JP2019075768A - Power supply control device, control method, control program, and control system - Google Patents

Abstract

To provide a power supply control device, power supply control method, power supply control system, and power supply control program that can stably operate a PoE power feeding device even if it is connected with a lot of connection apparatuses under it.SOLUTION: A first power supply output unit 160 outputs power for inputting into a PoE power feeding device 200, a communication unit 130 communicates with the PoE power feeding device 200, a monitoring unit 111 monitors normal operation of the PoE power feeding device 200 and a PoE connection apparatus 300 via the communication unit 130, a power supply control unit 112 reactivates the PoE power feeding device 200 if the monitoring unit 111 determines that the PoE power feeding device 200 is not normal, and a PoE power supply control unit 210 reactivates the PoE connection apparatus 300 if the monitoring unit 111 determines that the PoE connection apparatus 300 is not normal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply control device, a power supply control method, a power supply control program, and a power supply control system, in particular, a PoE power control means for controlling a PoE power to connected devices connected under the control device, and the connected devices connected. And controlling the power supply to the PoE power feeding device provided with the communication relay means for relaying the communication.

  Conventionally, it is known to use a twisted pair cable used in a computer network to provide a PoE feeding device that supplies power while connecting to a connected access point, a PoE (Power over Ethernet) compatible device such as a network camera, etc. ing.

  Since the power supply and the network connection can be simultaneously performed only by connecting the PoE device to the PoE feeding device via the twisted pair cable, the power supply work for the PoE device can be made unnecessary.

  Also, in recent years, a PoE feeding device with a diagnostic function has been developed that has a function of diagnosing the normality of a PoE-compatible IP (Internet Protocol) device connected to a PoE feeding device as well as supplying power (for example, , Patent Document 1). By using such a PoE feeder with a diagnostic function, it is possible to monitor the connected PoE-compatible IP device and restore it in the event of a failure.

FIG. 12 shows a PoE power feeding device having a function of diagnosing the normality of the connected IP device.
As shown in FIG. 12, the PoE power feeding device 1 is a PoE hub that relays an IP packet between the IP network 20 and the IP device 30 connected under the IP network, and the IP device diagnosis unit 10 and uplink side A port 11, an IP packet relay control unit 12, a downlink PoE port 13, a power supply control unit 14, a PoE power supply unit 15, and a reference data storage unit 16 are provided.

The uplink side port 11 is for connecting to a device on the side of the upper IP network 20 such as a router, a gateway, or an ONU (Optical Network Unit).
The IP packet relay control unit 12 relays IP packets between the uplink side port 11 and the plurality of downlink side PoE ports 13-1 to 13-n, and the number or data of the number of relayed IP packets The amount is measured, and the measured value is output to the IP device diagnosis unit 10.

  The IP devices 30-1 to 30-n are connected to the downlink side PoE ports 13-1 to 13-n, and output power from the PoE power supply unit 15 to the IP device 30 connected.

The power supply control unit 14 is for converting the power received from the AC 100 V outlet, which is a commercial power supply, into a predetermined operating voltage and supplying it to each unit in the PoE power supply device 1.
The PoE power supply unit 15 converts the power supplied from the power supply control unit 14 into PoE power and outputs the power to each downlink side PoE port 13 while measuring the amount of power supply and measuring the measured value as an IP device diagnosis unit 10 To notify. Further, the PoE feeding unit 15 can control ON / OFF of feeding according to an instruction from the IP device diagnosis unit 10.

  The reference data storage unit 16 stores reference data necessary for diagnosis output from the IP device diagnostic unit 10 and outputs predetermined reference data stored in response to a request from the IP device diagnostic unit 10. belongs to.

  The IP device diagnosis unit 10 measures the IP device measured by the IP packet relay control unit 12 at the measurement timing for each downlink side PoE port 13 stored in the reference data storage unit 16 for the downlink side PoE port 13 to be diagnosed. The data amount per unit time input from 30 and the PoE feed amount value measured by the PoE feed unit 15 are compared with the reference data stored in the reference data storage unit 16 and stored in the reference data It is determined whether or not a certain normal value range is satisfied.

  When the IP device diagnostic unit 10 determines that the normal value range stored in the reference data is not satisfied, it is determined that the IP device 30 connected to the downlink PoE port 13 may have an abnormality. Alarm information is notified to the notification destination stored in the reference data storage unit 16.

  Furthermore, when there is a downlink-side PoE port 13 determined to have a possibility of abnormality, the PoE feeding to the downlink-side PoE port 13 determined to have a possibility of abnormality is temporarily interrupted, The IP device diagnostic unit 10 outputs an instruction to connect and supply power to the PoE power supply unit 15.

  As a result, PoE feeding is temporarily interrupted for the IP device 30 connected to the downlink-side PoE port 13 determined to have the possibility of abnormality, and then PoE feeding is connected again to supply power. By doing this, the IP device 30 can be rebooted and returned to normal.

Unexamined-Japanese-Patent No. 2017-17750

  However, since the flow of packets is concentrated by the plurality of IP devices connected to the downlink PoE port, it is conceivable that the PoE feeding device 1 freezes. When the PoE power feeding device 1 freezes, the connected IP device 30 can not normally perform communication and power feeding, so there is a problem that stable operation of the network using the PoE power feeding device can not be performed.

  Further, when there are many IP devices 30 to be connected, by further connecting a plurality of PoE power feeding devices n under the control of the PoE power feeding device 1, the number of terminals of the IP devices 30 to be connected can be increased. However, in the top layer PoE feeding device 1 connected with the plurality of PoE feeding devices n and the plurality of IP devices 30 under control, packets of the plurality of IP devices 30 connected to the PoE feeding device n are concentrated at a stretch. If the top layer PoE feeding apparatus 1 freezes, there is a problem that communication and feeding affect many IP devices 30.

  The present invention has been made in view of such a point, and a power supply control device, a power control method, a power control system, and a power supply capable of stably operating a PoE power feeding device even if many connected devices are connected subordinately The purpose is to provide a control program.

  In the present invention, in order to solve the above problems, the present invention includes PoE power control means for controlling the PoE power supply to the connected device connected thereunder, and communication relay means for relaying communication with the connected device connected. In a power supply control device for controlling a power supply to a PoE power feeding device, a first power output means for outputting power for input to the PoE power feeding device, a communication means for communicating with the PoE power feeding device, and the communication means And monitoring means for monitoring normal operation of the PoE power feeding device and the connection device, and recovering the PoE power feeding device for recovering the PoE power feeding device when the monitoring means determines that the PoE power feeding device is not normal. Means, and connected device recovery means for recovering the connected device when the monitoring means determines that the connected device is not normal. Power control device according to claim bets is provided.

  Thereby, the first power output means outputs power for input to the PoE power feeding device, the communication means communicates with the PoE power feeding device, and the monitoring means is the PoE power feeding device and the connecting device via the communication means. The PoE power feeding device restoration means restores the PoE power feeding device when the monitoring means judges that the PoE power feeding device is not normal, and the connected device restoration means causes the connected equipment to be restored by the monitoring means. If it is determined not to be normal, restore the connected device.

