activation time of the target device collected so far, the time estimated to be required to be activated when the target device is remotely activated in the future is determined as the predicted activation time (step S1009).
- the activation time collection management unit 1107 stores the estimated activation time in the device information list 1108 (step S1010), and returns to step S1001.
- FIG. 9 is a flowchart showing the flow of processing of the client device 1004 according to Embodiment 1 of the present invention. Specifically, FIG. 9 is a flowchart showing a flow of processing from when the client device 1004 transmits a device discovery message to when content stream playback is started.
- the device cooperation processing unit 1201 transmits a device discovery message for discovering a server device on the first network 1001 to the devices on the first network 1001 by multicast using the communication unit 1204 (Step S1). S1101). After that, the device cooperation processing unit 1201 determines whether the message received by the communication unit 1204 is a response message to the device discovery message (hereinafter referred to as “device discovery response message”) (step S1102). If the message received by the communication unit 1204 is not a device discovery response message (No in step S1102), the processing in step S1102 is repeated until a device discovery response message is received.
- device discovery response message hereinafter referred to as “device discovery response message”
- the device cooperation processing unit 1201 analyzes the device discovery response message (step S1103). Then, the device cooperation processing unit 1201 determines whether information indicating the predicted activation time is included in the device discovery response message (step S1104).
- the stream playback unit 1202 activates the server device 1005 that is the target device indicated by the device discovery response message. It is determined that the state is in the state, and a stream transmission request message is transmitted to the server device 1005 (step S1107).
- the display unit 1203 displays the estimated activation time on the screen (step S1105).
- the display unit 1203 displays the predicted activation time on the screen as shown in FIG.
- the device cooperation processing unit 1201 waits for the predicted activation time (step S1106), and then notifies the stream reproduction unit 1202 that the server device 1005 is predicted to be activated. Then, the stream reproduction unit 1202 transmits a stream transmission request message to the server device 1005 (step S1107).
- the stream playback unit 1202 determines whether the message received by the communication unit 1204 is a stream transmission response message (step S1108). If the message received by the communication unit 1204 is not a stream transmission response message (No in step S1108), the processing in step S1108 is repeated until the stream transmission response message is received. On the other hand, when the message received by the communication unit 1204 is a stream transmission response message (Yes in step S1108), the stream reproduction unit 1202 starts a stream reproduction process (step S1109).
- FIG. 11 is a flowchart showing a flow of activation processing of the server device 1005 according to Embodiment 1 of the present invention. Specifically, FIG. 11 is a flowchart showing a flow of processing from when the server device 1005 receives a remote activation request until it transmits a network participation message.
- the remote activation accepting unit 1301 receives a remote activation request from the gateway device 1003 via the second network 1002, and notifies the activation unit 1302 that the remote activation request has been accepted. Thereafter, the activation unit 1302 activates the entire server device 1005 (step S1201).
- the device cooperation processing unit 1303 waits until the server device 1005 is in an activated state, that is, a state in which a message can be transmitted using the first communication unit 1307 (step S1202). Then, the device cooperation processing unit 1303 transmits the network participation message by multicast when the message can be transmitted (step S1203).
- the gateway device 1003 starts the remote activation of the server device 1005 via the second network 1002, and the server device 1005 actually starts the first operation. It is possible to collect the startup time until communication is possible via the network 1001.
- FIG. 12 is a flowchart showing the flow of the stream transmission process of the server device according to the first embodiment of the present invention. Specifically, FIG. 12 is a flowchart illustrating a processing flow from when the server device 1005 receives a stream transmission request message from the client device 1004 to when the stream transmission processing starts.
- the stream transmission unit 1305 analyzes the stream transmission request message received by the first communication unit 1307 (step S1301). Then, the stream transmission unit 1305 transmits the stream transmission response message to the transmission source of the stream transmission request message (step S1302). Subsequently, the stream transmission unit 1305 transmits the requested content as a stream (step S1303).
- the stream transmission request message is an HTTP (HyperText Transfer Protocol) GET request including a URI (Uniform Resource Identifier) indicating the content.
- HTTP HyperText Transfer Protocol
- the server device 1005 describes a response to the HTTP GET request in the header, and transmits the content data as a stream in the payload.
- the gateway device 1003 can store the predicted time required for starting the server device 1005 as the predicted start time. .