  Further, according to the present invention, a PoE power supply device comprising a PoE power control means for controlling a PoE power supply to a connected device connected thereunder, and a communication relay means for relaying communication with the connected device connected thereto. In the power supply control method for controlling the power supply, the first power supply output means outputs the power for inputting to the PoE power feeding device, the communication means communicates with the PoE power feeding device, and the monitoring means Monitoring the normal operation of the PoE power feeding device and the connection device via the communication means; and the PoE power feeding device restoration means is configured to determine that the PoE power feeding device is not normal by the monitoring means. The step of recovering the PoE power feeding device, and the connected device recovery means, when the monitoring means determines that the connected device is not normal, Power control method characterized by comprising the step of recovering the connection device is provided.

  Thereby, the first power output means outputs power for input to the PoE power feeding device, the communication means communicates with the PoE power feeding device, and the monitoring means is the PoE power feeding device and the connecting device via the communication means. The PoE power feeding device restoration means restores the PoE power feeding device when the monitoring means judges that the PoE power feeding device is not normal, and the connected device restoration means causes the connected equipment to be restored by the monitoring means. If it is determined not to be normal, restore the connected device.

  Further, according to the present invention, a PoE power supply device comprising a PoE power control means for controlling a PoE power supply to a connected device connected thereunder, and a communication relay means for relaying communication with the connected device connected thereto. In a power control program for controlling a power source, a first power output means for outputting power for inputting a computer to the PoE power feeding device, a communication means for communicating with the PoE power feeding device, the PoE via the communication means PoE power feeding device restoration means for recovering the PoE power feeding device when it is judged that the PoE power feeding device is not normal by the power feeding device and the monitoring means for monitoring normal operation of the connection device, the monitoring means Functions as a connected device recovery unit that restores the connected device when it is determined that the connected device is not normal. Power supply control program, characterized in that there is provided.

  Thereby, the first power output means outputs power for input to the PoE power feeding device, the communication means communicates with the PoE power feeding device, and the monitoring means is the PoE power feeding device and the connecting device via the communication means. The PoE power feeding device restoration means restores the PoE power feeding device when the monitoring means judges that the PoE power feeding device is not normal, and the connected device restoration means causes the connected equipment to be restored by the monitoring means. If it is determined not to be normal, restore the connected device.

  Further, in the present invention, a PoE power supply device comprising: a PoE power control means for controlling a PoE power supply to a connected device connected thereunder; and a communication relay means for relaying communication with the connected device connected; First power supply output means for outputting power for input to the PoE feeder;

  It is determined that the PoE feeding device is not normal by the communication means for communicating with the PoE feeding device, the monitoring means monitoring the normal operation of the PoE feeding device and the connection device via the communication means, and the monitoring means And a connected device recovery unit configured to recover the connected device when the connected device is determined not to be normal by the monitoring unit. A power control system is provided, characterized by comprising a power control device.

  Thus, the PoE power supply control unit controls the PoE power supply to the connection device connected under the control of the PoE power supply device, and the communication relay unit relays communication with the connected connection device, and the power supply control device The first power supply output means outputs power for input to the power feeding device, the communication means communicates with the PoE power feeding device, and the monitoring means monitors normal operation of the PoE power feeding device and the connected device through the communication means, When the monitoring means determines that the PoE power feeding device is not normal, the PoE power feeding device is restored by the PoE power feeding device restoration means, and when the monitoring means determines that the connected device is not normal, the connected device is connected Device recovery means recover.

  According to the present invention, according to the power supply control device, the power supply control method, the power supply control program, and the power supply control system, the first power supply output means outputs power for input to the PoE power feeding device, and the communication means is PoE power feeding When communication is performed with the device, the monitoring means monitors normal operation of the PoE power feeding device and the connection device via the communication means, and the PoE power feeding device recovery means determines that the PoE power feeding device is not normal by the monitoring means The PoE power supply device is restored, and the connection device recovery means restores the connection device when the connected device is determined not to be normal by the monitoring means. Connection devices can be operated stably.

It is a block diagram showing the details of the power supply control device concerning a 1st embodiment. It is a figure which shows the concept of the whole power supply control system to which the power supply control apparatus was connected. It is a block diagram which shows the detail of a control part. It is a block diagram which shows the detail of an information storage part. It is a figure which shows the example of a data structure of the main body connection apparatus information which a main body connection apparatus information storage part memorize | stores. It is a figure which shows the example of a data structure of the PoE connecting apparatus information which a PoE connecting apparatus information storage part memorize | stores. It is a flowchart which shows the process from a power supply control apparatus starting monitoring until it performs power supply control. It is a flow chart which shows processing from performing power control after judging that a power control device is not operating normally. It is a flowchart which shows the process from performing a power supply ON / OFF control, after a power supply control apparatus receives the power supply ON / OFF control signal for carrying out remote control of the PoE connecting apparatus in a network. It is a block diagram which shows the detail of the power supply control apparatus which concerns on 2nd Embodiment. It is a figure showing the concept of the whole power control system to which the power control device was connected. It is a PoE feeding device having a function of diagnosing the normality of the connected IP device.

First Embodiment
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing the details of the power control apparatus according to the first embodiment.

  As shown in FIG. 1, the power supply control device 100 includes a control unit 110, an information storage unit 120, a communication unit 130, a power feeding unit 140, a power supply unit 150, a first power supply output unit 160, and a second power supply output unit 170. ing.

  The power supply control device 100 controls power input from an external power supply such as a commercial power supply via the power supply unit 150, and is connected to the first power supply output unit 160 and the second power supply output unit 170. It is an apparatus for stably operating the main body connection device 200 that is the router 400 and the PoE connection device 300 (not shown) connected under the control of the PoE power supply device 200.

  The control unit 110 is connected to the information storage unit 120, the communication unit 130, and the power supply unit 140, monitors the operation of the network devices connected via the communication unit 130, and the connected network devices operate normally. It is for judging whether or not there is.

  In addition, when the network device connected via the communication unit 130 is not in normal operation, processing and an instruction for normalizing the network device not in normal operation are performed. Details of the control unit 110 will be described later.

  The information storage unit 120 is connected to the control unit 110, and is connected to the PoE power feeding device 200 supplied with power by the power control device 100, each information of the main body connection device which is the router 400, and the PoE power feeding device 200. The information of each PoE connection device 300 is stored. Details of the information storage unit 120 will be described later.

  The communication unit 130 is connected to the control unit 110. The communication unit 130 is a communication device provided with a network interface such as a wired or wireless LAN (Local Area Network), and the data sent from the control unit 110 can be used as a network interface. It can be sent to connected network devices. Also, it can receive data transmitted from a network device connected to the network interface and send it to the control unit 110.

  The power supply unit 140 is connected to the control unit 110, the power supply unit 150, the first power supply output unit 160, and the second power supply output unit 170, and receives power input from an external power supply such as a commercial power supply via the power supply unit 150. According to an instruction from the control unit 110, power supply to the first power output unit 160 and the second power output unit 170 is controlled.

  The power supply unit 150 is connected to the power supply unit 140, and supplies power input from an external power supply outlet such as a commercial power supply to each unit provided in the power supply control device 100.

  The first power supply output unit 160 is connected to the power supply unit 140, and is for outputting the power supplied from the power supply unit 140. Specifically, the first power supply output unit 160 is a plug receptacle for the wiring plug-in connector, and the plug-in plug for the wiring plug-in provided in the connected PoE power supply apparatus 200 or the router 400 is inserted. Power supplied via the power supply control device 100 is supplied to the main body connection device.

  The second power supply output unit 170 is connected to the power supply unit 140, and is for outputting the power supplied from the power supply unit 140. Specifically, the second power supply output unit 170 is a plug receptacle for the wiring plug-in connector, and the plug-in plug for the wiring plug-in provided in the connected PoE power supply apparatus 200 or the router 400 is inserted. Power supplied via the power supply control device 100 is supplied to the main body connection device.

FIG. 2 is a diagram showing the concept of the entire power control system to which the power control device is connected.
As shown in FIG. 2, the power control system includes a power control device 100, a PoE power feeding device 200, a PoE connection device 300, and a router 400, and the devices are connected by a network cable and connected to the Internet 500. .

  The router 400 is used as a gateway for connecting to the Internet 500, and the plug of the wiring plug-in for supplying power to the router 400 is the first power supply included in the power control apparatus 100. The router 400 is connected to the output unit 160 or the second power output unit 170 and receives power supply from the power control device 100 to operate.

  Here, for convenience, it is assumed that the router 400 is connected to the first power supply output unit 160. The router 400 may be another device such as a gateway device or an ONU (Optical Network Unit).

  In addition, the router 400 is connected to the uplink-side port of the PoE power feeding device 200 via a network cable, and performs communication with the PoE power feeding device 200 and the PoE connection device 300 connected under the PoE power feeding device 200. it can.

  The power supply unit 150 included in the power supply control device 100 is connected to an external power supply 600 such as a commercial power supply, and can supply power to the main body connecting device connected to the power supply control device 100. The communication unit 130 included in the power control device 100 is connected to the downlink port included in the PoE power feeding device 200 via a network cable, and each PoE connection device 300 via the PoE power feeding device 200 and the router 400, and the Internet 500. Can be connected to

  The PoE power feeding device 200 is a device having a communication relay function of relaying communication with the PoE connection device 300 connected to the subordinate and a power supply function of supplying power to the PoE connection device 300 connected to the subordinate. .

  The plug of the wiring plug-in for supplying power to the PoE power feeding apparatus 200 is connected to the first power output unit 160 or the second power output section 170 provided in the power control apparatus 100, and the power control apparatus 100 is provided. The PoE power supply apparatus 200 operates in response to the power supply from the. Here, for convenience, it is assumed that the PoE power feeding device 200 is connected to the second power output unit 170.

  Further, the PoE power feeding device 200 is internally provided with a PoE power control unit 210. The power supply to the PoE connection device 300 connected under the PoE power feeding device 200 is controlled by the PoE power control unit 210, and the control unit 210 controls the power interruption and connection for each PoE connection device 300 as necessary. Controlled by

  The PoE connection device 300 is connected to the downlink side port of the PoE power feeding device 200 through a network cable, and can be connected to each PoE connection device 300 and the Internet 500 through the PoE power feeding device 200 and the router 400. .

  Further, when the PoE connection device 300 is a device compatible with PoE feeding, by using a twisted pair cable for the PoE feeding device 200, power supply and information communication can be simultaneously performed.

  The PoE connection device 300 is, for example, an access point 310 or 320 compatible with PoE feeding, a web camera 330, and an IP phone 340, and is connected to the PoE feeding device 200 via a twisted pair cable. Power supply, and is connected to the network constructed via the PoE power supply apparatus 200.

  As described above, the power supply control device 100, the PoE connection device 300, and the router 400 are connected to the PoE power feeding device 200 via the network cable, and a network is constructed by each device, and information is communicated with each other. Can. Each device can also be connected to the Internet 500 via the router 400.

Next, an outline for stably operating the PoE power feeding apparatus 200 and the router 400 will be described.
In the PoE power feeding apparatus 200 to which a plurality of PoE connection devices 300 are connected in the network configuration as shown in FIG. 2, communication packets by the PoE connection devices 300 are concentrated. Further, since the PoE power feeding apparatus 200 is connected to the Internet 500 via the router 400, communication packets will be concentrated in the router 400 as well.

  When the PoE power supply apparatus 200 freezes due to the concentration of communication packets, the PoE connection apparatus 300 connected under the PoE power supply apparatus 200 is delayed in the power supply and the information communication, and the PoE connection apparatus 300 It will not function properly, and it will not be possible to operate the entire constructed network stably.

  In addition, when the router 400 freezes due to the concentration of communication packets, the routing process performed by the router 400 and the process of connecting to the Internet 500 are delayed, and connected under the PoE power feeding device 200 and the PoE power feeding device 200. The failed PoE connection device 300 will not function properly. That is, in order to operate the network device connected to the constructed network stably, the PoE feeding device 200 and the router 400 have to be operated stably.

  First, the control unit 110 included in the power control device 100 monitors the normal operation of the network device connected via the communication unit 130, and determines whether the connected network device is operating normally.

  Here, it is assumed that the control unit 110 determines that the router 400 is not operating normally. The control unit 110 outputs instruction information to temporarily shut off the supply of power to the first power supply output unit 160 to the power supply unit 140 in order to operate the router 400 normally. As a result, the power supply unit 140 cuts off the supply of power to the first power supply output unit 160, and the router 400 is forcibly shut down.

  After that, the control unit 110 outputs instruction information for starting supply of power to the first power supply output unit 160 again at predetermined intervals, to the power supply unit 140. As a result, the router 400 is restarted, and the power control device 100 can operate the router 400 normally.

  Next, consider the case where the control unit 110 determines that the PoE power supply apparatus 200 is not operating normally. The control unit 110 outputs instruction information for temporarily interrupting the supply of power to the second power supply output unit 170 to the power supply unit 140 in order to operate the PoE power supply apparatus 200 normally. As a result, the power supply unit 140 shuts off the supply of power to the second power supply output unit 170, and the PoE power supply apparatus 200 is forcibly shut down.

  After that, the control unit 110 outputs instruction information for starting supply of power to the second power supply output unit 170 again at a predetermined interval, to the power supply unit 140. As a result, the PoE power feeding device 200 can be restarted, and the power control device 100 can operate the PoE power feeding device 200 normally.

  The reason that the router 400 or the PoE power supply device 200 does not operate normally is unlikely to cause a logical failure due to data corruption or a physical failure to damage the device itself, and freezes due to a sudden cause such as a large amount of communication packets flowing in It often happens.

  In such a case, normal operation is often returned simply by restarting the router 400 or the PoE power feeding device 200, and the power control device 100 temporarily supplies power to the router 400 or the PoE power feeding device 200 as described above. The router 400 or the PoE feeding device 200 can be restarted and operated normally only by interrupting and reconnection.

  Next, consider a case where the control unit 110 determines that the access point 310, which is the PoE connection device 300 connected under the PoE power feeding device 200, is not operating normally. The access point 310 can be normally operated normally by restarting as in the above-mentioned cause of the router 400 or the PoE power feeding device 200 not operating properly.

  However, since the access point 310 does not supply power directly by the power control device 100, the access point 310 can not be directly restarted by temporarily interrupting and reconnecting the power supply by the power supply unit 140. .