- the client device 1004 streams the content of the server device 1005, even if the server device 1005 is not in the active state, the client device 1004 can continue processing, and the user can predict the server device 1005. It becomes possible to notify the activation time, and the user's anxiety can be resolved.
- the gateway device 1003 remotely activates the target device and the predicted activation time of the target device when the target device of the device discovery message is not activated.
- the response message including the information indicating the message can be returned to the client device 1004 on behalf of the target device. Therefore, the client device 1004 can execute various processes based on the predicted activation time of the target device, and can stably cooperate with the target device.
- the client device 1004 can notify the user of the predicted activation time, and can suppress the user's erroneous operation. Further, since the client device 1004 can transmit a message to the target device after the predicted activation time has elapsed, it is possible to stably cooperate with the target device.
- FIG. 13 is a diagram showing an outline of the device cooperation network system 2000 according to Embodiment 2 of the present invention.
- the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
- the device cooperation network system 2000 includes a first server device 2005 a and a second server device 2005 b instead of the server device 1005.
- the gateway device 1003 and the client device 1004 according to the present embodiment have the same functional configuration as that of the first embodiment.
- the first server device 2005a and the second server device 2005b have the same functional configuration as the server device 1005 according to the first embodiment. Therefore, description of functional configurations of the gateway device 1003, the client device 1004, the first server device 2005a, and the second server device 2005b according to the present embodiment is omitted.
- FIG. 14 is a sequence diagram showing a flow of information in the device cooperation network system 2000 according to Embodiment 2 of the present invention.
- the same processes as those in FIG. 7 are denoted by the same reference numerals, and the description thereof is omitted.
- FIG. 14 illustrates a case where the first server device 2005a and the second server device 2005b are in a non-activated state as an initial state.
- the device cooperation processing unit 1201 of the client device 1004 sends a device discovery message for discovering a device satisfying an arbitrary requirement to the devices on the first network 1001 (the gateway device 1003, the first server device 2005a, and the first device). 2 server device 2005b) by broadcast (step S201). Note that the first server device 2005a and the second server device 2005b cannot receive a device discovery message because they are in a non-activated state.
- the activation state management unit 1103 of the gateway device 1003 confirms whether or not the target device that is a device that satisfies the requirements indicated by the device discovery message is in the activated state.
- the activation state management unit 1103 extracts the first server device 2005a and the second server device 2005b as target devices. Then, the activation state management unit 1103 confirms whether or not the first server device 2005a and the second server device 2005b are activated.
- the remote start control unit 1105 Since a plurality of target devices are extracted, even if each target device (first server device 2005a or second server device 2005b) is in a non-starting state, the remote start control unit 1105 Does not send a remote activation request to each target device. That is, the remote activation control unit 1105 remotely activates the target device when there is one target device, and does not remotely activate the target device when there are a plurality of target devices.
- the proxy response unit 1109 of the gateway device 1003 transmits a first proxy response message including information indicating the predicted activation time to the client device 1004 that is the transmission source of the device discovery message, on behalf of the first server device 2005a. (Step S202).
- the proxy response unit 1109 transmits a second proxy response message including information indicating the predicted activation time to the client device 1004 on behalf of the second server device 2005b (step S203).
- the client device 1004 selects one target device from the plurality of target devices indicated by the plurality of response messages (step S204).
- the client device 1004 selects the first server device 2005a.
- the device cooperation processing unit 1201 of the client device 1004 broadcasts a device discovery message for discovering the selected target device (first server device 2005a) (step S205). That is, when the device cooperation processing unit 1201 receives a plurality of response messages, the device cooperation processing unit 1201 generates a device discovery message for discovering one target device selected from the plurality of target devices indicated by the plurality of response messages. , To the device on the first network 1001.
- FIG. 15 is a flowchart showing a processing flow of the gateway device 1003 according to the second embodiment of the present invention. Specifically, FIG. 15 is a flowchart showing a flow of processing from when the gateway device 1003 detects a device discovery message until it stores the predicted activation time in the device information list 1108.
- FIG. 15 processes similar to those in FIG. 8 are denoted by the same reference numerals, and description thereof is omitted.
- step S1001 the activation state management unit 1103 confirms whether there are a plurality of target devices that satisfy the requirements indicated by the device discovery message (step S2001).