  Therefore, in order to operate the access point 310 normally, the control unit 110 communicates with the PoE power feeding device 200 via the communication unit 130, and temporarily accesses the PoE power control unit 210 included in the PoE power feeding device 200. It shuts off the power supply to the point 310 and outputs instruction information to start the power supply again. Thus, the access point 310 can be restarted and operated normally.

  Also, when the PoE connection device 300 does not automatically restart due to power interruption / reconnection like a computer, the control unit 110 temporarily interrupts power supply to the access point 310 for the PoE power control unit 210. The control unit 110 can also transmit a specific command to the PoE connection device 300 via the communication unit 130, such as a magic packet or the like, which outputs the instruction information to be performed later and which causes the computer to turn on itself remotely.

  By constructing a power control system as described above, the power control apparatus 100 monitors the normal operation of the PoE power feeding apparatus 200, the PoE connecting device 300, and the router 400, and if not operating normally, as necessary. The PoE power feeding device 200 and the router 400 directly connected to the power control device 100 can be restarted, and the PoE connecting device 300 can be restarted via the PoE power feeding device 200, so that the normal operation rate can be increased. . That is, even if the PoE feeder freezes, the PoE feeder and the connection device can be operated stably.

Also, by constructing the power control system as described above, the administrator can remotely control the power ON / OFF control of each device connected to the power control device 100.
Specifically, the administrator accesses the power control apparatus 100 from the cloud of the Internet 500 via the router 400 as a gateway.

  Since the control unit 110 included in the power control device 100 monitors the normal operation of the network device connected via the communication unit 130, it can grasp the operating status and the power ON / OFF state of the PoE connecting device 300. it can.

  Since the control unit 110 can perform power control of the PoE connection device 300 via the PoE power feeding device 200, the administrator transmits a power ON / OFF control signal of a specific PoE connection device 300 to the power control device 100. Thus, the control unit 110 can transmit a power ON / OFF control signal to the PoE power control unit 210 included in the PoE power feeding device 200 based on the received signal. As a result, the administrator can perform power on / off control of the PoE connection device 300 in the network established by the power control system by remote control.

FIG. 3 is a block diagram showing details of the control unit.
As shown in FIG. 3, the control unit 110 includes a monitoring unit 111 and a power control unit 112.

  The monitoring unit 111 is connected to the power supply control unit 112, the information storage unit 120, and the communication unit 130, and is connected to the PoE power feeding device 200 and the PoE power feeding device 200 via the communication unit 130. And for monitoring the normal operation of the router 400.

  Specifically, monitoring is periodically performed on the PoE power feeding device 200, the PoE connecting device 300 connected to the subordinate of the PoE power feeding device 200, and the IP address or host name assigned to the router 400 via the communication unit 130. The unit 111 transmits a packet by executing a Ping command used to confirm network communication.

  The IP address or host name required to execute the Ping command and transmit the packet is stored in the information storage unit 120, and the monitoring unit 111 refers to the information stored similarly to the information storage unit 120 as necessary. Then, the Ping command can be executed to transmit the packet.

  If there is a normal response from the main device connection device or the PoE connection device 300 to the Ping command executed by the monitoring unit 111, it is determined that the main device connection device or the PoE connection device 300 having a normal response is operating normally. If there is no response, it can be determined that the main connection device or the PoE connection device 300 that did not receive a normal response is not operating normally.

  The determination as to whether or not there is a normal response to the Ping command executed by the monitoring unit 111 is, for example, a prescribed response to the number of transmissions set for each main device connected device or PoE connected device 300 stored in the information storage unit 120. It is judged whether or not the number is satisfied.

  Further, the monitoring of the normal operation by the monitoring unit 111 is decided not only on the availability of the response by the execution of the Ping command but also on the PoE power feeding device 200, the PoE connecting device 300 connected under the PoE power feeding device 200, and the router 400 in advance. The short data can be set to be sent to the monitoring unit 111 in a cycle called “heartbeat”, and it can be received depending on whether or not the heartbeat transmitted from the main unit connected device or the PoE connected device 300 can be received without interruption. It can be determined whether or not the connected device 300 is operating normally.

  Specifically, when the monitoring unit 111 receives without interrupting the heartbeat of the main body connection device or the PoE connection device 300 via the communication unit 130, the main body connection device or the PoE connection device 300 operates normally. When it is determined that the heartbeat by the main body connection device or the PoE connection device 300 is interrupted, it can be determined that the main body connection device or the PoE connection device 300 is not operating normally.

  The monitoring unit 111 periodically monitors the main body connecting device or the PoE connecting device 300, and when it is determined that the main body connecting device or the PoE connecting device 300 is not operating normally, the main body connection not operating normally. The detailed information of the device or the PoE connection device 300 can be transmitted to the connected power control unit 112.

  The monitoring unit 111 monitored the normal operation of the PoE power feeding device 200, the PoE connecting device 300 connected under the control of the PoE power feeding device 200, and the router 400 via the communication unit 130, and determined that the normal operation was not performed. In this case, the information stored in the information storage unit 120 can provide warning means for notifying the administrator of each device that the device is not operating normally.

  For example, the administrator can be notified by mail by the information stored in the information storage unit 120, or the warning lamp provided in the power control device 100 may be turned on to notify an error.

  If the PoE connection device 300 connected to the PoE power feeding device 200 is a device not compatible with PoE power supply, power control of the PoE connection device 300 by the PoE power control unit 210 can not be performed, that is, operation by restart The administrator can be notified of a warning email immediately if it is determined that the system is not operating normally.

  The power control unit 112 is connected to the monitoring unit 111, the information storage unit 120, the communication unit 130, and the power feeding unit 140, and receives detailed information of the normally connected main unit connected device or the PoE connected device 300 received from the monitoring unit 111. Thus, power control processing of the main body connection device or the PoE connection device 300 is performed.

  Specifically, the power control unit 112 controls the power of the main connection device or PoE connection device 300 not operating normally according to the detailed information of the main connection device or PoE connection device 300 not operating normally that is received from the monitoring unit 111 The power control process is performed by determining whether the main body connection device directly connected to the device 100 or the PoE connection device 300 connected to the PoE power feeding device 200.

  More specifically, when the device not operating normally is the PoE power feeding device 200 directly supplied with power from the power control device 100 or the router 400, the first power output unit 160 or the second power source 140 by the power feeding unit 140 The power supply control unit 112 outputs, to the power supply unit 140, instruction information for interrupting and reconnecting the power supply to the power supply output unit 170. As a result, the power supply unit 140 can cut off and reconnect the power supply to the corresponding main body connected device, and can restart the main body connected device that is not operating normally.

  In addition, when the device not operating normally is the PoE connection device 300 supplied with power from the PoE power supply device 200, instruction information for interrupting power supply to the PoE connection device 300 by the PoE power control unit 210 and reconnection is provided. The power control unit 112 outputs the power to the PoE power control unit 210.

  As a result, the PoE power control unit 210 can shut off and reconnect the power supply to the corresponding PoE connection device 300, and can restart the PoE connection device 300 not operating normally.

  Further, the power control unit 112 performs PoE connection connected under the PoE power supply apparatus 200 according to the information stored in the information storage unit 120 according to a remote instruction from the administrator connected to the power supply control apparatus 100 via the Internet 500. In order to turn on / off the power of the device 300, a power on / off control signal can be transmitted to the PoE power control unit 210 included in the PoE power feeding device 200. As a result, the administrator can remotely control the power on / off of the PoE connection device 300 in the network established by the power control system.

FIG. 4 is a block diagram showing the details of the information storage unit.
As shown in FIG. 4, the information storage unit 120 includes a main unit connected device information storage unit 121 and a PoE connected device information storage unit 122.

  The main unit connection device information storage unit 121 is directly connected to the first power output unit 160 or the second power output unit 170 included in the power control device 100, and the detailed information of the main connection device to which the power control device 100 supplies power is It is memorized.

  Specifically, information for specifying on the network the router 400 connected to the first power supply output unit 160 and the PoE power feeding apparatus 200 connected to the second power supply output unit 170 is stored. Details of the stored information will be described later.

  The PoE connection device information storage unit 122 is connected to the PoE power feeding device 200 and stores detailed information of the PoE connection device 300 to which the PoE power feeding device 200 supplies power.

  Specifically, information for identifying the access points 310 and 320, the web camera 330, and the IP phone 340 connected under the PoE power feeding apparatus 200 on the network is stored. Details of the stored information will be described later.

FIG. 5 is a diagram showing an example data structure of main body connected device information stored in the main body connected device information storage unit.
As shown in FIG. 5, the main body connected device information is provided with columns of “key”, “output part information”, “main body connected device information”, and “monitoring information”, and “output” as “key” A column of "code" is provided, and "output unit name", "OFF delay", "re-enter", "ON delay", "at start", and "interlocking" are provided as "output unit information" The main device connected device information has the fields "Device connected device name", "MAC address", and "IP address", and "monitoring information" includes "Ping transmission interval", "transmission", The fields "No Answer", "Action", and "Emergency Contact" are provided. The pieces of information arranged in the vertical direction of each column are associated with each other to constitute a record of detailed information on the main body connected device.

A character string unique to the power output unit, which is identification information for identifying the power output unit, is set in the "output unit code" column.
A name unique to a power output unit for identifying a power output unit of the first power output unit 160 or the second power output unit 170 is set in the "output unit name" column. The delay time when the power supply output unit of the first power supply output unit 160 or the second power supply output unit 170 stops the power supply output is set in the “OFF delay” column. In the column "re-enter", the time from when the power supply output unit of the first power supply output unit 160 or the second power supply output unit 170 stops the power supply output to when it starts is set. In the "ON delay" column, set the time until the power supply output unit of the first power supply output unit 160 or the second power supply output unit 170 starts power supply output. In the "startup" column, the time until power supply output is started when the power control apparatus 100 is started is set. The "output code" of the power supply output unit of the first power supply output unit 160 or the second power supply output unit 170 which interlocks the operation is set in the "link" column.

  In the column "body connected device name", a name unique to the body connected device for identifying a connected device which is directly connected to the power control device 100 and to which power is supplied by the power control device 100 is set. In the "MAC address" column, a character string unique to the main body connection device for identifying the main body connection device is set. In the column of “IP address”, a value unique to the main body connection device for identifying the main body connection device is set by the router 400.

  In the "Ping transmission interval" column, the monitoring unit 111 executes a Ping command, and a numerical value that is a transmission interval of an echo request packet of ICMP is set. In the "send" column, the Ping command is executed to determine whether the device for which the monitoring unit 111 has executed the Ping command is operating normally, and the number of transmissions of ICMP echo request packets is set. There is. In the column of “No answer”, out of the number of transmissions set in “Transmission”, the number of non-responses for determining that the monitoring unit 111 is not operating normally is set. In the "Operation" column, an operation to be performed after determining that the monitoring unit 111 is not operating normally is set. In the "emergency contact" column, a contact to be notified when it is determined that the monitoring unit 111 is not operating normally is set.

  As a specific example of FIG. 5, in the output unit code 001, the name “first output unit” is set, and when the first power supply output unit 160 stops the power supply output, the power supply output is stopped without delay, The power supply is turned on 10 seconds after the power supply output unit 160 stops the power supply output, and the first power supply output unit 160 starts the power supply output one second after the power supply is turned on, and interlocks with the second power supply output unit 170 Operate without.

  In addition, the first power supply output unit 160 is connected to a router 400 named router, to which a MAC address "AA: AA: AA: AA: AA: AA" and an IP address "192.168.0.1" are allocated. It is done.

  In the router 400, when the monitoring unit 111 executes a Ping command, an ICMP echo request packet is transmitted every minute, and 10 of the transmitted ICMP echo request packets 10 does not respond. It is determined that the router 400 is not operating normally, the router 400 is restarted by the instruction of the power control unit 112, and the router 400 is addressed to "info@※※※.co.jp" which is an emergency contact point. The monitoring unit 111 notifies the administrator of the mail that the system is not operating normally.

FIG. 6 is a diagram showing an example data structure of PoE connection device information stored in the PoE connection device information storage unit.
As shown in FIG. 6, the PoE connection device information is provided with columns of “key”, “connected device information”, “monitoring information”, and “power control information”, and “key” is “PoE connection device”. A column of code is provided, and columns of "connected device name", "MAC address" and "IP address" are provided as "connected device information", and "ping transmission interval", "monitoring information" are provided. "Transmission", "No Answer", "Operation", "Emergency Contact", and "Monitoring Status" are provided, and "Power Control Information" includes "Power Status", "Power Schedule", "Control Method" And "PoE compatible" are provided. The pieces of information arranged in the vertical direction of each column are associated with each other to constitute a record of detailed information on the PoE connected device.

  In the “PoE connection device code” column, a character string unique to the PoE connection device 300, which is identification information for identifying the PoE connection device 300 connected under the control of the PoE power feeding device 200, is set.

  In the "connected device name" column, a unique name of the PoE connected device 300 for identifying the PoE connected device 300 connected under the control of the PoE power feeding device 200 is set. In the “MAC address” column, a character string unique to the PoE connection device 300 for identifying the PoE connection device 300 connected under the control of the PoE power supply device 200 is set. In the column of “IP address”, a numeric value unique to the PoE connection device 300 for identifying the PoE connection device 300 allocated by the router 400 and connected under the PoE power feeding device 200 is set.

  In the "Ping transmission interval" column, the monitoring unit 111 executes a Ping command, and a numerical value that is a transmission interval of an echo request packet of ICMP is set. In the "send" column, the Ping command is executed to determine whether the device for which the monitoring unit 111 has executed the Ping command is operating normally, and the number of transmissions of ICMP echo request packets is set. There is. In the column of “No answer”, out of the number of transmissions set in “Transmission”, the number of non-responses for determining that the monitoring unit 111 is not operating normally is set. In the "Operation" column, an operation to be performed after determining that the monitoring unit 111 is not operating normally is set. In the "emergency contact" column, a contact to be notified when it is determined that the monitoring unit 111 is not operating normally is set. In the "monitoring status" column, the current status in which the monitoring unit 111 is monitoring whether or not it is operating normally is set.