- step S2001 the processing in steps S1002 to S1009 is executed as in the first embodiment.
- step S2001 when there are a plurality of target devices (Yes in step S2001), one target device is selected from the plurality of target devices (step S2002). Subsequently, the activation state management unit 1103 confirms the activation state of the selected target device (step S2003). If the selected target device is in the activated state (Yes in step S2004), the process proceeds to step S2007.
- the proxy response unit 1109 creates a proxy response message (step S2005). Then, the proxy response unit 1109 transmits the created proxy response message to the device that has transmitted the device discovery message using the first communication unit 1101 (step S2006).
- the proxy response unit 1109 refers to the device information list 1108 to check whether there is a target device that has not yet been selected (step S2007). If there is a target device that has not yet been selected (Yes in step S2007), the process returns to step S2002. On the other hand, if there is no target device that has not yet been selected (No in step S2007), the process returns to step S1001.
- the gateway device 1003 transmits a proxy response message to the client device 1004, but the actual remote activation itself is not performed. Therefore, in the client device 1004, until the user selects one device from a plurality of target devices, the target device is not remotely activated in vain, and thus an increase in power consumption can be suppressed.
- FIG. 16 is a flowchart showing a processing flow of the client device 1004 according to the second embodiment of the present invention. Specifically, FIG. 16 is a flowchart showing a processing flow when the client device 1004 receives a plurality of response messages. In FIG. 16, processes similar to those in FIG. 9 are denoted by the same reference numerals and description thereof is omitted.
- the device cooperation processing unit 1201 stores the response message in the memory (step S2101).
- the device cooperation processing unit 1201 determines whether or not a predetermined time (for example, 10 seconds) has elapsed since the device discovery message was transmitted (step S2102).
- step S2102 when the predetermined time has not elapsed (No in step S2102), the process returns to step S1102. On the other hand, when the predetermined time has elapsed (Yes in step S2102), the device cooperation processing unit 1201 analyzes all the response messages stored in the memory (step S2103).
- the display unit 1203 displays a GUI (Graphical User Interface) that allows the user to select one target device from among the plurality of target devices indicated by the plurality of analyzed response messages (step S2104). . Further, when the predicted activation time is acquired from the analyzed response messages, the display unit 1203 displays the acquired estimated activation time in association with each target device (step S2105). Specifically, the display unit 1203 displays a GUI as shown in FIG. 17A or FIG. 17B, for example.
- GUI Graphic User Interface
- FIG. 17A and 17B are diagrams showing examples of information displayed by the client device according to Embodiment 2 of the present invention.
- the client device 1004 displays a device name, an activation state, an estimated activation time, and a selection button for each target device.
- the client device 1004 may further display the power consumption of each target device as shown in FIG. 17B.
- power consumption may be included in the response message.
- a target device with low power consumption can be selected from among a plurality of target devices, and energy saving can be realized.
- the client device 1004 receives an instruction for selecting one device from the displayed devices from the user (step S2106). After that, the device cooperation processing unit 1201 determines whether or not the selected target device is in an activated state from the presence / absence of information indicating the estimated activation time in the response message (step S2107).
- the device cooperation processing unit 1201 sends a device discovery message for finding the selected target device on the first network 1001. The broadcast is transmitted to the device (step S2108).
- the process is terminated as it is, and the process proceeds to the stream reproduction process.
- step S1508 the gateway device 1003 performs the same operation as that of the first embodiment by transmitting a device discovery message specifying the selected target device. That is, one target device that satisfies the requirements indicated by the device discovery message is remotely activated. Further, at this time, until the target device is activated, the client device 1004 can display a waiting time based on the estimated activation time indicated by the information included in the proxy response message on the screen.
- the target device is activated unnecessarily to save power. It is possible to suppress consumption.
- the device cooperation process can be continued while notifying the user of the predicted activation time.
- the device cooperation network system 2000 it is not necessary to remotely start all the target devices that are not in the activated state, and thus it is possible to suppress an increase in power consumption.
- the response message transmitted on behalf of the target device includes information indicating the predicted startup time, but further includes information indicating the prediction accuracy of the predicted startup time. May be.