  In the "Power status" column, the power status of the PoE connection device 300 connected under the PoE power feeding device 200 is set, and "ON" if it is in operation, and "OFF" if it is not in operation. It is set. An operation schedule of the PoE connection device 300 connected under the PoE power feeding device 200 is set in the column of “power supply schedule”. The control method of the PoE connection device 300 connected under the PoE power feeding device 200 is set in the “Control method” column, and for example, can it be controlled by interruption / connection of power or a specific command like magic packet It is set whether it is necessary to start by. In the "PoE compatible" column, whether or not the PoE connected device 300 connected under the PoE power feeding device 200 is a PoE compatible device is set. If it is a PoE compatible device, "OK", a PoE compatible device If not, "impossible" is set.

  As a specific example of FIG. 6, in the PoE connection device code, a name of AP to which a MAC address "CC: CC: CC: CC: CC: CC: CC" and "192.168 ...." as an IP address is allocated Access point 310 is connected.

  In addition, when the monitoring unit 111 executes a Ping command to the access point 310, an ICMP echo request packet is transmitted every minute, and 5 of the transmitted ICMP echo request packet 5 does not respond. When the power control unit 112 transmits a control signal to the PoE power control unit 210 included in the PoE power supply apparatus 200, the access point 310 is restarted. The monitoring unit 111 notifies the administrator of an email that the access point 310 is not operating normally, addressed to "info @ ...", which is an emergency contact address, and the current monitoring status by the monitoring unit 111 is normal. It has been judged.

  In addition, the current power state of the access point 310 is "ON", the power is turned on at 6:00 AM, the control method of the access point 310 is controlled by power interruption / connection, and the access point 310 is a PoE compatible device .

FIG. 7 is a flowchart showing processing from when the power control device starts monitoring until when power control is performed. Hereinafter, the process shown in FIG. 7 will be described in order of step number.
[Step S11] The power control unit 100 confirms the operation of the main body connecting device and the PoE connecting device 300. Specifically, the monitoring unit 111 sets an interval for a specific device among the main device connection device and the PoE connection device 300 stored in the main device connection device information storage unit 121 and the PoE connection device information storage unit 122. The monitoring unit 111 executes the Ping command, and the echo request packet of ICMP is transmitted by the monitoring unit 111.

  Since the echo response packet is returned when the specific main body connection device and the PoE connection device 300 are operating normally and responding, the monitoring unit 111 receives the echo response packet and counts it as having response.

  In addition, since the echo response packet is not returned if the specific main body connection device and the PoE connection device 300 are not operating normally and do not respond, the monitoring unit 111 does not receive the echo response packet and counts as no response. .

  Alternatively, heartbeats are sent to the main device connection device and the PoE connection device in a predetermined cycle, and the normal operation of the main device connection device and the PoE connection device depends on whether the monitoring unit 111 receives the heartbeat periodically. Confirm.

  [Step S12] The power supply control device 100 determines whether or not the main body connection device and the PoE connection device are operating normally. Specifically, the monitoring unit 111 executes the Ping command, and the count number of response-less echo response packets to the number of echo request packets transmitted is stored in advance in the main unit connected device information storage unit 121 and the PoE connected device information storage unit 122. The monitoring unit 111 determines whether or not the main body connection device and the PoE connection device are operating normally, based on whether the stored values of “transmission” and “no answer” are satisfied.

  Alternatively, if the monitoring unit 111 receives the transmission of the heartbeat set in the main device connection device and the PoE connection device and the monitoring unit 111 receives the heartbeat without interruption, the device is operating normally. If it is determined that the heartbeat is interrupted, the monitoring unit 111 determines that the device is not operating normally.

  If the power control device 100 determines that the main body connection device or the PoE connection device is operating normally, the process proceeds to step S11, and the power supply control device is determined that the main body connection device or the PoE connection device is not operating normally. If the determination is 100, the process proceeds to step S13.

  [Step S13] The power control unit 100 controls the power of the main body connecting device or the PoE connecting device 300 not operating normally. Specifically, by temporarily interrupting the power supplied to the main body connecting device or the PoE connecting device 300 not operating normally, connecting again and supplying the power, the main body connecting device or the PoE connecting device Restart the As a result, the main body connection device or the PoE connection device operates normally.

  FIG. 8 is a flowchart showing processing from power control device determination to power control after it is determined that the power control device is not operating normally. Hereinafter, the process shown in FIG. 8 will be described in order of step number.

  [Step S21] The power supply control device 100 determines whether the device not operating normally is the main body connecting device or the device not operating normally is the PoE connecting device 300.

  Specifically, the power control unit 112 refers to the main unit connected device information storage unit 121 and the PoE connected device information storage unit 122 from the IP address where the specified number of echo response packets are not returned or the MAC address where the heartbeat is stopped. Then, the power control unit 112 determines whether the device not operating normally is the main device connection device or the PoE connection device.

  If the power control unit 112 determines that the device not operating normally is the main body connection device, the process proceeds to step S22, and the power control unit 112 determines that the device not operating normally is the PoE connection device. If yes, the process proceeds to step S23.

  [Step S22] The power control unit 100 performs power control. Specifically, the power supply control unit 112 sends the power supply control unit 112 to the first power supply output unit 160 or the second power supply output unit 170 by the power supply unit 140 in order to operate the main body connection device that is not in normal operation determined in step S21. The power supply control unit 112 outputs, to the power supply unit 140, instruction information for temporarily interrupting the power supply and then resuming the power supply.

  [Step S23] The power supply control device 100 creates a control command. Specifically, in order to normalize the PoE connection device 300 not operating normally determined in step S21, the power control unit 112 controls the PoE connection device 300 not operating normally by the PoE power control unit 210. The power control unit 112 creates a control command for temporarily interrupting the power supply and then resuming the power supply.

  [Step S24] The power supply control device 100 transmits a control command. Specifically, the power control unit 112 controls the PoE power control unit 210 included in the PoE power feeding apparatus 200 with reference to the main body connected device information stored in the information storage unit 120 for the control command generated in step S23. Send a command

  [Step S25] The PoE power feeding apparatus 200 receives a control command. Specifically, the PoE power control unit 210 included in the PoE power feeding device 200 receives the control command transmitted by the power control unit 112 in step S24.

  [Step S26] The PoE power feeding device 200 performs power control. Specifically, the PoE power control unit 210 executes power control by the PoE power control unit 210 executing the control command generated and transmitted by the power control unit 112 in step S23 and step S24.

  More specifically, the PoE power control unit 210 executes a control command to temporarily cut off the power supply to the PoE connection device 300 not operating normally by the PoE power control unit 210, and then the power supply is performed. By restarting, the PoE connecting device 300 not operating normally is restarted.

  FIG. 9 is a flow chart showing a process from the power control device receiving the power ON / OFF control signal for remotely operating the PoE connection device in the network until the power control device performs power ON / OFF control. . Hereinafter, the process shown in FIG. 9 will be described in order of step number.

  [Step S31] The power control unit 100 receives a power ON / OFF control signal from the administrator. Specifically, the administrator accesses the power control device 100 from the cloud of the Internet 500 via the router 400 as a gateway, and controls the power ON / OFF control signal for remote control transmitted by the administrator. The part 112 receives.

  [Step S32] The power control unit 100 creates a control command. Specifically, based on the power ON / OFF control signal received in step S31, the power control unit 112 creates a control command to shut off or connect the power supply to the target PoE connection device 300.

  [Step S33] The power control unit 100 transmits a control command. Specifically, the power control unit 112 controls the PoE power control unit 210 included in the PoE power feeding apparatus 200 with reference to the main unit connected device information stored in the information storage unit 120, with the control command generated in step S32. Send

  [Step S34] The PoE power feeding device 200 receives a control command. Specifically, the PoE power control unit 210 included in the PoE power feeding device 200 receives the control command transmitted by the power control unit 112 in step S33.

  [Step S35] The PoE power feeding device 200 performs power control. Specifically, the PoE power control unit 210 executes power control by the PoE power control unit 210 executing the control command generated and transmitted by the power control unit 112 in step S32 and step S33.

  More specifically, the PoE power control unit 210 executes a control command to shut off or connect the power supply to the target PoE connection device 300 instructed by the administrator, thereby enabling the administrator to remotely control the power. ON / OFF control can be performed.

  As described above, the power control device 100 is a device that only performs monitoring and power control, and a large amount of packets are not concentrated, so stable operation can be performed. The stable power control device 100 can stably operate the PoE power feeding device 200 and the router 400 which are easily concentrated with a large amount of packets.

Second Embodiment
Next, a second embodiment of the present invention will be described. The power supply control device of the present embodiment is substantially the same as the configuration shown in the first embodiment except that the number of power supply output parts is different. Therefore, the same reference numerals are given to components substantially similar to those of the first embodiment, and the description thereof is appropriately omitted.

FIG. 10 is a block diagram showing the details of the power control apparatus according to the second embodiment.
As illustrated in FIG. 10, the power control device 100 includes a control unit 110, an information storage unit 120, a communication unit 130, a power supply unit 140, a power supply unit 150, a first power supply output unit 160, a second power supply output unit 170, and a second A three power supply output unit 180 is provided.

  The power supply control device 100 controls power input from an external power supply such as a commercial power supply via the power supply unit 150, and is connected to the first power supply output unit 160, the second power supply output unit 170, and the third power supply output unit 180. And a device for stably operating the PoE connection device 300 (not shown) connected under the PoE power supply devices 200 and 700. is there.

  The power supply unit 140 is connected to the control unit 110, the power supply unit 150, the first power supply output unit 160, the second power supply output unit 170, and the third power supply output unit 180, and from an external power supply such as a commercial power supply via the power supply unit 150. The control unit 110 controls power supplied to the first power output unit 160, the second power output unit 170, and the third power output unit 180 according to an instruction from the control unit 110.

  The third power supply output unit 180 is connected to the power supply unit 140, and is for outputting the power supplied from the power supply unit 140. Specifically, the third power supply output unit 180 is a plug receptacle for the wiring plug-in, and the plug-in plug for the wiring plug-in provided for the connected PoE power supply devices 200 and 700, the router 400, etc. Power is supplied to the main body connection device via the power supply control device 100 after being inserted.

FIG. 11 is a diagram showing the concept of the entire power control system to which the power control device is connected.
As shown in FIG. 11, the power supply control system includes a power supply control device 100, PoE power feeding devices 200 and 700, a PoE connecting device 300, and a router 400, and each device is connected by a network cable and connected to the Internet 500. ing.

  The power supply unit 150 included in the power supply control device 100 is connected to an external power supply 600 such as a commercial power supply, and can supply power to the main body connecting device connected to the power supply control device 100. The communication unit 130 included in the power control device 100 is connected to the downlink port included in the PoE power feeding device 200 via a network cable, and each PoE connection device 300 via the PoE power feeding devices 200 and 700 and the router 400, and It can be connected to the Internet 500.

  The PoE power supply devices 200 and 700 have a communication relay function for relaying communication with the PoE connection device 300 connected thereunder, and a device having a power supply function for supplying power to the PoE connection device 300 connected thereunder. It is.

  The plug of the wiring plug-in for supplying power to the PoE power supply devices 200 and 700 is the first power output unit 160, the second power output unit 170, or the third power output included in the power control device 100. The PoE power supply devices 200 and 700 operate by being connected to the unit 180 and receiving power supply from the power supply control device 100. Here, for the sake of convenience, it is assumed that the PoE power feeding device 200 is connected to the second power output unit 170 and the PoE power feeding device 700 is connected to the third power output unit 180.

  In addition, the PoE power feeding device 700 is internally provided with a PoE power control unit 710. The power supply to the PoE connection device 300 connected under the PoE power feeding device 700 is controlled by the PoE power control unit 710, and power cutoff and connection control PoE power for each PoE connection device 300 as necessary. It is controlled by the part 710.

  The PoE connection device 300 is connected to the downlink side port of the PoE power feeding device 200 and 700 via a network cable, and connected to each PoE connection device 300 and the Internet 500 via the PoE power feeding device 200 and the router 400. Can.

  Further, when the PoE connection device 300 is a device compatible with PoE feeding, by using a twisted pair cable for the PoE feeding device 200, power supply and information communication can be simultaneously performed.

  The PoE connection device 300 is, for example, an access point 310, 350, 360 that supports PoE feeding, webcams 330, 380, IP phones 340, 370, and a personal computer 390, and the PoE feeding devices 200 and 700 via a twisted pair cable. Thus, the power is supplied by the PoE power supply devices 200 and 700 and connected to the network established via the PoE power supply devices 200 and 700.

  Furthermore, the PoE connection device 300 is connected to the downlink side port of the PoE power feeding device 200 and the uplink side port of the PoE power feeding device 700 by a network cable, and connected under the PoE power feeding device 200; The PoE connection devices 300 connected under the PoE power feeding device 700 can communicate with each other.

  As described above, the power control device 100, the PoE connection device 300, the router 400, and the PoE power feeding device 700 are connected to the PoE power feeding device 200 via the network cable, and a network is constructed by each device and information is mutually Can communicate with each other. Each device can also be connected to the Internet 500 via the router 400.

Next, an outline for stably operating the PoE power feeding apparatus 200 and the router 400 will be described.
In the PoE power feeding apparatuses 200 and 700 to which a plurality of PoE connection devices 300 are connected in the network configuration as shown in FIG. 11, communication packets by the PoE connection devices 300 are concentrated. In addition, since the PoE feeding apparatuses 200 and 700 are connected to the Internet 500 via the router 400, communication packets will be concentrated in the router 400 as well.

  If the PoE power supply devices 200 and 700 freeze due to the concentration of communication packets, the PoE connection device 300 connected under the PoE power supply devices 200 and 700 loses power supply and information communication, and PoE Since the connection device 300 will not function properly, the entire constructed network can not be operated stably.

  In addition, when the router 400 freezes due to the concentration of communication packets, the routing process performed by the router 400 and the process of connecting to the Internet 500 are delayed, and the PoE power feeding device 200 and the PoE power feeding devices 200 and 700 are under control. The PoE connection device 300 connected to the will not function properly. That is, in order to operate the network device connected to the constructed network stably, the PoE feeding device 200 and the router 400 have to be operated stably.