- the activation time collection management unit 1107 may calculate the prediction accuracy based on the number of times the activation time of the target device is collected (hereinafter referred to as “collection frequency”). Specifically, for example, the activation time collection management unit 1107 may calculate the prediction accuracy so that the prediction accuracy increases as the number of collections increases. Further, for example, the activation time collection management unit 1107 may calculate the prediction accuracy by using the variance of the collected activation times.
- the device information list 1108 further stores the number of times of collection as shown in FIG.
- the client device 1004 can execute various processes based on the prediction accuracy, and can stably cooperate with the target device. Specifically, for example, when the prediction accuracy is low, the client device 1004 may further delay the timing of transmitting a message to the server device 1005 after the predicted activation time has elapsed. Further, the client device 1004 may display the prediction accuracy on the screen.
- the network participation message transmitted from the remotely activated target device may include information indicating whether the gateway device 1003 has been remotely activated.
- the activation time collection management unit 1107 may collect the activation time of the target device only when the network participation message indicates that the message has been remotely activated.
- the gateway device 1003 can collect the activation time only when the network participation message indicates that it is remotely activated. That is, the gateway device 1003 can prevent the activation time from being collected based on the network participation message transmitted when activated by an activation process other than remote activation. As a result, the activation time when remotely activated by the gateway device 1003 can be collected with high accuracy.
- the client device 1004 displays the predicted activation time on the screen, but it is not always necessary to display it.
- the client device 1004 may include an audio output unit that outputs audio indicating the predicted activation time. That is, the client device 1004 may include a notification unit that notifies the user of the predicted activation time.
- the predicted activation time is predicted when the activation time is collected. However, it is not necessarily predicted at such timing. For example, the predicted activation time may be predicted immediately before transmitting the proxy response message. In this case, the device information list 1108 may store the collected activation time itself, not the estimated activation time.
- Embodiments 1 and 2 the process for finding a server device that transmits a stream has been described.
- the present invention is not necessarily limited to such a process.
- the present invention may be applied to a process for discovering a client device.
- the display unit 1203 displays the predicted activation time itself, but it is necessary to display the predicted activation time itself. There is no.
- the display unit 1203 may display symbols such as “large”, “medium”, and “small” instead of the predicted activation time.
- the activation time collection management unit 1107 collects the activation time of the target device using the time when the target device starts activation and the time when the network participation message is received. However, the activation time of the target device may be collected based on the power consumption value of the target device. Specifically, the activation time collection management unit 1107 may collect the activation time of the target device based on, for example, a comparison result between a history of power consumption values of the target device and a predetermined pattern.
- the gateway device 1003 may include a power consumption measuring unit that measures the power consumption value of the target device. Further, the gateway device 1003 may acquire the power consumption value of the target device from the power consumption measuring device. For example, the power consumption measuring unit or the power consumption measuring device may measure the power consumption value by measuring the current value in an outlet or a distribution board provided in the building where the gateway device 1003 is installed. . At this time, the current value may be measured in units of an outlet, a breaker, or the entire building, for example.
- the gateway device 1003 includes the respective components illustrated in FIG. 2, but does not necessarily include all the components.
- the gateway device may be a gateway device 10 as shown in FIG.
- the gateway device 10 is a gateway device 10 for linking a plurality of devices on the first network, and finds a device that satisfies any requirement by monitoring messages flowing on the first network.
- the message monitoring unit 11 that detects a device discovery message for performing communication, and at least one target device that satisfies the requirements indicated in the detected device discovery message among a plurality of devices communicates on the first network.
- An activation state management unit 12 that confirms whether or not the activation state is a possible state, and a predicted activation time determination unit 13 that determines an estimated activation time that is predicted to be necessary for the target device to enter the activation state.
- a response message including information indicating the determined estimated start time is sent on behalf of the target device. Sonaere a proxy response unit 14 which signal to.
- the client device 1004 includes the respective components illustrated in FIG. 5, but does not necessarily include all the components.
- the client device 1004 is a communication device that cooperates with a device on the first network, and transmits a device discovery message for discovering a device that satisfies any requirement to the device on the first network.
- a response message that includes a device cooperation processing unit that receives a response message to the discovery message and that is predicted to be required for the target device that satisfies the requirements indicated by the device discovery message to be in the activated state. If included, the predetermined process may be executed based on the predicted activation time.
- part or all of the components included in the gateway device 1003, the client device 1004, or the server device 1005 in the first or second embodiment are configured by one system LSI (Large Scale Integration: large-scale integrated circuit). It may be.
- the gateway device 1003 may be configured as a system LSI having a message monitoring unit, an activation state management unit, a predicted activation time determination unit, and a proxy response unit.
- the system LSI is an ultra-multifunctional LSI manufactured by integrating a plurality of components on a single chip. Specifically, a microprocessor, a ROM (Read Only Memory), a RAM (Random Access Memory), etc. It is a computer system comprised including. A computer program is stored in the ROM. The system LSI achieves its functions by the microprocessor operating according to the computer program.
- system LSI may be called IC, LSI, super LSI, or ultra LSI depending on the degree of integration.
- method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible.
- An FPGA Field Programmable Gate Array
- reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.
- the present invention can be realized not only as a gateway device including such a characteristic processing unit, but also as a device cooperation method using the characteristic processing unit included in the gateway device as a step. . It can also be realized as a computer program that causes a computer to execute each characteristic step included in the device cooperation method. Needless to say, such a computer program can be distributed via a computer-readable non-transitory recording medium such as a CD-ROM or a communication network such as the Internet.
- the device cooperation network system according to the present invention is useful, for example, as an AV system that links AV devices on a home network.
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Abstract
Description
図1は、本発明の実施の形態1に係る機器連携ネットワークシステム1000の概要を示す図である。図1に示すように、機器連携ネットワークシステム1000は、ゲートウェイ機器1003と、クライアント機器1004と、サーバ機器1005とを備える。
次に、本発明の実施の形態2について説明する。
11、1106 メッセージ監視部
12、1103 起動状態管理部
13 予測起動時間決定部
14、1109 代理応答部
1105 遠隔起動制御部
1000、2000 機器連携ネットワークシステム
1001 第1のネットワーク
1002 第2のネットワーク
1003 ゲートウェイ機器
1004 クライアント機器
1005 サーバ機器
1101、1307 第1の通信部
1102、1308 第2の通信部
1104 起動状態リスト
1107 起動時間収集管理部
1108 機器情報リスト
1110、1309 記憶部
1201、1303 機器連携処理部
1202 ストリーム再生部
1203 表示部
1204 通信部
1301 遠隔起動受付部
1302 起動部
1304 機器情報
1305 ストリーム送信部
1306 コンテンツ
2005a 第1のサーバ機器
2005b 第2のサーバ機器
Claims (15)
- 第1のネットワーク上の複数の機器を連携させるためのゲートウェイ装置であって、
前記第1のネットワーク上を流れるメッセージを監視することにより、任意の要件を満たす機器を発見するための機器発見メッセージを検出するメッセージ監視部と、
前記複数の機器のうち、検出された前記機器発見メッセージに示されている要件を満たす少なくとも1つの対象機器が、前記第1のネットワーク上で通信できる状態である起動状態であるかどうかを確認する起動状態管理部と、
前記対象機器が起動状態となるために必要と予測される時間である予測起動時間を決定する予測起動時間決定部と、
前記対象機器が起動状態でない場合に、決定された前記予測起動時間を示す情報を含む応答メッセージを、前記対象機器の代理で送信する代理応答部とを備える
ゲートウェイ装置。 - 前記ゲートウェイ装置は、さらに、
前記対象機器が起動を開始した時刻と、前記対象機器が前記第1のネットワーク上で通信可能な状態になったことを示すネットワーク参加メッセージを受信した時刻とを用いて、前記対象機器の起動時間を収集する起動時間収集部を備え、
前記予測起動時間決定部は、過去に収集された前記対象機器の起動時間に基づいて、前記予測起動時間を決定する
請求項1に記載のゲートウェイ装置。 - 前記予測起動時間決定部は、さらに、前記起動時間収集部によって前記対象機器の起動時間が収集された回数に基づいて、決定した前記予測起動時間の予測精度を算出し、
前記応答メッセージは、さらに、算出された前記予測精度を示す情報を含む
請求項2に記載のゲートウェイ装置。 - 前記ゲートウェイ装置は、さらに、
前記応答メッセージが送信される際に、第2のネットワークを介して前記対象機器を遠隔起動する遠隔起動制御部を備え、
前記起動時間収集部は、前記対象機器の遠隔起動を開始した時刻を、前記対象機器が起動を開始した時刻として用いて、前記対象機器の起動時間を収集する
請求項2又は3に記載のゲートウェイ装置。 - 前記ネットワーク参加メッセージは、前記対象機器が、前記ゲートウェイ装置によって遠隔起動されたか否かを示す情報を含み、
前記起動時間収集部は、前記ネットワーク参加メッセージが遠隔起動されたことを示す場合にのみ、前記対象機器の起動時間を収集する
請求項4に記載のゲートウェイ装置。 - 前記遠隔起動制御部は、前記対象機器が1台である場合に、前記対象機器を遠隔起動し、前記対象機器が複数台である場合に、前記対象機器を遠隔起動しない
請求項4又は5に記載のゲートウェイ装置。 - 前記ゲートウェイ装置は、さらに、
前記対象機器の消費電力値に基づいて、前記対象機器の起動時間を収集する起動時間収集部を備え、
前記予測起動時間決定部は、過去に収集された前記対象機器の起動時間に基づいて、前記予測起動時間を決定する
請求項1に記載のゲートウェイ装置。 - 第1のネットワーク上の機器と連携する通信装置であって、
任意の要件を満たす機器を発見するための機器発見メッセージを、前記第1のネットワーク上の機器に送信し、前記機器発見メッセージに対する応答メッセージを受信する機器連携処理部を備え、
前記通信装置は、前記機器発見メッセージが示す要件を満たす対象機器が起動状態となるために必要と予測される時間である予測起動時間が、受信された前記応答メッセージに含まれている場合に、前記予測起動時間に基づいて少なくとも1つの所定処理を実行する
通信装置。 - 前記通信装置は、さらに、
受信された前記応答メッセージに予測起動時間が含まれている場合に、前記予測起動時間をユーザに通知する処理を、前記所定処理として実行する通知部を備える
請求項8に記載の通信装置。 - 前記機器連携処理部は、受信された前記応答メッセージに予測起動時間が含まれている場合に、前記応答メッセージを受信した時刻から前記予測起動時間が経過した後に、前記応答メッセージが示す対象機器に、前記対象機器と連携するためのメッセージを送信する処理を、前記所定処理として実行する
請求項8又は9に記載の通信装置。 - 前記機器連携処理部は、複数の前記応答メッセージを受信した場合に、さらに、複数の前記応答メッセージが示す複数台の対象機器の中から選択された1台の対象機器を発見するための機器発見メッセージを、前記第1のネットワーク上の機器に送信する
請求項8~10のいずれか1項に記載の通信装置。 - 請求項1~7のいずれか1項に記載のゲートウェイ装置と、
請求項8~11のいずれか1項に記載の通信装置とを備える
機器連携ネットワークシステム。 - 前記ゲートウェイ装置は、集積回路として構成されている
請求項1~7のいずれか1項に記載のゲートウェイ装置。 - 第1のネットワーク上の複数の機器を連携させるための機器連携方法であって、
前記第1のネットワーク上を流れるメッセージを監視することにより、任意の要件を満たす機器を発見するための機器発見メッセージを検出するメッセージ監視ステップと、
前記複数の機器のうち、検出された前記機器発見メッセージに示されている要件を満たす少なくとも1台の対象機器が、前記第1のネットワーク上で通信できる状態である起動状態であるかどうかを確認する起動状態管理ステップと、
前記対象機器が起動状態となるために必要と予測される時間である予測起動時間を決定する予測起動時間決定ステップと、
前記対象機器が起動状態でない場合に、決定された前記予測起動時間を示す情報を含む応答メッセージを、前記対象機器の代理で送信する代理応答ステップとを含む
機器連携方法。 - 請求項14に記載の機器連携方法をコンピュータに実行させるためのプログラム。
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JP2012541750A JP5728020B2 (ja) | 2010-11-04 | 2011-11-02 | ゲートウェイ装置、機器連携ネットワークシステム、及び機器連携方法 |
US13/582,799 US8874738B2 (en) | 2010-11-04 | 2011-11-02 | Gateway apparatus, communication apparatus, apparatus co-operation network system, and apparatus co-operation method |
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US14/500,071 Division US9386102B2 (en) | 2010-11-04 | 2014-09-29 | Gateway apparatus, communication apparatus, apparatus co-operation network system, and apparatus co-operation method |
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