  First, the control unit 110 included in the power control device 100 monitors the normal operation of the network device connected via the communication unit 130, and determines whether the connected network device is operating normally.

  Next, consider the case where the control unit 110 determines that the PoE power supply apparatus 700 is not operating normally. The control unit 110 outputs instruction information for temporarily interrupting the supply of power to the third power supply output unit 180 to the power supply unit 140 in order to operate the PoE power supply apparatus 700 normally. Thus, the power supply unit 140 shuts off the supply of power to the third power supply output unit 180, and the PoE power supply apparatus 700 is forcibly shut down.

  Thereafter, at predetermined intervals, the control unit 110 outputs, to the power supply unit 140, instruction information for starting supply of power to the third power supply output unit 180 again. As a result, the PoE power feeding device 700 can be restarted, and the power control device 100 can operate the PoE power feeding device 700 normally.

  Next, consider a case where the control unit 110 determines that the personal computer 390 which is the PoE connection device 300 connected under the PoE power feeding device 700 is not operating normally. In many cases, the personal computer 390 can be operated normally by restarting it, as with the above-mentioned cause of the router 400 or the PoE power supply apparatus 200 not operating properly.

  However, since the personal computer 390 does not directly supply power by the power control device 100, the access point 310 can not be directly restarted by temporarily interrupting and reconnecting the power supply by the power supply unit 140.

  Therefore, the control unit 110 communicates with the PoE power feeding device 700 via the communication unit 130 in order to operate the personal computer 390 normally, and temporarily sends the PC 390 to the PoE power control unit 710 provided in the PoE power feeding device 700. It shuts off the power supply to the power supply, and outputs instruction information to start the power supply again. After that, the control unit 110 transmits a specific command for turning on the power of the computer by remote control like the magic packet to the personal computer 390 via the communication unit 130. As a result, the personal computer 390 can be restarted and operated normally.

  By constructing a power control system as described above, the power control apparatus 100 monitors the normal operation of the PoE power feeding devices 200 and 700, the PoE connecting device 300, and the router 400, and as necessary when the normal operation is not performed. Since the PoE power supply devices 200 and 700 directly connected to the power control device 100 and the router 400 can be restarted and the PoE connection device 300 can be restarted via the PoE power supply device 200, the normal operation rate can be increased. It can be raised. That is, even if the PoE feeder freezes, the PoE feeder and the connection device can be operated stably.

1, 200, 700 PoE power feeding device 10 IP device diagnostic unit 11 uplink side port 12 IP packet relay control unit 13 downlink side PoE port 14 power supply control unit 15 PoE power feeding unit 16 reference data storage unit 20 IP network 30 IP device 100 Power control unit 110 Control unit 111 Monitoring unit 112 Power control unit 120 Information storage unit 121 Main unit connected device information storage unit 122 PoE connected device information storage unit 130 Communication unit 140 Power supply unit 150 Power supply unit 160 First power output unit 170 Second power supply Output section 180 Third power output section 210, 710 PoE power control section 300 PoE connection device 310, 320, 350, 360 Access point 330, 380 Web camera 340, 370 IP phone 390 PC 400 router 500 Internet 60 External power supply

Claims (11)

Power supply control for controlling power to a PoE power supply apparatus comprising PoE power control means for controlling PoE power to connected devices connected under the control and communication relay means for relaying communication with the connected devices connected In the device
First power supply output means for outputting power for input to the PoE power supply device;
Communication means for communicating with the PoE feeding device;
Monitoring means for monitoring normal operation of the PoE power feeding device and the connection device via the communication means;
PoE power feeding device restoration means for restoring the PoE power feeding device when the monitoring means determines that the PoE power feeding device is not normal.
Connected device recovery means for recovering the connected device when it is determined by the monitoring means that the connected device is not normal;
A power control apparatus comprising: The PoE power supply device recovery means is
The power supply control device according to claim 1, wherein the power supply to the first power supply output unit is temporarily shut off and reconnected to restart the PoE power feeding device. The connected device recovery means is
2. The power supply control according to claim 1, further comprising the step of temporarily interrupting the PoE power to the connection device to be restored and outputting an instruction signal for reconnection to the PoE power control means via the communication means. apparatus. The connected device recovery means is
The PoE power control unit temporarily shuts off the PoE power to the connection device to be restored via the communication means, and restarts by transmitting a magic packet to the connection device to be restored. The power supply control device according to claim 1, wherein The monitoring means
A Ping command execution unit that periodically executes a Ping command on the PoE power feeding device and the connection device;
A Poing command determination unit that determines that the PoE feeding device or connection device not responding is not normal when there is no response from the PoE feeding device and connection device that executed the Ping command a predetermined number of times;
The power supply control device according to claim 1, comprising: The monitoring means
A heartbeat signal receiving unit that receives a heartbeat signal periodically transmitted by the PoE power feeding device and the connection device;
A heartbeat determination unit that determines that the PoE power supply device or the connected device that has lost the heartbeat signal is not normal when the heartbeat signal is lost;
The power supply control device according to claim 1, comprising: Notification means for notifying an administrator of the PoE feed device or the connection device of a warning when the monitoring means determines that the PoE feed device or the connection device is not normal.
The power supply control device according to claim 1, comprising: A second power supply output unit configured to output power for inputting to the gateway device connected from the upper layer to the PoE power supply device;
The power supply control device according to claim 1, comprising: Power supply control for controlling power to a PoE power supply apparatus comprising PoE power control means for controlling PoE power to connected devices connected under the control and communication relay means for relaying communication with the connected devices connected In the method
A step of outputting power for input to the PoE power feeding device by first power output means;
Communicating means for communicating with the PoE feeding device;
A monitoring unit monitoring normal operation of the PoE power feeding device and the connection device via the communication unit;
Restoring the PoE power feeding device when the PoE power feeding device restoration means determines that the PoE power feeding device is not normal by the monitoring means;
A step of causing the connection device recovery means to recover the connection device when the monitoring means determines that the connection device is not normal;
A power control method comprising: Power supply control for controlling power to a PoE power supply apparatus comprising PoE power control means for controlling PoE power to connected devices connected under the control and communication relay means for relaying communication with the connected devices connected In the program
Computer,
First power supply output means for outputting power for input to the PoE power supply device;
Communication means for communicating with the PoE feeding device;
Monitoring means for monitoring normal operation of the PoE power feeding device and the connection device via the communication means;
PoE power feeding device restoration means for restoring the PoE power feeding device when it is judged by the monitoring means that the PoE power feeding device is not normal.
Connected device recovery means for recovering the connected device when it is determined by the monitoring means that the connected device is not normal.
A power control program characterized by functioning as PoE power control means for controlling the PoE power supply to the connected devices connected under the control;
Communication relay means for relaying communication with the connected device connected;
A PoE feeding device comprising
First power supply output means for outputting power for input to the PoE power supply device;
Communication means for communicating with the PoE feeding device;
Monitoring means for monitoring normal operation of the PoE power feeding device and the connection device via the communication means;
PoE power feeding device restoration means for restoring the PoE power feeding device when the monitoring means determines that the PoE power feeding device is not normal.
Connected device recovery means for recovering the connected device when it is determined by the monitoring means that the connected device is not normal;
A power control device comprising
A power control system comprising: